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Date: Fri, 21 Sep 2018 04:53:44 +0000
From: Jiandi An <jiandi@....com>
To: Gerd Hoffmann <kraxel@...hat.com>,
"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>
CC: David Airlie <airlied@...ux.ie>,
"open list:VIRTIO GPU DRIVER"
<virtualization@...ts.linux-foundation.org>,
open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm/virtio: pass virtio_gpu_object to
virtio_gpu_cmd_transfer_to_host_{2d,3d}
On 09/20/2018 01:29 AM, Gerd Hoffmann wrote:
> Pass virtio_gpu_object down to virtio_gpu_cmd_transfer_to_host_2d and
> virtio_gpu_cmd_transfer_to_host_3d functions, instead of passing just
> the virtio resource handle.
>
> This is needed to lookup the scatter list of the object, for dma sync.
>
> Signed-off-by: Gerd Hoffmann <kraxel@...hat.com>
Tested-by: Jiandi An <jiandi.an@....com>
> ---
> drivers/gpu/drm/virtio/virtgpu_drv.h | 6 ++++--
> drivers/gpu/drm/virtio/virtgpu_fb.c | 2 +-
> drivers/gpu/drm/virtio/virtgpu_ioctl.c | 4 ++--
> drivers/gpu/drm/virtio/virtgpu_plane.c | 4 ++--
> drivers/gpu/drm/virtio/virtgpu_vq.c | 20 ++++++++------------
> 5 files changed, 17 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
> index a2d79e18bd..253fcf018d 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_drv.h
> +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
> @@ -270,7 +270,8 @@ void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
> void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
> uint32_t resource_id);
> void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
> - uint32_t resource_id, uint64_t offset,
> + struct virtio_gpu_object *bo,
> + uint64_t offset,
> __le32 width, __le32 height,
> __le32 x, __le32 y,
> struct virtio_gpu_fence **fence);
> @@ -316,7 +317,8 @@ void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
> struct virtio_gpu_box *box,
> struct virtio_gpu_fence **fence);
> void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
> - uint32_t resource_id, uint32_t ctx_id,
> + struct virtio_gpu_object *bo,
> + uint32_t ctx_id,
> uint64_t offset, uint32_t level,
> struct virtio_gpu_box *box,
> struct virtio_gpu_fence **fence);
> diff --git a/drivers/gpu/drm/virtio/virtgpu_fb.c b/drivers/gpu/drm/virtio/virtgpu_fb.c
> index b9678c4082..3364b0970d 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_fb.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_fb.c
> @@ -95,7 +95,7 @@ static int virtio_gpu_dirty_update(struct virtio_gpu_framebuffer *fb,
>
> offset = (y * fb->base.pitches[0]) + x * bpp;
>
> - virtio_gpu_cmd_transfer_to_host_2d(vgdev, obj->hw_res_handle,
> + virtio_gpu_cmd_transfer_to_host_2d(vgdev, obj,
> offset,
> cpu_to_le32(w),
> cpu_to_le32(h),
> diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> index 7bdf6f0e58..f16b875d6a 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> @@ -429,11 +429,11 @@ static int virtio_gpu_transfer_to_host_ioctl(struct drm_device *dev, void *data,
> convert_to_hw_box(&box, &args->box);
> if (!vgdev->has_virgl_3d) {
> virtio_gpu_cmd_transfer_to_host_2d
> - (vgdev, qobj->hw_res_handle, offset,
> + (vgdev, qobj, offset,
> box.w, box.h, box.x, box.y, NULL);
> } else {
> virtio_gpu_cmd_transfer_to_host_3d
> - (vgdev, qobj->hw_res_handle,
> + (vgdev, qobj,
> vfpriv ? vfpriv->ctx_id : 0, offset,
> args->level, &box, &fence);
> reservation_object_add_excl_fence(qobj->tbo.resv,
> diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c
> index 88f2fb8c61..682a977d68 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_plane.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
> @@ -158,7 +158,7 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
> handle = bo->hw_res_handle;
> if (bo->dumb) {
> virtio_gpu_cmd_transfer_to_host_2d
> - (vgdev, handle, 0,
> + (vgdev, bo, 0,
> cpu_to_le32(plane->state->src_w >> 16),
> cpu_to_le32(plane->state->src_h >> 16),
> cpu_to_le32(plane->state->src_x >> 16),
> @@ -217,7 +217,7 @@ static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
> if (bo && bo->dumb && (plane->state->fb != old_state->fb)) {
> /* new cursor -- update & wait */
> virtio_gpu_cmd_transfer_to_host_2d
> - (vgdev, handle, 0,
> + (vgdev, bo, 0,
> cpu_to_le32(plane->state->crtc_w),
> cpu_to_le32(plane->state->crtc_h),
> 0, 0, &fence);
> diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
> index df32811f2c..4e2e037aed 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_vq.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
> @@ -483,28 +483,26 @@ void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev,
> }
>
> void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
> - uint32_t resource_id, uint64_t offset,
> + struct virtio_gpu_object *bo,
> + uint64_t offset,
> __le32 width, __le32 height,
> __le32 x, __le32 y,
> struct virtio_gpu_fence **fence)
> {
> struct virtio_gpu_transfer_to_host_2d *cmd_p;
> struct virtio_gpu_vbuffer *vbuf;
> - struct virtio_gpu_fbdev *vgfbdev = vgdev->vgfbdev;
> - struct virtio_gpu_framebuffer *fb = &vgfbdev->vgfb;
> - struct virtio_gpu_object *obj = gem_to_virtio_gpu_obj(fb->base.obj[0]);
> bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev);
>
> if (use_dma_api)
> dma_sync_sg_for_device(vgdev->vdev->dev.parent,
> - obj->pages->sgl, obj->pages->nents,
> + bo->pages->sgl, bo->pages->nents,
> DMA_TO_DEVICE);
>
> cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p));
> memset(cmd_p, 0, sizeof(*cmd_p));
>
> cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D);
> - cmd_p->resource_id = cpu_to_le32(resource_id);
> + cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle);
> cmd_p->offset = cpu_to_le64(offset);
> cmd_p->r.width = width;
> cmd_p->r.height = height;
> @@ -791,21 +789,19 @@ virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
> }
>
> void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
> - uint32_t resource_id, uint32_t ctx_id,
> + struct virtio_gpu_object *bo,
> + uint32_t ctx_id,
> uint64_t offset, uint32_t level,
> struct virtio_gpu_box *box,
> struct virtio_gpu_fence **fence)
> {
> struct virtio_gpu_transfer_host_3d *cmd_p;
> struct virtio_gpu_vbuffer *vbuf;
> - struct virtio_gpu_fbdev *vgfbdev = vgdev->vgfbdev;
> - struct virtio_gpu_framebuffer *fb = &vgfbdev->vgfb;
> - struct virtio_gpu_object *obj = gem_to_virtio_gpu_obj(fb->base.obj[0]);
> bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev);
>
> if (use_dma_api)
> dma_sync_sg_for_device(vgdev->vdev->dev.parent,
> - obj->pages->sgl, obj->pages->nents,
> + bo->pages->sgl, bo->pages->nents,
> DMA_TO_DEVICE);
>
> cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p));
> @@ -813,7 +809,7 @@ void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
>
> cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D);
> cmd_p->hdr.ctx_id = cpu_to_le32(ctx_id);
> - cmd_p->resource_id = cpu_to_le32(resource_id);
> + cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle);
> cmd_p->box = *box;
> cmd_p->offset = cpu_to_le64(offset);
> cmd_p->level = cpu_to_le32(level);
>
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