drm/amdgpu: add mes_dbgext core support

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Add the core MES debug-extension logging layer in amdgpu_mes: allocate
and initialize the firmware log buffer, and print messages to dmesg
via interrupt or polling collection modes, with start/stop/notify
and an amdgpu_mes_dbgext debugfs control.

Expose the mes_dbgext_buffer_size and mes_dbgext_options module
parameters to configure the buffer size and collection mode, and wire
the debugfs init (amdgpu_debugfs_mes_init).

Signed-off-by: Yongqiang Sun <Yongqiang.Sun@amd.com>
Reviewed-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Yongqiang Sun 2026-09-18 14:08:12 -04:00 • committed by Alex Deucher

parent ef8cb9dcc7

commit a367f2657f

6 changed files with 833 additions and 8 deletions

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2

drivers/gpu/drm/amd/amdgpu/amdgpu.h

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2

drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c

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2

drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.h

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31

drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c

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745

drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c

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59

drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h

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