1 /* 2 * Copyright 2013 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/firmware.h> 26 #include <linux/module.h> 27 28 #include "amdgpu.h" 29 #include "amdgpu_ucode.h" 30 #include "amdgpu_trace.h" 31 #include "cikd.h" 32 #include "cik.h" 33 34 #include "bif/bif_4_1_d.h" 35 #include "bif/bif_4_1_sh_mask.h" 36 37 #include "gca/gfx_7_2_d.h" 38 #include "gca/gfx_7_2_enum.h" 39 #include "gca/gfx_7_2_sh_mask.h" 40 41 #include "gmc/gmc_7_1_d.h" 42 #include "gmc/gmc_7_1_sh_mask.h" 43 44 #include "oss/oss_2_0_d.h" 45 #include "oss/oss_2_0_sh_mask.h" 46 47 static const u32 sdma_offsets[SDMA_MAX_INSTANCE] = 48 { 49 SDMA0_REGISTER_OFFSET, 50 SDMA1_REGISTER_OFFSET 51 }; 52 53 static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev); 54 static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev); 55 static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev); 56 static int cik_sdma_soft_reset(struct amdgpu_ip_block *ip_block); 57 58 u32 amdgpu_cik_gpu_check_soft_reset(struct amdgpu_device *adev); 59 60 MODULE_FIRMWARE("amdgpu/bonaire_sdma.bin"); 61 MODULE_FIRMWARE("amdgpu/bonaire_sdma1.bin"); 62 MODULE_FIRMWARE("amdgpu/hawaii_sdma.bin"); 63 MODULE_FIRMWARE("amdgpu/hawaii_sdma1.bin"); 64 MODULE_FIRMWARE("amdgpu/kaveri_sdma.bin"); 65 MODULE_FIRMWARE("amdgpu/kaveri_sdma1.bin"); 66 MODULE_FIRMWARE("amdgpu/kabini_sdma.bin"); 67 MODULE_FIRMWARE("amdgpu/kabini_sdma1.bin"); 68 MODULE_FIRMWARE("amdgpu/mullins_sdma.bin"); 69 MODULE_FIRMWARE("amdgpu/mullins_sdma1.bin"); 70 71 static void cik_sdma_free_microcode(struct amdgpu_device *adev) 72 { 73 int i; 74 75 for (i = 0; i < adev->sdma.num_instances; i++) 76 amdgpu_ucode_release(&adev->sdma.instance[i].fw); 77 } 78 79 /* 80 * sDMA - System DMA 81 * Starting with CIK, the GPU has new asynchronous 82 * DMA engines. These engines are used for compute 83 * and gfx. There are two DMA engines (SDMA0, SDMA1) 84 * and each one supports 1 ring buffer used for gfx 85 * and 2 queues used for compute. 86 * 87 * The programming model is very similar to the CP 88 * (ring buffer, IBs, etc.), but sDMA has it's own 89 * packet format that is different from the PM4 format 90 * used by the CP. sDMA supports copying data, writing 91 * embedded data, solid fills, and a number of other 92 * things. It also has support for tiling/detiling of 93 * buffers. 94 */ 95 96 /** 97 * cik_sdma_init_microcode - load ucode images from disk 98 * 99 * @adev: amdgpu_device pointer 100 * 101 * Use the firmware interface to load the ucode images into 102 * the driver (not loaded into hw). 103 * Returns 0 on success, error on failure. 104 */ 105 static int cik_sdma_init_microcode(struct amdgpu_device *adev) 106 { 107 const char *chip_name; 108 int err = 0, i; 109 110 DRM_DEBUG("\n"); 111 112 switch (adev->asic_type) { 113 case CHIP_BONAIRE: 114 chip_name = "bonaire"; 115 break; 116 case CHIP_HAWAII: 117 chip_name = "hawaii"; 118 break; 119 case CHIP_KAVERI: 120 chip_name = "kaveri"; 121 break; 122 case CHIP_KABINI: 123 chip_name = "kabini"; 124 break; 125 case CHIP_MULLINS: 126 chip_name = "mullins"; 127 break; 128 default: 129 return -EINVAL; 130 } 131 132 for (i = 0; i < adev->sdma.num_instances; i++) { 133 if (i == 0) 134 err = amdgpu_ucode_request(adev, &adev->sdma.instance[i].fw, 135 AMDGPU_UCODE_REQUIRED, 136 "amdgpu/%s_sdma.bin", chip_name); 137 else 138 err = amdgpu_ucode_request(adev, &adev->sdma.instance[i].fw, 139 AMDGPU_UCODE_REQUIRED, 140 "amdgpu/%s_sdma1.bin", chip_name); 141 if (err) 142 goto out; 143 } 144 out: 145 if (err) { 146 pr_err("cik_sdma: Failed to load firmware \"%s_sdma%s.bin\"\n", 147 chip_name, i == 0 ? "" : "1"); 148 for (i = 0; i < adev->sdma.num_instances; i++) 149 amdgpu_ucode_release(&adev->sdma.instance[i].fw); 150 } 151 return err; 152 } 153 154 /** 155 * cik_sdma_ring_get_rptr - get the current read pointer 156 * 157 * @ring: amdgpu ring pointer 158 * 159 * Get the current rptr from the hardware (CIK+). 160 */ 161 static uint64_t cik_sdma_ring_get_rptr(struct amdgpu_ring *ring) 162 { 163 u32 rptr; 164 165 rptr = *ring->rptr_cpu_addr; 166 167 return (rptr & 0x3fffc) >> 2; 168 } 169 170 /** 171 * cik_sdma_ring_get_wptr - get the current write pointer 172 * 173 * @ring: amdgpu ring pointer 174 * 175 * Get the current wptr from the hardware (CIK+). 176 */ 177 static uint64_t cik_sdma_ring_get_wptr(struct amdgpu_ring *ring) 178 { 179 struct amdgpu_device *adev = ring->adev; 180 181 return (RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[ring->me]) & 0x3fffc) >> 2; 182 } 183 184 /** 185 * cik_sdma_ring_set_wptr - commit the write pointer 186 * 187 * @ring: amdgpu ring pointer 188 * 189 * Write the wptr back to the hardware (CIK+). 190 */ 191 static void cik_sdma_ring_set_wptr(struct amdgpu_ring *ring) 192 { 193 struct amdgpu_device *adev = ring->adev; 194 195 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[ring->me], 196 (ring->wptr << 2) & 0x3fffc); 197 } 198 199 static void cik_sdma_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count) 200 { 201 struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring); 202 int i; 203 204 for (i = 0; i < count; i++) 205 if (sdma && sdma->burst_nop && (i == 0)) 206 amdgpu_ring_write(ring, ring->funcs->nop | 207 SDMA_NOP_COUNT(count - 1)); 208 else 209 amdgpu_ring_write(ring, ring->funcs->nop); 210 } 211 212 /** 213 * cik_sdma_ring_emit_ib - Schedule an IB on the DMA engine 214 * 215 * @ring: amdgpu ring pointer 216 * @job: job to retrive vmid from 217 * @ib: IB object to schedule 218 * @flags: unused 219 * 220 * Schedule an IB in the DMA ring (CIK). 221 */ 222 static void cik_sdma_ring_emit_ib(struct amdgpu_ring *ring, 223 struct amdgpu_job *job, 224 struct amdgpu_ib *ib, 225 uint32_t flags) 226 { 227 unsigned vmid = AMDGPU_JOB_GET_VMID(job); 228 u32 extra_bits = vmid & 0xf; 229 230 /* IB packet must end on a 8 DW boundary */ 231 cik_sdma_ring_insert_nop(ring, (4 - lower_32_bits(ring->wptr)) & 7); 232 233 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_INDIRECT_BUFFER, 0, extra_bits)); 234 amdgpu_ring_write(ring, ib->gpu_addr & 0xffffffe0); /* base must be 32 byte aligned */ 235 amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xffffffff); 236 amdgpu_ring_write(ring, ib->length_dw); 237 238 } 239 240 /** 241 * cik_sdma_ring_emit_hdp_flush - emit an hdp flush on the DMA ring 242 * 243 * @ring: amdgpu ring pointer 244 * 245 * Emit an hdp flush packet on the requested DMA ring. 246 */ 247 static void cik_sdma_ring_emit_hdp_flush(struct amdgpu_ring *ring) 248 { 249 u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(1) | 250 SDMA_POLL_REG_MEM_EXTRA_FUNC(3)); /* == */ 251 u32 ref_and_mask; 252 253 if (ring->me == 0) 254 ref_and_mask = GPU_HDP_FLUSH_DONE__SDMA0_MASK; 255 else 256 ref_and_mask = GPU_HDP_FLUSH_DONE__SDMA1_MASK; 257 258 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits)); 259 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_DONE << 2); 260 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_REQ << 2); 261 amdgpu_ring_write(ring, ref_and_mask); /* reference */ 262 amdgpu_ring_write(ring, ref_and_mask); /* mask */ 263 amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */ 264 } 265 266 /** 267 * cik_sdma_ring_emit_fence - emit a fence on the DMA ring 268 * 269 * @ring: amdgpu ring pointer 270 * @addr: address 271 * @seq: sequence number 272 * @flags: fence related flags 273 * 274 * Add a DMA fence packet to the ring to write 275 * the fence seq number and DMA trap packet to generate 276 * an interrupt if needed (CIK). 277 */ 278 static void cik_sdma_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq, 279 unsigned flags) 280 { 281 bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT; 282 /* write the fence */ 283 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_FENCE, 0, 0)); 284 amdgpu_ring_write(ring, lower_32_bits(addr)); 285 amdgpu_ring_write(ring, upper_32_bits(addr)); 286 amdgpu_ring_write(ring, lower_32_bits(seq)); 287 288 /* optionally write high bits as well */ 289 if (write64bit) { 290 addr += 4; 291 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_FENCE, 0, 0)); 292 amdgpu_ring_write(ring, lower_32_bits(addr)); 293 amdgpu_ring_write(ring, upper_32_bits(addr)); 294 amdgpu_ring_write(ring, upper_32_bits(seq)); 295 } 296 297 /* generate an interrupt */ 298 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_TRAP, 0, 0)); 299 } 300 301 /** 302 * cik_sdma_gfx_stop - stop the gfx async dma engines 303 * 304 * @adev: amdgpu_device pointer 305 * 306 * Stop the gfx async dma ring buffers (CIK). 307 */ 308 static void cik_sdma_gfx_stop(struct amdgpu_device *adev) 309 { 310 u32 rb_cntl; 311 int i; 312 313 for (i = 0; i < adev->sdma.num_instances; i++) { 314 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]); 315 rb_cntl &= ~SDMA0_GFX_RB_CNTL__RB_ENABLE_MASK; 316 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); 317 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], 0); 318 } 319 } 320 321 /** 322 * cik_sdma_rlc_stop - stop the compute async dma engines 323 * 324 * @adev: amdgpu_device pointer 325 * 326 * Stop the compute async dma queues (CIK). 327 */ 328 static void cik_sdma_rlc_stop(struct amdgpu_device *adev) 329 { 330 /* XXX todo */ 331 } 332 333 /** 334 * cik_ctx_switch_enable - stop the async dma engines context switch 335 * 336 * @adev: amdgpu_device pointer 337 * @enable: enable/disable the DMA MEs context switch. 338 * 339 * Halt or unhalt the async dma engines context switch (VI). 340 */ 341 static void cik_ctx_switch_enable(struct amdgpu_device *adev, bool enable) 342 { 343 u32 f32_cntl, phase_quantum = 0; 344 int i; 345 346 if (amdgpu_sdma_phase_quantum) { 347 unsigned value = amdgpu_sdma_phase_quantum; 348 unsigned unit = 0; 349 350 while (value > (SDMA0_PHASE0_QUANTUM__VALUE_MASK >> 351 SDMA0_PHASE0_QUANTUM__VALUE__SHIFT)) { 352 value = (value + 1) >> 1; 353 unit++; 354 } 355 if (unit > (SDMA0_PHASE0_QUANTUM__UNIT_MASK >> 356 SDMA0_PHASE0_QUANTUM__UNIT__SHIFT)) { 357 value = (SDMA0_PHASE0_QUANTUM__VALUE_MASK >> 358 SDMA0_PHASE0_QUANTUM__VALUE__SHIFT); 359 unit = (SDMA0_PHASE0_QUANTUM__UNIT_MASK >> 360 SDMA0_PHASE0_QUANTUM__UNIT__SHIFT); 361 WARN_ONCE(1, 362 "clamping sdma_phase_quantum to %uK clock cycles\n", 363 value << unit); 364 } 365 phase_quantum = 366 value << SDMA0_PHASE0_QUANTUM__VALUE__SHIFT | 367 unit << SDMA0_PHASE0_QUANTUM__UNIT__SHIFT; 368 } 369 370 for (i = 0; i < adev->sdma.num_instances; i++) { 371 f32_cntl = RREG32(mmSDMA0_CNTL + sdma_offsets[i]); 372 if (enable) { 373 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL, 374 AUTO_CTXSW_ENABLE, 1); 375 if (amdgpu_sdma_phase_quantum) { 376 WREG32(mmSDMA0_PHASE0_QUANTUM + sdma_offsets[i], 377 phase_quantum); 378 WREG32(mmSDMA0_PHASE1_QUANTUM + sdma_offsets[i], 379 phase_quantum); 380 } 381 } else { 382 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL, 383 AUTO_CTXSW_ENABLE, 0); 384 } 385 386 WREG32(mmSDMA0_CNTL + sdma_offsets[i], f32_cntl); 387 } 388 } 389 390 /** 391 * cik_sdma_enable - stop the async dma engines 392 * 393 * @adev: amdgpu_device pointer 394 * @enable: enable/disable the DMA MEs. 395 * 396 * Halt or unhalt the async dma engines (CIK). 397 */ 398 static void cik_sdma_enable(struct amdgpu_device *adev, bool enable) 399 { 400 u32 me_cntl; 401 int i; 402 403 if (!enable) { 404 cik_sdma_gfx_stop(adev); 405 cik_sdma_rlc_stop(adev); 406 } 407 408 for (i = 0; i < adev->sdma.num_instances; i++) { 409 me_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]); 410 if (enable) 411 me_cntl &= ~SDMA0_F32_CNTL__HALT_MASK; 412 else 413 me_cntl |= SDMA0_F32_CNTL__HALT_MASK; 414 WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], me_cntl); 415 } 416 } 417 418 /** 419 * cik_sdma_gfx_resume - setup and start the async dma engines 420 * 421 * @adev: amdgpu_device pointer 422 * 423 * Set up the gfx DMA ring buffers and enable them (CIK). 424 * Returns 0 for success, error for failure. 425 */ 426 static int cik_sdma_gfx_resume(struct amdgpu_device *adev) 427 { 428 struct amdgpu_ring *ring; 429 u32 rb_cntl, ib_cntl; 430 u32 rb_bufsz; 431 int i, j, r; 432 433 for (i = 0; i < adev->sdma.num_instances; i++) { 434 ring = &adev->sdma.instance[i].ring; 435 436 mutex_lock(&adev->srbm_mutex); 437 for (j = 0; j < 16; j++) { 438 cik_srbm_select(adev, 0, 0, 0, j); 439 /* SDMA GFX */ 440 WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0); 441 WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0); 442 /* XXX SDMA RLC - todo */ 443 } 444 cik_srbm_select(adev, 0, 0, 0, 0); 445 mutex_unlock(&adev->srbm_mutex); 446 447 WREG32(mmSDMA0_TILING_CONFIG + sdma_offsets[i], 448 adev->gfx.config.gb_addr_config & 0x70); 449 450 WREG32(mmSDMA0_SEM_INCOMPLETE_TIMER_CNTL + sdma_offsets[i], 0); 451 WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0); 452 453 /* Set ring buffer size in dwords */ 454 rb_bufsz = order_base_2(ring->ring_size / 4); 455 rb_cntl = rb_bufsz << 1; 456 #ifdef __BIG_ENDIAN 457 rb_cntl |= SDMA0_GFX_RB_CNTL__RB_SWAP_ENABLE_MASK | 458 SDMA0_GFX_RB_CNTL__RPTR_WRITEBACK_SWAP_ENABLE_MASK; 459 #endif 460 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); 461 462 /* Initialize the ring buffer's read and write pointers */ 463 WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0); 464 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], 0); 465 WREG32(mmSDMA0_GFX_IB_RPTR + sdma_offsets[i], 0); 466 WREG32(mmSDMA0_GFX_IB_OFFSET + sdma_offsets[i], 0); 467 468 /* set the wb address whether it's enabled or not */ 469 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i], 470 upper_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFF); 471 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i], 472 ((ring->rptr_gpu_addr) & 0xFFFFFFFC)); 473 474 rb_cntl |= SDMA0_GFX_RB_CNTL__RPTR_WRITEBACK_ENABLE_MASK; 475 476 WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8); 477 WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40); 478 479 ring->wptr = 0; 480 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], ring->wptr << 2); 481 482 /* enable DMA RB */ 483 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], 484 rb_cntl | SDMA0_GFX_RB_CNTL__RB_ENABLE_MASK); 485 486 ib_cntl = SDMA0_GFX_IB_CNTL__IB_ENABLE_MASK; 487 #ifdef __BIG_ENDIAN 488 ib_cntl |= SDMA0_GFX_IB_CNTL__IB_SWAP_ENABLE_MASK; 489 #endif 490 /* enable DMA IBs */ 491 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl); 492 } 493 494 cik_sdma_enable(adev, true); 495 496 for (i = 0; i < adev->sdma.num_instances; i++) { 497 ring = &adev->sdma.instance[i].ring; 498 r = amdgpu_ring_test_helper(ring); 499 if (r) 500 return r; 501 } 502 503 return 0; 504 } 505 506 /** 507 * cik_sdma_rlc_resume - setup and start the async dma engines 508 * 509 * @adev: amdgpu_device pointer 510 * 511 * Set up the compute DMA queues and enable them (CIK). 512 * Returns 0 for success, error for failure. 513 */ 514 static int cik_sdma_rlc_resume(struct amdgpu_device *adev) 515 { 516 /* XXX todo */ 517 return 0; 518 } 519 520 /** 521 * cik_sdma_load_microcode - load the sDMA ME ucode 522 * 523 * @adev: amdgpu_device pointer 524 * 525 * Loads the sDMA0/1 ucode. 526 * Returns 0 for success, -EINVAL if the ucode is not available. 527 */ 528 static int cik_sdma_load_microcode(struct amdgpu_device *adev) 529 { 530 const struct sdma_firmware_header_v1_0 *hdr; 531 const __le32 *fw_data; 532 u32 fw_size; 533 int i, j; 534 535 /* halt the MEs */ 536 cik_sdma_enable(adev, false); 537 538 for (i = 0; i < adev->sdma.num_instances; i++) { 539 if (!adev->sdma.instance[i].fw) 540 return -EINVAL; 541 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data; 542 amdgpu_ucode_print_sdma_hdr(&hdr->header); 543 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; 544 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version); 545 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version); 546 if (adev->sdma.instance[i].feature_version >= 20) 547 adev->sdma.instance[i].burst_nop = true; 548 fw_data = (const __le32 *) 549 (adev->sdma.instance[i].fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); 550 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], 0); 551 for (j = 0; j < fw_size; j++) 552 WREG32(mmSDMA0_UCODE_DATA + sdma_offsets[i], le32_to_cpup(fw_data++)); 553 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], adev->sdma.instance[i].fw_version); 554 } 555 556 return 0; 557 } 558 559 /** 560 * cik_sdma_start - setup and start the async dma engines 561 * 562 * @adev: amdgpu_device pointer 563 * 564 * Set up the DMA engines and enable them (CIK). 565 * Returns 0 for success, error for failure. 566 */ 567 static int cik_sdma_start(struct amdgpu_device *adev) 568 { 569 int r; 570 571 r = cik_sdma_load_microcode(adev); 572 if (r) 573 return r; 574 575 /* halt the engine before programing */ 576 cik_sdma_enable(adev, false); 577 /* enable sdma ring preemption */ 578 cik_ctx_switch_enable(adev, true); 579 580 /* start the gfx rings and rlc compute queues */ 581 r = cik_sdma_gfx_resume(adev); 582 if (r) 583 return r; 584 r = cik_sdma_rlc_resume(adev); 585 if (r) 586 return r; 587 588 return 0; 589 } 590 591 /** 592 * cik_sdma_ring_test_ring - simple async dma engine test 593 * 594 * @ring: amdgpu_ring structure holding ring information 595 * 596 * Test the DMA engine by writing using it to write an 597 * value to memory. (CIK). 598 * Returns 0 for success, error for failure. 599 */ 600 static int cik_sdma_ring_test_ring(struct amdgpu_ring *ring) 601 { 602 struct amdgpu_device *adev = ring->adev; 603 unsigned i; 604 unsigned index; 605 int r; 606 u32 tmp; 607 u64 gpu_addr; 608 609 r = amdgpu_wb_get(adev, &index); 610 if (r) 611 return r; 612 613 gpu_addr = adev->wb.gpu_addr + (index * 4); 614 tmp = 0xCAFEDEAD; 615 adev->wb.wb[index] = cpu_to_le32(tmp); 616 617 r = amdgpu_ring_alloc(ring, 5); 618 if (r) 619 goto error_free_wb; 620 621 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0)); 622 amdgpu_ring_write(ring, lower_32_bits(gpu_addr)); 623 amdgpu_ring_write(ring, upper_32_bits(gpu_addr)); 624 amdgpu_ring_write(ring, 1); /* number of DWs to follow */ 625 amdgpu_ring_write(ring, 0xDEADBEEF); 626 amdgpu_ring_commit(ring); 627 628 for (i = 0; i < adev->usec_timeout; i++) { 629 tmp = le32_to_cpu(adev->wb.wb[index]); 630 if (tmp == 0xDEADBEEF) 631 break; 632 udelay(1); 633 } 634 635 if (i >= adev->usec_timeout) 636 r = -ETIMEDOUT; 637 638 error_free_wb: 639 amdgpu_wb_free(adev, index); 640 return r; 641 } 642 643 /** 644 * cik_sdma_ring_test_ib - test an IB on the DMA engine 645 * 646 * @ring: amdgpu_ring structure holding ring information 647 * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT 648 * 649 * Test a simple IB in the DMA ring (CIK). 650 * Returns 0 on success, error on failure. 651 */ 652 static int cik_sdma_ring_test_ib(struct amdgpu_ring *ring, long timeout) 653 { 654 struct amdgpu_device *adev = ring->adev; 655 struct amdgpu_ib ib; 656 struct dma_fence *f = NULL; 657 unsigned index; 658 u32 tmp = 0; 659 u64 gpu_addr; 660 long r; 661 662 r = amdgpu_wb_get(adev, &index); 663 if (r) 664 return r; 665 666 gpu_addr = adev->wb.gpu_addr + (index * 4); 667 tmp = 0xCAFEDEAD; 668 adev->wb.wb[index] = cpu_to_le32(tmp); 669 memset(&ib, 0, sizeof(ib)); 670 r = amdgpu_ib_get(adev, NULL, 256, 671 AMDGPU_IB_POOL_DIRECT, &ib); 672 if (r) 673 goto err0; 674 675 ib.ptr[0] = SDMA_PACKET(SDMA_OPCODE_WRITE, 676 SDMA_WRITE_SUB_OPCODE_LINEAR, 0); 677 ib.ptr[1] = lower_32_bits(gpu_addr); 678 ib.ptr[2] = upper_32_bits(gpu_addr); 679 ib.ptr[3] = 1; 680 ib.ptr[4] = 0xDEADBEEF; 681 ib.length_dw = 5; 682 r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f); 683 if (r) 684 goto err1; 685 686 r = dma_fence_wait_timeout(f, false, timeout); 687 if (r == 0) { 688 r = -ETIMEDOUT; 689 goto err1; 690 } else if (r < 0) { 691 goto err1; 692 } 693 tmp = le32_to_cpu(adev->wb.wb[index]); 694 if (tmp == 0xDEADBEEF) 695 r = 0; 696 else 697 r = -EINVAL; 698 699 err1: 700 amdgpu_ib_free(&ib, NULL); 701 dma_fence_put(f); 702 err0: 703 amdgpu_wb_free(adev, index); 704 return r; 705 } 706 707 /** 708 * cik_sdma_vm_copy_pte - update PTEs by copying them from the GART 709 * 710 * @ib: indirect buffer to fill with commands 711 * @pe: addr of the page entry 712 * @src: src addr to copy from 713 * @count: number of page entries to update 714 * 715 * Update PTEs by copying them from the GART using sDMA (CIK). 716 */ 717 static void cik_sdma_vm_copy_pte(struct amdgpu_ib *ib, 718 uint64_t pe, uint64_t src, 719 unsigned count) 720 { 721 unsigned bytes = count * 8; 722 723 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_COPY, 724 SDMA_WRITE_SUB_OPCODE_LINEAR, 0); 725 ib->ptr[ib->length_dw++] = bytes; 726 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ 727 ib->ptr[ib->length_dw++] = lower_32_bits(src); 728 ib->ptr[ib->length_dw++] = upper_32_bits(src); 729 ib->ptr[ib->length_dw++] = lower_32_bits(pe); 730 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 731 } 732 733 /** 734 * cik_sdma_vm_write_pte - update PTEs by writing them manually 735 * 736 * @ib: indirect buffer to fill with commands 737 * @pe: addr of the page entry 738 * @value: dst addr to write into pe 739 * @count: number of page entries to update 740 * @incr: increase next addr by incr bytes 741 * 742 * Update PTEs by writing them manually using sDMA (CIK). 743 */ 744 static void cik_sdma_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe, 745 uint64_t value, unsigned count, 746 uint32_t incr) 747 { 748 unsigned ndw = count * 2; 749 750 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_WRITE, 751 SDMA_WRITE_SUB_OPCODE_LINEAR, 0); 752 ib->ptr[ib->length_dw++] = lower_32_bits(pe); 753 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 754 ib->ptr[ib->length_dw++] = ndw; 755 for (; ndw > 0; ndw -= 2) { 756 ib->ptr[ib->length_dw++] = lower_32_bits(value); 757 ib->ptr[ib->length_dw++] = upper_32_bits(value); 758 value += incr; 759 } 760 } 761 762 /** 763 * cik_sdma_vm_set_pte_pde - update the page tables using sDMA 764 * 765 * @ib: indirect buffer to fill with commands 766 * @pe: addr of the page entry 767 * @addr: dst addr to write into pe 768 * @count: number of page entries to update 769 * @incr: increase next addr by incr bytes 770 * @flags: access flags 771 * 772 * Update the page tables using sDMA (CIK). 773 */ 774 static void cik_sdma_vm_set_pte_pde(struct amdgpu_ib *ib, uint64_t pe, 775 uint64_t addr, unsigned count, 776 uint32_t incr, uint64_t flags) 777 { 778 /* for physically contiguous pages (vram) */ 779 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_GENERATE_PTE_PDE, 0, 0); 780 ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */ 781 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 782 ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */ 783 ib->ptr[ib->length_dw++] = upper_32_bits(flags); 784 ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */ 785 ib->ptr[ib->length_dw++] = upper_32_bits(addr); 786 ib->ptr[ib->length_dw++] = incr; /* increment size */ 787 ib->ptr[ib->length_dw++] = 0; 788 ib->ptr[ib->length_dw++] = count; /* number of entries */ 789 } 790 791 /** 792 * cik_sdma_ring_pad_ib - pad the IB to the required number of dw 793 * 794 * @ring: amdgpu_ring structure holding ring information 795 * @ib: indirect buffer to fill with padding 796 * 797 */ 798 static void cik_sdma_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib) 799 { 800 struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring); 801 u32 pad_count; 802 int i; 803 804 pad_count = (-ib->length_dw) & 7; 805 for (i = 0; i < pad_count; i++) 806 if (sdma && sdma->burst_nop && (i == 0)) 807 ib->ptr[ib->length_dw++] = 808 SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0) | 809 SDMA_NOP_COUNT(pad_count - 1); 810 else 811 ib->ptr[ib->length_dw++] = 812 SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0); 813 } 814 815 /** 816 * cik_sdma_ring_emit_pipeline_sync - sync the pipeline 817 * 818 * @ring: amdgpu_ring pointer 819 * 820 * Make sure all previous operations are completed (CIK). 821 */ 822 static void cik_sdma_ring_emit_pipeline_sync(struct amdgpu_ring *ring) 823 { 824 uint32_t seq = ring->fence_drv.sync_seq; 825 uint64_t addr = ring->fence_drv.gpu_addr; 826 827 /* wait for idle */ 828 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, 829 SDMA_POLL_REG_MEM_EXTRA_OP(0) | 830 SDMA_POLL_REG_MEM_EXTRA_FUNC(3) | /* equal */ 831 SDMA_POLL_REG_MEM_EXTRA_M)); 832 amdgpu_ring_write(ring, addr & 0xfffffffc); 833 amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff); 834 amdgpu_ring_write(ring, seq); /* reference */ 835 amdgpu_ring_write(ring, 0xffffffff); /* mask */ 836 amdgpu_ring_write(ring, (0xfff << 16) | 4); /* retry count, poll interval */ 837 } 838 839 /** 840 * cik_sdma_ring_emit_vm_flush - cik vm flush using sDMA 841 * 842 * @ring: amdgpu_ring pointer 843 * @vmid: vmid number to use 844 * @pd_addr: address 845 * 846 * Update the page table base and flush the VM TLB 847 * using sDMA (CIK). 848 */ 849 static void cik_sdma_ring_emit_vm_flush(struct amdgpu_ring *ring, 850 unsigned vmid, uint64_t pd_addr) 851 { 852 u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(0) | 853 SDMA_POLL_REG_MEM_EXTRA_FUNC(0)); /* always */ 854 855 amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr); 856 857 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits)); 858 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2); 859 amdgpu_ring_write(ring, 0); 860 amdgpu_ring_write(ring, 0); /* reference */ 861 amdgpu_ring_write(ring, 0); /* mask */ 862 amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */ 863 } 864 865 static void cik_sdma_ring_emit_wreg(struct amdgpu_ring *ring, 866 uint32_t reg, uint32_t val) 867 { 868 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); 869 amdgpu_ring_write(ring, reg); 870 amdgpu_ring_write(ring, val); 871 } 872 873 static void cik_enable_sdma_mgcg(struct amdgpu_device *adev, 874 bool enable) 875 { 876 u32 orig, data; 877 878 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) { 879 WREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET, 0x00000100); 880 WREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET, 0x00000100); 881 } else { 882 orig = data = RREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET); 883 data |= 0xff000000; 884 if (data != orig) 885 WREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET, data); 886 887 orig = data = RREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET); 888 data |= 0xff000000; 889 if (data != orig) 890 WREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET, data); 891 } 892 } 893 894 static void cik_enable_sdma_mgls(struct amdgpu_device *adev, 895 bool enable) 896 { 897 u32 orig, data; 898 899 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) { 900 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET); 901 data |= 0x100; 902 if (orig != data) 903 WREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET, data); 904 905 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET); 906 data |= 0x100; 907 if (orig != data) 908 WREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET, data); 909 } else { 910 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET); 911 data &= ~0x100; 912 if (orig != data) 913 WREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET, data); 914 915 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET); 916 data &= ~0x100; 917 if (orig != data) 918 WREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET, data); 919 } 920 } 921 922 static const struct amdgpu_vm_pte_funcs cik_sdma_vm_pte_funcs = { 923 .copy_pte_num_dw = 7, 924 .copy_pte = cik_sdma_vm_copy_pte, 925 926 .write_pte = cik_sdma_vm_write_pte, 927 .set_pte_pde = cik_sdma_vm_set_pte_pde, 928 }; 929 930 static int cik_sdma_early_init(struct amdgpu_ip_block *ip_block) 931 { 932 struct amdgpu_device *adev = ip_block->adev; 933 int r; 934 935 adev->sdma.num_instances = SDMA_MAX_INSTANCE; 936 937 r = cik_sdma_init_microcode(adev); 938 if (r) 939 return r; 940 941 cik_sdma_set_ring_funcs(adev); 942 cik_sdma_set_irq_funcs(adev); 943 amdgpu_sdma_set_vm_pte_scheds(adev, &cik_sdma_vm_pte_funcs); 944 945 return 0; 946 } 947 948 static int cik_sdma_sw_init(struct amdgpu_ip_block *ip_block) 949 { 950 struct amdgpu_ring *ring; 951 struct amdgpu_device *adev = ip_block->adev; 952 int r, i; 953 954 /* SDMA trap event */ 955 r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 224, 956 &adev->sdma.trap_irq); 957 if (r) 958 return r; 959 960 /* SDMA Privileged inst */ 961 r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 241, 962 &adev->sdma.illegal_inst_irq); 963 if (r) 964 return r; 965 966 /* SDMA Privileged inst */ 967 r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 247, 968 &adev->sdma.illegal_inst_irq); 969 if (r) 970 return r; 971 972 for (i = 0; i < adev->sdma.num_instances; i++) { 973 ring = &adev->sdma.instance[i].ring; 974 ring->ring_obj = NULL; 975 sprintf(ring->name, "sdma%d", i); 976 r = amdgpu_ring_init(adev, ring, 1024, 977 &adev->sdma.trap_irq, 978 (i == 0) ? AMDGPU_SDMA_IRQ_INSTANCE0 : 979 AMDGPU_SDMA_IRQ_INSTANCE1, 980 AMDGPU_RING_PRIO_DEFAULT, NULL); 981 if (r) 982 return r; 983 } 984 985 return r; 986 } 987 988 static int cik_sdma_sw_fini(struct amdgpu_ip_block *ip_block) 989 { 990 struct amdgpu_device *adev = ip_block->adev; 991 int i; 992 993 for (i = 0; i < adev->sdma.num_instances; i++) 994 amdgpu_ring_fini(&adev->sdma.instance[i].ring); 995 996 cik_sdma_free_microcode(adev); 997 return 0; 998 } 999 1000 static int cik_sdma_hw_init(struct amdgpu_ip_block *ip_block) 1001 { 1002 struct amdgpu_device *adev = ip_block->adev; 1003 int r; 1004 1005 r = cik_sdma_start(adev); 1006 if (r) 1007 return r; 1008 1009 cik_sdma_set_buffer_funcs(adev); 1010 1011 return 0; 1012 } 1013 1014 static int cik_sdma_hw_fini(struct amdgpu_ip_block *ip_block) 1015 { 1016 struct amdgpu_device *adev = ip_block->adev; 1017 1018 cik_ctx_switch_enable(adev, false); 1019 cik_sdma_enable(adev, false); 1020 1021 return 0; 1022 } 1023 1024 static int cik_sdma_suspend(struct amdgpu_ip_block *ip_block) 1025 { 1026 return cik_sdma_hw_fini(ip_block); 1027 } 1028 1029 static int cik_sdma_resume(struct amdgpu_ip_block *ip_block) 1030 { 1031 cik_sdma_soft_reset(ip_block); 1032 1033 return cik_sdma_hw_init(ip_block); 1034 } 1035 1036 static bool cik_sdma_is_idle(struct amdgpu_ip_block *ip_block) 1037 { 1038 struct amdgpu_device *adev = ip_block->adev; 1039 u32 tmp = RREG32(mmSRBM_STATUS2); 1040 1041 if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK | 1042 SRBM_STATUS2__SDMA1_BUSY_MASK)) 1043 return false; 1044 1045 return true; 1046 } 1047 1048 static int cik_sdma_wait_for_idle(struct amdgpu_ip_block *ip_block) 1049 { 1050 unsigned i; 1051 struct amdgpu_device *adev = ip_block->adev; 1052 1053 for (i = 0; i < adev->usec_timeout; i++) { 1054 if (cik_sdma_is_idle(ip_block)) 1055 return 0; 1056 udelay(1); 1057 } 1058 return -ETIMEDOUT; 1059 } 1060 1061 static int cik_sdma_soft_reset(struct amdgpu_ip_block *ip_block) 1062 { 1063 u32 srbm_soft_reset = 0; 1064 struct amdgpu_device *adev = ip_block->adev; 1065 u32 tmp; 1066 1067 /* sdma0 */ 1068 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET); 1069 tmp |= SDMA0_F32_CNTL__HALT_MASK; 1070 WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp); 1071 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK; 1072 1073 /* sdma1 */ 1074 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET); 1075 tmp |= SDMA0_F32_CNTL__HALT_MASK; 1076 WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp); 1077 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK; 1078 1079 if (srbm_soft_reset) { 1080 tmp = RREG32(mmSRBM_SOFT_RESET); 1081 tmp |= srbm_soft_reset; 1082 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp); 1083 WREG32(mmSRBM_SOFT_RESET, tmp); 1084 tmp = RREG32(mmSRBM_SOFT_RESET); 1085 1086 udelay(50); 1087 1088 tmp &= ~srbm_soft_reset; 1089 WREG32(mmSRBM_SOFT_RESET, tmp); 1090 tmp = RREG32(mmSRBM_SOFT_RESET); 1091 1092 /* Wait a little for things to settle down */ 1093 udelay(50); 1094 } 1095 1096 return 0; 1097 } 1098 1099 static int cik_sdma_set_trap_irq_state(struct amdgpu_device *adev, 1100 struct amdgpu_irq_src *src, 1101 unsigned type, 1102 enum amdgpu_interrupt_state state) 1103 { 1104 u32 sdma_cntl; 1105 1106 switch (type) { 1107 case AMDGPU_SDMA_IRQ_INSTANCE0: 1108 switch (state) { 1109 case AMDGPU_IRQ_STATE_DISABLE: 1110 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET); 1111 sdma_cntl &= ~SDMA0_CNTL__TRAP_ENABLE_MASK; 1112 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl); 1113 break; 1114 case AMDGPU_IRQ_STATE_ENABLE: 1115 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET); 1116 sdma_cntl |= SDMA0_CNTL__TRAP_ENABLE_MASK; 1117 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl); 1118 break; 1119 default: 1120 break; 1121 } 1122 break; 1123 case AMDGPU_SDMA_IRQ_INSTANCE1: 1124 switch (state) { 1125 case AMDGPU_IRQ_STATE_DISABLE: 1126 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET); 1127 sdma_cntl &= ~SDMA0_CNTL__TRAP_ENABLE_MASK; 1128 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl); 1129 break; 1130 case AMDGPU_IRQ_STATE_ENABLE: 1131 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET); 1132 sdma_cntl |= SDMA0_CNTL__TRAP_ENABLE_MASK; 1133 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl); 1134 break; 1135 default: 1136 break; 1137 } 1138 break; 1139 default: 1140 break; 1141 } 1142 return 0; 1143 } 1144 1145 static int cik_sdma_process_trap_irq(struct amdgpu_device *adev, 1146 struct amdgpu_irq_src *source, 1147 struct amdgpu_iv_entry *entry) 1148 { 1149 u8 instance_id, queue_id; 1150 1151 instance_id = (entry->ring_id & 0x3) >> 0; 1152 queue_id = (entry->ring_id & 0xc) >> 2; 1153 DRM_DEBUG("IH: SDMA trap\n"); 1154 switch (instance_id) { 1155 case 0: 1156 switch (queue_id) { 1157 case 0: 1158 amdgpu_fence_process(&adev->sdma.instance[0].ring); 1159 break; 1160 case 1: 1161 /* XXX compute */ 1162 break; 1163 case 2: 1164 /* XXX compute */ 1165 break; 1166 } 1167 break; 1168 case 1: 1169 switch (queue_id) { 1170 case 0: 1171 amdgpu_fence_process(&adev->sdma.instance[1].ring); 1172 break; 1173 case 1: 1174 /* XXX compute */ 1175 break; 1176 case 2: 1177 /* XXX compute */ 1178 break; 1179 } 1180 break; 1181 } 1182 1183 return 0; 1184 } 1185 1186 static int cik_sdma_process_illegal_inst_irq(struct amdgpu_device *adev, 1187 struct amdgpu_irq_src *source, 1188 struct amdgpu_iv_entry *entry) 1189 { 1190 u8 instance_id; 1191 1192 DRM_ERROR("Illegal instruction in SDMA command stream\n"); 1193 instance_id = (entry->ring_id & 0x3) >> 0; 1194 drm_sched_fault(&adev->sdma.instance[instance_id].ring.sched); 1195 return 0; 1196 } 1197 1198 static int cik_sdma_set_clockgating_state(struct amdgpu_ip_block *ip_block, 1199 enum amd_clockgating_state state) 1200 { 1201 bool gate = false; 1202 struct amdgpu_device *adev = ip_block->adev; 1203 1204 if (state == AMD_CG_STATE_GATE) 1205 gate = true; 1206 1207 cik_enable_sdma_mgcg(adev, gate); 1208 cik_enable_sdma_mgls(adev, gate); 1209 1210 return 0; 1211 } 1212 1213 static int cik_sdma_set_powergating_state(struct amdgpu_ip_block *ip_block, 1214 enum amd_powergating_state state) 1215 { 1216 return 0; 1217 } 1218 1219 static const struct amd_ip_funcs cik_sdma_ip_funcs = { 1220 .name = "cik_sdma", 1221 .early_init = cik_sdma_early_init, 1222 .sw_init = cik_sdma_sw_init, 1223 .sw_fini = cik_sdma_sw_fini, 1224 .hw_init = cik_sdma_hw_init, 1225 .hw_fini = cik_sdma_hw_fini, 1226 .suspend = cik_sdma_suspend, 1227 .resume = cik_sdma_resume, 1228 .is_idle = cik_sdma_is_idle, 1229 .wait_for_idle = cik_sdma_wait_for_idle, 1230 .soft_reset = cik_sdma_soft_reset, 1231 .set_clockgating_state = cik_sdma_set_clockgating_state, 1232 .set_powergating_state = cik_sdma_set_powergating_state, 1233 }; 1234 1235 static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = { 1236 .type = AMDGPU_RING_TYPE_SDMA, 1237 .align_mask = 0xf, 1238 .nop = SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0), 1239 .support_64bit_ptrs = false, 1240 .get_rptr = cik_sdma_ring_get_rptr, 1241 .get_wptr = cik_sdma_ring_get_wptr, 1242 .set_wptr = cik_sdma_ring_set_wptr, 1243 .emit_frame_size = 1244 6 + /* cik_sdma_ring_emit_hdp_flush */ 1245 3 + /* hdp invalidate */ 1246 6 + /* cik_sdma_ring_emit_pipeline_sync */ 1247 CIK_FLUSH_GPU_TLB_NUM_WREG * 3 + 6 + /* cik_sdma_ring_emit_vm_flush */ 1248 9 + 9 + 9, /* cik_sdma_ring_emit_fence x3 for user fence, vm fence */ 1249 .emit_ib_size = 7 + 4, /* cik_sdma_ring_emit_ib */ 1250 .emit_ib = cik_sdma_ring_emit_ib, 1251 .emit_fence = cik_sdma_ring_emit_fence, 1252 .emit_pipeline_sync = cik_sdma_ring_emit_pipeline_sync, 1253 .emit_vm_flush = cik_sdma_ring_emit_vm_flush, 1254 .emit_hdp_flush = cik_sdma_ring_emit_hdp_flush, 1255 .test_ring = cik_sdma_ring_test_ring, 1256 .test_ib = cik_sdma_ring_test_ib, 1257 .insert_nop = cik_sdma_ring_insert_nop, 1258 .pad_ib = cik_sdma_ring_pad_ib, 1259 .emit_wreg = cik_sdma_ring_emit_wreg, 1260 }; 1261 1262 static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev) 1263 { 1264 int i; 1265 1266 for (i = 0; i < adev->sdma.num_instances; i++) { 1267 adev->sdma.instance[i].ring.funcs = &cik_sdma_ring_funcs; 1268 adev->sdma.instance[i].ring.me = i; 1269 } 1270 } 1271 1272 static const struct amdgpu_irq_src_funcs cik_sdma_trap_irq_funcs = { 1273 .set = cik_sdma_set_trap_irq_state, 1274 .process = cik_sdma_process_trap_irq, 1275 }; 1276 1277 static const struct amdgpu_irq_src_funcs cik_sdma_illegal_inst_irq_funcs = { 1278 .process = cik_sdma_process_illegal_inst_irq, 1279 }; 1280 1281 static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev) 1282 { 1283 adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST; 1284 adev->sdma.trap_irq.funcs = &cik_sdma_trap_irq_funcs; 1285 adev->sdma.illegal_inst_irq.funcs = &cik_sdma_illegal_inst_irq_funcs; 1286 } 1287 1288 /** 1289 * cik_sdma_emit_copy_buffer - copy buffer using the sDMA engine 1290 * 1291 * @ib: indirect buffer to copy to 1292 * @src_offset: src GPU address 1293 * @dst_offset: dst GPU address 1294 * @byte_count: number of bytes to xfer 1295 * @copy_flags: unused 1296 * 1297 * Copy GPU buffers using the DMA engine (CIK). 1298 * Used by the amdgpu ttm implementation to move pages if 1299 * registered as the asic copy callback. 1300 */ 1301 static void cik_sdma_emit_copy_buffer(struct amdgpu_ib *ib, 1302 uint64_t src_offset, 1303 uint64_t dst_offset, 1304 uint32_t byte_count, 1305 uint32_t copy_flags) 1306 { 1307 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_COPY, SDMA_COPY_SUB_OPCODE_LINEAR, 0); 1308 ib->ptr[ib->length_dw++] = byte_count; 1309 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ 1310 ib->ptr[ib->length_dw++] = lower_32_bits(src_offset); 1311 ib->ptr[ib->length_dw++] = upper_32_bits(src_offset); 1312 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset); 1313 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset); 1314 } 1315 1316 /** 1317 * cik_sdma_emit_fill_buffer - fill buffer using the sDMA engine 1318 * 1319 * @ib: indirect buffer to fill 1320 * @src_data: value to write to buffer 1321 * @dst_offset: dst GPU address 1322 * @byte_count: number of bytes to xfer 1323 * 1324 * Fill GPU buffers using the DMA engine (CIK). 1325 */ 1326 static void cik_sdma_emit_fill_buffer(struct amdgpu_ib *ib, 1327 uint32_t src_data, 1328 uint64_t dst_offset, 1329 uint32_t byte_count) 1330 { 1331 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_CONSTANT_FILL, 0, 0); 1332 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset); 1333 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset); 1334 ib->ptr[ib->length_dw++] = src_data; 1335 ib->ptr[ib->length_dw++] = byte_count; 1336 } 1337 1338 static const struct amdgpu_buffer_funcs cik_sdma_buffer_funcs = { 1339 .copy_max_bytes = 0x1fffff, 1340 .copy_num_dw = 7, 1341 .emit_copy_buffer = cik_sdma_emit_copy_buffer, 1342 1343 .fill_max_bytes = 0x1fffff, 1344 .fill_num_dw = 5, 1345 .emit_fill_buffer = cik_sdma_emit_fill_buffer, 1346 }; 1347 1348 static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev) 1349 { 1350 amdgpu_sdma_set_buffer_funcs_scheds(adev, &cik_sdma_buffer_funcs); 1351 } 1352 1353 const struct amdgpu_ip_block_version cik_sdma_ip_block = 1354 { 1355 .type = AMD_IP_BLOCK_TYPE_SDMA, 1356 .major = 2, 1357 .minor = 0, 1358 .rev = 0, 1359 .funcs = &cik_sdma_ip_funcs, 1360 }; 1361