diff options
| author | David Howells <dhowells@redhat.com> | 2018-03-08 12:48:46 +0300 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2018-03-10 01:19:56 +0300 |
| commit | 739d875dd6982618020d30f58f8acf10f6076e6d (patch) | |
| tree | 13deb11d5b2078e49d4e5b6175e5846a22a04b95 /arch/mn10300/mm/mmu-context.c | |
| parent | b67aea2bbab780e412b8af3386cc9f78f61a4cac (diff) | |
| download | linux-739d875dd6982618020d30f58f8acf10f6076e6d.tar.xz | |
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/mm/mmu-context.c')
| -rw-r--r-- | arch/mn10300/mm/mmu-context.c | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/arch/mn10300/mm/mmu-context.c b/arch/mn10300/mm/mmu-context.c deleted file mode 100644 index a4f7d3dcc6e6..000000000000 --- a/arch/mn10300/mm/mmu-context.c +++ /dev/null @@ -1,62 +0,0 @@ -/* MN10300 MMU context allocation and management - * - * 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. - */ -#include <linux/sched.h> -#include <linux/mm.h> -#include <asm/mmu_context.h> -#include <asm/tlbflush.h> - -#ifdef CONFIG_MN10300_TLB_USE_PIDR -/* - * list of the MMU contexts last allocated on each CPU - */ -unsigned long mmu_context_cache[NR_CPUS] = { - [0 ... NR_CPUS - 1] = - MMU_CONTEXT_FIRST_VERSION * 2 - (1 - MMU_CONTEXT_TLBPID_LOCK_NR), -}; -#endif /* CONFIG_MN10300_TLB_USE_PIDR */ - -/* - * preemptively set a TLB entry - */ -void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) -{ - unsigned long pteu, ptel, cnx, flags; - pte_t pte = *ptep; - - addr &= PAGE_MASK; - ptel = pte_val(pte) & ~(xPTEL_UNUSED1 | xPTEL_UNUSED2); - - /* make sure the context doesn't migrate and defend against - * interference from vmalloc'd regions */ - local_irq_save(flags); - - cnx = ~MMU_NO_CONTEXT; -#ifdef CONFIG_MN10300_TLB_USE_PIDR - cnx = mm_context(vma->vm_mm); -#endif - - if (cnx != MMU_NO_CONTEXT) { - pteu = addr; -#ifdef CONFIG_MN10300_TLB_USE_PIDR - pteu |= cnx & MMU_CONTEXT_TLBPID_MASK; -#endif - if (!(pte_val(pte) & _PAGE_NX)) { - IPTEU = pteu; - if (IPTEL & xPTEL_V) - IPTEL = ptel; - } - DPTEU = pteu; - if (DPTEL & xPTEL_V) - DPTEL = ptel; - } - - local_irq_restore(flags); -} |