[igt-dev] [PATCH i-g-t 4/9] tests/prime_mmap: use device coherent mapping instead of mmap_gtt

Ramalingam C
2020-01-31T17:31:18Z

Since on new discrete GPUs we dont have the mappable aperture, if that
is acceptable for the test purpose, we should use GEM_MMAP_OFFSET.
Hence using gem_mmap_device_coherent() which wraps the mmap options in
the order of gem_mmap_offset / gem_mmap / mmap_gtt

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
---
tests/prime_mmap.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/prime_mmap.c b/tests/prime_mmap.c
index fc985784407b..1433424109c8 100644
--- a/tests/prime_mmap.c
+++ b/tests/prime_mmap.c
@@ -85,8 +85,8 @@ test_correct(void)
dma_buf_fd = prime_handle_to_fd(fd, handle);
igt_assert(errno == 0);

- /* Check correctness vs GEM_MMAP_GTT */
- ptr1 = gem_mmap__gtt(fd, handle, BO_SIZE, PROT_READ);
+ /* Check correctness vs GEM_MMAP */
+ ptr1 = gem_mmap__device_coherent(fd, handle, 0, BO_SIZE, PROT_READ);
ptr2 = mmap(NULL, BO_SIZE, PROT_READ, MAP_SHARED, dma_buf_fd, 0);
igt_assert(ptr1 != MAP_FAILED);
igt_assert(ptr2 != MAP_FAILED);
--
2.20.1