1 files changed, 75 insertions, 5 deletions

diff --git a/drivers/gpu/drm/msm/msm_ringbuffer.c b/drivers/gpu/drm/msm/msm_ringbuffer.c
index 4d2a2a4abef8..b2f612e5dc79 100644
--- a/drivers/gpu/drm/msm/msm_ringbuffer.c
+++ b/drivers/gpu/drm/msm/msm_ringbuffer.c
@@ -7,14 +7,76 @@
 #include "msm_ringbuffer.h"
 #include "msm_gpu.h"
 
+static uint num_hw_submissions = 8;
+MODULE_PARM_DESC(num_hw_submissions, "The max # of jobs to write into ringbuffer (default 8)");
+module_param(num_hw_submissions, uint, 0600);
+
+static struct dma_fence *msm_job_run(struct drm_sched_job *job)
+{
+	struct msm_gem_submit *submit = to_msm_submit(job);
+	struct msm_fence_context *fctx = submit->ring->fctx;
+	struct msm_gpu *gpu = submit->gpu;
+	struct msm_drm_private *priv = gpu->dev->dev_private;
+	unsigned nr_cmds = submit->nr_cmds;
+	int i;
+
+	msm_fence_init(submit->hw_fence, fctx);
+
+	mutex_lock(&priv->lru.lock);
+
+	for (i = 0; i < submit->nr_bos; i++) {
+		struct drm_gem_object *obj = submit->bos[i].obj;
+
+		msm_gem_unpin_active(obj);
+	}
+
+	submit->bos_pinned = false;
+
+	mutex_unlock(&priv->lru.lock);
+
+	/* TODO move submit path over to using a per-ring lock.. */
+	mutex_lock(&gpu->lock);
+
+	if (submit->queue->ctx->closed)
+		submit->nr_cmds = 0;
+
+	msm_gpu_submit(gpu, submit);
+
+	submit->nr_cmds = nr_cmds;
+
+	mutex_unlock(&gpu->lock);
+
+	return dma_fence_get(submit->hw_fence);
+}
+
+static void msm_job_free(struct drm_sched_job *job)
+{
+	struct msm_gem_submit *submit = to_msm_submit(job);
+
+	drm_sched_job_cleanup(job);
+	msm_gem_submit_put(submit);
+}
+
+static const struct drm_sched_backend_ops msm_sched_ops = {
+	.run_job = msm_job_run,
+	.free_job = msm_job_free
+};
+
 struct msm_ringbuffer *msm_ringbuffer_new(struct msm_gpu *gpu, int id,
 		void *memptrs, uint64_t memptrs_iova)
 {
+	struct drm_sched_init_args args = {
+		.ops = &msm_sched_ops,
+		.num_rqs = DRM_SCHED_PRIORITY_COUNT,
+		.credit_limit = num_hw_submissions,
+		.timeout = MAX_SCHEDULE_TIMEOUT,
+		.dev = gpu->dev->dev,
+	};
 	struct msm_ringbuffer *ring;
 	char name[32];
 	int ret;
 
-	/* We assume everwhere that MSM_GPU_RINGBUFFER_SZ is a power of 2 */
+	/* We assume everywhere that MSM_GPU_RINGBUFFER_SZ is a power of 2 */
 	BUILD_BUG_ON(!is_power_of_2(MSM_GPU_RINGBUFFER_SZ));
 
 	ring = kzalloc(sizeof(*ring), GFP_KERNEL);
@@ -28,15 +90,16 @@ struct msm_ringbuffer *msm_ringbuffer_new(struct msm_gpu *gpu, int id,
 
 	ring->start = msm_gem_kernel_new(gpu->dev, MSM_GPU_RINGBUFFER_SZ,
 		check_apriv(gpu, MSM_BO_WC | MSM_BO_GPU_READONLY),
-		gpu->aspace, &ring->bo, &ring->iova);
+		gpu->vm, &ring->bo, &ring->iova);
 
 	if (IS_ERR(ring->start)) {
 		ret = PTR_ERR(ring->start);
-		ring->start = 0;
+		ring->start = NULL;
 		goto fail;
 	}
 
 	msm_gem_object_set_name(ring->bo, "ring%d", id);
+	args.name = to_msm_bo(ring->bo)->name;
 
 	ring->end   = ring->start + (MSM_GPU_RINGBUFFER_SZ >> 2);
 	ring->next  = ring->start;
@@ -45,13 +108,18 @@ struct msm_ringbuffer *msm_ringbuffer_new(struct msm_gpu *gpu, int id,
 	ring->memptrs = memptrs;
 	ring->memptrs_iova = memptrs_iova;
 
+	ret = drm_sched_init(&ring->sched, &args);
+	if (ret) {
+		goto fail;
+	}
+
 	INIT_LIST_HEAD(&ring->submits);
 	spin_lock_init(&ring->submit_lock);
 	spin_lock_init(&ring->preempt_lock);
 
 	snprintf(name, sizeof(name), "gpu-ring-%d", ring->id);
 
-	ring->fctx = msm_fence_context_alloc(gpu->dev, name);
+	ring->fctx = msm_fence_context_alloc(gpu->dev, &ring->memptrs->fence, name);
 
 	return ring;
 
@@ -65,9 +133,11 @@ void msm_ringbuffer_destroy(struct msm_ringbuffer *ring)
 	if (IS_ERR_OR_NULL(ring))
 		return;
 
+	drm_sched_fini(&ring->sched);
+
 	msm_fence_context_free(ring->fctx);
 
-	msm_gem_kernel_put(ring->bo, ring->gpu->aspace, false);
+	msm_gem_kernel_put(ring->bo, ring->gpu->vm);
 
 	kfree(ring);
 }