[PATCH 1/8] crypto: caam - fix SEQ IN PTR command when RTO or PRE bit is set

[Andrei Varvara]

SEQ IN PTR command does not require pointer if RTO or PRE bit is set
Updated desc_constr.h accordingly.

Signed-off-by: Andrei Varvara <andrei.varv...@freescale.com>
Reviewed-by: Phillips Kim-R1AAHA <kim.phill...@freescale.com>
Reviewed-by: Fleming Andrew-AFLEMING <aflem...@freescale.com>
---
 drivers/crypto/caam/desc.h        |    4 ++--
 drivers/crypto/caam/desc_constr.h |    8 ++++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/crypto/caam/desc.h b/drivers/crypto/caam/desc.h
index f7f833b..89fa3d0 100644
--- a/drivers/crypto/caam/desc.h
+++ b/drivers/crypto/caam/desc.h
@@ -1290,18 +1290,18 @@ struct sec4_sg_entry {
  * SEQ_OUT_PTR Command Constructs
  */
 
 /* Sequence pointer is a scatter-gather table */
 #define SQOUT_SGF      0x01000000
 
 /* Appends to a previous pointer */
-#define SQOUT_PRE      0x00800000
+#define SQOUT_PRE      SQIN_PRE
 
 /* Restore sequence with pointer/length */
-#define SQOUT_RTO      0x00200000
+#define SQOUT_RTO       SQIN_RTO
 
 /* Use extended length following pointer */
 #define SQOUT_EXT      0x00400000
 
 #define SQOUT_LEN_SHIFT                0
 #define SQOUT_LEN_MASK         (0xffff << SQOUT_LEN_SHIFT)
 
diff --git a/drivers/crypto/caam/desc_constr.h 
b/drivers/crypto/caam/desc_constr.h
index c85c1f0..19501b5 100644
--- a/drivers/crypto/caam/desc_constr.h
+++ b/drivers/crypto/caam/desc_constr.h
@@ -118,15 +118,16 @@ static inline void append_cmd_ptr(u32 *desc, dma_addr_t 
ptr, int len,
 }
 
 /* Write length after pointer, rather than inside command */
 static inline void append_cmd_ptr_extlen(u32 *desc, dma_addr_t ptr,
                                         unsigned int len, u32 command)
 {
        append_cmd(desc, command);
-       append_ptr(desc, ptr);
+       if (!(command & (SQIN_RTO | SQIN_PRE)))
+               append_ptr(desc, ptr);
        append_cmd(desc, len);
 }
 
 static inline void append_cmd_data(u32 *desc, void *data, int len,
                                   u32 command)
 {
        append_cmd(desc, command | IMMEDIATE | len);
@@ -182,15 +183,18 @@ APPEND_CMD_PTR(fifo_store, FIFO_STORE)
 
 #define APPEND_SEQ_PTR_INTLEN(cmd, op) \
 static inline void append_seq_##cmd##_ptr_intlen(u32 *desc, dma_addr_t ptr, \
                                                 unsigned int len, \
                                                 u32 options) \
 { \
        PRINT_POS; \
-       append_cmd_ptr(desc, ptr, len, CMD_SEQ_##op##_PTR | options); \
+       if (options & (SQIN_RTO | SQIN_PRE)) \
+               append_cmd(desc, CMD_SEQ_##op##_PTR | len | options); \
+       else \
+               append_cmd_ptr(desc, ptr, len, CMD_SEQ_##op##_PTR | options); \
 }
 APPEND_SEQ_PTR_INTLEN(in, IN)
 APPEND_SEQ_PTR_INTLEN(out, OUT)
 
 #define APPEND_CMD_PTR_TO_IMM(cmd, op) \
 static inline void append_##cmd##_as_imm(u32 *desc, void *data, \
                                         unsigned int len, u32 options) \
-- 
1.7.3.4


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