The _PDC (Processor Driver Capabilities) object provides OSPM a mechanism to convey to the platform the capabilities supported by OSPM for processor power management. OSPM evaluates _PDC prior to evaluating any other processor power management objects returning configuration information. This patch introduces the skeleton of _PDC related file to make ACPI core can be compiled on ARM64. Signed-off-by: Al Stone <al.stone@xxxxxxxxxx> Signed-off-by: Graeme Gregory <graeme.gregory@xxxxxxxxxx> Signed-off-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx> --- arch/arm64/include/asm/acpi.h | 32 ++++++++++++++++++++++++++++++++ arch/arm64/include/asm/processor.h | 2 ++ arch/arm64/kernel/process.c | 3 +++ 3 files changed, 37 insertions(+) create mode 100644 arch/arm64/include/asm/acpi.h diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h new file mode 100644 index 0000000..cf19dc6 --- /dev/null +++ b/arch/arm64/include/asm/acpi.h @@ -0,0 +1,32 @@ +/* + * Copyright (C) 2013, Al Stone <al.stone@xxxxxxxxxx> + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + */ + +#ifndef _ASM_ARM64_ACPI_H +#define _ASM_ARM64_ACPI_H + +static inline bool arch_has_acpi_pdc(void) +{ + return false; /* always false for now */ +} + +static inline void arch_acpi_set_pdc_bits(u32 *buf) +{ + return; +} + +#endif /*_ASM_ARM64_ACPI_H*/ diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 45b20cd..50ce951 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -162,6 +162,8 @@ static inline void spin_lock_prefetch(const void *x) #define HAVE_ARCH_PICK_MMAP_LAYOUT +extern unsigned long boot_option_idle_override; + #endif #endif /* __ASM_PROCESSOR_H */ diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index de17c89..13d3d7f 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -89,6 +89,9 @@ void arch_cpu_idle_prepare(void) local_fiq_enable(); } +unsigned long boot_option_idle_override = IDLE_NO_OVERRIDE; +EXPORT_SYMBOL(boot_option_idle_override); + /* * This is our default idle handler. */ -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html