To be able to unify this function we RE-introduce APIC_DIVISOR for 64bit mode. This snipped was eliminated in some time ago in a sake of clenup but now we need it again since it allow up to get rid of #ifdef(s). And lapic_is_integrated call is added in apic_64.c but since we always have APIC integrated on 64bit cpu compiler will ignore this call. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> --- diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c index 1e0b5d9..5d07689 100644 --- a/arch/x86/kernel/apic_64.c +++ b/arch/x86/kernel/apic_64.c @@ -244,6 +244,9 @@ int lapic_get_maxlvt(void) return APIC_INTEGRATED(GET_APIC_VERSION(v)) ? GET_APIC_MAXLVT(v) : 2; } +/* Clock divisor is set to 1 */ +#define APIC_DIVISOR 1 + /* * This function sets up the local APIC timer, with a timeout of * 'clocks' APIC bus clock. During calibration we actually call @@ -262,6 +265,9 @@ static void __setup_APIC_LVTT(unsigned int clocks, int oneshot, int irqen) lvtt_value = LOCAL_TIMER_VECTOR; if (!oneshot) lvtt_value |= APIC_LVT_TIMER_PERIODIC; + if (!lapic_is_integrated()) + lvtt_value |= SET_APIC_TIMER_BASE(APIC_TIMER_BASE_DIV); + if (!irqen) lvtt_value |= APIC_LVT_MASKED; @@ -276,7 +282,7 @@ static void __setup_APIC_LVTT(unsigned int clocks, int oneshot, int irqen) | APIC_TDR_DIV_16); if (!oneshot) - apic_write(APIC_TMICT, clocks); + apic_write(APIC_TMICT, clocks / APIC_DIVISOR); } /* @@ -450,7 +456,7 @@ static int __init calibrate_APIC_clock(void) lapic_clockevent.min_delta_ns = clockevent_delta2ns(0xF, &lapic_clockevent); - calibration_result = result / HZ; + calibration_result = (result * APIC_DIVISOR) / HZ; /* * Do a sanity check on the APIC calibration result -- --
| Greg Kroah-Hartman | [PATCH 006/196] Chinese: add translation of oops-tracing.txt |
| Linus Torvalds | Linux 2.6.21-rc1 |
| david | Re: Dual-Licensing Linux Kernel with GPL V2 and GPL V3 |
| Vladislav Bolkhovitin | Re: Integration of SCST in the mainstream Linux kernel |
| Alexey Dobriyan | Re: [GIT]: Networking |
| Gerrit Renker | [PATCH 27/37] dccp: Integration of dynamic feature activation - part 2 (server side) |
| Jarek Poplawski | Re: [PATCH] pkt_sched: Destroy gen estimators under rtnl_lock(). |
| Evgeniy Polyakov | Re: [BUG] New Kernel Bugs |
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