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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-03-08 20:21:04 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-03-08 20:21:04 +0000
commit988addf82e4c03739375279de73929580a2d4a6a (patch)
tree989ae1cd4e264bbad80c65f04480486246e7b9f3 /arch/sh/include/asm/mmu.h
parent004c1c7096659d352b83047a7593e91d8a30e3c5 (diff)
parent25cf84cf377c0aae5dbcf937ea89bc7893db5176 (diff)
Merge branch 'origin' into devel-stable
Conflicts: arch/arm/mach-mx2/devices.c arch/arm/mach-mx2/devices.h sound/soc/pxa/pxa-ssp.c
Diffstat (limited to 'arch/sh/include/asm/mmu.h')
-rw-r--r--arch/sh/include/asm/mmu.h64
1 files changed, 44 insertions, 20 deletions
diff --git a/arch/sh/include/asm/mmu.h b/arch/sh/include/asm/mmu.h
index c7426ad9926..19fe84550b4 100644
--- a/arch/sh/include/asm/mmu.h
+++ b/arch/sh/include/asm/mmu.h
@@ -11,7 +11,9 @@
#define PMB_ADDR 0xf6100000
#define PMB_DATA 0xf7100000
-#define PMB_ENTRY_MAX 16
+
+#define NR_PMB_ENTRIES 16
+
#define PMB_E_MASK 0x0000000f
#define PMB_E_SHIFT 8
@@ -25,11 +27,15 @@
#define PMB_C 0x00000008
#define PMB_WT 0x00000001
#define PMB_UB 0x00000200
+#define PMB_CACHE_MASK (PMB_C | PMB_WT | PMB_UB)
#define PMB_V 0x00000100
#define PMB_NO_ENTRY (-1)
#ifndef __ASSEMBLY__
+#include <linux/errno.h>
+#include <linux/threads.h>
+#include <asm/page.h>
/* Default "unsigned long" context */
typedef unsigned long mm_context_id_t[NR_CPUS];
@@ -47,29 +53,47 @@ typedef struct {
#endif
} mm_context_t;
-struct pmb_entry;
+#ifdef CONFIG_PMB
+/* arch/sh/mm/pmb.c */
+bool __in_29bit_mode(void);
+
+void pmb_init(void);
+int pmb_bolt_mapping(unsigned long virt, phys_addr_t phys,
+ unsigned long size, pgprot_t prot);
+void __iomem *pmb_remap_caller(phys_addr_t phys, unsigned long size,
+ pgprot_t prot, void *caller);
+int pmb_unmap(void __iomem *addr);
-struct pmb_entry {
- unsigned long vpn;
- unsigned long ppn;
- unsigned long flags;
+#else
- /*
- * 0 .. NR_PMB_ENTRIES for specific entry selection, or
- * PMB_NO_ENTRY to search for a free one
- */
- int entry;
+static inline void __iomem *
+pmb_remap_caller(phys_addr_t phys, unsigned long size,
+ pgprot_t prot, void *caller)
+{
+ return NULL;
+}
- struct pmb_entry *next;
- /* Adjacent entry link for contiguous multi-entry mappings */
- struct pmb_entry *link;
-};
+static inline int pmb_unmap(void __iomem *addr)
+{
+ return -EINVAL;
+}
+
+#define pmb_init(addr) do { } while (0)
+
+#ifdef CONFIG_29BIT
+#define __in_29bit_mode() (1)
+#else
+#define __in_29bit_mode() (0)
+#endif
+
+#endif /* CONFIG_PMB */
+
+static inline void __iomem *
+pmb_remap(phys_addr_t phys, unsigned long size, pgprot_t prot)
+{
+ return pmb_remap_caller(phys, size, prot, __builtin_return_address(0));
+}
-/* arch/sh/mm/pmb.c */
-long pmb_remap(unsigned long virt, unsigned long phys,
- unsigned long size, unsigned long flags);
-void pmb_unmap(unsigned long addr);
-int pmb_init(void);
#endif /* __ASSEMBLY__ */
#endif /* __MMU_H */