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soc/fsl/qbman: Disable interrupts during portal recovery 

Disable the QBMan interrupts during recovery.

Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
This commit is contained in:
Roy Pledge 2019-08-01 20:17:01 +00:00 committed by Li Yang
parent 627da8bad5
commit ea2b8488ba
3 changed files with 21 additions and 3 deletions
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22
drivers/soc/fsl/qbman/qman.c
View File

@ -1070,6 +1070,20 @@ int qman_wq_alloc(void)
return 0;
}
void qman_enable_irqs(void)
{
int i;
for (i = 0; i < num_possible_cpus(); i++) {
if (affine_portals[i]) {
qm_out(&affine_portals[i]->p, QM_REG_ISR, 0xffffffff);
qm_out(&affine_portals[i]->p, QM_REG_IIR, 0);
}
}
}
/*
* This is what everything can wait on, even if it migrates to a different cpu
* to the one whose affine portal it is waiting on.
@ -1269,8 +1283,8 @@ static int qman_create_portal(struct qman_portal *portal,
qm_out(p, QM_REG_ISDR, isdr);
portal->irq_sources = 0;
qm_out(p, QM_REG_IER, 0);
qm_out(p, QM_REG_ISR, 0xffffffff);
snprintf(portal->irqname, MAX_IRQNAME, IRQNAME, c->cpu);
qm_out(p, QM_REG_IIR, 1);
if (request_irq(c->irq, portal_isr, 0, portal->irqname, portal)) {
dev_err(c->dev, "request_irq() failed\n");
goto fail_irq;
@ -1290,7 +1304,7 @@ static int qman_create_portal(struct qman_portal *portal,
isdr &= ~(QM_PIRQ_DQRI | QM_PIRQ_MRI);
qm_out(p, QM_REG_ISDR, isdr);
if (qm_dqrr_current(p)) {
dev_err(c->dev, "DQRR unclean\n");
dev_dbg(c->dev, "DQRR unclean\n");
qm_dqrr_cdc_consume_n(p, 0xffff);
}
if (qm_mr_current(p) && drain_mr_fqrni(p)) {
@ -1303,8 +1317,10 @@ static int qman_create_portal(struct qman_portal *portal,
}
/* Success */
portal->config = c;
qm_out(p, QM_REG_ISR, 0xffffffff);
qm_out(p, QM_REG_ISDR, 0);
qm_out(p, QM_REG_IIR, 0);
if (!qman_requires_cleanup())
qm_out(p, QM_REG_IIR, 0);
/* Write a sane SDQCR */
qm_dqrr_sdqcr_set(p, portal->sdqcr);
return 0;

1
drivers/soc/fsl/qbman/qman_ccsr.c
View File

@ -744,6 +744,7 @@ int qman_requires_cleanup(void)
void qman_done_cleanup(void)
{
qman_enable_irqs();
__qman_requires_cleanup = 0;
}

1
drivers/soc/fsl/qbman/qman_priv.h
View File

@ -279,3 +279,4 @@ int qman_shutdown_fq(u32 fqid);
int qman_requires_cleanup(void);
void qman_done_cleanup(void);
void qman_enable_irqs(void);