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path: root/drivers/gpu/drm/nouveau/nv40_mc.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nv40_mc.c')
-rw-r--r--drivers/gpu/drm/nouveau/nv40_mc.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv40_mc.c b/drivers/gpu/drm/nouveau/nv40_mc.c
new file mode 100644
index 000000000000..2a3495e848e9
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nv40_mc.c
@@ -0,0 +1,38 @@
+#include "drmP.h"
+#include "drm.h"
+#include "nouveau_drv.h"
+#include "nouveau_drm.h"
+
+int
+nv40_mc_init(struct drm_device *dev)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ uint32_t tmp;
+
+ /* Power up everything, resetting each individual unit will
+ * be done later if needed.
+ */
+ nv_wr32(dev, NV03_PMC_ENABLE, 0xFFFFFFFF);
+
+ switch (dev_priv->chipset) {
+ case 0x44:
+ case 0x46: /* G72 */
+ case 0x4e:
+ case 0x4c: /* C51_G7X */
+ tmp = nv_rd32(dev, NV40_PFB_020C);
+ nv_wr32(dev, NV40_PMC_1700, tmp);
+ nv_wr32(dev, NV40_PMC_1704, 0);
+ nv_wr32(dev, NV40_PMC_1708, 0);
+ nv_wr32(dev, NV40_PMC_170C, tmp);
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+void
+nv40_mc_takedown(struct drm_device *dev)
+{
+}