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drm/amdgpu: add new INFO ioctl query for the last GPU page fault

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Add a interface to query the last GPU page fault for the process.
Useful for debugging context lost errors.

v2: split vmhub representation between kernel and userspace
v3: add locking when fetching fault info in INFO IOCTL

Mesa MR: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23238
libdrm MR: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23238

Cc: samuel.pitoiset@gmail.com
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2020-10-06 16:54:35 -04:00
parent 9cff0879ae
commit 7a41ed8b59
5 changed files with 63 additions and 5 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
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@@ -113,9 +113,10 @@
* gl1c_cache_size, gl2c_cache_size, mall_size, enabled_rb_pipes_mask_hi
* 3.53.0 - Support for GFX11 CP GFX shadowing
* 3.54.0 - Add AMDGPU_CTX_QUERY2_FLAGS_RESET_IN_PROGRESS support
* - 3.55.0 - Add AMDGPU_INFO_GPUVM_FAULT query
*/
#define KMS_DRIVER_MAJOR 3
#define KMS_DRIVER_MINOR 54
#define KMS_DRIVER_MINOR 55
#define KMS_DRIVER_PATCHLEVEL 0
/*