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path: root/drivers/crypto/caam/jr.c
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Diffstat (limited to 'drivers/crypto/caam/jr.c')
-rw-r--r--drivers/crypto/caam/jr.c89
1 files changed, 77 insertions, 12 deletions
diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index 340fa322c0f0..40bca549e236 100644
--- a/drivers/crypto/caam/jr.c
+++ b/drivers/crypto/caam/jr.c
@@ -2,7 +2,7 @@
* CAAM/SEC 4.x transport/backend driver
* JobR backend functionality
*
- * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ * Copyright 2008-2012 Freescale Semiconductor, Inc.
*/
#include "compat.h"
@@ -57,9 +57,18 @@ static void caam_jr_dequeue(unsigned long devarg)
struct caam_drv_private_jr *jrp = dev_get_drvdata(dev);
void (*usercall)(struct device *dev, u32 *desc, u32 status, void *arg);
u32 *userdesc, userstatus;
+ dma_addr_t outbusaddr;
void *userarg;
unsigned long flags;
+ outbusaddr = rd_reg64(&jrp->rregs->outring_base);
+ /* CAAM: Fix incorrect invalidate call for output ring */
+ /*
+ dma_sync_single_for_cpu(dev, outbusaddr,
+ sizeof(struct jr_outentry) * JOBR_DEPTH,
+ DMA_FROM_DEVICE);
+ */
+ /* -----END---- */
spin_lock_irqsave(&jrp->outlock, flags);
head = ACCESS_ONCE(jrp->head);
@@ -69,11 +78,15 @@ static void caam_jr_dequeue(unsigned long devarg)
rd_reg32(&jrp->rregs->outring_used)) {
hw_idx = jrp->out_ring_read_index;
+ /* CAAM: Fix incorrect invalidate call for output ring */
+ dma_sync_single_for_cpu(dev, outbusaddr,
+ sizeof(struct jr_outentry) * JOBR_DEPTH,
+ DMA_FROM_DEVICE);
+ /* -----END---- */
for (i = 0; CIRC_CNT(head, tail + i, JOBR_DEPTH) >= 1; i++) {
sw_idx = (tail + i) & (JOBR_DEPTH - 1);
smp_read_barrier_depends();
-
if (jrp->outring[hw_idx].desc ==
jrp->entinfo[sw_idx].desc_addr_dma)
break; /* found */
@@ -240,7 +253,7 @@ int caam_jr_enqueue(struct device *dev, u32 *desc,
struct caam_jrentry_info *head_entry;
unsigned long flags;
int head, tail, desc_size;
- dma_addr_t desc_dma;
+ dma_addr_t desc_dma, inpbusaddr;
desc_size = (*desc & HDR_JD_LENGTH_MASK) * sizeof(u32);
desc_dma = dma_map_single(dev, desc, desc_size, DMA_TO_DEVICE);
@@ -249,6 +262,12 @@ int caam_jr_enqueue(struct device *dev, u32 *desc,
return -EIO;
}
+ dma_sync_single_for_device(dev, desc_dma, desc_size, DMA_TO_DEVICE);
+
+ inpbusaddr = rd_reg64(&jrp->rregs->inpring_base);
+ dma_sync_single_for_device(dev, inpbusaddr,
+ sizeof(dma_addr_t) * JOBR_DEPTH,
+ DMA_TO_DEVICE);
spin_lock_irqsave(&jrp->inplock, flags);
head = jrp->head;
@@ -270,6 +289,10 @@ int caam_jr_enqueue(struct device *dev, u32 *desc,
jrp->inpring[jrp->inp_ring_write_index] = desc_dma;
+ dma_sync_single_for_device(dev, inpbusaddr,
+ sizeof(dma_addr_t) * JOBR_DEPTH,
+ DMA_TO_DEVICE);
+
smp_wmb();
jrp->inp_ring_write_index = (jrp->inp_ring_write_index + 1) &
@@ -343,7 +366,7 @@ static int caam_jr_init(struct device *dev)
(unsigned long)dev);
error = request_irq(jrp->irq, caam_jr_interrupt, IRQF_SHARED,
- "caam-jobr", dev);
+ "caam-jr", dev);
if (error) {
dev_err(dev, "can't connect JobR %d interrupt (%d)\n",
jrp->ridx, jrp->irq);
@@ -377,7 +400,7 @@ static int caam_jr_init(struct device *dev)
/* Setup rings */
inpbusaddr = dma_map_single(dev, jrp->inpring,
sizeof(u32 *) * JOBR_DEPTH,
- DMA_BIDIRECTIONAL);
+ DMA_TO_DEVICE);
if (dma_mapping_error(dev, inpbusaddr)) {
dev_err(dev, "caam_jr_init(): can't map input ring\n");
kfree(jrp->inpring);
@@ -388,12 +411,12 @@ static int caam_jr_init(struct device *dev)
outbusaddr = dma_map_single(dev, jrp->outring,
sizeof(struct jr_outentry) * JOBR_DEPTH,
- DMA_BIDIRECTIONAL);
+ DMA_FROM_DEVICE);
if (dma_mapping_error(dev, outbusaddr)) {
dev_err(dev, "caam_jr_init(): can't map output ring\n");
dma_unmap_single(dev, inpbusaddr,
sizeof(u32 *) * JOBR_DEPTH,
- DMA_BIDIRECTIONAL);
+ DMA_TO_DEVICE);
kfree(jrp->inpring);
kfree(jrp->outring);
kfree(jrp->entinfo);
@@ -446,11 +469,9 @@ int caam_jr_shutdown(struct device *dev)
outbusaddr = rd_reg64(&jrp->rregs->outring_base);
dma_unmap_single(dev, outbusaddr,
sizeof(struct jr_outentry) * JOBR_DEPTH,
- DMA_BIDIRECTIONAL);
+ DMA_FROM_DEVICE);
dma_unmap_single(dev, inpbusaddr, sizeof(u32 *) * JOBR_DEPTH,
- DMA_BIDIRECTIONAL);
- kfree(jrp->outring);
- kfree(jrp->inpring);
+ DMA_TO_DEVICE);
kfree(jrp->entinfo);
return ret;
@@ -467,8 +488,12 @@ int caam_jr_probe(struct platform_device *pdev, struct device_node *np,
struct platform_device *jr_pdev;
struct caam_drv_private *ctrlpriv;
struct caam_drv_private_jr *jrpriv;
- u32 *jroffset;
int error;
+ /* FIXME: perhaps "struct resource *" for OF and non? */
+ u32 *jroffset, *irqres;
+#ifndef CONFIG_OF
+ char *rname, rinst;
+#endif
ctrldev = &pdev->dev;
ctrlpriv = dev_get_drvdata(ctrldev);
@@ -489,12 +514,35 @@ int caam_jr_probe(struct platform_device *pdev, struct device_node *np,
* need to add in the offset to this JobR. Don't know if I
* like this long-term, but it'll run
*/
+#ifdef CONFIG_OF
jroffset = (u32 *)of_get_property(np, "reg", NULL);
+#else
+ rname = kmalloc(strlen(JR_MEMRES_NAME_ROOT) + 1, 0);
+ if (rname == NULL) {
+ dev_err(ctrldev, "can't alloc resource detection buffer %d\n",
+ ring);
+ kfree(jrpriv);
+ return -ENOMEM;
+ }
+ rname[0] = 0;
+ rinst = '0' + ring;
+ strcat(rname, JR_MEMRES_NAME_ROOT);
+ strncat(rname, &rinst, 1);
+ jroffset = (u32 *)platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ rname);
+ kfree(rname);
+#endif
jrpriv->rregs = (struct caam_job_ring __iomem *)((void *)ctrlpriv->ctrl
+ *jroffset);
/* Build a local dev for each detected queue */
+#ifdef CONFIG_OF
jr_pdev = of_platform_device_create(np, NULL, ctrldev);
+#else
+ jr_pdev = platform_device_register_data(ctrldev, "caam_jr", ring,
+ jrpriv,
+ sizeof(struct caam_drv_private_jr));
+#endif
if (jr_pdev == NULL) {
kfree(jrpriv);
return -EINVAL;
@@ -504,7 +552,24 @@ int caam_jr_probe(struct platform_device *pdev, struct device_node *np,
ctrlpriv->jrdev[ring] = jrdev;
/* Identify the interrupt */
+#ifdef CONFIG_OF
jrpriv->irq = of_irq_to_resource(np, 0, NULL);
+#else
+ rname = kmalloc(strlen(JR_IRQRES_NAME_ROOT) + 1, 0);
+ if (rname == NULL) {
+ dev_err(ctrldev, "can't alloc resource detection buffer %d\n",
+ ring);
+ kfree(jrpriv);
+ return -ENOMEM;
+ }
+ rname[0] = 0;
+ strcat(rname, JR_IRQRES_NAME_ROOT);
+ strncat(rname, &rinst, 1);
+ irqres = (u32 *)platform_get_resource_byname(pdev, IORESOURCE_IRQ,
+ rname);
+ jrpriv->irq = *irqres;
+ kfree(rname);
+#endif
/* Now do the platform independent part */
error = caam_jr_init(jrdev); /* now turn on hardware */
generated by cgit v1.2.3 (git 2.0.4) at 2024-04-20 00:26:00 +0000