1 /* 2 * Copyright 2016 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: AMD 23 * 24 */ 25 26 #include "dce_hwseq.h" 27 #include "reg_helper.h" 28 #include "hw_sequencer_private.h" 29 #include "core_types.h" 30 31 #define CTX \ 32 hws->ctx 33 #define REG(reg)\ 34 hws->regs->reg 35 36 #undef FN 37 #define FN(reg_name, field_name) \ 38 hws->shifts->field_name, hws->masks->field_name 39 40 void dce_enable_fe_clock(struct dce_hwseq *hws, 41 unsigned int fe_inst, bool enable) 42 { 43 REG_UPDATE(DCFE_CLOCK_CONTROL[fe_inst], 44 DCFE_CLOCK_ENABLE, enable); 45 } 46 47 void dce_pipe_control_lock(struct dc *dc, 48 struct pipe_ctx *pipe, 49 bool lock) 50 { 51 uint32_t lock_val = lock ? 1 : 0; 52 uint32_t dcp_grph, scl, blnd, update_lock_mode, val; 53 struct dce_hwseq *hws = dc->hwseq; 54 55 /* Not lock pipe when blank */ 56 if (lock && pipe->stream_res.tg->funcs->is_blanked && 57 pipe->stream_res.tg->funcs->is_blanked(pipe->stream_res.tg)) 58 return; 59 60 val = REG_GET_4(BLND_V_UPDATE_LOCK[pipe->stream_res.tg->inst], 61 BLND_DCP_GRPH_V_UPDATE_LOCK, &dcp_grph, 62 BLND_SCL_V_UPDATE_LOCK, &scl, 63 BLND_BLND_V_UPDATE_LOCK, &blnd, 64 BLND_V_UPDATE_LOCK_MODE, &update_lock_mode); 65 66 dcp_grph = lock_val; 67 scl = lock_val; 68 blnd = lock_val; 69 update_lock_mode = lock_val; 70 71 REG_SET_2(BLND_V_UPDATE_LOCK[pipe->stream_res.tg->inst], val, 72 BLND_DCP_GRPH_V_UPDATE_LOCK, dcp_grph, 73 BLND_SCL_V_UPDATE_LOCK, scl); 74 75 if (hws->masks->BLND_BLND_V_UPDATE_LOCK != 0) 76 REG_SET_2(BLND_V_UPDATE_LOCK[pipe->stream_res.tg->inst], val, 77 BLND_BLND_V_UPDATE_LOCK, blnd, 78 BLND_V_UPDATE_LOCK_MODE, update_lock_mode); 79 80 if (hws->wa.blnd_crtc_trigger) { 81 if (!lock) { 82 uint32_t value = REG_READ(CRTC_H_BLANK_START_END[pipe->stream_res.tg->inst]); 83 REG_WRITE(CRTC_H_BLANK_START_END[pipe->stream_res.tg->inst], value); 84 } 85 } 86 } 87 88 #if defined(CONFIG_DRM_AMD_DC_SI) 89 void dce60_pipe_control_lock(struct dc *dc, 90 struct pipe_ctx *pipe, 91 bool lock) 92 { 93 /* DCE6 has no BLND_V_UPDATE_LOCK register */ 94 } 95 #endif 96 97 void dce_set_blender_mode(struct dce_hwseq *hws, 98 unsigned int blnd_inst, 99 enum blnd_mode mode) 100 { 101 uint32_t feedthrough = 1; 102 uint32_t blnd_mode = 0; 103 uint32_t multiplied_mode = 0; 104 uint32_t alpha_mode = 2; 105 106 switch (mode) { 107 case BLND_MODE_OTHER_PIPE: 108 feedthrough = 0; 109 blnd_mode = 1; 110 alpha_mode = 0; 111 break; 112 case BLND_MODE_BLENDING: 113 feedthrough = 0; 114 blnd_mode = 2; 115 alpha_mode = 0; 116 multiplied_mode = 1; 117 break; 118 case BLND_MODE_CURRENT_PIPE: 119 default: 120 if (REG(BLND_CONTROL[blnd_inst]) == REG(BLNDV_CONTROL) || 121 blnd_inst == 0) 122 feedthrough = 0; 123 break; 124 } 125 126 REG_UPDATE(BLND_CONTROL[blnd_inst], 127 BLND_MODE, blnd_mode); 128 129 if (hws->masks->BLND_ALPHA_MODE != 0) { 130 REG_UPDATE_3(BLND_CONTROL[blnd_inst], 131 BLND_FEEDTHROUGH_EN, feedthrough, 132 BLND_ALPHA_MODE, alpha_mode, 133 BLND_MULTIPLIED_MODE, multiplied_mode); 134 } 135 } 136 137 138 static void dce_disable_sram_shut_down(struct dce_hwseq *hws) 139 { 140 if (REG(DC_MEM_GLOBAL_PWR_REQ_CNTL)) 141 REG_UPDATE(DC_MEM_GLOBAL_PWR_REQ_CNTL, 142 DC_MEM_GLOBAL_PWR_REQ_DIS, 1); 143 } 144 145 static void dce_underlay_clock_enable(struct dce_hwseq *hws) 146 { 147 /* todo: why do we need this at boot? is dce_enable_fe_clock enough? */ 148 if (REG(DCFEV_CLOCK_CONTROL)) 149 REG_UPDATE(DCFEV_CLOCK_CONTROL, 150 DCFEV_CLOCK_ENABLE, 1); 151 } 152 153 static void enable_hw_base_light_sleep(void) 154 { 155 /* TODO: implement */ 156 } 157 158 static void disable_sw_manual_control_light_sleep(void) 159 { 160 /* TODO: implement */ 161 } 162 163 void dce_clock_gating_power_up(struct dce_hwseq *hws, 164 bool enable) 165 { 166 if (enable) { 167 enable_hw_base_light_sleep(); 168 disable_sw_manual_control_light_sleep(); 169 } else { 170 dce_disable_sram_shut_down(hws); 171 dce_underlay_clock_enable(hws); 172 } 173 } 174 175 void dce_crtc_switch_to_clk_src(struct dce_hwseq *hws, 176 struct clock_source *clk_src, 177 unsigned int tg_inst) 178 { 179 if (clk_src->id == CLOCK_SOURCE_ID_DP_DTO || clk_src->dp_clk_src) { 180 REG_UPDATE(PIXEL_RATE_CNTL[tg_inst], 181 DP_DTO0_ENABLE, 1); 182 183 } else if (clk_src->id >= CLOCK_SOURCE_COMBO_PHY_PLL0) { 184 uint32_t rate_source = clk_src->id - CLOCK_SOURCE_COMBO_PHY_PLL0; 185 186 REG_UPDATE_2(PHYPLL_PIXEL_RATE_CNTL[tg_inst], 187 PHYPLL_PIXEL_RATE_SOURCE, rate_source, 188 PIXEL_RATE_PLL_SOURCE, 0); 189 190 REG_UPDATE(PIXEL_RATE_CNTL[tg_inst], 191 DP_DTO0_ENABLE, 0); 192 193 } else if (clk_src->id <= CLOCK_SOURCE_ID_PLL2) { 194 uint32_t rate_source = clk_src->id - CLOCK_SOURCE_ID_PLL0; 195 196 REG_UPDATE_2(PIXEL_RATE_CNTL[tg_inst], 197 PIXEL_RATE_SOURCE, rate_source, 198 DP_DTO0_ENABLE, 0); 199 200 if (REG(PHYPLL_PIXEL_RATE_CNTL[tg_inst])) 201 REG_UPDATE(PHYPLL_PIXEL_RATE_CNTL[tg_inst], 202 PIXEL_RATE_PLL_SOURCE, 1); 203 } else { 204 DC_ERR("Unknown clock source. clk_src id: %d, TG_inst: %d", 205 clk_src->id, tg_inst); 206 } 207 } 208 209 /* Only use LUT for 8 bit formats */ 210 bool dce_use_lut(enum surface_pixel_format format) 211 { 212 switch (format) { 213 case SURFACE_PIXEL_FORMAT_GRPH_ARGB8888: 214 case SURFACE_PIXEL_FORMAT_GRPH_ABGR8888: 215 return true; 216 default: 217 return false; 218 } 219 } 220