lkml.org 
[lkml]   [2019]   [Aug]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v8 03/16] crypto: caam - convert caam_jr_init() to use devres
Date
Use devres to allocate all of the resources in caam_jr_init() (DMA
coherent and regular memory, IRQs) drop calls to corresponding
deallocation routines. No functional change intended.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
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: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
drivers/crypto/caam/jr.c | 48 ++++++++++++----------------------------
1 file changed, 14 insertions(+), 34 deletions(-)

diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index 4b25b2fa3d02..ea02f7774f7c 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;
}

@@ -444,8 +431,8 @@ static int caam_jr_init(struct device *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);
+ 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);
@@ -454,22 +441,25 @@ static int caam_jr_init(struct device *dev)

error = caam_reset_hw_jr(dev);
if (error)
- goto out_free_irq;
+ goto out_kill_deq;

error = -ENOMEM;
- jrp->inpring = dma_alloc_coherent(dev, sizeof(*jrp->inpring) *
- JOBR_DEPTH, &inpbusaddr, GFP_KERNEL);
+ jrp->inpring = dmam_alloc_coherent(dev, sizeof(*jrp->inpring) *
+ JOBR_DEPTH, &inpbusaddr,
+ GFP_KERNEL);
if (!jrp->inpring)
- goto out_free_irq;
+ goto out_kill_deq;

- jrp->outring = dma_alloc_coherent(dev, sizeof(*jrp->outring) *
- JOBR_DEPTH, &outbusaddr, GFP_KERNEL);
+ jrp->outring = dmam_alloc_coherent(dev, sizeof(*jrp->outring) *
+ JOBR_DEPTH, &outbusaddr,
+ GFP_KERNEL);
if (!jrp->outring)
- goto out_free_inpring;
+ goto out_kill_deq;

- 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;
+ goto out_kill_deq;

for (i = 0; i < JOBR_DEPTH; i++)
jrp->entinfo[i].desc_addr_dma = !0;
@@ -494,16 +484,6 @@ static int caam_jr_init(struct device *dev)
(JOBR_INTC_TIME_THLD << JRCFG_ICTT_SHIFT));

return 0;
-
-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;
--
2.21.0
\
 
 \ /
  Last update: 2019-08-20 22:27    [W:0.160 / U:1.712 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site