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path: root/drivers/gpu/drm/msm/msm_gem_submit.c
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Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem_submit.c')
-rw-r--r--drivers/gpu/drm/msm/msm_gem_submit.c61
1 files changed, 43 insertions, 18 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 5d0a75d4b249..b8dc8f96caf2 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -31,7 +31,8 @@
#define BO_PINNED 0x2000
static struct msm_gem_submit *submit_create(struct drm_device *dev,
- struct msm_gpu *gpu, uint32_t nr_bos, uint32_t nr_cmds)
+ struct msm_gpu *gpu, struct msm_gpu_submitqueue *queue,
+ uint32_t nr_bos, uint32_t nr_cmds)
{
struct msm_gem_submit *submit;
uint64_t sz = sizeof(*submit) + ((u64)nr_bos * sizeof(submit->bos[0])) +
@@ -49,6 +50,8 @@ static struct msm_gem_submit *submit_create(struct drm_device *dev,
submit->fence = NULL;
submit->pid = get_pid(task_pid(current));
submit->cmd = (void *)&submit->bos[nr_bos];
+ submit->queue = queue;
+ submit->ring = gpu->rb[queue->prio];
/* initially, until copy_from_user() and bo lookup succeeds: */
submit->nr_bos = 0;
@@ -66,6 +69,8 @@ void msm_gem_submit_free(struct msm_gem_submit *submit)
dma_fence_put(submit->fence);
list_del(&submit->node);
put_pid(submit->pid);
+ msm_submitqueue_put(submit->queue);
+
kfree(submit);
}
@@ -156,7 +161,8 @@ out:
return ret;
}
-static void submit_unlock_unpin_bo(struct msm_gem_submit *submit, int i)
+static void submit_unlock_unpin_bo(struct msm_gem_submit *submit,
+ int i, bool backoff)
{
struct msm_gem_object *msm_obj = submit->bos[i].obj;
@@ -166,7 +172,7 @@ static void submit_unlock_unpin_bo(struct msm_gem_submit *submit, int i)
if (submit->bos[i].flags & BO_LOCKED)
ww_mutex_unlock(&msm_obj->resv->lock);
- if (!(submit->bos[i].flags & BO_VALID))
+ if (backoff && !(submit->bos[i].flags & BO_VALID))
submit->bos[i].iova = 0;
submit->bos[i].flags &= ~(BO_LOCKED | BO_PINNED);
@@ -201,10 +207,10 @@ retry:
fail:
for (; i >= 0; i--)
- submit_unlock_unpin_bo(submit, i);
+ submit_unlock_unpin_bo(submit, i, true);
if (slow_locked > 0)
- submit_unlock_unpin_bo(submit, slow_locked);
+ submit_unlock_unpin_bo(submit, slow_locked, true);
if (ret == -EDEADLK) {
struct msm_gem_object *msm_obj = submit->bos[contended].obj;
@@ -221,7 +227,7 @@ fail:
return ret;
}
-static int submit_fence_sync(struct msm_gem_submit *submit)
+static int submit_fence_sync(struct msm_gem_submit *submit, bool no_implicit)
{
int i, ret = 0;
@@ -229,7 +235,22 @@ static int submit_fence_sync(struct msm_gem_submit *submit)
struct msm_gem_object *msm_obj = submit->bos[i].obj;
bool write = submit->bos[i].flags & MSM_SUBMIT_BO_WRITE;
- ret = msm_gem_sync_object(&msm_obj->base, submit->gpu->fctx, write);
+ if (!write) {
+ /* NOTE: _reserve_shared() must happen before
+ * _add_shared_fence(), which makes this a slightly
+ * strange place to call it. OTOH this is a
+ * convenient can-fail point to hook it in.
+ */
+ ret = reservation_object_reserve_shared(msm_obj->resv);
+ if (ret)
+ return ret;
+ }
+
+ if (no_implicit)
+ continue;
+
+ ret = msm_gem_sync_object(&msm_obj->base, submit->ring->fctx,
+ write);
if (ret)
break;
}
@@ -373,7 +394,7 @@ static void submit_cleanup(struct msm_gem_submit *submit)
for (i = 0; i < submit->nr_bos; i++) {
struct msm_gem_object *msm_obj = submit->bos[i].obj;
- submit_unlock_unpin_bo(submit, i);
+ submit_unlock_unpin_bo(submit, i, false);
list_del_init(&msm_obj->submit_entry);
drm_gem_object_unreference(&msm_obj->base);
}
@@ -391,6 +412,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
struct msm_gpu *gpu = priv->gpu;
struct dma_fence *in_fence = NULL;
struct sync_file *sync_file = NULL;
+ struct msm_gpu_submitqueue *queue;
+ struct msm_ringbuffer *ring;
int out_fence_fd = -1;
unsigned i;
int ret;
@@ -407,6 +430,12 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
if (MSM_PIPE_FLAGS(args->flags) & ~MSM_SUBMIT_FLAGS)
return -EINVAL;
+ queue = msm_submitqueue_get(ctx, args->queueid);
+ if (!queue)
+ return -ENOENT;
+
+ ring = gpu->rb[queue->prio];
+
if (args->flags & MSM_SUBMIT_FENCE_FD_IN) {
in_fence = sync_file_get_fence(args->fence_fd);
@@ -417,7 +446,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
* Wait if the fence is from a foreign context, or if the fence
* array contains any fence from a foreign context.
*/
- if (!dma_fence_match_context(in_fence, gpu->fctx->context)) {
+ if (!dma_fence_match_context(in_fence, ring->fctx->context)) {
ret = dma_fence_wait(in_fence, true);
if (ret)
return ret;
@@ -435,9 +464,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
goto out_unlock;
}
}
- priv->struct_mutex_task = current;
- submit = submit_create(dev, gpu, args->nr_bos, args->nr_cmds);
+ submit = submit_create(dev, gpu, queue, args->nr_bos, args->nr_cmds);
if (!submit) {
ret = -ENOMEM;
goto out_unlock;
@@ -451,11 +479,9 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
if (ret)
goto out;
- if (!(args->flags & MSM_SUBMIT_NO_IMPLICIT)) {
- ret = submit_fence_sync(submit);
- if (ret)
- goto out;
- }
+ ret = submit_fence_sync(submit, !!(args->flags & MSM_SUBMIT_NO_IMPLICIT));
+ if (ret)
+ goto out;
ret = submit_pin_objects(submit);
if (ret)
@@ -522,7 +548,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
submit->nr_cmds = i;
- submit->fence = msm_fence_alloc(gpu->fctx);
+ submit->fence = msm_fence_alloc(ring->fctx);
if (IS_ERR(submit->fence)) {
ret = PTR_ERR(submit->fence);
submit->fence = NULL;
@@ -555,7 +581,6 @@ out:
out_unlock:
if (ret && (out_fence_fd >= 0))
put_unused_fd(out_fence_fd);
- priv->struct_mutex_task = NULL;
mutex_unlock(&dev->struct_mutex);
return ret;
}