drivers/gpu/drm/nouveau/nv10_fb.c

   1 #include "drmP.h"
   2 #include "drm.h"
   3 #include "nouveau_drv.h"
   4 #include "nouveau_drm.h"
   5
   6 void
   7 nv10_fb_set_region_tiling(struct drm_device *dev, int i, uint32_t addr,
   8                           uint32_t size, uint32_t pitch)
   9 {
  10         struct drm_nouveau_private *dev_priv = dev->dev_private;
  11         uint32_t limit = max(1u, addr + size) - 1;
  12
  13         if (pitch) {
  14                 if (dev_priv->card_type >= NV_20)
  15                         addr |= 1;
  16                 else
  17                         addr |= 1 << 31;
  18         }
  19
  20         nv_wr32(dev, NV10_PFB_TLIMIT(i), limit);
  21         nv_wr32(dev, NV10_PFB_TSIZE(i), pitch);
  22         nv_wr32(dev, NV10_PFB_TILE(i), addr);
  23 }
  24
  25 int
  26 nv10_fb_init(struct drm_device *dev)
  27 {
  28         struct drm_nouveau_private *dev_priv = dev->dev_private;
  29         struct nouveau_fb_engine *pfb = &dev_priv->engine.fb;
  30         int i;
  31
  32         pfb->num_tiles = NV10_PFB_TILE__SIZE;
  33
  34         /* Turn all the tiling regions off. */
  35         for (i = 0; i < pfb->num_tiles; i++)
  36                 pfb->set_region_tiling(dev, i, 0, 0, 0);
  37
  38         return 0;
  39 }
  40
  41 void
  42 nv10_fb_takedown(struct drm_device *dev)
  43 {
  44 }