diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-10-19 14:07:25 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-10-19 16:15:07 +0100 |
| commit | e27626898b87a1602e6af6f7effcacf772ead491 (patch) | |
| tree | 506e8b40ded5291e4f8a8207038a778dd14572fb /lib/igt_sysfs.c | |
| parent | 27d30707410c4a89480effa75bb6792331ca3342 (diff) | |
igt: Check the physical swizzle status
The kernel tries to hide L-shaped memory with asymmetric swizzling from
userspace by reporting lies through the get-tiling interface. Check for
these lies by comparing the reported swizzle with the actual swizzle,
and only run swizzling tests where we know the underlying physical
swizzling.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'lib/igt_sysfs.c')
| -rw-r--r-- | lib/igt_sysfs.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/igt_sysfs.c b/lib/igt_sysfs.c index 612de751..c19821da 100644 --- a/lib/igt_sysfs.c +++ b/lib/igt_sysfs.c @@ -148,7 +148,8 @@ int igt_sysfs_open_parameters(int device) if (dir < 0) return -1; - params = openat(dir, "device/driver/module/parameters", O_RDONLY); + params = -1; + //params = openat(dir, "device/driver/module/parameters", O_RDONLY); close(dir); if (params < 0) { /* builtin? */ |