diff options
| author |   Robert Beckett <bob.beckett@collabora.com> | 2021-12-10 19:50:05 +0000 |
|---|---|---|
| committer |   Matthew Auld <matthew.auld@intel.com> | 2021-12-14 14:40:10 +0000 |
| commit | 5719d4fee1caed83979b21ad4cf34d46abf97514 (patch) | |
| tree | 9ff18d3b9e3f98853de632ac162a8d993c7987ee /drivers | |
| parent | drm/i915: Test all device memory on probing (diff) | |
| download | linux-dev-5719d4fee1caed83979b21ad4cf34d46abf97514.tar.xz linux-dev-5719d4fee1caed83979b21ad4cf34d46abf97514.zip | |
drm/i915/ttm: fix large buffer population trucation
ttm->num_pages is uint32_t which was causing very large buffers to
only populate a truncated size.
This fixes gem_create@create-clear igt test on large memory systems.
Fixes: 7ae034590cea ("drm/i915/ttm: add tt shmem backend")
Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211210195005.2582884-1-bob.beckett@collabora.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c index 218a9b3037c7..923cc7ad8d70 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c @@ -166,7 +166,7 @@ static int i915_ttm_tt_shmem_populate(struct ttm_device *bdev, struct intel_memory_region *mr = i915->mm.regions[INTEL_MEMORY_SYSTEM]; struct i915_ttm_tt *i915_tt = container_of(ttm, typeof(*i915_tt), ttm); const unsigned int max_segment = i915_sg_segment_size(); - const size_t size = ttm->num_pages << PAGE_SHIFT; + const size_t size = (size_t)ttm->num_pages << PAGE_SHIFT; struct file *filp = i915_tt->filp; struct sgt_iter sgt_iter; struct sg_table *st; |