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* Merge branch 'for-3.15-fixes' of ↵Linus Torvalds2014-04-247-37/+59
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata fixes from Tejun Heo: "Dan updated tag allocation to accomodate devices which choke when tags jump back and forth. Quite a few ahci MSI related fixes. A couple config dependency fixes and other misc fixes" * 'for-3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: libata/ahci: accommodate tag ordered controllers ahci: Do not receive interrupts sent by dummy ports ahci: Use pci_enable_msi_exact() instead of pci_enable_msi_range() ahci: Ensure "MSI Revert to Single Message" mode is not enforced ahci: do not request irq for dummy port pata_samsung_cf: fix ata_host_activate() failure handling pata_arasan_cf: fix ata_host_activate() failure handling ata: fix i.MX AHCI driver dependencies pata_at91: fix ata_host_activate() failure handling libata: Update queued trim blacklist for M5x0 drives libata: make AHCI_XGENE depend on PHY_XGENE
| * libata/ahci: accommodate tag ordered controllersDan Williams2014-04-181-8/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The AHCI spec allows implementations to issue commands in tag order rather than FIFO order: 5.3.2.12 P:SelectCmd HBA sets pSlotLoc = (pSlotLoc + 1) mod (CAP.NCS + 1) or HBA selects the command to issue that has had the PxCI bit set to '1' longer than any other command pending to be issued. The result is that commands posted sequentially (time-wise) may play out of sequence when issued by hardware. This behavior has likely been hidden by drives that arrange for commands to complete in issue order. However, it appears recent drives (two from different vendors that we have found so far) inflict out-of-order completions as a matter of course. So, we need to take care to maintain ordered submission, otherwise we risk triggering a drive to fall out of sequential-io automation and back to random-io processing, which incurs large latency and degrades throughput. This issue was found in simple benchmarks where QD=2 seq-write performance was 30-50% *greater* than QD=32 seq-write performance. Tagging for -stable and making the change globally since it has a low risk-to-reward ratio. Also, word is that recent versions of an unnamed OS also does it this way now. So, drives in the field are already experienced with this tag ordering scheme. Cc: <stable@vger.kernel.org> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Ed Ciechanowski <ed.ciechanowski@intel.com> Reviewed-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ahci: Do not receive interrupts sent by dummy portsAlexander Gordeev2014-04-181-6/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In multiple MSI mode all AHCI ports (including dummy) get assigned separate MSI vectors and (as result of execution pci_enable_msi_exact() function) separate IRQ numbers, (mapped to the MSI vectors). Therefore, although interrupts from dummy ports are not desired they are still enabled. We do not request IRQs for dummy ports, but that only means we do not assign AHCI-specific ISRs to corresponding IRQ numbers. As result, dummy port interrupts still could come and traverse all the way from the PCI device to the kernel, causing unnecessary overhead. This update disables IRQs for dummy ports and prevents the described issue. Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org> Tested-by: David Milburn <dmilburn@redhat.com> Cc: linux-ide@vger.kernel.org Cc: stable@vger.kernel.org Fixes: 5ca72c4f7c41 ("AHCI: Support multiple MSIs")
| * ahci: Use pci_enable_msi_exact() instead of pci_enable_msi_range()Alexander Gordeev2014-04-171-4/+4
| | | | | | | | | | | | | | | | | | The driver calls pci_enable_msi_range() function with the range of [nvec..nvec] which is what pci_enable_msi_exact() function is for. Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Cc: linux-ide@vger.kernel.org Signed-off-by: Tejun Heo <tj@kernel.org>
| * ahci: Ensure "MSI Revert to Single Message" mode is not enforcedAlexander Gordeev2014-04-172-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The AHCI specification allows hardware to choose to revert to single MSI mode when fewer messages are allocated than requested. Yet, at least ICH10 chipset reverts to single MSI mode even when enough messages are allocated in some cases (see below). This update forces the driver to not rely on initialization of multiple MSIs mode alone and always check if "MSI Revert to Single Message" (MRSM) mode was enforced by the controller and fallback to the single MSI mode in case it did. That prevents a situation when the driver configured multiple per-port IRQ handlers, but the controller sends all port's interrupts to a single IRQ, which could easily screw up the interrupt handling and lead to delays and possibly crashes. The fix was tested on a 6-port controller that successfully reverted to the single MSI mode: 00:1f.2 SATA controller: Intel Corporation 82801JI (ICH10 Family) SATA AHCI Controller (prog-if 01 [AHCI 1.0]) Subsystem: Super Micro Computer Inc Device 10a7 Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 101 I/O ports at f110 [size=8] I/O ports at f100 [size=4] I/O ports at f0f0 [size=8] I/O ports at f0e0 [size=4] I/O ports at f020 [size=32] Memory at fbf00000 (32-bit, non-prefetchable) [size=2K] Capabilities: [80] MSI: Enable+ Count=1/16 Maskable- 64bit- Capabilities: [70] Power Management version 3 Capabilities: [a8] SATA HBA v1.0 Capabilities: [b0] PCI Advanced Features Kernel driver in use: ahci With 6 ports just 8 MSI vectors should be enough, but the adapter enforces the MRSM mode when less than 16 vectors are written to the Multiple Messages Enable PCI register. I instigated MRSM mode by forcing @nvec to 8 in ahci_init_interrupts(). Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Cc: linux-ide@vger.kernel.org Cc: stable@vger.kernel.org Signed-off-by: Tejun Heo <tj@kernel.org>
| * ahci: do not request irq for dummy portDavid Milburn2014-04-161-8/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | System may crash in ahci_hw_interrupt() or ahci_thread_fn() when accessing the interrupt status in a port's private_data if the port is actually a DUMMY port. 00:1f.2 SATA controller: Intel Corporation 82801JI (ICH10 Family) SATA AHCI Controller <snip console output for linux-3.15-rc1> [ 9.352080] ahci 0000:00:1f.2: AHCI 0001.0200 32 slots 6 ports 3 Gbps 0x1 impl SATA mode [ 9.352084] ahci 0000:00:1f.2: flags: 64bit ncq sntf pm led clo pio slum part ccc [ 9.368155] Console: switching to colour frame buffer device 128x48 [ 9.439759] mgag200 0000:11:00.0: fb0: mgadrmfb frame buffer device [ 9.446765] mgag200 0000:11:00.0: registered panic notifier [ 9.470166] scsi1 : ahci [ 9.479166] scsi2 : ahci [ 9.488172] scsi3 : ahci [ 9.497174] scsi4 : ahci [ 9.506175] scsi5 : ahci [ 9.515174] scsi6 : ahci [ 9.518181] ata1: SATA max UDMA/133 abar m2048@0x95c00000 port 0x95c00100 irq 91 [ 9.526448] ata2: DUMMY [ 9.529182] ata3: DUMMY [ 9.531916] ata4: DUMMY [ 9.534650] ata5: DUMMY [ 9.537382] ata6: DUMMY [ 9.576196] [drm] Initialized mgag200 1.0.0 20110418 for 0000:11:00.0 on minor 0 [ 9.845257] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 9.865161] ata1.00: ATAPI: Optiarc DVD RW AD-7580S, FX04, max UDMA/100 [ 9.891407] ata1.00: configured for UDMA/100 [ 9.900525] scsi 1:0:0:0: CD-ROM Optiarc DVD RW AD-7580S FX04 PQ: 0 ANSI: 5 [ 10.247399] iTCO_vendor_support: vendor-support=0 [ 10.261572] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11 [ 10.269764] iTCO_wdt: unable to reset NO_REBOOT flag, device disabled by hardware/BIOS [ 10.301932] sd 0:2:0:0: [sda] 570310656 512-byte logical blocks: (291 GB/271 GiB) [ 10.317085] sd 0:2:0:0: [sda] Write Protect is off [ 10.328326] sd 0:2:0:0: [sda] Write cache: disabled, read cache: disabled, supports DPO and FUA [ 10.375452] BUG: unable to handle kernel NULL pointer dereference at 000000000000003c [ 10.384217] IP: [<ffffffffa0133df0>] ahci_hw_interrupt+0x100/0x130 [libahci] [ 10.392101] PGD 0 [ 10.394353] Oops: 0000 [#1] SMP [ 10.397978] Modules linked in: sr_mod(+) cdrom sd_mod iTCO_wdt crc_t10dif iTCO_vendor_support crct10dif_common ahci libahci libata lpc_ich mfd_core mgag200 syscopyarea sysfillrect sysimgblt i2c_algo_bit drm_kms_helper ttm drm i2c_core megaraid_sas dm_mirror dm_region_hash dm_log dm_mod [ 10.426499] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.15.0-rc1 #1 [ 10.433495] Hardware name: QCI QSSC-S4R/QSSC-S4R, BIOS QSSC-S4R.QCI.01.00.S013.032920111005 03/29/2011 [ 10.443886] task: ffffffff81906460 ti: ffffffff818f0000 task.ti: ffffffff818f0000 [ 10.452239] RIP: 0010:[<ffffffffa0133df0>] [<ffffffffa0133df0>] ahci_hw_interrupt+0x100/0x130 [libahci] [ 10.462838] RSP: 0018:ffff880033c03d98 EFLAGS: 00010046 [ 10.468767] RAX: 0000000000a400a4 RBX: ffff880029a6bc18 RCX: 00000000fffffffa [ 10.476731] RDX: 00000000000000a4 RSI: ffff880029bb0000 RDI: ffff880029a6bc18 [ 10.484696] RBP: ffff880033c03dc8 R08: 0000000000000000 R09: ffff88002f800490 [ 10.492661] R10: 0000000000000000 R11: 0000000000000005 R12: 0000000000000000 [ 10.500625] R13: ffff880029a6bd98 R14: 0000000000000000 R15: ffffc90000194000 [ 10.508590] FS: 0000000000000000(0000) GS:ffff880033c00000(0000) knlGS:0000000000000000 [ 10.517623] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 10.524035] CR2: 000000000000003c CR3: 00000000328ff000 CR4: 00000000000007b0 [ 10.531999] Stack: [ 10.534241] 0000000000000017 ffff880031ba7d00 000000000000005c ffff880031ba7d00 [ 10.542535] 0000000000000000 000000000000005c ffff880033c03e10 ffffffff810c2a1e [ 10.550827] ffff880031ae2900 000000008108fb4f ffff880031ae2900 ffff880031ae2984 [ 10.559121] Call Trace: [ 10.561849] <IRQ> [ 10.563994] [<ffffffff810c2a1e>] handle_irq_event_percpu+0x3e/0x1a0 [ 10.571309] [<ffffffff810c2bbd>] handle_irq_event+0x3d/0x60 [ 10.577631] [<ffffffff810c4fdd>] try_one_irq.isra.6+0x8d/0xf0 [ 10.584142] [<ffffffff810c5313>] note_interrupt+0x173/0x1f0 [ 10.590460] [<ffffffff810c2a8e>] handle_irq_event_percpu+0xae/0x1a0 [ 10.597554] [<ffffffff810c2bbd>] handle_irq_event+0x3d/0x60 [ 10.603872] [<ffffffff810c5727>] handle_edge_irq+0x77/0x130 [ 10.610199] [<ffffffff81014b8f>] handle_irq+0xbf/0x150 [ 10.616040] [<ffffffff8109ff4e>] ? vtime_account_idle+0xe/0x50 [ 10.622654] [<ffffffff815fca1a>] ? atomic_notifier_call_chain+0x1a/0x20 [ 10.630140] [<ffffffff816038cf>] do_IRQ+0x4f/0xf0 [ 10.635490] [<ffffffff815f8aed>] common_interrupt+0x6d/0x6d [ 10.641805] <EOI> [ 10.643950] [<ffffffff8149ca9f>] ? cpuidle_enter_state+0x4f/0xc0 [ 10.650972] [<ffffffff8149ca98>] ? cpuidle_enter_state+0x48/0xc0 [ 10.657775] [<ffffffff8149cb47>] cpuidle_enter+0x17/0x20 [ 10.663807] [<ffffffff810b0070>] cpu_startup_entry+0x2c0/0x3d0 [ 10.670423] [<ffffffff815dfcc7>] rest_init+0x77/0x80 [ 10.676065] [<ffffffff81a60f47>] start_kernel+0x40f/0x41a [ 10.682190] [<ffffffff81a60941>] ? repair_env_string+0x5c/0x5c [ 10.688799] [<ffffffff81a60120>] ? early_idt_handlers+0x120/0x120 [ 10.695699] [<ffffffff81a605ee>] x86_64_start_reservations+0x2a/0x2c [ 10.702889] [<ffffffff81a60733>] x86_64_start_kernel+0x143/0x152 [ 10.709689] Code: a0 fc ff 85 c0 8b 4d d4 74 c3 48 8b 7b 08 89 ca 48 c7 c6 60 66 13 a0 31 c0 e8 9d 70 28 e1 8b 4d d4 eb aa 0f 1f 84 00 00 00 00 00 <45> 8b 64 24 3c 48 89 df e8 23 47 4c e1 41 83 fc 01 19 c0 48 83 [ 10.731470] RIP [<ffffffffa0133df0>] ahci_hw_interrupt+0x100/0x130 [libahci] [ 10.739441] RSP <ffff880033c03d98> [ 10.743333] CR2: 000000000000003c [ 10.747032] ---[ end trace b6e82636970e2690 ]--- [ 10.760190] Kernel panic - not syncing: Fatal exception in interrupt [ 10.767291] Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff) Cc: Alexander Gordeev <agordeev@redhat.com> Cc: Tejun Heo <tj@kernel.org> Cc: <stable@vger.kernel.org> Signed-of-by: David Milburn <dmilburn@redhat.com> Fixes: 5ca72c4f7c41 ("AHCI: Support multiple MSIs")
| * pata_samsung_cf: fix ata_host_activate() failure handlingBartlomiej Zolnierkiewicz2014-04-151-3/+7
| | | | | | | | | | | | | | | | | | | | Add missing clk_disable() call to ata_host_activate() failure path. Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * pata_arasan_cf: fix ata_host_activate() failure handlingBartlomiej Zolnierkiewicz2014-04-141-2/+5
| | | | | | | | | | | | | | | | | | | | | | Add missing cf_exit() and clk_put() calls to ata_host_activate() failure path. Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Tejun Heo <tj@kernel.org>
| * ata: fix i.MX AHCI driver dependenciesJean Delvare2014-04-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | The ahci_imx driver is only needed on Freescale i.MX platforms so don't let it be built on other platforms, except for build test purpose. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Tejun Heo <tj@kernel.org> Cc: Richard Zhu <r65037@freescale.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * pata_at91: fix ata_host_activate() failure handlingBartlomiej Zolnierkiewicz2014-04-021-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add missing clk_put() call to ata_host_activate() failure path. Sergei says, "Hm, I have once fixed that (see that *if* (!ret)) but looks like a later commit 477c87e90853d136b188c50c0e4a93d01cad872e (ARM: at91/pata: use gpio_is_valid to check the gpio) broke it again. :-( Would be good if the changelog did mention that..." Cc: Andrew Victor <linux@maxim.org.za> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org
| * libata: Update queued trim blacklist for M5x0 drivesMartin K. Petersen2014-04-021-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Crucial/Micron M500 drives properly support queued DSM TRIM starting with firmware MU05. Update the blacklist so we only disable queued trim for older firmware releases. Early M550 series drives suffer from the same issue as M500. A bugfix firmware is in the pipeline but not ready yet. Until then, blacklist queued trim for M550. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Cc: Chris Samuel <chris@csamuel.org> Cc: Marc MERLIN <marc@merlins.org> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org
| * libata: make AHCI_XGENE depend on PHY_XGENETejun Heo2014-04-021-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AHCI_XGENE is only applicable on ARM64 but it can also be enabled for compile testing; however, AHCI_XGENE selects PHY_XGENE which has other arch specific dependencies. This leads to the following warning when enabling it on other archs for compile testing. warning: (AHCI_XGENE) selects PHY_XGENE which has unmet direct dependencies (HAS_IOMEM && OF && (ARM64 || COMPILE_TEST)) Selecting a config option which itself has dependencies can easily lead to broken configurations. For now, let's just make AHCI_XGENE depend on PHY_XGENE which has all the necessary dependencies already. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Loc Ho <lho@apm.com> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: Kishon Vijay Abraham I <kishon@ti.com>
* | Merge branch 'for-linus' of ↵Linus Torvalds2014-04-021-2/+2
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina: "Usual rocket science -- mostly documentation and comment updates" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: sparse: fix comment doc: fix double words isdn: capi: fix "CAPI_VERSION" comment doc: DocBook: Fix typos in xml and template file Bluetooth: add module name for btwilink driver core: unexport static function create_syslog_header mmc: core: typo fix in printk specifier ARM: spear: clean up editing mistake net-sysfs: fix comment typo 'CONFIG_SYFS' doc: Insert MODULE_ in module-signing macros Documentation: update URL to hfsplus Technote 1150 gpio: update path to documentation ixgbe: Fix format string in ixgbe_fcoe. Kconfig: Remove useless "default N" lines user_namespace.c: Remove duplicated word in comment CREDITS: fix formatting treewide: Fix typo in Documentation/DocBook mm: Fix warning on make htmldocs caused by slab.c ata: ata-samsung_cf: cleanup in header file idr: remove unused prototype of idr_free()
| * Merge branch 'master' into for-nextJiri Kosina2014-02-2014-191/+541
| |\
| * | treewide: Fix typo in Documentation/DocBookMasanari Iida2014-02-191-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fix spelling typo in Documentation/DocBook. It is because .html and .xml files are generated by make htmldocs, I have to fix a typo within the source files. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | Merge tag 'pci-v3.15-changes' of ↵Linus Torvalds2014-04-011-11/+9
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI changes from Bjorn Helgaas: "Enumeration - Increment max correctly in pci_scan_bridge() (Andreas Noever) - Clarify the "scan anyway" comment in pci_scan_bridge() (Andreas Noever) - Assign CardBus bus number only during the second pass (Andreas Noever) - Use request_resource_conflict() instead of insert_ for bus numbers (Andreas Noever) - Make sure bus number resources stay within their parents bounds (Andreas Noever) - Remove pci_fixup_parent_subordinate_busnr() (Andreas Noever) - Check for child busses which use more bus numbers than allocated (Andreas Noever) - Don't scan random busses in pci_scan_bridge() (Andreas Noever) - x86: Drop pcibios_scan_root() check for bus already scanned (Bjorn Helgaas) - x86: Use pcibios_scan_root() instead of pci_scan_bus_with_sysdata() (Bjorn Helgaas) - x86: Use pcibios_scan_root() instead of pci_scan_bus_on_node() (Bjorn Helgaas) - x86: Merge pci_scan_bus_on_node() into pcibios_scan_root() (Bjorn Helgaas) - x86: Drop return value of pcibios_scan_root() (Bjorn Helgaas) NUMA - x86: Add x86_pci_root_bus_node() to look up NUMA node from PCI bus (Bjorn Helgaas) - x86: Use x86_pci_root_bus_node() instead of get_mp_bus_to_node() (Bjorn Helgaas) - x86: Remove mp_bus_to_node[], set_mp_bus_to_node(), get_mp_bus_to_node() (Bjorn Helgaas) - x86: Use NUMA_NO_NODE, not -1, for unknown node (Bjorn Helgaas) - x86: Remove acpi_get_pxm() usage (Bjorn Helgaas) - ia64: Use NUMA_NO_NODE, not MAX_NUMNODES, for unknown node (Bjorn Helgaas) - ia64: Remove acpi_get_pxm() usage (Bjorn Helgaas) - ACPI: Fix acpi_get_node() prototype (Bjorn Helgaas) Resource management - i2o: Fix and refactor PCI space allocation (Bjorn Helgaas) - Add resource_contains() (Bjorn Helgaas) - Add %pR support for IORESOURCE_UNSET (Bjorn Helgaas) - Mark resources as IORESOURCE_UNSET if we can't assign them (Bjorn Helgaas) - Don't clear IORESOURCE_UNSET when updating BAR (Bjorn Helgaas) - Check IORESOURCE_UNSET before updating BAR (Bjorn Helgaas) - Don't try to claim IORESOURCE_UNSET resources (Bjorn Helgaas) - Mark 64-bit resource as IORESOURCE_UNSET if we only support 32-bit (Bjorn Helgaas) - Don't enable decoding if BAR hasn't been assigned an address (Bjorn Helgaas) - Add "weak" generic pcibios_enable_device() implementation (Bjorn Helgaas) - alpha, microblaze, sh, sparc, tile: Use default pcibios_enable_device() (Bjorn Helgaas) - s390: Use generic pci_enable_resources() (Bjorn Helgaas) - Don't check resource_size() in pci_bus_alloc_resource() (Bjorn Helgaas) - Set type in __request_region() (Bjorn Helgaas) - Check all IORESOURCE_TYPE_BITS in pci_bus_alloc_from_region() (Bjorn Helgaas) - Change pci_bus_alloc_resource() type_mask to unsigned long (Bjorn Helgaas) - Log IDE resource quirk in dmesg (Bjorn Helgaas) - Revert "[PATCH] Insert GART region into resource map" (Bjorn Helgaas) PCI device hotplug - Make check_link_active() non-static (Rajat Jain) - Use link change notifications for hot-plug and removal (Rajat Jain) - Enable link state change notifications (Rajat Jain) - Don't disable the link permanently during removal (Rajat Jain) - Don't check adapter or latch status while disabling (Rajat Jain) - Disable link notification across slot reset (Rajat Jain) - Ensure very fast hotplug events are also processed (Rajat Jain) - Add hotplug_lock to serialize hotplug events (Rajat Jain) - Remove a non-existent card, regardless of "surprise" capability (Rajat Jain) - Don't turn slot off when hot-added device already exists (Yijing Wang) MSI - Keep pci_enable_msi() documentation (Alexander Gordeev) - ahci: Fix broken single MSI fallback (Alexander Gordeev) - ahci, vfio: Use pci_enable_msi_range() (Alexander Gordeev) - Check kmalloc() return value, fix leak of name (Greg Kroah-Hartman) - Fix leak of msi_attrs (Greg Kroah-Hartman) - Fix pci_msix_vec_count() htmldocs failure (Masanari Iida) Virtualization - Device-specific ACS support (Alex Williamson) Freescale i.MX6 - Wait for retraining (Marek Vasut) Marvell MVEBU - Use Device ID and revision from underlying endpoint (Andrew Lunn) - Fix incorrect size for PCI aperture resources (Jason Gunthorpe) - Call request_resource() on the apertures (Jason Gunthorpe) - Fix potential issue in range parsing (Jean-Jacques Hiblot) Renesas R-Car - Check platform_get_irq() return code (Ben Dooks) - Add error interrupt handling (Ben Dooks) - Fix bridge logic configuration accesses (Ben Dooks) - Register each instance independently (Magnus Damm) - Break out window size handling (Magnus Damm) - Make the Kconfig dependencies more generic (Magnus Damm) Synopsys DesignWare - Fix RC BAR to be single 64-bit non-prefetchable memory (Mohit Kumar) Miscellaneous - Remove unused SR-IOV VF Migration support (Bjorn Helgaas) - Enable INTx if BIOS left them disabled (Bjorn Helgaas) - Fix hex vs decimal typo in cpqhpc_probe() (Dan Carpenter) - Clean up par-arch object file list (Liviu Dudau) - Set IORESOURCE_ROM_SHADOW only for the default VGA device (Sander Eikelenboom) - ACPI, ARM, drm, powerpc, pcmcia, PCI: Use list_for_each_entry() for bus traversal (Yijing Wang) - Fix pci_bus_b() build failure (Paul Gortmaker)" * tag 'pci-v3.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (108 commits) Revert "[PATCH] Insert GART region into resource map" PCI: Log IDE resource quirk in dmesg PCI: Change pci_bus_alloc_resource() type_mask to unsigned long PCI: Check all IORESOURCE_TYPE_BITS in pci_bus_alloc_from_region() resources: Set type in __request_region() PCI: Don't check resource_size() in pci_bus_alloc_resource() s390/PCI: Use generic pci_enable_resources() tile PCI RC: Use default pcibios_enable_device() sparc/PCI: Use default pcibios_enable_device() (Leon only) sh/PCI: Use default pcibios_enable_device() microblaze/PCI: Use default pcibios_enable_device() alpha/PCI: Use default pcibios_enable_device() PCI: Add "weak" generic pcibios_enable_device() implementation PCI: Don't enable decoding if BAR hasn't been assigned an address PCI: Enable INTx in pci_reenable_device() only when MSI/MSI-X not enabled PCI: Mark 64-bit resource as IORESOURCE_UNSET if we only support 32-bit PCI: Don't try to claim IORESOURCE_UNSET resources PCI: Check IORESOURCE_UNSET before updating BAR PCI: Don't clear IORESOURCE_UNSET when updating BAR PCI: Mark resources as IORESOURCE_UNSET if we can't assign them ... Conflicts: arch/x86/include/asm/topology.h drivers/ata/ahci.c
| * | | ahci: Use pci_enable_msi_range() instead of pci_enable_msi_block()Alexander Gordeev2014-02-141-11/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pci_enable_msi_block() has been deprecated; use pci_enable_msi_range() instead. [bhelgaas: changelog] Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Tejun Heo <tj@kernel.org>
| * | | ahci: Fix broken fallback to single MSI modeAlexander Gordeev2014-02-141-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 7b92b4f61ec4 ("PCI/MSI: Remove pci_enable_msi_block_auto()") introduced a regression: if multiple MSI initialization fails, the code falls back to INTx rather than to single MSI. Fixes: 7b92b4f61ec4 ("PCI/MSI: Remove pci_enable_msi_block_auto()") Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Tejun Heo <tj@kernel.org>
* | | | Merge tag 'pm+acpi-3.15-rc1' of ↵Linus Torvalds2014-04-011-27/+45
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management updates from Rafael Wysocki: "The majority of this material spent some time in linux-next, some of it even several weeks. There are a few relatively fresh commits in it, but they are mostly fixes and simple cleanups. ACPI took the lead this time, both in terms of the number of commits and the number of modified lines of code, cpufreq follows and there are a few changes in the PM core and in cpuidle too. A new feature that already got some LWN.net's attention is the device PM QoS extension allowing latency tolerance requirements to be propagated from leaf devices to their ancestors with hardware interfaces for specifying latency tolerance. That should help systems with hardware-driven power management to avoid going too far with it in cases when there are latency tolerance constraints. There also are some significant changes in the ACPI core related to the way in which hotplug notifications are handled. They affect PCI hotplug (ACPIPHP) and the ACPI dock station code too. The bottom line is that all those notification now go through the root notify handler and are propagated to the interested subsystems by means of callbacks instead of having to install a notify handler for each device object that we can potentially get hotplug notifications for. In addition to that ACPICA will now advertise "Windows 2013" compatibility for _OSI, because some systems out there don't work correctly if that is not done (some of them don't even boot). On the system suspend side of things, all of the device suspend and resume callbacks, except for ->prepare() and ->complete(), are now going to be executed asynchronously as that turns out to speed up system suspend and resume on some platforms quite significantly and we have a few more optimizations in that area. Apart from that, there are some new device IDs and fixes and cleanups all over. In particular, the system suspend and resume handling by cpufreq should be improved and the cpuidle menu governor should be a bit more robust now. Specifics: - Device PM QoS support for latency tolerance constraints on systems with hardware interfaces allowing such constraints to be specified. That is necessary to prevent hardware-driven power management from becoming overly aggressive on some systems and to prevent power management features leading to excessive latencies from being used in some cases. - Consolidation of the handling of ACPI hotplug notifications for device objects. This causes all device hotplug notifications to go through the root notify handler (that was executed for all of them anyway before) that propagates them to individual subsystems, if necessary, by executing callbacks provided by those subsystems (those callbacks are associated with struct acpi_device objects during device enumeration). As a result, the code in question becomes both smaller in size and more straightforward and all of those changes should not affect users. - ACPICA update, including fixes related to the handling of _PRT in cases when it is broken and the addition of "Windows 2013" to the list of supported "features" for _OSI (which is necessary to support systems that work incorrectly or don't even boot without it). Changes from Bob Moore and Lv Zheng. - Consolidation of ACPI _OST handling from Jiang Liu. - ACPI battery and AC fixes allowing unusual system configurations to be handled by that code from Alexander Mezin. - New device IDs for the ACPI LPSS driver from Chiau Ee Chew. - ACPI fan and thermal optimizations related to system suspend and resume from Aaron Lu. - Cleanups related to ACPI video from Jean Delvare. - Assorted ACPI fixes and cleanups from Al Stone, Hanjun Guo, Lan Tianyu, Paul Bolle, Tomasz Nowicki. - Intel RAPL (Running Average Power Limits) driver cleanups from Jacob Pan. - intel_pstate fixes and cleanups from Dirk Brandewie. - cpufreq fixes related to system suspend/resume handling from Viresh Kumar. - cpufreq core fixes and cleanups from Viresh Kumar, Stratos Karafotis, Saravana Kannan, Rashika Kheria, Joe Perches. - cpufreq drivers updates from Viresh Kumar, Zhuoyu Zhang, Rob Herring. - cpuidle fixes related to the menu governor from Tuukka Tikkanen. - cpuidle fix related to coupled CPUs handling from Paul Burton. - Asynchronous execution of all device suspend and resume callbacks, except for ->prepare and ->complete, during system suspend and resume from Chuansheng Liu. - Delayed resuming of runtime-suspended devices during system suspend for the PCI bus type and ACPI PM domain. - New set of PM helper routines to allow device runtime PM callbacks to be used during system suspend and resume more easily from Ulf Hansson. - Assorted fixes and cleanups in the PM core from Geert Uytterhoeven, Prabhakar Lad, Philipp Zabel, Rashika Kheria, Sebastian Capella. - devfreq fix from Saravana Kannan" * tag 'pm+acpi-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (162 commits) PM / devfreq: Rewrite devfreq_update_status() to fix multiple bugs PM / sleep: Correct whitespace errors in <linux/pm.h> intel_pstate: Set core to min P state during core offline cpufreq: Add stop CPU callback to cpufreq_driver interface cpufreq: Remove unnecessary braces cpufreq: Fix checkpatch errors and warnings cpufreq: powerpc: add cpufreq transition latency for FSL e500mc SoCs MAINTAINERS: Reorder maintainer addresses for PM and ACPI PM / Runtime: Update runtime_idle() documentation for return value meaning video / output: Drop display output class support fujitsu-laptop: Drop unneeded include acer-wmi: Stop selecting VIDEO_OUTPUT_CONTROL ACPI / gpu / drm: Stop selecting VIDEO_OUTPUT_CONTROL ACPI / video: fix ACPI_VIDEO dependencies cpufreq: remove unused notifier: CPUFREQ_{SUSPENDCHANGE|RESUMECHANGE} cpufreq: Do not allow ->setpolicy drivers to provide ->target cpufreq: arm_big_little: set 'physical_cluster' for each CPU cpufreq: arm_big_little: make vexpress driver depend on bL core driver ACPI / button: Add ACPI Button event via netlink routine ACPI: Remove duplicate definitions of PREFIX ...
| * \ \ \ Merge branch 'acpi-hotplug'Rafael J. Wysocki2014-03-171-27/+45
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * acpi-hotplug: ACPI / hotplug: Rework deferred execution of acpi_device_hotplug() ACPI / dock: Update copyright notice ACPI / dock: Drop remove_dock_dependent_devices() ACPI / dock: Drop struct acpi_dock_ops and all code related to it ACPI / ATA: Add hotplug contexts to ACPI companions of SATA devices ACPI / dock: Add .uevent() callback to struct acpi_hotplug_context ACPI / dock: Use callback pointers from devices' ACPI hotplug contexts ACPI / dock: Use ACPI device object pointers instead of ACPI handles ACPI / hotplug: Add .fixup() callback to struct acpi_hotplug_context ACPI / hotplug / PCI: Do not clear event callback pointer for docks ACPI / dock: Associate dock platform devices with ACPI device objects ACPI / dock: Pass ACPI device pointer to acpi_device_is_battery() ACPI / dock: Dispatch dock notifications from the global notify handler
| | * | | | ACPI / ATA: Add hotplug contexts to ACPI companions of SATA devicesRafael J. Wysocki2014-02-221-27/+45
| | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Modify the SATA subsystem to add hotplug contexts to ACPI companions of SATA devices and ports instead of registering special ACPI dock operations using register_hotplug_dock_device(). That change will allow the entire code handling those special ACPI dock operations to be dropped in the next commit. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Aaron Lu <aaron.lu@intel.com> Acked-by: Tejun Heo <tj@kernel.org>
* | | | | Merge branch 'for-3.15' of ↵Linus Torvalds2014-03-3183-700/+1959
|\ \ \ \ \ | |/ / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata updates from Tejun Heo: "A lot of activities on libata side this time. - A lot of changes around ahci. Various embedded platforms are implementing ahci controllers. Some were built atop ahci_platform, others were doing their own things. Hans made some structural changes to libahci and librarized ahci_platform so that ahci platform drivers can share more common code. A couple platform drivers are added on top of that and several are added to replace older drivers which were doing their own things (older ones are scheduled to be removed). - Dan finishes the patchset to make libata PM operations asynchronous. Combined with one patch being routed through scsi, this should speed resume measurably. - Various fixes and cleanups from Bartlomiej and others" * 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (61 commits) ata: fix Marvell SATA driver dependencies ata: fix ARASAN CompactFlash PATA driver dependencies ata: remove superfluous casts ata: sata_highbank: remove superfluous cast ata: fix Calxeda Highbank SATA driver dependencies ata: fix R-Car SATA driver dependencies ARM: davinci: da850: update SATA AHCI support ata: add new-style AHCI platform driver for DaVinci DA850 AHCI controller ata: move library code from ahci_platform.c to libahci_platform.c ata: ahci_platform: fix ahci_platform_data->suspend method handling libata: remove unused ata_sas_port_async_resume() stub libata.h: add stub for ata_sas_port_resume libata: async resume libata, libsas: kill pm_result and related cleanup ata: Fix compiler warning with APM X-Gene host controller driver arm64: Add APM X-Gene SoC AHCI SATA host controller DTS entries ata: Add APM X-Gene SoC AHCI SATA host controller driver Documentation: Add documentation for the APM X-Gene SoC SATA host controller DTS binding arm64: Add APM X-Gene SoC 15Gbps Multi-purpose PHY DTS entries ata: ahci_sunxi: fix code formatting ...
| * | | | ata: fix Marvell SATA driver dependenciesBartlomiej Zolnierkiewicz2014-03-271-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sata_mv host driver depend on PCI || ARCH_DOVE || ARCH_KIRKWOOD || ARCH_MV78XX0 || ARCH_MVEBU || ARCH_ORION5X config options as Marvell SATA support covers both Marvell PCI devices and Marvell Dove, Kirkwood, MV78xx0, Armada 370/XP and Orion5x SoCs (for non-PCI devices the driver to work requires suitable device tree node or platform device to be defined). Additionally allow the driver build if COMPILE_TEST config option is set. Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Gregory Clement <gregory.clement@free-electrons.com> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ata: fix ARASAN CompactFlash PATA driver dependenciesBartlomiej Zolnierkiewicz2014-03-261-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make pata_arasan_cf host driver depend on ARCH_SPEAR13XX config option as ARASAN CompactFlash PATA support is specific to ST SPEAr13xx SoCs and the driver to work requires suitable device tree node (or platform device) to be defined. Additionally allow the driver build if COMPILE_TEST config option is set. Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ata: remove superfluous castsJoe Perches2014-03-264-10/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unreferenced casts of void * types are unnecessary so remove them. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ata: sata_highbank: remove superfluous castBartlomiej Zolnierkiewicz2014-03-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | hpriv->plat_data is 'void *' so there is no need to cast it to 'struct ecx_plat_data *'. Cc: Mark Langsdorf <mark.langsdorf@calxeda.com> Cc: Rob Herring <robh@kernel.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ata: fix Calxeda Highbank SATA driver dependenciesBartlomiej Zolnierkiewicz2014-03-261-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sata_highbank host driver depend on ARCH_HIGHBANK config option as Calxeda Highbank SATA support is specific to Calxeda Highbank SoCs and the driver to work requires suitable device tree node to be defined. Additionally allow the driver build if COMPILE_TEST config option is set. Cc: Mark Langsdorf <mark.langsdorf@calxeda.com> Cc: Rob Herring <robh@kernel.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ata: fix R-Car SATA driver dependenciesBartlomiej Zolnierkiewicz2014-03-261-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sata_rcar host driver depend on ARCH_SHMOBILE config option as Renesas R-Car SATA support is specific to Renesas SoCs and the driver to work requires suitable device tree node (or platform device) to be defined. Additionally allow the driver build if COMPILE_TEST config option is set. Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ata: add new-style AHCI platform driver for DaVinci DA850 AHCI controllerBartlomiej Zolnierkiewicz2014-03-253-0/+124
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the new ahci_da850 host driver. Platform changes needed to make DaVinci DA850 SATA AHCI support fully functional are in the separate "ARM: davinci: da850: update SATA AHCI support" commit. Please note that this driver doesn't have the superfluous clock control code as clock is already handled by the generic AHCI platform library code. Cc: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ata: move library code from ahci_platform.c to libahci_platform.cBartlomiej Zolnierkiewicz2014-03-254-524/+549
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move AHCI platform library code from ahci_platform.c to libahci_platform.c and fix dependencies for ahci_st, ahci_imx and ahci_sunxi drivers. Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ata: ahci_platform: fix ahci_platform_data->suspend method handlingBartlomiej Zolnierkiewicz2014-03-251-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Looking at ST SPEAr1340 AHCI code (the only user of the deprecated pdata->suspend and pdata->resume) it is obvious the we should return after calling pdata->suspend() only if the function have returned non-zero return value. The code has been broken since commit 1e70c2 ("ata/ahci_platform: Add clock framework support"). Fix it. Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | libata: async resumeTodd Brandt2014-03-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Improve overall system resume time by making libata link recovery actions asynchronous relative to other resume events. Link resume operations are performed using the scsi_eh thread, so commands, particularly the sd resume start/stop command, will be held off until the device exits error handling. Libata already flushes eh with ata_port_wait_eh() in the port teardown paths, so there are no concerns with async operation colliding with the end-of-life of the ata_port object. Also, libata-core is already careful to flush in-flight pm operations before another round of pm starts on the given ata_port. Reference: https://01.org/suspendresume/blogs/tebrandt/2013/hard-disk-resume-optimization-simpler-approach Cc: Len Brown <len.brown@intel.com> Cc: Phillip Susi <psusi@ubuntu.com> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> [djbw: rebase on cleanup patch, changelog wordsmithing] Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | libata, libsas: kill pm_result and related cleanupDan Williams2014-03-182-86/+62
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tejun says: "At least for libata, worrying about suspend/resume failures don't make whole lot of sense. If suspend failed, just proceed with suspend. If the device can't be woken up afterwards, that's that. There isn't anything we could have done differently anyway. The same for resume, if spinup fails, the device is dud and the following commands will invoke EH actions and will eventually fail. Again, there really isn't any *choice* to make. Just making sure the errors are handled gracefully (ie. don't crash) and the following commands are handled correctly should be enough." The only libata user that actually cares about the result from a suspend operation is libsas. However, it only cares about whether queuing a new operation collides with an in-flight one. All libsas does with the error is retry, but we can just let libata wait for the previous operation before continuing. Other cleanups include: 1/ Unifying all ata port pm operations on an ata_port_pm_ prefix 2/ Marking all ata port pm helper routines as returning void, only ata_port_pm_ entry points need to fake a 0 return value. 3/ Killing ata_port_{suspend|resume}_common() in favor of calling ata_port_request_pm() directly 4/ Killing the wrappers that just do a to_ata_port() conversion 5/ Clearly marking the entry points that do async operations with an _async suffix. Reference: http://marc.info/?l=linux-scsi&m=138995409532286&w=2 Cc: Phillip Susi <psusi@ubuntu.com> Cc: Alan Stern <stern@rowland.harvard.edu> Suggested-by: Tejun Heo <tj@kernel.org> Signed-off-by: Todd Brandt <todd.e.brandt@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ata: Fix compiler warning with APM X-Gene host controller driverLoc Ho2014-03-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes an compiler warning with APM X-Gene host controller driver when compiled with DEBUG enabled. Signed-off-by: Loc Ho <lho@apm.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ata: Add APM X-Gene SoC AHCI SATA host controller driverLoc Ho2014-03-173-0/+494
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for the APM X-Gene SoC AHCI SATA host controller driver. It requires the corresponding APM X-Gene SoC PHY driver. This initial version only supports Gen3 speed. Signed-off-by: Loc Ho <lho@apm.com> Signed-off-by: Tuan Phan <tphan@apm.com> Signed-off-by: Suman Tripathi <stripathi@apm.com> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ata: ahci_sunxi: fix code formattingBartlomiej Zolnierkiewicz2014-03-171-22/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Hans de Goede <hdegoede@redhat.com>
| * | | | ata: ahci_sunxi: make ahci_sunxi_resume() staticBartlomiej Zolnierkiewicz2014-03-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Hans de Goede <hdegoede@redhat.com>
| * | | | ata: ahci_platform: fix devm_ioremap_resource() return value checkingBartlomiej Zolnierkiewicz2014-03-141-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | devm_ioremap_resource() returns a pointer to the remapped memory or an ERR_PTR() encoded error code on failure. Fix the check inside ahci_platform_get_resources() accordingly. Also while at it remove a needless line break. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ata: pata_imx: fix devm_ioremap_resource() return value checkingBartlomiej Zolnierkiewicz2014-03-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | devm_ioremap_resource() returns a pointer to the remapped memory or an ERR_PTR() encoded error code on failure. Fix the check inside pata_imx_probe() accordingly. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ata: ahci_st: remove deprecated struct ahci_platform_data usageBartlomiej Zolnierkiewicz2014-03-141-11/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | struct ahci_platform_data is deprecated (please see comments in <linux/ahci_platform.h> for details). Convert ahci_st driver to use custom ->host_stop method instead. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ata: ahci_st: build fixesBartlomiej Zolnierkiewicz2014-03-142-8/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * The config option for ahci_st driver was renamed from CONFIG_SATA_AHCI_ST to CONFIG_AHCI_ST but Makefile was not updated. Fix it (also while at it move the ahci_st driver entry below ahci_imx and ahci_sunxi ones). * Fix a few build issues in the ahci_st driver itself. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | libata: zpodd: eliminate odd_can_poweroffAaron Lu2014-03-141-19/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we can directly get the ACPI device conterpart of the physical ATA transport device, the odd_can_poweroff can be eliminated. Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | libata: acpi: avoid passing NULL to ACPI evaluation methodAaron Lu2014-03-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If ACPI handle for an ATA device is NULL, we shouldn't call ata_dev_get_GTF as that function will use handle to do some ACPI evaluation. Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | libata: zpodd: should depend on PM_RUNTIMEAaron Lu2014-03-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ZPODD is built on top of runtime PM functionality, it doesn't make sense to have it in a kernel that doesn't have CONFIG_PM_RUNTIME set. Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ata: Fix SC1200 dependenciesJean Delvare2014-03-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The SC1200 is a SoC based on the Geode GX1 32-bit x86 processor, so its drivers are only needed on this architecture, except for build testing purpose. Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ahci: st: Invoke AHCI Platform Suspend/ResumeLee Jones2014-03-141-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is where we disable IRQs on suspend and update the internal power state during suspend/resume. Suggested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ahci: st: Only build for ST-Micro h/wLee Jones2014-03-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This device is designed specifically to run on ST-Microelectronics' hardware. To ensure no attempts are made to run on anything incompatible we add a dependency on ST architecture Suggested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ahci: st: Utilise ata_platform_remove_one() callLee Jones2014-03-141-18/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ata_platform_remove_one() allows us to specify our own exit function via platform data then goes off and removes ATA Host and Port in preparation for device removal. Suggested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ahci: st: Remove legacy dependencies on PHYLee Jones2014-03-142-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Suggested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Tejun Heo <tj@kernel.org>
| * | | | ahci: st: Standardise naming conventionsLee Jones2014-03-142-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Other devices have adopted similar naming conventions which have been accepted as the standard. This patch brings any mention of the the ST AHCI driver into line with them. Suggested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Tejun Heo <tj@kernel.org>
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