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ACPI: Don't use acpi_lapic in ACPI core code

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Now ARM64 support is being added to ACPI so architecture specific
values can not be used in core ACPI code.

Following on the patch "ACPI / processor: Check if LAPIC is present
during initialization" which uses acpi_lapic in acpi_processor.c,
on ARM64 platform, GIC is used instead of local APIC, so acpi_lapic
is not a suitable value for ARM64.

What is actually important at this point is if there is/are CPU
entry/entries (Local APIC/SAPIC, GICC) in MADT, so introduce
acpi_has_cpu_in_madt() to be arch specific and generic.

Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Graeme Gregory
2014-07-18 18:02:53 +08:00
committed by Rafael J. Wysocki
parent 8a1664be0b
commit b50154d53e
3 changed files with 11 additions and 1 deletions
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5
arch/x86/include/asm/acpi.h
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@@ -121,6 +121,11 @@ static inline void arch_acpi_set_pdc_bits(u32 *buf)
buf[2] &= ~(ACPI_PDC_C_C2C3_FFH);
}
static inline bool acpi_has_cpu_in_madt(void)
{
return !!acpi_lapic;
}
#else /* !CONFIG_ACPI */
#define acpi_lapic 0