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drm/udl: Implement page_flip ioctl 

This is a very crude page_flip implementation for UDL. There are ways
to make it better (make it asynchronous, make it do actual vsynced
flips...) but that's for another patch.

[airlied: fixup primary change]

Signed-off-by: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Stéphane Marchesin 2014-07-02 15:13:43 -07:00 committed by Dave Airlie
parent 26507b065b
commit 40377ef2d9
1 changed files with 21 additions and 0 deletions
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21
drivers/gpu/drm/udl/udl_modeset.c
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@ -363,6 +363,26 @@ static void udl_crtc_destroy(struct drm_crtc *crtc)
kfree(crtc);
}
static int udl_crtc_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event,
uint32_t page_flip_flags)
{
struct udl_framebuffer *ufb = to_udl_fb(fb);
struct drm_device *dev = crtc->dev;
unsigned long flags;
udl_handle_damage(ufb, 0, 0, fb->width, fb->height);
spin_lock_irqsave(&dev->event_lock, flags);
if (event)
drm_send_vblank_event(dev, 0, event);
spin_unlock_irqrestore(&dev->event_lock, flags);
crtc->primary->fb = fb;
return 0;
}
static void udl_crtc_prepare(struct drm_crtc *crtc)
{
}
@ -384,6 +404,7 @@ static struct drm_crtc_helper_funcs udl_helper_funcs = {
static const struct drm_crtc_funcs udl_crtc_funcs = {
.set_config = drm_crtc_helper_set_config,
.destroy = udl_crtc_destroy,
.page_flip = udl_crtc_page_flip,
};
static int udl_crtc_init(struct drm_device *dev)