Unverified Commit 419d5d38 authored by Guo Ren's avatar Guo Ren Committed by Palmer Dabbelt
Browse files

riscv: Rename __switch_to_aux() -> fpu 



The name of __switch_to_aux() is not clear and rename it with the
determine function: __switch_to_fpu(). Next we could add other regs'
switch.

Signed-off-by: default avatarGuo Ren <ren_guo@c-sky.com>
Signed-off-by: default avatarGuo Ren <guoren@linux.alibaba.com>
Signed-off-by: default avatarGreentime Hu <greentime.hu@sifive.com>
Reviewed-by: default avatarAnup Patel <anup@brainfault.org>
Reviewed-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: default avatarAndy Chiu <andy.chiu@sifive.com>
Tested-by: default avatarHeiko Stuebner <heiko.stuebner@vrull.eu>
Reviewed-by: default avatarHeiko Stuebner <heiko.stuebner@vrull.eu>
Reviewed-by: default avatarConor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230605110724.21391-2-andy.chiu@sifive.com


Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent ac9a7868

arch/riscv/include/asm/switch_to.h

+3 −3
Original line number Diff line number Diff line
@@ -46,7 +46,7 @@ static inline void fstate_restore(struct task_struct *task, 
	}

}



static inline void __switch_to_aux(struct task_struct *prev,

static inline void __switch_to_fpu(struct task_struct *prev,

				   struct task_struct *next)

{

	struct pt_regs *regs;
@@ -66,7 +66,7 @@ static __always_inline bool has_fpu(void) 
static __always_inline bool has_fpu(void) { return false; }

#define fstate_save(task, regs) do { } while (0)

#define fstate_restore(task, regs) do { } while (0)

#define __switch_to_aux(__prev, __next) do { } while (0)

#define __switch_to_fpu(__prev, __next) do { } while (0)

#endif



extern struct task_struct *__switch_to(struct task_struct *,
@@ -77,7 +77,7 @@ do { \ 
	struct task_struct *__prev = (prev);		\

	struct task_struct *__next = (next);		\

	if (has_fpu())					\

		__switch_to_aux(__prev, __next);	\

		__switch_to_fpu(__prev, __next);	\

	((last) = __switch_to(__prev, __next));		\

} while (0)