diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index e8687b0f906d..5825319d4d22 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -10499,4 +10499,55 @@ enum skl_power_gate {
 #define  DSC_SLICE_PER_LINE(slice_per_line)		((slice_per_line) << 16)
 #define  DSC_SLICE_CHUNK_SIZE(slice_chunk_aize)		(slice_chunk_size << 0)
 
+/* Icelake Rate Control Buffer Threshold Registers */
+#define DSCA_RC_BUF_THRESH_0			_MMIO(0x6B230)
+#define DSCA_RC_BUF_THRESH_0_UDW		_MMIO(0x6B230 + 4)
+#define DSCC_RC_BUF_THRESH_0			_MMIO(0x6BA30)
+#define DSCC_RC_BUF_THRESH_0_UDW		_MMIO(0x6BA30 + 4)
+#define _ICL_DSC0_RC_BUF_THRESH_0_PB		(0x78254)
+#define _ICL_DSC0_RC_BUF_THRESH_0_UDW_PB	(0x78254 + 4)
+#define _ICL_DSC1_RC_BUF_THRESH_0_PB		(0x78354)
+#define _ICL_DSC1_RC_BUF_THRESH_0_UDW_PB	(0x78354 + 4)
+#define _ICL_DSC0_RC_BUF_THRESH_0_PC		(0x78454)
+#define _ICL_DSC0_RC_BUF_THRESH_0_UDW_PC	(0x78454 + 4)
+#define _ICL_DSC1_RC_BUF_THRESH_0_PC		(0x78554)
+#define _ICL_DSC1_RC_BUF_THRESH_0_UDW_PC	(0x78554 + 4)
+#define ICL_DSC0_RC_BUF_THRESH_0(pipe)		_MMIO_PIPE((pipe) - PIPE_B, \
+						_ICL_DSC0_RC_BUF_THRESH_0_PB, \
+						_ICL_DSC0_RC_BUF_THRESH_0_PC)
+#define ICL_DSC0_RC_BUF_THRESH_0_UDW(pipe)	_MMIO_PIPE((pipe) - PIPE_B, \
+						_ICL_DSC0_RC_BUF_THRESH_0_UDW_PB, \
+						_ICL_DSC0_RC_BUF_THRESH_0_UDW_PC)
+#define ICL_DSC1_RC_BUF_THRESH_0(pipe)		_MMIO_PIPE((pipe) - PIPE_B, \
+						_ICL_DSC1_RC_BUF_THRESH_0_PB, \
+						_ICL_DSC1_RC_BUF_THRESH_0_PC)
+#define ICL_DSC1_RC_BUF_THRESH_0_UDW(pipe)	_MMIO_PIPE((pipe) - PIPE_B, \
+						_ICL_DSC1_RC_BUF_THRESH_0_UDW_PB, \
+						_ICL_DSC1_RC_BUF_THRESH_0_UDW_PC)
+
+#define DSCA_RC_BUF_THRESH_1			_MMIO(0x6B238)
+#define DSCA_RC_BUF_THRESH_1_UDW		_MMIO(0x6B238 + 4)
+#define DSCC_RC_BUF_THRESH_1			_MMIO(0x6BA38)
+#define DSCC_RC_BUF_THRESH_1_UDW		_MMIO(0x6BA38 + 4)
+#define _ICL_DSC0_RC_BUF_THRESH_1_PB		(0x7825C)
+#define _ICL_DSC0_RC_BUF_THRESH_1_UDW_PB	(0x7825C + 4)
+#define _ICL_DSC1_RC_BUF_THRESH_1_PB		(0x7835C)
+#define _ICL_DSC1_RC_BUF_THRESH_1_UDW_PB	(0x7835C + 4)
+#define _ICL_DSC0_RC_BUF_THRESH_1_PC		(0x7845C)
+#define _ICL_DSC0_RC_BUF_THRESH_1_UDW_PC	(0x7845C + 4)
+#define _ICL_DSC1_RC_BUF_THRESH_1_PC		(0x7855C)
+#define _ICL_DSC1_RC_BUF_THRESH_1_UDW_PC	(0x7855C + 4)
+#define ICL_DSC0_RC_BUF_THRESH_1(pipe)		_MMIO_PIPE((pipe) - PIPE_B, \
+						_ICL_DSC0_RC_BUF_THRESH_1_PB, \
+						_ICL_DSC0_RC_BUF_THRESH_1_PC)
+#define ICL_DSC0_RC_BUF_THRESH_1_UDW(pipe)	_MMIO_PIPE((pipe) - PIPE_B, \
+						_ICL_DSC0_RC_BUF_THRESH_1_UDW_PB, \
+						_ICL_DSC0_RC_BUF_THRESH_1_UDW_PC)
+#define ICL_DSC1_RC_BUF_THRESH_1(pipe)		_MMIO_PIPE((pipe) - PIPE_B, \
+						_ICL_DSC1_RC_BUF_THRESH_1_PB, \
+						_ICL_DSC1_RC_BUF_THRESH_1_PC)
+#define ICL_DSC1_RC_BUF_THRESH_1_UDW(pipe)	_MMIO_PIPE((pipe) - PIPE_B, \
+						_ICL_DSC1_RC_BUF_THRESH_1_UDW_PB, \
+						_ICL_DSC1_RC_BUF_THRESH_1_UDW_PC)
+
 #endif /* _I915_REG_H_ */