On 24 November 2016 at 15:43, Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> wrote:
> This is a straight transliteration of the Intel algorithm implemented
> using SSE and PCLMULQDQ instructions that resides under in the file
> arch/x86/crypto/crct10dif-pcl-asm_64.S.
>
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
> ---
> arch/arm/crypto/Kconfig | 5 +
> arch/arm/crypto/Makefile | 2 +
> arch/{arm64 => arm}/crypto/crct10dif-ce-core.S | 457 +++++++++++---------
> arch/{arm64 => arm}/crypto/crct10dif-ce-glue.c | 23 +-
> 4 files changed, 277 insertions(+), 210 deletions(-)
>
This patch needs the following hunk folded in to avoid breaking the
Thumb2 build:
"""
diff --git a/arch/arm/crypto/crct10dif-ce-core.S
b/arch/arm/crypto/crct10dif-ce-core.S
index 30168b0f8581..4fdbca94dd0c 100644
--- a/arch/arm/crypto/crct10dif-ce-core.S
+++ b/arch/arm/crypto/crct10dif-ce-core.S
@@ -152,7 +152,8 @@ CPU_LE( vrev64.8 q7, q7 )
// XOR the initial_crc value
veor.8 q0, q0, q10
- adrl ip, rk3
+ARM( adrl ip, rk3 )
+THUMB( adr ip, rk3 )
vld1.64 {q10}, [ip] // xmm10 has rk3 and rk4
// type of pmull instruction
// will determine which constant to use
"""
Updated patch(es) can be found here
https://git.kernel.org/cgit/linux/kernel/git/ardb/linux.git/log/?h=arm-crct10dif
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