iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

crypto: hisilicon/qm - use request_threaded_irq instead

Browse Source 
The abnormal interrupt method needs to be changed, and the changed method
needs to be locked in order to maintain atomicity. Therefore,
replace request_irq() with request_threaded_irq().

Signed-off-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Weili Qian 2021-12-11 19:25:17 +08:00 committed by Herbert Xu
parent 145dcedd0e
commit a0a9486beb
1 changed files with 16 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/crypto/hisilicon/qm.c
View File

@ -988,16 +988,12 @@ static void qm_set_qp_disable(struct hisi_qp *qp, int offset)
mb();
}
static irqreturn_t qm_aeq_irq(int irq, void *data)
static irqreturn_t qm_aeq_thread(int irq, void *data)
{
struct hisi_qm *qm = data;
struct qm_aeqe *aeqe = qm->aeqe + qm->status.aeq_head;
u32 type;
atomic64_inc(&qm->debug.dfx.aeq_irq_cnt);
if (!readl(qm->io_base + QM_VF_AEQ_INT_SOURCE))
return IRQ_NONE;
while (QM_AEQE_PHASE(aeqe) == qm->status.aeqc_phase) {
type = le32_to_cpu(aeqe->dw0) >> QM_AEQE_TYPE_SHIFT;
if (type < ARRAY_SIZE(qm_fifo_overflow))
@ -1022,6 +1018,17 @@ static irqreturn_t qm_aeq_irq(int irq, void *data)
return IRQ_HANDLED;
}
static irqreturn_t qm_aeq_irq(int irq, void *data)
{
struct hisi_qm *qm = data;
atomic64_inc(&qm->debug.dfx.aeq_irq_cnt);
if (!readl(qm->io_base + QM_VF_AEQ_INT_SOURCE))
return IRQ_NONE;
return IRQ_WAKE_THREAD;
}
static void qm_irq_unregister(struct hisi_qm *qm)
{
struct pci_dev *pdev = qm->pdev;
@ -5299,8 +5306,10 @@ static int qm_irq_register(struct hisi_qm *qm)
return ret;
if (qm->ver > QM_HW_V1) {
ret = request_irq(pci_irq_vector(pdev, QM_AEQ_EVENT_IRQ_VECTOR),
qm_aeq_irq, 0, qm->dev_name, qm);
ret = request_threaded_irq(pci_irq_vector(pdev,
QM_AEQ_EVENT_IRQ_VECTOR),
qm_aeq_irq, qm_aeq_thread,
0, qm->dev_name, qm);
if (ret)
goto err_aeq_irq;