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| author |   Paul Mundt <lethal@linux-sh.org> | 2010-02-17 21:17:02 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-02-17 21:17:02 +0900 |
| commit | d53a0d33bc3a50ea0e8dd1680a2e8435770b162a (patch) | |
| tree | 7f7959c3aab789afe77d16616ba1246edf0b305a /arch/sh/include | |
| parent | sh: Fix up dynamically created write-through PMB mappings. (diff) | |
| download | linux-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 'arch/sh/include')
| -rw-r--r-- | arch/sh/include/asm/mmu.h | 18 |
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, |