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f133ecca9c
This change introduces a few of the less controversial /proc and /proc/sys interfaces for tile, along with sysfs attributes for various things that were originally proposed as /proc/tile files. It also adjusts the "hardwall" proc API. Arnd Bergmann reviewed the initial arch/tile submission, which included a complete set of all the /proc/tile and /proc/sys/tile knobs that we had added in a somewhat ad hoc way during initial development, and provided feedback on where most of them should go. One knob turned out to be similar enough to the existing /proc/sys/debug/exception-trace that it was re-implemented to use that model instead. Another knob was /proc/tile/grid, which reported the "grid" dimensions of a tile chip (e.g. 8x8 processors = 64-core chip). Arnd suggested looking at sysfs for that, so this change moves that information to a pair of sysfs attributes (chip_width and chip_height) in the /sys/devices/system/cpu directory. We also put the "chip_serial" and "chip_revision" information from our old /proc/tile/board file as attributes in /sys/devices/system/cpu. Other information collected via hypervisor APIs is now placed in /sys/hypervisor. We create a /sys/hypervisor/type file (holding the constant string "tilera") to be parallel with the Xen use of /sys/hypervisor/type holding "xen". We create three top-level files, "version" (the hypervisor's own version), "config_version" (the version of the configuration file), and "hvconfig" (the contents of the configuration file). The remaining information from our old /proc/tile/board and /proc/tile/switch files becomes an attribute group appearing under /sys/hypervisor/board/. Finally, after some feedback from Arnd Bergmann for the previous version of this patch, the /proc/tile/hardwall file is split up into two conceptual parts. First, a directory /proc/tile/hardwall/ which contains one file per active hardwall, each file named after the hardwall's ID and holding a cpulist that says which cpus are enclosed by the hardwall. Second, a /proc/PID file "hardwall" that is either empty (for non-hardwall-using processes) or contains the hardwall ID. Finally, this change pushes the /proc/sys/tile/unaligned_fixup/ directory, with knobs controlling the kernel code for handling the fixup of unaligned exceptions. Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> |
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| asm-offsets.h | ||
| atomic_32.h | ||
| atomic_64.h | ||
| atomic.h | ||
| auxvec.h | ||
| backtrace.h | ||
| bitops_32.h | ||
| bitops_64.h | ||
| bitops.h | ||
| bitsperlong.h | ||
| bug.h | ||
| bugs.h | ||
| byteorder.h | ||
| cache.h | ||
| cacheflush.h | ||
| checksum.h | ||
| compat.h | ||
| cputime.h | ||
| current.h | ||
| delay.h | ||
| device.h | ||
| div64.h | ||
| dma-mapping.h | ||
| dma.h | ||
| edac.h | ||
| elf.h | ||
| emergency-restart.h | ||
| errno.h | ||
| fb.h | ||
| fcntl.h | ||
| fixmap.h | ||
| ftrace.h | ||
| futex.h | ||
| hardirq.h | ||
| hardwall.h | ||
| highmem.h | ||
| homecache.h | ||
| hugetlb.h | ||
| hv_driver.h | ||
| hw_irq.h | ||
| ide.h | ||
| io.h | ||
| ioctl.h | ||
| ioctls.h | ||
| ipc.h | ||
| ipcbuf.h | ||
| irq_regs.h | ||
| irq.h | ||
| irqflags.h | ||
| Kbuild | ||
| kdebug.h | ||
| kexec.h | ||
| kmap_types.h | ||
| linkage.h | ||
| local.h | ||
| memprof.h | ||
| mman.h | ||
| mmu_context.h | ||
| mmu.h | ||
| mmzone.h | ||
| module.h | ||
| msgbuf.h | ||
| mutex.h | ||
| opcode_constants_32.h | ||
| opcode_constants_64.h | ||
| opcode_constants.h | ||
| opcode-tile_32.h | ||
| opcode-tile_64.h | ||
| opcode-tile.h | ||
| page.h | ||
| param.h | ||
| parport.h | ||
| pci.h | ||
| percpu.h | ||
| pgalloc.h | ||
| pgtable_32.h | ||
| pgtable_64.h | ||
| pgtable.h | ||
| poll.h | ||
| posix_types.h | ||
| processor.h | ||
| ptrace.h | ||
| resource.h | ||
| scatterlist.h | ||
| sections.h | ||
| sembuf.h | ||
| serial.h | ||
| setup.h | ||
| shmbuf.h | ||
| shmparam.h | ||
| sigcontext.h | ||
| sigframe.h | ||
| siginfo.h | ||
| signal.h | ||
| smp.h | ||
| socket.h | ||
| sockios.h | ||
| spinlock_32.h | ||
| spinlock_64.h | ||
| spinlock_types.h | ||
| spinlock.h | ||
| stack.h | ||
| stat.h | ||
| statfs.h | ||
| string.h | ||
| swab.h | ||
| syscall.h | ||
| syscalls.h | ||
| system.h | ||
| termbits.h | ||
| termios.h | ||
| thread_info.h | ||
| timex.h | ||
| tlb.h | ||
| tlbflush.h | ||
| topology.h | ||
| traps.h | ||
| types.h | ||
| uaccess.h | ||
| ucontext.h | ||
| unaligned.h | ||
| unistd.h | ||
| user.h | ||
| vga.h | ||
| xor.h | ||