From 7082e7a438db2abf13e4e1fa904875034de88b6b Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Thu, 12 Dec 2019 13:53:45 +0100 Subject: drm/virtio: batch display update commands. When the driver submits multiple commands in a row it makes sense to notify the host only after submitting the last one, so the host can process them all at once, with a single vmexit. Add functions to enable/disable notifications to allow that. Use the new functions for primary plane updates. Signed-off-by: Gerd Hoffmann Reviewed-by: Chia-I Wu Link: http://patchwork.freedesktop.org/patch/msgid/20191212125346.8334-3-kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_plane.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/gpu/drm/virtio/virtgpu_plane.c') diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c index 32de6bd9893a..930860906536 100644 --- a/drivers/gpu/drm/virtio/virtgpu_plane.c +++ b/drivers/gpu/drm/virtio/virtgpu_plane.c @@ -146,6 +146,8 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane, return; } + virtio_gpu_disable_notify(vgdev); + vgfb = to_virtio_gpu_framebuffer(plane->state->fb); bo = gem_to_virtio_gpu_obj(vgfb->base.obj[0]); if (bo->dumb) @@ -177,6 +179,8 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane, plane->state->src_y >> 16, plane->state->src_w >> 16, plane->state->src_h >> 16); + + virtio_gpu_enable_notify(vgdev); } static int virtio_gpu_cursor_prepare_fb(struct drm_plane *plane, -- cgit v1.2.3