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crypto: caam - Modify Freescale CAAM driver Scatter Gather entry definition 

Modify the Scatter-Gather entry definitions for the Freescale
CAAM driver to include support for both 64- and 32-bit DMA pointers.

Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
Tested-by: Horia Geantă <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Victoria Milhoan 2015-08-05 11:28:38 -07:00 committed by Herbert Xu
parent 24821c4652
commit 1f06ec1d48
2 changed files with 21 additions and 5 deletions
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25
drivers/crypto/caam/desc.h
View File

@ -8,12 +8,29 @@
#ifndef DESC_H
#define DESC_H
/*
* 16-byte hardware scatter/gather table
* An 8-byte table exists in the hardware spec, but has never been
* implemented to date. The 8/16 option is selected at RTL-compile-time.
* and this selection is visible in the Compile Time Parameters Register
*/
#define SEC4_SG_LEN_EXT 0x80000000 /* Entry points to table */
#define SEC4_SG_LEN_FIN 0x40000000 /* Last ent in table */
#define SEC4_SG_BPID_MASK 0x000000ff
#define SEC4_SG_BPID_SHIFT 16
#define SEC4_SG_LEN_MASK 0x3fffffff /* Excludes EXT and FINAL */
#define SEC4_SG_OFFS_MASK 0x00001fff
struct sec4_sg_entry {
u64 ptr;
#define SEC4_SG_LEN_FIN 0x40000000
#define SEC4_SG_LEN_EXT 0x80000000
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
dma_addr_t ptr;
#else
u32 rsvd1;
dma_addr_t ptr;
#endif
u32 len;
u8 reserved;
u8 rsvd2;
u8 buf_pool_id;
u16 offset;
};

1
drivers/crypto/caam/sg_sw_sec4.h
View File

@ -15,7 +15,6 @@ static inline void dma_to_sec4_sg_one(struct sec4_sg_entry *sec4_sg_ptr,
{
sec4_sg_ptr->ptr = dma;
sec4_sg_ptr->len = len;
sec4_sg_ptr->reserved = 0;
sec4_sg_ptr->buf_pool_id = 0;
sec4_sg_ptr->offset = offset;
#ifdef DEBUG