projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 620165f9 KG |
1 | /* |
| 2 | * Copyright 2009 Freescale Semicondutor, Inc. | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or | |
| 5 | * modify it under the terms of the GNU General Public License | |
| 6 | * as published by the Free Software Foundation; either version | |
| 7 | * 2 of the License, or (at your option) any later version. | |
| 8 | * | |
| 9 | * provides masks and opcode images for use by code generation, emulation | |
| 10 | * and for instructions that older assemblers might not know about | |
| 11 | */ | |
| 12 | #ifndef _ASM_POWERPC_DBELL_H | |
| 13 | #define _ASM_POWERPC_DBELL_H | |
| 14 | ||
| 15 | #include <linux/smp.h> | |
| 16 | #include <linux/threads.h> | |
| 17 | ||
| 18 | #include <asm/ppc-opcode.h> | |
| 19 | ||
| 20 | #define PPC_DBELL_MSG_BRDCAST (0x04000000) | |
| 21 | #define PPC_DBELL_TYPE(x) (((x) & 0xf) << 28) | |
| 22 | enum ppc_dbell { | |
| 23 | PPC_DBELL = 0, /* doorbell */ | |
| 24 | PPC_DBELL_CRIT = 1, /* critical doorbell */ | |
| 25 | PPC_G_DBELL = 2, /* guest doorbell */ | |
| 26 | PPC_G_DBELL_CRIT = 3, /* guest critical doorbell */ | |
| 27 | PPC_G_DBELL_MC = 4, /* guest mcheck doorbell */ | |
| 28 | }; | |
| 29 | ||
| 23d72bfd | 30 | extern void doorbell_cause_ipi(int cpu, unsigned long data); |
| b9f1cd71 BH |
31 | extern void doorbell_exception(struct pt_regs *regs); |
| 32 | extern void doorbell_setup_this_cpu(void); | |
| 620165f9 KG |
33 | |
| 34 | static inline void ppc_msgsnd(enum ppc_dbell type, u32 flags, u32 tag) | |
| 35 | { | |
| 36 | u32 msg = PPC_DBELL_TYPE(type) | (flags & PPC_DBELL_MSG_BRDCAST) | | |
| 37 | (tag & 0x07ffffff); | |
| 38 | ||
| 39 | __asm__ __volatile__ (PPC_MSGSND(%0) : : "r" (msg)); | |
| 40 | } | |
| 41 | ||
| 42 | #endif /* _ASM_POWERPC_DBELL_H */ |