[GIT PULL] arch/tile changes for v3.12

From: Chris Metcalf
Date: Fri Sep 06 2013 - 13:51:43 EST

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Linus,

Please pull the following changes for 3.12 from:

git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile.git master

These changes bring in a bunch of new functionality that has been
maintained internally at Tilera over the last year, plus other stray
bits of work that I've taken into the tile tree from other folks.
The changes include some PCI root complex work, interrupt-driven console
support, support for performing fast-path unaligned data fixups by
kernel-based JIT code generation, CONFIG_PREEMPT support, vDSO support
for gettimeofday(), a serial driver for the tilegx on-chip UART,
KGDB support, more optimized string routines, support for ftrace and
kprobes, improved ASLR, and many bug fixes. We also remove support for
the old TILE64 chip, which is no longer buildable.

Akinobu Mita (1):
tile: use asm-generic/bitops/builtin-*.h

Chen Gang (1):
arch: tile: include: asm: add cmpxchg64() definition

Chris Metcalf (77):
tile: various minor cleanups to hardwall subsystem
tile: convert uses of "inv" to "finv"
tile: optimize and clean up string functions
tile PCI RC: cleanups for tilepro PCI RC
tile PCI RC: tilepro conflict with PCI and RAM addresses
tile PCI RC: support pci=off boot arg for tilepro
tile PCI RC: tweak the the pcie_rc_delay support
tile PCI RC: handle case that PCI link is already up
tile: support LSI MEGARAID SAS HBA hybrid dma_ops
tile PCI RC: support more MSI-X interrupt vectors
tile PCI RC: gentler warning for missing plug-in PCI
tile PCI RC: support I/O space access
tile PCI DMA: handle a NULL dev argument properly
tile PCI RC: restructure TRIO initialization
tile PCI RC: eliminate pci_controller.mem_resources field
tile PCI RC: include pci/pcie/Kconfig
tile PCI RC: bomb comments and whitespace format
tile PCI RC: use proper accessor function
tile PCI RC: add dma_get_required_mask()
tile PCI DMA: fix bug in non-page-aligned accessors
tile PCI RC: support PCIe TRIO 0 MAC 0 on Gx72 system
tile PCI RC: reduce driver's vmalloc space usage
tile PCI RC: remove stale include of linux/numa.h
tile: various console improvements
tile: support "memmap" boot parameter
tile: fix comment bug in sys_cmpxchg description
tile: fix tilegx vmalloc_sync_all BUG_ON
tile: remove unnecessary backslashes in asm-offsets.c
tile: fast-path unaligned memory access for tilegx
tile: avoid recursive backtrace faults
tile: add some tile drivers to MAINTAINERS
tile: fix some issues in hugepage support
tile: remove calls to arch_flush_lazy_mmu_mode()
tile: support CONFIG_PREEMPT
tile: improve big-endian support
tile: make register dumps more readable
tile: improve illegal translation interrupt handling
tile: support simulator notification for ET_DYN objects
tile: implement gettimeofday() via vDSO
tile: avoid struct vm_struct leak
tile: provide traceability for hypervisor calls
tile: use proper .align directives on __ex_table sections
tile: fix panic with large IRQ number
tile: correct r1 value during syscall tracing
tile: allow "initrd" boot argument for kexec
tile: do less L1 I-cache eviction
tile: remove set/clear_fixmap APIs
tile: fix strncpy_from_user bug
tile: group .hottext* sections properly in vmlinux.lds
tile: fix some -Wsign-compare warnings
tile: don't call show_regs_print_info() with corrupt current
tilegx: change how we find the kernel stack
tile: handle super huge pages in virt_to_pte
tile: clean up relocate_kernel_64 debug code
tile: don't assume user privilege is zero
tile: parameterize VA and PA space more cleanly
tilegx: provide kernel support for the tilegx UART shim
tilegx: Add tty serial support for TILE-Gx on-chip UART
tilegx: support KGDB
tile: support reporting Tilera hypervisor statistics
tile: support FRAME_POINTER
tile: add virt_to_kpte() API and clean up and document behavior
tile: remove DEBUG_EXTRA_FLAGS kernel config option
tile PCI RC: add comment about "PCI hole" problem
tile: use asm-generic version of <asm/local64.h>
tile: use standard 'generic-y' model for <asm/hw_irq.h>
tile: check for correct compiler earlier in asm-offsets.c
tile: mark pcibios_init() as __init
tile: change <asm/system.h> to <asm/switch_to.h> in comments
tile: simplify code referencing hypervisor API addresses
tile: use standard tile_bundle_bits type in traps.c
tile: eliminate no-op "noatomichash" boot argument
tile: remove support for TILE64
tile: make __write_once a synonym for __read_mostly
tile PCI RC: make default consistent DMA mask 32-bit
tile: rework <asm/cmpxchg.h>
tile: refresh tile defconfig files

Ken Steele (1):
tile: optimize strnlen using SIMD instructions

Sachin Kamat (1):
edac: Remove redundant platform_set_drvdata()

Tony Lu (3):
tile: support ftrace on tilegx
tile: support kprobes on tilegx
tile: support ASLR fully

Wang Sheng-Hui (1):
tile: add null check for kzalloc in tile/kernel/setup.c

MAINTAINERS | 9 +-
arch/tile/Kconfig | 31 +-
arch/tile/Kconfig.debug | 14 +-
arch/tile/Makefile | 4 -
arch/tile/configs/tilegx_defconfig | 241 +---
arch/tile/configs/tilepro_defconfig | 87 +-
arch/tile/gxio/Kconfig | 5 +
arch/tile/gxio/Makefile | 1 +
arch/tile/gxio/iorpc_trio.c | 23 +
arch/tile/gxio/iorpc_uart.c | 77 ++
arch/tile/gxio/uart.c | 87 ++
arch/tile/include/arch/trio.h | 39 +
arch/tile/include/arch/uart.h | 300 +++++
arch/tile/include/arch/uart_def.h | 120 ++
arch/tile/include/asm/Kbuild | 3 +-
arch/tile/include/asm/atomic.h | 52 +
arch/tile/include/asm/atomic_32.h | 102 +-
arch/tile/include/asm/atomic_64.h | 42 +-
arch/tile/include/asm/barrier.h | 4 -
arch/tile/include/asm/bitops.h | 41 +-
arch/tile/include/asm/bitops_32.h | 2 +-
arch/tile/include/asm/bitops_64.h | 8 +-
arch/tile/include/asm/cache.h | 13 +-
arch/tile/include/asm/cacheflush.h | 44 +-
arch/tile/include/asm/cmpxchg.h | 93 +-
arch/tile/include/asm/device.h | 5 +-
arch/tile/include/asm/dma-mapping.h | 27 +-
arch/tile/include/asm/elf.h | 10 +-
arch/tile/include/asm/fixmap.h | 8 -
arch/tile/include/asm/ftrace.h | 22 +-
arch/tile/include/asm/futex.h | 1 +
arch/tile/include/asm/homecache.h | 11 +-
arch/tile/include/asm/io.h | 132 ++-
arch/tile/include/asm/irqflags.h | 21 +-
arch/tile/include/asm/{hw_irq.h => kdebug.h} | 18 +-
arch/tile/include/asm/kgdb.h | 71 ++
arch/tile/include/asm/kprobes.h | 79 ++
arch/tile/include/asm/mmu.h | 1 +
arch/tile/include/asm/mmu_context.h | 2 +-
arch/tile/include/asm/mmzone.h | 2 +-
arch/tile/include/asm/page.h | 61 +-
arch/tile/include/asm/pci.h | 22 +-
arch/tile/include/asm/pgtable_32.h | 4 +-
arch/tile/include/asm/pgtable_64.h | 27 +-
arch/tile/include/asm/processor.h | 84 +-
arch/tile/include/asm/ptrace.h | 6 +-
arch/tile/include/asm/sections.h | 8 +-
arch/tile/include/asm/setup.h | 3 +-
arch/tile/include/asm/smp.h | 2 -
arch/tile/include/asm/spinlock_64.h | 4 +-
arch/tile/include/asm/string.h | 2 +
arch/tile/include/asm/thread_info.h | 6 +
arch/tile/include/asm/traps.h | 13 +-
arch/tile/include/asm/uaccess.h | 37 +-
arch/tile/include/asm/unaligned.h | 14 +-
arch/tile/include/asm/vdso.h | 49 +
arch/tile/include/gxio/iorpc_trio.h | 5 +
arch/tile/include/gxio/iorpc_uart.h | 40 +
arch/tile/include/gxio/uart.h | 105 ++
arch/tile/include/hv/drv_trio_intf.h | 8 +-
arch/tile/include/hv/drv_uart_intf.h | 33 +
arch/tile/include/hv/hypervisor.h | 61 +-
arch/tile/include/uapi/arch/Kbuild | 1 -
arch/tile/include/uapi/arch/chip.h | 4 +-
arch/tile/include/uapi/arch/chip_tile64.h | 258 -----
arch/tile/include/uapi/arch/opcode_tilegx.h | 1 +
arch/tile/include/uapi/arch/opcode_tilepro.h | 1 +
arch/tile/include/uapi/arch/spr_def_32.h | 2 -
arch/tile/include/uapi/asm/auxvec.h | 3 +-
arch/tile/include/uapi/asm/cachectl.h | 4 +-
arch/tile/kernel/Makefile | 16 +-
arch/tile/kernel/asm-offsets.c | 52 +-
arch/tile/kernel/compat_signal.c | 3 +-
arch/tile/kernel/early_printk.c | 47 +-
arch/tile/kernel/entry.S | 16 -
arch/tile/kernel/ftrace.c | 246 ++++
arch/tile/kernel/hardwall.c | 28 +-
arch/tile/kernel/head_32.S | 17 +-
arch/tile/kernel/head_64.S | 46 +-
arch/tile/kernel/hvglue.S | 74 ++
arch/tile/kernel/hvglue.lds | 59 -
arch/tile/kernel/hvglue_trace.c | 266 +++++
arch/tile/kernel/intvec_32.S | 114 +-
arch/tile/kernel/intvec_64.S | 305 ++++-
arch/tile/kernel/irq.c | 8 +-
arch/tile/kernel/kgdb.c | 499 ++++++++
arch/tile/kernel/kprobes.c | 528 +++++++++
arch/tile/kernel/mcount_64.S | 224 ++++
arch/tile/kernel/pci-dma.c | 74 +-
arch/tile/kernel/pci.c | 33 +-
arch/tile/kernel/pci_gx.c | 727 +++++++-----
arch/tile/kernel/proc.c | 2 -
arch/tile/kernel/process.c | 116 +-
arch/tile/kernel/ptrace.c | 19 +-
arch/tile/kernel/reboot.c | 2 -
arch/tile/kernel/regs_32.S | 4 +-
arch/tile/kernel/regs_64.S | 4 +-
arch/tile/kernel/relocate_kernel_32.S | 27 +-
arch/tile/kernel/relocate_kernel_64.S | 11 +-
arch/tile/kernel/setup.c | 162 ++-
arch/tile/kernel/signal.c | 3 +-
arch/tile/kernel/single_step.c | 118 +-
arch/tile/kernel/smp.c | 22 +-
arch/tile/kernel/smpboot.c | 8 +-
arch/tile/kernel/stack.c | 51 +-
arch/tile/kernel/sys.c | 4 +-
arch/tile/kernel/sysfs.c | 76 ++
arch/tile/kernel/time.c | 37 +-
arch/tile/kernel/tlb.c | 8 +-
arch/tile/kernel/traps.c | 89 +-
arch/tile/kernel/unaligned.c | 1609 ++++++++++++++++++++++++++
arch/tile/kernel/vdso.c | 212 ++++
arch/tile/kernel/vdso/Makefile | 118 ++
arch/tile/kernel/vdso/vdso.S | 28 +
arch/tile/kernel/vdso/vdso.lds.S | 87 ++
arch/tile/kernel/vdso/vdso32.S | 28 +
arch/tile/kernel/vdso/vgettimeofday.c | 107 ++
arch/tile/kernel/vdso/vrt_sigreturn.S | 30 +
arch/tile/kernel/vmlinux.lds.S | 31 +-
arch/tile/lib/Makefile | 16 +-
arch/tile/lib/atomic_32.c | 133 +--
arch/tile/lib/atomic_asm_32.S | 1 +
arch/tile/lib/cacheflush.c | 16 +-
arch/tile/lib/exports.c | 7 +-
arch/tile/lib/memchr_64.c | 2 +-
arch/tile/lib/memcpy_32.S | 63 +-
arch/tile/lib/memcpy_64.c | 264 +++--
arch/tile/lib/memcpy_tile64.c | 276 -----
arch/tile/lib/memcpy_user_64.c | 2 +
arch/tile/lib/memset_32.c | 110 +-
arch/tile/lib/memset_64.c | 9 +-
arch/tile/lib/strchr_32.c | 2 -
arch/tile/lib/strchr_64.c | 2 +-
arch/tile/lib/string-endian.h | 13 +-
arch/tile/lib/strlen_32.c | 2 -
arch/tile/lib/strnlen_32.c | 47 +
arch/tile/lib/strnlen_64.c | 48 +
arch/tile/lib/usercopy_32.S | 36 +-
arch/tile/lib/usercopy_64.S | 36 +-
arch/tile/mm/elf.c | 99 +-
arch/tile/mm/fault.c | 135 ++-
arch/tile/mm/highmem.c | 2 -
arch/tile/mm/homecache.c | 39 +-
arch/tile/mm/hugetlbpage.c | 38 +-
arch/tile/mm/init.c | 96 +-
arch/tile/mm/migrate_32.S | 4 +-
arch/tile/mm/migrate_64.S | 4 +-
arch/tile/mm/mmap.c | 24 +-
arch/tile/mm/pgtable.c | 76 +-
drivers/edac/tile_edac.c | 1 -
drivers/tty/hvc/hvc_tile.c | 149 ++-
drivers/tty/serial/Kconfig | 9 +
drivers/tty/serial/Makefile | 1 +
drivers/tty/serial/tilegx.c | 708 ++++++++++++
include/uapi/linux/serial_core.h | 3 +
samples/kprobes/kprobe_example.c | 9 +
scripts/recordmcount.pl | 4 +
157 files changed, 8708 insertions(+), 2893 deletions(-)
create mode 100644 arch/tile/gxio/iorpc_uart.c
create mode 100644 arch/tile/gxio/uart.c
create mode 100644 arch/tile/include/arch/uart.h
create mode 100644 arch/tile/include/arch/uart_def.h
rename arch/tile/include/asm/{hw_irq.h => kdebug.h} (65%)
create mode 100644 arch/tile/include/asm/kgdb.h
create mode 100644 arch/tile/include/asm/kprobes.h
create mode 100644 arch/tile/include/asm/vdso.h
create mode 100644 arch/tile/include/gxio/iorpc_uart.h
create mode 100644 arch/tile/include/gxio/uart.h
create mode 100644 arch/tile/include/hv/drv_uart_intf.h
delete mode 100644 arch/tile/include/uapi/arch/chip_tile64.h
create mode 100644 arch/tile/kernel/ftrace.c
create mode 100644 arch/tile/kernel/hvglue.S
delete mode 100644 arch/tile/kernel/hvglue.lds
create mode 100644 arch/tile/kernel/hvglue_trace.c
create mode 100644 arch/tile/kernel/kgdb.c
create mode 100644 arch/tile/kernel/kprobes.c
create mode 100644 arch/tile/kernel/mcount_64.S
create mode 100644 arch/tile/kernel/unaligned.c
create mode 100644 arch/tile/kernel/vdso.c
create mode 100644 arch/tile/kernel/vdso/Makefile
create mode 100644 arch/tile/kernel/vdso/vdso.S
create mode 100644 arch/tile/kernel/vdso/vdso.lds.S
create mode 100644 arch/tile/kernel/vdso/vdso32.S
create mode 100644 arch/tile/kernel/vdso/vgettimeofday.c
create mode 100644 arch/tile/kernel/vdso/vrt_sigreturn.S
delete mode 100644 arch/tile/lib/memcpy_tile64.c
create mode 100644 arch/tile/lib/strnlen_32.c
create mode 100644 arch/tile/lib/strnlen_64.c
create mode 100644 drivers/tty/serial/tilegx.c

--
Chris Metcalf, Tilera Corp.
http://www.tilera.com

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