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| author | Somalapuram Amaranath <Amaranath.Somalapuram@amd.com> | 2022-02-23 14:27:43 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-02-23 14:26:36 -0500 |
| commit | 15fd09a05a66216a9ad772728e51290f6dea1eb0 (patch) | |
| tree | 016148c2e83a53a9604cf52dc7c26c7043b169b5 | |
| parent | 5ce5a584cb826f1c1f0625a336134feb4e1142cd (diff) | |
| download | linux-15fd09a05a66216a9ad772728e51290f6dea1eb0.tar.bz2 | |
drm/amdgpu: add reset register dump trace on GPU
Dump the list of register values to trace event on GPU reset.
Signed-off-by: Somalapuram Amaranath <Amaranath.Somalapuram@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 17 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h | 16 |
2 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 17ed7fd2a5c2..ecf8c307baf6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -4638,6 +4638,22 @@ int amdgpu_device_pre_asic_reset(struct amdgpu_device *adev, return r; } +static int amdgpu_reset_reg_dumps(struct amdgpu_device *adev) +{ + uint32_t reg_value; + int i; + + lockdep_assert_held(&adev->reset_sem); + dump_stack(); + + for (i = 0; i < adev->num_regs; i++) { + reg_value = RREG32(adev->reset_dump_reg_list[i]); + trace_amdgpu_reset_reg_dumps(adev->reset_dump_reg_list[i], reg_value); + } + + return 0; +} + int amdgpu_do_asic_reset(struct list_head *device_list_handle, struct amdgpu_reset_context *reset_context) { @@ -4648,6 +4664,7 @@ int amdgpu_do_asic_reset(struct list_head *device_list_handle, /* Try reset handler method first */ tmp_adev = list_first_entry(device_list_handle, struct amdgpu_device, reset_list); + amdgpu_reset_reg_dumps(tmp_adev); r = amdgpu_reset_perform_reset(tmp_adev, reset_context); /* If reset handler not implemented, continue; otherwise return */ if (r == -ENOSYS) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h index a48b34d4ce31..06dfcf297a8d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h @@ -536,6 +536,22 @@ TRACE_EVENT(amdgpu_ib_pipe_sync, __entry->seqno) ); +TRACE_EVENT(amdgpu_reset_reg_dumps, + TP_PROTO(uint32_t address, uint32_t value), + TP_ARGS(address, value), + TP_STRUCT__entry( + __field(uint32_t, address) + __field(uint32_t, value) + ), + TP_fast_assign( + __entry->address = address; + __entry->value = value; + ), + TP_printk("amdgpu register dump 0x%x: 0x%x", + __entry->address, + __entry->value) +); + #undef AMDGPU_JOB_GET_TIMELINE_NAME #endif |