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authorPaul Mundt <lethal@linux-sh.org>2010-02-17 21:17:02 +0900
committerPaul Mundt <lethal@linux-sh.org>2010-02-17 21:17:02 +0900
commitd53a0d33bc3a50ea0e8dd1680a2e8435770b162a (patch)
tree7f7959c3aab789afe77d16616ba1246edf0b305a /arch/sh/include/asm/mmu.h
parentsh: Fix up dynamically created write-through PMB mappings. (diff)
downloadlinux-dev-d53a0d33bc3a50ea0e8dd1680a2e8435770b162a.tar.xz
linux-dev-d53a0d33bc3a50ea0e8dd1680a2e8435770b162a.zip
sh: PMB locking overhaul.
This implements some locking for the PMB code. A high level rwlock is added for dealing with rw accesses on the entry map while a per-entry data structure spinlock is added to deal with the PMB entry changing out from underneath us. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to '')
-rw-r--r--arch/sh/include/asm/mmu.h18
1 files changed, 0 insertions, 18 deletions
diff --git a/arch/sh/include/asm/mmu.h b/arch/sh/include/asm/mmu.h
index 5453169bf052..e42c4e2a41df 100644
--- a/arch/sh/include/asm/mmu.h
+++ b/arch/sh/include/asm/mmu.h
@@ -53,24 +53,6 @@ typedef struct {
#endif
} mm_context_t;
-struct pmb_entry;
-
-struct pmb_entry {
- unsigned long vpn;
- unsigned long ppn;
- unsigned long flags;
- unsigned long size;
-
- /*
- * 0 .. NR_PMB_ENTRIES for specific entry selection, or
- * PMB_NO_ENTRY to search for a free one
- */
- int entry;
-
- /* Adjacent entry link for contiguous multi-entry mappings */
- struct pmb_entry *link;
-};
-
#ifdef CONFIG_PMB
/* arch/sh/mm/pmb.c */
long pmb_remap(unsigned long virt, unsigned long phys,