xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

MIPS: Add new GIC clockevent driver.

Browse Source 
Add new clockevent driver that uses the counter present on the MIPS
Global Interrupt Controller.

Signed-off-by: Raghu Gandham <Raghu.Gandham@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
This commit is contained in:
Raghu Gandham
2013-04-10 16:30:12 -05:00
committed by Ralf Baechle
parent 2675fa7c7b
commit 0ab2b7d08e
8 changed files with 163 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
arch/mips/kernel/irq-gic.c
View File

@@ -33,7 +33,7 @@ static struct gic_pcpu_mask pcpu_masks[NR_CPUS];
static struct gic_pending_regs pending_regs[NR_CPUS];
static struct gic_intrmask_regs intrmask_regs[NR_CPUS];
#ifdef CONFIG_CSRC_GIC
#if defined(CONFIG_CSRC_GIC) || defined(CONFIG_CEVT_GIC)
cycle_t gic_read_count(void)
{
unsigned int hi, hi2, lo;
@@ -46,6 +46,24 @@ cycle_t gic_read_count(void)
return (((cycle_t) hi) << 32) + lo;
}
void gic_write_compare(cycle_t cnt)
{
GICWRITE(GIC_REG(VPE_LOCAL, GIC_VPE_COMPARE_HI),
(int)(cnt >> 32));
GICWRITE(GIC_REG(VPE_LOCAL, GIC_VPE_COMPARE_LO),
(int)(cnt & 0xffffffff));
}
cycle_t gic_read_compare(void)
{
unsigned int hi, lo;
GICREAD(GIC_REG(VPE_LOCAL, GIC_VPE_COMPARE_HI), hi);
GICREAD(GIC_REG(VPE_LOCAL, GIC_VPE_COMPARE_LO), lo);
return (((cycle_t) hi) << 32) + lo;
}
#endif
unsigned int gic_get_timer_pending(void)
@@ -134,6 +152,17 @@ static void __init vpe_local_setup(unsigned int numvpes)
}
}
unsigned int gic_compare_int(void)
{
unsigned int pending;
GICREAD(GIC_REG(VPE_LOCAL, GIC_VPE_PEND), pending);
if (pending & GIC_VPE_PEND_CMP_MSK)
return 1;
else
return 0;
}
unsigned int gic_get_int(void)
{
unsigned int i;