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authorDaniel Vetter <daniel.vetter@ffwll.ch>2016-06-10 00:07:53 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2016-06-14 16:32:47 +0200
commit0d841ac0ec213f70ab59d65129e80f229846fadf (patch)
treedb4c8a59bd336bad2a58d53a0b32e4cab9ffdf39 /drivers
parentb0212486909de4f239ca9f20d032de1b1f2dc52e (diff)
drm/virtio: Don't reinvent a flipping wheel
Now that the core helpers support nonblocking atomic commits there's no need to invent that wheel separately (instead of fixing the bug in the atomic implementation of virtio, as it should have been done!). v2: Rebased on top of commit e7cf0963f816fa44190caaf51aeffaa614c340c6 Author: Gerd Hoffmann <kraxel@redhat.com> Date: Tue May 31 08:50:47 2016 +0200 virtio-gpu: add atomic_commit function Cc: Gerd Hoffmann <kraxel@redhat.com> Tested-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1465510073-20951-1-git-send-email-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_display.c71
1 files changed, 13 insertions, 58 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c b/drivers/gpu/drm/virtio/virtgpu_display.c
index ac8ea7dbf7b0..ac758cdbc1bc 100644
--- a/drivers/gpu/drm/virtio/virtgpu_display.c
+++ b/drivers/gpu/drm/virtio/virtgpu_display.c
@@ -38,56 +38,11 @@
#define XRES_MAX 8192
#define YRES_MAX 8192
-static int virtio_gpu_page_flip(struct drm_crtc *crtc,
- struct drm_framebuffer *fb,
- struct drm_pending_vblank_event *event,
- uint32_t flags)
-{
- struct virtio_gpu_device *vgdev = crtc->dev->dev_private;
- struct virtio_gpu_output *output =
- container_of(crtc, struct virtio_gpu_output, crtc);
- struct drm_plane *plane = crtc->primary;
- struct virtio_gpu_framebuffer *vgfb;
- struct virtio_gpu_object *bo;
- unsigned long irqflags;
- uint32_t handle;
-
- plane->fb = fb;
- vgfb = to_virtio_gpu_framebuffer(plane->fb);
- bo = gem_to_virtio_gpu_obj(vgfb->obj);
- handle = bo->hw_res_handle;
-
- DRM_DEBUG("handle 0x%x%s, crtc %dx%d\n", handle,
- bo->dumb ? ", dumb" : "",
- crtc->mode.hdisplay, crtc->mode.vdisplay);
- if (bo->dumb) {
- virtio_gpu_cmd_transfer_to_host_2d
- (vgdev, handle, 0,
- cpu_to_le32(crtc->mode.hdisplay),
- cpu_to_le32(crtc->mode.vdisplay),
- 0, 0, NULL);
- }
- virtio_gpu_cmd_set_scanout(vgdev, output->index, handle,
- crtc->mode.hdisplay,
- crtc->mode.vdisplay, 0, 0);
- virtio_gpu_cmd_resource_flush(vgdev, handle, 0, 0,
- crtc->mode.hdisplay,
- crtc->mode.vdisplay);
-
- if (event) {
- spin_lock_irqsave(&crtc->dev->event_lock, irqflags);
- drm_crtc_send_vblank_event(crtc, event);
- spin_unlock_irqrestore(&crtc->dev->event_lock, irqflags);
- }
-
- return 0;
-}
-
static const struct drm_crtc_funcs virtio_gpu_crtc_funcs = {
.set_config = drm_atomic_helper_set_config,
.destroy = drm_crtc_cleanup,
- .page_flip = virtio_gpu_page_flip,
+ .page_flip = drm_atomic_helper_page_flip,
.reset = drm_atomic_helper_crtc_reset,
.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
@@ -185,6 +140,7 @@ static void virtio_gpu_crtc_atomic_flush(struct drm_crtc *crtc,
spin_lock_irqsave(&crtc->dev->event_lock, flags);
if (crtc->state->event)
drm_crtc_send_vblank_event(crtc, crtc->state->event);
+ crtc->state->event = NULL;
spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
}
@@ -378,30 +334,28 @@ virtio_gpu_user_framebuffer_create(struct drm_device *dev,
return &virtio_gpu_fb->base;
}
-static int vgdev_atomic_commit(struct drm_device *dev,
- struct drm_atomic_state *state,
- bool nonblock)
+static void vgdev_atomic_commit_tail(struct drm_atomic_state *state)
{
- if (nonblock)
- return -EBUSY;
-
- drm_atomic_helper_swap_state(state, true);
- drm_atomic_helper_wait_for_fences(dev, state);
+ struct drm_device *dev = state->dev;
drm_atomic_helper_commit_modeset_disables(dev, state);
drm_atomic_helper_commit_modeset_enables(dev, state);
drm_atomic_helper_commit_planes(dev, state, true);
+ drm_atomic_helper_commit_hw_done(state);
+
drm_atomic_helper_wait_for_vblanks(dev, state);
drm_atomic_helper_cleanup_planes(dev, state);
- drm_atomic_state_free(state);
- return 0;
}
+struct drm_mode_config_helper_funcs virtio_mode_config_helpers = {
+ .atomic_commit_tail = vgdev_atomic_commit_tail,
+};
+
static const struct drm_mode_config_funcs virtio_gpu_mode_funcs = {
.fb_create = virtio_gpu_user_framebuffer_create,
.atomic_check = drm_atomic_helper_check,
- .atomic_commit = vgdev_atomic_commit,
+ .atomic_commit = drm_atomic_helper_commit,
};
int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev)
@@ -409,7 +363,8 @@ int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev)
int i;
drm_mode_config_init(vgdev->ddev);
- vgdev->ddev->mode_config.funcs = (void *)&virtio_gpu_mode_funcs;
+ vgdev->ddev->mode_config.funcs = &virtio_gpu_mode_funcs;
+ vgdev->ddev->mode_config.helper_private = &virtio_mode_config_helpers;
/* modes will be validated against the framebuffer size */
vgdev->ddev->mode_config.min_width = XRES_MIN;