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drm/amdgpu: Enforce isolation as part of the job

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This patch adds a new parameter 'enforce_isolation' to the amdgpu_job
structure. This parameter is used to determine whether shader isolation
should be enforced for a job. The enforce_isolation parameter is then
stored in the amdgpu_job structure and used when flushing the VM.

The enforce_isolation field of the amdgpu_job structure is set directly
after the job is allocated

This change allows more fine-grained control over shader isolation,
making it possible to enforce isolation on a per-job basis rather than
globally. This can be useful in scenarios where only certain jobs
require isolation.

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Srinivasan Shanmugam 2024-03-20 06:42:38 +05:30 committed by Alex Deucher
parent 19cff16559
commit dba1a6cfc3
3 changed files with 6 additions and 1 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
View file

@ -296,6 +296,7 @@ static int amdgpu_cs_pass1(struct amdgpu_cs_parser *p,
num_ibs[i], &p->jobs[i]);
if (ret)
goto free_all_kdata;
p->jobs[i]->enforce_isolation = p->adev->enforce_isolation[fpriv->xcp_id];
}
p->gang_leader = p->jobs[p->gang_leader_idx];

3
drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
View file

@ -76,6 +76,9 @@ struct amdgpu_job {
/* job_run_counter >= 1 means a resubmit job */
uint32_t job_run_counter;
/* enforce isolation */
bool enforce_isolation;
uint32_t num_ibs;
struct amdgpu_ib ibs[];
};

3
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
View file

@ -682,7 +682,8 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring, struct amdgpu_job *job,
ring->funcs->emit_wreg;
if (adev->gfx.enable_cleaner_shader &&
ring->funcs->emit_cleaner_shader)
ring->funcs->emit_cleaner_shader &&
job->enforce_isolation)
ring->funcs->emit_cleaner_shader(ring);
if (!vm_flush_needed && !gds_switch_needed && !need_pipe_sync)