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| author | Victor Zhao <Victor.Zhao@amd.com> | 2022-06-14 10:48:11 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-08-16 18:14:31 -0400 |
| commit | 5bd8d53f6fa53eab5433698d1362dae2aa53c1cc (patch) | |
| tree | 16feb5b14db69b87652cc99b319cc06f5cf33782 /drivers/gpu | |
| parent | dac6b80818ac2353631c5a33d140d8d5508e2957 (diff) | |
| download | linux-5bd8d53f6fa53eab5433698d1362dae2aa53c1cc.tar.bz2 | |
drm/amdgpu: add debugfs amdgpu_reset_level
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>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 3 |
4 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index d597e2656c47..66a26f2c51c1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -274,6 +274,9 @@ extern int amdgpu_vcnfw_log; #define AMDGPU_RESET_VCE (1 << 13) #define AMDGPU_RESET_VCE1 (1 << 14) +#define AMDGPU_RESET_LEVEL_SOFT_RECOVERY (1 << 0) +#define AMDGPU_RESET_LEVEL_MODE2 (1 << 1) + /* max cursor sizes (in pixels) */ #define CIK_CURSOR_WIDTH 128 #define CIK_CURSOR_HEIGHT 128 @@ -1060,6 +1063,8 @@ struct amdgpu_device { uint32_t scpm_status; struct work_struct reset_work; + + uint32_t amdgpu_reset_level_mask; }; static inline struct amdgpu_device *drm_to_adev(struct drm_device *ddev) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c index cb00c7d6f50b..4e54569fa223 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c @@ -1786,6 +1786,8 @@ int amdgpu_debugfs_init(struct amdgpu_device *adev) return PTR_ERR(ent); } + debugfs_create_u32("amdgpu_reset_level", 0600, root, &adev->amdgpu_reset_level_mask); + /* Register debugfs entries for amdgpu_ttm */ amdgpu_ttm_debugfs_init(adev); amdgpu_debugfs_pm_init(adev); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c index 831fb222139c..9da5ead50c90 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c @@ -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; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c index d3558c34d406..3e316b013fd9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c @@ -405,6 +405,9 @@ bool amdgpu_ring_soft_recovery(struct amdgpu_ring *ring, unsigned int vmid, { ktime_t deadline = ktime_add_us(ktime_get(), 10000); + if (!(ring->adev->amdgpu_reset_level_mask & AMDGPU_RESET_LEVEL_SOFT_RECOVERY)) + return false; + if (amdgpu_sriov_vf(ring->adev) || !ring->funcs->soft_recovery || !fence) return false; |