diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-01 07:48:13 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-01 07:48:13 -0700 |
commit | c87d5d594736dd8b56df67e31846c7d7b8c41a8f (patch) | |
tree | a4496b74b932e55b544d040af2668e68abcb1e56 /arch/hexagon/kernel/topology.c | |
parent | 094803e0aab3fe75bbf8202a8f4b5280eaade375 (diff) | |
parent | 4e29198e1cd7728c30c96a8483a6068c71b34e4e (diff) | |
download | linux-c87d5d594736dd8b56df67e31846c7d7b8c41a8f.tar.bz2 |
Merge Qualcom Hexagon architecture
This is the fifth version of the patchset (with one tiny whitespace fix)
to the Linux kernel to support the Qualcomm Hexagon architecture.
Between now and the next pull requests, Richard Kuo should have his key
signed, etc., and should be back on kernel.org. In the meantime, this
got merged as a emailed patch-series.
* Hexagon: (36 commits)
Add extra arch overrides to asm-generic/checksum.h
Hexagon: Add self to MAINTAINERS
Hexagon: Add basic stacktrace functionality for Hexagon architecture.
Hexagon: Add configuration and makefiles for the Hexagon architecture.
Hexagon: Comet platform support
Hexagon: kgdb support files
Hexagon: Add page-fault support.
Hexagon: Add page table header files & etc.
Hexagon: Add ioremap support
Hexagon: Provide DMA implementation
Hexagon: Implement basic TLB management routines for Hexagon.
Hexagon: Implement basic cache-flush support
Hexagon: Provide basic implementation and/or stubs for I/O routines.
Hexagon: Add user access functions
Hexagon: Add locking types and functions
Hexagon: Add SMP support
Hexagon: Provide basic debugging and system trap support.
Hexagon: Add ptrace support
Hexagon: Add time and timer functions
Hexagon: Add interrupts
...
Diffstat (limited to 'arch/hexagon/kernel/topology.c')
-rw-r--r-- | arch/hexagon/kernel/topology.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/hexagon/kernel/topology.c b/arch/hexagon/kernel/topology.c new file mode 100644 index 000000000000..ba4475184432 --- /dev/null +++ b/arch/hexagon/kernel/topology.c @@ -0,0 +1,52 @@ +/* + * CPU topology for Hexagon + * + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#include <linux/cpu.h> +#include <linux/cpumask.h> +#include <linux/init.h> +#include <linux/node.h> +#include <linux/nodemask.h> +#include <linux/percpu.h> + +/* Swiped from MIPS. */ + +static DEFINE_PER_CPU(struct cpu, cpu_devices); + +static int __init topology_init(void) +{ + int i, ret; + + for_each_present_cpu(i) { + + /* + * register_cpu takes a per_cpu pointer and + * just points it at another per_cpu struct... + */ + + ret = register_cpu(&per_cpu(cpu_devices, i), i); + if (ret) + printk(KERN_WARNING "topology_init: register_cpu %d " + "failed (%d)\n", i, ret); + } + + return 0; +} + +subsys_initcall(topology_init); |