drm/nouveau/pm: track mr2 for gddr3

There's some "extended" GDDR3 chipsets out there with EMRS2 settings that
change the layout of MRS/EMRS1 bitmaps.. Sigh.. Still need to track down
how exactly we're supposed to handle this.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Martin Peres <martin.peres@labri.fr>

diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c
index cf82f17..3d43098 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_mem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_mem.c
@@ -766,8 +766,10 @@ nouveau_mem_gddr3_mr(struct drm_device *dev, u32 freq,
        t->mr[1] = (boot->mr[1] & 0x100f40) | t->drive_strength |
                   (t->odt << 2) |
                   (nv_mem_wr_lut_gddr3[e->tWR] & 0xf) << 4;
+       t->mr[2] = boot->mr[2];
 
-       NV_DEBUG(dev, "(%u) MR: %08x %08x", t->id, t->mr[0], t->mr[1]);
+       NV_DEBUG(dev, "(%u) MR: %08x %08x %08x", t->id,
+                     t->mr[0], t->mr[1], t->mr[2]);
        return 0;
 }
 
@@ -963,6 +965,7 @@ nouveau_mem_exec(struct nouveau_mem_exec_func *exec,
 
        /* fetch current MRs */
        switch (dev_priv->vram_type) {
+       case NV_MEM_TYPE_GDDR3:
        case NV_MEM_TYPE_DDR3:
                mr[2] = exec->mrg(exec, 2);
        default: