diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-07-28 23:32:00 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-28 23:32:00 +0200 |
| commit | 9e3ee1c39c0cc71222f9980ccbf87fe072897eef (patch) | |
| tree | 99462000e6f0d4f907cb2fc690f19d4d441ba0f3 /arch/sparc/include/asm/msi.h | |
| parent | e56b3bc7942982ac2589c942fb345e38bc7a341a (diff) | |
| parent | f934fb19ef34730263e6afc01e8ec27a8a71470f (diff) | |
Merge branch 'linus' into cpus4096
Conflicts:
kernel/stop_machine.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/sparc/include/asm/msi.h')
| -rw-r--r-- | arch/sparc/include/asm/msi.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/msi.h b/arch/sparc/include/asm/msi.h new file mode 100644 index 00000000000..724ca566705 --- /dev/null +++ b/arch/sparc/include/asm/msi.h @@ -0,0 +1,31 @@ +/* + * msi.h: Defines specific to the MBus - Sbus - Interface. + * + * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) + */ + +#ifndef _SPARC_MSI_H +#define _SPARC_MSI_H + +/* + * Locations of MSI Registers. + */ +#define MSI_MBUS_ARBEN 0xe0001008 /* MBus Arbiter Enable register */ + +/* + * Useful bits in the MSI Registers. + */ +#define MSI_ASYNC_MODE 0x80000000 /* Operate the MSI asynchronously */ + + +static inline void msi_set_sync(void) +{ + __asm__ __volatile__ ("lda [%0] %1, %%g3\n\t" + "andn %%g3, %2, %%g3\n\t" + "sta %%g3, [%0] %1\n\t" : : + "r" (MSI_MBUS_ARBEN), + "i" (ASI_M_CTL), "r" (MSI_ASYNC_MODE) : "g3"); +} + +#endif /* !(_SPARC_MSI_H) */ |