drm/amdgpu: nuke the kernel context

Not used any more.
Signed-off-by: NChristian König <christian.koenig@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

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

@@ -1017,10 +1017,6 @@ struct amdgpu_ctx_mgr {
 	struct idr		ctx_handles;
 };
 
-int amdgpu_ctx_init(struct amdgpu_device *adev, enum amd_sched_priority pri,
-		    struct amdgpu_ctx *ctx);
-void amdgpu_ctx_fini(struct amdgpu_ctx *ctx);
-
 struct amdgpu_ctx *amdgpu_ctx_get(struct amdgpu_fpriv *fpriv, uint32_t id);
 int amdgpu_ctx_put(struct amdgpu_ctx *ctx);
 
@@ -2086,9 +2082,6 @@ struct amdgpu_device {
 	/* amdkfd interface */
 	struct kfd_dev          *kfd;
 
-	/* kernel conext for IB submission */
-	struct amdgpu_ctx	kernel_ctx;
-
 	struct amdgpu_virtualization virtualization;
 };
 

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

@@ -25,8 +25,7 @@
 #include <drm/drmP.h>
 #include "amdgpu.h"
 
-int amdgpu_ctx_init(struct amdgpu_device *adev, enum amd_sched_priority pri,
-		    struct amdgpu_ctx *ctx)
+static int amdgpu_ctx_init(struct amdgpu_device *adev, struct amdgpu_ctx *ctx)
 {
 	unsigned i, j;
 	int r;
@@ -47,14 +46,11 @@ int amdgpu_ctx_init(struct amdgpu_device *adev, enum amd_sched_priority pri,
 	}
 	/* create context entity for each ring */
 	for (i = 0; i < adev->num_rings; i++) {
+		struct amdgpu_ring *ring = adev->rings[i];
 		struct amd_sched_rq *rq;
-		if (pri >= AMD_SCHED_MAX_PRIORITY) {
-			kfree(ctx->fences);
-			return -EINVAL;
-		}
-		rq = &adev->rings[i]->sched.sched_rq[pri];
-		r = amd_sched_entity_init(&adev->rings[i]->sched,
-					  &ctx->rings[i].entity,
+
+		rq = &ring->sched.sched_rq[AMD_SCHED_PRIORITY_NORMAL];
+		r = amd_sched_entity_init(&ring->sched, &ctx->rings[i].entity,
 					  rq, amdgpu_sched_jobs);
 		if (r)
 			break;
@@ -70,7 +66,7 @@ int amdgpu_ctx_init(struct amdgpu_device *adev, enum amd_sched_priority pri,
 	return 0;
 }
 
-void amdgpu_ctx_fini(struct amdgpu_ctx *ctx)
+static void amdgpu_ctx_fini(struct amdgpu_ctx *ctx)
 {
 	struct amdgpu_device *adev = ctx->adev;
 	unsigned i, j;
@@ -108,7 +104,7 @@ static int amdgpu_ctx_alloc(struct amdgpu_device *adev,
 		return r;
 	}
 	*id = (uint32_t)r;
-	r = amdgpu_ctx_init(adev, AMD_SCHED_PRIORITY_NORMAL, ctx);
+	r = amdgpu_ctx_init(adev, ctx);
 	if (r) {
 		idr_remove(&mgr->ctx_handles, *id);
 		*id = 0;

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

@@ -1551,11 +1551,6 @@ int amdgpu_device_init(struct amdgpu_device *adev,
 		return r;
 	}
 
-	r = amdgpu_ctx_init(adev, AMD_SCHED_PRIORITY_KERNEL, &adev->kernel_ctx);
-	if (r) {
-		dev_err(adev->dev, "failed to create kernel context (%d).\n", r);
-		return r;
-	}
 	r = amdgpu_ib_ring_tests(adev);
 	if (r)
 		DRM_ERROR("ib ring test failed (%d).\n", r);
@@ -1619,7 +1614,6 @@ void amdgpu_device_fini(struct amdgpu_device *adev)
 	adev->shutdown = true;
 	/* evict vram memory */
 	amdgpu_bo_evict_vram(adev);
-	amdgpu_ctx_fini(&adev->kernel_ctx);
 	amdgpu_ib_pool_fini(adev);
 	amdgpu_fence_driver_fini(adev);
 	amdgpu_fbdev_fini(adev);

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

@@ -83,11 +83,6 @@ int amdgpu_job_submit(struct amdgpu_job *job, struct amdgpu_ring *ring,
 		      struct amd_sched_entity *entity, void *owner,
 		      struct fence **f)
 {
-	struct amdgpu_device *adev = job->adev;
-
-	if (!entity)
-		entity = &adev->kernel_ctx.rings[ring->idx].entity;
-
 	job->ring = ring;
 	job->base.sched = &ring->sched;
 	job->base.s_entity = entity;