/* * Copyright 2017 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #ifdef HAVE_ALLOCA_H # include #endif #include "CUnit/Basic.h" #include "amdgpu_test.h" #include "amdgpu_drm.h" #include "amdgpu_internal.h" #include /* * This defines the delay in MS after which memory location designated for * compression against reference value is written to, unblocking command * processor */ #define WRITE_MEM_ADDRESS_DELAY_MS 100 #define PACKET_TYPE3 3 #define PACKET3(op, n) ((PACKET_TYPE3 << 30) | \ (((op) & 0xFF) << 8) | \ ((n) & 0x3FFF) << 16) #define PACKET3_WAIT_REG_MEM 0x3C #define WAIT_REG_MEM_FUNCTION(x) ((x) << 0) /* 0 - always * 1 - < * 2 - <= * 3 - == * 4 - != * 5 - >= * 6 - > */ #define WAIT_REG_MEM_MEM_SPACE(x) ((x) << 4) /* 0 - reg * 1 - mem */ #define WAIT_REG_MEM_OPERATION(x) ((x) << 6) /* 0 - wait_reg_mem * 1 - wr_wait_wr_reg */ #define WAIT_REG_MEM_ENGINE(x) ((x) << 8) /* 0 - me * 1 - pfp */ static amdgpu_device_handle device_handle; static uint32_t major_version; static uint32_t minor_version; static pthread_t stress_thread; static uint32_t *ptr; static void amdgpu_deadlock_helper(unsigned ip_type); static void amdgpu_deadlock_gfx(void); static void amdgpu_deadlock_compute(void); CU_BOOL suite_deadlock_tests_enable(void) { CU_BOOL enable = CU_TRUE; if (amdgpu_device_initialize(drm_amdgpu[0], &major_version, &minor_version, &device_handle)) return CU_FALSE; if (device_handle->info.family_id == AMDGPU_FAMILY_AI || device_handle->info.family_id == AMDGPU_FAMILY_SI) { printf("\n\nCurrently hangs the CP on this ASIC, deadlock suite disabled\n"); enable = CU_FALSE; } if (amdgpu_device_deinitialize(device_handle)) return CU_FALSE; return enable; } int suite_deadlock_tests_init(void) { int r; r = amdgpu_device_initialize(drm_amdgpu[0], &major_version, &minor_version, &device_handle); if (r) { if ((r == -EACCES) && (errno == EACCES)) printf("\n\nError:%s. " "Hint:Try to run this test program as root.", strerror(errno)); return CUE_SINIT_FAILED; } return CUE_SUCCESS; } int suite_deadlock_tests_clean(void) { int r = amdgpu_device_deinitialize(device_handle); if (r == 0) return CUE_SUCCESS; else return CUE_SCLEAN_FAILED; } CU_TestInfo deadlock_tests[] = { { "gfx ring block test", amdgpu_deadlock_gfx }, { "compute ring block test", amdgpu_deadlock_compute }, CU_TEST_INFO_NULL, }; static void *write_mem_address(void *data) { int i; /* useconds_t range is [0, 1,000,000] so use loop for waits > 1s */ for (i = 0; i < WRITE_MEM_ADDRESS_DELAY_MS; i++) usleep(1000); ptr[256] = 0x1; return 0; } static void amdgpu_deadlock_gfx(void) { amdgpu_deadlock_helper(AMDGPU_HW_IP_GFX); } static void amdgpu_deadlock_compute(void) { amdgpu_deadlock_helper(AMDGPU_HW_IP_COMPUTE); } static void amdgpu_deadlock_helper(unsigned ip_type) { amdgpu_context_handle context_handle; amdgpu_bo_handle ib_result_handle; void *ib_result_cpu; uint64_t ib_result_mc_address; struct amdgpu_cs_request ibs_request; struct amdgpu_cs_ib_info ib_info; struct amdgpu_cs_fence fence_status; uint32_t expired; int i, r; amdgpu_bo_list_handle bo_list; amdgpu_va_handle va_handle; r = pthread_create(&stress_thread, NULL, write_mem_address, NULL); CU_ASSERT_EQUAL(r, 0); r = amdgpu_cs_ctx_create(device_handle, &context_handle); CU_ASSERT_EQUAL(r, 0); r = amdgpu_bo_alloc_and_map(device_handle, 4096, 4096, AMDGPU_GEM_DOMAIN_GTT, 0, &ib_result_handle, &ib_result_cpu, &ib_result_mc_address, &va_handle); CU_ASSERT_EQUAL(r, 0); r = amdgpu_get_bo_list(device_handle, ib_result_handle, NULL, &bo_list); CU_ASSERT_EQUAL(r, 0); ptr = ib_result_cpu; ptr[0] = PACKET3(PACKET3_WAIT_REG_MEM, 5); ptr[1] = (WAIT_REG_MEM_MEM_SPACE(1) | /* memory */ WAIT_REG_MEM_FUNCTION(4) | /* != */ WAIT_REG_MEM_ENGINE(0)); /* me */ ptr[2] = (ib_result_mc_address + 256*4) & 0xfffffffc; ptr[3] = ((ib_result_mc_address + 256*4) >> 32) & 0xffffffff; ptr[4] = 0x00000000; /* reference value */ ptr[5] = 0xffffffff; /* and mask */ ptr[6] = 0x00000004; /* poll interval */ for (i = 7; i < 16; ++i) ptr[i] = 0xffff1000; ptr[256] = 0x0; /* the memory we wait on to change */ memset(&ib_info, 0, sizeof(struct amdgpu_cs_ib_info)); ib_info.ib_mc_address = ib_result_mc_address; ib_info.size = 16; memset(&ibs_request, 0, sizeof(struct amdgpu_cs_request)); ibs_request.ip_type = ip_type; ibs_request.ring = 0; ibs_request.number_of_ibs = 1; ibs_request.ibs = &ib_info; ibs_request.resources = bo_list; ibs_request.fence_info.handle = NULL; for (i = 0; i < 200; i++) { r = amdgpu_cs_submit(context_handle, 0,&ibs_request, 1); CU_ASSERT_EQUAL((r == 0 || r == -ECANCELED), 1); } memset(&fence_status, 0, sizeof(struct amdgpu_cs_fence)); fence_status.context = context_handle; fence_status.ip_type = ip_type; fence_status.ip_instance = 0; fence_status.ring = 0; fence_status.fence = ibs_request.seq_no; r = amdgpu_cs_query_fence_status(&fence_status, AMDGPU_TIMEOUT_INFINITE,0, &expired); CU_ASSERT_EQUAL((r == 0 || r == -ECANCELED), 1); pthread_join(stress_thread, NULL); r = amdgpu_bo_list_destroy(bo_list); CU_ASSERT_EQUAL(r, 0); r = amdgpu_bo_unmap_and_free(ib_result_handle, va_handle, ib_result_mc_address, 4096); CU_ASSERT_EQUAL(r, 0); r = amdgpu_cs_ctx_free(context_handle); CU_ASSERT_EQUAL(r, 0); }