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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-01-01 22:07:35 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-01-02 21:21:17 +0000 |
| commit | 9dae9e5381e02846e523507876966fd80fbb2e97 (patch) | |
| tree | 2443d8a87c46481e2beee133526426da4dfdcae2 | |
| parent | c6d4a099a240a8742173f8e02db0ba08ffd37ef1 (diff) | |
| download | linux-9dae9e5381e02846e523507876966fd80fbb2e97.tar.bz2 | |
drm/i915/gem: Single page objects are naturally contiguous
Small objects that only occupy a single page are naturally contiguous,
so mark them as such and allow them the special abilities that come with
it.
A more thorough treatment would extend i915_gem_object_pin_map() to
support discontiguous lmem objects, following the example of
ioremap_prot() and use get_vm_area() + remap_io_sg().
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200101220736.1073007-1-chris@chris-wilson.co.uk
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_region.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_region.c b/drivers/gpu/drm/i915/gem/i915_gem_region.c index d50adac12249..1515384d7e0e 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_region.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_region.c @@ -107,7 +107,10 @@ void i915_gem_object_init_memory_region(struct drm_i915_gem_object *obj, { INIT_LIST_HEAD(&obj->mm.blocks); obj->mm.region = intel_memory_region_get(mem); + obj->flags |= flags; + if (obj->base.size <= mem->min_page_size) + obj->flags |= I915_BO_ALLOC_CONTIGUOUS; mutex_lock(&mem->objects.lock); |