| /trunk/kernel/arch/ia64/include/bootinfo.h |
|---|
| 48,6 → 48,8 |
| binit_t taskmap; |
| unsigned long * sapic; |
| unsigned long sys_freq; |
| unsigned long freq_scale; |
| unsigned int wakeup_intno; |
| } bootinfo_t; |
| /trunk/kernel/arch/ia64/include/drivers/it.h |
|---|
| 41,7 → 41,7 |
| * from firmware. |
| * |
| */ |
| #define IT_DELTA 100000 |
| #define IT_DELTA it_delta |
| extern void it_init(void); |
| /trunk/kernel/arch/ia64/src/drivers/it.c |
|---|
| 46,6 → 46,16 |
| #define IT_SERVICE_CLOCKS 64 |
| #define FREQ_NUMERATOR_SHIFT 32 |
| #define FREQ_NUMERATOR_MASK 0xffffffff00000000LL |
| #define FREQ_DENOMINATOR_SHIFT 0 |
| #define FREQ_DENOMINATOR_MASK 0xffffffffLL |
| uint64_t it_delta; |
| static irq_t it_irq; |
| static irq_ownership_t it_claim(void); |
| 64,6 → 74,14 |
| it_irq.claim = it_claim; |
| it_irq.handler = it_interrupt; |
| irq_register(&it_irq); |
| uint64_t base_freq; |
| base_freq = ((bootinfo->freq_scale) & FREQ_NUMERATOR_MASK) >> FREQ_NUMERATOR_SHIFT; |
| base_freq *= bootinfo->sys_freq; |
| base_freq /= ((bootinfo->freq_scale) & FREQ_DENOMINATOR_MASK) >> FREQ_DENOMINATOR_SHIFT; |
| it_delta = base_freq /HZ; |
| } |
| /* initialize Interval Timer external interrupt vector */ |
| /trunk/boot/arch/ia64/loader/gefi/HelenOS/hello.c |
|---|
| 153,21 → 153,34 |
| rArg rSAL; |
| rArg rPAL; |
| //Setup AP's wake up address |
| LibSalProc(0x01000000,2,0x4400200,0,0,0,0,0,&rSAL); |
| //Get System Frequency |
| UINT64 sys_freq; |
| LibSalProc(0x01000012,0,0,0,0,0,0,0,&rSAL); |
| sys_freq=rSAL.p1; |
| UINT64 freq_scale; |
| //Get CPU Frequency to System Frequency ratio |
| LibPalProc(14,0,0,0,&rPAL); |
| freq_scale=rPAL.p1; |
| UINT64 sapic; |
| LibGetSalIpiBlock(&sapic); |
| Print (L"SAPIC:%X\n", sapic); |
| bootinfo->sapic=sapic; |
| //bootinfo->sapic=sapic; |
| int wakeup_intno; |
| wakeup_intno=0xf0; |
| Print (L"WAKEUP INTNO:%X\n", wakeup_intno); |
| bootinfo->wakeup_intno=wakeup_intno; |
| //bootinfo->wakeup_intno=wakeup_intno; |
| 212,6 → 225,8 |
| } |
| bootinfo->sapic=(unsigned long *)sapic; |
| bootinfo->wakeup_intno=wakeup_intno; |
| bootinfo->sys_freq=sys_freq; |
| bootinfo->freq_scale=freq_scale; |
| //Run Kernel |
| asm volatile( |