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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.c124
1 files changed, 52 insertions, 72 deletions
diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index cea811fed320..fc97cde27059 100644
--- a/drivers/crypto/caam/jr.c
+++ b/drivers/crypto/caam/jr.c
@@ -108,25 +108,12 @@ static int caam_reset_hw_jr(struct device *dev)
static int caam_jr_shutdown(struct device *dev)
{
struct caam_drv_private_jr *jrp = dev_get_drvdata(dev);
- dma_addr_t inpbusaddr, outbusaddr;
int ret;
ret = caam_reset_hw_jr(dev);
tasklet_kill(&jrp->irqtask);
- /* Release interrupt */
- free_irq(jrp->irq, dev);
-
- /* Free rings */
- inpbusaddr = rd_reg64(&jrp->rregs->inpring_base);
- outbusaddr = rd_reg64(&jrp->rregs->outring_base);
- dma_free_coherent(dev, sizeof(dma_addr_t) * JOBR_DEPTH,
- jrp->inpring, inpbusaddr);
- dma_free_coherent(dev, sizeof(struct jr_outentry) * JOBR_DEPTH,
- jrp->outring, outbusaddr);
- kfree(jrp->entinfo);
-
return ret;
}
@@ -159,7 +146,6 @@ static int caam_jr_remove(struct platform_device *pdev)
ret = caam_jr_shutdown(jrdev);
if (ret)
dev_err(jrdev, "Failed to shut down job ring\n");
- irq_dispose_mapping(jrpriv->irq);
return ret;
}
@@ -224,7 +210,7 @@ static void caam_jr_dequeue(unsigned long devarg)
for (i = 0; CIRC_CNT(head, tail + i, JOBR_DEPTH) >= 1; i++) {
sw_idx = (tail + i) & (JOBR_DEPTH - 1);
- if (jrp->outring[hw_idx].desc ==
+ if (jr_outentry_desc(jrp->outring, hw_idx) ==
caam_dma_to_cpu(jrp->entinfo[sw_idx].desc_addr_dma))
break; /* found */
}
@@ -233,7 +219,8 @@ static void caam_jr_dequeue(unsigned long devarg)
/* Unmap just-run descriptor so we can post-process */
dma_unmap_single(dev,
- caam_dma_to_cpu(jrp->outring[hw_idx].desc),
+ caam_dma_to_cpu(jr_outentry_desc(jrp->outring,
+ hw_idx)),
jrp->entinfo[sw_idx].desc_size,
DMA_TO_DEVICE);
@@ -244,7 +231,8 @@ static void caam_jr_dequeue(unsigned long devarg)
usercall = jrp->entinfo[sw_idx].callbk;
userarg = jrp->entinfo[sw_idx].cbkarg;
userdesc = jrp->entinfo[sw_idx].desc_addr_virt;
- userstatus = caam32_to_cpu(jrp->outring[hw_idx].jrstatus);
+ userstatus = caam32_to_cpu(jr_outentry_jrstatus(jrp->outring,
+ hw_idx));
/*
* Make sure all information from the job has been obtained
@@ -399,7 +387,7 @@ 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
@@ -441,35 +429,26 @@ static int caam_jr_init(struct device *dev)
jrp = dev_get_drvdata(dev);
- tasklet_init(&jrp->irqtask, caam_jr_dequeue, (unsigned long)dev);
-
- /* Connect job ring interrupt handler. */
- error = request_irq(jrp->irq, caam_jr_interrupt, IRQF_SHARED,
- dev_name(dev), dev);
- if (error) {
- dev_err(dev, "can't connect JobR %d interrupt (%d)\n",
- jrp->ridx, jrp->irq);
- goto out_kill_deq;
- }
-
error = caam_reset_hw_jr(dev);
if (error)
- goto out_free_irq;
+ return error;
- error = -ENOMEM;
- jrp->inpring = dma_alloc_coherent(dev, sizeof(*jrp->inpring) *
- JOBR_DEPTH, &inpbusaddr, GFP_KERNEL);
+ jrp->inpring = dmam_alloc_coherent(dev, SIZEOF_JR_INPENTRY *
+ JOBR_DEPTH, &inpbusaddr,
+ GFP_KERNEL);
if (!jrp->inpring)
- goto out_free_irq;
+ return -ENOMEM;
- jrp->outring = dma_alloc_coherent(dev, sizeof(*jrp->outring) *
- JOBR_DEPTH, &outbusaddr, GFP_KERNEL);
+ jrp->outring = dmam_alloc_coherent(dev, SIZEOF_JR_OUTENTRY *
+ JOBR_DEPTH, &outbusaddr,
+ GFP_KERNEL);
if (!jrp->outring)
- goto out_free_inpring;
+ return -ENOMEM;
- jrp->entinfo = kcalloc(JOBR_DEPTH, sizeof(*jrp->entinfo), GFP_KERNEL);
+ jrp->entinfo = devm_kcalloc(dev, JOBR_DEPTH, sizeof(*jrp->entinfo),
+ GFP_KERNEL);
if (!jrp->entinfo)
- goto out_free_outring;
+ return -ENOMEM;
for (i = 0; i < JOBR_DEPTH; i++)
jrp->entinfo[i].desc_addr_dma = !0;
@@ -493,22 +472,24 @@ static int caam_jr_init(struct device *dev)
(JOBR_INTC_COUNT_THLD << JRCFG_ICDCT_SHIFT) |
(JOBR_INTC_TIME_THLD << JRCFG_ICTT_SHIFT));
- return 0;
+ tasklet_init(&jrp->irqtask, caam_jr_dequeue, (unsigned long)dev);
+
+ /* Connect job ring interrupt handler. */
+ error = devm_request_irq(dev, jrp->irq, caam_jr_interrupt, IRQF_SHARED,
+ dev_name(dev), dev);
+ if (error) {
+ dev_err(dev, "can't connect JobR %d interrupt (%d)\n",
+ jrp->ridx, jrp->irq);
+ tasklet_kill(&jrp->irqtask);
+ }
-out_free_outring:
- dma_free_coherent(dev, sizeof(struct jr_outentry) * JOBR_DEPTH,
- jrp->outring, outbusaddr);
-out_free_inpring:
- dma_free_coherent(dev, sizeof(dma_addr_t) * JOBR_DEPTH,
- jrp->inpring, inpbusaddr);
- dev_err(dev, "can't allocate job rings for %d\n", jrp->ridx);
-out_free_irq:
- free_irq(jrp->irq, dev);
-out_kill_deq:
- tasklet_kill(&jrp->irqtask);
return error;
}
+static void caam_jr_irq_dispose_mapping(void *data)
+{
+ irq_dispose_mapping((unsigned long)data);
+}
/*
* Probe routine for each detected JobR subsystem.
@@ -520,6 +501,7 @@ static int caam_jr_probe(struct platform_device *pdev)
struct caam_job_ring __iomem *ctrl;
struct caam_drv_private_jr *jrpriv;
static int total_jobrs;
+ struct resource *r;
int error;
jrdev = &pdev->dev;
@@ -535,45 +517,43 @@ static int caam_jr_probe(struct platform_device *pdev)
nprop = pdev->dev.of_node;
/* Get configuration properties from device tree */
/* First, get register page */
- ctrl = of_iomap(nprop, 0);
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!r) {
+ dev_err(jrdev, "platform_get_resource() failed\n");
+ return -ENOMEM;
+ }
+
+ ctrl = devm_ioremap(jrdev, r->start, resource_size(r));
if (!ctrl) {
- dev_err(jrdev, "of_iomap() failed\n");
+ dev_err(jrdev, "devm_ioremap() failed\n");
return -ENOMEM;
}
jrpriv->rregs = (struct caam_job_ring __iomem __force *)ctrl;
- if (sizeof(dma_addr_t) == sizeof(u64)) {
- if (caam_dpaa2)
- error = dma_set_mask_and_coherent(jrdev,
- DMA_BIT_MASK(49));
- else if (of_device_is_compatible(nprop,
- "fsl,sec-v5.0-job-ring"))
- error = dma_set_mask_and_coherent(jrdev,
- DMA_BIT_MASK(40));
- else
- error = dma_set_mask_and_coherent(jrdev,
- DMA_BIT_MASK(36));
- } else {
- error = dma_set_mask_and_coherent(jrdev, DMA_BIT_MASK(32));
- }
+ error = dma_set_mask_and_coherent(jrdev, caam_get_dma_mask(jrdev));
if (error) {
dev_err(jrdev, "dma_set_mask_and_coherent failed (%d)\n",
error);
- iounmap(ctrl);
return error;
}
/* Identify the interrupt */
jrpriv->irq = irq_of_parse_and_map(nprop, 0);
+ if (!jrpriv->irq) {
+ dev_err(jrdev, "irq_of_parse_and_map failed\n");
+ return -EINVAL;
+ }
+
+ error = devm_add_action_or_reset(jrdev, caam_jr_irq_dispose_mapping,
+ (void *)(unsigned long)jrpriv->irq);
+ if (error)
+ return error;
/* Now do the platform independent part */
error = caam_jr_init(jrdev); /* now turn on hardware */
- if (error) {
- irq_dispose_mapping(jrpriv->irq);
- iounmap(ctrl);
+ if (error)
return error;
- }
jrpriv->dev = jrdev;
spin_lock(&driver_data.jr_alloc_lock);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 18:04:59 +0000