diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index a5142d60c2faadb4a0f788ef2c8386419922a2c9..cca9ab505deb2fc5333d0dc2b8afc4f641bcb7d9 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -56,6 +56,7 @@ #define STATE_ERR 2 #define MAX_CAPSET_ID 63 +#define MAX_RINGS 64 struct virtio_gpu_object_params { unsigned long size; @@ -263,6 +264,8 @@ struct virtio_gpu_fpriv { uint32_t ctx_id; uint32_t context_init; bool context_created; + uint32_t num_rings; + uint64_t base_fence_ctx; struct mutex context_lock; }; diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c index f51f3393a1946df09f60c4fb9bd5b59ad99e9167..262f792102836e32b4b12e02698cb08b26b1d103 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c @@ -99,6 +99,11 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data, int in_fence_fd = exbuf->fence_fd; int out_fence_fd = -1; void *buf; + uint64_t fence_ctx; + uint32_t ring_idx; + + fence_ctx = vgdev->fence_drv.context; + ring_idx = 0; if (vgdev->has_virgl_3d == false) return -ENOSYS; @@ -106,6 +111,17 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data, if ((exbuf->flags & ~VIRTGPU_EXECBUF_FLAGS)) return -EINVAL; + if ((exbuf->flags & VIRTGPU_EXECBUF_RING_IDX)) { + if (exbuf->ring_idx >= vfpriv->num_rings) + return -EINVAL; + + if (!vfpriv->base_fence_ctx) + return -EINVAL; + + fence_ctx = vfpriv->base_fence_ctx; + ring_idx = exbuf->ring_idx; + } + exbuf->fence_fd = -1; virtio_gpu_create_context(dev, file); @@ -173,7 +189,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data, goto out_memdup; } - out_fence = virtio_gpu_fence_alloc(vgdev, vgdev->fence_drv.context, 0); + out_fence = virtio_gpu_fence_alloc(vgdev, fence_ctx, ring_idx); if(!out_fence) { ret = -ENOMEM; goto out_unresv; @@ -691,7 +707,7 @@ static int virtio_gpu_context_init_ioctl(struct drm_device *dev, return -EINVAL; /* Number of unique parameters supported at this time. */ - if (num_params > 1) + if (num_params > 2) return -EINVAL; ctx_set_params = memdup_user(u64_to_user_ptr(args->ctx_set_params), @@ -731,6 +747,20 @@ static int virtio_gpu_context_init_ioctl(struct drm_device *dev, vfpriv->context_init |= value; break; + case VIRTGPU_CONTEXT_PARAM_NUM_RINGS: + if (vfpriv->base_fence_ctx) { + ret = -EINVAL; + goto out_unlock; + } + + if (value > MAX_RINGS) { + ret = -EINVAL; + goto out_unlock; + } + + vfpriv->base_fence_ctx = dma_fence_context_alloc(value); + vfpriv->num_rings = value; + break; default: ret = -EINVAL; goto out_unlock;