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* pcmcia: add missing include for new pci resource handlerArnd Bergmann2015-01-131-0/+1
| | | | | | | | | | | | | | | | | The recently added rsrc_pci.c file calls pci_bus_alloc_resource without including the header file that declares it, and that sometimes causes a build warning on ARM: drivers/pcmcia/rsrc_pci.c: In function 'find_io_region': drivers/pcmcia/rsrc_pci.c:40:2: error: implicit declaration of function 'pci_bus_alloc_resource' [-Werror=implicit-function-declaration] This adds the missing include statement. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 02b03846bb2be ("pcmcia: add a new resource manager for non ISA systems") Acked-by: Alan Cox <alan@linux.intel.com> Reported-by: Jim Davis <jim.epost@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* coresight: fixing validity check on remote deviceKaixu Xia2015-01-121-1/+1
| | | | | | | | | A validity check should be made on the remote device, i.e rdev, rather than the current device. Signed-off-by: Kaixu Xia <xiakaixu@huawei.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* coresight: fix comment in of_coresight.cKaixu Xia2015-01-121-1/+1
| | | | | | | | | Outports is a member of the struct pdata and should be a better choice. Signed-off-by: Kaixu Xia <xiakaixu@huawei.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* coresight: fix typo in comment in of_coresight.cKaixu Xia2015-01-121-1/+1
| | | | | | | | | Debugfs isn't used for coresight configuration, so the corresponding comments should be changed. Signed-off-by: Kaixu Xia <xiakaixu@huawei.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* coresight-etm: Fix initial trace ID valueMathieu Poirier2015-01-121-1/+5
| | | | | | | | The coresight TRM specify that a component's trace ID should be other than 0. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* coresight-tpiu: use module_amba_driver to simplify the codeWei Yongjun2015-01-121-11/+1
| | | | | | | | | module_amba_driver() makes the code simpler by eliminating boilerplate code. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* coresight-tmc: use module_amba_driver to simplify the codeWei Yongjun2015-01-121-11/+1
| | | | | | | | | module_amba_driver() makes the code simpler by eliminating boilerplate code. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* coresight-funnel: use module_amba_driver to simplify the codeWei Yongjun2015-01-121-11/+1
| | | | | | | | | module_amba_driver() makes the code simpler by eliminating boilerplate code. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* coresight-etb: use module_amba_driver to simplify the codeWei Yongjun2015-01-121-11/+1
| | | | | | | | | module_amba_driver() makes the code simpler by eliminating boilerplate code. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* coresight-etm: unlock on error paths in mode_store()Dan Carpenter2015-01-121-2/+8
| | | | | | | | | There are some missing unlocks on the error paths. Fixes: a939fc5a71ad ('coresight-etm: add CoreSight ETM/PTM driver') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* uio: uio_fsl_elbc_gpcm: new driverJohn Ogness2015-01-123-0/+520
| | | | | | | | | This driver provides UIO access to memory of a peripheral connected to the Freescale enhanced local bus controller (eLBC) interface using the general purpose chip-select mode (GPCM). Signed-off-by: John Ogness <john.ogness@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pcmcia: add a new resource manager for non ISA systemsAlan Cox2015-01-123-3/+182
| | | | | | | | | On a pure PCI platform we don't actually need all the complexity of the rsrc_nonstatic manager, in fact we can just work directly with the pci allocators and avoid all the complexity (and code bloat). Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pcmcia: handle anonymous cards by generating a fake CISAlan Cox2015-01-121-4/+20
| | | | | | | | | | | | | The core pcmcia code blows up all over the place if it allowed a card without a valid CIS. We need to allow such cards as the CIS stuff is not on the older flash, ROM and SRAM cards. In order to minimise the risk of misidentifying junk and feeding it to the wrong thing we only fix up apparently anonymous cards if the driver for them has been enabled. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pcmcia: Fix requeryAlan Cox2015-01-122-1/+4
| | | | | | | | | | The requery logic goes off and attempts to read the CIS of empty slots. In most cases this happens not to do any harm - but not all! Add the missing check and also a WARN() to catch any other offenders. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pcmcia cis: on an out of range CIS read return 0xff, don't just warnAlan Cox2015-01-121-1/+4
| | | | | | | | | The current code displays warnings but then proceeds to try and reference the data through the PCMCIA window. Instead return 0xff. This prevents bogus CIS data sending us off into hyperspace. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pcmcia: correct typesAlan Cox2015-01-122-5/+6
| | | | | | | | We should be using resource_size_t and unsigned types correctly, otherwise we sign extend the flags on a 64bit box, which is not what we want. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* uio/uio_pci_generic: don't return zero on failure path in probe()Alexey Khoroshilov2015-01-121-1/+2
| | | | | | | | | | | | | If uio_register_device() fails in probe(), it breaks off initialization, deallocates all resources, but returns zero. The patch adds proper error code propagation. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* vme: fix misspelling of current function in stringJulia Lawall2015-01-121-1/+1
| | | | | | | | | | | | | Replace a misspelled function name by %s and then __func__. This is the get function, not the set function, as was indicated by the string. This was done using Coccinelle, including the use of Levenshtein distance, as proposed by Rasmus Villemoes. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ad525x_dpot-spi: Added Blank lines after declarationsMohammad Jamal2015-01-121-0/+4
| | | | | | | This patch solves the blank line warning of checkpatch.pl Signed-off-by: Mohammad Jamal <md.jamalmohiuddin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ad525x_dpot:Remove break after returnMohammad Jamal2015-01-121-6/+0
| | | | | | | This patch removes the break statements present after return Signed-off-by: Mohammad Jamal <md.jamalmohiuddin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ad525x_dpot: Add a blank line after declarationMohammad Jamal2015-01-121-0/+1
| | | | | | | Added a blank line after declaration to fix the warning of checkpatch.pl Signed-off-by: Mohammad Jamal <md.jamalmohiuddin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* GenWQE: remove unnecessary version.h inclusionFabian Frederick2015-01-122-2/+0
| | | | | | | Based on versioncheck. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers: char: mem: Fix Missing blank line issuesRob Ward2015-01-121-0/+2
| | | | | | | | | | Fixes "Missing a blank line after declarations" reported by checkpatch. This patch introduces no functional changes. Signed-off-by: Rob Ward <robert.ward114@googlemail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers: char: mem: Replace usage of asm includeRob Ward2015-01-121-1/+1
| | | | | | | Replaces the use of asm/uaccess.h with linux/uaccess.h. Signed-off-by: Rob Ward <robert.ward114@googlemail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers: char: mem: Simplify DEVPORT configurationRob Ward2015-01-121-5/+1
| | | | | | | | | | | | | | | Simplify the use of CONFIG_DEVPORT by making the port_fops so that it includes __maybe_unused. This enabled the multiple #ifdef's used for this structure to be removed and brings it in line with the use of CONFIG_DEVMEM This change should introduce no functional changes. Signed-off-by: Rob Ward <robert.ward114@googlemail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers: char: mem: Simplify DEVKMEM configurationRob Ward2015-01-121-7/+1
| | | | | | | | | | | | | | | Simplify the use of CONFIG_DEVKMEM by making the kmem_fops so that it is __maybe_unused. This enabled the multiple #ifdef's used for this structure to be removed and brings it in line with the use of CONFIG_DEVMEM This change should introduce no functional changes. Signed-off-by: Rob Ward <robert.ward114@googlemail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers: char: mem: Make /dev/mem an optional deviceRob Ward2015-01-122-1/+12
| | | | | | | | | | | | Adds Kconfig option CONFIG_DEVMEM that allows the /dev/mem device to be disabled. Option defaults to /dev/mem enabled. Signed-off-by: Rob Ward <robert.ward114@googlemail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* misc: ioc4: simplify wave period measurement in clock_calibrateRichard Leitner2015-01-121-15/+16
| | | | | | | | | | | | | | | | | | | | | The loop for measuring the square wave periods over some cycles is refactored to be more easily readable. This includes avoiding a "by-hand-implemented" for loop with a "real" one and adding some comments. Furthermore the following compiler warning is avoided by this patch: drivers/misc/ioc4.c: In function ‘ioc4_probe’: drivers/misc/ioc4.c:194:16: warning: ‘start’ may be used uninitialized in this function [-Wmaybe-uninitialized] period = (end - start) / ^ drivers/misc/ioc4.c:148:11: note: ‘start’ was declared here uint64_t start, end, period; ^ Signed-off-by: Richard Leitner <dev@g0hl1n.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers:misc:ti-st: protect against bad packetsGigi Joseph2015-01-121-6/+18
| | | | | | | | | | | | | We encounter situations where we got bad packet type from the UART (probably due to platform problem or UART driver issues) which caused us out of boundary array access, which eventually led to kernel panic. Signed-off-by: Amir Ayun <amira@ti.com> Signed-off-by: Pavan Savoy <pavan_savoy@ti.com> Signed-off-by: Leonid Iziumtsev <x0153368@ti.com> Signed-off-by: Gigi Joseph <gigi.joseph@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers: misc: ti-st: fix null pointer exception in st_kim_ref()Gigi Joseph2015-01-121-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | st_kim_ref() does not take care of the fact that platform_get_drvdata() might return NULL. On AM437x EVM, this causes the platform to stop booting as soon as the module is inserted. This patch fixes the issue by checking for NULL return value. Oops log follows. I have not tested BT functionality after this patch. But at least the platform boots now. [ 12.675697] Unable to handle kernel NULL pointer dereference at virtual address 0000005c [ 12.684310] pgd = c0004000 [ 12.687157] [0000005c] *pgd=00000000 [ 12.690927] Internal error: Oops: 17 [#1] SMP ARM [ 12.695873] Modules linked in: btwilink bluetooth ti_vpfe dwc3(+) ov2659 videobuf2_core v4l2_common videodev ti_am335x_adc 6lowpan_iphc matrix_keypad panel_dpi kfifo_buf pixcir_i2c_ts media industrialio videobuf2_dma_contig c_can_platform videobuf2_memops dwc3_omap c_can can_dev [ 12.721969] CPU: 0 PID: 1235 Comm: kworker/u3:0 Not tainted 3.14.25-02445-g9036ac6daed6 #128 [ 12.730937] Workqueue: hci0 hci_power_on [bluetooth] [ 12.736165] task: ebd93b40 ti: ecd7c000 task.ti: ecd7c000 [ 12.741856] PC is at st_kim_ref+0x30/0x40 [ 12.746071] LR is at st_kim_ref+0x30/0x40 [ 12.750289] pc : [<c03caf58>] lr : [<c03caf58>] psr: a0000013 [ 12.750289] sp : ecd7de08 ip : ecd7de08 fp : ecd7de1c [ 12.762365] r10: bf1e710c r9 : bf1e70ec r8 : bf1e7964 [ 12.767858] r7 : ebd2fd50 r6 : bf1e7964 r5 : 00000000 r4 : ecd7de24 [ 12.774723] r3 : c0957208 r2 : 00000000 r1 : c0957208 r0 : 00000000 [ 12.781589] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel [ 12.789274] Control: 10c5387d Table: abde4059 DAC: 00000015 [ 12.795315] Process kworker/u3:0 (pid: 1235, stack limit = 0xecd7c248) Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Gigi Joseph <gigi.joseph@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers: misc: ti-st: fix debugfs creation error handlingGigi Joseph2015-01-121-5/+1
| | | | | | | | | | In case the debugfs creation fails the whole init process was failing. There is no need to do this as the shared transport can work without it. Fix it so it just reports the failure and continue. Signed-off-by: Eyal Reizer <eyalr@ti.com> Signed-off-by: Gigi Joseph <gigi.joseph@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* st_kim: allow suspend if callback is not registeredGigi Joseph2015-01-121-2/+2
| | | | | | | | | | Suspend/resume was failing if callbacks were not registered. As it is ok not to do anything when suspending fix this so it soen't return an error and allow the system to suspend. Signed-off-by: Eyal Reizer <eyalr@ti.com> Signed-off-by: Gigi Joseph <gigi.joseph@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ti-st: add device tree supportGigi Joseph2015-01-122-10/+104
| | | | | | | | | | | | | | When using device tree, driver configuration data need to be read from device node. Add support for getting the platform data information from the device tree information stored in the .dtb file in case it exists. Signed-off-by: Eyal Reizer <eyalr@ti.com> Signed-off-by: bvijay <bvijay@ti.com> Diff rendering mode:inlineside by side Signed-off-by: Gigi Joseph <gigi.joseph@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mei: use uuid, me_addr tuple addressing also for flow control creditsTomas Winkler2015-01-121-2/+2
| | | | | | | | | | | | Add uuid, me_addr addressing also for flow control credits. The only exception in cases for single buffer clients for which the host address in flow credits response is always 0 To in order to deal with add/remove race between fw and driver clients addressing we need to use [uuid, me_addr] tuple to address the clients Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mei: bus: use ssize_t as the return type for send and receiveTomas Winkler2015-01-122-19/+17
| | | | | | | | | Mei bus receive and send function may return either number of transmitted bytes or errno. It is better to use ssize_t type for that purpose that mixing size_t with int. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Drivers: hv: vmbus: Use get_cpu() to get the current CPUK. Y. Srinivasan2015-01-122-3/+7
| | | | | | | | | Replace calls for smp_processor_id() to get_cpu() to get the CPU ID of the current CPU. In these instances, there is no correctness issue with regards to preemption, we just need the current CPU ID. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2014-12-281-1/+1
|\ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs fix from Al Viro: "An embarrassing bug in lustre patches from this cycle ;-/" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: [regression] braino in "lustre: use is_root_inode()"
| * [regression] braino in "lustre: use is_root_inode()"Al Viro2014-12-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | In one of the places (ll_md_blocking_ast()) we had open-coded !is_root_inode(inode) and replaced it with is_root_inode(inode). See the last chunk of f76c23: - inode != inode->i_sb->s_root->d_inode) + is_root_inode(inode)) should've been + !is_root_inode(inode)) obviously... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds2014-12-2545-214/+446
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull drm fixes from Dave Airlie: "Xmas fixes pull: core: one atomic fix, revert the WARN_ON dumb buffers patch. agp: fixup Dave J. nouveau: fix 3.18 regression for old userspace tegra fixes: vblank and iommu fixes amdkfd: fix bugs shown by testing with userspace, init apertures once msm: hdmi fixes and cleanup i915: misc fixes There is also a link ordering fix that I've asked to be cc'ed to you, putting iommu before gpu, it fixes an issue with amdkfd when things are all in the kernel, but I didn't like sending it via my tree without discussion. I'll probably be a bit on/off for a few weeks with pulls now, due to holidays and LCA, so don't be surprised if stuff gets a bit backed up, and things end up a bit large due to lag" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (28 commits) Revert "drm/gem: Warn on illegal use of the dumb buffer interface v2" agp: Fix up email address & attributions in AGP MODULE_AUTHOR tags nouveau: bring back legacy mmap handler drm/msm/hdmi: rework HDMI IRQ handler drm/msm/hdmi: enable regulators before clocks to avoid warnings drm/msm/mdp5: update irqs on crtc<->encoder link change drm/msm: block incoming update on pending updates drm/atomic: fix potential null ptr on plane enable drm/msm: Deletion of unnecessary checks before the function call "release_firmware" drm/msm: Deletion of unnecessary checks before two function calls drm/tegra: dc: Select root window for event dispatch drm/tegra: gem: Use the proper size for GEM objects drm/tegra: gem: Flush buffer objects upon allocation drm/tegra: dc: Fix a potential race on page-flip completion drm/tegra: dc: Consistently use the same pipe drm/irq: Add drm_crtc_vblank_count() drm/irq: Add drm_crtc_handle_vblank() drm/irq: Add drm_crtc_send_vblank_event() drm/i915: Disable PSMI sleep messages on all rings around context switches drm/i915: Force the CS stall for invalidate flushes ...
| * | Revert "drm/gem: Warn on illegal use of the dumb buffer interface v2"Dave Airlie2014-12-248-67/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 355a70183848f21198e9f6296bd646df3478a26d. This had some bad side effects under normal operation, and should have been dropped earlier. Signed-off-by: Dave Airlie <airlied@redhat.com>
| * | Merge tag 'amdkfd-fixes-2014-12-23' of ↵Dave Airlie2014-12-246-10/+85
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://people.freedesktop.org/~gabbayo/linux into drm-fixes - Display MEC fw version in topology. Without this, the HSA userspace stack is broken. - Init apertures information only once per process * tag 'amdkfd-fixes-2014-12-23' of git://people.freedesktop.org/~gabbayo/linux: amdkfd: init aperture once per process amdkfd: Display MEC fw version in topology node drm/radeon: Add implementation of get_fw_version drm/amd: Add get_fw_version to kfd-->kgd interface
| | * | amdkfd: init aperture once per processAlexey Skidanov2014-11-183-8/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the user space may call open() more that once from the same process, the aperture initialization should be moved from kfd_open() Signed-off-by: Alexey Skidanov <Alexey.Skidanov@amd.com> Reviewed-by: Oded Gabbay <oded.gabbay@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
| | * | amdkfd: Display MEC fw version in topology nodeOded Gabbay2014-11-091-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch displays the firmware version of the microcode that is currently running in the MEC. This is needed for the HSA RT, so it could differentiate its behavior based on fw version. e.g. workarounds for bugs in fw v2: Send the KGD_ENGINE_MEC1 as a parameter to the get_fw_version() Signed-off-by: Oded Gabbay <oded.gabbay@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
| | * | drm/radeon: Add implementation of get_fw_versionOded Gabbay2014-11-091-0/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements a new interface that was added to the kfd-->kgd interface. The new interface function retrieves the firmware version that is currently in use by a specific engine. The firmware was uploaded to the engine by the radeon driver. v2: Returns the fw version of the specific engine, as passed into the function by a new parameter Signed-off-by: Oded Gabbay <oded.gabbay@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
| | * | drm/amd: Add get_fw_version to kfd-->kgd interfaceOded Gabbay2014-11-091-0/+15
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a new interface to the kfd-->kgd interface. The new interface function retrieves the firmware version that is currently in use by the MEC engine. The firmware was uploaded to the MEC engine by the kgd (radeon). v2: Added parameter of engine type to interface function Signed-off-by: Oded Gabbay <oded.gabbay@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
| * | agp: Fix up email address & attributions in AGP MODULE_AUTHOR tagsDave Jones2014-12-238-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Remove soon-to-be-dead @redhat address. - Jeff Hartmann wrote the bulk of the original backend code, and should at least get a mention in the MODULE_AUTHOR for backend.o - Various people at Intel have done a lot more work than myself on the intel-* drivers, so again, mention that. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
| * | Merge tag 'drm/tegra/for-3.19-rc1-fixes' of ↵Dave Airlie2014-12-234-30/+146
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://people.freedesktop.org/~tagr/linux into drm-fixes drm/tegra: Fixes for v3.19-rc1 This is a set of fixes for two regressions and one bug in the IOMMU mapping code. It turns out that all of these issues turn up primarily on Tegra30 hardware. The IOMMU mapping bug only manifests on buffers that aren't multiples of the page size. I happened to be testing HDMI with 1080p while writing the code and framebuffers for that happen to fit exactly within 2025 pages of 4 KiB each. One of the regressions is caused by the IOMMU code allocating pages from shmem which can have associated cache lines. If the pages aren't flushed then these cache lines may be flushed later on and cause framebuffer corruption. I'm not sure why I didn't see this before. Perhaps the board that I was using had enough RAM so that the pages shmem would hand out had a better chance of being unused. Or maybe I didn't look too closely. The fix for this is to fake up an SG table so that it can be passed to the DMA API. Ideally this would use drm_clflush_*(), but implementing that for ARM causes DRM to fail to build as a module since some of the low-level cache maintenance functions aren't exported. Hopefully we can get a suitable API exported on ARM for the next release. The second regression is caused by a mismatch between the hardware pipe number and the CRTC's DRM index. These were used inconsistently, which could cause one code location to call drm_vblank_get() with a different pipe than the corresponding drm_vblank_put(), thereby causing the reference count to become unbalanced. Alexandre also reported a possible race condition related to this, which this series also fixes. * tag 'drm/tegra/for-3.19-rc1-fixes' of git://people.freedesktop.org/~tagr/linux: drm/tegra: dc: Select root window for event dispatch drm/tegra: gem: Use the proper size for GEM objects drm/tegra: gem: Flush buffer objects upon allocation drm/tegra: dc: Fix a potential race on page-flip completion drm/tegra: dc: Consistently use the same pipe drm/irq: Add drm_crtc_vblank_count() drm/irq: Add drm_crtc_handle_vblank() drm/irq: Add drm_crtc_send_vblank_event()
| | * | drm/tegra: dc: Select root window for event dispatchSean Paul2014-12-171-2/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In finish pageflip, the driver was not selecting the root window when dispatching events. This exposed a race where a plane update would change the window selection and cause tegra_dc_finish_page_flip to check the wrong base address. This patch also protects access to the window selection register as well as the registers affected by it. Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
| | * | drm/tegra: gem: Use the proper size for GEM objectsThierry Reding2014-12-171-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the requested buffer size wasn't a multiple of the page size, the IOMMU code would round down the size to the next multiple of the page size, thereby causing translation errors. To fix this we no longer pass around the requested size but reuse the computed size of the GEM object. This is already rounded to the next page boundary, so mapping that size works out fine. Signed-off-by: Thierry Reding <treding@nvidia.com>
| | * | drm/tegra: gem: Flush buffer objects upon allocationThierry Reding2014-12-171-4/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Buffers obtained via shmem may still have associated cachelines. If they aren't properly flushed they may cause framebuffer corruption if the cache gets flushed after the application has drawn to it. Signed-off-by: Thierry Reding <treding@nvidia.com>
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