This is the fifth version (and hopefully final prior to the merge window) of the patchset to the Linux kernel to support the Qualcomm Hexagon architecture. It's mostly just minor cleanups, largely in the debugging areas. A brief summary of changes from the last patchset: * die(): fixed spinlock issues and added misc debug code to match other architectures * fixed getregset/setregset ordering and struct size * enable kgdb on kernel oops * improved stack trace printing * added user.h as part of headers install * used correct IO access for timer regs * removed IRQF_DISABLED from IPI handler These patches are available on Code Aurora: https://www.codeaurora.org/patches/quic/hlk/hexagon-linux-20111018.tar.gz Thanks to everyone for their feedback! -Richard Kuo Richard Kuo (36): Hexagon: Add generic headers Hexagon: Core arch-specific header files Hexagon: Add bitops support Hexagon: Add atomic ops support Hexagon: Add syscalls Hexagon: Add processor and system headers Hexagon: Add threadinfo Hexagon: Add delay functions Hexagon: Add checksum functions Hexagon: Add memcpy and memset accelerated functions Hexagon: Add hypervisor interface Hexagon: Export ksyms defined in assembly files. Hexagon: Support dynamic module loading. Hexagon: Add signal functions Hexagon: Add init_task and process functions Hexagon: Add startup code Hexagon: Add interrupts Hexagon: Add time and timer functions Hexagon: Add ptrace support Hexagon: Provide basic debugging and system trap support. Hexagon: Add SMP support Hexagon: Add locking types and functions Hexagon: Add user access functions Hexagon: Provide basic implementation and/or stubs for I/O routines. Hexagon: Implement basic cache-flush support Hexagon: Implement basic TLB management routines for Hexagon. Hexagon: Provide DMA implementation Hexagon: Add ioremap support Hexagon: Add page table header files & etc. Hexagon: Add page-fault support. Hexagon: kgdb support files Hexagon: Comet platform support Hexagon: Add configuration and makefiles for the Hexagon architecture. Hexagon: Add basic stacktrace functionality for Hexagon architecture. Hexagon: Add self to MAINTAINERS Add extra arch overrides to asm-generic/checksum.h MAINTAINERS | 6 + arch/hexagon/Kconfig | 220 ++++++++++++ arch/hexagon/Makefile | 59 +++ arch/hexagon/configs/comet_defconfig | 85 +++++ arch/hexagon/include/asm/Kbuild | 59 +++ arch/hexagon/include/asm/asm-offsets.h | 1 + arch/hexagon/include/asm/atomic.h | 164 +++++++++ arch/hexagon/include/asm/bitops.h | 301 ++++++++++++++++ arch/hexagon/include/asm/bitsperlong.h | 26 ++ arch/hexagon/include/asm/byteorder.h | 28 ++ arch/hexagon/include/asm/cache.h | 34 ++ arch/hexagon/include/asm/cacheflush.h | 99 ++++++ arch/hexagon/include/asm/checksum.h | 50 +++ arch/hexagon/include/asm/delay.h | 28 ++ arch/hexagon/include/asm/dma-mapping.h | 101 ++++++ arch/hexagon/include/asm/dma.h | 29 ++ arch/hexagon/include/asm/elf.h | 229 ++++++++++++ arch/hexagon/include/asm/fixmap.h | 73 ++++ arch/hexagon/include/asm/fpu.h | 4 + arch/hexagon/include/asm/futex.h | 137 ++++++++ arch/hexagon/include/asm/hexagon_vm.h | 281 +++++++++++++++ arch/hexagon/include/asm/intrinsics.h | 26 ++ arch/hexagon/include/asm/io.h | 326 +++++++++++++++++ arch/hexagon/include/asm/irq.h | 36 ++ arch/hexagon/include/asm/irqflags.h | 62 ++++ arch/hexagon/include/asm/kgdb.h | 43 +++ arch/hexagon/include/asm/linkage.h | 25 ++ arch/hexagon/include/asm/mem-layout.h | 112 ++++++ arch/hexagon/include/asm/mmu.h | 37 ++ arch/hexagon/include/asm/mmu_context.h | 100 ++++++ arch/hexagon/include/asm/module.h | 26 ++ arch/hexagon/include/asm/mutex.h | 8 + arch/hexagon/include/asm/page.h | 157 +++++++++ arch/hexagon/include/asm/param.h | 26 ++ arch/hexagon/include/asm/perf_event.h | 24 ++ arch/hexagon/include/asm/pgalloc.h | 146 ++++++++ arch/hexagon/include/asm/pgtable.h | 518 +++++++++++++++++++++++++++ arch/hexagon/include/asm/processor.h | 123 +++++++ arch/hexagon/include/asm/ptrace.h | 35 ++ arch/hexagon/include/asm/registers.h | 236 +++++++++++++ arch/hexagon/include/asm/setup.h | 29 ++ arch/hexagon/include/asm/sigcontext.h | 33 ++ arch/hexagon/include/asm/signal.h | 26 ++ arch/hexagon/include/asm/smp.h | 44 +++ arch/hexagon/include/asm/spinlock.h | 186 ++++++++++ arch/hexagon/include/asm/spinlock_types.h | 42 +++ arch/hexagon/include/asm/string.h | 32 ++ arch/hexagon/include/asm/suspend.h | 27 ++ arch/hexagon/include/asm/swab.h | 24 ++ arch/hexagon/include/asm/syscall.h | 54 +++ arch/hexagon/include/asm/system.h | 126 +++++++ arch/hexagon/include/asm/thread_info.h | 154 ++++++++ arch/hexagon/include/asm/time.h | 29 ++ arch/hexagon/include/asm/timer-regs.h | 39 ++ arch/hexagon/include/asm/timex.h | 37 ++ arch/hexagon/include/asm/tlb.h | 39 ++ arch/hexagon/include/asm/tlbflush.h | 58 +++ arch/hexagon/include/asm/traps.h | 29 ++ arch/hexagon/include/asm/uaccess.h | 116 ++++++ arch/hexagon/include/asm/unistd.h | 36 ++ arch/hexagon/include/asm/user.h | 81 +++++ arch/hexagon/include/asm/vdso.h | 31 ++ arch/hexagon/include/asm/vm_fault.h | 26 ++ arch/hexagon/include/asm/vm_mmu.h | 111 ++++++ arch/hexagon/kernel/Makefile | 19 + arch/hexagon/kernel/asm-offsets.c | 104 ++++++ arch/hexagon/kernel/dma.c | 220 ++++++++++++ arch/hexagon/kernel/head.S | 162 +++++++++ arch/hexagon/kernel/hexagon_ksyms.c | 42 +++ arch/hexagon/kernel/init_task.c | 54 +++ arch/hexagon/kernel/irq_cpu.c | 90 +++++ arch/hexagon/kernel/kgdb.c | 255 ++++++++++++++ arch/hexagon/kernel/module.c | 162 +++++++++ arch/hexagon/kernel/process.c | 279 +++++++++++++++ arch/hexagon/kernel/ptrace.c | 180 ++++++++++ arch/hexagon/kernel/reset.c | 38 ++ arch/hexagon/kernel/setup.c | 145 ++++++++ arch/hexagon/kernel/signal.c | 345 ++++++++++++++++++ arch/hexagon/kernel/smp.c | 276 +++++++++++++++ arch/hexagon/kernel/stacktrace.c | 66 ++++ arch/hexagon/kernel/syscall.c | 90 +++++ arch/hexagon/kernel/syscalltab.c | 32 ++ arch/hexagon/kernel/time.c | 250 +++++++++++++ arch/hexagon/kernel/topology.c | 52 +++ arch/hexagon/kernel/trampoline.S | 35 ++ arch/hexagon/kernel/traps.c | 454 ++++++++++++++++++++++++ arch/hexagon/kernel/vdso.c | 101 ++++++ arch/hexagon/kernel/vm_entry.S | 269 ++++++++++++++ arch/hexagon/kernel/vm_events.c | 101 ++++++ arch/hexagon/kernel/vm_init_segtable.S | 442 +++++++++++++++++++++++ arch/hexagon/kernel/vm_ops.S | 102 ++++++ arch/hexagon/kernel/vm_switch.S | 95 +++++ arch/hexagon/kernel/vm_vectors.S | 50 +++ arch/hexagon/kernel/vmlinux.lds.S | 93 +++++ arch/hexagon/lib/Makefile | 4 + arch/hexagon/lib/checksum.c | 203 +++++++++++ arch/hexagon/lib/io.c | 91 +++++ arch/hexagon/lib/memcpy.S | 543 +++++++++++++++++++++++++++++ arch/hexagon/lib/memset.S | 316 +++++++++++++++++ arch/hexagon/mm/Makefile | 7 + arch/hexagon/mm/cache.c | 128 +++++++ arch/hexagon/mm/copy_from_user.S | 114 ++++++ arch/hexagon/mm/copy_to_user.S | 92 +++++ arch/hexagon/mm/copy_user_template.S | 185 ++++++++++ arch/hexagon/mm/init.c | 276 +++++++++++++++ arch/hexagon/mm/ioremap.c | 56 +++ arch/hexagon/mm/pgalloc.c | 25 ++ arch/hexagon/mm/strnlen_user.S | 140 ++++++++ arch/hexagon/mm/uaccess.c | 59 +++ arch/hexagon/mm/vm_fault.c | 187 ++++++++++ arch/hexagon/mm/vm_tlb.c | 93 +++++ include/asm-generic/checksum.h | 4 + include/asm-generic/rwsem.h | 132 +++++++ 113 files changed, 12747 insertions(+), 0 deletions(-) create mode 100644 arch/hexagon/Kconfig create mode 100644 arch/hexagon/Makefile create mode 100644 arch/hexagon/configs/comet_defconfig create mode 100644 arch/hexagon/include/asm/Kbuild create mode 100644 arch/hexagon/include/asm/asm-offsets.h create mode 100644 arch/hexagon/include/asm/atomic.h create mode 100644 arch/hexagon/include/asm/bitops.h create mode 100644 arch/hexagon/include/asm/bitsperlong.h create mode 100644 arch/hexagon/include/asm/byteorder.h create mode 100644 arch/hexagon/include/asm/cache.h create mode 100644 arch/hexagon/include/asm/cacheflush.h create mode 100644 arch/hexagon/include/asm/checksum.h create mode 100644 arch/hexagon/include/asm/delay.h create mode 100644 arch/hexagon/include/asm/dma-mapping.h create mode 100644 arch/hexagon/include/asm/dma.h create mode 100644 arch/hexagon/include/asm/elf.h create mode 100644 arch/hexagon/include/asm/fixmap.h create mode 100644 arch/hexagon/include/asm/fpu.h create mode 100644 arch/hexagon/include/asm/futex.h create mode 100644 arch/hexagon/include/asm/hexagon_vm.h create mode 100644 arch/hexagon/include/asm/intrinsics.h create mode 100644 arch/hexagon/include/asm/io.h create mode 100644 arch/hexagon/include/asm/irq.h create mode 100644 arch/hexagon/include/asm/irqflags.h create mode 100644 arch/hexagon/include/asm/kgdb.h create mode 100644 arch/hexagon/include/asm/linkage.h create mode 100644 arch/hexagon/include/asm/mem-layout.h create mode 100644 arch/hexagon/include/asm/mmu.h create mode 100644 arch/hexagon/include/asm/mmu_context.h create mode 100644 arch/hexagon/include/asm/module.h create mode 100644 arch/hexagon/include/asm/mutex.h create mode 100644 arch/hexagon/include/asm/page.h create mode 100644 arch/hexagon/include/asm/param.h create mode 100644 arch/hexagon/include/asm/perf_event.h create mode 100644 arch/hexagon/include/asm/pgalloc.h create mode 100644 arch/hexagon/include/asm/pgtable.h create mode 100644 arch/hexagon/include/asm/processor.h create mode 100644 arch/hexagon/include/asm/ptrace.h create mode 100644 arch/hexagon/include/asm/registers.h create mode 100644 arch/hexagon/include/asm/setup.h create mode 100644 arch/hexagon/include/asm/sigcontext.h create mode 100644 arch/hexagon/include/asm/signal.h create mode 100644 arch/hexagon/include/asm/smp.h create mode 100644 arch/hexagon/include/asm/spinlock.h create mode 100644 arch/hexagon/include/asm/spinlock_types.h create mode 100644 arch/hexagon/include/asm/string.h create mode 100644 arch/hexagon/include/asm/suspend.h create mode 100644 arch/hexagon/include/asm/swab.h create mode 100644 arch/hexagon/include/asm/syscall.h create mode 100644 arch/hexagon/include/asm/system.h create mode 100644 arch/hexagon/include/asm/thread_info.h create mode 100644 arch/hexagon/include/asm/time.h create mode 100644 arch/hexagon/include/asm/timer-regs.h create mode 100644 arch/hexagon/include/asm/timex.h create mode 100644 arch/hexagon/include/asm/tlb.h create mode 100644 arch/hexagon/include/asm/tlbflush.h create mode 100644 arch/hexagon/include/asm/traps.h create mode 100644 arch/hexagon/include/asm/uaccess.h create mode 100644 arch/hexagon/include/asm/unistd.h create mode 100644 arch/hexagon/include/asm/user.h create mode 100644 arch/hexagon/include/asm/vdso.h create mode 100644 arch/hexagon/include/asm/vm_fault.h create mode 100644 arch/hexagon/include/asm/vm_mmu.h create mode 100644 arch/hexagon/kernel/Makefile create mode 100644 arch/hexagon/kernel/asm-offsets.c create mode 100644 arch/hexagon/kernel/dma.c create mode 100644 arch/hexagon/kernel/head.S create mode 100644 arch/hexagon/kernel/hexagon_ksyms.c create mode 100644 arch/hexagon/kernel/init_task.c create mode 100644 arch/hexagon/kernel/irq_cpu.c create mode 100644 arch/hexagon/kernel/kgdb.c create mode 100644 arch/hexagon/kernel/module.c create mode 100644 arch/hexagon/kernel/process.c create mode 100644 arch/hexagon/kernel/ptrace.c create mode 100644 arch/hexagon/kernel/reset.c create mode 100644 arch/hexagon/kernel/setup.c create mode 100644 arch/hexagon/kernel/signal.c create mode 100644 arch/hexagon/kernel/smp.c create mode 100644 arch/hexagon/kernel/stacktrace.c create mode 100644 arch/hexagon/kernel/syscall.c create mode 100644 arch/hexagon/kernel/syscalltab.c create mode 100644 arch/hexagon/kernel/time.c create mode 100644 arch/hexagon/kernel/topology.c create mode 100644 arch/hexagon/kernel/trampoline.S create mode 100644 arch/hexagon/kernel/traps.c create mode 100644 arch/hexagon/kernel/vdso.c create mode 100644 arch/hexagon/kernel/vm_entry.S create mode 100644 arch/hexagon/kernel/vm_events.c create mode 100644 arch/hexagon/kernel/vm_init_segtable.S create mode 100644 arch/hexagon/kernel/vm_ops.S create mode 100644 arch/hexagon/kernel/vm_switch.S create mode 100644 arch/hexagon/kernel/vm_vectors.S create mode 100644 arch/hexagon/kernel/vmlinux.lds.S create mode 100644 arch/hexagon/lib/Makefile create mode 100644 arch/hexagon/lib/checksum.c create mode 100644 arch/hexagon/lib/io.c create mode 100644 arch/hexagon/lib/memcpy.S create mode 100644 arch/hexagon/lib/memset.S create mode 100644 arch/hexagon/mm/Makefile create mode 100644 arch/hexagon/mm/cache.c create mode 100644 arch/hexagon/mm/copy_from_user.S create mode 100644 arch/hexagon/mm/copy_to_user.S create mode 100644 arch/hexagon/mm/copy_user_template.S create mode 100644 arch/hexagon/mm/init.c create mode 100644 arch/hexagon/mm/ioremap.c create mode 100644 arch/hexagon/mm/pgalloc.c create mode 100644 arch/hexagon/mm/strnlen_user.S create mode 100644 arch/hexagon/mm/uaccess.c create mode 100644 arch/hexagon/mm/vm_fault.c create mode 100644 arch/hexagon/mm/vm_tlb.c create mode 100644 include/asm-generic/rwsem.h -- Sent by an employee of the 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