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linux-next/arch/microblaze/include/asm/tlbflush.h
Michal Simek 05cdf45747 microblaze: Remove noMMU code
This configuration is obsolete and likely none is really using it. That's
why remove it to simplify code.

Note about CONFIG_MMU in hw_exception_handler.S is left intentionally
for better comment understanding.

Cc: Mike Rapoport <rppt@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/43486cab370e0c0a79860120b71e0caac75a7e44.1606397528.git.michal.simek@xilinx.com
2020-11-26 16:39:35 +01:00

52 lines
1.5 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
* Copyright (C) 2008-2009 PetaLogix
* Copyright (C) 2006 Atmark Techno, Inc.
*/
#ifndef _ASM_MICROBLAZE_TLBFLUSH_H
#define _ASM_MICROBLAZE_TLBFLUSH_H
#include <linux/sched.h>
#include <linux/threads.h>
#include <asm/processor.h> /* For TASK_SIZE */
#include <asm/mmu.h>
#include <asm/page.h>
extern void _tlbie(unsigned long address);
extern void _tlbia(void);
#define __tlbia() { preempt_disable(); _tlbia(); preempt_enable(); }
#define __tlbie(x) { _tlbie(x); }
static inline void local_flush_tlb_all(void)
{ __tlbia(); }
static inline void local_flush_tlb_mm(struct mm_struct *mm)
{ __tlbia(); }
static inline void local_flush_tlb_page(struct vm_area_struct *vma,
unsigned long vmaddr)
{ __tlbie(vmaddr); }
static inline void local_flush_tlb_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{ __tlbia(); }
#define flush_tlb_kernel_range(start, end) do { } while (0)
#define update_mmu_cache(vma, addr, ptep) do { } while (0)
#define flush_tlb_all local_flush_tlb_all
#define flush_tlb_mm local_flush_tlb_mm
#define flush_tlb_page local_flush_tlb_page
#define flush_tlb_range local_flush_tlb_range
/*
* This is called in munmap when we have freed up some page-table
* pages. We don't need to do anything here, there's nothing special
* about our page-table pages. -- paulus
*/
static inline void flush_tlb_pgtables(struct mm_struct *mm,
unsigned long start, unsigned long end) { }
#endif /* _ASM_MICROBLAZE_TLBFLUSH_H */