1 files changed, 145 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c
new file mode 100644
index 000000000000..a86e38158afa
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ */
+#include <linux/kthread.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <drm/drmP.h>
+#include "amdgpu.h"
+
+static int amdgpu_sched_prepare_job(struct amd_gpu_scheduler *sched,
+				    struct amd_sched_entity *entity,
+				    struct amd_sched_job *job)
+{
+	int r = 0;
+	struct amdgpu_cs_parser *sched_job;
+	if (!job || !job->data) {
+		DRM_ERROR("job is null\n");
+		return -EINVAL;
+	}
+
+	sched_job = (struct amdgpu_cs_parser *)job->data;
+	if (sched_job->prepare_job) {
+		r = sched_job->prepare_job(sched_job);
+		if (r) {
+			DRM_ERROR("Prepare job error\n");
+			schedule_work(&sched_job->job_work);
+		}
+	}
+	return r;
+}
+
+static struct fence *amdgpu_sched_run_job(struct amd_gpu_scheduler *sched,
+					  struct amd_sched_entity *entity,
+					  struct amd_sched_job *job)
+{
+	int r = 0;
+	struct amdgpu_cs_parser *sched_job;
+	struct amdgpu_fence *fence;
+
+	if (!job || !job->data) {
+		DRM_ERROR("job is null\n");
+		return NULL;
+	}
+	sched_job = (struct amdgpu_cs_parser *)job->data;
+	mutex_lock(&sched_job->job_lock);
+	r = amdgpu_ib_schedule(sched_job->adev,
+			       sched_job->num_ibs,
+			       sched_job->ibs,
+			       sched_job->filp);
+	if (r)
+		goto err;
+	fence = amdgpu_fence_ref(sched_job->ibs[sched_job->num_ibs - 1].fence);
+
+	if (sched_job->run_job) {
+		r = sched_job->run_job(sched_job);
+		if (r)
+			goto err;
+	}
+
+	mutex_unlock(&sched_job->job_lock);
+	return &fence->base;
+
+err:
+	DRM_ERROR("Run job error\n");
+	mutex_unlock(&sched_job->job_lock);
+	schedule_work(&sched_job->job_work);
+	return NULL;
+}
+
+static void amdgpu_sched_process_job(struct amd_gpu_scheduler *sched,
+				     struct amd_sched_job *job)
+{
+	struct amdgpu_cs_parser *sched_job;
+
+	if (!job || !job->data) {
+		DRM_ERROR("job is null\n");
+		return;
+	}
+	sched_job = (struct amdgpu_cs_parser *)job->data;
+	schedule_work(&sched_job->job_work);
+}
+
+struct amd_sched_backend_ops amdgpu_sched_ops = {
+	.prepare_job = amdgpu_sched_prepare_job,
+	.run_job = amdgpu_sched_run_job,
+	.process_job = amdgpu_sched_process_job
+};
+
+int amdgpu_sched_ib_submit_kernel_helper(struct amdgpu_device *adev,
+					 struct amdgpu_ring *ring,
+					 struct amdgpu_ib *ibs,
+					 unsigned num_ibs,
+					 int (*free_job)(struct amdgpu_cs_parser *),
+					 void *owner,
+					 struct fence **f)
+{
+	int r = 0;
+	if (amdgpu_enable_scheduler) {
+		struct amdgpu_cs_parser *sched_job =
+			amdgpu_cs_parser_create(adev, owner, &adev->kernel_ctx,
+						ibs, num_ibs);
+		if(!sched_job) {
+			return -ENOMEM;
+		}
+		sched_job->free_job = free_job;
+		mutex_lock(&sched_job->job_lock);
+		r = amd_sched_push_job(ring->scheduler,
+				       &adev->kernel_ctx.rings[ring->idx].entity,
+				       sched_job, &sched_job->s_fence);
+		if (r) {
+			mutex_unlock(&sched_job->job_lock);
+			kfree(sched_job);
+			return r;
+		}
+		ibs[num_ibs - 1].sequence = sched_job->s_fence->v_seq;
+		*f = fence_get(&sched_job->s_fence->base);
+		mutex_unlock(&sched_job->job_lock);
+	} else {
+		r = amdgpu_ib_schedule(adev, num_ibs, ibs, owner);
+		if (r)
+			return r;
+		*f = fence_get(&ibs[num_ibs - 1].fence->base);
+	}
+	return 0;
+}