Hi Lv, On 2014-4-28 12:54, Zheng, Lv wrote: > Hi, > >> From: linux-acpi-owner@xxxxxxxxxxxxxxx [mailto:linux-acpi-owner@xxxxxxxxxxxxxxx] On Behalf Of Hanjun Guo >> Sent: Friday, April 25, 2014 9:20 PM >> >> ACPI core need lots extern variables and functions which should >> be provided by arch dependent code to make itself compilable. so >> introduce arm_core.c and its related header file here. >> >> acpi_boot_table_init() will be called in setup_arch() before >> paging_init(), so we should use eary_ioremap() mechanism here >> to get the RSDP and all the table pointers, with this patch, >> we can get ACPI boot-time tables from firmware 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> >> Signed-off-by: Tomasz Nowicki <tomasz.nowicki@xxxxxxxxxx> >> --- >> arch/arm64/include/asm/acpi.h | 53 +++++++++++++++++++ >> arch/arm64/kernel/setup.c | 4 ++ >> drivers/acpi/Makefile | 2 + >> drivers/acpi/plat/Makefile | 1 + >> drivers/acpi/plat/arm-core.c | 113 +++++++++++++++++++++++++++++++++++++++++ >> 5 files changed, 173 insertions(+) >> create mode 100644 drivers/acpi/plat/Makefile >> create mode 100644 drivers/acpi/plat/arm-core.c >> >> diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h >> index e3e990e..3ac9dfb 100644 >> --- a/arch/arm64/include/asm/acpi.h >> +++ b/arch/arm64/include/asm/acpi.h >> @@ -19,6 +19,43 @@ >> #ifndef _ASM_ACPI_H >> #define _ASM_ACPI_H >> >> +#include <asm/cacheflush.h> >> + >> +#include <linux/init.h> >> + >> +#define COMPILER_DEPENDENT_INT64 s64 >> +#define COMPILER_DEPENDENT_UINT64 u64 >> + >> +/* >> + * Calling conventions: >> + * >> + * ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads) >> + * ACPI_EXTERNAL_XFACE - External ACPI interfaces >> + * ACPI_INTERNAL_XFACE - Internal ACPI interfaces >> + * ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces >> + */ >> +#define ACPI_SYSTEM_XFACE >> +#define ACPI_EXTERNAL_XFACE >> +#define ACPI_INTERNAL_XFACE >> +#define ACPI_INTERNAL_VAR_XFACE > > Just a reminder. > I'm going to sort such default definitions out. > The story can be found here: > https://lkml.org/lkml/2014/4/8/57 > The patch to achieve this can be found here: > https://lkml.org/lkml/2014/4/23/71 > > If your series is merged after the above series, you don't need the above lines. > >> + >> +/* Asm macros */ >> +#define ACPI_FLUSH_CPU_CACHE() flush_cache_all() >> + > > Another reminder. > I'm going to split this into <asm/acenv.h> in the same story. > The patch to achieve this can be found here: > https://lkml.org/lkml/2014/4/23/75 > If your series is merged after the above series, you need to put this line into arch/arm/include/asm/acenv.h. It is ok to me, once your patches are accepted by Rafael and merged into linux-next, I will rebase my patch set. Thanks a lot the reminding :) Best regards Hanjun -- 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
