diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-29 18:18:06 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-29 18:18:06 -0400 |
commit | d973664992d814d93db161b28c0cc9a4c7e68f42 (patch) | |
tree | 03de3a9ef1f8f0d5dcd2e3c217c4fdf334f6691e /arch/arm/mm/copypage-feroceon.S | |
parent | 2d5e3e8d28a7820de1eb7b18a7c15d645bb26992 (diff) | |
parent | 9d87dd97ffcd3b5eb2bbaf0d5d93f4bfcaed3f04 (diff) |
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: (26 commits)
[ARM] pxa: fix 1c104e0e4f6ab396960c058e95e18bdedcac945b
[ARM] serial: s3c2410: platform_get_irq() may return signed unnoticed
[ARM] am79c961a: platform_get_irq() may return signed unnoticed
[ARM] Feroceon: Feroceon-specific WA-cache compatible {copy,clear}_user_page()
[ARM] Feroceon: fix function alignment in proc-feroceon.S
[ARM] Orion: catch a couple more alternative spellings of PCIe
[ARM] Orion: fix orion-ehci platform resource end addresses
[ARM] Orion: fix ->map_irq() PCIe bus number check
[ARM] Orion: fix ioremap() optimization
[ARM] feroceon: remove CONFIG_CPU_CACHE_ROUND_ROBIN check
[ARM] feroceon: remove CONFIG_CPU_DCACHE_WRITETHROUGH check
kprobes/arm: fix decoding of arithmetic immediate instructions
kprobes/arm: fix cache flush address for instruction stub
[ARM] 5022/1: Race in ARM MMCI PL18x driver, V2
[ARM] 5021/1: at91: buildfix for sam9263 + PM
[ARM] 5018/1: RealView: Fix the ARM11MPCore Oprofile compilation
[ARM] 5016/1: AT91: typo in mci configuration for at91cap at91sam9263
[ARM] 5017/1: pxa3xx: Report unsupported wakeup sources in pxa3xx_set_wake()
[ARM] 5020/1: magician: remove __devinit marker from pasic3_leds_info
[ARM] 5014/1: Cleanup reset state before entering suspend or resetting.
...
Diffstat (limited to 'arch/arm/mm/copypage-feroceon.S')
-rw-r--r-- | arch/arm/mm/copypage-feroceon.S | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/arch/arm/mm/copypage-feroceon.S b/arch/arm/mm/copypage-feroceon.S new file mode 100644 index 000000000000..7eb0d320d240 --- /dev/null +++ b/arch/arm/mm/copypage-feroceon.S | |||
@@ -0,0 +1,95 @@ | |||
1 | /* | ||
2 | * linux/arch/arm/lib/copypage-feroceon.S | ||
3 | * | ||
4 | * Copyright (C) 2008 Marvell Semiconductors | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License version 2 as | ||
8 | * published by the Free Software Foundation. | ||
9 | * | ||
10 | * This handles copy_user_page and clear_user_page on Feroceon | ||
11 | * more optimally than the generic implementations. | ||
12 | */ | ||
13 | #include <linux/linkage.h> | ||
14 | #include <linux/init.h> | ||
15 | #include <asm/asm-offsets.h> | ||
16 | |||
17 | .text | ||
18 | .align 5 | ||
19 | |||
20 | ENTRY(feroceon_copy_user_page) | ||
21 | stmfd sp!, {r4-r9, lr} | ||
22 | mov ip, #PAGE_SZ | ||
23 | 1: mov lr, r1 | ||
24 | ldmia r1!, {r2 - r9} | ||
25 | pld [lr, #32] | ||
26 | pld [lr, #64] | ||
27 | pld [lr, #96] | ||
28 | pld [lr, #128] | ||
29 | pld [lr, #160] | ||
30 | pld [lr, #192] | ||
31 | pld [lr, #224] | ||
32 | stmia r0, {r2 - r9} | ||
33 | ldmia r1!, {r2 - r9} | ||
34 | mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line | ||
35 | add r0, r0, #32 | ||
36 | stmia r0, {r2 - r9} | ||
37 | ldmia r1!, {r2 - r9} | ||
38 | mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line | ||
39 | add r0, r0, #32 | ||
40 | stmia r0, {r2 - r9} | ||
41 | ldmia r1!, {r2 - r9} | ||
42 | mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line | ||
43 | add r0, r0, #32 | ||
44 | stmia r0, {r2 - r9} | ||
45 | ldmia r1!, {r2 - r9} | ||
46 | mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line | ||
47 | add r0, r0, #32 | ||
48 | stmia r0, {r2 - r9} | ||
49 | ldmia r1!, {r2 - r9} | ||
50 | mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line | ||
51 | add r0, r0, #32 | ||
52 | stmia r0, {r2 - r9} | ||
53 | ldmia r1!, {r2 - r9} | ||
54 | mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line | ||
55 | add r0, r0, #32 | ||
56 | stmia r0, {r2 - r9} | ||
57 | ldmia r1!, {r2 - r9} | ||
58 | mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line | ||
59 | add r0, r0, #32 | ||
60 | stmia r0, {r2 - r9} | ||
61 | subs ip, ip, #(32 * 8) | ||
62 | mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line | ||
63 | add r0, r0, #32 | ||
64 | bne 1b | ||
65 | mcr p15, 0, ip, c7, c10, 4 @ drain WB | ||
66 | ldmfd sp!, {r4-r9, pc} | ||
67 | |||
68 | .align 5 | ||
69 | |||
70 | ENTRY(feroceon_clear_user_page) | ||
71 | stmfd sp!, {r4-r7, lr} | ||
72 | mov r1, #PAGE_SZ/32 | ||
73 | mov r2, #0 | ||
74 | mov r3, #0 | ||
75 | mov r4, #0 | ||
76 | mov r5, #0 | ||
77 | mov r6, #0 | ||
78 | mov r7, #0 | ||
79 | mov ip, #0 | ||
80 | mov lr, #0 | ||
81 | 1: stmia r0, {r2-r7, ip, lr} | ||
82 | subs r1, r1, #1 | ||
83 | mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line | ||
84 | add r0, r0, #32 | ||
85 | bne 1b | ||
86 | mcr p15, 0, r1, c7, c10, 4 @ drain WB | ||
87 | ldmfd sp!, {r4-r7, pc} | ||
88 | |||
89 | __INITDATA | ||
90 | |||
91 | .type feroceon_user_fns, #object | ||
92 | ENTRY(feroceon_user_fns) | ||
93 | .long feroceon_clear_user_page | ||
94 | .long feroceon_copy_user_page | ||
95 | .size feroceon_user_fns, . - feroceon_user_fns | ||