diff options
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-mips-gic.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c index e49a39a..b5fad63 100644 --- a/drivers/irqchip/irq-mips-gic.c +++ b/drivers/irqchip/irq-mips-gic.c @@ -63,6 +63,17 @@ cycle_t gic_read_count(void) return (((cycle_t) hi) << 32) + lo; } +unsigned int gic_get_count_width(void) +{ + unsigned int bits, config; + + GICREAD(GIC_REG(SHARED, GIC_SH_CONFIG), config); + bits = 32 + 4 * ((config & GIC_SH_CONFIG_COUNTBITS_MSK) >> + GIC_SH_CONFIG_COUNTBITS_SHF); + + return bits; +} + void gic_write_compare(cycle_t cnt) { GICWRITE(GIC_REG(VPE_LOCAL, GIC_VPE_COMPARE_HI), |
