diff options
| author | Dave Watson <davejwatson@fb.com> | 2018-12-10 19:57:12 +0000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-12-23 11:52:42 +0800 |
| commit | 2426f64bc51fc86951b735d2247d6eb89259d580 (patch) | |
| tree | 0c45fd2ebe368a47aa3325661bb2bf29231351d5 /arch/x86 | |
| parent | de85fc46b1037099c78d2fec08a662079e568d62 (diff) | |
crypto: aesni - Macro-ify func save/restore
Macro-ify function save and restore. These will be used in new functions
added for scatter/gather update operations.
Signed-off-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/crypto/aesni-intel_avx-x86_64.S | 94 |
1 files changed, 36 insertions, 58 deletions
diff --git a/arch/x86/crypto/aesni-intel_avx-x86_64.S b/arch/x86/crypto/aesni-intel_avx-x86_64.S index 284f1b8b88fc..dd895f69399b 100644 --- a/arch/x86/crypto/aesni-intel_avx-x86_64.S +++ b/arch/x86/crypto/aesni-intel_avx-x86_64.S @@ -247,6 +247,30 @@ VARIABLE_OFFSET = 16*8 # Utility Macros ################################ +.macro FUNC_SAVE + #the number of pushes must equal STACK_OFFSET + push %r12 + push %r13 + push %r14 + push %r15 + + mov %rsp, %r14 + + + + sub $VARIABLE_OFFSET, %rsp + and $~63, %rsp # align rsp to 64 bytes +.endm + +.macro FUNC_RESTORE + mov %r14, %rsp + + pop %r15 + pop %r14 + pop %r13 + pop %r12 +.endm + # Encryption of a single block .macro ENCRYPT_SINGLE_BLOCK XMM0 vpxor (arg1), \XMM0, \XMM0 @@ -264,22 +288,6 @@ VARIABLE_OFFSET = 16*8 # clobbering all xmm registers # clobbering r10, r11, r12, r13, r14, r15 .macro GCM_ENC_DEC INITIAL_BLOCKS GHASH_8_ENCRYPT_8_PARALLEL GHASH_LAST_8 GHASH_MUL ENC_DEC - - #the number of pushes must equal STACK_OFFSET - push %r12 - push %r13 - push %r14 - push %r15 - - mov %rsp, %r14 - - - - - sub $VARIABLE_OFFSET, %rsp - and $~63, %rsp # align rsp to 64 bytes - - vmovdqu HashKey(arg2), %xmm13 # xmm13 = HashKey mov arg5, %r13 # save the number of bytes of plaintext/ciphertext @@ -566,12 +574,6 @@ _T_16\@: vmovdqu %xmm9, (%r10) _return_T_done\@: - mov %r14, %rsp - - pop %r15 - pop %r14 - pop %r13 - pop %r12 .endm #ifdef CONFIG_AS_AVX @@ -1511,18 +1513,7 @@ _initial_blocks_done\@: # u8 *hash_subkey)# /* H, the Hash sub key input. Data starts on a 16-byte boundary. */ ############################################################# ENTRY(aesni_gcm_precomp_avx_gen2) - #the number of pushes must equal STACK_OFFSET - push %r12 - push %r13 - push %r14 - push %r15 - - mov %rsp, %r14 - - - - sub $VARIABLE_OFFSET, %rsp - and $~63, %rsp # align rsp to 64 bytes + FUNC_SAVE vmovdqu (arg3), %xmm6 # xmm6 = HashKey @@ -1546,12 +1537,7 @@ ENTRY(aesni_gcm_precomp_avx_gen2) PRECOMPUTE_AVX %xmm6, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5 - mov %r14, %rsp - - pop %r15 - pop %r14 - pop %r13 - pop %r12 + FUNC_RESTORE ret ENDPROC(aesni_gcm_precomp_avx_gen2) @@ -1573,7 +1559,9 @@ ENDPROC(aesni_gcm_precomp_avx_gen2) # Valid values are 16 (most likely), 12 or 8. */ ############################################################################### ENTRY(aesni_gcm_enc_avx_gen2) + FUNC_SAVE GCM_ENC_DEC INITIAL_BLOCKS_AVX GHASH_8_ENCRYPT_8_PARALLEL_AVX GHASH_LAST_8_AVX GHASH_MUL_AVX ENC + FUNC_RESTORE ret ENDPROC(aesni_gcm_enc_avx_gen2) @@ -1595,7 +1583,9 @@ ENDPROC(aesni_gcm_enc_avx_gen2) # Valid values are 16 (most likely), 12 or 8. */ ############################################################################### ENTRY(aesni_gcm_dec_avx_gen2) + FUNC_SAVE GCM_ENC_DEC INITIAL_BLOCKS_AVX GHASH_8_ENCRYPT_8_PARALLEL_AVX GHASH_LAST_8_AVX GHASH_MUL_AVX DEC + FUNC_RESTORE ret ENDPROC(aesni_gcm_dec_avx_gen2) #endif /* CONFIG_AS_AVX */ @@ -2525,18 +2515,7 @@ _initial_blocks_done\@: # Data starts on a 16-byte boundary. */ ############################################################# ENTRY(aesni_gcm_precomp_avx_gen4) - #the number of pushes must equal STACK_OFFSET - push %r12 - push %r13 - push %r14 - push %r15 - - mov %rsp, %r14 - - - - sub $VARIABLE_OFFSET, %rsp - and $~63, %rsp # align rsp to 64 bytes + FUNC_SAVE vmovdqu (arg3), %xmm6 # xmm6 = HashKey @@ -2560,12 +2539,7 @@ ENTRY(aesni_gcm_precomp_avx_gen4) PRECOMPUTE_AVX2 %xmm6, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5 - mov %r14, %rsp - - pop %r15 - pop %r14 - pop %r13 - pop %r12 + FUNC_RESTORE ret ENDPROC(aesni_gcm_precomp_avx_gen4) @@ -2588,7 +2562,9 @@ ENDPROC(aesni_gcm_precomp_avx_gen4) # Valid values are 16 (most likely), 12 or 8. */ ############################################################################### ENTRY(aesni_gcm_enc_avx_gen4) + FUNC_SAVE GCM_ENC_DEC INITIAL_BLOCKS_AVX2 GHASH_8_ENCRYPT_8_PARALLEL_AVX2 GHASH_LAST_8_AVX2 GHASH_MUL_AVX2 ENC + FUNC_RESTORE ret ENDPROC(aesni_gcm_enc_avx_gen4) @@ -2610,7 +2586,9 @@ ENDPROC(aesni_gcm_enc_avx_gen4) # Valid values are 16 (most likely), 12 or 8. */ ############################################################################### ENTRY(aesni_gcm_dec_avx_gen4) + FUNC_SAVE GCM_ENC_DEC INITIAL_BLOCKS_AVX2 GHASH_8_ENCRYPT_8_PARALLEL_AVX2 GHASH_LAST_8_AVX2 GHASH_MUL_AVX2 DEC + FUNC_RESTORE ret ENDPROC(aesni_gcm_dec_avx_gen4) |