[ARM] 4394/1: ARMv7: Add the TLB range operations

[sfrench/cifs-2.6.git] / include / asm-arm / pgtable.h

diff --git a/include/asm-arm/pgtable.h b/include/asm-arm/pgtable.h
index ed8cb5963e99cde381f94171b1f59a98aa1805d8..21dec9f258d822d081a0e7da9251de908f5e0462 100644 (file)
--- a/include/asm-arm/pgtable.h
+++ b/include/asm-arm/pgtable.h
@@ -21,6 +21,7 @@
 
 #include <asm/memory.h>
 #include <asm/arch/vmalloc.h>
+#include <asm/pgtable-hwdef.h>
 
 /*
  * Just any arbitrary offset to the start of the vmalloc VM area: the
@@ -169,26 +170,34 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
 #define L_PTE_WRITE            (1 << 5)
 #define L_PTE_EXEC             (1 << 6)
 #define L_PTE_DIRTY            (1 << 7)
-#define L_PTE_COHERENT         (1 << 9)        /* I/O coherent (xsc3) */
-#define L_PTE_SHARED           (1 << 10)       /* shared between CPUs (v6) */
-#define L_PTE_ASID             (1 << 11)       /* non-global (use ASID, v6) */
+#define L_PTE_SHARED           (1 << 10)       /* shared(v6), coherent(xsc3) */
 
 #ifndef __ASSEMBLY__
 
 /*
- * The following macros handle the cache and bufferable bits...
+ * The pgprot_* and protection_map entries will be fixed up in runtime
+ * to include the cachable and bufferable bits based on memory policy,
+ * as well as any architecture dependent bits like global/ASID and SMP
+ * shared mapping bits.
  */
 #define _L_PTE_DEFAULT L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_CACHEABLE | L_PTE_BUFFERABLE
 #define _L_PTE_READ    L_PTE_USER | L_PTE_EXEC
 
+extern pgprot_t                pgprot_user;
 extern pgprot_t                pgprot_kernel;
 
-#define PAGE_NONE       __pgprot(_L_PTE_DEFAULT)
-#define PAGE_COPY       __pgprot(_L_PTE_DEFAULT | _L_PTE_READ)
-#define PAGE_SHARED     __pgprot(_L_PTE_DEFAULT | _L_PTE_READ | L_PTE_WRITE)
-#define PAGE_READONLY   __pgprot(_L_PTE_DEFAULT | _L_PTE_READ)
+#define PAGE_NONE      pgprot_user
+#define PAGE_COPY      __pgprot(pgprot_val(pgprot_user) | _L_PTE_READ)
+#define PAGE_SHARED    __pgprot(pgprot_val(pgprot_user) | _L_PTE_READ | \
+                                L_PTE_WRITE)
+#define PAGE_READONLY  __pgprot(pgprot_val(pgprot_user) | _L_PTE_READ)
 #define PAGE_KERNEL    pgprot_kernel
 
+#define __PAGE_NONE    __pgprot(_L_PTE_DEFAULT)
+#define __PAGE_COPY    __pgprot(_L_PTE_DEFAULT | _L_PTE_READ)
+#define __PAGE_SHARED  __pgprot(_L_PTE_DEFAULT | _L_PTE_READ | L_PTE_WRITE)
+#define __PAGE_READONLY        __pgprot(_L_PTE_DEFAULT | _L_PTE_READ)
+
 #endif /* __ASSEMBLY__ */
 
 /*
@@ -199,23 +208,23 @@ extern pgprot_t           pgprot_kernel;
  *  2) If we could do execute protection, then read is implied
  *  3) write implies read permissions
  */
-#define __P000  PAGE_NONE
-#define __P001  PAGE_READONLY
-#define __P010  PAGE_COPY
-#define __P011  PAGE_COPY
-#define __P100  PAGE_READONLY
-#define __P101  PAGE_READONLY
-#define __P110  PAGE_COPY
-#define __P111  PAGE_COPY
-
-#define __S000  PAGE_NONE
-#define __S001  PAGE_READONLY
-#define __S010  PAGE_SHARED
-#define __S011  PAGE_SHARED
-#define __S100  PAGE_READONLY
-#define __S101  PAGE_READONLY
-#define __S110  PAGE_SHARED
-#define __S111  PAGE_SHARED
+#define __P000  __PAGE_NONE
+#define __P001  __PAGE_READONLY
+#define __P010  __PAGE_COPY
+#define __P011  __PAGE_COPY
+#define __P100  __PAGE_READONLY
+#define __P101  __PAGE_READONLY
+#define __P110  __PAGE_COPY
+#define __P111  __PAGE_COPY
+
+#define __S000  __PAGE_NONE
+#define __S001  __PAGE_READONLY
+#define __S010  __PAGE_SHARED
+#define __S011  __PAGE_SHARED
+#define __S100  __PAGE_READONLY
+#define __S101  __PAGE_READONLY
+#define __S110  __PAGE_SHARED
+#define __S111  __PAGE_SHARED
 
 #ifndef __ASSEMBLY__
 /*
@@ -229,7 +238,7 @@ extern struct page *empty_zero_page;
 #define pfn_pte(pfn,prot)      (__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)))
 
 #define pte_none(pte)          (!pte_val(pte))
-#define pte_clear(mm,addr,ptep)        set_pte_at((mm),(addr),(ptep), __pte(0))
+#define pte_clear(mm,addr,ptep)        set_pte_ext(ptep, __pte(0), 0)
 #define pte_page(pte)          (pfn_to_page(pte_pfn(pte)))
 #define pte_offset_kernel(dir,addr)    (pmd_page_vaddr(*(dir)) + __pte_index(addr))
 #define pte_offset_map(dir,addr)       (pmd_page_vaddr(*(dir)) + __pte_index(addr))
@@ -237,8 +246,11 @@ extern struct page *empty_zero_page;
 #define pte_unmap(pte)         do { } while (0)
 #define pte_unmap_nested(pte)  do { } while (0)
 
-#define set_pte(ptep, pte)     cpu_set_pte(ptep,pte)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+#define set_pte_ext(ptep,pte,ext) cpu_set_pte_ext(ptep,pte,ext)
+
+#define set_pte_at(mm,addr,ptep,pteval) do { \
+       set_pte_ext(ptep, pteval, (addr) >= PAGE_OFFSET ? 0 : PTE_EXT_NG); \
+ } while (0)
 
 /*
  * The following only work if pte_present() is true.
@@ -383,10 +395,6 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
 #define io_remap_pfn_range(vma,from,pfn,size,prot) \
                remap_pfn_range(vma, from, pfn, size, prot)
 
-#define MK_IOSPACE_PFN(space, pfn)     (pfn)
-#define GET_IOSPACE(pfn)               0
-#define GET_PFN(pfn)                   (pfn)
-
 #define pgtable_cache_init() do { } while (0)
 
 #endif /* !__ASSEMBLY__ */