diff options
| author | Rob Clark <robdclark@chromium.org> | 2022-05-21 11:25:17 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2022-05-31 14:05:10 -0700 |
| commit | 9ce1c981ab12b2036cce6eeaa725e724c8e51668 (patch) | |
| tree | 5ab439dad5effd9469d85c4690c118d4b021a08a /lib | |
| parent | de4c6076a0f38ad3522b08931748f59d59a925ce (diff) | |
lib/igt_debugfs: Drop-caches support for msm
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Petri Latvala <petri.latvala@intel.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/igt_debugfs.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/lib/igt_debugfs.c b/lib/igt_debugfs.c index 7211c410..7e7ccf22 100644 --- a/lib/igt_debugfs.c +++ b/lib/igt_debugfs.c @@ -1139,8 +1139,20 @@ void igt_drop_caches_set(int drm_fd, uint64_t val) int dir; dir = igt_debugfs_dir(drm_fd); - igt_assert(igt_sysfs_printf(dir, "i915_gem_drop_caches", - "0x%" PRIx64, val) > 0); + if (is_i915_device(drm_fd)) { + igt_assert(igt_sysfs_printf(dir, "i915_gem_drop_caches", + "0x%" PRIx64, val) > 0); + } else if (is_msm_device(drm_fd)) { + /* + * msm doesn't currently have debugs that supports fine grained + * control of *what* to drop, just # of objects to scan (equiv + * to shrink_control::nr_to_scan). To meet that limit it will + * first try shrinking, and then dropping idle. So just tell + * it to try and drop as many objects as possible: + */ + igt_assert(igt_sysfs_printf(dir, "shrink", "0x%" PRIx64, + ~(uint64_t)0) > 0); + } close(dir); } |