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module/icp/asm-arm/sha2: enable non-SIMD asm kernels on armv5/6

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My merged pull request #15557 fixes compilation of sha2 kernels on arm
v5/6. However, the compiler guards only allows sha256/512_armv7_impl to
be used when __ARM_ARCH > 6. This patch enables these ASM kernels on all
arm architectures. Some compiler guards are adjusted accordingly to
avoid the unnecessary compilation of SIMD (e.g., neon, armv8ce) kernels
on old architectures.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Shengqi Chen <harry-chen@outlook.com>
Closes #15623
This commit is contained in:
Shengqi Chen
2023-12-06 04:01:09 +08:00
committed by GitHub
parent 5f2700eee5
commit 727497ccdf
4 changed files with 27 additions and 26 deletions
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module/icp/algs/sha2/sha256_impl.c
+13 -9
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@@ -118,7 +118,15 @@ const sha256_ops_t sha256_shani_impl = {
};
#endif
#elif defined(__aarch64__) || (defined(__arm__) && __ARM_ARCH > 6)
#elif defined(__aarch64__) || defined(__arm__)
extern void zfs_sha256_block_armv7(uint32_t s[8], const void *, size_t);
const sha256_ops_t sha256_armv7_impl = {
.is_supported = sha2_is_supported,
.transform = zfs_sha256_block_armv7,
.name = "armv7"
};
#if __ARM_ARCH > 6
static boolean_t sha256_have_neon(void)
{
return (kfpu_allowed() && zfs_neon_available());
@@ -129,13 +137,6 @@ static boolean_t sha256_have_armv8ce(void)
return (kfpu_allowed() && zfs_sha256_available());
}
extern void zfs_sha256_block_armv7(uint32_t s[8], const void *, size_t);
const sha256_ops_t sha256_armv7_impl = {
.is_supported = sha2_is_supported,
.transform = zfs_sha256_block_armv7,
.name = "armv7"
};
TF(zfs_sha256_block_neon, tf_sha256_neon);
const sha256_ops_t sha256_neon_impl = {
.is_supported = sha256_have_neon,
@@ -149,6 +150,7 @@ const sha256_ops_t sha256_armv8_impl = {
.transform = tf_sha256_armv8ce,
.name = "armv8-ce"
};
#endif
#elif defined(__PPC64__)
static boolean_t sha256_have_isa207(void)
@@ -192,11 +194,13 @@ static const sha256_ops_t *const sha256_impls[] = {
#if defined(__x86_64) && defined(HAVE_SSE4_1)
&sha256_shani_impl,
#endif
#if defined(__aarch64__) || (defined(__arm__) && __ARM_ARCH > 6)
#if defined(__aarch64__) || defined(__arm__)
&sha256_armv7_impl,
#if __ARM_ARCH > 6
&sha256_neon_impl,
&sha256_armv8_impl,
#endif
#endif
#if defined(__PPC64__)
&sha256_ppc_impl,
&sha256_power8_impl,