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| author | Marc Zyngier <maz@kernel.org> | 2021-09-22 14:19:41 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-09-22 14:24:49 +0100 |
| commit | 2a7313dc81e88adc7bb09d0f056985fa8afc2b89 (patch) | |
| tree | 13f9e1d9fc74a0eb020b0cf11f468bfcef6a3622 /drivers | |
| parent | 0ddc5e55e6f1da1286fb2646f4248bf7da31a601 (diff) | |
| download | linux-stable-2a7313dc81e88adc7bb09d0f056985fa8afc2b89.tar.gz linux-stable-2a7313dc81e88adc7bb09d0f056985fa8afc2b89.tar.bz2 linux-stable-2a7313dc81e88adc7bb09d0f056985fa8afc2b89.zip | |
irqchip/armada-370-xp: Fix ack/eoi breakage
When converting the driver to using handle_percpu_devid_irq,
we forgot to repaint the irq_eoi() callback into irq_ack(),
as handle_percpu_devid_fasteoi_ipi() was actually using EOI
really early in the handling. Yes this was a stupid idea.
Fix this by using the HW ack method as irq_ack().
Fixes: e52e73b7e9f7 ("irqchip/armada-370-xp: Make IPIs use handle_percpu_devid_irq()")
Reported-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Tested-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: Valentin Schneider <valentin.schneider@arm.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/87tuiexq5f.fsf@pengutronix.de
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/irqchip/irq-armada-370-xp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c index 7557ab551295..53e0fb0562c1 100644 --- a/drivers/irqchip/irq-armada-370-xp.c +++ b/drivers/irqchip/irq-armada-370-xp.c @@ -359,16 +359,16 @@ static void armada_370_xp_ipi_send_mask(struct irq_data *d, ARMADA_370_XP_SW_TRIG_INT_OFFS); } -static void armada_370_xp_ipi_eoi(struct irq_data *d) +static void armada_370_xp_ipi_ack(struct irq_data *d) { writel(~BIT(d->hwirq), per_cpu_int_base + ARMADA_370_XP_IN_DRBEL_CAUSE_OFFS); } static struct irq_chip ipi_irqchip = { .name = "IPI", + .irq_ack = armada_370_xp_ipi_ack, .irq_mask = armada_370_xp_ipi_mask, .irq_unmask = armada_370_xp_ipi_unmask, - .irq_eoi = armada_370_xp_ipi_eoi, .ipi_send_mask = armada_370_xp_ipi_send_mask, }; |