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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _XOR_IMPL_H
#define _XOR_IMPL_H
#include <linux/init.h>
#include <linux/minmax.h>
struct xor_block_template {
struct xor_block_template *next;
const char *name;
int speed;
void (*xor_gen)(void *dest, void **srcs, unsigned int src_cnt,
unsigned int bytes);
};
#define __DO_XOR_BLOCKS(_name, _handle1, _handle2, _handle3, _handle4) \
void \
xor_gen_##_name(void *dest, void **srcs, unsigned int src_cnt, \
unsigned int bytes) \
{ \
unsigned int src_off = 0; \
\
while (src_cnt > 0) { \
unsigned int this_cnt = min(src_cnt, 4); \
\
if (this_cnt == 1) \
_handle1(bytes, dest, srcs[src_off]); \
else if (this_cnt == 2) \
_handle2(bytes, dest, srcs[src_off], \
srcs[src_off + 1]); \
else if (this_cnt == 3) \
_handle3(bytes, dest, srcs[src_off], \
srcs[src_off + 1], srcs[src_off + 2]); \
else \
_handle4(bytes, dest, srcs[src_off], \
srcs[src_off + 1], srcs[src_off + 2], \
srcs[src_off + 3]); \
\
src_cnt -= this_cnt; \
src_off += this_cnt; \
} \
}
#define DO_XOR_BLOCKS(_name, _handle1, _handle2, _handle3, _handle4) \
static __DO_XOR_BLOCKS(_name, _handle1, _handle2, _handle3, _handle4)
/* generic implementations */
extern struct xor_block_template xor_block_8regs;
extern struct xor_block_template xor_block_32regs;
extern struct xor_block_template xor_block_8regs_p;
extern struct xor_block_template xor_block_32regs_p;
void __init xor_register(struct xor_block_template *tmpl);
void __init xor_force(struct xor_block_template *tmpl);
#endif /* _XOR_IMPL_H */
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