drm/nouveau: Implement the vblank DRM hooks.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 2e11fd65b4dd..f8987bcb7f51 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -29,6 +29,7 @@
 #include "nouveau_drv.h"
 #include "nouveau_fb.h"
 #include "nouveau_fbcon.h"
+#include "nouveau_hw.h"
 
 static void
 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
@@ -104,3 +105,29 @@ const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 };
 
+int
+nouveau_vblank_enable(struct drm_device *dev, int crtc)
+{
+        struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+        if (dev_priv->card_type >= NV_50)
+                nv_mask(dev, NV50_PDISPLAY_INTR_EN_1, 0,
+                        NV50_PDISPLAY_INTR_EN_1_VBLANK_CRTC_(crtc));
+        else
+                NVWriteCRTC(dev, crtc, NV_PCRTC_INTR_EN_0,
+                            NV_PCRTC_INTR_0_VBLANK);
+
+        return 0;
+}
+
+void
+nouveau_vblank_disable(struct drm_device *dev, int crtc)
+{
+        struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+        if (dev_priv->card_type >= NV_50)
+                nv_mask(dev, NV50_PDISPLAY_INTR_EN_1,
+                        NV50_PDISPLAY_INTR_EN_1_VBLANK_CRTC_(crtc), 0);
+        else
+                NVWriteCRTC(dev, crtc, NV_PCRTC_INTR_EN_0, 0);
+}