amdgpu: add VM test to exercise max/min address space
Make sure the kernel doesn't crash if we map something at the minimum/maximum address. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>main
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89700ab0aa
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b28b823762
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@ -33,6 +33,7 @@ static uint32_t minor_version;
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static void amdgpu_vmid_reserve_test(void);
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static void amdgpu_vm_unaligned_map(void);
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static void amdgpu_vm_mapping_test(void);
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CU_BOOL suite_vm_tests_enable(void)
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{
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@ -85,6 +86,7 @@ int suite_vm_tests_clean(void)
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CU_TestInfo vm_tests[] = {
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{ "resere vmid test", amdgpu_vmid_reserve_test },
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{ "unaligned map", amdgpu_vm_unaligned_map },
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{ "vm mapping test", amdgpu_vm_mapping_test },
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CU_TEST_INFO_NULL,
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};
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@ -208,5 +210,46 @@ static void amdgpu_vm_unaligned_map(void)
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error_va_alloc:
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amdgpu_bo_free(buf_handle);
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}
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static void amdgpu_vm_mapping_test(void)
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{
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struct amdgpu_bo_alloc_request req = {0};
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struct drm_amdgpu_info_device dev_info;
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const uint64_t size = 4096;
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amdgpu_bo_handle buf;
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uint64_t addr;
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int r;
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req.alloc_size = size;
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req.phys_alignment = 0;
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req.preferred_heap = AMDGPU_GEM_DOMAIN_GTT;
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req.flags = 0;
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r = amdgpu_bo_alloc(device_handle, &req, &buf);
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CU_ASSERT_EQUAL(r, 0);
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r = amdgpu_query_info(device_handle, AMDGPU_INFO_DEV_INFO,
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sizeof(dev_info), &dev_info);
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CU_ASSERT_EQUAL(r, 0);
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addr = dev_info.virtual_address_offset;
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r = amdgpu_bo_va_op(buf, 0, size, addr, 0, AMDGPU_VA_OP_MAP);
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CU_ASSERT_EQUAL(r, 0);
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addr = dev_info.virtual_address_max - size;
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r = amdgpu_bo_va_op(buf, 0, size, addr, 0, AMDGPU_VA_OP_MAP);
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CU_ASSERT_EQUAL(r, 0);
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if (dev_info.high_va_offset) {
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addr = dev_info.high_va_offset;
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r = amdgpu_bo_va_op(buf, 0, size, addr, 0, AMDGPU_VA_OP_MAP);
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CU_ASSERT_EQUAL(r, 0);
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addr = dev_info.high_va_max - size;
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r = amdgpu_bo_va_op(buf, 0, size, addr, 0, AMDGPU_VA_OP_MAP);
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CU_ASSERT_EQUAL(r, 0);
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}
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amdgpu_bo_free(buf);
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}
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