drm/i915: add some registers need for displayport MST support.

These are just from the Haswell spec.

Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 2d2c4deb3e87..b0036cd3fe19 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -5815,6 +5815,7 @@ enum punit_power_well {
 #define  TRANS_DDI_EDP_INPUT_A_ONOFF    (4<<12)
 #define  TRANS_DDI_EDP_INPUT_B_ONOFF    (5<<12)
 #define  TRANS_DDI_EDP_INPUT_C_ONOFF    (6<<12)
+#define  TRANS_DDI_DP_VC_PAYLOAD_ALLOC  (1<<8)
 #define  TRANS_DDI_BFI_ENABLE           (1<<4)
 
 /* DisplayPort Transport Control */
@@ -5824,6 +5825,7 @@ enum punit_power_well {
 #define  DP_TP_CTL_ENABLE                       (1<<31)
 #define  DP_TP_CTL_MODE_SST                     (0<<27)
 #define  DP_TP_CTL_MODE_MST                     (1<<27)
+#define  DP_TP_CTL_FORCE_ACT                    (1<<25)
 #define  DP_TP_CTL_ENHANCED_FRAME_ENABLE        (1<<18)
 #define  DP_TP_CTL_FDI_AUTOTRAIN                (1<<15)
 #define  DP_TP_CTL_LINK_TRAIN_MASK              (7<<8)
@@ -5838,8 +5840,13 @@ enum punit_power_well {
 #define DP_TP_STATUS_A                  0x64044
 #define DP_TP_STATUS_B                  0x64144
 #define DP_TP_STATUS(port) _PORT(port, DP_TP_STATUS_A, DP_TP_STATUS_B)
-#define  DP_TP_STATUS_IDLE_DONE         (1<<25)
-#define  DP_TP_STATUS_AUTOTRAIN_DONE    (1<<12)
+#define  DP_TP_STATUS_IDLE_DONE                 (1<<25)
+#define  DP_TP_STATUS_ACT_SENT                  (1<<24)
+#define  DP_TP_STATUS_MODE_STATUS_MST           (1<<23)
+#define  DP_TP_STATUS_AUTOTRAIN_DONE            (1<<12)
+#define  DP_TP_STATUS_PAYLOAD_MAPPING_VC2       (3 << 8)
+#define  DP_TP_STATUS_PAYLOAD_MAPPING_VC1       (3 << 4)
+#define  DP_TP_STATUS_PAYLOAD_MAPPING_VC0       (3 << 0)
 
 /* DDI Buffer Control */
 #define DDI_BUF_CTL_A                           0x64000