1 /* 2 * Copyright 2016 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 */ 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 30 #include "sdma0/sdma0_4_0_offset.h" 31 #include "sdma0/sdma0_4_0_sh_mask.h" 32 #include "sdma1/sdma1_4_0_offset.h" 33 #include "sdma1/sdma1_4_0_sh_mask.h" 34 #include "mmhub/mmhub_1_0_offset.h" 35 #include "mmhub/mmhub_1_0_sh_mask.h" 36 #include "hdp/hdp_4_0_offset.h" 37 #include "sdma0/sdma0_4_1_default.h" 38 39 #include "soc15_common.h" 40 #include "soc15.h" 41 #include "vega10_sdma_pkt_open.h" 42 43 MODULE_FIRMWARE("amdgpu/vega10_sdma.bin"); 44 MODULE_FIRMWARE("amdgpu/vega10_sdma1.bin"); 45 MODULE_FIRMWARE("amdgpu/raven_sdma.bin"); 46 47 #define SDMA0_POWER_CNTL__ON_OFF_CONDITION_HOLD_TIME_MASK 0x000000F8L 48 #define SDMA0_POWER_CNTL__ON_OFF_STATUS_DURATION_TIME_MASK 0xFC000000L 49 50 static void sdma_v4_0_set_ring_funcs(struct amdgpu_device *adev); 51 static void sdma_v4_0_set_buffer_funcs(struct amdgpu_device *adev); 52 static void sdma_v4_0_set_vm_pte_funcs(struct amdgpu_device *adev); 53 static void sdma_v4_0_set_irq_funcs(struct amdgpu_device *adev); 54 55 static const struct soc15_reg_golden golden_settings_sdma_4[] = { 56 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_CHICKEN_BITS, 0xfe931f07, 0x02831d07), 57 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_CLK_CTRL, 0xff000ff0, 0x3f000100), 58 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GFX_IB_CNTL, 0x800f0100, 0x00000100), 59 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GFX_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000), 60 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_PAGE_IB_CNTL, 0x800f0100, 0x00000100), 61 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_PAGE_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000), 62 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_POWER_CNTL, 0x003ff006, 0x0003c000), 63 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC0_IB_CNTL, 0x800f0100, 0x00000100), 64 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC0_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000), 65 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_IB_CNTL, 0x800f0100, 0x00000100), 66 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000), 67 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_UTCL1_PAGE, 0x000003ff, 0x000003c0), 68 SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_CHICKEN_BITS, 0xfe931f07, 0x02831f07), 69 SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_CLK_CTRL, 0xffffffff, 0x3f000100), 70 SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_GFX_IB_CNTL, 0x800f0100, 0x00000100), 71 SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_GFX_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000), 72 SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_PAGE_IB_CNTL, 0x800f0100, 0x00000100), 73 SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_PAGE_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000), 74 SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_POWER_CNTL, 0x003ff000, 0x0003c000), 75 SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_RLC0_IB_CNTL, 0x800f0100, 0x00000100), 76 SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_RLC0_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000), 77 SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_RLC1_IB_CNTL, 0x800f0100, 0x00000100), 78 SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_RLC1_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000), 79 SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_UTCL1_PAGE, 0x000003ff, 0x000003c0) 80 }; 81 82 static const struct soc15_reg_golden golden_settings_sdma_vg10[] = { 83 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GB_ADDR_CONFIG, 0x0018773f, 0x00104002), 84 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GB_ADDR_CONFIG_READ, 0x0018773f, 0x00104002), 85 SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_GB_ADDR_CONFIG, 0x0018773f, 0x00104002), 86 SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_GB_ADDR_CONFIG_READ, 0x0018773f, 0x00104002) 87 }; 88 89 static const struct soc15_reg_golden golden_settings_sdma_4_1[] = 90 { 91 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_CHICKEN_BITS, 0xfe931f07, 0x02831d07), 92 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_CLK_CTRL, 0xffffffff, 0x3f000100), 93 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GFX_IB_CNTL, 0x800f0111, 0x00000100), 94 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GFX_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000), 95 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_POWER_CNTL, 0xfc3fffff, 0x40000051), 96 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC0_IB_CNTL, 0x800f0111, 0x00000100), 97 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC0_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000), 98 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_IB_CNTL, 0x800f0111, 0x00000100), 99 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000), 100 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_UTCL1_PAGE, 0x000003ff, 0x000003c0) 101 }; 102 103 static const struct soc15_reg_golden golden_settings_sdma_rv1[] = 104 { 105 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GB_ADDR_CONFIG, 0x0018773f, 0x00000002), 106 SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GB_ADDR_CONFIG_READ, 0x0018773f, 0x00000002) 107 }; 108 109 static u32 sdma_v4_0_get_reg_offset(struct amdgpu_device *adev, 110 u32 instance, u32 offset) 111 { 112 return ( 0 == instance ? (adev->reg_offset[SDMA0_HWIP][0][0] + offset) : 113 (adev->reg_offset[SDMA1_HWIP][0][0] + offset)); 114 } 115 116 static void sdma_v4_0_init_golden_registers(struct amdgpu_device *adev) 117 { 118 switch (adev->asic_type) { 119 case CHIP_VEGA10: 120 soc15_program_register_sequence(adev, 121 golden_settings_sdma_4, 122 ARRAY_SIZE(golden_settings_sdma_4)); 123 soc15_program_register_sequence(adev, 124 golden_settings_sdma_vg10, 125 ARRAY_SIZE(golden_settings_sdma_vg10)); 126 break; 127 case CHIP_RAVEN: 128 soc15_program_register_sequence(adev, 129 golden_settings_sdma_4_1, 130 ARRAY_SIZE(golden_settings_sdma_4_1)); 131 soc15_program_register_sequence(adev, 132 golden_settings_sdma_rv1, 133 ARRAY_SIZE(golden_settings_sdma_rv1)); 134 break; 135 default: 136 break; 137 } 138 } 139 140 /** 141 * sdma_v4_0_init_microcode - load ucode images from disk 142 * 143 * @adev: amdgpu_device pointer 144 * 145 * Use the firmware interface to load the ucode images into 146 * the driver (not loaded into hw). 147 * Returns 0 on success, error on failure. 148 */ 149 150 // emulation only, won't work on real chip 151 // vega10 real chip need to use PSP to load firmware 152 static int sdma_v4_0_init_microcode(struct amdgpu_device *adev) 153 { 154 const char *chip_name; 155 char fw_name[30]; 156 int err = 0, i; 157 struct amdgpu_firmware_info *info = NULL; 158 const struct common_firmware_header *header = NULL; 159 const struct sdma_firmware_header_v1_0 *hdr; 160 161 DRM_DEBUG("\n"); 162 163 switch (adev->asic_type) { 164 case CHIP_VEGA10: 165 chip_name = "vega10"; 166 break; 167 case CHIP_RAVEN: 168 chip_name = "raven"; 169 break; 170 default: 171 BUG(); 172 } 173 174 for (i = 0; i < adev->sdma.num_instances; i++) { 175 if (i == 0) 176 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name); 177 else 178 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma1.bin", chip_name); 179 err = request_firmware(&adev->sdma.instance[i].fw, fw_name, adev->dev); 180 if (err) 181 goto out; 182 err = amdgpu_ucode_validate(adev->sdma.instance[i].fw); 183 if (err) 184 goto out; 185 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data; 186 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version); 187 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version); 188 if (adev->sdma.instance[i].feature_version >= 20) 189 adev->sdma.instance[i].burst_nop = true; 190 DRM_DEBUG("psp_load == '%s'\n", 191 adev->firmware.load_type == AMDGPU_FW_LOAD_PSP ? "true" : "false"); 192 193 if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) { 194 info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i]; 195 info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i; 196 info->fw = adev->sdma.instance[i].fw; 197 header = (const struct common_firmware_header *)info->fw->data; 198 adev->firmware.fw_size += 199 ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE); 200 } 201 } 202 out: 203 if (err) { 204 DRM_ERROR("sdma_v4_0: Failed to load firmware \"%s\"\n", fw_name); 205 for (i = 0; i < adev->sdma.num_instances; i++) { 206 release_firmware(adev->sdma.instance[i].fw); 207 adev->sdma.instance[i].fw = NULL; 208 } 209 } 210 return err; 211 } 212 213 /** 214 * sdma_v4_0_ring_get_rptr - get the current read pointer 215 * 216 * @ring: amdgpu ring pointer 217 * 218 * Get the current rptr from the hardware (VEGA10+). 219 */ 220 static uint64_t sdma_v4_0_ring_get_rptr(struct amdgpu_ring *ring) 221 { 222 u64 *rptr; 223 224 /* XXX check if swapping is necessary on BE */ 225 rptr = ((u64 *)&ring->adev->wb.wb[ring->rptr_offs]); 226 227 DRM_DEBUG("rptr before shift == 0x%016llx\n", *rptr); 228 return ((*rptr) >> 2); 229 } 230 231 /** 232 * sdma_v4_0_ring_get_wptr - get the current write pointer 233 * 234 * @ring: amdgpu ring pointer 235 * 236 * Get the current wptr from the hardware (VEGA10+). 237 */ 238 static uint64_t sdma_v4_0_ring_get_wptr(struct amdgpu_ring *ring) 239 { 240 struct amdgpu_device *adev = ring->adev; 241 u64 *wptr = NULL; 242 uint64_t local_wptr = 0; 243 244 if (ring->use_doorbell) { 245 /* XXX check if swapping is necessary on BE */ 246 wptr = ((u64 *)&adev->wb.wb[ring->wptr_offs]); 247 DRM_DEBUG("wptr/doorbell before shift == 0x%016llx\n", *wptr); 248 *wptr = (*wptr) >> 2; 249 DRM_DEBUG("wptr/doorbell after shift == 0x%016llx\n", *wptr); 250 } else { 251 u32 lowbit, highbit; 252 int me = (ring == &adev->sdma.instance[0].ring) ? 0 : 1; 253 254 wptr = &local_wptr; 255 lowbit = RREG32(sdma_v4_0_get_reg_offset(adev, me, mmSDMA0_GFX_RB_WPTR)) >> 2; 256 highbit = RREG32(sdma_v4_0_get_reg_offset(adev, me, mmSDMA0_GFX_RB_WPTR_HI)) >> 2; 257 258 DRM_DEBUG("wptr [%i]high== 0x%08x low==0x%08x\n", 259 me, highbit, lowbit); 260 *wptr = highbit; 261 *wptr = (*wptr) << 32; 262 *wptr |= lowbit; 263 } 264 265 return *wptr; 266 } 267 268 /** 269 * sdma_v4_0_ring_set_wptr - commit the write pointer 270 * 271 * @ring: amdgpu ring pointer 272 * 273 * Write the wptr back to the hardware (VEGA10+). 274 */ 275 static void sdma_v4_0_ring_set_wptr(struct amdgpu_ring *ring) 276 { 277 struct amdgpu_device *adev = ring->adev; 278 279 DRM_DEBUG("Setting write pointer\n"); 280 if (ring->use_doorbell) { 281 u64 *wb = (u64 *)&adev->wb.wb[ring->wptr_offs]; 282 283 DRM_DEBUG("Using doorbell -- " 284 "wptr_offs == 0x%08x " 285 "lower_32_bits(ring->wptr) << 2 == 0x%08x " 286 "upper_32_bits(ring->wptr) << 2 == 0x%08x\n", 287 ring->wptr_offs, 288 lower_32_bits(ring->wptr << 2), 289 upper_32_bits(ring->wptr << 2)); 290 /* XXX check if swapping is necessary on BE */ 291 WRITE_ONCE(*wb, (ring->wptr << 2)); 292 DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n", 293 ring->doorbell_index, ring->wptr << 2); 294 WDOORBELL64(ring->doorbell_index, ring->wptr << 2); 295 } else { 296 int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1; 297 298 DRM_DEBUG("Not using doorbell -- " 299 "mmSDMA%i_GFX_RB_WPTR == 0x%08x " 300 "mmSDMA%i_GFX_RB_WPTR_HI == 0x%08x\n", 301 me, 302 lower_32_bits(ring->wptr << 2), 303 me, 304 upper_32_bits(ring->wptr << 2)); 305 WREG32(sdma_v4_0_get_reg_offset(adev, me, mmSDMA0_GFX_RB_WPTR), lower_32_bits(ring->wptr << 2)); 306 WREG32(sdma_v4_0_get_reg_offset(adev, me, mmSDMA0_GFX_RB_WPTR_HI), upper_32_bits(ring->wptr << 2)); 307 } 308 } 309 310 static void sdma_v4_0_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count) 311 { 312 struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring); 313 int i; 314 315 for (i = 0; i < count; i++) 316 if (sdma && sdma->burst_nop && (i == 0)) 317 amdgpu_ring_write(ring, ring->funcs->nop | 318 SDMA_PKT_NOP_HEADER_COUNT(count - 1)); 319 else 320 amdgpu_ring_write(ring, ring->funcs->nop); 321 } 322 323 /** 324 * sdma_v4_0_ring_emit_ib - Schedule an IB on the DMA engine 325 * 326 * @ring: amdgpu ring pointer 327 * @ib: IB object to schedule 328 * 329 * Schedule an IB in the DMA ring (VEGA10). 330 */ 331 static void sdma_v4_0_ring_emit_ib(struct amdgpu_ring *ring, 332 struct amdgpu_ib *ib, 333 unsigned vmid, bool ctx_switch) 334 { 335 /* IB packet must end on a 8 DW boundary */ 336 sdma_v4_0_ring_insert_nop(ring, (10 - (lower_32_bits(ring->wptr) & 7)) % 8); 337 338 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) | 339 SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf)); 340 /* base must be 32 byte aligned */ 341 amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0); 342 amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr)); 343 amdgpu_ring_write(ring, ib->length_dw); 344 amdgpu_ring_write(ring, 0); 345 amdgpu_ring_write(ring, 0); 346 347 } 348 349 /** 350 * sdma_v4_0_ring_emit_hdp_flush - emit an hdp flush on the DMA ring 351 * 352 * @ring: amdgpu ring pointer 353 * 354 * Emit an hdp flush packet on the requested DMA ring. 355 */ 356 static void sdma_v4_0_ring_emit_hdp_flush(struct amdgpu_ring *ring) 357 { 358 struct amdgpu_device *adev = ring->adev; 359 u32 ref_and_mask = 0; 360 const struct nbio_hdp_flush_reg *nbio_hf_reg = adev->nbio_funcs->hdp_flush_reg; 361 362 if (ring == &ring->adev->sdma.instance[0].ring) 363 ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0; 364 else 365 ref_and_mask = nbio_hf_reg->ref_and_mask_sdma1; 366 367 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | 368 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) | 369 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */ 370 amdgpu_ring_write(ring, (adev->nbio_funcs->get_hdp_flush_done_offset(adev)) << 2); 371 amdgpu_ring_write(ring, (adev->nbio_funcs->get_hdp_flush_req_offset(adev)) << 2); 372 amdgpu_ring_write(ring, ref_and_mask); /* reference */ 373 amdgpu_ring_write(ring, ref_and_mask); /* mask */ 374 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | 375 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */ 376 } 377 378 static void sdma_v4_0_ring_emit_hdp_invalidate(struct amdgpu_ring *ring) 379 { 380 struct amdgpu_device *adev = ring->adev; 381 382 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) | 383 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf)); 384 amdgpu_ring_write(ring, SOC15_REG_OFFSET(HDP, 0, mmHDP_READ_CACHE_INVALIDATE)); 385 amdgpu_ring_write(ring, 1); 386 } 387 388 /** 389 * sdma_v4_0_ring_emit_fence - emit a fence on the DMA ring 390 * 391 * @ring: amdgpu ring pointer 392 * @fence: amdgpu fence object 393 * 394 * Add a DMA fence packet to the ring to write 395 * the fence seq number and DMA trap packet to generate 396 * an interrupt if needed (VEGA10). 397 */ 398 static void sdma_v4_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq, 399 unsigned flags) 400 { 401 bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT; 402 /* write the fence */ 403 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE)); 404 /* zero in first two bits */ 405 BUG_ON(addr & 0x3); 406 amdgpu_ring_write(ring, lower_32_bits(addr)); 407 amdgpu_ring_write(ring, upper_32_bits(addr)); 408 amdgpu_ring_write(ring, lower_32_bits(seq)); 409 410 /* optionally write high bits as well */ 411 if (write64bit) { 412 addr += 4; 413 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE)); 414 /* zero in first two bits */ 415 BUG_ON(addr & 0x3); 416 amdgpu_ring_write(ring, lower_32_bits(addr)); 417 amdgpu_ring_write(ring, upper_32_bits(addr)); 418 amdgpu_ring_write(ring, upper_32_bits(seq)); 419 } 420 421 /* generate an interrupt */ 422 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP)); 423 amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0)); 424 } 425 426 427 /** 428 * sdma_v4_0_gfx_stop - stop the gfx async dma engines 429 * 430 * @adev: amdgpu_device pointer 431 * 432 * Stop the gfx async dma ring buffers (VEGA10). 433 */ 434 static void sdma_v4_0_gfx_stop(struct amdgpu_device *adev) 435 { 436 struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].ring; 437 struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].ring; 438 u32 rb_cntl, ib_cntl; 439 int i; 440 441 if ((adev->mman.buffer_funcs_ring == sdma0) || 442 (adev->mman.buffer_funcs_ring == sdma1)) 443 amdgpu_ttm_set_active_vram_size(adev, adev->mc.visible_vram_size); 444 445 for (i = 0; i < adev->sdma.num_instances; i++) { 446 rb_cntl = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL)); 447 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0); 448 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl); 449 ib_cntl = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL)); 450 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0); 451 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl); 452 } 453 454 sdma0->ready = false; 455 sdma1->ready = false; 456 } 457 458 /** 459 * sdma_v4_0_rlc_stop - stop the compute async dma engines 460 * 461 * @adev: amdgpu_device pointer 462 * 463 * Stop the compute async dma queues (VEGA10). 464 */ 465 static void sdma_v4_0_rlc_stop(struct amdgpu_device *adev) 466 { 467 /* XXX todo */ 468 } 469 470 /** 471 * sdma_v_0_ctx_switch_enable - stop the async dma engines context switch 472 * 473 * @adev: amdgpu_device pointer 474 * @enable: enable/disable the DMA MEs context switch. 475 * 476 * Halt or unhalt the async dma engines context switch (VEGA10). 477 */ 478 static void sdma_v4_0_ctx_switch_enable(struct amdgpu_device *adev, bool enable) 479 { 480 u32 f32_cntl, phase_quantum = 0; 481 int i; 482 483 if (amdgpu_sdma_phase_quantum) { 484 unsigned value = amdgpu_sdma_phase_quantum; 485 unsigned unit = 0; 486 487 while (value > (SDMA0_PHASE0_QUANTUM__VALUE_MASK >> 488 SDMA0_PHASE0_QUANTUM__VALUE__SHIFT)) { 489 value = (value + 1) >> 1; 490 unit++; 491 } 492 if (unit > (SDMA0_PHASE0_QUANTUM__UNIT_MASK >> 493 SDMA0_PHASE0_QUANTUM__UNIT__SHIFT)) { 494 value = (SDMA0_PHASE0_QUANTUM__VALUE_MASK >> 495 SDMA0_PHASE0_QUANTUM__VALUE__SHIFT); 496 unit = (SDMA0_PHASE0_QUANTUM__UNIT_MASK >> 497 SDMA0_PHASE0_QUANTUM__UNIT__SHIFT); 498 WARN_ONCE(1, 499 "clamping sdma_phase_quantum to %uK clock cycles\n", 500 value << unit); 501 } 502 phase_quantum = 503 value << SDMA0_PHASE0_QUANTUM__VALUE__SHIFT | 504 unit << SDMA0_PHASE0_QUANTUM__UNIT__SHIFT; 505 } 506 507 for (i = 0; i < adev->sdma.num_instances; i++) { 508 f32_cntl = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_CNTL)); 509 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL, 510 AUTO_CTXSW_ENABLE, enable ? 1 : 0); 511 if (enable && amdgpu_sdma_phase_quantum) { 512 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_PHASE0_QUANTUM), 513 phase_quantum); 514 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_PHASE1_QUANTUM), 515 phase_quantum); 516 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_PHASE2_QUANTUM), 517 phase_quantum); 518 } 519 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_CNTL), f32_cntl); 520 } 521 522 } 523 524 /** 525 * sdma_v4_0_enable - stop the async dma engines 526 * 527 * @adev: amdgpu_device pointer 528 * @enable: enable/disable the DMA MEs. 529 * 530 * Halt or unhalt the async dma engines (VEGA10). 531 */ 532 static void sdma_v4_0_enable(struct amdgpu_device *adev, bool enable) 533 { 534 u32 f32_cntl; 535 int i; 536 537 if (enable == false) { 538 sdma_v4_0_gfx_stop(adev); 539 sdma_v4_0_rlc_stop(adev); 540 } 541 542 for (i = 0; i < adev->sdma.num_instances; i++) { 543 f32_cntl = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL)); 544 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, enable ? 0 : 1); 545 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), f32_cntl); 546 } 547 } 548 549 /** 550 * sdma_v4_0_gfx_resume - setup and start the async dma engines 551 * 552 * @adev: amdgpu_device pointer 553 * 554 * Set up the gfx DMA ring buffers and enable them (VEGA10). 555 * Returns 0 for success, error for failure. 556 */ 557 static int sdma_v4_0_gfx_resume(struct amdgpu_device *adev) 558 { 559 struct amdgpu_ring *ring; 560 u32 rb_cntl, ib_cntl, wptr_poll_cntl; 561 u32 rb_bufsz; 562 u32 wb_offset; 563 u32 doorbell; 564 u32 doorbell_offset; 565 u32 temp; 566 u64 wptr_gpu_addr; 567 int i, r; 568 569 for (i = 0; i < adev->sdma.num_instances; i++) { 570 ring = &adev->sdma.instance[i].ring; 571 wb_offset = (ring->rptr_offs * 4); 572 573 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL), 0); 574 575 /* Set ring buffer size in dwords */ 576 rb_bufsz = order_base_2(ring->ring_size / 4); 577 rb_cntl = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL)); 578 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz); 579 #ifdef __BIG_ENDIAN 580 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1); 581 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, 582 RPTR_WRITEBACK_SWAP_ENABLE, 1); 583 #endif 584 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl); 585 586 /* Initialize the ring buffer's read and write pointers */ 587 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR), 0); 588 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_HI), 0); 589 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), 0); 590 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), 0); 591 592 /* set the wb address whether it's enabled or not */ 593 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_HI), 594 upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF); 595 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_LO), 596 lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC); 597 598 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1); 599 600 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE), ring->gpu_addr >> 8); 601 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE_HI), ring->gpu_addr >> 40); 602 603 ring->wptr = 0; 604 605 /* before programing wptr to a less value, need set minor_ptr_update first */ 606 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 1); 607 608 if (!amdgpu_sriov_vf(adev)) { /* only bare-metal use register write for wptr */ 609 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), lower_32_bits(ring->wptr) << 2); 610 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), upper_32_bits(ring->wptr) << 2); 611 } 612 613 doorbell = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL)); 614 doorbell_offset = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET)); 615 616 if (ring->use_doorbell) { 617 doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 1); 618 doorbell_offset = REG_SET_FIELD(doorbell_offset, SDMA0_GFX_DOORBELL_OFFSET, 619 OFFSET, ring->doorbell_index); 620 } else { 621 doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 0); 622 } 623 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL), doorbell); 624 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET), doorbell_offset); 625 adev->nbio_funcs->sdma_doorbell_range(adev, i, ring->use_doorbell, 626 ring->doorbell_index); 627 628 if (amdgpu_sriov_vf(adev)) 629 sdma_v4_0_ring_set_wptr(ring); 630 631 /* set minor_ptr_update to 0 after wptr programed */ 632 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 0); 633 634 /* set utc l1 enable flag always to 1 */ 635 temp = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_CNTL)); 636 temp = REG_SET_FIELD(temp, SDMA0_CNTL, UTC_L1_ENABLE, 1); 637 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_CNTL), temp); 638 639 if (!amdgpu_sriov_vf(adev)) { 640 /* unhalt engine */ 641 temp = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL)); 642 temp = REG_SET_FIELD(temp, SDMA0_F32_CNTL, HALT, 0); 643 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), temp); 644 } 645 646 /* setup the wptr shadow polling */ 647 wptr_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4); 648 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_LO), 649 lower_32_bits(wptr_gpu_addr)); 650 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI), 651 upper_32_bits(wptr_gpu_addr)); 652 wptr_poll_cntl = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_CNTL)); 653 if (amdgpu_sriov_vf(adev)) 654 wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 1); 655 else 656 wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 0); 657 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_CNTL), wptr_poll_cntl); 658 659 /* enable DMA RB */ 660 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1); 661 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl); 662 663 ib_cntl = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL)); 664 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1); 665 #ifdef __BIG_ENDIAN 666 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1); 667 #endif 668 /* enable DMA IBs */ 669 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl); 670 671 ring->ready = true; 672 673 if (amdgpu_sriov_vf(adev)) { /* bare-metal sequence doesn't need below to lines */ 674 sdma_v4_0_ctx_switch_enable(adev, true); 675 sdma_v4_0_enable(adev, true); 676 } 677 678 r = amdgpu_ring_test_ring(ring); 679 if (r) { 680 ring->ready = false; 681 return r; 682 } 683 684 if (adev->mman.buffer_funcs_ring == ring) 685 amdgpu_ttm_set_active_vram_size(adev, adev->mc.real_vram_size); 686 687 } 688 689 return 0; 690 } 691 692 static void 693 sdma_v4_1_update_power_gating(struct amdgpu_device *adev, bool enable) 694 { 695 uint32_t def, data; 696 697 if (enable && (adev->pg_flags & AMD_PG_SUPPORT_SDMA)) { 698 /* disable idle interrupt */ 699 def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CNTL)); 700 data |= SDMA0_CNTL__CTXEMPTY_INT_ENABLE_MASK; 701 702 if (data != def) 703 WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CNTL), data); 704 } else { 705 /* disable idle interrupt */ 706 def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CNTL)); 707 data &= ~SDMA0_CNTL__CTXEMPTY_INT_ENABLE_MASK; 708 if (data != def) 709 WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CNTL), data); 710 } 711 } 712 713 static void sdma_v4_1_init_power_gating(struct amdgpu_device *adev) 714 { 715 uint32_t def, data; 716 717 /* Enable HW based PG. */ 718 def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL)); 719 data |= SDMA0_POWER_CNTL__PG_CNTL_ENABLE_MASK; 720 if (data != def) 721 WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL), data); 722 723 /* enable interrupt */ 724 def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CNTL)); 725 data |= SDMA0_CNTL__CTXEMPTY_INT_ENABLE_MASK; 726 if (data != def) 727 WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CNTL), data); 728 729 /* Configure hold time to filter in-valid power on/off request. Use default right now */ 730 def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL)); 731 data &= ~SDMA0_POWER_CNTL__ON_OFF_CONDITION_HOLD_TIME_MASK; 732 data |= (mmSDMA0_POWER_CNTL_DEFAULT & SDMA0_POWER_CNTL__ON_OFF_CONDITION_HOLD_TIME_MASK); 733 /* Configure switch time for hysteresis purpose. Use default right now */ 734 data &= ~SDMA0_POWER_CNTL__ON_OFF_STATUS_DURATION_TIME_MASK; 735 data |= (mmSDMA0_POWER_CNTL_DEFAULT & SDMA0_POWER_CNTL__ON_OFF_STATUS_DURATION_TIME_MASK); 736 if(data != def) 737 WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL), data); 738 } 739 740 static void sdma_v4_0_init_pg(struct amdgpu_device *adev) 741 { 742 if (!(adev->pg_flags & AMD_PG_SUPPORT_SDMA)) 743 return; 744 745 switch (adev->asic_type) { 746 case CHIP_RAVEN: 747 sdma_v4_1_init_power_gating(adev); 748 sdma_v4_1_update_power_gating(adev, true); 749 break; 750 default: 751 break; 752 } 753 } 754 755 /** 756 * sdma_v4_0_rlc_resume - setup and start the async dma engines 757 * 758 * @adev: amdgpu_device pointer 759 * 760 * Set up the compute DMA queues and enable them (VEGA10). 761 * Returns 0 for success, error for failure. 762 */ 763 static int sdma_v4_0_rlc_resume(struct amdgpu_device *adev) 764 { 765 sdma_v4_0_init_pg(adev); 766 767 return 0; 768 } 769 770 /** 771 * sdma_v4_0_load_microcode - load the sDMA ME ucode 772 * 773 * @adev: amdgpu_device pointer 774 * 775 * Loads the sDMA0/1 ucode. 776 * Returns 0 for success, -EINVAL if the ucode is not available. 777 */ 778 static int sdma_v4_0_load_microcode(struct amdgpu_device *adev) 779 { 780 const struct sdma_firmware_header_v1_0 *hdr; 781 const __le32 *fw_data; 782 u32 fw_size; 783 int i, j; 784 785 /* halt the MEs */ 786 sdma_v4_0_enable(adev, false); 787 788 for (i = 0; i < adev->sdma.num_instances; i++) { 789 if (!adev->sdma.instance[i].fw) 790 return -EINVAL; 791 792 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data; 793 amdgpu_ucode_print_sdma_hdr(&hdr->header); 794 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; 795 796 fw_data = (const __le32 *) 797 (adev->sdma.instance[i].fw->data + 798 le32_to_cpu(hdr->header.ucode_array_offset_bytes)); 799 800 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), 0); 801 802 for (j = 0; j < fw_size; j++) 803 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_UCODE_DATA), le32_to_cpup(fw_data++)); 804 805 WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), adev->sdma.instance[i].fw_version); 806 } 807 808 return 0; 809 } 810 811 /** 812 * sdma_v4_0_start - setup and start the async dma engines 813 * 814 * @adev: amdgpu_device pointer 815 * 816 * Set up the DMA engines and enable them (VEGA10). 817 * Returns 0 for success, error for failure. 818 */ 819 static int sdma_v4_0_start(struct amdgpu_device *adev) 820 { 821 int r = 0; 822 823 if (amdgpu_sriov_vf(adev)) { 824 sdma_v4_0_ctx_switch_enable(adev, false); 825 sdma_v4_0_enable(adev, false); 826 827 /* set RB registers */ 828 r = sdma_v4_0_gfx_resume(adev); 829 return r; 830 } 831 832 if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) { 833 r = sdma_v4_0_load_microcode(adev); 834 if (r) 835 return r; 836 } 837 838 /* unhalt the MEs */ 839 sdma_v4_0_enable(adev, true); 840 /* enable sdma ring preemption */ 841 sdma_v4_0_ctx_switch_enable(adev, true); 842 843 /* start the gfx rings and rlc compute queues */ 844 r = sdma_v4_0_gfx_resume(adev); 845 if (r) 846 return r; 847 r = sdma_v4_0_rlc_resume(adev); 848 849 return r; 850 } 851 852 /** 853 * sdma_v4_0_ring_test_ring - simple async dma engine test 854 * 855 * @ring: amdgpu_ring structure holding ring information 856 * 857 * Test the DMA engine by writing using it to write an 858 * value to memory. (VEGA10). 859 * Returns 0 for success, error for failure. 860 */ 861 static int sdma_v4_0_ring_test_ring(struct amdgpu_ring *ring) 862 { 863 struct amdgpu_device *adev = ring->adev; 864 unsigned i; 865 unsigned index; 866 int r; 867 u32 tmp; 868 u64 gpu_addr; 869 870 r = amdgpu_device_wb_get(adev, &index); 871 if (r) { 872 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r); 873 return r; 874 } 875 876 gpu_addr = adev->wb.gpu_addr + (index * 4); 877 tmp = 0xCAFEDEAD; 878 adev->wb.wb[index] = cpu_to_le32(tmp); 879 880 r = amdgpu_ring_alloc(ring, 5); 881 if (r) { 882 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r); 883 amdgpu_device_wb_free(adev, index); 884 return r; 885 } 886 887 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) | 888 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR)); 889 amdgpu_ring_write(ring, lower_32_bits(gpu_addr)); 890 amdgpu_ring_write(ring, upper_32_bits(gpu_addr)); 891 amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0)); 892 amdgpu_ring_write(ring, 0xDEADBEEF); 893 amdgpu_ring_commit(ring); 894 895 for (i = 0; i < adev->usec_timeout; i++) { 896 tmp = le32_to_cpu(adev->wb.wb[index]); 897 if (tmp == 0xDEADBEEF) 898 break; 899 DRM_UDELAY(1); 900 } 901 902 if (i < adev->usec_timeout) { 903 DRM_DEBUG("ring test on %d succeeded in %d usecs\n", ring->idx, i); 904 } else { 905 DRM_ERROR("amdgpu: ring %d test failed (0x%08X)\n", 906 ring->idx, tmp); 907 r = -EINVAL; 908 } 909 amdgpu_device_wb_free(adev, index); 910 911 return r; 912 } 913 914 /** 915 * sdma_v4_0_ring_test_ib - test an IB on the DMA engine 916 * 917 * @ring: amdgpu_ring structure holding ring information 918 * 919 * Test a simple IB in the DMA ring (VEGA10). 920 * Returns 0 on success, error on failure. 921 */ 922 static int sdma_v4_0_ring_test_ib(struct amdgpu_ring *ring, long timeout) 923 { 924 struct amdgpu_device *adev = ring->adev; 925 struct amdgpu_ib ib; 926 struct dma_fence *f = NULL; 927 unsigned index; 928 long r; 929 u32 tmp = 0; 930 u64 gpu_addr; 931 932 r = amdgpu_device_wb_get(adev, &index); 933 if (r) { 934 dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r); 935 return r; 936 } 937 938 gpu_addr = adev->wb.gpu_addr + (index * 4); 939 tmp = 0xCAFEDEAD; 940 adev->wb.wb[index] = cpu_to_le32(tmp); 941 memset(&ib, 0, sizeof(ib)); 942 r = amdgpu_ib_get(adev, NULL, 256, &ib); 943 if (r) { 944 DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r); 945 goto err0; 946 } 947 948 ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) | 949 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR); 950 ib.ptr[1] = lower_32_bits(gpu_addr); 951 ib.ptr[2] = upper_32_bits(gpu_addr); 952 ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0); 953 ib.ptr[4] = 0xDEADBEEF; 954 ib.ptr[5] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP); 955 ib.ptr[6] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP); 956 ib.ptr[7] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP); 957 ib.length_dw = 8; 958 959 r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f); 960 if (r) 961 goto err1; 962 963 r = dma_fence_wait_timeout(f, false, timeout); 964 if (r == 0) { 965 DRM_ERROR("amdgpu: IB test timed out\n"); 966 r = -ETIMEDOUT; 967 goto err1; 968 } else if (r < 0) { 969 DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r); 970 goto err1; 971 } 972 tmp = le32_to_cpu(adev->wb.wb[index]); 973 if (tmp == 0xDEADBEEF) { 974 DRM_DEBUG("ib test on ring %d succeeded\n", ring->idx); 975 r = 0; 976 } else { 977 DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp); 978 r = -EINVAL; 979 } 980 err1: 981 amdgpu_ib_free(adev, &ib, NULL); 982 dma_fence_put(f); 983 err0: 984 amdgpu_device_wb_free(adev, index); 985 return r; 986 } 987 988 989 /** 990 * sdma_v4_0_vm_copy_pte - update PTEs by copying them from the GART 991 * 992 * @ib: indirect buffer to fill with commands 993 * @pe: addr of the page entry 994 * @src: src addr to copy from 995 * @count: number of page entries to update 996 * 997 * Update PTEs by copying them from the GART using sDMA (VEGA10). 998 */ 999 static void sdma_v4_0_vm_copy_pte(struct amdgpu_ib *ib, 1000 uint64_t pe, uint64_t src, 1001 unsigned count) 1002 { 1003 unsigned bytes = count * 8; 1004 1005 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) | 1006 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR); 1007 ib->ptr[ib->length_dw++] = bytes - 1; 1008 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ 1009 ib->ptr[ib->length_dw++] = lower_32_bits(src); 1010 ib->ptr[ib->length_dw++] = upper_32_bits(src); 1011 ib->ptr[ib->length_dw++] = lower_32_bits(pe); 1012 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 1013 1014 } 1015 1016 /** 1017 * sdma_v4_0_vm_write_pte - update PTEs by writing them manually 1018 * 1019 * @ib: indirect buffer to fill with commands 1020 * @pe: addr of the page entry 1021 * @addr: dst addr to write into pe 1022 * @count: number of page entries to update 1023 * @incr: increase next addr by incr bytes 1024 * @flags: access flags 1025 * 1026 * Update PTEs by writing them manually using sDMA (VEGA10). 1027 */ 1028 static void sdma_v4_0_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe, 1029 uint64_t value, unsigned count, 1030 uint32_t incr) 1031 { 1032 unsigned ndw = count * 2; 1033 1034 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) | 1035 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR); 1036 ib->ptr[ib->length_dw++] = lower_32_bits(pe); 1037 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 1038 ib->ptr[ib->length_dw++] = ndw - 1; 1039 for (; ndw > 0; ndw -= 2) { 1040 ib->ptr[ib->length_dw++] = lower_32_bits(value); 1041 ib->ptr[ib->length_dw++] = upper_32_bits(value); 1042 value += incr; 1043 } 1044 } 1045 1046 /** 1047 * sdma_v4_0_vm_set_pte_pde - update the page tables using sDMA 1048 * 1049 * @ib: indirect buffer to fill with commands 1050 * @pe: addr of the page entry 1051 * @addr: dst addr to write into pe 1052 * @count: number of page entries to update 1053 * @incr: increase next addr by incr bytes 1054 * @flags: access flags 1055 * 1056 * Update the page tables using sDMA (VEGA10). 1057 */ 1058 static void sdma_v4_0_vm_set_pte_pde(struct amdgpu_ib *ib, 1059 uint64_t pe, 1060 uint64_t addr, unsigned count, 1061 uint32_t incr, uint64_t flags) 1062 { 1063 /* for physically contiguous pages (vram) */ 1064 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_PTEPDE); 1065 ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */ 1066 ib->ptr[ib->length_dw++] = upper_32_bits(pe); 1067 ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */ 1068 ib->ptr[ib->length_dw++] = upper_32_bits(flags); 1069 ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */ 1070 ib->ptr[ib->length_dw++] = upper_32_bits(addr); 1071 ib->ptr[ib->length_dw++] = incr; /* increment size */ 1072 ib->ptr[ib->length_dw++] = 0; 1073 ib->ptr[ib->length_dw++] = count - 1; /* number of entries */ 1074 } 1075 1076 /** 1077 * sdma_v4_0_ring_pad_ib - pad the IB to the required number of dw 1078 * 1079 * @ib: indirect buffer to fill with padding 1080 * 1081 */ 1082 static void sdma_v4_0_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib) 1083 { 1084 struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring); 1085 u32 pad_count; 1086 int i; 1087 1088 pad_count = (8 - (ib->length_dw & 0x7)) % 8; 1089 for (i = 0; i < pad_count; i++) 1090 if (sdma && sdma->burst_nop && (i == 0)) 1091 ib->ptr[ib->length_dw++] = 1092 SDMA_PKT_HEADER_OP(SDMA_OP_NOP) | 1093 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1); 1094 else 1095 ib->ptr[ib->length_dw++] = 1096 SDMA_PKT_HEADER_OP(SDMA_OP_NOP); 1097 } 1098 1099 1100 /** 1101 * sdma_v4_0_ring_emit_pipeline_sync - sync the pipeline 1102 * 1103 * @ring: amdgpu_ring pointer 1104 * 1105 * Make sure all previous operations are completed (CIK). 1106 */ 1107 static void sdma_v4_0_ring_emit_pipeline_sync(struct amdgpu_ring *ring) 1108 { 1109 uint32_t seq = ring->fence_drv.sync_seq; 1110 uint64_t addr = ring->fence_drv.gpu_addr; 1111 1112 /* wait for idle */ 1113 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | 1114 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) | 1115 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */ 1116 SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1)); 1117 amdgpu_ring_write(ring, addr & 0xfffffffc); 1118 amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff); 1119 amdgpu_ring_write(ring, seq); /* reference */ 1120 amdgpu_ring_write(ring, 0xfffffff); /* mask */ 1121 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | 1122 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */ 1123 } 1124 1125 1126 /** 1127 * sdma_v4_0_ring_emit_vm_flush - vm flush using sDMA 1128 * 1129 * @ring: amdgpu_ring pointer 1130 * @vm: amdgpu_vm pointer 1131 * 1132 * Update the page table base and flush the VM TLB 1133 * using sDMA (VEGA10). 1134 */ 1135 static void sdma_v4_0_ring_emit_vm_flush(struct amdgpu_ring *ring, 1136 unsigned vmid, uint64_t pd_addr) 1137 { 1138 struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub]; 1139 uint32_t req = ring->adev->gart.gart_funcs->get_invalidate_req(vmid); 1140 uint64_t flags = AMDGPU_PTE_VALID; 1141 unsigned eng = ring->vm_inv_eng; 1142 1143 amdgpu_gart_get_vm_pde(ring->adev, -1, &pd_addr, &flags); 1144 pd_addr |= flags; 1145 1146 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) | 1147 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf)); 1148 amdgpu_ring_write(ring, hub->ctx0_ptb_addr_lo32 + vmid * 2); 1149 amdgpu_ring_write(ring, lower_32_bits(pd_addr)); 1150 1151 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) | 1152 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf)); 1153 amdgpu_ring_write(ring, hub->ctx0_ptb_addr_hi32 + vmid * 2); 1154 amdgpu_ring_write(ring, upper_32_bits(pd_addr)); 1155 1156 /* flush TLB */ 1157 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) | 1158 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf)); 1159 amdgpu_ring_write(ring, hub->vm_inv_eng0_req + eng); 1160 amdgpu_ring_write(ring, req); 1161 1162 /* wait for flush */ 1163 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | 1164 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) | 1165 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* equal */ 1166 amdgpu_ring_write(ring, (hub->vm_inv_eng0_ack + eng) << 2); 1167 amdgpu_ring_write(ring, 0); 1168 amdgpu_ring_write(ring, 1 << vmid); /* reference */ 1169 amdgpu_ring_write(ring, 1 << vmid); /* mask */ 1170 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | 1171 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); 1172 } 1173 1174 static int sdma_v4_0_early_init(void *handle) 1175 { 1176 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1177 1178 if (adev->asic_type == CHIP_RAVEN) 1179 adev->sdma.num_instances = 1; 1180 else 1181 adev->sdma.num_instances = 2; 1182 1183 sdma_v4_0_set_ring_funcs(adev); 1184 sdma_v4_0_set_buffer_funcs(adev); 1185 sdma_v4_0_set_vm_pte_funcs(adev); 1186 sdma_v4_0_set_irq_funcs(adev); 1187 1188 return 0; 1189 } 1190 1191 1192 static int sdma_v4_0_sw_init(void *handle) 1193 { 1194 struct amdgpu_ring *ring; 1195 int r, i; 1196 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1197 1198 /* SDMA trap event */ 1199 r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_SDMA0, 224, 1200 &adev->sdma.trap_irq); 1201 if (r) 1202 return r; 1203 1204 /* SDMA trap event */ 1205 r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_SDMA1, 224, 1206 &adev->sdma.trap_irq); 1207 if (r) 1208 return r; 1209 1210 r = sdma_v4_0_init_microcode(adev); 1211 if (r) { 1212 DRM_ERROR("Failed to load sdma firmware!\n"); 1213 return r; 1214 } 1215 1216 for (i = 0; i < adev->sdma.num_instances; i++) { 1217 ring = &adev->sdma.instance[i].ring; 1218 ring->ring_obj = NULL; 1219 ring->use_doorbell = true; 1220 1221 DRM_INFO("use_doorbell being set to: [%s]\n", 1222 ring->use_doorbell?"true":"false"); 1223 1224 ring->doorbell_index = (i == 0) ? 1225 (AMDGPU_DOORBELL64_sDMA_ENGINE0 << 1) //get DWORD offset 1226 : (AMDGPU_DOORBELL64_sDMA_ENGINE1 << 1); // get DWORD offset 1227 1228 sprintf(ring->name, "sdma%d", i); 1229 r = amdgpu_ring_init(adev, ring, 1024, 1230 &adev->sdma.trap_irq, 1231 (i == 0) ? 1232 AMDGPU_SDMA_IRQ_TRAP0 : 1233 AMDGPU_SDMA_IRQ_TRAP1); 1234 if (r) 1235 return r; 1236 } 1237 1238 return r; 1239 } 1240 1241 static int sdma_v4_0_sw_fini(void *handle) 1242 { 1243 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1244 int i; 1245 1246 for (i = 0; i < adev->sdma.num_instances; i++) 1247 amdgpu_ring_fini(&adev->sdma.instance[i].ring); 1248 1249 for (i = 0; i < adev->sdma.num_instances; i++) { 1250 release_firmware(adev->sdma.instance[i].fw); 1251 adev->sdma.instance[i].fw = NULL; 1252 } 1253 1254 return 0; 1255 } 1256 1257 static int sdma_v4_0_hw_init(void *handle) 1258 { 1259 int r; 1260 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1261 1262 sdma_v4_0_init_golden_registers(adev); 1263 1264 r = sdma_v4_0_start(adev); 1265 1266 return r; 1267 } 1268 1269 static int sdma_v4_0_hw_fini(void *handle) 1270 { 1271 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1272 1273 if (amdgpu_sriov_vf(adev)) 1274 return 0; 1275 1276 sdma_v4_0_ctx_switch_enable(adev, false); 1277 sdma_v4_0_enable(adev, false); 1278 1279 return 0; 1280 } 1281 1282 static int sdma_v4_0_suspend(void *handle) 1283 { 1284 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1285 1286 return sdma_v4_0_hw_fini(adev); 1287 } 1288 1289 static int sdma_v4_0_resume(void *handle) 1290 { 1291 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1292 1293 return sdma_v4_0_hw_init(adev); 1294 } 1295 1296 static bool sdma_v4_0_is_idle(void *handle) 1297 { 1298 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1299 u32 i; 1300 1301 for (i = 0; i < adev->sdma.num_instances; i++) { 1302 u32 tmp = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_STATUS_REG)); 1303 1304 if (!(tmp & SDMA0_STATUS_REG__IDLE_MASK)) 1305 return false; 1306 } 1307 1308 return true; 1309 } 1310 1311 static int sdma_v4_0_wait_for_idle(void *handle) 1312 { 1313 unsigned i; 1314 u32 sdma0, sdma1; 1315 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1316 1317 for (i = 0; i < adev->usec_timeout; i++) { 1318 sdma0 = RREG32(sdma_v4_0_get_reg_offset(adev, 0, mmSDMA0_STATUS_REG)); 1319 sdma1 = RREG32(sdma_v4_0_get_reg_offset(adev, 1, mmSDMA0_STATUS_REG)); 1320 1321 if (sdma0 & sdma1 & SDMA0_STATUS_REG__IDLE_MASK) 1322 return 0; 1323 udelay(1); 1324 } 1325 return -ETIMEDOUT; 1326 } 1327 1328 static int sdma_v4_0_soft_reset(void *handle) 1329 { 1330 /* todo */ 1331 1332 return 0; 1333 } 1334 1335 static int sdma_v4_0_set_trap_irq_state(struct amdgpu_device *adev, 1336 struct amdgpu_irq_src *source, 1337 unsigned type, 1338 enum amdgpu_interrupt_state state) 1339 { 1340 u32 sdma_cntl; 1341 1342 u32 reg_offset = (type == AMDGPU_SDMA_IRQ_TRAP0) ? 1343 sdma_v4_0_get_reg_offset(adev, 0, mmSDMA0_CNTL) : 1344 sdma_v4_0_get_reg_offset(adev, 1, mmSDMA0_CNTL); 1345 1346 sdma_cntl = RREG32(reg_offset); 1347 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1348 state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0); 1349 WREG32(reg_offset, sdma_cntl); 1350 1351 return 0; 1352 } 1353 1354 static int sdma_v4_0_process_trap_irq(struct amdgpu_device *adev, 1355 struct amdgpu_irq_src *source, 1356 struct amdgpu_iv_entry *entry) 1357 { 1358 DRM_DEBUG("IH: SDMA trap\n"); 1359 switch (entry->client_id) { 1360 case AMDGPU_IH_CLIENTID_SDMA0: 1361 switch (entry->ring_id) { 1362 case 0: 1363 amdgpu_fence_process(&adev->sdma.instance[0].ring); 1364 break; 1365 case 1: 1366 /* XXX compute */ 1367 break; 1368 case 2: 1369 /* XXX compute */ 1370 break; 1371 case 3: 1372 /* XXX page queue*/ 1373 break; 1374 } 1375 break; 1376 case AMDGPU_IH_CLIENTID_SDMA1: 1377 switch (entry->ring_id) { 1378 case 0: 1379 amdgpu_fence_process(&adev->sdma.instance[1].ring); 1380 break; 1381 case 1: 1382 /* XXX compute */ 1383 break; 1384 case 2: 1385 /* XXX compute */ 1386 break; 1387 case 3: 1388 /* XXX page queue*/ 1389 break; 1390 } 1391 break; 1392 } 1393 return 0; 1394 } 1395 1396 static int sdma_v4_0_process_illegal_inst_irq(struct amdgpu_device *adev, 1397 struct amdgpu_irq_src *source, 1398 struct amdgpu_iv_entry *entry) 1399 { 1400 DRM_ERROR("Illegal instruction in SDMA command stream\n"); 1401 schedule_work(&adev->reset_work); 1402 return 0; 1403 } 1404 1405 1406 static void sdma_v4_0_update_medium_grain_clock_gating( 1407 struct amdgpu_device *adev, 1408 bool enable) 1409 { 1410 uint32_t data, def; 1411 1412 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) { 1413 /* enable sdma0 clock gating */ 1414 def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CLK_CTRL)); 1415 data &= ~(SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK | 1416 SDMA0_CLK_CTRL__SOFT_OVERRIDE6_MASK | 1417 SDMA0_CLK_CTRL__SOFT_OVERRIDE5_MASK | 1418 SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK | 1419 SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK | 1420 SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK | 1421 SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK | 1422 SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK); 1423 if (def != data) 1424 WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CLK_CTRL), data); 1425 1426 if (adev->asic_type == CHIP_VEGA10) { 1427 def = data = RREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_CLK_CTRL)); 1428 data &= ~(SDMA1_CLK_CTRL__SOFT_OVERRIDE7_MASK | 1429 SDMA1_CLK_CTRL__SOFT_OVERRIDE6_MASK | 1430 SDMA1_CLK_CTRL__SOFT_OVERRIDE5_MASK | 1431 SDMA1_CLK_CTRL__SOFT_OVERRIDE4_MASK | 1432 SDMA1_CLK_CTRL__SOFT_OVERRIDE3_MASK | 1433 SDMA1_CLK_CTRL__SOFT_OVERRIDE2_MASK | 1434 SDMA1_CLK_CTRL__SOFT_OVERRIDE1_MASK | 1435 SDMA1_CLK_CTRL__SOFT_OVERRIDE0_MASK); 1436 if (def != data) 1437 WREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_CLK_CTRL), data); 1438 } 1439 } else { 1440 /* disable sdma0 clock gating */ 1441 def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CLK_CTRL)); 1442 data |= (SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK | 1443 SDMA0_CLK_CTRL__SOFT_OVERRIDE6_MASK | 1444 SDMA0_CLK_CTRL__SOFT_OVERRIDE5_MASK | 1445 SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK | 1446 SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK | 1447 SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK | 1448 SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK | 1449 SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK); 1450 1451 if (def != data) 1452 WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CLK_CTRL), data); 1453 1454 if (adev->asic_type == CHIP_VEGA10) { 1455 def = data = RREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_CLK_CTRL)); 1456 data |= (SDMA1_CLK_CTRL__SOFT_OVERRIDE7_MASK | 1457 SDMA1_CLK_CTRL__SOFT_OVERRIDE6_MASK | 1458 SDMA1_CLK_CTRL__SOFT_OVERRIDE5_MASK | 1459 SDMA1_CLK_CTRL__SOFT_OVERRIDE4_MASK | 1460 SDMA1_CLK_CTRL__SOFT_OVERRIDE3_MASK | 1461 SDMA1_CLK_CTRL__SOFT_OVERRIDE2_MASK | 1462 SDMA1_CLK_CTRL__SOFT_OVERRIDE1_MASK | 1463 SDMA1_CLK_CTRL__SOFT_OVERRIDE0_MASK); 1464 if (def != data) 1465 WREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_CLK_CTRL), data); 1466 } 1467 } 1468 } 1469 1470 1471 static void sdma_v4_0_update_medium_grain_light_sleep( 1472 struct amdgpu_device *adev, 1473 bool enable) 1474 { 1475 uint32_t data, def; 1476 1477 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) { 1478 /* 1-not override: enable sdma0 mem light sleep */ 1479 def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL)); 1480 data |= SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK; 1481 if (def != data) 1482 WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL), data); 1483 1484 /* 1-not override: enable sdma1 mem light sleep */ 1485 if (adev->asic_type == CHIP_VEGA10) { 1486 def = data = RREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_POWER_CNTL)); 1487 data |= SDMA1_POWER_CNTL__MEM_POWER_OVERRIDE_MASK; 1488 if (def != data) 1489 WREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_POWER_CNTL), data); 1490 } 1491 } else { 1492 /* 0-override:disable sdma0 mem light sleep */ 1493 def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL)); 1494 data &= ~SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK; 1495 if (def != data) 1496 WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL), data); 1497 1498 /* 0-override:disable sdma1 mem light sleep */ 1499 if (adev->asic_type == CHIP_VEGA10) { 1500 def = data = RREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_POWER_CNTL)); 1501 data &= ~SDMA1_POWER_CNTL__MEM_POWER_OVERRIDE_MASK; 1502 if (def != data) 1503 WREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_POWER_CNTL), data); 1504 } 1505 } 1506 } 1507 1508 static int sdma_v4_0_set_clockgating_state(void *handle, 1509 enum amd_clockgating_state state) 1510 { 1511 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1512 1513 if (amdgpu_sriov_vf(adev)) 1514 return 0; 1515 1516 switch (adev->asic_type) { 1517 case CHIP_VEGA10: 1518 case CHIP_RAVEN: 1519 sdma_v4_0_update_medium_grain_clock_gating(adev, 1520 state == AMD_CG_STATE_GATE ? true : false); 1521 sdma_v4_0_update_medium_grain_light_sleep(adev, 1522 state == AMD_CG_STATE_GATE ? true : false); 1523 break; 1524 default: 1525 break; 1526 } 1527 return 0; 1528 } 1529 1530 static int sdma_v4_0_set_powergating_state(void *handle, 1531 enum amd_powergating_state state) 1532 { 1533 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1534 1535 switch (adev->asic_type) { 1536 case CHIP_RAVEN: 1537 sdma_v4_1_update_power_gating(adev, 1538 state == AMD_PG_STATE_GATE ? true : false); 1539 break; 1540 default: 1541 break; 1542 } 1543 1544 return 0; 1545 } 1546 1547 static void sdma_v4_0_get_clockgating_state(void *handle, u32 *flags) 1548 { 1549 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1550 int data; 1551 1552 if (amdgpu_sriov_vf(adev)) 1553 *flags = 0; 1554 1555 /* AMD_CG_SUPPORT_SDMA_MGCG */ 1556 data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CLK_CTRL)); 1557 if (!(data & SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK)) 1558 *flags |= AMD_CG_SUPPORT_SDMA_MGCG; 1559 1560 /* AMD_CG_SUPPORT_SDMA_LS */ 1561 data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL)); 1562 if (data & SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK) 1563 *flags |= AMD_CG_SUPPORT_SDMA_LS; 1564 } 1565 1566 const struct amd_ip_funcs sdma_v4_0_ip_funcs = { 1567 .name = "sdma_v4_0", 1568 .early_init = sdma_v4_0_early_init, 1569 .late_init = NULL, 1570 .sw_init = sdma_v4_0_sw_init, 1571 .sw_fini = sdma_v4_0_sw_fini, 1572 .hw_init = sdma_v4_0_hw_init, 1573 .hw_fini = sdma_v4_0_hw_fini, 1574 .suspend = sdma_v4_0_suspend, 1575 .resume = sdma_v4_0_resume, 1576 .is_idle = sdma_v4_0_is_idle, 1577 .wait_for_idle = sdma_v4_0_wait_for_idle, 1578 .soft_reset = sdma_v4_0_soft_reset, 1579 .set_clockgating_state = sdma_v4_0_set_clockgating_state, 1580 .set_powergating_state = sdma_v4_0_set_powergating_state, 1581 .get_clockgating_state = sdma_v4_0_get_clockgating_state, 1582 }; 1583 1584 static const struct amdgpu_ring_funcs sdma_v4_0_ring_funcs = { 1585 .type = AMDGPU_RING_TYPE_SDMA, 1586 .align_mask = 0xf, 1587 .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP), 1588 .support_64bit_ptrs = true, 1589 .vmhub = AMDGPU_MMHUB, 1590 .get_rptr = sdma_v4_0_ring_get_rptr, 1591 .get_wptr = sdma_v4_0_ring_get_wptr, 1592 .set_wptr = sdma_v4_0_ring_set_wptr, 1593 .emit_frame_size = 1594 6 + /* sdma_v4_0_ring_emit_hdp_flush */ 1595 3 + /* sdma_v4_0_ring_emit_hdp_invalidate */ 1596 6 + /* sdma_v4_0_ring_emit_pipeline_sync */ 1597 18 + /* sdma_v4_0_ring_emit_vm_flush */ 1598 10 + 10 + 10, /* sdma_v4_0_ring_emit_fence x3 for user fence, vm fence */ 1599 .emit_ib_size = 7 + 6, /* sdma_v4_0_ring_emit_ib */ 1600 .emit_ib = sdma_v4_0_ring_emit_ib, 1601 .emit_fence = sdma_v4_0_ring_emit_fence, 1602 .emit_pipeline_sync = sdma_v4_0_ring_emit_pipeline_sync, 1603 .emit_vm_flush = sdma_v4_0_ring_emit_vm_flush, 1604 .emit_hdp_flush = sdma_v4_0_ring_emit_hdp_flush, 1605 .emit_hdp_invalidate = sdma_v4_0_ring_emit_hdp_invalidate, 1606 .test_ring = sdma_v4_0_ring_test_ring, 1607 .test_ib = sdma_v4_0_ring_test_ib, 1608 .insert_nop = sdma_v4_0_ring_insert_nop, 1609 .pad_ib = sdma_v4_0_ring_pad_ib, 1610 }; 1611 1612 static void sdma_v4_0_set_ring_funcs(struct amdgpu_device *adev) 1613 { 1614 int i; 1615 1616 for (i = 0; i < adev->sdma.num_instances; i++) 1617 adev->sdma.instance[i].ring.funcs = &sdma_v4_0_ring_funcs; 1618 } 1619 1620 static const struct amdgpu_irq_src_funcs sdma_v4_0_trap_irq_funcs = { 1621 .set = sdma_v4_0_set_trap_irq_state, 1622 .process = sdma_v4_0_process_trap_irq, 1623 }; 1624 1625 static const struct amdgpu_irq_src_funcs sdma_v4_0_illegal_inst_irq_funcs = { 1626 .process = sdma_v4_0_process_illegal_inst_irq, 1627 }; 1628 1629 static void sdma_v4_0_set_irq_funcs(struct amdgpu_device *adev) 1630 { 1631 adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST; 1632 adev->sdma.trap_irq.funcs = &sdma_v4_0_trap_irq_funcs; 1633 adev->sdma.illegal_inst_irq.funcs = &sdma_v4_0_illegal_inst_irq_funcs; 1634 } 1635 1636 /** 1637 * sdma_v4_0_emit_copy_buffer - copy buffer using the sDMA engine 1638 * 1639 * @ring: amdgpu_ring structure holding ring information 1640 * @src_offset: src GPU address 1641 * @dst_offset: dst GPU address 1642 * @byte_count: number of bytes to xfer 1643 * 1644 * Copy GPU buffers using the DMA engine (VEGA10). 1645 * Used by the amdgpu ttm implementation to move pages if 1646 * registered as the asic copy callback. 1647 */ 1648 static void sdma_v4_0_emit_copy_buffer(struct amdgpu_ib *ib, 1649 uint64_t src_offset, 1650 uint64_t dst_offset, 1651 uint32_t byte_count) 1652 { 1653 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) | 1654 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR); 1655 ib->ptr[ib->length_dw++] = byte_count - 1; 1656 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ 1657 ib->ptr[ib->length_dw++] = lower_32_bits(src_offset); 1658 ib->ptr[ib->length_dw++] = upper_32_bits(src_offset); 1659 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset); 1660 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset); 1661 } 1662 1663 /** 1664 * sdma_v4_0_emit_fill_buffer - fill buffer using the sDMA engine 1665 * 1666 * @ring: amdgpu_ring structure holding ring information 1667 * @src_data: value to write to buffer 1668 * @dst_offset: dst GPU address 1669 * @byte_count: number of bytes to xfer 1670 * 1671 * Fill GPU buffers using the DMA engine (VEGA10). 1672 */ 1673 static void sdma_v4_0_emit_fill_buffer(struct amdgpu_ib *ib, 1674 uint32_t src_data, 1675 uint64_t dst_offset, 1676 uint32_t byte_count) 1677 { 1678 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL); 1679 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset); 1680 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset); 1681 ib->ptr[ib->length_dw++] = src_data; 1682 ib->ptr[ib->length_dw++] = byte_count - 1; 1683 } 1684 1685 static const struct amdgpu_buffer_funcs sdma_v4_0_buffer_funcs = { 1686 .copy_max_bytes = 0x400000, 1687 .copy_num_dw = 7, 1688 .emit_copy_buffer = sdma_v4_0_emit_copy_buffer, 1689 1690 .fill_max_bytes = 0x400000, 1691 .fill_num_dw = 5, 1692 .emit_fill_buffer = sdma_v4_0_emit_fill_buffer, 1693 }; 1694 1695 static void sdma_v4_0_set_buffer_funcs(struct amdgpu_device *adev) 1696 { 1697 if (adev->mman.buffer_funcs == NULL) { 1698 adev->mman.buffer_funcs = &sdma_v4_0_buffer_funcs; 1699 adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring; 1700 } 1701 } 1702 1703 static const struct amdgpu_vm_pte_funcs sdma_v4_0_vm_pte_funcs = { 1704 .copy_pte_num_dw = 7, 1705 .copy_pte = sdma_v4_0_vm_copy_pte, 1706 1707 .write_pte = sdma_v4_0_vm_write_pte, 1708 1709 .set_max_nums_pte_pde = 0x400000 >> 3, 1710 .set_pte_pde_num_dw = 10, 1711 .set_pte_pde = sdma_v4_0_vm_set_pte_pde, 1712 }; 1713 1714 static void sdma_v4_0_set_vm_pte_funcs(struct amdgpu_device *adev) 1715 { 1716 unsigned i; 1717 1718 if (adev->vm_manager.vm_pte_funcs == NULL) { 1719 adev->vm_manager.vm_pte_funcs = &sdma_v4_0_vm_pte_funcs; 1720 for (i = 0; i < adev->sdma.num_instances; i++) 1721 adev->vm_manager.vm_pte_rings[i] = 1722 &adev->sdma.instance[i].ring; 1723 1724 adev->vm_manager.vm_pte_num_rings = adev->sdma.num_instances; 1725 } 1726 } 1727 1728 const struct amdgpu_ip_block_version sdma_v4_0_ip_block = { 1729 .type = AMD_IP_BLOCK_TYPE_SDMA, 1730 .major = 4, 1731 .minor = 0, 1732 .rev = 0, 1733 .funcs = &sdma_v4_0_ip_funcs, 1734 }; 1735