From: Andrey Grodzovsky Date: Wed, 26 May 2021 19:15:33 +0000 (-0400) Subject: test/amdgpu/hotunplug: Add test suite for GPU unplug X-Git-Tag: libdrm-2.4.107~15 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d4b780a73554a6c431110cbdf8644a33cd2443ac;p=platform%2Fupstream%2Flibdrm.git test/amdgpu/hotunplug: Add test suite for GPU unplug Add plug/unplug device and open/close device file infrastructure. Add basic test - unplug device while device file still open. Close device file afterwards and replug the device. Signed-off-by: Andrey Grodzovsky Reviewed-by: Alex Deucher alexander.deucher@amd.com --- diff --git a/tests/amdgpu/amdgpu_test.c b/tests/amdgpu/amdgpu_test.c index 7c35d9a..6e0d369 100644 --- a/tests/amdgpu/amdgpu_test.c +++ b/tests/amdgpu/amdgpu_test.c @@ -66,6 +66,7 @@ #define RAS_TESTS_STR "RAS Tests" #define SYNCOBJ_TIMELINE_TESTS_STR "SYNCOBJ TIMELINE Tests" #define SECURITY_TESTS_STR "Security Tests" +#define HOTUNPLUG_TESTS_STR "Hotunplug Tests" /** * Open handles for amdgpu devices @@ -144,6 +145,12 @@ static CU_SuiteInfo suites[] = { .pCleanupFunc = suite_security_tests_clean, .pTests = security_tests, }, + { + .pName = HOTUNPLUG_TESTS_STR, + .pInitFunc = suite_hotunplug_tests_init, + .pCleanupFunc = suite_hotunplug_tests_clean, + .pTests = hotunplug_tests, + }, CU_SUITE_INFO_NULL, }; @@ -205,6 +212,10 @@ static Suites_Active_Status suites_active_stat[] = { .pName = SECURITY_TESTS_STR, .pActive = suite_security_tests_enable, }, + { + .pName = HOTUNPLUG_TESTS_STR, + .pActive = suite_hotunplug_tests_enable, + }, }; diff --git a/tests/amdgpu/amdgpu_test.h b/tests/amdgpu/amdgpu_test.h index 9e4515c..cc12756 100644 --- a/tests/amdgpu/amdgpu_test.h +++ b/tests/amdgpu/amdgpu_test.h @@ -273,6 +273,29 @@ amdgpu_command_submission_write_linear_helper_with_secure(amdgpu_device_handle unsigned ip_type, bool secure); + + +/** + * Initialize hotunplug test suite + */ +int suite_hotunplug_tests_init(); + +/** + * Deinitialize hotunplug test suite + */ +int suite_hotunplug_tests_clean(); + +/** + * Decide if the suite is enabled by default or not. + */ +CU_BOOL suite_hotunplug_tests_enable(void); + +/** + * Tests in uvd enc test suite + */ +extern CU_TestInfo hotunplug_tests[]; + + /** * Helper functions */ diff --git a/tests/amdgpu/hotunplug_tests.c b/tests/amdgpu/hotunplug_tests.c new file mode 100644 index 0000000..9985499 --- /dev/null +++ b/tests/amdgpu/hotunplug_tests.c @@ -0,0 +1,191 @@ +/* + * Copyright 2021 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. + * +*/ + +#include +#include +#include +#include +#include +#if HAVE_ALLOCA_H +# include +#endif + +#include "CUnit/Basic.h" + +#include "amdgpu_test.h" +#include "amdgpu_drm.h" +#include "amdgpu_internal.h" +#include "xf86drm.h" +#include + + +static amdgpu_device_handle device_handle; +static uint32_t major_version; +static uint32_t minor_version; +static char *sysfs_remove = NULL; + +CU_BOOL suite_hotunplug_tests_enable(void) +{ + CU_BOOL enable = CU_TRUE; + drmDevicePtr device; + + if (drmGetDevice2(drm_amdgpu[0], DRM_DEVICE_GET_PCI_REVISION, &device)) { + printf("\n\nGPU Failed to get DRM device PCI info!\n"); + return CU_FALSE; + } + + if (device->bustype != DRM_BUS_PCI) { + printf("\n\nGPU device is not on PCI bus!\n"); + amdgpu_device_deinitialize(device_handle); + return CU_FALSE; + } + + /* Disable until the hot-unplug support in kernel gets into drm-next */ + if (major_version < 0xff) + enable = false; + + if (amdgpu_device_initialize(drm_amdgpu[0], &major_version, + &minor_version, &device_handle)) + return CU_FALSE; + + /* TODO Once DRM version for unplug feature ready compare here agains it*/ + + if (amdgpu_device_deinitialize(device_handle)) + return CU_FALSE; + + return enable; +} + +int suite_hotunplug_tests_init(void) +{ + /* We need to open/close device at each test manually */ + amdgpu_close_devices(); + + return CUE_SUCCESS; +} + +int suite_hotunplug_tests_clean(void) +{ + + + return CUE_SUCCESS; +} + +static int amdgpu_hotunplug_trigger(const char *pathname) +{ + int fd, len; + + fd = open(pathname, O_WRONLY); + if (fd < 0) + return -errno; + + len = write(fd, "1", 1); + close(fd); + + return len; +} + +static int amdgpu_hotunplug_setup_test() +{ + int r; + char *tmp_str; + + if (amdgpu_open_device_on_test_index(open_render_node) <= 0) { + printf("\n\n Failed to reopen device file!\n"); + return CUE_SINIT_FAILED; + + + + } + + 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; + } + + tmp_str = amdgpu_get_device_from_fd(drm_amdgpu[0]); + if (!tmp_str){ + printf("\n\n Device path not found!\n"); + return CUE_SINIT_FAILED; + } + + sysfs_remove = realloc(tmp_str, strlen(tmp_str) * 2); + strcat(sysfs_remove, "/remove"); + + return 0; + +} + +static int amdgpu_hotunplug_teardown_test() +{ + if (amdgpu_device_deinitialize(device_handle)) + return CUE_SCLEAN_FAILED; + + amdgpu_close_devices(); + + if (sysfs_remove) + free(sysfs_remove); + + return 0; +} + +static inline int amdgpu_hotunplug_remove() +{ + return amdgpu_hotunplug_trigger(sysfs_remove); +} + +static inline int amdgpu_hotunplug_rescan() +{ + return amdgpu_hotunplug_trigger("/sys/bus/pci/rescan"); +} + + +static void amdgpu_hotunplug_simple(void) +{ + int r; + + r = amdgpu_hotunplug_setup_test(); + CU_ASSERT_EQUAL(r , 0); + + r = amdgpu_hotunplug_remove(); + CU_ASSERT_EQUAL(r > 0, 1); + + r = amdgpu_hotunplug_teardown_test(); + CU_ASSERT_EQUAL(r , 0); + + r = amdgpu_hotunplug_rescan(); + CU_ASSERT_EQUAL(r > 0, 1); +} + +CU_TestInfo hotunplug_tests[] = { + { "Unplug card and rescan the bus to plug it back", amdgpu_hotunplug_simple }, + CU_TEST_INFO_NULL, +}; + + diff --git a/tests/amdgpu/meson.build b/tests/amdgpu/meson.build index eb16a50..e6e3081 100644 --- a/tests/amdgpu/meson.build +++ b/tests/amdgpu/meson.build @@ -25,6 +25,7 @@ if dep_cunit.found() 'amdgpu_test.c', 'basic_tests.c', 'bo_tests.c', 'cs_tests.c', 'vce_tests.c', 'uvd_enc_tests.c', 'vcn_tests.c', 'deadlock_tests.c', 'vm_tests.c', 'ras_tests.c', 'syncobj_tests.c', 'security_tests.c', + 'hotunplug_tests.c' ), dependencies : [dep_cunit, dep_threads, dep_atomic_ops], include_directories : [inc_root, inc_drm, include_directories('../../amdgpu')],