diff options
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/caam/jr.c | 30 |
1 files changed, 13 insertions, 17 deletions
diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c index 9f16b2c0361..11d93f24370 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" @@ -58,9 +58,8 @@ static void caam_jr_dequeue(unsigned long devarg) void (*usercall)(struct device *dev, u32 *desc, u32 status, void *arg); u32 *userdesc, userstatus; void *userarg; - unsigned long flags; - spin_lock_irqsave(&jrp->outlock, flags); + spin_lock_bh(&jrp->outlock); head = ACCESS_ONCE(jrp->head); sw_idx = tail = jrp->tail; @@ -118,18 +117,18 @@ static void caam_jr_dequeue(unsigned long devarg) /* set done */ wr_reg32(&jrp->rregs->outring_rmvd, 1); - spin_unlock_irqrestore(&jrp->outlock, flags); + spin_unlock_bh(&jrp->outlock); /* Finally, execute user's callback */ usercall(dev, userdesc, userstatus, userarg); - spin_lock_irqsave(&jrp->outlock, flags); + spin_lock_bh(&jrp->outlock); head = ACCESS_ONCE(jrp->head); sw_idx = tail = jrp->tail; } - spin_unlock_irqrestore(&jrp->outlock, flags); + spin_unlock_bh(&jrp->outlock); /* reenable / unmask IRQs */ clrbits32(&jrp->rregs->rconfig_lo, JRCFG_IMSK); @@ -148,23 +147,22 @@ int caam_jr_register(struct device *ctrldev, struct device **rdev) { struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctrldev); struct caam_drv_private_jr *jrpriv = NULL; - unsigned long flags; int ring; /* Lock, if free ring - assign, unlock */ - spin_lock_irqsave(&ctrlpriv->jr_alloc_lock, flags); + spin_lock(&ctrlpriv->jr_alloc_lock); for (ring = 0; ring < ctrlpriv->total_jobrs; ring++) { jrpriv = dev_get_drvdata(ctrlpriv->jrdev[ring]); if (jrpriv->assign == JOBR_UNASSIGNED) { jrpriv->assign = JOBR_ASSIGNED; *rdev = ctrlpriv->jrdev[ring]; - spin_unlock_irqrestore(&ctrlpriv->jr_alloc_lock, flags); + spin_unlock(&ctrlpriv->jr_alloc_lock); return ring; } } /* If assigned, write dev where caller needs it */ - spin_unlock_irqrestore(&ctrlpriv->jr_alloc_lock, flags); + spin_unlock(&ctrlpriv->jr_alloc_lock); *rdev = NULL; return -ENODEV; @@ -182,7 +180,6 @@ int caam_jr_deregister(struct device *rdev) { struct caam_drv_private_jr *jrpriv = dev_get_drvdata(rdev); struct caam_drv_private *ctrlpriv; - unsigned long flags; /* Get the owning controller's private space */ ctrlpriv = dev_get_drvdata(jrpriv->parentdev); @@ -195,9 +192,9 @@ int caam_jr_deregister(struct device *rdev) return -EBUSY; /* Release ring */ - spin_lock_irqsave(&ctrlpriv->jr_alloc_lock, flags); + spin_lock(&ctrlpriv->jr_alloc_lock); jrpriv->assign = JOBR_UNASSIGNED; - spin_unlock_irqrestore(&ctrlpriv->jr_alloc_lock, flags); + spin_unlock(&ctrlpriv->jr_alloc_lock); return 0; } @@ -238,7 +235,6 @@ int caam_jr_enqueue(struct device *dev, u32 *desc, { struct caam_drv_private_jr *jrp = dev_get_drvdata(dev); struct caam_jrentry_info *head_entry; - unsigned long flags; int head, tail, desc_size; dma_addr_t desc_dma; @@ -249,14 +245,14 @@ int caam_jr_enqueue(struct device *dev, u32 *desc, return -EIO; } - spin_lock_irqsave(&jrp->inplock, flags); + spin_lock(&jrp->inplock); head = jrp->head; tail = ACCESS_ONCE(jrp->tail); if (!rd_reg32(&jrp->rregs->inpring_avail) || CIRC_SPACE(head, tail, JOBR_DEPTH) <= 0) { - spin_unlock_irqrestore(&jrp->inplock, flags); + spin_unlock(&jrp->inplock); dma_unmap_single(dev, desc_dma, desc_size, DMA_TO_DEVICE); return -EBUSY; } @@ -280,7 +276,7 @@ int caam_jr_enqueue(struct device *dev, u32 *desc, wr_reg32(&jrp->rregs->inpring_jobadd, 1); - spin_unlock_irqrestore(&jrp->inplock, flags); + spin_unlock(&jrp->inplock); return 0; } |