[Intel-gfx] [PATCH i-g-t] i915: Mark up a few more tests that only target GGTT

[Antonio Argenziano]

On 12/11/19 07:47, Chris Wilson wrote:
> If a test is only targeting the GGTT API and its corner cases, it can
> only run if we have a mappable aperture.
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Antonio Argenziano <antonio.argenziano at intel.com>
> ---
>   lib/i915/gem_mman.c             | 19 +++++++++++++++++++
>   lib/i915/gem_mman.h             |  3 +++
>   tests/i915/gem_gtt_cpu_tlb.c    |  1 +
>   tests/i915/gem_gtt_hog.c        |  1 +
>   tests/i915/gem_gtt_speed.c      |  2 ++
>   tests/i915/gem_mmap_gtt.c       |  5 +----
>   tests/i915/gem_tiled_swapping.c |  1 +
>   7 files changed, 28 insertions(+), 4 deletions(-)
> 
> diff --git a/lib/i915/gem_mman.c b/lib/i915/gem_mman.c
> index 3cf9a6bbd..76d0be82e 100644
> --- a/lib/i915/gem_mman.c
> +++ b/lib/i915/gem_mman.c
> @@ -252,3 +252,22 @@ void *gem_mmap__cpu(int fd, uint32_t handle, uint64_t offset, uint64_t size, uns
>   	igt_assert(ptr);
>   	return ptr;
>   }
> +
> +bool gem_has_ggtt(int i915)

nit: I would put mapping or map or something in the name to make it 
clear that the mapping is not accessible but, your call :).

The patch looks good to me but IGT is quite different than the last time 
I played around with it so:
Acked-by: Antonio Argenziano <antonio.argenziano at intel.com>

> +{
> +	struct drm_i915_gem_mmap_gtt arg = {};
> +	int err;
> +
> +	err = 0;
> +	if (ioctl(i915, DRM_IOCTL_I915_GEM_MMAP_GTT, &arg))
> +		err = errno;
> +	errno = 0;
> +
> +	return errno != ENODEV;
> +}
> +
> +void gem_require_ggtt(int i915)
> +{
> +	igt_require_f(gem_has_ggtt(i915),
> +		      "HW & kernel support for indirect detiling aperture\n");
> +}
> diff --git a/lib/i915/gem_mman.h b/lib/i915/gem_mman.h
> index f7242ed77..67891c8de 100644
> --- a/lib/i915/gem_mman.h
> +++ b/lib/i915/gem_mman.h
> @@ -35,6 +35,9 @@ void *gem_mmap__wc(int fd, uint32_t handle, uint64_t offset, uint64_t size, unsi
>   #define I915_GEM_DOMAIN_WC 0x80
>   #endif
>   
> +bool gem_has_ggtt(int i915);
> +void gem_require_ggtt(int i915);
> +
>   void *__gem_mmap__gtt(int fd, uint32_t handle, uint64_t size, unsigned prot);
>   void *__gem_mmap__cpu(int fd, uint32_t handle, uint64_t offset, uint64_t size, unsigned prot);
>   void *__gem_mmap__wc(int fd, uint32_t handle, uint64_t offset, uint64_t size, unsigned prot);
> diff --git a/tests/i915/gem_gtt_cpu_tlb.c b/tests/i915/gem_gtt_cpu_tlb.c
> index cf3c543df..a4cbb1034 100644
> --- a/tests/i915/gem_gtt_cpu_tlb.c
> +++ b/tests/i915/gem_gtt_cpu_tlb.c
> @@ -79,6 +79,7 @@ igt_simple_main
>   	igt_skip_on_simulation();
>   
>   	fd = drm_open_driver(DRIVER_INTEL);
> +	gem_require_ggtt(fd);
>   
>   	handle = gem_create(fd, OBJ_SIZE);
>   
> diff --git a/tests/i915/gem_gtt_hog.c b/tests/i915/gem_gtt_hog.c
> index ca730649c..7a6273936 100644
> --- a/tests/i915/gem_gtt_hog.c
> +++ b/tests/i915/gem_gtt_hog.c
> @@ -161,6 +161,7 @@ igt_simple_main
>   	/* check for an intel gpu before goint nuts. */
>   	int fd = drm_open_driver(DRIVER_INTEL);
>   	igt_require_gem(fd);
> +	gem_require_ggtt(fd);
>   	close(fd);
>   
>   	igt_skip_on_simulation();
> diff --git a/tests/i915/gem_gtt_speed.c b/tests/i915/gem_gtt_speed.c
> index dfa7216cc..0cdd51dc3 100644
> --- a/tests/i915/gem_gtt_speed.c
> +++ b/tests/i915/gem_gtt_speed.c
> @@ -124,7 +124,9 @@ igt_simple_main_args("s:", NULL, help_str, opt_handler, NULL)
>   
>   	buf = malloc(size);
>   	memset(buf, 0, size);
> +
>   	fd = drm_open_driver(DRIVER_INTEL);
> +	gem_require_ggtt(fd);
>   
>   	handle = gem_create(fd, size);
>   	igt_assert(handle);
> diff --git a/tests/i915/gem_mmap_gtt.c b/tests/i915/gem_mmap_gtt.c
> index ac25f13e2..d31c73ed4 100644
> --- a/tests/i915/gem_mmap_gtt.c
> +++ b/tests/i915/gem_mmap_gtt.c
> @@ -1020,8 +1020,6 @@ igt_main
>   		OBJECT_SIZE = 1 * 1024 * 1024;
>   
>   	igt_fixture {
> -		struct drm_i915_gem_mmap_gtt arg = {};
> -
>   		fd = drm_open_driver(DRIVER_INTEL);
>   
>   		/*
> @@ -1029,8 +1027,7 @@ igt_main
>   		 * detiling access from untrusted userspace to the objects,
>   		 * the kernel does an early rejection of the mmap_gtt ioctl.
>   		 */
> -		igt_require_f(mmap_ioctl(fd, &arg) != -ENODEV,
> -			      "HW & kernel support for indirect detiling aperture\n");
> +		gem_require_ggtt(fd);
>   	}
>   
>   	igt_subtest("bad-object") {
> diff --git a/tests/i915/gem_tiled_swapping.c b/tests/i915/gem_tiled_swapping.c
> index 1b70c1e51..3a95c9469 100644
> --- a/tests/i915/gem_tiled_swapping.c
> +++ b/tests/i915/gem_tiled_swapping.c
> @@ -175,6 +175,7 @@ igt_main
>   		current_tiling_mode = I915_TILING_X;
>   
>   		fd = drm_open_driver(DRIVER_INTEL);
> +		gem_require_ggtt(fd);
>   
>   		intel_purge_vm_caches(fd);
>   		check_memory_layout(fd);
>