[Intel-gfx] [PATCH v4 2/4] drm/i915/icl: Add register definitions for Multi Segmented gamma

[Shashank Sharma]

From: Uma Shankar <uma.shankar at intel.com>

Add macros to define multi segmented gamma registers

V2: Addressed Ville's comments:
    	Add gen-lable before bit definition
    Addressed Jani's comment
	- Use REG_GENMASK() and REG_BIT()
V3: Addressed Ville's comments:
    - Put comments at the end of line.
    - Change the comment at start of ICL multisegmented gamma registers.
    Added Ville's r-b

Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Cc: Jani Nikula <jani.nikula at linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>

Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: Uma Shankar <uma.shankar at intel.com>
Signed-off-by: Shashank Sharma <shashank.sharma at intel.com>
---
 drivers/gpu/drm/i915/i915_reg.h | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index e97c47fca645..8b77c067e26b 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -7198,7 +7198,8 @@ enum {
 #define  GAMMA_MODE_MODE_8BIT	(0 << 0)
 #define  GAMMA_MODE_MODE_10BIT	(1 << 0)
 #define  GAMMA_MODE_MODE_12BIT	(2 << 0)
-#define  GAMMA_MODE_MODE_SPLIT	(3 << 0)
+#define  GAMMA_MODE_MODE_SPLIT	(3 << 0) /* ivb-bdw */
+#define  GAMMA_MODE_MODE_12BIT_MULTI_SEGMENTED	(3 << 0) /* icl + */
 
 /* DMC/CSR */
 #define CSR_PROGRAM(i)		_MMIO(0x80000 + (i) * 4)
@@ -10145,6 +10146,22 @@ enum skl_power_gate {
 #define PRE_CSC_GAMC_INDEX(pipe)	_MMIO_PIPE(pipe, _PRE_CSC_GAMC_INDEX_A, _PRE_CSC_GAMC_INDEX_B)
 #define PRE_CSC_GAMC_DATA(pipe)		_MMIO_PIPE(pipe, _PRE_CSC_GAMC_DATA_A, _PRE_CSC_GAMC_DATA_B)
 
+/* ICL Multi segmented gamma */
+#define _PAL_PREC_MULTI_SEG_INDEX_A	0x4A408
+#define _PAL_PREC_MULTI_SEG_INDEX_B	0x4AC08
+#define  PAL_PREC_MULTI_SEGMENT_AUTO_INCREMENT		REG_BIT(15)
+#define  PAL_PREC_MULTI_SEGMENT_INDEX_VALUE_MASK	REG_GENMASK(4, 0)
+
+#define _PAL_PREC_MULTI_SEG_DATA_A	0x4A40C
+#define _PAL_PREC_MULTI_SEG_DATA_B	0x4AC0C
+
+#define PREC_PAL_MULTI_SEG_INDEX(pipe)	_MMIO_PIPE(pipe, \
+					_PAL_PREC_MULTI_SEG_INDEX_A, \
+					_PAL_PREC_MULTI_SEG_INDEX_B)
+#define PREC_PAL_MULTI_SEG_DATA(pipe)	_MMIO_PIPE(pipe, \
+					_PAL_PREC_MULTI_SEG_DATA_A, \
+					_PAL_PREC_MULTI_SEG_DATA_B)
+
 /* pipe CSC & degamma/gamma LUTs on CHV */
 #define _CGM_PIPE_A_CSC_COEFF01	(VLV_DISPLAY_BASE + 0x67900)
 #define _CGM_PIPE_A_CSC_COEFF23	(VLV_DISPLAY_BASE + 0x67904)
-- 
2.17.1