diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn31/dcn31_dccg.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn31/dcn31_dccg.c | 755 |
1 files changed, 755 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_dccg.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_dccg.c new file mode 100644 index 0000000000..8664f0c4c9 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_dccg.c @@ -0,0 +1,755 @@ +/* + * Copyright 2018 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 "core_types.h" +#include "dcn31_dccg.h" +#include "dal_asic_id.h" + +#define TO_DCN_DCCG(dccg)\ + container_of(dccg, struct dcn_dccg, base) + +#define REG(reg) \ + (dccg_dcn->regs->reg) + +#undef FN +#define FN(reg_name, field_name) \ + dccg_dcn->dccg_shift->field_name, dccg_dcn->dccg_mask->field_name + +#define CTX \ + dccg_dcn->base.ctx +#define DC_LOGGER \ + dccg->ctx->logger + +void dccg31_update_dpp_dto(struct dccg *dccg, int dpp_inst, int req_dppclk) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + + if (dccg->dpp_clock_gated[dpp_inst]) { + /* + * Do not update the DPPCLK DTO if the clock is stopped. + * It is treated the same as if the pipe itself were in PG. + */ + return; + } + + if (dccg->ref_dppclk && req_dppclk) { + int ref_dppclk = dccg->ref_dppclk; + int modulo, phase; + + // phase / modulo = dpp pipe clk / dpp global clk + modulo = 0xff; // use FF at the end + phase = ((modulo * req_dppclk) + ref_dppclk - 1) / ref_dppclk; + + if (phase > 0xff) { + ASSERT(false); + phase = 0xff; + } + + REG_SET_2(DPPCLK_DTO_PARAM[dpp_inst], 0, + DPPCLK0_DTO_PHASE, phase, + DPPCLK0_DTO_MODULO, modulo); + REG_UPDATE(DPPCLK_DTO_CTRL, + DPPCLK_DTO_ENABLE[dpp_inst], 1); + } else { + REG_UPDATE(DPPCLK_DTO_CTRL, + DPPCLK_DTO_ENABLE[dpp_inst], 0); + } + dccg->pipe_dppclk_khz[dpp_inst] = req_dppclk; +} + +static enum phyd32clk_clock_source get_phy_mux_symclk( + struct dcn_dccg *dccg_dcn, + enum phyd32clk_clock_source src) +{ + if (dccg_dcn->base.ctx->asic_id.chip_family == FAMILY_YELLOW_CARP && + dccg_dcn->base.ctx->asic_id.hw_internal_rev == YELLOW_CARP_B0) { + if (src == PHYD32CLKC) + src = PHYD32CLKF; + if (src == PHYD32CLKD) + src = PHYD32CLKG; + } + return src; +} + +static void dccg31_enable_dpstreamclk(struct dccg *dccg, int otg_inst) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + + /* enabled to select one of the DTBCLKs for pipe */ + switch (otg_inst) { + case 0: + REG_UPDATE(DPSTREAMCLK_CNTL, + DPSTREAMCLK_PIPE0_EN, 1); + break; + case 1: + REG_UPDATE(DPSTREAMCLK_CNTL, + DPSTREAMCLK_PIPE1_EN, 1); + break; + case 2: + REG_UPDATE(DPSTREAMCLK_CNTL, + DPSTREAMCLK_PIPE2_EN, 1); + break; + case 3: + REG_UPDATE(DPSTREAMCLK_CNTL, + DPSTREAMCLK_PIPE3_EN, 1); + break; + default: + BREAK_TO_DEBUGGER(); + return; + } + if (dccg->ctx->dc->debug.root_clock_optimization.bits.dpstream) + REG_UPDATE_2(DCCG_GATE_DISABLE_CNTL3, + DPSTREAMCLK_GATE_DISABLE, 1, + DPSTREAMCLK_ROOT_GATE_DISABLE, 1); +} + +static void dccg31_disable_dpstreamclk(struct dccg *dccg, int otg_inst) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + + if (dccg->ctx->dc->debug.root_clock_optimization.bits.dpstream) + REG_UPDATE_2(DCCG_GATE_DISABLE_CNTL3, + DPSTREAMCLK_ROOT_GATE_DISABLE, 0, + DPSTREAMCLK_GATE_DISABLE, 0); + + switch (otg_inst) { + case 0: + REG_UPDATE(DPSTREAMCLK_CNTL, + DPSTREAMCLK_PIPE0_EN, 0); + break; + case 1: + REG_UPDATE(DPSTREAMCLK_CNTL, + DPSTREAMCLK_PIPE1_EN, 0); + break; + case 2: + REG_UPDATE(DPSTREAMCLK_CNTL, + DPSTREAMCLK_PIPE2_EN, 0); + break; + case 3: + REG_UPDATE(DPSTREAMCLK_CNTL, + DPSTREAMCLK_PIPE3_EN, 0); + break; + default: + BREAK_TO_DEBUGGER(); + return; + } +} + +void dccg31_set_dpstreamclk( + struct dccg *dccg, + enum streamclk_source src, + int otg_inst, + int dp_hpo_inst) +{ + if (src == REFCLK) + dccg31_disable_dpstreamclk(dccg, otg_inst); + else + dccg31_enable_dpstreamclk(dccg, otg_inst); +} + +void dccg31_enable_symclk32_se( + struct dccg *dccg, + int hpo_se_inst, + enum phyd32clk_clock_source phyd32clk) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + + phyd32clk = get_phy_mux_symclk(dccg_dcn, phyd32clk); + + /* select one of the PHYD32CLKs as the source for symclk32_se */ + switch (hpo_se_inst) { + case 0: + if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se) + REG_UPDATE_2(DCCG_GATE_DISABLE_CNTL3, + SYMCLK32_SE0_GATE_DISABLE, 1, + SYMCLK32_ROOT_SE0_GATE_DISABLE, 1); + REG_UPDATE_2(SYMCLK32_SE_CNTL, + SYMCLK32_SE0_SRC_SEL, phyd32clk, + SYMCLK32_SE0_EN, 1); + break; + case 1: + if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se) + REG_UPDATE_2(DCCG_GATE_DISABLE_CNTL3, + SYMCLK32_SE1_GATE_DISABLE, 1, + SYMCLK32_ROOT_SE1_GATE_DISABLE, 1); + REG_UPDATE_2(SYMCLK32_SE_CNTL, + SYMCLK32_SE1_SRC_SEL, phyd32clk, + SYMCLK32_SE1_EN, 1); + break; + case 2: + if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se) + REG_UPDATE_2(DCCG_GATE_DISABLE_CNTL3, + SYMCLK32_SE2_GATE_DISABLE, 1, + SYMCLK32_ROOT_SE2_GATE_DISABLE, 1); + REG_UPDATE_2(SYMCLK32_SE_CNTL, + SYMCLK32_SE2_SRC_SEL, phyd32clk, + SYMCLK32_SE2_EN, 1); + break; + case 3: + if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se) + REG_UPDATE_2(DCCG_GATE_DISABLE_CNTL3, + SYMCLK32_SE3_GATE_DISABLE, 1, + SYMCLK32_ROOT_SE3_GATE_DISABLE, 1); + REG_UPDATE_2(SYMCLK32_SE_CNTL, + SYMCLK32_SE3_SRC_SEL, phyd32clk, + SYMCLK32_SE3_EN, 1); + break; + default: + BREAK_TO_DEBUGGER(); + return; + } +} + +void dccg31_disable_symclk32_se( + struct dccg *dccg, + int hpo_se_inst) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + + /* set refclk as the source for symclk32_se */ + switch (hpo_se_inst) { + case 0: + REG_UPDATE_2(SYMCLK32_SE_CNTL, + SYMCLK32_SE0_SRC_SEL, 0, + SYMCLK32_SE0_EN, 0); + if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se) + REG_UPDATE_2(DCCG_GATE_DISABLE_CNTL3, + SYMCLK32_SE0_GATE_DISABLE, 0, + SYMCLK32_ROOT_SE0_GATE_DISABLE, 0); + break; + case 1: + REG_UPDATE_2(SYMCLK32_SE_CNTL, + SYMCLK32_SE1_SRC_SEL, 0, + SYMCLK32_SE1_EN, 0); + if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se) + REG_UPDATE_2(DCCG_GATE_DISABLE_CNTL3, + SYMCLK32_SE1_GATE_DISABLE, 0, + SYMCLK32_ROOT_SE1_GATE_DISABLE, 0); + break; + case 2: + REG_UPDATE_2(SYMCLK32_SE_CNTL, + SYMCLK32_SE2_SRC_SEL, 0, + SYMCLK32_SE2_EN, 0); + if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se) + REG_UPDATE_2(DCCG_GATE_DISABLE_CNTL3, + SYMCLK32_SE2_GATE_DISABLE, 0, + SYMCLK32_ROOT_SE2_GATE_DISABLE, 0); + break; + case 3: + REG_UPDATE_2(SYMCLK32_SE_CNTL, + SYMCLK32_SE3_SRC_SEL, 0, + SYMCLK32_SE3_EN, 0); + if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_se) + REG_UPDATE_2(DCCG_GATE_DISABLE_CNTL3, + SYMCLK32_SE3_GATE_DISABLE, 0, + SYMCLK32_ROOT_SE3_GATE_DISABLE, 0); + break; + default: + BREAK_TO_DEBUGGER(); + return; + } +} + +void dccg31_enable_symclk32_le( + struct dccg *dccg, + int hpo_le_inst, + enum phyd32clk_clock_source phyd32clk) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + + phyd32clk = get_phy_mux_symclk(dccg_dcn, phyd32clk); + + /* select one of the PHYD32CLKs as the source for symclk32_le */ + switch (hpo_le_inst) { + case 0: + REG_UPDATE_2(SYMCLK32_LE_CNTL, + SYMCLK32_LE0_SRC_SEL, phyd32clk, + SYMCLK32_LE0_EN, 1); + break; + case 1: + REG_UPDATE_2(SYMCLK32_LE_CNTL, + SYMCLK32_LE1_SRC_SEL, phyd32clk, + SYMCLK32_LE1_EN, 1); + break; + default: + BREAK_TO_DEBUGGER(); + return; + } +} + +void dccg31_disable_symclk32_le( + struct dccg *dccg, + int hpo_le_inst) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + + /* set refclk as the source for symclk32_le */ + switch (hpo_le_inst) { + case 0: + REG_UPDATE_2(SYMCLK32_LE_CNTL, + SYMCLK32_LE0_SRC_SEL, 0, + SYMCLK32_LE0_EN, 0); + break; + case 1: + REG_UPDATE_2(SYMCLK32_LE_CNTL, + SYMCLK32_LE1_SRC_SEL, 0, + SYMCLK32_LE1_EN, 0); + break; + default: + BREAK_TO_DEBUGGER(); + return; + } +} + +void dccg31_set_symclk32_le_root_clock_gating( + struct dccg *dccg, + int hpo_le_inst, + bool enable) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + + if (!dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_le) + return; + + switch (hpo_le_inst) { + case 0: + REG_UPDATE_2(DCCG_GATE_DISABLE_CNTL3, + SYMCLK32_LE0_GATE_DISABLE, enable ? 1 : 0, + SYMCLK32_ROOT_LE0_GATE_DISABLE, enable ? 1 : 0); + break; + case 1: + REG_UPDATE_2(DCCG_GATE_DISABLE_CNTL3, + SYMCLK32_LE1_GATE_DISABLE, enable ? 1 : 0, + SYMCLK32_ROOT_LE1_GATE_DISABLE, enable ? 1 : 0); + break; + default: + BREAK_TO_DEBUGGER(); + return; + } +} + +void dccg31_disable_dscclk(struct dccg *dccg, int inst) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + + if (!dccg->ctx->dc->debug.root_clock_optimization.bits.dsc) + return; + //DTO must be enabled to generate a 0 Hz clock output + switch (inst) { + case 0: + REG_UPDATE(DSCCLK_DTO_CTRL, + DSCCLK0_DTO_ENABLE, 1); + REG_UPDATE_2(DSCCLK0_DTO_PARAM, + DSCCLK0_DTO_PHASE, 0, + DSCCLK0_DTO_MODULO, 1); + break; + case 1: + REG_UPDATE(DSCCLK_DTO_CTRL, + DSCCLK1_DTO_ENABLE, 1); + REG_UPDATE_2(DSCCLK1_DTO_PARAM, + DSCCLK1_DTO_PHASE, 0, + DSCCLK1_DTO_MODULO, 1); + break; + case 2: + REG_UPDATE(DSCCLK_DTO_CTRL, + DSCCLK2_DTO_ENABLE, 1); + REG_UPDATE_2(DSCCLK2_DTO_PARAM, + DSCCLK2_DTO_PHASE, 0, + DSCCLK2_DTO_MODULO, 1); + break; + case 3: + if (REG(DSCCLK3_DTO_PARAM)) { + REG_UPDATE(DSCCLK_DTO_CTRL, + DSCCLK3_DTO_ENABLE, 1); + REG_UPDATE_2(DSCCLK3_DTO_PARAM, + DSCCLK3_DTO_PHASE, 0, + DSCCLK3_DTO_MODULO, 1); + } + break; + default: + BREAK_TO_DEBUGGER(); + return; + } +} + +void dccg31_enable_dscclk(struct dccg *dccg, int inst) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + + if (!dccg->ctx->dc->debug.root_clock_optimization.bits.dsc) + return; + //Disable DTO + switch (inst) { + case 0: + REG_UPDATE_2(DSCCLK0_DTO_PARAM, + DSCCLK0_DTO_PHASE, 0, + DSCCLK0_DTO_MODULO, 0); + REG_UPDATE(DSCCLK_DTO_CTRL, + DSCCLK0_DTO_ENABLE, 0); + break; + case 1: + REG_UPDATE_2(DSCCLK1_DTO_PARAM, + DSCCLK1_DTO_PHASE, 0, + DSCCLK1_DTO_MODULO, 0); + REG_UPDATE(DSCCLK_DTO_CTRL, + DSCCLK1_DTO_ENABLE, 0); + break; + case 2: + REG_UPDATE_2(DSCCLK2_DTO_PARAM, + DSCCLK2_DTO_PHASE, 0, + DSCCLK2_DTO_MODULO, 0); + REG_UPDATE(DSCCLK_DTO_CTRL, + DSCCLK2_DTO_ENABLE, 0); + break; + case 3: + if (REG(DSCCLK3_DTO_PARAM)) { + REG_UPDATE(DSCCLK_DTO_CTRL, + DSCCLK3_DTO_ENABLE, 0); + REG_UPDATE_2(DSCCLK3_DTO_PARAM, + DSCCLK3_DTO_PHASE, 0, + DSCCLK3_DTO_MODULO, 0); + } + break; + default: + BREAK_TO_DEBUGGER(); + return; + } +} + +void dccg31_set_physymclk( + struct dccg *dccg, + int phy_inst, + enum physymclk_clock_source clk_src, + bool force_enable) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + + /* Force PHYSYMCLK on and Select phyd32clk as the source of clock which is output to PHY through DCIO */ + switch (phy_inst) { + case 0: + if (force_enable) { + REG_UPDATE_2(PHYASYMCLK_CLOCK_CNTL, + PHYASYMCLK_FORCE_EN, 1, + PHYASYMCLK_FORCE_SRC_SEL, clk_src); + if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) + REG_UPDATE(DCCG_GATE_DISABLE_CNTL2, + PHYASYMCLK_GATE_DISABLE, 1); + } else { + REG_UPDATE_2(PHYASYMCLK_CLOCK_CNTL, + PHYASYMCLK_FORCE_EN, 0, + PHYASYMCLK_FORCE_SRC_SEL, 0); + if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) + REG_UPDATE(DCCG_GATE_DISABLE_CNTL2, + PHYASYMCLK_GATE_DISABLE, 0); + } + break; + case 1: + if (force_enable) { + REG_UPDATE_2(PHYBSYMCLK_CLOCK_CNTL, + PHYBSYMCLK_FORCE_EN, 1, + PHYBSYMCLK_FORCE_SRC_SEL, clk_src); + if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) + REG_UPDATE(DCCG_GATE_DISABLE_CNTL2, + PHYBSYMCLK_GATE_DISABLE, 1); + } else { + REG_UPDATE_2(PHYBSYMCLK_CLOCK_CNTL, + PHYBSYMCLK_FORCE_EN, 0, + PHYBSYMCLK_FORCE_SRC_SEL, 0); + if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) + REG_UPDATE(DCCG_GATE_DISABLE_CNTL2, + PHYBSYMCLK_GATE_DISABLE, 0); + } + break; + case 2: + if (force_enable) { + REG_UPDATE_2(PHYCSYMCLK_CLOCK_CNTL, + PHYCSYMCLK_FORCE_EN, 1, + PHYCSYMCLK_FORCE_SRC_SEL, clk_src); + if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) + REG_UPDATE(DCCG_GATE_DISABLE_CNTL2, + PHYCSYMCLK_GATE_DISABLE, 1); + } else { + REG_UPDATE_2(PHYCSYMCLK_CLOCK_CNTL, + PHYCSYMCLK_FORCE_EN, 0, + PHYCSYMCLK_FORCE_SRC_SEL, 0); + if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) + REG_UPDATE(DCCG_GATE_DISABLE_CNTL2, + PHYCSYMCLK_GATE_DISABLE, 0); + } + break; + case 3: + if (force_enable) { + REG_UPDATE_2(PHYDSYMCLK_CLOCK_CNTL, + PHYDSYMCLK_FORCE_EN, 1, + PHYDSYMCLK_FORCE_SRC_SEL, clk_src); + if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) + REG_UPDATE(DCCG_GATE_DISABLE_CNTL2, + PHYDSYMCLK_GATE_DISABLE, 1); + } else { + REG_UPDATE_2(PHYDSYMCLK_CLOCK_CNTL, + PHYDSYMCLK_FORCE_EN, 0, + PHYDSYMCLK_FORCE_SRC_SEL, 0); + if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) + REG_UPDATE(DCCG_GATE_DISABLE_CNTL2, + PHYDSYMCLK_GATE_DISABLE, 0); + } + break; + case 4: + if (force_enable) { + REG_UPDATE_2(PHYESYMCLK_CLOCK_CNTL, + PHYESYMCLK_FORCE_EN, 1, + PHYESYMCLK_FORCE_SRC_SEL, clk_src); + if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) + REG_UPDATE(DCCG_GATE_DISABLE_CNTL2, + PHYESYMCLK_GATE_DISABLE, 1); + } else { + REG_UPDATE_2(PHYESYMCLK_CLOCK_CNTL, + PHYESYMCLK_FORCE_EN, 0, + PHYESYMCLK_FORCE_SRC_SEL, 0); + if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) + REG_UPDATE(DCCG_GATE_DISABLE_CNTL2, + PHYESYMCLK_GATE_DISABLE, 0); + } + break; + default: + BREAK_TO_DEBUGGER(); + return; + } +} + +/* Controls the generation of pixel valid for OTG in (OTG -> HPO case) */ +void dccg31_set_dtbclk_dto( + struct dccg *dccg, + const struct dtbclk_dto_params *params) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + int req_dtbclk_khz = params->pixclk_khz; + uint32_t dtbdto_div; + + /* Mode DTBDTO Rate DTBCLK_DTO<x>_DIV Register + * ODM 4:1 combine pixel rate/4 2 + * ODM 2:1 combine pixel rate/2 4 + * non-DSC 4:2:0 mode pixel rate/2 4 + * DSC native 4:2:0 pixel rate/2 4 + * DSC native 4:2:2 pixel rate/2 4 + * Other modes pixel rate 8 + */ + if (params->num_odm_segments == 4) { + dtbdto_div = 2; + req_dtbclk_khz = params->pixclk_khz / 4; + } else if ((params->num_odm_segments == 2) || + (params->timing->pixel_encoding == PIXEL_ENCODING_YCBCR420) || + (params->timing->flags.DSC && params->timing->pixel_encoding == PIXEL_ENCODING_YCBCR422 + && !params->timing->dsc_cfg.ycbcr422_simple)) { + dtbdto_div = 4; + req_dtbclk_khz = params->pixclk_khz / 2; + } else + dtbdto_div = 8; + + if (params->ref_dtbclk_khz && req_dtbclk_khz) { + uint32_t modulo, phase; + + // phase / modulo = dtbclk / dtbclk ref + modulo = params->ref_dtbclk_khz * 1000; + phase = div_u64((((unsigned long long)modulo * req_dtbclk_khz) + params->ref_dtbclk_khz - 1), + params->ref_dtbclk_khz); + + REG_UPDATE(OTG_PIXEL_RATE_CNTL[params->otg_inst], + DTBCLK_DTO_DIV[params->otg_inst], dtbdto_div); + + REG_WRITE(DTBCLK_DTO_MODULO[params->otg_inst], modulo); + REG_WRITE(DTBCLK_DTO_PHASE[params->otg_inst], phase); + + REG_UPDATE(OTG_PIXEL_RATE_CNTL[params->otg_inst], + DTBCLK_DTO_ENABLE[params->otg_inst], 1); + + REG_WAIT(OTG_PIXEL_RATE_CNTL[params->otg_inst], + DTBCLKDTO_ENABLE_STATUS[params->otg_inst], 1, + 1, 100); + + /* The recommended programming sequence to enable DTBCLK DTO to generate + * valid pixel HPO DPSTREAM ENCODER, specifies that DTO source select should + * be set only after DTO is enabled + */ + REG_UPDATE(OTG_PIXEL_RATE_CNTL[params->otg_inst], + PIPE_DTO_SRC_SEL[params->otg_inst], 1); + } else { + REG_UPDATE_3(OTG_PIXEL_RATE_CNTL[params->otg_inst], + DTBCLK_DTO_ENABLE[params->otg_inst], 0, + PIPE_DTO_SRC_SEL[params->otg_inst], 0, + DTBCLK_DTO_DIV[params->otg_inst], dtbdto_div); + + REG_WRITE(DTBCLK_DTO_MODULO[params->otg_inst], 0); + REG_WRITE(DTBCLK_DTO_PHASE[params->otg_inst], 0); + } +} + +void dccg31_set_audio_dtbclk_dto( + struct dccg *dccg, + const struct dtbclk_dto_params *params) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + + if (params->ref_dtbclk_khz && params->req_audio_dtbclk_khz) { + uint32_t modulo, phase; + + // phase / modulo = dtbclk / dtbclk ref + modulo = params->ref_dtbclk_khz * 1000; + phase = div_u64((((unsigned long long)modulo * params->req_audio_dtbclk_khz) + params->ref_dtbclk_khz - 1), + params->ref_dtbclk_khz); + + + REG_WRITE(DCCG_AUDIO_DTBCLK_DTO_MODULO, modulo); + REG_WRITE(DCCG_AUDIO_DTBCLK_DTO_PHASE, phase); + + //REG_UPDATE(DCCG_AUDIO_DTO_SOURCE, + // DCCG_AUDIO_DTBCLK_DTO_USE_512FBR_DTO, 1); + + REG_UPDATE(DCCG_AUDIO_DTO_SOURCE, + DCCG_AUDIO_DTO_SEL, 4); // 04 - DCCG_AUDIO_DTO_SEL_AUDIO_DTO_DTBCLK + } else { + REG_WRITE(DCCG_AUDIO_DTBCLK_DTO_PHASE, 0); + REG_WRITE(DCCG_AUDIO_DTBCLK_DTO_MODULO, 0); + + REG_UPDATE(DCCG_AUDIO_DTO_SOURCE, + DCCG_AUDIO_DTO_SEL, 3); // 03 - DCCG_AUDIO_DTO_SEL_NO_AUDIO_DTO + } +} + +void dccg31_get_dccg_ref_freq(struct dccg *dccg, + unsigned int xtalin_freq_inKhz, + unsigned int *dccg_ref_freq_inKhz) +{ + /* + * Assume refclk is sourced from xtalin + * expect 24MHz + */ + *dccg_ref_freq_inKhz = xtalin_freq_inKhz; + return; +} + +void dccg31_set_dispclk_change_mode( + struct dccg *dccg, + enum dentist_dispclk_change_mode change_mode) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + + REG_UPDATE(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_CHG_MODE, + change_mode == DISPCLK_CHANGE_MODE_RAMPING ? 2 : 0); +} + +void dccg31_init(struct dccg *dccg) +{ + /* Set HPO stream encoder to use refclk to avoid case where PHY is + * disabled and SYMCLK32 for HPO SE is sourced from PHYD32CLK which + * will cause DCN to hang. + */ + dccg31_disable_symclk32_se(dccg, 0); + dccg31_disable_symclk32_se(dccg, 1); + dccg31_disable_symclk32_se(dccg, 2); + dccg31_disable_symclk32_se(dccg, 3); + + dccg31_set_symclk32_le_root_clock_gating(dccg, 0, false); + dccg31_set_symclk32_le_root_clock_gating(dccg, 1, false); + + if (dccg->ctx->dc->debug.root_clock_optimization.bits.dpstream) { + dccg31_disable_dpstreamclk(dccg, 0); + dccg31_disable_dpstreamclk(dccg, 1); + dccg31_disable_dpstreamclk(dccg, 2); + dccg31_disable_dpstreamclk(dccg, 3); + } + + if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk) { + dccg31_set_physymclk(dccg, 0, PHYSYMCLK_FORCE_SRC_SYMCLK, false); + dccg31_set_physymclk(dccg, 1, PHYSYMCLK_FORCE_SRC_SYMCLK, false); + dccg31_set_physymclk(dccg, 2, PHYSYMCLK_FORCE_SRC_SYMCLK, false); + dccg31_set_physymclk(dccg, 3, PHYSYMCLK_FORCE_SRC_SYMCLK, false); + dccg31_set_physymclk(dccg, 4, PHYSYMCLK_FORCE_SRC_SYMCLK, false); + } +} + +void dccg31_otg_add_pixel(struct dccg *dccg, + uint32_t otg_inst) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + + REG_UPDATE(OTG_PIXEL_RATE_CNTL[otg_inst], + OTG_ADD_PIXEL[otg_inst], 1); +} + +void dccg31_otg_drop_pixel(struct dccg *dccg, + uint32_t otg_inst) +{ + struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg); + + REG_UPDATE(OTG_PIXEL_RATE_CNTL[otg_inst], + OTG_DROP_PIXEL[otg_inst], 1); +} + +static const struct dccg_funcs dccg31_funcs = { + .update_dpp_dto = dccg31_update_dpp_dto, + .get_dccg_ref_freq = dccg31_get_dccg_ref_freq, + .dccg_init = dccg31_init, + .set_dpstreamclk = dccg31_set_dpstreamclk, + .enable_symclk32_se = dccg31_enable_symclk32_se, + .disable_symclk32_se = dccg31_disable_symclk32_se, + .enable_symclk32_le = dccg31_enable_symclk32_le, + .disable_symclk32_le = dccg31_disable_symclk32_le, + .set_physymclk = dccg31_set_physymclk, + .set_dtbclk_dto = dccg31_set_dtbclk_dto, + .set_audio_dtbclk_dto = dccg31_set_audio_dtbclk_dto, + .set_fifo_errdet_ovr_en = dccg2_set_fifo_errdet_ovr_en, + .otg_add_pixel = dccg31_otg_add_pixel, + .otg_drop_pixel = dccg31_otg_drop_pixel, + .set_dispclk_change_mode = dccg31_set_dispclk_change_mode, + .disable_dsc = dccg31_disable_dscclk, + .enable_dsc = dccg31_enable_dscclk, +}; + +struct dccg *dccg31_create( + struct dc_context *ctx, + const struct dccg_registers *regs, + const struct dccg_shift *dccg_shift, + const struct dccg_mask *dccg_mask) +{ + struct dcn_dccg *dccg_dcn = kzalloc(sizeof(*dccg_dcn), GFP_KERNEL); + struct dccg *base; + + if (dccg_dcn == NULL) { + BREAK_TO_DEBUGGER(); + return NULL; + } + + base = &dccg_dcn->base; + base->ctx = ctx; + base->funcs = &dccg31_funcs; + + dccg_dcn->regs = regs; + dccg_dcn->dccg_shift = dccg_shift; + dccg_dcn->dccg_mask = dccg_mask; + + return &dccg_dcn->base; +} |