1 /* 2 * Copyright 2019 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 "../dmub_srv.h" 27 #include "dmub_reg.h" 28 #include "dmub_dcn20.h" 29 30 #include "dcn/dcn_2_0_0_offset.h" 31 #include "dcn/dcn_2_0_0_sh_mask.h" 32 #include "soc15_hw_ip.h" 33 #include "vega10_ip_offset.h" 34 35 #define BASE_INNER(seg) DCN_BASE__INST0_SEG##seg 36 #define CTX dmub 37 #define REGS dmub->regs 38 39 /* Registers. */ 40 41 const struct dmub_srv_common_regs dmub_srv_dcn20_regs = { 42 #define DMUB_SR(reg) REG_OFFSET(reg), 43 { DMUB_COMMON_REGS() }, 44 #undef DMUB_SR 45 46 #define DMUB_SF(reg, field) FD_MASK(reg, field), 47 { DMUB_COMMON_FIELDS() }, 48 #undef DMUB_SF 49 50 #define DMUB_SF(reg, field) FD_SHIFT(reg, field), 51 { DMUB_COMMON_FIELDS() }, 52 #undef DMUB_SF 53 }; 54 55 /* Shared functions. */ 56 57 static void dmub_dcn20_get_fb_base_offset(struct dmub_srv *dmub, 58 uint64_t *fb_base, 59 uint64_t *fb_offset) 60 { 61 uint32_t tmp; 62 63 if (dmub->fb_base || dmub->fb_offset) { 64 *fb_base = dmub->fb_base; 65 *fb_offset = dmub->fb_offset; 66 return; 67 } 68 69 REG_GET(DCN_VM_FB_LOCATION_BASE, FB_BASE, &tmp); 70 *fb_base = (uint64_t)tmp << 24; 71 72 REG_GET(DCN_VM_FB_OFFSET, FB_OFFSET, &tmp); 73 *fb_offset = (uint64_t)tmp << 24; 74 } 75 76 static inline void dmub_dcn20_translate_addr(const union dmub_addr *addr_in, 77 uint64_t fb_base, 78 uint64_t fb_offset, 79 union dmub_addr *addr_out) 80 { 81 addr_out->quad_part = addr_in->quad_part - fb_base + fb_offset; 82 } 83 84 void dmub_dcn20_reset(struct dmub_srv *dmub) 85 { 86 union dmub_gpint_data_register cmd; 87 const uint32_t timeout = 30; 88 uint32_t in_reset, scratch, i; 89 90 REG_GET(DMCUB_CNTL, DMCUB_SOFT_RESET, &in_reset); 91 92 if (in_reset == 0) { 93 cmd.bits.status = 1; 94 cmd.bits.command_code = DMUB_GPINT__STOP_FW; 95 cmd.bits.param = 0; 96 97 dmub->hw_funcs.set_gpint(dmub, cmd); 98 99 /** 100 * Timeout covers both the ACK and the wait 101 * for remaining work to finish. 102 * 103 * This is mostly bound by the PHY disable sequence. 104 * Each register check will be greater than 1us, so 105 * don't bother using udelay. 106 */ 107 108 for (i = 0; i < timeout; ++i) { 109 if (dmub->hw_funcs.is_gpint_acked(dmub, cmd)) 110 break; 111 } 112 113 for (i = 0; i < timeout; ++i) { 114 scratch = dmub->hw_funcs.get_gpint_response(dmub); 115 if (scratch == DMUB_GPINT__STOP_FW_RESPONSE) 116 break; 117 } 118 119 /* Clear the GPINT command manually so we don't reset again. */ 120 cmd.all = 0; 121 dmub->hw_funcs.set_gpint(dmub, cmd); 122 123 /* Force reset in case we timed out, DMCUB is likely hung. */ 124 } 125 126 REG_UPDATE(DMCUB_CNTL, DMCUB_SOFT_RESET, 1); 127 REG_UPDATE(DMCUB_CNTL, DMCUB_ENABLE, 0); 128 REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 1); 129 REG_WRITE(DMCUB_INBOX1_RPTR, 0); 130 REG_WRITE(DMCUB_INBOX1_WPTR, 0); 131 REG_WRITE(DMCUB_SCRATCH0, 0); 132 } 133 134 void dmub_dcn20_reset_release(struct dmub_srv *dmub) 135 { 136 REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 0); 137 REG_WRITE(DMCUB_SCRATCH15, dmub->psp_version & 0x001100FF); 138 REG_UPDATE_2(DMCUB_CNTL, DMCUB_ENABLE, 1, DMCUB_TRACEPORT_EN, 1); 139 REG_UPDATE(DMCUB_CNTL, DMCUB_SOFT_RESET, 0); 140 } 141 142 void dmub_dcn20_backdoor_load(struct dmub_srv *dmub, 143 const struct dmub_window *cw0, 144 const struct dmub_window *cw1) 145 { 146 union dmub_addr offset; 147 uint64_t fb_base, fb_offset; 148 149 dmub_dcn20_get_fb_base_offset(dmub, &fb_base, &fb_offset); 150 151 REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 1); 152 REG_UPDATE_2(DMCUB_MEM_CNTL, DMCUB_MEM_READ_SPACE, 0x3, 153 DMCUB_MEM_WRITE_SPACE, 0x3); 154 155 dmub_dcn20_translate_addr(&cw0->offset, fb_base, fb_offset, &offset); 156 157 REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part); 158 REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part); 159 REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base); 160 REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0, 161 DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top, 162 DMCUB_REGION3_CW0_ENABLE, 1); 163 164 dmub_dcn20_translate_addr(&cw1->offset, fb_base, fb_offset, &offset); 165 166 REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part); 167 REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part); 168 REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base); 169 REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0, 170 DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top, 171 DMCUB_REGION3_CW1_ENABLE, 1); 172 173 REG_UPDATE_2(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0, DMCUB_MEM_UNIT_ID, 174 0x20); 175 } 176 177 void dmub_dcn20_setup_windows(struct dmub_srv *dmub, 178 const struct dmub_window *cw2, 179 const struct dmub_window *cw3, 180 const struct dmub_window *cw4, 181 const struct dmub_window *cw5, 182 const struct dmub_window *cw6) 183 { 184 union dmub_addr offset; 185 uint64_t fb_base, fb_offset; 186 187 dmub_dcn20_get_fb_base_offset(dmub, &fb_base, &fb_offset); 188 189 if (cw2->region.base != cw2->region.top) { 190 dmub_dcn20_translate_addr(&cw2->offset, fb_base, fb_offset, 191 &offset); 192 193 REG_WRITE(DMCUB_REGION3_CW2_OFFSET, offset.u.low_part); 194 REG_WRITE(DMCUB_REGION3_CW2_OFFSET_HIGH, offset.u.high_part); 195 REG_WRITE(DMCUB_REGION3_CW2_BASE_ADDRESS, cw2->region.base); 196 REG_SET_2(DMCUB_REGION3_CW2_TOP_ADDRESS, 0, 197 DMCUB_REGION3_CW2_TOP_ADDRESS, cw2->region.top, 198 DMCUB_REGION3_CW2_ENABLE, 1); 199 } else { 200 REG_WRITE(DMCUB_REGION3_CW2_OFFSET, 0); 201 REG_WRITE(DMCUB_REGION3_CW2_OFFSET_HIGH, 0); 202 REG_WRITE(DMCUB_REGION3_CW2_BASE_ADDRESS, 0); 203 REG_WRITE(DMCUB_REGION3_CW2_TOP_ADDRESS, 0); 204 } 205 206 dmub_dcn20_translate_addr(&cw3->offset, fb_base, fb_offset, &offset); 207 208 REG_WRITE(DMCUB_REGION3_CW3_OFFSET, offset.u.low_part); 209 REG_WRITE(DMCUB_REGION3_CW3_OFFSET_HIGH, offset.u.high_part); 210 REG_WRITE(DMCUB_REGION3_CW3_BASE_ADDRESS, cw3->region.base); 211 REG_SET_2(DMCUB_REGION3_CW3_TOP_ADDRESS, 0, 212 DMCUB_REGION3_CW3_TOP_ADDRESS, cw3->region.top, 213 DMCUB_REGION3_CW3_ENABLE, 1); 214 215 /* TODO: Move this to CW4. */ 216 dmub_dcn20_translate_addr(&cw4->offset, fb_base, fb_offset, &offset); 217 218 /* New firmware can support CW4. */ 219 if (dmub->fw_version > DMUB_FW_VERSION(1, 0, 10)) { 220 REG_WRITE(DMCUB_REGION3_CW4_OFFSET, offset.u.low_part); 221 REG_WRITE(DMCUB_REGION3_CW4_OFFSET_HIGH, offset.u.high_part); 222 REG_WRITE(DMCUB_REGION3_CW4_BASE_ADDRESS, cw4->region.base); 223 REG_SET_2(DMCUB_REGION3_CW4_TOP_ADDRESS, 0, 224 DMCUB_REGION3_CW4_TOP_ADDRESS, cw4->region.top, 225 DMCUB_REGION3_CW4_ENABLE, 1); 226 } else { 227 REG_WRITE(DMCUB_REGION4_OFFSET, offset.u.low_part); 228 REG_WRITE(DMCUB_REGION4_OFFSET_HIGH, offset.u.high_part); 229 REG_SET_2(DMCUB_REGION4_TOP_ADDRESS, 0, 230 DMCUB_REGION4_TOP_ADDRESS, 231 cw4->region.top - cw4->region.base - 1, 232 DMCUB_REGION4_ENABLE, 1); 233 } 234 235 dmub_dcn20_translate_addr(&cw5->offset, fb_base, fb_offset, &offset); 236 237 REG_WRITE(DMCUB_REGION3_CW5_OFFSET, offset.u.low_part); 238 REG_WRITE(DMCUB_REGION3_CW5_OFFSET_HIGH, offset.u.high_part); 239 REG_WRITE(DMCUB_REGION3_CW5_BASE_ADDRESS, cw5->region.base); 240 REG_SET_2(DMCUB_REGION3_CW5_TOP_ADDRESS, 0, 241 DMCUB_REGION3_CW5_TOP_ADDRESS, cw5->region.top, 242 DMCUB_REGION3_CW5_ENABLE, 1); 243 244 dmub_dcn20_translate_addr(&cw6->offset, fb_base, fb_offset, &offset); 245 246 REG_WRITE(DMCUB_REGION3_CW6_OFFSET, offset.u.low_part); 247 REG_WRITE(DMCUB_REGION3_CW6_OFFSET_HIGH, offset.u.high_part); 248 REG_WRITE(DMCUB_REGION3_CW6_BASE_ADDRESS, cw6->region.base); 249 REG_SET_2(DMCUB_REGION3_CW6_TOP_ADDRESS, 0, 250 DMCUB_REGION3_CW6_TOP_ADDRESS, cw6->region.top, 251 DMCUB_REGION3_CW6_ENABLE, 1); 252 } 253 254 void dmub_dcn20_setup_mailbox(struct dmub_srv *dmub, 255 const struct dmub_region *inbox1) 256 { 257 /* New firmware can support CW4 for the inbox. */ 258 if (dmub->fw_version > DMUB_FW_VERSION(1, 0, 10)) 259 REG_WRITE(DMCUB_INBOX1_BASE_ADDRESS, inbox1->base); 260 else 261 REG_WRITE(DMCUB_INBOX1_BASE_ADDRESS, 0x80000000); 262 263 REG_WRITE(DMCUB_INBOX1_SIZE, inbox1->top - inbox1->base); 264 } 265 266 uint32_t dmub_dcn20_get_inbox1_rptr(struct dmub_srv *dmub) 267 { 268 return REG_READ(DMCUB_INBOX1_RPTR); 269 } 270 271 void dmub_dcn20_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset) 272 { 273 REG_WRITE(DMCUB_INBOX1_WPTR, wptr_offset); 274 } 275 276 bool dmub_dcn20_is_hw_init(struct dmub_srv *dmub) 277 { 278 uint32_t is_hw_init; 279 280 REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_hw_init); 281 282 return is_hw_init != 0; 283 } 284 285 bool dmub_dcn20_is_supported(struct dmub_srv *dmub) 286 { 287 uint32_t supported = 0; 288 289 REG_GET(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE, &supported); 290 291 return supported; 292 } 293 294 void dmub_dcn20_set_gpint(struct dmub_srv *dmub, 295 union dmub_gpint_data_register reg) 296 { 297 REG_WRITE(DMCUB_GPINT_DATAIN1, reg.all); 298 } 299 300 bool dmub_dcn20_is_gpint_acked(struct dmub_srv *dmub, 301 union dmub_gpint_data_register reg) 302 { 303 union dmub_gpint_data_register test; 304 305 reg.bits.status = 0; 306 test.all = REG_READ(DMCUB_GPINT_DATAIN1); 307 308 return test.all == reg.all; 309 } 310 311 uint32_t dmub_dcn20_get_gpint_response(struct dmub_srv *dmub) 312 { 313 return REG_READ(DMCUB_SCRATCH7); 314 } 315