tree: git://people.freedesktop.org/~agd5f/linux.git amd-staging-drm-next head: cefd5db37208da458fa10f83f866f2f37eef70e9 commit: 4a33206e976be79b832d5a826565b5cb430de877 [1066/1110] drm/amd/sriov porting sriov cap to vcn3.0 config: parisc-randconfig-r015-20200717 (attached as .config) compiler: hppa-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 4a33206e976be79b832d5a826565b5cb430de877 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc

If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot lkp@intel.com

All warnings (new ones prefixed by >>):

In file included from include/linux/mm.h:94, from include/drm/drm_vma_manager.h:27, from include/drm/drm_gem.h:40, from include/drm/ttm/ttm_bo_api.h:34, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:53, from drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c:25: include/asm-generic/pgtable.h: In function 'pte_clear_not_present_full': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; \ | ^~~~~~~ arch/parisc/include/asm/pgtable.h:322:34: note: in expansion of macro 'set_pte_at' 322 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0)) | ^~~~~~~~~~ include/asm-generic/pgtable.h:201:2: note: in expansion of macro 'pte_clear' 201 | pte_clear(mm, address, ptep); | ^~~~~~~~~ include/asm-generic/pgtable.h: In function '__ptep_modify_prot_commit': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; \ | ^~~~~~~ include/asm-generic/pgtable.h:640:2: note: in expansion of macro 'set_pte_at' 640 | set_pte_at(vma->vm_mm, addr, ptep, pte); | ^~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c: In function 'vcn_v3_0_start_sriov':

...

drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c:1233:3: warning: variable 'direct_poll' set but not used [-Wunused-but-set-variable]

1233 | direct_poll = { {0} }; | ^~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c:25: At top level: drivers/gpu/drm/amd/amdgpu/amdgpu.h:192:19: warning: 'debug_evictions' defined but not used [-Wunused-const-variable=] 192 | static const bool debug_evictions; /* = false */ | ^~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu.h:191:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=] 191 | static const int sched_policy = KFD_SCHED_POLICY_HWS; | ^~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33, from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30, from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:65, from drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c:25: drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=] 76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL }; | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=] 75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL }; | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=] 74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL }; | ^~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=] 73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL }; | ^~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=] 72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL }; | ^~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=] 67 | static const struct fixed31_32 dc_fixpt_zero = { 0 }; | ^~~~~~~~~~~~~

vim +/direct_poll +1233 drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c

1210 1211 static int vcn_v3_0_start_sriov(struct amdgpu_device *adev) 1212 { 1213 int i, j; 1214 struct amdgpu_ring *ring; 1215 uint64_t cache_addr; 1216 uint64_t rb_addr; 1217 uint64_t ctx_addr; 1218 uint32_t param, resp, expected; 1219 uint32_t offset, cache_size; 1220 uint32_t tmp, timeout; 1221 uint32_t id; 1222 1223 struct amdgpu_mm_table *table = &adev->virt.mm_table; 1224 uint32_t *table_loc; 1225 uint32_t table_size; 1226 uint32_t size, size_dw; 1227 1228 struct mmsch_v3_0_cmd_direct_write 1229 direct_wt = { {0} }; 1230 struct mmsch_v3_0_cmd_direct_read_modify_write 1231 direct_rd_mod_wt = { {0} }; 1232 struct mmsch_v3_0_cmd_direct_polling

1233 direct_poll = { {0} };

1234 struct mmsch_v3_0_cmd_end end = { {0} }; 1235 struct mmsch_v3_0_init_header header; 1236 1237 direct_wt.cmd_header.command_type = 1238 MMSCH_COMMAND__DIRECT_REG_WRITE; 1239 direct_rd_mod_wt.cmd_header.command_type = 1240 MMSCH_COMMAND__DIRECT_REG_READ_MODIFY_WRITE; 1241 direct_poll.cmd_header.command_type = 1242 MMSCH_COMMAND__DIRECT_REG_POLLING; 1243 end.cmd_header.command_type = 1244 MMSCH_COMMAND__END; 1245 1246 header.version = MMSCH_VERSION; 1247 header.total_size = sizeof(struct mmsch_v3_0_init_header) >> 2; 1248 for (i = 0; i < AMDGPU_MAX_VCN_INSTANCES; i++) { 1249 header.inst[i].init_status = 0; 1250 header.inst[i].table_offset = 0; 1251 header.inst[i].table_size = 0; 1252 } 1253 1254 table_loc = (uint32_t *)table->cpu_addr; 1255 table_loc += header.total_size; 1256 for (i = 0; i < adev->vcn.num_vcn_inst; i++) { 1257 if (adev->vcn.harvest_config & (1 << i)) 1258 continue; 1259 1260 table_size = 0; 1261 1262 MMSCH_V3_0_INSERT_DIRECT_RD_MOD_WT(SOC15_REG_OFFSET(VCN, i, 1263 mmUVD_STATUS), 1264 ~UVD_STATUS__UVD_BUSY, UVD_STATUS__UVD_BUSY); 1265 1266 cache_size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->size + 4); 1267 1268 if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) { 1269 id = amdgpu_ucode_id_vcns[i]; 1270 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1271 mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW), 1272 adev->firmware.ucode[id].tmr_mc_addr_lo); 1273 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1274 mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH), 1275 adev->firmware.ucode[id].tmr_mc_addr_hi); 1276 offset = 0; 1277 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1278 mmUVD_VCPU_CACHE_OFFSET0), 1279 0); 1280 } else { 1281 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1282 mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW), 1283 lower_32_bits(adev->vcn.inst[i].gpu_addr)); 1284 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1285 mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH), 1286 upper_32_bits(adev->vcn.inst[i].gpu_addr)); 1287 offset = cache_size; 1288 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1289 mmUVD_VCPU_CACHE_OFFSET0), 1290 AMDGPU_UVD_FIRMWARE_OFFSET >> 3); 1291 } 1292 1293 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1294 mmUVD_VCPU_CACHE_SIZE0), 1295 cache_size); 1296 1297 cache_addr = adev->vcn.inst[i].gpu_addr + offset; 1298 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1299 mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW), 1300 lower_32_bits(cache_addr)); 1301 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1302 mmUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH), 1303 upper_32_bits(cache_addr)); 1304 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1305 mmUVD_VCPU_CACHE_OFFSET1), 1306 0); 1307 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1308 mmUVD_VCPU_CACHE_SIZE1), 1309 AMDGPU_VCN_STACK_SIZE); 1310 1311 cache_addr = adev->vcn.inst[i].gpu_addr + offset + 1312 AMDGPU_VCN_STACK_SIZE; 1313 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1314 mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW), 1315 lower_32_bits(cache_addr)); 1316 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1317 mmUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH), 1318 upper_32_bits(cache_addr)); 1319 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1320 mmUVD_VCPU_CACHE_OFFSET2), 1321 0); 1322 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1323 mmUVD_VCPU_CACHE_SIZE2), 1324 AMDGPU_VCN_CONTEXT_SIZE); 1325 1326 for (j = 0; j < adev->vcn.num_enc_rings; ++j) { 1327 ring = &adev->vcn.inst[i].ring_enc[j]; 1328 ring->wptr = 0; 1329 rb_addr = ring->gpu_addr; 1330 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1331 mmUVD_RB_BASE_LO), 1332 lower_32_bits(rb_addr)); 1333 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1334 mmUVD_RB_BASE_HI), 1335 upper_32_bits(rb_addr)); 1336 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1337 mmUVD_RB_SIZE), 1338 ring->ring_size / 4); 1339 } 1340 1341 ring = &adev->vcn.inst[i].ring_dec; 1342 ring->wptr = 0; 1343 rb_addr = ring->gpu_addr; 1344 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1345 mmUVD_LMI_RBC_RB_64BIT_BAR_LOW), 1346 lower_32_bits(rb_addr)); 1347 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1348 mmUVD_LMI_RBC_RB_64BIT_BAR_HIGH), 1349 upper_32_bits(rb_addr)); 1350 /* force RBC into idle state */ 1351 tmp = order_base_2(ring->ring_size); 1352 tmp = REG_SET_FIELD(0, UVD_RBC_RB_CNTL, RB_BUFSZ, tmp); 1353 tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_BLKSZ, 1); 1354 tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_FETCH, 1); 1355 tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_NO_UPDATE, 1); 1356 tmp = REG_SET_FIELD(tmp, UVD_RBC_RB_CNTL, RB_RPTR_WR_EN, 1); 1357 MMSCH_V3_0_INSERT_DIRECT_WT(SOC15_REG_OFFSET(VCN, i, 1358 mmUVD_RBC_RB_CNTL), 1359 tmp); 1360 1361 /* add end packet */ 1362 MMSCH_V3_0_INSERT_END(); 1363 1364 /* refine header */ 1365 header.inst[i].init_status = 1; 1366 header.inst[i].table_offset = header.total_size; 1367 header.inst[i].table_size = table_size; 1368 header.total_size += table_size; 1369 } 1370 1371 /* Update init table header in memory */ 1372 size = sizeof(struct mmsch_v3_0_init_header); 1373 table_loc = (uint32_t *)table->cpu_addr; 1374 memcpy((void *)table_loc, &header, size); 1375 1376 /* message MMSCH (in VCN[0]) to initialize this client 1377 * 1, write to mmsch_vf_ctx_addr_lo/hi register with GPU mc addr 1378 * of memory descriptor location 1379 */ 1380 ctx_addr = table->gpu_addr; 1381 WREG32_SOC15(VCN, 0, mmMMSCH_VF_CTX_ADDR_LO, lower_32_bits(ctx_addr)); 1382 WREG32_SOC15(VCN, 0, mmMMSCH_VF_CTX_ADDR_HI, upper_32_bits(ctx_addr)); 1383 1384 /* 2, update vmid of descriptor */ 1385 tmp = RREG32_SOC15(VCN, 0, mmMMSCH_VF_VMID); 1386 tmp &= ~MMSCH_VF_VMID__VF_CTX_VMID_MASK; 1387 /* use domain0 for MM scheduler */ 1388 tmp |= (0 << MMSCH_VF_VMID__VF_CTX_VMID__SHIFT); 1389 WREG32_SOC15(VCN, 0, mmMMSCH_VF_VMID, tmp); 1390 1391 /* 3, notify mmsch about the size of this descriptor */ 1392 size = header.total_size; 1393 WREG32_SOC15(VCN, 0, mmMMSCH_VF_CTX_SIZE, size); 1394 1395 /* 4, set resp to zero */ 1396 WREG32_SOC15(VCN, 0, mmMMSCH_VF_MAILBOX_RESP, 0); 1397 1398 /* 5, kick off the initialization and wait until 1399 * MMSCH_VF_MAILBOX_RESP becomes non-zero 1400 */ 1401 param = 0x10000001; 1402 WREG32_SOC15(VCN, 0, mmMMSCH_VF_MAILBOX_HOST, param); 1403 tmp = 0; 1404 timeout = 1000; 1405 resp = 0; 1406 expected = param + 1; 1407 while (resp != expected) { 1408 resp = RREG32_SOC15(VCN, 0, mmMMSCH_VF_MAILBOX_RESP); 1409 if (resp == expected) 1410 break; 1411 1412 udelay(10); 1413 tmp = tmp + 10; 1414 if (tmp >= timeout) { 1415 DRM_ERROR("failed to init MMSCH. TIME-OUT after %d usec"\ 1416 " waiting for mmMMSCH_VF_MAILBOX_RESP "\ 1417 "(expected=0x%08x, readback=0x%08x)\n", 1418 tmp, expected, resp); 1419 return -EBUSY; 1420 } 1421 } 1422 1423 return 0; 1424 } 1425

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