From fb87127bcefc17efab757606e1b1e333fd614dd0 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Fri, 19 Jan 2018 12:04:40 +0000 Subject: crypto: arm64/sha512 - fix/improve new v8.2 Crypto Extensions code Add a missing symbol export that prevents this code to be built as a module. Also, move the round constant table to the .rodata section, and use a more optimized version of the core transform. Signed-off-by: Ard Biesheuvel Signed-off-by: Herbert Xu --- arch/arm64/crypto/sha512-ce-core.S | 145 ++++++++++++++++++------------------- arch/arm64/crypto/sha512-glue.c | 1 + 2 files changed, 72 insertions(+), 74 deletions(-) diff --git a/arch/arm64/crypto/sha512-ce-core.S b/arch/arm64/crypto/sha512-ce-core.S index 6c562f8..7f3bca5 100644 --- a/arch/arm64/crypto/sha512-ce-core.S +++ b/arch/arm64/crypto/sha512-ce-core.S @@ -12,10 +12,7 @@ #include #include - // - // Temporary - for testing only. binutils has no support for these yet - // - .irp b,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 + .irp b,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19 .set .Lq\b, \b .set .Lv\b\().2d, \b .endr @@ -36,12 +33,10 @@ .inst 0xce608800 | .L\rd | (.L\rn << 5) | (.L\rm << 16) .endm - .text - .arch armv8-a+crypto - /* * The SHA-512 round constants */ + .section ".rodata", "a" .align 4 .Lsha512_rcon: .quad 0x428a2f98d728ae22, 0x7137449123ef65cd @@ -87,20 +82,20 @@ .macro dround, i0, i1, i2, i3, i4, rc0, rc1, in0, in1, in2, in3, in4 .ifnb \rc1 - ld1 {v\rc1\().2d}, [x3], #16 + ld1 {v\rc1\().2d}, [x4], #16 .endif - add v\rc0\().2d, v\rc0\().2d, v\in0\().2d + add v5.2d, v\rc0\().2d, v\in0\().2d ext v6.16b, v\i2\().16b, v\i3\().16b, #8 - ext v\rc0\().16b, v\rc0\().16b, v\rc0\().16b, #8 + ext v5.16b, v5.16b, v5.16b, #8 ext v7.16b, v\i1\().16b, v\i2\().16b, #8 - add v\i3\().2d, v\i3\().2d, v\rc0\().2d + add v\i3\().2d, v\i3\().2d, v5.2d .ifnb \in1 - ext v10.16b, v\in3\().16b, v\in4\().16b, #8 + ext v5.16b, v\in3\().16b, v\in4\().16b, #8 sha512su0 v\in0\().2d, v\in1\().2d .endif sha512h q\i3, q6, v7.2d .ifnb \in1 - sha512su1 v\in0\().2d, v\in2\().2d, v10.2d + sha512su1 v\in0\().2d, v\in2\().2d, v5.2d .endif add v\i4\().2d, v\i1\().2d, v\i3\().2d sha512h2 q\i3, q\i1, v\i0\().2d @@ -110,18 +105,20 @@ * void sha512_ce_transform(struct sha512_state *sst, u8 const *src, * int blocks) */ + .text ENTRY(sha512_ce_transform) /* load state */ - ld1 {v20.2d-v23.2d}, [x0] + ld1 {v8.2d-v11.2d}, [x0] + + /* load first 4 round constants */ + adr_l x3, .Lsha512_rcon + ld1 {v20.2d-v23.2d}, [x3], #64 /* load input */ 0: ld1 {v12.2d-v15.2d}, [x1], #64 ld1 {v16.2d-v19.2d}, [x1], #64 sub w2, w2, #1 - /* load round constants */ - adr x3, .Lsha512_rcon - CPU_LE( rev64 v12.16b, v12.16b ) CPU_LE( rev64 v13.16b, v13.16b ) CPU_LE( rev64 v14.16b, v14.16b ) @@ -131,12 +128,12 @@ CPU_LE( rev64 v17.16b, v17.16b ) CPU_LE( rev64 v18.16b, v18.16b ) CPU_LE( rev64 v19.16b, v19.16b ) - ld1 {v8.2d}, [x3], #16 + mov x4, x3 // rc pointer - mov v0.16b, v20.16b - mov v1.16b, v21.16b - mov v2.16b, v22.16b - mov v3.16b, v23.16b + mov v0.16b, v8.16b + mov v1.16b, v9.16b + mov v2.16b, v10.16b + mov v3.16b, v11.16b // v0 ab cd -- ef gh ab // v1 cd -- ef gh ab cd @@ -144,64 +141,64 @@ CPU_LE( rev64 v19.16b, v19.16b ) // v3 gh ab cd -- ef gh // v4 -- ef gh ab cd -- - dround 0, 1, 2, 3, 4, 8, 9, 12, 13, 19, 16, 17 - dround 3, 0, 4, 2, 1, 9, 8, 13, 14, 12, 17, 18 - dround 2, 3, 1, 4, 0, 8, 9, 14, 15, 13, 18, 19 - dround 4, 2, 0, 1, 3, 9, 8, 15, 16, 14, 19, 12 - dround 1, 4, 3, 0, 2, 8, 9, 16, 17, 15, 12, 13 - - dround 0, 1, 2, 3, 4, 9, 8, 17, 18, 16, 13, 14 - dround 3, 0, 4, 2, 1, 8, 9, 18, 19, 17, 14, 15 - dround 2, 3, 1, 4, 0, 9, 8, 19, 12, 18, 15, 16 - dround 4, 2, 0, 1, 3, 8, 9, 12, 13, 19, 16, 17 - dround 1, 4, 3, 0, 2, 9, 8, 13, 14, 12, 17, 18 - - dround 0, 1, 2, 3, 4, 8, 9, 14, 15, 13, 18, 19 - dround 3, 0, 4, 2, 1, 9, 8, 15, 16, 14, 19, 12 - dround 2, 3, 1, 4, 0, 8, 9, 16, 17, 15, 12, 13 - dround 4, 2, 0, 1, 3, 9, 8, 17, 18, 16, 13, 14 - dround 1, 4, 3, 0, 2, 8, 9, 18, 19, 17, 14, 15 - - dround 0, 1, 2, 3, 4, 9, 8, 19, 12, 18, 15, 16 - dround 3, 0, 4, 2, 1, 8, 9, 12, 13, 19, 16, 17 - dround 2, 3, 1, 4, 0, 9, 8, 13, 14, 12, 17, 18 - dround 4, 2, 0, 1, 3, 8, 9, 14, 15, 13, 18, 19 - dround 1, 4, 3, 0, 2, 9, 8, 15, 16, 14, 19, 12 - - dround 0, 1, 2, 3, 4, 8, 9, 16, 17, 15, 12, 13 - dround 3, 0, 4, 2, 1, 9, 8, 17, 18, 16, 13, 14 - dround 2, 3, 1, 4, 0, 8, 9, 18, 19, 17, 14, 15 - dround 4, 2, 0, 1, 3, 9, 8, 19, 12, 18, 15, 16 - dround 1, 4, 3, 0, 2, 8, 9, 12, 13, 19, 16, 17 - - dround 0, 1, 2, 3, 4, 9, 8, 13, 14, 12, 17, 18 - dround 3, 0, 4, 2, 1, 8, 9, 14, 15, 13, 18, 19 - dround 2, 3, 1, 4, 0, 9, 8, 15, 16, 14, 19, 12 - dround 4, 2, 0, 1, 3, 8, 9, 16, 17, 15, 12, 13 - dround 1, 4, 3, 0, 2, 9, 8, 17, 18, 16, 13, 14 - - dround 0, 1, 2, 3, 4, 8, 9, 18, 19, 17, 14, 15 - dround 3, 0, 4, 2, 1, 9, 8, 19, 12, 18, 15, 16 - dround 2, 3, 1, 4, 0, 8, 9, 12 - dround 4, 2, 0, 1, 3, 9, 8, 13 - dround 1, 4, 3, 0, 2, 8, 9, 14 - - dround 0, 1, 2, 3, 4, 9, 8, 15 - dround 3, 0, 4, 2, 1, 8, 9, 16 - dround 2, 3, 1, 4, 0, 9, 8, 17 - dround 4, 2, 0, 1, 3, 8, 9, 18 - dround 1, 4, 3, 0, 2, 9, , 19 + dround 0, 1, 2, 3, 4, 20, 24, 12, 13, 19, 16, 17 + dround 3, 0, 4, 2, 1, 21, 25, 13, 14, 12, 17, 18 + dround 2, 3, 1, 4, 0, 22, 26, 14, 15, 13, 18, 19 + dround 4, 2, 0, 1, 3, 23, 27, 15, 16, 14, 19, 12 + dround 1, 4, 3, 0, 2, 24, 28, 16, 17, 15, 12, 13 + + dround 0, 1, 2, 3, 4, 25, 29, 17, 18, 16, 13, 14 + dround 3, 0, 4, 2, 1, 26, 30, 18, 19, 17, 14, 15 + dround 2, 3, 1, 4, 0, 27, 31, 19, 12, 18, 15, 16 + dround 4, 2, 0, 1, 3, 28, 24, 12, 13, 19, 16, 17 + dround 1, 4, 3, 0, 2, 29, 25, 13, 14, 12, 17, 18 + + dround 0, 1, 2, 3, 4, 30, 26, 14, 15, 13, 18, 19 + dround 3, 0, 4, 2, 1, 31, 27, 15, 16, 14, 19, 12 + dround 2, 3, 1, 4, 0, 24, 28, 16, 17, 15, 12, 13 + dround 4, 2, 0, 1, 3, 25, 29, 17, 18, 16, 13, 14 + dround 1, 4, 3, 0, 2, 26, 30, 18, 19, 17, 14, 15 + + dround 0, 1, 2, 3, 4, 27, 31, 19, 12, 18, 15, 16 + dround 3, 0, 4, 2, 1, 28, 24, 12, 13, 19, 16, 17 + dround 2, 3, 1, 4, 0, 29, 25, 13, 14, 12, 17, 18 + dround 4, 2, 0, 1, 3, 30, 26, 14, 15, 13, 18, 19 + dround 1, 4, 3, 0, 2, 31, 27, 15, 16, 14, 19, 12 + + dround 0, 1, 2, 3, 4, 24, 28, 16, 17, 15, 12, 13 + dround 3, 0, 4, 2, 1, 25, 29, 17, 18, 16, 13, 14 + dround 2, 3, 1, 4, 0, 26, 30, 18, 19, 17, 14, 15 + dround 4, 2, 0, 1, 3, 27, 31, 19, 12, 18, 15, 16 + dround 1, 4, 3, 0, 2, 28, 24, 12, 13, 19, 16, 17 + + dround 0, 1, 2, 3, 4, 29, 25, 13, 14, 12, 17, 18 + dround 3, 0, 4, 2, 1, 30, 26, 14, 15, 13, 18, 19 + dround 2, 3, 1, 4, 0, 31, 27, 15, 16, 14, 19, 12 + dround 4, 2, 0, 1, 3, 24, 28, 16, 17, 15, 12, 13 + dround 1, 4, 3, 0, 2, 25, 29, 17, 18, 16, 13, 14 + + dround 0, 1, 2, 3, 4, 26, 30, 18, 19, 17, 14, 15 + dround 3, 0, 4, 2, 1, 27, 31, 19, 12, 18, 15, 16 + dround 2, 3, 1, 4, 0, 28, 24, 12 + dround 4, 2, 0, 1, 3, 29, 25, 13 + dround 1, 4, 3, 0, 2, 30, 26, 14 + + dround 0, 1, 2, 3, 4, 31, 27, 15 + dround 3, 0, 4, 2, 1, 24, , 16 + dround 2, 3, 1, 4, 0, 25, , 17 + dround 4, 2, 0, 1, 3, 26, , 18 + dround 1, 4, 3, 0, 2, 27, , 19 /* update state */ - add v20.2d, v20.2d, v0.2d - add v21.2d, v21.2d, v1.2d - add v22.2d, v22.2d, v2.2d - add v23.2d, v23.2d, v3.2d + add v8.2d, v8.2d, v0.2d + add v9.2d, v9.2d, v1.2d + add v10.2d, v10.2d, v2.2d + add v11.2d, v11.2d, v3.2d /* handled all input blocks? */ cbnz w2, 0b /* store new state */ -3: st1 {v20.2d-v23.2d}, [x0] +3: st1 {v8.2d-v11.2d}, [x0] ret ENDPROC(sha512_ce_transform) diff --git a/arch/arm64/crypto/sha512-glue.c b/arch/arm64/crypto/sha512-glue.c index aff35c9..27db485 100644 --- a/arch/arm64/crypto/sha512-glue.c +++ b/arch/arm64/crypto/sha512-glue.c @@ -27,6 +27,7 @@ MODULE_ALIAS_CRYPTO("sha512"); asmlinkage void sha512_block_data_order(u32 *digest, const void *data, unsigned int num_blks); +EXPORT_SYMBOL(sha512_block_data_order); static int sha512_update(struct shash_desc *desc, const u8 *data, unsigned int len) -- cgit v1.1