drm/nva3/pm: initial attempt at handling 111100/111104

Probably not quite right, but this is enough now to make NVS300 reclock
between all 3 of its perflvls correctly.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nva3_pm.c b/drivers/gpu/drm/nouveau/nva3_pm.c
index 3a23788..8cbe59a 100644 (file)
--- a/drivers/gpu/drm/nouveau/nva3_pm.c
+++ b/drivers/gpu/drm/nouveau/nva3_pm.c
@@ -456,6 +456,9 @@ mclk_timing_set(struct nouveau_mem_exec_func *exec)
                if (info->ramcfg[2] & 0x02)
                        unk718 |= 0x00000100;
                nv_wr32(dev, 0x100718, unk718);
+
+               if (info->ramcfg[2] & 0x10)
+                       nv_wr32(dev, 0x111100, 0x48000000); /*XXX*/
        }
 }
 
@@ -498,15 +501,33 @@ prog_mem(struct drm_device *dev, struct nva3_pm_state *info)
                nv_mask(dev, 0x004168, 0x003f3141, ctrl);
        }
 
+       if (info->ramcfg) {
+               if (info->ramcfg[2] & 0x10) {
+                       nv_mask(dev, 0x111104, 0x00000600, 0x00000000);
+               } else {
+                       nv_mask(dev, 0x111100, 0x40000000, 0x40000000);
+                       nv_mask(dev, 0x111104, 0x00000180, 0x00000000);
+               }
+       }
        if (info->rammap && !(info->rammap[4] & 0x02))
                nv_mask(dev, 0x100200, 0x00000800, 0x00000000);
        nv_wr32(dev, 0x611200, 0x00003300);
+       if (!(info->ramcfg[2] & 0x10))
+               nv_wr32(dev, 0x111100, 0x4c020000); /*XXX*/
 
        nouveau_mem_exec(&exec, info->perflvl);
 
        nv_wr32(dev, 0x611200, 0x00003330);
        if (info->rammap && (info->rammap[4] & 0x02))
                nv_mask(dev, 0x100200, 0x00000800, 0x00000800);
+       if (info->ramcfg) {
+               if (info->ramcfg[2] & 0x10) {
+                       nv_mask(dev, 0x111104, 0x00000180, 0x00000180);
+                       nv_mask(dev, 0x111100, 0x40000000, 0x00000000);
+               } else {
+                       nv_mask(dev, 0x111104, 0x00000600, 0x00000600);
+               }
+       }
 
        if (info->mclk.pll) {
                nv_mask(dev, 0x004168, 0x00000001, 0x00000000);