diff options
| author | Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> | 2025-06-04 15:28:23 +0300 |
|---|---|---|
| committer | Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> | 2025-09-01 08:19:31 +0300 |
| commit | 256576ed6895b81290690ae3e2b9f62eb7c642fc (patch) | |
| tree | f1b3f411174eb8156930a30d1d5ba0b1f3e28f7c /drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c | |
| parent | f3e82936857b3bd77b824ecd2fa7839dd99ec0c6 (diff) | |
| download | linux-256576ed6895b81290690ae3e2b9f62eb7c642fc.tar.xz | |
drm/amdgpu: give each kernel job a unique id
Userspace jobs have drm_file.client_id as a unique identifier
as job's owners. For kernel jobs, we can allocate arbitrary
values - the risk of overlap with userspace ids is small (given
that it's a u64 value).
In the unlikely case the overlap happens, it'll only impact
trace events.
Since this ID is traced in the gpu_scheduler trace events, this
allows to determine the source of each job sent to the hardware.
To make grepping easier, the IDs are defined as they will appear
in the trace output.
Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Link: https://lore.kernel.org/r/20250604122827.2191-1-pierre-eric.pelloux-prayer@amd.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c index 46d9fb433ab2..36805dcfa159 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c @@ -40,7 +40,7 @@ static int amdgpu_vm_sdma_map_table(struct amdgpu_bo_vm *table) /* Allocate a new job for @count PTE updates */ static int amdgpu_vm_sdma_alloc_job(struct amdgpu_vm_update_params *p, - unsigned int count) + unsigned int count, u64 k_job_id) { enum amdgpu_ib_pool_type pool = p->immediate ? AMDGPU_IB_POOL_IMMEDIATE : AMDGPU_IB_POOL_DELAYED; @@ -56,7 +56,7 @@ static int amdgpu_vm_sdma_alloc_job(struct amdgpu_vm_update_params *p, ndw = min(ndw, AMDGPU_VM_SDMA_MAX_NUM_DW); r = amdgpu_job_alloc_with_ib(p->adev, entity, AMDGPU_FENCE_OWNER_VM, - ndw * 4, pool, &p->job); + ndw * 4, pool, &p->job, k_job_id); if (r) return r; @@ -69,16 +69,17 @@ static int amdgpu_vm_sdma_alloc_job(struct amdgpu_vm_update_params *p, * * @p: see amdgpu_vm_update_params definition * @sync: amdgpu_sync object with fences to wait for + * @k_job_id: identifier of the job, for tracing purpose * * Returns: * Negativ errno, 0 for success. */ static int amdgpu_vm_sdma_prepare(struct amdgpu_vm_update_params *p, - struct amdgpu_sync *sync) + struct amdgpu_sync *sync, u64 k_job_id) { int r; - r = amdgpu_vm_sdma_alloc_job(p, 0); + r = amdgpu_vm_sdma_alloc_job(p, 0, k_job_id); if (r) return r; @@ -249,7 +250,8 @@ static int amdgpu_vm_sdma_update(struct amdgpu_vm_update_params *p, if (r) return r; - r = amdgpu_vm_sdma_alloc_job(p, count); + r = amdgpu_vm_sdma_alloc_job(p, count, + AMDGPU_KERNEL_JOB_ID_VM_UPDATE); if (r) return r; } |