- 27 4月, 2015 7 次提交
-
-
由 Alex Deucher 提交于
Selectively enable which packets we send based on monitor caps. Signed-off-by: NAlex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
-
由 Alex Deucher 提交于
Otherwise the driver may try and send audio which may confuse the monitor. v2: set pin to NULL if no audio v3: avoid crash with analog encoders Signed-off-by: NAlex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
-
由 Alex Deucher 提交于
Don't enable the audio and avi infoframes and audio stream until all the state is set up. Signed-off-by: NAlex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
-
由 Alex Deucher 提交于
It's mostly duplicated with evergreen_dp_enable. This is a prerequisite for fix implemented in another patch. Signed-off-by: NAlex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
-
由 Alex Deucher 提交于
Set the line first, then enable the stream. May fix pink line problems on some displays. Signed-off-by: NAlex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
-
由 Michel Dänzer 提交于
The number of relocs is passed in by userspace and can be large. It has been observed to cause kcalloc failures in the wild. Cc: stable@vger.kernel.org Reviewed-by: NChristian König <christian.koenig@amd.com> Signed-off-by: NMichel Dänzer <michel.daenzer@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
-
由 Stephen Rothwell 提交于
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 25 4月, 2015 2 次提交
-
-
由 Dmitry Torokhov 提交于
The new Atmel MXT driver expects i2c client's address contain the primary (main address) of the chip, and calculates the expected bootloader address form the primary address. Unfortunately chrome_laptop does probe the devices and if touchpad (or touchscreen, or both) comes up in bootloader mode the i2c device gets instantiated with the bootloader address which confuses the driver. To work around this issue let's probe the primary address first. If the device is not detected at the primary address we'll probe alternative addresses as "dummy" devices. If any of them are found, destroy the dummy client and instantiate client with proper name at primary address still. Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: NOlof Johansson <olof@lixom.net>
-
由 Hans de Goede 提交于
commit a39f46df ("toshiba_acpi: Fix regression caused by backlight extra check code") causes the backlight to no longer work on the Toshiba Z30, reverting that commit fixes this but restores the original issue fixed by that commit. Looking at the toshiba_acpi backlight code for a fix for this I noticed that the toshiba code is the only code under platform/x86 which unconditionally registers a vendor acpi backlight interface, without checking for acpi_video backlight support first. This commit adds the necessary checks bringing toshiba_acpi in line with the other drivers, and fixing the Z30 regression without needing to revert the commit causing it. Chances are that there will be some Toshiba models which have a non working acpi-video implementation while the toshiba vendor backlight interface does work, this commit adds an empty dmi_id table where such systems can be added, this is identical to how other drivers handle such systems. BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1206036 BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=86521Signed-off-by: NHans de Goede <hdegoede@redhat.com> Reviewed-and-tested-by: NAzael Avalos <coproscefalo@gmail.com> Signed-off-by: NDarren Hart <dvhart@linux.intel.com>
-
- 24 4月, 2015 6 次提交
-
-
由 Geert Uytterhoeven 提交于
If NO_DMA=y: drivers/built-in.o: In function `img_hash_write_via_dma_stop': img-hash.c:(.text+0xa2b822): undefined reference to `dma_unmap_sg' drivers/built-in.o: In function `img_hash_xmit_dma': img-hash.c:(.text+0xa2b8d8): undefined reference to `dma_map_sg' img-hash.c:(.text+0xa2b948): undefined reference to `dma_unmap_sg' Also move the "depends" section below the "tristate" line while we're at it. Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
-
由 Rafael J. Wysocki 提交于
If the special PRP0001 device ID is present in the given device's list of ACPI/PNP IDs and the device has a valid "compatible" property in the _DSD, it should be enumerated using the default mechanism, unless some scan handlers match the IDs preceding PRP0001 in the device's list of ACPI/PNP IDs. In addition to that, no scan handlers matching the IDs following PRP0001 in that list should be attached to the device. To make that happen, define a scan handler that will match PRP0001 and trigger the default enumeration for the matching devices if the "compatible" property is present for them. Since that requires the check for platform_id and device->handler to be removed from acpi_default_enumeration(), move the fallback invocation of acpi_default_enumeration() to acpi_bus_attach() (after it's checked if there's a matching ACPI driver for the device), which is a better place to call it, and do the platform_id check in there too (device->handler is guaranteed to be unset at the point where the function is looking for a matching ACPI driver). Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: NDarren Hart <dvhart@linux.intel.com>
-
由 Rafael J. Wysocki 提交于
acpi_scan_is_offline() may be called under the physical_node_lock lock of the given device object's parent, so prevent lockdep from complaining about that by annotating that instance with SINGLE_DEPTH_NESTING. Fixes: caa73ea1 (ACPI / hotplug / driver core: Handle containers in a special way) Reported-and-tested-by: NXie XiuQi <xiexiuqi@huawei.com> Reviewed-by: NToshi Kani <toshi.kani@hp.com> Cc: 3.14+ <stable@vger.kernel.org> # 3.14+ Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
-
由 Imre Deak 提交于
Due this typo we don't save/restore the GFX_MAX_REQ_COUNT register across suspend/resume, so fix this. This was introduced in commit ddeea5b0 Author: Imre Deak <imre.deak@intel.com> Date: Mon May 5 15:19:56 2014 +0300 drm/i915: vlv: add runtime PM support I noticed this only by reading the code. To my knowledge it shouldn't cause any real problems at the moment, since the power well backing this register remains on across a runtime s/r. This may change once system-wide s0ix functionality is enabled in the kernel. v2: - resend after a missing git add -u :/ Cc: stable@vger.kernel.org Signed-off-by: NImre Deak <imre.deak@intel.com> Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he@intel.com) Signed-off-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: NMika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: NJani Nikula <jani.nikula@intel.com>
-
由 Michel Thierry 提交于
WaIdleLiteRestore is an execlists-only workaround, and requires the driver to ensure that any context always has HEAD!=TAIL when attempting lite restore. Add two extra MI_NOOP instructions at the end of each request, but keep the requests tail pointing before the MI_NOOPs. We may not need to executed them, and this is why request->tail is sampled before adding these extra instructions. If we submit a context to the ELSP which has previously been submitted, move the tail pointer past the MI_NOOPs. This ensures HEAD!=TAIL. v2: Move overallocation to gen8_emit_request, and added note about sampling request->tail in commit message (Chris). v3: Remove redundant request->tail assignment in __i915_add_request, in lrc mode this is already set in execlists_context_queue. Do not add wa implementation details inside gem (Chris). v4: Apply the wa whenever the req has been resubmitted and update comment (Chris). Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk> Signed-off-by: NThomas Daniel <thomas.daniel@intel.com> Signed-off-by: NMichel Thierry <michel.thierry@intel.com> Signed-off-by: NJani Nikula <jani.nikula@intel.com>
-
由 Dmitry Torokhov 提交于
The hardware, according to the specs, is limited to 256 byte transfers, and current driver has no protections in case users attempt to do larger transfers. The code will just stomp over status register and mayhem ensues. Let's split larger transfers into digestable chunks. Doing this allows Atmel MXT driver on Pixel 1 function properly (it hasn't since commit 9d8dc3e5 "Input: atmel_mxt_ts - implement T44 message handling" which tries to consume multiple touchscreen/touchpad reports in a single transaction). Cc: stable@vger.kernel.org Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: NJani Nikula <jani.nikula@intel.com>
-
- 23 4月, 2015 2 次提交
-
-
由 Shobhit Kumar 提交于
For platforms that don't support DT, some early MFD modules can register lookup tables. Remove the __init annotation so that this works. This is similar to gpio_add_lookup_table() which allows late additions. CC: Samuel Ortiz <sameo@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: NShobhit Kumar <shobhit.kumar@intel.com> Signed-off-by: NThierry Reding <thierry.reding@gmail.com>
-
由 Vinod Koul 提交于
HSU_DMA is selected by the HSU_DMA_PCI driver, this should be user selected so remove the user prompt for this Signed-off-by: NVinod Koul <vinod.koul@intel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 22 4月, 2015 23 次提交
-
-
由 Ilya Dryomov 提交于
After the switch to blk-mq rbd_wq processes requests, not devices. Signed-off-by: NIlya Dryomov <idryomov@gmail.com>
-
由 Wolfram Sang 提交于
My Pengutronix address is not valid anymore, redirect people to the Pengutronix kernel team. Reported-by: NHarald Geyer <harald@ccbib.org> Signed-off-by: NWolfram Sang <wsa@the-dreams.de> Acked-by: NRobert Schwebel <r.schwebel@pengutronix.de> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
-
由 Wolfram Sang 提交于
My Pengutronix address is not valid anymore, redirect people to the Pengutronix kernel team. Reported-by: NHarald Geyer <harald@ccbib.org> Signed-off-by: NWolfram Sang <wsa@the-dreams.de> Acked-by: NRobert Schwebel <r.schwebel@pengutronix.de> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
-
由 Aaro Koskinen 提交于
Use fixed length string for register names. This saves 416 bytes in text size. Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi> Reviewed-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
-
由 Aaro Koskinen 提交于
Fix some trivial coding style issues to reduce noise from static analyzers. Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi> Reviewed-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
-
由 Aaro Koskinen 提交于
Convert OCTEON watchdog to WATCHDOG_CORE API. This enables support for multiple watchdogs on OCTEON boards. Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi> Reviewed-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
-
由 Michal Simek 提交于
Remove Kconfig dependency and enable driver for all ARCHs. Signed-off-by: NMichal Simek <michal.simek@xilinx.com> Reviewed-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
-
由 Mathieu Olivari 提交于
MSM watchdog configuration happens in the same register block as the timer, so we'll use the same binding as the existing timer. The qcom-wdt will now be probed when devicetree has an entry compatible with "qcom,kpss-timer" or "qcom-scss-timer". Signed-off-by: NMathieu Olivari <mathieu@codeaurora.org> Reviewed-by: NStephen Boyd <sboyd@codeaurora.org> Acked-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
-
由 Joe Perches 提交于
The seq_printf return value, because it's frequently misused, will eventually be converted to void. See: commit 1f33c41c ("seq_file: Rename seq_overflow() to seq_has_overflowed() and make public") Signed-off-by: NJoe Perches <joe@perches.com> Acked-by: Guenter Roeck <linux~roeck-us.net> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
-
由 Vinod Koul 提交于
DW_DMAC_CORE is slected by PCI or Platform driver, so this symbol shouldn't be user selectable, so remove the prompt Signed-off-by: NVinod Koul <vinod.koul@intel.com>
-
由 Chris Bainbridge 提交于
Use list_for_each_entry_safe for iterating because handler may be freed in the loop. BUG: unable to handle kernel NULL pointer dereference at 000000000000002c IP: [<ffffffff814d69c8>] acpi_ec_put_query_handler+0x7/0x1a Call Trace: acpi_ec_remove_query_handler+0x87/0x97 acpi_smbus_hc_remove+0x2a/0x44 [sbshc] acpi_device_remove+0x7b/0x9a __device_release_driver+0x7e/0x110 driver_detach+0xb0/0xc0 bus_remove_driver+0x54/0xe0 driver_unregister+0x2b/0x60 acpi_bus_unregister_driver+0x10/0x12 acpi_smb_hc_driver_exit+0x10/0x12 [sbshc] SyS_delete_module+0x1b8/0x210 system_call_fastpath+0x12/0x6a Signed-off-by: NChris Bainbridge <chris.bainbridge@gmail.com> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
-
由 Eric Mei 提交于
When array is degraded, read data landed on failed drives will result in reading rest of data in a stripe. So a single sequential read would result in same data being read twice. This patch is to avoid chunk aligned read for degraded array. The downside is to involve stripe cache which means associated CPU overhead and extra memory copy. Test Results: Following test are done on a enterprise storage node with Seagate 6T SAS drives and Xeon E5-2648L CPU (10 cores, 1.9Ghz), 10 disks MD RAID6 8+2, chunk size 128 KiB. I use FIO, using direct-io with various bs size, enough queue depth, tested sequential and 100% random read against 3 array config: 1) optimal, as baseline; 2) degraded; 3) degraded with this patch. Kernel version is 4.0-rc3. Each individual test I only did once so there might be some variations, but we just focus on big trend. Sequential Read: bs=(KiB) optimal(MiB/s) degraded(MiB/s) degraded-with-patch (MiB/s) 1024 1608 656 995 512 1624 710 956 256 1635 728 980 128 1636 771 983 64 1612 1119 1000 32 1580 1420 1004 16 1368 688 986 8 768 647 953 4 411 413 850 Random Read: bs=(KiB) optimal(IOPS) degraded(IOPS) degraded-with-patch (IOPS) 1024 163 160 156 512 274 273 272 256 426 428 424 128 576 592 591 64 726 724 726 32 849 848 837 16 900 970 971 8 927 940 929 4 948 940 955 Some notes: * In sequential + optimal, as bs size getting smaller, the FIO thread become CPU bound. * In sequential + degraded, there's big increase when bs is 64K and 32K, I don't have explanation. * In sequential + degraded-with-patch, the MD thread mostly become CPU bound. If you want to we can discuss specific data point in those data. But in general it seems with this patch, we have more predictable and in most cases significant better sequential read performance when array is degraded, and almost no noticeable impact on random read. Performance is a complicated thing, the patch works well for this particular configuration, but may not be universal. For example I imagine testing on all SSD array may have very different result. But I personally think in most cases IO bandwidth is more scarce resource than CPU. Signed-off-by: NEric Mei <eric.mei@seagate.com> Signed-off-by: NNeilBrown <neilb@suse.de>
-
由 NeilBrown 提交于
The default setting of 256 stripe_heads is probably much too small for many configurations. So it is best to make it auto-configure. Shrinking the cache under memory pressure is easy. The only interesting part here is that we put a fairly high cost ('seeks') on shrinking the cache as the cost is greater than just having to read more data, it reduces parallelism. Growing the cache on demand needs to be done carefully. If we allow fast growth, that can upset memory balance as lots of dirty memory can quickly turn into lots of memory queued in the stripe_cache. It is important for the raid5 block device to appear congested to allow write-throttling to work. So we only add stripes slowly. We set a flag when an allocation fails because all stripes are in use, allocate at a convenient time when that flag is set, and don't allow it to be set again until at least one stripe_head has been released for re-use. This means that a spurt of requests will only cause one stripe_head to be allocated, but a steady stream of requests will slowly increase the cache size - until memory pressure puts it back again. It could take hours to reach a steady state. The value written to, and displayed in, stripe_cache_size is used as a minimum. The cache can grow above this and shrink back down to it. The actual size is not directly visible, though it can be deduced to some extent by watching stripe_cache_active. Signed-off-by: NNeilBrown <neilb@suse.de>
-
由 NeilBrown 提交于
This allows us to easily add more (atomic) flags. Signed-off-by: NNeilBrown <neilb@suse.de>
-
由 NeilBrown 提交于
Rather than adjusting max_nr_stripes whenever {grow,drop}_one_stripe() succeeds, do it inside the functions. Also choose the correct hash to handle next inside the functions. This removes duplication and will help with future new uses of {grow,drop}_one_stripe. This also fixes a minor bug where the "md/raid:%md: allocate XXkB" message always said "0kB". Signed-off-by: NNeilBrown <neilb@suse.de>
-
由 NeilBrown 提交于
This is needed for future improvement to stripe cache management. Signed-off-by: NNeilBrown <neilb@suse.de>
-
由 Markus Stockhausen 提交于
Depending on the available coding we allow optimized rmw logic for write operations. To support easier testing this patch allows manual control of the rmw/rcw descision through the interface /sys/block/mdX/md/rmw_level. The configuration can handle three levels of control. rmw_level=0: Disable rmw for all RAID types. Hardware assisted P/Q calculation has no implementation path yet to factor in/out chunks of a syndrome. Enforcing this level can be benefical for slow CPUs with hardware syndrome support and fast SSDs. rmw_level=1: Estimate rmw IOs and rcw IOs. Execute rmw only if we will save IOs. This equals the "old" unpatched behaviour and will be the default. rmw_level=2: Execute rmw even if calculated IOs for rmw and rcw are equal. We might have higher CPU consumption because of calculating the parity twice but it can be benefical otherwise. E.g. RAID4 with fast dedicated parity disk/SSD. The option is implemented just to be forward-looking and will ONLY work with this patch! Signed-off-by: NMarkus Stockhausen <stockhausen@collogia.de> Signed-off-by: NNeilBrown <neilb@suse.de>
-
由 Markus Stockhausen 提交于
Glue it altogehter. The raid6 rmw path should work the same as the already existing raid5 logic. So emulate the prexor handling/flags and split functions as needed. 1) Enable xor_syndrome() in the async layer. 2) Split ops_run_prexor() into RAID4/5 and RAID6 logic. Xor the syndrome at the start of a rmw run as we did it before for the single parity. 3) Take care of rmw run in ops_run_reconstruct6(). Again process only the changed pages to get syndrome back into sync. 4) Enhance set_syndrome_sources() to fill NULL pages if we are in a rmw run. The lower layers will calculate start & end pages from that and call the xor_syndrome() correspondingly. 5) Adapt the several places where we ignored Q handling up to now. Performance numbers for a single E5630 system with a mix of 10 7200k desktop/server disks. 300 seconds random write with 8 threads onto a 3,2TB (10*400GB) RAID6 64K chunk without spare (group_thread_cnt=4) bsize rmw_level=1 rmw_level=0 rmw_level=1 rmw_level=0 skip_copy=1 skip_copy=1 skip_copy=0 skip_copy=0 4K 115 KB/s 141 KB/s 165 KB/s 140 KB/s 8K 225 KB/s 275 KB/s 324 KB/s 274 KB/s 16K 434 KB/s 536 KB/s 640 KB/s 534 KB/s 32K 751 KB/s 1,051 KB/s 1,234 KB/s 1,045 KB/s 64K 1,339 KB/s 1,958 KB/s 2,282 KB/s 1,962 KB/s 128K 2,673 KB/s 3,862 KB/s 4,113 KB/s 3,898 KB/s 256K 7,685 KB/s 7,539 KB/s 7,557 KB/s 7,638 KB/s 512K 19,556 KB/s 19,558 KB/s 19,652 KB/s 19,688 Kb/s Signed-off-by: NMarkus Stockhausen <stockhausen@collogia.de> Signed-off-by: NNeilBrown <neilb@suse.de>
-
由 shli@kernel.org 提交于
expansion/resync can grab a stripe when the stripe is in batch list. Since all stripes in batch list must be in the same state, we can't allow some stripes run into expansion/resync. So we delay expansion/resync for stripe in batch list. Signed-off-by: NShaohua Li <shli@fusionio.com> Signed-off-by: NNeilBrown <neilb@suse.de>
-
由 shli@kernel.org 提交于
If io error happens in any stripe of a batch list, the batch list will be split, then normal process will run for the stripes in the list. Signed-off-by: NShaohua Li <shli@fusionio.com> Signed-off-by: NNeilBrown <neilb@suse.de>
-
由 shli@kernel.org 提交于
stripe cache is 4k size. Even adjacent full stripe writes are handled in 4k unit. Idealy we should use big size for adjacent full stripe writes. Bigger stripe cache size means less stripes runing in the state machine so can reduce cpu overhead. And also bigger size can cause bigger IO size dispatched to under layer disks. With below patch, we will automatically batch adjacent full stripe write together. Such stripes will be added to the batch list. Only the first stripe of the list will be put to handle_list and so run handle_stripe(). Some steps of handle_stripe() are extended to cover all stripes of the list, including ops_run_io, ops_run_biodrain and so on. With this patch, we have less stripes running in handle_stripe() and we send IO of whole stripe list together to increase IO size. Stripes added to a batch list have some limitations. A batch list can only include full stripe write and can't cross chunk boundary to make sure stripes have the same parity disks. Stripes in a batch list must be in the same state (no written, toread and so on). If a stripe is in a batch list, all new read/write to add_stripe_bio will be blocked to overlap conflict till the batch list is handled. The limitations will make sure stripes in a batch list be in exactly the same state in the life circly. I did test running 160k randwrite in a RAID5 array with 32k chunk size and 6 PCIe SSD. This patch improves around 30% performance and IO size to under layer disk is exactly 32k. I also run a 4k randwrite test in the same array to make sure the performance isn't changed with the patch. Signed-off-by: NShaohua Li <shli@fusionio.com> Signed-off-by: NNeilBrown <neilb@suse.de>
-
由 shli@kernel.org 提交于
Track overwrite disk count, so we can know if a stripe is a full stripe write. Signed-off-by: NShaohua Li <shli@fusionio.com> Signed-off-by: NNeilBrown <neilb@suse.de>
-
由 shli@kernel.org 提交于
A freshly new stripe with write request can be batched. Any time the stripe is handled or new read is queued, the flag will be cleared. Signed-off-by: NShaohua Li <shli@fusionio.com> Signed-off-by: NNeilBrown <neilb@suse.de>
-