lib: add gem_available_aperture_size helper

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/drmtest.c b/lib/drmtest.c
index 8c696b1c..97a44031 100644
--- a/lib/drmtest.c
+++ b/lib/drmtest.c
@@ -588,6 +588,15 @@ void *gem_mmap__cpu(int fd, uint32_t handle, int size, int prot)
 	return (void *)(uintptr_t)mmap_arg.addr_ptr;
 }
 
+uint64_t gem_available_aperture_size(int fd)
+{
+	struct drm_i915_gem_get_aperture aperture;
+
+	aperture.aper_size = 256*1024*1024;
+	do_ioctl(fd, DRM_IOCTL_I915_GEM_GET_APERTURE, &aperture);
+	return aperture.aper_available_size;
+}
+
 uint64_t gem_aperture_size(int fd)
 {
 	struct drm_i915_gem_get_aperture aperture;