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baremetal aarch64: timer.c get closer to working

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Ciro Santilli 六四事件 法轮功
2019-06-16 00:00:02 +00:00
parent b3874cc72b
commit 89084d2332
5 changed files with 60 additions and 36 deletions
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12
lkmc/gicv3.h
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@@ -7,7 +7,7 @@
typedef int32_t irq_no;
#define GIC_GICD_BASE (GIC_BASE)
#define GIC_GICC_BASE (GIC_BASE + 0xa0000)
#define GIC_GICC_BASE (GIC_BASE + 0x10000)
#define GIC_GICD_INT_PER_REG (32)
#define GIC_GICD_IPRIORITY_PER_REG (4)
@@ -135,9 +135,11 @@ static void init_gicc(void) {
*REG_GIC_GICC_BPR = GICC_BPR_NO_GROUP;
/* Clear all of the active interrupts */
for(pending_irq = ( *REG_GIC_GICC_IAR & GICC_IAR_INTR_IDMASK );
( pending_irq != GICC_IAR_SPURIOUS_INTR );
pending_irq = ( *REG_GIC_GICC_IAR & GICC_IAR_INTR_IDMASK ) )
for (
pending_irq = (*REG_GIC_GICC_IAR & GICC_IAR_INTR_IDMASK);
pending_irq != GICC_IAR_SPURIOUS_INTR;
pending_irq = (*REG_GIC_GICC_IAR & GICC_IAR_INTR_IDMASK)
)
*REG_GIC_GICC_EOIR = *REG_GIC_GICC_IAR;
/* Enable CPU interface */
@@ -215,7 +217,6 @@ static int gicd_probe_pending(irq_no irq) {
is_pending = ( *REG_GIC_GICD_ISPENDR( (irq / GIC_GICD_ISPENDR_PER_REG) ) &
( 1U << ( irq % GIC_GICD_ISPENDR_PER_REG ) ) );
return ( is_pending != 0 );
}
@@ -232,7 +233,6 @@ static void gicd_set_target(irq_no irq, uint32_t p){
uint32_t reg;
shift = (irq % GIC_GICD_ITARGETSR_PER_REG) * GIC_GICD_ITARGETSR_SIZE_PER_REG;
reg = *REG_GIC_GICD_ITARGETSR(irq / GIC_GICD_ITARGETSR_PER_REG);
reg &= ~( ((uint32_t)(0xff)) << shift);
reg |= (p << shift);