drm/nouveau: add support for gm204

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

3 files changed, 16 insertions, 11 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index 2c6b4a00debb..7df6acc8bb34 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -1258,7 +1258,7 @@ olddcb_table(struct drm_device *dev)
                 return NULL;
         }
 
-        if (dcb[0] >= 0x41) {
+        if (dcb[0] >= 0x42) {
                 NV_WARN(drm, "DCB version 0x%02x unknown\n", dcb[0]);
                 return NULL;
         } else
@@ -1481,16 +1481,19 @@ parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb,
                         entry->dpconf.link_bw = 540000;
                         break;
                 }
-                switch ((conf & 0x0f000000) >> 24) {
-                case 0xf:
-                        entry->dpconf.link_nr = 4;
-                        break;
-                case 0x3:
-                        entry->dpconf.link_nr = 2;
-                        break;
-                default:
-                        entry->dpconf.link_nr = 1;
-                        break;
+                entry->dpconf.link_nr = (conf & 0x0f000000) >> 24;
+                if (dcb->version < 0x41) {
+                        switch (entry->dpconf.link_nr) {
+                        case 0xf:
+                                entry->dpconf.link_nr = 4;
+                                break;
+                        case 0x3:
+                                entry->dpconf.link_nr = 2;
+                                break;
+                        default:
+                                entry->dpconf.link_nr = 1;
+                                break;
+                        }
                 }
                 link = entry->dpconf.sor.link;
                 entry->i2c_index += NV_I2C_AUX(0);
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 2640fcfa5c37..a311a3f932f0 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -479,6 +479,7 @@ nouveau_display_create(struct drm_device *dev)
 
         if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
                 static const u16 oclass[] = {
+                        GM204_DISP,
                         GM107_DISP,
                         GK110_DISP,
                         GK104_DISP,
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
index 76b8c4f980ea..27d5418ea168 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -266,6 +266,7 @@ nv50_core_create(struct nvif_object *disp, u64 syncbuf, struct nv50_mast *core)
                 .pushbuf = 0xb0007d00,
         };
         static const u32 oclass[] = {
+                GM204_DISP_CORE_CHANNEL_DMA,
                 GM107_DISP_CORE_CHANNEL_DMA,
                 GK110_DISP_CORE_CHANNEL_DMA,
                 GK104_DISP_CORE_CHANNEL_DMA,