drm/amd/display: Return last used DRR VTOTAL from DC

[How]
Add call to get the last used VTOTAL from DC

Signed-off-by: Jayendran Ramani <Jayendran.Ramani@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 2b7639a..be1dbd3 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -325,6 +325,48 @@ bool dc_stream_adjust_vmin_vmax(struct dc *dc,
        return ret;
 }
 
+/**
+ *****************************************************************************
+ *  Function: dc_stream_get_last_vrr_vtotal
+ *
+ *  @brief
+ *     Looks up the pipe context of dc_stream_state and gets the
+ *     last VTOTAL used by DRR (Dynamic Refresh Rate)
+ *
+ *  @param [in] dc: dc reference
+ *  @param [in] stream: Initial dc stream state
+ *  @param [in] adjust: Updated parameters for vertical_total_min and
+ *  vertical_total_max
+ *****************************************************************************
+ */
+bool dc_stream_get_last_used_drr_vtotal(struct dc *dc,
+               struct dc_stream_state *stream,
+               uint32_t *refresh_rate)
+{
+       bool status = false;
+
+       int i = 0;
+
+       for (i = 0; i < MAX_PIPES; i++) {
+               struct pipe_ctx *pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+
+               if (pipe->stream == stream && pipe->stream_res.tg) {
+                       /* Only execute if a function pointer has been defined for
+                        * the DC version in question
+                        */
+                       if (pipe->stream_res.tg->funcs->get_last_used_drr_vtotal) {
+                               pipe->stream_res.tg->funcs->get_last_used_drr_vtotal(pipe->stream_res.tg, refresh_rate);
+
+                               status = true;
+
+                               break;
+                       }
+               }
+       }
+
+       return status;
+}
+
 bool dc_stream_get_crtc_position(struct dc *dc,
                struct dc_stream_state **streams, int num_streams,
                unsigned int *v_pos, unsigned int *nom_v_pos)

diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
index 0ab1a33..b8ebc1f 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -465,6 +465,10 @@ bool dc_stream_adjust_vmin_vmax(struct dc *dc,
                                struct dc_stream_state *stream,
                                struct dc_crtc_timing_adjust *adjust);
 
+bool dc_stream_get_last_used_drr_vtotal(struct dc *dc,
+               struct dc_stream_state *stream,
+               uint32_t *refresh_rate);
+
 bool dc_stream_get_crtc_position(struct dc *dc,
                                 struct dc_stream_state **stream,
                                 int num_streams,

diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator.c
index d88a745..27cbb5b 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator.c
@@ -2231,6 +2231,7 @@ static const struct timing_generator_funcs dce110_tg_funcs = {
                                dce110_timing_generator_enable_advanced_request,
                .set_drr =
                                dce110_timing_generator_set_drr,
+               .get_last_used_drr_vtotal = NULL,
                .set_static_screen_control =
                        dce110_timing_generator_set_static_screen_control,
                .set_test_pattern = dce110_timing_generator_set_test_pattern,

diff --git a/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c b/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c
index b57c466..4af0c70 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c
+++ b/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c
@@ -1190,6 +1190,7 @@ static const struct timing_generator_funcs dce120_tg_funcs = {
                .tear_down_global_swap_lock = dce120_timing_generator_tear_down_global_swap_lock,
                .enable_advanced_request = dce120_timing_generator_enable_advanced_request,
                .set_drr = dce120_timing_generator_set_drr,
+               .get_last_used_drr_vtotal = NULL,
                .set_static_screen_control = dce120_timing_generator_set_static_screen_control,
                .set_test_pattern = dce120_timing_generator_set_test_pattern,
                .arm_vert_intr = dce120_arm_vert_intr,

diff --git a/drivers/gpu/drm/amd/display/dc/dce80/dce80_timing_generator.c b/drivers/gpu/drm/amd/display/dc/dce80/dce80_timing_generator.c
index 397e7f9..b8fd43d 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dce80/dce80_timing_generator.c
+++ b/drivers/gpu/drm/amd/display/dc/dce80/dce80_timing_generator.c
@@ -209,6 +209,7 @@ static const struct timing_generator_funcs dce80_tg_funcs = {
                .tear_down_global_swap_lock =
                                dce110_timing_generator_tear_down_global_swap_lock,
                .set_drr = dce110_timing_generator_set_drr,
+               .get_last_used_drr_vtotal = NULL,
                .set_static_screen_control =
                        dce110_timing_generator_set_static_screen_control,
                .set_test_pattern = dce110_timing_generator_set_test_pattern,

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
index 9bc97e9..3696faf 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
@@ -1554,6 +1554,7 @@ static const struct timing_generator_funcs dcn10_tg_funcs = {
                .unlock = optc1_unlock,
                .enable_optc_clock = optc1_enable_optc_clock,
                .set_drr = optc1_set_drr,
+               .get_last_used_drr_vtotal = NULL,
                .set_static_screen_control = optc1_set_static_screen_control,
                .set_test_pattern = optc1_set_test_pattern,
                .program_stereo = optc1_program_stereo,

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h
index a6b7490..29d6fbe 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h
@@ -171,6 +171,7 @@ struct dcn_optc_registers {
        uint32_t OPTC_DATA_FORMAT_CONTROL;
        uint32_t OPTC_BYTES_PER_PIXEL;
        uint32_t OPTC_WIDTH_CONTROL;
+       uint32_t OTG_DRR_CONTROL;
        uint32_t OTG_BLANK_DATA_COLOR;
        uint32_t OTG_BLANK_DATA_COLOR_EXT;
        uint32_t OTG_DRR_TRIGGER_WINDOW;
@@ -517,7 +518,8 @@ struct dcn_optc_registers {
        type OTG_CRC_DSC_MODE;\
        type OTG_CRC_DATA_STREAM_COMBINE_MODE;\
        type OTG_CRC_DATA_STREAM_SPLIT_MODE;\
-       type OTG_CRC_DATA_FORMAT;
+       type OTG_CRC_DATA_FORMAT;\
+       type OTG_V_TOTAL_LAST_USED_BY_DRR;
 
 
 struct dcn_optc_shift {

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c
index 3139d90..7fa9fc6 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c
@@ -520,6 +520,14 @@ bool optc2_configure_crc(struct timing_generator *optc,
        return optc1_configure_crc(optc, params);
 }
 
+
+void optc2_get_last_used_drr_vtotal(struct timing_generator *optc, uint32_t *refresh_rate)
+{
+       struct optc *optc1 = DCN10TG_FROM_TG(optc);
+
+       REG_GET(OTG_DRR_CONTROL, OTG_V_TOTAL_LAST_USED_BY_DRR, refresh_rate);
+}
+
 static struct timing_generator_funcs dcn20_tg_funcs = {
                .validate_timing = optc1_validate_timing,
                .program_timing = optc1_program_timing,
@@ -553,6 +561,7 @@ static struct timing_generator_funcs dcn20_tg_funcs = {
                .lock_doublebuffer_disable = optc2_lock_doublebuffer_disable,
                .enable_optc_clock = optc1_enable_optc_clock,
                .set_drr = optc1_set_drr,
+               .get_last_used_drr_vtotal = optc2_get_last_used_drr_vtotal,
                .set_static_screen_control = optc1_set_static_screen_control,
                .program_stereo = optc1_program_stereo,
                .is_stereo_left_eye = optc1_is_stereo_left_eye,
@@ -591,4 +600,3 @@ void dcn20_timing_generator_init(struct optc *optc1)
        optc1->min_h_sync_width = 4;//  Minimum HSYNC = 8 pixels asked By HW in the first place for no actual reason. Oculus Rift S will not light up with 8 as it's hsyncWidth is 6. Changing it to 4 to fix that issue.
        optc1->min_v_sync_width = 1;
 }
-

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.h b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.h
index 3dee2ec..be19a68 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.h
@@ -42,7 +42,8 @@
        SRI(OPTC_WIDTH_CONTROL, ODM, inst),\
        SRI(OPTC_MEMORY_CONFIG, ODM, inst),\
        SR(DWB_SOURCE_SELECT),\
-       SRI(OTG_MANUAL_FLOW_CONTROL, OTG, inst)
+       SRI(OTG_MANUAL_FLOW_CONTROL, OTG, inst), \
+       SRI(OTG_DRR_CONTROL, OTG, inst)
 
 #define TG_COMMON_MASK_SH_LIST_DCN2_0(mask_sh)\
        TG_COMMON_MASK_SH_LIST_DCN(mask_sh),\
@@ -75,10 +76,14 @@
        SF(ODM0_OPTC_WIDTH_CONTROL, OPTC_SEGMENT_WIDTH, mask_sh),\
        SF(DWB_SOURCE_SELECT, OPTC_DWB0_SOURCE_SELECT, mask_sh),\
        SF(DWB_SOURCE_SELECT, OPTC_DWB1_SOURCE_SELECT, mask_sh),\
-       SF(OTG0_OTG_MANUAL_FLOW_CONTROL, MANUAL_FLOW_CONTROL, mask_sh)
+       SF(OTG0_OTG_MANUAL_FLOW_CONTROL, MANUAL_FLOW_CONTROL, mask_sh), \
+       SF(OTG0_OTG_DRR_CONTROL, OTG_V_TOTAL_LAST_USED_BY_DRR, mask_sh)
 
 void dcn20_timing_generator_init(struct optc *optc);
 
+void optc2_get_last_used_drr_vtotal(struct timing_generator *optc,
+               uint32_t *refresh_rate);
+
 bool optc2_enable_crtc(struct timing_generator *optc);
 
 void optc2_set_gsl(struct timing_generator *optc,

diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c
index ac478bd..f37e825 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c
@@ -315,6 +315,7 @@ static struct timing_generator_funcs dcn30_tg_funcs = {
                .lock_doublebuffer_disable = optc3_lock_doublebuffer_disable,
                .enable_optc_clock = optc1_enable_optc_clock,
                .set_drr = optc1_set_drr,
+               .get_last_used_drr_vtotal = optc2_get_last_used_drr_vtotal,
                .set_static_screen_control = optc1_set_static_screen_control,
                .program_stereo = optc1_program_stereo,
                .is_stereo_left_eye = optc1_is_stereo_left_eye,

diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.h b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.h
index 3796168..736e63b 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.h
@@ -87,7 +87,8 @@
        SRI(OTG_CRC0_WINDOWB_X_CONTROL, OTG, inst),\
        SRI(OTG_CRC0_WINDOWB_Y_CONTROL, OTG, inst),\
        SR(GSL_SOURCE_SELECT),\
-       SRI(OTG_TRIGA_MANUAL_TRIG, OTG, inst)
+       SRI(OTG_TRIGA_MANUAL_TRIG, OTG, inst),\
+       SRI(OTG_DRR_CONTROL, OTG, inst)
 
 
 #define OPTC_COMMON_REG_LIST_DCN3_0(inst) \
@@ -233,7 +234,8 @@
        SF(GSL_SOURCE_SELECT, GSL0_READY_SOURCE_SEL, mask_sh),\
        SF(GSL_SOURCE_SELECT, GSL1_READY_SOURCE_SEL, mask_sh),\
        SF(GSL_SOURCE_SELECT, GSL2_READY_SOURCE_SEL, mask_sh),\
-       SF(OTG0_OTG_GLOBAL_CONTROL2, MANUAL_FLOW_CONTROL_SEL, mask_sh)
+       SF(OTG0_OTG_GLOBAL_CONTROL2, MANUAL_FLOW_CONTROL_SEL, mask_sh),\
+       SF(OTG0_OTG_DRR_CONTROL, OTG_V_TOTAL_LAST_USED_BY_DRR, mask_sh)
 
 #define OPTC_COMMON_MASK_SH_LIST_DCN3_0(mask_sh)\
        OPTC_COMMON_MASK_SH_LIST_DCN3_BASE(mask_sh),\

diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h b/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h
index a77eb9c..8f06e27 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h
@@ -227,6 +227,7 @@ struct timing_generator_funcs {
                                        bool enable, const struct dc_crtc_timing *timing);
        void (*set_drr)(struct timing_generator *tg, const struct drr_params *params);
        void (*set_vtotal_min_max)(struct timing_generator *optc, int vtotal_min, int vtotal_max);
+       void (*get_last_used_drr_vtotal)(struct timing_generator *optc, uint32_t *refresh_rate);
        void (*set_static_screen_control)(struct timing_generator *tg,
                                                uint32_t event_triggers,
                                                uint32_t num_frames);