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crypto: caam - Fix STORE command to support overwriting Shared Descriptor's memory 

In case Store command is used with overwrite Shared Descriptor
feature there is no need for pointer, it is using the
address from which the Shared Descriptor was fetched.

Signed-off-by: Andrei Varvara <andrei.varvara@freescale.com>
Reviewed-by: Phillips Kim-R1AAHA <Kim.Phillips@freescale.com>
Reviewed-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Andrei Varvara 2013-05-28 15:37:06 +08:00 committed by Herbert Xu
parent e2d4ea9444
commit 524f1bd9a3
1 changed files with 17 additions and 1 deletions
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18
drivers/crypto/caam/desc_constr.h
View File

@ -177,10 +177,26 @@ static inline void append_##cmd(u32 *desc, dma_addr_t ptr, unsigned int len, \
}
APPEND_CMD_PTR(key, KEY)
APPEND_CMD_PTR(load, LOAD)
APPEND_CMD_PTR(store, STORE)
APPEND_CMD_PTR(fifo_load, FIFO_LOAD)
APPEND_CMD_PTR(fifo_store, FIFO_STORE)
static inline void append_store(u32 *desc, dma_addr_t ptr, unsigned int len,
u32 options)
{
u32 cmd_src;
cmd_src = options & LDST_SRCDST_MASK;
append_cmd(desc, CMD_STORE | options | len);
/* The following options do not require pointer */
if (!(cmd_src == LDST_SRCDST_WORD_DESCBUF_SHARED ||
cmd_src == LDST_SRCDST_WORD_DESCBUF_JOB ||
cmd_src == LDST_SRCDST_WORD_DESCBUF_JOB_WE ||
cmd_src == LDST_SRCDST_WORD_DESCBUF_SHARED_WE))
append_ptr(desc, ptr);
}
#define APPEND_SEQ_PTR_INTLEN(cmd, op) \
static inline void append_seq_##cmd##_ptr_intlen(u32 *desc, dma_addr_t ptr, \
unsigned int len, \