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authorGraeme Gregory <graeme.gregory@linaro.org>2014-07-18 18:02:53 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-07-21 13:50:58 +0200
commitb50154d53e668314542ef9a592accc37137a8f65 (patch)
tree49e7da1ef6f55dd76a05c7c70d1721c66a1b6179 /arch/x86/include
parent8a1664be0b922dd6afd60eca96a992ef5ec22c40 (diff)
downloadlinux-b50154d53e668314542ef9a592accc37137a8f65.tar.gz
ACPI: Don't use acpi_lapic in ACPI core code
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>
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/acpi.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index e06225eda63..0ab4f9fd268 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -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