[PATCH] powerpc: Fix buglet with MMU hash management

[powerpc.git] / include / asm-powerpc / mmu.h

diff --git a/include/asm-powerpc/mmu.h b/include/asm-powerpc/mmu.h
index c1b4bba..8853974 100644 (file)
--- a/include/asm-powerpc/mmu.h
+++ b/include/asm-powerpc/mmu.h
@@ -1,5 +1,6 @@
 #ifndef _ASM_POWERPC_MMU_H_
 #define _ASM_POWERPC_MMU_H_
+#ifdef __KERNEL__
 
 #ifndef CONFIG_PPC64
 #include <asm-ppc/mmu.h>
@@ -33,7 +34,8 @@
 
 /* Location of cpu0's segment table */
 #define STAB0_PAGE     0x6
-#define STAB0_PHYS_ADDR        (STAB0_PAGE<<12)
+#define STAB0_OFFSET   (STAB0_PAGE << 12)
+#define STAB0_PHYS_ADDR        (STAB0_OFFSET + PHYSICAL_START)
 
 #ifndef __ASSEMBLY__
 extern char initial_stab[];
@@ -94,6 +96,8 @@ extern char initial_stab[];
 #define HPTE_R_FLAGS           ASM_CONST(0x00000000000003ff)
 #define HPTE_R_PP              ASM_CONST(0x0000000000000003)
 #define HPTE_R_N               ASM_CONST(0x0000000000000004)
+#define HPTE_R_C               ASM_CONST(0x0000000000000080)
+#define HPTE_R_R               ASM_CONST(0x0000000000000100)
 
 /* Values for PP (assumes Ks=0, Kp=1) */
 /* pp0 will always be 0 for linux     */
@@ -110,6 +114,7 @@ typedef struct {
 } hpte_t;
 
 extern hpte_t *htab_address;
+extern unsigned long htab_size_bytes;
 extern unsigned long htab_hash_mask;
 
 /*
@@ -220,7 +225,8 @@ extern int __hash_page_64K(unsigned long ea, unsigned long access,
                           unsigned int local);
 struct mm_struct;
 extern int hash_huge_page(struct mm_struct *mm, unsigned long access,
-                         unsigned long ea, unsigned long vsid, int local);
+                         unsigned long ea, unsigned long vsid, int local,
+                         unsigned long trap);
 
 extern void htab_finish_init(void);
 extern int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
@@ -232,7 +238,6 @@ extern void htab_initialize_secondary(void);
 extern void hpte_init_native(void);
 extern void hpte_init_lpar(void);
 extern void hpte_init_iSeries(void);
-extern void mm_init_ppc64(void);
 
 extern long pSeries_lpar_hpte_insert(unsigned long hpte_group,
                                     unsigned long va, unsigned long prpn,
@@ -357,6 +362,7 @@ typedef struct {
 #ifdef CONFIG_HUGETLB_PAGE
        u16 low_htlb_areas, high_htlb_areas;
 #endif
+       unsigned long vdso_base;
 } mm_context_t;
 
 
@@ -393,7 +399,12 @@ static inline unsigned long get_vsid(unsigned long context, unsigned long ea)
 #define VSID_SCRAMBLE(pvsid)   (((pvsid) * VSID_MULTIPLIER) % VSID_MODULUS)
 #define KERNEL_VSID(ea)                VSID_SCRAMBLE(GET_ESID(ea))
 
+/* Physical address used by some IO functions */
+typedef unsigned long phys_addr_t;
+
+
 #endif /* __ASSEMBLY */
 
 #endif /* CONFIG_PPC64 */
+#endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_MMU_H_ */