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Commit ab6a46ea authored by Navare, Manasi D's avatar Navare, Manasi D Committed by Jani Nikula
Browse files

drm: Add DPCD definitions for DP 1.4 DSC feature 



Display stream compression is supported on DP 1.4 DP
devices. This patch adds the corersponding DPCD
register definitions for DSC.

v4:
* Add DSC Enable DPCD register def (Ander)
v3:
* Add some SHIFTS and MASKS for uniformity (Jani Nikula)
v2:
* Rebased on drm-tip

Signed-off-by: default avatarManasi Navare <manasi.d.navare@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491259870-25613-1-git-send-email-manasi.d.navare@intel.com
parent 57fbc055

include/drm/drm_dp_helper.h

+107 −0
Original line number Diff line number Diff line
@@ -179,6 +179,111 @@ 


#define DP_GUID				    0x030   /* 1.2 */



#define DP_DSC_SUPPORT                      0x060   /* DP 1.4 */

# define DP_DSC_DECOMPRESSION_IS_SUPPORTED  (1 << 0)



#define DP_DSC_REV                          0x061

# define DP_DSC_MAJOR_MASK                  (0xf << 0)

# define DP_DSC_MINOR_MASK                  (0xf << 4)

# define DP_DSC_MAJOR_SHIFT                 0

# define DP_DSC_MINOR_SHIFT                 4



#define DP_DSC_RC_BUF_BLK_SIZE              0x062

# define DP_DSC_RC_BUF_BLK_SIZE_1           0x0

# define DP_DSC_RC_BUF_BLK_SIZE_4           0x1

# define DP_DSC_RC_BUF_BLK_SIZE_16          0x2

# define DP_DSC_RC_BUF_BLK_SIZE_64          0x3



#define DP_DSC_RC_BUF_SIZE                  0x063



#define DP_DSC_SLICE_CAP_1                  0x064

# define DP_DSC_1_PER_DP_DSC_SINK           (1 << 0)

# define DP_DSC_2_PER_DP_DSC_SINK           (1 << 1)

# define DP_DSC_4_PER_DP_DSC_SINK           (1 << 3)

# define DP_DSC_6_PER_DP_DSC_SINK           (1 << 4)

# define DP_DSC_8_PER_DP_DSC_SINK           (1 << 5)

# define DP_DSC_10_PER_DP_DSC_SINK          (1 << 6)

# define DP_DSC_12_PER_DP_DSC_SINK          (1 << 7)



#define DP_DSC_LINE_BUF_BIT_DEPTH           0x065

# define DP_DSC_LINE_BUF_BIT_DEPTH_MASK     (0xf << 0)

# define DP_DSC_LINE_BUF_BIT_DEPTH_9        0x0

# define DP_DSC_LINE_BUF_BIT_DEPTH_10       0x1

# define DP_DSC_LINE_BUF_BIT_DEPTH_11       0x2

# define DP_DSC_LINE_BUF_BIT_DEPTH_12       0x3

# define DP_DSC_LINE_BUF_BIT_DEPTH_13       0x4

# define DP_DSC_LINE_BUF_BIT_DEPTH_14       0x5

# define DP_DSC_LINE_BUF_BIT_DEPTH_15       0x6

# define DP_DSC_LINE_BUF_BIT_DEPTH_16       0x7

# define DP_DSC_LINE_BUF_BIT_DEPTH_8        0x8



#define DP_DSC_BLK_PREDICTION_SUPPORT       0x066

# define DP_DSC_BLK_PREDICTION_IS_SUPPORTED (1 << 0)



#define DP_DSC_MAX_BITS_PER_PIXEL_LOW       0x067   /* eDP 1.4 */



#define DP_DSC_MAX_BITS_PER_PIXEL_HI        0x068   /* eDP 1.4 */



#define DP_DSC_DEC_COLOR_FORMAT_CAP         0x069

# define DP_DSC_RGB                         (1 << 0)

# define DP_DSC_YCbCr444                    (1 << 1)

# define DP_DSC_YCbCr422_Simple             (1 << 2)

# define DP_DSC_YCbCr422_Native             (1 << 3)

# define DP_DSC_YCbCr420_Native             (1 << 4)



#define DP_DSC_DEC_COLOR_DEPTH_CAP          0x06A

# define DP_DSC_8_BPC                       (1 << 1)

# define DP_DSC_10_BPC                      (1 << 2)

# define DP_DSC_12_BPC                      (1 << 3)



#define DP_DSC_PEAK_THROUGHPUT              0x06B

# define DP_DSC_THROUGHPUT_MODE_0_MASK      (0xf << 0)

# define DP_DSC_THROUGHPUT_MODE_0_SHIFT     0

# define DP_DSC_THROUGHPUT_MODE_0_340       (1 << 0)

# define DP_DSC_THROUGHPUT_MODE_0_400       (2 << 0)

# define DP_DSC_THROUGHPUT_MODE_0_450       (3 << 0)

# define DP_DSC_THROUGHPUT_MODE_0_500       (4 << 0)

# define DP_DSC_THROUGHPUT_MODE_0_550       (5 << 0)

# define DP_DSC_THROUGHPUT_MODE_0_600       (6 << 0)

# define DP_DSC_THROUGHPUT_MODE_0_650       (7 << 0)

# define DP_DSC_THROUGHPUT_MODE_0_700       (8 << 0)

# define DP_DSC_THROUGHPUT_MODE_0_750       (9 << 0)

# define DP_DSC_THROUGHPUT_MODE_0_800       (10 << 0)

# define DP_DSC_THROUGHPUT_MODE_0_850       (11 << 0)

# define DP_DSC_THROUGHPUT_MODE_0_900       (12 << 0)

# define DP_DSC_THROUGHPUT_MODE_0_950       (13 << 0)

# define DP_DSC_THROUGHPUT_MODE_0_1000      (14 << 0)

# define DP_DSC_THROUGHPUT_MODE_1_MASK      (0xf << 4)

# define DP_DSC_THROUGHPUT_MODE_1_SHIFT     4

# define DP_DSC_THROUGHPUT_MODE_1_340       (1 << 4)

# define DP_DSC_THROUGHPUT_MODE_1_400       (2 << 4)

# define DP_DSC_THROUGHPUT_MODE_1_450       (3 << 4)

# define DP_DSC_THROUGHPUT_MODE_1_500       (4 << 4)

# define DP_DSC_THROUGHPUT_MODE_1_550       (5 << 4)

# define DP_DSC_THROUGHPUT_MODE_1_600       (6 << 4)

# define DP_DSC_THROUGHPUT_MODE_1_650       (7 << 4)

# define DP_DSC_THROUGHPUT_MODE_1_700       (8 << 4)

# define DP_DSC_THROUGHPUT_MODE_1_750       (9 << 4)

# define DP_DSC_THROUGHPUT_MODE_1_800       (10 << 4)

# define DP_DSC_THROUGHPUT_MODE_1_850       (11 << 4)

# define DP_DSC_THROUGHPUT_MODE_1_900       (12 << 4)

# define DP_DSC_THROUGHPUT_MODE_1_950       (13 << 4)

# define DP_DSC_THROUGHPUT_MODE_1_1000      (14 << 4)



#define DP_DSC_MAX_SLICE_WIDTH              0x06C



#define DP_DSC_SLICE_CAP_2                  0x06D

# define DP_DSC_16_PER_DP_DSC_SINK          (1 << 0)

# define DP_DSC_20_PER_DP_DSC_SINK          (1 << 1)

# define DP_DSC_24_PER_DP_DSC_SINK          (1 << 2)



#define DP_DSC_BITS_PER_PIXEL_INC           0x06F

# define DP_DSC_BITS_PER_PIXEL_1_16         0x0

# define DP_DSC_BITS_PER_PIXEL_1_8          0x1

# define DP_DSC_BITS_PER_PIXEL_1_4          0x2

# define DP_DSC_BITS_PER_PIXEL_1_2          0x3

# define DP_DSC_BITS_PER_PIXEL_1            0x4



#define DP_PSR_SUPPORT                      0x070   /* XXX 1.2? */

# define DP_PSR_IS_SUPPORTED                1

# define DP_PSR2_IS_SUPPORTED		    2	    /* eDP 1.4 */
@@ -339,6 +444,8 @@ 
#define DP_AUX_FRAME_SYNC_VALUE		    0x15c   /* eDP 1.4 */

# define DP_AUX_FRAME_SYNC_VALID	    (1 << 0)



#define DP_DSC_ENABLE                       0x160   /* DP 1.4 */



#define DP_PSR_EN_CFG			    0x170   /* XXX 1.2? */

# define DP_PSR_ENABLE			    (1 << 0)

# define DP_PSR_MAIN_LINK_ACTIVE	    (1 << 1)