diff options
author | Tejun Heo <tj@kernel.org> | 2009-08-14 01:41:02 -0400 |
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committer | Tejun Heo <tj@kernel.org> | 2009-08-14 01:45:31 -0400 |
commit | 384be2b18a5f9475eab9ca2bdfa95cc1a04ef59c (patch) | |
tree | 04c93f391a1b65c8bf8d7ba8643c07d26c26590a /arch/mips/ar7/memory.c | |
parent | a76761b621bcd8336065c4fe3a74f046858bc34c (diff) | |
parent | 142d44b0dd6741a64a7bdbe029110e7c1dcf1d23 (diff) |
Merge branch 'percpu-for-linus' into percpu-for-next
Conflicts:
arch/sparc/kernel/smp_64.c
arch/x86/kernel/cpu/perf_counter.c
arch/x86/kernel/setup_percpu.c
drivers/cpufreq/cpufreq_ondemand.c
mm/percpu.c
Conflicts in core and arch percpu codes are mostly from commit
ed78e1e078dd44249f88b1dd8c76dafb39567161 which substituted many
num_possible_cpus() with nr_cpu_ids. As for-next branch has moved all
the first chunk allocators into mm/percpu.c, the changes are moved
from arch code to mm/percpu.c.
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/mips/ar7/memory.c')
-rw-r--r-- | arch/mips/ar7/memory.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/arch/mips/ar7/memory.c b/arch/mips/ar7/memory.c new file mode 100644 index 000000000000..696c723dc6d4 --- /dev/null +++ b/arch/mips/ar7/memory.c | |||
@@ -0,0 +1,72 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2007 Felix Fietkau <nbd@openwrt.org> | ||
3 | * Copyright (C) 2007 Eugene Konev <ejka@openwrt.org> | ||
4 | * | ||
5 | * This program is free software; you can redistribute it and/or modify | ||
6 | * it under the terms of the GNU General Public License as published by | ||
7 | * the Free Software Foundation; either version 2 of the License, or | ||
8 | * (at your option) any later version. | ||
9 | * | ||
10 | * This program is distributed in the hope that it will be useful, | ||
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
13 | * GNU General Public License for more details. | ||
14 | * | ||
15 | * You should have received a copy of the GNU General Public License | ||
16 | * along with this program; if not, write to the Free Software | ||
17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
18 | */ | ||
19 | #include <linux/bootmem.h> | ||
20 | #include <linux/init.h> | ||
21 | #include <linux/mm.h> | ||
22 | #include <linux/module.h> | ||
23 | #include <linux/pfn.h> | ||
24 | #include <linux/proc_fs.h> | ||
25 | #include <linux/string.h> | ||
26 | #include <linux/swap.h> | ||
27 | |||
28 | #include <asm/bootinfo.h> | ||
29 | #include <asm/page.h> | ||
30 | #include <asm/sections.h> | ||
31 | |||
32 | #include <asm/mach-ar7/ar7.h> | ||
33 | #include <asm/mips-boards/prom.h> | ||
34 | |||
35 | static int __init memsize(void) | ||
36 | { | ||
37 | u32 size = (64 << 20); | ||
38 | u32 *addr = (u32 *)KSEG1ADDR(AR7_SDRAM_BASE + size - 4); | ||
39 | u32 *kernel_end = (u32 *)KSEG1ADDR(CPHYSADDR((u32)&_end)); | ||
40 | u32 *tmpaddr = addr; | ||
41 | |||
42 | while (tmpaddr > kernel_end) { | ||
43 | *tmpaddr = (u32)tmpaddr; | ||
44 | size >>= 1; | ||
45 | tmpaddr -= size >> 2; | ||
46 | } | ||
47 | |||
48 | do { | ||
49 | tmpaddr += size >> 2; | ||
50 | if (*tmpaddr != (u32)tmpaddr) | ||
51 | break; | ||
52 | size <<= 1; | ||
53 | } while (size < (64 << 20)); | ||
54 | |||
55 | writel((u32)tmpaddr, &addr); | ||
56 | |||
57 | return size; | ||
58 | } | ||
59 | |||
60 | void __init prom_meminit(void) | ||
61 | { | ||
62 | unsigned long pages; | ||
63 | |||
64 | pages = memsize() >> PAGE_SHIFT; | ||
65 | add_memory_region(PHYS_OFFSET, pages << PAGE_SHIFT, | ||
66 | BOOT_MEM_RAM); | ||
67 | } | ||
68 | |||
69 | void __init prom_free_prom_memory(void) | ||
70 | { | ||
71 | /* Nothing to free */ | ||
72 | } | ||