lkml.org 
[lkml]   [2019]   [Jul]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 5/7] soc/fsl/qbman: Disable interrupts during portal recovery
Date
Disable the QBMan interrupts during recovery.

Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
---
drivers/soc/fsl/qbman/qman.c | 22 +++++++++++++++++++---
drivers/soc/fsl/qbman/qman_ccsr.c | 1 +
drivers/soc/fsl/qbman/qman_priv.h | 1 +
3 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/drivers/soc/fsl/qbman/qman.c b/drivers/soc/fsl/qbman/qman.c
index 2989504..4a99ce5 100644
--- a/drivers/soc/fsl/qbman/qman.c
+++ b/drivers/soc/fsl/qbman/qman.c
@@ -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;
diff --git a/drivers/soc/fsl/qbman/qman_ccsr.c b/drivers/soc/fsl/qbman/qman_ccsr.c
index fcf77e0..8d17643 100644
--- a/drivers/soc/fsl/qbman/qman_ccsr.c
+++ b/drivers/soc/fsl/qbman/qman_ccsr.c
@@ -735,6 +735,7 @@ int qman_requires_cleanup(void)

void qman_done_cleanup(void)
{
+ qman_enable_irqs();
__qman_requires_cleanup = 0;
}

diff --git a/drivers/soc/fsl/qbman/qman_priv.h b/drivers/soc/fsl/qbman/qman_priv.h
index a8a35fe..fd1cf54 100644
--- a/drivers/soc/fsl/qbman/qman_priv.h
+++ b/drivers/soc/fsl/qbman/qman_priv.h
@@ -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);
--
2.7.4
\
 
 \ /
  Last update: 2019-07-03 23:00    [W:0.047 / U:1.224 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site