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crypto: caam - make CAAM_PTR_SZ dynamic 

In order to be able to configure CAAM pointer size at run-time, which
needed to support i.MX8MQ, which is 64-bit SoC with 32-bit pointer
size, convert CAAM_PTR_SZ to refer to a global variable of the same
name ("caam_ptr_sz") and adjust the rest of the code accordingly. No
functional change intended.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Chris Spencer <christopher.spencer@sea.co.uk>
Cc: Cory Tusar <cory.tusar@zii.aero>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Horia Geantă <horia.geanta@nxp.com>
Cc: Aymen Sghaier <aymen.sghaier@nxp.com>
Cc: Leonard Crestez <leonard.crestez@nxp.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Andrey Smirnov 2019-08-20 13:23:55 -07:00 committed by Herbert Xu
parent 3a0944c536
commit 1a3daadce9
6 changed files with 16 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/crypto/caam/caamalg.c
View File

@ -74,7 +74,7 @@
#define CHACHAPOLY_DESC_JOB_IO_LEN (AEAD_DESC_JOB_IO_LEN + CAAM_CMD_SZ * 6)
#define DESC_MAX_USED_BYTES (CAAM_DESC_BYTES_MAX - DESC_JOB_IO_LEN)
#define DESC_MAX_USED_BYTES (CAAM_DESC_BYTES_MAX - DESC_JOB_IO_LEN_MIN)
#define DESC_MAX_USED_LEN (DESC_MAX_USED_BYTES / CAAM_CMD_SZ)
struct caam_alg_entry {

2
drivers/crypto/caam/caamhash.c
View File

@ -560,7 +560,7 @@ struct ahash_edesc {
dma_addr_t sec4_sg_dma;
int src_nents;
int sec4_sg_bytes;
u32 hw_desc[DESC_JOB_IO_LEN / sizeof(u32)] ____cacheline_aligned;
u32 hw_desc[DESC_JOB_IO_LEN_MAX / sizeof(u32)] ____cacheline_aligned;
struct sec4_sg_entry sec4_sg[0];
};

2
drivers/crypto/caam/caamrng.c
View File

@ -53,7 +53,7 @@
L1_CACHE_BYTES)
/* length of descriptors */
#define DESC_JOB_O_LEN (CAAM_CMD_SZ * 2 + CAAM_PTR_SZ * 2)
#define DESC_JOB_O_LEN (CAAM_CMD_SZ * 2 + CAAM_PTR_SZ_MAX * 2)
#define DESC_RNG_LEN (3 * CAAM_CMD_SZ)
/* Buffer, its dma address and lock */

1
drivers/crypto/caam/ctrl.c
View File

@ -602,6 +602,7 @@ static int caam_probe(struct platform_device *pdev)
caam_imx = (bool)imx_soc_match;
comp_params = rd_reg32(&ctrl->perfmon.comp_parms_ms);
caam_ptr_sz = sizeof(dma_addr_t);
caam_dpaa2 = !!(comp_params & CTPR_MS_DPAA2);
ctrlpriv->qi_present = !!(comp_params & CTPR_MS_QI_MASK);

12
drivers/crypto/caam/desc_constr.h
View File

@ -14,9 +14,14 @@
#define IMMEDIATE (1 << 23)
#define CAAM_CMD_SZ sizeof(u32)
#define CAAM_PTR_SZ sizeof(dma_addr_t)
#define CAAM_PTR_SZ caam_ptr_sz
#define CAAM_PTR_SZ_MAX sizeof(dma_addr_t)
#define CAAM_PTR_SZ_MIN sizeof(u32)
#define CAAM_DESC_BYTES_MAX (CAAM_CMD_SZ * MAX_CAAM_DESCSIZE)
#define DESC_JOB_IO_LEN (CAAM_CMD_SZ * 5 + CAAM_PTR_SZ * 3)
#define __DESC_JOB_IO_LEN(n) (CAAM_CMD_SZ * 5 + (n) * 3)
#define DESC_JOB_IO_LEN __DESC_JOB_IO_LEN(CAAM_PTR_SZ)
#define DESC_JOB_IO_LEN_MAX __DESC_JOB_IO_LEN(CAAM_PTR_SZ_MAX)
#define DESC_JOB_IO_LEN_MIN __DESC_JOB_IO_LEN(CAAM_PTR_SZ_MIN)
/*
* The CAAM QI hardware constructs a job descriptor which points
@ -43,7 +48,7 @@
* get loaded in deco buffer are '8' or '11'. The remaining words
* in deco buffer can be used for storing shared descriptor.
*/
#define MAX_SDLEN ((CAAM_DESC_BYTES_MAX - DESC_JOB_IO_LEN) / CAAM_CMD_SZ)
#define MAX_SDLEN ((CAAM_DESC_BYTES_MAX - DESC_JOB_IO_LEN_MIN) / CAAM_CMD_SZ)
#ifdef DEBUG
#define PRINT_POS do { printk(KERN_DEBUG "%02d: %s\n", desc_len(desc),\
@ -64,6 +69,7 @@
(LDOFF_ENABLE_AUTO_NFIFO << LDST_OFFSET_SHIFT))
extern bool caam_little_end;
extern size_t caam_ptr_sz;
/*
* HW fetches 4 S/G table entries at a time, irrespective of how many entries

3
drivers/crypto/caam/error.c
View File

@ -56,6 +56,9 @@ EXPORT_SYMBOL(caam_little_end);
bool caam_imx;
EXPORT_SYMBOL(caam_imx);
size_t caam_ptr_sz;
EXPORT_SYMBOL(caam_ptr_sz);
static const struct {
u8 value;
const char *error_text;