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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b4ed71f557
The naming of pgtable_page_{ctor,dtor}() seems to have confused a few
people, and until recently arm64 used these erroneously/pointlessly for
other levels of page table.
To make it incredibly clear that these only apply to the PTE level, and to
align with the naming of pgtable_pmd_page_{ctor,dtor}(), let's rename them
to pgtable_pte_page_{ctor,dtor}().
These changes were generated with the following shell script:
----
git grep -lw 'pgtable_page_.tor' | while read FILE; do
sed -i '{s/pgtable_page_ctor/pgtable_pte_page_ctor/}' $FILE;
sed -i '{s/pgtable_page_dtor/pgtable_pte_page_dtor/}' $FILE;
done
----
... with the documentation re-flowed to remain under 80 columns, and
whitespace fixed up in macros to keep backslashes aligned.
There should be no functional change as a result of this patch.
Link: http://lkml.kernel.org/r/20190722141133.3116-1-mark.rutland@arm.com
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* sun3_pgalloc.h --
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* reorganization around 2.3.39, routines moved from sun3_pgtable.h
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*
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*
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* 02/27/2002 -- Modified to support "highpte" implementation in 2.5.5 (Sam)
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*
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* moved 1/26/2000 Sam Creasey
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*/
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#ifndef _SUN3_PGALLOC_H
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#define _SUN3_PGALLOC_H
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#include <asm/tlb.h>
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#include <asm-generic/pgalloc.h> /* for pte_{alloc,free}_one */
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extern const char bad_pmd_string[];
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#define pmd_alloc_one(mm,address) ({ BUG(); ((pmd_t *)2); })
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#define __pte_free_tlb(tlb,pte,addr) \
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do { \
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pgtable_pte_page_dtor(pte); \
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tlb_remove_page((tlb), pte); \
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} while (0)
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static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
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{
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pmd_val(*pmd) = __pa((unsigned long)pte);
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}
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static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t page)
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{
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pmd_val(*pmd) = __pa((unsigned long)page_address(page));
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}
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#define pmd_pgtable(pmd) pmd_page(pmd)
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/*
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* allocating and freeing a pmd is trivial: the 1-entry pmd is
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* inside the pgd, so has no extra memory associated with it.
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*/
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#define pmd_free(mm, x) do { } while (0)
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#define __pmd_free_tlb(tlb, x, addr) do { } while (0)
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static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
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{
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free_page((unsigned long) pgd);
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}
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static inline pgd_t * pgd_alloc(struct mm_struct *mm)
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{
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pgd_t *new_pgd;
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new_pgd = (pgd_t *)get_zeroed_page(GFP_KERNEL);
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memcpy(new_pgd, swapper_pg_dir, PAGE_SIZE);
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memset(new_pgd, 0, (PAGE_OFFSET >> PGDIR_SHIFT));
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return new_pgd;
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}
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#define pgd_populate(mm, pmd, pte) BUG()
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#endif /* SUN3_PGALLOC_H */
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