drm/nouveau/dp: support version 4.0 of DP table

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

3 files changed, 19 insertions, 1 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index 8dbeeea91872..637afe71de56 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -1144,7 +1144,8 @@ init_dp_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
                 break;
         case 1:
         case 2:
-                if (!(entry[5] & cond))
+                if ((table[0]  < 0x40 && !(entry[5] & cond)) ||
+                    (table[0] == 0x40 && !(entry[4] & cond)))
                         iexec->execute = false;
                 break;
         case 5:
diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c
index 302b2f7d0678..d996134b1b28 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dp.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dp.c
@@ -188,6 +188,7 @@ nouveau_dp_bios_data(struct drm_device *dev, struct dcb_entry *dcb, u8 **entry)
         case 0x20:
         case 0x21:
         case 0x30:
+        case 0x40:
                 break;
         default:
                 NV_ERROR(dev, "displayport table 0x%02x unknown\n", table[0]);
@@ -366,6 +367,10 @@ dp_set_downspread(struct drm_device *dev, struct dp_state *dp, bool enable)
                 if (table[0] >= 0x20 && table[0] <= 0x30) {
                         if (enable) script = ROM16(entry[12]);
                         else        script = ROM16(entry[14]);
+                } else
+                if (table[0] == 0x40) {
+                        if (enable) script = ROM16(entry[11]);
+                        else        script = ROM16(entry[13]);
                 }
         }
 
@@ -380,6 +385,9 @@ dp_link_train_init(struct drm_device *dev, struct dp_state *dp)
         if (table) {
                 if (table[0] >= 0x20 && table[0] <= 0x30)
                         script = ROM16(entry[6]);
+                else
+                if (table[0] == 0x40)
+                        script = ROM16(entry[5]);
         }
 
         nouveau_bios_run_init_table(dev, script, dp->dcb, dp->crtc);
@@ -393,6 +401,9 @@ dp_link_train_fini(struct drm_device *dev, struct dp_state *dp)
         if (table) {
                 if (table[0] >= 0x20 && table[0] <= 0x30)
                         script = ROM16(entry[8]);
+                else
+                if (table[0] == 0x40)
+                        script = ROM16(entry[7]);
         }
 
         nouveau_bios_run_init_table(dev, script, dp->dcb, dp->crtc);
diff --git a/drivers/gpu/drm/nouveau/nvd0_display.c b/drivers/gpu/drm/nouveau/nvd0_display.c
index d69642da8b56..0247250939e8 100644
--- a/drivers/gpu/drm/nouveau/nvd0_display.c
+++ b/drivers/gpu/drm/nouveau/nvd0_display.c
@@ -1226,6 +1226,11 @@ nvd0_sor_dp_train_adj(struct drm_device *dev, struct dcb_entry *dcb,
                 if (table[0] == 0x30) {
                         config  = entry + table[4];
                         config += table[5] * preem;
+                } else
+                if (table[0] == 0x40) {
+                        config  = table + table[1];
+                        config += table[2] * table[3];
+                        config += table[6] * preem;
                 }
         }
 
@@ -1258,6 +1263,7 @@ nvd0_sor_dp_link_set(struct drm_device *dev, struct dcb_entry *dcb, int crtc,
         table = nouveau_dp_bios_data(dev, dcb, &entry);
         if (table) {
                 if      (table[0] == 0x30) entry = ROMPTR(dev, entry[10]);
+                else if (table[0] == 0x40) entry = ROMPTR(dev, entry[9]);
                 else                       entry = NULL;
 
                 while (entry) {