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| author | Arnd Bergmann <arnd@arndb.de> | 2013-04-08 19:30:48 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2013-04-08 19:30:48 +0200 |
| commit | dc2d3db8137fba0f62d7517e1bea8a47f69fcbc4 (patch) | |
| tree | aee802680d09fe7c1288138cbfc0db17702e8075 /drivers | |
| parent | 8355ae69afca3b6bcb7b68712f30223455caebda (diff) | |
| parent | 7f585bbfc54fec9dcf387fd2edb2d6f4908badf8 (diff) | |
| download | linux-dc2d3db8137fba0f62d7517e1bea8a47f69fcbc4.tar.gz linux-dc2d3db8137fba0f62d7517e1bea8a47f69fcbc4.tar.bz2 linux-dc2d3db8137fba0f62d7517e1bea8a47f69fcbc4.zip | |
Merge tag 'omap-for-v3.10/timer-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/drivers
From Tony Lindgren <tony@atomide.com>:
Clean-up for omap2+ timers from Jon Hunter <jon-hunter@ti.com>:
This series consists mainly of clean-ups for clockevents and
clocksource timers on OMAP2+ devices. The most significant change
in functionality comes from the 5th patch which is changing the
selection of the clocksource timer for OMAP3 and AM335x devices
when gptimers are used for clocksource.
Note that this series depends on 7185684 (ARM: OMAP: use
consistent error checking) in RMK's tree and 960cba6 (ARM:
OMAP5: timer: Update the clocksource name as per clock data)
in omap-for-v3.10/fixes-non-critical. So this branch is based
on a merge of 7185684 and omap-for-v3.10/fixes-non-critical
to avoid non-trivial merge conflicts.
* tag 'omap-for-v3.10/timer-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP4+: Fix sparse warning in system timers
ARM: OMAP2+: Store ID of system timers in timer structure
ARM: OMAP3: Update clocksource timer selection
ARM: OMAP2+: Simplify system timers definitions
ARM: OMAP2+: Simplify system timer clock definitions
ARM: OMAP2+: Remove hard-coded test on timer ID
ARM: OMAP2+: Display correct system timer name
ARM: OMAP2+: fix typo "CONFIG_BRIDGE_DVFS"
ARM: OMAP1: remove "config MACH_OMAP_HTCWIZARD"
ARM: OMAP: dpll: enable bypass clock only when attempting dpll bypass
ARM: OMAP2+: powerdomain: avoid testing whether an unsigned char is less than 0
ARM: OMAP2+: hwmod: Remove unused _HWMOD_WAKEUP_ENABLED flag
ARM: OMAP2+: am335x: Change the wdt1 func clk src to per_32k clk
ARM: OMAP2+: AM33xx: hwmod: Add missing sysc definition to wdt1 entry
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers')
144 files changed, 2034 insertions, 848 deletions
diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c index 1e5d8a40101e..fefc2ca7cc3e 100644 --- a/drivers/acpi/apei/cper.c +++ b/drivers/acpi/apei/cper.c @@ -405,7 +405,7 @@ int apei_estatus_check(const struct acpi_hest_generic_status *estatus) return rc; data_len = estatus->data_length; gdata = (struct acpi_hest_generic_data *)(estatus + 1); - while (data_len > sizeof(*gdata)) { + while (data_len >= sizeof(*gdata)) { gedata_len = gdata->error_data_length; if (gedata_len > data_len - sizeof(*gdata)) return -EINVAL; diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 0ac546d5e53f..5ff173066127 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -646,6 +646,7 @@ static void handle_root_bridge_insertion(acpi_handle handle) static void handle_root_bridge_removal(struct acpi_device *device) { + acpi_status status; struct acpi_eject_event *ej_event; ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL); @@ -661,7 +662,9 @@ static void handle_root_bridge_removal(struct acpi_device *device) ej_event->device = device; ej_event->event = ACPI_NOTIFY_EJECT_REQUEST; - acpi_bus_hot_remove_device(ej_event); + status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, ej_event); + if (ACPI_FAILURE(status)) + kfree(ej_event); } static void _handle_hotplug_event_root(struct work_struct *work) @@ -676,8 +679,9 @@ static void _handle_hotplug_event_root(struct work_struct *work) handle = hp_work->handle; type = hp_work->type; - root = acpi_pci_find_root(handle); + acpi_scan_lock_acquire(); + root = acpi_pci_find_root(handle); acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer); switch (type) { @@ -711,6 +715,7 @@ static void _handle_hotplug_event_root(struct work_struct *work) break; } + acpi_scan_lock_release(); kfree(hp_work); /* allocated in handle_hotplug_event_bridge */ kfree(buffer.pointer); } diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 24213033fbae..9c1a435d10e6 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -193,6 +193,14 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = { }, { .callback = init_nvs_nosave, + .ident = "Sony Vaio VGN-FW21M", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FW21M"), + }, + }, + { + .callback = init_nvs_nosave, .ident = "Sony Vaio VPCEB17FX", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index 5dc0daed8fac..b81ddfea1da0 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -532,11 +532,11 @@ config BLK_DEV_RBD If unsure, say N. config BLK_DEV_RSXX - tristate "RamSam PCIe Flash SSD Device Driver" + tristate "IBM FlashSystem 70/80 PCIe SSD Device Driver" depends on PCI help Device driver for IBM's high speed PCIe SSD - storage devices: RamSan-70 and RamSan-80. + storage devices: FlashSystem-70 and FlashSystem-80. To compile this driver as a module, choose M here: the module will be called rsxx. diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index ade58bc8f3c4..1c1b8e544aa2 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -4206,7 +4206,7 @@ static int cciss_find_cfgtables(ctlr_info_t *h) if (rc) return rc; h->cfgtable = remap_pci_mem(pci_resource_start(h->pdev, - cfg_base_addr_index) + cfg_offset, sizeof(h->cfgtable)); + cfg_base_addr_index) + cfg_offset, sizeof(*h->cfgtable)); if (!h->cfgtable) return -ENOMEM; rc = write_driver_ver_to_cfgtable(h->cfgtable); diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 747bb2af69dc..fe5f6403417f 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1044,12 +1044,29 @@ static int loop_clr_fd(struct loop_device *lo) lo->lo_state = Lo_unbound; /* This is safe: open() is still holding a reference. */ module_put(THIS_MODULE); - if (lo->lo_flags & LO_FLAGS_PARTSCAN && bdev) - ioctl_by_bdev(bdev, BLKRRPART, 0); lo->lo_flags = 0; if (!part_shift) lo->lo_disk->flags |= GENHD_FL_NO_PART_SCAN; mutex_unlock(&lo->lo_ctl_mutex); + + /* + * Remove all partitions, since BLKRRPART won't remove user + * added partitions when max_part=0 + */ + if (bdev) { + struct disk_part_iter piter; + struct hd_struct *part; + + mutex_lock_nested(&bdev->bd_mutex, 1); + invalidate_partition(bdev->bd_disk, 0); + disk_part_iter_init(&piter, bdev->bd_disk, + DISK_PITER_INCL_EMPTY); + while ((part = disk_part_iter_next(&piter))) + delete_partition(bdev->bd_disk, part->partno); + disk_part_iter_exit(&piter); + mutex_unlock(&bdev->bd_mutex); + } + /* * Need not hold lo_ctl_mutex to fput backing file. * Calling fput holding lo_ctl_mutex triggers a circular @@ -1623,6 +1640,7 @@ static int loop_add(struct loop_device **l, int i) goto out_free_dev; i = err; + err = -ENOMEM; lo->lo_queue = blk_alloc_queue(GFP_KERNEL); if (!lo->lo_queue) goto out_free_dev; diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c index 1788f491e0fb..076ae7f1b781 100644 --- a/drivers/block/mg_disk.c +++ b/drivers/block/mg_disk.c @@ -890,8 +890,10 @@ static int mg_probe(struct platform_device *plat_dev) gpio_direction_output(host->rst, 1); /* reset out pin */ - if (!(prv_data->dev_attr & MG_DEV_MASK)) + if (!(prv_data->dev_attr & MG_DEV_MASK)) { + err = -EINVAL; goto probe_err_3a; + } if (prv_data->dev_attr != MG_BOOT_DEV) { rsc = platform_get_resource_byname(plat_dev, IORESOURCE_IO, diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 11cc9522cdd4..92250af84e7d 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -4224,6 +4224,7 @@ static int mtip_pci_probe(struct pci_dev *pdev, dd->isr_workq = create_workqueue(dd->workq_name); if (!dd->isr_workq) { dev_warn(&pdev->dev, "Can't create wq %d\n", dd->instance); + rv = -ENOMEM; goto block_initialize_err; } @@ -4282,7 +4283,8 @@ static int mtip_pci_probe(struct pci_dev *pdev, INIT_WORK(&dd->work[7].work, mtip_workq_sdbf7); pci_set_master(pdev); - if (pci_enable_msi(pdev)) { + rv = pci_enable_msi(pdev); + if (rv) { dev_warn(&pdev->dev, "Unable to enable MSI interrupt.\n"); goto block_initialize_err; diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 6c81a4c040b9..f556f8a8b3f9 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -1264,6 +1264,32 @@ static bool obj_request_done_test(struct rbd_obj_request *obj_request) return atomic_read(&obj_request->done) != 0; } +static void +rbd_img_obj_request_read_callback(struct rbd_obj_request *obj_request) +{ + dout("%s: obj %p img %p result %d %llu/%llu\n", __func__, + obj_request, obj_request->img_request, obj_request->result, + obj_request->xferred, obj_request->length); + /* + * ENOENT means a hole in the image. We zero-fill the + * entire length of the request. A short read also implies + * zero-fill to the end of the request. Either way we + * update the xferred count to indicate the whole request + * was satisfied. + */ + BUG_ON(obj_request->type != OBJ_REQUEST_BIO); + if (obj_request->result == -ENOENT) { + zero_bio_chain(obj_request->bio_list, 0); + obj_request->result = 0; + obj_request->xferred = obj_request->length; + } else if (obj_request->xferred < obj_request->length && + !obj_request->result) { + zero_bio_chain(obj_request->bio_list, obj_request->xferred); + obj_request->xferred = obj_request->length; + } + obj_request_done_set(obj_request); +} + static void rbd_obj_request_complete(struct rbd_obj_request *obj_request) { dout("%s: obj %p cb %p\n", __func__, obj_request, @@ -1284,23 +1310,10 @@ static void rbd_osd_read_callback(struct rbd_obj_request *obj_request) { dout("%s: obj %p result %d %llu/%llu\n", __func__, obj_request, obj_request->result, obj_request->xferred, obj_request->length); - /* - * ENOENT means a hole in the object. We zero-fill the - * entire length of the request. A short read also implies - * zero-fill to the end of the request. Either way we - * update the xferred count to indicate the whole request - * was satisfied. - */ - if (obj_request->result == -ENOENT) { - zero_bio_chain(obj_request->bio_list, 0); - obj_request->result = 0; - obj_request->xferred = obj_request->length; - } else if (obj_request->xferred < obj_request->length && - !obj_request->result) { - zero_bio_chain(obj_request->bio_list, obj_request->xferred); - obj_request->xferred = obj_request->length; - } - obj_request_done_set(obj_request); + if (obj_request->img_request) + rbd_img_obj_request_read_callback(obj_request); + else + obj_request_done_set(obj_request); } static void rbd_osd_write_callback(struct rbd_obj_request *obj_request) diff --git a/drivers/block/rsxx/Makefile b/drivers/block/rsxx/Makefile index f35cd0b71f7b..b1c53c0aa450 100644 --- a/drivers/block/rsxx/Makefile +++ b/drivers/block/rsxx/Makefile @@ -1,2 +1,2 @@ obj-$(CONFIG_BLK_DEV_RSXX) += rsxx.o -rsxx-y := config.o core.o cregs.o dev.o dma.o +rsxx-objs := config.o core.o cregs.o dev.o dma.o diff --git a/drivers/block/rsxx/config.c b/drivers/block/rsxx/config.c index a295e7e9ee41..10cd530d3e10 100644 --- a/drivers/block/rsxx/config.c +++ b/drivers/block/rsxx/config.c @@ -29,15 +29,13 @@ #include "rsxx_priv.h" #include "rsxx_cfg.h" -static void initialize_config(void *config) +static void initialize_config(struct rsxx_card_cfg *cfg) { - struct rsxx_card_cfg *cfg = config; - cfg->hdr.version = RSXX_CFG_VERSION; cfg->data.block_size = RSXX_HW_BLK_SIZE; cfg->data.stripe_size = RSXX_HW_BLK_SIZE; - cfg->data.vendor_id = RSXX_VENDOR_ID_TMS_IBM; + cfg->data.vendor_id = RSXX_VENDOR_ID_IBM; cfg->data.cache_order = (-1); cfg->data.intr_coal.mode = RSXX_INTR_COAL_DISABLED; cfg->data.intr_coal.count = 0; @@ -181,7 +179,7 @@ int rsxx_load_config(struct rsxx_cardinfo *card) } else { dev_info(CARD_TO_DEV(card), "Initializing card configuration.\n"); - initialize_config(card); + initialize_config(&card->config); st = rsxx_save_config(card); if (st) return st; diff --git a/drivers/block/rsxx/core.c b/drivers/block/rsxx/core.c index e5162487686a..5af21f2db29c 100644 --- a/drivers/block/rsxx/core.c +++ b/drivers/block/rsxx/core.c @@ -30,6 +30,7 @@ #include <linux/reboot.h> #include <linux/slab.h> #include <linux/bitops.h> +#include <linux/delay.h> #include <linux/genhd.h> #include <linux/idr.h> @@ -39,8 +40,8 @@ #define NO_LEGACY 0 -MODULE_DESCRIPTION("IBM RamSan PCIe Flash SSD Device Driver"); -MODULE_AUTHOR("IBM <support@ramsan.com>"); +MODULE_DESCRIPTION("IBM FlashSystem 70/80 PCIe SSD Device Driver"); +MODULE_AUTHOR("Joshua Morris/Philip Kelleher, IBM"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRIVER_VERSION); @@ -52,6 +53,13 @@ static DEFINE_IDA(rsxx_disk_ida); static DEFINE_SPINLOCK(rsxx_ida_lock); /*----------------- Interrupt Control & Handling -------------------*/ + +static void rsxx_mask_interrupts(struct rsxx_cardinfo *card) +{ + card->isr_mask = 0; + card->ier_mask = 0; +} + static void __enable_intr(unsigned int *mask, unsigned int intr) { *mask |= intr; @@ -71,7 +79,8 @@ static void __disable_intr(unsigned int *mask, unsigned int intr) */ void rsxx_enable_ier(struct rsxx_cardinfo *card, unsigned int intr) { - if (unlikely(card->halt)) + if (unlikely(card->halt) || + unlikely(card->eeh_state)) return; __enable_intr(&card->ier_mask, intr); @@ -80,6 +89,9 @@ void rsxx_enable_ier(struct rsxx_cardinfo *card, unsigned int intr) void rsxx_disable_ier(struct rsxx_cardinfo *card, unsigned int intr) { + if (unlikely(card->eeh_state)) + return; + __disable_intr(&card->ier_mask, intr); iowrite32(card->ier_mask, card->regmap + IER); } @@ -87,7 +99,8 @@ void rsxx_disable_ier(struct rsxx_cardinfo *card, unsigned int intr) void rsxx_enable_ier_and_isr(struct rsxx_cardinfo *card, unsigned int intr) { - if (unlikely(card->halt)) + if (unlikely(card->halt) || + unlikely(card->eeh_state)) return; __enable_intr(&card->isr_mask, intr); @@ -97,6 +110,9 @@ void rsxx_enable_ier_and_isr(struct rsxx_cardinfo *card, void rsxx_disable_ier_and_isr(struct rsxx_cardinfo *card, unsigned int intr) { + if (unlikely(card->eeh_state)) + return; + __disable_intr(&card->isr_mask, intr); __disable_intr(&card->ier_mask, intr); iowrite32(card->ier_mask, card->regmap + IER); @@ -115,6 +131,9 @@ static irqreturn_t rsxx_isr(int irq, void *pdata) do { reread_isr = 0; + if (unlikely(card->eeh_state)) + break; + isr = ioread32(card->regmap + ISR); if (isr == 0xffffffff) { /* @@ -161,9 +180,9 @@ static irqreturn_t rsxx_isr(int irq, void *pdata) } /*----------------- Card Event Handler -------------------*/ -static char *rsxx_card_state_to_str(unsigned int state) +static const char * const rsxx_card_state_to_str(unsigned int state) { - static char *state_strings[] = { + static const char * const state_strings[] = { "Unknown", "Shutdown", "Starting", "Formatting", "Uninitialized", "Good", "Shutting Down", "Fault", "Read Only Fault", "dStroying" @@ -304,6 +323,192 @@ static int card_shutdown(struct rsxx_cardinfo *card) return 0; } +static int rsxx_eeh_frozen(struct pci_dev *dev) +{ + struct rsxx_cardinfo *card = pci_get_drvdata(dev); + int i; + int st; + + dev_warn(&dev->dev, "IBM FlashSystem PCI: preparing for slot reset.\n"); + + card->eeh_state = 1; + rsxx_mask_interrupts(card); + + /* + * We need to guarantee that the write for eeh_state and masking + * interrupts does not become reordered. This will prevent a possible + * race condition with the EEH code. + */ + wmb(); + + pci_disable_device(dev); + + st = rsxx_eeh_save_issued_dmas(card); + if (st) + return st; + + rsxx_eeh_save_issued_creg(card); + + for (i = 0; i < card->n_targets; i++) { + if (card->ctrl[i].status.buf) + pci_free_consistent(card->dev, STATUS_BUFFER_SIZE8, + card->ctrl[i].status.buf, + card->ctrl[i].status.dma_addr); + if (card->ctrl[i].cmd.buf) + pci_free_consistent(card->dev, COMMAND_BUFFER_SIZE8, + card->ctrl[i].cmd.buf, + card->ctrl[i].cmd.dma_addr); + } + + return 0; +} + +static void rsxx_eeh_failure(struct pci_dev *dev) +{ + struct rsxx_cardinfo *card = pci_get_drvdata(dev); + int i; + + dev_err(&dev->dev, "IBM FlashSystem PCI: disabling failed card.\n"); + + card->eeh_state = 1; + + for (i = 0; i < card->n_targets; i++) + del_timer_sync(&card->ctrl[i].activity_timer); + + rsxx_eeh_cancel_dmas(card); +} + +static int rsxx_eeh_fifo_flush_poll(struct rsxx_cardinfo *card) +{ + unsigned int status; + int iter = 0; + + /* We need to wait for the hardware to reset */ + while (iter++ < 10) { + status = ioread32(card->regmap + PCI_RECONFIG); + + if (status & RSXX_FLUSH_BUSY) { + ssleep(1); + continue; + } + + if (status & RSXX_FLUSH_TIMEOUT) + dev_warn(CARD_TO_DEV(card), "HW: flash controller timeout\n"); + return 0; + } + + /* Hardware failed resetting itself. */ + return -1; +} + +static pci_ers_result_t rsxx_error_detected(struct pci_dev *dev, + enum pci_channel_state error) +{ + int st; + + if (dev->revision < RSXX_EEH_SUPPORT) + return PCI_ERS_RESULT_NONE; + + if (error == pci_channel_io_perm_failure) { + rsxx_eeh_failure(dev); + return PCI_ERS_RESULT_DISCONNECT; + } + + st = rsxx_eeh_frozen(dev); + if (st) { + dev_err(&dev->dev, "Slot reset setup failed\n"); + rsxx_eeh_failure(dev); + return PCI_ERS_RESULT_DISCONNECT; + } + + return PCI_ERS_RESULT_NEED_RESET; +} + +static pci_ers_result_t rsxx_slot_reset(struct pci_dev *dev) +{ + struct rsxx_cardinfo *card = pci_get_drvdata(dev); + unsigned long flags; + int i; + int st; + + dev_warn(&dev->dev, + "IBM FlashSystem PCI: recovering from slot reset.\n"); + + st = pci_enable_device(dev); + if (st) + goto failed_hw_setup; + + pci_set_master(dev); + + st = rsxx_eeh_fifo_flush_poll(card); + if (st) + goto failed_hw_setup; + + rsxx_dma_queue_reset(card); + + for (i = 0; i < card->n_targets; i++) { + st = rsxx_hw_buffers_init(dev, &card->ctrl[i]); + if (st) + goto failed_hw_buffers_init; + } + + if (card->config_valid) + rsxx_dma_configure(card); + + /* Clears the ISR register from spurious interrupts */ + st = ioread32(card->regmap + ISR); + + card->eeh_state = 0; + + st = rsxx_eeh_remap_dmas(card); + if (st) + goto failed_remap_dmas; + + spin_lock_irqsave(&card->irq_lock, flags); + if (card->n_targets & RSXX_MAX_TARGETS) + rsxx_enable_ier_and_isr(card, CR_INTR_ALL_G); + else + rsxx_enable_ier_and_isr(card, CR_INTR_ALL_C); + spin_unlock_irqrestore(&card->irq_lock, flags); + + rsxx_kick_creg_queue(card); + + for (i = 0; i < card->n_targets; i++) { + spin_lock(&card->ctrl[i].queue_lock); + if (list_empty(&card->ctrl[i].queue)) { + spin_unlock(&card->ctrl[i].queue_lock); + continue; + } + spin_unlock(&card->ctrl[i].queue_lock); + + queue_work(card->ctrl[i].issue_wq, + &card->ctrl[i].issue_dma_work); + } + + dev_info(&dev->dev, "IBM FlashSystem PCI: recovery complete.\n"); + + return PCI_ERS_RESULT_RECOVERED; + +failed_hw_buffers_init: +failed_remap_dmas: + for (i = 0; i < card->n_targets; i++) { + if (card->ctrl[i].status.buf) + pci_free_consistent(card->dev, + STATUS_BUFFER_SIZE8, + card->ctrl[i].status.buf, + card->ctrl[i].status.dma_addr); + if (card->ctrl[i].cmd.buf) + pci_free_consistent(card->dev, + COMMAND_BUFFER_SIZE8, + card->ctrl[i].cmd.buf, + card->ctrl[i].cmd.dma_addr); + } +failed_hw_setup: + rsxx_eeh_failure(dev); + return PCI_ERS_RESULT_DISCONNECT; + +} + /*----------------- Driver Initialization & Setup -------------------*/ /* Returns: 0 if the driver is compatible with the device -1 if the driver is NOT compatible with the device */ @@ -383,6 +588,7 @@ static int rsxx_pci_probe(struct pci_dev *dev, spin_lock_init(&card->irq_lock); card->halt = 0; + card->eeh_state = 0; spin_lock_irq(&card->irq_lock); rsxx_disable_ier_and_isr(card, CR_INTR_ALL); @@ -538,9 +744,6 @@ static void rsxx_pci_remove(struct pci_dev *dev) rsxx_disable_ier_and_isr(card, CR_INTR_EVENT); spin_unlock_irqrestore(&card->irq_lock, flags); - /* Prevent work_structs from re-queuing themselves. */ - card->halt = 1; - cancel_work_sync(&card->event_work); rsxx_destroy_dev(card); @@ -549,6 +752,10 @@ static void rsxx_pci_remove(struct pci_dev *dev) spin_lock_irqsave(&card->irq_lock, flags); rsxx_disable_ier_and_isr(card, CR_INTR_ALL); spin_unlock_irqrestore(&card->irq_lock, flags); + + /* Prevent work_structs from re-queuing themselves. */ + card->halt = 1; + free_irq(dev->irq, card); if (!force_legacy) @@ -592,11 +799,14 @@ static void rsxx_pci_shutdown(struct pci_dev *dev) card_shutdown(card); } +static const struct pci_error_handlers rsxx_err_handler = { + .error_detected = rsxx_error_detected, + .slot_reset = rsxx_slot_reset, +}; + static DEFINE_PCI_DEVICE_TABLE(rsxx_pci_ids) = { - {PCI_DEVICE(PCI_VENDOR_ID_TMS_IBM, PCI_DEVICE_ID_RS70_FLASH)}, - {PCI_DEVICE(PCI_VENDOR_ID_TMS_IBM, PCI_DEVICE_ID_RS70D_FLASH)}, - {PCI_DEVICE(PCI_VENDOR_ID_TMS_IBM, PCI_DEVICE_ID_RS80_FLASH)}, - {PCI_DEVICE(PCI_VENDOR_ID_TMS_IBM, PCI_DEVICE_ID_RS81_FLASH)}, + {PCI_DEVICE(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_FS70_FLASH)}, + {PCI_DEVICE(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_FS80_FLASH)}, {0,}, }; @@ -609,6 +819,7 @@ static struct pci_driver rsxx_pci_driver = { .remove = rsxx_pci_remove, .suspend = rsxx_pci_suspend, .shutdown = rsxx_pci_shutdown, + .err_handler = &rsxx_err_handler, }; static int __init rsxx_core_init(void) diff --git a/drivers/block/rsxx/cregs.c b/drivers/block/rsxx/cregs.c index 80bbe639fccd..4b5c020a0a65 100644 --- a/drivers/block/rsxx/cregs.c +++ b/drivers/block/rsxx/cregs.c @@ -58,7 +58,7 @@ static struct kmem_cache *creg_cmd_pool; #error Unknown endianess!!! Aborting... #endif -static void copy_to_creg_data(struct rsxx_cardinfo *card, +static int copy_to_creg_data(struct rsxx_cardinfo *card, int cnt8, void *buf, unsigned int stream) @@ -66,6 +66,9 @@ static void copy_to_creg_data(struct rsxx_cardinfo *card, int i = 0; u32 *data = buf; + if (unlikely(card->eeh_state)) + return -EIO; + for (i = 0; cnt8 > 0; i++, cnt8 -= 4) { /* * Firmware implementation makes it necessary to byte swap on @@ -76,10 +79,12 @@ static void copy_to_creg_data(struct rsxx_cardinfo *card, else iowrite32(data[i], card->regmap + CREG_DATA(i)); } + + return 0; } -static void copy_from_creg_data(struct rsxx_cardinfo *card, +static int copy_from_creg_data(struct rsxx_cardinfo *card, int cnt8, void *buf, unsigned int stream) @@ -87,6 +92,9 @@ static void copy_from_creg_data(struct rsxx_cardinfo *card, int i = 0; u32 *data = buf; + if (unlikely(card->eeh_state)) + return -EIO; + for (i = 0; cnt8 > 0; i++, cnt8 -= 4) { /* * Firmware implementation makes it necessary to byte swap on @@ -97,41 +105,31 @@ static void copy_from_creg_data(struct rsxx_cardinfo *card, else data[i] = ioread32(card->regmap + CREG_DATA(i)); } -} - -static struct creg_cmd *pop_active_cmd(struct rsxx_cardinfo *card) -{ - struct creg_cmd *cmd; - /* - * Spin lock is needed because this can be called in atomic/interrupt - * context. - */ - spin_lock_bh(&card->creg_ctrl.lock); - cmd = card->creg_ctrl.active_cmd; - card->creg_ctrl.active_cmd = NULL; - spin_unlock_bh(&card->creg_ctrl.lock); - - return cmd; + return 0; } static void creg_issue_cmd(struct rsxx_cardinfo *card, struct creg_cmd *cmd) { + int st; + + if (unlikely(card->eeh_state)) + return; + iowrite32(cmd->addr, card->regmap + CREG_ADD); iowrite32(cmd->cnt8, card->regmap + CREG_CNT); if (cmd->op == CREG_OP_WRITE) { - if (cmd->buf) - copy_to_creg_data(card, cmd->cnt8, - cmd->buf, cmd->stream); + if (cmd->buf) { + st = copy_to_creg_data(card, cmd->cnt8, + cmd->buf, cmd->stream); + if (st) + return; + } } - /* - * Data copy must complete before initiating the command. This is - * needed for weakly ordered processors (i.e. PowerPC), so that all - * neccessary registers are written before we kick the hardware. - */ - wmb(); + if (unlikely(card->eeh_state)) + return; /* Setting the valid bit will kick off the command. */ iowrite32(cmd->op, card->regmap + CREG_CMD); @@ -196,11 +194,11 @@ static int creg_queue_cmd(struct rsxx_cardinfo *card, cmd->cb_private = cb_private; cmd->status = 0; - spin_lock(&card->creg_ctrl.lock); + spin_lock_bh(&card->creg_ctrl.lock); list_add_tail(&cmd->list, &card->creg_ctrl.queue); card->creg_ctrl.q_depth++; creg_kick_queue(card); - spin_unlock(&card->creg_ctrl.lock); + spin_unlock_bh(&card->creg_ctrl.lock); return 0; } @@ -210,7 +208,11 @@ static void creg_cmd_timed_out(unsigned long data) struct rsxx_cardinfo *card = (struct rsxx_cardinfo *) data; struct creg_cmd *cmd; - cmd = pop_active_cmd(card); + spin_lock(&card->creg_ctrl.lock); + cmd = card->creg_ctrl.active_cmd; + card->creg_ctrl.active_cmd = NULL; + spin_unlock(&card->creg_ctrl.lock); + if (cmd == NULL) { card->creg_ctrl.creg_stats.creg_timeout++; dev_warn(CARD_TO_DEV(card), @@ -247,7 +249,11 @@ static void creg_cmd_done(struct work_struct *work) if (del_timer_sync(&card->creg_ctrl.cmd_timer) == 0) card->creg_ctrl.creg_stats.failed_cancel_timer++; - cmd = pop_active_cmd(card); + spin_lock_bh(&card->creg_ctrl.lock); + cmd = card->creg_ctrl.active_cmd; + card->creg_ctrl.active_cmd = NULL; + spin_unlock_bh(&card->creg_ctrl.lock); + if (cmd == NULL) { dev_err(CARD_TO_DEV(card), "Spurious creg interrupt!\n"); @@ -287,7 +293,7 @@ static void creg_cmd_done(struct work_struct *work) goto creg_done; } - copy_from_creg_data(card, cnt8, cmd->buf, cmd->stream); + st = copy_from_creg_data(card, cnt8, cmd->buf, cmd->stream); } creg_done: @@ -296,10 +302,10 @@ creg_done: kmem_cache_free(creg_cmd_pool, cmd); - spin_lock(&card->creg_ctrl.lock); + spin_lock_bh(&card->creg_ctrl.lock); card->creg_ctrl.active = 0; creg_kick_queue(card); - spin_unlock(&card->creg_ctrl.lock); + spin_unlock_bh(&card->creg_ctrl.lock); } static void creg_reset(struct rsxx_cardinfo *card) @@ -324,7 +330,7 @@ static void creg_reset(struct rsxx_cardinfo *card) "Resetting creg interface for recovery\n"); /* Cancel outstanding commands */ - spin_lock(&card->creg_ctrl.lock); + spin_lock_bh(&card->creg_ctrl.lock); list_for_each_entry_safe(cmd, tmp, &card->creg_ctrl.queue, list) { list_del(&cmd->list); card->creg_ctrl.q_depth--; @@ -345,7 +351,7 @@ static void creg_reset(struct rsxx_cardinfo *card) card->creg_ctrl.active = 0; } - spin_unlock(&card->creg_ctrl.lock); + spin_unlock_bh(&card->creg_ctrl.lock); card->creg_ctrl.reset = 0; spin_lock_irqsave(&card->irq_lock, flags); @@ -399,12 +405,12 @@ static int __issue_creg_rw(struct rsxx_cardinfo *card, return st; /* - * This timeout is neccessary for unresponsive hardware. The additional + * This timeout is necessary for unresponsive hardware. The additional * 20 seconds to used to guarantee that each cregs requests has time to * complete. */ - timeout = msecs_to_jiffies((CREG_TIMEOUT_MSEC * - card->creg_ctrl.q_depth) + 20000); + timeout = msecs_to_jiffies(CREG_TIMEOUT_MSEC * + card->creg_ctrl.q_depth + 20000); /* * The creg interface is guaranteed to complete. It has a timeout @@ -690,6 +696,32 @@ int rsxx_reg_access(struct rsxx_cardinfo *card, return 0; } +void rsxx_eeh_save_issued_creg(struct rsxx_cardinfo *card) +{ + struct creg_cmd *cmd = NULL; + + cmd = card->creg_ctrl.active_cmd; + card->creg_ctrl.active_cmd = NULL; + + if (cmd) { + del_timer_sync(&card->creg_ctrl.cmd_timer); + + spin_lock_bh(&card->creg_ctrl.lock); + list_add(&cmd->list, &card->creg_ctrl.queue); + card->creg_ctrl.q_depth++; + card->creg_ctrl.active = 0; + spin_unlock_bh(&card->creg_ctrl.lock); + } +} + +void rsxx_kick_creg_queue(struct rsxx_cardinfo *card) +{ + spin_lock_bh(&card->creg_ctrl.lock); + if (!list_empty(&card->creg_ctrl.queue)) + creg_kick_queue(card); + spin_unlock_bh(&card->creg_ctrl.lock); +} + /*------------ Initialization & Setup --------------*/ int rsxx_creg_setup(struct rsxx_cardinfo *card) { @@ -712,7 +744,7 @@ void rsxx_creg_destroy(struct rsxx_cardinfo *card) int cnt = 0; /* Cancel outstanding commands */ - spin_lock(&card->creg_ctrl.lock); + spin_lock_bh(&card->creg_ctrl.lock); list_for_each_entry_safe(cmd, tmp, &card->creg_ctrl.queue, list) { list_del(&cmd->list); if (cmd->cb) @@ -737,7 +769,7 @@ void rsxx_creg_destroy(struct rsxx_cardinfo *card) "Canceled active creg command\n"); kmem_cache_free(creg_cmd_pool, cmd); } - spin_unlock(&card->creg_ctrl.lock); + spin_unlock_bh(&card->creg_ctrl.lock); cancel_work_sync(&card->creg_ctrl.done_work); } diff --git a/drivers/block/rsxx/dma.c b/drivers/block/rsxx/dma.c index 63176e67662f..0607513cfb41 100644 --- a/drivers/block/rsxx/dma.c +++ b/drivers/block/rsxx/dma.c @@ -28,7 +28,7 @@ struct rsxx_dma { struct list_head list; u8 cmd; - unsigned int laddr; /* Logical address on the ramsan */ + unsigned int laddr; /* Logical address */ struct { u32 off; u32 cnt; @@ -81,9 +81,6 @@ enum rsxx_hw_status { HW_STATUS_FAULT = 0x08, }; -#define STATUS_BUFFER_SIZE8 4096 -#define COMMAND_BUFFER_SIZE8 4096 - static struct kmem_cache *rsxx_dma_pool; struct dma_tracker { @@ -122,7 +119,7 @@ static unsigned int rsxx_get_dma_tgt(struct rsxx_cardinfo *card, u64 addr8) return tgt; } -static void rsxx_dma_queue_reset(struct rsxx_cardinfo *card) +void rsxx_dma_queue_reset(struct rsxx_cardinfo *card) { /* Reset all DMA Command/Status Queues */ iowrite32(DMA_QUEUE_RESET, card->regmap + RESET); @@ -210,7 +207,8 @@ static void dma_intr_coal_auto_tune(struct rsxx_cardinfo *card) u32 q_depth = 0; u32 intr_coal; - if (card->config.data.intr_coal.mode != RSXX_INTR_COAL_AUTO_TUNE) + if (card->config.data.intr_coal.mode != RSXX_INTR_COAL_AUTO_TUNE || + unlikely(card->eeh_state)) return; for (i = 0; i < card->n_targets; i++) @@ -223,31 +221,26 @@ static void dma_intr_coal_auto_tune(struct rsxx_cardinfo *card) } /*----------------- RSXX DMA Handling -------------------*/ -static void rsxx_complete_dma(struct rsxx_cardinfo *card, +static void rsxx_complete_dma(struct rsxx_dma_ctrl *ctrl, struct rsxx_dma *dma, unsigned int status) { if (status & DMA_SW_ERR) - printk_ratelimited(KERN_ERR - "SW Error in DMA(cmd x%02x, laddr x%08x)\n", - dma->cmd, dma->laddr); + ctrl->stats.dma_sw_err++; if (status & DMA_HW_FAULT) - printk_ratelimited(KERN_ERR - "HW Fault in DMA(cmd x%02x, laddr x%08x)\n", - dma->cmd, dma->laddr); + ctrl->stats.dma_hw_fault++; if (status & DMA_CANCELLED) - printk_ratelimited(KERN_ERR - "DMA Cancelled(cmd x%02x, laddr x%08x)\n", - dma->cmd, dma->laddr); + ctrl->stats.dma_cancelled++; if (dma->dma_addr) - pci_unmap_page(card->dev, dma->dma_addr, get_dma_size(dma), + pci_unmap_page(ctrl->card->dev, dma->dma_addr, + get_dma_size(dma), dma->cmd == HW_CMD_BLK_WRITE ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE); if (dma->cb) - dma->cb(card, dma->cb_data, status ? 1 : 0); + dma->cb(ctrl->card, dma->cb_data, status ? 1 : 0); kmem_cache_free(rsxx_dma_pool, dma); } @@ -330,14 +323,15 @@ static void rsxx_handle_dma_error(struct rsxx_dma_ctrl *ctrl, if (requeue_cmd) rsxx_requeue_dma(ctrl, dma); else - rsxx_complete_dma(ctrl->card, dma, status); + rsxx_complete_dma(ctrl, dma, status); } static void dma_engine_stalled(unsigned long data) { struct rsxx_dma_ctrl *ctrl = (struct rsxx_dma_ctrl *)data; - if (atomic_read(&ctrl->stats.hw_q_depth) == 0) + if (atomic_read(&ctrl->stats.hw_q_depth) == 0 || + unlikely(ctrl->card->eeh_state)) return; if (ctrl->cmd.idx != ioread32(ctrl->regmap + SW_CMD_IDX)) { @@ -369,7 +363,8 @@ static void rsxx_issue_dmas(struct work_struct *work) ctrl = container_of(work, struct rsxx_dma_ctrl, issue_dma_work); hw_cmd_buf = ctrl->cmd.buf; - if (unlikely(ctrl->card->halt)) + if (unlikely(ctrl->card->halt) || + unlikely(ctrl->card->eeh_state)) return; while (1) { @@ -397,7 +392,7 @@ static void rsxx_issue_dmas(struct work_struct *work) */ if (unlikely(ctrl->card->dma_fault)) { push_tracker(ctrl->trackers, tag); - rsxx_complete_dma(ctrl->card, dma, DMA_CANCELLED); + rsxx_complete_dma(ctrl, dma, DMA_CANCELLED); continue; } @@ -432,19 +427,15 @@ static void rsxx_issue_dmas(struct work_struct *work) /* Let HW know we've queued commands. */ if (cmds_pending) { - /* - * We must guarantee that the CPU writes to 'ctrl->cmd.buf' - * (which is in PCI-consistent system-memory) from the loop - * above make it into the coherency domain before the - * following PIO "trigger" updating the cmd.idx. A WMB is - * sufficient. We need not explicitly CPU cache-flush since - * the memory is a PCI-consistent (ie; coherent) mapping. - */ - wmb(); - atomic_add(cmds_pending, &ctrl->stats.hw_q_depth); mod_timer(&ctrl->activity_timer, jiffies + DMA_ACTIVITY_TIMEOUT); + + if (unlikely(ctrl->card->eeh_state)) { + del_timer_sync(&ctrl->activity_timer); + return; + } + iowrite32(ctrl->cmd.idx, ctrl->regmap + SW_CMD_IDX); } } @@ -463,7 +454,8 @@ static void rsxx_dma_done(struct work_struct *work) hw_st_buf = ctrl->status.buf; if (unlikely(ctrl->card->halt) || - unlikely(ctrl->card->dma_fault)) + unlikely(ctrl->card->dma_fault) || + unlikely(ctrl->card->eeh_state)) return; count = le16_to_cpu(hw_st_buf[ctrl->status.idx].count); @@ -508,7 +500,7 @@ static void rsxx_dma_done(struct work_struct *work) if (status) rsxx_handle_dma_error(ctrl, dma, status); else - rsxx_complete_dma(ctrl->card, dma, 0); + rsxx_complete_dma(ctrl, dma, 0); push_tracker(ctrl->trackers, tag); @@ -727,20 +719,54 @@ bvec_err: /*----------------- DMA Engine Initialization & Setup -------------------*/ +int rsxx_hw_buffers_init(struct pci_dev *dev, struct rsxx_dma_ctrl *ctrl) +{ + ctrl->status.buf = pci_alloc_consistent(dev, STATUS_BUFFER_SIZE8, + &ctrl->status.dma_addr); + ctrl->cmd.buf = pci_alloc_consistent(dev, COMMAND_BUFFER_SIZE8, + &ctrl->cmd.dma_addr); + if (ctrl->status.buf == NULL || ctrl->cmd.buf == NULL) + return -ENOMEM; + + memset(ctrl->status.buf, 0xac, STATUS_BUFFER_SIZE8); + iowrite32(lower_32_bits(ctrl->status.dma_addr), + ctrl->regmap + SB_ADD_LO); + iowrite32(upper_32_bits(ctrl->status.dma_addr), + ctrl->regmap + SB_ADD_HI); + + memset(ctrl->cmd.buf, 0x83, COMMAND_BUFFER_SIZE8); + iowrite32(lower_32_bits(ctrl->cmd.dma_addr), ctrl->regmap + CB_ADD_LO); + iowrite32(upper_32_bits(ctrl->cmd.dma_addr), ctrl->regmap + CB_ADD_HI); + + ctrl->status.idx = ioread32(ctrl->regmap + HW_STATUS_CNT); + if (ctrl->status.idx > RSXX_MAX_OUTSTANDING_CMDS) { + dev_crit(&dev->dev, "Failed reading status cnt x%x\n", + ctrl->status.idx); + return -EINVAL; + } + iowrite32(ctrl->status.idx, ctrl->regmap + HW_STATUS_CNT); + iowrite32(ctrl->status.idx, ctrl->regmap + SW_STATUS_CNT); + + ctrl->cmd.idx = ioread32(ctrl->regmap + HW_CMD_IDX); + if (ctrl->cmd.idx > RSXX_MAX_OUTSTANDING_CMDS) { + dev_crit(&dev->dev, "Failed reading cmd cnt x%x\n", + ctrl->status.idx); + return -EINVAL; + } + iowrite32(ctrl->cmd.idx, ctrl->regmap + HW_CMD_IDX); + iowrite32(ctrl->cmd.idx, ctrl->regmap + SW_CMD_IDX); + + return 0; +} + static int rsxx_dma_ctrl_init(struct pci_dev *dev, struct rsxx_dma_ctrl *ctrl) { int i; + int st; memset(&ctrl->stats, 0, sizeof(ctrl->stats)); - ctrl->status.buf = pci_alloc_consistent(dev, STATUS_BUFFER_SIZE8, - &ctrl->status.dma_addr); - ctrl->cmd.buf = pci_alloc_consistent(dev, COMMAND_BUFFER_SIZE8, - &ctrl->cmd.dma_addr); - if (ctrl->status.buf == NULL || ctrl->cmd.buf == NULL) - return -ENOMEM; - ctrl->trackers = vmalloc(DMA_TRACKER_LIST_SIZE8); if (!ctrl->trackers) return -ENOMEM; @@ -770,35 +796,9 @@ static int rsxx_dma_ctrl_init(struct pci_dev *dev, INIT_WORK(&ctrl->issue_dma_work, rsxx_issue_dmas); INIT_WORK(&ctrl->dma_done_work, rsxx_dma_done); - memset(ctrl->status.buf, 0xac, STATUS_BUFFER_SIZE8); - iowrite32(lower_32_bits(ctrl->status.dma_addr), - ctrl->regmap + SB_ADD_LO); - iowrite32(upper_32_bits(ctrl->status.dma_addr), - ctrl->regmap + SB_ADD_HI); - - memset(ctrl->cmd.buf, 0x83, COMMAND_BUFFER_SIZE8); - iowrite32(lower_32_bits(ctrl->cmd.dma_addr), ctrl->regmap + CB_ADD_LO); - iowrite32(upper_32_bits(ctrl->cmd.dma_addr), ctrl->regmap + CB_ADD_HI); - - ctrl->status.idx = ioread32(ctrl->regmap + HW_STATUS_CNT); - if (ctrl->status.idx > RSXX_MAX_OUTSTANDING_CMDS) { - dev_crit(&dev->dev, "Failed reading status cnt x%x\n", - ctrl->status.idx); - return -EINVAL; - } - iowrite32(ctrl->status.idx, ctrl->regmap + HW_STATUS_CNT); - iowrite32(ctrl->status.idx, ctrl->regmap + SW_STATUS_CNT); - - ctrl->cmd.idx = ioread32(ctrl->regmap + HW_CMD_IDX); - if (ctrl->cmd.idx > RSXX_MAX_OUTSTANDING_CMDS) { - dev_crit(&dev->dev, "Failed reading cmd cnt x%x\n", - ctrl->status.idx); - return -EINVAL; - } - iowrite32(ctrl->cmd.idx, ctrl->regmap + HW_CMD_IDX); - iowrite32(ctrl->cmd.idx, ctrl->regmap + SW_CMD_IDX); - - wmb(); + st = rsxx_hw_buffers_init(dev, ctrl); + if (st) + return st; return 0; } @@ -834,7 +834,7 @@ static int rsxx_dma_stripe_setup(struct rsxx_cardinfo *card, return 0; } -static int rsxx_dma_configure(struct rsxx_cardinfo *card) +int rsxx_dma_configure(struct rsxx_cardinfo *card) { u32 intr_coal; @@ -980,6 +980,103 @@ void rsxx_dma_destroy(struct rsxx_cardinfo *card) } } +int rsxx_eeh_save_issued_dmas(struct rsxx_cardinfo *card) +{ + int i; + int j; + int cnt; + struct rsxx_dma *dma; + struct list_head *issued_dmas; + + issued_dmas = kzalloc(sizeof(*issued_dmas) * card->n_targets, + GFP_KERNEL); + if (!issued_dmas) + return -ENOMEM; + + for (i = 0; i < card->n_targets; i++) { + INIT_LIST_HEAD(&issued_dmas[i]); + cnt = 0; + for (j = 0; j < RSXX_MAX_OUTSTANDING_CMDS; j++) { + dma = get_tracker_dma(card->ctrl[i].trackers, j); + if (dma == NULL) + continue; + + if (dma->cmd == HW_CMD_BLK_WRITE) + card->ctrl[i].stats.writes_issued--; + else if (dma->cmd == HW_CMD_BLK_DISCARD) + card->ctrl[i].stats.discards_issued--; + else + card->ctrl[i].stats.reads_issued--; + + list_add_tail(&dma->list, &issued_dmas[i]); + push_tracker(card->ctrl[i].trackers, j); + cnt++; + } + + spin_lock(&card->ctrl[i].queue_lock); + list_splice(&issued_dmas[i], &card->ctrl[i].queue); + + atomic_sub(cnt, &card->ctrl[i].stats.hw_q_depth); + card->ctrl[i].stats.sw_q_depth += cnt; + card->ctrl[i].e_cnt = 0; + + list_for_each_entry(dma, &card->ctrl[i].queue, list) { + if (dma->dma_addr) + pci_unmap_page(card->dev, dma->dma_addr, + get_dma_size(dma), + dma->cmd == HW_CMD_BLK_WRITE ? + PCI_DMA_TODEVICE : + PCI_DMA_FROMDEVICE); + } + spin_unlock(&card->ctrl[i].queue_lock); + } + + kfree(issued_dmas); + + return 0; +} + +void rsxx_eeh_cancel_dmas(struct rsxx_cardinfo *card) +{ + struct rsxx_dma *dma; + struct rsxx_dma *tmp; + int i; + + for (i = 0; i < card->n_targets; i++) { + spin_lock(&card->ctrl[i].queue_lock); + list_for_each_entry_safe(dma, tmp, &card->ctrl[i].queue, list) { + list_del(&dma->list); + + rsxx_complete_dma(&card->ctrl[i], dma, DMA_CANCELLED); + } + spin_unlock(&card->ctrl[i].queue_lock); + } +} + +int rsxx_eeh_remap_dmas(struct rsxx_cardinfo *card) +{ + struct rsxx_dma *dma; + int i; + + for (i = 0; i < card->n_targets; i++) { + spin_lock(&card->ctrl[i].queue_lock); + list_for_each_entry(dma, &card->ctrl[i].queue, list) { + dma->dma_addr = pci_map_page(card->dev, dma->page, + dma->pg_off, get_dma_size(dma), + dma->cmd == HW_CMD_BLK_WRITE ? + PCI_DMA_TODEVICE : + PCI_DMA_FROMDEVICE); + if (!dma->dma_addr) { + spin_unlock(&card->ctrl[i].queue_lock); + kmem_cache_free(rsxx_dma_pool, dma); + return -ENOMEM; + } + } + spin_unlock(&card->ctrl[i].queue_lock); + } + + return 0; +} int rsxx_dma_init(void) { diff --git a/drivers/block/rsxx/rsxx.h b/drivers/block/rsxx/rsxx.h index 2e50b65902b7..24ba3642bd89 100644 --- a/drivers/block/rsxx/rsxx.h +++ b/drivers/block/rsxx/rsxx.h @@ -27,15 +27,17 @@ /*----------------- IOCTL Definitions -------------------*/ +#define RSXX_MAX_DATA 8 + struct rsxx_reg_access { __u32 addr; __u32 cnt; __u32 stat; __u32 stream; - __u32 data[8]; + __u32 data[RSXX_MAX_DATA]; }; -#define RSXX_MAX_REG_CNT (8 * (sizeof(__u32))) +#define RSXX_MAX_REG_CNT (RSXX_MAX_DATA * (sizeof(__u32))) #define RSXX_IOC_MAGIC 'r' diff --git a/drivers/block/rsxx/rsxx_cfg.h b/drivers/block/rsxx/rsxx_cfg.h index c025fe5fdb70..f384c943846d 100644 --- a/drivers/block/rsxx/rsxx_cfg.h +++ b/drivers/block/rsxx/rsxx_cfg.h @@ -58,7 +58,7 @@ struct rsxx_card_cfg { }; /* Vendor ID Values */ -#define RSXX_VENDOR_ID_TMS_IBM 0 +#define RSXX_VENDOR_ID_IBM 0 #define RSXX_VENDOR_ID_DSI 1 #define RSXX_VENDOR_COUNT 2 diff --git a/drivers/block/rsxx/rsxx_priv.h b/drivers/block/rsxx/rsxx_priv.h index a1ac907d8f4c..382e8bf5c03b 100644 --- a/drivers/block/rsxx/rsxx_priv.h +++ b/drivers/block/rsxx/rsxx_priv.h @@ -45,16 +45,13 @@ struct proc_cmd; -#define PCI_VENDOR_ID_TMS_IBM 0x15B6 -#define PCI_DEVICE_ID_RS70_FLASH 0x0019 -#define PCI_DEVICE_ID_RS70D_FLASH 0x001A -#define PCI_DEVICE_ID_RS80_FLASH 0x001C -#define PCI_DEVICE_ID_RS81_FLASH 0x001E +#define PCI_DEVICE_ID_FS70_FLASH 0x04A9 +#define PCI_DEVICE_ID_FS80_FLASH 0x04AA #define RS70_PCI_REV_SUPPORTED 4 #define DRIVER_NAME "rsxx" -#define DRIVER_VERSION "3.7" +#define DRIVER_VERSION "4.0" /* Block size is 4096 */ #define RSXX_HW_BLK_SHIFT 12 @@ -67,6 +64,9 @@ struct proc_cmd; #define RSXX_MAX_OUTSTANDING_CMDS 255 #define RSXX_CS_IDX_MASK 0xff +#define STATUS_BUFFER_SIZE8 4096 +#define COMMAND_BUFFER_SIZE8 4096 + #define RSXX_MAX_TARGETS 8 struct dma_tracker_list; @@ -91,6 +91,9 @@ struct rsxx_dma_stats { u32 discards_failed; u32 done_rescheduled; u32 issue_rescheduled; + u32 dma_sw_err; + u32 dma_hw_fault; + u32 dma_cancelled; u32 sw_q_depth; /* Number of DMAs on the SW queue. */ atomic_t hw_q_depth; /* Number of DMAs queued to HW. */ }; @@ -116,6 +119,7 @@ struct rsxx_dma_ctrl { struct rsxx_cardinfo { struct pci_dev *dev; unsigned int halt; + unsigned int eeh_state; void __iomem *regmap; spinlock_t irq_lock; @@ -224,6 +228,7 @@ enum rsxx_pci_regmap { PERF_RD512_HI = 0xac, PERF_WR512_LO = 0xb0, PERF_WR512_HI = 0xb4, + PCI_RECONFIG = 0xb8, }; enum rsxx_intr { @@ -237,6 +242,8 @@ enum rsxx_intr { CR_INTR_DMA5 = 0x00000080, CR_INTR_DMA6 = 0x00000100, CR_INTR_DMA7 = 0x00000200, + CR_INTR_ALL_C = 0x0000003f, + CR_INTR_ALL_G = 0x000003ff, CR_INTR_DMA_ALL = 0x000003f5, CR_INTR_ALL = 0xffffffff, }; @@ -253,8 +260,14 @@ enum rsxx_pci_reset { DMA_QUEUE_RESET = 0x00000001, }; +enum rsxx_hw_fifo_flush { + RSXX_FLUSH_BUSY = 0x00000002, + RSXX_FLUSH_TIMEOUT = 0x00000004, +}; + enum rsxx_pci_revision { RSXX_DISCARD_SUPPORT = 2, + RSXX_EEH_SUPPORT = 3, }; enum rsxx_creg_cmd { @@ -360,11 +373,17 @@ int rsxx_dma_setup(struct rsxx_cardinfo *card); void rsxx_dma_destroy(struct rsxx_cardinfo *card); int rsxx_dma_init(void); void rsxx_dma_cleanup(void); +void rsxx_dma_queue_reset(struct rsxx_cardinfo *card); +int rsxx_dma_configure(struct rsxx_cardinfo *card); int rsxx_dma_queue_bio(struct rsxx_cardinfo *card, struct bio *bio, atomic_t *n_dmas, rsxx_dma_cb cb, void *cb_data); +int rsxx_hw_buffers_init(struct pci_dev *dev, struct rsxx_dma_ctrl *ctrl); +int rsxx_eeh_save_issued_dmas(struct rsxx_cardinfo *card); +void rsxx_eeh_cancel_dmas(struct rsxx_cardinfo *card); +int rsxx_eeh_remap_dmas(struct rsxx_cardinfo *card); /***** cregs.c *****/ int rsxx_creg_write(struct rsxx_cardinfo *card, u32 addr, @@ -389,10 +408,11 @@ int rsxx_creg_setup(struct rsxx_cardinfo *card); void rsxx_creg_destroy(struct rsxx_cardinfo *card); int rsxx_creg_init(void); void rsxx_creg_cleanup(void); - int rsxx_reg_access(struct rsxx_cardinfo *card, struct rsxx_reg_access __user *ucmd, int read); +void rsxx_eeh_save_issued_creg(struct rsxx_cardinfo *card); +void rsxx_kick_creg_queue(struct rsxx_cardinfo *card); diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index de1f319f7bd7..dd5b2fed97e9 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -164,7 +164,7 @@ static void make_response(struct xen_blkif *blkif, u64 id, #define foreach_grant_safe(pos, n, rbtree, node) \ for ((pos) = container_of(rb_first((rbtree)), typeof(*(pos)), node), \ - (n) = rb_next(&(pos)->node); \ + (n) = (&(pos)->node != NULL) ? rb_next(&(pos)->node) : NULL; \ &(pos)->node != NULL; \ (pos) = container_of(n, typeof(*(pos)), node), \ (n) = (&(pos)->node != NULL) ? rb_next(&(pos)->node) : NULL) @@ -381,8 +381,8 @@ irqreturn_t xen_blkif_be_int(int irq, void *dev_id) static void print_stats(struct xen_blkif *blkif) { - pr_info("xen-blkback (%s): oo %3d | rd %4d | wr %4d | f %4d" - " | ds %4d\n", + pr_info("xen-blkback (%s): oo %3llu | rd %4llu | wr %4llu | f %4llu" + " | ds %4llu\n", current->comm, blkif->st_oo_req, blkif->st_rd_req, blkif->st_wr_req, blkif->st_f_req, blkif->st_ds_req); @@ -442,7 +442,7 @@ int xen_blkif_schedule(void *arg) } struct seg_buf { - unsigned long buf; + unsigned int offset; unsigned int nsec; }; /* @@ -621,30 +621,21 @@ static int xen_blkbk_map(struct blkif_request *req, * If this is a new persistent grant * save the handler */ - persistent_gnts[i]->handle = map[j].handle; - persistent_gnts[i]->dev_bus_addr = - map[j++].dev_bus_addr; + persistent_gnts[i]->handle = map[j++].handle; } pending_handle(pending_req, i) = persistent_gnts[i]->handle; if (ret) continue; - - seg[i].buf = persistent_gnts[i]->dev_bus_addr | - (req->u.rw.seg[i].first_sect << 9); } else { - pending_handle(pending_req, i) = map[j].handle; + pending_handle(pending_req, i) = map[j++].handle; bitmap_set(pending_req->unmap_seg, i, 1); - if (ret) { - j++; + if (ret) continue; - } - - seg[i].buf = map[j++].dev_bus_addr | - (req->u.rw.seg[i].first_sect << 9); } + seg[i].offset = (req->u.rw.seg[i].first_sect << 9); } return ret; } @@ -679,6 +670,16 @@ static int dispatch_discard_io(struct xen_blkif *blkif, return err; } +static int dispatch_other_io(struct xen_blkif *blkif, + struct blkif_request *req, + struct pending_req *pending_req) +{ + free_req(pending_req); + make_response(blkif, req->u.other.id, req->operation, + BLKIF_RSP_EOPNOTSUPP); + return -EIO; +} + static void xen_blk_drain_io(struct xen_blkif *blkif) { atomic_set(&blkif->drain, 1); @@ -800,17 +801,30 @@ __do_block_io_op(struct xen_blkif *blkif) /* Apply all sanity checks to /private copy/ of request. */ barrier(); - if (unlikely(req.operation == BLKIF_OP_DISCARD)) { + + switch (req.operation) { + case BLKIF_OP_READ: + case BLKIF_OP_WRITE: + case BLKIF_OP_WRITE_BARRIER: + case BLKIF_OP_FLUSH_DISKCACHE: + if (dispatch_rw_block_io(blkif, &req, pending_req)) + goto done; + break; + case BLKIF_OP_DISCARD: free_req(pending_req); if (dispatch_discard_io(blkif, &req)) - break; - } else if (dispatch_rw_block_io(blkif, &req, pending_req)) + goto done; break; + default: + if (dispatch_other_io(blkif, &req, pending_req)) + goto done; + break; + } /* Yield point for this unbounded loop. */ cond_resched(); } - +done: return more_to_do; } @@ -904,7 +918,8 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, pr_debug(DRV_PFX "access denied: %s of [%llu,%llu] on dev=%04x\n", operation == READ ? "read" : "write", preq.sector_number, - preq.sector_number + preq.nr_sects, preq.dev); + preq.sector_number + preq.nr_sects, + blkif->vbd.pdevice); goto fail_response; } @@ -947,7 +962,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, (bio_add_page(bio, pages[i], seg[i].nsec << 9, - seg[i].buf & ~PAGE_MASK) == 0)) { + seg[i].offset) == 0)) { bio = bio_alloc(GFP_KERNEL, nseg-i); if (unlikely(bio == NULL)) @@ -977,13 +992,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, bio->bi_end_io = end_block_io_op; } - /* - * We set it one so that the last submit_bio does not have to call - * atomic_inc. - */ atomic_set(&pending_req->pendcnt, nbio); - - /* Get a reference count for the disk queue and start sending I/O */ blk_start_plug(&plug); for (i = 0; i < nbio; i++) @@ -1011,6 +1020,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, fail_put_bio: for (i = 0; i < nbio; i++) bio_put(biolist[i]); + atomic_set(&pending_req->pendcnt, 1); __end_block_io_op(pending_req, -EINVAL); msleep(1); /* back off a bit */ return -EIO; diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index 6072390c7f57..60103e2517ba 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -77,11 +77,18 @@ struct blkif_x86_32_request_discard { uint64_t nr_sectors; } __attribute__((__packed__)); +struct blkif_x86_32_request_other { + uint8_t _pad1; + blkif_vdev_t _pad2; + uint64_t id; /* private guest value, echoed in resp */ +} __attribute__((__packed__)); + struct blkif_x86_32_request { uint8_t operation; /* BLKIF_OP_??? */ union { struct blkif_x86_32_request_rw rw; struct blkif_x86_32_request_discard discard; + struct blkif_x86_32_request_other other; } u; } __attribute__((__packed__)); @@ -113,11 +120,19 @@ struct blkif_x86_64_request_discard { uint64_t nr_sectors; } __attribute__((__packed__)); +struct blkif_x86_64_request_other { + uint8_t _pad1; + blkif_vdev_t _pad2; + uint32_t _pad3; /* offsetof(blkif_..,u.discard.id)==8 */ + uint64_t id; /* private guest value, echoed in resp */ +} __attribute__((__packed__)); + struct blkif_x86_64_request { uint8_t operation; /* BLKIF_OP_??? */ union { struct blkif_x86_64_request_rw rw; struct blkif_x86_64_request_discard discard; + struct blkif_x86_64_request_other other; } u; } __attribute__((__packed__)); @@ -172,7 +187,6 @@ struct persistent_gnt { struct page *page; grant_ref_t gnt; grant_handle_t handle; - uint64_t dev_bus_addr; struct rb_node node; }; @@ -208,13 +222,13 @@ struct xen_blkif { /* statistics */ unsigned long st_print; - int st_rd_req; - int st_wr_req; - int st_oo_req; - int st_f_req; - int st_ds_req; - int st_rd_sect; - int st_wr_sect; + unsigned long long st_rd_req; + unsigned long long st_wr_req; + unsigned long long st_oo_req; + unsigned long long st_f_req; + unsigned long long st_ds_req; + unsigned long long st_rd_sect; + unsigned long long st_wr_sect; wait_queue_head_t waiting_to_free; }; @@ -278,6 +292,11 @@ static inline void blkif_get_x86_32_req(struct blkif_request *dst, dst->u.discard.nr_sectors = src->u.discard.nr_sectors; break; default: + /* + * Don't know how to translate this op. Only get the + * ID so failure can be reported to the frontend. + */ + dst->u.other.id = src->u.other.id; break; } } @@ -309,6 +328,11 @@ static inline void blkif_get_x86_64_req(struct blkif_request *dst, dst->u.discard.nr_sectors = src->u.discard.nr_sectors; break; default: + /* + * Don't know how to translate this op. Only get the + * ID so failure can be reported to the frontend. + */ + dst->u.other.id = src->u.other.id; break; } } diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 5e237f630c47..8bfd1bcf95ec 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -230,13 +230,13 @@ int __init xen_blkif_interface_init(void) } \ static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) -VBD_SHOW(oo_req, "%d\n", be->blkif->st_oo_req); -VBD_SHOW(rd_req, "%d\n", be->blkif->st_rd_req); -VBD_SHOW(wr_req, "%d\n", be->blkif->st_wr_req); -VBD_SHOW(f_req, "%d\n", be->blkif->st_f_req); -VBD_SHOW(ds_req, "%d\n", be->blkif->st_ds_req); -VBD_SHOW(rd_sect, "%d\n", be->blkif->st_rd_sect); -VBD_SHOW(wr_sect, "%d\n", be->blkif->st_wr_sect); +VBD_SHOW(oo_req, "%llu\n", be->blkif->st_oo_req); +VBD_SHOW(rd_req, "%llu\n", be->blkif->st_rd_req); +VBD_SHOW(wr_req, "%llu\n", be->blkif->st_wr_req); +VBD_SHOW(f_req, "%llu\n", be->blkif->st_f_req); +VBD_SHOW(ds_req, "%llu\n", be->blkif->st_ds_req); +VBD_SHOW(rd_sect, "%llu\n", be->blkif->st_rd_sect); +VBD_SHOW(wr_sect, "%llu\n", be->blkif->st_wr_sect); static struct attribute *xen_vbdstat_attrs[] = { &dev_attr_oo_req.attr, diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index c3dae2e0f290..a894f88762d8 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -44,7 +44,7 @@ #include <linux/mutex.h> #include <linux/scatterlist.h> #include <linux/bitmap.h> -#include <linux/llist.h> +#include <linux/list.h> #include <xen/xen.h> #include <xen/xenbus.h> @@ -68,13 +68,12 @@ enum blkif_state { struct grant { grant_ref_t gref; unsigned long pfn; - struct llist_node node; + struct list_head node; }; struct blk_shadow { struct blkif_request req; struct request *request; - unsigned long frame[BLKIF_MAX_SEGMENTS_PER_REQUEST]; struct grant *grants_used[BLKIF_MAX_SEGMENTS_PER_REQUEST]; }; @@ -105,7 +104,7 @@ struct blkfront_info struct work_struct work; struct gnttab_free_callback callback; struct blk_shadow shadow[BLK_RING_SIZE]; - struct llist_head persistent_gnts; + struct list_head persistent_gnts; unsigned int persistent_gnts_c; unsigned long shadow_free; unsigned int feature_flush; @@ -165,6 +164,69 @@ static int add_id_to_freelist(struct blkfront_info *info, return 0; } +static int fill_grant_buffer(struct blkfront_info *info, int num) +{ + struct page *granted_page; + struct grant *gnt_list_entry, *n; + int i = 0; + + while(i < num) { + gnt_list_entry = kzalloc(sizeof(struct grant), GFP_NOIO); + if (!gnt_list_entry) + goto out_of_memory; + + granted_page = alloc_page(GFP_NOIO); + if (!granted_page) { + kfree(gnt_list_entry); + goto out_of_memory; + } + + gnt_list_entry->pfn = page_to_pfn(granted_page); + gnt_list_entry->gref = GRANT_INVALID_REF; + list_add(&gnt_list_entry->node, &info->persistent_gnts); + i++; + } + + return 0; + +out_of_memory: + list_for_each_entry_safe(gnt_list_entry, n, + &info->persistent_gnts, node) { + list_del(&gnt_list_entry->node); + __free_page(pfn_to_page(gnt_list_entry->pfn)); + kfree(gnt_list_entry); + i--; + } + BUG_ON(i != 0); + return -ENOMEM; +} + +static struct grant *get_grant(grant_ref_t *gref_head, + struct blkfront_info *info) +{ + struct grant *gnt_list_entry; + unsigned long buffer_mfn; + + BUG_ON(list_empty(&info->persistent_gnts)); + gnt_list_entry = list_first_entry(&info->persistent_gnts, struct grant, + node); + list_del(&gnt_list_entry->node); + + if (gnt_list_entry->gref != GRANT_INVALID_REF) { + info->persistent_gnts_c--; + return gnt_list_entry; + } + + /* Assign a gref to this page */ + gnt_list_entry->gref = gnttab_claim_grant_reference(gref_head); + BUG_ON(gnt_list_entry->gref == -ENOSPC); + buffer_mfn = pfn_to_mfn(gnt_list_entry->pfn); + gnttab_grant_foreign_access_ref(gnt_list_entry->gref, + info->xbdev->otherend_id, + buffer_mfn, 0); + return gnt_list_entry; +} + static const char *op_name(int op) { static const char *const names[] = { @@ -293,7 +355,6 @@ static int blkif_ioctl(struct block_device *bdev, fmode_t mode, static int blkif_queue_request(struct request *req) { struct blkfront_info *info = req->rq_disk->private_data; - unsigned long buffer_mfn; struct blkif_request *ring_req; unsigned long id; unsigned int fsect, lsect; @@ -306,7 +367,6 @@ static int blkif_queue_request(struct request *req) */ bool new_persistent_gnts; grant_ref_t gref_head; - struct page *granted_page; struct grant *gnt_list_entry = NULL; struct scatterlist *sg; @@ -370,41 +430,8 @@ static int blkif_queue_request(struct request *req) fsect = sg->offset >> 9; lsect = fsect + (sg->length >> 9) - 1; - if (info->persistent_gnts_c) { - BUG_ON(llist_empty(&info->persistent_gnts)); - gnt_list_entry = llist_entry( - llist_del_first(&info->persistent_gnts), - struct grant, node); - - ref = gnt_list_entry->gref; - buffer_mfn = pfn_to_mfn(gnt_list_entry->pfn); - info->persistent_gnts_c--; - } else { - ref = gnttab_claim_grant_reference(&gref_head); - BUG_ON(ref == -ENOSPC); - - gnt_list_entry = - kmalloc(sizeof(struct grant), - GFP_ATOMIC); - if (!gnt_list_entry) - return -ENOMEM; - - granted_page = alloc_page(GFP_ATOMIC); - if (!granted_page) { - kfree(gnt_list_entry); - return -ENOMEM; - } - - gnt_list_entry->pfn = - page_to_pfn(granted_page); - gnt_list_entry->gref = ref; - - buffer_mfn = pfn_to_mfn(page_to_pfn( - granted_page)); - gnttab_grant_foreign_access_ref(ref, - info->xbdev->otherend_id, - buffer_mfn, 0); - } + gnt_list_entry = get_grant(&gref_head, info); + ref = gnt_list_entry->gref; info->shadow[id].grants_used[i] = gnt_list_entry; @@ -435,7 +462,6 @@ static int blkif_queue_request(struct request *req) kunmap_atomic(shared_data); } - info->shadow[id].frame[i] = mfn_to_pfn(buffer_mfn); ring_req->u.rw.seg[i] = (struct blkif_request_segment) { .gref = ref, @@ -790,9 +816,8 @@ static void blkif_restart_queue(struct work_struct *work) static void blkif_free(struct blkfront_info *info, int suspend) { - struct llist_node *all_gnts; - struct grant *persistent_gnt, *tmp; - struct llist_node *n; + struct grant *persistent_gnt; + struct grant *n; /* Prevent new requests being issued until we fix things up. */ spin_lock_irq(&info->io_lock); @@ -803,22 +828,20 @@ static void blkif_free(struct blkfront_info *info, int suspend) blk_stop_queue(info->rq); /* Remove all persistent grants */ - if (info->persistent_gnts_c) { - all_gnts = llist_del_all(&info->persistent_gnts); - persistent_gnt = llist_entry(all_gnts, typeof(*(persistent_gnt)), node); - while (persistent_gnt) { - gnttab_end_foreign_access(persistent_gnt->gref, 0, 0UL); + if (!list_empty(&info->persistent_gnts)) { + list_for_each_entry_safe(persistent_gnt, n, + &info->persistent_gnts, node) { + list_del(&persistent_gnt->node); + if (persistent_gnt->gref != GRANT_INVALID_REF) { + gnttab_end_foreign_access(persistent_gnt->gref, + 0, 0UL); + info->persistent_gnts_c--; + } __free_page(pfn_to_page(persistent_gnt->pfn)); - tmp = persistent_gnt; - n = persistent_gnt->node.next; - if (n) - persistent_gnt = llist_entry(n, typeof(*(persistent_gnt)), node); - else - persistent_gnt = NULL; - kfree(tmp); + kfree(persistent_gnt); } - info->persistent_gnts_c = 0; } + BUG_ON(info->persistent_gnts_c != 0); /* No more gnttab callback work. */ gnttab_cancel_free_callback(&info->callback); @@ -875,7 +898,7 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info, } /* Add the persistent grant into the list of free grants */ for (i = 0; i < s->req.u.rw.nr_segments; i++) { - llist_add(&s->grants_used[i]->node, &info->persistent_gnts); + list_add(&s->grants_used[i]->node, &info->persistent_gnts); info->persistent_gnts_c++; } } @@ -1013,6 +1036,12 @@ static int setup_blkring(struct xenbus_device *dev, sg_init_table(info->sg, BLKIF_MAX_SEGMENTS_PER_REQUEST); + /* Allocate memory for grants */ + err = fill_grant_buffer(info, BLK_RING_SIZE * + BLKIF_MAX_SEGMENTS_PER_REQUEST); + if (err) + goto fail; + err = xenbus_grant_ring(dev, virt_to_mfn(info->ring.sring)); if (err < 0) { free_page((unsigned long)sring); @@ -1171,7 +1200,7 @@ static int blkfront_probe(struct xenbus_device *dev, spin_lock_init(&info->io_lock); info->xbdev = dev; info->vdevice = vdevice; - init_llist_head(&info->persistent_gnts); + INIT_LIST_HEAD(&info->persistent_gnts); info->persistent_gnts_c = 0; info->connected = BLKIF_STATE_DISCONNECTED; INIT_WORK(&info->work, blkif_restart_queue); @@ -1203,11 +1232,10 @@ static int blkif_recover(struct blkfront_info *info) int j; /* Stage 1: Make a safe copy of the shadow state. */ - copy = kmalloc(sizeof(info->shadow), + copy = kmemdup(info->shadow, sizeof(info->shadow), GFP_NOIO | __GFP_REPEAT | __GFP_HIGH); if (!copy) return -ENOMEM; - memcpy(copy, info->shadow, sizeof(info->shadow)); /* Stage 2: Set up free list. */ memset(&info->shadow, 0, sizeof(info->shadow)); @@ -1236,7 +1264,7 @@ static int blkif_recover(struct blkfront_info *info) gnttab_grant_foreign_access_ref( req->u.rw.seg[j].gref, info->xbdev->otherend_id, - pfn_to_mfn(info->shadow[req->u.rw.id].frame[j]), + pfn_to_mfn(copy[i].grants_used[j]->pfn), 0); } info->shadow[req->u.rw.id].req = *req; diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index b282af181b44..6aab00ef4379 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -73,9 +73,11 @@ static struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x03F0, 0x311D) }, /* Atheros AR3012 with sflash firmware*/ + { USB_DEVICE(0x0CF3, 0x0036) }, { USB_DEVICE(0x0CF3, 0x3004) }, { USB_DEVICE(0x0CF3, 0x3008) }, { USB_DEVICE(0x0CF3, 0x311D) }, + { USB_DEVICE(0x0CF3, 0x817a) }, { USB_DEVICE(0x13d3, 0x3375) }, { USB_DEVICE(0x04CA, 0x3004) }, { USB_DEVICE(0x04CA, 0x3005) }, @@ -107,9 +109,11 @@ MODULE_DEVICE_TABLE(usb, ath3k_table); static struct usb_device_id ath3k_blist_tbl[] = { /* Atheros AR3012 with sflash firmware*/ + { USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index e547851870e7..2cc5f774a29c 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -131,9 +131,11 @@ static struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, /* Atheros 3012 with sflash firmware */ + { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index 937bc286591f..57a8774f0b4e 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -730,7 +730,6 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) policy->shared_type == CPUFREQ_SHARED_TYPE_ANY) { cpumask_copy(policy->cpus, perf->shared_cpu_map); } - cpumask_copy(policy->related_cpus, perf->shared_cpu_map); #ifdef CONFIG_SMP dmi_check_system(sw_any_bug_dmi_table); @@ -742,7 +741,6 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) if (check_amd_hwpstate_cpu(cpu) && !acpi_pstate_strict) { cpumask_clear(policy->cpus); cpumask_set_cpu(cpu, policy->cpus); - cpumask_copy(policy->related_cpus, cpu_sibling_mask(cpu)); policy->shared_type = CPUFREQ_SHARED_TYPE_HW; pr_info_once(PFX "overriding BIOS provided _PSD data\n"); } diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c index 2fd779eb1ed1..bfd6273fd873 100644 --- a/drivers/cpufreq/cpufreq_stats.c +++ b/drivers/cpufreq/cpufreq_stats.c @@ -180,15 +180,19 @@ static void cpufreq_stats_free_sysfs(unsigned int cpu) { struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); - if (!cpufreq_frequency_get_table(cpu)) + if (!policy) return; - if (policy && !policy_is_shared(policy)) { + if (!cpufreq_frequency_get_table(cpu)) + goto put_ref; + + if (!policy_is_shared(policy)) { pr_debug("%s: Free sysfs stat\n", __func__); sysfs_remove_group(&policy->kobj, &stats_attr_group); } - if (policy) - cpufreq_cpu_put(policy); + +put_ref: + cpufreq_cpu_put(policy); } static int cpufreq_stats_create_table(struct cpufreq_policy *policy, diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index f6dd1e761129..ad72922919ed 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -358,14 +358,14 @@ static void intel_pstate_sysfs_expose_params(void) static int intel_pstate_min_pstate(void) { u64 value; - rdmsrl(0xCE, value); + rdmsrl(MSR_PLATFORM_INFO, value); return (value >> 40) & 0xFF; } static int intel_pstate_max_pstate(void) { u64 value; - rdmsrl(0xCE, value); + rdmsrl(MSR_PLATFORM_INFO, value); return (value >> 8) & 0xFF; } @@ -373,7 +373,7 @@ static int intel_pstate_turbo_pstate(void) { u64 value; int nont, ret; - rdmsrl(0x1AD, value); + rdmsrl(MSR_NHM_TURBO_RATIO_LIMIT, value); nont = intel_pstate_max_pstate(); ret = ((value) & 255); if (ret <= nont) @@ -454,7 +454,7 @@ static inline void intel_pstate_calc_busy(struct cpudata *cpu, sample->idletime_us * 100, sample->duration_us); core_pct = div64_u64(sample->aperf * 100, sample->mperf); - sample->freq = cpu->pstate.turbo_pstate * core_pct * 1000; + sample->freq = cpu->pstate.max_pstate * core_pct * 1000; sample->core_pct_busy = div_s64((sample->pstate_pct_busy * core_pct), 100); @@ -752,6 +752,29 @@ static struct cpufreq_driver intel_pstate_driver = { static int __initdata no_load; +static int intel_pstate_msrs_not_valid(void) +{ + /* Check that all the msr's we are using are valid. */ + u64 aperf, mperf, tmp; + + rdmsrl(MSR_IA32_APERF, aperf); + rdmsrl(MSR_IA32_MPERF, mperf); + + if (!intel_pstate_min_pstate() || + !intel_pstate_max_pstate() || + !intel_pstate_turbo_pstate()) + return -ENODEV; + + rdmsrl(MSR_IA32_APERF, tmp); + if (!(tmp - aperf)) + return -ENODEV; + + rdmsrl(MSR_IA32_MPERF, tmp); + if (!(tmp - mperf)) + return -ENODEV; + + return 0; +} static int __init intel_pstate_init(void) { int cpu, rc = 0; @@ -764,6 +787,9 @@ static int __init intel_pstate_init(void) if (!id) return -ENODEV; + if (intel_pstate_msrs_not_valid()) + return -ENODEV; + pr_info("Intel P-state driver initializing.\n"); all_cpu_data = vmalloc(sizeof(void *) * num_possible_cpus()); diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c index b2a0a0726a54..cf268b14ae9a 100644 --- a/drivers/crypto/caam/caamalg.c +++ b/drivers/crypto/caam/caamalg.c @@ -1650,11 +1650,7 @@ struct caam_alg_template { }; static struct caam_alg_template driver_algs[] = { - /* - * single-pass ipsec_esp descriptor - * authencesn(*,*) is also registered, although not present - * explicitly here. - */ + /* single-pass ipsec_esp descriptor */ { .name = "authenc(hmac(md5),cbc(aes))", .driver_name = "authenc-hmac-md5-cbc-aes-caam", @@ -2217,9 +2213,7 @@ static int __init caam_algapi_init(void) for (i = 0; i < ARRAY_SIZE(driver_algs); i++) { /* TODO: check if h/w supports alg */ struct caam_crypto_alg *t_alg; - bool done = false; -authencesn: t_alg = caam_alg_alloc(ctrldev, &driver_algs[i]); if (IS_ERR(t_alg)) { err = PTR_ERR(t_alg); @@ -2233,25 +2227,8 @@ authencesn: dev_warn(ctrldev, "%s alg registration failed\n", t_alg->crypto_alg.cra_driver_name); kfree(t_alg); - } else { + } else list_add_tail(&t_alg->entry, &priv->alg_list); - if (driver_algs[i].type == CRYPTO_ALG_TYPE_AEAD && - !memcmp(driver_algs[i].name, "authenc", 7) && - !done) { - char *name; - - name = driver_algs[i].name; - memmove(name + 10, name + 7, strlen(name) - 7); - memcpy(name + 7, "esn", 3); - - name = driver_algs[i].driver_name; - memmove(name + 10, name + 7, strlen(name) - 7); - memcpy(name + 7, "esn", 3); - - done = true; - goto authencesn; - } - } } if (!list_empty(&priv->alg_list)) dev_info(ctrldev, "%s algorithms registered in /proc/crypto\n", diff --git a/drivers/crypto/caam/compat.h b/drivers/crypto/caam/compat.h index cf15e7813801..762aeff626ac 100644 --- a/drivers/crypto/caam/compat.h +++ b/drivers/crypto/caam/compat.h @@ -23,7 +23,6 @@ #include <linux/types.h> #include <linux/debugfs.h> #include <linux/circ_buf.h> -#include <linux/string.h> #include <net/xfrm.h> #include <crypto/algapi.h> diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 09b184adf31b..5b2b5e61e4f9 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -38,7 +38,6 @@ #include <linux/spinlock.h> #include <linux/rtnetlink.h> #include <linux/slab.h> -#include <linux/string.h> #include <crypto/algapi.h> #include <crypto/aes.h> @@ -1974,11 +1973,7 @@ struct talitos_alg_template { }; static struct talitos_alg_template driver_algs[] = { - /* - * AEAD algorithms. These use a single-pass ipsec_esp descriptor. - * authencesn(*,*) is also registered, although not present - * explicitly here. - */ + /* AEAD algorithms. These use a single-pass ipsec_esp descriptor */ { .type = CRYPTO_ALG_TYPE_AEAD, .alg.crypto = { .cra_name = "authenc(hmac(sha1),cbc(aes))", @@ -2820,9 +2815,7 @@ static int talitos_probe(struct platform_device *ofdev) if (hw_supports(dev, driver_algs[i].desc_hdr_template)) { struct talitos_crypto_alg *t_alg; char *name = NULL; - bool authenc = false; -authencesn: t_alg = talitos_alg_alloc(dev, &driver_algs[i]); if (IS_ERR(t_alg)) { err = PTR_ERR(t_alg); @@ -2837,8 +2830,6 @@ authencesn: err = crypto_register_alg( &t_alg->algt.alg.crypto); name = t_alg->algt.alg.crypto.cra_driver_name; - authenc = authenc ? !authenc : - !(bool)memcmp(name, "authenc", 7); break; case CRYPTO_ALG_TYPE_AHASH: err = crypto_register_ahash( @@ -2851,25 +2842,8 @@ authencesn: dev_err(dev, "%s alg registration failed\n", name); kfree(t_alg); - } else { + } else list_add_tail(&t_alg->entry, &priv->alg_list); - if (authenc) { - struct crypto_alg *alg = - &driver_algs[i].alg.crypto; - - name = alg->cra_name; - memmove(name + 10, name + 7, - strlen(name) - 7); - memcpy(name + 7, "esn", 3); - - name = alg->cra_driver_name; - memmove(name + 10, name + 7, - strlen(name) - 7); - memcpy(name + 7, "esn", 3); - - goto authencesn; - } - } } } if (!list_empty(&priv->alg_list)) diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index c599558faeda..43a5329d4483 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -1001,6 +1001,13 @@ static inline void convert_burst(u32 *maxburst) *maxburst = 0; } +static inline void convert_slave_id(struct dw_dma_chan *dwc) +{ + struct dw_dma *dw = to_dw_dma(dwc->chan.device); + + dwc->dma_sconfig.slave_id -= dw->request_line_base; +} + static int set_runtime_config(struct dma_chan *chan, struct dma_slave_config *sconfig) { @@ -1015,6 +1022,7 @@ set_runtime_config(struct dma_chan *chan, struct dma_slave_config *sconfig) convert_burst(&dwc->dma_sconfig.src_maxburst); convert_burst(&dwc->dma_sconfig.dst_maxburst); + convert_slave_id(dwc); return 0; } @@ -1276,9 +1284,9 @@ static struct dma_chan *dw_dma_xlate(struct of_phandle_args *dma_spec, if (dma_spec->args_count != 3) return NULL; - fargs.req = be32_to_cpup(dma_spec->args+0); - fargs.src = be32_to_cpup(dma_spec->args+1); - fargs.dst = be32_to_cpup(dma_spec->args+2); + fargs.req = dma_spec->args[0]; + fargs.src = dma_spec->args[1]; + fargs.dst = dma_spec->args[2]; if (WARN_ON(fargs.req >= DW_DMA_MAX_NR_REQUESTS || fargs.src >= dw->nr_masters || @@ -1628,6 +1636,7 @@ dw_dma_parse_dt(struct platform_device *pdev) static int dw_probe(struct platform_device *pdev) { + const struct platform_device_id *match; struct dw_dma_platform_data *pdata; struct resource *io; struct dw_dma *dw; @@ -1711,6 +1720,11 @@ static int dw_probe(struct platform_device *pdev) memcpy(dw->data_width, pdata->data_width, 4); } + /* Get the base request line if set */ + match = platform_get_device_id(pdev); + if (match) + dw->request_line_base = (unsigned int)match->driver_data; + /* Calculate all channel mask before DMA setup */ dw->all_chan_mask = (1 << nr_channels) - 1; @@ -1906,7 +1920,8 @@ MODULE_DEVICE_TABLE(of, dw_dma_id_table); #endif static const struct platform_device_id dw_dma_ids[] = { - { "INTL9C60", 0 }, + /* Name, Request Line Base */ + { "INTL9C60", (kernel_ulong_t)16 }, { } }; diff --git a/drivers/dma/dw_dmac_regs.h b/drivers/dma/dw_dmac_regs.h index cf0ce5c77d60..4d02c3669b75 100644 --- a/drivers/dma/dw_dmac_regs.h +++ b/drivers/dma/dw_dmac_regs.h @@ -247,6 +247,7 @@ struct dw_dma { /* hardware configuration */ unsigned char nr_masters; unsigned char data_width[4]; + unsigned int request_line_base; struct dw_dma_chan chan[0]; }; diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index b70e3815c459..8f3c947b0029 100644 --- a/drivers/extcon/extcon-max77693.c +++ b/drivers/extcon/extcon-max77693.c @@ -32,6 +32,38 @@ #define DEV_NAME "max77693-muic" #define DELAY_MS_DEFAULT 20000 /* unit: millisecond */ +/* + * Default value of MAX77693 register to bring up MUIC device. + * If user don't set some initial value for MUIC device through platform data, + * extcon-max77693 driver use 'default_init_data' to bring up base operation + * of MAX77693 MUIC device. + */ +struct max77693_reg_data default_init_data[] = { + { + /* STATUS2 - [3]ChgDetRun */ + .addr = MAX77693_MUIC_REG_STATUS2, + .data = STATUS2_CHGDETRUN_MASK, + }, { + /* INTMASK1 - Unmask [3]ADC1KM,[0]ADCM */ + .addr = MAX77693_MUIC_REG_INTMASK1, + .data = INTMASK1_ADC1K_MASK + | INTMASK1_ADC_MASK, + }, { + /* INTMASK2 - Unmask [0]ChgTypM */ + .addr = MAX77693_MUIC_REG_INTMASK2, + .data = INTMASK2_CHGTYP_MASK, + }, { + /* INTMASK3 - Mask all of interrupts */ + .addr = MAX77693_MUIC_REG_INTMASK3, + .data = 0x0, + }, { + /* CDETCTRL2 */ + .addr = MAX77693_MUIC_REG_CDETCTRL2, + .data = CDETCTRL2_VIDRMEN_MASK + | CDETCTRL2_DXOVPEN_MASK, + }, +}; + enum max77693_muic_adc_debounce_time { ADC_DEBOUNCE_TIME_5MS = 0, ADC_DEBOUNCE_TIME_10MS, @@ -1045,8 +1077,9 @@ static int max77693_muic_probe(struct platform_device *pdev) { struct max77693_dev *max77693 = dev_get_drvdata(pdev->dev.parent); struct max77693_platform_data *pdata = dev_get_platdata(max77693->dev); - struct max77693_muic_platform_data *muic_pdata = pdata->muic_data; struct max77693_muic_info *info; + struct max77693_reg_data *init_data; + int num_init_data; int delay_jiffies; int ret; int i; @@ -1145,15 +1178,25 @@ static int max77693_muic_probe(struct platform_device *pdev) goto err_irq; } - /* Initialize MUIC register by using platform data */ - for (i = 0 ; i < muic_pdata->num_init_data ; i++) { - enum max77693_irq_source irq_src = MAX77693_IRQ_GROUP_NR; + + /* Initialize MUIC register by using platform data or default data */ + if (pdata->muic_data) { + init_data = pdata->muic_data->init_data; + num_init_data = pdata->muic_data->num_init_data; + } else { + init_data = default_init_data; + num_init_data = ARRAY_SIZE(default_init_data); + } + + for (i = 0 ; i < num_init_data ; i++) { + enum max77693_irq_source irq_src + = MAX77693_IRQ_GROUP_NR; max77693_write_reg(info->max77693->regmap_muic, - muic_pdata->init_data[i].addr, - muic_pdata->init_data[i].data); + init_data[i].addr, + init_data[i].data); - switch (muic_pdata->init_data[i].addr) { + switch (init_data[i].addr) { case MAX77693_MUIC_REG_INTMASK1: irq_src = MUIC_INT1; break; @@ -1167,22 +1210,40 @@ static int max77693_muic_probe(struct platform_device *pdev) if (irq_src < MAX77693_IRQ_GROUP_NR) info->max77693->irq_masks_cur[irq_src] - = muic_pdata->init_data[i].data; + = init_data[i].data; } - /* - * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB - * h/w path of COMP2/COMN1 on CONTROL1 register. - */ - if (muic_pdata->path_uart) - info->path_uart = muic_pdata->path_uart; - else - info->path_uart = CONTROL1_SW_UART; + if (pdata->muic_data) { + struct max77693_muic_platform_data *muic_pdata = pdata->muic_data; - if (muic_pdata->path_usb) - info->path_usb = muic_pdata->path_usb; - else + /* + * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB + * h/w path of COMP2/COMN1 on CONTROL1 register. + */ + if (muic_pdata->path_uart) + info->path_uart = muic_pdata->path_uart; + else + info->path_uart = CONTROL1_SW_UART; + + if (muic_pdata->path_usb) + info->path_usb = muic_pdata->path_usb; + else + info->path_usb = CONTROL1_SW_USB; + + /* + * Default delay time for detecting cable state + * after certain time. + */ + if (muic_pdata->detcable_delay_ms) + delay_jiffies = + msecs_to_jiffies(muic_pdata->detcable_delay_ms); + else + delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); + } else { info->path_usb = CONTROL1_SW_USB; + info->path_uart = CONTROL1_SW_UART; + delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); + } /* Set initial path for UART */ max77693_muic_set_path(info, info->path_uart, true); @@ -1208,10 +1269,6 @@ static int max77693_muic_probe(struct platform_device *pdev) * driver should notify cable state to upper layer. */ INIT_DELAYED_WORK(&info->wq_detcable, max77693_muic_detect_cable_wq); - if (muic_pdata->detcable_delay_ms) - delay_jiffies = msecs_to_jiffies(muic_pdata->detcable_delay_ms); - else - delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); schedule_delayed_work(&info->wq_detcable, delay_jiffies); return ret; diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c index e636d950ad6c..69641bcae325 100644 --- a/drivers/extcon/extcon-max8997.c +++ b/drivers/extcon/extcon-max8997.c @@ -712,29 +712,45 @@ static int max8997_muic_probe(struct platform_device *pdev) goto err_irq; } - /* Initialize registers according to platform data */ if (pdata->muic_pdata) { - struct max8997_muic_platform_data *mdata = info->muic_pdata; - - for (i = 0; i < mdata->num_init_data; i++) { - max8997_write_reg(info->muic, mdata->init_data[i].addr, - mdata->init_data[i].data); + struct max8997_muic_platform_data *muic_pdata + = pdata->muic_pdata; + + /* Initialize registers according to platform data */ + for (i = 0; i < muic_pdata->num_init_data; i++) { + max8997_write_reg(info->muic, + muic_pdata->init_data[i].addr, + muic_pdata->init_data[i].data); } - } - /* - * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB - * h/w path of COMP2/COMN1 on CONTROL1 register. - */ - if (pdata->muic_pdata->path_uart) - info->path_uart = pdata->muic_pdata->path_uart; - else - info->path_uart = CONTROL1_SW_UART; + /* + * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB + * h/w path of COMP2/COMN1 on CONTROL1 register. + */ + if (muic_pdata->path_uart) + info->path_uart = muic_pdata->path_uart; + else + info->path_uart = CONTROL1_SW_UART; - if (pdata->muic_pdata->path_usb) - info->path_usb = pdata->muic_pdata->path_usb; - else + if (muic_pdata->path_usb) + info->path_usb = muic_pdata->path_usb; + else + info->path_usb = CONTROL1_SW_USB; + + /* + * Default delay time for detecting cable state + * after certain time. + */ + if (muic_pdata->detcable_delay_ms) + delay_jiffies = + msecs_to_jiffies(muic_pdata->detcable_delay_ms); + else + delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); + } else { + info->path_uart = CONTROL1_SW_UART; info->path_usb = CONTROL1_SW_USB; + delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); + } /* Set initial path for UART */ max8997_muic_set_path(info, info->path_uart, true); @@ -751,10 +767,6 @@ static int max8997_muic_probe(struct platform_device *pdev) * driver should notify cable state to upper layer. */ INIT_DELAYED_WORK(&info->wq_detcable, max8997_muic_detect_cable_wq); - if (pdata->muic_pdata->detcable_delay_ms) - delay_jiffies = msecs_to_jiffies(pdata->muic_pdata->detcable_delay_ms); - else - delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); schedule_delayed_work(&info->wq_detcable, delay_jiffies); return 0; diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index 9b00072a020f..42c759a4d047 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -53,6 +53,24 @@ config EFI_VARS Subsequent efibootmgr releases may be found at: <http://linux.dell.com/efibootmgr> +config EFI_VARS_PSTORE + bool "Register efivars backend for pstore" + depends on EFI_VARS && PSTORE + default y + help + Say Y here to enable use efivars as a backend to pstore. This + will allow writing console messages, crash dumps, or anything + else supported by pstore to EFI variables. + +config EFI_VARS_PSTORE_DEFAULT_DISABLE + bool "Disable using efivars as a pstore backend by default" + depends on EFI_VARS_PSTORE + default n + help + Saying Y here will disable the use of efivars as a storage + backend for pstore by default. This setting can be overridden + using the efivars module's pstore_disable parameter. + config EFI_PCDP bool "Console device selection via EFI PCDP or HCDP table" depends on ACPI && EFI && IA64 diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index fe62aa392239..7acafb80fd4c 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -103,6 +103,11 @@ MODULE_VERSION(EFIVARS_VERSION); */ #define GUID_LEN 36 +static bool efivars_pstore_disable = + IS_ENABLED(CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE); + +module_param_named(pstore_disable, efivars_pstore_disable, bool, 0644); + /* * The maximum size of VariableName + Data = 1024 * Therefore, it's reasonable to save that much @@ -165,6 +170,7 @@ efivar_create_sysfs_entry(struct efivars *efivars, static void efivar_update_sysfs_entries(struct work_struct *); static DECLARE_WORK(efivar_work, efivar_update_sysfs_entries); +static bool efivar_wq_enabled = true; /* Return the number of unicode characters in data */ static unsigned long @@ -1309,9 +1315,7 @@ static const struct inode_operations efivarfs_dir_inode_operations = { .create = efivarfs_create, }; -static struct pstore_info efi_pstore_info; - -#ifdef CONFIG_PSTORE +#ifdef CONFIG_EFI_VARS_PSTORE static int efi_pstore_open(struct pstore_info *psi) { @@ -1441,7 +1445,7 @@ static int efi_pstore_write(enum pstore_type_id type, spin_unlock_irqrestore(&efivars->lock, flags); - if (reason == KMSG_DUMP_OOPS) + if (reason == KMSG_DUMP_OOPS && efivar_wq_enabled) schedule_work(&efivar_work); *id = part; @@ -1514,38 +1518,6 @@ static int efi_pstore_erase(enum pstore_type_id type, u64 id, int count, return 0; } -#else -static int efi_pstore_open(struct pstore_info *psi) -{ - return 0; -} - -static int efi_pstore_close(struct pstore_info *psi) -{ - return 0; -} - -static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type, int *count, - struct timespec *timespec, - char **buf, struct pstore_info *psi) -{ - return -1; -} - -static int efi_pstore_write(enum pstore_type_id type, - enum kmsg_dump_reason reason, u64 *id, - unsigned int part, int count, size_t size, - struct pstore_info *psi) -{ - return 0; -} - -static int efi_pstore_erase(enum pstore_type_id type, u64 id, int count, - struct timespec time, struct pstore_info *psi) -{ - return 0; -} -#endif static struct pstore_info efi_pstore_info = { .owner = THIS_MODULE, @@ -1557,6 +1529,24 @@ static struct pstore_info efi_pstore_info = { .erase = efi_pstore_erase, }; +static void efivar_pstore_register(struct efivars *efivars) +{ + efivars->efi_pstore_info = efi_pstore_info; + efivars->efi_pstore_info.buf = kmalloc(4096, GFP_KERNEL); + if (efivars->efi_pstore_info.buf) { + efivars->efi_pstore_info.bufsize = 1024; + efivars->efi_pstore_info.data = efivars; + spin_lock_init(&efivars->efi_pstore_info.buf_lock); + pstore_register(&efivars->efi_pstore_info); + } +} +#else +static void efivar_pstore_register(struct efivars *efivars) +{ + return; +} +#endif + static ssize_t efivar_create(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t pos, size_t count) @@ -1716,6 +1706,31 @@ static bool variable_is_present(efi_char16_t *variable_name, efi_guid_t *vendor) return found; } +/* + * Returns the size of variable_name, in bytes, including the + * terminating NULL character, or variable_name_size if no NULL + * character is found among the first variable_name_size bytes. + */ +static unsigned long var_name_strnsize(efi_char16_t *variable_name, + unsigned long variable_name_size) +{ + unsigned long len; + efi_char16_t c; + + /* + * The variable name is, by definition, a NULL-terminated + * string, so make absolutely sure that variable_name_size is + * the value we expect it to be. If not, return the real size. + */ + for (len = 2; len <= variable_name_size; len += sizeof(c)) { + c = variable_name[(len / sizeof(c)) - 1]; + if (!c) + break; + } + + return min(len, variable_name_size); +} + static void efivar_update_sysfs_entries(struct work_struct *work) { struct efivars *efivars = &__efivars; @@ -1756,10 +1771,13 @@ static void efivar_update_sysfs_entries(struct work_struct *work) if (!found) { kfree(variable_name); break; - } else + } else { + variable_name_size = var_name_strnsize(variable_name, + variable_name_size); efivar_create_sysfs_entry(efivars, variable_name_size, variable_name, &vendor); + } } } @@ -1958,6 +1976,35 @@ void unregister_efivars(struct efivars *efivars) } EXPORT_SYMBOL_GPL(unregister_efivars); +/* + * Print a warning when duplicate EFI variables are encountered and + * disable the sysfs workqueue since the firmware is buggy. + */ +static void dup_variable_bug(efi_char16_t *s16, efi_guid_t *vendor_guid, + unsigned long len16) +{ + size_t i, len8 = len16 / sizeof(efi_char16_t); + char *s8; + + /* + * Disable the workqueue since the algorithm it uses for + * detecting new variables won't work with this buggy + * implementation of GetNextVariableName(). + */ + efivar_wq_enabled = false; + + s8 = kzalloc(len8, GFP_KERNEL); + if (!s8) + return; + + for (i = 0; i < len8; i++) + s8[i] = s16[i]; + + printk(KERN_WARNING "efivars: duplicate variable: %s-%pUl\n", + s8, vendor_guid); + kfree(s8); +} + int register_efivars(struct efivars *efivars, const struct efivar_operations *ops, struct kobject *parent_kobj) @@ -2006,6 +2053,24 @@ int register_efivars(struct efivars *efivars, &vendor_guid); switch (status) { case EFI_SUCCESS: + variable_name_size = var_name_strnsize(variable_name, + variable_name_size); + + /* + * Some firmware implementations return the + * same variable name on multiple calls to + * get_next_variable(). Terminate the loop + * immediately as there is no guarantee that + * we'll ever see a different variable name, + * and may end up looping here forever. + */ + if (variable_is_present(variable_name, &vendor_guid)) { + dup_variable_bug(variable_name, &vendor_guid, + variable_name_size); + status = EFI_NOT_FOUND; + break; + } + efivar_create_sysfs_entry(efivars, variable_name_size, variable_name, @@ -2025,15 +2090,8 @@ int register_efivars(struct efivars *efivars, if (error) unregister_efivars(efivars); - efivars->efi_pstore_info = efi_pstore_info; - - efivars->efi_pstore_info.buf = kmalloc(4096, GFP_KERNEL); - if (efivars->efi_pstore_info.buf) { - efivars->efi_pstore_info.bufsize = 1024; - efivars->efi_pstore_info.data = efivars; - spin_lock_init(&efivars->efi_pstore_info.buf_lock); - pstore_register(&efivars->efi_pstore_info); - } + if (!efivars_pstore_disable) + efivar_pstore_register(efivars); register_filesystem(&efivarfs_type); diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index a71a54a3e3f7..5150df6cba08 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -193,7 +193,7 @@ static void of_gpiochip_add_pin_range(struct gpio_chip *chip) if (!np) return; - do { + for (;; index++) { ret = of_parse_phandle_with_args(np, "gpio-ranges", "#gpio-range-cells", index, &pinspec); if (ret) @@ -222,8 +222,7 @@ static void of_gpiochip_add_pin_range(struct gpio_chip *chip) if (ret) break; - - } while (index++); + } } #else diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index 36493ce71f9a..98cc14725ba9 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -38,11 +38,12 @@ /* position control register for hardware window 0, 2 ~ 4.*/ #define VIDOSD_A(win) (VIDOSD_BASE + 0x00 + (win) * 16) #define VIDOSD_B(win) (VIDOSD_BASE + 0x04 + (win) * 16) -/* size control register for hardware window 0. */ -#define VIDOSD_C_SIZE_W0 (VIDOSD_BASE + 0x08) -/* alpha control register for hardware window 1 ~ 4. */ -#define VIDOSD_C(win) (VIDOSD_BASE + 0x18 + (win) * 16) -/* size control register for hardware window 1 ~ 4. */ +/* + * size control register for hardware windows 0 and alpha control register + * for hardware windows 1 ~ 4 + */ +#define VIDOSD_C(win) (VIDOSD_BASE + 0x08 + (win) * 16) +/* size control register for hardware windows 1 ~ 2. */ #define VIDOSD_D(win) (VIDOSD_BASE + 0x0C + (win) * 16) #define VIDWx_BUF_START(win, buf) (VIDW_BUF_START(buf) + (win) * 8) @@ -50,9 +51,9 @@ #define VIDWx_BUF_SIZE(win, buf) (VIDW_BUF_SIZE(buf) + (win) * 4) /* color key control register for hardware window 1 ~ 4. */ -#define WKEYCON0_BASE(x) ((WKEYCON0 + 0x140) + (x * 8)) +#define WKEYCON0_BASE(x) ((WKEYCON0 + 0x140) + ((x - 1) * 8)) /* color key value register for hardware window 1 ~ 4. */ -#define WKEYCON1_BASE(x) ((WKEYCON1 + 0x140) + (x * 8)) +#define WKEYCON1_BASE(x) ((WKEYCON1 + 0x140) + ((x - 1) * 8)) /* FIMD has totally five hardware windows. */ #define WINDOWS_NR 5 @@ -109,9 +110,9 @@ struct fimd_context { #ifdef CONFIG_OF static const struct of_device_id fimd_driver_dt_match[] = { - { .compatible = "samsung,exynos4-fimd", + { .compatible = "samsung,exynos4210-fimd", .data = &exynos4_fimd_driver_data }, - { .compatible = "samsung,exynos5-fimd", + { .compatible = "samsung,exynos5250-fimd", .data = &exynos5_fimd_driver_data }, {}, }; @@ -581,7 +582,7 @@ static void fimd_win_commit(struct device *dev, int zpos) if (win != 3 && win != 4) { u32 offset = VIDOSD_D(win); if (win == 0) - offset = VIDOSD_C_SIZE_W0; + offset = VIDOSD_C(win); val = win_data->ovl_width * win_data->ovl_height; writel(val, ctx->regs + offset); diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c index 3b0da0378acf..47a493c8a71f 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c +++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c @@ -48,8 +48,14 @@ /* registers for base address */ #define G2D_SRC_BASE_ADDR 0x0304 +#define G2D_SRC_COLOR_MODE 0x030C +#define G2D_SRC_LEFT_TOP 0x0310 +#define G2D_SRC_RIGHT_BOTTOM 0x0314 #define G2D_SRC_PLANE2_BASE_ADDR 0x0318 #define G2D_DST_BASE_ADDR 0x0404 +#define G2D_DST_COLOR_MODE 0x040C +#define G2D_DST_LEFT_TOP 0x0410 +#define G2D_DST_RIGHT_BOTTOM 0x0414 #define G2D_DST_PLANE2_BASE_ADDR 0x0418 #define G2D_PAT_BASE_ADDR 0x0500 #define G2D_MSK_BASE_ADDR 0x0520 @@ -82,7 +88,7 @@ #define G2D_DMA_LIST_DONE_COUNT_OFFSET 17 /* G2D_DMA_HOLD_CMD */ -#define G2D_USET_HOLD (1 << 2) +#define G2D_USER_HOLD (1 << 2) #define G2D_LIST_HOLD (1 << 1) #define G2D_BITBLT_HOLD (1 << 0) @@ -91,13 +97,27 @@ #define G2D_START_NHOLT (1 << 1) #define G2D_START_BITBLT (1 << 0) +/* buffer color format */ +#define G2D_FMT_XRGB8888 0 +#define G2D_FMT_ARGB8888 1 +#define G2D_FMT_RGB565 2 +#define G2D_FMT_XRGB1555 3 +#define G2D_FMT_ARGB1555 4 +#define G2D_FMT_XRGB4444 5 +#define G2D_FMT_ARGB4444 6 +#define G2D_FMT_PACKED_RGB888 7 +#define G2D_FMT_A8 11 +#define G2D_FMT_L8 12 + +/* buffer valid length */ +#define G2D_LEN_MIN 1 +#define G2D_LEN_MAX 8000 + #define G2D_CMDLIST_SIZE (PAGE_SIZE / 4) #define G2D_CMDLIST_NUM 64 #define G2D_CMDLIST_POOL_SIZE (G2D_CMDLIST_SIZE * G2D_CMDLIST_NUM) #define G2D_CMDLIST_DATA_NUM (G2D_CMDLIST_SIZE / sizeof(u32) - 2) -#define MAX_BUF_ADDR_NR 6 - /* maximum buffer pool size of userptr is 64MB as default */ #define MAX_POOL (64 * 1024 * 1024) @@ -106,6 +126,17 @@ enum { BUF_TYPE_USERPTR, }; +enum g2d_reg_type { + REG_TYPE_NONE = -1, + REG_TYPE_SRC, + REG_TYPE_SRC_PLANE2, + REG_TYPE_DST, + REG_TYPE_DST_PLANE2, + REG_TYPE_PAT, + REG_TYPE_MSK, + MAX_REG_TYPE_NR +}; + /* cmdlist data structure */ struct g2d_cmdlist { u32 head; @@ -113,6 +144,42 @@ struct g2d_cmdlist { u32 last; /* last data offset */ }; +/* + * A structure of buffer description + * + * @format: color format + * @left_x: the x coordinates of left top corner + * @top_y: the y coordinates of left top corner + * @right_x: the x coordinates of right bottom corner + * @bottom_y: the y coordinates of right bottom corner + * + */ +struct g2d_buf_desc { + unsigned int format; + unsigned int left_x; + unsigned int top_y; + unsigned int right_x; + unsigned int bottom_y; +}; + +/* + * A structure of buffer information + * + * @map_nr: manages the number of mapped buffers + * @reg_types: stores regitster type in the order of requested command + * @handles: stores buffer handle in its reg_type position + * @types: stores buffer type in its reg_type position + * @descs: stores buffer description in its reg_type position + * + */ +struct g2d_buf_info { + unsigned int map_nr; + enum g2d_reg_type reg_types[MAX_REG_TYPE_NR]; + unsigned long handles[MAX_REG_TYPE_NR]; + unsigned int types[MAX_REG_TYPE_NR]; + struct g2d_buf_desc descs[MAX_REG_TYPE_NR]; +}; + struct drm_exynos_pending_g2d_event { struct drm_pending_event base; struct drm_exynos_g2d_event event; @@ -131,14 +198,11 @@ struct g2d_cmdlist_userptr { bool in_pool; bool out_of_list; }; - struct g2d_cmdlist_node { struct list_head list; struct g2d_cmdlist *cmdlist; - unsigned int map_nr; - unsigned long handles[MAX_BUF_ADDR_NR]; - unsigned int obj_type[MAX_BUF_ADDR_NR]; dma_addr_t dma_addr; + struct g2d_buf_info buf_info; struct drm_exynos_pending_g2d_event *event; }; @@ -188,6 +252,7 @@ static int g2d_init_cmdlist(struct g2d_data *g2d) struct exynos_drm_subdrv *subdrv = &g2d->subdrv; int nr; int ret; + struct g2d_buf_info *buf_info; init_dma_attrs(&g2d->cmdlist_dma_attrs); dma_set_attr(DMA_ATTR_WRITE_COMBINE, &g2d->cmdlist_dma_attrs); @@ -209,11 +274,17 @@ static int g2d_init_cmdlist(struct g2d_data *g2d) } for (nr = 0; nr < G2D_CMDLIST_NUM; nr++) { + unsigned int i; + node[nr].cmdlist = g2d->cmdlist_pool_virt + nr * G2D_CMDLIST_SIZE; node[nr].dma_addr = g2d->cmdlist_pool + nr * G2D_CMDLIST_SIZE; + buf_info = &node[nr].buf_info; + for (i = 0; i < MAX_REG_TYPE_NR; i++) + buf_info->reg_types[i] = REG_TYPE_NONE; + list_add_tail(&node[nr].list, &g2d->free_cmdlist); } @@ -450,7 +521,7 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev, DMA_BIDIRECTIONAL); if (ret < 0) { DRM_ERROR("failed to map sgt with dma region.\n"); - goto err_free_sgt; + goto err_sg_free_table; } g2d_userptr->dma_addr = sgt->sgl[0].dma_address; @@ -467,8 +538,10 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev, return &g2d_userptr->dma_addr; -err_free_sgt: +err_sg_free_table: sg_free_table(sgt); + +err_free_sgt: kfree(sgt); sgt = NULL; @@ -506,36 +579,172 @@ static void g2d_userptr_free_all(struct drm_device *drm_dev, g2d->current_pool = 0; } +static enum g2d_reg_type g2d_get_reg_type(int reg_offset) +{ + enum g2d_reg_type reg_type; + + switch (reg_offset) { + case G2D_SRC_BASE_ADDR: + case G2D_SRC_COLOR_MODE: + case G2D_SRC_LEFT_TOP: + case G2D_SRC_RIGHT_BOTTOM: + reg_type = REG_TYPE_SRC; + break; + case G2D_SRC_PLANE2_BASE_ADDR: + reg_type = REG_TYPE_SRC_PLANE2; + break; + case G2D_DST_BASE_ADDR: + case G2D_DST_COLOR_MODE: + case G2D_DST_LEFT_TOP: + case G2D_DST_RIGHT_BOTTOM: + reg_type = REG_TYPE_DST; + break; + case G2D_DST_PLANE2_BASE_ADDR: + reg_type = REG_TYPE_DST_PLANE2; + break; + case G2D_PAT_BASE_ADDR: + reg_type = REG_TYPE_PAT; + break; + case G2D_MSK_BASE_ADDR: + reg_type = REG_TYPE_MSK; + break; + default: + reg_type = REG_TYPE_NONE; + DRM_ERROR("Unknown register offset![%d]\n", reg_offset); + break; + }; + + return reg_type; +} + +static unsigned long g2d_get_buf_bpp(unsigned int format) +{ + unsigned long bpp; + + switch (format) { + case G2D_FMT_XRGB8888: + case G2D_FMT_ARGB8888: + bpp = 4; + break; + case G2D_FMT_RGB565: + case G2D_FMT_XRGB1555: + case G2D_FMT_ARGB1555: + case G2D_FMT_XRGB4444: + case G2D_FMT_ARGB4444: + bpp = 2; + break; + case G2D_FMT_PACKED_RGB888: + bpp = 3; + break; + default: + bpp = 1; + break; + } + + return bpp; +} + +static bool g2d_check_buf_desc_is_valid(struct g2d_buf_desc *buf_desc, + enum g2d_reg_type reg_type, + unsigned long size) +{ + unsigned int width, height; + unsigned long area; + + /* + * check source and destination buffers only. + * so the others are always valid. + */ + if (reg_type != REG_TYPE_SRC && reg_type != REG_TYPE_DST) + return true; + + width = buf_desc->right_x - buf_desc->left_x; + if (width < G2D_LEN_MIN || width > G2D_LEN_MAX) { + DRM_ERROR("width[%u] is out of range!\n", width); + return false; + } + + height = buf_desc->bottom_y - buf_desc->top_y; + if (height < G2D_LEN_MIN || height > G2D_LEN_MAX) { + DRM_ERROR("height[%u] is out of range!\n", height); + return false; + } + + area = (unsigned long)width * (unsigned long)height * + g2d_get_buf_bpp(buf_desc->format); + if (area > size) { + DRM_ERROR("area[%lu] is out of range[%lu]!\n", area, size); + return false; + } + + return true; +} + static int g2d_map_cmdlist_gem(struct g2d_data *g2d, struct g2d_cmdlist_node *node, struct drm_device *drm_dev, struct drm_file *file) { struct g2d_cmdlist *cmdlist = node->cmdlist; + struct g2d_buf_info *buf_info = &node->buf_info; int offset; + int ret; int i; - for (i = 0; i < node->map_nr; i++) { + for (i = 0; i < buf_info->map_nr; i++) { + struct g2d_buf_desc *buf_desc; + enum g2d_reg_type reg_type; + int reg_pos; unsigned long handle; dma_addr_t *addr; - offset = cmdlist->last - (i * 2 + 1); - handle = cmdlist->data[offset]; + reg_pos = cmdlist->last - 2 * (i + 1); + + offset = cmdlist->data[reg_pos]; + handle = cmdlist->data[reg_pos + 1]; + + reg_type = g2d_get_reg_type(offset); + if (reg_type == REG_TYPE_NONE) { + ret = -EFAULT; + goto err; + } + + buf_desc = &buf_info->descs[reg_type]; + + if (buf_info->types[reg_type] == BUF_TYPE_GEM) { + unsigned long size; + + size = exynos_drm_gem_get_size(drm_dev, handle, file); + if (!size) { + ret = -EFAULT; + goto err; + } + + if (!g2d_check_buf_desc_is_valid(buf_desc, reg_type, + size)) { + ret = -EFAULT; + goto err; + } - if (node->obj_type[i] == BUF_TYPE_GEM) { addr = exynos_drm_gem_get_dma_addr(drm_dev, handle, file); if (IS_ERR(addr)) { - node->map_nr = i; - return -EFAULT; + ret = -EFAULT; + goto err; } } else { struct drm_exynos_g2d_userptr g2d_userptr; if (copy_from_user(&g2d_userptr, (void __user *)handle, sizeof(struct drm_exynos_g2d_userptr))) { - node->map_nr = i; - return -EFAULT; + ret = -EFAULT; + goto err; + } + + if (!g2d_check_buf_desc_is_valid(buf_desc, reg_type, + g2d_userptr.size)) { + ret = -EFAULT; + goto err; } addr = g2d_userptr_get_dma_addr(drm_dev, @@ -544,16 +753,21 @@ static int g2d_map_cmdlist_gem(struct g2d_data *g2d, file, &handle); if (IS_ERR(addr)) { - node->map_nr = i; - return -EFAULT; + ret = -EFAULT; + goto err; } } - cmdlist->data[offset] = *addr; - node->handles[i] = handle; + cmdlist->data[reg_pos + 1] = *addr; + buf_info->reg_types[i] = reg_type; + buf_info->handles[reg_type] = handle; } return 0; + +err: + buf_info->map_nr = i; + return ret; } static void g2d_unmap_cmdlist_gem(struct g2d_data *g2d, @@ -561,22 +775,33 @@ static void g2d_unmap_cmdlist_gem(struct g2d_data *g2d, struct drm_file *filp) { struct exynos_drm_subdrv *subdrv = &g2d->subdrv; + struct g2d_buf_info *buf_info = &node->buf_info; int i; - for (i = 0; i < node->map_nr; i++) { - unsigned long handle = node->handles[i]; + for (i = 0; i < buf_info->map_nr; i++) { + struct g2d_buf_desc *buf_desc; + enum g2d_reg_type reg_type; + unsigned long handle; + + reg_type = buf_info->reg_types[i]; + + buf_desc = &buf_info->descs[reg_type]; + handle = buf_info->handles[reg_type]; - if (node->obj_type[i] == BUF_TYPE_GEM) + if (buf_info->types[reg_type] == BUF_TYPE_GEM) exynos_drm_gem_put_dma_addr(subdrv->drm_dev, handle, filp); else g2d_userptr_put_dma_addr(subdrv->drm_dev, handle, false); - node->handles[i] = 0; + buf_info->reg_types[i] = REG_TYPE_NONE; + buf_info->handles[reg_type] = 0; + buf_info->types[reg_type] = 0; + memset(buf_desc, 0x00, sizeof(*buf_desc)); } - node->map_nr = 0; + buf_info->map_nr = 0; } static void g2d_dma_start(struct g2d_data *g2d, @@ -589,10 +814,6 @@ static void g2d_dma_start(struct g2d_data *g2d, pm_runtime_get_sync(g2d->dev); clk_enable(g2d->gate_clk); - /* interrupt enable */ - writel_relaxed(G2D_INTEN_ACF | G2D_INTEN_UCF | G2D_INTEN_GCF, - g2d->regs + G2D_INTEN); - writel_relaxed(node->dma_addr, g2d->regs + G2D_DMA_SFR_BASE_ADDR); writel_relaxed(G2D_DMA_START, g2d->regs + G2D_DMA_COMMAND); } @@ -643,7 +864,6 @@ static void g2d_runqueue_worker(struct work_struct *work) struct g2d_data *g2d = container_of(work, struct g2d_data, runqueue_work); - mutex_lock(&g2d->runqueue_mutex); clk_disable(g2d->gate_clk); pm_runtime_put_sync(g2d->dev); @@ -724,20 +944,14 @@ static int g2d_check_reg_offset(struct device *dev, int i; for (i = 0; i < nr; i++) { - index = cmdlist->last - 2 * (i + 1); + struct g2d_buf_info *buf_info = &node->buf_info; + struct g2d_buf_desc *buf_desc; + enum g2d_reg_type reg_type; + unsigned long value; - if (for_addr) { - /* check userptr buffer type. */ - reg_offset = (cmdlist->data[index] & - ~0x7fffffff) >> 31; - if (reg_offset) { - node->obj_type[i] = BUF_TYPE_USERPTR; - cmdlist->data[index] &= ~G2D_BUF_USERPTR; - } - } + index = cmdlist->last - 2 * (i + 1); reg_offset = cmdlist->data[index] & ~0xfffff000; - if (reg_offset < G2D_VALID_START || reg_offset > G2D_VALID_END) goto err; if (reg_offset % 4) @@ -753,8 +967,60 @@ static int g2d_check_reg_offset(struct device *dev, if (!for_addr) goto err; - if (node->obj_type[i] != BUF_TYPE_USERPTR) - node->obj_type[i] = BUF_TYPE_GEM; + reg_type = g2d_get_reg_type(reg_offset); + if (reg_type == REG_TYPE_NONE) + goto err; + + /* check userptr buffer type. */ + if ((cmdlist->data[index] & ~0x7fffffff) >> 31) { + buf_info->types[reg_type] = BUF_TYPE_USERPTR; + cmdlist->data[index] &= ~G2D_BUF_USERPTR; + } else + buf_info->types[reg_type] = BUF_TYPE_GEM; + break; + case G2D_SRC_COLOR_MODE: + case G2D_DST_COLOR_MODE: + if (for_addr) + goto err; + + reg_type = g2d_get_reg_type(reg_offset); + if (reg_type == REG_TYPE_NONE) + goto err; + + buf_desc = &buf_info->descs[reg_type]; + value = cmdlist->data[index + 1]; + + buf_desc->format = value & 0xf; + break; + case G2D_SRC_LEFT_TOP: + case G2D_DST_LEFT_TOP: + if (for_addr) + goto err; + + reg_type = g2d_get_reg_type(reg_offset); + if (reg_type == REG_TYPE_NONE) + goto err; + + buf_desc = &buf_info->descs[reg_type]; + value = cmdlist->data[index + 1]; + + buf_desc->left_x = value & 0x1fff; + buf_desc->top_y = (value & 0x1fff0000) >> 16; + break; + case G2D_SRC_RIGHT_BOTTOM: + case G2D_DST_RIGHT_BOTTOM: + if (for_addr) + goto err; + + reg_type = g2d_get_reg_type(reg_offset); + if (reg_type == REG_TYPE_NONE) + goto err; + + buf_desc = &buf_info->descs[reg_type]; + value = cmdlist->data[index + 1]; + + buf_desc->right_x = value & 0x1fff; + buf_desc->bottom_y = (value & 0x1fff0000) >> 16; break; default: if (for_addr) @@ -860,9 +1126,23 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data, cmdlist->data[cmdlist->last++] = G2D_SRC_BASE_ADDR; cmdlist->data[cmdlist->last++] = 0; + /* + * 'LIST_HOLD' command should be set to the DMA_HOLD_CMD_REG + * and GCF bit should be set to INTEN register if user wants + * G2D interrupt event once current command list execution is + * finished. + * Otherwise only ACF bit should be set to INTEN register so + * that one interrupt is occured after all command lists + * have been completed. + */ if (node->event) { + cmdlist->data[cmdlist->last++] = G2D_INTEN; + cmdlist->data[cmdlist->last++] = G2D_INTEN_ACF | G2D_INTEN_GCF; cmdlist->data[cmdlist->last++] = G2D_DMA_HOLD_CMD; cmdlist->data[cmdlist->last++] = G2D_LIST_HOLD; + } else { + cmdlist->data[cmdlist->last++] = G2D_INTEN; + cmdlist->data[cmdlist->last++] = G2D_INTEN_ACF; } /* Check size of cmdlist: last 2 is about G2D_BITBLT_START */ @@ -887,7 +1167,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data, if (ret < 0) goto err_free_event; - node->map_nr = req->cmd_buf_nr; + node->buf_info.map_nr = req->cmd_buf_nr; if (req->cmd_buf_nr) { struct drm_exynos_g2d_cmd *cmd_buf; diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index 67e17ce112b6..0e6fe000578c 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -164,6 +164,27 @@ out: exynos_gem_obj = NULL; } +unsigned long exynos_drm_gem_get_size(struct drm_device *dev, + unsigned int gem_handle, + struct drm_file *file_priv) +{ + struct exynos_drm_gem_obj *exynos_gem_obj; + struct drm_gem_object *obj; + + obj = drm_gem_object_lookup(dev, file_priv, gem_handle); + if (!obj) { + DRM_ERROR("failed to lookup gem object.\n"); + return 0; + } + + exynos_gem_obj = to_exynos_gem_obj(obj); + + drm_gem_object_unreference_unlocked(obj); + + return exynos_gem_obj->buffer->size; +} + + struct exynos_drm_gem_obj *exynos_drm_gem_init(struct drm_device *dev, unsigned long size) { diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h index 35ebac47dc2b..468766bee450 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.h +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h @@ -130,6 +130,11 @@ int exynos_drm_gem_userptr_ioctl(struct drm_device *dev, void *data, int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); +/* get buffer size to gem handle. */ +unsigned long exynos_drm_gem_get_size(struct drm_device *dev, + unsigned int gem_handle, + struct drm_file *file_priv); + /* initialize gem object. */ int exynos_drm_gem_init_object(struct drm_gem_object *obj); diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c index 13ccbd4bcfaa..9504b0cd825a 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c @@ -117,13 +117,12 @@ static struct edid *vidi_get_edid(struct device *dev, } edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH; - edid = kzalloc(edid_len, GFP_KERNEL); + edid = kmemdup(ctx->raw_edid, edid_len, GFP_KERNEL); if (!edid) { DRM_DEBUG_KMS("failed to allocate edid\n"); return ERR_PTR(-ENOMEM); } - memcpy(edid, ctx->raw_edid, edid_len); return edid; } @@ -563,12 +562,11 @@ int vidi_connection_ioctl(struct drm_device *drm_dev, void *data, return -EINVAL; } edid_len = (1 + raw_edid->extensions) * EDID_LENGTH; - ctx->raw_edid = kzalloc(edid_len, GFP_KERNEL); + ctx->raw_edid = kmemdup(raw_edid, edid_len, GFP_KERNEL); if (!ctx->raw_edid) { DRM_DEBUG_KMS("failed to allocate raw_edid.\n"); return -ENOMEM; } - memcpy(ctx->raw_edid, raw_edid, edid_len); } else { /* * with connection = 0, free raw_edid diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index e919aba29b3d..2f4f72f07047 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -818,7 +818,7 @@ static void mixer_win_disable(void *ctx, int win) mixer_ctx->win_data[win].enabled = false; } -int mixer_check_timing(void *ctx, struct fb_videomode *timing) +static int mixer_check_timing(void *ctx, struct fb_videomode *timing) { struct mixer_context *mixer_ctx = ctx; u32 w, h; diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 0a8eceb75902..e9b57893db2b 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -125,6 +125,11 @@ MODULE_PARM_DESC(preliminary_hw_support, "Enable Haswell and ValleyView Support. " "(default: false)"); +int i915_disable_power_well __read_mostly = 0; +module_param_named(disable_power_well, i915_disable_power_well, int, 0600); +MODULE_PARM_DESC(disable_power_well, + "Disable the power well when possible (default: false)"); + static struct drm_driver driver; extern int intel_agp_enabled; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index e95337c97459..01769e2a9953 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1398,6 +1398,7 @@ extern int i915_enable_fbc __read_mostly; extern bool i915_enable_hangcheck __read_mostly; extern int i915_enable_ppgtt __read_mostly; extern unsigned int i915_preliminary_hw_support __read_mostly; +extern int i915_disable_power_well __read_mostly; extern int i915_suspend(struct drm_device *dev, pm_message_t state); extern int i915_resume(struct drm_device *dev); diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 287b42c9d1a8..b20d50192fcc 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5771,6 +5771,11 @@ static int haswell_crtc_mode_set(struct drm_crtc *crtc, num_connectors++; } + if (is_cpu_edp) + intel_crtc->cpu_transcoder = TRANSCODER_EDP; + else + intel_crtc->cpu_transcoder = pipe; + /* We are not sure yet this won't happen. */ WARN(!HAS_PCH_LPT(dev), "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev)); @@ -5837,11 +5842,6 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, int pipe = intel_crtc->pipe; int ret; - if (IS_HASWELL(dev) && intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) - intel_crtc->cpu_transcoder = TRANSCODER_EDP; - else - intel_crtc->cpu_transcoder = pipe; - drm_vblank_pre_modeset(dev, pipe); ret = dev_priv->display.crtc_mode_set(crtc, mode, adjusted_mode, diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index a3730e0289e5..bee8cb6108a7 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -321,9 +321,6 @@ void intel_panel_enable_backlight(struct drm_device *dev, if (dev_priv->backlight_level == 0) dev_priv->backlight_level = intel_panel_get_max_backlight(dev); - dev_priv->backlight_enabled = true; - intel_panel_actually_set_backlight(dev, dev_priv->backlight_level); - if (INTEL_INFO(dev)->gen >= 4) { uint32_t reg, tmp; @@ -359,12 +356,12 @@ void intel_panel_enable_backlight(struct drm_device *dev, } set_level: - /* Check the current backlight level and try to set again if it's zero. - * On some machines, BLC_PWM_CPU_CTL is cleared to zero automatically - * when BLC_PWM_CPU_CTL2 and BLC_PWM_PCH_CTL1 are written. + /* Call below after setting BLC_PWM_CPU_CTL2 and BLC_PWM_PCH_CTL1. + * BLC_PWM_CPU_CTL may be cleared to zero automatically when these + * registers are set. */ - if (!intel_panel_get_backlight(dev)) - intel_panel_actually_set_backlight(dev, dev_priv->backlight_level); + dev_priv->backlight_enabled = true; + intel_panel_actually_set_backlight(dev, dev_priv->backlight_level); } static void intel_panel_init_backlight(struct drm_device *dev) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index a1794c6df1bf..adca00783e61 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4079,6 +4079,9 @@ void intel_set_power_well(struct drm_device *dev, bool enable) if (!IS_HASWELL(dev)) return; + if (!i915_disable_power_well && !enable) + return; + tmp = I915_READ(HSW_PWR_WELL_DRIVER); is_enabled = tmp & HSW_PWR_WELL_STATE; enable_requested = tmp & HSW_PWR_WELL_ENABLE; diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 92e47e5c9564..c4388776f4e4 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -590,6 +590,9 @@ #define USB_VENDOR_ID_MONTEREY 0x0566 #define USB_DEVICE_ID_GENIUS_KB29E 0x3004 +#define USB_VENDOR_ID_MSI 0x1770 +#define USB_DEVICE_ID_MSI_GX680R_LED_PANEL 0xff00 + #define USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR 0x0400 #define USB_DEVICE_ID_N_S_HARMONY 0xc359 @@ -684,6 +687,9 @@ #define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001 0x3001 #define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008 0x3008 +#define USB_VENDOR_ID_REALTEK 0x0bda +#define USB_DEVICE_ID_REALTEK_READER 0x0152 + #define USB_VENDOR_ID_ROCCAT 0x1e7d #define USB_DEVICE_ID_ROCCAT_ARVO 0x30d4 #define USB_DEVICE_ID_ROCCAT_ISKU 0x319c diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 7a1ebb867cf4..82e9211b3ca9 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -621,6 +621,7 @@ static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, { struct mt_device *td = hid_get_drvdata(hid); __s32 quirks = td->mtclass.quirks; + struct input_dev *input = field->hidinput->input; if (hid->claimed & HID_CLAIMED_INPUT) { switch (usage->hid) { @@ -670,13 +671,16 @@ static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, break; default: + if (usage->type) + input_event(input, usage->type, usage->code, + value); return; } if (usage->usage_index + 1 == field->report_count) { /* we only take into account the last report. */ if (usage->hid == td->last_slot_field) - mt_complete_slot(td, field->hidinput->input); + mt_complete_slot(td, input); if (field->index == td->last_field_index && td->num_received >= td->num_expected) diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c index e0e6abf1cd3b..19b8360f2330 100644 --- a/drivers/hid/usbhid/hid-quirks.c +++ b/drivers/hid/usbhid/hid-quirks.c @@ -73,6 +73,7 @@ static const struct hid_blacklist { { USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET }, { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_NOGET }, + { USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GX680R_LED_PANEL, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_NOVATEK, USB_DEVICE_ID_NOVATEK_MOUSE, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1, HID_QUIRK_NO_INIT_REPORTS }, @@ -80,6 +81,7 @@ static const struct hid_blacklist { { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET }, { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001, HID_QUIRK_NOGET }, { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008, HID_QUIRK_NOGET }, + { USB_VENDOR_ID_REALTEK, USB_DEVICE_ID_REALTEK_READER, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_SENNHEISER, USB_DEVICE_ID_SENNHEISER_BTD500USB, HID_QUIRK_NOGET }, { USB_VENDOR_ID_SIGMATEL, USB_DEVICE_ID_SIGMATEL_STMP3780, HID_QUIRK_NOGET }, { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET }, diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index 17ba4f8bc12d..70b1808a08f4 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -186,8 +186,10 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq, wq->rq.queue = dma_alloc_coherent(&(rdev->lldi.pdev->dev), wq->rq.memsize, &(wq->rq.dma_addr), GFP_KERNEL); - if (!wq->rq.queue) + if (!wq->rq.queue) { + ret = -ENOMEM; goto free_sq; + } PDBG("%s sq base va 0x%p pa 0x%llx rq base va 0x%p pa 0x%llx\n", __func__, wq->sq.queue, (unsigned long long)virt_to_phys(wq->sq.queue), diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index 439c35d4a669..ea93870266eb 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -620,7 +620,7 @@ void ipath_ib_rcv(struct ipath_ibdev *dev, void *rhdr, void *data, goto bail; } - opcode = be32_to_cpu(ohdr->bth[0]) >> 24; + opcode = (be32_to_cpu(ohdr->bth[0]) >> 24) & 0x7f; dev->opstats[opcode].n_bytes += tlen; dev->opstats[opcode].n_packets++; diff --git a/drivers/infiniband/hw/qib/Kconfig b/drivers/infiniband/hw/qib/Kconfig index 8349f9c5064c..1e603a375069 100644 --- a/drivers/infiniband/hw/qib/Kconfig +++ b/drivers/infiniband/hw/qib/Kconfig @@ -1,7 +1,7 @@ config INFINIBAND_QIB - tristate "QLogic PCIe HCA support" + tristate "Intel PCIe HCA support" depends on 64BIT ---help--- - This is a low-level driver for QLogic PCIe QLE InfiniBand host - channel adapters. This driver does not support the QLogic + This is a low-level driver for Intel PCIe QLE InfiniBand host + channel adapters. This driver does not support the Intel HyperTransport card (model QHT7140). diff --git a/drivers/infiniband/hw/qib/qib_driver.c b/drivers/infiniband/hw/qib/qib_driver.c index 5423edcab51f..216092477dfc 100644 --- a/drivers/infiniband/hw/qib/qib_driver.c +++ b/drivers/infiniband/hw/qib/qib_driver.c @@ -1,4 +1,5 @@ /* + * Copyright (c) 2013 Intel Corporation. All rights reserved. * Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved. * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. * @@ -63,8 +64,8 @@ MODULE_PARM_DESC(compat_ddr_negotiate, "Attempt pre-IBTA 1.2 DDR speed negotiation"); MODULE_LICENSE("Dual BSD/GPL"); -MODULE_AUTHOR("QLogic <support@qlogic.com>"); -MODULE_DESCRIPTION("QLogic IB driver"); +MODULE_AUTHOR("Intel <ibsupport@intel.com>"); +MODULE_DESCRIPTION("Intel IB driver"); MODULE_VERSION(QIB_DRIVER_VERSION); /* diff --git a/drivers/infiniband/hw/qib/qib_iba6120.c b/drivers/infiniband/hw/qib/qib_iba6120.c index a099ac171e22..0232ae56b1fa 100644 --- a/drivers/infiniband/hw/qib/qib_iba6120.c +++ b/drivers/infiniband/hw/qib/qib_iba6120.c @@ -1,4 +1,5 @@ /* + * Copyright (c) 2013 Intel Corporation. All rights reserved. * Copyright (c) 2006, 2007, 2008, 2009, 2010 QLogic Corporation. * All rights reserved. * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. @@ -51,7 +52,7 @@ static u32 qib_6120_iblink_state(u64); /* * This file contains all the chip-specific register information and - * access functions for the QLogic QLogic_IB PCI-Express chip. + * access functions for the Intel Intel_IB PCI-Express chip. * */ diff --git a/drivers/infiniband/hw/qib/qib_init.c b/drivers/infiniband/hw/qib/qib_init.c index 50e33aa0b4e3..173f805790da 100644 --- a/drivers/infiniband/hw/qib/qib_init.c +++ b/drivers/infiniband/hw/qib/qib_init.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2012 Intel Corporation. All rights reserved. + * Copyright (c) 2012, 2013 Intel Corporation. All rights reserved. * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. * @@ -1138,7 +1138,7 @@ void qib_disable_after_error(struct qib_devdata *dd) static void qib_remove_one(struct pci_dev *); static int qib_init_one(struct pci_dev *, const struct pci_device_id *); -#define DRIVER_LOAD_MSG "QLogic " QIB_DRV_NAME " loaded: " +#define DRIVER_LOAD_MSG "Intel " QIB_DRV_NAME " loaded: " #define PFX QIB_DRV_NAME ": " static DEFINE_PCI_DEVICE_TABLE(qib_pci_tbl) = { @@ -1355,7 +1355,7 @@ static int qib_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) dd = qib_init_iba6120_funcs(pdev, ent); #else qib_early_err(&pdev->dev, - "QLogic PCIE device 0x%x cannot work if CONFIG_PCI_MSI is not enabled\n", + "Intel PCIE device 0x%x cannot work if CONFIG_PCI_MSI is not enabled\n", ent->device); dd = ERR_PTR(-ENODEV); #endif @@ -1371,7 +1371,7 @@ static int qib_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) default: qib_early_err(&pdev->dev, - "Failing on unknown QLogic deviceid 0x%x\n", + "Failing on unknown Intel deviceid 0x%x\n", ent->device); ret = -ENODEV; } diff --git a/drivers/infiniband/hw/qib/qib_sd7220.c b/drivers/infiniband/hw/qib/qib_sd7220.c index 50a8a0d4fe67..08a6c6d39e56 100644 --- a/drivers/infiniband/hw/qib/qib_sd7220.c +++ b/drivers/infiniband/hw/qib/qib_sd7220.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2012 Intel Corporation. All rights reserved. + * Copyright (c) 2013 Intel Corporation. All rights reserved. * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. * @@ -44,7 +44,7 @@ #include "qib.h" #include "qib_7220.h" -#define SD7220_FW_NAME "qlogic/sd7220.fw" +#define SD7220_FW_NAME "intel/sd7220.fw" MODULE_FIRMWARE(SD7220_FW_NAME); /* diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c index ba51a4715a1d..7c0ab16a2fe2 100644 --- a/drivers/infiniband/hw/qib/qib_verbs.c +++ b/drivers/infiniband/hw/qib/qib_verbs.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2012 Intel Corporation. All rights reserved. + * Copyright (c) 2012, 2013 Intel Corporation. All rights reserved. * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved. * @@ -2224,7 +2224,7 @@ int qib_register_ib_device(struct qib_devdata *dd) ibdev->dma_ops = &qib_dma_mapping_ops; snprintf(ibdev->node_desc, sizeof(ibdev->node_desc), - "QLogic Infiniband HCA %s", init_utsname()->nodename); + "Intel Infiniband HCA %s", init_utsname()->nodename); ret = ib_register_device(ibdev, qib_create_port_files); if (ret) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index 67b0c1d23678..1ef880de3a41 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -758,9 +758,13 @@ void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_ if (++priv->tx_outstanding == ipoib_sendq_size) { ipoib_dbg(priv, "TX ring 0x%x full, stopping kernel net queue\n", tx->qp->qp_num); - if (ib_req_notify_cq(priv->send_cq, IB_CQ_NEXT_COMP)) - ipoib_warn(priv, "request notify on send CQ failed\n"); netif_stop_queue(dev); + rc = ib_req_notify_cq(priv->send_cq, + IB_CQ_NEXT_COMP | IB_CQ_REPORT_MISSED_EVENTS); + if (rc < 0) + ipoib_warn(priv, "request notify on send CQ failed\n"); + else if (rc) + ipoib_send_comp_handler(priv->send_cq, dev); } } } diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 5c514d0711d1..c332fb98480d 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -130,7 +130,7 @@ config IRQ_REMAP # OMAP IOMMU support config OMAP_IOMMU bool "OMAP IOMMU Support" - depends on ARCH_OMAP + depends on ARCH_OMAP2PLUS select IOMMU_API config OMAP_IOVMM diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 98f555dafb55..b287ca33833d 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2466,18 +2466,16 @@ static int device_change_notifier(struct notifier_block *nb, /* allocate a protection domain if a device is added */ dma_domain = find_protection_domain(devid); - if (dma_domain) - goto out; - dma_domain = dma_ops_domain_alloc(); - if (!dma_domain) - goto out; - dma_domain->target_dev = devid; - - spin_lock_irqsave(&iommu_pd_list_lock, flags); - list_add_tail(&dma_domain->list, &iommu_pd_list); - spin_unlock_irqrestore(&iommu_pd_list_lock, flags); - - dev_data = get_dev_data(dev); + if (!dma_domain) { + dma_domain = dma_ops_domain_alloc(); + if (!dma_domain) + goto out; + dma_domain->target_dev = devid; + + spin_lock_irqsave(&iommu_pd_list_lock, flags); + list_add_tail(&dma_domain->list, &iommu_pd_list); + spin_unlock_irqrestore(&iommu_pd_list_lock, flags); + } dev->archdata.dma_ops = &amd_iommu_dma_ops; diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index b6ecddb63cd0..e3c2d74b7684 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -980,7 +980,7 @@ static void __init free_iommu_all(void) * BIOS should disable L2B micellaneous clock gating by setting * L2_L2B_CK_GATE_CONTROL[CKGateL2BMiscDisable](D0F2xF4_x90[2]) = 1b */ -static void __init amd_iommu_erratum_746_workaround(struct amd_iommu *iommu) +static void amd_iommu_erratum_746_workaround(struct amd_iommu *iommu) { u32 value; diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c index d56f8c17c5fe..7c11ff368d07 100644 --- a/drivers/iommu/irq_remapping.c +++ b/drivers/iommu/irq_remapping.c @@ -2,7 +2,6 @@ #include <linux/cpumask.h> #include <linux/kernel.h> #include <linux/string.h> -#include <linux/cpumask.h> #include <linux/errno.h> #include <linux/msi.h> #include <linux/irq.h> diff --git a/drivers/media/i2c/m5mols/m5mols_core.c b/drivers/media/i2c/m5mols/m5mols_core.c index d4e7567b367c..0b899cb6cda1 100644 --- a/drivers/media/i2c/m5mols/m5mols_core.c +++ b/drivers/media/i2c/m5mols/m5mols_core.c @@ -724,7 +724,7 @@ static int m5mols_s_stream(struct v4l2_subdev *sd, int enable) if (enable) { if (is_code(code, M5MOLS_RESTYPE_MONITOR)) ret = m5mols_start_monitor(info); - if (is_code(code, M5MOLS_RESTYPE_CAPTURE)) + else if (is_code(code, M5MOLS_RESTYPE_CAPTURE)) ret = m5mols_start_capture(info); else ret = -EINVAL; diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c index ccd18e4ee789..54579e4c740b 100644 --- a/drivers/media/pci/bt8xx/bttv-driver.c +++ b/drivers/media/pci/bt8xx/bttv-driver.c @@ -250,17 +250,19 @@ static u8 SRAM_Table[][60] = vdelay start of active video in 2 * field lines relative to trailing edge of /VRESET pulse (VDELAY register). sheight height of active video in 2 * field lines. + extraheight Added to sheight for cropcap.bounds.height only videostart0 ITU-R frame line number of the line corresponding to vdelay in the first field. */ #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \ - vdelay, sheight, videostart0) \ + vdelay, sheight, extraheight, videostart0) \ .cropcap.bounds.left = minhdelayx1, \ /* * 2 because vertically we count field lines times two, */ \ /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \ .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \ /* 4 is a safety margin at the end of the line. */ \ .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \ - .cropcap.bounds.height = (sheight) + (vdelay) - MIN_VDELAY, \ + .cropcap.bounds.height = (sheight) + (extraheight) + (vdelay) - \ + MIN_VDELAY, \ .cropcap.defrect.left = hdelayx1, \ .cropcap.defrect.top = (videostart0) * 2, \ .cropcap.defrect.width = swidth, \ @@ -301,9 +303,10 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* totalwidth */ 1135, /* sqwidth */ 944, /* vdelay */ 0x20, - /* bt878 (and bt848?) can capture another - line below active video. */ - /* sheight */ (576 + 2) + 0x20 - 2, + /* sheight */ 576, + /* bt878 (and bt848?) can capture another + line below active video. */ + /* extraheight */ 2, /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, @@ -330,6 +333,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* sqwidth */ 780, /* vdelay */ 0x1a, /* sheight */ 480, + /* extraheight */ 0, /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_SECAM, @@ -355,6 +359,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* sqwidth */ 944, /* vdelay */ 0x20, /* sheight */ 576, + /* extraheight */ 0, /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_PAL_Nc, @@ -380,6 +385,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* sqwidth */ 780, /* vdelay */ 0x1a, /* sheight */ 576, + /* extraheight */ 0, /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_PAL_M, @@ -405,6 +411,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* sqwidth */ 780, /* vdelay */ 0x1a, /* sheight */ 480, + /* extraheight */ 0, /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_PAL_N, @@ -430,6 +437,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* sqwidth */ 944, /* vdelay */ 0x20, /* sheight */ 576, + /* extraheight */ 0, /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_NTSC_M_JP, @@ -455,6 +463,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* sqwidth */ 780, /* vdelay */ 0x16, /* sheight */ 480, + /* extraheight */ 0, /* videostart0 */ 23) },{ /* that one hopefully works with the strange timing @@ -484,6 +493,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* sqwidth */ 944, /* vdelay */ 0x1a, /* sheight */ 480, + /* extraheight */ 0, /* videostart0 */ 23) } }; diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c index 82d9f6ac12f3..33b5ffc8d66d 100644 --- a/drivers/media/platform/exynos-gsc/gsc-core.c +++ b/drivers/media/platform/exynos-gsc/gsc-core.c @@ -1054,16 +1054,18 @@ static int gsc_m2m_suspend(struct gsc_dev *gsc) static int gsc_m2m_resume(struct gsc_dev *gsc) { + struct gsc_ctx *ctx; unsigned long flags; spin_lock_irqsave(&gsc->slock, flags); /* Clear for full H/W setup in first run after resume */ + ctx = gsc->m2m.ctx; gsc->m2m.ctx = NULL; spin_unlock_irqrestore(&gsc->slock, flags); if (test_and_clear_bit(ST_M2M_SUSPENDED, &gsc->state)) - gsc_m2m_job_finish(gsc->m2m.ctx, - VB2_BUF_STATE_ERROR); + gsc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR); + return 0; } @@ -1204,7 +1206,7 @@ static int gsc_resume(struct device *dev) /* Do not resume if the device was idle before system suspend */ spin_lock_irqsave(&gsc->slock, flags); if (!test_and_clear_bit(ST_SUSPEND, &gsc->state) || - !gsc_m2m_active(gsc)) { + !gsc_m2m_opened(gsc)) { spin_unlock_irqrestore(&gsc->slock, flags); return 0; } diff --git a/drivers/media/platform/s5p-fimc/fimc-core.c b/drivers/media/platform/s5p-fimc/fimc-core.c index e3916bde45cf..0f513dd19f86 100644 --- a/drivers/media/platform/s5p-fimc/fimc-core.c +++ b/drivers/media/platform/s5p-fimc/fimc-core.c @@ -850,16 +850,18 @@ static int fimc_m2m_suspend(struct fimc_dev *fimc) static int fimc_m2m_resume(struct fimc_dev *fimc) { + struct fimc_ctx *ctx; unsigned long flags; spin_lock_irqsave(&fimc->slock, flags); /* Clear for full H/W setup in first run after resume */ + ctx = fimc->m2m.ctx; fimc->m2m.ctx = NULL; spin_unlock_irqrestore(&fimc->slock, flags); if (test_and_clear_bit(ST_M2M_SUSPENDED, &fimc->state)) - fimc_m2m_job_finish(fimc->m2m.ctx, - VB2_BUF_STATE_ERROR); + fimc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR); + return 0; } diff --git a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c index f0af0754a7b4..ac9663ce2a49 100644 --- a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c +++ b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c @@ -128,10 +128,10 @@ static const u32 src_pixfmt_map[8][3] = { void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f) { enum v4l2_mbus_pixelcode pixelcode = dev->fmt->mbus_code; - unsigned int i = ARRAY_SIZE(src_pixfmt_map); + int i = ARRAY_SIZE(src_pixfmt_map); u32 cfg; - while (i-- >= 0) { + while (--i >= 0) { if (src_pixfmt_map[i][0] == pixelcode) break; } @@ -224,9 +224,9 @@ static void flite_hw_set_out_order(struct fimc_lite *dev, struct flite_frame *f) { V4L2_MBUS_FMT_VYUY8_2X8, FLITE_REG_CIODMAFMT_CRYCBY }, }; u32 cfg = readl(dev->regs + FLITE_REG_CIODMAFMT); - unsigned int i = ARRAY_SIZE(pixcode); + int i = ARRAY_SIZE(pixcode); - while (i-- >= 0) + while (--i >= 0) if (pixcode[i][0] == dev->fmt->mbus_code) break; cfg &= ~FLITE_REG_CIODMAFMT_YCBCR_ORDER_MASK; diff --git a/drivers/media/platform/s5p-fimc/fimc-lite.c b/drivers/media/platform/s5p-fimc/fimc-lite.c index bfc4206935c8..bbc35de7db27 100644 --- a/drivers/media/platform/s5p-fimc/fimc-lite.c +++ b/drivers/media/platform/s5p-fimc/fimc-lite.c @@ -1408,6 +1408,7 @@ static const struct v4l2_ctrl_config fimc_lite_ctrl = { .id = V4L2_CTRL_CLASS_USER | 0x1001, .type = V4L2_CTRL_TYPE_BOOLEAN, .name = "Test Pattern 640x480", + .step = 1, }; static int fimc_lite_create_capture_subdev(struct fimc_lite *fimc) diff --git a/drivers/media/platform/s5p-fimc/fimc-mdevice.c b/drivers/media/platform/s5p-fimc/fimc-mdevice.c index a17fcb2d5d41..cd38d708ab58 100644 --- a/drivers/media/platform/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/platform/s5p-fimc/fimc-mdevice.c @@ -827,7 +827,7 @@ static int fimc_md_link_notify(struct media_pad *source, struct fimc_pipeline *pipeline; struct v4l2_subdev *sd; struct mutex *lock; - int ret = 0; + int i, ret = 0; int ref_count; if (media_entity_type(sink->entity) != MEDIA_ENT_T_V4L2_SUBDEV) @@ -854,29 +854,28 @@ static int fimc_md_link_notify(struct media_pad *source, return 0; } + mutex_lock(lock); + ref_count = fimc ? fimc->vid_cap.refcnt : fimc_lite->ref_count; + if (!(flags & MEDIA_LNK_FL_ENABLED)) { - int i; - mutex_lock(lock); - ret = __fimc_pipeline_close(pipeline); + if (ref_count > 0) { + ret = __fimc_pipeline_close(pipeline); + if (!ret && fimc) + fimc_ctrls_delete(fimc->vid_cap.ctx); + } for (i = 0; i < IDX_MAX; i++) pipeline->subdevs[i] = NULL; - if (fimc) - fimc_ctrls_delete(fimc->vid_cap.ctx); - mutex_unlock(lock); - return ret; + } else if (ref_count > 0) { + /* + * Link activation. Enable power of pipeline elements only if + * the pipeline is already in use, i.e. its video node is open. + * Recreate the controls destroyed during the link deactivation. + */ + ret = __fimc_pipeline_open(pipeline, + source->entity, true); + if (!ret && fimc) + ret = fimc_capture_ctrls_create(fimc); } - /* - * Link activation. Enable power of pipeline elements only if the - * pipeline is already in use, i.e. its video node is opened. - * Recreate the controls destroyed during the link deactivation. - */ - mutex_lock(lock); - - ref_count = fimc ? fimc->vid_cap.refcnt : fimc_lite->ref_count; - if (ref_count > 0) - ret = __fimc_pipeline_open(pipeline, source->entity, true); - if (!ret && fimc) - ret = fimc_capture_ctrls_create(fimc); mutex_unlock(lock); return ret ? -EPIPE : ret; diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c index e84703c314ce..1cb6d57987c6 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c @@ -276,7 +276,7 @@ static void s5p_mfc_handle_frame_new(struct s5p_mfc_ctx *ctx, unsigned int err) unsigned int frame_type; dspl_y_addr = s5p_mfc_hw_call(dev->mfc_ops, get_dspl_y_adr, dev); - frame_type = s5p_mfc_hw_call(dev->mfc_ops, get_dec_frame_type, dev); + frame_type = s5p_mfc_hw_call(dev->mfc_ops, get_disp_frame_type, ctx); /* If frame is same as previous then skip and do not dequeue */ if (frame_type == S5P_FIMV_DECODE_FRAME_SKIPPED) { diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c index 2356fd52a169..4f6b553c4b2d 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c @@ -232,6 +232,7 @@ static struct mfc_control controls[] = { .minimum = 0, .maximum = 1, .default_value = 0, + .step = 1, .menu_skip_mask = 0, }, { diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig index 19f3563c61da..5a79c333d45e 100644 --- a/drivers/media/rc/Kconfig +++ b/drivers/media/rc/Kconfig @@ -291,7 +291,7 @@ config IR_TTUSBIR config IR_RX51 tristate "Nokia N900 IR transmitter diode" - depends on OMAP_DM_TIMER && LIRC && !ARCH_MULTIPLATFORM + depends on OMAP_DM_TIMER && ARCH_OMAP2PLUS && LIRC && !ARCH_MULTIPLATFORM ---help--- Say Y or M here if you want to enable support for the IR transmitter diode built in the Nokia N900 (RX51) device. diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile index a9d355230e8e..768aaf62d5dc 100644 --- a/drivers/media/v4l2-core/Makefile +++ b/drivers/media/v4l2-core/Makefile @@ -10,7 +10,7 @@ ifeq ($(CONFIG_COMPAT),y) videodev-objs += v4l2-compat-ioctl32.o endif -obj-$(CONFIG_VIDEO_DEV) += videodev.o +obj-$(CONFIG_VIDEO_V4L2) += videodev.o obj-$(CONFIG_VIDEO_V4L2_INT_DEVICE) += v4l2-int-device.o obj-$(CONFIG_VIDEO_V4L2) += v4l2-common.o diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index 45ea7185c003..642c6223fa6c 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -152,6 +152,20 @@ static void mei_me_intr_disable(struct mei_device *dev) } /** + * mei_me_hw_reset_release - release device from the reset + * + * @dev: the device structure + */ +static void mei_me_hw_reset_release(struct mei_device *dev) +{ + struct mei_me_hw *hw = to_me_hw(dev); + u32 hcsr = mei_hcsr_read(hw); + + hcsr |= H_IG; + hcsr &= ~H_RST; + mei_hcsr_set(hw, hcsr); +} +/** * mei_me_hw_reset - resets fw via mei csr register. * * @dev: the device structure @@ -169,18 +183,14 @@ static void mei_me_hw_reset(struct mei_device *dev, bool intr_enable) if (intr_enable) hcsr |= H_IE; else - hcsr &= ~H_IE; - - mei_hcsr_set(hw, hcsr); - - hcsr = mei_hcsr_read(hw) | H_IG; - hcsr &= ~H_RST; + hcsr |= ~H_IE; mei_hcsr_set(hw, hcsr); - hcsr = mei_hcsr_read(hw); + if (dev->dev_state == MEI_DEV_POWER_DOWN) + mei_me_hw_reset_release(dev); - dev_dbg(&dev->pdev->dev, "current HCSR = 0x%08x.\n", hcsr); + dev_dbg(&dev->pdev->dev, "current HCSR = 0x%08x.\n", mei_hcsr_read(hw)); } /** @@ -466,7 +476,8 @@ irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id) mutex_unlock(&dev->device_lock); return IRQ_HANDLED; } else { - dev_dbg(&dev->pdev->dev, "FW not ready.\n"); + dev_dbg(&dev->pdev->dev, "Reset Completed.\n"); + mei_me_hw_reset_release(dev); mutex_unlock(&dev->device_lock); return IRQ_HANDLED; } diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index 6ec530168afb..356179991a2e 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -183,6 +183,24 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled) mei_cl_all_write_clear(dev); } +void mei_stop(struct mei_device *dev) +{ + dev_dbg(&dev->pdev->dev, "stopping the device.\n"); + + mutex_lock(&dev->device_lock); + + cancel_delayed_work(&dev->timer_work); + + mei_wd_stop(dev); + + dev->dev_state = MEI_DEV_POWER_DOWN; + mei_reset(dev, 0); + + mutex_unlock(&dev->device_lock); + + flush_scheduled_work(); +} + diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index cb80166161f0..97873812e33b 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -381,6 +381,7 @@ static inline unsigned long mei_secs_to_jiffies(unsigned long sec) void mei_device_init(struct mei_device *dev); void mei_reset(struct mei_device *dev, int interrupts); int mei_hw_init(struct mei_device *dev); +void mei_stop(struct mei_device *dev); /* * MEI interrupt functions prototype diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c index b40ec0601ab0..b8b5c9c3ad03 100644 --- a/drivers/misc/mei/pci-me.c +++ b/drivers/misc/mei/pci-me.c @@ -247,44 +247,14 @@ static void mei_remove(struct pci_dev *pdev) hw = to_me_hw(dev); - mutex_lock(&dev->device_lock); - - cancel_delayed_work(&dev->timer_work); - mei_wd_stop(dev); + dev_err(&pdev->dev, "stop\n"); + mei_stop(dev); mei_pdev = NULL; - if (dev->iamthif_cl.state == MEI_FILE_CONNECTED) { - dev->iamthif_cl.state = MEI_FILE_DISCONNECTING; - mei_cl_disconnect(&dev->iamthif_cl); - } - if (dev->wd_cl.state == MEI_FILE_CONNECTED) { - dev->wd_cl.state = MEI_FILE_DISCONNECTING; - mei_cl_disconnect(&dev->wd_cl); - } - - /* Unregistering watchdog device */ mei_watchdog_unregister(dev); - /* remove entry if already in list */ - dev_dbg(&pdev->dev, "list del iamthif and wd file list.\n"); - - if (dev->open_handle_count > 0) - dev->open_handle_count--; - mei_cl_unlink(&dev->wd_cl); - - if (dev->open_handle_count > 0) - dev->open_handle_count--; - mei_cl_unlink(&dev->iamthif_cl); - - dev->iamthif_current_cb = NULL; - dev->me_clients_num = 0; - - mutex_unlock(&dev->device_lock); - - flush_scheduled_work(); - /* disable interrupts */ mei_disable_interrupts(dev); @@ -308,28 +278,20 @@ static int mei_pci_suspend(struct device *device) { struct pci_dev *pdev = to_pci_dev(device); struct mei_device *dev = pci_get_drvdata(pdev); - int err; if (!dev) return -ENODEV; - mutex_lock(&dev->device_lock); - cancel_delayed_work(&dev->timer_work); + dev_err(&pdev->dev, "suspend\n"); - /* Stop watchdog if exists */ - err = mei_wd_stop(dev); - /* Set new mei state */ - if (dev->dev_state == MEI_DEV_ENABLED || - dev->dev_state == MEI_DEV_RECOVERING_FROM_RESET) { - dev->dev_state = MEI_DEV_POWER_DOWN; - mei_reset(dev, 0); - } - mutex_unlock(&dev->device_lock); + mei_stop(dev); + + mei_disable_interrupts(dev); free_irq(pdev->irq, dev); pci_disable_msi(pdev); - return err; + return 0; } static int mei_pci_resume(struct device *device) diff --git a/drivers/misc/vmw_vmci/vmci_datagram.c b/drivers/misc/vmw_vmci/vmci_datagram.c index ed5c433cd493..f3cdd904fe4d 100644 --- a/drivers/misc/vmw_vmci/vmci_datagram.c +++ b/drivers/misc/vmw_vmci/vmci_datagram.c @@ -42,9 +42,11 @@ struct datagram_entry { struct delayed_datagram_info { struct datagram_entry *entry; - struct vmci_datagram msg; struct work_struct work; bool in_dg_host_queue; + /* msg and msg_payload must be together. */ + struct vmci_datagram msg; + u8 msg_payload[]; }; /* Number of in-flight host->host datagrams */ diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 1c9e09fbdff8..db103e03ba05 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -183,6 +183,11 @@ int bond_create_slave_symlinks(struct net_device *master, sprintf(linkname, "slave_%s", slave->name); ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj), linkname); + + /* free the master link created earlier in case of error */ + if (ret) + sysfs_remove_link(&(slave->dev.kobj), "master"); + return ret; } diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c index 568205436a15..91ecd6a00d05 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c @@ -2139,12 +2139,12 @@ static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap) break; default: BNX2X_ERR("Non valid capability ID\n"); - rval = -EINVAL; + rval = 1; break; } } else { DP(BNX2X_MSG_DCB, "DCB disabled\n"); - rval = -EINVAL; + rval = 1; } DP(BNX2X_MSG_DCB, "capid %d:%x\n", capid, *cap); @@ -2170,12 +2170,12 @@ static int bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num) break; default: BNX2X_ERR("Non valid TC-ID\n"); - rval = -EINVAL; + rval = 1; break; } } else { DP(BNX2X_MSG_DCB, "DCB disabled\n"); - rval = -EINVAL; + rval = 1; } return rval; @@ -2188,7 +2188,7 @@ static int bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num) return -EINVAL; } -static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev) +static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcbx_local_feat.pfc.enabled); @@ -2390,12 +2390,12 @@ static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid, break; default: BNX2X_ERR("Non valid featrue-ID\n"); - rval = -EINVAL; + rval = 1; break; } } else { DP(BNX2X_MSG_DCB, "DCB disabled\n"); - rval = -EINVAL; + rval = 1; } return rval; @@ -2431,12 +2431,12 @@ static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid, break; default: BNX2X_ERR("Non valid featrue-ID\n"); - rval = -EINVAL; + rval = 1; break; } } else { DP(BNX2X_MSG_DCB, "dcbnl call not valid\n"); - rval = -EINVAL; + rval = 1; } return rval; diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c index e3f39372ce25..911d0253dbb2 100644 --- a/drivers/net/ethernet/freescale/fec.c +++ b/drivers/net/ethernet/freescale/fec.c @@ -1332,7 +1332,7 @@ static int fec_enet_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd) static void fec_enet_free_buffers(struct net_device *ndev) { struct fec_enet_private *fep = netdev_priv(ndev); - int i; + unsigned int i; struct sk_buff *skb; struct bufdesc *bdp; @@ -1356,7 +1356,7 @@ static void fec_enet_free_buffers(struct net_device *ndev) static int fec_enet_alloc_buffers(struct net_device *ndev) { struct fec_enet_private *fep = netdev_priv(ndev); - int i; + unsigned int i; struct sk_buff *skb; struct bufdesc *bdp; @@ -1598,7 +1598,7 @@ static int fec_enet_init(struct net_device *ndev) struct fec_enet_private *fep = netdev_priv(ndev); struct bufdesc *cbd_base; struct bufdesc *bdp; - int i; + unsigned int i; /* Allocate memory for buffer descriptors. */ cbd_base = dma_alloc_coherent(NULL, PAGE_SIZE, &fep->bd_dma, diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c index 1f17ca0f2201..0d8df400a479 100644 --- a/drivers/net/ethernet/freescale/fec_ptp.c +++ b/drivers/net/ethernet/freescale/fec_ptp.c @@ -128,6 +128,7 @@ void fec_ptp_start_cyclecounter(struct net_device *ndev) spin_unlock_irqrestore(&fep->tmreg_lock, flags); } +EXPORT_SYMBOL(fec_ptp_start_cyclecounter); /** * fec_ptp_adjfreq - adjust ptp cycle frequency @@ -318,6 +319,7 @@ int fec_ptp_ioctl(struct net_device *ndev, struct ifreq *ifr, int cmd) return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ? -EFAULT : 0; } +EXPORT_SYMBOL(fec_ptp_ioctl); /** * fec_time_keep - call timecounter_read every second to avoid timer overrun @@ -383,3 +385,4 @@ void fec_ptp_init(struct net_device *ndev, struct platform_device *pdev) pr_info("registered PHC device on %s\n", ndev->name); } } +EXPORT_SYMBOL(fec_ptp_init); diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c index b64542acfa34..12b1d8480808 100644 --- a/drivers/net/ethernet/intel/igb/e1000_82575.c +++ b/drivers/net/ethernet/intel/igb/e1000_82575.c @@ -1818,27 +1818,32 @@ out: **/ void igb_vmdq_set_anti_spoofing_pf(struct e1000_hw *hw, bool enable, int pf) { - u32 dtxswc; + u32 reg_val, reg_offset; switch (hw->mac.type) { case e1000_82576: + reg_offset = E1000_DTXSWC; + break; case e1000_i350: - dtxswc = rd32(E1000_DTXSWC); - if (enable) { - dtxswc |= (E1000_DTXSWC_MAC_SPOOF_MASK | - E1000_DTXSWC_VLAN_SPOOF_MASK); - /* The PF can spoof - it has to in order to - * support emulation mode NICs */ - dtxswc ^= (1 << pf | 1 << (pf + MAX_NUM_VFS)); - } else { - dtxswc &= ~(E1000_DTXSWC_MAC_SPOOF_MASK | - E1000_DTXSWC_VLAN_SPOOF_MASK); - } - wr32(E1000_DTXSWC, dtxswc); + reg_offset = E1000_TXSWC; break; default: - break; + return; + } + + reg_val = rd32(reg_offset); + if (enable) { + reg_val |= (E1000_DTXSWC_MAC_SPOOF_MASK | + E1000_DTXSWC_VLAN_SPOOF_MASK); + /* The PF can spoof - it has to in order to + * support emulation mode NICs + */ + reg_val ^= (1 << pf | 1 << (pf + MAX_NUM_VFS)); + } else { + reg_val &= ~(E1000_DTXSWC_MAC_SPOOF_MASK | + E1000_DTXSWC_VLAN_SPOOF_MASK); } + wr32(reg_offset, reg_val); } /** diff --git a/drivers/net/ethernet/intel/igb/igb_hwmon.c b/drivers/net/ethernet/intel/igb/igb_hwmon.c index 4623502054d5..0478a1abe541 100644 --- a/drivers/net/ethernet/intel/igb/igb_hwmon.c +++ b/drivers/net/ethernet/intel/igb/igb_hwmon.c @@ -39,7 +39,7 @@ #include <linux/pci.h> #ifdef CONFIG_IGB_HWMON -struct i2c_board_info i350_sensor_info = { +static struct i2c_board_info i350_sensor_info = { I2C_BOARD_INFO("i350bb", (0Xf8 >> 1)), }; diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 4dbd62968c7a..8496adfc6a68 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -2542,8 +2542,8 @@ static void igb_probe_vfs(struct igb_adapter *adapter) if ((hw->mac.type == e1000_i210) || (hw->mac.type == e1000_i211)) return; - igb_enable_sriov(pdev, max_vfs); pci_sriov_set_totalvfs(pdev, 7); + igb_enable_sriov(pdev, max_vfs); #endif /* CONFIG_PCI_IOV */ } @@ -2652,7 +2652,7 @@ static int igb_sw_init(struct igb_adapter *adapter) if (max_vfs > 7) { dev_warn(&pdev->dev, "Maximum of 7 VFs per PF, using max\n"); - adapter->vfs_allocated_count = 7; + max_vfs = adapter->vfs_allocated_count = 7; } else adapter->vfs_allocated_count = max_vfs; if (adapter->vfs_allocated_count) diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c index 0987822359f0..0a237507ee85 100644 --- a/drivers/net/ethernet/intel/igb/igb_ptp.c +++ b/drivers/net/ethernet/intel/igb/igb_ptp.c @@ -740,7 +740,7 @@ void igb_ptp_init(struct igb_adapter *adapter) case e1000_82576: snprintf(adapter->ptp_caps.name, 16, "%pm", netdev->dev_addr); adapter->ptp_caps.owner = THIS_MODULE; - adapter->ptp_caps.max_adj = 1000000000; + adapter->ptp_caps.max_adj = 999999881; adapter->ptp_caps.n_ext_ts = 0; adapter->ptp_caps.pps = 0; adapter->ptp_caps.adjfreq = igb_ptp_adjfreq_82576; diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index c3db6cd69b68..2b6cb5ca48ee 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -944,9 +944,17 @@ free_queue_irqs: free_irq(adapter->msix_entries[vector].vector, adapter->q_vector[vector]); } - pci_disable_msix(adapter->pdev); - kfree(adapter->msix_entries); - adapter->msix_entries = NULL; + /* This failure is non-recoverable - it indicates the system is + * out of MSIX vector resources and the VF driver cannot run + * without them. Set the number of msix vectors to zero + * indicating that not enough can be allocated. The error + * will be returned to the user indicating device open failed. + * Any further attempts to force the driver to open will also + * fail. The only way to recover is to unload the driver and + * reload it again. If the system has recovered some MSIX + * vectors then it may succeed. + */ + adapter->num_msix_vectors = 0; return err; } @@ -2572,6 +2580,15 @@ static int ixgbevf_open(struct net_device *netdev) struct ixgbe_hw *hw = &adapter->hw; int err; + /* A previous failure to open the device because of a lack of + * available MSIX vector resources may have reset the number + * of msix vectors variable to zero. The only way to recover + * is to unload/reload the driver and hope that the system has + * been able to recover some MSIX vector resources. + */ + if (!adapter->num_msix_vectors) + return -ENOMEM; + /* disallow open during test */ if (test_bit(__IXGBEVF_TESTING, &adapter->state)) return -EBUSY; @@ -2628,7 +2645,6 @@ static int ixgbevf_open(struct net_device *netdev) err_req_irq: ixgbevf_down(adapter); - ixgbevf_free_irq(adapter); err_setup_rx: ixgbevf_free_all_rx_resources(adapter); err_setup_tx: diff --git a/drivers/net/ethernet/lantiq_etop.c b/drivers/net/ethernet/lantiq_etop.c index 6a2127489af7..bfdb06860397 100644 --- a/drivers/net/ethernet/lantiq_etop.c +++ b/drivers/net/ethernet/lantiq_etop.c @@ -769,7 +769,7 @@ ltq_etop_probe(struct platform_device *pdev) return 0; err_free: - kfree(dev); + free_netdev(dev); err_out: return err; } diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 995d4b6d5c1e..f278b10ef714 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -1637,6 +1637,17 @@ void mlx4_en_stop_port(struct net_device *dev, int detach) /* Flush multicast filter */ mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG); + /* Remove flow steering rules for the port*/ + if (mdev->dev->caps.steering_mode == + MLX4_STEERING_MODE_DEVICE_MANAGED) { + ASSERT_RTNL(); + list_for_each_entry_safe(flow, tmp_flow, + &priv->ethtool_list, list) { + mlx4_flow_detach(mdev->dev, flow->id); + list_del(&flow->list); + } + } + mlx4_en_destroy_drop_qp(priv); /* Free TX Rings */ @@ -1657,17 +1668,6 @@ void mlx4_en_stop_port(struct net_device *dev, int detach) if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN)) mdev->mac_removed[priv->port] = 1; - /* Remove flow steering rules for the port*/ - if (mdev->dev->caps.steering_mode == - MLX4_STEERING_MODE_DEVICE_MANAGED) { - ASSERT_RTNL(); - list_for_each_entry_safe(flow, tmp_flow, - &priv->ethtool_list, list) { - mlx4_flow_detach(mdev->dev, flow->id); - list_del(&flow->list); - } - } - /* Free RX Rings */ for (i = 0; i < priv->rx_ring_num; i++) { mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c index 251ae2f93116..8e3123a1df88 100644 --- a/drivers/net/ethernet/mellanox/mlx4/eq.c +++ b/drivers/net/ethernet/mellanox/mlx4/eq.c @@ -771,7 +771,7 @@ int mlx4_MAP_EQ_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_slave_event_eq_info *event_eq = priv->mfunc.master.slave_state[slave].event_eq; u32 in_modifier = vhcr->in_modifier; - u32 eqn = in_modifier & 0x1FF; + u32 eqn = in_modifier & 0x3FF; u64 in_param = vhcr->in_param; int err = 0; int i; diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index 2995687f1aee..1391b52f443a 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -99,6 +99,7 @@ struct res_qp { struct list_head mcg_list; spinlock_t mcg_spl; int local_qpn; + atomic_t ref_count; }; enum res_mtt_states { @@ -197,6 +198,7 @@ enum res_fs_rule_states { struct res_fs_rule { struct res_common com; + int qpn; }; static void *res_tracker_lookup(struct rb_root *root, u64 res_id) @@ -355,7 +357,7 @@ static int mpt_mask(struct mlx4_dev *dev) return dev->caps.num_mpts - 1; } -static void *find_res(struct mlx4_dev *dev, int res_id, +static void *find_res(struct mlx4_dev *dev, u64 res_id, enum mlx4_resource type) { struct mlx4_priv *priv = mlx4_priv(dev); @@ -447,6 +449,7 @@ static struct res_common *alloc_qp_tr(int id) ret->local_qpn = id; INIT_LIST_HEAD(&ret->mcg_list); spin_lock_init(&ret->mcg_spl); + atomic_set(&ret->ref_count, 0); return &ret->com; } @@ -554,7 +557,7 @@ static struct res_common *alloc_xrcdn_tr(int id) return &ret->com; } -static struct res_common *alloc_fs_rule_tr(u64 id) +static struct res_common *alloc_fs_rule_tr(u64 id, int qpn) { struct res_fs_rule *ret; @@ -564,7 +567,7 @@ static struct res_common *alloc_fs_rule_tr(u64 id) ret->com.res_id = id; ret->com.state = RES_FS_RULE_ALLOCATED; - + ret->qpn = qpn; return &ret->com; } @@ -602,7 +605,7 @@ static struct res_common *alloc_tr(u64 id, enum mlx4_resource type, int slave, ret = alloc_xrcdn_tr(id); break; case RES_FS_RULE: - ret = alloc_fs_rule_tr(id); + ret = alloc_fs_rule_tr(id, extra); break; default: return NULL; @@ -671,10 +674,14 @@ undo: static int remove_qp_ok(struct res_qp *res) { - if (res->com.state == RES_QP_BUSY) + if (res->com.state == RES_QP_BUSY || atomic_read(&res->ref_count) || + !list_empty(&res->mcg_list)) { + pr_err("resource tracker: fail to remove qp, state %d, ref_count %d\n", + res->com.state, atomic_read(&res->ref_count)); return -EBUSY; - else if (res->com.state != RES_QP_RESERVED) + } else if (res->com.state != RES_QP_RESERVED) { return -EPERM; + } return 0; } @@ -3124,6 +3131,7 @@ int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave, struct list_head *rlist = &tracker->slave_list[slave].res_list[RES_MAC]; int err; int qpn; + struct res_qp *rqp; struct mlx4_net_trans_rule_hw_ctrl *ctrl; struct _rule_hw *rule_header; int header_id; @@ -3134,7 +3142,7 @@ int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave, ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf; qpn = be32_to_cpu(ctrl->qpn) & 0xffffff; - err = get_res(dev, slave, qpn, RES_QP, NULL); + err = get_res(dev, slave, qpn, RES_QP, &rqp); if (err) { pr_err("Steering rule with qpn 0x%x rejected.\n", qpn); return err; @@ -3175,14 +3183,16 @@ int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave, if (err) goto err_put; - err = add_res_range(dev, slave, vhcr->out_param, 1, RES_FS_RULE, 0); + err = add_res_range(dev, slave, vhcr->out_param, 1, RES_FS_RULE, qpn); if (err) { mlx4_err(dev, "Fail to add flow steering resources.\n "); /* detach rule*/ mlx4_cmd(dev, vhcr->out_param, 0, 0, MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); + goto err_put; } + atomic_inc(&rqp->ref_count); err_put: put_res(dev, slave, qpn, RES_QP); return err; @@ -3195,20 +3205,35 @@ int mlx4_QP_FLOW_STEERING_DETACH_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_cmd_info *cmd) { int err; + struct res_qp *rqp; + struct res_fs_rule *rrule; if (dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED) return -EOPNOTSUPP; + err = get_res(dev, slave, vhcr->in_param, RES_FS_RULE, &rrule); + if (err) + return err; + /* Release the rule form busy state before removal */ + put_res(dev, slave, vhcr->in_param, RES_FS_RULE); + err = get_res(dev, slave, rrule->qpn, RES_QP, &rqp); + if (err) + return err; + err = rem_res_range(dev, slave, vhcr->in_param, 1, RES_FS_RULE, 0); if (err) { mlx4_err(dev, "Fail to remove flow steering resources.\n "); - return err; + goto out; } err = mlx4_cmd(dev, vhcr->in_param, 0, 0, MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); + if (!err) + atomic_dec(&rqp->ref_count); +out: + put_res(dev, slave, rrule->qpn, RES_QP); return err; } @@ -3806,6 +3831,7 @@ void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave) mutex_lock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); /*VLAN*/ rem_slave_macs(dev, slave); + rem_slave_fs_rule(dev, slave); rem_slave_qps(dev, slave); rem_slave_srqs(dev, slave); rem_slave_cqs(dev, slave); @@ -3814,6 +3840,5 @@ void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave) rem_slave_mtts(dev, slave); rem_slave_counters(dev, slave); rem_slave_xrcdns(dev, slave); - rem_slave_fs_rule(dev, slave); mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); } diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c index c4122c86f829..efa29b712d5f 100644 --- a/drivers/net/ethernet/nxp/lpc_eth.c +++ b/drivers/net/ethernet/nxp/lpc_eth.c @@ -1472,7 +1472,8 @@ static int lpc_eth_drv_probe(struct platform_device *pdev) } platform_set_drvdata(pdev, ndev); - if (lpc_mii_init(pldat) != 0) + ret = lpc_mii_init(pldat); + if (ret) goto err_out_unregister_netdev; netdev_info(ndev, "LPC mac at 0x%08x irq %d\n", diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c index 39ab4d09faaa..73ce7dd6b954 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c @@ -1726,9 +1726,9 @@ pch_gbe_clean_rx(struct pch_gbe_adapter *adapter, skb->protocol = eth_type_trans(skb, netdev); if (tcp_ip_status & PCH_GBE_RXD_ACC_STAT_TCPIPOK) - skb->ip_summed = CHECKSUM_NONE; - else skb->ip_summed = CHECKSUM_UNNECESSARY; + else + skb->ip_summed = CHECKSUM_NONE; napi_gro_receive(&adapter->napi, skb); (*work_done)++; diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 33e96176e4d8..bf5e3cf97c4d 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -2220,6 +2220,7 @@ static void sh_eth_tsu_init(struct sh_eth_private *mdp) /* MDIO bus release function */ static int sh_mdio_release(struct net_device *ndev) { + struct sh_eth_private *mdp = netdev_priv(ndev); struct mii_bus *bus = dev_get_drvdata(&ndev->dev); /* unregister mdio bus */ @@ -2234,6 +2235,9 @@ static int sh_mdio_release(struct net_device *ndev) /* free bitbang info */ free_mdio_bitbang(bus); + /* free bitbang memory */ + kfree(mdp->bitbang); + return 0; } @@ -2262,6 +2266,7 @@ static int sh_mdio_init(struct net_device *ndev, int id, bitbang->ctrl.ops = &bb_ops; /* MII controller setting */ + mdp->bitbang = bitbang; mdp->mii_bus = alloc_mdio_bitbang(&bitbang->ctrl); if (!mdp->mii_bus) { ret = -ENOMEM; @@ -2441,6 +2446,11 @@ static int sh_eth_drv_probe(struct platform_device *pdev) } mdp->tsu_addr = ioremap(rtsu->start, resource_size(rtsu)); + if (mdp->tsu_addr == NULL) { + ret = -ENOMEM; + dev_err(&pdev->dev, "TSU ioremap failed.\n"); + goto out_release; + } mdp->port = devno % 2; ndev->features = NETIF_F_HW_VLAN_FILTER; } diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h index bae84fd2e73a..e6655678458e 100644 --- a/drivers/net/ethernet/renesas/sh_eth.h +++ b/drivers/net/ethernet/renesas/sh_eth.h @@ -705,6 +705,7 @@ struct sh_eth_private { const u16 *reg_offset; void __iomem *addr; void __iomem *tsu_addr; + struct bb_info *bitbang; u32 num_rx_ring; u32 num_tx_ring; dma_addr_t rx_desc_dma; diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 75c48558e6fd..df32a090d08e 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -1364,7 +1364,7 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, struct platform_device *mdio; parp = of_get_property(slave_node, "phy_id", &lenp); - if ((parp == NULL) && (lenp != (sizeof(void *) * 2))) { + if ((parp == NULL) || (lenp != (sizeof(void *) * 2))) { pr_err("Missing slave[%d] phy_id property\n", i); ret = -EINVAL; goto error_ret; diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 4cc13940c895..f76c3ca07a45 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -1023,6 +1023,7 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah, AR_PHY_AGC_CONTROL_FLTR_CAL | AR_PHY_AGC_CONTROL_PKDET_CAL; + /* Use chip chainmask only for calibration */ ar9003_hw_set_chain_masks(ah, ah->caps.rx_chainmask, ah->caps.tx_chainmask); if (rtt) { @@ -1150,6 +1151,9 @@ skip_tx_iqcal: ar9003_hw_rtt_disable(ah); } + /* Revert chainmask to runtime parameters */ + ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask); + /* Initialize list pointers */ ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL; diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c index ade3afb21f91..39c84ecf6a42 100644 --- a/drivers/net/wireless/ath/ath9k/link.c +++ b/drivers/net/wireless/ath/ath9k/link.c @@ -28,21 +28,21 @@ void ath_tx_complete_poll_work(struct work_struct *work) int i; bool needreset = false; - for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) - if (ATH_TXQ_SETUP(sc, i)) { - txq = &sc->tx.txq[i]; - ath_txq_lock(sc, txq); - if (txq->axq_depth) { - if (txq->axq_tx_inprogress) { - needreset = true; - ath_txq_unlock(sc, txq); - break; - } else { - txq->axq_tx_inprogress = true; - } + for (i = 0; i < IEEE80211_NUM_ACS; i++) { + txq = sc->tx.txq_map[i]; + + ath_txq_lock(sc, txq); + if (txq->axq_depth) { + if (txq->axq_tx_inprogress) { + needreset = true; + ath_txq_unlock(sc, txq); + break; + } else { + txq->axq_tx_inprogress = true; } - ath_txq_unlock_complete(sc, txq); } + ath_txq_unlock_complete(sc, txq); + } if (needreset) { ath_dbg(ath9k_hw_common(sc->sc_ah), RESET, diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c index 3630a41df50d..c353b5f19c8c 100644 --- a/drivers/net/wireless/iwlegacy/3945-mac.c +++ b/drivers/net/wireless/iwlegacy/3945-mac.c @@ -475,6 +475,7 @@ il3945_tx_skb(struct il_priv *il, dma_addr_t txcmd_phys; int txq_id = skb_get_queue_mapping(skb); u16 len, idx, hdr_len; + u16 firstlen, secondlen; u8 id; u8 unicast; u8 sta_id; @@ -589,21 +590,22 @@ il3945_tx_skb(struct il_priv *il, len = sizeof(struct il3945_tx_cmd) + sizeof(struct il_cmd_header) + hdr_len; - len = (len + 3) & ~3; + firstlen = (len + 3) & ~3; /* Physical address of this Tx command's header (not MAC header!), * within command buffer array. */ txcmd_phys = - pci_map_single(il->pci_dev, &out_cmd->hdr, len, PCI_DMA_TODEVICE); + pci_map_single(il->pci_dev, &out_cmd->hdr, firstlen, + PCI_DMA_TODEVICE); if (unlikely(pci_dma_mapping_error(il->pci_dev, txcmd_phys))) goto drop_unlock; /* Set up TFD's 2nd entry to point directly to remainder of skb, * if any (802.11 null frames have no payload). */ - len = skb->len - hdr_len; - if (len) { + secondlen = skb->len - hdr_len; + if (secondlen > 0) { phys_addr = - pci_map_single(il->pci_dev, skb->data + hdr_len, len, + pci_map_single(il->pci_dev, skb->data + hdr_len, secondlen, PCI_DMA_TODEVICE); if (unlikely(pci_dma_mapping_error(il->pci_dev, phys_addr))) goto drop_unlock; @@ -611,12 +613,12 @@ il3945_tx_skb(struct il_priv *il, /* Add buffer containing Tx command and MAC(!) header to TFD's * first entry */ - il->ops->txq_attach_buf_to_tfd(il, txq, txcmd_phys, len, 1, 0); + il->ops->txq_attach_buf_to_tfd(il, txq, txcmd_phys, firstlen, 1, 0); dma_unmap_addr_set(out_meta, mapping, txcmd_phys); - dma_unmap_len_set(out_meta, len, len); - if (len) - il->ops->txq_attach_buf_to_tfd(il, txq, phys_addr, len, 0, - U32_PAD(len)); + dma_unmap_len_set(out_meta, len, firstlen); + if (secondlen > 0) + il->ops->txq_attach_buf_to_tfd(il, txq, phys_addr, secondlen, 0, + U32_PAD(secondlen)); if (!ieee80211_has_morefrags(hdr->frame_control)) { txq->need_update = 1; diff --git a/drivers/net/wireless/mwifiex/cmdevt.c b/drivers/net/wireless/mwifiex/cmdevt.c index 20a6c5555873..b5c8b962ce12 100644 --- a/drivers/net/wireless/mwifiex/cmdevt.c +++ b/drivers/net/wireless/mwifiex/cmdevt.c @@ -157,6 +157,20 @@ static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv, return -1; } + cmd_code = le16_to_cpu(host_cmd->command); + cmd_size = le16_to_cpu(host_cmd->size); + + if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET && + cmd_code != HostCmd_CMD_FUNC_SHUTDOWN && + cmd_code != HostCmd_CMD_FUNC_INIT) { + dev_err(adapter->dev, + "DNLD_CMD: FW in reset state, ignore cmd %#x\n", + cmd_code); + mwifiex_complete_cmd(adapter, cmd_node); + mwifiex_insert_cmd_to_free_q(adapter, cmd_node); + return -1; + } + /* Set command sequence number */ adapter->seq_num++; host_cmd->seq_num = cpu_to_le16(HostCmd_SET_SEQ_NO_BSS_INFO @@ -168,9 +182,6 @@ static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv, adapter->curr_cmd = cmd_node; spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); - cmd_code = le16_to_cpu(host_cmd->command); - cmd_size = le16_to_cpu(host_cmd->size); - /* Adjust skb length */ if (cmd_node->cmd_skb->len > cmd_size) /* @@ -484,8 +495,6 @@ int mwifiex_send_cmd_sync(struct mwifiex_private *priv, uint16_t cmd_no, ret = mwifiex_send_cmd_async(priv, cmd_no, cmd_action, cmd_oid, data_buf); - if (!ret) - ret = mwifiex_wait_queue_complete(adapter); return ret; } @@ -588,9 +597,10 @@ int mwifiex_send_cmd_async(struct mwifiex_private *priv, uint16_t cmd_no, if (cmd_no == HostCmd_CMD_802_11_SCAN) { mwifiex_queue_scan_cmd(priv, cmd_node); } else { - adapter->cmd_queued = cmd_node; mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, true); queue_work(adapter->workqueue, &adapter->main_work); + if (cmd_node->wait_q_enabled) + ret = mwifiex_wait_queue_complete(adapter, cmd_node); } return ret; diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c index e38aa9b3663d..0ff4c37ab42a 100644 --- a/drivers/net/wireless/mwifiex/init.c +++ b/drivers/net/wireless/mwifiex/init.c @@ -709,6 +709,14 @@ mwifiex_shutdown_drv(struct mwifiex_adapter *adapter) return ret; } + /* cancel current command */ + if (adapter->curr_cmd) { + dev_warn(adapter->dev, "curr_cmd is still in processing\n"); + del_timer(&adapter->cmd_timer); + mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd); + adapter->curr_cmd = NULL; + } + /* shut down mwifiex */ dev_dbg(adapter->dev, "info: shutdown mwifiex...\n"); diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h index 553adfb0aa81..7035ade9af74 100644 --- a/drivers/net/wireless/mwifiex/main.h +++ b/drivers/net/wireless/mwifiex/main.h @@ -723,7 +723,6 @@ struct mwifiex_adapter { u16 cmd_wait_q_required; struct mwifiex_wait_queue cmd_wait_q; u8 scan_wait_q_woken; - struct cmd_ctrl_node *cmd_queued; spinlock_t queue_lock; /* lock for tx queues */ struct completion fw_load; u8 country_code[IEEE80211_COUNTRY_STRING_LEN]; @@ -1018,7 +1017,8 @@ int mwifiex_request_set_multicast_list(struct mwifiex_private *priv, struct mwifiex_multicast_list *mcast_list); int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist, struct net_device *dev); -int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter); +int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter, + struct cmd_ctrl_node *cmd_queued); int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss, struct cfg80211_ssid *req_ssid); int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type); diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c index bb60c2754a97..d215b4d3c51b 100644 --- a/drivers/net/wireless/mwifiex/scan.c +++ b/drivers/net/wireless/mwifiex/scan.c @@ -1388,10 +1388,13 @@ int mwifiex_scan_networks(struct mwifiex_private *priv, list_del(&cmd_node->list); spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags); - adapter->cmd_queued = cmd_node; mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, true); queue_work(adapter->workqueue, &adapter->main_work); + + /* Perform internal scan synchronously */ + if (!priv->scan_request) + mwifiex_wait_queue_complete(adapter, cmd_node); } else { spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags); @@ -1946,9 +1949,6 @@ int mwifiex_request_scan(struct mwifiex_private *priv, /* Normal scan */ ret = mwifiex_scan_networks(priv, NULL); - if (!ret) - ret = mwifiex_wait_queue_complete(priv->adapter); - up(&priv->async_sem); return ret; diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c index 9f33c92c90f5..13100f8de3db 100644 --- a/drivers/net/wireless/mwifiex/sta_ioctl.c +++ b/drivers/net/wireless/mwifiex/sta_ioctl.c @@ -54,16 +54,10 @@ int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist, * This function waits on a cmd wait queue. It also cancels the pending * request after waking up, in case of errors. */ -int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter) +int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter, + struct cmd_ctrl_node *cmd_queued) { int status; - struct cmd_ctrl_node *cmd_queued; - - if (!adapter->cmd_queued) - return 0; - - cmd_queued = adapter->cmd_queued; - adapter->cmd_queued = NULL; dev_dbg(adapter->dev, "cmd pending\n"); atomic_inc(&adapter->cmd_pending); diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c index 156b52732f3d..5847d6d0881e 100644 --- a/drivers/net/wireless/rtlwifi/usb.c +++ b/drivers/net/wireless/rtlwifi/usb.c @@ -851,6 +851,7 @@ static void _rtl_usb_transmit(struct ieee80211_hw *hw, struct sk_buff *skb, if (unlikely(!_urb)) { RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Can't allocate urb. Drop skb!\n"); + kfree_skb(skb); return; } _rtl_submit_tx_urb(hw, _urb); diff --git a/drivers/pinctrl/mvebu/pinctrl-mvebu.c b/drivers/pinctrl/mvebu/pinctrl-mvebu.c index c689c04a4f52..2d2f0a43d36b 100644 --- a/drivers/pinctrl/mvebu/pinctrl-mvebu.c +++ b/drivers/pinctrl/mvebu/pinctrl-mvebu.c @@ -620,7 +620,7 @@ int mvebu_pinctrl_probe(struct platform_device *pdev) /* special soc specific control */ if (ctrl->mpp_get || ctrl->mpp_set) { - if (!ctrl->name || !ctrl->mpp_set || !ctrl->mpp_set) { + if (!ctrl->name || !ctrl->mpp_get || !ctrl->mpp_set) { dev_err(&pdev->dev, "wrong soc control info\n"); return -EINVAL; } diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c index ac8d382a79bb..d611ecfcbf70 100644 --- a/drivers/pinctrl/pinconf.c +++ b/drivers/pinctrl/pinconf.c @@ -622,7 +622,7 @@ static const struct file_operations pinconf_dbg_pinname_fops = { static int pinconf_dbg_state_print(struct seq_file *s, void *d) { if (strlen(dbg_state_name)) - seq_printf(s, "%s\n", dbg_pinname); + seq_printf(s, "%s\n", dbg_state_name); else seq_printf(s, "No pin state set\n"); return 0; diff --git a/drivers/pinctrl/pinconf.h b/drivers/pinctrl/pinconf.h index e3ed8cb072a5..bfda73d64eed 100644 --- a/drivers/pinctrl/pinconf.h +++ b/drivers/pinctrl/pinconf.h @@ -90,7 +90,7 @@ static inline void pinconf_init_device_debugfs(struct dentry *devroot, * pin config. */ -#ifdef CONFIG_GENERIC_PINCONF +#if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_DEBUG_FS) void pinconf_generic_dump_pin(struct pinctrl_dev *pctldev, struct seq_file *s, unsigned pin); diff --git a/drivers/pinctrl/pinctrl-abx500.c b/drivers/pinctrl/pinctrl-abx500.c index caecdd373061..c542a97c82f3 100644 --- a/drivers/pinctrl/pinctrl-abx500.c +++ b/drivers/pinctrl/pinctrl-abx500.c @@ -422,7 +422,7 @@ static u8 abx500_get_mode(struct pinctrl_dev *pctldev, struct gpio_chip *chip, } /* check if pin use AlternateFunction register */ - if ((af.alt_bit1 == UNUSED) && (af.alt_bit1 == UNUSED)) + if ((af.alt_bit1 == UNUSED) && (af.alt_bit2 == UNUSED)) return mode; /* * if pin GPIOSEL bit is set and pin supports alternate function, diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c index 1a00658b3ea0..bd83c8b01cd1 100644 --- a/drivers/pinctrl/pinmux.c +++ b/drivers/pinctrl/pinmux.c @@ -194,6 +194,11 @@ static const char *pin_free(struct pinctrl_dev *pctldev, int pin, } if (!gpio_range) { + /* + * A pin should not be freed more times than allocated. + */ + if (WARN_ON(!desc->mux_usecount)) + return NULL; desc->mux_usecount--; if (desc->mux_usecount) return NULL; diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c index 81a1fe661579..71a73ec5af8d 100644 --- a/drivers/staging/comedi/drivers/s626.c +++ b/drivers/staging/comedi/drivers/s626.c @@ -1483,7 +1483,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) case TRIG_NONE: /* continous acquisition */ devpriv->ai_continous = 1; - devpriv->ai_sample_count = 0; + devpriv->ai_sample_count = 1; break; } diff --git a/drivers/staging/zcache/Kconfig b/drivers/staging/zcache/Kconfig index 73582705e8c5..5c3714530961 100644 --- a/drivers/staging/zcache/Kconfig +++ b/drivers/staging/zcache/Kconfig @@ -15,7 +15,7 @@ config RAMSTER depends on CONFIGFS_FS=y && SYSFS=y && !HIGHMEM && ZCACHE=y depends on NET # must ensure struct page is 8-byte aligned - select HAVE_ALIGNED_STRUCT_PAGE if !64_BIT + select HAVE_ALIGNED_STRUCT_PAGE if !64BIT default n help RAMster allows RAM on other machines in a cluster to be utilized diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 2030b608136d..3243ea790eab 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -1139,8 +1139,10 @@ target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb) return ret; ret = target_check_reservation(cmd); - if (ret) + if (ret) { + cmd->scsi_status = SAM_STAT_RESERVATION_CONFLICT; return ret; + } ret = dev->transport->parse_cdb(cmd); if (ret) diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250_core.c index cf6a5383748a..35f9c96aada9 100644 --- a/drivers/tty/serial/8250/8250.c +++ b/drivers/tty/serial/8250/8250_core.c @@ -3418,6 +3418,7 @@ MODULE_PARM_DESC(probe_rsa, "Probe I/O ports for RSA"); #endif MODULE_ALIAS_CHARDEV_MAJOR(TTY_MAJOR); +#ifdef CONFIG_SERIAL_8250_DEPRECATED_OPTIONS #ifndef MODULE /* This module was renamed to 8250_core in 3.7. Keep the old "8250" name * working as well for the module options so we don't break people. We @@ -3432,7 +3433,7 @@ MODULE_ALIAS_CHARDEV_MAJOR(TTY_MAJOR); static void __used s8250_options(void) { #undef MODULE_PARAM_PREFIX -#define MODULE_PARAM_PREFIX "8250." +#define MODULE_PARAM_PREFIX "8250_core." module_param_cb(share_irqs, ¶m_ops_uint, &share_irqs, 0644); module_param_cb(nr_uarts, ¶m_ops_uint, &nr_uarts, 0644); @@ -3444,5 +3445,6 @@ static void __used s8250_options(void) #endif } #else -MODULE_ALIAS("8250"); +MODULE_ALIAS("8250_core"); +#endif #endif diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index aa76825229dc..26e3a97ab157 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -1554,6 +1554,7 @@ pci_wch_ch353_setup(struct serial_private *priv, #define PCI_DEVICE_ID_PLX_CRONYX_OMEGA 0xc001 #define PCI_DEVICE_ID_INTEL_PATSBURG_KT 0x1d3d #define PCI_VENDOR_ID_WCH 0x4348 +#define PCI_DEVICE_ID_WCH_CH352_2S 0x3253 #define PCI_DEVICE_ID_WCH_CH353_4S 0x3453 #define PCI_DEVICE_ID_WCH_CH353_2S1PF 0x5046 #define PCI_DEVICE_ID_WCH_CH353_2S1P 0x7053 @@ -2172,6 +2173,14 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = { .subdevice = PCI_ANY_ID, .setup = pci_wch_ch353_setup, }, + /* WCH CH352 2S card (16550 clone) */ + { + .vendor = PCI_VENDOR_ID_WCH, + .device = PCI_DEVICE_ID_WCH_CH352_2S, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_wch_ch353_setup, + }, /* * ASIX devices with FIFO bug */ @@ -4870,6 +4879,10 @@ static struct pci_device_id serial_pci_tbl[] = { PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_b0_bt_2_115200 }, + { PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH352_2S, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, pbn_b0_bt_2_115200 }, + /* * Commtech, Inc. Fastcom adapters */ diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index 2ef9537bcb2c..80fe91e64a52 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -33,6 +33,23 @@ config SERIAL_8250 Most people will say Y or M here, so that they can use serial mice, modems and similar devices connecting to the standard serial ports. +config SERIAL_8250_DEPRECATED_OPTIONS + bool "Support 8250_core.* kernel options (DEPRECATED)" + depends on SERIAL_8250 + default y + ---help--- + In 3.7 we renamed 8250 to 8250_core by mistake, so now we have to + accept kernel parameters in both forms like 8250_core.nr_uarts=4 and + 8250.nr_uarts=4. We now renamed the module back to 8250, but if + anybody noticed in 3.7 and changed their userspace we still have to + keep the 8350_core.* options around until they revert the changes + they already did. + + If 8250 is built as a module, this adds 8250_core alias instead. + + If you did not notice yet and/or you have userspace from pre-3.7, it + is safe (and recommended) to say N here. + config SERIAL_8250_PNP bool "8250/16550 PNP device support" if EXPERT depends on SERIAL_8250 && PNP diff --git a/drivers/tty/serial/8250/Makefile b/drivers/tty/serial/8250/Makefile index a23838a4d535..36d68d054307 100644 --- a/drivers/tty/serial/8250/Makefile +++ b/drivers/tty/serial/8250/Makefile @@ -2,10 +2,10 @@ # Makefile for the 8250 serial device drivers. # -obj-$(CONFIG_SERIAL_8250) += 8250_core.o -8250_core-y := 8250.o -8250_core-$(CONFIG_SERIAL_8250_PNP) += 8250_pnp.o -8250_core-$(CONFIG_SERIAL_8250_DMA) += 8250_dma.o +obj-$(CONFIG_SERIAL_8250) += 8250.o +8250-y := 8250_core.o +8250-$(CONFIG_SERIAL_8250_PNP) += 8250_pnp.o +8250-$(CONFIG_SERIAL_8250_DMA) += 8250_dma.o obj-$(CONFIG_SERIAL_8250_GSC) += 8250_gsc.o obj-$(CONFIG_SERIAL_8250_PCI) += 8250_pci.o obj-$(CONFIG_SERIAL_8250_HP300) += 8250_hp300.o diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index d4a7c241b751..3467462869ce 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -158,7 +158,7 @@ struct atmel_uart_port { }; static struct atmel_uart_port atmel_ports[ATMEL_MAX_UART]; -static unsigned long atmel_ports_in_use; +static DECLARE_BITMAP(atmel_ports_in_use, ATMEL_MAX_UART); #ifdef SUPPORT_SYSRQ static struct console atmel_console; @@ -1769,15 +1769,14 @@ static int atmel_serial_probe(struct platform_device *pdev) if (ret < 0) /* port id not found in platform data nor device-tree aliases: * auto-enumerate it */ - ret = find_first_zero_bit(&atmel_ports_in_use, - sizeof(atmel_ports_in_use)); + ret = find_first_zero_bit(atmel_ports_in_use, ATMEL_MAX_UART); - if (ret > ATMEL_MAX_UART) { + if (ret >= ATMEL_MAX_UART) { ret = -ENODEV; goto err; } - if (test_and_set_bit(ret, &atmel_ports_in_use)) { + if (test_and_set_bit(ret, atmel_ports_in_use)) { /* port already in use */ ret = -EBUSY; goto err; @@ -1857,7 +1856,7 @@ static int atmel_serial_remove(struct platform_device *pdev) /* "port" is allocated statically, so we shouldn't free it */ - clear_bit(port->line, &atmel_ports_in_use); + clear_bit(port->line, atmel_ports_in_use); clk_put(atmel_port->clk); diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index ba451c7209fc..f36bbba1ac8b 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -578,6 +578,8 @@ static int xuartps_startup(struct uart_port *port) /* Receive Timeout register is enabled with value of 10 */ xuartps_writel(10, XUARTPS_RXTOUT_OFFSET); + /* Clear out any pending interrupts before enabling them */ + xuartps_writel(xuartps_readl(XUARTPS_ISR_OFFSET), XUARTPS_ISR_OFFSET); /* Set the Interrupt Registers with desired interrupts */ xuartps_writel(XUARTPS_IXR_TXEMPTY | XUARTPS_IXR_PARITY | diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c index e4ca345873c3..d7799deacb21 100644 --- a/drivers/tty/vt/vc_screen.c +++ b/drivers/tty/vt/vc_screen.c @@ -93,7 +93,7 @@ vcs_poll_data_free(struct vcs_poll_data *poll) static struct vcs_poll_data * vcs_poll_data_get(struct file *file) { - struct vcs_poll_data *poll = file->private_data; + struct vcs_poll_data *poll = file->private_data, *kill = NULL; if (poll) return poll; @@ -122,10 +122,12 @@ vcs_poll_data_get(struct file *file) file->private_data = poll; } else { /* someone else raced ahead of us */ - vcs_poll_data_free(poll); + kill = poll; poll = file->private_data; } spin_unlock(&file->f_lock); + if (kill) + vcs_poll_data_free(kill); return poll; } diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 99b34a30354f..f9ec44cbb82f 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -2412,6 +2412,14 @@ int usb_hcd_is_primary_hcd(struct usb_hcd *hcd) } EXPORT_SYMBOL_GPL(usb_hcd_is_primary_hcd); +int usb_hcd_find_raw_port_number(struct usb_hcd *hcd, int port1) +{ + if (!hcd->driver->find_raw_port_number) + return port1; + + return hcd->driver->find_raw_port_number(hcd, port1); +} + static int usb_hcd_request_irqs(struct usb_hcd *hcd, unsigned int irqnum, unsigned long irqflags) { diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c index b6f4bad3f756..255c14464bf2 100644 --- a/drivers/usb/core/usb-acpi.c +++ b/drivers/usb/core/usb-acpi.c @@ -15,6 +15,7 @@ #include <linux/kernel.h> #include <linux/acpi.h> #include <linux/pci.h> +#include <linux/usb/hcd.h> #include <acpi/acpi_bus.h> #include "usb.h" @@ -188,8 +189,13 @@ static int usb_acpi_find_device(struct device *dev, acpi_handle *handle) * connected to. */ if (!udev->parent) { - *handle = acpi_get_child(DEVICE_ACPI_HANDLE(&udev->dev), + struct usb_hcd *hcd = bus_to_hcd(udev->bus); + int raw_port_num; + + raw_port_num = usb_hcd_find_raw_port_number(hcd, port_num); + *handle = acpi_get_child(DEVICE_ACPI_HANDLE(&udev->dev), + raw_port_num); if (!*handle) return -ENODEV; } else { diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 5a0c541daf89..c7525b1cad74 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -145,6 +145,7 @@ config USB_LPC32XX tristate "LPC32XX USB Peripheral Controller" depends on ARCH_LPC32XX select USB_ISP1301 + select USB_OTG_UTILS help This option selects the USB device controller in the LPC32xx SoC. diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index b476daf49f6f..010f686d8881 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -1214,6 +1214,7 @@ itd_urb_transaction ( memset (itd, 0, sizeof *itd); itd->itd_dma = itd_dma; + itd->frame = 9999; /* an invalid value */ list_add (&itd->itd_list, &sched->td_list); } spin_unlock_irqrestore (&ehci->lock, flags); @@ -1915,6 +1916,7 @@ sitd_urb_transaction ( memset (sitd, 0, sizeof *sitd); sitd->sitd_dma = sitd_dma; + sitd->frame = 9999; /* an invalid value */ list_add (&sitd->sitd_list, &iso_sched->td_list); } diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 35616ffbe3ae..6dc238c592bc 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1022,44 +1022,24 @@ void xhci_copy_ep0_dequeue_into_input_ctx(struct xhci_hcd *xhci, * is attached to (or the roothub port its ancestor hub is attached to). All we * know is the index of that port under either the USB 2.0 or the USB 3.0 * roothub, but that doesn't give us the real index into the HW port status - * registers. Scan through the xHCI roothub port array, looking for the Nth - * entry of the correct port speed. Return the port number of that entry. + * registers. Call xhci_find_raw_port_number() to get real index. */ static u32 xhci_find_real_port_number(struct xhci_hcd *xhci, struct usb_device *udev) { struct usb_device *top_dev; - unsigned int num_similar_speed_ports; - unsigned int faked_port_num; - int i; + struct usb_hcd *hcd; + + if (udev->speed == USB_SPEED_SUPER) + hcd = xhci->shared_hcd; + else + hcd = xhci->main_hcd; for (top_dev = udev; top_dev->parent && top_dev->parent->parent; top_dev = top_dev->parent) /* Found device below root hub */; - faked_port_num = top_dev->portnum; - for (i = 0, num_similar_speed_ports = 0; - i < HCS_MAX_PORTS(xhci->hcs_params1); i++) { - u8 port_speed = xhci->port_array[i]; - - /* - * Skip ports that don't have known speeds, or have duplicate - * Extended Capabilities port speed entries. - */ - if (port_speed == 0 || port_speed == DUPLICATE_ENTRY) - continue; - /* - * USB 3.0 ports are always under a USB 3.0 hub. USB 2.0 and - * 1.1 ports are under the USB 2.0 hub. If the port speed - * matches the device speed, it's a similar speed port. - */ - if ((port_speed == 0x03) == (udev->speed == USB_SPEED_SUPER)) - num_similar_speed_ports++; - if (num_similar_speed_ports == faked_port_num) - /* Roothub ports are numbered from 1 to N */ - return i+1; - } - return 0; + return xhci_find_raw_port_number(hcd, top_dev->portnum); } /* Setup an xHCI virtual device for a Set Address command */ diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index af259e0ec172..1a30c380043c 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -313,6 +313,7 @@ static const struct hc_driver xhci_pci_hc_driver = { .set_usb2_hw_lpm = xhci_set_usb2_hardware_lpm, .enable_usb3_lpm_timeout = xhci_enable_usb3_lpm_timeout, .disable_usb3_lpm_timeout = xhci_disable_usb3_lpm_timeout, + .find_raw_port_number = xhci_find_raw_port_number, }; /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 882875465301..1969c001b3f9 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1599,14 +1599,20 @@ static void handle_port_status(struct xhci_hcd *xhci, max_ports = HCS_MAX_PORTS(xhci->hcs_params1); if ((port_id <= 0) || (port_id > max_ports)) { xhci_warn(xhci, "Invalid port id %d\n", port_id); - bogus_port_status = true; - goto cleanup; + inc_deq(xhci, xhci->event_ring); + return; } /* Figure out which usb_hcd this port is attached to: * is it a USB 3.0 port or a USB 2.0/1.1 port? */ major_revision = xhci->port_array[port_id - 1]; + + /* Find the right roothub. */ + hcd = xhci_to_hcd(xhci); + if ((major_revision == 0x03) != (hcd->speed == HCD_USB3)) + hcd = xhci->shared_hcd; + if (major_revision == 0) { xhci_warn(xhci, "Event for port %u not in " "Extended Capabilities, ignoring.\n", @@ -1629,10 +1635,6 @@ static void handle_port_status(struct xhci_hcd *xhci, * into the index into the ports on the correct split roothub, and the * correct bus_state structure. */ - /* Find the right roothub. */ - hcd = xhci_to_hcd(xhci); - if ((major_revision == 0x03) != (hcd->speed == HCD_USB3)) - hcd = xhci->shared_hcd; bus_state = &xhci->bus_state[hcd_index(hcd)]; if (hcd->speed == HCD_USB3) port_array = xhci->usb3_ports; @@ -2027,8 +2029,8 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td, if (event_trb != ep_ring->dequeue && event_trb != td->last_trb) td->urb->actual_length = - td->urb->transfer_buffer_length - - TRB_LEN(le32_to_cpu(event->transfer_len)); + td->urb->transfer_buffer_length - + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); else td->urb->actual_length = 0; @@ -2060,7 +2062,7 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td, /* Maybe the event was for the data stage? */ td->urb->actual_length = td->urb->transfer_buffer_length - - TRB_LEN(le32_to_cpu(event->transfer_len)); + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); xhci_dbg(xhci, "Waiting for status " "stage event\n"); return 0; @@ -2096,7 +2098,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td, /* handle completion code */ switch (trb_comp_code) { case COMP_SUCCESS: - if (TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) { + if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) { frame->status = 0; break; } @@ -2141,7 +2143,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td, len += TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])); } len += TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])) - - TRB_LEN(le32_to_cpu(event->transfer_len)); + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); if (trb_comp_code != COMP_STOP_INVAL) { frame->actual_length = len; @@ -2199,7 +2201,7 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td, case COMP_SUCCESS: /* Double check that the HW transferred everything. */ if (event_trb != td->last_trb || - TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) { + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) { xhci_warn(xhci, "WARN Successful completion " "on short TX\n"); if (td->urb->transfer_flags & URB_SHORT_NOT_OK) @@ -2227,18 +2229,18 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td, "%d bytes untransferred\n", td->urb->ep->desc.bEndpointAddress, td->urb->transfer_buffer_length, - TRB_LEN(le32_to_cpu(event->transfer_len))); + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len))); /* Fast path - was this the last TRB in the TD for this URB? */ if (event_trb == td->last_trb) { - if (TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) { + if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) { td->urb->actual_length = td->urb->transfer_buffer_length - - TRB_LEN(le32_to_cpu(event->transfer_len)); + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); if (td->urb->transfer_buffer_length < td->urb->actual_length) { xhci_warn(xhci, "HC gave bad length " "of %d bytes left\n", - TRB_LEN(le32_to_cpu(event->transfer_len))); + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len))); td->urb->actual_length = 0; if (td->urb->transfer_flags & URB_SHORT_NOT_OK) *status = -EREMOTEIO; @@ -2280,7 +2282,7 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td, if (trb_comp_code != COMP_STOP_INVAL) td->urb->actual_length += TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])) - - TRB_LEN(le32_to_cpu(event->transfer_len)); + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); } return finish_td(xhci, td, event_trb, event, ep, status, false); @@ -2368,7 +2370,7 @@ static int handle_tx_event(struct xhci_hcd *xhci, * transfer type */ case COMP_SUCCESS: - if (TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) + if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) break; if (xhci->quirks & XHCI_TRUST_TX_LENGTH) trb_comp_code = COMP_SHORT_TX; @@ -2461,14 +2463,21 @@ static int handle_tx_event(struct xhci_hcd *xhci, * TD list. */ if (list_empty(&ep_ring->td_list)) { - xhci_warn(xhci, "WARN Event TRB for slot %d ep %d " - "with no TDs queued?\n", - TRB_TO_SLOT_ID(le32_to_cpu(event->flags)), - ep_index); - xhci_dbg(xhci, "Event TRB with TRB type ID %u\n", - (le32_to_cpu(event->flags) & - TRB_TYPE_BITMASK)>>10); - xhci_print_trb_offsets(xhci, (union xhci_trb *) event); + /* + * A stopped endpoint may generate an extra completion + * event if the device was suspended. Don't print + * warnings. + */ + if (!(trb_comp_code == COMP_STOP || + trb_comp_code == COMP_STOP_INVAL)) { + xhci_warn(xhci, "WARN Event TRB for slot %d ep %d with no TDs queued?\n", + TRB_TO_SLOT_ID(le32_to_cpu(event->flags)), + ep_index); + xhci_dbg(xhci, "Event TRB with TRB type ID %u\n", + (le32_to_cpu(event->flags) & + TRB_TYPE_BITMASK)>>10); + xhci_print_trb_offsets(xhci, (union xhci_trb *) event); + } if (ep->skip) { ep->skip = false; xhci_dbg(xhci, "td_list is empty while skip " diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 849470b18831..53b8f89a0b1c 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -3779,6 +3779,28 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) return 0; } +/* + * Transfer the port index into real index in the HW port status + * registers. Caculate offset between the port's PORTSC register + * and port status base. Divide the number of per port register + * to get the real index. The raw port number bases 1. + */ +int xhci_find_raw_port_number(struct usb_hcd *hcd, int port1) +{ + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + __le32 __iomem *base_addr = &xhci->op_regs->port_status_base; + __le32 __iomem *addr; + int raw_port; + + if (hcd->speed != HCD_USB3) + addr = xhci->usb2_ports[port1 - 1]; + else + addr = xhci->usb3_ports[port1 - 1]; + + raw_port = (addr - base_addr)/NUM_PORT_REGS + 1; + return raw_port; +} + #ifdef CONFIG_USB_SUSPEND /* BESL to HIRD Encoding array for USB2 LPM */ diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 2c510e4a7d4c..63582719e0fb 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -972,6 +972,10 @@ struct xhci_transfer_event { __le32 flags; }; +/* Transfer event TRB length bit mask */ +/* bits 0:23 */ +#define EVENT_TRB_LEN(p) ((p) & 0xffffff) + /** Transfer Event bit fields **/ #define TRB_TO_EP_ID(p) (((p) >> 16) & 0x1f) @@ -1829,6 +1833,7 @@ void xhci_test_and_clear_bit(struct xhci_hcd *xhci, __le32 __iomem **port_array, int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength); int xhci_hub_status_data(struct usb_hcd *hcd, char *buf); +int xhci_find_raw_port_number(struct usb_hcd *hcd, int port1); #ifdef CONFIG_PM int xhci_bus_suspend(struct usb_hcd *hcd); diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index 65217a590068..90549382eba5 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -38,6 +38,7 @@ config USB_ISP1301 tristate "NXP ISP1301 USB transceiver support" depends on USB || USB_GADGET depends on I2C + select USB_OTG_UTILS help Say Y here to add support for the NXP ISP1301 USB transceiver driver. This chip is typically used as USB transceiver for USB host, gadget diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index d4809d551473..9886180e45f1 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -640,6 +640,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) }, { USB_DEVICE(ACTON_VID, ACTON_SPECTRAPRO_PID) }, { USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) }, + { USB_DEVICE(MITSUBISHI_VID, MITSUBISHI_FXUSB_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) }, diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index 9d359e189a64..e79861eeed4c 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -584,6 +584,13 @@ #define CONTEC_COM1USBH_PID 0x8311 /* COM-1(USB)H */ /* + * Mitsubishi Electric Corp. (http://www.meau.com) + * Submitted by Konstantin Holoborodko + */ +#define MITSUBISHI_VID 0x06D3 +#define MITSUBISHI_FXUSB_PID 0x0284 /* USB/RS422 converters: FX-USB-AW/-BD */ + +/* * Definitions for B&B Electronics products. */ #define BANDB_VID 0x0856 /* B&B Electronics Vendor ID */ diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 2e70efa08b77..5d9b178484fd 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -903,6 +903,7 @@ static int usb_serial_probe(struct usb_interface *interface, port->port.ops = &serial_port_ops; port->serial = serial; spin_lock_init(&port->lock); + init_waitqueue_head(&port->delta_msr_wait); /* Keep this for private driver use for the moment but should probably go away */ INIT_WORK(&port->work, usb_serial_port_work); diff --git a/drivers/vhost/tcm_vhost.c b/drivers/vhost/tcm_vhost.c index 43fb11ee2e8d..2968b4934659 100644 --- a/drivers/vhost/tcm_vhost.c +++ b/drivers/vhost/tcm_vhost.c @@ -60,6 +60,15 @@ enum { VHOST_SCSI_VQ_IO = 2, }; +/* + * VIRTIO_RING_F_EVENT_IDX seems broken. Not sure the bug is in + * kernel but disabling it helps. + * TODO: debug and remove the workaround. + */ +enum { + VHOST_SCSI_FEATURES = VHOST_FEATURES & (~VIRTIO_RING_F_EVENT_IDX) +}; + #define VHOST_SCSI_MAX_TARGET 256 #define VHOST_SCSI_MAX_VQ 128 @@ -946,7 +955,7 @@ static void vhost_scsi_flush(struct vhost_scsi *vs) static int vhost_scsi_set_features(struct vhost_scsi *vs, u64 features) { - if (features & ~VHOST_FEATURES) + if (features & ~VHOST_SCSI_FEATURES) return -EOPNOTSUPP; mutex_lock(&vs->dev.mutex); @@ -992,7 +1001,7 @@ static long vhost_scsi_ioctl(struct file *f, unsigned int ioctl, return -EFAULT; return 0; case VHOST_GET_FEATURES: - features = VHOST_FEATURES; + features = VHOST_SCSI_FEATURES; if (copy_to_user(featurep, &features, sizeof features)) return -EFAULT; return 0; diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c index 755556ca5b2d..45169cbaba6e 100644 --- a/drivers/video/mxsfb.c +++ b/drivers/video/mxsfb.c @@ -169,6 +169,7 @@ struct mxsfb_info { unsigned dotclk_delay; const struct mxsfb_devdata *devdata; int mapped; + u32 sync; }; #define mxsfb_is_v3(host) (host->devdata->ipversion == 3) @@ -456,9 +457,9 @@ static int mxsfb_set_par(struct fb_info *fb_info) vdctrl0 |= VDCTRL0_HSYNC_ACT_HIGH; if (fb_info->var.sync & FB_SYNC_VERT_HIGH_ACT) vdctrl0 |= VDCTRL0_VSYNC_ACT_HIGH; - if (fb_info->var.sync & FB_SYNC_DATA_ENABLE_HIGH_ACT) + if (host->sync & MXSFB_SYNC_DATA_ENABLE_HIGH_ACT) vdctrl0 |= VDCTRL0_ENABLE_ACT_HIGH; - if (fb_info->var.sync & FB_SYNC_DOTCLK_FAILING_ACT) + if (host->sync & MXSFB_SYNC_DOTCLK_FAILING_ACT) vdctrl0 |= VDCTRL0_DOTCLK_ACT_FAILING; writel(vdctrl0, host->base + LCDC_VDCTRL0); @@ -861,6 +862,8 @@ static int mxsfb_probe(struct platform_device *pdev) INIT_LIST_HEAD(&fb_info->modelist); + host->sync = pdata->sync; + ret = mxsfb_init_fbinfo(host); if (ret != 0) goto error_init_fb; diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c index e31f5b33b501..d40612c31a98 100644 --- a/drivers/video/omap/omapfb_main.c +++ b/drivers/video/omap/omapfb_main.c @@ -32,6 +32,8 @@ #include <linux/omap-dma.h> +#include <mach/hardware.h> + #include "omapfb.h" #include "lcdc.h" diff --git a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c index 6b6643911d29..048c98381ef6 100644 --- a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c +++ b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c @@ -63,6 +63,9 @@ struct tpo_td043_device { u32 power_on_resume:1; }; +/* used to pass spi_device from SPI to DSS portion of the driver */ +static struct tpo_td043_device *g_tpo_td043; + static int tpo_td043_write(struct spi_device *spi, u8 addr, u8 data) { struct spi_message m; @@ -403,7 +406,7 @@ static void tpo_td043_disable(struct omap_dss_device *dssdev) static int tpo_td043_probe(struct omap_dss_device *dssdev) { - struct tpo_td043_device *tpo_td043 = dev_get_drvdata(&dssdev->dev); + struct tpo_td043_device *tpo_td043 = g_tpo_td043; int nreset_gpio = dssdev->reset_gpio; int ret = 0; @@ -440,6 +443,8 @@ static int tpo_td043_probe(struct omap_dss_device *dssdev) if (ret) dev_warn(&dssdev->dev, "failed to create sysfs files\n"); + dev_set_drvdata(&dssdev->dev, tpo_td043); + return 0; fail_gpio_req: @@ -505,6 +510,9 @@ static int tpo_td043_spi_probe(struct spi_device *spi) return -ENODEV; } + if (g_tpo_td043 != NULL) + return -EBUSY; + spi->bits_per_word = 16; spi->mode = SPI_MODE_0; @@ -521,7 +529,7 @@ static int tpo_td043_spi_probe(struct spi_device *spi) tpo_td043->spi = spi; tpo_td043->nreset_gpio = dssdev->reset_gpio; dev_set_drvdata(&spi->dev, tpo_td043); - dev_set_drvdata(&dssdev->dev, tpo_td043); + g_tpo_td043 = tpo_td043; omap_dss_register_driver(&tpo_td043_driver); @@ -534,6 +542,7 @@ static int tpo_td043_spi_remove(struct spi_device *spi) omap_dss_unregister_driver(&tpo_td043_driver); kfree(tpo_td043); + g_tpo_td043 = NULL; return 0; } diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c index d7d66ef5cb58..7f791aeda4d2 100644 --- a/drivers/video/omap2/dss/dss_features.c +++ b/drivers/video/omap2/dss/dss_features.c @@ -202,12 +202,10 @@ static const enum omap_dss_output_id omap3630_dss_supported_outputs[] = { static const enum omap_dss_output_id omap4_dss_supported_outputs[] = { /* OMAP_DSS_CHANNEL_LCD */ - OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI | - OMAP_DSS_OUTPUT_DSI1, + OMAP_DSS_OUTPUT_DBI | OMAP_DSS_OUTPUT_DSI1, /* OMAP_DSS_CHANNEL_DIGIT */ - OMAP_DSS_OUTPUT_VENC | OMAP_DSS_OUTPUT_HDMI | - OMAP_DSS_OUTPUT_DPI, + OMAP_DSS_OUTPUT_VENC | OMAP_DSS_OUTPUT_HDMI, /* OMAP_DSS_CHANNEL_LCD2 */ OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI | diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index 5a32232cf7c1..67af155cf602 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -182,7 +182,7 @@ config XEN_PRIVCMD config XEN_STUB bool "Xen stub drivers" - depends on XEN && X86_64 + depends on XEN && X86_64 && BROKEN default n help Allow kernel to install stub drivers, to reserve space for Xen drivers, diff --git a/drivers/xen/events.c b/drivers/xen/events.c index d17aa41a9041..aa85881d17b2 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -403,11 +403,23 @@ static void unmask_evtchn(int port) if (unlikely((cpu != cpu_from_evtchn(port)))) do_hypercall = 1; - else + else { + /* + * Need to clear the mask before checking pending to + * avoid a race with an event becoming pending. + * + * EVTCHNOP_unmask will only trigger an upcall if the + * mask bit was set, so if a hypercall is needed + * remask the event. + */ + sync_clear_bit(port, BM(&s->evtchn_mask[0])); evtchn_pending = sync_test_bit(port, BM(&s->evtchn_pending[0])); - if (unlikely(evtchn_pending && xen_hvm_domain())) - do_hypercall = 1; + if (unlikely(evtchn_pending && xen_hvm_domain())) { + sync_set_bit(port, BM(&s->evtchn_mask[0])); + do_hypercall = 1; + } + } /* Slow path (hypercall) if this is a non-local port or if this is * an hvm domain and an event is pending (hvm domains don't have @@ -418,8 +430,6 @@ static void unmask_evtchn(int port) } else { struct vcpu_info *vcpu_info = __this_cpu_read(xen_vcpu); - sync_clear_bit(port, BM(&s->evtchn_mask[0])); - /* * The following is basically the equivalent of * 'hw_resend_irq'. Just like a real IO-APIC we 'lose diff --git a/drivers/xen/fallback.c b/drivers/xen/fallback.c index 0ef7c4d40f86..b04fb64c5a91 100644 --- a/drivers/xen/fallback.c +++ b/drivers/xen/fallback.c @@ -44,7 +44,7 @@ int xen_event_channel_op_compat(int cmd, void *arg) } EXPORT_SYMBOL_GPL(xen_event_channel_op_compat); -int HYPERVISOR_physdev_op_compat(int cmd, void *arg) +int xen_physdev_op_compat(int cmd, void *arg) { struct physdev_op op; int rc; @@ -78,3 +78,4 @@ int HYPERVISOR_physdev_op_compat(int cmd, void *arg) return rc; } +EXPORT_SYMBOL_GPL(xen_physdev_op_compat); diff --git a/drivers/xen/xen-acpi-processor.c b/drivers/xen/xen-acpi-processor.c index f3278a6603ca..90e34ac7e522 100644 --- a/drivers/xen/xen-acpi-processor.c +++ b/drivers/xen/xen-acpi-processor.c @@ -505,6 +505,9 @@ static int __init xen_acpi_processor_init(void) pr = per_cpu(processors, i); perf = per_cpu_ptr(acpi_perf_data, i); + if (!pr) + continue; + pr->performance = perf; rc = acpi_processor_get_performance_info(pr); if (rc) diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c index 9204126f1560..a2278ba7fb27 100644 --- a/drivers/xen/xen-pciback/pci_stub.c +++ b/drivers/xen/xen-pciback/pci_stub.c @@ -17,6 +17,7 @@ #include <xen/events.h> #include <asm/xen/pci.h> #include <asm/xen/hypervisor.h> +#include <xen/interface/physdev.h> #include "pciback.h" #include "conf_space.h" #include "conf_space_quirks.h" @@ -85,37 +86,52 @@ static struct pcistub_device *pcistub_device_alloc(struct pci_dev *dev) static void pcistub_device_release(struct kref *kref) { struct pcistub_device *psdev; + struct pci_dev *dev; struct xen_pcibk_dev_data *dev_data; psdev = container_of(kref, struct pcistub_device, kref); - dev_data = pci_get_drvdata(psdev->dev); + dev = psdev->dev; + dev_data = pci_get_drvdata(dev); - dev_dbg(&psdev->dev->dev, "pcistub_device_release\n"); + dev_dbg(&dev->dev, "pcistub_device_release\n"); - xen_unregister_device_domain_owner(psdev->dev); + xen_unregister_device_domain_owner(dev); /* Call the reset function which does not take lock as this * is called from "unbind" which takes a device_lock mutex. */ - __pci_reset_function_locked(psdev->dev); - if (pci_load_and_free_saved_state(psdev->dev, - &dev_data->pci_saved_state)) { - dev_dbg(&psdev->dev->dev, "Could not reload PCI state\n"); - } else - pci_restore_state(psdev->dev); + __pci_reset_function_locked(dev); + if (pci_load_and_free_saved_state(dev, &dev_data->pci_saved_state)) + dev_dbg(&dev->dev, "Could not reload PCI state\n"); + else + pci_restore_state(dev); + + if (pci_find_capability(dev, PCI_CAP_ID_MSIX)) { + struct physdev_pci_device ppdev = { + .seg = pci_domain_nr(dev->bus), + .bus = dev->bus->number, + .devfn = dev->devfn + }; + int err = HYPERVISOR_physdev_op(PHYSDEVOP_release_msix, + &ppdev); + + if (err) + dev_warn(&dev->dev, "MSI-X release failed (%d)\n", + err); + } /* Disable the device */ - xen_pcibk_reset_device(psdev->dev); + xen_pcibk_reset_device(dev); kfree(dev_data); - pci_set_drvdata(psdev->dev, NULL); + pci_set_drvdata(dev, NULL); /* Clean-up the device */ - xen_pcibk_config_free_dyn_fields(psdev->dev); - xen_pcibk_config_free_dev(psdev->dev); + xen_pcibk_config_free_dyn_fields(dev); + xen_pcibk_config_free_dev(dev); - psdev->dev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED; - pci_dev_put(psdev->dev); + dev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED; + pci_dev_put(dev); kfree(psdev); } @@ -355,6 +371,19 @@ static int pcistub_init_device(struct pci_dev *dev) if (err) goto config_release; + if (pci_find_capability(dev, PCI_CAP_ID_MSIX)) { + struct physdev_pci_device ppdev = { + .seg = pci_domain_nr(dev->bus), + .bus = dev->bus->number, + .devfn = dev->devfn + }; + + err = HYPERVISOR_physdev_op(PHYSDEVOP_prepare_msix, &ppdev); + if (err) + dev_err(&dev->dev, "MSI-X preparation failed (%d)\n", + err); + } + /* We need the device active to save the state. */ dev_dbg(&dev->dev, "save state of device\n"); pci_save_state(dev); |