From 13d22e2e1f35f2d3cc7ddc002c23e733c2782dd4 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Tue, 16 Jul 2019 14:35:17 +0100 Subject: irqchip/gic: Rework gic_configure_irq to take the full ICFGR base gic_configure_irq is currently passed the (re)distributor address, to which it applies an a fixed offset to get to the configuration registers. This offset is constant across all GICs, or rather it was until to v3.1... An easy way out is for the individual drivers to pass the base address of the configuration register for the considered interrupt. At the same time, move part of the error handling back to the individual drivers, as things are about to change on that front. Signed-off-by: Marc Zyngier --- drivers/irqchip/irq-gic-common.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) (limited to 'drivers/irqchip/irq-gic-common.c') diff --git a/drivers/irqchip/irq-gic-common.c b/drivers/irqchip/irq-gic-common.c index b0a8215a13fc..6900b6f0921c 100644 --- a/drivers/irqchip/irq-gic-common.c +++ b/drivers/irqchip/irq-gic-common.c @@ -63,7 +63,7 @@ int gic_configure_irq(unsigned int irq, unsigned int type, * for "irq", depending on "type". */ raw_spin_lock_irqsave(&irq_controller_lock, flags); - val = oldval = readl_relaxed(base + GIC_DIST_CONFIG + confoff); + val = oldval = readl_relaxed(base + confoff); if (type & IRQ_TYPE_LEVEL_MASK) val &= ~confmask; else if (type & IRQ_TYPE_EDGE_BOTH) @@ -83,14 +83,10 @@ int gic_configure_irq(unsigned int irq, unsigned int type, * does not allow us to set the configuration or we are in a * non-secure mode, and hence it may not be catastrophic. */ - writel_relaxed(val, base + GIC_DIST_CONFIG + confoff); - if (readl_relaxed(base + GIC_DIST_CONFIG + confoff) != val) { - if (WARN_ON(irq >= 32)) - ret = -EINVAL; - else - pr_warn("GIC: PPI%d is secure or misconfigured\n", - irq - 16); - } + writel_relaxed(val, base + confoff); + if (readl_relaxed(base + confoff) != val) + ret = -EINVAL; + raw_spin_unlock_irqrestore(&irq_controller_lock, flags); if (sync_access) -- cgit v1.2.3-59-g8ed1b