drm/nouveau: add nv_mask register accessor
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 11c0778..9d53f3d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -1186,6 +1186,14 @@
iowrite32_native(val, dev_priv->mmio + reg);
}
+static inline void nv_mask(struct drm_device *dev, u32 reg, u32 mask, u32 val)
+{
+ u32 tmp = nv_rd32(dev, reg);
+ tmp &= ~mask;
+ tmp |= val;
+ nv_wr32(dev, reg, tmp);
+}
+
static inline u8 nv_rd08(struct drm_device *dev, unsigned reg)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;