arch/mips/include/asm/smp-cps.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Copyright (C) 2013 Imagination Technologies
   4  * Author: Paul Burton <paul.burton@mips.com>
   5  */
   6
   7 #ifndef __MIPS_ASM_SMP_CPS_H__
   8 #define __MIPS_ASM_SMP_CPS_H__
   9
  10 #define CPS_ENTRY_PATCH_INSNS   6
  11
  12 #ifndef __ASSEMBLY__
  13
  14 struct vpe_boot_config {
  15         unsigned long pc;
  16         unsigned long sp;
  17         unsigned long gp;
  18 };
  19
  20 struct core_boot_config {
  21         atomic_t vpe_mask;
  22         struct vpe_boot_config *vpe_config;
  23 };
  24
  25 extern struct core_boot_config *mips_cps_core_bootcfg;
  26
  27 extern void mips_cps_core_boot(int cca, void __iomem *gcr_base);
  28 extern void mips_cps_core_init(void);
  29
  30 extern void mips_cps_boot_vpes(struct core_boot_config *cfg, unsigned vpe);
  31
  32 extern void mips_cps_pm_save(void);
  33 extern void mips_cps_pm_restore(void);
  34
  35 extern void excep_tlbfill(void);
  36 extern void excep_xtlbfill(void);
  37 extern void excep_cache(void);
  38 extern void excep_genex(void);
  39 extern void excep_intex(void);
  40 extern void excep_ejtag(void);
  41
  42 #ifdef CONFIG_MIPS_CPS
  43
  44 extern bool mips_cps_smp_in_use(void);
  45
  46 #else /* !CONFIG_MIPS_CPS */
  47
  48 static inline bool mips_cps_smp_in_use(void) { return false; }
  49
  50 #endif /* !CONFIG_MIPS_CPS */
  51
  52 #else /* __ASSEMBLY__ */
  53
  54 .extern mips_cps_bootcfg;
  55
  56 #endif /* __ASSEMBLY__ */
  57 #endif /* __MIPS_ASM_SMP_CPS_H__ */