drm/amd/display: Implement cursor multiplier

DCN allows cursor multiplier when blending FP16 surface.

Signed-off-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/dc_hw_types.h b/drivers/gpu/drm/amd/display/dc/dc_hw_types.h
index 14afbc5..00afd07 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dc_hw_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_hw_types.h
@@ -490,6 +490,7 @@ struct dc_cursor_attributes {
        uint32_t height;
 
        enum dc_cursor_color_format color_format;
+       uint32_t sdr_white_level; // for boosting (SDR) cursor in HDR mode
 
        /* In case we support HW Cursor rotation in the future */
        enum dc_rotation_angle rotation_angle;

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c
index ec8e833..9eb60a0 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c
@@ -27,6 +27,7 @@
 #include "reg_helper.h"
 #include "basics/conversion.h"
 #include "dcn10_hubp.h"
+#include "custom_float.h"
 
 #define REG(reg)\
        hubp1->hubp_regs->reg
@@ -1038,6 +1039,18 @@ void hubp1_cursor_set_attributes(
        enum cursor_pitch hw_pitch = hubp1_get_cursor_pitch(attr->pitch);
        enum cursor_lines_per_chunk lpc = hubp1_get_lines_per_chunk(
                        attr->width, attr->color_format);
+       struct fixed31_32 multiplier;
+       uint32_t hw_mult = 0x3c00; // 1.0 default multiplier
+       struct custom_float_format fmt;
+
+       fmt.exponenta_bits = 5;
+       fmt.mantissa_bits = 10;
+       fmt.sign = true;
+
+       if (attr->sdr_white_level > 80) {
+               multiplier = dc_fixpt_from_fraction(attr->sdr_white_level, 80);
+               convert_to_custom_float_format(multiplier, &fmt, &hw_mult);
+       }
 
        hubp->curs_attr = *attr;
 
@@ -1060,6 +1073,8 @@ void hubp1_cursor_set_attributes(
                        CURSOR0_DST_Y_OFFSET, 0,
                         /* used to shift the cursor chunk request deadline */
                        CURSOR0_CHUNK_HDL_ADJUST, 3);
+
+       REG_UPDATE(CURSOR0_FP_SCALE_BIAS, CUR0_FP_SCALE, hw_mult);
 }
 
 void hubp1_cursor_set_position(

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.h
index f689fea..9991da5 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.h
@@ -133,7 +133,8 @@
        SRI(CURSOR_CONTROL, CURSOR, id), \
        SRI(CURSOR_POSITION, CURSOR, id), \
        SRI(CURSOR_HOT_SPOT, CURSOR, id), \
-       SRI(CURSOR_DST_OFFSET, CURSOR, id)
+       SRI(CURSOR_DST_OFFSET, CURSOR, id), \
+       SRI(CURSOR0_FP_SCALE_BIAS, CNVC_CUR, id)
 
 #define HUBP_COMMON_REG_VARIABLE_LIST \
        uint32_t DCHUBP_CNTL; \
@@ -241,7 +242,8 @@
        uint32_t CURSOR_POSITION; \
        uint32_t CURSOR_HOT_SPOT; \
        uint32_t CURSOR_DST_OFFSET; \
-       uint32_t HUBP_CLK_CNTL
+       uint32_t HUBP_CLK_CNTL; \
+       uint32_t CURSOR0_FP_SCALE_BIAS
 
 #define HUBP_SF(reg_name, field_name, post_fix)\
        .field_name = reg_name ## __ ## field_name ## post_fix
@@ -424,7 +426,8 @@
        HUBP_SF(CURSOR0_CURSOR_POSITION, CURSOR_Y_POSITION, mask_sh), \
        HUBP_SF(CURSOR0_CURSOR_HOT_SPOT, CURSOR_HOT_SPOT_X, mask_sh), \
        HUBP_SF(CURSOR0_CURSOR_HOT_SPOT, CURSOR_HOT_SPOT_Y, mask_sh), \
-       HUBP_SF(CURSOR0_CURSOR_DST_OFFSET, CURSOR_DST_X_OFFSET, mask_sh)
+       HUBP_SF(CURSOR0_CURSOR_DST_OFFSET, CURSOR_DST_X_OFFSET, mask_sh), \
+       HUBP_SF(CNVC_CUR0_CURSOR0_FP_SCALE_BIAS, CUR0_FP_SCALE, mask_sh)
 
 #define DCN_HUBP_REG_FIELD_LIST(type) \
        type HUBP_BLANK_EN;\
@@ -615,7 +618,8 @@
        type CURSOR_HOT_SPOT_X; \
        type CURSOR_HOT_SPOT_Y; \
        type CURSOR_DST_X_OFFSET; \
-       type OUTPUT_FP
+       type OUTPUT_FP; \
+       type CUR0_FP_SCALE
 
 struct dcn_mi_registers {
        HUBP_COMMON_REG_VARIABLE_LIST;