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authorAndrey Smirnov <andrew.smirnov@gmail.com>2019-08-20 23:23:55 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2019-08-30 11:05:30 +0300
commit1a3daadce955530df92b1bb22093618dd26a1717 (patch)
tree9351fafb3542317912601cf87ea35698b737bc6f
parent3a0944c5362654e13cde558ef81309a0fcf9112b (diff)
downloadlinux-1a3daadce955530df92b1bb22093618dd26a1717.tar.xz
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>
-rw-r--r--drivers/crypto/caam/caamalg.c2
-rw-r--r--drivers/crypto/caam/caamhash.c2
-rw-r--r--drivers/crypto/caam/caamrng.c2
-rw-r--r--drivers/crypto/caam/ctrl.c1
-rw-r--r--drivers/crypto/caam/desc_constr.h12
-rw-r--r--drivers/crypto/caam/error.c3
6 files changed, 16 insertions, 6 deletions
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index 3e2662cda9fd..2912006b946b 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -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 {
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index 8a07edb45dad..65399cb2a770 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -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];
};
diff --git a/drivers/crypto/caam/caamrng.c b/drivers/crypto/caam/caamrng.c
index 7fbda1b08360..e8baacaabe07 100644
--- a/drivers/crypto/caam/caamrng.c
+++ b/drivers/crypto/caam/caamrng.c
@@ -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 */
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 0b4007068c31..47b92451756f 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -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);
diff --git a/drivers/crypto/caam/desc_constr.h b/drivers/crypto/caam/desc_constr.h
index 1fe50a4fefaa..89187831d74f 100644
--- a/drivers/crypto/caam/desc_constr.h
+++ b/drivers/crypto/caam/desc_constr.h
@@ -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
diff --git a/drivers/crypto/caam/error.c b/drivers/crypto/caam/error.c
index b7fbf1be37a4..17c6108b6d41 100644
--- a/drivers/crypto/caam/error.c
+++ b/drivers/crypto/caam/error.c
@@ -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;