Release 4.11 arch/powerpc/include/asm/dbell.h
/*
* Copyright 2009 Freescale Semiconductor, Inc.
*
* 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.
*
* provides masks and opcode images for use by code generation, emulation
* and for instructions that older assemblers might not know about
*/
#ifndef _ASM_POWERPC_DBELL_H
#define _ASM_POWERPC_DBELL_H
#include <linux/smp.h>
#include <linux/threads.h>
#include <asm/ppc-opcode.h>
#include <asm/cpu_has_feature.h>
#define PPC_DBELL_MSG_BRDCAST (0x04000000)
#define PPC_DBELL_TYPE(x) (((x) & 0xf) << (63-36))
#define PPC_DBELL_TYPE_MASK PPC_DBELL_TYPE(0xf)
#define PPC_DBELL_LPID(x) ((x) << (63 - 49))
#define PPC_DBELL_PIR_MASK 0x3fff
enum ppc_dbell {
PPC_DBELL = 0, /* doorbell */
PPC_DBELL_CRIT = 1, /* critical doorbell */
PPC_G_DBELL = 2, /* guest doorbell */
PPC_G_DBELL_CRIT = 3, /* guest critical doorbell */
PPC_G_DBELL_MC = 4, /* guest mcheck doorbell */
PPC_DBELL_SERVER = 5, /* doorbell on server */
};
#ifdef CONFIG_PPC_BOOK3S
#define PPC_DBELL_MSGTYPE PPC_DBELL_SERVER
#define SPRN_DOORBELL_CPUTAG SPRN_TIR
#define PPC_DBELL_TAG_MASK 0x7f
static inline void _ppc_msgsnd(u32 msg)
{
if (cpu_has_feature(CPU_FTR_HVMODE))
__asm__ __volatile__ (PPC_MSGSND(%0) : : "r" (msg));
else
__asm__ __volatile__ (PPC_MSGSNDP(%0) : : "r" (msg));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ian Munsie | 24 | 100.00% | 1 | 100.00% |
| Total | 24 | 100.00% | 1 | 100.00% |
#else /* CONFIG_PPC_BOOK3S */
#define PPC_DBELL_MSGTYPE PPC_DBELL
#define SPRN_DOORBELL_CPUTAG SPRN_PIR
#define PPC_DBELL_TAG_MASK 0x3fff
static inline void _ppc_msgsnd(u32 msg)
{
__asm__ __volatile__ (PPC_MSGSND(%0) : : "r" (msg));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ian Munsie | 13 | 100.00% | 1 | 100.00% |
| Total | 13 | 100.00% | 1 | 100.00% |
#endif /* CONFIG_PPC_BOOK3S */
extern void doorbell_cause_ipi(int cpu, unsigned long data);
extern void doorbell_exception(struct pt_regs *regs);
extern void doorbell_setup_this_cpu(void);
static inline void ppc_msgsnd(enum ppc_dbell type, u32 flags, u32 tag)
{
u32 msg = PPC_DBELL_TYPE(type) | (flags & PPC_DBELL_MSG_BRDCAST) |
(tag & 0x07ffffff);
_ppc_msgsnd(msg);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kumar Gala | 37 | 88.10% | 1 | 50.00% |
| Ian Munsie | 5 | 11.90% | 1 | 50.00% |
| Total | 42 | 100.00% | 2 | 100.00% |
#endif /* _ASM_POWERPC_DBELL_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kumar Gala | 102 | 45.54% | 1 | 9.09% |
| Ian Munsie | 80 | 35.71% | 2 | 18.18% |
| Benjamin Herrenschmidt | 17 | 7.59% | 1 | 9.09% |
| Alexander Graf | 8 | 3.57% | 1 | 9.09% |
| Scott Wood | 7 | 3.12% | 1 | 9.09% |
| Milton D. Miller II | 5 | 2.23% | 2 | 18.18% |
| Kevin Hao | 3 | 1.34% | 1 | 9.09% |
| Li Yang | 1 | 0.45% | 1 | 9.09% |
| Michael Neuling | 1 | 0.45% | 1 | 9.09% |
| Total | 224 | 100.00% | 11 | 100.00% |
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