arm64: Linux kernel port
Hi Linus,
Please pull the tag below containing the arm64 Linux port. The code lives primarily under arch/arm64/ with a few bits of generic code outside this. Thanks.
The following changes since commit 4cbe5a555fa58a79b6ecbb6c531b8bab0650778d:
Linux 3.6-rc4 (2012-09-01 10:39:58 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64.git arm64-for-linus
for you to fetch changes up to 27aa55c5e5123fa8b8ad0156559d34d7edff58ca:
arm64: ptrace: remove obsolete ptrace request numbers from user headers (2012-09-27 11:46:22 +0100)
----------------------------------------------------------------
Linux support for the 64-bit ARM architecture (AArch64)
Features currently supported:
- 39-bit address space for user and kernel (each)
- 4KB and 64KB page configurations
- Compat (32-bit) user applications (ARMv7, EABI only)
- Flattened Device Tree (mandated for all AArch64 platforms)
- ARM generic timers
----------------------------------------------------------------
Catalin Marinas (26):
fs: Build sys_stat64() and friends if __ARCH_WANT_COMPAT_STAT64
generic: Implement generic ffs/fls using __builtin_* functions
arm64: Assembly macros and definitions
arm64: Kernel booting and initialisation
arm64: Exception handling
arm64: MMU definitions
arm64: MMU initialisation
arm64: MMU fault handling and page table management
arm64: Process management
arm64: CPU support
arm64: Cache maintenance routines
arm64: TLB maintenance functionality
arm64: Atomic operations
arm64: Device specific operations
arm64: DMA mapping API
arm64: SMP support
arm64: ELF definitions
arm64: System calls handling
arm64: Signal handling support
arm64: User access library functions
arm64: Floating point and SIMD
arm64: Add support for /proc/sys/debug/exception-trace
arm64: Miscellaneous header files
arm64: Build infrastructure
arm64: MAINTAINERS update
arm64: Do not set the SMP/nAMP processor bit
Marc Zyngier (3):
arm64: IRQ handling
arm64: Miscellaneous library functions
arm64: Generic timers support
Will Deacon (6):
arm64: VDSO support
arm64: 32-bit (compat) applications support
arm64: Debugging support
arm64: Performance counters support
arm64: Loadable modules
arm64: ptrace: remove obsolete ptrace request numbers from user headers
Documentation/arm64/booting.txt | 152 +++ Documentation/arm64/memory.txt | 73 ++ MAINTAINERS | 6 + arch/arm64/Kconfig | 222 ++++ arch/arm64/Kconfig.debug | 27 + arch/arm64/Makefile | 71 ++ arch/arm64/boot/.gitignore | 2 + arch/arm64/boot/Makefile | 36 + arch/arm64/boot/install.sh | 46 + arch/arm64/configs/defconfig | 85 ++ arch/arm64/include/asm/Kbuild | 51 + arch/arm64/include/asm/arm_generic.h | 100 ++ arch/arm64/include/asm/asm-offsets.h | 1 + arch/arm64/include/asm/assembler.h | 109 ++ arch/arm64/include/asm/atomic.h | 305 ++++++ arch/arm64/include/asm/auxvec.h | 22 + arch/arm64/include/asm/barrier.h | 52 + arch/arm64/include/asm/bitops.h | 53 + arch/arm64/include/asm/bitsperlong.h | 23 + arch/arm64/include/asm/byteorder.h | 21 + arch/arm64/include/asm/cache.h | 32 + arch/arm64/include/asm/cacheflush.h | 148 +++ arch/arm64/include/asm/cachetype.h | 48 + arch/arm64/include/asm/cmpxchg.h | 173 ++++ arch/arm64/include/asm/compat.h | 242 +++++ arch/arm64/include/asm/compiler.h | 30 + arch/arm64/include/asm/cputable.h | 30 + arch/arm64/include/asm/cputype.h | 49 + arch/arm64/include/asm/debug-monitors.h | 88 ++ arch/arm64/include/asm/device.h | 26 + arch/arm64/include/asm/dma-mapping.h | 124 +++ arch/arm64/include/asm/elf.h | 179 ++++ arch/arm64/include/asm/exception.h | 23 + arch/arm64/include/asm/exec.h | 23 + arch/arm64/include/asm/fb.h | 34 + arch/arm64/include/asm/fcntl.h | 29 + arch/arm64/include/asm/fpsimd.h | 64 ++ arch/arm64/include/asm/futex.h | 136 +++ arch/arm64/include/asm/hardirq.h | 52 + arch/arm64/include/asm/hw_breakpoint.h | 137 +++ arch/arm64/include/asm/hwcap.h | 53 + arch/arm64/include/asm/io.h | 258 +++++ arch/arm64/include/asm/irq.h | 8 + arch/arm64/include/asm/irqflags.h | 91 ++ arch/arm64/include/asm/memblock.h | 21 + arch/arm64/include/asm/memory.h | 144 +++ arch/arm64/include/asm/mmu.h | 30 + arch/arm64/include/asm/mmu_context.h | 152 +++ arch/arm64/include/asm/module.h | 23 + arch/arm64/include/asm/page.h | 67 ++ arch/arm64/include/asm/param.h | 23 + arch/arm64/include/asm/perf_event.h | 22 + arch/arm64/include/asm/pgalloc.h | 113 ++ arch/arm64/include/asm/pgtable-2level-hwdef.h | 43 + arch/arm64/include/asm/pgtable-2level-types.h | 60 ++ arch/arm64/include/asm/pgtable-3level-hwdef.h | 50 + arch/arm64/include/asm/pgtable-3level-types.h | 66 ++ arch/arm64/include/asm/pgtable-hwdef.h | 94 ++ arch/arm64/include/asm/pgtable.h | 328 ++++++ arch/arm64/include/asm/pmu.h | 82 ++ arch/arm64/include/asm/proc-fns.h | 50 + arch/arm64/include/asm/processor.h | 175 ++++ arch/arm64/include/asm/prom.h | 1 + arch/arm64/include/asm/ptrace.h | 207 ++++ arch/arm64/include/asm/setup.h | 26 + arch/arm64/include/asm/shmparam.h | 28 + arch/arm64/include/asm/sigcontext.h | 69 ++ arch/arm64/include/asm/siginfo.h | 23 + arch/arm64/include/asm/signal.h | 24 + arch/arm64/include/asm/signal32.h | 53 + arch/arm64/include/asm/smp.h | 69 ++ arch/arm64/include/asm/sparsemem.h | 24 + arch/arm64/include/asm/spinlock.h | 202 ++++ arch/arm64/include/asm/spinlock_types.h | 38 + arch/arm64/include/asm/stacktrace.h | 29 + arch/arm64/include/asm/stat.h | 62 ++ arch/arm64/include/asm/statfs.h | 23 + arch/arm64/include/asm/syscall.h | 101 ++ arch/arm64/include/asm/syscalls.h | 40 + arch/arm64/include/asm/system_misc.h | 54 + arch/arm64/include/asm/thread_info.h | 127 +++ arch/arm64/include/asm/timex.h | 29 + arch/arm64/include/asm/tlb.h | 190 ++++ arch/arm64/include/asm/tlbflush.h | 122 +++ arch/arm64/include/asm/traps.h | 30 + arch/arm64/include/asm/uaccess.h | 297 ++++++ arch/arm64/include/asm/ucontext.h | 30 + arch/arm64/include/asm/unistd.h | 27 + arch/arm64/include/asm/unistd32.h | 758 ++++++++++++++ arch/arm64/include/asm/vdso.h | 41 + arch/arm64/include/asm/vdso_datapage.h | 43 + arch/arm64/kernel/.gitignore | 1 + arch/arm64/kernel/Makefile | 27 + arch/arm64/kernel/arm64ksyms.c | 46 + arch/arm64/kernel/asm-offsets.c | 108 ++ arch/arm64/kernel/cputable.c | 33 + arch/arm64/kernel/debug-monitors.c | 288 ++++++ arch/arm64/kernel/entry-fpsimd.S | 80 ++ arch/arm64/kernel/entry.S | 695 +++++++++++++ arch/arm64/kernel/fpsimd.c | 106 ++ arch/arm64/kernel/head.S | 510 +++++++++ arch/arm64/kernel/hw_breakpoint.c | 880 ++++++++++++++++ arch/arm64/kernel/io.c | 64 ++ arch/arm64/kernel/irq.c | 84 ++ arch/arm64/kernel/kuser32.S | 77 ++ arch/arm64/kernel/module.c | 456 ++++++++ arch/arm64/kernel/perf_event.c | 1368 +++++++++++++++++++++++++ arch/arm64/kernel/process.c | 408 ++++++++ arch/arm64/kernel/ptrace.c | 1126 ++++++++++++++++++++ arch/arm64/kernel/setup.c | 347 +++++++ arch/arm64/kernel/signal.c | 437 ++++++++ arch/arm64/kernel/signal32.c | 876 ++++++++++++++++ arch/arm64/kernel/smp.c | 469 +++++++++ arch/arm64/kernel/stacktrace.c | 127 +++ arch/arm64/kernel/sys.c | 138 +++ arch/arm64/kernel/sys32.S | 282 +++++ arch/arm64/kernel/sys_compat.c | 164 +++ arch/arm64/kernel/time.c | 65 ++ arch/arm64/kernel/traps.c | 348 +++++++ arch/arm64/kernel/vdso.c | 261 +++++ arch/arm64/kernel/vdso/.gitignore | 2 + arch/arm64/kernel/vdso/Makefile | 63 ++ arch/arm64/kernel/vdso/gen_vdso_offsets.sh | 15 + arch/arm64/kernel/vdso/gettimeofday.S | 242 +++++ arch/arm64/kernel/vdso/note.S | 28 + arch/arm64/kernel/vdso/sigreturn.S | 37 + arch/arm64/kernel/vdso/vdso.S | 33 + arch/arm64/kernel/vdso/vdso.lds.S | 100 ++ arch/arm64/kernel/vmlinux.lds.S | 126 +++ arch/arm64/lib/Makefile | 4 + arch/arm64/lib/bitops.c | 25 + arch/arm64/lib/clear_page.S | 39 + arch/arm64/lib/clear_user.S | 58 ++ arch/arm64/lib/copy_from_user.S | 66 ++ arch/arm64/lib/copy_in_user.S | 63 ++ arch/arm64/lib/copy_page.S | 46 + arch/arm64/lib/copy_to_user.S | 61 ++ arch/arm64/lib/delay.c | 55 + arch/arm64/lib/strncpy_from_user.S | 50 + arch/arm64/lib/strnlen_user.S | 47 + arch/arm64/mm/Makefile | 4 + arch/arm64/mm/cache.S | 168 +++ arch/arm64/mm/context.c | 159 +++ arch/arm64/mm/copypage.c | 34 + arch/arm64/mm/dma-mapping.c | 79 ++ arch/arm64/mm/extable.c | 17 + arch/arm64/mm/fault.c | 534 ++++++++++ arch/arm64/mm/flush.c | 135 +++ arch/arm64/mm/init.c | 437 ++++++++ arch/arm64/mm/ioremap.c | 84 ++ arch/arm64/mm/mm.h | 2 + arch/arm64/mm/mmap.c | 144 +++ arch/arm64/mm/mmu.c | 395 +++++++ arch/arm64/mm/pgd.c | 54 + arch/arm64/mm/proc-macros.S | 55 + arch/arm64/mm/proc.S | 175 ++++ arch/arm64/mm/tlb.S | 71 ++ drivers/clocksource/Kconfig | 5 + drivers/clocksource/Makefile | 1 + drivers/clocksource/arm_generic.c | 232 +++++ fs/stat.c | 4 +- include/asm-generic/bitops/builtin-__ffs.h | 15 + include/asm-generic/bitops/builtin-__fls.h | 15 + include/asm-generic/bitops/builtin-ffs.h | 17 + include/asm-generic/bitops/builtin-fls.h | 16 + include/clocksource/arm_generic.h | 21 + include/linux/elf.h | 3 + init/Kconfig | 3 +- kernel/sysctl.c | 2 +- lib/Kconfig.debug | 6 +- tools/perf/perf.h | 6 + 171 files changed, 21762 insertions(+), 6 deletions(-)
Quoted 4 lines · Catalin Marinas
Please pull the tag below containing the arm64 Linux port. The code lives primarily under
arch/arm64/with a few bits of generic code outside this. Thanks.
Ok, pulled.
However, looking at the non-arm64 changes, I note:
- the UID16 config option *has* to be fixed.
This is not really about arm64, the ugliness comes from every crazy
architecture. But we really need to fix this to have something like a "HAVE_UID16" config option, and have the architectures that support this select that option, so that the UID16 config option can just have a "depends on HAVE_UID16".
Please? Anybody?
- same goes for DEBUG_KMEMLEAK and DEBUG_BUGVERBOSE.
- very similar issues for the crazy mess of "#if defined()" inkernel/sysctl.c. Can we please just add a SYSCTL_EXCEPTION_TRACE config option, and have the architectures that want this just select it?
Hmm? Having new architecture have to mess with these kinds of things, and making the thing continually uglier is just nasty.
I'm sure there are other cases like this elsewhere, but these were the ones that the arm64 pull showed.
Linus
Quoted 7 lines · Linus Torvalds
Quoted 4 lines · Catalin Marinas
Please pull the tag below containing the arm64 Linux port. The code lives primarily under
arch/arm64/with a few bits of generic code outside this. Thanks.Ok, pulled.
Thanks.
Quoted 10 lines
However, looking at the non-arm64 changes, I note:
- the UID16 config option *has* to be fixed.
This is not really about arm64, the ugliness comes from every crazy
architecture. But we really need to fix this to have something like a "HAVE_UID16" config option, and have the architectures that support this select that option, so that the UID16 config option can just have a "depends onHAVE_UID16".
Quoted 8 lines
Please? Anybody?
- same goes for
DEBUG_KMEMLEAKandDEBUG_BUGVERBOSE.- very similar issues for the crazy mess of "#if
defined()" inkernel/sysctl.c. Can we please just add aSYSCTL_EXCEPTION_TRACEconfig option, and have the architectures that want this just select it?
I agree, they don't look nice. I'll post patches to clean them up.
Signature · 1 line
Catalin