#include <linux/const.h>
#include <asm-generic/4level-fixup.h>
#include <linux/spinlock.h>
#include <linux/swap.h>
#include <asm/types.h>
#include <asm/pgtsrmmu.h>
#include <asm/vaddrs.h>
#include <asm/oplib.h>
#include <asm/cpu_type.h>
#include <asm-generic/pgtable.h>

Macros
#define	pte_ERROR(e) __builtin_trap()

#define	pmd_ERROR(e) __builtin_trap()

#define	pgd_ERROR(e) __builtin_trap()

#define	PMD_SHIFT 22

#define	PMD_SIZE (1UL << PMD_SHIFT)

#define	PMD_MASK (~(PMD_SIZE-1))

#define	PMD_ALIGN(__addr) (((__addr) + ~PMD_MASK) & PMD_MASK)

#define	PGDIR_SHIFT SRMMU_PGDIR_SHIFT

#define	PGDIR_SIZE SRMMU_PGDIR_SIZE

#define	PGDIR_MASK SRMMU_PGDIR_MASK

#define	PTRS_PER_PTE 1024

#define	PTRS_PER_PMD SRMMU_PTRS_PER_PMD

#define	PTRS_PER_PGD SRMMU_PTRS_PER_PGD

#define	USER_PTRS_PER_PGD PAGE_OFFSET / SRMMU_PGDIR_SIZE

#define	FIRST_USER_ADDRESS 0

#define	PTE_SIZE (PTRS_PER_PTE*4)

#define	PAGE_NONE SRMMU_PAGE_NONE

#define	PAGE_SHARED SRMMU_PAGE_SHARED

#define	PAGE_COPY SRMMU_PAGE_COPY

#define	PAGE_READONLY SRMMU_PAGE_RDONLY

#define	PAGE_KERNEL SRMMU_PAGE_KERNEL

#define	swapper_pg_dir NULL

#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	ZERO_PAGE(vaddr) (virt_to_page(&empty_zero_page))

#define	set_pte_at(mm, addr, ptep, pteval) set_pte(ptep,pteval)

#define	pte_mkspecial(pte) (pte)

#define	pfn_pte(pfn, prot) mk_pte(pfn_to_page(pfn), prot)

#define	pte_page(pte) pfn_to_page(pte_pfn(pte))

#define	pgprot_noncached pgprot_noncached

#define	pgd_index(address) ((address) >> PGDIR_SHIFT)

#define	pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))

#define	pgd_offset_k(address) pgd_offset(&init_mm, address)

#define	pte_offset_map(d, a) pte_offset_kernel(d,a)

#define	pte_unmap(pte) do{}while(0)

#define	FAULT_CODE_PROT 0x1

#define	FAULT_CODE_WRITE 0x2

#define	FAULT_CODE_USER 0x4

#define	update_mmu_cache(vma, address, ptep) do { } while (0)

#define	__pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })

#define	__swp_entry_to_pte(x) ((pte_t) { (x).val })

#define	PTE_FILE_MAX_BITS 24

#define	kern_addr_valid(addr) (test_bit(__pa((unsigned long)(addr))>>20, sparc_valid_addr_bitmap))

#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)

#define	__HAVE_ARCH_PTEP_SET_ACCESS_FLAGS

#define	ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty)

#define	VMALLOC_START _AC(0xfe600000,UL)

#define	VMALLOC_END _AC(0xffc00000,UL)

#define	HAVE_ARCH_UNMAPPED_AREA

#define	pgtable_cache_init() do { } while (0)

Functions
void	load_mmu (void)

unsigned long	calc_highpages (void)

void	paging_init (void)

pte_t *	pte_offset_kernel (pmd_t *dir, unsigned long address)

void	mmu_info (struct seq_file *m)

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)

int	remap_pfn_range (struct vm_area_struct *, unsigned long, unsigned long, unsigned long, pgprot_t)

Variables
unsigned long	ptr_in_current_pgd

unsigned long	phys_base

unsigned long	pfn_base

unsigned long	empty_zero_page

unsigned long *	sparc_valid_addr_bitmap

Macro Definition Documentation

#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS

Definition at line 447 of file pgtable_32.h.

#define __P000 PAGE_NONE

Definition at line 64 of file pgtable_32.h.

#define __P001 PAGE_READONLY

Definition at line 65 of file pgtable_32.h.

#define __P010 PAGE_COPY

Definition at line 66 of file pgtable_32.h.

#define __P011 PAGE_COPY

Definition at line 67 of file pgtable_32.h.

#define __P100 PAGE_READONLY

Definition at line 68 of file pgtable_32.h.

#define __P101 PAGE_READONLY

Definition at line 69 of file pgtable_32.h.

#define __P110 PAGE_COPY

Definition at line 70 of file pgtable_32.h.

#define __P111 PAGE_COPY

Definition at line 71 of file pgtable_32.h.

#define __pte_to_swp_entry ( pte ) ((swp_entry_t) { pte_val(pte) })

Definition at line 374 of file pgtable_32.h.

#define __S000 PAGE_NONE

Definition at line 73 of file pgtable_32.h.

#define __S001 PAGE_READONLY

Definition at line 74 of file pgtable_32.h.

#define __S010 PAGE_SHARED

Definition at line 75 of file pgtable_32.h.

#define __S011 PAGE_SHARED

Definition at line 76 of file pgtable_32.h.

#define __S100 PAGE_READONLY

Definition at line 77 of file pgtable_32.h.

#define __S101 PAGE_READONLY

Definition at line 78 of file pgtable_32.h.

#define __S110 PAGE_SHARED

Definition at line 79 of file pgtable_32.h.

#define __S111 PAGE_SHARED

Definition at line 80 of file pgtable_32.h.

#define __swp_entry_to_pte ( x ) ((pte_t) { (x).val })

Definition at line 375 of file pgtable_32.h.

#define FAULT_CODE_PROT 0x1

Definition at line 346 of file pgtable_32.h.

#define FAULT_CODE_USER 0x4

Definition at line 348 of file pgtable_32.h.

#define FAULT_CODE_WRITE 0x2

Definition at line 347 of file pgtable_32.h.

#define FIRST_USER_ADDRESS 0

Definition at line 46 of file pgtable_32.h.

#define GET_IOSPACE ( pfn ) (pfn >> (BITS_PER_LONG - 4))

Definition at line 428 of file pgtable_32.h.

#define GET_PFN ( pfn ) (pfn & 0x0fffffffUL)

Definition at line 429 of file pgtable_32.h.

#define HAVE_ARCH_UNMAPPED_AREA

Definition at line 466 of file pgtable_32.h.

#define kern_addr_valid ( addr ) (test_bit(__pa((unsigned long)(addr))>>20, sparc_valid_addr_bitmap))

Definition at line 420 of file pgtable_32.h.

#define MK_IOSPACE_PFN	(	space,
		pfn
	)	(pfn \| (space << (BITS_PER_LONG - 4)))

Definition at line 427 of file pgtable_32.h.

#define PAGE_COPY SRMMU_PAGE_COPY

Definition at line 51 of file pgtable_32.h.

#define PAGE_KERNEL SRMMU_PAGE_KERNEL

Definition at line 53 of file pgtable_32.h.

#define PAGE_NONE SRMMU_PAGE_NONE

Definition at line 49 of file pgtable_32.h.

#define PAGE_READONLY SRMMU_PAGE_RDONLY

Definition at line 52 of file pgtable_32.h.

#define PAGE_SHARED SRMMU_PAGE_SHARED

Definition at line 50 of file pgtable_32.h.

#define pfn_pte	(	pfn,
		prot
	)	mk_pte(pfn_to_page(pfn), prot)

Definition at line 268 of file pgtable_32.h.

#define pgd_ERROR ( e ) __builtin_trap()

Definition at line 33 of file pgtable_32.h.

#define pgd_index ( address ) ((address) >> PGDIR_SHIFT)

Definition at line 318 of file pgtable_32.h.

#define pgd_offset	(	mm,
		address
	)	((mm)->pgd + pgd_index(address))

Definition at line 321 of file pgtable_32.h.

#define pgd_offset_k ( address ) pgd_offset(&init_mm, address)

Definition at line 324 of file pgtable_32.h.

#define PGDIR_MASK SRMMU_PGDIR_MASK

Definition at line 41 of file pgtable_32.h.

#define PGDIR_SHIFT SRMMU_PGDIR_SHIFT

Definition at line 39 of file pgtable_32.h.

#define PGDIR_SIZE SRMMU_PGDIR_SIZE

Definition at line 40 of file pgtable_32.h.

#define pgprot_noncached pgprot_noncached

Definition at line 304 of file pgtable_32.h.

#define pgtable_cache_init ( void ) do { } while (0)

Definition at line 471 of file pgtable_32.h.

#define PMD_ALIGN ( __addr ) (((__addr) + ~PMD_MASK) & PMD_MASK)

Definition at line 38 of file pgtable_32.h.

#define pmd_ERROR ( e ) __builtin_trap()

Definition at line 32 of file pgtable_32.h.

#define PMD_MASK (~(PMD_SIZE-1))

Definition at line 37 of file pgtable_32.h.

#define PMD_SHIFT 22

Definition at line 35 of file pgtable_32.h.

#define PMD_SIZE (1UL << PMD_SHIFT)

Definition at line 36 of file pgtable_32.h.

#define pte_ERROR ( e ) __builtin_trap()

Definition at line 31 of file pgtable_32.h.

#define PTE_FILE_MAX_BITS 24

Definition at line 391 of file pgtable_32.h.

#define pte_mkspecial ( pte ) (pte)

Definition at line 266 of file pgtable_32.h.

#define pte_offset_map	(	d,
		a
	)	pte_offset_kernel(d,a)

Definition at line 339 of file pgtable_32.h.

#define pte_page ( pte ) pfn_to_page(pte_pfn(pte))

Definition at line 283 of file pgtable_32.h.

#define PTE_SIZE (PTRS_PER_PTE*4)

Definition at line 47 of file pgtable_32.h.

#define pte_unmap ( pte ) do{}while(0)

Definition at line 340 of file pgtable_32.h.

#define ptep_set_access_flags	(	__vma,
		__address,
		__ptep,
		__entry,
		__dirty
	)

Value:

({                                    \
    int __changed = !pte_same(*(__ptep), __entry);            \
    if (__changed) {                          \
        set_pte_at((__vma)->vm_mm, (__address), __ptep, __entry); \
        flush_tlb_page(__vma, __address);             \
    }                                 \
    __changed;                            \
})

Definition at line 448 of file pgtable_32.h.

#define PTRS_PER_PGD SRMMU_PTRS_PER_PGD

Definition at line 44 of file pgtable_32.h.

#define PTRS_PER_PMD SRMMU_PTRS_PER_PMD

Definition at line 43 of file pgtable_32.h.

#define PTRS_PER_PTE 1024

Definition at line 42 of file pgtable_32.h.

#define set_pte_at	(	mm,
		addr,
		ptep,
		pteval
	)	set_pte(ptep,pteval)

Definition at line 118 of file pgtable_32.h.

#define swapper_pg_dir NULL

Definition at line 57 of file pgtable_32.h.

#define update_mmu_cache	(	vma,
		address,
		ptep
	)	do { } while (0)

Definition at line 350 of file pgtable_32.h.

#define USER_PTRS_PER_PGD PAGE_OFFSET / SRMMU_PGDIR_SIZE

Definition at line 45 of file pgtable_32.h.

#define VMALLOC_END _AC(0xffc00000,UL)

Definition at line 463 of file pgtable_32.h.

#define VMALLOC_START _AC(0xfe600000,UL)

Definition at line 462 of file pgtable_32.h.

#define ZERO_PAGE ( vaddr ) (virt_to_page(&empty_zero_page))

Definition at line 95 of file pgtable_32.h.

Function Documentation

unsigned long calc_highpages ( void )

Definition at line 69 of file init_32.c.

void load_mmu ( void )

Definition at line 1765 of file srmmu.c.

void mmu_info ( struct seq_file * m )

Definition at line 431 of file init_64.c.

void paging_init ( void )

paging_init - setup page tables

paging_init() sets up the page tables for each node of the system and frees the bootmem allocator memory for general use.

Definition at line 238 of file init.c.

pte_t* pte_offset_kernel	(	pmd_t *	dir,
		unsigned long	address
	)

inline

Definition at line 313 of file pgtable.h.

int remap_pfn_range	(	struct vm_area_struct *	vma,
		unsigned long	addr,
		unsigned long	pfn,
		unsigned long	size,
		pgprot_t	prot
	)

remap_pfn_range - remap kernel memory to userspace : user vma to map to : target user address to start at : physical address of kernel memory : size of map area : page protection flags for this mapping

Note: this is only safe if the mm semaphore is held when called.

Definition at line 2292 of file memory.c.

void srmmu_mapiorange	(	unsigned int	bus,
		unsigned long	xpa,
		unsigned long	xva,
		unsigned int	len
	)

Definition at line 497 of file srmmu.c.

void srmmu_unmapiorange	(	unsigned long	virt_addr,
		unsigned int	len
	)

Definition at line 523 of file srmmu.c.

Variable Documentation

unsigned long empty_zero_page

Definition at line 42 of file mmu.c.

unsigned long pfn_base

Definition at line 44 of file init_32.c.

unsigned long phys_base

Definition at line 41 of file init_32.c.

unsigned long ptr_in_current_pgd

unsigned long* sparc_valid_addr_bitmap

Definition at line 38 of file init_32.c.

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation