Commit dba1a6cf authored by Srinivasan Shanmugam's avatar Srinivasan Shanmugam Committed by Alex Deucher
Browse files

drm/amdgpu: Enforce isolation as part of the job 



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: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarSrinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Suggested-by: default avatarChristian König <christian.koenig@amd.com>
parent 19cff165

drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

+1 −0
Original line number Diff line number Diff line
@@ -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];

drivers/gpu/drm/amd/amdgpu/amdgpu_job.h

+3 −0
Original line number Diff line number Diff line
@@ -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[];

};

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

+2 −1
Original line number Diff line number Diff line
@@ -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)