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path: root/drivers/gpu/drm/nouveau/nv50_vram.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_vram.c')
-rw-r--r--drivers/gpu/drm/nouveau/nv50_vram.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_vram.c b/drivers/gpu/drm/nouveau/nv50_vram.c
index 2e45e57fd869..9ed9ae397d75 100644
--- a/drivers/gpu/drm/nouveau/nv50_vram.c
+++ b/drivers/gpu/drm/nouveau/nv50_vram.c
@@ -189,8 +189,25 @@ nv50_vram_init(struct drm_device *dev)
struct nouveau_vram_engine *vram = &dev_priv->engine.vram;
const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */
const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */
+ u32 pfb714 = nv_rd32(dev, 0x100714);
u32 rblock, length;
+ switch (pfb714 & 0x00000007) {
+ case 0: dev_priv->vram_type = NV_MEM_TYPE_DDR1; break;
+ case 1:
+ if (nouveau_mem_vbios_type(dev) == NV_MEM_TYPE_DDR3)
+ dev_priv->vram_type = NV_MEM_TYPE_DDR3;
+ else
+ dev_priv->vram_type = NV_MEM_TYPE_DDR2;
+ break;
+ case 2: dev_priv->vram_type = NV_MEM_TYPE_GDDR3; break;
+ case 3: dev_priv->vram_type = NV_MEM_TYPE_GDDR4; break;
+ case 4: dev_priv->vram_type = NV_MEM_TYPE_GDDR5; break;
+ default:
+ break;
+ }
+
+ dev_priv->vram_rank_B = !!(nv_rd32(dev, 0x100200) & 0x4);
dev_priv->vram_size = nv_rd32(dev, 0x10020c);
dev_priv->vram_size |= (dev_priv->vram_size & 0xff) << 32;
dev_priv->vram_size &= 0xffffffff00ULL;