This is the fourth version of the patchset to the Linux kernel to support the Qualcomm Hexagon architecture. These patches have been organized like previously in a somewhat logically grouped fashion. A brief summary of changes from the last patchset: * changes associated with removing pt_regs from user_context * removal of arch-specific ptrace cases; use generic ptrace_request * turn on CONFIG_ARCH_TRACEHOOKS * removal of deprecated sigframe * add magic values for libgcc signal stack unwinding * add memory clobber to IO inlines * use generic show_interrupts * minor timer cleanup * minor SMP IPI cleanup * moved local_irq_enable in do_page_fault These patches are available on Code Aurora: https://www.codeaurora.org/patches/quic/hlk/hexagon-linux-20110916/ Once again, 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 | 60 ++++ 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 | 48 +++ 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 | 83 +++++ 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 | 247 +++++++++++++ arch/hexagon/kernel/module.c | 162 +++++++++ arch/hexagon/kernel/process.c | 279 +++++++++++++++ arch/hexagon/kernel/ptrace.c | 178 ++++++++++ arch/hexagon/kernel/reset.c | 38 ++ arch/hexagon/kernel/setup.c | 145 ++++++++ arch/hexagon/kernel/signal.c | 345 ++++++++++++++++++ arch/hexagon/kernel/smp.c | 280 +++++++++++++++ arch/hexagon/kernel/stacktrace.c | 66 ++++ arch/hexagon/kernel/syscall.c | 90 +++++ arch/hexagon/kernel/syscalltab.c | 32 ++ arch/hexagon/kernel/time.c | 258 ++++++++++++++ arch/hexagon/kernel/topology.c | 52 +++ arch/hexagon/kernel/trampoline.S | 35 ++ arch/hexagon/kernel/traps.c | 370 ++++++++++++++++++++ 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, 12681 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 Qualcomm Innovation Center, Inc. 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