4539282dbc
Presently the TLB wiring code depends on MMUCR.URB for working out where to place the wired entry, but fails to take the replacment counter in to consideration. This fixes up the wiring logic and ensures that wired entries remain so. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
/*
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* include/asm-sh/cpu-sh4/mmu_context.h
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*
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* Copyright (C) 1999 Niibe Yutaka
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#ifndef __ASM_CPU_SH4_MMU_CONTEXT_H
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#define __ASM_CPU_SH4_MMU_CONTEXT_H
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#define MMU_PTEH 0xFF000000 /* Page table entry register HIGH */
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#define MMU_PTEL 0xFF000004 /* Page table entry register LOW */
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#define MMU_TTB 0xFF000008 /* Translation table base register */
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#define MMU_TEA 0xFF00000C /* TLB Exception Address */
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#define MMU_PTEA 0xFF000034 /* PTE assistance register */
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#define MMU_PTEAEX 0xFF00007C /* PTE ASID extension register */
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#define MMUCR 0xFF000010 /* MMU Control Register */
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#define MMU_ITLB_ADDRESS_ARRAY 0xF2000000
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#define MMU_ITLB_ADDRESS_ARRAY2 0xF2800000
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#define MMU_UTLB_ADDRESS_ARRAY 0xF6000000
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#define MMU_UTLB_ADDRESS_ARRAY2 0xF6800000
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#define MMU_PAGE_ASSOC_BIT 0x80
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#define MMUCR_TI (1<<2)
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#define MMUCR_URB 0x00FC0000
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#define MMUCR_URB_SHIFT 18
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#define MMUCR_URB_NENTRIES 64
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#define MMUCR_URC 0x0000FC00
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#define MMUCR_URC_SHIFT 10
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#if defined(CONFIG_32BIT) && defined(CONFIG_CPU_SUBTYPE_ST40)
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#define MMUCR_SE (1 << 4)
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#else
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#define MMUCR_SE (0)
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#endif
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#ifdef CONFIG_CPU_HAS_PTEAEX
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#define MMUCR_AEX (1 << 6)
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#else
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#define MMUCR_AEX (0)
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#endif
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#ifdef CONFIG_X2TLB
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#define MMUCR_ME (1 << 7)
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#else
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#define MMUCR_ME (0)
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#endif
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#ifdef CONFIG_SH_STORE_QUEUES
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#define MMUCR_SQMD (1 << 9)
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#else
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#define MMUCR_SQMD (0)
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#endif
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#define MMU_NTLB_ENTRIES 64
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#define MMU_CONTROL_INIT (0x05|MMUCR_SQMD|MMUCR_ME|MMUCR_SE|MMUCR_AEX)
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#define TRA 0xff000020
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#define EXPEVT 0xff000024
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#define INTEVT 0xff000028
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#endif /* __ASM_CPU_SH4_MMU_CONTEXT_H */
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