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

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 Tony Hutter
parent bce36e21ca
commit 2ca1515374
4 changed files with 27 additions and 22 deletions
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22
module/icp/algs/sha2/sha256_impl.c
View File

@ -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,

19
module/icp/algs/sha2/sha512_impl.c
View File

@ -88,7 +88,7 @@ const sha512_ops_t sha512_avx2_impl = {
};
#endif
#elif defined(__aarch64__)
#elif defined(__aarch64__) || defined(__arm__)
extern void zfs_sha512_block_armv7(uint64_t s[8], const void *, size_t);
const sha512_ops_t sha512_armv7_impl = {
.is_supported = sha2_is_supported,
@ -96,6 +96,7 @@ const sha512_ops_t sha512_armv7_impl = {
.name = "armv7"
};
#if defined(__aarch64__)
static boolean_t sha512_have_armv8ce(void)
{
return (kfpu_allowed() && zfs_sha512_available());
@ -107,15 +108,9 @@ const sha512_ops_t sha512_armv8_impl = {
.transform = tf_sha512_armv8ce,
.name = "armv8-ce"
};
#endif
#elif defined(__arm__) && __ARM_ARCH > 6
extern void zfs_sha512_block_armv7(uint64_t s[8], const void *, size_t);
const sha512_ops_t sha512_armv7_impl = {
.is_supported = sha2_is_supported,
.transform = zfs_sha512_block_armv7,
.name = "armv7"
};
#if defined(__arm__) && __ARM_ARCH > 6
static boolean_t sha512_have_neon(void)
{
return (kfpu_allowed() && zfs_neon_available());
@ -127,6 +122,7 @@ const sha512_ops_t sha512_neon_impl = {
.transform = tf_sha512_neon,
.name = "neon"
};
#endif
#elif defined(__PPC64__)
TF(zfs_sha512_ppc, tf_sha512_ppc);
@ -164,14 +160,15 @@ static const sha512_ops_t *const sha512_impls[] = {
#if defined(__x86_64) && defined(HAVE_AVX2)
&sha512_avx2_impl,
#endif
#if defined(__aarch64__)
#if defined(__aarch64__) || defined(__arm__)
&sha512_armv7_impl,
#if defined(__aarch64__)
&sha512_armv8_impl,
#endif
#if defined(__arm__) && __ARM_ARCH > 6
&sha512_armv7_impl,
&sha512_neon_impl,
#endif
#endif
#if defined(__PPC64__)
&sha512_ppc_impl,
&sha512_power8_impl,

4
module/icp/asm-arm/sha2/sha256-armv7.S
View File

@ -1837,6 +1837,7 @@ zfs_sha256_block_armv7:
#endif
.size zfs_sha256_block_armv7,.-zfs_sha256_block_armv7
#if __ARM_ARCH__ >= 7
.arch armv7-a
.fpu neon
@ -2769,4 +2770,5 @@ zfs_sha256_block_armv8:
bx lr @ bx lr
.size zfs_sha256_block_armv8,.-zfs_sha256_block_armv8
#endif
#endif // #if __ARM_ARCH__ >= 7
#endif // #if defined(__arm__)

4
module/icp/asm-arm/sha2/sha512-armv7.S
View File

@ -493,6 +493,7 @@ zfs_sha512_block_armv7:
#endif
.size zfs_sha512_block_armv7,.-zfs_sha512_block_armv7
#if __ARM_ARCH__ >= 7
.arch armv7-a
.fpu neon
@ -1822,4 +1823,5 @@ zfs_sha512_block_neon:
VFP_ABI_POP
bx lr @ .word 0xe12fff1e
.size zfs_sha512_block_neon,.-zfs_sha512_block_neon
#endif
#endif // #if __ARM_ARCH__ >= 7
#endif // #if defined(__arm__)