1 /* 2 * Copyright 2014 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: Alex Deucher 23 */ 24 #include <linux/firmware.h> 25 #include <drm/drmP.h> 26 #include "amdgpu.h" 27 #include "amdgpu_ucode.h" 28 #include "amdgpu_trace.h" 29 #include "vi.h" 30 #include "vid.h" 31 32 #include "oss/oss_3_0_d.h" 33 #include "oss/oss_3_0_sh_mask.h" 34 35 #include "gmc/gmc_8_1_d.h" 36 #include "gmc/gmc_8_1_sh_mask.h" 37 38 #include "gca/gfx_8_0_d.h" 39 #include "gca/gfx_8_0_enum.h" 40 #include "gca/gfx_8_0_sh_mask.h" 41 42 #include "bif/bif_5_0_d.h" 43 #include "bif/bif_5_0_sh_mask.h" 44 45 #include "tonga_sdma_pkt_open.h" 46 47 static void sdma_v3_0_set_ring_funcs(struct amdgpu_device *adev); 48 static void sdma_v3_0_set_buffer_funcs(struct amdgpu_device *adev); 49 static void sdma_v3_0_set_vm_pte_funcs(struct amdgpu_device *adev); 50 static void sdma_v3_0_set_irq_funcs(struct amdgpu_device *adev); 51 52 MODULE_FIRMWARE("amdgpu/tonga_sdma.bin"); 53 MODULE_FIRMWARE("amdgpu/tonga_sdma1.bin"); 54 MODULE_FIRMWARE("amdgpu/carrizo_sdma.bin"); 55 MODULE_FIRMWARE("amdgpu/carrizo_sdma1.bin"); 56 MODULE_FIRMWARE("amdgpu/fiji_sdma.bin"); 57 MODULE_FIRMWARE("amdgpu/fiji_sdma1.bin"); 58 MODULE_FIRMWARE("amdgpu/stoney_sdma.bin"); 59 MODULE_FIRMWARE("amdgpu/polaris10_sdma.bin"); 60 MODULE_FIRMWARE("amdgpu/polaris10_sdma1.bin"); 61 MODULE_FIRMWARE("amdgpu/polaris11_sdma.bin"); 62 MODULE_FIRMWARE("amdgpu/polaris11_sdma1.bin"); 63 MODULE_FIRMWARE("amdgpu/polaris12_sdma.bin"); 64 MODULE_FIRMWARE("amdgpu/polaris12_sdma1.bin"); 65 66 67 static const u32 sdma_offsets[SDMA_MAX_INSTANCE] = 68 { 69 SDMA0_REGISTER_OFFSET, 70 SDMA1_REGISTER_OFFSET 71 }; 72 73 static const u32 golden_settings_tonga_a11[] = 74 { 75 mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007, 76 mmSDMA0_CLK_CTRL, 0xff000fff, 0x00000000, 77 mmSDMA0_GFX_IB_CNTL, 0x800f0111, 0x00000100, 78 mmSDMA0_RLC0_IB_CNTL, 0x800f0111, 0x00000100, 79 mmSDMA0_RLC1_IB_CNTL, 0x800f0111, 0x00000100, 80 mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007, 81 mmSDMA1_CLK_CTRL, 0xff000fff, 0x00000000, 82 mmSDMA1_GFX_IB_CNTL, 0x800f0111, 0x00000100, 83 mmSDMA1_RLC0_IB_CNTL, 0x800f0111, 0x00000100, 84 mmSDMA1_RLC1_IB_CNTL, 0x800f0111, 0x00000100, 85 }; 86 87 static const u32 tonga_mgcg_cgcg_init[] = 88 { 89 mmSDMA0_CLK_CTRL, 0xff000ff0, 0x00000100, 90 mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100 91 }; 92 93 static const u32 golden_settings_fiji_a10[] = 94 { 95 mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007, 96 mmSDMA0_GFX_IB_CNTL, 0x800f0111, 0x00000100, 97 mmSDMA0_RLC0_IB_CNTL, 0x800f0111, 0x00000100, 98 mmSDMA0_RLC1_IB_CNTL, 0x800f0111, 0x00000100, 99 mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007, 100 mmSDMA1_GFX_IB_CNTL, 0x800f0111, 0x00000100, 101 mmSDMA1_RLC0_IB_CNTL, 0x800f0111, 0x00000100, 102 mmSDMA1_RLC1_IB_CNTL, 0x800f0111, 0x00000100, 103 }; 104 105 static const u32 fiji_mgcg_cgcg_init[] = 106 { 107 mmSDMA0_CLK_CTRL, 0xff000ff0, 0x00000100, 108 mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100 109 }; 110 111 static const u32 golden_settings_polaris11_a11[] = 112 { 113 mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007, 114 mmSDMA0_CLK_CTRL, 0xff000fff, 0x00000000, 115 mmSDMA0_GFX_IB_CNTL, 0x800f0111, 0x00000100, 116 mmSDMA0_RLC0_IB_CNTL, 0x800f0111, 0x00000100, 117 mmSDMA0_RLC1_IB_CNTL, 0x800f0111, 0x00000100, 118 mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007, 119 mmSDMA1_CLK_CTRL, 0xff000fff, 0x00000000, 120 mmSDMA1_GFX_IB_CNTL, 0x800f0111, 0x00000100, 121 mmSDMA1_RLC0_IB_CNTL, 0x800f0111, 0x00000100, 122 mmSDMA1_RLC1_IB_CNTL, 0x800f0111, 0x00000100, 123 }; 124 125 static const u32 golden_settings_polaris10_a11[] = 126 { 127 mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007, 128 mmSDMA0_CLK_CTRL, 0xff000fff, 0x00000000, 129 mmSDMA0_GFX_IB_CNTL, 0x800f0111, 0x00000100, 130 mmSDMA0_RLC0_IB_CNTL, 0x800f0111, 0x00000100, 131 mmSDMA0_RLC1_IB_CNTL, 0x800f0111, 0x00000100, 132 mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007, 133 mmSDMA1_CLK_CTRL, 0xff000fff, 0x00000000, 134 mmSDMA1_GFX_IB_CNTL, 0x800f0111, 0x00000100, 135 mmSDMA1_RLC0_IB_CNTL, 0x800f0111, 0x00000100, 136 mmSDMA1_RLC1_IB_CNTL, 0x800f0111, 0x00000100, 137 }; 138 139 static const u32 cz_golden_settings_a11[] = 140 { 141 mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007, 142 mmSDMA0_CLK_CTRL, 0xff000fff, 0x00000000, 143 mmSDMA0_GFX_IB_CNTL, 0x00000100, 0x00000100, 144 mmSDMA0_POWER_CNTL, 0x00000800, 0x0003c800, 145 mmSDMA0_RLC0_IB_CNTL, 0x00000100, 0x00000100, 146 mmSDMA0_RLC1_IB_CNTL, 0x00000100, 0x00000100, 147 mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007, 148 mmSDMA1_CLK_CTRL, 0xff000fff, 0x00000000, 149 mmSDMA1_GFX_IB_CNTL, 0x00000100, 0x00000100, 150 mmSDMA1_POWER_CNTL, 0x00000800, 0x0003c800, 151 mmSDMA1_RLC0_IB_CNTL, 0x00000100, 0x00000100, 152 mmSDMA1_RLC1_IB_CNTL, 0x00000100, 0x00000100, 153 }; 154 155 static const u32 cz_mgcg_cgcg_init[] = 156 { 157 mmSDMA0_CLK_CTRL, 0xff000ff0, 0x00000100, 158 mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100 159 }; 160 161 static const u32 stoney_golden_settings_a11[] = 162 { 163 mmSDMA0_GFX_IB_CNTL, 0x00000100, 0x00000100, 164 mmSDMA0_POWER_CNTL, 0x00000800, 0x0003c800, 165 mmSDMA0_RLC0_IB_CNTL, 0x00000100, 0x00000100, 166 mmSDMA0_RLC1_IB_CNTL, 0x00000100, 0x00000100, 167 }; 168 169 static const u32 stoney_mgcg_cgcg_init[] = 170 { 171 mmSDMA0_CLK_CTRL, 0xffffffff, 0x00000100, 172 }; 173 174 /* 175 * sDMA - System DMA 176 * Starting with CIK, the GPU has new asynchronous 177 * DMA engines. These engines are used for compute 178 * and gfx. There are two DMA engines (SDMA0, SDMA1) 179 * and each one supports 1 ring buffer used for gfx 180 * and 2 queues used for compute. 181 * 182 * The programming model is very similar to the CP 183 * (ring buffer, IBs, etc.), but sDMA has it's own 184 * packet format that is different from the PM4 format 185 * used by the CP. sDMA supports copying data, writing 186 * embedded data, solid fills, and a number of other 187 * things. It also has support for tiling/detiling of 188 * buffers. 189 */ 190 191 static void sdma_v3_0_init_golden_registers(struct amdgpu_device *adev) 192 { 193 switch (adev->asic_type) { 194 case CHIP_FIJI: 195 amdgpu_device_program_register_sequence(adev, 196 fiji_mgcg_cgcg_init, 197 ARRAY_SIZE(fiji_mgcg_cgcg_init)); 198 amdgpu_device_program_register_sequence(adev, 199 golden_settings_fiji_a10, 200 ARRAY_SIZE(golden_settings_fiji_a10)); 201 break; 202 case CHIP_TONGA: 203 amdgpu_device_program_register_sequence(adev, 204 tonga_mgcg_cgcg_init, 205 ARRAY_SIZE(tonga_mgcg_cgcg_init)); 206 amdgpu_device_program_register_sequence(adev, 207 golden_settings_tonga_a11, 208 ARRAY_SIZE(golden_settings_tonga_a11)); 209 break; 210 case CHIP_POLARIS11: 211 case CHIP_POLARIS12: 212 amdgpu_device_program_register_sequence(adev, 213 golden_settings_polaris11_a11, 214 ARRAY_SIZE(golden_settings_polaris11_a11)); 215 break; 216 case CHIP_POLARIS10: 217 amdgpu_device_program_register_sequence(adev, 218 golden_settings_polaris10_a11, 219 ARRAY_SIZE(golden_settings_polaris10_a11)); 220 break; 221 case CHIP_CARRIZO: 222 amdgpu_device_program_register_sequence(adev, 223 cz_mgcg_cgcg_init, 224 ARRAY_SIZE(cz_mgcg_cgcg_init)); 225 amdgpu_device_program_register_sequence(adev, 226 cz_golden_settings_a11, 227 ARRAY_SIZE(cz_golden_settings_a11)); 228 break; 229 case CHIP_STONEY: 230 amdgpu_device_program_register_sequence(adev, 231 stoney_mgcg_cgcg_init, 232 ARRAY_SIZE(stoney_mgcg_cgcg_init)); 233 amdgpu_device_program_register_sequence(adev, 234 stoney_golden_settings_a11, 235 ARRAY_SIZE(stoney_golden_settings_a11)); 236 break; 237 default: 238 break; 239 } 240 } 241 242 static void sdma_v3_0_free_microcode(struct amdgpu_device *adev) 243 { 244 int i; 245 for (i = 0; i < adev->sdma.num_instances; i++) { 246 release_firmware(adev->sdma.instance[i].fw); 247 adev->sdma.instance[i].fw = NULL; 248 } 249 } 250 251 /** 252 * sdma_v3_0_init_microcode - load ucode images from disk 253 * 254 * @adev: amdgpu_device pointer 255 * 256 * Use the firmware interface to load the ucode images into 257 * the driver (not loaded into hw). 258 * Returns 0 on success, error on failure. 259 */ 260 static int sdma_v3_0_init_microcode(struct amdgpu_device *adev) 261 { 262 const char *chip_name; 263 char fw_name[30]; 264 int err = 0, i; 265 struct amdgpu_firmware_info *info = NULL; 266 const struct common_firmware_header *header = NULL; 267 const struct sdma_firmware_header_v1_0 *hdr; 268 269 DRM_DEBUG("\n"); 270 271 switch (adev->asic_type) { 272 case CHIP_TONGA: 273 chip_name = "tonga"; 274 break; 275 case CHIP_FIJI: 276 chip_name = "fiji"; 277 break; 278 case CHIP_POLARIS11: 279 chip_name = "polaris11"; 280 break; 281 case CHIP_POLARIS10: 282 chip_name = "polaris10"; 283 break; 284 case CHIP_POLARIS12: 285 chip_name = "polaris12"; 286 break; 287 case CHIP_CARRIZO: 288 chip_name = "carrizo"; 289 break; 290 case CHIP_STONEY: 291 chip_name = "stoney"; 292 break; 293 default: BUG(); 294 } 295 296 for (i = 0; i < adev->sdma.num_instances; i++) { 297 if (i == 0) 298 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name); 299 else 300 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma1.bin", chip_name); 301 err = request_firmware(&adev->sdma.instance[i].fw, fw_name, adev->dev); 302 if (err) 303 goto out; 304 err = amdgpu_ucode_validate(adev->sdma.instance[i].fw); 305 if (err) 306 goto out; 307 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data; 308 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version); 309 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version); 310 if (adev->sdma.instance[i].feature_version >= 20) 311 adev->sdma.instance[i].burst_nop = true; 312 313 if (adev->firmware.load_type == AMDGPU_FW_LOAD_SMU) { 314 info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i]; 315 info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i; 316 info->fw = adev->sdma.instance[i].fw; 317 header = (const struct common_firmware_header *)info->fw->data; 318 adev->firmware.fw_size += 319 ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE); 320 } 321 } 322 out: 323 if (err) { 324 pr_err("sdma_v3_0: Failed to load firmware \"%s\"\n", fw_name); 325 for (i = 0; i < adev->sdma.num_instances; i++) { 326 release_firmware(adev->sdma.instance[i].fw); 327 adev->sdma.instance[i].fw = NULL; 328 } 329 } 330 return err; 331 } 332 333 /** 334 * sdma_v3_0_ring_get_rptr - get the current read pointer 335 * 336 * @ring: amdgpu ring pointer 337 * 338 * Get the current rptr from the hardware (VI+). 339 */ 340 static uint64_t sdma_v3_0_ring_get_rptr(struct amdgpu_ring *ring) 341 { 342 /* XXX check if swapping is necessary on BE */ 343 return ring->adev->wb.wb[ring->rptr_offs] >> 2; 344 } 345 346 /** 347 * sdma_v3_0_ring_get_wptr - get the current write pointer 348 * 349 * @ring: amdgpu ring pointer 350 * 351 * Get the current wptr from the hardware (VI+). 352 */ 353 static uint64_t sdma_v3_0_ring_get_wptr(struct amdgpu_ring *ring) 354 { 355 struct amdgpu_device *adev = ring->adev; 356 u32 wptr; 357 358 if (ring->use_doorbell || ring->use_pollmem) { 359 /* XXX check if swapping is necessary on BE */ 360 wptr = ring->adev->wb.wb[ring->wptr_offs] >> 2; 361 } else { 362 int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1; 363 364 wptr = RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me]) >> 2; 365 } 366 367 return wptr; 368 } 369 370 /** 371 * sdma_v3_0_ring_set_wptr - commit the write pointer 372 * 373 * @ring: amdgpu ring pointer 374 * 375 * Write the wptr back to the hardware (VI+). 376 */ 377 static void sdma_v3_0_ring_set_wptr(struct amdgpu_ring *ring) 378 { 379 struct amdgpu_device *adev = ring->adev; 380 381 if (ring->use_doorbell) { 382 u32 *wb = (u32 *)&adev->wb.wb[ring->wptr_offs]; 383 /* XXX check if swapping is necessary on BE */ 384 WRITE_ONCE(*wb, (lower_32_bits(ring->wptr) << 2)); 385 WDOORBELL32(ring->doorbell_index, lower_32_bits(ring->wptr) << 2); 386 } else if (ring->use_pollmem) { 387 u32 *wb = (u32 *)&adev->wb.wb[ring->wptr_offs]; 388 389 WRITE_ONCE(*wb, (lower_32_bits(ring->wptr) << 2)); 390 } else { 391 int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1; 392 393 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me], lower_32_bits(ring->wptr) << 2); 394 } 395 } 396 397 static void sdma_v3_0_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count) 398 { 399 struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring); 400 int i; 401 402 for (i = 0; i < count; i++) 403 if (sdma && sdma->burst_nop && (i == 0)) 404 amdgpu_ring_write(ring, ring->funcs->nop | 405 SDMA_PKT_NOP_HEADER_COUNT(count - 1)); 406 else 407 amdgpu_ring_write(ring, ring->funcs->nop); 408 } 409 410 /** 411 * sdma_v3_0_ring_emit_ib - Schedule an IB on the DMA engine 412 * 413 * @ring: amdgpu ring pointer 414 * @ib: IB object to schedule 415 * 416 * Schedule an IB in the DMA ring (VI). 417 */ 418 static void sdma_v3_0_ring_emit_ib(struct amdgpu_ring *ring, 419 struct amdgpu_ib *ib, 420 unsigned vmid, bool ctx_switch) 421 { 422 /* IB packet must end on a 8 DW boundary */ 423 sdma_v3_0_ring_insert_nop(ring, (10 - (lower_32_bits(ring->wptr) & 7)) % 8); 424 425 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) | 426 SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf)); 427 /* base must be 32 byte aligned */ 428 amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0); 429 amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr)); 430 amdgpu_ring_write(ring, ib->length_dw); 431 amdgpu_ring_write(ring, 0); 432 amdgpu_ring_write(ring, 0); 433 434 } 435 436 /** 437 * sdma_v3_0_ring_emit_hdp_flush - emit an hdp flush on the DMA ring 438 * 439 * @ring: amdgpu ring pointer 440 * 441 * Emit an hdp flush packet on the requested DMA ring. 442 */ 443 static void sdma_v3_0_ring_emit_hdp_flush(struct amdgpu_ring *ring) 444 { 445 u32 ref_and_mask = 0; 446 447 if (ring == &ring->adev->sdma.instance[0].ring) 448 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA0, 1); 449 else 450 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA1, 1); 451 452 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | 453 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) | 454 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */ 455 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_DONE << 2); 456 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_REQ << 2); 457 amdgpu_ring_write(ring, ref_and_mask); /* reference */ 458 amdgpu_ring_write(ring, ref_and_mask); /* mask */ 459 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | 460 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */ 461 } 462 463 static void sdma_v3_0_ring_emit_hdp_invalidate(struct amdgpu_ring *ring) 464 { 465 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) | 466 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf)); 467 amdgpu_ring_write(ring, mmHDP_DEBUG0); 468 amdgpu_ring_write(ring, 1); 469 } 470 471 /** 472 * sdma_v3_0_ring_emit_fence - emit a fence on the DMA ring 473 * 474 * @ring: amdgpu ring pointer 475 * @fence: amdgpu fence object 476 * 477 * Add a DMA fence packet to the ring to write 478 * the fence seq number and DMA trap packet to generate 479 * an interrupt if needed (VI). 480 */ 481 static void sdma_v3_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq, 482 unsigned flags) 483 { 484 bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT; 485 /* write the fence */ 486 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE)); 487 amdgpu_ring_write(ring, lower_32_bits(addr)); 488 amdgpu_ring_write(ring, upper_32_bits(addr)); 489 amdgpu_ring_write(ring, lower_32_bits(seq)); 490 491 /* optionally write high bits as well */ 492 if (write64bit) { 493 addr += 4; 494 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE)); 495 amdgpu_ring_write(ring, lower_32_bits(addr)); 496 amdgpu_ring_write(ring, upper_32_bits(addr)); 497 amdgpu_ring_write(ring, upper_32_bits(seq)); 498 } 499 500 /* generate an interrupt */ 501 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP)); 502 amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0)); 503 } 504 505 /** 506 * sdma_v3_0_gfx_stop - stop the gfx async dma engines 507 * 508 * @adev: amdgpu_device pointer 509 * 510 * Stop the gfx async dma ring buffers (VI). 511 */ 512 static void sdma_v3_0_gfx_stop(struct amdgpu_device *adev) 513 { 514 struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].ring; 515 struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].ring; 516 u32 rb_cntl, ib_cntl; 517 int i; 518 519 if ((adev->mman.buffer_funcs_ring == sdma0) || 520 (adev->mman.buffer_funcs_ring == sdma1)) 521 amdgpu_ttm_set_active_vram_size(adev, adev->gmc.visible_vram_size); 522 523 for (i = 0; i < adev->sdma.num_instances; i++) { 524 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]); 525 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0); 526 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); 527 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]); 528 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0); 529 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl); 530 } 531 sdma0->ready = false; 532 sdma1->ready = false; 533 } 534 535 /** 536 * sdma_v3_0_rlc_stop - stop the compute async dma engines 537 * 538 * @adev: amdgpu_device pointer 539 * 540 * Stop the compute async dma queues (VI). 541 */ 542 static void sdma_v3_0_rlc_stop(struct amdgpu_device *adev) 543 { 544 /* XXX todo */ 545 } 546 547 /** 548 * sdma_v3_0_ctx_switch_enable - stop the async dma engines context switch 549 * 550 * @adev: amdgpu_device pointer 551 * @enable: enable/disable the DMA MEs context switch. 552 * 553 * Halt or unhalt the async dma engines context switch (VI). 554 */ 555 static void sdma_v3_0_ctx_switch_enable(struct amdgpu_device *adev, bool enable) 556 { 557 u32 f32_cntl, phase_quantum = 0; 558 int i; 559 560 if (amdgpu_sdma_phase_quantum) { 561 unsigned value = amdgpu_sdma_phase_quantum; 562 unsigned unit = 0; 563 564 while (value > (SDMA0_PHASE0_QUANTUM__VALUE_MASK >> 565 SDMA0_PHASE0_QUANTUM__VALUE__SHIFT)) { 566 value = (value + 1) >> 1; 567 unit++; 568 } 569 if (unit > (SDMA0_PHASE0_QUANTUM__UNIT_MASK >> 570 SDMA0_PHASE0_QUANTUM__UNIT__SHIFT)) { 571 value = (SDMA0_PHASE0_QUANTUM__VALUE_MASK >> 572 SDMA0_PHASE0_QUANTUM__VALUE__SHIFT); 573 unit = (SDMA0_PHASE0_QUANTUM__UNIT_MASK >> 574 SDMA0_PHASE0_QUANTUM__UNIT__SHIFT); 575 WARN_ONCE(1, 576 "clamping sdma_phase_quantum to %uK clock cycles\n", 577 value << unit); 578 } 579 phase_quantum = 580 value << SDMA0_PHASE0_QUANTUM__VALUE__SHIFT | 581 unit << SDMA0_PHASE0_QUANTUM__UNIT__SHIFT; 582 } 583 584 for (i = 0; i < adev->sdma.num_instances; i++) { 585 f32_cntl = RREG32(mmSDMA0_CNTL + sdma_offsets[i]); 586 if (enable) { 587 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL, 588 AUTO_CTXSW_ENABLE, 1); 589 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL, 590 ATC_L1_ENABLE, 1); 591 if (amdgpu_sdma_phase_quantum) { 592 WREG32(mmSDMA0_PHASE0_QUANTUM + sdma_offsets[i], 593 phase_quantum); 594 WREG32(mmSDMA0_PHASE1_QUANTUM + sdma_offsets[i], 595 phase_quantum); 596 } 597 } else { 598 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL, 599 AUTO_CTXSW_ENABLE, 0); 600 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL, 601 ATC_L1_ENABLE, 1); 602 } 603 604 WREG32(mmSDMA0_CNTL + sdma_offsets[i], f32_cntl); 605 } 606 } 607 608 /** 609 * sdma_v3_0_enable - stop the async dma engines 610 * 611 * @adev: amdgpu_device pointer 612 * @enable: enable/disable the DMA MEs. 613 * 614 * Halt or unhalt the async dma engines (VI). 615 */ 616 static void sdma_v3_0_enable(struct amdgpu_device *adev, bool enable) 617 { 618 u32 f32_cntl; 619 int i; 620 621 if (!enable) { 622 sdma_v3_0_gfx_stop(adev); 623 sdma_v3_0_rlc_stop(adev); 624 } 625 626 for (i = 0; i < adev->sdma.num_instances; i++) { 627 f32_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]); 628 if (enable) 629 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 0); 630 else 631 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 1); 632 WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], f32_cntl); 633 } 634 } 635 636 /** 637 * sdma_v3_0_gfx_resume - setup and start the async dma engines 638 * 639 * @adev: amdgpu_device pointer 640 * 641 * Set up the gfx DMA ring buffers and enable them (VI). 642 * Returns 0 for success, error for failure. 643 */ 644 static int sdma_v3_0_gfx_resume(struct amdgpu_device *adev) 645 { 646 struct amdgpu_ring *ring; 647 u32 rb_cntl, ib_cntl, wptr_poll_cntl; 648 u32 rb_bufsz; 649 u32 wb_offset; 650 u32 doorbell; 651 u64 wptr_gpu_addr; 652 int i, j, r; 653 654 for (i = 0; i < adev->sdma.num_instances; i++) { 655 ring = &adev->sdma.instance[i].ring; 656 amdgpu_ring_clear_ring(ring); 657 wb_offset = (ring->rptr_offs * 4); 658 659 mutex_lock(&adev->srbm_mutex); 660 for (j = 0; j < 16; j++) { 661 vi_srbm_select(adev, 0, 0, 0, j); 662 /* SDMA GFX */ 663 WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0); 664 WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0); 665 } 666 vi_srbm_select(adev, 0, 0, 0, 0); 667 mutex_unlock(&adev->srbm_mutex); 668 669 WREG32(mmSDMA0_TILING_CONFIG + sdma_offsets[i], 670 adev->gfx.config.gb_addr_config & 0x70); 671 672 WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0); 673 674 /* Set ring buffer size in dwords */ 675 rb_bufsz = order_base_2(ring->ring_size / 4); 676 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]); 677 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz); 678 #ifdef __BIG_ENDIAN 679 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1); 680 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, 681 RPTR_WRITEBACK_SWAP_ENABLE, 1); 682 #endif 683 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); 684 685 /* Initialize the ring buffer's read and write pointers */ 686 ring->wptr = 0; 687 WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0); 688 sdma_v3_0_ring_set_wptr(ring); 689 WREG32(mmSDMA0_GFX_IB_RPTR + sdma_offsets[i], 0); 690 WREG32(mmSDMA0_GFX_IB_OFFSET + sdma_offsets[i], 0); 691 692 /* set the wb address whether it's enabled or not */ 693 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i], 694 upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF); 695 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i], 696 lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC); 697 698 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1); 699 700 WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8); 701 WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40); 702 703 doorbell = RREG32(mmSDMA0_GFX_DOORBELL + sdma_offsets[i]); 704 705 if (ring->use_doorbell) { 706 doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, 707 OFFSET, ring->doorbell_index); 708 doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 1); 709 } else { 710 doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 0); 711 } 712 WREG32(mmSDMA0_GFX_DOORBELL + sdma_offsets[i], doorbell); 713 714 /* setup the wptr shadow polling */ 715 wptr_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4); 716 717 WREG32(mmSDMA0_GFX_RB_WPTR_POLL_ADDR_LO + sdma_offsets[i], 718 lower_32_bits(wptr_gpu_addr)); 719 WREG32(mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI + sdma_offsets[i], 720 upper_32_bits(wptr_gpu_addr)); 721 wptr_poll_cntl = RREG32(mmSDMA0_GFX_RB_WPTR_POLL_CNTL + sdma_offsets[i]); 722 if (ring->use_pollmem) 723 wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, 724 SDMA0_GFX_RB_WPTR_POLL_CNTL, 725 ENABLE, 1); 726 else 727 wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, 728 SDMA0_GFX_RB_WPTR_POLL_CNTL, 729 ENABLE, 0); 730 WREG32(mmSDMA0_GFX_RB_WPTR_POLL_CNTL + sdma_offsets[i], wptr_poll_cntl); 731 732 /* enable DMA RB */ 733 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1); 734 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); 735 736 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]); 737 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1); 738 #ifdef __BIG_ENDIAN 739 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1); 740 #endif 741 /* enable DMA IBs */ 742 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl); 743 744 ring->ready = true; 745 } 746 747 /* unhalt the MEs */ 748 sdma_v3_0_enable(adev, true); 749 /* enable sdma ring preemption */ 750 sdma_v3_0_ctx_switch_enable(adev, true); 751 752 for (i = 0; i < adev->sdma.num_instances; i++) { 753 ring = &adev->sdma.instance[i].ring; 754 r = amdgpu_ring_test_ring(ring); 755 if (r) { 756 ring->ready = false; 757 return r; 758 } 759 760 if (adev->mman.buffer_funcs_ring == ring) 761 amdgpu_ttm_set_active_vram_size(adev, adev->gmc.real_vram_size); 762 } 763 764 return 0; 765 } 766 767 /** 768 * sdma_v3_0_rlc_resume - setup and start the async dma engines 769 * 770 * @adev: amdgpu_device pointer 771 * 772 * Set up the compute DMA queues and enable them (VI). 773 * Returns 0 for success, error for failure. 774 */ 775 static int sdma_v3_0_rlc_resume(struct amdgpu_device *adev) 776 { 777 /* XXX todo */ 778 return 0; 779 } 780 781 /** 782 * sdma_v3_0_load_microcode - load the sDMA ME ucode 783 * 784 * @adev: amdgpu_device pointer 785 * 786 * Loads the sDMA0/1 ucode. 787 * Returns 0 for success, -EINVAL if the ucode is not available. 788 */ 789 static int sdma_v3_0_load_microcode(struct amdgpu_device *adev) 790 { 791 const struct sdma_firmware_header_v1_0 *hdr; 792 const __le32 *fw_data; 793 u32 fw_size; 794 int i, j; 795 796 /* halt the MEs */ 797 sdma_v3_0_enable(adev, false); 798 799 for (i = 0; i < adev->sdma.num_instances; i++) { 800 if (!adev->sdma.instance[i].fw) 801 return -EINVAL; 802 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data; 803 amdgpu_ucode_print_sdma_hdr(&hdr->header); 804 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; 805 fw_data = (const __le32 *) 806 (adev->sdma.instance[i].fw->data + 807 le32_to_cpu(hdr->header.ucode_array_offset_bytes)); 808 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], 0); 809 for (j = 0; j < fw_size; j++) 810 WREG32(mmSDMA0_UCODE_DATA + sdma_offsets[i], le32_to_cpup(fw_data++)); 811 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], adev->sdma.instance[i].fw_version); 812 } 813 814 return 0; 815 } 816 817 /** 818 * sdma_v3_0_start - setup and start the async dma engines 819 * 820 * @adev: amdgpu_device pointer 821 * 822 * Set up the DMA engines and enable them (VI). 823 * Returns 0 for success, error for failure. 824 */ 825 static int sdma_v3_0_start(struct amdgpu_device *adev) 826 { 827 int r; 828 829 if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) { 830 r = sdma_v3_0_load_microcode(adev); 831 if (r) 832 return r; 833 } 834 835 /* disable sdma engine before programing it */ 836 sdma_v3_0_ctx_switch_enable(adev, false); 837 sdma_v3_0_enable(adev, false); 838 839 /* start the gfx rings and rlc compute queues */ 840 r = sdma_v3_0_gfx_resume(adev); 841 if (r) 842 return r; 843 r = sdma_v3_0_rlc_resume(adev); 844 if (r) 845 return r; 846 847 return 0; 848 } 849 850 /** 851 * sdma_v3_0_ring_test_ring - simple async dma engine test 852 * 853 * @ring: amdgpu_ring structure holding ring information 854 * 855 * Test the DMA engine by writing using it to write an 856 * value to memory. (VI). 857 * Returns 0 for success, error for failure. 858 */ 859 static int sdma_v3_0_ring_test_ring(struct amdgpu_ring *ring) 860 { 861 struct amdgpu_device *adev = ring->adev; 862 unsigned i; 863 unsigned index; 864 int r; 865 u32 tmp; 866 u64 gpu_addr; 867 868 r = amdgpu_device_wb_get(adev, &index); 869 if (r) { 870 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r); 871 return r; 872 } 873 874 gpu_addr = adev->wb.gpu_addr + (index * 4); 875 tmp = 0xCAFEDEAD; 876 adev->wb.wb[index] = cpu_to_le32(tmp); 877 878 r = amdgpu_ring_alloc(ring, 5); 879 if (r) { 880 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r); 881 amdgpu_device_wb_free(adev, index); 882 return r; 883 } 884 885 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) | 886 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR)); 887 amdgpu_ring_write(ring, lower_32_bits(gpu_addr)); 888 amdgpu_ring_write(ring, upper_32_bits(gpu_addr)); 889 amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1)); 890 amdgpu_ring_write(ring, 0xDEADBEEF); 891 amdgpu_ring_commit(ring); 892 893 for (i = 0; i < adev->usec_timeout; i++) { 894 tmp = le32_to_cpu(adev->wb.wb[index]); 895 if (tmp == 0xDEADBEEF) 896 break; 897 DRM_UDELAY(1); 898 } 899 900 if (i < adev->usec_timeout) { 901 DRM_DEBUG("ring test on %d succeeded in %d usecs\n", ring->idx, i); 902 } else { 903 DRM_ERROR("amdgpu: ring %d test failed (0x%08X)\n", 904 ring->idx, tmp); 905 r = -EINVAL; 906 } 907 amdgpu_device_wb_free(adev, index); 908 909 return r; 910 } 911 912 /** 913 * sdma_v3_0_ring_test_ib - test an IB on the DMA engine 914 * 915 * @ring: amdgpu_ring structure holding ring information 916 * 917 * Test a simple IB in the DMA ring (VI). 918 * Returns 0 on success, error on failure. 919 */ 920 static int sdma_v3_0_ring_test_ib(struct amdgpu_ring *ring, long timeout) 921 { 922 struct amdgpu_device *adev = ring->adev; 923 struct amdgpu_ib ib; 924 struct dma_fence *f = NULL; 925 unsigned index; 926 u32 tmp = 0; 927 u64 gpu_addr; 928 long r; 929 930 r = amdgpu_device_wb_get(adev, &index); 931 if (r) { 932 dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r); 933 return r; 934 } 935 936 gpu_addr = adev->wb.gpu_addr + (index * 4); 937 tmp = 0xCAFEDEAD; 938 adev->wb.wb[index] = cpu_to_le32(tmp); 939 memset(&ib, 0, sizeof(ib)); 940 r = amdgpu_ib_get(adev, NULL, 256, &ib); 941 if (r) { 942 DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r); 943 goto err0; 944 } 945 946 ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) | 947 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR); 948 ib.ptr[1] = lower_32_bits(gpu_addr); 949 ib.ptr[2] = upper_32_bits(gpu_addr); 950 ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1); 951 ib.ptr[4] = 0xDEADBEEF; 952 ib.ptr[5] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP); 953 ib.ptr[6] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP); 954 ib.ptr[7] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP); 955 ib.length_dw = 8; 956 957 r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f); 958 if (r) 959 goto err1; 960 961 r = dma_fence_wait_timeout(f, false, timeout); 962 if (r == 0) { 963 DRM_ERROR("amdgpu: IB test timed out\n"); 964 r = -ETIMEDOUT; 965 goto err1; 966 } else if (r < 0) { 967 DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r); 968 goto err1; 969 } 970 tmp = le32_to_cpu(adev->wb.wb[index]); 971 if (tmp == 0xDEADBEEF) { 972 DRM_DEBUG("ib test on ring %d succeeded\n", ring->idx); 973 r = 0; 974 } else { 975 DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp); 976 r = -EINVAL; 977 } 978 err1: 979 amdgpu_ib_free(adev, &ib, NULL); 980 dma_fence_put(f); 981 err0: 982 amdgpu_device_wb_free(adev, index); 983 return r; 984 } 985 986 /** 987 * sdma_v3_0_vm_copy_pte - update PTEs by copying them from the GART 988 * 989 * @ib: indirect buffer to fill with commands 990 * @pe: addr of the page entry 991 * @src: src addr to copy from 992 * @count: number of page entries to update 993 * 994 * Update PTEs by copying them from the GART using sDMA (CIK). 995 */ 996 static void sdma_v3_0_vm_copy_pte(struct amdgpu_ib *ib, 997 uint64_t pe, uint64_t src, 998 unsigned count) 999 { 1000 unsigned bytes = count * 8; 1001 1002 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) | 1003 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR); 1004 ib->ptr[ib->length_dw++] = bytes; 1005 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ 1006 ib->ptr[ib->length_dw++] = lower_32_bits(src); 1007 ib->ptr[ib->length_dw++] = upper_32_bits(src); 1008 ib->ptr[ib->length_dw++] = lower_32_bits(pe); 1009 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 1010 } 1011 1012 /** 1013 * sdma_v3_0_vm_write_pte - update PTEs by writing them manually 1014 * 1015 * @ib: indirect buffer to fill with commands 1016 * @pe: addr of the page entry 1017 * @value: dst addr to write into pe 1018 * @count: number of page entries to update 1019 * @incr: increase next addr by incr bytes 1020 * 1021 * Update PTEs by writing them manually using sDMA (CIK). 1022 */ 1023 static void sdma_v3_0_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe, 1024 uint64_t value, unsigned count, 1025 uint32_t incr) 1026 { 1027 unsigned ndw = count * 2; 1028 1029 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) | 1030 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR); 1031 ib->ptr[ib->length_dw++] = lower_32_bits(pe); 1032 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 1033 ib->ptr[ib->length_dw++] = ndw; 1034 for (; ndw > 0; ndw -= 2) { 1035 ib->ptr[ib->length_dw++] = lower_32_bits(value); 1036 ib->ptr[ib->length_dw++] = upper_32_bits(value); 1037 value += incr; 1038 } 1039 } 1040 1041 /** 1042 * sdma_v3_0_vm_set_pte_pde - update the page tables using sDMA 1043 * 1044 * @ib: indirect buffer to fill with commands 1045 * @pe: addr of the page entry 1046 * @addr: dst addr to write into pe 1047 * @count: number of page entries to update 1048 * @incr: increase next addr by incr bytes 1049 * @flags: access flags 1050 * 1051 * Update the page tables using sDMA (CIK). 1052 */ 1053 static void sdma_v3_0_vm_set_pte_pde(struct amdgpu_ib *ib, uint64_t pe, 1054 uint64_t addr, unsigned count, 1055 uint32_t incr, uint64_t flags) 1056 { 1057 /* for physically contiguous pages (vram) */ 1058 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_GEN_PTEPDE); 1059 ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */ 1060 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 1061 ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */ 1062 ib->ptr[ib->length_dw++] = upper_32_bits(flags); 1063 ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */ 1064 ib->ptr[ib->length_dw++] = upper_32_bits(addr); 1065 ib->ptr[ib->length_dw++] = incr; /* increment size */ 1066 ib->ptr[ib->length_dw++] = 0; 1067 ib->ptr[ib->length_dw++] = count; /* number of entries */ 1068 } 1069 1070 /** 1071 * sdma_v3_0_ring_pad_ib - pad the IB to the required number of dw 1072 * 1073 * @ib: indirect buffer to fill with padding 1074 * 1075 */ 1076 static void sdma_v3_0_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib) 1077 { 1078 struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring); 1079 u32 pad_count; 1080 int i; 1081 1082 pad_count = (8 - (ib->length_dw & 0x7)) % 8; 1083 for (i = 0; i < pad_count; i++) 1084 if (sdma && sdma->burst_nop && (i == 0)) 1085 ib->ptr[ib->length_dw++] = 1086 SDMA_PKT_HEADER_OP(SDMA_OP_NOP) | 1087 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1); 1088 else 1089 ib->ptr[ib->length_dw++] = 1090 SDMA_PKT_HEADER_OP(SDMA_OP_NOP); 1091 } 1092 1093 /** 1094 * sdma_v3_0_ring_emit_pipeline_sync - sync the pipeline 1095 * 1096 * @ring: amdgpu_ring pointer 1097 * 1098 * Make sure all previous operations are completed (CIK). 1099 */ 1100 static void sdma_v3_0_ring_emit_pipeline_sync(struct amdgpu_ring *ring) 1101 { 1102 uint32_t seq = ring->fence_drv.sync_seq; 1103 uint64_t addr = ring->fence_drv.gpu_addr; 1104 1105 /* wait for idle */ 1106 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | 1107 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) | 1108 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */ 1109 SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1)); 1110 amdgpu_ring_write(ring, addr & 0xfffffffc); 1111 amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff); 1112 amdgpu_ring_write(ring, seq); /* reference */ 1113 amdgpu_ring_write(ring, 0xfffffff); /* mask */ 1114 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | 1115 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */ 1116 } 1117 1118 /** 1119 * sdma_v3_0_ring_emit_vm_flush - cik vm flush using sDMA 1120 * 1121 * @ring: amdgpu_ring pointer 1122 * @vm: amdgpu_vm pointer 1123 * 1124 * Update the page table base and flush the VM TLB 1125 * using sDMA (VI). 1126 */ 1127 static void sdma_v3_0_ring_emit_vm_flush(struct amdgpu_ring *ring, 1128 unsigned vmid, unsigned pasid, 1129 uint64_t pd_addr) 1130 { 1131 amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pasid, pd_addr); 1132 1133 /* wait for flush */ 1134 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | 1135 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) | 1136 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(0)); /* always */ 1137 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2); 1138 amdgpu_ring_write(ring, 0); 1139 amdgpu_ring_write(ring, 0); /* reference */ 1140 amdgpu_ring_write(ring, 0); /* mask */ 1141 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | 1142 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */ 1143 } 1144 1145 static void sdma_v3_0_ring_emit_wreg(struct amdgpu_ring *ring, 1146 uint32_t reg, uint32_t val) 1147 { 1148 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) | 1149 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf)); 1150 amdgpu_ring_write(ring, reg); 1151 amdgpu_ring_write(ring, val); 1152 } 1153 1154 static int sdma_v3_0_early_init(void *handle) 1155 { 1156 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1157 1158 switch (adev->asic_type) { 1159 case CHIP_STONEY: 1160 adev->sdma.num_instances = 1; 1161 break; 1162 default: 1163 adev->sdma.num_instances = SDMA_MAX_INSTANCE; 1164 break; 1165 } 1166 1167 sdma_v3_0_set_ring_funcs(adev); 1168 sdma_v3_0_set_buffer_funcs(adev); 1169 sdma_v3_0_set_vm_pte_funcs(adev); 1170 sdma_v3_0_set_irq_funcs(adev); 1171 1172 return 0; 1173 } 1174 1175 static int sdma_v3_0_sw_init(void *handle) 1176 { 1177 struct amdgpu_ring *ring; 1178 int r, i; 1179 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1180 1181 /* SDMA trap event */ 1182 r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 224, 1183 &adev->sdma.trap_irq); 1184 if (r) 1185 return r; 1186 1187 /* SDMA Privileged inst */ 1188 r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 241, 1189 &adev->sdma.illegal_inst_irq); 1190 if (r) 1191 return r; 1192 1193 /* SDMA Privileged inst */ 1194 r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 247, 1195 &adev->sdma.illegal_inst_irq); 1196 if (r) 1197 return r; 1198 1199 r = sdma_v3_0_init_microcode(adev); 1200 if (r) { 1201 DRM_ERROR("Failed to load sdma firmware!\n"); 1202 return r; 1203 } 1204 1205 for (i = 0; i < adev->sdma.num_instances; i++) { 1206 ring = &adev->sdma.instance[i].ring; 1207 ring->ring_obj = NULL; 1208 if (!amdgpu_sriov_vf(adev)) { 1209 ring->use_doorbell = true; 1210 ring->doorbell_index = (i == 0) ? 1211 AMDGPU_DOORBELL_sDMA_ENGINE0 : AMDGPU_DOORBELL_sDMA_ENGINE1; 1212 } else { 1213 ring->use_pollmem = true; 1214 } 1215 1216 sprintf(ring->name, "sdma%d", i); 1217 r = amdgpu_ring_init(adev, ring, 1024, 1218 &adev->sdma.trap_irq, 1219 (i == 0) ? 1220 AMDGPU_SDMA_IRQ_TRAP0 : 1221 AMDGPU_SDMA_IRQ_TRAP1); 1222 if (r) 1223 return r; 1224 } 1225 1226 return r; 1227 } 1228 1229 static int sdma_v3_0_sw_fini(void *handle) 1230 { 1231 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1232 int i; 1233 1234 for (i = 0; i < adev->sdma.num_instances; i++) 1235 amdgpu_ring_fini(&adev->sdma.instance[i].ring); 1236 1237 sdma_v3_0_free_microcode(adev); 1238 return 0; 1239 } 1240 1241 static int sdma_v3_0_hw_init(void *handle) 1242 { 1243 int r; 1244 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1245 1246 sdma_v3_0_init_golden_registers(adev); 1247 1248 r = sdma_v3_0_start(adev); 1249 if (r) 1250 return r; 1251 1252 return r; 1253 } 1254 1255 static int sdma_v3_0_hw_fini(void *handle) 1256 { 1257 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1258 1259 sdma_v3_0_ctx_switch_enable(adev, false); 1260 sdma_v3_0_enable(adev, false); 1261 1262 return 0; 1263 } 1264 1265 static int sdma_v3_0_suspend(void *handle) 1266 { 1267 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1268 1269 return sdma_v3_0_hw_fini(adev); 1270 } 1271 1272 static int sdma_v3_0_resume(void *handle) 1273 { 1274 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1275 1276 return sdma_v3_0_hw_init(adev); 1277 } 1278 1279 static bool sdma_v3_0_is_idle(void *handle) 1280 { 1281 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1282 u32 tmp = RREG32(mmSRBM_STATUS2); 1283 1284 if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK | 1285 SRBM_STATUS2__SDMA1_BUSY_MASK)) 1286 return false; 1287 1288 return true; 1289 } 1290 1291 static int sdma_v3_0_wait_for_idle(void *handle) 1292 { 1293 unsigned i; 1294 u32 tmp; 1295 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1296 1297 for (i = 0; i < adev->usec_timeout; i++) { 1298 tmp = RREG32(mmSRBM_STATUS2) & (SRBM_STATUS2__SDMA_BUSY_MASK | 1299 SRBM_STATUS2__SDMA1_BUSY_MASK); 1300 1301 if (!tmp) 1302 return 0; 1303 udelay(1); 1304 } 1305 return -ETIMEDOUT; 1306 } 1307 1308 static bool sdma_v3_0_check_soft_reset(void *handle) 1309 { 1310 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1311 u32 srbm_soft_reset = 0; 1312 u32 tmp = RREG32(mmSRBM_STATUS2); 1313 1314 if ((tmp & SRBM_STATUS2__SDMA_BUSY_MASK) || 1315 (tmp & SRBM_STATUS2__SDMA1_BUSY_MASK)) { 1316 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK; 1317 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK; 1318 } 1319 1320 if (srbm_soft_reset) { 1321 adev->sdma.srbm_soft_reset = srbm_soft_reset; 1322 return true; 1323 } else { 1324 adev->sdma.srbm_soft_reset = 0; 1325 return false; 1326 } 1327 } 1328 1329 static int sdma_v3_0_pre_soft_reset(void *handle) 1330 { 1331 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1332 u32 srbm_soft_reset = 0; 1333 1334 if (!adev->sdma.srbm_soft_reset) 1335 return 0; 1336 1337 srbm_soft_reset = adev->sdma.srbm_soft_reset; 1338 1339 if (REG_GET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_SDMA) || 1340 REG_GET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_SDMA1)) { 1341 sdma_v3_0_ctx_switch_enable(adev, false); 1342 sdma_v3_0_enable(adev, false); 1343 } 1344 1345 return 0; 1346 } 1347 1348 static int sdma_v3_0_post_soft_reset(void *handle) 1349 { 1350 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1351 u32 srbm_soft_reset = 0; 1352 1353 if (!adev->sdma.srbm_soft_reset) 1354 return 0; 1355 1356 srbm_soft_reset = adev->sdma.srbm_soft_reset; 1357 1358 if (REG_GET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_SDMA) || 1359 REG_GET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_SDMA1)) { 1360 sdma_v3_0_gfx_resume(adev); 1361 sdma_v3_0_rlc_resume(adev); 1362 } 1363 1364 return 0; 1365 } 1366 1367 static int sdma_v3_0_soft_reset(void *handle) 1368 { 1369 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1370 u32 srbm_soft_reset = 0; 1371 u32 tmp; 1372 1373 if (!adev->sdma.srbm_soft_reset) 1374 return 0; 1375 1376 srbm_soft_reset = adev->sdma.srbm_soft_reset; 1377 1378 if (srbm_soft_reset) { 1379 tmp = RREG32(mmSRBM_SOFT_RESET); 1380 tmp |= srbm_soft_reset; 1381 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp); 1382 WREG32(mmSRBM_SOFT_RESET, tmp); 1383 tmp = RREG32(mmSRBM_SOFT_RESET); 1384 1385 udelay(50); 1386 1387 tmp &= ~srbm_soft_reset; 1388 WREG32(mmSRBM_SOFT_RESET, tmp); 1389 tmp = RREG32(mmSRBM_SOFT_RESET); 1390 1391 /* Wait a little for things to settle down */ 1392 udelay(50); 1393 } 1394 1395 return 0; 1396 } 1397 1398 static int sdma_v3_0_set_trap_irq_state(struct amdgpu_device *adev, 1399 struct amdgpu_irq_src *source, 1400 unsigned type, 1401 enum amdgpu_interrupt_state state) 1402 { 1403 u32 sdma_cntl; 1404 1405 switch (type) { 1406 case AMDGPU_SDMA_IRQ_TRAP0: 1407 switch (state) { 1408 case AMDGPU_IRQ_STATE_DISABLE: 1409 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET); 1410 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0); 1411 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl); 1412 break; 1413 case AMDGPU_IRQ_STATE_ENABLE: 1414 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET); 1415 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1); 1416 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl); 1417 break; 1418 default: 1419 break; 1420 } 1421 break; 1422 case AMDGPU_SDMA_IRQ_TRAP1: 1423 switch (state) { 1424 case AMDGPU_IRQ_STATE_DISABLE: 1425 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET); 1426 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0); 1427 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl); 1428 break; 1429 case AMDGPU_IRQ_STATE_ENABLE: 1430 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET); 1431 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1); 1432 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl); 1433 break; 1434 default: 1435 break; 1436 } 1437 break; 1438 default: 1439 break; 1440 } 1441 return 0; 1442 } 1443 1444 static int sdma_v3_0_process_trap_irq(struct amdgpu_device *adev, 1445 struct amdgpu_irq_src *source, 1446 struct amdgpu_iv_entry *entry) 1447 { 1448 u8 instance_id, queue_id; 1449 1450 instance_id = (entry->ring_id & 0x3) >> 0; 1451 queue_id = (entry->ring_id & 0xc) >> 2; 1452 DRM_DEBUG("IH: SDMA trap\n"); 1453 switch (instance_id) { 1454 case 0: 1455 switch (queue_id) { 1456 case 0: 1457 amdgpu_fence_process(&adev->sdma.instance[0].ring); 1458 break; 1459 case 1: 1460 /* XXX compute */ 1461 break; 1462 case 2: 1463 /* XXX compute */ 1464 break; 1465 } 1466 break; 1467 case 1: 1468 switch (queue_id) { 1469 case 0: 1470 amdgpu_fence_process(&adev->sdma.instance[1].ring); 1471 break; 1472 case 1: 1473 /* XXX compute */ 1474 break; 1475 case 2: 1476 /* XXX compute */ 1477 break; 1478 } 1479 break; 1480 } 1481 return 0; 1482 } 1483 1484 static int sdma_v3_0_process_illegal_inst_irq(struct amdgpu_device *adev, 1485 struct amdgpu_irq_src *source, 1486 struct amdgpu_iv_entry *entry) 1487 { 1488 DRM_ERROR("Illegal instruction in SDMA command stream\n"); 1489 schedule_work(&adev->reset_work); 1490 return 0; 1491 } 1492 1493 static void sdma_v3_0_update_sdma_medium_grain_clock_gating( 1494 struct amdgpu_device *adev, 1495 bool enable) 1496 { 1497 uint32_t temp, data; 1498 int i; 1499 1500 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) { 1501 for (i = 0; i < adev->sdma.num_instances; i++) { 1502 temp = data = RREG32(mmSDMA0_CLK_CTRL + sdma_offsets[i]); 1503 data &= ~(SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK | 1504 SDMA0_CLK_CTRL__SOFT_OVERRIDE6_MASK | 1505 SDMA0_CLK_CTRL__SOFT_OVERRIDE5_MASK | 1506 SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK | 1507 SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK | 1508 SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK | 1509 SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK | 1510 SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK); 1511 if (data != temp) 1512 WREG32(mmSDMA0_CLK_CTRL + sdma_offsets[i], data); 1513 } 1514 } else { 1515 for (i = 0; i < adev->sdma.num_instances; i++) { 1516 temp = data = RREG32(mmSDMA0_CLK_CTRL + sdma_offsets[i]); 1517 data |= SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK | 1518 SDMA0_CLK_CTRL__SOFT_OVERRIDE6_MASK | 1519 SDMA0_CLK_CTRL__SOFT_OVERRIDE5_MASK | 1520 SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK | 1521 SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK | 1522 SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK | 1523 SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK | 1524 SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK; 1525 1526 if (data != temp) 1527 WREG32(mmSDMA0_CLK_CTRL + sdma_offsets[i], data); 1528 } 1529 } 1530 } 1531 1532 static void sdma_v3_0_update_sdma_medium_grain_light_sleep( 1533 struct amdgpu_device *adev, 1534 bool enable) 1535 { 1536 uint32_t temp, data; 1537 int i; 1538 1539 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) { 1540 for (i = 0; i < adev->sdma.num_instances; i++) { 1541 temp = data = RREG32(mmSDMA0_POWER_CNTL + sdma_offsets[i]); 1542 data |= SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK; 1543 1544 if (temp != data) 1545 WREG32(mmSDMA0_POWER_CNTL + sdma_offsets[i], data); 1546 } 1547 } else { 1548 for (i = 0; i < adev->sdma.num_instances; i++) { 1549 temp = data = RREG32(mmSDMA0_POWER_CNTL + sdma_offsets[i]); 1550 data &= ~SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK; 1551 1552 if (temp != data) 1553 WREG32(mmSDMA0_POWER_CNTL + sdma_offsets[i], data); 1554 } 1555 } 1556 } 1557 1558 static int sdma_v3_0_set_clockgating_state(void *handle, 1559 enum amd_clockgating_state state) 1560 { 1561 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1562 1563 if (amdgpu_sriov_vf(adev)) 1564 return 0; 1565 1566 switch (adev->asic_type) { 1567 case CHIP_FIJI: 1568 case CHIP_CARRIZO: 1569 case CHIP_STONEY: 1570 sdma_v3_0_update_sdma_medium_grain_clock_gating(adev, 1571 state == AMD_CG_STATE_GATE); 1572 sdma_v3_0_update_sdma_medium_grain_light_sleep(adev, 1573 state == AMD_CG_STATE_GATE); 1574 break; 1575 default: 1576 break; 1577 } 1578 return 0; 1579 } 1580 1581 static int sdma_v3_0_set_powergating_state(void *handle, 1582 enum amd_powergating_state state) 1583 { 1584 return 0; 1585 } 1586 1587 static void sdma_v3_0_get_clockgating_state(void *handle, u32 *flags) 1588 { 1589 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1590 int data; 1591 1592 if (amdgpu_sriov_vf(adev)) 1593 *flags = 0; 1594 1595 /* AMD_CG_SUPPORT_SDMA_MGCG */ 1596 data = RREG32(mmSDMA0_CLK_CTRL + sdma_offsets[0]); 1597 if (!(data & SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK)) 1598 *flags |= AMD_CG_SUPPORT_SDMA_MGCG; 1599 1600 /* AMD_CG_SUPPORT_SDMA_LS */ 1601 data = RREG32(mmSDMA0_POWER_CNTL + sdma_offsets[0]); 1602 if (data & SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK) 1603 *flags |= AMD_CG_SUPPORT_SDMA_LS; 1604 } 1605 1606 static const struct amd_ip_funcs sdma_v3_0_ip_funcs = { 1607 .name = "sdma_v3_0", 1608 .early_init = sdma_v3_0_early_init, 1609 .late_init = NULL, 1610 .sw_init = sdma_v3_0_sw_init, 1611 .sw_fini = sdma_v3_0_sw_fini, 1612 .hw_init = sdma_v3_0_hw_init, 1613 .hw_fini = sdma_v3_0_hw_fini, 1614 .suspend = sdma_v3_0_suspend, 1615 .resume = sdma_v3_0_resume, 1616 .is_idle = sdma_v3_0_is_idle, 1617 .wait_for_idle = sdma_v3_0_wait_for_idle, 1618 .check_soft_reset = sdma_v3_0_check_soft_reset, 1619 .pre_soft_reset = sdma_v3_0_pre_soft_reset, 1620 .post_soft_reset = sdma_v3_0_post_soft_reset, 1621 .soft_reset = sdma_v3_0_soft_reset, 1622 .set_clockgating_state = sdma_v3_0_set_clockgating_state, 1623 .set_powergating_state = sdma_v3_0_set_powergating_state, 1624 .get_clockgating_state = sdma_v3_0_get_clockgating_state, 1625 }; 1626 1627 static const struct amdgpu_ring_funcs sdma_v3_0_ring_funcs = { 1628 .type = AMDGPU_RING_TYPE_SDMA, 1629 .align_mask = 0xf, 1630 .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP), 1631 .support_64bit_ptrs = false, 1632 .get_rptr = sdma_v3_0_ring_get_rptr, 1633 .get_wptr = sdma_v3_0_ring_get_wptr, 1634 .set_wptr = sdma_v3_0_ring_set_wptr, 1635 .emit_frame_size = 1636 6 + /* sdma_v3_0_ring_emit_hdp_flush */ 1637 3 + /* sdma_v3_0_ring_emit_hdp_invalidate */ 1638 6 + /* sdma_v3_0_ring_emit_pipeline_sync */ 1639 12 + /* sdma_v3_0_ring_emit_vm_flush */ 1640 10 + 10 + 10, /* sdma_v3_0_ring_emit_fence x3 for user fence, vm fence */ 1641 .emit_ib_size = 7 + 6, /* sdma_v3_0_ring_emit_ib */ 1642 .emit_ib = sdma_v3_0_ring_emit_ib, 1643 .emit_fence = sdma_v3_0_ring_emit_fence, 1644 .emit_pipeline_sync = sdma_v3_0_ring_emit_pipeline_sync, 1645 .emit_vm_flush = sdma_v3_0_ring_emit_vm_flush, 1646 .emit_hdp_flush = sdma_v3_0_ring_emit_hdp_flush, 1647 .emit_hdp_invalidate = sdma_v3_0_ring_emit_hdp_invalidate, 1648 .test_ring = sdma_v3_0_ring_test_ring, 1649 .test_ib = sdma_v3_0_ring_test_ib, 1650 .insert_nop = sdma_v3_0_ring_insert_nop, 1651 .pad_ib = sdma_v3_0_ring_pad_ib, 1652 .emit_wreg = sdma_v3_0_ring_emit_wreg, 1653 }; 1654 1655 static void sdma_v3_0_set_ring_funcs(struct amdgpu_device *adev) 1656 { 1657 int i; 1658 1659 for (i = 0; i < adev->sdma.num_instances; i++) 1660 adev->sdma.instance[i].ring.funcs = &sdma_v3_0_ring_funcs; 1661 } 1662 1663 static const struct amdgpu_irq_src_funcs sdma_v3_0_trap_irq_funcs = { 1664 .set = sdma_v3_0_set_trap_irq_state, 1665 .process = sdma_v3_0_process_trap_irq, 1666 }; 1667 1668 static const struct amdgpu_irq_src_funcs sdma_v3_0_illegal_inst_irq_funcs = { 1669 .process = sdma_v3_0_process_illegal_inst_irq, 1670 }; 1671 1672 static void sdma_v3_0_set_irq_funcs(struct amdgpu_device *adev) 1673 { 1674 adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST; 1675 adev->sdma.trap_irq.funcs = &sdma_v3_0_trap_irq_funcs; 1676 adev->sdma.illegal_inst_irq.funcs = &sdma_v3_0_illegal_inst_irq_funcs; 1677 } 1678 1679 /** 1680 * sdma_v3_0_emit_copy_buffer - copy buffer using the sDMA engine 1681 * 1682 * @ring: amdgpu_ring structure holding ring information 1683 * @src_offset: src GPU address 1684 * @dst_offset: dst GPU address 1685 * @byte_count: number of bytes to xfer 1686 * 1687 * Copy GPU buffers using the DMA engine (VI). 1688 * Used by the amdgpu ttm implementation to move pages if 1689 * registered as the asic copy callback. 1690 */ 1691 static void sdma_v3_0_emit_copy_buffer(struct amdgpu_ib *ib, 1692 uint64_t src_offset, 1693 uint64_t dst_offset, 1694 uint32_t byte_count) 1695 { 1696 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) | 1697 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR); 1698 ib->ptr[ib->length_dw++] = byte_count; 1699 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ 1700 ib->ptr[ib->length_dw++] = lower_32_bits(src_offset); 1701 ib->ptr[ib->length_dw++] = upper_32_bits(src_offset); 1702 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset); 1703 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset); 1704 } 1705 1706 /** 1707 * sdma_v3_0_emit_fill_buffer - fill buffer using the sDMA engine 1708 * 1709 * @ring: amdgpu_ring structure holding ring information 1710 * @src_data: value to write to buffer 1711 * @dst_offset: dst GPU address 1712 * @byte_count: number of bytes to xfer 1713 * 1714 * Fill GPU buffers using the DMA engine (VI). 1715 */ 1716 static void sdma_v3_0_emit_fill_buffer(struct amdgpu_ib *ib, 1717 uint32_t src_data, 1718 uint64_t dst_offset, 1719 uint32_t byte_count) 1720 { 1721 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL); 1722 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset); 1723 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset); 1724 ib->ptr[ib->length_dw++] = src_data; 1725 ib->ptr[ib->length_dw++] = byte_count; 1726 } 1727 1728 static const struct amdgpu_buffer_funcs sdma_v3_0_buffer_funcs = { 1729 .copy_max_bytes = 0x3fffe0, /* not 0x3fffff due to HW limitation */ 1730 .copy_num_dw = 7, 1731 .emit_copy_buffer = sdma_v3_0_emit_copy_buffer, 1732 1733 .fill_max_bytes = 0x3fffe0, /* not 0x3fffff due to HW limitation */ 1734 .fill_num_dw = 5, 1735 .emit_fill_buffer = sdma_v3_0_emit_fill_buffer, 1736 }; 1737 1738 static void sdma_v3_0_set_buffer_funcs(struct amdgpu_device *adev) 1739 { 1740 if (adev->mman.buffer_funcs == NULL) { 1741 adev->mman.buffer_funcs = &sdma_v3_0_buffer_funcs; 1742 adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring; 1743 } 1744 } 1745 1746 static const struct amdgpu_vm_pte_funcs sdma_v3_0_vm_pte_funcs = { 1747 .copy_pte_num_dw = 7, 1748 .copy_pte = sdma_v3_0_vm_copy_pte, 1749 1750 .write_pte = sdma_v3_0_vm_write_pte, 1751 1752 /* not 0x3fffff due to HW limitation */ 1753 .set_max_nums_pte_pde = 0x3fffe0 >> 3, 1754 .set_pte_pde_num_dw = 10, 1755 .set_pte_pde = sdma_v3_0_vm_set_pte_pde, 1756 }; 1757 1758 static void sdma_v3_0_set_vm_pte_funcs(struct amdgpu_device *adev) 1759 { 1760 unsigned i; 1761 1762 if (adev->vm_manager.vm_pte_funcs == NULL) { 1763 adev->vm_manager.vm_pte_funcs = &sdma_v3_0_vm_pte_funcs; 1764 for (i = 0; i < adev->sdma.num_instances; i++) 1765 adev->vm_manager.vm_pte_rings[i] = 1766 &adev->sdma.instance[i].ring; 1767 1768 adev->vm_manager.vm_pte_num_rings = adev->sdma.num_instances; 1769 } 1770 } 1771 1772 const struct amdgpu_ip_block_version sdma_v3_0_ip_block = 1773 { 1774 .type = AMD_IP_BLOCK_TYPE_SDMA, 1775 .major = 3, 1776 .minor = 0, 1777 .rev = 0, 1778 .funcs = &sdma_v3_0_ip_funcs, 1779 }; 1780 1781 const struct amdgpu_ip_block_version sdma_v3_1_ip_block = 1782 { 1783 .type = AMD_IP_BLOCK_TYPE_SDMA, 1784 .major = 3, 1785 .minor = 1, 1786 .rev = 0, 1787 .funcs = &sdma_v3_0_ip_funcs, 1788 }; 1789