dbell.h (f26e8817b235d8764363bffcc9cbfc61867371f2) dbell.h (b866cc2199d6a6cdcefe4acfe4cfca3ac3c6d38e)
1/*
2 * Copyright 2009 Freescale Semiconductor, 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 *

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30 PPC_G_DBELL_CRIT = 3, /* guest critical doorbell */
31 PPC_G_DBELL_MC = 4, /* guest mcheck doorbell */
32 PPC_DBELL_SERVER = 5, /* doorbell on server */
33};
34
35#ifdef CONFIG_PPC_BOOK3S
36
37#define PPC_DBELL_MSGTYPE PPC_DBELL_SERVER
1/*
2 * Copyright 2009 Freescale Semiconductor, 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 *

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30 PPC_G_DBELL_CRIT = 3, /* guest critical doorbell */
31 PPC_G_DBELL_MC = 4, /* guest mcheck doorbell */
32 PPC_DBELL_SERVER = 5, /* doorbell on server */
33};
34
35#ifdef CONFIG_PPC_BOOK3S
36
37#define PPC_DBELL_MSGTYPE PPC_DBELL_SERVER
38#define SPRN_DOORBELL_CPUTAG SPRN_TIR
39#define PPC_DBELL_TAG_MASK 0x7f
40
41static inline void _ppc_msgsnd(u32 msg)
42{
43 if (cpu_has_feature(CPU_FTR_HVMODE))
44 __asm__ __volatile__ (PPC_MSGSND(%0) : : "r" (msg));
45 else
46 __asm__ __volatile__ (PPC_MSGSNDP(%0) : : "r" (msg));
47}
48
49#else /* CONFIG_PPC_BOOK3S */
50
51#define PPC_DBELL_MSGTYPE PPC_DBELL
38
39static inline void _ppc_msgsnd(u32 msg)
40{
41 if (cpu_has_feature(CPU_FTR_HVMODE))
42 __asm__ __volatile__ (PPC_MSGSND(%0) : : "r" (msg));
43 else
44 __asm__ __volatile__ (PPC_MSGSNDP(%0) : : "r" (msg));
45}
46
47#else /* CONFIG_PPC_BOOK3S */
48
49#define PPC_DBELL_MSGTYPE PPC_DBELL
52#define SPRN_DOORBELL_CPUTAG SPRN_PIR
53#define PPC_DBELL_TAG_MASK 0x3fff
54
55static inline void _ppc_msgsnd(u32 msg)
56{
57 __asm__ __volatile__ (PPC_MSGSND(%0) : : "r" (msg));
58}
59
60#endif /* CONFIG_PPC_BOOK3S */
61
50
51static inline void _ppc_msgsnd(u32 msg)
52{
53 __asm__ __volatile__ (PPC_MSGSND(%0) : : "r" (msg));
54}
55
56#endif /* CONFIG_PPC_BOOK3S */
57
62extern void doorbell_cause_ipi(int cpu, unsigned long data);
58extern void doorbell_global_ipi(int cpu);
59extern void doorbell_core_ipi(int cpu);
60extern int doorbell_try_core_ipi(int cpu);
63extern void doorbell_exception(struct pt_regs *regs);
61extern void doorbell_exception(struct pt_regs *regs);
64extern void doorbell_setup_this_cpu(void);
65
66static inline void ppc_msgsnd(enum ppc_dbell type, u32 flags, u32 tag)
67{
68 u32 msg = PPC_DBELL_TYPE(type) | (flags & PPC_DBELL_MSG_BRDCAST) |
69 (tag & 0x07ffffff);
70
71 _ppc_msgsnd(msg);
72}
73
74#endif /* _ASM_POWERPC_DBELL_H */
62
63static inline void ppc_msgsnd(enum ppc_dbell type, u32 flags, u32 tag)
64{
65 u32 msg = PPC_DBELL_TYPE(type) | (flags & PPC_DBELL_MSG_BRDCAST) |
66 (tag & 0x07ffffff);
67
68 _ppc_msgsnd(msg);
69}
70
71#endif /* _ASM_POWERPC_DBELL_H */