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drm/amdgpu: add debugfs amdgpu_reset_level

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Introduce amdgpu_reset_level debugfs in order to help debug and
test specific type of reset. Also helps blocking unwanted type of
resets.

By default, mode2 reset will not be enabled

v2: make this debugfs in adev and use debugfs_create_u32

Signed-off-by: Victor Zhao <Victor.Zhao@amd.com>
Acked-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Victor Zhao 2022-06-14 10:48:11 +08:00 • committed by Alex Deucher
parent dac6b80818
commit 5bd8d53f6f
4 changed files with 18 additions and 0 deletions
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8
drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
View file

@ -37,6 +37,8 @@ int amdgpu_reset_init(struct amdgpu_device *adev)
{
int ret = 0;
adev->amdgpu_reset_level_mask = 0x1;
switch (adev->ip_versions[MP1_HWIP][0]) {
case IP_VERSION(13, 0, 2):
ret = aldebaran_reset_init(adev);
@ -74,6 +76,9 @@ int amdgpu_reset_prepare_hwcontext(struct amdgpu_device *adev,
{
struct amdgpu_reset_handler *reset_handler = NULL;
if (!(adev->amdgpu_reset_level_mask & AMDGPU_RESET_LEVEL_MODE2))
return -ENOSYS;
if (test_bit(AMDGPU_SKIP_MODE2_RESET, &reset_context->flags))
return -ENOSYS;
@ -93,6 +98,9 @@ int amdgpu_reset_perform_reset(struct amdgpu_device *adev,
int ret;
struct amdgpu_reset_handler *reset_handler = NULL;
if (!(adev->amdgpu_reset_level_mask & AMDGPU_RESET_LEVEL_MODE2))
return -ENOSYS;
if (test_bit(AMDGPU_SKIP_MODE2_RESET, &reset_context->flags))
return -ENOSYS;