[Intel-gfx] [PATCH 3/3] drm/i915/gtt: ignore min_page_size for paging structures

Matthew Auld matthew.auld at intel.com
Wed Jun 23 11:26:37 UTC 2021


The min_page_size is only needed for pages inserted into the GTT, and
for our paging structures we only need at most 4K bytes, so simply
ignore the min_page_size restrictions here, otherwise we might see some
severe overallocation on some devices.

Signed-off-by: Matthew Auld <matthew.auld at intel.com>
Cc: Thomas Hellström <thomas.hellstrom at linux.intel.com>
---
 drivers/gpu/drm/i915/gt/intel_gtt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.c b/drivers/gpu/drm/i915/gt/intel_gtt.c
index 084ea65d59c0..61e8a8c25374 100644
--- a/drivers/gpu/drm/i915/gt/intel_gtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gtt.c
@@ -16,7 +16,7 @@ struct drm_i915_gem_object *alloc_pt_lmem(struct i915_address_space *vm, int sz)
 {
 	struct drm_i915_gem_object *obj;
 
-	obj = i915_gem_object_create_lmem(vm->i915, sz, 0);
+	obj = __i915_gem_object_create_lmem_with_ps(vm->i915, sz, sz, 0);
 	/*
 	 * Ensure all paging structures for this vm share the same dma-resv
 	 * object underneath, with the idea that one object_lock() will lock
-- 
2.26.3



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