diff options
Diffstat (limited to 'drivers/irqchip/irq-gic.c')
| -rw-r--r-- | drivers/irqchip/irq-gic.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index 121af5cf688f..79801c24800b 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -453,15 +453,26 @@ static u8 gic_get_cpumask(struct gic_chip_data *gic) return mask; } +static bool gic_check_gicv2(void __iomem *base) +{ + u32 val = readl_relaxed(base + GIC_CPU_IDENT); + return (val & 0xff0fff) == 0x02043B; +} + static void gic_cpu_if_up(struct gic_chip_data *gic) { void __iomem *cpu_base = gic_data_cpu_base(gic); u32 bypass = 0; u32 mode = 0; + int i; if (gic == &gic_data[0] && static_key_true(&supports_deactivate)) mode = GIC_CPU_CTRL_EOImodeNS; + if (gic_check_gicv2(cpu_base)) + for (i = 0; i < 4; i++) + writel_relaxed(0, cpu_base + GIC_CPU_ACTIVEPRIO + i * 4); + /* * Preserve bypass disable bits to be written back later */ @@ -1264,12 +1275,6 @@ static int __init gicv2_force_probe_cfg(char *buf) } early_param("irqchip.gicv2_force_probe", gicv2_force_probe_cfg); -static bool gic_check_gicv2(void __iomem *base) -{ - u32 val = readl_relaxed(base + GIC_CPU_IDENT); - return (val & 0xff0fff) == 0x02043B; -} - static bool gic_check_eoimode(struct device_node *node, void __iomem **base) { struct resource cpuif_res; |