~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/arch/powerpc/include/asm/dbell.h

Version: ~ [ linux-5.3 ] ~ [ linux-5.2.15 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.73 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.144 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.193 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.193 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.73 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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  *
  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) << (63-36))
 22 #define PPC_DBELL_TYPE_MASK     PPC_DBELL_TYPE(0xf)
 23 #define PPC_DBELL_LPID(x)       ((x) << (63 - 49))
 24 #define PPC_DBELL_PIR_MASK      0x3fff
 25 enum ppc_dbell {
 26         PPC_DBELL = 0,          /* doorbell */
 27         PPC_DBELL_CRIT = 1,     /* critical doorbell */
 28         PPC_G_DBELL = 2,        /* guest doorbell */
 29         PPC_G_DBELL_CRIT = 3,   /* guest critical doorbell */
 30         PPC_G_DBELL_MC = 4,     /* guest mcheck doorbell */
 31         PPC_DBELL_SERVER = 5,   /* doorbell on server */
 32 };
 33 
 34 #ifdef CONFIG_PPC_BOOK3S
 35 
 36 #define PPC_DBELL_MSGTYPE               PPC_DBELL_SERVER
 37 #define SPRN_DOORBELL_CPUTAG            SPRN_TIR
 38 #define PPC_DBELL_TAG_MASK              0x7f
 39 
 40 static inline void _ppc_msgsnd(u32 msg)
 41 {
 42         if (cpu_has_feature(CPU_FTR_HVMODE))
 43                 __asm__ __volatile__ (PPC_MSGSND(%0) : : "r" (msg));
 44         else
 45                 __asm__ __volatile__ (PPC_MSGSNDP(%0) : : "r" (msg));
 46 }
 47 
 48 #else /* CONFIG_PPC_BOOK3S */
 49 
 50 #define PPC_DBELL_MSGTYPE               PPC_DBELL
 51 #define SPRN_DOORBELL_CPUTAG            SPRN_PIR
 52 #define PPC_DBELL_TAG_MASK              0x3fff
 53 
 54 static inline void _ppc_msgsnd(u32 msg)
 55 {
 56         __asm__ __volatile__ (PPC_MSGSND(%0) : : "r" (msg));
 57 }
 58 
 59 #endif /* CONFIG_PPC_BOOK3S */
 60 
 61 extern void doorbell_cause_ipi(int cpu, unsigned long data);
 62 extern void doorbell_exception(struct pt_regs *regs);
 63 extern void doorbell_setup_this_cpu(void);
 64 
 65 static inline void ppc_msgsnd(enum ppc_dbell type, u32 flags, u32 tag)
 66 {
 67         u32 msg = PPC_DBELL_TYPE(type) | (flags & PPC_DBELL_MSG_BRDCAST) |
 68                         (tag & 0x07ffffff);
 69 
 70         _ppc_msgsnd(msg);
 71 }
 72 
 73 #endif /* _ASM_POWERPC_DBELL_H */
 74 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp