drm/gk104-/fb/ram: use parsed timing data in mr routines

All the other chipsets should be moved over to this too.  It's not needed
yet for the upcoming commits, so left this step as it'll conflict badly
with Roy's GT21x reclocking work.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/core/subdev/fb/gddr5.c

@@ -40,7 +40,7 @@ nouveau_gddr5_calc(struct nouveau_ram *ram, bool nuts)
 	int WL, CL, WR, at[2], dt, ds;
 	int rq = ram->freq < 1000000; /* XXX */
 
-	switch (ram->ramcfg.version) {
+	switch (ram->next->bios.ramcfg_ver) {
 	case 0x11:
 		pd =  ram->next->bios.ramcfg_11_01_80;
 		lf =  ram->next->bios.ramcfg_11_01_40;
@@ -54,7 +54,7 @@ nouveau_gddr5_calc(struct nouveau_ram *ram, bool nuts)
 		return -ENOSYS;
 	}
 
-	switch (ram->timing.version) {
+	switch (ram->next->bios.timing_ver) {
 	case 0x20:
 		WL = (ram->next->bios.timing[1] & 0x00000f80) >> 7;
 		CL = (ram->next->bios.timing[1] & 0x0000001f);

drivers/gpu/drm/nouveau/core/subdev/fb/sddr3.c

@@ -72,8 +72,13 @@ nouveau_sddr3_calc(struct nouveau_ram *ram)
 {
 	struct nouveau_bios *bios = nouveau_bios(ram);
 	int CWL, CL, WR, DLL = 0, ODT = 0;
+	u8 ver;
 
-	switch (!!ram->timing.data * ram->timing.version) {
+	ver = !!ram->timing.data * ram->timing.version;
+	if (ram->next)
+		ver = ram->next->bios.timing_ver;
+
+	switch (ver) {
 	case 0x10:
 		if (ram->timing.size < 0x17) {
 			/* XXX: NV50: Get CWL from the timing register */
@@ -86,9 +91,9 @@ nouveau_sddr3_calc(struct nouveau_ram *ram)
 		ODT =   nv_ro08(bios, ram->timing.data + 0x0e) & 0x07;
 		break;
 	case 0x20:
-		CWL =  (nv_ro16(bios, ram->timing.data + 0x04) & 0x0f80) >> 7;
-		CL  =   nv_ro08(bios, ram->timing.data + 0x04) & 0x1f;
-		WR  =   nv_ro08(bios, ram->timing.data + 0x0a) & 0x7f;
+		CWL = (ram->next->bios.timing[1] & 0x00000f80) >> 7;
+		CL  = (ram->next->bios.timing[1] & 0x0000001f) >> 0;
+		WR  = (ram->next->bios.timing[2] & 0x007f0000) >> 16;
 		/* XXX: Get these values from the VBIOS instead */
 		DLL = !(ram->mr[1] & 0x1);
 		ODT =   (ram->mr[1] & 0x004) >> 2 |