linux/drivers/gpu/drm/nouveau/nv10_fb.c

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#include "drmP.h"
#include "drm.h"
#include "nouveau_drv.h"
#include "nouveau_drm.h"
void
nv10_fb_set_region_tiling(struct drm_device *dev, int i, uint32_t addr,
uint32_t size, uint32_t pitch)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
uint32_t limit = max(1u, addr + size) - 1;
if (pitch) {
if (dev_priv->card_type >= NV_20)
addr |= 1;
else
addr |= 1 << 31;
}
nv_wr32(dev, NV10_PFB_TLIMIT(i), limit);
nv_wr32(dev, NV10_PFB_TSIZE(i), pitch);
nv_wr32(dev, NV10_PFB_TILE(i), addr);
}
int
nv10_fb_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_fb_engine *pfb = &dev_priv->engine.fb;
int i;
pfb->num_tiles = NV10_PFB_TILE__SIZE;
/* Turn all the tiling regions off. */
for (i = 0; i < pfb->num_tiles; i++)
pfb->set_region_tiling(dev, i, 0, 0, 0);
return 0;
}
void
nv10_fb_takedown(struct drm_device *dev)
{
}