summaryrefslogtreecommitdiff
path: root/arch/ia64/Kconfig
diff options
context:
space:
mode:
authorPeter Zijlstra <peterz@infradead.org>2022-09-15 13:10:47 +0200
committerPeter Zijlstra <peterz@infradead.org>2022-10-17 16:40:58 +0200
commitd49a0626216b95cd4bf696f6acf55f39a16ab0bb (patch)
tree52349000d2ed416b132b74e58c9f005b9a51211c /arch/ia64/Kconfig
parent24a9c543d2114d416f84e386c2fa90089bd97e4c (diff)
arch: Introduce CONFIG_FUNCTION_ALIGNMENT
Generic function-alignment infrastructure. Architectures can select FUNCTION_ALIGNMENT_xxB symbols; the FUNCTION_ALIGNMENT symbol is then set to the largest such selected size, 0 otherwise. From this the -falign-functions compiler argument and __ALIGN macro are set. This incorporates the DEBUG_FORCE_FUNCTION_ALIGN_64B knob and future alignment requirements for x86_64 (later in this series) into a single place. NOTE: also removes the 0x90 filler byte from the generic __ALIGN primitive, that value makes no sense outside of x86. NOTE: .balign 0 reverts to a no-op. Requested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20220915111143.719248727@infradead.org
Diffstat (limited to 'arch/ia64/Kconfig')
-rw-r--r--arch/ia64/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index c6e06cdc738f..d7e4a24e8644 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -63,6 +63,7 @@ config IA64
select NUMA if !FLATMEM
select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
select ZONE_DMA32
+ select FUNCTION_ALIGNMENT_32B
default y
help
The Itanium Processor Family is Intel's 64-bit successor to