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| author | Graeme Gregory <graeme.gregory@linaro.org> | 2014-07-18 12:02:53 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-07-21 13:50:58 +0200 |
| commit | b50154d53e668314542ef9a592accc37137a8f65 (patch) | |
| tree | 49e7da1ef6f55dd76a05c7c70d1721c66a1b6179 /arch/x86 | |
| parent | ACPI: add config for BIOS table scan (diff) | |
| download | linux-b50154d53e668314542ef9a592accc37137a8f65.tar.xz linux-b50154d53e668314542ef9a592accc37137a8f65.zip | |
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')
| -rw-r--r-- | arch/x86/include/asm/acpi.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h index e06225eda635..0ab4f9fd2687 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 |