korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2025-01-10 15:54:39 +08:00
Code Issues Packages Projects Releases Wiki Activity

drm/i915/selftests: Tweak the tolerance for clock ticks to 12.5%

Browse Source 
Give a small bump for our tolerance on comparing the expected vs
measured clock ticks/time from 10% to 12.5% to accommodate a bad result
on Sandybridge that was off by 10.3%. Hopefully, that is the worst we
will see.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/1802
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200428114307.5153-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2020-04-28 12:43:07 +01:00
parent d631461d5c
commit 96a4faf524
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/i915/gt/selftest_rps.c
View File

@ -312,15 +312,15 @@ int live_rps_clock_interval(void *arg)
engine->name, cycles, time, ktime_to_ns(dt), expected,
gt->clock_frequency / 1000);
if (10 * time < 9 * ktime_to_ns(dt) ||
10 * time > 11 * ktime_to_ns(dt)) {
if (10 * time < 8 * ktime_to_ns(dt) ||
8 * time > 10 * ktime_to_ns(dt)) {
pr_err("%s: rps clock time does not match walltime!\n",
engine->name);
err = -EINVAL;
}
if (10 * expected < 9 * cycles ||
10 * expected > 11 * cycles) {
if (10 * expected < 8 * cycles ||
8 * expected > 10 * cycles) {
pr_err("%s: walltime does not match rps clock ticks!\n",
engine->name);
err = -EINVAL;