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[PATCH v4 07/10] util/bufferiszero: Introduce biz_accel_fn typedef
From: |
Richard Henderson |
Subject: |
[PATCH v4 07/10] util/bufferiszero: Introduce biz_accel_fn typedef |
Date: |
Wed, 14 Feb 2024 22:14:46 -1000 |
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
util/bufferiszero.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/util/bufferiszero.c b/util/bufferiszero.c
index ce04642c67..ce80713071 100644
--- a/util/bufferiszero.c
+++ b/util/bufferiszero.c
@@ -26,7 +26,8 @@
#include "qemu/bswap.h"
#include "host/cpuinfo.h"
-static bool (*buffer_is_zero_accel)(const void *, size_t);
+typedef bool (*biz_accel_fn)(const void *, size_t);
+static biz_accel_fn buffer_is_zero_accel;
static bool buffer_is_zero_int_lt256(const void *buf, size_t len)
{
@@ -179,13 +180,15 @@ buffer_zero_avx2(const void *buf, size_t len)
}
#endif /* CONFIG_AVX2_OPT */
+
+
static unsigned __attribute__((noinline))
select_accel_cpuinfo(unsigned info)
{
/* Array is sorted in order of algorithm preference. */
static const struct {
unsigned bit;
- bool (*fn)(const void *, size_t);
+ biz_accel_fn fn;
} all[] = {
#ifdef CONFIG_AVX2_OPT
{ CPUINFO_AVX2, buffer_zero_avx2 },
@@ -232,7 +235,7 @@ bool test_buffer_is_zero_next_accel(void)
#define INIT_ACCEL buffer_is_zero_int_ge256
#endif
-static bool (*buffer_is_zero_accel)(const void *, size_t) = INIT_ACCEL;
+static biz_accel_fn buffer_is_zero_accel = INIT_ACCEL;
static inline bool buffer_is_zero_sample3(const char *buf, size_t len)
{
--
2.34.1
- [PATCH v4 04/10] util/bufferiszero: Remove useless prefetches, (continued)
[PATCH v4 01/10] util/bufferiszero: Remove SSE4.1 variant, Richard Henderson, 2024/02/15
[PATCH v4 02/10] util/bufferiszero: Remove AVX512 variant, Richard Henderson, 2024/02/15
[PATCH v4 05/10] util/bufferiszero: Optimize SSE2 and AVX2 variants, Richard Henderson, 2024/02/15
[PATCH v4 06/10] util/bufferiszero: Improve scalar variant, Richard Henderson, 2024/02/15
[PATCH v4 07/10] util/bufferiszero: Introduce biz_accel_fn typedef,
Richard Henderson <=
[PATCH v4 08/10] util/bufferiszero: Simplify test_buffer_is_zero_next_accel, Richard Henderson, 2024/02/15
[RFC PATCH v4 10/10] util/bufferiszero: Add sve acceleration for aarch64, Richard Henderson, 2024/02/15
Re: [PATCH v4 00/10] Optimize buffer_is_zero, Alexander Monakov, 2024/02/15