Release 4.10 drivers/crypto/caam/sg_sw_sec4.h
/*
* CAAM/SEC 4.x functions for using scatterlists in caam driver
*
* Copyright 2008-2011 Freescale Semiconductor, Inc.
*
*/
#include "regs.h"
struct sec4_sg_entry {
u64 ptr;
u32 len;
u32 bpid_offset;
};
/*
* convert single dma address to h/w link table format
*/
static inline void dma_to_sec4_sg_one(struct sec4_sg_entry *sec4_sg_ptr,
dma_addr_t dma, u32 len, u16 offset)
{
sec4_sg_ptr->ptr = cpu_to_caam_dma64(dma);
sec4_sg_ptr->len = cpu_to_caam32(len);
sec4_sg_ptr->bpid_offset = cpu_to_caam32(offset & SEC4_SG_OFFSET_MASK);
#ifdef DEBUG
print_hex_dump(KERN_ERR, "sec4_sg_ptr@: ",
DUMP_PREFIX_ADDRESS, 16, 4, sec4_sg_ptr,
sizeof(struct sec4_sg_entry), 1);
#endif
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yuan kang | yuan kang | 65 | 83.33% | 2 | 40.00% |
| horia geanta | horia geanta | 9 | 11.54% | 1 | 20.00% |
| cristian stoica | cristian stoica | 3 | 3.85% | 1 | 20.00% |
| tudor ambarus | tudor ambarus | 1 | 1.28% | 1 | 20.00% |
| Total | 78 | 100.00% | 5 | 100.00% |
/*
* convert scatterlist to h/w link table format
* but does not have final bit; instead, returns last entry
*/
static inline struct sec4_sg_entry *
sg_to_sec4_sg(struct scatterlist *sg, int sg_count,
struct sec4_sg_entry *sec4_sg_ptr, u16 offset)
{
while (sg_count) {
dma_to_sec4_sg_one(sec4_sg_ptr, sg_dma_address(sg),
sg_dma_len(sg), offset);
sec4_sg_ptr++;
sg = sg_next(sg);
sg_count--;
}
return sec4_sg_ptr - 1;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yuan kang | yuan kang | 64 | 96.97% | 2 | 50.00% |
| cristian stoica | cristian stoica | 2 | 3.03% | 2 | 50.00% |
| Total | 66 | 100.00% | 4 | 100.00% |
/*
* convert scatterlist to h/w link table format
* scatterlist must have been previously dma mapped
*/
static inline void sg_to_sec4_sg_last(struct scatterlist *sg, int sg_count,
struct sec4_sg_entry *sec4_sg_ptr,
u16 offset)
{
sec4_sg_ptr = sg_to_sec4_sg(sg, sg_count, sec4_sg_ptr, offset);
sec4_sg_ptr->len |= cpu_to_caam32(SEC4_SG_LEN_FIN);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yuan kang | yuan kang | 41 | 91.11% | 2 | 50.00% |
| horia geanta | horia geanta | 3 | 6.67% | 1 | 25.00% |
| cristian stoica | cristian stoica | 1 | 2.22% | 1 | 25.00% |
| Total | 45 | 100.00% | 4 | 100.00% |
static inline struct sec4_sg_entry *sg_to_sec4_sg_len(
struct scatterlist *sg, unsigned int total,
struct sec4_sg_entry *sec4_sg_ptr)
{
do {
unsigned int len = min(sg_dma_len(sg), total);
dma_to_sec4_sg_one(sec4_sg_ptr, sg_dma_address(sg), len, 0);
sec4_sg_ptr++;
sg = sg_next(sg);
total -= len;
} while (total);
return sec4_sg_ptr - 1;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| herbert xu | herbert xu | 78 | 100.00% | 1 | 100.00% |
| Total | 78 | 100.00% | 1 | 100.00% |
/* derive number of elements in scatterlist, but return 0 for 1 */
static inline int sg_count(struct scatterlist *sg_list, int nbytes)
{
int sg_nents = sg_nents_for_len(sg_list, nbytes);
if (likely(sg_nents == 1))
return 0;
return sg_nents;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yuan kang | yuan kang | 39 | 97.50% | 1 | 50.00% |
| labbe corentin | labbe corentin | 1 | 2.50% | 1 | 50.00% |
| Total | 40 | 100.00% | 2 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yuan kang | yuan kang | 215 | 65.35% | 2 | 22.22% |
| herbert xu | herbert xu | 78 | 23.71% | 1 | 11.11% |
| horia geanta | horia geanta | 28 | 8.51% | 2 | 22.22% |
| cristian stoica | cristian stoica | 6 | 1.82% | 2 | 22.22% |
| labbe corentin | labbe corentin | 1 | 0.30% | 1 | 11.11% |
| tudor ambarus | tudor ambarus | 1 | 0.30% | 1 | 11.11% |
| Total | 329 | 100.00% | 9 | 100.00% |
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