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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-03-03 21:06:09 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-03-03 21:06:09 +0100 |
| commit | 8fd5e7a2d9574b3cac1c9264ad1aed3b613ed6fe (patch) | |
| tree | 5696f5d31c6c75b71bfc4852fb234b773e266cfe /arch/Kconfig | |
| parent | Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm (diff) | |
| parent | metag: Provide dma_get_sgtable() (diff) | |
| download | linux-8fd5e7a2d9574b3cac1c9264ad1aed3b613ed6fe.tar.xz linux-8fd5e7a2d9574b3cac1c9264ad1aed3b613ed6fe.zip | |
Merge tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag
Pull new ImgTec Meta architecture from James Hogan:
"This adds core architecture support for Imagination's Meta processor
cores, followed by some later miscellaneous arch/metag cleanups and
fixes which I kept separate to ease review:
- Support for basic Meta 1 (ATP) and Meta 2 (HTP) core architecture
- A few fixes all over, particularly for symbol prefixes
- A few privilege protection fixes
- Several cleanups (setup.c includes, split out a lot of
metag_ksyms.c)
- Fix some missing exports
- Convert hugetlb to use vm_unmapped_area()
- Copy device tree to non-init memory
- Provide dma_get_sgtable()"
* tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag: (61 commits)
metag: Provide dma_get_sgtable()
metag: prom.h: remove declaration of metag_dt_memblock_reserve()
metag: copy devicetree to non-init memory
metag: cleanup metag_ksyms.c includes
metag: move mm/init.c exports out of metag_ksyms.c
metag: move usercopy.c exports out of metag_ksyms.c
metag: move setup.c exports out of metag_ksyms.c
metag: move kick.c exports out of metag_ksyms.c
metag: move traps.c exports out of metag_ksyms.c
metag: move irq enable out of irqflags.h on SMP
genksyms: fix metag symbol prefix on crc symbols
metag: hugetlb: convert to vm_unmapped_area()
metag: export clear_page and copy_page
metag: export metag_code_cache_flush_all
metag: protect more non-MMU memory regions
metag: make TXPRIVEXT bits explicit
metag: kernel/setup.c: sort includes
perf: Enable building perf tools for Meta
metag: add boot time LNKGET/LNKSET check
metag: add __init to metag_cache_probe()
...
Diffstat (limited to 'arch/Kconfig')
| -rw-r--r-- | arch/Kconfig | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index dcd91a85536a..5a1779c93940 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -103,6 +103,22 @@ config UPROBES If in doubt, say "N". +config HAVE_64BIT_ALIGNED_ACCESS + def_bool 64BIT && !HAVE_EFFICIENT_UNALIGNED_ACCESS + help + Some architectures require 64 bit accesses to be 64 bit + aligned, which also requires structs containing 64 bit values + to be 64 bit aligned too. This includes some 32 bit + architectures which can do 64 bit accesses, as well as 64 bit + architectures without unaligned access. + + This symbol should be selected by an architecture if 64 bit + accesses are required to be 64 bit aligned in this way even + though it is not a 64 bit architecture. + + See Documentation/unaligned-memory-access.txt for more + information on the topic of unaligned memory accesses. + config HAVE_EFFICIENT_UNALIGNED_ACCESS bool help |