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authorPaul Mundt <lethal@linux-sh.org>2006-09-27 15:16:42 +0900
committerPaul Mundt <lethal@linux-sh.org>2006-09-27 15:16:42 +0900
commitd7cdc9e8ac82c43fdcd4fde6b5b53d2dcba7f707 (patch)
tree2489b1831a1b5818af0927e4d3c8933bf7d05f31 /include/asm-sh/mmu.h
parentsh: page table alloc cleanups and page fault optimizations. (diff)
downloadlinux-dev-d7cdc9e8ac82c43fdcd4fde6b5b53d2dcba7f707.tar.xz
linux-dev-d7cdc9e8ac82c43fdcd4fde6b5b53d2dcba7f707.zip
sh: ioremap() overhaul.
ioremap() overhaul. Add support for transparent PMB mapping, get rid of p3_ioremap(), etc. Also drop ioremap() and iounmap() routines from the machvec, as everyone can use the generic ioremap() API instead. For PCI memory apertures and other special cases, use the pci_iomap() API, as boards are already required to get the mapping right there. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to '')
-rw-r--r--include/asm-sh/mmu.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/include/asm-sh/mmu.h b/include/asm-sh/mmu.h
index 91c884634276..ec09589fa6ca 100644
--- a/include/asm-sh/mmu.h
+++ b/include/asm-sh/mmu.h
@@ -50,6 +50,8 @@ typedef unsigned long mm_context_t;
#define PMB_NO_ENTRY (-1)
+struct pmb_entry;
+
struct pmb_entry {
unsigned long vpn;
unsigned long ppn;
@@ -60,16 +62,23 @@ struct pmb_entry {
* PMB_NO_ENTRY to search for a free one
*/
int entry;
+
+ struct pmb_entry *next;
+ /* Adjacent entry link for contiguous multi-entry mappings */
+ struct pmb_entry *link;
};
/* arch/sh/mm/pmb.c */
int __set_pmb_entry(unsigned long vpn, unsigned long ppn,
unsigned long flags, int *entry);
-void set_pmb_entry(struct pmb_entry *pmbe);
+int set_pmb_entry(struct pmb_entry *pmbe);
void clear_pmb_entry(struct pmb_entry *pmbe);
struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
unsigned long flags);
void pmb_free(struct pmb_entry *pmbe);
+long pmb_remap(unsigned long virt, unsigned long phys,
+ unsigned long size, unsigned long flags);
+void pmb_unmap(unsigned long addr);
#endif /* __MMU_H */