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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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60e50f34b1
m68k has two or three levels of page tables and can use appropriate pgtable-nopXd and folding of the upper layers. Replace usage of include/asm-generic/4level-fixup.h and explicit definitions of __PAGETABLE_PxD_FOLDED in m68k with include/asm-generic/pgtable-nopmd.h for two-level configurations and with include/asm-generic/pgtable-nopud.h for three-lelve configurations and adjust page table manipulation macros and functions accordingly. [akpm@linux-foundation.org: fix merge glitch] [geert@linux-m68k.org: more merge glitch fixes] [akpm@linux-foundation.org: s/bad_pgd/bad_pud/, per Mike] Link: http://lkml.kernel.org/r/1572938135-31886-6-git-send-email-rppt@kernel.org Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Greg Ungerer <gerg@linux-m68k.org> Cc: Anatoly Pugachev <matorola@gmail.com> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: Mark Salter <msalter@redhat.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Peter Rosin <peda@axentia.se> Cc: Richard Weinberger <richard@nod.at> Cc: Rolf Eike Beer <eike-kernel@sf-tec.de> Cc: Russell King <linux@armlinux.org.uk> Cc: Russell King <rmk+kernel@armlinux.org.uk> Cc: Sam Creasey <sammy@sammy.net> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _M68K_PAGE_H
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#define _M68K_PAGE_H
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#include <linux/const.h>
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#include <asm/setup.h>
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#include <asm/page_offset.h>
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/* PAGE_SHIFT determines the page size */
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#if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE)
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#define PAGE_SHIFT 13
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#else
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#define PAGE_SHIFT 12
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#endif
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#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
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#define PAGE_MASK (~(PAGE_SIZE-1))
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#define PAGE_OFFSET (PAGE_OFFSET_RAW)
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#ifndef __ASSEMBLY__
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/*
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* These are used to make use of C type-checking..
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*/
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#if !defined(CONFIG_MMU) || CONFIG_PGTABLE_LEVELS == 3
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typedef struct { unsigned long pmd[16]; } pmd_t;
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#define pmd_val(x) ((&x)->pmd[0])
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#define __pmd(x) ((pmd_t) { { (x) }, })
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#endif
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typedef struct { unsigned long pte; } pte_t;
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typedef struct { unsigned long pgd; } pgd_t;
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typedef struct { unsigned long pgprot; } pgprot_t;
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typedef struct page *pgtable_t;
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#define pte_val(x) ((x).pte)
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#define pgd_val(x) ((x).pgd)
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#define pgprot_val(x) ((x).pgprot)
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#define __pte(x) ((pte_t) { (x) } )
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#define __pgd(x) ((pgd_t) { (x) } )
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#define __pgprot(x) ((pgprot_t) { (x) } )
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extern unsigned long _rambase;
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extern unsigned long _ramstart;
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extern unsigned long _ramend;
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#endif /* !__ASSEMBLY__ */
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#ifdef CONFIG_MMU
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#include <asm/page_mm.h>
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#else
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#include <asm/page_no.h>
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#endif
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#define __phys_to_pfn(paddr) ((unsigned long)((paddr) >> PAGE_SHIFT))
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#define __pfn_to_phys(pfn) PFN_PHYS(pfn)
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#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
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VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
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#include <asm-generic/getorder.h>
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#endif /* _M68K_PAGE_H */
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