drm/nv50-nvc0: activate/update ds channel's framebuffer on modesets
The hw doesn't really appear to be designed to be used the way we have to
use it due to DRI2's design. This leads us to having to keep the flipped
fb support active at all times.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nv50_crtc.c b/drivers/gpu/drm/nouveau/nv50_crtc.c
index 308af1d..568fb47 100644
--- a/drivers/gpu/drm/nouveau/nv50_crtc.c
+++ b/drivers/gpu/drm/nouveau/nv50_crtc.c
@@ -487,6 +487,7 @@
NV_DEBUG_KMS(dev, "index %d\n", nv_crtc->index);
+ nv50_display_flip_stop(crtc);
drm_vblank_pre_modeset(dev, nv_crtc->index);
nv50_crtc_blank(nv_crtc, true);
}
@@ -502,6 +503,7 @@
nv50_crtc_blank(nv_crtc, false);
drm_vblank_post_modeset(dev, nv_crtc->index);
nv50_crtc_wait_complete(crtc);
+ nv50_display_flip_next(crtc, crtc->fb, NULL);
}
static bool
@@ -683,11 +685,16 @@
{
int ret;
+ nv50_display_flip_stop(crtc);
ret = nv50_crtc_do_mode_set_base(crtc, old_fb, x, y, false);
if (ret)
return ret;
- return nv50_crtc_wait_complete(crtc);
+ ret = nv50_crtc_wait_complete(crtc);
+ if (ret)
+ return ret;
+
+ return nv50_display_flip_next(crtc, crtc->fb, NULL);
}
static int
@@ -697,6 +704,7 @@
{
int ret;
+ nv50_display_flip_stop(crtc);
ret = nv50_crtc_do_mode_set_base(crtc, fb, x, y, true);
if (ret)
return ret;