diff options
| -rw-r--r-- | src/intel/vulkan/anv_allocator.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/intel/vulkan/anv_allocator.c b/src/intel/vulkan/anv_allocator.c index d7c0910..385c63f 100644 --- a/src/intel/vulkan/anv_allocator.c +++ b/src/intel/vulkan/anv_allocator.c @@ -200,7 +200,6 @@ anv_free_list_push(union anv_free_list *list, void *map, int32_t offset) #define PFL_COUNT(x) ((uintptr_t)(x) & 0xfff) #define PFL_PTR(x) ((void *)((uintptr_t)(x) & ~0xfff)) #define PFL_PACK(ptr, count) ({ \ - assert(((uintptr_t)(ptr) & 0xfff) == 0); \ (void *)((uintptr_t)(ptr) | (uintptr_t)((count) & 0xfff)); \ }) @@ -230,6 +229,12 @@ anv_ptr_free_list_push(void **list, void *elem) void *old, *current; void **next_ptr = elem; + /* The pointer-based free list requires that the pointer be + * page-aligned. This is because we use the bottom 12 bits of the + * pointer to store a counter to solve the ABA concurrency problem. + */ + assert(((uintptr_t)elem & 0xfff) == 0); + old = *list; do { current = old; |