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Diffstat (limited to 'arch/sparc/include/asm/pgtable_32.h')
-rw-r--r--arch/sparc/include/asm/pgtable_32.h113
1 files changed, 57 insertions, 56 deletions
diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
index 632cdb959542..a9f802d1dd64 100644
--- a/arch/sparc/include/asm/pgtable_32.h
+++ b/arch/sparc/include/asm/pgtable_32.h
@@ -21,7 +21,7 @@
#define PGDIR_MASK (~(PGDIR_SIZE-1))
#define PGDIR_ALIGN(__addr) (((__addr) + ~PGDIR_MASK) & PGDIR_MASK)
-#ifndef __ASSEMBLY__
+#ifndef __ASSEMBLER__
#include <asm-generic/pgtable-nopud.h>
#include <linux/spinlock.h>
@@ -48,7 +48,6 @@ unsigned long __init bootmem_init(unsigned long *pages_avail);
#define PTRS_PER_PMD 64
#define PTRS_PER_PGD 256
#define USER_PTRS_PER_PGD PAGE_OFFSET / PGDIR_SIZE
-#define FIRST_USER_ADDRESS 0UL
#define PTE_SIZE (PTRS_PER_PTE*4)
#define PAGE_NONE SRMMU_PAGE_NONE
@@ -65,25 +64,6 @@ void paging_init(void);
extern unsigned long ptr_in_current_pgd;
-/* xwr */
-#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
-
/* First physical page can be anywhere, the following is needed so that
* va-->pa and vice versa conversions work properly without performance
* hit for all __pa()/__va() operations.
@@ -121,18 +101,21 @@ static inline void set_pte(pte_t *ptep, pte_t pteval)
srmmu_swap((unsigned long *)ptep, pte_val(pteval));
}
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
-
static inline int srmmu_device_memory(unsigned long x)
{
return ((x & 0xF0000000) != 0);
}
+static inline unsigned long pmd_pfn(pmd_t pmd)
+{
+ return (pmd_val(pmd) & SRMMU_PTD_PMASK) >> (PAGE_SHIFT-4);
+}
+
static inline struct page *pmd_page(pmd_t pmd)
{
if (srmmu_device_memory(pmd_val(pmd)))
BUG();
- return pfn_to_page((pmd_val(pmd) & SRMMU_PTD_PMASK) >> (PAGE_SHIFT-4));
+ return pfn_to_page(pmd_pfn(pmd));
}
static inline unsigned long __pmd_page(pmd_t pmd)
@@ -152,13 +135,13 @@ static inline unsigned long pmd_page_vaddr(pmd_t pmd)
return (unsigned long)__nocache_va(v << 4);
}
-static inline unsigned long pud_page_vaddr(pud_t pud)
+static inline pmd_t *pud_pgtable(pud_t pud)
{
if (srmmu_device_memory(pud_val(pud))) {
- return ~0;
+ return (pmd_t *)~0;
} else {
unsigned long v = pud_val(pud) & SRMMU_PTD_PMASK;
- return (unsigned long)__nocache_va(v << 4);
+ return (pmd_t *)__nocache_va(v << 4);
}
}
@@ -256,7 +239,7 @@ static inline pte_t pte_mkold(pte_t pte)
return __pte(pte_val(pte) & ~SRMMU_REF);
}
-static inline pte_t pte_mkwrite(pte_t pte)
+static inline pte_t pte_mkwrite_novma(pte_t pte)
{
return __pte(pte_val(pte) | SRMMU_WRITE);
}
@@ -271,7 +254,12 @@ static inline pte_t pte_mkyoung(pte_t pte)
return __pte(pte_val(pte) | SRMMU_REF);
}
-#define pfn_pte(pfn, prot) mk_pte(pfn_to_page(pfn), prot)
+#define PFN_PTE_SHIFT (PAGE_SHIFT - 4)
+
+static inline pte_t pfn_pte(unsigned long pfn, pgprot_t pgprot)
+{
+ return __pte((pfn << PFN_PTE_SHIFT) | pgprot_val(pgprot));
+}
static inline unsigned long pte_pfn(pte_t pte)
{
@@ -283,20 +271,11 @@ static inline unsigned long pte_pfn(pte_t pte)
*/
return ~0UL;
}
- return (pte_val(pte) & SRMMU_PTE_PMASK) >> (PAGE_SHIFT-4);
+ return (pte_val(pte) & SRMMU_PTE_PMASK) >> PFN_PTE_SHIFT;
}
#define pte_page(pte) pfn_to_page(pte_pfn(pte))
-/*
- * Conversion functions: convert a page and protection to a page entry,
- * and a page entry and page directory to the page they refer to.
- */
-static inline pte_t mk_pte(struct page *page, pgprot_t pgprot)
-{
- return __pte((page_to_pfn(page) << (PAGE_SHIFT-4)) | pgprot_val(pgprot));
-}
-
static inline pte_t mk_pte_phys(unsigned long page, pgprot_t pgprot)
{
return __pte(((page) >> 4) | pgprot_val(pgprot));
@@ -321,6 +300,9 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
pgprot_val(newprot));
}
+/* only used by the huge vmap code, should never be called */
+#define pud_page(pud) NULL
+
struct seq_file;
void mmu_info(struct seq_file *m);
@@ -330,12 +312,22 @@ void mmu_info(struct seq_file *m);
#define FAULT_CODE_USER 0x4
#define update_mmu_cache(vma, address, ptep) do { } while (0)
+#define update_mmu_cache_range(vmf, vma, address, ptep, nr) do { } while (0)
void srmmu_mapiorange(unsigned int bus, unsigned long xpa,
unsigned long xva, unsigned int len);
void srmmu_unmapiorange(unsigned long virt_addr, unsigned int len);
-/* Encode and de-code a swap entry */
+/*
+ * Encode/decode swap entries and swap PTEs. Swap PTEs are all PTEs that
+ * are !pte_none() && !pte_present().
+ *
+ * Format of swap PTEs:
+ *
+ * 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * <-------------- offset ---------------> < type -> E 0 0 0 0 0 0
+ */
static inline unsigned long __swp_type(swp_entry_t entry)
{
return (entry.val >> SRMMU_SWP_TYPE_SHIFT) & SRMMU_SWP_TYPE_MASK;
@@ -356,6 +348,21 @@ static inline swp_entry_t __swp_entry(unsigned long type, unsigned long offset)
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
+static inline bool pte_swp_exclusive(pte_t pte)
+{
+ return pte_val(pte) & SRMMU_SWP_EXCLUSIVE;
+}
+
+static inline pte_t pte_swp_mkexclusive(pte_t pte)
+{
+ return __pte(pte_val(pte) | SRMMU_SWP_EXCLUSIVE);
+}
+
+static inline pte_t pte_swp_clear_exclusive(pte_t pte)
+{
+ return __pte(pte_val(pte) & ~SRMMU_SWP_EXCLUSIVE);
+}
+
static inline unsigned long
__get_phys (unsigned long addr)
{
@@ -380,12 +387,6 @@ __get_iospace (unsigned long addr)
}
}
-extern unsigned long *sparc_valid_addr_bitmap;
-
-/* Needs to be defined here and not in linux/mm.h, as it is arch dependent */
-#define kern_addr_valid(addr) \
- (test_bit(__pa((unsigned long)(addr))>>20, sparc_valid_addr_bitmap))
-
/*
* 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.
@@ -394,12 +395,8 @@ extern unsigned long *sparc_valid_addr_bitmap;
#define GET_IOSPACE(pfn) (pfn >> (BITS_PER_LONG - 4))
#define GET_PFN(pfn) (pfn & 0x0fffffffUL)
-int remap_pfn_range(struct vm_area_struct *, unsigned long, unsigned long,
- unsigned long, pgprot_t);
-
-static inline int io_remap_pfn_range(struct vm_area_struct *vma,
- unsigned long from, unsigned long pfn,
- unsigned long size, pgprot_t prot)
+static inline unsigned long io_remap_pfn_range_pfn(unsigned long pfn,
+ unsigned long size)
{
unsigned long long offset, space, phys_base;
@@ -407,27 +404,31 @@ static inline int io_remap_pfn_range(struct vm_area_struct *vma,
space = GET_IOSPACE(pfn);
phys_base = offset | (space << 32ULL);
- return remap_pfn_range(vma, from, phys_base >> PAGE_SHIFT, size, prot);
+ return phys_base >> PAGE_SHIFT;
}
-#define io_remap_pfn_range io_remap_pfn_range
+#define io_remap_pfn_range_pfn io_remap_pfn_range_pfn
#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \
({ \
int __changed = !pte_same(*(__ptep), __entry); \
if (__changed) { \
- set_pte_at((__vma)->vm_mm, (__address), __ptep, __entry); \
+ set_pte(__ptep, __entry); \
flush_tlb_page(__vma, __address); \
} \
__changed; \
})
-#endif /* !(__ASSEMBLY__) */
+#endif /* !(__ASSEMBLER__) */
#define VMALLOC_START _AC(0xfe600000,UL)
#define VMALLOC_END _AC(0xffc00000,UL)
+#define MODULES_VADDR VMALLOC_START
+#define MODULES_END VMALLOC_END
/* We provide our own get_unmapped_area to cope with VA holes for userland */
#define HAVE_ARCH_UNMAPPED_AREA
+#define pmd_pgtable(pmd) ((pgtable_t)__pmd_page(pmd))
+
#endif /* !(_SPARC_PGTABLE_H) */
generated by cgit (git 2.34.1) at 2025-12-26 01:01:34 +0000