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;
+}