diff --git a/drivers/gpu/drm/radeon/reg_srcs/r300 b/drivers/gpu/drm/radeon/reg_srcs/r300
index d927005c6fa22e0b63a2e34519181b64b037d033..19c4663fa9c699c3c97db8349b84a254e082c9f6 100644
--- a/drivers/gpu/drm/radeon/reg_srcs/r300
+++ b/drivers/gpu/drm/radeon/reg_srcs/r300
@@ -708,6 +708,8 @@ r300 0x4f60
 0x4E80 RB3D_AARESOLVE_OFFSET
 0x4E84 RB3D_AARESOLVE_PITCH
 0x4E88 RB3D_AARESOLVE_CTL
+0x4EA0 RB3D_DISCARD_SRC_PIXEL_LTE_THRESHOLD
+0x4EA4 RB3D_DISCARD_SRC_PIXEL_GTE_THRESHOLD
 0x4F04 ZB_ZSTENCILCNTL
 0x4F08 ZB_STENCILREFMASK
 0x4F14 ZB_ZTOP
diff --git a/drivers/gpu/drm/radeon/reg_srcs/rs600 b/drivers/gpu/drm/radeon/reg_srcs/rs600
index 344405a44df921dde7f40f81ae96039fcce276e9..8e3c0b807add9f485afedde7a294357e51e4eddd 100644
--- a/drivers/gpu/drm/radeon/reg_srcs/rs600
+++ b/drivers/gpu/drm/radeon/reg_srcs/rs600
@@ -708,6 +708,8 @@ rs600 0x6d40
 0x4E80 RB3D_AARESOLVE_OFFSET
 0x4E84 RB3D_AARESOLVE_PITCH
 0x4E88 RB3D_AARESOLVE_CTL
+0x4EA0 RB3D_DISCARD_SRC_PIXEL_LTE_THRESHOLD
+0x4EA4 RB3D_DISCARD_SRC_PIXEL_GTE_THRESHOLD
 0x4F04 ZB_ZSTENCILCNTL
 0x4F08 ZB_STENCILREFMASK
 0x4F14 ZB_ZTOP
diff --git a/drivers/gpu/drm/radeon/reg_srcs/rv515 b/drivers/gpu/drm/radeon/reg_srcs/rv515
index 9602026ff9fe7e5364ce3691c28e66e5f09bfb61..0102a0d5735ca9e232acfe4f225a1a40fdb8dcdc 100644
--- a/drivers/gpu/drm/radeon/reg_srcs/rv515
+++ b/drivers/gpu/drm/radeon/reg_srcs/rv515
@@ -483,3 +483,4 @@ rv515 0x6d40
 0x4F50 ZB_HIZ_RDINDEX
 0x4F54 ZB_HIZ_PITCH
 0x4F58 ZB_ZPASS_DATA
+0x4FD4 ZB_STENCILREFMASK_BF