From 1b55edc08e16d146f22ad95deecb2063c60d967f Mon Sep 17 00:00:00 2001 From: David Francis Date: Tue, 26 Jun 2018 14:58:15 -0400 Subject: [PATCH 4935/5725] drm/amd/display: Add CRC support for DCN [Why] Regamma/CTM tests require CRC support [How] The CRC registers that were used in DCE exist under different names in DCN. The code was copied from DCE (in dc/dce110/dce110_timing_generator.c) into DCN, and changed to use the DCN register access helper functions. Signed-off-by: David Francis Reviewed-by: Charlene Liu Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c | 68 +++++++++++++++++++++++ drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h | 49 +++++++++++++++- 2 files changed, 114 insertions(+), 3 deletions(-) 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 e6a3ade..411f892 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c @@ -1324,6 +1324,72 @@ bool optc1_is_optc_underflow_occurred(struct timing_generator *optc) return (underflow_occurred == 1); } +bool optc1_configure_crc(struct timing_generator *optc, + const struct crc_params *params) +{ + struct optc *optc1 = DCN10TG_FROM_TG(optc); + + /* Cannot configure crc on a CRTC that is disabled */ + if (!optc1_is_tg_enabled(optc)) + return false; + + REG_WRITE(OTG_CRC_CNTL, 0); + + if (!params->enable) + return true; + + /* Program frame boundaries */ + /* Window A x axis start and end. */ + REG_UPDATE_2(OTG_CRC0_WINDOWA_X_CONTROL, + OTG_CRC0_WINDOWA_X_START, params->windowa_x_start, + OTG_CRC0_WINDOWA_X_END, params->windowa_x_end); + + /* Window A y axis start and end. */ + REG_UPDATE_2(OTG_CRC0_WINDOWA_Y_CONTROL, + OTG_CRC0_WINDOWA_Y_START, params->windowa_y_start, + OTG_CRC0_WINDOWA_Y_END, params->windowa_y_end); + + /* Window B x axis start and end. */ + REG_UPDATE_2(OTG_CRC0_WINDOWB_X_CONTROL, + OTG_CRC0_WINDOWB_X_START, params->windowb_x_start, + OTG_CRC0_WINDOWB_X_END, params->windowb_x_end); + + /* Window B y axis start and end. */ + REG_UPDATE_2(OTG_CRC0_WINDOWB_Y_CONTROL, + OTG_CRC0_WINDOWB_Y_START, params->windowb_y_start, + OTG_CRC0_WINDOWB_Y_END, params->windowb_y_end); + + /* Set crc mode and selection, and enable. Only using CRC0*/ + REG_UPDATE_3(OTG_CRC_CNTL, + OTG_CRC_CONT_EN, params->continuous_mode ? 1 : 0, + OTG_CRC0_SELECT, params->selection, + OTG_CRC_EN, 1); + + return true; +} + +bool optc1_get_crc(struct timing_generator *optc, + uint32_t *r_cr, uint32_t *g_y, uint32_t *b_cb) +{ + uint32_t field = 0; + struct optc *optc1 = DCN10TG_FROM_TG(optc); + + REG_GET(OTG_CRC_CNTL, OTG_CRC_EN, &field); + + /* Early return if CRC is not enabled for this CRTC */ + if (!field) + return false; + + REG_GET_2(OTG_CRC0_DATA_RG, + CRC0_R_CR, r_cr, + CRC0_G_Y, g_y); + + REG_GET(OTG_CRC0_DATA_B, + CRC0_B_CB, b_cb); + + return true; +} + static const struct timing_generator_funcs dcn10_tg_funcs = { .validate_timing = optc1_validate_timing, .program_timing = optc1_program_timing, @@ -1360,6 +1426,8 @@ static const struct timing_generator_funcs dcn10_tg_funcs = { .is_tg_enabled = optc1_is_tg_enabled, .is_optc_underflow_occurred = optc1_is_optc_underflow_occurred, .clear_optc_underflow = optc1_clear_optc_underflow, + .get_crc = optc1_get_crc, + .configure_crc = optc1_configure_crc, }; void dcn10_timing_generator_init(struct optc *optc1) 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 59ed272..1df510f 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h @@ -75,7 +75,14 @@ SRI(CONTROL, VTG, inst),\ SRI(OTG_VERT_SYNC_CONTROL, OTG, inst),\ SRI(OTG_MASTER_UPDATE_MODE, OTG, inst),\ - SRI(OTG_GSL_CONTROL, OTG, inst) + SRI(OTG_GSL_CONTROL, OTG, inst),\ + SRI(OTG_CRC_CNTL, OTG, inst),\ + SRI(OTG_CRC0_DATA_RG, OTG, inst),\ + SRI(OTG_CRC0_DATA_B, OTG, inst),\ + SRI(OTG_CRC0_WINDOWA_X_CONTROL, OTG, inst),\ + SRI(OTG_CRC0_WINDOWA_Y_CONTROL, OTG, inst),\ + SRI(OTG_CRC0_WINDOWB_X_CONTROL, OTG, inst),\ + SRI(OTG_CRC0_WINDOWB_Y_CONTROL, OTG, inst) #define TG_COMMON_REG_LIST_DCN1_0(inst) \ TG_COMMON_REG_LIST_DCN(inst),\ @@ -138,6 +145,13 @@ struct dcn_optc_registers { uint32_t OTG_GSL_WINDOW_X; uint32_t OTG_GSL_WINDOW_Y; uint32_t OTG_VUPDATE_KEEPOUT; + uint32_t OTG_CRC_CNTL; + uint32_t OTG_CRC0_DATA_RG; + uint32_t OTG_CRC0_DATA_B; + uint32_t OTG_CRC0_WINDOWA_X_CONTROL; + uint32_t OTG_CRC0_WINDOWA_Y_CONTROL; + uint32_t OTG_CRC0_WINDOWB_X_CONTROL; + uint32_t OTG_CRC0_WINDOWB_Y_CONTROL; }; #define TG_COMMON_MASK_SH_LIST_DCN(mask_sh)\ @@ -232,7 +246,21 @@ struct dcn_optc_registers { SF(OTG0_OTG_GSL_CONTROL, OTG_GSL2_EN, mask_sh),\ SF(OTG0_OTG_GSL_CONTROL, OTG_GSL_MASTER_EN, mask_sh),\ SF(OTG0_OTG_GSL_CONTROL, OTG_GSL_FORCE_DELAY, mask_sh),\ - SF(OTG0_OTG_GSL_CONTROL, OTG_GSL_CHECK_ALL_FIELDS, mask_sh) + SF(OTG0_OTG_GSL_CONTROL, OTG_GSL_CHECK_ALL_FIELDS, mask_sh),\ + SF(OTG0_OTG_CRC_CNTL, OTG_CRC_CONT_EN, mask_sh),\ + SF(OTG0_OTG_CRC_CNTL, OTG_CRC0_SELECT, mask_sh),\ + SF(OTG0_OTG_CRC_CNTL, OTG_CRC_EN, mask_sh),\ + SF(OTG0_OTG_CRC0_DATA_RG, CRC0_R_CR, mask_sh),\ + SF(OTG0_OTG_CRC0_DATA_RG, CRC0_G_Y, mask_sh),\ + SF(OTG0_OTG_CRC0_DATA_B, CRC0_B_CB, mask_sh),\ + SF(OTG0_OTG_CRC0_WINDOWA_X_CONTROL, OTG_CRC0_WINDOWA_X_START, mask_sh),\ + SF(OTG0_OTG_CRC0_WINDOWA_X_CONTROL, OTG_CRC0_WINDOWA_X_END, mask_sh),\ + SF(OTG0_OTG_CRC0_WINDOWA_Y_CONTROL, OTG_CRC0_WINDOWA_Y_START, mask_sh),\ + SF(OTG0_OTG_CRC0_WINDOWA_Y_CONTROL, OTG_CRC0_WINDOWA_Y_END, mask_sh),\ + SF(OTG0_OTG_CRC0_WINDOWB_X_CONTROL, OTG_CRC0_WINDOWB_X_START, mask_sh),\ + SF(OTG0_OTG_CRC0_WINDOWB_X_CONTROL, OTG_CRC0_WINDOWB_X_END, mask_sh),\ + SF(OTG0_OTG_CRC0_WINDOWB_Y_CONTROL, OTG_CRC0_WINDOWB_Y_START, mask_sh),\ + SF(OTG0_OTG_CRC0_WINDOWB_Y_CONTROL, OTG_CRC0_WINDOWB_Y_END, mask_sh) #define TG_COMMON_MASK_SH_LIST_DCN1_0(mask_sh)\ @@ -363,7 +391,22 @@ struct dcn_optc_registers { type OTG_MASTER_UPDATE_LOCK_GSL_EN;\ type MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_START_OFFSET;\ type MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_END_OFFSET;\ - type OTG_MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_EN; + type OTG_MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_EN;\ + type OTG_CRC_CONT_EN;\ + type OTG_CRC0_SELECT;\ + type OTG_CRC_EN;\ + type CRC0_R_CR;\ + type CRC0_G_Y;\ + type CRC0_B_CB;\ + type OTG_CRC0_WINDOWA_X_START;\ + type OTG_CRC0_WINDOWA_X_END;\ + type OTG_CRC0_WINDOWA_Y_START;\ + type OTG_CRC0_WINDOWA_Y_END;\ + type OTG_CRC0_WINDOWB_X_START;\ + type OTG_CRC0_WINDOWB_X_END;\ + type OTG_CRC0_WINDOWB_Y_START;\ + type OTG_CRC0_WINDOWB_Y_END; + #define TG_REG_FIELD_LIST(type) \ TG_REG_FIELD_LIST_DCN1_0(type) -- 2.7.4