diff options
Diffstat (limited to 'arch/mn10300/mm/cache-inv-icache.c')
-rw-r--r-- | arch/mn10300/mm/cache-inv-icache.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/arch/mn10300/mm/cache-inv-icache.c b/arch/mn10300/mm/cache-inv-icache.c index 4a3f7afcfe5..a8933a60b2d 100644 --- a/arch/mn10300/mm/cache-inv-icache.c +++ b/arch/mn10300/mm/cache-inv-icache.c | |||
@@ -12,6 +12,8 @@ | |||
12 | #include <linux/module.h> | 12 | #include <linux/module.h> |
13 | #include <linux/mm.h> | 13 | #include <linux/mm.h> |
14 | #include <asm/cacheflush.h> | 14 | #include <asm/cacheflush.h> |
15 | #include <asm/smp.h> | ||
16 | #include "cache-smp.h" | ||
15 | 17 | ||
16 | /** | 18 | /** |
17 | * flush_icache_page_range - Flush dcache and invalidate icache for part of a | 19 | * flush_icache_page_range - Flush dcache and invalidate icache for part of a |
@@ -66,7 +68,8 @@ static void flush_icache_page_range(unsigned long start, unsigned long end) | |||
66 | addr = page_to_phys(page); | 68 | addr = page_to_phys(page); |
67 | 69 | ||
68 | /* invalidate the icache coverage on that region */ | 70 | /* invalidate the icache coverage on that region */ |
69 | mn10300_icache_inv_range2(addr + off, size); | 71 | mn10300_local_icache_inv_range2(addr + off, size); |
72 | smp_cache_call(SMP_ICACHE_INV_FLUSH_RANGE, start, end); | ||
70 | } | 73 | } |
71 | 74 | ||
72 | /** | 75 | /** |
@@ -81,28 +84,31 @@ static void flush_icache_page_range(unsigned long start, unsigned long end) | |||
81 | void flush_icache_range(unsigned long start, unsigned long end) | 84 | void flush_icache_range(unsigned long start, unsigned long end) |
82 | { | 85 | { |
83 | unsigned long start_page, end_page; | 86 | unsigned long start_page, end_page; |
87 | unsigned long flags; | ||
88 | |||
89 | flags = smp_lock_cache(); | ||
84 | 90 | ||
85 | if (end > 0x80000000UL) { | 91 | if (end > 0x80000000UL) { |
86 | /* addresses above 0xa0000000 do not go through the cache */ | 92 | /* addresses above 0xa0000000 do not go through the cache */ |
87 | if (end > 0xa0000000UL) { | 93 | if (end > 0xa0000000UL) { |
88 | end = 0xa0000000UL; | 94 | end = 0xa0000000UL; |
89 | if (start >= end) | 95 | if (start >= end) |
90 | return; | 96 | goto done; |
91 | } | 97 | } |
92 | 98 | ||
93 | /* kernel addresses between 0x80000000 and 0x9fffffff do not | 99 | /* kernel addresses between 0x80000000 and 0x9fffffff do not |
94 | * require page tables, so we just map such addresses | 100 | * require page tables, so we just map such addresses |
95 | * directly */ | 101 | * directly */ |
96 | start_page = (start >= 0x80000000UL) ? start : 0x80000000UL; | 102 | start_page = (start >= 0x80000000UL) ? start : 0x80000000UL; |
97 | mn10300_dcache_flush_range(start_page, end); | ||
98 | mn10300_icache_inv_range(start_page, end); | 103 | mn10300_icache_inv_range(start_page, end); |
104 | smp_cache_call(SMP_ICACHE_INV_FLUSH_RANGE, start, end); | ||
99 | if (start_page == start) | 105 | if (start_page == start) |
100 | return; | 106 | goto done; |
101 | end = start_page; | 107 | end = start_page; |
102 | } | 108 | } |
103 | 109 | ||
104 | start_page = start & PAGE_MASK; | 110 | start_page = start & PAGE_MASK; |
105 | end_page = end & PAGE_MASK; | 111 | end_page = (end - 1) & PAGE_MASK; |
106 | 112 | ||
107 | if (start_page == end_page) { | 113 | if (start_page == end_page) { |
108 | /* the first and last bytes are on the same page */ | 114 | /* the first and last bytes are on the same page */ |
@@ -113,7 +119,11 @@ void flush_icache_range(unsigned long start, unsigned long end) | |||
113 | flush_icache_page_range(end_page, end); | 119 | flush_icache_page_range(end_page, end); |
114 | } else { | 120 | } else { |
115 | /* more than 2 pages; just flush the entire cache */ | 121 | /* more than 2 pages; just flush the entire cache */ |
116 | mn10300_icache_inv(); | 122 | mn10300_local_icache_inv(); |
123 | smp_cache_call(SMP_ICACHE_INV, 0, 0); | ||
117 | } | 124 | } |
125 | |||
126 | done: | ||
127 | smp_unlock_cache(flags); | ||
118 | } | 128 | } |
119 | EXPORT_SYMBOL(flush_icache_range); | 129 | EXPORT_SYMBOL(flush_icache_range); |