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authorAndrey Smirnov <andrew.smirnov@gmail.com>2019-08-20 23:23:58 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2019-08-30 11:05:30 +0300
commitdff36801a9f0cca4f8b074b4c8229dcc0400acd1 (patch)
tree6871f0ced78e718ba1cfb09848bd05fd573962f3 /drivers
parent6c5f898f12a3d65f04a928ffd7e38ae397c9a0d4 (diff)
downloadlinux-dff36801a9f0cca4f8b074b4c8229dcc0400acd1.tar.xz
crypto: caam - don't hardcode inpentry size
Using dma_addr_t for elements of JobR input ring is not appropriate on all 64-bit SoCs, some of which, like i.MX8MQ, use only 32-bit wide pointers there. Convert all of the code to use explicit helper function that can be later extended to support i.MX8MQ. 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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/crypto/caam/intern.h3
-rw-r--r--drivers/crypto/caam/jr.c4
-rw-r--r--drivers/crypto/caam/regs.h9
3 files changed, 13 insertions, 3 deletions
diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h
index 081805c0f88b..c00c7c84ec84 100644
--- a/drivers/crypto/caam/intern.h
+++ b/drivers/crypto/caam/intern.h
@@ -55,7 +55,8 @@ struct caam_drv_private_jr {
spinlock_t inplock ____cacheline_aligned; /* Input ring index lock */
u32 inpring_avail; /* Number of free entries in input ring */
int head; /* entinfo (s/w ring) head index */
- dma_addr_t *inpring; /* Base of input ring, alloc DMA-safe */
+ void *inpring; /* Base of input ring, alloc
+ * DMA-safe */
int out_ring_read_index; /* Output index "tail" */
int tail; /* entinfo (s/w ring) tail index */
void *outring; /* Base of output ring, DMA-safe */
diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index 6c91f38862e4..417ad52615c6 100644
--- a/drivers/crypto/caam/jr.c
+++ b/drivers/crypto/caam/jr.c
@@ -388,7 +388,7 @@ int caam_jr_enqueue(struct device *dev, u32 *desc,
head_entry->cbkarg = areq;
head_entry->desc_addr_dma = desc_dma;
- jrp->inpring[head] = cpu_to_caam_dma(desc_dma);
+ jr_inpentry_set(jrp->inpring, head, cpu_to_caam_dma(desc_dma));
/*
* Guarantee that the descriptor's DMA address has been written to
@@ -434,7 +434,7 @@ static int caam_jr_init(struct device *dev)
if (error)
return error;
- jrp->inpring = dmam_alloc_coherent(dev, sizeof(*jrp->inpring) *
+ jrp->inpring = dmam_alloc_coherent(dev, SIZEOF_JR_INPENTRY *
JOBR_DEPTH, &inpbusaddr,
GFP_KERNEL);
if (!jrp->inpring)
diff --git a/drivers/crypto/caam/regs.h b/drivers/crypto/caam/regs.h
index cf73015b3be0..6dbb269a3e7e 100644
--- a/drivers/crypto/caam/regs.h
+++ b/drivers/crypto/caam/regs.h
@@ -244,6 +244,15 @@ static inline u32 jr_outentry_jrstatus(void *outring, int hw_idx)
return jrstatus;
}
+static inline void jr_inpentry_set(void *inpring, int hw_idx, dma_addr_t val)
+{
+ dma_addr_t *inpentry = inpring;
+
+ inpentry[hw_idx] = val;
+}
+
+#define SIZEOF_JR_INPENTRY caam_ptr_sz
+
/* Version registers (Era 10+) e80-eff */
struct version_regs {