diff options
| author | Jesse.zhang@amd.com <Jesse.zhang@amd.com> | 2025-02-25 15:25:00 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-03-21 12:16:35 -0400 |
| commit | b09cdeb4d38872b84c6d59878915eae2adbe9d2b (patch) | |
| tree | 15331c2c49c15dfe0c6cdacdde159f516a11d90f /drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h | |
| parent | ea6dd40cafdbf5f735b3d84dd61df93d107aff38 (diff) | |
drm/amdgpu: Optimize VM invalidation engine allocation and synchronize GPU TLB flush
- Modify the VM invalidation engine allocation logic to handle SDMA page rings.
SDMA page rings now share the VM invalidation engine with SDMA gfx rings instead of
allocating a separate engine. This change ensures efficient resource management and
avoids the issue of insufficient VM invalidation engines.
- Add synchronization for GPU TLB flush operations in gmc_v9_0.c.
Use spin_lock and spin_unlock to ensure thread safety and prevent race conditions
during TLB flush operations. This improves the stability and reliability of the driver,
especially in multi-threaded environments.
v2: replace the sdma ring check with a function `amdgpu_sdma_is_page_queue`
to check if a ring is an SDMA page queue.(Lijo)
v3: Add GC version check, only enabled on GC9.4.3/9.4.4/9.5.0
v4: Fix code style and add more detailed description (Christian)
v5: Remove dependency on vm_inv_eng loop order, explicitly lookup shared inv_eng(Christian/Lijo)
v6: Added search shared ring function amdgpu_sdma_get_shared_ring (Lijo)
Suggested-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Jesse Zhang <jesse.zhang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h index dc1a81c2f9af..47d56fd0589f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h @@ -196,4 +196,7 @@ int amdgpu_sdma_ras_sw_init(struct amdgpu_device *adev); void amdgpu_debugfs_sdma_sched_mask_init(struct amdgpu_device *adev); int amdgpu_sdma_sysfs_reset_mask_init(struct amdgpu_device *adev); void amdgpu_sdma_sysfs_reset_mask_fini(struct amdgpu_device *adev); +bool amdgpu_sdma_is_shared_inv_eng(struct amdgpu_device *adev, struct amdgpu_ring *ring); +struct amdgpu_ring *amdgpu_sdma_get_shared_ring(struct amdgpu_device *adev, + struct amdgpu_ring *ring); #endif |