Release 4.14 arch/sparc/include/asm/msi.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * 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");
}

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Linus Torvalds (pre-git)
10
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2
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#endif /* !(_SPARC_MSI_H) */
Overall Contributors
Person
Tokens
Prop
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CommitProp
Linus Torvalds (pre-git)
31
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1
25.00%
Adrian Bunk
3
8.57%
2
50.00%
Greg Kroah-Hartman
1
2.86%
1
25.00%
Total
35
100.00%
4
100.00%
Directory: arch/sparc/include/asm

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