1 /* 2 * Copyright 2014 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Alex Deucher 23 */ 24 #include <linux/firmware.h> 25 #include <drm/drmP.h> 26 #include "amdgpu.h" 27 #include "amdgpu_ucode.h" 28 #include "amdgpu_trace.h" 29 #include "vi.h" 30 #include "vid.h" 31 32 #include "oss/oss_2_4_d.h" 33 #include "oss/oss_2_4_sh_mask.h" 34 35 #include "gmc/gmc_7_1_d.h" 36 #include "gmc/gmc_7_1_sh_mask.h" 37 38 #include "gca/gfx_8_0_d.h" 39 #include "gca/gfx_8_0_enum.h" 40 #include "gca/gfx_8_0_sh_mask.h" 41 42 #include "bif/bif_5_0_d.h" 43 #include "bif/bif_5_0_sh_mask.h" 44 45 #include "iceland_sdma_pkt_open.h" 46 47 static void sdma_v2_4_set_ring_funcs(struct amdgpu_device *adev); 48 static void sdma_v2_4_set_buffer_funcs(struct amdgpu_device *adev); 49 static void sdma_v2_4_set_vm_pte_funcs(struct amdgpu_device *adev); 50 static void sdma_v2_4_set_irq_funcs(struct amdgpu_device *adev); 51 52 MODULE_FIRMWARE("amdgpu/topaz_sdma.bin"); 53 MODULE_FIRMWARE("amdgpu/topaz_sdma1.bin"); 54 55 static const u32 sdma_offsets[SDMA_MAX_INSTANCE] = 56 { 57 SDMA0_REGISTER_OFFSET, 58 SDMA1_REGISTER_OFFSET 59 }; 60 61 static const u32 golden_settings_iceland_a11[] = 62 { 63 mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007, 64 mmSDMA0_CLK_CTRL, 0xff000fff, 0x00000000, 65 mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007, 66 mmSDMA1_CLK_CTRL, 0xff000fff, 0x00000000, 67 }; 68 69 static const u32 iceland_mgcg_cgcg_init[] = 70 { 71 mmSDMA0_CLK_CTRL, 0xff000ff0, 0x00000100, 72 mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100 73 }; 74 75 /* 76 * sDMA - System DMA 77 * Starting with CIK, the GPU has new asynchronous 78 * DMA engines. These engines are used for compute 79 * and gfx. There are two DMA engines (SDMA0, SDMA1) 80 * and each one supports 1 ring buffer used for gfx 81 * and 2 queues used for compute. 82 * 83 * The programming model is very similar to the CP 84 * (ring buffer, IBs, etc.), but sDMA has it's own 85 * packet format that is different from the PM4 format 86 * used by the CP. sDMA supports copying data, writing 87 * embedded data, solid fills, and a number of other 88 * things. It also has support for tiling/detiling of 89 * buffers. 90 */ 91 92 static void sdma_v2_4_init_golden_registers(struct amdgpu_device *adev) 93 { 94 switch (adev->asic_type) { 95 case CHIP_TOPAZ: 96 amdgpu_program_register_sequence(adev, 97 iceland_mgcg_cgcg_init, 98 (const u32)ARRAY_SIZE(iceland_mgcg_cgcg_init)); 99 amdgpu_program_register_sequence(adev, 100 golden_settings_iceland_a11, 101 (const u32)ARRAY_SIZE(golden_settings_iceland_a11)); 102 break; 103 default: 104 break; 105 } 106 } 107 108 static void sdma_v2_4_free_microcode(struct amdgpu_device *adev) 109 { 110 int i; 111 for (i = 0; i < adev->sdma.num_instances; i++) { 112 release_firmware(adev->sdma.instance[i].fw); 113 adev->sdma.instance[i].fw = NULL; 114 } 115 } 116 117 /** 118 * sdma_v2_4_init_microcode - load ucode images from disk 119 * 120 * @adev: amdgpu_device pointer 121 * 122 * Use the firmware interface to load the ucode images into 123 * the driver (not loaded into hw). 124 * Returns 0 on success, error on failure. 125 */ 126 static int sdma_v2_4_init_microcode(struct amdgpu_device *adev) 127 { 128 const char *chip_name; 129 char fw_name[30]; 130 int err = 0, i; 131 struct amdgpu_firmware_info *info = NULL; 132 const struct common_firmware_header *header = NULL; 133 const struct sdma_firmware_header_v1_0 *hdr; 134 135 DRM_DEBUG("\n"); 136 137 switch (adev->asic_type) { 138 case CHIP_TOPAZ: 139 chip_name = "topaz"; 140 break; 141 default: BUG(); 142 } 143 144 for (i = 0; i < adev->sdma.num_instances; i++) { 145 if (i == 0) 146 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name); 147 else 148 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma1.bin", chip_name); 149 err = request_firmware(&adev->sdma.instance[i].fw, fw_name, adev->dev); 150 if (err) 151 goto out; 152 err = amdgpu_ucode_validate(adev->sdma.instance[i].fw); 153 if (err) 154 goto out; 155 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data; 156 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version); 157 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version); 158 if (adev->sdma.instance[i].feature_version >= 20) 159 adev->sdma.instance[i].burst_nop = true; 160 161 if (adev->firmware.smu_load) { 162 info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i]; 163 info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i; 164 info->fw = adev->sdma.instance[i].fw; 165 header = (const struct common_firmware_header *)info->fw->data; 166 adev->firmware.fw_size += 167 ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE); 168 } 169 } 170 171 out: 172 if (err) { 173 printk(KERN_ERR 174 "sdma_v2_4: Failed to load firmware \"%s\"\n", 175 fw_name); 176 for (i = 0; i < adev->sdma.num_instances; i++) { 177 release_firmware(adev->sdma.instance[i].fw); 178 adev->sdma.instance[i].fw = NULL; 179 } 180 } 181 return err; 182 } 183 184 /** 185 * sdma_v2_4_ring_get_rptr - get the current read pointer 186 * 187 * @ring: amdgpu ring pointer 188 * 189 * Get the current rptr from the hardware (VI+). 190 */ 191 static uint32_t sdma_v2_4_ring_get_rptr(struct amdgpu_ring *ring) 192 { 193 /* XXX check if swapping is necessary on BE */ 194 return ring->adev->wb.wb[ring->rptr_offs] >> 2; 195 } 196 197 /** 198 * sdma_v2_4_ring_get_wptr - get the current write pointer 199 * 200 * @ring: amdgpu ring pointer 201 * 202 * Get the current wptr from the hardware (VI+). 203 */ 204 static uint32_t sdma_v2_4_ring_get_wptr(struct amdgpu_ring *ring) 205 { 206 struct amdgpu_device *adev = ring->adev; 207 int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1; 208 u32 wptr = RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me]) >> 2; 209 210 return wptr; 211 } 212 213 /** 214 * sdma_v2_4_ring_set_wptr - commit the write pointer 215 * 216 * @ring: amdgpu ring pointer 217 * 218 * Write the wptr back to the hardware (VI+). 219 */ 220 static void sdma_v2_4_ring_set_wptr(struct amdgpu_ring *ring) 221 { 222 struct amdgpu_device *adev = ring->adev; 223 int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1; 224 225 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me], ring->wptr << 2); 226 } 227 228 static void sdma_v2_4_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count) 229 { 230 struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring); 231 int i; 232 233 for (i = 0; i < count; i++) 234 if (sdma && sdma->burst_nop && (i == 0)) 235 amdgpu_ring_write(ring, ring->nop | 236 SDMA_PKT_NOP_HEADER_COUNT(count - 1)); 237 else 238 amdgpu_ring_write(ring, ring->nop); 239 } 240 241 /** 242 * sdma_v2_4_ring_emit_ib - Schedule an IB on the DMA engine 243 * 244 * @ring: amdgpu ring pointer 245 * @ib: IB object to schedule 246 * 247 * Schedule an IB in the DMA ring (VI). 248 */ 249 static void sdma_v2_4_ring_emit_ib(struct amdgpu_ring *ring, 250 struct amdgpu_ib *ib, 251 unsigned vm_id, bool ctx_switch) 252 { 253 u32 vmid = vm_id & 0xf; 254 255 /* IB packet must end on a 8 DW boundary */ 256 sdma_v2_4_ring_insert_nop(ring, (10 - (ring->wptr & 7)) % 8); 257 258 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) | 259 SDMA_PKT_INDIRECT_HEADER_VMID(vmid)); 260 /* base must be 32 byte aligned */ 261 amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0); 262 amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr)); 263 amdgpu_ring_write(ring, ib->length_dw); 264 amdgpu_ring_write(ring, 0); 265 amdgpu_ring_write(ring, 0); 266 267 } 268 269 /** 270 * sdma_v2_4_hdp_flush_ring_emit - emit an hdp flush on the DMA ring 271 * 272 * @ring: amdgpu ring pointer 273 * 274 * Emit an hdp flush packet on the requested DMA ring. 275 */ 276 static void sdma_v2_4_ring_emit_hdp_flush(struct amdgpu_ring *ring) 277 { 278 u32 ref_and_mask = 0; 279 280 if (ring == &ring->adev->sdma.instance[0].ring) 281 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA0, 1); 282 else 283 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA1, 1); 284 285 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | 286 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) | 287 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */ 288 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_DONE << 2); 289 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_REQ << 2); 290 amdgpu_ring_write(ring, ref_and_mask); /* reference */ 291 amdgpu_ring_write(ring, ref_and_mask); /* mask */ 292 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | 293 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */ 294 } 295 296 static void sdma_v2_4_ring_emit_hdp_invalidate(struct amdgpu_ring *ring) 297 { 298 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) | 299 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf)); 300 amdgpu_ring_write(ring, mmHDP_DEBUG0); 301 amdgpu_ring_write(ring, 1); 302 } 303 /** 304 * sdma_v2_4_ring_emit_fence - emit a fence on the DMA ring 305 * 306 * @ring: amdgpu ring pointer 307 * @fence: amdgpu fence object 308 * 309 * Add a DMA fence packet to the ring to write 310 * the fence seq number and DMA trap packet to generate 311 * an interrupt if needed (VI). 312 */ 313 static void sdma_v2_4_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq, 314 unsigned flags) 315 { 316 bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT; 317 /* write the fence */ 318 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE)); 319 amdgpu_ring_write(ring, lower_32_bits(addr)); 320 amdgpu_ring_write(ring, upper_32_bits(addr)); 321 amdgpu_ring_write(ring, lower_32_bits(seq)); 322 323 /* optionally write high bits as well */ 324 if (write64bit) { 325 addr += 4; 326 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE)); 327 amdgpu_ring_write(ring, lower_32_bits(addr)); 328 amdgpu_ring_write(ring, upper_32_bits(addr)); 329 amdgpu_ring_write(ring, upper_32_bits(seq)); 330 } 331 332 /* generate an interrupt */ 333 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP)); 334 amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0)); 335 } 336 337 /** 338 * sdma_v2_4_gfx_stop - stop the gfx async dma engines 339 * 340 * @adev: amdgpu_device pointer 341 * 342 * Stop the gfx async dma ring buffers (VI). 343 */ 344 static void sdma_v2_4_gfx_stop(struct amdgpu_device *adev) 345 { 346 struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].ring; 347 struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].ring; 348 u32 rb_cntl, ib_cntl; 349 int i; 350 351 if ((adev->mman.buffer_funcs_ring == sdma0) || 352 (adev->mman.buffer_funcs_ring == sdma1)) 353 amdgpu_ttm_set_active_vram_size(adev, adev->mc.visible_vram_size); 354 355 for (i = 0; i < adev->sdma.num_instances; i++) { 356 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]); 357 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0); 358 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); 359 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]); 360 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0); 361 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl); 362 } 363 sdma0->ready = false; 364 sdma1->ready = false; 365 } 366 367 /** 368 * sdma_v2_4_rlc_stop - stop the compute async dma engines 369 * 370 * @adev: amdgpu_device pointer 371 * 372 * Stop the compute async dma queues (VI). 373 */ 374 static void sdma_v2_4_rlc_stop(struct amdgpu_device *adev) 375 { 376 /* XXX todo */ 377 } 378 379 /** 380 * sdma_v2_4_enable - stop the async dma engines 381 * 382 * @adev: amdgpu_device pointer 383 * @enable: enable/disable the DMA MEs. 384 * 385 * Halt or unhalt the async dma engines (VI). 386 */ 387 static void sdma_v2_4_enable(struct amdgpu_device *adev, bool enable) 388 { 389 u32 f32_cntl; 390 int i; 391 392 if (!enable) { 393 sdma_v2_4_gfx_stop(adev); 394 sdma_v2_4_rlc_stop(adev); 395 } 396 397 for (i = 0; i < adev->sdma.num_instances; i++) { 398 f32_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]); 399 if (enable) 400 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 0); 401 else 402 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 1); 403 WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], f32_cntl); 404 } 405 } 406 407 /** 408 * sdma_v2_4_gfx_resume - setup and start the async dma engines 409 * 410 * @adev: amdgpu_device pointer 411 * 412 * Set up the gfx DMA ring buffers and enable them (VI). 413 * Returns 0 for success, error for failure. 414 */ 415 static int sdma_v2_4_gfx_resume(struct amdgpu_device *adev) 416 { 417 struct amdgpu_ring *ring; 418 u32 rb_cntl, ib_cntl; 419 u32 rb_bufsz; 420 u32 wb_offset; 421 int i, j, r; 422 423 for (i = 0; i < adev->sdma.num_instances; i++) { 424 ring = &adev->sdma.instance[i].ring; 425 wb_offset = (ring->rptr_offs * 4); 426 427 mutex_lock(&adev->srbm_mutex); 428 for (j = 0; j < 16; j++) { 429 vi_srbm_select(adev, 0, 0, 0, j); 430 /* SDMA GFX */ 431 WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0); 432 WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0); 433 } 434 vi_srbm_select(adev, 0, 0, 0, 0); 435 mutex_unlock(&adev->srbm_mutex); 436 437 WREG32(mmSDMA0_TILING_CONFIG + sdma_offsets[i], 438 adev->gfx.config.gb_addr_config & 0x70); 439 440 WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0); 441 442 /* Set ring buffer size in dwords */ 443 rb_bufsz = order_base_2(ring->ring_size / 4); 444 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]); 445 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz); 446 #ifdef __BIG_ENDIAN 447 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1); 448 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, 449 RPTR_WRITEBACK_SWAP_ENABLE, 1); 450 #endif 451 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); 452 453 /* Initialize the ring buffer's read and write pointers */ 454 WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0); 455 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], 0); 456 WREG32(mmSDMA0_GFX_IB_RPTR + sdma_offsets[i], 0); 457 WREG32(mmSDMA0_GFX_IB_OFFSET + sdma_offsets[i], 0); 458 459 /* set the wb address whether it's enabled or not */ 460 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i], 461 upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF); 462 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i], 463 lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC); 464 465 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1); 466 467 WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8); 468 WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40); 469 470 ring->wptr = 0; 471 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], ring->wptr << 2); 472 473 /* enable DMA RB */ 474 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1); 475 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); 476 477 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]); 478 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1); 479 #ifdef __BIG_ENDIAN 480 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1); 481 #endif 482 /* enable DMA IBs */ 483 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl); 484 485 ring->ready = true; 486 } 487 488 sdma_v2_4_enable(adev, true); 489 for (i = 0; i < adev->sdma.num_instances; i++) { 490 ring = &adev->sdma.instance[i].ring; 491 r = amdgpu_ring_test_ring(ring); 492 if (r) { 493 ring->ready = false; 494 return r; 495 } 496 497 if (adev->mman.buffer_funcs_ring == ring) 498 amdgpu_ttm_set_active_vram_size(adev, adev->mc.real_vram_size); 499 } 500 501 return 0; 502 } 503 504 /** 505 * sdma_v2_4_rlc_resume - setup and start the async dma engines 506 * 507 * @adev: amdgpu_device pointer 508 * 509 * Set up the compute DMA queues and enable them (VI). 510 * Returns 0 for success, error for failure. 511 */ 512 static int sdma_v2_4_rlc_resume(struct amdgpu_device *adev) 513 { 514 /* XXX todo */ 515 return 0; 516 } 517 518 /** 519 * sdma_v2_4_load_microcode - load the sDMA ME ucode 520 * 521 * @adev: amdgpu_device pointer 522 * 523 * Loads the sDMA0/1 ucode. 524 * Returns 0 for success, -EINVAL if the ucode is not available. 525 */ 526 static int sdma_v2_4_load_microcode(struct amdgpu_device *adev) 527 { 528 const struct sdma_firmware_header_v1_0 *hdr; 529 const __le32 *fw_data; 530 u32 fw_size; 531 int i, j; 532 533 /* halt the MEs */ 534 sdma_v2_4_enable(adev, false); 535 536 for (i = 0; i < adev->sdma.num_instances; i++) { 537 if (!adev->sdma.instance[i].fw) 538 return -EINVAL; 539 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data; 540 amdgpu_ucode_print_sdma_hdr(&hdr->header); 541 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; 542 fw_data = (const __le32 *) 543 (adev->sdma.instance[i].fw->data + 544 le32_to_cpu(hdr->header.ucode_array_offset_bytes)); 545 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], 0); 546 for (j = 0; j < fw_size; j++) 547 WREG32(mmSDMA0_UCODE_DATA + sdma_offsets[i], le32_to_cpup(fw_data++)); 548 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], adev->sdma.instance[i].fw_version); 549 } 550 551 return 0; 552 } 553 554 /** 555 * sdma_v2_4_start - setup and start the async dma engines 556 * 557 * @adev: amdgpu_device pointer 558 * 559 * Set up the DMA engines and enable them (VI). 560 * Returns 0 for success, error for failure. 561 */ 562 static int sdma_v2_4_start(struct amdgpu_device *adev) 563 { 564 int r; 565 566 if (!adev->pp_enabled) { 567 if (!adev->firmware.smu_load) { 568 r = sdma_v2_4_load_microcode(adev); 569 if (r) 570 return r; 571 } else { 572 r = adev->smu.smumgr_funcs->check_fw_load_finish(adev, 573 AMDGPU_UCODE_ID_SDMA0); 574 if (r) 575 return -EINVAL; 576 r = adev->smu.smumgr_funcs->check_fw_load_finish(adev, 577 AMDGPU_UCODE_ID_SDMA1); 578 if (r) 579 return -EINVAL; 580 } 581 } 582 583 /* halt the engine before programing */ 584 sdma_v2_4_enable(adev, false); 585 586 /* start the gfx rings and rlc compute queues */ 587 r = sdma_v2_4_gfx_resume(adev); 588 if (r) 589 return r; 590 r = sdma_v2_4_rlc_resume(adev); 591 if (r) 592 return r; 593 594 return 0; 595 } 596 597 /** 598 * sdma_v2_4_ring_test_ring - simple async dma engine test 599 * 600 * @ring: amdgpu_ring structure holding ring information 601 * 602 * Test the DMA engine by writing using it to write an 603 * value to memory. (VI). 604 * Returns 0 for success, error for failure. 605 */ 606 static int sdma_v2_4_ring_test_ring(struct amdgpu_ring *ring) 607 { 608 struct amdgpu_device *adev = ring->adev; 609 unsigned i; 610 unsigned index; 611 int r; 612 u32 tmp; 613 u64 gpu_addr; 614 615 r = amdgpu_wb_get(adev, &index); 616 if (r) { 617 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r); 618 return r; 619 } 620 621 gpu_addr = adev->wb.gpu_addr + (index * 4); 622 tmp = 0xCAFEDEAD; 623 adev->wb.wb[index] = cpu_to_le32(tmp); 624 625 r = amdgpu_ring_alloc(ring, 5); 626 if (r) { 627 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r); 628 amdgpu_wb_free(adev, index); 629 return r; 630 } 631 632 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) | 633 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR)); 634 amdgpu_ring_write(ring, lower_32_bits(gpu_addr)); 635 amdgpu_ring_write(ring, upper_32_bits(gpu_addr)); 636 amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1)); 637 amdgpu_ring_write(ring, 0xDEADBEEF); 638 amdgpu_ring_commit(ring); 639 640 for (i = 0; i < adev->usec_timeout; i++) { 641 tmp = le32_to_cpu(adev->wb.wb[index]); 642 if (tmp == 0xDEADBEEF) 643 break; 644 DRM_UDELAY(1); 645 } 646 647 if (i < adev->usec_timeout) { 648 DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i); 649 } else { 650 DRM_ERROR("amdgpu: ring %d test failed (0x%08X)\n", 651 ring->idx, tmp); 652 r = -EINVAL; 653 } 654 amdgpu_wb_free(adev, index); 655 656 return r; 657 } 658 659 /** 660 * sdma_v2_4_ring_test_ib - test an IB on the DMA engine 661 * 662 * @ring: amdgpu_ring structure holding ring information 663 * 664 * Test a simple IB in the DMA ring (VI). 665 * Returns 0 on success, error on failure. 666 */ 667 static int sdma_v2_4_ring_test_ib(struct amdgpu_ring *ring, long timeout) 668 { 669 struct amdgpu_device *adev = ring->adev; 670 struct amdgpu_ib ib; 671 struct fence *f = NULL; 672 unsigned index; 673 u32 tmp = 0; 674 u64 gpu_addr; 675 long r; 676 677 r = amdgpu_wb_get(adev, &index); 678 if (r) { 679 dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r); 680 return r; 681 } 682 683 gpu_addr = adev->wb.gpu_addr + (index * 4); 684 tmp = 0xCAFEDEAD; 685 adev->wb.wb[index] = cpu_to_le32(tmp); 686 memset(&ib, 0, sizeof(ib)); 687 r = amdgpu_ib_get(adev, NULL, 256, &ib); 688 if (r) { 689 DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r); 690 goto err0; 691 } 692 693 ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) | 694 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR); 695 ib.ptr[1] = lower_32_bits(gpu_addr); 696 ib.ptr[2] = upper_32_bits(gpu_addr); 697 ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1); 698 ib.ptr[4] = 0xDEADBEEF; 699 ib.ptr[5] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP); 700 ib.ptr[6] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP); 701 ib.ptr[7] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP); 702 ib.length_dw = 8; 703 704 r = amdgpu_ib_schedule(ring, 1, &ib, NULL, NULL, &f); 705 if (r) 706 goto err1; 707 708 r = fence_wait_timeout(f, false, timeout); 709 if (r == 0) { 710 DRM_ERROR("amdgpu: IB test timed out\n"); 711 r = -ETIMEDOUT; 712 goto err1; 713 } else if (r < 0) { 714 DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r); 715 goto err1; 716 } 717 tmp = le32_to_cpu(adev->wb.wb[index]); 718 if (tmp == 0xDEADBEEF) { 719 DRM_INFO("ib test on ring %d succeeded\n", ring->idx); 720 r = 0; 721 } else { 722 DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp); 723 r = -EINVAL; 724 } 725 726 err1: 727 amdgpu_ib_free(adev, &ib, NULL); 728 fence_put(f); 729 err0: 730 amdgpu_wb_free(adev, index); 731 return r; 732 } 733 734 /** 735 * sdma_v2_4_vm_copy_pte - update PTEs by copying them from the GART 736 * 737 * @ib: indirect buffer to fill with commands 738 * @pe: addr of the page entry 739 * @src: src addr to copy from 740 * @count: number of page entries to update 741 * 742 * Update PTEs by copying them from the GART using sDMA (CIK). 743 */ 744 static void sdma_v2_4_vm_copy_pte(struct amdgpu_ib *ib, 745 uint64_t pe, uint64_t src, 746 unsigned count) 747 { 748 unsigned bytes = count * 8; 749 750 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) | 751 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR); 752 ib->ptr[ib->length_dw++] = bytes; 753 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ 754 ib->ptr[ib->length_dw++] = lower_32_bits(src); 755 ib->ptr[ib->length_dw++] = upper_32_bits(src); 756 ib->ptr[ib->length_dw++] = lower_32_bits(pe); 757 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 758 } 759 760 /** 761 * sdma_v2_4_vm_write_pte - update PTEs by writing them manually 762 * 763 * @ib: indirect buffer to fill with commands 764 * @pe: addr of the page entry 765 * @value: dst addr to write into pe 766 * @count: number of page entries to update 767 * @incr: increase next addr by incr bytes 768 * 769 * Update PTEs by writing them manually using sDMA (CIK). 770 */ 771 static void sdma_v2_4_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe, 772 uint64_t value, unsigned count, 773 uint32_t incr) 774 { 775 unsigned ndw = count * 2; 776 777 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) | 778 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR); 779 ib->ptr[ib->length_dw++] = pe; 780 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 781 ib->ptr[ib->length_dw++] = ndw; 782 for (; ndw > 0; ndw -= 2, --count, pe += 8) { 783 ib->ptr[ib->length_dw++] = lower_32_bits(value); 784 ib->ptr[ib->length_dw++] = upper_32_bits(value); 785 value += incr; 786 } 787 } 788 789 /** 790 * sdma_v2_4_vm_set_pte_pde - update the page tables using sDMA 791 * 792 * @ib: indirect buffer to fill with commands 793 * @pe: addr of the page entry 794 * @addr: dst addr to write into pe 795 * @count: number of page entries to update 796 * @incr: increase next addr by incr bytes 797 * @flags: access flags 798 * 799 * Update the page tables using sDMA (CIK). 800 */ 801 static void sdma_v2_4_vm_set_pte_pde(struct amdgpu_ib *ib, uint64_t pe, 802 uint64_t addr, unsigned count, 803 uint32_t incr, uint32_t flags) 804 { 805 /* for physically contiguous pages (vram) */ 806 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_GEN_PTEPDE); 807 ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */ 808 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 809 ib->ptr[ib->length_dw++] = flags; /* mask */ 810 ib->ptr[ib->length_dw++] = 0; 811 ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */ 812 ib->ptr[ib->length_dw++] = upper_32_bits(addr); 813 ib->ptr[ib->length_dw++] = incr; /* increment size */ 814 ib->ptr[ib->length_dw++] = 0; 815 ib->ptr[ib->length_dw++] = count; /* number of entries */ 816 } 817 818 /** 819 * sdma_v2_4_ring_pad_ib - pad the IB to the required number of dw 820 * 821 * @ib: indirect buffer to fill with padding 822 * 823 */ 824 static void sdma_v2_4_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib) 825 { 826 struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring); 827 u32 pad_count; 828 int i; 829 830 pad_count = (8 - (ib->length_dw & 0x7)) % 8; 831 for (i = 0; i < pad_count; i++) 832 if (sdma && sdma->burst_nop && (i == 0)) 833 ib->ptr[ib->length_dw++] = 834 SDMA_PKT_HEADER_OP(SDMA_OP_NOP) | 835 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1); 836 else 837 ib->ptr[ib->length_dw++] = 838 SDMA_PKT_HEADER_OP(SDMA_OP_NOP); 839 } 840 841 /** 842 * sdma_v2_4_ring_emit_pipeline_sync - sync the pipeline 843 * 844 * @ring: amdgpu_ring pointer 845 * 846 * Make sure all previous operations are completed (CIK). 847 */ 848 static void sdma_v2_4_ring_emit_pipeline_sync(struct amdgpu_ring *ring) 849 { 850 uint32_t seq = ring->fence_drv.sync_seq; 851 uint64_t addr = ring->fence_drv.gpu_addr; 852 853 /* wait for idle */ 854 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | 855 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) | 856 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */ 857 SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1)); 858 amdgpu_ring_write(ring, addr & 0xfffffffc); 859 amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff); 860 amdgpu_ring_write(ring, seq); /* reference */ 861 amdgpu_ring_write(ring, 0xfffffff); /* mask */ 862 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | 863 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */ 864 } 865 866 /** 867 * sdma_v2_4_ring_emit_vm_flush - cik vm flush using sDMA 868 * 869 * @ring: amdgpu_ring pointer 870 * @vm: amdgpu_vm pointer 871 * 872 * Update the page table base and flush the VM TLB 873 * using sDMA (VI). 874 */ 875 static void sdma_v2_4_ring_emit_vm_flush(struct amdgpu_ring *ring, 876 unsigned vm_id, uint64_t pd_addr) 877 { 878 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) | 879 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf)); 880 if (vm_id < 8) { 881 amdgpu_ring_write(ring, (mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vm_id)); 882 } else { 883 amdgpu_ring_write(ring, (mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vm_id - 8)); 884 } 885 amdgpu_ring_write(ring, pd_addr >> 12); 886 887 /* flush TLB */ 888 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) | 889 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf)); 890 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST); 891 amdgpu_ring_write(ring, 1 << vm_id); 892 893 /* wait for flush */ 894 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | 895 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) | 896 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(0)); /* always */ 897 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2); 898 amdgpu_ring_write(ring, 0); 899 amdgpu_ring_write(ring, 0); /* reference */ 900 amdgpu_ring_write(ring, 0); /* mask */ 901 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | 902 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */ 903 } 904 905 static unsigned sdma_v2_4_ring_get_emit_ib_size(struct amdgpu_ring *ring) 906 { 907 return 908 7 + 6; /* sdma_v2_4_ring_emit_ib */ 909 } 910 911 static unsigned sdma_v2_4_ring_get_dma_frame_size(struct amdgpu_ring *ring) 912 { 913 return 914 6 + /* sdma_v2_4_ring_emit_hdp_flush */ 915 3 + /* sdma_v2_4_ring_emit_hdp_invalidate */ 916 6 + /* sdma_v2_4_ring_emit_pipeline_sync */ 917 12 + /* sdma_v2_4_ring_emit_vm_flush */ 918 10 + 10 + 10; /* sdma_v2_4_ring_emit_fence x3 for user fence, vm fence */ 919 } 920 921 static int sdma_v2_4_early_init(void *handle) 922 { 923 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 924 925 adev->sdma.num_instances = SDMA_MAX_INSTANCE; 926 927 sdma_v2_4_set_ring_funcs(adev); 928 sdma_v2_4_set_buffer_funcs(adev); 929 sdma_v2_4_set_vm_pte_funcs(adev); 930 sdma_v2_4_set_irq_funcs(adev); 931 932 return 0; 933 } 934 935 static int sdma_v2_4_sw_init(void *handle) 936 { 937 struct amdgpu_ring *ring; 938 int r, i; 939 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 940 941 /* SDMA trap event */ 942 r = amdgpu_irq_add_id(adev, 224, &adev->sdma.trap_irq); 943 if (r) 944 return r; 945 946 /* SDMA Privileged inst */ 947 r = amdgpu_irq_add_id(adev, 241, &adev->sdma.illegal_inst_irq); 948 if (r) 949 return r; 950 951 /* SDMA Privileged inst */ 952 r = amdgpu_irq_add_id(adev, 247, &adev->sdma.illegal_inst_irq); 953 if (r) 954 return r; 955 956 r = sdma_v2_4_init_microcode(adev); 957 if (r) { 958 DRM_ERROR("Failed to load sdma firmware!\n"); 959 return r; 960 } 961 962 for (i = 0; i < adev->sdma.num_instances; i++) { 963 ring = &adev->sdma.instance[i].ring; 964 ring->ring_obj = NULL; 965 ring->use_doorbell = false; 966 sprintf(ring->name, "sdma%d", i); 967 r = amdgpu_ring_init(adev, ring, 1024, 968 SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP), 0xf, 969 &adev->sdma.trap_irq, 970 (i == 0) ? 971 AMDGPU_SDMA_IRQ_TRAP0 : AMDGPU_SDMA_IRQ_TRAP1, 972 AMDGPU_RING_TYPE_SDMA); 973 if (r) 974 return r; 975 } 976 977 return r; 978 } 979 980 static int sdma_v2_4_sw_fini(void *handle) 981 { 982 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 983 int i; 984 985 for (i = 0; i < adev->sdma.num_instances; i++) 986 amdgpu_ring_fini(&adev->sdma.instance[i].ring); 987 988 sdma_v2_4_free_microcode(adev); 989 return 0; 990 } 991 992 static int sdma_v2_4_hw_init(void *handle) 993 { 994 int r; 995 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 996 997 sdma_v2_4_init_golden_registers(adev); 998 999 r = sdma_v2_4_start(adev); 1000 if (r) 1001 return r; 1002 1003 return r; 1004 } 1005 1006 static int sdma_v2_4_hw_fini(void *handle) 1007 { 1008 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1009 1010 sdma_v2_4_enable(adev, false); 1011 1012 return 0; 1013 } 1014 1015 static int sdma_v2_4_suspend(void *handle) 1016 { 1017 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1018 1019 return sdma_v2_4_hw_fini(adev); 1020 } 1021 1022 static int sdma_v2_4_resume(void *handle) 1023 { 1024 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1025 1026 return sdma_v2_4_hw_init(adev); 1027 } 1028 1029 static bool sdma_v2_4_is_idle(void *handle) 1030 { 1031 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1032 u32 tmp = RREG32(mmSRBM_STATUS2); 1033 1034 if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK | 1035 SRBM_STATUS2__SDMA1_BUSY_MASK)) 1036 return false; 1037 1038 return true; 1039 } 1040 1041 static int sdma_v2_4_wait_for_idle(void *handle) 1042 { 1043 unsigned i; 1044 u32 tmp; 1045 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1046 1047 for (i = 0; i < adev->usec_timeout; i++) { 1048 tmp = RREG32(mmSRBM_STATUS2) & (SRBM_STATUS2__SDMA_BUSY_MASK | 1049 SRBM_STATUS2__SDMA1_BUSY_MASK); 1050 1051 if (!tmp) 1052 return 0; 1053 udelay(1); 1054 } 1055 return -ETIMEDOUT; 1056 } 1057 1058 static int sdma_v2_4_soft_reset(void *handle) 1059 { 1060 u32 srbm_soft_reset = 0; 1061 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1062 u32 tmp = RREG32(mmSRBM_STATUS2); 1063 1064 if (tmp & SRBM_STATUS2__SDMA_BUSY_MASK) { 1065 /* sdma0 */ 1066 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET); 1067 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0); 1068 WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp); 1069 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK; 1070 } 1071 if (tmp & SRBM_STATUS2__SDMA1_BUSY_MASK) { 1072 /* sdma1 */ 1073 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET); 1074 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0); 1075 WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp); 1076 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK; 1077 } 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 sdma_v2_4_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_TRAP0: 1108 switch (state) { 1109 case AMDGPU_IRQ_STATE_DISABLE: 1110 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET); 1111 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0); 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 = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1); 1117 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl); 1118 break; 1119 default: 1120 break; 1121 } 1122 break; 1123 case AMDGPU_SDMA_IRQ_TRAP1: 1124 switch (state) { 1125 case AMDGPU_IRQ_STATE_DISABLE: 1126 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET); 1127 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0); 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 = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1); 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 sdma_v2_4_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 return 0; 1183 } 1184 1185 static int sdma_v2_4_process_illegal_inst_irq(struct amdgpu_device *adev, 1186 struct amdgpu_irq_src *source, 1187 struct amdgpu_iv_entry *entry) 1188 { 1189 DRM_ERROR("Illegal instruction in SDMA command stream\n"); 1190 schedule_work(&adev->reset_work); 1191 return 0; 1192 } 1193 1194 static int sdma_v2_4_set_clockgating_state(void *handle, 1195 enum amd_clockgating_state state) 1196 { 1197 /* XXX handled via the smc on VI */ 1198 return 0; 1199 } 1200 1201 static int sdma_v2_4_set_powergating_state(void *handle, 1202 enum amd_powergating_state state) 1203 { 1204 return 0; 1205 } 1206 1207 const struct amd_ip_funcs sdma_v2_4_ip_funcs = { 1208 .name = "sdma_v2_4", 1209 .early_init = sdma_v2_4_early_init, 1210 .late_init = NULL, 1211 .sw_init = sdma_v2_4_sw_init, 1212 .sw_fini = sdma_v2_4_sw_fini, 1213 .hw_init = sdma_v2_4_hw_init, 1214 .hw_fini = sdma_v2_4_hw_fini, 1215 .suspend = sdma_v2_4_suspend, 1216 .resume = sdma_v2_4_resume, 1217 .is_idle = sdma_v2_4_is_idle, 1218 .wait_for_idle = sdma_v2_4_wait_for_idle, 1219 .soft_reset = sdma_v2_4_soft_reset, 1220 .set_clockgating_state = sdma_v2_4_set_clockgating_state, 1221 .set_powergating_state = sdma_v2_4_set_powergating_state, 1222 }; 1223 1224 static const struct amdgpu_ring_funcs sdma_v2_4_ring_funcs = { 1225 .get_rptr = sdma_v2_4_ring_get_rptr, 1226 .get_wptr = sdma_v2_4_ring_get_wptr, 1227 .set_wptr = sdma_v2_4_ring_set_wptr, 1228 .parse_cs = NULL, 1229 .emit_ib = sdma_v2_4_ring_emit_ib, 1230 .emit_fence = sdma_v2_4_ring_emit_fence, 1231 .emit_pipeline_sync = sdma_v2_4_ring_emit_pipeline_sync, 1232 .emit_vm_flush = sdma_v2_4_ring_emit_vm_flush, 1233 .emit_hdp_flush = sdma_v2_4_ring_emit_hdp_flush, 1234 .emit_hdp_invalidate = sdma_v2_4_ring_emit_hdp_invalidate, 1235 .test_ring = sdma_v2_4_ring_test_ring, 1236 .test_ib = sdma_v2_4_ring_test_ib, 1237 .insert_nop = sdma_v2_4_ring_insert_nop, 1238 .pad_ib = sdma_v2_4_ring_pad_ib, 1239 .get_emit_ib_size = sdma_v2_4_ring_get_emit_ib_size, 1240 .get_dma_frame_size = sdma_v2_4_ring_get_dma_frame_size, 1241 }; 1242 1243 static void sdma_v2_4_set_ring_funcs(struct amdgpu_device *adev) 1244 { 1245 int i; 1246 1247 for (i = 0; i < adev->sdma.num_instances; i++) 1248 adev->sdma.instance[i].ring.funcs = &sdma_v2_4_ring_funcs; 1249 } 1250 1251 static const struct amdgpu_irq_src_funcs sdma_v2_4_trap_irq_funcs = { 1252 .set = sdma_v2_4_set_trap_irq_state, 1253 .process = sdma_v2_4_process_trap_irq, 1254 }; 1255 1256 static const struct amdgpu_irq_src_funcs sdma_v2_4_illegal_inst_irq_funcs = { 1257 .process = sdma_v2_4_process_illegal_inst_irq, 1258 }; 1259 1260 static void sdma_v2_4_set_irq_funcs(struct amdgpu_device *adev) 1261 { 1262 adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST; 1263 adev->sdma.trap_irq.funcs = &sdma_v2_4_trap_irq_funcs; 1264 adev->sdma.illegal_inst_irq.funcs = &sdma_v2_4_illegal_inst_irq_funcs; 1265 } 1266 1267 /** 1268 * sdma_v2_4_emit_copy_buffer - copy buffer using the sDMA engine 1269 * 1270 * @ring: amdgpu_ring structure holding ring information 1271 * @src_offset: src GPU address 1272 * @dst_offset: dst GPU address 1273 * @byte_count: number of bytes to xfer 1274 * 1275 * Copy GPU buffers using the DMA engine (VI). 1276 * Used by the amdgpu ttm implementation to move pages if 1277 * registered as the asic copy callback. 1278 */ 1279 static void sdma_v2_4_emit_copy_buffer(struct amdgpu_ib *ib, 1280 uint64_t src_offset, 1281 uint64_t dst_offset, 1282 uint32_t byte_count) 1283 { 1284 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) | 1285 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR); 1286 ib->ptr[ib->length_dw++] = byte_count; 1287 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ 1288 ib->ptr[ib->length_dw++] = lower_32_bits(src_offset); 1289 ib->ptr[ib->length_dw++] = upper_32_bits(src_offset); 1290 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset); 1291 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset); 1292 } 1293 1294 /** 1295 * sdma_v2_4_emit_fill_buffer - fill buffer using the sDMA engine 1296 * 1297 * @ring: amdgpu_ring structure holding ring information 1298 * @src_data: value to write to buffer 1299 * @dst_offset: dst GPU address 1300 * @byte_count: number of bytes to xfer 1301 * 1302 * Fill GPU buffers using the DMA engine (VI). 1303 */ 1304 static void sdma_v2_4_emit_fill_buffer(struct amdgpu_ib *ib, 1305 uint32_t src_data, 1306 uint64_t dst_offset, 1307 uint32_t byte_count) 1308 { 1309 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL); 1310 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset); 1311 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset); 1312 ib->ptr[ib->length_dw++] = src_data; 1313 ib->ptr[ib->length_dw++] = byte_count; 1314 } 1315 1316 static const struct amdgpu_buffer_funcs sdma_v2_4_buffer_funcs = { 1317 .copy_max_bytes = 0x1fffff, 1318 .copy_num_dw = 7, 1319 .emit_copy_buffer = sdma_v2_4_emit_copy_buffer, 1320 1321 .fill_max_bytes = 0x1fffff, 1322 .fill_num_dw = 7, 1323 .emit_fill_buffer = sdma_v2_4_emit_fill_buffer, 1324 }; 1325 1326 static void sdma_v2_4_set_buffer_funcs(struct amdgpu_device *adev) 1327 { 1328 if (adev->mman.buffer_funcs == NULL) { 1329 adev->mman.buffer_funcs = &sdma_v2_4_buffer_funcs; 1330 adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring; 1331 } 1332 } 1333 1334 static const struct amdgpu_vm_pte_funcs sdma_v2_4_vm_pte_funcs = { 1335 .copy_pte = sdma_v2_4_vm_copy_pte, 1336 .write_pte = sdma_v2_4_vm_write_pte, 1337 .set_pte_pde = sdma_v2_4_vm_set_pte_pde, 1338 }; 1339 1340 static void sdma_v2_4_set_vm_pte_funcs(struct amdgpu_device *adev) 1341 { 1342 unsigned i; 1343 1344 if (adev->vm_manager.vm_pte_funcs == NULL) { 1345 adev->vm_manager.vm_pte_funcs = &sdma_v2_4_vm_pte_funcs; 1346 for (i = 0; i < adev->sdma.num_instances; i++) 1347 adev->vm_manager.vm_pte_rings[i] = 1348 &adev->sdma.instance[i].ring; 1349 1350 adev->vm_manager.vm_pte_num_rings = adev->sdma.num_instances; 1351 } 1352 } 1353