[igt-dev] [RFC 1/5] tests/prime_self_import: Swap gtt mapping for cpu

[Chris Wilson]

Quoting Antonio Argenziano (2019-02-21 19:27:41)
> The test uses gtt mapping to check two BOs have the same content, since
> it seems there is no contention on the BOs use cpu mapping to make it
> compatible with platforms that do not have a mappable aperture.
> 
> Signed-off-by: Antonio Argenziano <antonio.argenziano at intel.com>
> ---
>  tests/prime_self_import.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/prime_self_import.c b/tests/prime_self_import.c
> index 8c4f5321..905ffffb 100644
> --- a/tests/prime_self_import.c
> +++ b/tests/prime_self_import.c
> @@ -59,8 +59,8 @@ check_bo(int fd1, uint32_t handle1, int fd2, uint32_t handle2)
>         char *ptr1, *ptr2;
>         int i;
>  
> -       ptr1 = gem_mmap__gtt(fd1, handle1, BO_SIZE, PROT_READ | PROT_WRITE);
> -       ptr2 = gem_mmap__gtt(fd2, handle2, BO_SIZE, PROT_READ | PROT_WRITE);
> +       ptr1 = gem_mmap__cpu(fd1, handle1, 0, BO_SIZE, PROT_READ | PROT_WRITE);
> +       ptr2 = gem_mmap__cpu(fd2, handle2, 0, BO_SIZE, PROT_READ | PROT_WRITE);

set_domain() would be required for pedagogy, mmap__gtt is magic.
-Chris