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path: root/drivers/gpu/drm/amd/amdgpu
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2016-09-07drm/amdgpu: record error code when ring test failedChunming Zhou1-2/+3
commit 1f703e6679f373f5bba4efe7093aa82e91af4037 upstream. Otherwise we may miss errors. Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-07drm/amd/amdgpu: compute ring test fail during S4 on CIjimqu1-3/+9
commit 53960b4f89db58bc155d6f8aa0a44ccc59ccb26f upstream. unhalt Instrction Fetch Unit after all rings are inited. Signed-off-by: JimQu <Jim.Qu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-07drm/amd/amdgpu: sdma resume fail during S4 on CIjimqu1-0/+3
commit 10ea9434065e56fe14287f89258ecf2fb684ed1a upstream. SDMA could be fail in the thaw() and restore() processes, do software reset if each SDMA engine is busy. Signed-off-by: JimQu <Jim.Qu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-07drm/amdgpu: skip TV/CV in display parsingAlex Deucher1-0/+7
commit 611a1507fe8569ce1adab3abc982ea58ab559fb9 upstream. No asics supported by amdgpu support analog TV. Workaround for bug: https://bugs.freedesktop.org/show_bug.cgi?id=97460 Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-07drm/amdgpu: avoid a possible array overflowAlex Deucher1-0/+6
commit e1718d97aa88ea44a6a8f50ff464253dd0dacf01 upstream. When looking up the connector type make sure the index is valid. Avoids a later crash if we read past the end of the array. Workaround for bug: https://bugs.freedesktop.org/show_bug.cgi?id=97460 Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-07drm/amdgpu: fix lru size grouping v2Christian König2-0/+10
commit 5661538749511d4c2f7d33e1e179f10c545b24d5 upstream. Adding a BO can make it the insertion point for larger sizes as well. v2: add a comment about the guard structure. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Felix Kuehling <felix.kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-07drm/amdgpu: fix amdgpu_move_blit on 32bit systemsChristian König1-2/+2
commit 815d27a46f3119f74fe01fe10bf683aa5bc55597 upstream. This bug seems to be present for a very long time. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-07drm/amdgpu: Change GART offset to 64-bitFelix Kuehling2-4/+4
commit cab0b8d50e9bbef62c04067072c953433a87a9ff upstream. The GART aperture size can be bigger than 4GB. Therefore the offset used in amdgpu_gart_bind and amdgpu_gart_unbind must be 64-bit. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-20drm/amdgpu/gmc7: add missing mullins caseAlex Deucher1-0/+1
commit 7f555c8e5a84b348c2b76f4ca78eae7222354c03 upstream. Looks like this got missed when we ported the code from radeon. Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-20drm/amdgpu: fix firmware info version checksAlex Deucher1-17/+8
commit a8a04c994d41a489eb0f2899893209e04e030153 upstream. Some of the checks didn't handle frev 2 tables properly. amdgpu doesn't support any tables pre-frev 2, so drop the checks. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-20drm/amdgpu: Disable RPM helpers while reprobing connectors on resumeLyude1-0/+16
commit 23a1a9e54e71593fe5657e883662995d181d2d6b upstream. Just about all of amdgpu's connector probing functions try to acquire runtime PM refs. If we try to do this in the context of amdgpu_resume_kms by calling drm_helper_hpd_irq_event(), we end up deadlocking the system. Since we're guaranteed to be holding the spinlock for RPM in amdgpu_resume_kms, and we already know the GPU is in working order, we need to prevent the RPM helpers from trying to run during the initial connector reprobe on resume. There's a couple of solutions I've explored for fixing this, but this one by far seems to be the simplest and most reliable (plus I'm pretty sure that's what disable_depth is there for anyway). Reproduction recipe: - Get any laptop dual GPUs using PRIME - Make sure runtime PM is enabled for amdgpu - Boot the machine - If the machine managed to boot without hanging, switch out of X to another VT. This should definitely cause X to hang infinitely. Changes since v1: - add appropriate #ifdef checks for CONFIG_PM. This is not very useful, but it appears some kernel test suites test compiling amdgpu with CONFIG_PM disabled, which results in this patch breaking the builds if we don't include this #ifdef Cc: Alex Deucher <alexdeucher@gmail.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Lyude <cpaul@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-20drm/amdgpu: support backlight control for UNIPHY3Alex Deucher1-0/+1
commit dba6c4fa26ccf47661be5b68dba87e746fa137d8 upstream. Same interface as other UNIPHY blocks Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-20drm/amdgpu: Poll for both connect/disconnect on analog connectorsLyude1-3/+4
commit b636a1b3d624b49b23cc1be2f9f6bcbb89aca855 upstream. DRM_CONNECTOR_POLL_CONNECT only enables polling for connections, not disconnections. Because of this, we end up losing hotplug polling for analog connectors once they get connected. Easy way to reproduce: - Grab a machine with an AMD GPU and a VGA port - Plug a monitor into the VGA port, wait for it to update the connector from disconnected to connected - Disconnect the monitor on VGA, a hotplug event is never sent for the removal of the connector. Originally, only using DRM_CONNECTOR_POLL_CONNECT might have been a good idea since doing VGA polling can sometimes result in having to mess with the DAC voltages to figure out whether or not there's actually something there since VGA doesn't have HPD. Doing this would have the potential of showing visible artifacts on the screen every time we ran a poll while a VGA display was connected. Luckily, amdgpu_vga_detect() only resorts to this sort of polling if the poll is forced, and DRM's polling helper doesn't force it's polls. Additionally, this removes some assignments to connector->polled that weren't actually doing anything. Signed-off-by: Lyude <cpaul@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-20drm/amdgpu: add a delay after ATPX dGPU power offAlex Deucher1-0/+5
commit f81eb1a349d47694fe1e688336ca1b40ea3e248a upstream. ATPX dGPU power control requires a 200ms delay between power off and on. This should fix dGPU failures on resume from power off. Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-07-14drm/amdgpu: fix power distribution issue for Polaris10 XTKen Wang3-0/+22
Signed-off-by: Ken Wang <Qingqing.Wang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-07-14drm/amdgpu: Add a missing register to Polaris golden settingKen Wang1-0/+2
Signed-off-by: Ken Wang <Qingqing.Wang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-29drm/amd/powerplay: workaround for UVD clock issueRex Zhu1-0/+4
workaround issue that when uvd dpm disabled, uvd clock remain high on polaris10. Manually turn off the clocks. Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Reviewed-by: Ken Wang <Qingqing.Wang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-29drm/amdgpu: add ACLK_CNTL setting for polaris10Ken Wang1-0/+3
This is a temporary workaround for early boards. Signed-off-by: Ken Wang <Qingqing.Wang@amd.com> Reviewed-by: Rex Zhu <Rex.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-21drm/amdgpu/gfx8: update golden setting for polaris10Rex Zhu1-1/+2
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-21drm/amdgpu: initialize amdgpu_cgs_acpi_eval_object result valueNicolas Iooss1-1/+1
amdgpu_cgs_acpi_eval_object() returned the value of variable "result" without initializing it first. This bug has been found by compiling the kernel with clang. The compiler complained: drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:972:14: error: variable 'result' is used uninitialized whenever 'for' loop exits because its condition is false [-Werror,-Wsometimes-uninitialized] for (i = 0; i < count; i++) { ^~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:1011:9: note: uninitialized use occurs here return result; ^~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:972:14: note: remove the condition if it is always true for (i = 0; i < count; i++) { ^~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:864:12: note: initialize the variable 'result' to silence this warning int result; ^ = 0 Fixes: 3f1d35a03b3c ("drm/amdgpu: implement new cgs interface for acpi function") Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-21drm/amdgpu: precedence bug in amdgpu_device_init()Dan Carpenter1-1/+1
! has higher precedence than bitwise & so we need to add parenthesis for this to work as intended. Fixes: 048765ad5af7 ('amdgpu: fix asic initialization for virtualized environments (v2)') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-17drm/amdgpu: fix num_rbs exposed to userspace (v2)Alex Deucher1-1/+2
This was accidently broken for harvest cards when the code was refactored for Polaris support. v2: multiply by shader engines. Noticed by Nicolai. Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2016-06-17drm/amdgpu: missing bounds check in amdgpu_set_pp_force_state()Dan Carpenter1-15/+13
There is no limit on high "idx" can go. It should be less than ARRAY_SIZE(data.states) which is 16. The "data" variable wasn't declared in that scope so I shifted the code around a bit to make it work. Also I made "idx" unsigned. Fixes: f3898ea12fc1 ('drm/amd/powerplay: add some sysfs interfaces for powerplay.') Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-14Revert "drm/amdgpu: add pipeline sync while vmid switch in same ctx"Alex Deucher3-13/+6
This reverts commit 2ba272d7bde27e1db2cf1c6cee49b01b7ea08989. The issue fixed by this patch is specific to compute rings and the previous patch was enough. Additionally, this patch as been traced to strange behavior on some CZ systems so we might as well drop it.
2016-06-14drm/amdgpu/gfx7: fix broken condition checkAlex Deucher1-1/+1
Wrong operator. Reported-by: David Binderman <linuxdev.baldrick@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2016-06-13amdgpu: fix asic initialization for virtualized environments (v2)Andres Rodriguez4-1/+45
When executing in a PCI passthrough based virtuzliation environemnt, the hypervisor will usually attempt to send a PCIe bus reset signal to the ASIC when the VM reboots. In this scenario, the card is not correctly initialized, but we still consider it to be posted. Therefore, in a passthrough based environemnt we should always post the card to guarantee it is in a good state for driver initialization. However, if we are operating in SR-IOV mode it is up to the GIM driver to manage the asic state, therefore we should not post the card (and shouldn't be able to do it either). v2: add missing semi-colon Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Andres Rodriguez <andres.rodriguez@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-10drm/amdgpu: fix warning with powerplay disabled.Dave Airlie1-1/+1
This just fixes a warning when you disable powerplay. Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-06-09drm/amdgpu: add release firmware for cgsMonk Liu1-0/+12
Powerplay uses cgs to load the firmware so add a function to release it as well to avoid leaking it on driver unload. Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix cik sdma ucode memleakMonk Liu1-0/+11
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix sdma24 ucode mem leakMonk Liu1-0/+10
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix sdma3 ucode mem leakMonk Liu1-0/+10
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix uvd fini mem leakMonk Liu1-9/+10
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix gfx 7 ucode mem leakMonk Liu1-0/+17
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix gfx8 ucode mem leakMonk Liu1-1/+21
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix missing free wb for cond_execMonk Liu1-0/+1
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix mem leak in atombiosMonk Liu1-1/+3
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: add pipeline sync while vmid switch in same ctxChunming Zhou3-6/+13
Since vmid-mgr supports vmid sharing in one vm, the same ctx could get different vmids for two emits without vm flush, vm_flush could be done in another ring. Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: vBIOS post only call when mem_size zeroMonk Liu1-2/+1
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: modify sdma start sequenceMonk Liu3-8/+24
should fist halt engine, and then doing the register programing, and later unhalt engine, and finally run ring_test. this help fix reloading driver hang issue of SDMA ring original sequence is wrong for it programing engine after unhalt, which will lead to fault behavior when doing driver reloading after unloaded. Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: init more register for sdmaMonk Liu3-0/+6
This help fix reloading driver hang issue of SDMA ring Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: clear SA bo when createdMonk Liu1-0/+1
This help fix reloading driver hang issue of SDMA ring Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix fw leak in non-powerplay dpm codeAlex Deucher4-0/+18
We need to release the firmware on driver tear down. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix pplib finish bugMonk Liu2-7/+5
1,should use late_fini to kfree all resource otherwise the released pointer maybe accessed in IRQ ip fini routine. 2,hwmgr should not be kfree by pem_fini which is invoked by hw fini path. Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: impl late_fini for amdgpu_pp_ipMonk Liu1-0/+17
This implements late_init support for powerplay. Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu/iceland: Set SC_PA_RASTER_CONFIG according to different RB enabledKen Wang1-1/+5
fix the raster config setting for different iceland configs. Signed-off-by: Ken Wang <Qingqing.Wang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-05-27Merge branch 'drm-next-4.7' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie14-92/+123
into drm-next AMD GPU bugfixes: - Various powerplay bug fixes - Add some new polaris pci ids - misc bug fixes and code cleanups * 'drm-next-4.7' of git://people.freedesktop.org/~agd5f/linux: (27 commits) drm/amd: add Kconfig dependency for ACP on DRM_AMDGPU drm/amdgpu: Fix hdmi deep color support. drm/amdgpu: fix bug in fence driver fini drm/amd/powerplay/hwmgr: use kmemdup drm/amd/powerplay/hwmgr: use kmemdup drm/amd/powerplay/hwmgr: use kmemdup drm/amd/powerplay: fix bugs of checking if dpm is running on Tonga drm/amdgpu: update Polaris11 golden setting drm/amdgpu: Add more Polaris 11 PCI IDs drm/amdgpu: update Polaris10 golden setting drm/amdgpu: add more Polaris10 DID drm/amd/amdgpu : Remove unused variable drm/amd/amdgpu : Remove unused variable drm/amd/amdgpu : Remove unused variable drm/amd/amdgpu/cz_dpm: Remove unused variable drm/amd/amdgpu : Remove unused variable drm/amd/powerplay: use ARRAY_SIZE() to calculate array size. drm/amdgpu: fix array out of bounds drm/radeon: fix array out of bounds drm/amd/powerplay: fix a bug on updating sclk for Tonga ...
2016-05-25drm/amdgpu: Fix hdmi deep color support.Mario Kleiner1-5/+5
When porting the hdmi deep color detection code from radeon-kms to amdgpu-kms apparently some kind of copy and paste error happened, attaching an else branch to the wrong if statement. The result is that hdmi deep color mode is always disabled, regardless of gpu and display capabilities and user wishes, as the code mistakenly thinks that the display doesn't provide the required max_tmds_clock limit and falls back to 8 bpc. This patch fixes deep color support, as tested on a R9 380 Tonga Pro + suitable display, and should be backported to all kernels with amdgpu-kms support. Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Cc: stable@vger.kernel.org Cc: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-05-25drm/amdgpu: fix bug in fence driver finiMonk Liu1-1/+1
Using wrong counter for walking fences. Fixes a crash when unloading the driver. Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-05-24Merge branch 'akpm' (patches from Andrew)Linus Torvalds1-1/+4
Merge yet more updates from Andrew Morton: - Oleg's "wait/ptrace: assume __WALL if the child is traced". It's a kernel-based workaround for existing userspace issues. - A few hotfixes - befs cleanups - nilfs2 updates - sys_wait() changes - kexec updates - kdump - scripts/gdb updates - the last of the MM queue - a few other misc things * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (84 commits) kgdb: depends on VT drm/amdgpu: make amdgpu_mn_get wait for mmap_sem killable drm/radeon: make radeon_mn_get wait for mmap_sem killable drm/i915: make i915_gem_mmap_ioctl wait for mmap_sem killable uprobes: wait for mmap_sem for write killable prctl: make PR_SET_THP_DISABLE wait for mmap_sem killable exec: make exec path waiting for mmap_sem killable aio: make aio_setup_ring killable coredump: make coredump_wait wait for mmap_sem for write killable vdso: make arch_setup_additional_pages wait for mmap_sem for write killable ipc, shm: make shmem attach/detach wait for mmap_sem killable mm, fork: make dup_mmap wait for mmap_sem for write killable mm, proc: make clear_refs killable mm: make vm_brk killable mm, elf: handle vm_brk error mm, aout: handle vm_brk failures mm: make vm_munmap killable mm: make vm_mmap killable mm: make mmap_sem for write waits killable for mm syscalls MAINTAINERS: add co-maintainer for scripts/gdb ...
2016-05-24drm/amdgpu: make amdgpu_mn_get wait for mmap_sem killableMichal Hocko1-1/+4
amdgpu_mn_get which is called during ioct path relies on mmap_sem for write. If the waiting task gets killed by the oom killer it would block oom_reaper from asynchronous address space reclaim and reduce the chances of timely OOM resolving. Wait for the lock in the killable mode and return with EINTR if the task got killed while waiting. [arnd@arndb.de: use ERR_PTR() to return from amdgpu_mn_get] Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Christian König <christian.koenig@amd.com> Cc: David Airlie <airlied@linux.ie> Cc: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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