diff options
Diffstat (limited to 'src/amdgpu_present.c')
| -rw-r--r-- | src/amdgpu_present.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/amdgpu_present.c b/src/amdgpu_present.c index 85b2e67..f3af045 100644 --- a/src/amdgpu_present.c +++ b/src/amdgpu_present.c @@ -88,6 +88,23 @@ amdgpu_present_get_ust_msc(RRCrtcPtr crtc, CARD64 *ust, CARD64 *msc) } /* + * Changes the variable refresh state for every CRTC on the screen. + */ +static void +amdgpu_present_set_screen_vrr(ScrnInfoPtr scrn) +{ + AMDGPUInfoPtr info = AMDGPUPTR(scrn); + xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn); + xf86CrtcPtr crtc; + int i; + + for (i = 0; i < config->num_crtc; i++) { + crtc = config->crtc[i]; + drmmode_crtc_set_vrr(crtc, info->drmmode.vrr_flipping); + } +} + +/* * Flush the DRM event queue when full; this * makes space for new requests */ @@ -275,6 +292,16 @@ amdgpu_present_check_flip(RRCrtcPtr crtc, WindowPtr window, PixmapPtr pixmap, info->flip_window = window; + /* A window can only flip if it covers the entire X screen. + * Only one window can flip at a time. + * + * If the window also has the variable refresh property then + * variable refresh supported can be enabled on every CRTC. + */ + info->drmmode.vrr_flipping = + info->vrr_support && + amdgpu_window_has_variable_refresh(window); + return TRUE; } @@ -329,6 +356,7 @@ amdgpu_present_flip(RRCrtcPtr crtc, uint64_t event_id, uint64_t target_msc, event->event_id = event_id; + amdgpu_present_set_screen_vrr(scrn); amdgpu_glamor_flush(scrn); ret = amdgpu_do_pageflip(scrn, AMDGPU_DRM_QUEUE_CLIENT_DEFAULT, @@ -362,6 +390,8 @@ amdgpu_present_unflip(ScreenPtr screen, uint64_t event_id) int i; info->flip_window = NULL; + info->drmmode.vrr_flipping = FALSE; + amdgpu_present_set_screen_vrr(scrn); if (!amdgpu_present_check_unflip(scrn)) goto modeset; |