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x86/apic: Use lapic_is_integrated() consistently

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lapic_is_integrated() is a wrapper around APIC_INTEGRATED(), but not used
consistently.

Replace the direct usage of APIC_INTEGRATED() and fixup a hard to read tail
comment. No functional change.

[ tglx: Made it compile and work .... ]

Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: bhe@redhat.com
Link: https://lkml.kernel.org/r/1504774161-7137-2-git-send-email-douly.fnst@cn.fujitsu.com
This commit is contained in:
Dou Liyang 2017-09-07 16:49:21 +08:00 committed by Thomas Gleixner
parent e3cccbce14
commit ae41a2a40e
1 changed files with 4 additions and 5 deletions
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9
arch/x86/kernel/apic/apic.c
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@ -294,14 +294,11 @@ int get_physical_broadcast(void)
*/
int lapic_get_maxlvt(void)
{
unsigned int v;
v = apic_read(APIC_LVR);
/*
* - we always have APIC integrated on 64bit mode
* - 82489DXs do not report # of LVT entries
*/
return APIC_INTEGRATED(GET_APIC_VERSION(v)) ? GET_APIC_MAXLVT(v) : 2;
return lapic_is_integrated() ? GET_APIC_MAXLVT(apic_read(APIC_LVR)) : 2;
}
/*
@ -1531,7 +1528,9 @@ void setup_local_APIC(void)
value = APIC_DM_NMI;
else
value = APIC_DM_NMI | APIC_LVT_MASKED;
if (!lapic_is_integrated()) /* 82489DX */
/* Is 82489DX ? */
if (!lapic_is_integrated())
value |= APIC_LVT_LEVEL_TRIGGER;
apic_write(APIC_LVT1, value);