drm/amdgpu: change job->ctx field name

job->ctx actually is a fence_context of the entity
it belongs to, naming it as ctx is too vague, and
we'll need add amdgpu_ctx into the job structure
later.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -1241,7 +1241,7 @@ struct amdgpu_job {
 	struct fence		*fence; /* the hw fence */
 	uint32_t		num_ibs;
 	void			*owner;
-	uint64_t		ctx;
+	uint64_t		fence_ctx; /* the fence_context this job uses */
 	bool                    vm_needs_flush;
 	unsigned		vm_id;
 	uint64_t		vm_pd_addr;

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

@@ -989,7 +989,7 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
 	}
 
 	job->owner = p->filp;
-	job->ctx = entity->fence_context;
+	job->fence_ctx = entity->fence_context;
 	p->fence = fence_get(&job->base.s_fence->finished);
 	cs->out.handle = amdgpu_ctx_add_fence(p->ctx, ring, p->fence);
 	job->uf_sequence = cs->out.handle;

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

@@ -124,7 +124,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
 	bool skip_preamble, need_ctx_switch;
 	unsigned patch_offset = ~0;
 	struct amdgpu_vm *vm;
-	uint64_t ctx;
+	uint64_t fence_ctx;
 
 	unsigned i;
 	int r = 0;
@@ -135,10 +135,10 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
 	/* ring tests don't use a job */
 	if (job) {
 		vm = job->vm;
-		ctx = job->ctx;
+		fence_ctx = job->fence_ctx;
 	} else {
 		vm = NULL;
-		ctx = 0;
+		fence_ctx = 0;
 	}
 
 	if (!ring->ready) {
@@ -174,8 +174,8 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
 	/* always set cond_exec_polling to CONTINUE */
 	*ring->cond_exe_cpu_addr = 1;
 
-	skip_preamble = ring->current_ctx == ctx;
-	need_ctx_switch = ring->current_ctx != ctx;
+	skip_preamble = ring->current_ctx == fence_ctx;
+	need_ctx_switch = ring->current_ctx != fence_ctx;
 	for (i = 0; i < num_ibs; ++i) {
 		ib = &ibs[i];
 
@@ -209,7 +209,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
 	if (patch_offset != ~0 && ring->funcs->patch_cond_exec)
 		amdgpu_ring_patch_cond_exec(ring, patch_offset);
 
-	ring->current_ctx = ctx;
+	ring->current_ctx = fence_ctx;
 	if (ring->funcs->emit_switch_buffer)
 		amdgpu_ring_emit_switch_buffer(ring);
 	amdgpu_ring_commit(ring);

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

@@ -124,7 +124,7 @@ int amdgpu_job_submit(struct amdgpu_job *job, struct amdgpu_ring *ring,
 		return r;
 
 	job->owner = owner;
-	job->ctx = entity->fence_context;
+	job->fence_ctx = entity->fence_context;
 	*f = fence_get(&job->base.s_fence->finished);
 	amdgpu_job_free_resources(job);
 	amd_sched_entity_push_job(&job->base);