diff options
Diffstat (limited to 'drivers/gpu/drm/i915/selftests/i915_gem.c')
| -rw-r--r-- | drivers/gpu/drm/i915/selftests/i915_gem.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem.c b/drivers/gpu/drm/i915/selftests/i915_gem.c index 0727492576be..ad650f67114a 100644 --- a/drivers/gpu/drm/i915/selftests/i915_gem.c +++ b/drivers/gpu/drm/i915/selftests/i915_gem.c @@ -45,13 +45,15 @@ static void trash_stolen(struct drm_i915_private *i915) struct i915_ggtt *ggtt = to_gt(i915)->ggtt; const u64 slot = ggtt->error_capture.start; const resource_size_t size = resource_size(&i915->dsm.stolen); + struct rnd_state prng; unsigned long page; - u32 prng = 0x12345678; /* XXX: fsck. needs some more thought... */ if (!i915_ggtt_has_aperture(ggtt)) return; + prandom_seed_state(&prng, 0x12345678); + for (page = 0; page < size; page += PAGE_SIZE) { const dma_addr_t dma = i915->dsm.stolen.start + page; u32 __iomem *s; @@ -64,8 +66,7 @@ static void trash_stolen(struct drm_i915_private *i915) s = io_mapping_map_atomic_wc(&ggtt->iomap, slot); for (x = 0; x < PAGE_SIZE / sizeof(u32); x++) { - prng = next_pseudo_random32(prng); - iowrite32(prng, &s[x]); + iowrite32(prandom_u32_state(&prng), &s[x]); } io_mapping_unmap_atomic(s); } @@ -80,7 +81,7 @@ static void simulate_hibernate(struct drm_i915_private *i915) wakeref = intel_runtime_pm_get(&i915->runtime_pm); /* - * As a final sting in the tail, invalidate stolen. Under a real S4, + * As a final string in the tail, invalidate stolen. Under a real S4, * stolen is lost and needs to be refilled on resume. However, under * CI we merely do S4-device testing (as full S4 is too unreliable * for automated testing across a cluster), so to simulate the effect |