Commit-ID: fd7e315988b784509ba3f1b42f539bd0b1fca9bb Gitweb: http://git.kernel.org/tip/fd7e315988b784509ba3f1b42f539bd0b1fca9bb Author: Tom Lendacky <thomas.lenda...@amd.com> AuthorDate: Mon, 17 Jul 2017 16:10:06 -0500 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Tue, 18 Jul 2017 11:38:00 +0200
x86/mm: Simplify p[g4um]d_page() macros Create a pgd_pfn() macro similar to the p[4um]d_pfn() macros and then use the p[g4um]d_pfn() macros in the p[g4um]d_page() macros instead of duplicating the code. Signed-off-by: Tom Lendacky <thomas.lenda...@amd.com> Reviewed-by: Thomas Gleixner <t...@linutronix.de> Reviewed-by: Borislav Petkov <b...@suse.de> Cc: Alexander Potapenko <gli...@google.com> Cc: Andrey Ryabinin <aryabi...@virtuozzo.com> Cc: Andy Lutomirski <l...@kernel.org> Cc: Arnd Bergmann <a...@arndb.de> Cc: Borislav Petkov <b...@alien8.de> Cc: Brijesh Singh <brijesh.si...@amd.com> Cc: Dave Young <dyo...@redhat.com> Cc: Dmitry Vyukov <dvyu...@google.com> Cc: Jonathan Corbet <cor...@lwn.net> Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> Cc: Larry Woodman <lwood...@redhat.com> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Matt Fleming <m...@codeblueprint.co.uk> Cc: Michael S. Tsirkin <m...@redhat.com> Cc: Paolo Bonzini <pbonz...@redhat.com> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Radim Krčmář <rkrc...@redhat.com> Cc: Rik van Riel <r...@redhat.com> Cc: Toshimitsu Kani <toshi.k...@hpe.com> Cc: kasan-...@googlegroups.com Cc: k...@vger.kernel.org Cc: linux-a...@vger.kernel.org Cc: linux-...@vger.kernel.org Cc: linux-...@vger.kernel.org Cc: linux...@kvack.org Link: http://lkml.kernel.org/r/e61eb533a6d0aac941db2723d8aa63ef6b882dee.1500319216.git.thomas.lenda...@amd.com Signed-off-by: Ingo Molnar <mi...@kernel.org> --- arch/x86/include/asm/pgtable.h | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 77037b6..b64ea52 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -195,6 +195,11 @@ static inline unsigned long p4d_pfn(p4d_t p4d) return (p4d_val(p4d) & p4d_pfn_mask(p4d)) >> PAGE_SHIFT; } +static inline unsigned long pgd_pfn(pgd_t pgd) +{ + return (pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT; +} + static inline int p4d_large(p4d_t p4d) { /* No 512 GiB pages yet */ @@ -704,8 +709,7 @@ static inline unsigned long pmd_page_vaddr(pmd_t pmd) * Currently stuck as a macro due to indirect forward reference to * linux/mmzone.h's __section_mem_map_addr() definition: */ -#define pmd_page(pmd) \ - pfn_to_page((pmd_val(pmd) & pmd_pfn_mask(pmd)) >> PAGE_SHIFT) +#define pmd_page(pmd) pfn_to_page(pmd_pfn(pmd)) /* * the pmd page can be thought of an array like this: pmd_t[PTRS_PER_PMD] @@ -773,8 +777,7 @@ static inline unsigned long pud_page_vaddr(pud_t pud) * Currently stuck as a macro due to indirect forward reference to * linux/mmzone.h's __section_mem_map_addr() definition: */ -#define pud_page(pud) \ - pfn_to_page((pud_val(pud) & pud_pfn_mask(pud)) >> PAGE_SHIFT) +#define pud_page(pud) pfn_to_page(pud_pfn(pud)) /* Find an entry in the second-level page table.. */ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) @@ -824,8 +827,7 @@ static inline unsigned long p4d_page_vaddr(p4d_t p4d) * Currently stuck as a macro due to indirect forward reference to * linux/mmzone.h's __section_mem_map_addr() definition: */ -#define p4d_page(p4d) \ - pfn_to_page((p4d_val(p4d) & p4d_pfn_mask(p4d)) >> PAGE_SHIFT) +#define p4d_page(p4d) pfn_to_page(p4d_pfn(p4d)) /* Find an entry in the third-level page table.. */ static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address) @@ -859,7 +861,7 @@ static inline unsigned long pgd_page_vaddr(pgd_t pgd) * Currently stuck as a macro due to indirect forward reference to * linux/mmzone.h's __section_mem_map_addr() definition: */ -#define pgd_page(pgd) pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT) +#define pgd_page(pgd) pfn_to_page(pgd_pfn(pgd)) /* to find an entry in a page-table-directory. */ static inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address)
