On 09/10/2018 02:04 AM, Christian König wrote:
> Make a VM mapping which is as unaligned as possible.
Is it going to test unaligned address between BO allocation and BO mapping
and skip huge page mapping?
>
> Signed-off-by: Christian König <christian.koenig at amd.com>
> ---
> tests/amdgpu/vm_tests.c | 45 ++++++++++++++++++++++++++++++++++++++++++++-
> 1 file changed, 44 insertions(+), 1 deletion(-)
>
> diff --git a/tests/amdgpu/vm_tests.c b/tests/amdgpu/vm_tests.c
> index 7b6dc5d6..fada2987 100644
> --- a/tests/amdgpu/vm_tests.c
> +++ b/tests/amdgpu/vm_tests.c
> @@ -31,8 +31,8 @@ static amdgpu_device_handle device_handle;
> static uint32_t major_version;
> static uint32_t minor_version;
>
> -
> static void amdgpu_vmid_reserve_test(void);
> +static void amdgpu_vm_unaligned_map(void);
>
> CU_BOOL suite_vm_tests_enable(void)
> {
> @@ -84,6 +84,7 @@ int suite_vm_tests_clean(void)
>
> CU_TestInfo vm_tests[] = {
> { "resere vmid test", amdgpu_vmid_reserve_test },
> + { "unaligned map", amdgpu_vm_unaligned_map },
> CU_TEST_INFO_NULL,
> };
>
> @@ -167,3 +168,45 @@ static void amdgpu_vmid_reserve_test(void)
> r = amdgpu_cs_ctx_free(context_handle);
> CU_ASSERT_EQUAL(r, 0);
> }
> +
> +static void amdgpu_vm_unaligned_map(void)
> +{
> + const uint64_t map_size = (4ULL << 30) - (2 << 12);
> + struct amdgpu_bo_alloc_request request = {};
> + amdgpu_bo_handle buf_handle;
> + amdgpu_va_handle handle;
> + uint64_t vmc_addr;
> + int r;
> +
> + request.alloc_size = 4ULL << 30;
> + request.phys_alignment = 4096;
> + request.preferred_heap = AMDGPU_GEM_DOMAIN_VRAM;
> + request.flags = AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
> +
> + r = amdgpu_bo_alloc(device_handle, &request, &buf_handle);
> + /* Don't let the test fail if the device doesn't have enough VRAM */
We may print some info to the console here.
Regards,
Jerry
> + if (r)
> + return;
> +
> + r = amdgpu_va_range_alloc(device_handle, amdgpu_gpu_va_range_general,
> + 4ULL << 30, 1ULL << 30, 0, &vmc_addr,
> + &handle, 0);
> + CU_ASSERT_EQUAL(r, 0);
> + if (r)
> + goto error_va_alloc;
> +
> + vmc_addr += 1 << 12;
> +
> + r = amdgpu_bo_va_op(buf_handle, 0, map_size, vmc_addr, 0,
> + AMDGPU_VA_OP_MAP);
> + CU_ASSERT_EQUAL(r, 0);
> + if (r)
> + goto error_va_alloc;
> +
> + amdgpu_bo_va_op(buf_handle, 0, map_size, vmc_addr, 0,
> + AMDGPU_VA_OP_UNMAP);
> +
> +error_va_alloc:
> + amdgpu_bo_free(buf_handle);
> +
> +}
>
