Signed-off-by: Bryan Wu <[EMAIL PROTECTED]>
---
include/asm-blackfin/pgtable.h | 44 +++++++++++++++++++++++++++++++--------
1 files changed, 35 insertions(+), 9 deletions(-)
diff --git a/include/asm-blackfin/pgtable.h b/include/asm-blackfin/pgtable.h
index 9328537..5a8f9e4 100644
--- a/include/asm-blackfin/pgtable.h
+++ b/include/asm-blackfin/pgtable.h
@@ -3,7 +3,8 @@
#include <asm-generic/4level-fixup.h>
-#include <asm/setup.h>
+#include <asm/page.h>
+#include <asm/cplb.h>
typedef pte_t *pte_addr_t;
/*
@@ -14,7 +15,12 @@ typedef pte_t *pte_addr_t;
#define pgd_bad(pgd) (0)
#define pgd_clear(pgdp)
#define kern_addr_valid(addr) (1)
-#define pmd_offset(a, b) ((void *)0)
+
+#define pmd_offset(a, b) ((void *)0)
+#define pmd_none(x) (!pmd_val(x))
+#define pmd_present(x) (pmd_val(x))
+#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0)
+#define pmd_bad(x) (pmd_val(x) & ~PAGE_MASK)
#define kern_addr_valid(addr) (1)
@@ -37,6 +43,32 @@ static inline int pte_file(pte_t pte)
return 0;
}
+#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
+#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval)
+
+/*
+ * Page assess control based on Blackfin CPLB management
+ */
+#define _PAGE_RD (CPLB_USER_RD)
+#define _PAGE_WR (CPLB_USER_WR)
+#define _PAGE_USER (CPLB_USER_RD | CPLB_USER_WR)
+#define _PAGE_ACCESSED CPLB_ALL_ACCESS
+#define _PAGE_DIRTY (CPLB_DIRTY)
+
+#define PTE_BIT_FUNC(fn, op) \
+ static inline pte_t pte_##fn(pte_t _pte) { _pte.pte op; return _pte; }
+
+PTE_BIT_FUNC(rdprotect, &= ~_PAGE_RD);
+PTE_BIT_FUNC(mkread, |= _PAGE_RD);
+PTE_BIT_FUNC(wrprotect, &= ~_PAGE_WR);
+PTE_BIT_FUNC(mkwrite, |= _PAGE_WR);
+PTE_BIT_FUNC(exprotect, &= ~_PAGE_USER);
+PTE_BIT_FUNC(mkexec, |= _PAGE_USER);
+PTE_BIT_FUNC(mkclean, &= ~_PAGE_DIRTY);
+PTE_BIT_FUNC(mkdirty, |= _PAGE_DIRTY);
+PTE_BIT_FUNC(mkold, &= ~_PAGE_ACCESSED);
+PTE_BIT_FUNC(mkyoung, |= _PAGE_ACCESSED);
+
/*
* ZERO_PAGE is a global shared page that is always zero: used
* for zero-mapped memory areas etc..
@@ -59,12 +91,6 @@ extern unsigned int kobjsize(const void *objp);
#define VMALLOC_START 0
#define VMALLOC_END 0xffffffff
-#define __HAVE_ARCH_ENTER_LAZY_CPU_MODE
-#define arch_enter_lazy_cpu_mode() do {} while (0)
-#define arch_leave_lazy_cpu_mode() do {} while (0)
-
-#define __HAVE_ARCH_ENTER_LAZY_MMU_MODE
-#define arch_enter_lazy_mmu_mode() do {} while (0)
-#define arch_leave_lazy_mmu_mode() do {} while (0)
+#include <asm-generic/pgtable.h>
#endif /* _BLACKFIN_PGTABLE_H */
--
1.5.0.5
-
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