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 25 #include <linux/delay.h> 26 #include <linux/firmware.h> 27 #include <linux/module.h> 28 29 #include "amdgpu.h" 30 #include "amdgpu_ucode.h" 31 #include "amdgpu_trace.h" 32 #include "vi.h" 33 #include "vid.h" 34 35 #include "oss/oss_2_4_d.h" 36 #include "oss/oss_2_4_sh_mask.h" 37 38 #include "gmc/gmc_7_1_d.h" 39 #include "gmc/gmc_7_1_sh_mask.h" 40 41 #include "gca/gfx_8_0_d.h" 42 #include "gca/gfx_8_0_enum.h" 43 #include "gca/gfx_8_0_sh_mask.h" 44 45 #include "bif/bif_5_0_d.h" 46 #include "bif/bif_5_0_sh_mask.h" 47 48 #include "iceland_sdma_pkt_open.h" 49 50 #include "ivsrcid/ivsrcid_vislands30.h" 51 52 static void sdma_v2_4_set_ring_funcs(struct amdgpu_device *adev); 53 static void sdma_v2_4_set_buffer_funcs(struct amdgpu_device *adev); 54 static void sdma_v2_4_set_vm_pte_funcs(struct amdgpu_device *adev); 55 static void sdma_v2_4_set_irq_funcs(struct amdgpu_device *adev); 56 57 MODULE_FIRMWARE("amdgpu/topaz_sdma.bin"); 58 MODULE_FIRMWARE("amdgpu/topaz_sdma1.bin"); 59 60 static const u32 sdma_offsets[SDMA_MAX_INSTANCE] = 61 { 62 SDMA0_REGISTER_OFFSET, 63 SDMA1_REGISTER_OFFSET 64 }; 65 66 static const u32 golden_settings_iceland_a11[] = 67 { 68 mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007, 69 mmSDMA0_CLK_CTRL, 0xff000fff, 0x00000000, 70 mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007, 71 mmSDMA1_CLK_CTRL, 0xff000fff, 0x00000000, 72 }; 73 74 static const u32 iceland_mgcg_cgcg_init[] = 75 { 76 mmSDMA0_CLK_CTRL, 0xff000ff0, 0x00000100, 77 mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100 78 }; 79 80 /* 81 * sDMA - System DMA 82 * Starting with CIK, the GPU has new asynchronous 83 * DMA engines. These engines are used for compute 84 * and gfx. There are two DMA engines (SDMA0, SDMA1) 85 * and each one supports 1 ring buffer used for gfx 86 * and 2 queues used for compute. 87 * 88 * The programming model is very similar to the CP 89 * (ring buffer, IBs, etc.), but sDMA has it's own 90 * packet format that is different from the PM4 format 91 * used by the CP. sDMA supports copying data, writing 92 * embedded data, solid fills, and a number of other 93 * things. It also has support for tiling/detiling of 94 * buffers. 95 */ 96 97 static void sdma_v2_4_init_golden_registers(struct amdgpu_device *adev) 98 { 99 switch (adev->asic_type) { 100 case CHIP_TOPAZ: 101 amdgpu_device_program_register_sequence(adev, 102 iceland_mgcg_cgcg_init, 103 ARRAY_SIZE(iceland_mgcg_cgcg_init)); 104 amdgpu_device_program_register_sequence(adev, 105 golden_settings_iceland_a11, 106 ARRAY_SIZE(golden_settings_iceland_a11)); 107 break; 108 default: 109 break; 110 } 111 } 112 113 static void sdma_v2_4_free_microcode(struct amdgpu_device *adev) 114 { 115 int i; 116 117 for (i = 0; i < adev->sdma.num_instances; i++) 118 amdgpu_ucode_release(&adev->sdma.instance[i].fw); 119 } 120 121 /** 122 * sdma_v2_4_init_microcode - load ucode images from disk 123 * 124 * @adev: amdgpu_device pointer 125 * 126 * Use the firmware interface to load the ucode images into 127 * the driver (not loaded into hw). 128 * Returns 0 on success, error on failure. 129 */ 130 static int sdma_v2_4_init_microcode(struct amdgpu_device *adev) 131 { 132 const char *chip_name; 133 char fw_name[30]; 134 int err = 0, i; 135 struct amdgpu_firmware_info *info = NULL; 136 const struct common_firmware_header *header = NULL; 137 const struct sdma_firmware_header_v1_0 *hdr; 138 139 DRM_DEBUG("\n"); 140 141 switch (adev->asic_type) { 142 case CHIP_TOPAZ: 143 chip_name = "topaz"; 144 break; 145 default: BUG(); 146 } 147 148 for (i = 0; i < adev->sdma.num_instances; i++) { 149 if (i == 0) 150 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name); 151 else 152 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma1.bin", chip_name); 153 err = amdgpu_ucode_request(adev, &adev->sdma.instance[i].fw, fw_name); 154 if (err) 155 goto out; 156 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data; 157 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version); 158 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version); 159 if (adev->sdma.instance[i].feature_version >= 20) 160 adev->sdma.instance[i].burst_nop = true; 161 162 if (adev->firmware.load_type == AMDGPU_FW_LOAD_SMU) { 163 info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i]; 164 info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i; 165 info->fw = adev->sdma.instance[i].fw; 166 header = (const struct common_firmware_header *)info->fw->data; 167 adev->firmware.fw_size += 168 ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE); 169 } 170 } 171 172 out: 173 if (err) { 174 pr_err("sdma_v2_4: Failed to load firmware \"%s\"\n", fw_name); 175 for (i = 0; i < adev->sdma.num_instances; i++) 176 amdgpu_ucode_release(&adev->sdma.instance[i].fw); 177 } 178 return err; 179 } 180 181 /** 182 * sdma_v2_4_ring_get_rptr - get the current read pointer 183 * 184 * @ring: amdgpu ring pointer 185 * 186 * Get the current rptr from the hardware (VI+). 187 */ 188 static uint64_t sdma_v2_4_ring_get_rptr(struct amdgpu_ring *ring) 189 { 190 /* XXX check if swapping is necessary on BE */ 191 return *ring->rptr_cpu_addr >> 2; 192 } 193 194 /** 195 * sdma_v2_4_ring_get_wptr - get the current write pointer 196 * 197 * @ring: amdgpu ring pointer 198 * 199 * Get the current wptr from the hardware (VI+). 200 */ 201 static uint64_t sdma_v2_4_ring_get_wptr(struct amdgpu_ring *ring) 202 { 203 struct amdgpu_device *adev = ring->adev; 204 u32 wptr = RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[ring->me]) >> 2; 205 206 return wptr; 207 } 208 209 /** 210 * sdma_v2_4_ring_set_wptr - commit the write pointer 211 * 212 * @ring: amdgpu ring pointer 213 * 214 * Write the wptr back to the hardware (VI+). 215 */ 216 static void sdma_v2_4_ring_set_wptr(struct amdgpu_ring *ring) 217 { 218 struct amdgpu_device *adev = ring->adev; 219 220 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[ring->me], ring->wptr << 2); 221 } 222 223 static void sdma_v2_4_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count) 224 { 225 struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring); 226 int i; 227 228 for (i = 0; i < count; i++) 229 if (sdma && sdma->burst_nop && (i == 0)) 230 amdgpu_ring_write(ring, ring->funcs->nop | 231 SDMA_PKT_NOP_HEADER_COUNT(count - 1)); 232 else 233 amdgpu_ring_write(ring, ring->funcs->nop); 234 } 235 236 /** 237 * sdma_v2_4_ring_emit_ib - Schedule an IB on the DMA engine 238 * 239 * @ring: amdgpu ring pointer 240 * @job: job to retrieve vmid from 241 * @ib: IB object to schedule 242 * @flags: unused 243 * 244 * Schedule an IB in the DMA ring (VI). 245 */ 246 static void sdma_v2_4_ring_emit_ib(struct amdgpu_ring *ring, 247 struct amdgpu_job *job, 248 struct amdgpu_ib *ib, 249 uint32_t flags) 250 { 251 unsigned vmid = AMDGPU_JOB_GET_VMID(job); 252 253 /* IB packet must end on a 8 DW boundary */ 254 sdma_v2_4_ring_insert_nop(ring, (2 - lower_32_bits(ring->wptr)) & 7); 255 256 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) | 257 SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf)); 258 /* base must be 32 byte aligned */ 259 amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0); 260 amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr)); 261 amdgpu_ring_write(ring, ib->length_dw); 262 amdgpu_ring_write(ring, 0); 263 amdgpu_ring_write(ring, 0); 264 265 } 266 267 /** 268 * sdma_v2_4_ring_emit_hdp_flush - emit an hdp flush on the DMA ring 269 * 270 * @ring: amdgpu ring pointer 271 * 272 * Emit an hdp flush packet on the requested DMA ring. 273 */ 274 static void sdma_v2_4_ring_emit_hdp_flush(struct amdgpu_ring *ring) 275 { 276 u32 ref_and_mask = 0; 277 278 if (ring->me == 0) 279 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA0, 1); 280 else 281 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA1, 1); 282 283 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | 284 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) | 285 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */ 286 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_DONE << 2); 287 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_REQ << 2); 288 amdgpu_ring_write(ring, ref_and_mask); /* reference */ 289 amdgpu_ring_write(ring, ref_and_mask); /* mask */ 290 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | 291 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */ 292 } 293 294 /** 295 * sdma_v2_4_ring_emit_fence - emit a fence on the DMA ring 296 * 297 * @ring: amdgpu ring pointer 298 * @addr: address 299 * @seq: sequence number 300 * @flags: fence related flags 301 * 302 * Add a DMA fence packet to the ring to write 303 * the fence seq number and DMA trap packet to generate 304 * an interrupt if needed (VI). 305 */ 306 static void sdma_v2_4_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq, 307 unsigned flags) 308 { 309 bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT; 310 /* write the fence */ 311 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE)); 312 amdgpu_ring_write(ring, lower_32_bits(addr)); 313 amdgpu_ring_write(ring, upper_32_bits(addr)); 314 amdgpu_ring_write(ring, lower_32_bits(seq)); 315 316 /* optionally write high bits as well */ 317 if (write64bit) { 318 addr += 4; 319 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE)); 320 amdgpu_ring_write(ring, lower_32_bits(addr)); 321 amdgpu_ring_write(ring, upper_32_bits(addr)); 322 amdgpu_ring_write(ring, upper_32_bits(seq)); 323 } 324 325 /* generate an interrupt */ 326 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP)); 327 amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0)); 328 } 329 330 /** 331 * sdma_v2_4_gfx_stop - stop the gfx async dma engines 332 * 333 * @adev: amdgpu_device pointer 334 * 335 * Stop the gfx async dma ring buffers (VI). 336 */ 337 static void sdma_v2_4_gfx_stop(struct amdgpu_device *adev) 338 { 339 u32 rb_cntl, ib_cntl; 340 int i; 341 342 amdgpu_sdma_unset_buffer_funcs_helper(adev); 343 344 for (i = 0; i < adev->sdma.num_instances; i++) { 345 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]); 346 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0); 347 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); 348 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]); 349 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0); 350 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl); 351 } 352 } 353 354 /** 355 * sdma_v2_4_rlc_stop - stop the compute async dma engines 356 * 357 * @adev: amdgpu_device pointer 358 * 359 * Stop the compute async dma queues (VI). 360 */ 361 static void sdma_v2_4_rlc_stop(struct amdgpu_device *adev) 362 { 363 /* XXX todo */ 364 } 365 366 /** 367 * sdma_v2_4_enable - stop the async dma engines 368 * 369 * @adev: amdgpu_device pointer 370 * @enable: enable/disable the DMA MEs. 371 * 372 * Halt or unhalt the async dma engines (VI). 373 */ 374 static void sdma_v2_4_enable(struct amdgpu_device *adev, bool enable) 375 { 376 u32 f32_cntl; 377 int i; 378 379 if (!enable) { 380 sdma_v2_4_gfx_stop(adev); 381 sdma_v2_4_rlc_stop(adev); 382 } 383 384 for (i = 0; i < adev->sdma.num_instances; i++) { 385 f32_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]); 386 if (enable) 387 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 0); 388 else 389 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 1); 390 WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], f32_cntl); 391 } 392 } 393 394 /** 395 * sdma_v2_4_gfx_resume - setup and start the async dma engines 396 * 397 * @adev: amdgpu_device pointer 398 * 399 * Set up the gfx DMA ring buffers and enable them (VI). 400 * Returns 0 for success, error for failure. 401 */ 402 static int sdma_v2_4_gfx_resume(struct amdgpu_device *adev) 403 { 404 struct amdgpu_ring *ring; 405 u32 rb_cntl, ib_cntl; 406 u32 rb_bufsz; 407 int i, j, r; 408 409 for (i = 0; i < adev->sdma.num_instances; i++) { 410 ring = &adev->sdma.instance[i].ring; 411 412 mutex_lock(&adev->srbm_mutex); 413 for (j = 0; j < 16; j++) { 414 vi_srbm_select(adev, 0, 0, 0, j); 415 /* SDMA GFX */ 416 WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0); 417 WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0); 418 } 419 vi_srbm_select(adev, 0, 0, 0, 0); 420 mutex_unlock(&adev->srbm_mutex); 421 422 WREG32(mmSDMA0_TILING_CONFIG + sdma_offsets[i], 423 adev->gfx.config.gb_addr_config & 0x70); 424 425 WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0); 426 427 /* Set ring buffer size in dwords */ 428 rb_bufsz = order_base_2(ring->ring_size / 4); 429 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]); 430 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz); 431 #ifdef __BIG_ENDIAN 432 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1); 433 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, 434 RPTR_WRITEBACK_SWAP_ENABLE, 1); 435 #endif 436 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); 437 438 /* Initialize the ring buffer's read and write pointers */ 439 WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0); 440 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], 0); 441 WREG32(mmSDMA0_GFX_IB_RPTR + sdma_offsets[i], 0); 442 WREG32(mmSDMA0_GFX_IB_OFFSET + sdma_offsets[i], 0); 443 444 /* set the wb address whether it's enabled or not */ 445 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i], 446 upper_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFF); 447 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i], 448 lower_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFC); 449 450 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1); 451 452 WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8); 453 WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40); 454 455 ring->wptr = 0; 456 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], ring->wptr << 2); 457 458 /* enable DMA RB */ 459 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1); 460 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); 461 462 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]); 463 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1); 464 #ifdef __BIG_ENDIAN 465 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1); 466 #endif 467 /* enable DMA IBs */ 468 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl); 469 } 470 471 sdma_v2_4_enable(adev, true); 472 for (i = 0; i < adev->sdma.num_instances; i++) { 473 ring = &adev->sdma.instance[i].ring; 474 r = amdgpu_ring_test_helper(ring); 475 if (r) 476 return r; 477 478 if (adev->mman.buffer_funcs_ring == ring) 479 amdgpu_ttm_set_buffer_funcs_status(adev, true); 480 } 481 482 return 0; 483 } 484 485 /** 486 * sdma_v2_4_rlc_resume - setup and start the async dma engines 487 * 488 * @adev: amdgpu_device pointer 489 * 490 * Set up the compute DMA queues and enable them (VI). 491 * Returns 0 for success, error for failure. 492 */ 493 static int sdma_v2_4_rlc_resume(struct amdgpu_device *adev) 494 { 495 /* XXX todo */ 496 return 0; 497 } 498 499 500 /** 501 * sdma_v2_4_start - setup and start the async dma engines 502 * 503 * @adev: amdgpu_device pointer 504 * 505 * Set up the DMA engines and enable them (VI). 506 * Returns 0 for success, error for failure. 507 */ 508 static int sdma_v2_4_start(struct amdgpu_device *adev) 509 { 510 int r; 511 512 /* halt the engine before programing */ 513 sdma_v2_4_enable(adev, false); 514 515 /* start the gfx rings and rlc compute queues */ 516 r = sdma_v2_4_gfx_resume(adev); 517 if (r) 518 return r; 519 r = sdma_v2_4_rlc_resume(adev); 520 if (r) 521 return r; 522 523 return 0; 524 } 525 526 /** 527 * sdma_v2_4_ring_test_ring - simple async dma engine test 528 * 529 * @ring: amdgpu_ring structure holding ring information 530 * 531 * Test the DMA engine by writing using it to write an 532 * value to memory. (VI). 533 * Returns 0 for success, error for failure. 534 */ 535 static int sdma_v2_4_ring_test_ring(struct amdgpu_ring *ring) 536 { 537 struct amdgpu_device *adev = ring->adev; 538 unsigned i; 539 unsigned index; 540 int r; 541 u32 tmp; 542 u64 gpu_addr; 543 544 r = amdgpu_device_wb_get(adev, &index); 545 if (r) 546 return r; 547 548 gpu_addr = adev->wb.gpu_addr + (index * 4); 549 tmp = 0xCAFEDEAD; 550 adev->wb.wb[index] = cpu_to_le32(tmp); 551 552 r = amdgpu_ring_alloc(ring, 5); 553 if (r) 554 goto error_free_wb; 555 556 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) | 557 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR)); 558 amdgpu_ring_write(ring, lower_32_bits(gpu_addr)); 559 amdgpu_ring_write(ring, upper_32_bits(gpu_addr)); 560 amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1)); 561 amdgpu_ring_write(ring, 0xDEADBEEF); 562 amdgpu_ring_commit(ring); 563 564 for (i = 0; i < adev->usec_timeout; i++) { 565 tmp = le32_to_cpu(adev->wb.wb[index]); 566 if (tmp == 0xDEADBEEF) 567 break; 568 udelay(1); 569 } 570 571 if (i >= adev->usec_timeout) 572 r = -ETIMEDOUT; 573 574 error_free_wb: 575 amdgpu_device_wb_free(adev, index); 576 return r; 577 } 578 579 /** 580 * sdma_v2_4_ring_test_ib - test an IB on the DMA engine 581 * 582 * @ring: amdgpu_ring structure holding ring information 583 * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT 584 * 585 * Test a simple IB in the DMA ring (VI). 586 * Returns 0 on success, error on failure. 587 */ 588 static int sdma_v2_4_ring_test_ib(struct amdgpu_ring *ring, long timeout) 589 { 590 struct amdgpu_device *adev = ring->adev; 591 struct amdgpu_ib ib; 592 struct dma_fence *f = NULL; 593 unsigned index; 594 u32 tmp = 0; 595 u64 gpu_addr; 596 long r; 597 598 r = amdgpu_device_wb_get(adev, &index); 599 if (r) 600 return r; 601 602 gpu_addr = adev->wb.gpu_addr + (index * 4); 603 tmp = 0xCAFEDEAD; 604 adev->wb.wb[index] = cpu_to_le32(tmp); 605 memset(&ib, 0, sizeof(ib)); 606 r = amdgpu_ib_get(adev, NULL, 256, 607 AMDGPU_IB_POOL_DIRECT, &ib); 608 if (r) 609 goto err0; 610 611 ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) | 612 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR); 613 ib.ptr[1] = lower_32_bits(gpu_addr); 614 ib.ptr[2] = upper_32_bits(gpu_addr); 615 ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1); 616 ib.ptr[4] = 0xDEADBEEF; 617 ib.ptr[5] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP); 618 ib.ptr[6] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP); 619 ib.ptr[7] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP); 620 ib.length_dw = 8; 621 622 r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f); 623 if (r) 624 goto err1; 625 626 r = dma_fence_wait_timeout(f, false, timeout); 627 if (r == 0) { 628 r = -ETIMEDOUT; 629 goto err1; 630 } else if (r < 0) { 631 goto err1; 632 } 633 tmp = le32_to_cpu(adev->wb.wb[index]); 634 if (tmp == 0xDEADBEEF) 635 r = 0; 636 else 637 r = -EINVAL; 638 639 err1: 640 amdgpu_ib_free(adev, &ib, NULL); 641 dma_fence_put(f); 642 err0: 643 amdgpu_device_wb_free(adev, index); 644 return r; 645 } 646 647 /** 648 * sdma_v2_4_vm_copy_pte - update PTEs by copying them from the GART 649 * 650 * @ib: indirect buffer to fill with commands 651 * @pe: addr of the page entry 652 * @src: src addr to copy from 653 * @count: number of page entries to update 654 * 655 * Update PTEs by copying them from the GART using sDMA (CIK). 656 */ 657 static void sdma_v2_4_vm_copy_pte(struct amdgpu_ib *ib, 658 uint64_t pe, uint64_t src, 659 unsigned count) 660 { 661 unsigned bytes = count * 8; 662 663 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) | 664 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR); 665 ib->ptr[ib->length_dw++] = bytes; 666 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ 667 ib->ptr[ib->length_dw++] = lower_32_bits(src); 668 ib->ptr[ib->length_dw++] = upper_32_bits(src); 669 ib->ptr[ib->length_dw++] = lower_32_bits(pe); 670 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 671 } 672 673 /** 674 * sdma_v2_4_vm_write_pte - update PTEs by writing them manually 675 * 676 * @ib: indirect buffer to fill with commands 677 * @pe: addr of the page entry 678 * @value: dst addr to write into pe 679 * @count: number of page entries to update 680 * @incr: increase next addr by incr bytes 681 * 682 * Update PTEs by writing them manually using sDMA (CIK). 683 */ 684 static void sdma_v2_4_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe, 685 uint64_t value, unsigned count, 686 uint32_t incr) 687 { 688 unsigned ndw = count * 2; 689 690 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) | 691 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR); 692 ib->ptr[ib->length_dw++] = pe; 693 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 694 ib->ptr[ib->length_dw++] = ndw; 695 for (; ndw > 0; ndw -= 2) { 696 ib->ptr[ib->length_dw++] = lower_32_bits(value); 697 ib->ptr[ib->length_dw++] = upper_32_bits(value); 698 value += incr; 699 } 700 } 701 702 /** 703 * sdma_v2_4_vm_set_pte_pde - update the page tables using sDMA 704 * 705 * @ib: indirect buffer to fill with commands 706 * @pe: addr of the page entry 707 * @addr: dst addr to write into pe 708 * @count: number of page entries to update 709 * @incr: increase next addr by incr bytes 710 * @flags: access flags 711 * 712 * Update the page tables using sDMA (CIK). 713 */ 714 static void sdma_v2_4_vm_set_pte_pde(struct amdgpu_ib *ib, uint64_t pe, 715 uint64_t addr, unsigned count, 716 uint32_t incr, uint64_t flags) 717 { 718 /* for physically contiguous pages (vram) */ 719 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_GEN_PTEPDE); 720 ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */ 721 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 722 ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */ 723 ib->ptr[ib->length_dw++] = upper_32_bits(flags); 724 ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */ 725 ib->ptr[ib->length_dw++] = upper_32_bits(addr); 726 ib->ptr[ib->length_dw++] = incr; /* increment size */ 727 ib->ptr[ib->length_dw++] = 0; 728 ib->ptr[ib->length_dw++] = count; /* number of entries */ 729 } 730 731 /** 732 * sdma_v2_4_ring_pad_ib - pad the IB to the required number of dw 733 * 734 * @ring: amdgpu_ring structure holding ring information 735 * @ib: indirect buffer to fill with padding 736 * 737 */ 738 static void sdma_v2_4_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib) 739 { 740 struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring); 741 u32 pad_count; 742 int i; 743 744 pad_count = (-ib->length_dw) & 7; 745 for (i = 0; i < pad_count; i++) 746 if (sdma && sdma->burst_nop && (i == 0)) 747 ib->ptr[ib->length_dw++] = 748 SDMA_PKT_HEADER_OP(SDMA_OP_NOP) | 749 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1); 750 else 751 ib->ptr[ib->length_dw++] = 752 SDMA_PKT_HEADER_OP(SDMA_OP_NOP); 753 } 754 755 /** 756 * sdma_v2_4_ring_emit_pipeline_sync - sync the pipeline 757 * 758 * @ring: amdgpu_ring pointer 759 * 760 * Make sure all previous operations are completed (CIK). 761 */ 762 static void sdma_v2_4_ring_emit_pipeline_sync(struct amdgpu_ring *ring) 763 { 764 uint32_t seq = ring->fence_drv.sync_seq; 765 uint64_t addr = ring->fence_drv.gpu_addr; 766 767 /* wait for idle */ 768 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | 769 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) | 770 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */ 771 SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1)); 772 amdgpu_ring_write(ring, addr & 0xfffffffc); 773 amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff); 774 amdgpu_ring_write(ring, seq); /* reference */ 775 amdgpu_ring_write(ring, 0xffffffff); /* mask */ 776 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | 777 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */ 778 } 779 780 /** 781 * sdma_v2_4_ring_emit_vm_flush - cik vm flush using sDMA 782 * 783 * @ring: amdgpu_ring pointer 784 * @vmid: vmid number to use 785 * @pd_addr: address 786 * 787 * Update the page table base and flush the VM TLB 788 * using sDMA (VI). 789 */ 790 static void sdma_v2_4_ring_emit_vm_flush(struct amdgpu_ring *ring, 791 unsigned vmid, uint64_t pd_addr) 792 { 793 amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr); 794 795 /* wait for flush */ 796 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | 797 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) | 798 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(0)); /* always */ 799 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2); 800 amdgpu_ring_write(ring, 0); 801 amdgpu_ring_write(ring, 0); /* reference */ 802 amdgpu_ring_write(ring, 0); /* mask */ 803 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | 804 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */ 805 } 806 807 static void sdma_v2_4_ring_emit_wreg(struct amdgpu_ring *ring, 808 uint32_t reg, uint32_t val) 809 { 810 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) | 811 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf)); 812 amdgpu_ring_write(ring, reg); 813 amdgpu_ring_write(ring, val); 814 } 815 816 static int sdma_v2_4_early_init(void *handle) 817 { 818 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 819 820 adev->sdma.num_instances = SDMA_MAX_INSTANCE; 821 822 sdma_v2_4_set_ring_funcs(adev); 823 sdma_v2_4_set_buffer_funcs(adev); 824 sdma_v2_4_set_vm_pte_funcs(adev); 825 sdma_v2_4_set_irq_funcs(adev); 826 827 return 0; 828 } 829 830 static int sdma_v2_4_sw_init(void *handle) 831 { 832 struct amdgpu_ring *ring; 833 int r, i; 834 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 835 836 /* SDMA trap event */ 837 r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_SDMA_TRAP, 838 &adev->sdma.trap_irq); 839 if (r) 840 return r; 841 842 /* SDMA Privileged inst */ 843 r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 241, 844 &adev->sdma.illegal_inst_irq); 845 if (r) 846 return r; 847 848 /* SDMA Privileged inst */ 849 r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_SDMA_SRBM_WRITE, 850 &adev->sdma.illegal_inst_irq); 851 if (r) 852 return r; 853 854 r = sdma_v2_4_init_microcode(adev); 855 if (r) { 856 DRM_ERROR("Failed to load sdma firmware!\n"); 857 return r; 858 } 859 860 for (i = 0; i < adev->sdma.num_instances; i++) { 861 ring = &adev->sdma.instance[i].ring; 862 ring->ring_obj = NULL; 863 ring->use_doorbell = false; 864 sprintf(ring->name, "sdma%d", i); 865 r = amdgpu_ring_init(adev, ring, 1024, &adev->sdma.trap_irq, 866 (i == 0) ? AMDGPU_SDMA_IRQ_INSTANCE0 : 867 AMDGPU_SDMA_IRQ_INSTANCE1, 868 AMDGPU_RING_PRIO_DEFAULT, NULL); 869 if (r) 870 return r; 871 } 872 873 return r; 874 } 875 876 static int sdma_v2_4_sw_fini(void *handle) 877 { 878 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 879 int i; 880 881 for (i = 0; i < adev->sdma.num_instances; i++) 882 amdgpu_ring_fini(&adev->sdma.instance[i].ring); 883 884 sdma_v2_4_free_microcode(adev); 885 return 0; 886 } 887 888 static int sdma_v2_4_hw_init(void *handle) 889 { 890 int r; 891 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 892 893 sdma_v2_4_init_golden_registers(adev); 894 895 r = sdma_v2_4_start(adev); 896 if (r) 897 return r; 898 899 return r; 900 } 901 902 static int sdma_v2_4_hw_fini(void *handle) 903 { 904 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 905 906 sdma_v2_4_enable(adev, false); 907 908 return 0; 909 } 910 911 static int sdma_v2_4_suspend(void *handle) 912 { 913 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 914 915 return sdma_v2_4_hw_fini(adev); 916 } 917 918 static int sdma_v2_4_resume(void *handle) 919 { 920 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 921 922 return sdma_v2_4_hw_init(adev); 923 } 924 925 static bool sdma_v2_4_is_idle(void *handle) 926 { 927 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 928 u32 tmp = RREG32(mmSRBM_STATUS2); 929 930 if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK | 931 SRBM_STATUS2__SDMA1_BUSY_MASK)) 932 return false; 933 934 return true; 935 } 936 937 static int sdma_v2_4_wait_for_idle(void *handle) 938 { 939 unsigned i; 940 u32 tmp; 941 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 942 943 for (i = 0; i < adev->usec_timeout; i++) { 944 tmp = RREG32(mmSRBM_STATUS2) & (SRBM_STATUS2__SDMA_BUSY_MASK | 945 SRBM_STATUS2__SDMA1_BUSY_MASK); 946 947 if (!tmp) 948 return 0; 949 udelay(1); 950 } 951 return -ETIMEDOUT; 952 } 953 954 static int sdma_v2_4_soft_reset(void *handle) 955 { 956 u32 srbm_soft_reset = 0; 957 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 958 u32 tmp = RREG32(mmSRBM_STATUS2); 959 960 if (tmp & SRBM_STATUS2__SDMA_BUSY_MASK) { 961 /* sdma0 */ 962 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET); 963 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0); 964 WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp); 965 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK; 966 } 967 if (tmp & SRBM_STATUS2__SDMA1_BUSY_MASK) { 968 /* sdma1 */ 969 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET); 970 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0); 971 WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp); 972 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK; 973 } 974 975 if (srbm_soft_reset) { 976 tmp = RREG32(mmSRBM_SOFT_RESET); 977 tmp |= srbm_soft_reset; 978 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp); 979 WREG32(mmSRBM_SOFT_RESET, tmp); 980 tmp = RREG32(mmSRBM_SOFT_RESET); 981 982 udelay(50); 983 984 tmp &= ~srbm_soft_reset; 985 WREG32(mmSRBM_SOFT_RESET, tmp); 986 tmp = RREG32(mmSRBM_SOFT_RESET); 987 988 /* Wait a little for things to settle down */ 989 udelay(50); 990 } 991 992 return 0; 993 } 994 995 static int sdma_v2_4_set_trap_irq_state(struct amdgpu_device *adev, 996 struct amdgpu_irq_src *src, 997 unsigned type, 998 enum amdgpu_interrupt_state state) 999 { 1000 u32 sdma_cntl; 1001 1002 switch (type) { 1003 case AMDGPU_SDMA_IRQ_INSTANCE0: 1004 switch (state) { 1005 case AMDGPU_IRQ_STATE_DISABLE: 1006 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET); 1007 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0); 1008 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl); 1009 break; 1010 case AMDGPU_IRQ_STATE_ENABLE: 1011 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET); 1012 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1); 1013 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl); 1014 break; 1015 default: 1016 break; 1017 } 1018 break; 1019 case AMDGPU_SDMA_IRQ_INSTANCE1: 1020 switch (state) { 1021 case AMDGPU_IRQ_STATE_DISABLE: 1022 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET); 1023 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0); 1024 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl); 1025 break; 1026 case AMDGPU_IRQ_STATE_ENABLE: 1027 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET); 1028 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1); 1029 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl); 1030 break; 1031 default: 1032 break; 1033 } 1034 break; 1035 default: 1036 break; 1037 } 1038 return 0; 1039 } 1040 1041 static int sdma_v2_4_process_trap_irq(struct amdgpu_device *adev, 1042 struct amdgpu_irq_src *source, 1043 struct amdgpu_iv_entry *entry) 1044 { 1045 u8 instance_id, queue_id; 1046 1047 instance_id = (entry->ring_id & 0x3) >> 0; 1048 queue_id = (entry->ring_id & 0xc) >> 2; 1049 DRM_DEBUG("IH: SDMA trap\n"); 1050 switch (instance_id) { 1051 case 0: 1052 switch (queue_id) { 1053 case 0: 1054 amdgpu_fence_process(&adev->sdma.instance[0].ring); 1055 break; 1056 case 1: 1057 /* XXX compute */ 1058 break; 1059 case 2: 1060 /* XXX compute */ 1061 break; 1062 } 1063 break; 1064 case 1: 1065 switch (queue_id) { 1066 case 0: 1067 amdgpu_fence_process(&adev->sdma.instance[1].ring); 1068 break; 1069 case 1: 1070 /* XXX compute */ 1071 break; 1072 case 2: 1073 /* XXX compute */ 1074 break; 1075 } 1076 break; 1077 } 1078 return 0; 1079 } 1080 1081 static int sdma_v2_4_process_illegal_inst_irq(struct amdgpu_device *adev, 1082 struct amdgpu_irq_src *source, 1083 struct amdgpu_iv_entry *entry) 1084 { 1085 u8 instance_id, queue_id; 1086 1087 DRM_ERROR("Illegal instruction in SDMA command stream\n"); 1088 instance_id = (entry->ring_id & 0x3) >> 0; 1089 queue_id = (entry->ring_id & 0xc) >> 2; 1090 1091 if (instance_id <= 1 && queue_id == 0) 1092 drm_sched_fault(&adev->sdma.instance[instance_id].ring.sched); 1093 return 0; 1094 } 1095 1096 static int sdma_v2_4_set_clockgating_state(void *handle, 1097 enum amd_clockgating_state state) 1098 { 1099 /* XXX handled via the smc on VI */ 1100 return 0; 1101 } 1102 1103 static int sdma_v2_4_set_powergating_state(void *handle, 1104 enum amd_powergating_state state) 1105 { 1106 return 0; 1107 } 1108 1109 static const struct amd_ip_funcs sdma_v2_4_ip_funcs = { 1110 .name = "sdma_v2_4", 1111 .early_init = sdma_v2_4_early_init, 1112 .late_init = NULL, 1113 .sw_init = sdma_v2_4_sw_init, 1114 .sw_fini = sdma_v2_4_sw_fini, 1115 .hw_init = sdma_v2_4_hw_init, 1116 .hw_fini = sdma_v2_4_hw_fini, 1117 .suspend = sdma_v2_4_suspend, 1118 .resume = sdma_v2_4_resume, 1119 .is_idle = sdma_v2_4_is_idle, 1120 .wait_for_idle = sdma_v2_4_wait_for_idle, 1121 .soft_reset = sdma_v2_4_soft_reset, 1122 .set_clockgating_state = sdma_v2_4_set_clockgating_state, 1123 .set_powergating_state = sdma_v2_4_set_powergating_state, 1124 }; 1125 1126 static const struct amdgpu_ring_funcs sdma_v2_4_ring_funcs = { 1127 .type = AMDGPU_RING_TYPE_SDMA, 1128 .align_mask = 0xf, 1129 .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP), 1130 .support_64bit_ptrs = false, 1131 .secure_submission_supported = true, 1132 .get_rptr = sdma_v2_4_ring_get_rptr, 1133 .get_wptr = sdma_v2_4_ring_get_wptr, 1134 .set_wptr = sdma_v2_4_ring_set_wptr, 1135 .emit_frame_size = 1136 6 + /* sdma_v2_4_ring_emit_hdp_flush */ 1137 3 + /* hdp invalidate */ 1138 6 + /* sdma_v2_4_ring_emit_pipeline_sync */ 1139 VI_FLUSH_GPU_TLB_NUM_WREG * 3 + 6 + /* sdma_v2_4_ring_emit_vm_flush */ 1140 10 + 10 + 10, /* sdma_v2_4_ring_emit_fence x3 for user fence, vm fence */ 1141 .emit_ib_size = 7 + 6, /* sdma_v2_4_ring_emit_ib */ 1142 .emit_ib = sdma_v2_4_ring_emit_ib, 1143 .emit_fence = sdma_v2_4_ring_emit_fence, 1144 .emit_pipeline_sync = sdma_v2_4_ring_emit_pipeline_sync, 1145 .emit_vm_flush = sdma_v2_4_ring_emit_vm_flush, 1146 .emit_hdp_flush = sdma_v2_4_ring_emit_hdp_flush, 1147 .test_ring = sdma_v2_4_ring_test_ring, 1148 .test_ib = sdma_v2_4_ring_test_ib, 1149 .insert_nop = sdma_v2_4_ring_insert_nop, 1150 .pad_ib = sdma_v2_4_ring_pad_ib, 1151 .emit_wreg = sdma_v2_4_ring_emit_wreg, 1152 }; 1153 1154 static void sdma_v2_4_set_ring_funcs(struct amdgpu_device *adev) 1155 { 1156 int i; 1157 1158 for (i = 0; i < adev->sdma.num_instances; i++) { 1159 adev->sdma.instance[i].ring.funcs = &sdma_v2_4_ring_funcs; 1160 adev->sdma.instance[i].ring.me = i; 1161 } 1162 } 1163 1164 static const struct amdgpu_irq_src_funcs sdma_v2_4_trap_irq_funcs = { 1165 .set = sdma_v2_4_set_trap_irq_state, 1166 .process = sdma_v2_4_process_trap_irq, 1167 }; 1168 1169 static const struct amdgpu_irq_src_funcs sdma_v2_4_illegal_inst_irq_funcs = { 1170 .process = sdma_v2_4_process_illegal_inst_irq, 1171 }; 1172 1173 static void sdma_v2_4_set_irq_funcs(struct amdgpu_device *adev) 1174 { 1175 adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST; 1176 adev->sdma.trap_irq.funcs = &sdma_v2_4_trap_irq_funcs; 1177 adev->sdma.illegal_inst_irq.funcs = &sdma_v2_4_illegal_inst_irq_funcs; 1178 } 1179 1180 /** 1181 * sdma_v2_4_emit_copy_buffer - copy buffer using the sDMA engine 1182 * 1183 * @ib: indirect buffer to copy to 1184 * @src_offset: src GPU address 1185 * @dst_offset: dst GPU address 1186 * @byte_count: number of bytes to xfer 1187 * @tmz: unused 1188 * 1189 * Copy GPU buffers using the DMA engine (VI). 1190 * Used by the amdgpu ttm implementation to move pages if 1191 * registered as the asic copy callback. 1192 */ 1193 static void sdma_v2_4_emit_copy_buffer(struct amdgpu_ib *ib, 1194 uint64_t src_offset, 1195 uint64_t dst_offset, 1196 uint32_t byte_count, 1197 bool tmz) 1198 { 1199 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) | 1200 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR); 1201 ib->ptr[ib->length_dw++] = byte_count; 1202 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ 1203 ib->ptr[ib->length_dw++] = lower_32_bits(src_offset); 1204 ib->ptr[ib->length_dw++] = upper_32_bits(src_offset); 1205 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset); 1206 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset); 1207 } 1208 1209 /** 1210 * sdma_v2_4_emit_fill_buffer - fill buffer using the sDMA engine 1211 * 1212 * @ib: indirect buffer to copy to 1213 * @src_data: value to write to buffer 1214 * @dst_offset: dst GPU address 1215 * @byte_count: number of bytes to xfer 1216 * 1217 * Fill GPU buffers using the DMA engine (VI). 1218 */ 1219 static void sdma_v2_4_emit_fill_buffer(struct amdgpu_ib *ib, 1220 uint32_t src_data, 1221 uint64_t dst_offset, 1222 uint32_t byte_count) 1223 { 1224 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL); 1225 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset); 1226 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset); 1227 ib->ptr[ib->length_dw++] = src_data; 1228 ib->ptr[ib->length_dw++] = byte_count; 1229 } 1230 1231 static const struct amdgpu_buffer_funcs sdma_v2_4_buffer_funcs = { 1232 .copy_max_bytes = 0x1fffff, 1233 .copy_num_dw = 7, 1234 .emit_copy_buffer = sdma_v2_4_emit_copy_buffer, 1235 1236 .fill_max_bytes = 0x1fffff, 1237 .fill_num_dw = 7, 1238 .emit_fill_buffer = sdma_v2_4_emit_fill_buffer, 1239 }; 1240 1241 static void sdma_v2_4_set_buffer_funcs(struct amdgpu_device *adev) 1242 { 1243 adev->mman.buffer_funcs = &sdma_v2_4_buffer_funcs; 1244 adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring; 1245 } 1246 1247 static const struct amdgpu_vm_pte_funcs sdma_v2_4_vm_pte_funcs = { 1248 .copy_pte_num_dw = 7, 1249 .copy_pte = sdma_v2_4_vm_copy_pte, 1250 1251 .write_pte = sdma_v2_4_vm_write_pte, 1252 .set_pte_pde = sdma_v2_4_vm_set_pte_pde, 1253 }; 1254 1255 static void sdma_v2_4_set_vm_pte_funcs(struct amdgpu_device *adev) 1256 { 1257 unsigned i; 1258 1259 adev->vm_manager.vm_pte_funcs = &sdma_v2_4_vm_pte_funcs; 1260 for (i = 0; i < adev->sdma.num_instances; i++) { 1261 adev->vm_manager.vm_pte_scheds[i] = 1262 &adev->sdma.instance[i].ring.sched; 1263 } 1264 adev->vm_manager.vm_pte_num_scheds = adev->sdma.num_instances; 1265 } 1266 1267 const struct amdgpu_ip_block_version sdma_v2_4_ip_block = 1268 { 1269 .type = AMD_IP_BLOCK_TYPE_SDMA, 1270 .major = 2, 1271 .minor = 4, 1272 .rev = 0, 1273 .funcs = &sdma_v2_4_ip_funcs, 1274 }; 1275