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 --- drivers/gpu/drm/bochs/bochs_kms.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)
diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c index 6b7efcf3..ee2013b 100644 --- a/drivers/gpu/drm/bochs/bochs_kms.c +++ b/drivers/gpu/drm/bochs/bochs_kms.c @@ -108,11 +108,32 @@ 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 = {