kernel-ark/arch/mips/include/asm/smp-cps.h
Paul Burton 064231e548 MIPS: pm-cps: Prevent use of mips_cps_* without CPS SMP
These symbols will not be defined when CONFIG_MIPS_CPS=n, but although
the CPS_PM_POWER_GATED state will never be used in that case the
compiler doesn't have enough information to figure that out. Add checks
which evaluate to a constant false for CONFIG_MIPS_CPS=n cases in order
to help the compiler out & eliminate the symbol references.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7278/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30 20:47:39 +02:00

53 lines
1.2 KiB
C

/*
* Copyright (C) 2013 Imagination Technologies
* Author: Paul Burton <paul.burton@imgtec.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __MIPS_ASM_SMP_CPS_H__
#define __MIPS_ASM_SMP_CPS_H__
#ifndef __ASSEMBLY__
struct vpe_boot_config {
unsigned long pc;
unsigned long sp;
unsigned long gp;
};
struct core_boot_config {
atomic_t vpe_mask;
struct vpe_boot_config *vpe_config;
};
extern struct core_boot_config *mips_cps_core_bootcfg;
extern void mips_cps_core_entry(void);
extern void mips_cps_core_init(void);
extern struct vpe_boot_config *mips_cps_boot_vpes(void);
extern void mips_cps_pm_save(void);
extern void mips_cps_pm_restore(void);
#ifdef CONFIG_MIPS_CPS
extern bool mips_cps_smp_in_use(void);
#else /* !CONFIG_MIPS_CPS */
static inline bool mips_cps_smp_in_use(void) { return false; }
#endif /* !CONFIG_MIPS_CPS */
#else /* __ASSEMBLY__ */
.extern mips_cps_bootcfg;
#endif /* __ASSEMBLY__ */
#endif /* __MIPS_ASM_SMP_CPS_H__ */