diff options
Diffstat (limited to 'arch/sh/mm/tlb-sh4.c')
| -rw-r--r-- | arch/sh/mm/tlb-sh4.c | 68 |
1 files changed, 1 insertions, 67 deletions
diff --git a/arch/sh/mm/tlb-sh4.c b/arch/sh/mm/tlb-sh4.c index 812b2d567de..758d8dec622 100644 --- a/arch/sh/mm/tlb-sh4.c +++ b/arch/sh/mm/tlb-sh4.c @@ -8,74 +8,9 @@ * * Released under the terms of the GNU GPL v2.0. */ -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/ptrace.h> -#include <linux/mman.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/smp_lock.h> -#include <linux/interrupt.h> - +#include <linux/io.h> #include <asm/system.h> -#include <asm/io.h> -#include <asm/uaccess.h> -#include <asm/pgalloc.h> #include <asm/mmu_context.h> -#include <asm/cacheflush.h> - -void update_mmu_cache(struct vm_area_struct * vma, - unsigned long address, pte_t pte) -{ - unsigned long flags; - unsigned long pteval; - unsigned long vpn; - struct page *page; - unsigned long pfn; - - /* Ptrace may call this routine. */ - if (vma && current->active_mm != vma->vm_mm) - return; - - pfn = pte_pfn(pte); - if (pfn_valid(pfn)) { - page = pfn_to_page(pfn); - if (!test_bit(PG_mapped, &page->flags)) { - unsigned long phys = pte_val(pte) & PTE_PHYS_MASK; - __flush_wback_region((void *)P1SEGADDR(phys), PAGE_SIZE); - __set_bit(PG_mapped, &page->flags); - } - } - - local_irq_save(flags); - - /* Set PTEH register */ - vpn = (address & MMU_VPN_MASK) | get_asid(); - ctrl_outl(vpn, MMU_PTEH); - - pteval = pte_val(pte); - - /* Set PTEA register */ - if (cpu_data->flags & CPU_HAS_PTEA) - /* TODO: make this look less hacky */ - ctrl_outl(((pteval >> 28) & 0xe) | (pteval & 0x1), MMU_PTEA); - - /* Set PTEL register */ - pteval &= _PAGE_FLAGS_HARDWARE_MASK; /* drop software flags */ -#ifdef CONFIG_SH_WRITETHROUGH - pteval |= _PAGE_WT; -#endif - /* conveniently, we want all the software flags to be 0 anyway */ - ctrl_outl(pteval, MMU_PTEL); - - /* Load the TLB */ - asm volatile("ldtlb": /* no output */ : /* no input */ : "memory"); - local_irq_restore(flags); -} void __flush_tlb_page(unsigned long asid, unsigned long page) { @@ -93,4 +28,3 @@ void __flush_tlb_page(unsigned long asid, unsigned long page) ctrl_outl(data, addr); back_to_P1(); } - |