[PATCH v1 1/7] AES for PPC/SPE - register defines Define some register aliases for better readability. Signed-off-by: Markus Stockhausen <stockhausen@xxxxxxxxxxx> diff --git a/arch/powerpc/crypto/aes-spe-regs.h b/arch/powerpc/crypto/aes-spe-regs.h new file mode 100644 index 0000000..30d217b --- /dev/null +++ b/arch/powerpc/crypto/aes-spe-regs.h @@ -0,0 +1,42 @@ +/* + * Common registers for PPC AES implementation + * + * Copyright (c) 2015 Markus Stockhausen <stockhausen@xxxxxxxxxxx> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + */ + +#define rKS r0 /* copy of en-/decryption key pointer */ +#define rDP r3 /* destination pointer */ +#define rSP r4 /* source pointer */ +#define rKP r5 /* pointer to en-/decryption key pointer */ +#define rRR r6 /* en-/decryption rounds */ +#define rLN r7 /* length of data to be processed */ +#define rIP r8 /* potiner to IV (CBC/CTR/XTS modes) */ +#define rKT r9 /* pointer to tweak key (XTS mode) */ +#define rT0 r11 /* pointers to en-/decrpytion tables */ +#define rT1 r10 +#define rD0 r9 /* data */ +#define rD1 r14 +#define rD2 r12 +#define rD3 r15 +#define rW0 r16 /* working registers */ +#define rW1 r17 +#define rW2 r18 +#define rW3 r19 +#define rW4 r20 +#define rW5 r21 +#define rW6 r22 +#define rW7 r23 +#define rI0 r24 /* IV */ +#define rI1 r25 +#define rI2 r26 +#define rI3 r27 +#define rG0 r28 /* endian reversed tweak (XTS mode) */ +#define rG1 r29 +#define rG2 r30 +#define rG3 r31
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