Unverified Commit 0def12f3 authored by Sia Jee Heng's avatar Sia Jee Heng Committed by Palmer Dabbelt
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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: default avatarSia Jee Heng <jeeheng.sia@starfivetech.com>
Reviewed-by: default avatarLey Foon Tan <leyfoon.tan@starfivetech.com>
Reviewed-by: default avatarMason Huo <mason.huo@starfivetech.com>
Reviewed-by: default avatarConor Dooley <conor.dooley@microchip.com>
Reviewed-by: default avatarAndrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20230330064321.1008373-2-jeeheng.sia@starfivetech.com


Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent fe15c26e

arch/riscv/include/asm/suspend.h

+3 −0
Original line number Diff line number Diff line
@@ -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

arch/riscv/kernel/suspend.c

+2 −2
Original line number Diff line number Diff line
@@ -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);