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 #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 "cikd.h" 30 #include "cik.h" 31 32 #include "bif/bif_4_1_d.h" 33 #include "bif/bif_4_1_sh_mask.h" 34 35 #include "gca/gfx_7_2_d.h" 36 #include "gca/gfx_7_2_enum.h" 37 #include "gca/gfx_7_2_sh_mask.h" 38 39 #include "gmc/gmc_7_1_d.h" 40 #include "gmc/gmc_7_1_sh_mask.h" 41 42 #include "oss/oss_2_0_d.h" 43 #include "oss/oss_2_0_sh_mask.h" 44 45 static const u32 sdma_offsets[SDMA_MAX_INSTANCE] = 46 { 47 SDMA0_REGISTER_OFFSET, 48 SDMA1_REGISTER_OFFSET 49 }; 50 51 static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev); 52 static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev); 53 static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev); 54 static void cik_sdma_set_vm_pte_funcs(struct amdgpu_device *adev); 55 56 MODULE_FIRMWARE("radeon/bonaire_sdma.bin"); 57 MODULE_FIRMWARE("radeon/bonaire_sdma1.bin"); 58 MODULE_FIRMWARE("radeon/hawaii_sdma.bin"); 59 MODULE_FIRMWARE("radeon/hawaii_sdma1.bin"); 60 MODULE_FIRMWARE("radeon/kaveri_sdma.bin"); 61 MODULE_FIRMWARE("radeon/kaveri_sdma1.bin"); 62 MODULE_FIRMWARE("radeon/kabini_sdma.bin"); 63 MODULE_FIRMWARE("radeon/kabini_sdma1.bin"); 64 MODULE_FIRMWARE("radeon/mullins_sdma.bin"); 65 MODULE_FIRMWARE("radeon/mullins_sdma1.bin"); 66 67 u32 amdgpu_cik_gpu_check_soft_reset(struct amdgpu_device *adev); 68 69 /* 70 * sDMA - System DMA 71 * Starting with CIK, the GPU has new asynchronous 72 * DMA engines. These engines are used for compute 73 * and gfx. There are two DMA engines (SDMA0, SDMA1) 74 * and each one supports 1 ring buffer used for gfx 75 * and 2 queues used for compute. 76 * 77 * The programming model is very similar to the CP 78 * (ring buffer, IBs, etc.), but sDMA has it's own 79 * packet format that is different from the PM4 format 80 * used by the CP. sDMA supports copying data, writing 81 * embedded data, solid fills, and a number of other 82 * things. It also has support for tiling/detiling of 83 * buffers. 84 */ 85 86 /** 87 * cik_sdma_init_microcode - load ucode images from disk 88 * 89 * @adev: amdgpu_device pointer 90 * 91 * Use the firmware interface to load the ucode images into 92 * the driver (not loaded into hw). 93 * Returns 0 on success, error on failure. 94 */ 95 static int cik_sdma_init_microcode(struct amdgpu_device *adev) 96 { 97 const char *chip_name; 98 char fw_name[30]; 99 int err = 0, i; 100 101 DRM_DEBUG("\n"); 102 103 switch (adev->asic_type) { 104 case CHIP_BONAIRE: 105 chip_name = "bonaire"; 106 break; 107 case CHIP_HAWAII: 108 chip_name = "hawaii"; 109 break; 110 case CHIP_KAVERI: 111 chip_name = "kaveri"; 112 break; 113 case CHIP_KABINI: 114 chip_name = "kabini"; 115 break; 116 case CHIP_MULLINS: 117 chip_name = "mullins"; 118 break; 119 default: BUG(); 120 } 121 122 for (i = 0; i < adev->sdma.num_instances; i++) { 123 if (i == 0) 124 snprintf(fw_name, sizeof(fw_name), "radeon/%s_sdma.bin", chip_name); 125 else 126 snprintf(fw_name, sizeof(fw_name), "radeon/%s_sdma1.bin", chip_name); 127 err = request_firmware(&adev->sdma.instance[i].fw, fw_name, adev->dev); 128 if (err) 129 goto out; 130 err = amdgpu_ucode_validate(adev->sdma.instance[i].fw); 131 } 132 out: 133 if (err) { 134 printk(KERN_ERR 135 "cik_sdma: Failed to load firmware \"%s\"\n", 136 fw_name); 137 for (i = 0; i < adev->sdma.num_instances; i++) { 138 release_firmware(adev->sdma.instance[i].fw); 139 adev->sdma.instance[i].fw = NULL; 140 } 141 } 142 return err; 143 } 144 145 /** 146 * cik_sdma_ring_get_rptr - get the current read pointer 147 * 148 * @ring: amdgpu ring pointer 149 * 150 * Get the current rptr from the hardware (CIK+). 151 */ 152 static uint32_t cik_sdma_ring_get_rptr(struct amdgpu_ring *ring) 153 { 154 u32 rptr; 155 156 rptr = ring->adev->wb.wb[ring->rptr_offs]; 157 158 return (rptr & 0x3fffc) >> 2; 159 } 160 161 /** 162 * cik_sdma_ring_get_wptr - get the current write pointer 163 * 164 * @ring: amdgpu ring pointer 165 * 166 * Get the current wptr from the hardware (CIK+). 167 */ 168 static uint32_t cik_sdma_ring_get_wptr(struct amdgpu_ring *ring) 169 { 170 struct amdgpu_device *adev = ring->adev; 171 u32 me = (ring == &adev->sdma.instance[0].ring) ? 0 : 1; 172 173 return (RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me]) & 0x3fffc) >> 2; 174 } 175 176 /** 177 * cik_sdma_ring_set_wptr - commit the write pointer 178 * 179 * @ring: amdgpu ring pointer 180 * 181 * Write the wptr back to the hardware (CIK+). 182 */ 183 static void cik_sdma_ring_set_wptr(struct amdgpu_ring *ring) 184 { 185 struct amdgpu_device *adev = ring->adev; 186 u32 me = (ring == &adev->sdma.instance[0].ring) ? 0 : 1; 187 188 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me], (ring->wptr << 2) & 0x3fffc); 189 } 190 191 static void cik_sdma_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count) 192 { 193 struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring); 194 int i; 195 196 for (i = 0; i < count; i++) 197 if (sdma && sdma->burst_nop && (i == 0)) 198 amdgpu_ring_write(ring, ring->nop | 199 SDMA_NOP_COUNT(count - 1)); 200 else 201 amdgpu_ring_write(ring, ring->nop); 202 } 203 204 /** 205 * cik_sdma_ring_emit_ib - Schedule an IB on the DMA engine 206 * 207 * @ring: amdgpu ring pointer 208 * @ib: IB object to schedule 209 * 210 * Schedule an IB in the DMA ring (CIK). 211 */ 212 static void cik_sdma_ring_emit_ib(struct amdgpu_ring *ring, 213 struct amdgpu_ib *ib) 214 { 215 u32 extra_bits = (ib->vm ? ib->vm->ids[ring->idx].id : 0) & 0xf; 216 u32 next_rptr = ring->wptr + 5; 217 218 while ((next_rptr & 7) != 4) 219 next_rptr++; 220 221 next_rptr += 4; 222 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0)); 223 amdgpu_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc); 224 amdgpu_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xffffffff); 225 amdgpu_ring_write(ring, 1); /* number of DWs to follow */ 226 amdgpu_ring_write(ring, next_rptr); 227 228 /* IB packet must end on a 8 DW boundary */ 229 cik_sdma_ring_insert_nop(ring, (12 - (ring->wptr & 7)) % 8); 230 231 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_INDIRECT_BUFFER, 0, extra_bits)); 232 amdgpu_ring_write(ring, ib->gpu_addr & 0xffffffe0); /* base must be 32 byte aligned */ 233 amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xffffffff); 234 amdgpu_ring_write(ring, ib->length_dw); 235 236 } 237 238 /** 239 * cik_sdma_ring_emit_hdp_flush - emit an hdp flush on the DMA ring 240 * 241 * @ring: amdgpu ring pointer 242 * 243 * Emit an hdp flush packet on the requested DMA ring. 244 */ 245 static void cik_sdma_ring_emit_hdp_flush(struct amdgpu_ring *ring) 246 { 247 u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(1) | 248 SDMA_POLL_REG_MEM_EXTRA_FUNC(3)); /* == */ 249 u32 ref_and_mask; 250 251 if (ring == &ring->adev->sdma.instance[0].ring) 252 ref_and_mask = GPU_HDP_FLUSH_DONE__SDMA0_MASK; 253 else 254 ref_and_mask = GPU_HDP_FLUSH_DONE__SDMA1_MASK; 255 256 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits)); 257 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_DONE << 2); 258 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_REQ << 2); 259 amdgpu_ring_write(ring, ref_and_mask); /* reference */ 260 amdgpu_ring_write(ring, ref_and_mask); /* mask */ 261 amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */ 262 } 263 264 /** 265 * cik_sdma_ring_emit_fence - emit a fence on the DMA ring 266 * 267 * @ring: amdgpu ring pointer 268 * @fence: amdgpu fence object 269 * 270 * Add a DMA fence packet to the ring to write 271 * the fence seq number and DMA trap packet to generate 272 * an interrupt if needed (CIK). 273 */ 274 static void cik_sdma_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq, 275 unsigned flags) 276 { 277 bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT; 278 /* write the fence */ 279 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_FENCE, 0, 0)); 280 amdgpu_ring_write(ring, lower_32_bits(addr)); 281 amdgpu_ring_write(ring, upper_32_bits(addr)); 282 amdgpu_ring_write(ring, lower_32_bits(seq)); 283 284 /* optionally write high bits as well */ 285 if (write64bit) { 286 addr += 4; 287 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_FENCE, 0, 0)); 288 amdgpu_ring_write(ring, lower_32_bits(addr)); 289 amdgpu_ring_write(ring, upper_32_bits(addr)); 290 amdgpu_ring_write(ring, upper_32_bits(seq)); 291 } 292 293 /* generate an interrupt */ 294 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_TRAP, 0, 0)); 295 } 296 297 /** 298 * cik_sdma_gfx_stop - stop the gfx async dma engines 299 * 300 * @adev: amdgpu_device pointer 301 * 302 * Stop the gfx async dma ring buffers (CIK). 303 */ 304 static void cik_sdma_gfx_stop(struct amdgpu_device *adev) 305 { 306 struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].ring; 307 struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].ring; 308 u32 rb_cntl; 309 int i; 310 311 if ((adev->mman.buffer_funcs_ring == sdma0) || 312 (adev->mman.buffer_funcs_ring == sdma1)) 313 amdgpu_ttm_set_active_vram_size(adev, adev->mc.visible_vram_size); 314 315 for (i = 0; i < adev->sdma.num_instances; i++) { 316 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]); 317 rb_cntl &= ~SDMA0_GFX_RB_CNTL__RB_ENABLE_MASK; 318 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); 319 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], 0); 320 } 321 sdma0->ready = false; 322 sdma1->ready = false; 323 } 324 325 /** 326 * cik_sdma_rlc_stop - stop the compute async dma engines 327 * 328 * @adev: amdgpu_device pointer 329 * 330 * Stop the compute async dma queues (CIK). 331 */ 332 static void cik_sdma_rlc_stop(struct amdgpu_device *adev) 333 { 334 /* XXX todo */ 335 } 336 337 /** 338 * cik_sdma_enable - stop the async dma engines 339 * 340 * @adev: amdgpu_device pointer 341 * @enable: enable/disable the DMA MEs. 342 * 343 * Halt or unhalt the async dma engines (CIK). 344 */ 345 static void cik_sdma_enable(struct amdgpu_device *adev, bool enable) 346 { 347 u32 me_cntl; 348 int i; 349 350 if (enable == false) { 351 cik_sdma_gfx_stop(adev); 352 cik_sdma_rlc_stop(adev); 353 } 354 355 for (i = 0; i < adev->sdma.num_instances; i++) { 356 me_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]); 357 if (enable) 358 me_cntl &= ~SDMA0_F32_CNTL__HALT_MASK; 359 else 360 me_cntl |= SDMA0_F32_CNTL__HALT_MASK; 361 WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], me_cntl); 362 } 363 } 364 365 /** 366 * cik_sdma_gfx_resume - setup and start the async dma engines 367 * 368 * @adev: amdgpu_device pointer 369 * 370 * Set up the gfx DMA ring buffers and enable them (CIK). 371 * Returns 0 for success, error for failure. 372 */ 373 static int cik_sdma_gfx_resume(struct amdgpu_device *adev) 374 { 375 struct amdgpu_ring *ring; 376 u32 rb_cntl, ib_cntl; 377 u32 rb_bufsz; 378 u32 wb_offset; 379 int i, j, r; 380 381 for (i = 0; i < adev->sdma.num_instances; i++) { 382 ring = &adev->sdma.instance[i].ring; 383 wb_offset = (ring->rptr_offs * 4); 384 385 mutex_lock(&adev->srbm_mutex); 386 for (j = 0; j < 16; j++) { 387 cik_srbm_select(adev, 0, 0, 0, j); 388 /* SDMA GFX */ 389 WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0); 390 WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0); 391 /* XXX SDMA RLC - todo */ 392 } 393 cik_srbm_select(adev, 0, 0, 0, 0); 394 mutex_unlock(&adev->srbm_mutex); 395 396 WREG32(mmSDMA0_SEM_INCOMPLETE_TIMER_CNTL + sdma_offsets[i], 0); 397 WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0); 398 399 /* Set ring buffer size in dwords */ 400 rb_bufsz = order_base_2(ring->ring_size / 4); 401 rb_cntl = rb_bufsz << 1; 402 #ifdef __BIG_ENDIAN 403 rb_cntl |= SDMA0_GFX_RB_CNTL__RB_SWAP_ENABLE_MASK | 404 SDMA0_GFX_RB_CNTL__RPTR_WRITEBACK_SWAP_ENABLE_MASK; 405 #endif 406 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); 407 408 /* Initialize the ring buffer's read and write pointers */ 409 WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0); 410 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], 0); 411 412 /* set the wb address whether it's enabled or not */ 413 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i], 414 upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF); 415 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i], 416 ((adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC)); 417 418 rb_cntl |= SDMA0_GFX_RB_CNTL__RPTR_WRITEBACK_ENABLE_MASK; 419 420 WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8); 421 WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40); 422 423 ring->wptr = 0; 424 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], ring->wptr << 2); 425 426 /* enable DMA RB */ 427 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], 428 rb_cntl | SDMA0_GFX_RB_CNTL__RB_ENABLE_MASK); 429 430 ib_cntl = SDMA0_GFX_IB_CNTL__IB_ENABLE_MASK; 431 #ifdef __BIG_ENDIAN 432 ib_cntl |= SDMA0_GFX_IB_CNTL__IB_SWAP_ENABLE_MASK; 433 #endif 434 /* enable DMA IBs */ 435 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl); 436 437 ring->ready = true; 438 439 r = amdgpu_ring_test_ring(ring); 440 if (r) { 441 ring->ready = false; 442 return r; 443 } 444 445 if (adev->mman.buffer_funcs_ring == ring) 446 amdgpu_ttm_set_active_vram_size(adev, adev->mc.real_vram_size); 447 } 448 449 return 0; 450 } 451 452 /** 453 * cik_sdma_rlc_resume - setup and start the async dma engines 454 * 455 * @adev: amdgpu_device pointer 456 * 457 * Set up the compute DMA queues and enable them (CIK). 458 * Returns 0 for success, error for failure. 459 */ 460 static int cik_sdma_rlc_resume(struct amdgpu_device *adev) 461 { 462 /* XXX todo */ 463 return 0; 464 } 465 466 /** 467 * cik_sdma_load_microcode - load the sDMA ME ucode 468 * 469 * @adev: amdgpu_device pointer 470 * 471 * Loads the sDMA0/1 ucode. 472 * Returns 0 for success, -EINVAL if the ucode is not available. 473 */ 474 static int cik_sdma_load_microcode(struct amdgpu_device *adev) 475 { 476 const struct sdma_firmware_header_v1_0 *hdr; 477 const __le32 *fw_data; 478 u32 fw_size; 479 int i, j; 480 481 /* halt the MEs */ 482 cik_sdma_enable(adev, false); 483 484 for (i = 0; i < adev->sdma.num_instances; i++) { 485 if (!adev->sdma.instance[i].fw) 486 return -EINVAL; 487 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data; 488 amdgpu_ucode_print_sdma_hdr(&hdr->header); 489 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; 490 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version); 491 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version); 492 if (adev->sdma.instance[i].feature_version >= 20) 493 adev->sdma.instance[i].burst_nop = true; 494 fw_data = (const __le32 *) 495 (adev->sdma.instance[i].fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); 496 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], 0); 497 for (j = 0; j < fw_size; j++) 498 WREG32(mmSDMA0_UCODE_DATA + sdma_offsets[i], le32_to_cpup(fw_data++)); 499 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], adev->sdma.instance[i].fw_version); 500 } 501 502 return 0; 503 } 504 505 /** 506 * cik_sdma_start - setup and start the async dma engines 507 * 508 * @adev: amdgpu_device pointer 509 * 510 * Set up the DMA engines and enable them (CIK). 511 * Returns 0 for success, error for failure. 512 */ 513 static int cik_sdma_start(struct amdgpu_device *adev) 514 { 515 int r; 516 517 r = cik_sdma_load_microcode(adev); 518 if (r) 519 return r; 520 521 /* unhalt the MEs */ 522 cik_sdma_enable(adev, true); 523 524 /* start the gfx rings and rlc compute queues */ 525 r = cik_sdma_gfx_resume(adev); 526 if (r) 527 return r; 528 r = cik_sdma_rlc_resume(adev); 529 if (r) 530 return r; 531 532 return 0; 533 } 534 535 /** 536 * cik_sdma_ring_test_ring - simple async dma engine test 537 * 538 * @ring: amdgpu_ring structure holding ring information 539 * 540 * Test the DMA engine by writing using it to write an 541 * value to memory. (CIK). 542 * Returns 0 for success, error for failure. 543 */ 544 static int cik_sdma_ring_test_ring(struct amdgpu_ring *ring) 545 { 546 struct amdgpu_device *adev = ring->adev; 547 unsigned i; 548 unsigned index; 549 int r; 550 u32 tmp; 551 u64 gpu_addr; 552 553 r = amdgpu_wb_get(adev, &index); 554 if (r) { 555 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r); 556 return r; 557 } 558 559 gpu_addr = adev->wb.gpu_addr + (index * 4); 560 tmp = 0xCAFEDEAD; 561 adev->wb.wb[index] = cpu_to_le32(tmp); 562 563 r = amdgpu_ring_alloc(ring, 5); 564 if (r) { 565 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r); 566 amdgpu_wb_free(adev, index); 567 return r; 568 } 569 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0)); 570 amdgpu_ring_write(ring, lower_32_bits(gpu_addr)); 571 amdgpu_ring_write(ring, upper_32_bits(gpu_addr)); 572 amdgpu_ring_write(ring, 1); /* number of DWs to follow */ 573 amdgpu_ring_write(ring, 0xDEADBEEF); 574 amdgpu_ring_commit(ring); 575 576 for (i = 0; i < adev->usec_timeout; i++) { 577 tmp = le32_to_cpu(adev->wb.wb[index]); 578 if (tmp == 0xDEADBEEF) 579 break; 580 DRM_UDELAY(1); 581 } 582 583 if (i < adev->usec_timeout) { 584 DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i); 585 } else { 586 DRM_ERROR("amdgpu: ring %d test failed (0x%08X)\n", 587 ring->idx, tmp); 588 r = -EINVAL; 589 } 590 amdgpu_wb_free(adev, index); 591 592 return r; 593 } 594 595 /** 596 * cik_sdma_ring_test_ib - test an IB on the DMA engine 597 * 598 * @ring: amdgpu_ring structure holding ring information 599 * 600 * Test a simple IB in the DMA ring (CIK). 601 * Returns 0 on success, error on failure. 602 */ 603 static int cik_sdma_ring_test_ib(struct amdgpu_ring *ring) 604 { 605 struct amdgpu_device *adev = ring->adev; 606 struct amdgpu_ib ib; 607 struct fence *f = NULL; 608 unsigned i; 609 unsigned index; 610 int r; 611 u32 tmp = 0; 612 u64 gpu_addr; 613 614 r = amdgpu_wb_get(adev, &index); 615 if (r) { 616 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r); 617 return r; 618 } 619 620 gpu_addr = adev->wb.gpu_addr + (index * 4); 621 tmp = 0xCAFEDEAD; 622 adev->wb.wb[index] = cpu_to_le32(tmp); 623 memset(&ib, 0, sizeof(ib)); 624 r = amdgpu_ib_get(adev, NULL, 256, &ib); 625 if (r) { 626 DRM_ERROR("amdgpu: failed to get ib (%d).\n", r); 627 goto err0; 628 } 629 630 ib.ptr[0] = SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0); 631 ib.ptr[1] = lower_32_bits(gpu_addr); 632 ib.ptr[2] = upper_32_bits(gpu_addr); 633 ib.ptr[3] = 1; 634 ib.ptr[4] = 0xDEADBEEF; 635 ib.length_dw = 5; 636 r = amdgpu_ib_schedule(ring, 1, &ib, AMDGPU_FENCE_OWNER_UNDEFINED, 637 NULL, &f); 638 if (r) 639 goto err1; 640 641 r = fence_wait(f, false); 642 if (r) { 643 DRM_ERROR("amdgpu: fence wait failed (%d).\n", r); 644 goto err1; 645 } 646 for (i = 0; i < adev->usec_timeout; i++) { 647 tmp = le32_to_cpu(adev->wb.wb[index]); 648 if (tmp == 0xDEADBEEF) 649 break; 650 DRM_UDELAY(1); 651 } 652 if (i < adev->usec_timeout) { 653 DRM_INFO("ib test on ring %d succeeded in %u usecs\n", 654 ring->idx, i); 655 goto err1; 656 } else { 657 DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp); 658 r = -EINVAL; 659 } 660 661 err1: 662 fence_put(f); 663 amdgpu_ib_free(adev, &ib); 664 err0: 665 amdgpu_wb_free(adev, index); 666 return r; 667 } 668 669 /** 670 * cik_sdma_vm_copy_pages - update PTEs by copying them from the GART 671 * 672 * @ib: indirect buffer to fill with commands 673 * @pe: addr of the page entry 674 * @src: src addr to copy from 675 * @count: number of page entries to update 676 * 677 * Update PTEs by copying them from the GART using sDMA (CIK). 678 */ 679 static void cik_sdma_vm_copy_pte(struct amdgpu_ib *ib, 680 uint64_t pe, uint64_t src, 681 unsigned count) 682 { 683 while (count) { 684 unsigned bytes = count * 8; 685 if (bytes > 0x1FFFF8) 686 bytes = 0x1FFFF8; 687 688 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_COPY, 689 SDMA_WRITE_SUB_OPCODE_LINEAR, 0); 690 ib->ptr[ib->length_dw++] = bytes; 691 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ 692 ib->ptr[ib->length_dw++] = lower_32_bits(src); 693 ib->ptr[ib->length_dw++] = upper_32_bits(src); 694 ib->ptr[ib->length_dw++] = lower_32_bits(pe); 695 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 696 697 pe += bytes; 698 src += bytes; 699 count -= bytes / 8; 700 } 701 } 702 703 /** 704 * cik_sdma_vm_write_pages - update PTEs by writing them manually 705 * 706 * @ib: indirect buffer to fill with commands 707 * @pe: addr of the page entry 708 * @addr: dst addr to write into pe 709 * @count: number of page entries to update 710 * @incr: increase next addr by incr bytes 711 * @flags: access flags 712 * 713 * Update PTEs by writing them manually using sDMA (CIK). 714 */ 715 static void cik_sdma_vm_write_pte(struct amdgpu_ib *ib, 716 const dma_addr_t *pages_addr, uint64_t pe, 717 uint64_t addr, unsigned count, 718 uint32_t incr, uint32_t flags) 719 { 720 uint64_t value; 721 unsigned ndw; 722 723 while (count) { 724 ndw = count * 2; 725 if (ndw > 0xFFFFE) 726 ndw = 0xFFFFE; 727 728 /* for non-physically contiguous pages (system) */ 729 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_WRITE, 730 SDMA_WRITE_SUB_OPCODE_LINEAR, 0); 731 ib->ptr[ib->length_dw++] = pe; 732 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 733 ib->ptr[ib->length_dw++] = ndw; 734 for (; ndw > 0; ndw -= 2, --count, pe += 8) { 735 value = amdgpu_vm_map_gart(pages_addr, addr); 736 addr += incr; 737 value |= flags; 738 ib->ptr[ib->length_dw++] = value; 739 ib->ptr[ib->length_dw++] = upper_32_bits(value); 740 } 741 } 742 } 743 744 /** 745 * cik_sdma_vm_set_pages - update the page tables using sDMA 746 * 747 * @ib: indirect buffer to fill with commands 748 * @pe: addr of the page entry 749 * @addr: dst addr to write into pe 750 * @count: number of page entries to update 751 * @incr: increase next addr by incr bytes 752 * @flags: access flags 753 * 754 * Update the page tables using sDMA (CIK). 755 */ 756 static void cik_sdma_vm_set_pte_pde(struct amdgpu_ib *ib, 757 uint64_t pe, 758 uint64_t addr, unsigned count, 759 uint32_t incr, uint32_t flags) 760 { 761 uint64_t value; 762 unsigned ndw; 763 764 while (count) { 765 ndw = count; 766 if (ndw > 0x7FFFF) 767 ndw = 0x7FFFF; 768 769 if (flags & AMDGPU_PTE_VALID) 770 value = addr; 771 else 772 value = 0; 773 774 /* for physically contiguous pages (vram) */ 775 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_GENERATE_PTE_PDE, 0, 0); 776 ib->ptr[ib->length_dw++] = pe; /* dst addr */ 777 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 778 ib->ptr[ib->length_dw++] = flags; /* mask */ 779 ib->ptr[ib->length_dw++] = 0; 780 ib->ptr[ib->length_dw++] = value; /* value */ 781 ib->ptr[ib->length_dw++] = upper_32_bits(value); 782 ib->ptr[ib->length_dw++] = incr; /* increment size */ 783 ib->ptr[ib->length_dw++] = 0; 784 ib->ptr[ib->length_dw++] = ndw; /* number of entries */ 785 786 pe += ndw * 8; 787 addr += ndw * incr; 788 count -= ndw; 789 } 790 } 791 792 /** 793 * cik_sdma_vm_pad_ib - pad the IB to the required number of dw 794 * 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_get_sdma_instance(ring); 801 u32 pad_count; 802 int i; 803 804 pad_count = (8 - (ib->length_dw & 0x7)) % 8; 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_vm_flush - cik vm flush using sDMA 817 * 818 * @ring: amdgpu_ring pointer 819 * @vm: amdgpu_vm pointer 820 * 821 * Update the page table base and flush the VM TLB 822 * using sDMA (CIK). 823 */ 824 static void cik_sdma_ring_emit_vm_flush(struct amdgpu_ring *ring, 825 unsigned vm_id, uint64_t pd_addr) 826 { 827 u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(0) | 828 SDMA_POLL_REG_MEM_EXTRA_FUNC(0)); /* always */ 829 830 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); 831 if (vm_id < 8) { 832 amdgpu_ring_write(ring, (mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vm_id)); 833 } else { 834 amdgpu_ring_write(ring, (mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vm_id - 8)); 835 } 836 amdgpu_ring_write(ring, pd_addr >> 12); 837 838 /* flush TLB */ 839 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); 840 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST); 841 amdgpu_ring_write(ring, 1 << vm_id); 842 843 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits)); 844 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2); 845 amdgpu_ring_write(ring, 0); 846 amdgpu_ring_write(ring, 0); /* reference */ 847 amdgpu_ring_write(ring, 0); /* mask */ 848 amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */ 849 } 850 851 static void cik_enable_sdma_mgcg(struct amdgpu_device *adev, 852 bool enable) 853 { 854 u32 orig, data; 855 856 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_SDMA_MGCG)) { 857 WREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET, 0x00000100); 858 WREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET, 0x00000100); 859 } else { 860 orig = data = RREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET); 861 data |= 0xff000000; 862 if (data != orig) 863 WREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET, data); 864 865 orig = data = RREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET); 866 data |= 0xff000000; 867 if (data != orig) 868 WREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET, data); 869 } 870 } 871 872 static void cik_enable_sdma_mgls(struct amdgpu_device *adev, 873 bool enable) 874 { 875 u32 orig, data; 876 877 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_SDMA_LS)) { 878 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET); 879 data |= 0x100; 880 if (orig != data) 881 WREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET, data); 882 883 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET); 884 data |= 0x100; 885 if (orig != data) 886 WREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET, data); 887 } else { 888 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET); 889 data &= ~0x100; 890 if (orig != data) 891 WREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET, data); 892 893 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET); 894 data &= ~0x100; 895 if (orig != data) 896 WREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET, data); 897 } 898 } 899 900 static int cik_sdma_early_init(void *handle) 901 { 902 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 903 904 adev->sdma.num_instances = SDMA_MAX_INSTANCE; 905 906 cik_sdma_set_ring_funcs(adev); 907 cik_sdma_set_irq_funcs(adev); 908 cik_sdma_set_buffer_funcs(adev); 909 cik_sdma_set_vm_pte_funcs(adev); 910 911 return 0; 912 } 913 914 static int cik_sdma_sw_init(void *handle) 915 { 916 struct amdgpu_ring *ring; 917 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 918 int r, i; 919 920 r = cik_sdma_init_microcode(adev); 921 if (r) { 922 DRM_ERROR("Failed to load sdma firmware!\n"); 923 return r; 924 } 925 926 /* SDMA trap event */ 927 r = amdgpu_irq_add_id(adev, 224, &adev->sdma.trap_irq); 928 if (r) 929 return r; 930 931 /* SDMA Privileged inst */ 932 r = amdgpu_irq_add_id(adev, 241, &adev->sdma.illegal_inst_irq); 933 if (r) 934 return r; 935 936 /* SDMA Privileged inst */ 937 r = amdgpu_irq_add_id(adev, 247, &adev->sdma.illegal_inst_irq); 938 if (r) 939 return r; 940 941 for (i = 0; i < adev->sdma.num_instances; i++) { 942 ring = &adev->sdma.instance[i].ring; 943 ring->ring_obj = NULL; 944 sprintf(ring->name, "sdma%d", i); 945 r = amdgpu_ring_init(adev, ring, 256 * 1024, 946 SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0), 0xf, 947 &adev->sdma.trap_irq, 948 (i == 0) ? 949 AMDGPU_SDMA_IRQ_TRAP0 : AMDGPU_SDMA_IRQ_TRAP1, 950 AMDGPU_RING_TYPE_SDMA); 951 if (r) 952 return r; 953 } 954 955 return r; 956 } 957 958 static int cik_sdma_sw_fini(void *handle) 959 { 960 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 961 int i; 962 963 for (i = 0; i < adev->sdma.num_instances; i++) 964 amdgpu_ring_fini(&adev->sdma.instance[i].ring); 965 966 return 0; 967 } 968 969 static int cik_sdma_hw_init(void *handle) 970 { 971 int r; 972 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 973 974 r = cik_sdma_start(adev); 975 if (r) 976 return r; 977 978 return r; 979 } 980 981 static int cik_sdma_hw_fini(void *handle) 982 { 983 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 984 985 cik_sdma_enable(adev, false); 986 987 return 0; 988 } 989 990 static int cik_sdma_suspend(void *handle) 991 { 992 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 993 994 return cik_sdma_hw_fini(adev); 995 } 996 997 static int cik_sdma_resume(void *handle) 998 { 999 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1000 1001 return cik_sdma_hw_init(adev); 1002 } 1003 1004 static bool cik_sdma_is_idle(void *handle) 1005 { 1006 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1007 u32 tmp = RREG32(mmSRBM_STATUS2); 1008 1009 if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK | 1010 SRBM_STATUS2__SDMA1_BUSY_MASK)) 1011 return false; 1012 1013 return true; 1014 } 1015 1016 static int cik_sdma_wait_for_idle(void *handle) 1017 { 1018 unsigned i; 1019 u32 tmp; 1020 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1021 1022 for (i = 0; i < adev->usec_timeout; i++) { 1023 tmp = RREG32(mmSRBM_STATUS2) & (SRBM_STATUS2__SDMA_BUSY_MASK | 1024 SRBM_STATUS2__SDMA1_BUSY_MASK); 1025 1026 if (!tmp) 1027 return 0; 1028 udelay(1); 1029 } 1030 return -ETIMEDOUT; 1031 } 1032 1033 static void cik_sdma_print_status(void *handle) 1034 { 1035 int i, j; 1036 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1037 1038 dev_info(adev->dev, "CIK SDMA registers\n"); 1039 dev_info(adev->dev, " SRBM_STATUS2=0x%08X\n", 1040 RREG32(mmSRBM_STATUS2)); 1041 for (i = 0; i < adev->sdma.num_instances; i++) { 1042 dev_info(adev->dev, " SDMA%d_STATUS_REG=0x%08X\n", 1043 i, RREG32(mmSDMA0_STATUS_REG + sdma_offsets[i])); 1044 dev_info(adev->dev, " SDMA%d_ME_CNTL=0x%08X\n", 1045 i, RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i])); 1046 dev_info(adev->dev, " SDMA%d_CNTL=0x%08X\n", 1047 i, RREG32(mmSDMA0_CNTL + sdma_offsets[i])); 1048 dev_info(adev->dev, " SDMA%d_SEM_INCOMPLETE_TIMER_CNTL=0x%08X\n", 1049 i, RREG32(mmSDMA0_SEM_INCOMPLETE_TIMER_CNTL + sdma_offsets[i])); 1050 dev_info(adev->dev, " SDMA%d_SEM_WAIT_FAIL_TIMER_CNTL=0x%08X\n", 1051 i, RREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i])); 1052 dev_info(adev->dev, " SDMA%d_GFX_IB_CNTL=0x%08X\n", 1053 i, RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i])); 1054 dev_info(adev->dev, " SDMA%d_GFX_RB_CNTL=0x%08X\n", 1055 i, RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i])); 1056 dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR=0x%08X\n", 1057 i, RREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i])); 1058 dev_info(adev->dev, " SDMA%d_GFX_RB_WPTR=0x%08X\n", 1059 i, RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i])); 1060 dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR_ADDR_HI=0x%08X\n", 1061 i, RREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i])); 1062 dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR_ADDR_LO=0x%08X\n", 1063 i, RREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i])); 1064 dev_info(adev->dev, " SDMA%d_GFX_RB_BASE=0x%08X\n", 1065 i, RREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i])); 1066 dev_info(adev->dev, " SDMA%d_GFX_RB_BASE_HI=0x%08X\n", 1067 i, RREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i])); 1068 mutex_lock(&adev->srbm_mutex); 1069 for (j = 0; j < 16; j++) { 1070 cik_srbm_select(adev, 0, 0, 0, j); 1071 dev_info(adev->dev, " VM %d:\n", j); 1072 dev_info(adev->dev, " SDMA0_GFX_VIRTUAL_ADDR=0x%08X\n", 1073 RREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i])); 1074 dev_info(adev->dev, " SDMA0_GFX_APE1_CNTL=0x%08X\n", 1075 RREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i])); 1076 } 1077 cik_srbm_select(adev, 0, 0, 0, 0); 1078 mutex_unlock(&adev->srbm_mutex); 1079 } 1080 } 1081 1082 static int cik_sdma_soft_reset(void *handle) 1083 { 1084 u32 srbm_soft_reset = 0; 1085 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1086 u32 tmp = RREG32(mmSRBM_STATUS2); 1087 1088 if (tmp & SRBM_STATUS2__SDMA_BUSY_MASK) { 1089 /* sdma0 */ 1090 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET); 1091 tmp |= SDMA0_F32_CNTL__HALT_MASK; 1092 WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp); 1093 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK; 1094 } 1095 if (tmp & SRBM_STATUS2__SDMA1_BUSY_MASK) { 1096 /* sdma1 */ 1097 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET); 1098 tmp |= SDMA0_F32_CNTL__HALT_MASK; 1099 WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp); 1100 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK; 1101 } 1102 1103 if (srbm_soft_reset) { 1104 cik_sdma_print_status((void *)adev); 1105 1106 tmp = RREG32(mmSRBM_SOFT_RESET); 1107 tmp |= srbm_soft_reset; 1108 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp); 1109 WREG32(mmSRBM_SOFT_RESET, tmp); 1110 tmp = RREG32(mmSRBM_SOFT_RESET); 1111 1112 udelay(50); 1113 1114 tmp &= ~srbm_soft_reset; 1115 WREG32(mmSRBM_SOFT_RESET, tmp); 1116 tmp = RREG32(mmSRBM_SOFT_RESET); 1117 1118 /* Wait a little for things to settle down */ 1119 udelay(50); 1120 1121 cik_sdma_print_status((void *)adev); 1122 } 1123 1124 return 0; 1125 } 1126 1127 static int cik_sdma_set_trap_irq_state(struct amdgpu_device *adev, 1128 struct amdgpu_irq_src *src, 1129 unsigned type, 1130 enum amdgpu_interrupt_state state) 1131 { 1132 u32 sdma_cntl; 1133 1134 switch (type) { 1135 case AMDGPU_SDMA_IRQ_TRAP0: 1136 switch (state) { 1137 case AMDGPU_IRQ_STATE_DISABLE: 1138 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET); 1139 sdma_cntl &= ~SDMA0_CNTL__TRAP_ENABLE_MASK; 1140 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl); 1141 break; 1142 case AMDGPU_IRQ_STATE_ENABLE: 1143 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET); 1144 sdma_cntl |= SDMA0_CNTL__TRAP_ENABLE_MASK; 1145 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl); 1146 break; 1147 default: 1148 break; 1149 } 1150 break; 1151 case AMDGPU_SDMA_IRQ_TRAP1: 1152 switch (state) { 1153 case AMDGPU_IRQ_STATE_DISABLE: 1154 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET); 1155 sdma_cntl &= ~SDMA0_CNTL__TRAP_ENABLE_MASK; 1156 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl); 1157 break; 1158 case AMDGPU_IRQ_STATE_ENABLE: 1159 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET); 1160 sdma_cntl |= SDMA0_CNTL__TRAP_ENABLE_MASK; 1161 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl); 1162 break; 1163 default: 1164 break; 1165 } 1166 break; 1167 default: 1168 break; 1169 } 1170 return 0; 1171 } 1172 1173 static int cik_sdma_process_trap_irq(struct amdgpu_device *adev, 1174 struct amdgpu_irq_src *source, 1175 struct amdgpu_iv_entry *entry) 1176 { 1177 u8 instance_id, queue_id; 1178 1179 instance_id = (entry->ring_id & 0x3) >> 0; 1180 queue_id = (entry->ring_id & 0xc) >> 2; 1181 DRM_DEBUG("IH: SDMA trap\n"); 1182 switch (instance_id) { 1183 case 0: 1184 switch (queue_id) { 1185 case 0: 1186 amdgpu_fence_process(&adev->sdma.instance[0].ring); 1187 break; 1188 case 1: 1189 /* XXX compute */ 1190 break; 1191 case 2: 1192 /* XXX compute */ 1193 break; 1194 } 1195 break; 1196 case 1: 1197 switch (queue_id) { 1198 case 0: 1199 amdgpu_fence_process(&adev->sdma.instance[1].ring); 1200 break; 1201 case 1: 1202 /* XXX compute */ 1203 break; 1204 case 2: 1205 /* XXX compute */ 1206 break; 1207 } 1208 break; 1209 } 1210 1211 return 0; 1212 } 1213 1214 static int cik_sdma_process_illegal_inst_irq(struct amdgpu_device *adev, 1215 struct amdgpu_irq_src *source, 1216 struct amdgpu_iv_entry *entry) 1217 { 1218 DRM_ERROR("Illegal instruction in SDMA command stream\n"); 1219 schedule_work(&adev->reset_work); 1220 return 0; 1221 } 1222 1223 static int cik_sdma_set_clockgating_state(void *handle, 1224 enum amd_clockgating_state state) 1225 { 1226 bool gate = false; 1227 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1228 1229 if (state == AMD_CG_STATE_GATE) 1230 gate = true; 1231 1232 cik_enable_sdma_mgcg(adev, gate); 1233 cik_enable_sdma_mgls(adev, gate); 1234 1235 return 0; 1236 } 1237 1238 static int cik_sdma_set_powergating_state(void *handle, 1239 enum amd_powergating_state state) 1240 { 1241 return 0; 1242 } 1243 1244 const struct amd_ip_funcs cik_sdma_ip_funcs = { 1245 .early_init = cik_sdma_early_init, 1246 .late_init = NULL, 1247 .sw_init = cik_sdma_sw_init, 1248 .sw_fini = cik_sdma_sw_fini, 1249 .hw_init = cik_sdma_hw_init, 1250 .hw_fini = cik_sdma_hw_fini, 1251 .suspend = cik_sdma_suspend, 1252 .resume = cik_sdma_resume, 1253 .is_idle = cik_sdma_is_idle, 1254 .wait_for_idle = cik_sdma_wait_for_idle, 1255 .soft_reset = cik_sdma_soft_reset, 1256 .print_status = cik_sdma_print_status, 1257 .set_clockgating_state = cik_sdma_set_clockgating_state, 1258 .set_powergating_state = cik_sdma_set_powergating_state, 1259 }; 1260 1261 static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = { 1262 .get_rptr = cik_sdma_ring_get_rptr, 1263 .get_wptr = cik_sdma_ring_get_wptr, 1264 .set_wptr = cik_sdma_ring_set_wptr, 1265 .parse_cs = NULL, 1266 .emit_ib = cik_sdma_ring_emit_ib, 1267 .emit_fence = cik_sdma_ring_emit_fence, 1268 .emit_vm_flush = cik_sdma_ring_emit_vm_flush, 1269 .emit_hdp_flush = cik_sdma_ring_emit_hdp_flush, 1270 .test_ring = cik_sdma_ring_test_ring, 1271 .test_ib = cik_sdma_ring_test_ib, 1272 .insert_nop = cik_sdma_ring_insert_nop, 1273 .pad_ib = cik_sdma_ring_pad_ib, 1274 }; 1275 1276 static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev) 1277 { 1278 int i; 1279 1280 for (i = 0; i < adev->sdma.num_instances; i++) 1281 adev->sdma.instance[i].ring.funcs = &cik_sdma_ring_funcs; 1282 } 1283 1284 static const struct amdgpu_irq_src_funcs cik_sdma_trap_irq_funcs = { 1285 .set = cik_sdma_set_trap_irq_state, 1286 .process = cik_sdma_process_trap_irq, 1287 }; 1288 1289 static const struct amdgpu_irq_src_funcs cik_sdma_illegal_inst_irq_funcs = { 1290 .process = cik_sdma_process_illegal_inst_irq, 1291 }; 1292 1293 static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev) 1294 { 1295 adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST; 1296 adev->sdma.trap_irq.funcs = &cik_sdma_trap_irq_funcs; 1297 adev->sdma.illegal_inst_irq.funcs = &cik_sdma_illegal_inst_irq_funcs; 1298 } 1299 1300 /** 1301 * cik_sdma_emit_copy_buffer - copy buffer using the sDMA engine 1302 * 1303 * @ring: amdgpu_ring structure holding ring information 1304 * @src_offset: src GPU address 1305 * @dst_offset: dst GPU address 1306 * @byte_count: number of bytes to xfer 1307 * 1308 * Copy GPU buffers using the DMA engine (CIK). 1309 * Used by the amdgpu ttm implementation to move pages if 1310 * registered as the asic copy callback. 1311 */ 1312 static void cik_sdma_emit_copy_buffer(struct amdgpu_ib *ib, 1313 uint64_t src_offset, 1314 uint64_t dst_offset, 1315 uint32_t byte_count) 1316 { 1317 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_COPY, SDMA_COPY_SUB_OPCODE_LINEAR, 0); 1318 ib->ptr[ib->length_dw++] = byte_count; 1319 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ 1320 ib->ptr[ib->length_dw++] = lower_32_bits(src_offset); 1321 ib->ptr[ib->length_dw++] = upper_32_bits(src_offset); 1322 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset); 1323 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset); 1324 } 1325 1326 /** 1327 * cik_sdma_emit_fill_buffer - fill buffer using the sDMA engine 1328 * 1329 * @ring: amdgpu_ring structure holding ring information 1330 * @src_data: value to write to buffer 1331 * @dst_offset: dst GPU address 1332 * @byte_count: number of bytes to xfer 1333 * 1334 * Fill GPU buffers using the DMA engine (CIK). 1335 */ 1336 static void cik_sdma_emit_fill_buffer(struct amdgpu_ib *ib, 1337 uint32_t src_data, 1338 uint64_t dst_offset, 1339 uint32_t byte_count) 1340 { 1341 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_CONSTANT_FILL, 0, 0); 1342 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset); 1343 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset); 1344 ib->ptr[ib->length_dw++] = src_data; 1345 ib->ptr[ib->length_dw++] = byte_count; 1346 } 1347 1348 static const struct amdgpu_buffer_funcs cik_sdma_buffer_funcs = { 1349 .copy_max_bytes = 0x1fffff, 1350 .copy_num_dw = 7, 1351 .emit_copy_buffer = cik_sdma_emit_copy_buffer, 1352 1353 .fill_max_bytes = 0x1fffff, 1354 .fill_num_dw = 5, 1355 .emit_fill_buffer = cik_sdma_emit_fill_buffer, 1356 }; 1357 1358 static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev) 1359 { 1360 if (adev->mman.buffer_funcs == NULL) { 1361 adev->mman.buffer_funcs = &cik_sdma_buffer_funcs; 1362 adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring; 1363 } 1364 } 1365 1366 static const struct amdgpu_vm_pte_funcs cik_sdma_vm_pte_funcs = { 1367 .copy_pte = cik_sdma_vm_copy_pte, 1368 .write_pte = cik_sdma_vm_write_pte, 1369 .set_pte_pde = cik_sdma_vm_set_pte_pde, 1370 }; 1371 1372 static void cik_sdma_set_vm_pte_funcs(struct amdgpu_device *adev) 1373 { 1374 if (adev->vm_manager.vm_pte_funcs == NULL) { 1375 adev->vm_manager.vm_pte_funcs = &cik_sdma_vm_pte_funcs; 1376 adev->vm_manager.vm_pte_funcs_ring = &adev->sdma.instance[0].ring; 1377 adev->vm_manager.vm_pte_funcs_ring->is_pte_ring = true; 1378 } 1379 } 1380