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| author | Yinbo Zhu <zhuyinbo@loongson.cn> | 2023-06-29 20:58:44 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2023-06-29 20:58:44 +0800 |
| commit | 31f1a8b0ec66cf21d83807243c3a54469a7018c3 (patch) | |
| tree | fdcfcec98c58b28bc8a88a90ee5a288c7dbad062 /arch/loongarch | |
| parent | 01158487af60cd3915e8c31924144caf29cb0767 (diff) | |
| download | linux-stable-31f1a8b0ec66cf21d83807243c3a54469a7018c3.tar.gz linux-stable-31f1a8b0ec66cf21d83807243c3a54469a7018c3.tar.bz2 linux-stable-31f1a8b0ec66cf21d83807243c3a54469a7018c3.zip | |
LoongArch: Export some arch-specific pm interfaces
Some PMC (Power Management Controllers) need to support DTS and will use
the suspend interfaces thus this patch was to export such interfaces for
their use.
Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch')
| -rw-r--r-- | arch/loongarch/include/asm/acpi.h | 4 | ||||
| -rw-r--r-- | arch/loongarch/include/asm/suspend.h | 10 | ||||
| -rw-r--r-- | arch/loongarch/power/suspend.c | 8 |
3 files changed, 16 insertions, 6 deletions
diff --git a/arch/loongarch/include/asm/acpi.h b/arch/loongarch/include/asm/acpi.h index 5c78b5d2bfb7..8de6c4b83a61 100644 --- a/arch/loongarch/include/asm/acpi.h +++ b/arch/loongarch/include/asm/acpi.h @@ -8,6 +8,8 @@ #ifndef _ASM_LOONGARCH_ACPI_H #define _ASM_LOONGARCH_ACPI_H +#include <asm/suspend.h> + #ifdef CONFIG_ACPI extern int acpi_strict; extern int acpi_disabled; @@ -46,12 +48,10 @@ static inline u32 get_acpi_id_for_cpu(unsigned int cpu) extern int loongarch_acpi_suspend(void); extern int (*acpi_suspend_lowlevel)(void); -extern void loongarch_suspend_enter(void); static inline unsigned long acpi_get_wakeup_address(void) { #ifdef CONFIG_SUSPEND - extern void loongarch_wakeup_start(void); return (unsigned long)loongarch_wakeup_start; #endif return 0UL; diff --git a/arch/loongarch/include/asm/suspend.h b/arch/loongarch/include/asm/suspend.h new file mode 100644 index 000000000000..4025c9d5d7cf --- /dev/null +++ b/arch/loongarch/include/asm/suspend.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_SUSPEND_H +#define __ASM_SUSPEND_H + +void loongarch_common_suspend(void); +void loongarch_common_resume(void); +void loongarch_suspend_enter(void); +void loongarch_wakeup_start(void); + +#endif diff --git a/arch/loongarch/power/suspend.c b/arch/loongarch/power/suspend.c index 5e19733e5e05..166d9e06a64b 100644 --- a/arch/loongarch/power/suspend.c +++ b/arch/loongarch/power/suspend.c @@ -27,7 +27,7 @@ struct saved_registers { }; static struct saved_registers saved_regs; -static void arch_common_suspend(void) +void loongarch_common_suspend(void) { save_counter(); saved_regs.pgd = csr_read64(LOONGARCH_CSR_PGDL); @@ -40,7 +40,7 @@ static void arch_common_suspend(void) loongarch_suspend_addr = loongson_sysconf.suspend_addr; } -static void arch_common_resume(void) +void loongarch_common_resume(void) { sync_counter(); local_flush_tlb_all(); @@ -62,12 +62,12 @@ int loongarch_acpi_suspend(void) enable_gpe_wakeup(); enable_pci_wakeup(); - arch_common_suspend(); + loongarch_common_suspend(); /* processor specific suspend */ loongarch_suspend_enter(); - arch_common_resume(); + loongarch_common_resume(); return 0; } |