Merge branch 'drm-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...

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

diff --git a/include/asm-powerpc/mmu.h b/include/asm-powerpc/mmu.h
index 29b0bb0..41c8c9c 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;
 
 /*
@@ -160,6 +165,16 @@ struct mmu_psize_def
 extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
 extern int mmu_linear_psize;
 extern int mmu_virtual_psize;
+extern int mmu_vmalloc_psize;
+extern int mmu_io_psize;
+
+/*
+ * If the processor supports 64k normal pages but not 64k cache
+ * inhibited pages, we have to be prepared to switch processes
+ * to use 4k pages when they create cache-inhibited mappings.
+ * If this is the case, mmu_ci_restrictions will be set to 1.
+ */
+extern int mmu_ci_restrictions;
 
 #ifdef CONFIG_HUGETLB_PAGE
 /*
@@ -223,7 +238,6 @@ extern int hash_huge_page(struct mm_struct *mm, unsigned long access,
                          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,
                             unsigned long pstart, unsigned long mode,
                             int psize);
@@ -233,25 +247,10 @@ 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,
-                                    unsigned long rflags,
-                                    unsigned long vflags, int psize);
-
-extern long native_hpte_insert(unsigned long hpte_group,
-                              unsigned long va, unsigned long prpn,
-                              unsigned long rflags,
-                              unsigned long vflags, int psize);
-
-extern long iSeries_hpte_insert(unsigned long hpte_group,
-                               unsigned long va, unsigned long prpn,
-                               unsigned long rflags,
-                               unsigned long vflags, int psize);
 
 extern void stabs_alloc(void);
 extern void slb_initialize(void);
+extern void slb_flush_and_rebolt(void);
 extern void stab_initialize(unsigned long stab);
 
 #endif /* __ASSEMBLY__ */
@@ -355,9 +354,12 @@ typedef unsigned long mm_context_id_t;
 
 typedef struct {
        mm_context_id_t id;
+       u16 user_psize;                 /* page size index */
+       u16 sllp;                       /* SLB entry page size encoding */
 #ifdef CONFIG_HUGETLB_PAGE
        u16 low_htlb_areas, high_htlb_areas;
 #endif
+       unsigned long vdso_base;
 } mm_context_t;
 
 
@@ -394,7 +396,12 @@ 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_ */