android_kernel_samsung_msm8976/arch/sh/mm/tlb-sh4.c
Paul Mundt ea9af69481 sh: Local TLB flushing variants for SMP prep.
Rename the existing flush routines to local_ variants for use by
the IPI-backed global flush routines on SMP.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13 10:54:45 +09:00

30 lines
686 B
C

/*
* arch/sh/mm/tlb-sh4.c
*
* SH-4 specific TLB operations
*
* Copyright (C) 1999 Niibe Yutaka
* Copyright (C) 2002 Paul Mundt
*
* Released under the terms of the GNU GPL v2.0.
*/
#include <linux/io.h>
#include <asm/system.h>
#include <asm/mmu_context.h>
void local_flush_tlb_one(unsigned long asid, unsigned long page)
{
unsigned long addr, data;
/*
* NOTE: PTEH.ASID should be set to this MM
* _AND_ we need to write ASID to the array.
*
* It would be simple if we didn't need to set PTEH.ASID...
*/
addr = MMU_UTLB_ADDRESS_ARRAY | MMU_PAGE_ASSOC_BIT;
data = page | asid; /* VALID bit is off */
jump_to_P2();
ctrl_outl(data, addr);
back_to_P1();
}