drivers/gpu/drm/nouveau/nv40_mc.c

   1 #include "drmP.h"
   2 #include "drm.h"
   3 #include "nouveau_drv.h"
   4 #include "nouveau_drm.h"
   5
   6 int
   7 nv40_mc_init(struct drm_device *dev)
   8 {
   9         struct drm_nouveau_private *dev_priv = dev->dev_private;
  10         uint32_t tmp;
  11
  12         /* Power up everything, resetting each individual unit will
  13          * be done later if needed.
  14          */
  15         nv_wr32(dev, NV03_PMC_ENABLE, 0xFFFFFFFF);
  16
  17         switch (dev_priv->chipset) {
  18         case 0x44:
  19         case 0x46: /* G72 */
  20         case 0x4e:
  21         case 0x4c: /* C51_G7X */
  22                 tmp = nv_rd32(dev, NV40_PFB_020C);
  23                 nv_wr32(dev, NV40_PMC_1700, tmp);
  24                 nv_wr32(dev, NV40_PMC_1704, 0);
  25                 nv_wr32(dev, NV40_PMC_1708, 0);
  26                 nv_wr32(dev, NV40_PMC_170C, tmp);
  27                 break;
  28         default:
  29                 break;
  30         }
  31
  32         return 0;
  33 }
  34
  35 void
  36 nv40_mc_takedown(struct drm_device *dev)
  37 {
  38 }