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Subject[PATCH v3 2/4] drm/virtio: batch plane updates (pageflip)
Date
Move virtio_gpu_notify() to higher-level functions for
virtio_gpu_cmd_resource_flush(), virtio_gpu_cmd_set_scanout() and
virtio_gpu_cmd_transfer_to_host_{2d,3d}().

virtio_gpu_primary_plane_update() will notify only once for a series
of commands (restores plane update command batching).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
drivers/gpu/drm/virtio/virtgpu_display.c | 2 ++
drivers/gpu/drm/virtio/virtgpu_ioctl.c | 1 +
drivers/gpu/drm/virtio/virtgpu_plane.c | 3 +++
drivers/gpu/drm/virtio/virtgpu_vq.c | 4 ----
4 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c b/drivers/gpu/drm/virtio/virtgpu_display.c
index af953db4a0c9..2b7e6ae65546 100644
--- a/drivers/gpu/drm/virtio/virtgpu_display.c
+++ b/drivers/gpu/drm/virtio/virtgpu_display.c
@@ -90,6 +90,7 @@ static void virtio_gpu_crtc_mode_set_nofb(struct drm_crtc *crtc)
virtio_gpu_cmd_set_scanout(vgdev, output->index, 0,
crtc->mode.hdisplay,
crtc->mode.vdisplay, 0, 0);
+ virtio_gpu_notify(vgdev);
}

static void virtio_gpu_crtc_atomic_enable(struct drm_crtc *crtc,
@@ -108,6 +109,7 @@ static void virtio_gpu_crtc_atomic_disable(struct drm_crtc *crtc,
struct virtio_gpu_output *output = drm_crtc_to_virtio_gpu_output(crtc);

virtio_gpu_cmd_set_scanout(vgdev, output->index, 0, 0, 0, 0, 0);
+ virtio_gpu_notify(vgdev);
output->enabled = false;
}

diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 0477d1250f2d..467649733d24 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -359,6 +359,7 @@ static int virtio_gpu_transfer_to_host_ioctl(struct drm_device *dev, void *data,
args->level, &args->box, objs, fence);
dma_fence_put(&fence->f);
}
+ virtio_gpu_notify(vgdev);
return 0;

err_unlock:
diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c
index 08b2e4127eb3..52d24179bcec 100644
--- a/drivers/gpu/drm/virtio/virtgpu_plane.c
+++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
@@ -148,6 +148,7 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
plane->state->src_w >> 16,
plane->state->src_h >> 16,
0, 0);
+ virtio_gpu_notify(vgdev);
return;
}

@@ -184,6 +185,7 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
rect.y1,
rect.x2 - rect.x1,
rect.y2 - rect.y1);
+ virtio_gpu_notify(vgdev);
}

static int virtio_gpu_cursor_prepare_fb(struct drm_plane *plane,
@@ -262,6 +264,7 @@ static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
plane->state->crtc_w,
plane->state->crtc_h,
0, 0, objs, vgfb->fence);
+ virtio_gpu_notify(vgdev);
dma_fence_wait(&vgfb->fence->f, true);
dma_fence_put(&vgfb->fence->f);
vgfb->fence = NULL;
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 812212975440..9d4ca0fafa5f 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -567,7 +567,6 @@ void virtio_gpu_cmd_set_scanout(struct virtio_gpu_device *vgdev,
cmd_p->r.y = cpu_to_le32(y);

virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
- virtio_gpu_notify(vgdev);
}

void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev,
@@ -589,7 +588,6 @@ void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev,
cmd_p->r.y = cpu_to_le32(y);

virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
- virtio_gpu_notify(vgdev);
}

void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
@@ -622,7 +620,6 @@ void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
cmd_p->r.y = cpu_to_le32(y);

virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
- virtio_gpu_notify(vgdev);
}

static void
@@ -1048,7 +1045,6 @@ void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
cmd_p->level = cpu_to_le32(level);

virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
- virtio_gpu_notify(vgdev);
}

void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
--
2.18.2
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