diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/s390/include/asm/page.h')
| -rw-r--r-- | ANDROID_3.4.5/arch/s390/include/asm/page.h | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/ANDROID_3.4.5/arch/s390/include/asm/page.h b/ANDROID_3.4.5/arch/s390/include/asm/page.h deleted file mode 100644 index f7ec548c..00000000 --- a/ANDROID_3.4.5/arch/s390/include/asm/page.h +++ /dev/null @@ -1,208 +0,0 @@ -/* - * include/asm-s390/page.h - * - * S390 version - * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation - * Author(s): Hartmut Penner (hp@de.ibm.com) - */ - -#ifndef _S390_PAGE_H -#define _S390_PAGE_H - -#include <linux/const.h> -#include <asm/types.h> - -/* PAGE_SHIFT determines the page size */ -#define PAGE_SHIFT 12 -#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE-1)) -#define PAGE_DEFAULT_ACC 0 -#define PAGE_DEFAULT_KEY (PAGE_DEFAULT_ACC << 4) - -#define HPAGE_SHIFT 20 -#define HPAGE_SIZE (1UL << HPAGE_SHIFT) -#define HPAGE_MASK (~(HPAGE_SIZE - 1)) -#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) - -#define ARCH_HAS_SETCLEAR_HUGE_PTE -#define ARCH_HAS_HUGE_PTE_TYPE -#define ARCH_HAS_PREPARE_HUGEPAGE -#define ARCH_HAS_HUGEPAGE_CLEAR_FLUSH - -#include <asm/setup.h> -#ifndef __ASSEMBLY__ - -static inline void clear_page(void *page) -{ - if (MACHINE_HAS_PFMF) { - asm volatile( - " .insn rre,0xb9af0000,%0,%1" - : : "d" (0x10000), "a" (page) : "memory", "cc"); - } else { - register unsigned long reg1 asm ("1") = 0; - register void *reg2 asm ("2") = page; - register unsigned long reg3 asm ("3") = 4096; - asm volatile( - " mvcl 2,0" - : "+d" (reg2), "+d" (reg3) : "d" (reg1) - : "memory", "cc"); - } -} - -static inline void copy_page(void *to, void *from) -{ - if (MACHINE_HAS_MVPG) { - register unsigned long reg0 asm ("0") = 0; - asm volatile( - " mvpg %0,%1" - : : "a" (to), "a" (from), "d" (reg0) - : "memory", "cc"); - } else - asm volatile( - " mvc 0(256,%0),0(%1)\n" - " mvc 256(256,%0),256(%1)\n" - " mvc 512(256,%0),512(%1)\n" - " mvc 768(256,%0),768(%1)\n" - " mvc 1024(256,%0),1024(%1)\n" - " mvc 1280(256,%0),1280(%1)\n" - " mvc 1536(256,%0),1536(%1)\n" - " mvc 1792(256,%0),1792(%1)\n" - " mvc 2048(256,%0),2048(%1)\n" - " mvc 2304(256,%0),2304(%1)\n" - " mvc 2560(256,%0),2560(%1)\n" - " mvc 2816(256,%0),2816(%1)\n" - " mvc 3072(256,%0),3072(%1)\n" - " mvc 3328(256,%0),3328(%1)\n" - " mvc 3584(256,%0),3584(%1)\n" - " mvc 3840(256,%0),3840(%1)\n" - : : "a" (to), "a" (from) : "memory"); -} - -#define clear_user_page(page, vaddr, pg) clear_page(page) -#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) - -#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ - alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) -#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE - -/* - * These are used to make use of C type-checking.. - */ - -typedef struct { unsigned long pgprot; } pgprot_t; -typedef struct { unsigned long pgste; } pgste_t; -typedef struct { unsigned long pte; } pte_t; -typedef struct { unsigned long pmd; } pmd_t; -typedef struct { unsigned long pud; } pud_t; -typedef struct { unsigned long pgd; } pgd_t; -typedef pte_t *pgtable_t; - -#define pgprot_val(x) ((x).pgprot) -#define pgste_val(x) ((x).pgste) -#define pte_val(x) ((x).pte) -#define pmd_val(x) ((x).pmd) -#define pud_val(x) ((x).pud) -#define pgd_val(x) ((x).pgd) - -#define __pgste(x) ((pgste_t) { (x) } ) -#define __pte(x) ((pte_t) { (x) } ) -#define __pmd(x) ((pmd_t) { (x) } ) -#define __pud(x) ((pud_t) { (x) } ) -#define __pgd(x) ((pgd_t) { (x) } ) -#define __pgprot(x) ((pgprot_t) { (x) } ) - -static inline void page_set_storage_key(unsigned long addr, - unsigned char skey, int mapped) -{ - if (!mapped) - asm volatile(".insn rrf,0xb22b0000,%0,%1,8,0" - : : "d" (skey), "a" (addr)); - else - asm volatile("sske %0,%1" : : "d" (skey), "a" (addr)); -} - -static inline unsigned char page_get_storage_key(unsigned long addr) -{ - unsigned char skey; - - asm volatile("iske %0,%1" : "=d" (skey) : "a" (addr)); - return skey; -} - -static inline int page_reset_referenced(unsigned long addr) -{ - unsigned int ipm; - - asm volatile( - " rrbe 0,%1\n" - " ipm %0\n" - : "=d" (ipm) : "a" (addr) : "cc"); - return !!(ipm & 0x20000000); -} - -/* Bits int the storage key */ -#define _PAGE_CHANGED 0x02 /* HW changed bit */ -#define _PAGE_REFERENCED 0x04 /* HW referenced bit */ -#define _PAGE_FP_BIT 0x08 /* HW fetch protection bit */ -#define _PAGE_ACC_BITS 0xf0 /* HW access control bits */ - -/* - * Test and clear dirty bit in storage key. - * We can't clear the changed bit atomically. This is a potential - * race against modification of the referenced bit. This function - * should therefore only be called if it is not mapped in any - * address space. - */ -#define __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY -static inline int page_test_and_clear_dirty(unsigned long pfn, int mapped) -{ - unsigned char skey; - - skey = page_get_storage_key(pfn << PAGE_SHIFT); - if (!(skey & _PAGE_CHANGED)) - return 0; - page_set_storage_key(pfn << PAGE_SHIFT, skey & ~_PAGE_CHANGED, mapped); - return 1; -} - -/* - * Test and clear referenced bit in storage key. - */ -#define __HAVE_ARCH_PAGE_TEST_AND_CLEAR_YOUNG -static inline int page_test_and_clear_young(unsigned long pfn) -{ - return page_reset_referenced(pfn << PAGE_SHIFT); -} - -struct page; -void arch_free_page(struct page *page, int order); -void arch_alloc_page(struct page *page, int order); -void arch_set_page_states(int make_stable); - -static inline int devmem_is_allowed(unsigned long pfn) -{ - return 0; -} - -#define HAVE_ARCH_FREE_PAGE -#define HAVE_ARCH_ALLOC_PAGE - -#endif /* !__ASSEMBLY__ */ - -#define __PAGE_OFFSET 0x0UL -#define PAGE_OFFSET 0x0UL -#define __pa(x) (unsigned long)(x) -#define __va(x) (void *)(unsigned long)(x) -#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) -#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) -#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) - -#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -#include <asm-generic/memory_model.h> -#include <asm-generic/getorder.h> - -#define __HAVE_ARCH_GATE_AREA 1 - -#endif /* _S390_PAGE_H */ |