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crypto: caam/qi - fix address translations with IOMMU enabled

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When IOMMU is enabled, iova -> phys address translation should be
performed using iommu_ops, not dma_to_phys().

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Horia Geantă 2019-05-03 17:17:41 +03:00 committed by Herbert Xu
parent 6b175685b4
commit b2b2ee350e
3 changed files with 17 additions and 2 deletions
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1
drivers/crypto/caam/ctrl.c
View File

@ -702,6 +702,7 @@ static int caam_probe(struct platform_device *pdev)
}
ctrlpriv->era = caam_get_era(ctrl);
ctrlpriv->domain = iommu_get_domain_for_dev(dev);
#ifdef CONFIG_DEBUG_FS
/*

2
drivers/crypto/caam/intern.h
View File

@ -70,6 +70,8 @@ struct caam_drv_private {
struct caam_queue_if __iomem *qi; /* QI control region */
struct caam_job_ring __iomem *jr[4]; /* JobR's register space */
struct iommu_domain *domain;
/*
* Detected geometry block. Filled in from device tree if powerpc,
* or from register-based version detection code

16
drivers/crypto/caam/qi.c
View File

@ -94,6 +94,16 @@ static u64 times_congested;
*/
static struct kmem_cache *qi_cache;
static void *caam_iova_to_virt(struct iommu_domain *domain,
dma_addr_t iova_addr)
{
phys_addr_t phys_addr;
phys_addr = domain ? iommu_iova_to_phys(domain, iova_addr) : iova_addr;
return phys_to_virt(phys_addr);
}
int caam_qi_enqueue(struct device *qidev, struct caam_drv_req *req)
{
struct qm_fd fd;
@ -134,6 +144,7 @@ static void caam_fq_ern_cb(struct qman_portal *qm, struct qman_fq *fq,
const struct qm_fd *fd;
struct caam_drv_req *drv_req;
struct device *qidev = &(raw_cpu_ptr(&pcpu_qipriv)->net_dev.dev);
struct caam_drv_private *priv = dev_get_drvdata(qidev);
fd = &msg->ern.fd;
@ -142,7 +153,7 @@ static void caam_fq_ern_cb(struct qman_portal *qm, struct qman_fq *fq,
return;
}
drv_req = (struct caam_drv_req *)phys_to_virt(qm_fd_addr_get64(fd));
drv_req = caam_iova_to_virt(priv->domain, qm_fd_addr_get64(fd));
if (!drv_req) {
dev_err(qidev,
"Can't find original request for CAAM response\n");
@ -549,6 +560,7 @@ static enum qman_cb_dqrr_result caam_rsp_fq_dqrr_cb(struct qman_portal *p,
struct caam_drv_req *drv_req;
const struct qm_fd *fd;
struct device *qidev = &(raw_cpu_ptr(&pcpu_qipriv)->net_dev.dev);
struct caam_drv_private *priv = dev_get_drvdata(qidev);
u32 status;
if (caam_qi_napi_schedule(p, caam_napi))
@ -571,7 +583,7 @@ static enum qman_cb_dqrr_result caam_rsp_fq_dqrr_cb(struct qman_portal *p,
return qman_cb_dqrr_consume;
}
drv_req = (struct caam_drv_req *)phys_to_virt(qm_fd_addr_get64(fd));
drv_req = caam_iova_to_virt(priv->domain, qm_fd_addr_get64(fd));
if (unlikely(!drv_req)) {
dev_err(qidev,
"Can't find original request for caam response\n");