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anv: Add an align_down_u32 helper

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Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3777>
This commit is contained in:
Jason Ekstrand 2020-02-07 04:33:19 -06:00 • committed by Marge Bot
parent 61ac8cf083
commit faea84e254
2 changed files with 9 additions and 2 deletions
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2
src/intel/vulkan/anv_nir_compute_push_layout.c
View file

@ -74,7 +74,7 @@ anv_nir_compute_push_layout(const struct anv_physical_device *pdevice,
* push_end (no push constants is indicated by push_start = UINT_MAX).
*/
push_start = MIN2(push_start, push_end);
push_start &= ~31u;
push_start = align_down_u32(push_start, 32);
if (has_push_intrinsic) {
nir_foreach_function(function, nir) {

9
src/intel/vulkan/anv_private.h
View file

@ -231,11 +231,18 @@ align_down_npot_u32(uint32_t v, uint32_t a)
return v - (v % a);
}
static inline uint32_t
align_down_u32(uint32_t v, uint32_t a)
{
assert(a != 0 && a == (a & -a));
return v & ~(a - 1);
}
static inline uint32_t
align_u32(uint32_t v, uint32_t a)
{
assert(a != 0 && a == (a & -a));
return (v + a - 1) & ~(a - 1);
return align_down_u32(v + a - 1, a);
}
static inline uint64_t