/* * linux/arch/arm/mm/tlbv3.S * * Copyright (C) 1997-2002 Russell King * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * ARM architecture version 3 TLB handling functions. * * Processors: ARM610, ARM710. */ #include <linux/linkage.h> #include <linux/init.h> #include <asm/constants.h> #include <asm/tlbflush.h> #include "proc-macros.S" .align 5 /* * v3_flush_user_tlb_range(start, end, mm) * * Invalidate a range of TLB entries in the specified address space. * * - start - range start address * - end - range end address * - mm - mm_struct describing address space */ .align 5 ENTRY(v3_flush_user_tlb_range) vma_vm_mm r2, r2 act_mm r3 @ get current->active_mm teq r2, r3 @ == mm ? movne pc, lr @ no, we dont do anything ENTRY(v3_flush_kern_tlb_range) bic r0, r0, #0x0ff bic r0, r0, #0xf00 1: mcr p15, 0, r0, c6, c0, 0 @ invalidate TLB entry add r0, r0, #PAGE_SZ cmp r0, r1 blo 1b mov pc, lr __INITDATA .type v3_tlb_fns, #object ENTRY(v3_tlb_fns) .long v3_flush_user_tlb_range .long v3_flush_kern_tlb_range .long v3_tlb_flags .size v3_tlb_fns, . - v3_tlb_fns