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Commit 3ebfa92f authored by Andrei Varvara's avatar Andrei Varvara Committed by Herbert Xu
Browse files

crypto: caam - Add new macros for building extended SEC descriptors (> 64 words) 



added all supported math funtion on 8 byte boundary with
immediate flag bit set automatically

added MATH_SRC0_DPOVRD & MATH_SRC1_DPOVRD

The function/defines above are needed for creating descriptors
longer than 64 words

Signed-off-by: default avatarAndrei Varvara <andrei.varvara@freescale.com>
Reviewed-by: default avatarPhillips Kim-R1AAHA <Kim.Phillips@freescale.com>
Reviewed-by: default avatarFleming Andrew-AFLEMING <AFLEMING@freescale.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent d179333b

drivers/crypto/caam/desc.h

+4 −0
Original line number Diff line number Diff line
@@ -366,6 +366,7 @@ struct sec4_sg_entry { 
#define FIFOLD_TYPE_LAST2FLUSH1 (0x05 << FIFOLD_TYPE_SHIFT)

#define FIFOLD_TYPE_LASTBOTH	(0x06 << FIFOLD_TYPE_SHIFT)

#define FIFOLD_TYPE_LASTBOTHFL	(0x07 << FIFOLD_TYPE_SHIFT)

#define FIFOLD_TYPE_NOINFOFIFO	(0x0F << FIFOLD_TYPE_SHIFT)



#define FIFOLDST_LEN_MASK	0xffff

#define FIFOLDST_EXT_LEN_MASK	0xffffffff
@@ -1359,6 +1360,7 @@ struct sec4_sg_entry { 
#define MOVE_DEST_MATH3		(0x07 << MOVE_DEST_SHIFT)

#define MOVE_DEST_CLASS1INFIFO	(0x08 << MOVE_DEST_SHIFT)

#define MOVE_DEST_CLASS2INFIFO	(0x09 << MOVE_DEST_SHIFT)

#define MOVE_DEST_INFIFO_NOINFO (0x0a << MOVE_DEST_SHIFT)

#define MOVE_DEST_PK_A		(0x0c << MOVE_DEST_SHIFT)

#define MOVE_DEST_CLASS1KEY	(0x0d << MOVE_DEST_SHIFT)

#define MOVE_DEST_CLASS2KEY	(0x0e << MOVE_DEST_SHIFT)
@@ -1411,6 +1413,7 @@ struct sec4_sg_entry { 
#define MATH_SRC0_REG2		(0x02 << MATH_SRC0_SHIFT)

#define MATH_SRC0_REG3		(0x03 << MATH_SRC0_SHIFT)

#define MATH_SRC0_IMM		(0x04 << MATH_SRC0_SHIFT)

#define MATH_SRC0_DPOVRD	(0x07 << MATH_SRC0_SHIFT)

#define MATH_SRC0_SEQINLEN	(0x08 << MATH_SRC0_SHIFT)

#define MATH_SRC0_SEQOUTLEN	(0x09 << MATH_SRC0_SHIFT)

#define MATH_SRC0_VARSEQINLEN	(0x0a << MATH_SRC0_SHIFT)
@@ -1425,6 +1428,7 @@ struct sec4_sg_entry { 
#define MATH_SRC1_REG2		(0x02 << MATH_SRC1_SHIFT)

#define MATH_SRC1_REG3		(0x03 << MATH_SRC1_SHIFT)

#define MATH_SRC1_IMM		(0x04 << MATH_SRC1_SHIFT)

#define MATH_SRC1_DPOVRD	(0x07 << MATH_SRC0_SHIFT)

#define MATH_SRC1_INFIFO	(0x0a << MATH_SRC1_SHIFT)

#define MATH_SRC1_OUTFIFO	(0x0b << MATH_SRC1_SHIFT)

#define MATH_SRC1_ONE		(0x0c << MATH_SRC1_SHIFT)

drivers/crypto/caam/desc_constr.h

+52 −1
Original line number Diff line number Diff line
@@ -110,6 +110,26 @@ static inline void append_cmd(u32 *desc, u32 command) 
	(*desc)++;

}



#define append_u32 append_cmd



static inline void append_u64(u32 *desc, u64 data)

{

	u32 *offset = desc_end(desc);



	*offset = upper_32_bits(data);

	*(++offset) = lower_32_bits(data);



	(*desc) += 2;

}



/* Write command without affecting header, and return pointer to next word */

static inline u32 *write_cmd(u32 *desc, u32 command)

{

	*desc = command;



	return desc + 1;

}



static inline void append_cmd_ptr(u32 *desc, dma_addr_t ptr, int len,

				  u32 command)

{
@@ -279,7 +299,7 @@ APPEND_CMD_RAW_IMM(load, LOAD, u32); 
 */

#define APPEND_MATH(op, desc, dest, src_0, src_1, len) \

append_cmd(desc, CMD_MATH | MATH_FUN_##op | MATH_DEST_##dest | \

	   MATH_SRC0_##src_0 | MATH_SRC1_##src_1 | (u32) (len & MATH_LEN_MASK));

	MATH_SRC0_##src_0 | MATH_SRC1_##src_1 | (u32)len);



#define append_math_add(desc, dest, src0, src1, len) \

	APPEND_MATH(ADD, desc, dest, src0, src1, len)
@@ -327,3 +347,34 @@ do { \ 
	APPEND_MATH_IMM_u32(LSHIFT, desc, dest, src0, src1, data)

#define append_math_rshift_imm_u32(desc, dest, src0, src1, data) \

	APPEND_MATH_IMM_u32(RSHIFT, desc, dest, src0, src1, data)



/* Exactly one source is IMM. Data is passed in as u64 value */

#define APPEND_MATH_IMM_u64(op, desc, dest, src_0, src_1, data) \

do { \

	u32 upper = (data >> 16) >> 16; \

	APPEND_MATH(op, desc, dest, src_0, src_1, CAAM_CMD_SZ * 2 | \

		    (upper ? 0 : MATH_IFB)); \

	if (upper) \

		append_u64(desc, data); \

	else \

		append_u32(desc, data); \

} while (0)



#define append_math_add_imm_u64(desc, dest, src0, src1, data) \

	APPEND_MATH_IMM_u64(ADD, desc, dest, src0, src1, data)

#define append_math_sub_imm_u64(desc, dest, src0, src1, data) \

	APPEND_MATH_IMM_u64(SUB, desc, dest, src0, src1, data)

#define append_math_add_c_imm_u64(desc, dest, src0, src1, data) \

	APPEND_MATH_IMM_u64(ADDC, desc, dest, src0, src1, data)

#define append_math_sub_b_imm_u64(desc, dest, src0, src1, data) \

	APPEND_MATH_IMM_u64(SUBB, desc, dest, src0, src1, data)

#define append_math_and_imm_u64(desc, dest, src0, src1, data) \

	APPEND_MATH_IMM_u64(AND, desc, dest, src0, src1, data)

#define append_math_or_imm_u64(desc, dest, src0, src1, data) \

	APPEND_MATH_IMM_u64(OR, desc, dest, src0, src1, data)

#define append_math_xor_imm_u64(desc, dest, src0, src1, data) \

	APPEND_MATH_IMM_u64(XOR, desc, dest, src0, src1, data)

#define append_math_lshift_imm_u64(desc, dest, src0, src1, data) \

	APPEND_MATH_IMM_u64(LSHIFT, desc, dest, src0, src1, data)

#define append_math_rshift_imm_u64(desc, dest, src0, src1, data) \

	APPEND_MATH_IMM_u64(RSHIFT, desc, dest, src0, src1, data)