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2021-11-18drm/plane-helper: fix uninitialized variable referenceAlex Xu (Hello71)1-1/+0
[ Upstream commit 7be28bd73f23e53d6e7f5fe891ba9503fc0c7210 ] drivers/gpu/drm/drm_plane_helper.c: In function 'drm_primary_helper_update': drivers/gpu/drm/drm_plane_helper.c:113:32: error: 'visible' is used uninitialized [-Werror=uninitialized] 113 | struct drm_plane_state plane_state = { | ^~~~~~~~~~~ drivers/gpu/drm/drm_plane_helper.c:178:14: note: 'visible' was declared here 178 | bool visible; | ^~~~~~~ cc1: all warnings being treated as errors visible is an output, not an input. in practice this use might turn out OK but it's still UB. Fixes: df86af9133b4 ("drm/plane-helper: Add drm_plane_helper_check_state()") Reviewed-by: Simon Ser <contact@emersion.fr> Signed-off-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patchwork.freedesktop.org/patch/msgid/20211007063706.305984-1-alex_y_xu@yahoo.ca Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/bridge/lontium-lt9611uxc: fix provided connector suportDmitry Baryshkov1-3/+6
[ Upstream commit 15184965783aab3ca7ee4f939e2598943b3f40f9 ] - set DRM_CONNECTOR_POLL_HPD as the connector will generate hotplug events on its own - do not call drm_kms_helper_hotplug_event() unless mode_config.funcs pointer is not NULL to remove possible kernel oops. Fixes: bc6fa8676ebb ("drm/bridge/lontium-lt9611uxc: move HPD notification out of IRQ handler") Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210708230329.395976-1-dmitry.baryshkov@linaro.org Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/amdgpu/gmc6: fix DMA mask from 44 to 40 bitsAlex Deucher1-2/+2
[ Upstream commit 403475be6d8b122c3e6b8a47e075926d7299e5ef ] The DMA mask on SI parts is 40 bits not 44. Copy paste typo. Fixes: 244511f386ccb9 ("drm/amdgpu: simplify and cleanup setting the dma mask") Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1762 Acked-by: Christian König <christian.koenig@amd.com> Tested-by: Paul Menzel <pmenzel@molgen.mpg.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/amdgpu: fix a potential memory leak in amdgpu_device_fini_sw()Lang Yu1-1/+1
[ Upstream commit a5c5d8d50ecf5874be90a76e1557279ff8a30c9e ] amdgpu_fence_driver_sw_fini() should be executed before amdgpu_device_ip_fini(), otherwise fence driver resource won't be properly freed as adev->rings have been tore down. Fixes: 72c8c97b1522 ("drm/amdgpu: Split amdgpu_device_fini into early and late") Signed-off-by: Lang Yu <lang.yu@amd.com> Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/msm/dsi: fix wrong type in msm_dsi_hostJessica Zhang1-12/+12
[ Upstream commit 409af447c2a0a6e08ba190993a1153c91d3b11bd ] Change byte_clk_rate, pixel_clk_rate, esc_clk_rate, and src_clk_rate from u32 to unsigned long, since clk_get_rate() returns an unsigned long. Fixes: a6bcddbc2ee1 ("drm/msm: dsi: Handle dual-channel for 6G as well") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jessica Zhang <jesszhan@codeaurora.org> Link: https://lore.kernel.org/r/20211020183438.32263-1-jesszhan@codeaurora.org Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/msm: Fix potential NULL dereference in DPU SSPPJessica Zhang1-3/+5
[ Upstream commit 8bf71a5719b6cc5b6ba358096081e5d50ea23ab6 ] Move initialization of sblk in _sspp_subblk_offset() after NULL check to avoid potential NULL pointer dereference. Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jessica Zhang <jesszhan@codeaurora.org> Link: https://lore.kernel.org/r/20211020175733.3379-1-jesszhan@codeaurora.org Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/amdkfd: Fix an inappropriate error handling in allloc memory of gpuLang Yu1-1/+1
[ Upstream commit 5aeeac6fa38fca450faed9770f75b1470c0e2073 ] We should unreference a gem object instead of an amdgpu bo here. Fixes: fd9a9f8801de ("drm/amdgpu: Use GEM obj reference for KFD BOs") Signed-off-by: Lang Yu <lang.yu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/msm: uninitialized variable in msm_gem_import()Dan Carpenter1-2/+2
[ Upstream commit 2203bd0e5c12ffc53ffdd4fbd7b12d6ba27e0424 ] The msm_gem_new_impl() function cleans up after itself so there is no need to call drm_gem_object_put(). Conceptually, it does not make sense to call a kref_put() function until after the reference counting has been initialized which happens immediately after this call in the drm_gem_(private_)object_init() functions. In the msm_gem_import() function the "obj" pointer is uninitialized, so it will lead to a crash. Fixes: 05b849111c07 ("drm/msm: prime support") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20211013081315.GG6010@kili Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/msm: fix potential NULL dereference in cleanupDan Carpenter1-0/+1
[ Upstream commit 027d052a36e56789a2134772bacb4fd0860f03a3 ] The "msm_obj->node" list needs to be initialized earlier so that the list_del() in msm_gem_free_object() doesn't experience a NULL pointer dereference. Fixes: 6ed0897cd800 ("drm/msm: Fix debugfs deadlock") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20211013081133.GF6010@kili Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/msm: unlock on error in get_sched_entity()Dan Carpenter1-0/+1
[ Upstream commit 7425e8167507fe512d8ac0825acda4aebf0a7ca0 ] Add a missing unlock on the error path if drm_sched_entity_init() fails. Fixes: 68002469e571 ("drm/msm: One sched entity per process per priority") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20211011124005.GE15188@kili Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/msm: potential error pointer dereference in init()Dan Carpenter1-0/+4
[ Upstream commit b6816441a14bbe356ba8590de79cfea2de6a085c ] The msm_iommu_new() returns error pointers on failure so check for that to avoid an Oops. Fixes: ccac7ce373c1 ("drm/msm: Refactor address space initialization") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20211004103806.GD25015@kili Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/msm: Fix potential Oops in a6xx_gmu_rpmh_init()Dan Carpenter1-3/+3
[ Upstream commit 3d91e50ff58364f6572ad268b508175d27800e51 ] There are two problems here: 1) The "seqptr" is used uninitalized when we free it at the end. 2) The a6xx_gmu_get_mmio() function returns error pointers. It never returns true. Fixes: 64245fc55172 ("drm/msm/a6xx: use AOP-initialized PDC for a650") Fixes: f8fc924e088e ("drm/msm/a6xx: Fix PDC register overlap") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20211004134530.GB11689@kili Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/msm/dsi: do not enable irq handler before powering up the hostDmitry Baryshkov3-17/+49
[ Upstream commit bf94ec093d05e3ed3142d9291b876eeb9997ba5c ] The DSI host might be left in some state by the bootloader. If this state generates an IRQ, it might hang the system by holding the interrupt line before the driver sets up the DSI host to the known state. Move the request_irq into msm_dsi_host_init and pass IRQF_NO_AUTOEN to it. Call enable/disable_irq after msm_dsi_host_power_on/_off() functions, so that we can be sure that the interrupt is delivered when the host is in the known state. It is not possible to defer the interrupt enablement to a later point, because drm_panel_prepare might need to communicate with the panel over the DSI link and that requires working interrupt. Fixes: a689554ba6ed ("drm/msm: Initial add DSI connector support") Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> Link: https://lore.kernel.org/r/20211002010830.647416-1-dmitry.baryshkov@linaro.org Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm: fb_helper: fix CONFIG_FB dependencyArnd Bergmann1-1/+1
[ Upstream commit 606b102876e3741851dfb09d53f3ee57f650a52c ] With CONFIG_FB=m and CONFIG_DRM=y, we get a link error in the fb helper: aarch64-linux-ld: drivers/gpu/drm/drm_fb_helper.o: in function `drm_fb_helper_alloc_fbi': (.text+0x10cc): undefined reference to `framebuffer_alloc' Tighten the dependency so it is only allowed in the case that DRM can link against FB. Fixes: f611b1e7624c ("drm: Avoid circular dependencies for CONFIG_FB") Link: https://lore.kernel.org/all/20210721152211.2706171-1-arnd@kernel.org/ Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210927142816.2069269-1-arnd@kernel.org Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/amdgpu: fix warning for overflow checkArnd Bergmann2-2/+2
[ Upstream commit 335aea75b0d95518951cad7c4c676e6f1c02c150 ] The overflow check in amdgpu_bo_list_create() causes a warning with clang-14 on 64-bit architectures, since the limit can never be exceeded. drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c:74:18: error: result of comparison of constant 256204778801521549 with expression of type 'unsigned int' is always false [-Werror,-Wtautological-constant-out-of-range-compare] if (num_entries > (SIZE_MAX - sizeof(struct amdgpu_bo_list)) ~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The check remains useful for 32-bit architectures, so just avoid the warning by using size_t as the type for the count. Fixes: 920990cb080a ("drm/amdgpu: allocate the bo_list array after the list") Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/ttm: stop calling tt_swapin in vm_accessMatthew Auld1-5/+0
[ Upstream commit f5d28856b89baab4232a9f841e565763fcebcdf9 ] In commit: commit 09ac4fcb3f255e9225967c75f5893325c116cdbe Author: Felix Kuehling <Felix.Kuehling@amd.com> Date: Thu Jul 13 17:01:16 2017 -0400 drm/ttm: Implement vm_operations_struct.access v2 we added the vm_access hook, where we also directly call tt_swapin for some reason. If something is swapped-out then the ttm_tt must also be unpopulated, and since access_kmap should also call tt_populate, if needed, then swapping-in will already be handled there. If anything, calling tt_swapin directly here would likely always fail since the tt->pages won't yet be populated, or worse since the tt->pages array is never actually cleared in unpopulate this might lead to a nasty uaf. Fixes: 09ac4fcb3f25 ("drm/ttm: Implement vm_operations_struct.access v2") Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: Christian König <christian.koenig@amd.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210927114114.152310-1-matthew.auld@intel.com Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/amdgpu: move amdgpu_virt_release_full_gpu to fini_early stageGuchun Chen1-4/+5
[ Upstream commit 6effad8abe0ba4db3d9c58ed585127858a990f35 ] adev->rmmio is set to be NULL in amdgpu_device_unmap_mmio to prevent access after pci_remove, however, in SRIOV case, amdgpu_virt_release_full_gpu will still use adev->rmmio for access after amdgpu_device_unmap_mmio. The patch is to move such SRIOV calling earlier to fini_early stage. Fixes: 07775fc13878 ("drm/amdgpu: Unmap all MMIO mappings") Cc: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Signed-off-by: Leslie Shi <Yuliang.Shi@amd.com> Signed-off-by: Guchun Chen <guchun.chen@amd.com> Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/amd/display: Pass display_pipe_params_st as const in DMLHarry Wentland12-120/+120
[ Upstream commit 22667e6ec6b2ce9ca706e9061660b059725d009c ] [Why] This neither needs to be on the stack nor passed by value to each function call. In fact, when building with clang it seems to break the Linux's default 1024 byte stack frame limit. [How] We can simply pass this as a const pointer. This patch fixes these Coverity IDs Addresses-Coverity-ID: 1424031: ("Big parameter passed by value") Addresses-Coverity-ID: 1423970: ("Big parameter passed by value") Addresses-Coverity-ID: 1423941: ("Big parameter passed by value") Addresses-Coverity-ID: 1451742: ("Big parameter passed by value") Addresses-Coverity-ID: 1451887: ("Big parameter passed by value") Addresses-Coverity-ID: 1454146: ("Big parameter passed by value") Addresses-Coverity-ID: 1454152: ("Big parameter passed by value") Addresses-Coverity-ID: 1454413: ("Big parameter passed by value") Addresses-Coverity-ID: 1466144: ("Big parameter passed by value") Addresses-Coverity-ID: 1487237: ("Big parameter passed by value") Signed-off-by: Harry Wentland <harry.wentland@amd.com> Fixes: 3fe617ccafd6 ("Enable '-Werror' by default for all kernel builds") Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: amd-gfx@lists.freedesktop.org Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org> Cc: Arnd Bergmann <arnd@kernel.org> Cc: Leo Li <sunpeng.li@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Cc: Xinhui Pan <Xinhui.Pan@amd.com> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Guenter Roeck <linux@roeck-us.net> Cc: llvm@lists.linux.dev Acked-by: Christian König <christian.koenig@amd.com> Build-tested-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/amdgpu: Fix crash on device remove/driver unloadAndrey Grodzovsky7-90/+105
[ Upstream commit d82e2c249c8ffaec20fa618611ea2ab4dcfd4d01 ] Crash: BUG: unable to handle page fault for address: 00000000000010e1 RIP: 0010:vega10_power_gate_vce+0x26/0x50 [amdgpu] Call Trace: pp_set_powergating_by_smu+0x16a/0x2b0 [amdgpu] amdgpu_dpm_set_powergating_by_smu+0x92/0xf0 [amdgpu] amdgpu_dpm_enable_vce+0x2e/0xc0 [amdgpu] vce_v4_0_hw_fini+0x95/0xa0 [amdgpu] amdgpu_device_fini_hw+0x232/0x30d [amdgpu] amdgpu_driver_unload_kms+0x5c/0x80 [amdgpu] amdgpu_pci_remove+0x27/0x40 [amdgpu] pci_device_remove+0x3e/0xb0 device_release_driver_internal+0x103/0x1d0 device_release_driver+0x12/0x20 pci_stop_bus_device+0x79/0xa0 pci_stop_and_remove_bus_device_locked+0x1b/0x30 remove_store+0x7b/0x90 dev_attr_store+0x17/0x30 sysfs_kf_write+0x4b/0x60 kernfs_fop_write_iter+0x151/0x1e0 Why: VCE/UVD had dependency on SMC block for their suspend but SMC block is the first to do HW fini due to some constraints How: Since the original patch was dealing with suspend issues move the SMC block dependency back into suspend hooks as was done in V1 of the original patches. Keep flushing idle work both in suspend and HW fini seuqnces since it's essential in both cases. Fixes: 859e4659273f1d ("drm/amdgpu: add missing cleanups for more ASICs on UVD/VCE suspend") Fixes: bf756fb833cbe8 ("drm/amdgpu: add missing cleanups for Polaris12 UVD/VCE on suspend") Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm: bridge: it66121: Fix return value it66121_probeAlex Bee1-2/+14
[ Upstream commit f3bc07eba481942a246926c5b934199e7ccd567b ] Currently it66121_probe returns -EPROBE_DEFER if the there is no remote endpoint found in the device tree which doesn't seem helpful, since this is not going to change later and it is never checked if the next bridge has been initialized yet. It will fail in that case later while doing drm_bridge_attach for the next bridge in it66121_bridge_attach. Since the bindings documentation for it66121 bridge driver states there has to be a remote endpoint defined, its safe to return -EINVAL in that case. This additonally adds a check, if the remote endpoint is enabled and returns -EPROBE_DEFER, if the remote bridge hasn't been initialized (yet). Fixes: 988156dc2fc9 ("drm: bridge: add it66121 driver") Signed-off-by: Alex Bee <knaerzche@gmail.com> Signed-off-by: Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210918140420.231346-1-knaerzche@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18virtio-gpu: fix possible memory allocation failureliuyuntao1-7/+1
[ Upstream commit 5bd4f20de8acad37dbb3154feb34dbc36d506c02 ] When kmem_cache_zalloc in virtio_gpu_get_vbuf fails, it will return an error code. But none of its callers checks this error code, and a core dump will take place. Considering many of its callers can't handle such error, I add a __GFP_NOFAIL flag when calling kmem_cache_zalloc to make sure it won't fail, and delete those unused error handlings. Fixes: dc5698e80cf724 ("Add virtio gpu driver.") Signed-off-by: Yuntao Liu <liuyuntao10@huawei.com> Link: http://patchwork.freedesktop.org/patch/msgid/20210828104321.3410312-1-liuyuntao10@huawei.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/v3d: fix wait for TMU write combiner flushIago Toral Quiroga1-2/+2
[ Upstream commit e4f868191138975f2fdf2f37c11318b47db4acc9 ] The hardware sets the TMUWCF bit back to 0 when the TMU write combiner flush completes so we should be checking for that instead of the L2TFLS bit. v2 (Melissa Wen): - Add Signed-off-by and Fixes tags. - Change the error message for the timeout to be more clear. Fixes spurious Vulkan CTS failures in: dEQP-VK.binding_model.descriptorset_random.* Fixes: d223f98f02099 ("drm/v3d: Add support for compute shader dispatch.") Signed-off-by: Iago Toral Quiroga <itoral@igalia.com> Reviewed-by: Melissa Wen <mwen@igalia.com> Signed-off-by: Melissa Wen <melissa.srw@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210915100507.3945-1-itoral@igalia.com Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/bridge: it66121: Wait for next bridge to be probedPaul Cercueil1-0/+3
[ Upstream commit 8b03e3fc79189b17d31a82f5e175698802a11e87 ] If run before the next bridge is initialized, of_drm_find_bridge() will give us a NULL pointer. If that's the case, return -EPROBE_DEFER; we may have more luck next time. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Fixes: 988156dc2fc9 ("drm: bridge: add it66121 driver") Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210827163956.27517-2-paul@crapouillou.net Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/bridge: it66121: Initialize {device,vendor}_idsPaul Cercueil1-1/+1
[ Upstream commit 3a5f3d61de657bc1c2b53b77d065c5526f982e10 ] These two arrays are populated with data read from the I2C device through regmap_read(), and the data is then compared with hardcoded vendor/product ID values of supported chips. However, the return value of regmap_read() was never checked. This is fine, as long as the two arrays are zero-initialized, so that we don't compare the vendor/product IDs against whatever garbage is left on the stack. Address this issue by zero-initializing these two arrays. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Fixes: 988156dc2fc9 ("drm: bridge: add it66121 driver") Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210827163956.27517-1-paul@crapouillou.net Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/bridge: anx7625: Propagate errors from sp_tx_rst_aux()Robert Foss1-4/+8
[ Upstream commit 7f16d0f3b8e2d13f940e944cd17044ca8eeb8b32 ] The return value of sp_tx_rst_aux() is not propagated, which means both compiler warnings and potential errors not being handled. Fixes: 8bdfc5dae4e3 ("drm/bridge: anx7625: Add anx7625 MIPI DSI/DPI to DP") Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210818171318.1848272-1-robert.foss@linaro.org Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/amd/display: dcn20_resource_construct reduce scope of FPU enabledAnson Jacob1-7/+9
[ Upstream commit bc39a69a2ac484e6575a958567c162ef56c9f278 ] Limit when FPU is enabled to only functions that does FPU operations for dcn20_resource_construct, which gets called during driver initialization. Enabling FPU operation disables preemption. Sleeping functions(mutex (un)lock, memory allocation using GFP_KERNEL, etc.) should not be called when preemption is disabled. Fixes the following case caught by enabling CONFIG_DEBUG_ATOMIC_SLEEP in kernel config [ 1.338434] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:281 [ 1.347395] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 197, name: systemd-udevd [ 1.356356] CPU: 7 PID: 197 Comm: systemd-udevd Not tainted 5.13.0+ #3 [ 1.356358] Hardware name: System manufacturer System Product Name/PRIME X570-PRO, BIOS 3405 02/01/2021 [ 1.356360] Call Trace: [ 1.356361] dump_stack+0x6b/0x86 [ 1.356366] ___might_sleep.cold+0x87/0x98 [ 1.356370] __might_sleep+0x4b/0x80 [ 1.356372] mutex_lock+0x21/0x50 [ 1.356376] smu_get_uclk_dpm_states+0x3f/0x80 [amdgpu] [ 1.356538] pp_nv_get_uclk_dpm_states+0x35/0x50 [amdgpu] [ 1.356711] init_soc_bounding_box+0xf9/0x210 [amdgpu] [ 1.356892] ? create_object+0x20d/0x340 [ 1.356897] ? dcn20_resource_construct+0x46f/0xd30 [amdgpu] [ 1.357077] dcn20_resource_construct+0x4b1/0xd30 [amdgpu] ... Tested on: 5700XT (NAVI10 0x1002:0x731F 0x1DA2:0xE410 0xC1) Cc: Christian König <christian.koenig@amd.com> Cc: Hersen Wu <hersenxs.wu@amd.com> Cc: Anson Jacob <Anson.Jacob@amd.com> Cc: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Acked-by: Agustin Gutierrez <agustin.gutierrez@amd.com> Signed-off-by: Anson Jacob <Anson.Jacob@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/amdgpu/pm: properly handle sclk for profiling modes on vangoghAlex Deucher1-60/+29
[ Upstream commit 68e3871dcd6e547f6c47454492bc452356cb9eac ] When selecting between levels in the force performance levels interface sclk (gfxclk) was not set correctly for all levels. Select the proper sclk settings for all levels. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1726 Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/msm: prevent NULL dereference in msm_gpu_crashstate_capture()Tim Gardner1-1/+1
[ Upstream commit b220c154832c5cd0df34cbcbcc19d7135c16e823 ] Coverity complains of a possible NULL dereference: CID 120718 (#1 of 1): Dereference null return value (NULL_RETURNS) 23. dereference: Dereferencing a pointer that might be NULL state->bos when calling msm_gpu_crashstate_get_bo. [show details] 301 msm_gpu_crashstate_get_bo(state, submit->bos[i].obj, 302 submit->bos[i].iova, submit->bos[i].flags); Fix this by employing the same state->bos NULL check as is used in the next for loop. Cc: Rob Clark <robdclark@gmail.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: linux-arm-msm@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: freedreno@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Tim Gardner <tim.gardner@canonical.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20210929162554.14295-1-tim.gardner@canonical.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/amdkfd: fix resume error when iommu disabled in PicassoYifan Zhang1-0/+1
[ Upstream commit 6f4b590aae217da16cfa44039a2abcfb209137ab ] When IOMMU disabled in sbios and kfd in iommuv2 path, IOMMU resume failure blocks system resume. Don't allow kfd to use iommu v2 when iommu is disabled. Reported-by: youling <youling257@gmail.com> Tested-by: youling <youling257@gmail.com> Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com> Reviewed-by: James Zhu <James.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/amd/display: fix null pointer deref when plugging in displayAurabindo Pillai1-1/+2
[ Upstream commit 1f3b22e4eb162e0b1d423106a47484943a22a309 ] [Why&How] When system boots in headless mode, connecting a 4k display creates a null pointer dereference due to hubp for a certain plane being null. Add a condition to check for null hubp before dereferencing it. Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/amdkfd: rm BO resv on validation to avoid deadlockAlex Sierra1-6/+1
[ Upstream commit ec6abe831a843208e99a59adf108adba22166b3f ] This fix the deadlock with the BO reservations during SVM_BO evictions while allocations in VRAM are concurrently performed. More specific, while the ttm waits for the fence to be signaled (ttm_bo_wait), it already has the BO reserved. In parallel, the restore worker might be running, prefetching memory to VRAM. This also requires to reserve the BO, but blocks the mmap semaphore first. The deadlock happens when the SVM_BO eviction worker kicks in and waits for the mmap semaphore held in restore worker. Preventing signal the fence back, causing the deadlock until the ttm times out. We don't need to hold the BO reservation anymore during validation and mapping. Now the physical addresses are taken from hmm_range_fault. We also take migrate_mutex to prevent range migration while validate_and_map update GPU page table. Signed-off-by: Alex Sierra <alex.sierra@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Philip Yang <philip.yang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/amd/display: Fix null pointer dereference for encodersJimmy Kizito2-2/+2
[ Upstream commit 60f39edd897ea134a4ddb789a6795681691c3183 ] [Why] Links which are dynamically assigned link encoders have their link encoder set to NULL. [How] Check that a pointer to a link_encoder object is non-NULL before using it. Reviewed-by: Aric Cyr <aric.cyr@amd.com> Reviewed-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Jimmy Kizito <Jimmy.Kizito@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/amdgpu: Fix MMIO access page faultAndrey Grodzovsky2-8/+17
[ Upstream commit c03509cbc01559549700e14c4a6239f2572ab4ba ] Add more guards to MMIO access post device unbind/unplug Bug: https://bugs.archlinux.org/task/72092?project=1&order=dateopened&sort=desc&pagenum=1 Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Reviewed-by: James Zhu <James.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/amdgpu: move iommu_resume before ip init/resumeJames Zhu1-0/+4
[ Upstream commit 9cec53c18a3170c7e5673c414da56aeecee94832 ] Separate iommu_resume from kfd_resume, and move it before other amdgpu ip init/resume. Bug: https://bugzilla.kernel.org/show_bug.cgi?id=211277 Signed-off-by: James Zhu <James.Zhu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm/panel-orientation-quirks: add Valve Steam DeckSimon Ser1-0/+7
[ Upstream commit 9eeb7b4e40bfd69d8aaa920c7e9df751c9e11dce ] Valve's Steam Deck has a 800x1280 LCD screen. Signed-off-by: Simon Ser <contact@emersion.fr> Cc: Jared Baldridge <jrb@expunge.us> Cc: Emil Velikov <emil.l.velikov@gmail.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Hans de Goede <hdegoede@redhat.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210911102430.253986-1-contact@emersion.fr Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm: panel-orientation-quirks: Add quirk for the Samsung Galaxy Book 10.6Hans de Goede1-0/+12
[ Upstream commit 88fa1fde918951c175ae5ea0f31efc4bb1736ab9 ] The Samsung Galaxy Book 10.6 uses a panel which has been mounted 90 degrees rotated. Add a quirk for this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Ser <contact@emersion.fr> Link: https://patchwork.freedesktop.org/patch/msgid/20210530110428.12994-4-hdegoede@redhat.com Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm: panel-orientation-quirks: Add quirk for KD Kurio Smart C15200 2-in-1Hans de Goede1-0/+7
[ Upstream commit a53f1dd3ab9fec715c6c2e8e01bf4d3c07eef8e5 ] The KD Kurio Smart C15200 2-in-1 uses a panel which has been mounted 90 degrees rotated. Add a quirk for this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Ser <contact@emersion.fr> Link: https://patchwork.freedesktop.org/patch/msgid/20210530110428.12994-3-hdegoede@redhat.com Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18drm: panel-orientation-quirks: Update the Lenovo Ideapad D330 quirk (v2)Hans de Goede1-2/+7
[ Upstream commit 820a2ab23d5eab4ccfb82581eda8ad4acf18458f ] 2 improvements to the Lenovo Ideapad D330 panel-orientation quirks: 1. Some versions of the Lenovo Ideapad D330 have a DMI_PRODUCT_NAME of "81H3" and others have "81MD". Testing has shown that the "81MD" also has a 90 degree mounted panel. Drop the DMI_PRODUCT_NAME from the existing quirk so that the existing quirk matches both variants. 2. Some of the Lenovo Ideapad D330 models have a HD (800x1280) screen instead of a FHD (1200x1920) screen (both are mounted right-side-up) add a second Lenovo Ideapad D330 quirk for the HD version. Changes in v2: - Add a new quirk for Lenovo Ideapad D330 models with a HD screen instead of a FHD screen Link: https://github.com/systemd/systemd/pull/18884 Acked-by: Simon Ser <contact@emersion.fr> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210530110428.12994-2-hdegoede@redhat.com Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18ce/gf100: fix incorrect CE0 address calculation on some GPUsBen Skeggs2-3/+2
commit 93f43ed81abec8c805e1b77eb1d20dbc51a24dc4 upstream. The code which constructs the modules for each engine present on the GPU passes -1 for 'instance' on non-instanced engines, which affects how the name for a sub-device is generated. This is then stored as 'instance 0' in nvkm_subdev.inst, so code can potentially be shared with earlier GPUs that only had a single instance of an engine. However, GF100's CE constructor uses this value to calculate the address of its falcon before it's translated, resulting in CE0 getting the wrong address. This slightly modifies the approach, always passing a valid instance for engines that *can* have multiple copies, and having the code for earlier GPUs explicitly ask for non-instanced name generation. Bug: https://gitlab.freedesktop.org/drm/nouveau/-/issues/91 Fixes: 50551b15c760 ("drm/nouveau/ce: switch to instanced constructor") Cc: <stable@vger.kernel.org> # v5.12+ Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Karol Herbst <kherbst@redhat.com> Tested-by: Karol Herbst <kherbst@redhat.com> Signed-off-by: Karol Herbst <kherbst@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211103011057.15344-1-skeggsb@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-11-06Revert "drm/i915/gt: Propagate change in error status to children on unhold"Matthew Brost1-4/+0
commit ac653dd7996edf1770959e11a078312928bd7315 upstream. Propagating errors to dependent fences is broken and can lead to errors from one client ending up in another. In commit 3761baae908a ("Revert "drm/i915: Propagate errors on awaiting already signaled fences""), we attempted to get rid of fence error propagation but missed the case added in commit 8e9f84cf5cac ("drm/i915/gt: Propagate change in error status to children on unhold"). Revert that one too. This error was found by an up-and-coming selftest which triggers a reset during request cancellation and verifies that subsequent requests complete successfully. v2: (Daniel Vetter) - Use revert v3: (Jason) - Update commit message v4 (Daniele): - fix checkpatch error in commit message. References: '3761baae908a ("Revert "drm/i915: Propagate errors on awaiting already signaled fences"")' Signed-off-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210909164744.31249-8-matthew.brost@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-11-06drm/amd/display: Revert "Directly retrain link from debugfs"Anson Jacob1-1/+2
commit 1131cadfd7563975f3a4efcc6f7c1fdc872db38b upstream. This reverts commit f5b6a20c7ef40599095c796b0500d842ffdbc639. This patch broke new settings from taking effect. Hotplug is required for new settings to take effect. Reviewed-by: Mikita Lipski <mikita.lipski@amd.com> Acked-by: Mikita Lipski <mikita.lipski@amd.com> Signed-off-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-11-06drm/amdgpu: revert "Add autodump debugfs node for gpu reset v8"Christian König4-91/+0
commit c8365dbda056578eebe164bf110816b1a39b4b7f upstream. This reverts commit 728e7e0cd61899208e924472b9e641dbeb0775c4. Further discussion reveals that this feature is severely broken and needs to be reverted ASAP. GPU reset can never be delayed by userspace even for debugging or otherwise we can run into in kernel deadlocks. Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Nirmoy Das <nirmoy.das@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-11-06drm/amdkfd: fix boot failure when iommu is disabled in Picasso.Yifan Zhang2-4/+3
commit afd18180c07026f94a80ff024acef5f4159084a4 upstream. When IOMMU disabled in sbios and kfd in iommuv2 path, iommuv2 init will fail. But this failure should not block amdgpu driver init. Reported-by: youling <youling257@gmail.com> Tested-by: youling <youling257@gmail.com> Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com> Reviewed-by: James Zhu <James.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-28Merge tag 'drm-intel-fixes-2021-10-28' of ↵Dave Airlie5-43/+9
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes drm/i915 fixes for v5.15 final: - Remove unconditional clflushes - Fix oops on boot due to sync state on disabled DP encoders - Revert backend specific data added to tracepoints - Remove useless and incorrect memory frequence calculation Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/8735olh27y.fsf@intel.com
2021-10-28drm/i915: Revert 'guc_id' from i915_request tracepointJoonas Lahtinen1-5/+2
Avoid adding backend specific data to the tracepoints outside of the LOW_LEVEL_TRACEPOINTS kernel config protection. These bits of information are bound to change depending on the selected submission method per platform and are not necessarily possible to maintain in the future. Fixes: dbf9da8d55ef ("drm/i915/guc: Add trace point for GuC submit") Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: John Harrison <john.c.harrison@intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211027093255.66489-1-joonas.lahtinen@linux.intel.com (cherry picked from commit 64512a66b67e6546e2db15192b3603cd6d58b75c) Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2021-10-28Merge tag 'drm-misc-fixes-2021-10-28' of ↵Dave Airlie1-0/+6
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes One patch to fix the default screen orientation on the GPD Win3 Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20211028072300.b4gqexq6zfhby24g@gilmour
2021-10-28Merge tag 'drm-misc-fixes-2021-10-26' of ↵Dave Airlie3-0/+8
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes drm-misc-fixes for v5.15-rc8: - Fix fence leak in ttm_transfered_destroy. - Add quirk for Aya Neo 2021 - Reset property count for each drm damage selftest so full run will work correctly. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/4a133970-ff4b-aa62-d346-b269b1b9236e@linux.intel.com
2021-10-28drm/amd/display: Fix deadlock when falling back to v2 from v3Nicholas Kazlauskas1-4/+2
[Why] A deadlock in the kernel occurs when we fallback from the V3 to V2 add_topology_to_display or remove_topology_to_display because they both try to acquire the dtm_mutex but recursive locking isn't supported on mutex_lock(). [How] Make the mutex_lock/unlock more fine grained and move them up such that they're only required for the psp invocation itself. Fixes: bf62221e9d0e ("drm/amd/display: Add DCN3.1 HDCP support") Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: Aric Cyr <aric.cyr@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2021-10-28drm/amd/display: Fallback to clocks which meet requested voltage on DCN31Michael Strauss1-3/+10
[WHY] On certain configs, SMU clock table voltages don't match which cause parser to behave incorrectly by leaving dcfclk and socclk table entries unpopulated. [HOW] Currently the function that finds the corresponding clock for a given voltage only checks for exact voltage level matches. In the case that no match gets found, parser now falls back to searching for the max clock which meets the requested voltage (i.e. its corresponding voltage is below requested). Signed-off-by: Michael Strauss <michael.strauss@amd.com> Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2021-10-28drm/amdgpu: Fix even more out of bound writes from debugfsPatrik Jakobsson1-9/+9
CVE-2021-42327 was fixed by: commit f23750b5b3d98653b31d4469592935ef6364ad67 Author: Thelford Williams <tdwilliamsiv@gmail.com> Date: Wed Oct 13 16:04:13 2021 -0400 drm/amdgpu: fix out of bounds write but amdgpu_dm_debugfs.c contains more of the same issue so fix the remaining ones. v2: * Add missing fix in dp_max_bpc_write (Harry Wentland) Fixes: 918698d5c2b5 ("drm/amd/display: Return the number of bytes parsed than allocated") Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org