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authorDavid Howells <dhowells@redhat.com>2018-03-08 10:48:46 +0100
committerArnd Bergmann <arnd@arndb.de>2018-03-09 23:19:56 +0100
commit739d875dd6982618020d30f58f8acf10f6076e6d (patch)
tree13deb11d5b2078e49d4e5b6175e5846a22a04b95 /arch/mn10300/include/asm/tlbflush.h
parentMerge tag 'metag_remove_2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/... (diff)
downloadlinux-739d875dd6982618020d30f58f8acf10f6076e6d.tar.xz
linux-739d875dd6982618020d30f58f8acf10f6076e6d.zip
mn10300: Remove the architecture
Remove the MN10300 arch as the hardware is defunct. Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David Howells <dhowells@redhat.com> cc: Masahiro Yamada <yamada.masahiro@socionext.com> cc: linux-am33-list@redhat.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/mn10300/include/asm/tlbflush.h')
-rw-r--r--arch/mn10300/include/asm/tlbflush.h154
1 files changed, 0 insertions, 154 deletions
diff --git a/arch/mn10300/include/asm/tlbflush.h b/arch/mn10300/include/asm/tlbflush.h
deleted file mode 100644
index efddd6e1adea..000000000000
--- a/arch/mn10300/include/asm/tlbflush.h
+++ /dev/null
@@ -1,154 +0,0 @@
-/* MN10300 TLB flushing functions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_TLBFLUSH_H
-#define _ASM_TLBFLUSH_H
-
-#include <linux/mm.h>
-#include <asm/processor.h>
-
-struct tlb_state {
- struct mm_struct *active_mm;
- int state;
-};
-DECLARE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate);
-
-/**
- * local_flush_tlb - Flush the current MM's entries from the local CPU's TLBs
- */
-static inline void local_flush_tlb(void)
-{
- int w;
- asm volatile(
- " mov %1,%0 \n"
- " or %2,%0 \n"
- " mov %0,%1 \n"
- : "=d"(w)
- : "m"(MMUCTR), "i"(MMUCTR_IIV|MMUCTR_DIV)
- : "cc", "memory");
-}
-
-/**
- * local_flush_tlb_all - Flush all entries from the local CPU's TLBs
- */
-static inline void local_flush_tlb_all(void)
-{
- local_flush_tlb();
-}
-
-/**
- * local_flush_tlb_one - Flush one entry from the local CPU's TLBs
- */
-static inline void local_flush_tlb_one(unsigned long addr)
-{
- local_flush_tlb();
-}
-
-/**
- * local_flush_tlb_page - Flush a page's entry from the local CPU's TLBs
- * @mm: The MM to flush for
- * @addr: The address of the target page in RAM (not its page struct)
- */
-static inline
-void local_flush_tlb_page(struct mm_struct *mm, unsigned long addr)
-{
- unsigned long pteu, flags, cnx;
-
- addr &= PAGE_MASK;
-
- local_irq_save(flags);
-
- cnx = 1;
-#ifdef CONFIG_MN10300_TLB_USE_PIDR
- cnx = mm->context.tlbpid[smp_processor_id()];
-#endif
- if (cnx) {
- pteu = addr;
-#ifdef CONFIG_MN10300_TLB_USE_PIDR
- pteu |= cnx & xPTEU_PID;
-#endif
- IPTEU = pteu;
- DPTEU = pteu;
- if (IPTEL & xPTEL_V)
- IPTEL = 0;
- if (DPTEL & xPTEL_V)
- DPTEL = 0;
- }
- local_irq_restore(flags);
-}
-
-/*
- * TLB flushing:
- *
- * - flush_tlb() flushes the current mm struct TLBs
- * - flush_tlb_all() flushes all processes TLBs
- * - flush_tlb_mm(mm) flushes the specified mm context TLB's
- * - flush_tlb_page(vma, vmaddr) flushes one page
- * - flush_tlb_range(mm, start, end) flushes a range of pages
- * - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
- */
-#ifdef CONFIG_SMP
-
-#include <asm/smp.h>
-
-extern void flush_tlb_all(void);
-extern void flush_tlb_current_task(void);
-extern void flush_tlb_mm(struct mm_struct *);
-extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
-
-#define flush_tlb() flush_tlb_current_task()
-
-static inline void flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
- flush_tlb_mm(vma->vm_mm);
-}
-
-#else /* CONFIG_SMP */
-
-static inline void flush_tlb_all(void)
-{
- preempt_disable();
- local_flush_tlb_all();
- preempt_enable();
-}
-
-static inline void flush_tlb_mm(struct mm_struct *mm)
-{
- preempt_disable();
- local_flush_tlb_all();
- preempt_enable();
-}
-
-static inline void flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
- preempt_disable();
- local_flush_tlb_all();
- preempt_enable();
-}
-
-#define flush_tlb_page(vma, addr) local_flush_tlb_page((vma)->vm_mm, addr)
-#define flush_tlb() flush_tlb_all()
-
-#endif /* CONFIG_SMP */
-
-static inline void flush_tlb_kernel_range(unsigned long start,
- unsigned long end)
-{
- flush_tlb_all();
-}
-
-static inline void flush_tlb_pgtables(struct mm_struct *mm,
- unsigned long start, unsigned long end)
-{
-}
-
-#endif /* _ASM_TLBFLUSH_H */