diff options
author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-02-05 18:35:21 +0000 |
---|---|---|
committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-02-18 10:30:56 +0000 |
commit | 391b32c3822993a6dd5874d2898b0c16b8eb9d03 (patch) | |
tree | 630469f4b2578ef87f085fdab6dc1b75f6b69138 /lib | |
parent | e85c530eab9ef20b2708ff36bfc6f6fa3990e1f4 (diff) |
igt: Report the global GTT size
For many tests, the relevant aperture is not the ppGTT but the internal
global GTT managed by the kernel. Use this limit appropriately.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'lib')
-rw-r--r-- | lib/ioctl_wrappers.c | 38 | ||||
-rw-r--r-- | lib/ioctl_wrappers.h | 2 |
2 files changed, 20 insertions, 20 deletions
diff --git a/lib/ioctl_wrappers.c b/lib/ioctl_wrappers.c index 8c7e939d..a222e1b0 100644 --- a/lib/ioctl_wrappers.c +++ b/lib/ioctl_wrappers.c @@ -1226,25 +1226,6 @@ bool gem_has_bsd2(int fd) has_bsd2 = gem_has_enable_ring(fd,LOCAL_I915_PARAM_HAS_BSD2); return has_bsd2; } -/** - * gem_available_aperture_size: - * @fd: open i915 drm file descriptor - * - * Feature test macro to query the kernel for the available gpu aperture size - * usable in a batchbuffer. - * - * Returns: The available gtt address space size. - */ -uint64_t gem_available_aperture_size(int fd) -{ - struct drm_i915_gem_get_aperture aperture; - - memset(&aperture, 0, sizeof(aperture)); - aperture.aper_size = 256*1024*1024; - do_ioctl(fd, DRM_IOCTL_I915_GEM_GET_APERTURE, &aperture); - - return aperture.aper_available_size; -} /** * gem_aperture_size: @@ -1300,6 +1281,25 @@ uint64_t gem_mappable_aperture_size(void) return pci_dev->regions[bar].size; } +/** + * gem_global_aperture_size: + * + * Feature test macro to query the kernel for the global gpu aperture size. + * This is the area available for the kernel to perform address translations. + * + * Returns: The mappable gtt address space size. + */ +uint64_t gem_global_aperture_size(int fd) +{ + struct drm_i915_gem_get_aperture aperture; + + memset(&aperture, 0, sizeof(aperture)); + aperture.aper_size = 256*1024*1024; + do_ioctl(fd, DRM_IOCTL_I915_GEM_GET_APERTURE, &aperture); + + return aperture.aper_size; +} + #define LOCAL_I915_PARAM_HAS_EXEC_SOFTPIN 37 /** * gem_has_softpin: diff --git a/lib/ioctl_wrappers.h b/lib/ioctl_wrappers.h index 200b2dab..691dc013 100644 --- a/lib/ioctl_wrappers.h +++ b/lib/ioctl_wrappers.h @@ -143,8 +143,8 @@ int gem_gtt_type(int fd); bool gem_uses_ppgtt(int fd); bool gem_uses_full_ppgtt(int fd); int gem_available_fences(int fd); -uint64_t gem_available_aperture_size(int fd); uint64_t gem_aperture_size(int fd); +uint64_t gem_global_aperture_size(int fd); uint64_t gem_mappable_aperture_size(void); bool gem_has_softpin(int fd); |