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| author | Gerd Hoffmann <kraxel@redhat.com> | 2014-11-19 12:28:12 +0100 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2014-11-20 11:27:31 +1000 |
| commit | 3ce733b909764a3ee17b35d7a2c940fd0bc45d5b (patch) | |
| tree | 5e3c27767a8e6adc1e48349dd0ba1e1c786183c5 | |
| parent | 49b70a31c166a6da12f60ec85da608c064555406 (diff) | |
| download | linux-3ce733b909764a3ee17b35d7a2c940fd0bc45d5b.tar.gz linux-3ce733b909764a3ee17b35d7a2c940fd0bc45d5b.tar.bz2 linux-3ce733b909764a3ee17b35d7a2c940fd0bc45d5b.zip | |
bochs: add page_flip
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>
| -rw-r--r-- | drivers/gpu/drm/bochs/bochs_kms.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c index 5ffd4895d040..85f0f8cf1fb8 100644 --- a/drivers/gpu/drm/bochs/bochs_kms.c +++ b/drivers/gpu/drm/bochs/bochs_kms.c @@ -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 = { |