mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-27 12:57:53 +00:00
Code Issues Releases Wiki Activity

drm/amdgpu: add reset register dump trace on GPU

Browse source 
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>
This commit is contained in:
Somalapuram Amaranath 2022-02-23 14:27:43 +05:30 committed by Alex Deucher
parent 5ce5a584cb
commit 15fd09a05a
2 changed files with 33 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View file

@ -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)

16
drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
View file

@ -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