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author | David S. Miller <davem@davemloft.net> | 2010-12-27 01:37:05 -0500 |
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committer | David S. Miller <davem@davemloft.net> | 2010-12-27 01:37:05 -0500 |
commit | 17f7f4d9fcce8f1b75b5f735569309dee7665968 (patch) | |
tree | 14d7e49ca0053a0fcab3c33b5023bf3f90c5c08a /arch/arm/mm/proc-macros.S | |
parent | 041110a439e21cd40709ead4ffbfa8034619ad77 (diff) | |
parent | d7c1255a3a21e98bdc64df8ccf005a174d7e6289 (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
net/ipv4/fib_frontend.c
Diffstat (limited to 'arch/arm/mm/proc-macros.S')
-rw-r--r-- | arch/arm/mm/proc-macros.S | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S index 7d63beaf9745..b795afd0a2c6 100644 --- a/arch/arm/mm/proc-macros.S +++ b/arch/arm/mm/proc-macros.S | |||
@@ -61,17 +61,27 @@ | |||
61 | .endm | 61 | .endm |
62 | 62 | ||
63 | /* | 63 | /* |
64 | * cache_line_size - get the cache line size from the CSIDR register | 64 | * dcache_line_size - get the minimum D-cache line size from the CTR register |
65 | * (available on ARMv7+). It assumes that the CSSR register was configured | 65 | * on ARMv7. |
66 | * to access the L1 data cache CSIDR. | ||
67 | */ | 66 | */ |
68 | .macro dcache_line_size, reg, tmp | 67 | .macro dcache_line_size, reg, tmp |
69 | mrc p15, 1, \tmp, c0, c0, 0 @ read CSIDR | 68 | mrc p15, 0, \tmp, c0, c0, 1 @ read ctr |
70 | and \tmp, \tmp, #7 @ cache line size encoding | 69 | lsr \tmp, \tmp, #16 |
71 | mov \reg, #16 @ size offset | 70 | and \tmp, \tmp, #0xf @ cache line size encoding |
71 | mov \reg, #4 @ bytes per word | ||
72 | mov \reg, \reg, lsl \tmp @ actual cache line size | 72 | mov \reg, \reg, lsl \tmp @ actual cache line size |
73 | .endm | 73 | .endm |
74 | 74 | ||
75 | /* | ||
76 | * icache_line_size - get the minimum I-cache line size from the CTR register | ||
77 | * on ARMv7. | ||
78 | */ | ||
79 | .macro icache_line_size, reg, tmp | ||
80 | mrc p15, 0, \tmp, c0, c0, 1 @ read ctr | ||
81 | and \tmp, \tmp, #0xf @ cache line size encoding | ||
82 | mov \reg, #4 @ bytes per word | ||
83 | mov \reg, \reg, lsl \tmp @ actual cache line size | ||
84 | .endm | ||
75 | 85 | ||
76 | /* | 86 | /* |
77 | * Sanity check the PTE configuration for the code below - which makes | 87 | * Sanity check the PTE configuration for the code below - which makes |