[PATCH 1/6] mm: Generalize ARCH_HAS_CACHE_LINE_SIZE
From: Anshuman Khandual <hidden>
Date: 2021-03-09 08:34:44
Subsystem:
arm64 port (aarch64 architecture), memory management, memory management - core, synopsys arc architecture, the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Catalin Marinas, Will Deacon, Andrew Morton, David Hildenbrand, Vineet Gupta, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
ARCH_HAS_CACHE_LINE_SIZE config has duplicate definitions on platforms that subscribe it. Instead, just make it a generic option which can be selected on applicable platforms. This change reduces code duplication and makes it cleaner. Cc: Vineet Gupta <redacted> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Thomas Gleixner <redacted> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: x86@kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual <redacted> --- arch/arc/Kconfig | 4 +--- arch/arm64/Kconfig | 4 +--- arch/x86/Kconfig | 4 +--- mm/Kconfig | 3 +++ 4 files changed, 6 insertions(+), 9 deletions(-)
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index bc8d6aecfbbd..fab05f7189c0 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig@@ -6,6 +6,7 @@ config ARC def_bool y select ARC_TIMERS + select ARCH_HAS_CACHE_LINE_SIZE select ARCH_HAS_DEBUG_VM_PGTABLE select ARCH_HAS_DMA_PREP_COHERENT select ARCH_HAS_PTE_SPECIAL
@@ -48,9 +49,6 @@ config ARC select HAVE_ARCH_JUMP_LABEL if ISA_ARCV2 && !CPU_ENDIAN_BE32 select SET_FS -config ARCH_HAS_CACHE_LINE_SIZE - def_bool y - config TRACE_IRQFLAGS_SUPPORT def_bool y
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 1f212b47a48a..606a2323e002 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig@@ -11,6 +11,7 @@ config ARM64 select ACPI_PPTT if ACPI select ARCH_HAS_DEBUG_WX select ARCH_BINFMT_ELF_STATE + select ARCH_HAS_CACHE_LINE_SIZE select ARCH_HAS_DEBUG_VIRTUAL select ARCH_HAS_DEBUG_VM_PGTABLE select ARCH_HAS_DMA_PREP_COHERENT
@@ -1057,9 +1058,6 @@ config SYS_SUPPORTS_HUGETLBFS config ARCH_WANT_HUGE_PMD_SHARE -config ARCH_HAS_CACHE_LINE_SIZE - def_bool y - config ARCH_ENABLE_SPLIT_PMD_PTLOCK def_bool y if PGTABLE_LEVELS > 2
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2792879d398e..51d171abb57a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig@@ -61,6 +61,7 @@ config X86 select ARCH_32BIT_OFF_T if X86_32 select ARCH_CLOCKSOURCE_INIT select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI + select ARCH_HAS_CACHE_LINE_SIZE select ARCH_HAS_DEBUG_VIRTUAL select ARCH_HAS_DEBUG_VM_PGTABLE if !X86_PAE select ARCH_HAS_DEVMEM_IS_ALLOWED
@@ -313,9 +314,6 @@ config GENERIC_CALIBRATE_DELAY config ARCH_HAS_CPU_RELAX def_bool y -config ARCH_HAS_CACHE_LINE_SIZE - def_bool y - config ARCH_HAS_FILTER_PGPROT def_bool y
diff --git a/mm/Kconfig b/mm/Kconfig
index 24c045b24b95..1c9a37fc651a 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig@@ -760,6 +760,9 @@ config IDLE_PAGE_TRACKING See Documentation/admin-guide/mm/idle_page_tracking.rst for more details. +config ARCH_HAS_CACHE_LINE_SIZE + bool + config ARCH_HAS_PTE_DEVMAP bool
--
2.20.1
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