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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>
This commit is contained in:
Sia Jee Heng 2023-03-30 14:43:18 +08:00 committed by Palmer Dabbelt
parent fe15c26ee2
commit 0def12f321
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GPG Key ID: 2E1319F35FBB1889
2 changed files with 5 additions and 2 deletions
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3
arch/riscv/include/asm/suspend.h
View File

@ -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

4
arch/riscv/kernel/suspend.c
View File

@ -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);