korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2025-01-19 04:14:49 +08:00
Code Issues Packages Projects Releases Wiki Activity

bochs: add page_flip

Browse Source 
Implement crtc page_flip callback for bochsdrm.  The qemu stdvga has no
vblank signaling, so we have to fake it.  We do so by instantly calling
drm_send_vblank_event.  Tested with kmscon.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Gerd Hoffmann 2014-11-19 12:28:12 +01:00 committed by Dave Airlie
parent 49b70a31c1
commit 3ce733b909
1 changed files with 21 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/gpu/drm/bochs/bochs_kms.c
View File

@ -109,11 +109,32 @@ static void bochs_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
{
}
static int bochs_crtc_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event,
uint32_t page_flip_flags)
{
struct bochs_device *bochs =
container_of(crtc, struct bochs_device, crtc);
struct drm_framebuffer *old_fb = crtc->primary->fb;
unsigned long irqflags;
crtc->primary->fb = fb;
bochs_crtc_mode_set_base(crtc, 0, 0, old_fb);
if (event) {
spin_lock_irqsave(&bochs->dev->event_lock, irqflags);
drm_send_vblank_event(bochs->dev, -1, event);
spin_unlock_irqrestore(&bochs->dev->event_lock, irqflags);
}
return 0;
}
/* These provide the minimum set of functions required to handle a CRTC */
static const struct drm_crtc_funcs bochs_crtc_funcs = {
.gamma_set = bochs_crtc_gamma_set,
.set_config = drm_crtc_helper_set_config,
.destroy = drm_crtc_cleanup,
.page_flip = bochs_crtc_page_flip,
};
static const struct drm_crtc_helper_funcs bochs_helper_funcs = {