diff options
author | Harry Wentland <harry.wentland@amd.com> | 2019-02-22 15:54:43 -0500 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2019-06-21 18:59:35 -0500 |
commit | 345429a67c48e1e9f7f95a406285be2b1bd09886 (patch) | |
tree | 2cdc7a60ead21210aa32ea7acacc8f3f3a891ae8 /drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dwb.c | |
parent | fa0d2c989c94579ab143199a07849697afb1b4a8 (diff) | |
download | linux-stable-345429a67c48e1e9f7f95a406285be2b1bd09886.tar.gz linux-stable-345429a67c48e1e9f7f95a406285be2b1bd09886.tar.bz2 linux-stable-345429a67c48e1e9f7f95a406285be2b1bd09886.zip |
drm/amd/display: Add DCN2 DWB
Add support to program the DCN2 DWB (Display Writeback)
HW Blocks:
+--------++------+ +----------+
| HUBBUB || HUBP | <-- | MMHUBBUB |
+--------++------+ +----------+
| ^
v |
+--------+ +--------+
| DPP | | DWB |
+--------+ +--------+
|
v ^
+--------+ |
| MPC | |
+--------+ |
| |
v |
+-------+ |
| OPP | |
+-------+ |
| |
v |
+--------+ /
| OPTC | --------------
+--------+
|
v
+--------+ +--------+
| DIO | | DCCG |
+--------+ +--------+
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dwb.c')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dwb.c | 315 |
1 files changed, 315 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dwb.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dwb.c new file mode 100644 index 000000000000..14bdb63950af --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dwb.c @@ -0,0 +1,315 @@ +/* + * Copyright 2012-17 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: AMD + * + */ + + +#include "reg_helper.h" +#include "resource.h" +#include "dwb.h" +#include "dcn20_dwb.h" + + +#define REG(reg)\ + dwbc20->dwbc_regs->reg + +#define CTX \ + dwbc20->base.ctx + +#undef FN +#define FN(reg_name, field_name) \ + dwbc20->dwbc_shift->field_name, dwbc20->dwbc_mask->field_name + +enum dwb_outside_pix_strategy { + DWB_OUTSIDE_PIX_STRATEGY_BLACK = 0, + DWB_OUTSIDE_PIX_STRATEGY_EDGE = 1 +}; + +static bool dwb2_get_caps(struct dwbc *dwbc, struct dwb_caps *caps) +{ + if (caps) { + caps->adapter_id = 0; /* we only support 1 adapter currently */ + caps->hw_version = DCN_VERSION_2_0; + caps->num_pipes = 1; + memset(&caps->reserved, 0, sizeof(caps->reserved)); + memset(&caps->reserved2, 0, sizeof(caps->reserved2)); + caps->sw_version = dwb_ver_1_0; + caps->caps.support_dwb = true; + caps->caps.support_ogam = false; + caps->caps.support_wbscl = false; + caps->caps.support_ocsc = false; + return true; + } else { + return false; + } +} + +void dwb2_config_dwb_cnv(struct dwbc *dwbc, struct dc_dwb_params *params) +{ + struct dcn20_dwbc *dwbc20 = TO_DCN20_DWBC(dwbc); + + /* Set DWB source size */ + REG_UPDATE_2(CNV_SOURCE_SIZE, CNV_SOURCE_WIDTH, params->cnv_params.src_width, + CNV_SOURCE_HEIGHT, params->cnv_params.src_height); + + /* source size is not equal the source size, then enable cropping. */ + if (params->cnv_params.crop_en) { + REG_UPDATE(CNV_MODE, CNV_WINDOW_CROP_EN, 1); + REG_UPDATE(CNV_WINDOW_START, CNV_WINDOW_START_X, params->cnv_params.crop_x); + REG_UPDATE(CNV_WINDOW_START, CNV_WINDOW_START_Y, params->cnv_params.crop_y); + REG_UPDATE(CNV_WINDOW_SIZE, CNV_WINDOW_WIDTH, params->cnv_params.crop_width); + REG_UPDATE(CNV_WINDOW_SIZE, CNV_WINDOW_HEIGHT, params->cnv_params.crop_height); + } else { + REG_UPDATE(CNV_MODE, CNV_WINDOW_CROP_EN, 0); + } + + /* Set CAPTURE_RATE */ + REG_UPDATE(CNV_MODE, CNV_FRAME_CAPTURE_RATE, params->capture_rate); + + /* Set CNV output pixel depth */ + REG_UPDATE(CNV_MODE, CNV_OUT_BPC, params->cnv_params.cnv_out_bpc); +} + +static bool dwb2_enable(struct dwbc *dwbc, struct dc_dwb_params *params) +{ + struct dcn20_dwbc *dwbc20 = TO_DCN20_DWBC(dwbc); + + /* Only chroma scaling (sub-sampling) is supported in DCN2 */ + if ((params->cnv_params.src_width != params->dest_width) + || (params->cnv_params.src_height != params->dest_height)) { + return false; + } + + /* disable power gating */ + //REG_UPDATE_5(WB_EC_CONFIG, DISPCLK_R_WB_GATE_DIS, 1, + // DISPCLK_G_WB_GATE_DIS, 1, DISPCLK_G_WBSCL_GATE_DIS, 1, + // WB_LB_LS_DIS, 1, WB_LUT_LS_DIS, 1); + + /* Set WB_ENABLE (not double buffered; capture not enabled) */ + REG_UPDATE(WB_ENABLE, WB_ENABLE, 1); + + /* Set CNV parameters */ + dwb2_config_dwb_cnv(dwbc, params); + + /* Set scaling parameters */ + dwb2_set_scaler(dwbc, params); + + /* Enable DWB capture enable (double buffered) */ + REG_UPDATE(CNV_MODE, CNV_FRAME_CAPTURE_EN, DWB_FRAME_CAPTURE_ENABLE); + + // disable warmup + REG_UPDATE(WB_WARM_UP_MODE_CTL1, GMC_WARM_UP_ENABLE, 0); + + return true; +} + +bool dwb2_disable(struct dwbc *dwbc) +{ + struct dcn20_dwbc *dwbc20 = TO_DCN20_DWBC(dwbc); + + /* disable CNV */ + REG_UPDATE(CNV_MODE, CNV_FRAME_CAPTURE_EN, DWB_FRAME_CAPTURE_DISABLE); + + /* disable WB */ + REG_UPDATE(WB_ENABLE, WB_ENABLE, 0); + + /* soft reset */ + REG_UPDATE(WB_SOFT_RESET, WB_SOFT_RESET, 1); + REG_UPDATE(WB_SOFT_RESET, WB_SOFT_RESET, 0); + + /* enable power gating */ + //REG_UPDATE_5(WB_EC_CONFIG, DISPCLK_R_WB_GATE_DIS, 0, + // DISPCLK_G_WB_GATE_DIS, 0, DISPCLK_G_WBSCL_GATE_DIS, 0, + // WB_LB_LS_DIS, 0, WB_LUT_LS_DIS, 0); + + return true; +} + +static bool dwb2_update(struct dwbc *dwbc, struct dc_dwb_params *params) +{ + struct dcn20_dwbc *dwbc20 = TO_DCN20_DWBC(dwbc); + unsigned int pre_locked; + + /* Only chroma scaling (sub-sampling) is supported in DCN2 */ + if ((params->cnv_params.src_width != params->dest_width) + || (params->cnv_params.src_height != params->dest_height)) { + return false; + } + + /* + * Check if the caller has already locked CNV registers. + * If so: assume the caller will unlock, so don't touch the lock. + * If not: lock them for this update, then unlock after the + * update is complete. + */ + REG_GET(CNV_UPDATE, CNV_UPDATE_LOCK, &pre_locked); + + if (pre_locked == 0) { + /* Lock DWB registers */ + REG_UPDATE(CNV_UPDATE, CNV_UPDATE_LOCK, 1); + } + + /* Set CNV parameters */ + dwb2_config_dwb_cnv(dwbc, params); + + /* Set scaling parameters */ + dwb2_set_scaler(dwbc, params); + + if (pre_locked == 0) { + /* Unlock DWB registers */ + REG_UPDATE(CNV_UPDATE, CNV_UPDATE_LOCK, 0); + } + + return true; +} + +bool dwb2_is_enabled(struct dwbc *dwbc) +{ + struct dcn20_dwbc *dwbc20 = TO_DCN20_DWBC(dwbc); + unsigned int wb_enabled = 0; + unsigned int cnv_frame_capture_en = 0; + + REG_GET(WB_ENABLE, WB_ENABLE, &wb_enabled); + REG_GET(CNV_MODE, CNV_FRAME_CAPTURE_EN, &cnv_frame_capture_en); + + return ((wb_enabled != 0) && (cnv_frame_capture_en != 0)); +} + +void dwb2_set_stereo(struct dwbc *dwbc, + struct dwb_stereo_params *stereo_params) +{ + struct dcn20_dwbc *dwbc20 = TO_DCN20_DWBC(dwbc); + + if (stereo_params->stereo_enabled) { + REG_UPDATE(CNV_MODE, CNV_STEREO_TYPE, stereo_params->stereo_type); + REG_UPDATE(CNV_MODE, CNV_EYE_SELECTION, stereo_params->stereo_eye_select); + REG_UPDATE(CNV_MODE, CNV_STEREO_POLARITY, stereo_params->stereo_polarity); + } else { + REG_UPDATE(CNV_MODE, CNV_EYE_SELECTION, 0); + } +} + +void dwb2_set_new_content(struct dwbc *dwbc, + bool is_new_content) +{ + struct dcn20_dwbc *dwbc20 = TO_DCN20_DWBC(dwbc); + + REG_UPDATE(CNV_MODE, CNV_NEW_CONTENT, is_new_content); +} + +static void dwb2_set_warmup(struct dwbc *dwbc, + struct dwb_warmup_params *warmup_params) +{ + struct dcn20_dwbc *dwbc20 = TO_DCN20_DWBC(dwbc); + + REG_UPDATE(WB_WARM_UP_MODE_CTL1, GMC_WARM_UP_ENABLE, warmup_params->warmup_en); + REG_UPDATE(WB_WARM_UP_MODE_CTL1, WIDTH_WARMUP, warmup_params->warmup_width); + REG_UPDATE(WB_WARM_UP_MODE_CTL1, HEIGHT_WARMUP, warmup_params->warmup_height); + + REG_UPDATE(WB_WARM_UP_MODE_CTL2, DATA_VALUE_WARMUP, warmup_params->warmup_data); + REG_UPDATE(WB_WARM_UP_MODE_CTL2, MODE_WARMUP, warmup_params->warmup_mode); + REG_UPDATE(WB_WARM_UP_MODE_CTL2, DATA_DEPTH_WARMUP, warmup_params->warmup_depth); +} + +void dwb2_set_scaler(struct dwbc *dwbc, struct dc_dwb_params *params) +{ + struct dcn20_dwbc *dwbc20 = TO_DCN20_DWBC(dwbc); + + /* Program scaling mode */ + REG_UPDATE_2(WBSCL_MODE, WBSCL_MODE, params->out_format, + WBSCL_OUT_BIT_DEPTH, params->output_depth); + + if (params->out_format != dwb_scaler_mode_bypass444) { + /* Program output size */ + REG_UPDATE(WBSCL_DEST_SIZE, WBSCL_DEST_WIDTH, params->dest_width); + REG_UPDATE(WBSCL_DEST_SIZE, WBSCL_DEST_HEIGHT, params->dest_height); + + /* Program round offsets */ + REG_UPDATE(WBSCL_ROUND_OFFSET, WBSCL_ROUND_OFFSET_Y_RGB, 0x40); + REG_UPDATE(WBSCL_ROUND_OFFSET, WBSCL_ROUND_OFFSET_CBCR, 0x200); + + /* Program clamp values */ + REG_UPDATE(WBSCL_CLAMP_Y_RGB, WBSCL_CLAMP_UPPER_Y_RGB, 0x3fe); + REG_UPDATE(WBSCL_CLAMP_Y_RGB, WBSCL_CLAMP_LOWER_Y_RGB, 0x1); + REG_UPDATE(WBSCL_CLAMP_CBCR, WBSCL_CLAMP_UPPER_CBCR, 0x3fe); + REG_UPDATE(WBSCL_CLAMP_CBCR, WBSCL_CLAMP_LOWER_CBCR, 0x1); + + /* Program outside pixel strategy to use edge pixels */ + REG_UPDATE(WBSCL_OUTSIDE_PIX_STRATEGY, WBSCL_OUTSIDE_PIX_STRATEGY, DWB_OUTSIDE_PIX_STRATEGY_EDGE); + + if (params->cnv_params.crop_en) { + /* horizontal scale */ + dwb_program_horz_scalar(dwbc20, params->cnv_params.crop_width, + params->dest_width, + params->scaler_taps); + + /* vertical scale */ + dwb_program_vert_scalar(dwbc20, params->cnv_params.crop_height, + params->dest_height, + params->scaler_taps, + params->subsample_position); + } else { + /* horizontal scale */ + dwb_program_horz_scalar(dwbc20, params->cnv_params.src_width, + params->dest_width, + params->scaler_taps); + + /* vertical scale */ + dwb_program_vert_scalar(dwbc20, params->cnv_params.src_height, + params->dest_height, + params->scaler_taps, + params->subsample_position); + } + } + +} + +const struct dwbc_funcs dcn20_dwbc_funcs = { + .get_caps = dwb2_get_caps, + .enable = dwb2_enable, + .disable = dwb2_disable, + .update = dwb2_update, + .is_enabled = dwb2_is_enabled, + .set_stereo = dwb2_set_stereo, + .set_new_content = dwb2_set_new_content, + .set_warmup = dwb2_set_warmup, + .dwb_set_scaler = dwb2_set_scaler, +}; + +void dcn20_dwbc_construct(struct dcn20_dwbc *dwbc20, + struct dc_context *ctx, + const struct dcn20_dwbc_registers *dwbc_regs, + const struct dcn20_dwbc_shift *dwbc_shift, + const struct dcn20_dwbc_mask *dwbc_mask, + int inst) +{ + dwbc20->base.ctx = ctx; + + dwbc20->base.inst = inst; + dwbc20->base.funcs = &dcn20_dwbc_funcs; + + dwbc20->dwbc_regs = dwbc_regs; + dwbc20->dwbc_shift = dwbc_shift; + dwbc20->dwbc_mask = dwbc_mask; +} + |