Commit c2280be8 authored by Anshuman Khandual's avatar Anshuman Khandual Committed by Linus Torvalds
Browse files

mm: generalize ARCH_HAS_CACHE_LINE_SIZE 

Patch series "mm: some config cleanups", v2.

This series contains config cleanup patches which reduces code
duplication across platforms and also improves maintainability.  There
is no functional change intended with this series.

This patch (of 6):

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.

Link: https://lkml.kernel.org/r/1617259448-22529-1-git-send-email-anshuman.khandual@arm.com
Link: https://lkml.kernel.org/r/1617259448-22529-2-git-send-email-anshuman.khandual@arm.com


Signed-off-by: default avatarAnshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>	[arm64]
Acked-by: Vineet Gupta <vgupta@synopsys.com>		[arc]
Cc: Will Deacon <will@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Palmer Dabbelt <palmerdabbelt@google.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent fce000b1

arch/arc/Kconfig

+1 −3
Original line number Diff line number Diff line
@@ -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

arch/arm64/Kconfig

+1 −3
Original line number Diff line number Diff line
@@ -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
@@ -1074,9 +1075,6 @@ config HW_PERF_EVENTS 
config SYS_SUPPORTS_HUGETLBFS

	def_bool y



config ARCH_HAS_CACHE_LINE_SIZE

	def_bool y



config ARCH_HAS_FILTER_PGPROT

	def_bool y

arch/x86/Kconfig

+1 −3
Original line number Diff line number Diff line
@@ -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
@@ -316,9 +317,6 @@ 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

mm/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -772,6 +772,9 @@ 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