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| author | Sia Jee Heng <jeeheng.sia@starfivetech.com> | 2023-03-30 09:43:18 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-04-29 21:25:10 +0300 |
| commit | 0def12f32129c774f2cd598e326cc4b473da927b (patch) | |
| tree | 54bbd6a450eff35380a4980f5a62c995cf82ea4b /arch/riscv | |
| parent | fe15c26ee26efa11741a7b632e9f23b01aca4cc6 (diff) | |
| download | linux-0def12f32129c774f2cd598e326cc4b473da927b.tar.xz | |
RISC-V: Change suspend_save_csrs and suspend_restore_csrs to public function
Currently suspend_save_csrs() and suspend_restore_csrs() functions are
statically defined in the suspend.c. Change the function's attribute
to public so that the functions can be used by hibernation as well.
Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
Reviewed-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>
Reviewed-by: Mason Huo <mason.huo@starfivetech.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20230330064321.1008373-2-jeeheng.sia@starfivetech.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/include/asm/suspend.h | 3 | ||||
| -rw-r--r-- | arch/riscv/kernel/suspend.c | 4 |
2 files changed, 5 insertions, 2 deletions
diff --git a/arch/riscv/include/asm/suspend.h b/arch/riscv/include/asm/suspend.h index 8be391c2aecb..67e047445662 100644 --- a/arch/riscv/include/asm/suspend.h +++ b/arch/riscv/include/asm/suspend.h @@ -33,4 +33,7 @@ int cpu_suspend(unsigned long arg, /* Low-level CPU resume entry function */ int __cpu_resume_enter(unsigned long hartid, unsigned long context); +/* Used to save and restore the CSRs */ +void suspend_save_csrs(struct suspend_context *context); +void suspend_restore_csrs(struct suspend_context *context); #endif diff --git a/arch/riscv/kernel/suspend.c b/arch/riscv/kernel/suspend.c index 9ba24fb8cc93..3c89b8ec69c4 100644 --- a/arch/riscv/kernel/suspend.c +++ b/arch/riscv/kernel/suspend.c @@ -8,7 +8,7 @@ #include <asm/csr.h> #include <asm/suspend.h> -static void suspend_save_csrs(struct suspend_context *context) +void suspend_save_csrs(struct suspend_context *context) { context->scratch = csr_read(CSR_SCRATCH); context->tvec = csr_read(CSR_TVEC); @@ -29,7 +29,7 @@ static void suspend_save_csrs(struct suspend_context *context) #endif } -static void suspend_restore_csrs(struct suspend_context *context) +void suspend_restore_csrs(struct suspend_context *context) { csr_write(CSR_SCRATCH, context->scratch); csr_write(CSR_TVEC, context->tvec); |