diff options
author | Paul Burton <paul.burton@imgtec.com> | 2017-08-12 21:36:17 -0700 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2017-09-04 13:53:14 +0200 |
commit | a0dc5cb5e31bdbcf1f1dddf62a62d06d6b82d53a (patch) | |
tree | b817e27c8c0c7277e8099df13f1cb0e72184563d /drivers/irqchip/irq-mips-gic.c | |
parent | e98fcb2a8cc003c37c24713d2303667a8f624a30 (diff) | |
download | linux-a0dc5cb5e31bdbcf1f1dddf62a62d06d6b82d53a.tar.bz2 |
irqchip: mips-gic: Simplify gic_local_irq_domain_map()
Simplify gic_local_irq_domain_map() by:
- Moving the check for invalid IRQs outside of the loop.
- Moving the decision about whether to use gic_cpu_pin or timer_cpu_pin
outside of the loop.
- Using the new write_gic_vo_map() accessor function to avoid the need
to handle each map register separately.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/17027/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'drivers/irqchip/irq-mips-gic.c')
-rw-r--r-- | drivers/irqchip/irq-mips-gic.c | 57 |
1 files changed, 16 insertions, 41 deletions
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c index 7445c3b58c44..4b6c4e55562d 100644 --- a/drivers/irqchip/irq-mips-gic.c +++ b/drivers/irqchip/irq-mips-gic.c @@ -498,58 +498,33 @@ static int gic_local_irq_domain_map(struct irq_domain *d, unsigned int virq, irq_hw_number_t hw) { int intr = GIC_HWIRQ_TO_LOCAL(hw); - int ret = 0; int i; unsigned long flags; + u32 val; if (!gic_local_irq_is_routable(intr)) return -EPERM; - spin_lock_irqsave(&gic_lock, flags); - for (i = 0; i < gic_vpes; i++) { - u32 val = GIC_MAP_TO_PIN_MSK | gic_cpu_pin; + if (intr > GIC_LOCAL_INT_FDC) { + pr_err("Invalid local IRQ %d\n", intr); + return -EINVAL; + } - gic_write(GIC_REG(VPE_LOCAL, GIC_VPE_OTHER_ADDR), - mips_cm_vp_id(i)); + if (intr == GIC_LOCAL_INT_TIMER) { + /* CONFIG_MIPS_CMP workaround (see __gic_init) */ + val = GIC_MAP_PIN_MAP_TO_PIN | timer_cpu_pin; + } else { + val = GIC_MAP_PIN_MAP_TO_PIN | gic_cpu_pin; + } - switch (intr) { - case GIC_LOCAL_INT_WD: - gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_WD_MAP), val); - break; - case GIC_LOCAL_INT_COMPARE: - gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_COMPARE_MAP), - val); - break; - case GIC_LOCAL_INT_TIMER: - /* CONFIG_MIPS_CMP workaround (see __gic_init) */ - val = GIC_MAP_TO_PIN_MSK | timer_cpu_pin; - gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_TIMER_MAP), - val); - break; - case GIC_LOCAL_INT_PERFCTR: - gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_PERFCTR_MAP), - val); - break; - case GIC_LOCAL_INT_SWINT0: - gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_SWINT0_MAP), - val); - break; - case GIC_LOCAL_INT_SWINT1: - gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_SWINT1_MAP), - val); - break; - case GIC_LOCAL_INT_FDC: - gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_FDC_MAP), val); - break; - default: - pr_err("Invalid local IRQ %d\n", intr); - ret = -EINVAL; - break; - } + spin_lock_irqsave(&gic_lock, flags); + for (i = 0; i < gic_vpes; i++) { + write_gic_vl_other(mips_cm_vp_id(i)); + write_gic_vo_map(intr, val); } spin_unlock_irqrestore(&gic_lock, flags); - return ret; + return 0; } static int gic_shared_irq_domain_map(struct irq_domain *d, unsigned int virq, |