drm/nv50: fix detection of second vram rank
Goes a long way to correcting NVS295 memory reclocking issues.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Martin Peres <martin.peres@labri.fr>
diff --git a/drivers/gpu/drm/nouveau/nv50_vram.c b/drivers/gpu/drm/nouveau/nv50_vram.c
index a52b9a5..9ed9ae39 100644
--- a/drivers/gpu/drm/nouveau/nv50_vram.c
+++ b/drivers/gpu/drm/nouveau/nv50_vram.c
@@ -207,7 +207,7 @@
break;
}
- dev_priv->vram_rank_B = (nv_rd32(dev, NV04_PFB_CFG0) & 0x100) >> 8;
+ 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;