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author | Chris Wilson <chris@chris-wilson.co.uk> | 2018-07-03 14:53:31 +0100 |
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committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-07-03 22:09:22 +0100 |
commit | 1f6f00238abf2bfa46f4d2c44cfc7512566f3685 (patch) | |
tree | 1e6cb80e9554453e2d22b0218b7b1f1136f178f7 /drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | |
parent | 38b7fb0b2ad1f2ba83bf9a8535cedb198a448ea4 (diff) | |
download | linux-1f6f00238abf2bfa46f4d2c44cfc7512566f3685.tar.bz2 |
drm/i915/selftests: Drop struct_mutex around lowlevel pggtt allocation
For a ppgtt that we are constructing, there is no struct_mutex
dependence so skip it. In the process, also ping the scheduler
frequently to try and avoid the NMI watchdog.
v2: gen6 requires struct_mutex to clean up (currently)
Suggested-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
References: https://bugs.freedesktop.org/show_bug.cgi?id=107094
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180703135331.12265-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/selftests/i915_gem_gtt.c')
-rw-r--r-- | drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c index 9578652fba24..a7956ecc3e1f 100644 --- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c @@ -156,12 +156,9 @@ static int igt_ppgtt_alloc(void *arg) if (!USES_PPGTT(dev_priv)) return 0; - mutex_lock(&dev_priv->drm.struct_mutex); ppgtt = __hw_ppgtt_create(dev_priv); - if (IS_ERR(ppgtt)) { - err = PTR_ERR(ppgtt); - goto err_unlock; - } + if (IS_ERR(ppgtt)) + return PTR_ERR(ppgtt); if (!ppgtt->vm.allocate_va_range) goto err_ppgtt_cleanup; @@ -180,6 +177,8 @@ static int igt_ppgtt_alloc(void *arg) goto err_ppgtt_cleanup; } + cond_resched(); + ppgtt->vm.clear_range(&ppgtt->vm, 0, size); } @@ -197,13 +196,15 @@ static int igt_ppgtt_alloc(void *arg) } goto err_ppgtt_cleanup; } + + cond_resched(); } err_ppgtt_cleanup: + mutex_lock(&dev_priv->drm.struct_mutex); ppgtt->vm.cleanup(&ppgtt->vm); - kfree(ppgtt); -err_unlock: mutex_unlock(&dev_priv->drm.struct_mutex); + kfree(ppgtt); return err; } |