diff options
| author | Gregory CLEMENT <gregory.clement@free-electrons.com> | 2012-08-02 12:16:29 +0400 |
|---|---|---|
| committer | Gregory CLEMENT <gregory.clement@free-electrons.com> | 2012-11-21 19:49:06 +0400 |
| commit | 009f13159bfdccd6e06fe3b62a39fee6dce26c39 (patch) | |
| tree | 681d68bde140a819f18af537a51131c850dc8edb /arch/arm/mach-mvebu/coherency.h | |
| parent | 1611f872513735ac7105535689c0dd668fbf1c04 (diff) | |
| download | linux-009f13159bfdccd6e06fe3b62a39fee6dce26c39.tar.xz | |
arm: mvebu: Add support for coherency fabric in mach-mvebu
The Armada 370 and Armada XP SOCs have a coherency fabric unit which
is responsible for ensuring hardware coherency between all CPUs and
between CPUs and I/O masters. This patch provides the basic support
needed for SMP.
Signed-off-by: Yehuda Yitschak <yehuday@marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm/mach-mvebu/coherency.h')
| -rw-r--r-- | arch/arm/mach-mvebu/coherency.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/mach-mvebu/coherency.h b/arch/arm/mach-mvebu/coherency.h new file mode 100644 index 000000000000..2f428137f6fe --- /dev/null +++ b/arch/arm/mach-mvebu/coherency.h @@ -0,0 +1,24 @@ +/* + * arch/arm/mach-mvebu/include/mach/coherency.h + * + * + * Coherency fabric (Aurora) support for Armada 370 and XP platforms. + * + * Copyright (C) 2012 Marvell + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#ifndef __MACH_370_XP_COHERENCY_H +#define __MACH_370_XP_COHERENCY_H + +#ifdef CONFIG_SMP +int coherency_get_cpu_count(void); +#endif + +int set_cpu_coherent(int cpu_id, int smp_group_id); +int coherency_init(void); + +#endif /* __MACH_370_XP_COHERENCY_H */ |