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authorGavin Shan <gshan@redhat.com>2020-09-10 19:59:35 +1000
committerWill Deacon <will@kernel.org>2020-09-11 16:33:43 +0100
commitc0d6de327f18d39ef759aa883bffc3c32bc69015 (patch)
tree98b5a6a085cad7536281d1ab1593b85c73c62807 /arch
parent11e339d53a739e4cf885c1e2a843a4004204d271 (diff)
arm64/mm: Unify CONT_PTE_SHIFT
CONT_PTE_SHIFT actually depends on CONFIG_ARM64_CONT_SHIFT. It's reasonable to reflect the dependency: * This renames CONFIG_ARM64_CONT_SHIFT to CONFIG_ARM64_CONT_PTE_SHIFT, so that we can introduce CONFIG_ARM64_CONT_PMD_SHIFT later. * CONT_{SHIFT, SIZE, MASK}, defined in page-def.h are removed as they are not used by anyone. * CONT_PTE_SHIFT is determined by CONFIG_ARM64_CONT_PTE_SHIFT. Signed-off-by: Gavin Shan <gshan@redhat.com> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/r/20200910095936.20307-2-gshan@redhat.com Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm64/Kconfig2
-rw-r--r--arch/arm64/include/asm/page-def.h5
-rw-r--r--arch/arm64/include/asm/pgtable-hwdef.h4
3 files changed, 2 insertions, 9 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index e21b94061780..4f3b7b24b5e5 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -211,7 +211,7 @@ config ARM64_PAGE_SHIFT
default 14 if ARM64_16K_PAGES
default 12
-config ARM64_CONT_SHIFT
+config ARM64_CONT_PTE_SHIFT
int
default 5 if ARM64_64K_PAGES
default 7 if ARM64_16K_PAGES
diff --git a/arch/arm64/include/asm/page-def.h b/arch/arm64/include/asm/page-def.h
index f99d48ecbeef..2403f7b4cdbf 100644
--- a/arch/arm64/include/asm/page-def.h
+++ b/arch/arm64/include/asm/page-def.h
@@ -11,13 +11,8 @@
#include <linux/const.h>
/* PAGE_SHIFT determines the page size */
-/* CONT_SHIFT determines the number of pages which can be tracked together */
#define PAGE_SHIFT CONFIG_ARM64_PAGE_SHIFT
-#define CONT_SHIFT CONFIG_ARM64_CONT_SHIFT
#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
-#define CONT_SIZE (_AC(1, UL) << (CONT_SHIFT + PAGE_SHIFT))
-#define CONT_MASK (~(CONT_SIZE-1))
-
#endif /* __ASM_PAGE_DEF_H */
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index 8a399e666837..6c9c67f62551 100644
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h
@@ -81,14 +81,12 @@
/*
* Contiguous page definitions.
*/
+#define CONT_PTE_SHIFT (CONFIG_ARM64_CONT_PTE_SHIFT + PAGE_SHIFT)
#ifdef CONFIG_ARM64_64K_PAGES
-#define CONT_PTE_SHIFT (5 + PAGE_SHIFT)
#define CONT_PMD_SHIFT (5 + PMD_SHIFT)
#elif defined(CONFIG_ARM64_16K_PAGES)
-#define CONT_PTE_SHIFT (7 + PAGE_SHIFT)
#define CONT_PMD_SHIFT (5 + PMD_SHIFT)
#else
-#define CONT_PTE_SHIFT (4 + PAGE_SHIFT)
#define CONT_PMD_SHIFT (4 + PMD_SHIFT)
#endif