diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2019-11-26 17:54:16 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-12-10 10:15:48 +0100 |
| commit | 8c53b318b222eff55d2900b554094a099b1a30f6 (patch) | |
| tree | eeee7f57178086e00a21befe9bd4c577230218dc /arch | |
| parent | x86/ACPI/sleep: Remove an unnecessary include of asm/realmode.h (diff) | |
| download | linux-8c53b318b222eff55d2900b554094a099b1a30f6.tar.xz linux-8c53b318b222eff55d2900b554094a099b1a30f6.zip | |
ACPI/sleep: Convert acpi_wakeup_address into a function
Convert acpi_wakeup_address from a raw variable into a function so that
x86 can wrap its dereference of the real mode boot header in a function
instead of broadcasting it to the world via a #define. This sets the
stage for a future patch to move x86's definition of the new function,
acpi_get_wakeup_address(), out of asm/acpi.h and thus break acpi.h's
dependency on asm/realmode.h.
No functional change intended.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Link: https://lkml.kernel.org/r/20191126165417.22423-12-sean.j.christopherson@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ia64/include/asm/acpi.h | 5 | ||||
| -rw-r--r-- | arch/ia64/kernel/acpi.c | 2 | ||||
| -rw-r--r-- | arch/x86/include/asm/acpi.h | 5 |
3 files changed, 8 insertions, 4 deletions
diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h index f886d4dc9d55..b66ba907019c 100644 --- a/arch/ia64/include/asm/acpi.h +++ b/arch/ia64/include/asm/acpi.h @@ -38,7 +38,10 @@ int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); /* Low-level suspend routine. */ extern int acpi_suspend_lowlevel(void); -extern unsigned long acpi_wakeup_address; +static inline unsigned long acpi_get_wakeup_address(void) +{ + return 0; +} /* * Record the cpei override flag and current logical cpu. This is diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index 70d1587ddcd4..a5636524af76 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -42,8 +42,6 @@ int acpi_lapic; unsigned int acpi_cpei_override; unsigned int acpi_cpei_phys_cpuid; -unsigned long acpi_wakeup_address = 0; - #define ACPI_MAX_PLATFORM_INTERRUPTS 256 /* Array to record platform interrupt vectors for generic interrupt routing. */ diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h index bc9693c9107e..23ffafd927a1 100644 --- a/arch/x86/include/asm/acpi.h +++ b/arch/x86/include/asm/acpi.h @@ -62,7 +62,10 @@ static inline void acpi_disable_pci(void) extern int (*acpi_suspend_lowlevel)(void); /* Physical address to resume after wakeup */ -#define acpi_wakeup_address ((unsigned long)(real_mode_header->wakeup_start)) +static inline unsigned long acpi_get_wakeup_address(void) +{ + return ((unsigned long)(real_mode_header->wakeup_start)); +} /* * Check if the CPU can handle C2 and deeper |