vserver 2.0 rc7

[linux-2.6.git] / include / asm-sparc / pgtable.h

diff --git a/include/asm-sparc/pgtable.h b/include/asm-sparc/pgtable.h
index fa53736..40ed30a 100644 (file)
--- a/include/asm-sparc/pgtable.h
+++ b/include/asm-sparc/pgtable.h
@@ -9,6 +9,8 @@
  *  Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
  */
 
+#include <asm-generic/4level-fixup.h>
+
 #include <linux/config.h>
 #include <linux/spinlock.h>
 #include <linux/swap.h>
@@ -21,7 +23,6 @@
 #include <asm/pgtsrmmu.h>
 #include <asm/vac-ops.h>
 #include <asm/oplib.h>
-#include <asm/sbus.h>
 #include <asm/btfixup.h>
 #include <asm/system.h>
 
@@ -33,48 +34,6 @@ struct page;
 extern void load_mmu(void);
 extern unsigned long calc_highpages(void);
 
-/* Routines for data transfer buffers. */
-BTFIXUPDEF_CALL(char *, mmu_lockarea, char *, unsigned long)
-BTFIXUPDEF_CALL(void,   mmu_unlockarea, char *, unsigned long)
-
-#define mmu_lockarea(vaddr,len) BTFIXUP_CALL(mmu_lockarea)(vaddr,len)
-#define mmu_unlockarea(vaddr,len) BTFIXUP_CALL(mmu_unlockarea)(vaddr,len)
-
-/* These are implementations for sbus_map_sg/sbus_unmap_sg... collapse later */
-BTFIXUPDEF_CALL(__u32, mmu_get_scsi_one, char *, unsigned long, struct sbus_bus *sbus)
-BTFIXUPDEF_CALL(void,  mmu_get_scsi_sgl, struct scatterlist *, int, struct sbus_bus *sbus)
-BTFIXUPDEF_CALL(void,  mmu_release_scsi_one, __u32, unsigned long, struct sbus_bus *sbus)
-BTFIXUPDEF_CALL(void,  mmu_release_scsi_sgl, struct scatterlist *, int, struct sbus_bus *sbus)
-
-#define mmu_get_scsi_one(vaddr,len,sbus) BTFIXUP_CALL(mmu_get_scsi_one)(vaddr,len,sbus)
-#define mmu_get_scsi_sgl(sg,sz,sbus) BTFIXUP_CALL(mmu_get_scsi_sgl)(sg,sz,sbus)
-#define mmu_release_scsi_one(vaddr,len,sbus) BTFIXUP_CALL(mmu_release_scsi_one)(vaddr,len,sbus)
-#define mmu_release_scsi_sgl(sg,sz,sbus) BTFIXUP_CALL(mmu_release_scsi_sgl)(sg,sz,sbus)
-
-/*
- * mmu_map/unmap are provided by iommu/iounit; Invalid to call on IIep.
- *
- * The mmu_map_dma_area establishes two mappings in one go.
- * These mappings point to pages normally mapped at 'va' (linear address).
- * First mapping is for CPU visible address at 'a', uncached.
- * This is an alias, but it works because it is an uncached mapping.
- * Second mapping is for device visible address, or "bus" address.
- * The bus address is returned at '*pba'.
- *
- * These functions seem distinct, but are hard to split. On sun4c,
- * at least for now, 'a' is equal to bus address, and retured in *pba.
- * On sun4m, page attributes depend on the CPU type, so we have to
- * know if we are mapping RAM or I/O, so it has to be an additional argument
- * to a separate mapping function for CPU visible mappings.
- */
-BTFIXUPDEF_CALL(int,  mmu_map_dma_area, dma_addr_t *, unsigned long, unsigned long, int len)
-BTFIXUPDEF_CALL(struct page *, mmu_translate_dvma, unsigned long busa)
-BTFIXUPDEF_CALL(void,  mmu_unmap_dma_area, unsigned long busa, int len)
-
-#define mmu_map_dma_area(pba,va,a,len) BTFIXUP_CALL(mmu_map_dma_area)(pba,va,a,len)
-#define mmu_unmap_dma_area(ba,len) BTFIXUP_CALL(mmu_unmap_dma_area)(ba,len)
-#define mmu_translate_dvma(ba)     BTFIXUP_CALL(mmu_translate_dvma)(ba)
-
 BTFIXUPDEF_SIMM13(pgdir_shift)
 BTFIXUPDEF_SETHI(pgdir_size)
 BTFIXUPDEF_SETHI(pgdir_mask)
@@ -104,7 +63,7 @@ BTFIXUPDEF_INT(page_kernel)
 #define PTRS_PER_PMD           BTFIXUP_SIMM13(ptrs_per_pmd)
 #define PTRS_PER_PGD           BTFIXUP_SIMM13(ptrs_per_pgd)
 #define USER_PTRS_PER_PGD      BTFIXUP_SIMM13(user_ptrs_per_pgd)
-#define FIRST_USER_PGD_NR      0
+#define FIRST_USER_ADDRESS     0
 #define PTE_SIZE               (PTRS_PER_PTE*4)
 
 #define PAGE_NONE      __pgprot(BTFIXUP_INT(page_none))
@@ -191,6 +150,7 @@ BTFIXUPDEF_CALL_CONST(unsigned long, pgd_page, pgd_t)
 BTFIXUPDEF_SETHI(none_mask)
 BTFIXUPDEF_CALL_CONST(int, pte_present, pte_t)
 BTFIXUPDEF_CALL(void, pte_clear, pte_t *)
+BTFIXUPDEF_CALL(int, pte_read, pte_t)
 
 extern __inline__ int pte_none(pte_t pte)
 {
@@ -198,7 +158,8 @@ extern __inline__ int pte_none(pte_t pte)
 }
 
 #define pte_present(pte) BTFIXUP_CALL(pte_present)(pte)
-#define pte_clear(pte) BTFIXUP_CALL(pte_clear)(pte)
+#define pte_clear(mm,addr,pte) BTFIXUP_CALL(pte_clear)(pte)
+#define pte_read(pte) BTFIXUP_CALL(pte_read)(pte)
 
 BTFIXUPDEF_CALL_CONST(int, pmd_bad, pmd_t)
 BTFIXUPDEF_CALL_CONST(int, pmd_present, pmd_t)
@@ -359,6 +320,7 @@ extern unsigned int pg_iobits;
 BTFIXUPDEF_CALL(void, set_pte, pte_t *, pte_t)
 
 #define set_pte(ptep,pteval) BTFIXUP_CALL(set_pte)(ptep,pteval)
+#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
 
 struct seq_file;
 BTFIXUPDEF_CALL(void, mmu_info, struct seq_file *)
@@ -473,8 +435,20 @@ extern unsigned long *sparc_valid_addr_bitmap;
 #define kern_addr_valid(addr) \
        (test_bit(__pa((unsigned long)(addr))>>20, sparc_valid_addr_bitmap))
 
-extern int io_remap_page_range(struct vm_area_struct *vma, unsigned long from, unsigned long to,
+extern int io_remap_page_range(struct vm_area_struct *vma,
+                              unsigned long from, unsigned long to,
                               unsigned long size, pgprot_t prot, int space);
+extern int io_remap_pfn_range(struct vm_area_struct *vma,
+                             unsigned long from, unsigned long pfn,
+                             unsigned long size, pgprot_t prot);
+
+/*
+ * For sparc32&64, the pfn in io_remap_pfn_range() carries <iospace> in
+ * its high 4 bits.  These macros/functions put it there or get it from there.
+ */
+#define MK_IOSPACE_PFN(space, pfn)     (pfn | (space << (BITS_PER_LONG - 4)))
+#define GET_IOSPACE(pfn)               (pfn >> (BITS_PER_LONG - 4))
+#define GET_PFN(pfn)                   (pfn & 0x0fffffffUL)
 
 #include <asm-generic/pgtable.h>