Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
Browse files

Merge tag 'v3.6-rc7' into next

Linux 3.6-rc7

Requested by David Howells so he can merge his key susbsystem work into
my tree with requisite -linus changesets.
  • Loading branch information...
commit bf5308344527d015ac9a6d2bda4ad4d40fd7d943 2 parents 3585e96 + 979570e
James Morris authored
Showing with 3,359 additions and 2,602 deletions.
  1. +12 −0 Documentation/ABI/testing/sysfs-bus-pci
  2. +11 −0 Documentation/ABI/testing/sysfs-platform-ideapad-laptop
  3. +1 −1  Documentation/DocBook/media/v4l/vidioc-g-tuner.xml
  4. +8 −2 Documentation/block/00-INDEX
  5. +77 −0 Documentation/block/cfq-iosched.txt
  6. +64 −0 Documentation/block/queue-sysfs.txt
  7. +4 −4 Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
  8. +6 −6 Documentation/devicetree/bindings/regulator/tps6586x.txt
  9. +1 −1  Documentation/feature-removal-schedule.txt
  10. +11 −0 Documentation/filesystems/vfat.txt
  11. +1 −0  Documentation/i2c/busses/i2c-i801
  12. +17 −2 Documentation/networking/netconsole.txt
  13. +3 −3 Documentation/pinctrl.txt
  14. +8 −2 Documentation/vm/hugetlbpage.txt
  15. +2 −0  Documentation/w1/slaves/w1_therm
  16. +1 −1  Documentation/watchdog/src/watchdog-test.c
  17. +21 −9 MAINTAINERS
  18. +2 −2 Makefile
  19. +2 −0  arch/alpha/Kconfig
  20. +2 −2 arch/alpha/include/asm/atomic.h
  21. +2 −0  arch/alpha/include/asm/fpu.h
  22. +4 −1 arch/alpha/include/asm/ptrace.h
  23. +2 −0  arch/alpha/include/asm/socket.h
  24. +5 −29 arch/alpha/include/asm/uaccess.h
  25. +3 −1 arch/alpha/include/asm/unistd.h
  26. +55 −0 arch/alpha/include/asm/word-at-a-time.h
  27. +0 −3  arch/alpha/kernel/alpha_ksyms.c
  28. +0 −161 arch/alpha/kernel/entry.S
  29. +49 −0 arch/alpha/kernel/osf_sys.c
  30. +19 −0 arch/alpha/kernel/process.c
  31. +3 −1 arch/alpha/kernel/systbls.S
  32. +0 −2  arch/alpha/lib/Makefile
  33. +0 −424 arch/alpha/lib/ev6-strncpy_from_user.S
  34. +0 −107 arch/alpha/lib/ev67-strlen_user.S
  35. +0 −91 arch/alpha/lib/strlen_user.S
  36. +0 −339 arch/alpha/lib/strncpy_from_user.S
  37. +30 −6 arch/alpha/mm/fault.c
  38. +1 −0  arch/alpha/oprofile/common.c
  39. +2 −7 arch/arm/Kconfig
  40. +3 −3 arch/arm/Kconfig.debug
  41. +2 −2 arch/arm/Makefile
  42. +5 −0 arch/arm/boot/compressed/head.S
  43. +5 −0 arch/arm/boot/dts/am33xx.dtsi
  44. +3 −0  arch/arm/boot/dts/at91sam9260.dtsi
  45. +5 −0 arch/arm/boot/dts/at91sam9263.dtsi
  46. +1 −1  arch/arm/boot/dts/at91sam9g25ek.dts
  47. +5 −0 arch/arm/boot/dts/at91sam9g45.dtsi
  48. +4 −0 arch/arm/boot/dts/at91sam9n12.dtsi
  49. +4 −0 arch/arm/boot/dts/at91sam9x5.dtsi
  50. +2 −2 arch/arm/boot/dts/imx51-babbage.dts
  51. +5 −1 arch/arm/boot/dts/kirkwood-iconnect.dts
  52. +3 −0  arch/arm/boot/dts/twl6030.dtsi
  53. +1 −1  arch/arm/configs/armadillo800eva_defconfig
  54. +1 −0  arch/arm/configs/u8500_defconfig
  55. +8 −0 arch/arm/include/asm/assembler.h
  56. +7 −0 arch/arm/include/asm/dma-mapping.h
  57. +3 −0  arch/arm/include/asm/memory.h
  58. +21 −19 arch/arm/include/asm/pgtable.h
  59. +2 −0  arch/arm/include/asm/sched_clock.h
  60. +4 −0 arch/arm/include/asm/tlb.h
  61. +43 −15 arch/arm/include/asm/uaccess.h
  62. +2 −0  arch/arm/include/asm/unistd.h
  63. +1 −0  arch/arm/kernel/calls.S
  64. +44 −18 arch/arm/kernel/hw_breakpoint.c
  65. +24 −0 arch/arm/kernel/sched_clock.c
  66. +46 −2 arch/arm/kernel/smp_twd.c
  67. +1 −1  arch/arm/kernel/topology.c
  68. +7 −4 arch/arm/kernel/traps.c
  69. +20 −3 arch/arm/lib/Makefile
  70. +1 −0  arch/arm/lib/delay.c
  71. +15 −8 arch/arm/lib/getuser.S
  72. +106 −0 arch/arm/lib/io-readsw-armv3.S
  73. +126 −0 arch/arm/lib/io-writesw-armv3.S
  74. +6 −0 arch/arm/lib/putuser.S
  75. +564 −0 arch/arm/lib/uaccess.S
  76. +1 −1  arch/arm/mach-at91/at91rm9200_time.c
  77. +5 −1 arch/arm/mach-at91/at91sam9260_devices.c
  78. +5 −1 arch/arm/mach-at91/at91sam9261_devices.c
  79. +8 −2 arch/arm/mach-at91/at91sam9263_devices.c
  80. +5 −1 arch/arm/mach-at91/at91sam9g45_devices.c
  81. +5 −1 arch/arm/mach-at91/at91sam9rl_devices.c
  82. +12 −0 arch/arm/mach-at91/clock.c
  83. +2 −1  arch/arm/mach-dove/common.c
  84. +7 −0 arch/arm/mach-exynos/mach-origen.c
  85. +7 −0 arch/arm/mach-exynos/mach-smdkv310.c
  86. +1 −0  arch/arm/mach-gemini/irq.c
  87. +5 −5 arch/arm/mach-imx/Makefile
  88. +3 −5 arch/arm/mach-imx/clk-imx25.c
  89. +2 −4 arch/arm/mach-imx/clk-imx35.c
  90. +5 −3 arch/arm/mach-imx/clk-imx6q.c
  91. 0  arch/arm/mach-imx/{head-v7.S → headsmp.S}
  92. +3 −20 arch/arm/mach-imx/hotplug.c
  93. +2 −1  arch/arm/mach-imx/mach-armadillo5x0.c
  94. +2 −2 arch/arm/mach-imx/mach-imx6q.c
  95. +2 −1  arch/arm/mach-kirkwood/Makefile.boot
  96. +9 −2 arch/arm/mach-kirkwood/common.c
  97. +1 −0  arch/arm/mach-kirkwood/db88f6281-bp-setup.c
  98. +1 −1  arch/arm/mach-mmp/sram.c
  99. +1 −1  arch/arm/mach-mv78xx0/addr-map.c
  100. +4 −2 arch/arm/mach-mv78xx0/common.c
  101. +4 −2 arch/arm/mach-omap2/Kconfig
  102. +1 −1  arch/arm/mach-omap2/Makefile
  103. +2 −0  arch/arm/mach-omap2/board-igep0020.c
  104. +1 −0  arch/arm/mach-omap2/board-omap3evm.c
  105. +7 −7 arch/arm/mach-omap2/clock33xx_data.c
  106. +48 −2 arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
  107. +1 −0  arch/arm/mach-omap2/cm-regbits-34xx.h
  108. +0 −11 arch/arm/mach-omap2/common-board-devices.c
  109. +0 −1  arch/arm/mach-omap2/common-board-devices.h
  110. +2 −1  arch/arm/mach-omap2/cpuidle44xx.c
  111. +0 −1  arch/arm/mach-omap2/mux.h
  112. +1 −1  arch/arm/mach-omap2/omap-wakeupgen.c
  113. +1 −0  arch/arm/mach-omap2/omap_hwmod.c
  114. +12 −3 arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
  115. +6 −6 arch/arm/mach-omap2/omap_hwmod_44xx_data.c
  116. +1 −1  arch/arm/mach-omap2/opp4xxx_data.c
  117. +4 −15 arch/arm/mach-omap2/pm34xx.c
  118. +6 −2 arch/arm/mach-omap2/sleep44xx.S
  119. +7 −0 arch/arm/mach-omap2/timer.c
  120. +1 −0  arch/arm/mach-omap2/twl-common.c
  121. +2 −1  arch/arm/mach-orion5x/common.c
  122. +2 −1  arch/arm/mach-s3c24xx/include/mach/dma.h
  123. +7 −6 arch/arm/mach-shmobile/board-armadillo800eva.c
  124. +2 −2 arch/arm/mach-shmobile/board-kzm9g.c
  125. +2 −1  arch/arm/mach-shmobile/board-mackerel.c
  126. +1 −1  arch/arm/mach-shmobile/board-marzen.c
  127. +2 −2 arch/arm/mach-shmobile/intc-sh73a0.c
  128. +0 −1  arch/arm/mach-ux500/Kconfig
  129. +5 −5 arch/arm/mach-ux500/board-mop500-msp.c
  130. +4 −0 arch/arm/mach-ux500/board-mop500.c
  131. +4 −3 arch/arm/mm/context.c
  132. +104 −10 arch/arm/mm/dma-mapping.c
  133. +0 −2  arch/arm/mm/flush.c
  134. +3 −0  arch/arm/mm/mm.h
  135. +4 −4 arch/arm/mm/mmu.c
  136. +3 −3 arch/arm/mm/tlb-v7.S
  137. +1 −0  arch/arm/plat-mxc/include/mach/mx25.h
  138. +3 −3 arch/arm/plat-omap/dmtimer.c
  139. +2 −1  arch/arm/plat-omap/include/plat/cpu.h
  140. +9 −0 arch/arm/plat-omap/include/plat/multi.h
  141. +1 −3 arch/arm/plat-omap/include/plat/uncompress.h
  142. +8 −3 arch/arm/plat-omap/sram.c
  143. +6 −2 arch/arm/plat-orion/common.c
  144. +4 −2 arch/arm/plat-orion/include/plat/common.h
  145. +1 −1  arch/arm/plat-s3c24xx/dma.c
  146. +6 −4 arch/arm/plat-samsung/clock.c
  147. +28 −1 arch/arm/plat-samsung/devs.c
  148. +16 −0 arch/arm/plat-samsung/include/plat/hdmi.h
  149. +1 −1  arch/arm/plat-samsung/pm.c
  150. +2 −0  arch/arm/vfp/vfpmodule.c
  151. +1 −0  arch/blackfin/Kconfig
  152. +0 −1  arch/blackfin/Makefile
  153. +2 −0  arch/blackfin/include/asm/smp.h
  154. +66 −157 arch/blackfin/mach-common/smp.c
  155. +1 −0  arch/c6x/Kconfig
  156. +11 −5 arch/c6x/include/asm/cache.h
  157. +0 −1  arch/ia64/configs/generic_defconfig
  158. +0 −1  arch/ia64/configs/gensparse_defconfig
  159. +1 −0  arch/m68k/Kconfig
  160. +1 −4 arch/m68k/Kconfig.cpu
  161. +0 −6 arch/m68k/platform/coldfire/clk.c
  162. +1 −0  arch/mips/Kconfig
  163. +2 −0  arch/mips/alchemy/board-mtx1.c
  164. +2 −0  arch/mips/ath79/dev-usb.c
  165. +4 −2 arch/mips/ath79/gpio.c
  166. +4 −0 arch/mips/bcm63xx/dev-spi.c
  167. +43 −46 arch/mips/cavium-octeon/octeon-irq.c
  168. +2 −1  arch/mips/include/asm/mach-ath79/ar71xx_regs.h
  169. +0 −1  arch/mips/include/asm/mach-ath79/cpu-feature-overrides.h
  170. +2 −0  arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h
  171. +10 −3 arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
  172. +1 −9 arch/mips/include/asm/mach-cavium-octeon/irq.h
  173. +1 −0  arch/mips/include/asm/module.h
  174. +4 −4 arch/mips/include/asm/r4k-timer.h
  175. +34 −9 arch/mips/kernel/module.c
  176. +1 −1  arch/mips/kernel/smp-cmp.c
  177. +2 −2 arch/mips/kernel/smp.c
  178. +11 −15 arch/mips/kernel/sync-r4k.c
  179. +2 −0  arch/mips/mm/gup.c
  180. +6 −3 arch/mips/mti-malta/malta-int.c
  181. +0 −13 arch/mips/mti-malta/malta-pci.c
  182. +0 −5 arch/mips/mti-malta/malta-platform.c
  183. +22 −0 arch/mips/pci/pci-ar724x.c
  184. +2 −2 arch/parisc/include/asm/atomic.h
  185. +1 −1  arch/parisc/kernel/process.c
  186. +4 −4 arch/parisc/kernel/sys_parisc.c
  187. +7 −0 arch/powerpc/boot/dts/fsl/p4080si-post.dtsi
  188. +10 −21 arch/powerpc/configs/85xx/p1023rds_defconfig
  189. +9 −20 arch/powerpc/configs/corenet32_smp_defconfig
  190. +1 −0  arch/powerpc/configs/corenet64_smp_defconfig
  191. +73 −30 arch/powerpc/configs/g5_defconfig
  192. +5 −13 arch/powerpc/configs/mpc83xx_defconfig
  193. +9 −24 arch/powerpc/configs/mpc85xx_defconfig
  194. +8 −24 arch/powerpc/configs/mpc85xx_smp_defconfig
  195. +0 −2  arch/powerpc/include/asm/cputable.h
  196. +1 −0  arch/powerpc/include/asm/kvm_host.h
  197. +12 −0 arch/powerpc/include/asm/kvm_ppc.h
  198. +1 −0  arch/powerpc/include/asm/mpic_msgr.h
  199. +1 −0  arch/powerpc/include/asm/processor.h
  200. +1 −0  arch/powerpc/kernel/asm-offsets.c
  201. +2 −0  arch/powerpc/kernel/dbell.c
  202. +4 −5 arch/powerpc/kernel/dma-iommu.c
  203. +17 −6 arch/powerpc/kernel/entry_64.S
  204. +2 −1  arch/powerpc/kernel/exceptions-64s.S
  205. +1 −1  arch/powerpc/kernel/hw_breakpoint.c
  206. +2 −0  arch/powerpc/kernel/idle_power7.S
  207. +24 −3 arch/powerpc/kernel/kgdb.c
  208. +2 −10 arch/powerpc/kernel/process.c
  209. +9 −2 arch/powerpc/kernel/smp.c
  210. +4 −4 arch/powerpc/kernel/syscalls.c
  211. +10 −0 arch/powerpc/kernel/sysfs.c
  212. +9 −0 arch/powerpc/kernel/time.c
  213. +2 −1  arch/powerpc/kernel/traps.c
  214. +3 −0  arch/powerpc/kvm/book3s_32_mmu_host.c
  215. +2 −0  arch/powerpc/kvm/book3s_64_mmu_host.c
  216. +7 −5 arch/powerpc/kvm/book3s_hv_rmhandlers.S
  217. +7 −4 arch/powerpc/kvm/e500_tlb.c
  218. +1 −1  arch/powerpc/lib/code-patching.c
  219. +2 −33 arch/powerpc/lib/copyuser_power7.S
  220. +2 −2 arch/powerpc/lib/memcpy_power7.S
  221. +1 −0  arch/powerpc/mm/mem.c
  222. +4 −3 arch/powerpc/mm/numa.c
  223. +1 −1  arch/powerpc/perf/core-book3s.c
  224. +1 −9 arch/powerpc/platforms/powernv/smp.c
  225. +8 −5 arch/powerpc/sysdev/fsl_pci.c
  226. +3 −0  arch/powerpc/sysdev/mpic_msgr.c
  227. +5 −1 arch/powerpc/sysdev/xics/icp-hv.c
  228. +34 −50 arch/powerpc/xmon/xmon.c
  229. +2 −1  arch/s390/include/asm/elf.h
  230. +10 −14 arch/s390/include/asm/hugetlb.h
  231. +1 −2  arch/s390/include/asm/posix_types.h
  232. +1 −0  arch/s390/include/asm/smp.h
  233. +0 −2  arch/s390/include/asm/tlbflush.h
  234. +2 −0  arch/s390/kernel/setup.c
  235. +63 −79 arch/s390/lib/uaccess_pt.c
  236. +5 −5 arch/s390/oprofile/init.c
  237. +1 −1  arch/sh/kernel/cpu/sh5/entry.S
  238. +1 −1  arch/sh/kernel/entry-common.S
  239. +5 −8 arch/sparc/kernel/module.c
  240. +1 −1  arch/um/os-Linux/time.c
  241. +4 −4 arch/x86/Kconfig
  242. +5 −1 arch/x86/Makefile
  243. +1 −1  arch/x86/boot/Makefile
  244. +1 −2  arch/x86/include/asm/spinlock.h
  245. +2 −1  arch/x86/include/asm/xen/page.h
  246. +1 −1  arch/x86/kernel/alternative.c
  247. +10 −0 arch/x86/kernel/apic/io_apic.c
  248. +2 −0  arch/x86/kernel/cpu/common.c
  249. +2 −0  arch/x86/kernel/cpu/perf_event.h
  250. +12 −0 arch/x86/kernel/cpu/perf_event_amd_ibs.c
  251. +33 −2 arch/x86/kernel/cpu/perf_event_intel.c
  252. +14 −0 arch/x86/kernel/cpu/perf_event_intel_ds.c
  253. +2 −1  arch/x86/kernel/cpu/perf_event_intel_lbr.c
  254. +140 −119 arch/x86/kernel/cpu/perf_event_intel_uncore.c
  255. +22 −24 arch/x86/kernel/cpu/perf_event_intel_uncore.h
  256. +1 −1  arch/x86/kernel/irq.c
  257. +4 −3 arch/x86/kernel/microcode_amd.c
  258. +3 −0  arch/x86/kernel/microcode_core.c
  259. +21 −9 arch/x86/kvm/emulate.c
  260. +1 −1  arch/x86/kvm/i8259.c
  261. +9 −4 arch/x86/kvm/mmu.c
  262. +18 −5 arch/x86/kvm/vmx.c
  263. +14 −4 arch/x86/kvm/x86.c
  264. +16 −5 arch/x86/mm/hugetlbpage.c
  265. +1 −1  arch/x86/mm/init.c
  266. +4 −6 arch/x86/mm/pageattr.c
  267. +26 −4 arch/x86/platform/efi/efi.c
  268. +1 −1  arch/x86/realmode/rm/Makefile
  269. +4 −2 arch/x86/syscalls/syscall_64.tbl
  270. +15 −107 arch/x86/xen/enlighten.c
  271. +1 −1  arch/x86/xen/mmu.c
  272. +103 −19 arch/x86/xen/p2m.c
  273. +8 −1 arch/x86/xen/setup.c
  274. +1 −1  arch/x86/xen/suspend.c
  275. +1 −1  arch/x86/xen/xen-ops.h
  276. +5 −3 block/blk-core.c
  277. +28 −13 block/blk-lib.c
  278. +82 −35 block/blk-merge.c
  279. +1 −1  block/genhd.c
  280. +1 −1  block/ioctl.c
  281. +2 −2 crypto/authenc.c
  282. +1 −0  drivers/acpi/acpica/tbxface.c
  283. +10 −0 drivers/acpi/bus.c
  284. +24 −12 drivers/acpi/power.c
  285. +1 −1  drivers/ata/Kconfig
  286. +17 −1 drivers/ata/ahci.c
  287. +1 −0  drivers/ata/ahci.h
  288. +8 −0 drivers/ata/ata_piix.c
  289. +2 −1  drivers/ata/libahci.c
  290. +4 −11 drivers/ata/libata-acpi.c
  291. +2 −1  drivers/ata/libata-core.c
  292. +16 −0 drivers/ata/pata_atiixp.c
  293. +7 −2 drivers/base/core.c
  294. +1 −1  drivers/base/dma-contiguous.c
  295. +5 −8 drivers/base/power/runtime.c
  296. +1 −0  drivers/block/aoe/aoecmd.c
  297. +2 −10 drivers/block/cciss_scsi.c
  298. +14 −1 drivers/block/drbd/drbd_bitmap.c
  299. +1 −0  drivers/block/drbd/drbd_int.h
  300. +12 −16 drivers/block/drbd/drbd_main.c
Sorry, we could not display the entire diff because too many files (1,226) changed.
View
12 Documentation/ABI/testing/sysfs-bus-pci
@@ -210,3 +210,15 @@ Users:
firmware assigned instance number of the PCI
device that can help in understanding the firmware
intended order of the PCI device.
+
+What: /sys/bus/pci/devices/.../d3cold_allowed
+Date: July 2012
+Contact: Huang Ying <ying.huang@intel.com>
+Description:
+ d3cold_allowed is bit to control whether the corresponding PCI
+ device can be put into D3Cold state. If it is cleared, the
+ device will never be put into D3Cold state. If it is set, the
+ device may be put into D3Cold state if other requirements are
+ satisfied too. Reading this attribute will show the current
+ value of d3cold_allowed bit. Writing this attribute will set
+ the value of d3cold_allowed bit.
View
11 Documentation/ABI/testing/sysfs-platform-ideapad-laptop
@@ -5,4 +5,15 @@ Contact: "Ike Panhc <ike.pan@canonical.com>"
Description:
Control the power of camera module. 1 means on, 0 means off.
+What: /sys/devices/platform/ideapad/fan_mode
+Date: June 2012
+KernelVersion: 3.6
+Contact: "Maxim Mikityanskiy <maxtram95@gmail.com>"
+Description:
+ Change fan mode
+ There are four available modes:
+ * 0 -> Super Silent Mode
+ * 1 -> Standard Mode
+ * 2 -> Dust Cleaning
+ * 4 -> Efficient Thermal Dissipation Mode
View
2  Documentation/DocBook/media/v4l/vidioc-g-tuner.xml
@@ -125,7 +125,7 @@ the structure refers to a radio tuner the
<constant>V4L2_TUNER_CAP_NORM</constant> flags can't be used.</para>
<para>If multiple frequency bands are supported, then
<structfield>capability</structfield> is the union of all
-<structfield>capability></structfield> fields of each &v4l2-frequency-band;.
+<structfield>capability</structfield> fields of each &v4l2-frequency-band;.
</para></entry>
</row>
<row>
View
10 Documentation/block/00-INDEX
@@ -3,15 +3,21 @@
biodoc.txt
- Notes on the Generic Block Layer Rewrite in Linux 2.5
capability.txt
- - Generic Block Device Capability (/sys/block/<disk>/capability)
+ - Generic Block Device Capability (/sys/block/<device>/capability)
+cfq-iosched.txt
+ - CFQ IO scheduler tunables
+data-integrity.txt
+ - Block data integrity
deadline-iosched.txt
- Deadline IO scheduler tunables
ioprio.txt
- Block io priorities (in CFQ scheduler)
+queue-sysfs.txt
+ - Queue's sysfs entries
request.txt
- The members of struct request (in include/linux/blkdev.h)
stat.txt
- - Block layer statistics in /sys/block/<dev>/stat
+ - Block layer statistics in /sys/block/<device>/stat
switching-sched.txt
- Switching I/O schedulers at runtime
writeback_cache_control.txt
View
77 Documentation/block/cfq-iosched.txt
@@ -1,3 +1,14 @@
+CFQ (Complete Fairness Queueing)
+===============================
+
+The main aim of CFQ scheduler is to provide a fair allocation of the disk
+I/O bandwidth for all the processes which requests an I/O operation.
+
+CFQ maintains the per process queue for the processes which request I/O
+operation(syncronous requests). In case of asynchronous requests, all the
+requests from all the processes are batched together according to their
+process's I/O priority.
+
CFQ ioscheduler tunables
========================
@@ -25,6 +36,72 @@ there are multiple spindles behind single LUN (Host based hardware RAID
controller or for storage arrays), setting slice_idle=0 might end up in better
throughput and acceptable latencies.
+back_seek_max
+-------------
+This specifies, given in Kbytes, the maximum "distance" for backward seeking.
+The distance is the amount of space from the current head location to the
+sectors that are backward in terms of distance.
+
+This parameter allows the scheduler to anticipate requests in the "backward"
+direction and consider them as being the "next" if they are within this
+distance from the current head location.
+
+back_seek_penalty
+-----------------
+This parameter is used to compute the cost of backward seeking. If the
+backward distance of request is just 1/back_seek_penalty from a "front"
+request, then the seeking cost of two requests is considered equivalent.
+
+So scheduler will not bias toward one or the other request (otherwise scheduler
+will bias toward front request). Default value of back_seek_penalty is 2.
+
+fifo_expire_async
+-----------------
+This parameter is used to set the timeout of asynchronous requests. Default
+value of this is 248ms.
+
+fifo_expire_sync
+----------------
+This parameter is used to set the timeout of synchronous requests. Default
+value of this is 124ms. In case to favor synchronous requests over asynchronous
+one, this value should be decreased relative to fifo_expire_async.
+
+slice_async
+-----------
+This parameter is same as of slice_sync but for asynchronous queue. The
+default value is 40ms.
+
+slice_async_rq
+--------------
+This parameter is used to limit the dispatching of asynchronous request to
+device request queue in queue's slice time. The maximum number of request that
+are allowed to be dispatched also depends upon the io priority. Default value
+for this is 2.
+
+slice_sync
+----------
+When a queue is selected for execution, the queues IO requests are only
+executed for a certain amount of time(time_slice) before switching to another
+queue. This parameter is used to calculate the time slice of synchronous
+queue.
+
+time_slice is computed using the below equation:-
+time_slice = slice_sync + (slice_sync/5 * (4 - prio)). To increase the
+time_slice of synchronous queue, increase the value of slice_sync. Default
+value is 100ms.
+
+quantum
+-------
+This specifies the number of request dispatched to the device queue. In a
+queue's time slice, a request will not be dispatched if the number of request
+in the device exceeds this parameter. This parameter is used for synchronous
+request.
+
+In case of storage with several disk, this setting can limit the parallel
+processing of request. Therefore, increasing the value can imporve the
+performace although this can cause the latency of some I/O to increase due
+to more number of requests.
+
CFQ IOPS Mode for group scheduling
===================================
Basic CFQ design is to provide priority based time slices. Higher priority
View
64 Documentation/block/queue-sysfs.txt
@@ -9,20 +9,71 @@ These files are the ones found in the /sys/block/xxx/queue/ directory.
Files denoted with a RO postfix are readonly and the RW postfix means
read-write.
+add_random (RW)
+----------------
+This file allows to trun off the disk entropy contribution. Default
+value of this file is '1'(on).
+
+discard_granularity (RO)
+-----------------------
+This shows the size of internal allocation of the device in bytes, if
+reported by the device. A value of '0' means device does not support
+the discard functionality.
+
+discard_max_bytes (RO)
+----------------------
+Devices that support discard functionality may have internal limits on
+the number of bytes that can be trimmed or unmapped in a single operation.
+The discard_max_bytes parameter is set by the device driver to the maximum
+number of bytes that can be discarded in a single operation. Discard
+requests issued to the device must not exceed this limit. A discard_max_bytes
+value of 0 means that the device does not support discard functionality.
+
+discard_zeroes_data (RO)
+------------------------
+When read, this file will show if the discarded block are zeroed by the
+device or not. If its value is '1' the blocks are zeroed otherwise not.
+
hw_sector_size (RO)
-------------------
This is the hardware sector size of the device, in bytes.
+iostats (RW)
+-------------
+This file is used to control (on/off) the iostats accounting of the
+disk.
+
+logical_block_size (RO)
+-----------------------
+This is the logcal block size of the device, in bytes.
+
max_hw_sectors_kb (RO)
----------------------
This is the maximum number of kilobytes supported in a single data transfer.
+max_integrity_segments (RO)
+---------------------------
+When read, this file shows the max limit of integrity segments as
+set by block layer which a hardware controller can handle.
+
max_sectors_kb (RW)
-------------------
This is the maximum number of kilobytes that the block layer will allow
for a filesystem request. Must be smaller than or equal to the maximum
size allowed by the hardware.
+max_segments (RO)
+-----------------
+Maximum number of segments of the device.
+
+max_segment_size (RO)
+---------------------
+Maximum segment size of the device.
+
+minimum_io_size (RO)
+--------------------
+This is the smallest preferred io size reported by the device.
+
nomerges (RW)
-------------
This enables the user to disable the lookup logic involved with IO
@@ -45,11 +96,24 @@ per-block-cgroup request pool. IOW, if there are N block cgroups,
each request queue may have upto N request pools, each independently
regulated by nr_requests.
+optimal_io_size (RO)
+--------------------
+This is the optimal io size reported by the device.
+
+physical_block_size (RO)
+------------------------
+This is the physical block size of device, in bytes.
+
read_ahead_kb (RW)
------------------
Maximum number of kilobytes to read-ahead for filesystems on this block
device.
+rotational (RW)
+---------------
+This file is used to stat if the device is of rotational type or
+non-rotational type.
+
rq_affinity (RW)
----------------
If this option is '1', the block layer will migrate request completions to the
View
8 Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
@@ -10,8 +10,8 @@ Required properties:
- compatible : Should be "fsl,<chip>-esdhc"
Optional properties:
-- fsl,cd-internal : Indicate to use controller internal card detection
-- fsl,wp-internal : Indicate to use controller internal write protection
+- fsl,cd-controller : Indicate to use controller internal card detection
+- fsl,wp-controller : Indicate to use controller internal write protection
Examples:
@@ -19,8 +19,8 @@ esdhc@70004000 {
compatible = "fsl,imx51-esdhc";
reg = <0x70004000 0x4000>;
interrupts = <1>;
- fsl,cd-internal;
- fsl,wp-internal;
+ fsl,cd-controller;
+ fsl,wp-controller;
};
esdhc@70008000 {
View
12 Documentation/devicetree/bindings/regulator/tps6586x.txt
@@ -9,9 +9,9 @@ Required properties:
- regulators: list of regulators provided by this controller, must have
property "regulator-compatible" to match their hardware counterparts:
sm[0-2], ldo[0-9] and ldo_rtc
-- sm0-supply: The input supply for the SM0.
-- sm1-supply: The input supply for the SM1.
-- sm2-supply: The input supply for the SM2.
+- vin-sm0-supply: The input supply for the SM0.
+- vin-sm1-supply: The input supply for the SM1.
+- vin-sm2-supply: The input supply for the SM2.
- vinldo01-supply: The input supply for the LDO1 and LDO2
- vinldo23-supply: The input supply for the LDO2 and LDO3
- vinldo4-supply: The input supply for the LDO4
@@ -30,9 +30,9 @@ Example:
#gpio-cells = <2>;
gpio-controller;
- sm0-supply = <&some_reg>;
- sm1-supply = <&some_reg>;
- sm2-supply = <&some_reg>;
+ vin-sm0-supply = <&some_reg>;
+ vin-sm1-supply = <&some_reg>;
+ vin-sm2-supply = <&some_reg>;
vinldo01-supply = <...>;
vinldo23-supply = <...>;
vinldo4-supply = <...>;
View
2  Documentation/feature-removal-schedule.txt
@@ -579,7 +579,7 @@ Why: KVM tracepoints provide mostly equivalent information in a much more
----------------------------
What: at91-mci driver ("CONFIG_MMC_AT91")
-When: 3.7
+When: 3.8
Why: There are two mci drivers: at91-mci and atmel-mci. The PDC support
was added to atmel-mci as a first step to support more chips.
Then at91-mci was kept only for old IP versions (on at91rm9200 and
View
11 Documentation/filesystems/vfat.txt
@@ -137,6 +137,17 @@ errors=panic|continue|remount-ro
without doing anything or remount the partition in
read-only mode (default behavior).
+discard -- If set, issues discard/TRIM commands to the block
+ device when blocks are freed. This is useful for SSD devices
+ and sparse/thinly-provisoned LUNs.
+
+nfs -- This option maintains an index (cache) of directory
+ inodes by i_logstart which is used by the nfs-related code to
+ improve look-ups.
+
+ Enable this only if you want to export the FAT filesystem
+ over NFS
+
<bool>: 0,1,yes,no,true,false
TODO
View
1  Documentation/i2c/busses/i2c-i801
@@ -21,6 +21,7 @@ Supported adapters:
* Intel DH89xxCC (PCH)
* Intel Panther Point (PCH)
* Intel Lynx Point (PCH)
+ * Intel Lynx Point-LP (PCH)
Datasheets: Publicly available at the Intel website
On Intel Patsburg and later chipsets, both the normal host SMBus controller
View
19 Documentation/networking/netconsole.txt
@@ -51,8 +51,23 @@ Built-in netconsole starts immediately after the TCP stack is
initialized and attempts to bring up the supplied dev at the supplied
address.
-The remote host can run either 'netcat -u -l -p <port>',
-'nc -l -u <port>' or syslogd.
+The remote host has several options to receive the kernel messages,
+for example:
+
+1) syslogd
+
+2) netcat
+
+ On distributions using a BSD-based netcat version (e.g. Fedora,
+ openSUSE and Ubuntu) the listening port must be specified without
+ the -p switch:
+
+ 'nc -u -l -p <port>' / 'nc -u -l <port>' or
+ 'netcat -u -l -p <port>' / 'netcat -u -l <port>'
+
+3) socat
+
+ 'socat udp-recv:<port> -'
Dynamic reconfiguration:
========================
View
6 Documentation/pinctrl.txt
@@ -840,9 +840,9 @@ static unsigned long i2c_pin_configs[] = {
static struct pinctrl_map __initdata mapping[] = {
PIN_MAP_MUX_GROUP("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0", "i2c0"),
- PIN_MAP_MUX_CONFIGS_GROUP("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0", i2c_grp_configs),
- PIN_MAP_MUX_CONFIGS_PIN("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0scl", i2c_pin_configs),
- PIN_MAP_MUX_CONFIGS_PIN("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0sda", i2c_pin_configs),
+ PIN_MAP_CONFIGS_GROUP("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0", i2c_grp_configs),
+ PIN_MAP_CONFIGS_PIN("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0scl", i2c_pin_configs),
+ PIN_MAP_CONFIGS_PIN("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0sda", i2c_pin_configs),
};
Finally, some devices expect the mapping table to contain certain specific
View
10 Documentation/vm/hugetlbpage.txt
@@ -299,11 +299,17 @@ map_hugetlb.c.
*******************************************************************
/*
- * hugepage-shm: see Documentation/vm/hugepage-shm.c
+ * map_hugetlb: see tools/testing/selftests/vm/map_hugetlb.c
*/
*******************************************************************
/*
- * hugepage-mmap: see Documentation/vm/hugepage-mmap.c
+ * hugepage-shm: see tools/testing/selftests/vm/hugepage-shm.c
+ */
+
+*******************************************************************
+
+/*
+ * hugepage-mmap: see tools/testing/selftests/vm/hugepage-mmap.c
*/
View
2  Documentation/w1/slaves/w1_therm
@@ -3,6 +3,7 @@ Kernel driver w1_therm
Supported chips:
* Maxim ds18*20 based temperature sensors.
+ * Maxim ds1825 based temperature sensors.
Author: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
@@ -15,6 +16,7 @@ supported family codes:
W1_THERM_DS18S20 0x10
W1_THERM_DS1822 0x22
W1_THERM_DS18B20 0x28
+W1_THERM_DS1825 0x3B
Support is provided through the sysfs w1_slave file. Each open and
read sequence will initiate a temperature conversion then provide two
View
2  Documentation/watchdog/src/watchdog-test.c
@@ -31,7 +31,7 @@ static void keep_alive(void)
* or "-e" to enable the card.
*/
-void term(int sig)
+static void term(int sig)
{
close(fd);
fprintf(stderr, "Stopping watchdog ticks...\n");
View
30 MAINTAINERS
@@ -2217,7 +2217,7 @@ S: Maintained
F: drivers/scsi/tmscsim.*
DC395x SCSI driver
-M: Oliver Neukum <oliver@neukum.name>
+M: Oliver Neukum <oliver@neukum.org>
M: Ali Akcaagac <aliakc@web.de>
M: Jamie Lenehan <lenehan@twibble.org>
W: http://twibble.org/dist/dc395x/
@@ -3388,7 +3388,7 @@ M: "Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de>
L: linux-i2c@vger.kernel.org
W: http://i2c.wiki.kernel.org/
T: quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-i2c/
-T: git git://git.fluff.org/bjdooks/linux.git
+T: git git://git.pengutronix.de/git/wsa/linux.git
S: Maintained
F: Documentation/i2c/
F: drivers/i2c/
@@ -3666,11 +3666,12 @@ F: Documentation/networking/README.ipw2200
F: drivers/net/wireless/ipw2x00/
INTEL(R) TRUSTED EXECUTION TECHNOLOGY (TXT)
-M: Joseph Cihula <joseph.cihula@intel.com>
+M: Richard L Maliszewski <richard.l.maliszewski@intel.com>
+M: Gang Wei <gang.wei@intel.com>
M: Shane Wang <shane.wang@intel.com>
L: tboot-devel@lists.sourceforge.net
W: http://tboot.sourceforge.net
-T: Mercurial http://www.bughost.org/repos.hg/tboot.hg
+T: hg http://tboot.hg.sourceforge.net:8000/hgroot/tboot/tboot
S: Supported
F: Documentation/intel_txt.txt
F: include/linux/tboot.h
@@ -4537,7 +4538,7 @@ S: Supported
F: arch/microblaze/
MICROTEK X6 SCANNER
-M: Oliver Neukum <oliver@neukum.name>
+M: Oliver Neukum <oliver@neukum.org>
S: Maintained
F: drivers/usb/image/microtek.*
@@ -7076,7 +7077,7 @@ F: include/linux/mtd/ubi.h
F: include/mtd/ubi-user.h
USB ACM DRIVER
-M: Oliver Neukum <oliver@neukum.name>
+M: Oliver Neukum <oliver@neukum.org>
L: linux-usb@vger.kernel.org
S: Maintained
F: Documentation/usb/acm.txt
@@ -7097,7 +7098,7 @@ S: Supported
F: drivers/block/ub.c
USB CDC ETHERNET DRIVER
-M: Oliver Neukum <oliver@neukum.name>
+M: Oliver Neukum <oliver@neukum.org>
L: linux-usb@vger.kernel.org
S: Maintained
F: drivers/net/usb/cdc_*.c
@@ -7170,7 +7171,7 @@ F: drivers/usb/host/isp116x*
F: include/linux/usb/isp116x.h
USB KAWASAKI LSI DRIVER
-M: Oliver Neukum <oliver@neukum.name>
+M: Oliver Neukum <oliver@neukum.org>
L: linux-usb@vger.kernel.org
S: Maintained
F: drivers/usb/serial/kl5kusb105.*
@@ -7288,6 +7289,12 @@ W: http://www.connecttech.com
S: Supported
F: drivers/usb/serial/whiteheat*
+USB SMSC75XX ETHERNET DRIVER
+M: Steve Glendinning <steve.glendinning@shawell.net>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/usb/smsc75xx.*
+
USB SMSC95XX ETHERNET DRIVER
M: Steve Glendinning <steve.glendinning@shawell.net>
L: netdev@vger.kernel.org
@@ -7670,23 +7677,28 @@ S: Supported
F: Documentation/hwmon/wm83??
F: arch/arm/mach-s3c64xx/mach-crag6410*
F: drivers/clk/clk-wm83*.c
+F: drivers/extcon/extcon-arizona.c
F: drivers/leds/leds-wm83*.c
F: drivers/gpio/gpio-*wm*.c
+F: drivers/gpio/gpio-arizona.c
F: drivers/hwmon/wm83??-hwmon.c
F: drivers/input/misc/wm831x-on.c
F: drivers/input/touchscreen/wm831x-ts.c
F: drivers/input/touchscreen/wm97*.c
-F: drivers/mfd/wm8*.c
+F: drivers/mfd/arizona*
+F: drivers/mfd/wm*.c
F: drivers/power/wm83*.c
F: drivers/rtc/rtc-wm83*.c
F: drivers/regulator/wm8*.c
F: drivers/video/backlight/wm83*_bl.c
F: drivers/watchdog/wm83*_wdt.c
+F: include/linux/mfd/arizona/
F: include/linux/mfd/wm831x/
F: include/linux/mfd/wm8350/
F: include/linux/mfd/wm8400*
F: include/linux/wm97xx.h
F: include/sound/wm????.h
+F: sound/soc/codecs/arizona.?
F: sound/soc/codecs/wm*
WORKQUEUE
View
4 Makefile
@@ -1,8 +1,8 @@
VERSION = 3
PATCHLEVEL = 6
SUBLEVEL = 0
-EXTRAVERSION = -rc2
-NAME = Saber-toothed Squirrel
+EXTRAVERSION = -rc7
+NAME = Terrified Chipmunk
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"
View
2  arch/alpha/Kconfig
@@ -18,6 +18,8 @@ config ALPHA
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_SMP_IDLE_THREAD
select GENERIC_CMOS_UPDATE
+ select GENERIC_STRNCPY_FROM_USER
+ select GENERIC_STRNLEN_USER
help
The Alpha is a 64-bit general-purpose processor designed and
marketed by the Digital Equipment Corporation of blessed memory,
View
4 arch/alpha/include/asm/atomic.h
@@ -14,8 +14,8 @@
*/
-#define ATOMIC_INIT(i) ( (atomic_t) { (i) } )
-#define ATOMIC64_INIT(i) ( (atomic64_t) { (i) } )
+#define ATOMIC_INIT(i) { (i) }
+#define ATOMIC64_INIT(i) { (i) }
#define atomic_read(v) (*(volatile int *)&(v)->counter)
#define atomic64_read(v) (*(volatile long *)&(v)->counter)
View
2  arch/alpha/include/asm/fpu.h
@@ -1,7 +1,9 @@
#ifndef __ASM_ALPHA_FPU_H
#define __ASM_ALPHA_FPU_H
+#ifdef __KERNEL__
#include <asm/special_insns.h>
+#endif
/*
* Alpha floating-point control register defines:
View
5 arch/alpha/include/asm/ptrace.h
@@ -76,7 +76,10 @@ struct switch_stack {
#define task_pt_regs(task) \
((struct pt_regs *) (task_stack_page(task) + 2*PAGE_SIZE) - 1)
-#define force_successful_syscall_return() (task_pt_regs(current)->r0 = 0)
+#define current_pt_regs() \
+ ((struct pt_regs *) ((char *)current_thread_info() + 2*PAGE_SIZE) - 1)
+
+#define force_successful_syscall_return() (current_pt_regs()->r0 = 0)
#endif
View
2  arch/alpha/include/asm/socket.h
@@ -76,9 +76,11 @@
/* Instruct lower device to use last 4-bytes of skb data as FCS */
#define SO_NOFCS 43
+#ifdef __KERNEL__
/* O_NONBLOCK clashes with the bits used for socket types. Therefore we
* have to define SOCK_NONBLOCK to a different value here.
*/
#define SOCK_NONBLOCK 0x40000000
+#endif /* __KERNEL__ */
#endif /* _ASM_SOCKET_H */
View
34 arch/alpha/include/asm/uaccess.h
@@ -433,36 +433,12 @@ clear_user(void __user *to, long len)
#undef __module_address
#undef __module_call
-/* Returns: -EFAULT if exception before terminator, N if the entire
- buffer filled, else strlen. */
+#define user_addr_max() \
+ (segment_eq(get_fs(), USER_DS) ? TASK_SIZE : ~0UL)
-extern long __strncpy_from_user(char *__to, const char __user *__from, long __to_len);
-
-extern inline long
-strncpy_from_user(char *to, const char __user *from, long n)
-{
- long ret = -EFAULT;
- if (__access_ok((unsigned long)from, 0, get_fs()))
- ret = __strncpy_from_user(to, from, n);
- return ret;
-}
-
-/* Returns: 0 if bad, string length+1 (memory size) of string if ok */
-extern long __strlen_user(const char __user *);
-
-extern inline long strlen_user(const char __user *str)
-{
- return access_ok(VERIFY_READ,str,0) ? __strlen_user(str) : 0;
-}
-
-/* Returns: 0 if exception before NUL or reaching the supplied limit (N),
- * a value greater than N if the limit would be exceeded, else strlen. */
-extern long __strnlen_user(const char __user *, long);
-
-extern inline long strnlen_user(const char __user *str, long n)
-{
- return access_ok(VERIFY_READ,str,0) ? __strnlen_user(str, n) : 0;
-}
+extern long strncpy_from_user(char *dest, const char __user *src, long count);
+extern __must_check long strlen_user(const char __user *str);
+extern __must_check long strnlen_user(const char __user *str, long n);
/*
* About the exception table:
View
4 arch/alpha/include/asm/unistd.h
@@ -465,10 +465,12 @@
#define __NR_setns 501
#define __NR_accept4 502
#define __NR_sendmmsg 503
+#define __NR_process_vm_readv 504
+#define __NR_process_vm_writev 505
#ifdef __KERNEL__
-#define NR_SYSCALLS 504
+#define NR_SYSCALLS 506
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_STAT64
View
55 arch/alpha/include/asm/word-at-a-time.h
@@ -0,0 +1,55 @@
+#ifndef _ASM_WORD_AT_A_TIME_H
+#define _ASM_WORD_AT_A_TIME_H
+
+#include <asm/compiler.h>
+
+/*
+ * word-at-a-time interface for Alpha.
+ */
+
+/*
+ * We do not use the word_at_a_time struct on Alpha, but it needs to be
+ * implemented to humour the generic code.
+ */
+struct word_at_a_time {
+ const unsigned long unused;
+};
+
+#define WORD_AT_A_TIME_CONSTANTS { 0 }
+
+/* Return nonzero if val has a zero */
+static inline unsigned long has_zero(unsigned long val, unsigned long *bits, const struct word_at_a_time *c)
+{
+ unsigned long zero_locations = __kernel_cmpbge(0, val);
+ *bits = zero_locations;
+ return zero_locations;
+}
+
+static inline unsigned long prep_zero_mask(unsigned long val, unsigned long bits, const struct word_at_a_time *c)
+{
+ return bits;
+}
+
+#define create_zero_mask(bits) (bits)
+
+static inline unsigned long find_zero(unsigned long bits)
+{
+#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+ /* Simple if have CIX instructions */
+ return __kernel_cttz(bits);
+#else
+ unsigned long t1, t2, t3;
+ /* Retain lowest set bit only */
+ bits &= -bits;
+ /* Binary search for lowest set bit */
+ t1 = bits & 0xf0;
+ t2 = bits & 0xcc;
+ t3 = bits & 0xaa;
+ if (t1) t1 = 4;
+ if (t2) t2 = 2;
+ if (t3) t3 = 1;
+ return t1 + t2 + t3;
+#endif
+}
+
+#endif /* _ASM_WORD_AT_A_TIME_H */
View
3  arch/alpha/kernel/alpha_ksyms.c
@@ -52,7 +52,6 @@ EXPORT_SYMBOL(alpha_write_fp_reg_s);
/* entry.S */
EXPORT_SYMBOL(kernel_thread);
-EXPORT_SYMBOL(kernel_execve);
/* Networking helper routines. */
EXPORT_SYMBOL(csum_tcpudp_magic);
@@ -74,8 +73,6 @@ EXPORT_SYMBOL(alpha_fp_emul);
*/
EXPORT_SYMBOL(__copy_user);
EXPORT_SYMBOL(__do_clear_user);
-EXPORT_SYMBOL(__strncpy_from_user);
-EXPORT_SYMBOL(__strnlen_user);
/*
* SMP-specific symbols.
View
161 arch/alpha/kernel/entry.S
@@ -663,58 +663,6 @@ kernel_thread:
br ret_to_kernel
.end kernel_thread
-/*
- * kernel_execve(path, argv, envp)
- */
- .align 4
- .globl kernel_execve
- .ent kernel_execve
-kernel_execve:
- /* We can be called from a module. */
- ldgp $gp, 0($27)
- lda $sp, -(32+SIZEOF_PT_REGS+8)($sp)
- .frame $sp, 32+SIZEOF_PT_REGS+8, $26, 0
- stq $26, 0($sp)
- stq $16, 8($sp)
- stq $17, 16($sp)
- stq $18, 24($sp)
- .prologue 1
-
- lda $16, 32($sp)
- lda $17, 0
- lda $18, SIZEOF_PT_REGS
- bsr $26, memset !samegp
-
- /* Avoid the HAE being gratuitously wrong, which would cause us
- to do the whole turn off interrupts thing and restore it. */
- ldq $2, alpha_mv+HAE_CACHE
- stq $2, 152+32($sp)
-
- ldq $16, 8($sp)
- ldq $17, 16($sp)
- ldq $18, 24($sp)
- lda $19, 32($sp)
- bsr $26, do_execve !samegp
-
- ldq $26, 0($sp)
- bne $0, 1f /* error! */
-
- /* Move the temporary pt_regs struct from its current location
- to the top of the kernel stack frame. See copy_thread for
- details for a normal process. */
- lda $16, 0x4000 - SIZEOF_PT_REGS($8)
- lda $17, 32($sp)
- lda $18, SIZEOF_PT_REGS
- bsr $26, memmove !samegp
-
- /* Take that over as our new stack frame and visit userland! */
- lda $sp, 0x4000 - SIZEOF_PT_REGS($8)
- br $31, ret_from_sys_call
-
-1: lda $sp, 32+SIZEOF_PT_REGS+8($sp)
- ret
-.end kernel_execve
-
/*
* Special system calls. Most of these are special in that they either
@@ -797,115 +745,6 @@ sys_rt_sigreturn:
.end sys_rt_sigreturn
.align 4
- .globl sys_sethae
- .ent sys_sethae
-sys_sethae:
- .prologue 0
- stq $16, 152($sp)
- ret
-.end sys_sethae
-
- .align 4
- .globl osf_getpriority
- .ent osf_getpriority
-osf_getpriority:
- lda $sp, -16($sp)
- stq $26, 0($sp)
- .prologue 0
-
- jsr $26, sys_getpriority
-
- ldq $26, 0($sp)
- blt $0, 1f
-
- /* Return value is the unbiased priority, i.e. 20 - prio.
- This does result in negative return values, so signal
- no error by writing into the R0 slot. */
- lda $1, 20
- stq $31, 16($sp)
- subl $1, $0, $0
- unop
-
-1: lda $sp, 16($sp)
- ret
-.end osf_getpriority
-
- .align 4
- .globl sys_getxuid
- .ent sys_getxuid
-sys_getxuid:
- .prologue 0
- ldq $2, TI_TASK($8)
- ldq $3, TASK_CRED($2)
- ldl $0, CRED_UID($3)
- ldl $1, CRED_EUID($3)
- stq $1, 80($sp)
- ret
-.end sys_getxuid
-
- .align 4
- .globl sys_getxgid
- .ent sys_getxgid
-sys_getxgid:
- .prologue 0
- ldq $2, TI_TASK($8)
- ldq $3, TASK_CRED($2)
- ldl $0, CRED_GID($3)
- ldl $1, CRED_EGID($3)
- stq $1, 80($sp)
- ret
-.end sys_getxgid
-
- .align 4
- .globl sys_getxpid
- .ent sys_getxpid
-sys_getxpid:
- .prologue 0
- ldq $2, TI_TASK($8)
-
- /* See linux/kernel/timer.c sys_getppid for discussion
- about this loop. */
- ldq $3, TASK_GROUP_LEADER($2)
- ldq $4, TASK_REAL_PARENT($3)
- ldl $0, TASK_TGID($2)
-1: ldl $1, TASK_TGID($4)
-#ifdef CONFIG_SMP
- mov $4, $5
- mb
- ldq $3, TASK_GROUP_LEADER($2)
- ldq $4, TASK_REAL_PARENT($3)
- cmpeq $4, $5, $5
- beq $5, 1b
-#endif
- stq $1, 80($sp)
- ret
-.end sys_getxpid
-
- .align 4
- .globl sys_alpha_pipe
- .ent sys_alpha_pipe
-sys_alpha_pipe:
- lda $sp, -16($sp)
- stq $26, 0($sp)
- .prologue 0
-
- mov $31, $17
- lda $16, 8($sp)
- jsr $26, do_pipe_flags
-
- ldq $26, 0($sp)
- bne $0, 1f
-
- /* The return values are in $0 and $20. */
- ldl $1, 12($sp)
- ldl $0, 8($sp)
-
- stq $1, 80+16($sp)
-1: lda $sp, 16($sp)
- ret
-.end sys_alpha_pipe
-
- .align 4
.globl sys_execve
.ent sys_execve
sys_execve:
View
49 arch/alpha/kernel/osf_sys.c
@@ -1404,3 +1404,52 @@ SYSCALL_DEFINE3(osf_writev, unsigned long, fd,
}
#endif
+
+SYSCALL_DEFINE2(osf_getpriority, int, which, int, who)
+{
+ int prio = sys_getpriority(which, who);
+ if (prio >= 0) {
+ /* Return value is the unbiased priority, i.e. 20 - prio.
+ This does result in negative return values, so signal
+ no error */
+ force_successful_syscall_return();
+ prio = 20 - prio;
+ }
+ return prio;
+}
+
+SYSCALL_DEFINE0(getxuid)
+{
+ current_pt_regs()->r20 = sys_geteuid();
+ return sys_getuid();
+}
+
+SYSCALL_DEFINE0(getxgid)
+{
+ current_pt_regs()->r20 = sys_getegid();
+ return sys_getgid();
+}
+
+SYSCALL_DEFINE0(getxpid)
+{
+ current_pt_regs()->r20 = sys_getppid();
+ return sys_getpid();
+}
+
+SYSCALL_DEFINE0(alpha_pipe)
+{
+ int fd[2];
+ int res = do_pipe_flags(fd, 0);
+ if (!res) {
+ /* The return values are in $0 and $20. */
+ current_pt_regs()->r20 = fd[1];
+ res = fd[0];
+ }
+ return res;
+}
+
+SYSCALL_DEFINE1(sethae, unsigned long, val)
+{
+ current_pt_regs()->hae = val;
+ return 0;
+}
View
19 arch/alpha/kernel/process.c
@@ -455,3 +455,22 @@ get_wchan(struct task_struct *p)
}
return pc;
}
+
+int kernel_execve(const char *path, const char *const argv[], const char *const envp[])
+{
+ /* Avoid the HAE being gratuitously wrong, which would cause us
+ to do the whole turn off interrupts thing and restore it. */
+ struct pt_regs regs = {.hae = alpha_mv.hae_cache};
+ int err = do_execve(path, argv, envp, &regs);
+ if (!err) {
+ struct pt_regs *p = current_pt_regs();
+ /* copy regs to normal position and off to userland we go... */
+ *p = regs;
+ __asm__ __volatile__ (
+ "mov %0, $sp;"
+ "br $31, ret_from_sys_call"
+ : : "r"(p));
+ }
+ return err;
+}
+EXPORT_SYMBOL(kernel_execve);
View
4 arch/alpha/kernel/systbls.S
@@ -111,7 +111,7 @@ sys_call_table:
.quad sys_socket
.quad sys_connect
.quad sys_accept
- .quad osf_getpriority /* 100 */
+ .quad sys_osf_getpriority /* 100 */
.quad sys_send
.quad sys_recv
.quad sys_sigreturn
@@ -522,6 +522,8 @@ sys_call_table:
.quad sys_setns
.quad sys_accept4
.quad sys_sendmmsg
+ .quad sys_process_vm_readv
+ .quad sys_process_vm_writev /* 505 */
.size sys_call_table, . - sys_call_table
.type sys_call_table, @object
View
2  arch/alpha/lib/Makefile
@@ -31,8 +31,6 @@ lib-y = __divqu.o __remqu.o __divlu.o __remlu.o \
$(ev6-y)memchr.o \
$(ev6-y)copy_user.o \
$(ev6-y)clear_user.o \
- $(ev6-y)strncpy_from_user.o \
- $(ev67-y)strlen_user.o \
$(ev6-y)csum_ipv6_magic.o \
$(ev6-y)clear_page.o \
$(ev6-y)copy_page.o \
View
424 arch/alpha/lib/ev6-strncpy_from_user.S
@@ -1,424 +0,0 @@
-/*
- * arch/alpha/lib/ev6-strncpy_from_user.S
- * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
- *
- * Just like strncpy except in the return value:
- *
- * -EFAULT if an exception occurs before the terminator is copied.
- * N if the buffer filled.
- *
- * Otherwise the length of the string is returned.
- *
- * Much of the information about 21264 scheduling/coding comes from:
- * Compiler Writer's Guide for the Alpha 21264
- * abbreviated as 'CWG' in other comments here
- * ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
- * Scheduling notation:
- * E - either cluster
- * U - upper subcluster; U0 - subcluster U0; U1 - subcluster U1
- * L - lower subcluster; L0 - subcluster L0; L1 - subcluster L1
- * A bunch of instructions got moved and temp registers were changed
- * to aid in scheduling. Control flow was also re-arranged to eliminate
- * branches, and to provide longer code sequences to enable better scheduling.
- * A total rewrite (using byte load/stores for start & tail sequences)
- * is desirable, but very difficult to do without a from-scratch rewrite.
- * Save that for the future.
- */
-
-
-#include <asm/errno.h>
-#include <asm/regdef.h>
-
-
-/* Allow an exception for an insn; exit if we get one. */
-#define EX(x,y...) \
- 99: x,##y; \
- .section __ex_table,"a"; \
- .long 99b - .; \
- lda $31, $exception-99b($0); \
- .previous
-
-
- .set noat
- .set noreorder
- .text
-
- .globl __strncpy_from_user
- .ent __strncpy_from_user
- .frame $30, 0, $26
- .prologue 0
-
- .align 4
-__strncpy_from_user:
- and a0, 7, t3 # E : find dest misalignment
- beq a2, $zerolength # U :
-
- /* Are source and destination co-aligned? */
- mov a0, v0 # E : save the string start
- xor a0, a1, t4 # E :
- EX( ldq_u t1, 0(a1) ) # L : Latency=3 load first quadword
- ldq_u t0, 0(a0) # L : load first (partial) aligned dest quadword
-
- addq a2, t3, a2 # E : bias count by dest misalignment
- subq a2, 1, a3 # E :
- addq zero, 1, t10 # E :
- and t4, 7, t4 # E : misalignment between the two
-
- and a3, 7, t6 # E : number of tail bytes
- sll t10, t6, t10 # E : t10 = bitmask of last count byte
- bne t4, $unaligned # U :
- lda t2, -1 # E : build a mask against false zero
-
- /*
- * We are co-aligned; take care of a partial first word.
- * On entry to this basic block:
- * t0 == the first destination word for masking back in
- * t1 == the first source word.
- */
-
- srl a3, 3, a2 # E : a2 = loop counter = (count - 1)/8
- addq a1, 8, a1 # E :
- mskqh t2, a1, t2 # U : detection in the src word
- nop
-
- /* Create the 1st output word and detect 0's in the 1st input word. */
- mskqh t1, a1, t3 # U :
- mskql t0, a1, t0 # U : assemble the first output word
- ornot t1, t2, t2 # E :
- nop
-
- cmpbge zero, t2, t8 # E : bits set iff null found
- or t0, t3, t0 # E :
- beq a2, $a_eoc # U :
- bne t8, $a_eos # U : 2nd branch in a quad. Bad.
-
- /* On entry to this basic block:
- * t0 == a source quad not containing a null.
- * a0 - current aligned destination address
- * a1 - current aligned source address
- * a2 - count of quadwords to move.
- * NOTE: Loop improvement - unrolling this is going to be
- * a huge win, since we're going to stall otherwise.
- * Fix this later. For _really_ large copies, look
- * at using wh64 on a look-ahead basis. See the code
- * in clear_user.S and copy_user.S.
- * Presumably, since (a0) and (a1) do not overlap (by C definition)
- * Lots of nops here:
- * - Separate loads from stores
- * - Keep it to 1 branch/quadpack so the branch predictor
- * can train.
- */
-$a_loop:
- stq_u t0, 0(a0) # L :
- addq a0, 8, a0 # E :
- nop
- subq a2, 1, a2 # E :
-
- EX( ldq_u t0, 0(a1) ) # L :
- addq a1, 8, a1 # E :
- cmpbge zero, t0, t8 # E : Stall 2 cycles on t0
- beq a2, $a_eoc # U :
-
- beq t8, $a_loop # U :
- nop
- nop
- nop
-
- /* Take care of the final (partial) word store. At this point
- * the end-of-count bit is set in t8 iff it applies.
- *
- * On entry to this basic block we have:
- * t0 == the source word containing the null
- * t8 == the cmpbge mask that found it.
- */
-$a_eos:
- negq t8, t12 # E : find low bit set
- and t8, t12, t12 # E :
-
- /* We're doing a partial word store and so need to combine
- our source and original destination words. */
- ldq_u t1, 0(a0) # L :
- subq t12, 1, t6 # E :
-
- or t12, t6, t8 # E :
- zapnot t0, t8, t0 # U : clear src bytes > null
- zap t1, t8, t1 # U : clear dst bytes <= null
- or t0, t1, t0 # E :
-
- stq_u t0, 0(a0) # L :
- br $finish_up # L0 :
- nop
- nop
-
- /* Add the end-of-count bit to the eos detection bitmask. */
- .align 4
-$a_eoc:
- or t10, t8, t8
- br $a_eos
- nop
- nop
-
-
-/* The source and destination are not co-aligned. Align the destination
- and cope. We have to be very careful about not reading too much and
- causing a SEGV. */
-
- .align 4
-$u_head:
- /* We know just enough now to be able to assemble the first
- full source word. We can still find a zero at the end of it
- that prevents us from outputting the whole thing.
-
- On entry to this basic block:
- t0 == the first dest word, unmasked
- t1 == the shifted low bits of the first source word
- t6 == bytemask that is -1 in dest word bytes */
-
- EX( ldq_u t2, 8(a1) ) # L : load second src word
- addq a1, 8, a1 # E :
- mskql t0, a0, t0 # U : mask trailing garbage in dst
- extqh t2, a1, t4 # U :
-
- or t1, t4, t1 # E : first aligned src word complete
- mskqh t1, a0, t1 # U : mask leading garbage in src
- or t0, t1, t0 # E : first output word complete
- or t0, t6, t6 # E : mask original data for zero test
-
- cmpbge zero, t6, t8 # E :
- beq a2, $u_eocfin # U :
- bne t8, $u_final # U : bad news - 2nd branch in a quad
- lda t6, -1 # E : mask out the bits we have
-
- mskql t6, a1, t6 # U : already seen
- stq_u t0, 0(a0) # L : store first output word
- or t6, t2, t2 # E :
- cmpbge zero, t2, t8 # E : find nulls in second partial
-
- addq a0, 8, a0 # E :
- subq a2, 1, a2 # E :
- bne t8, $u_late_head_exit # U :
- nop
-
- /* Finally, we've got all the stupid leading edge cases taken care
- of and we can set up to enter the main loop. */
-
- extql t2, a1, t1 # U : position hi-bits of lo word
- EX( ldq_u t2, 8(a1) ) # L : read next high-order source word
- addq a1, 8, a1 # E :
- cmpbge zero, t2, t8 # E :
-
- beq a2, $u_eoc # U :
- bne t8, $u_eos # U :
- nop
- nop
-
- /* Unaligned copy main loop. In order to avoid reading too much,
- the loop is structured to detect zeros in aligned source words.
- This has, unfortunately, effectively pulled half of a loop
- iteration out into the head and half into the tail, but it does
- prevent nastiness from accumulating in the very thing we want
- to run as fast as possible.
-
- On entry to this basic block:
- t1 == the shifted high-order bits from the previous source word
- t2 == the unshifted current source word
-
- We further know that t2 does not contain a null terminator. */
-
- /*
- * Extra nops here:
- * separate load quads from store quads
- * only one branch/quad to permit predictor training
- */
-
- .align 4
-$u_loop:
- extqh t2, a1, t0 # U : extract high bits for current word
- addq a1, 8, a1 # E :
- extql t2, a1, t3 # U : extract low bits for next time
- addq a0, 8, a0 # E :
-
- or t0, t1, t0 # E : current dst word now complete
- EX( ldq_u t2, 0(a1) ) # L : load high word for next time
- subq a2, 1, a2 # E :
- nop
-
- stq_u t0, -8(a0) # L : save the current word
- mov t3, t1 # E :
- cmpbge zero, t2, t8 # E : test new word for eos
- beq a2, $u_eoc # U :
-
- beq t8, $u_loop # U :
- nop
- nop
- nop
-
- /* We've found a zero somewhere in the source word we just read.
- If it resides in the lower half, we have one (probably partial)
- word to write out, and if it resides in the upper half, we
- have one full and one partial word left to write out.
-
- On entry to this basic block:
- t1 == the shifted high-order bits from the previous source word
- t2 == the unshifted current source word. */
- .align 4
-$u_eos:
- extqh t2, a1, t0 # U :
- or t0, t1, t0 # E : first (partial) source word complete
- cmpbge zero, t0, t8 # E : is the null in this first bit?
- nop
-
- bne t8, $u_final # U :
- stq_u t0, 0(a0) # L : the null was in the high-order bits
- addq a0, 8, a0 # E :
- subq a2, 1, a2 # E :
-
- .align 4
-$u_late_head_exit:
- extql t2, a1, t0 # U :
- cmpbge zero, t0, t8 # E :
- or t8, t10, t6 # E :
- cmoveq a2, t6, t8 # E :
-
- /* Take care of a final (probably partial) result word.
- On entry to this basic block:
- t0 == assembled source word
- t8 == cmpbge mask that found the null. */
- .align 4
-$u_final:
- negq t8, t6 # E : isolate low bit set
- and t6, t8, t12 # E :
- ldq_u t1, 0(a0) # L :
- subq t12, 1, t6 # E :
-
- or t6, t12, t8 # E :
- zapnot t0, t8, t0 # U : kill source bytes > null
- zap t1, t8, t1 # U : kill dest bytes <= null
- or t0, t1, t0 # E :
-
- stq_u t0, 0(a0) # E :
- br $finish_up # U :
- nop
- nop
-
- .align 4
-$u_eoc: # end-of-count
- extqh t2, a1, t0 # U :
- or t0, t1, t0 # E :
- cmpbge zero, t0, t8 # E :
- nop
-
- .align 4
-$u_eocfin: # end-of-count, final word
- or t10, t8, t8 # E :
- br $u_final # U :
- nop
- nop
-
- /* Unaligned copy entry point. */
- .align 4
-$unaligned:
-
- srl a3, 3, a2 # U : a2 = loop counter = (count - 1)/8
- and a0, 7, t4 # E : find dest misalignment
- and a1, 7, t5 # E : find src misalignment
- mov zero, t0 # E :
-
- /* Conditionally load the first destination word and a bytemask
- with 0xff indicating that the destination byte is sacrosanct. */
-
- mov zero, t6 # E :
- beq t4, 1f # U :
- ldq_u t0, 0(a0) # L :
- lda t6, -1 # E :
-
- mskql t6, a0, t6 # E :
- nop
- nop
- nop
-
- .align 4
-1:
- subq a1, t4, a1 # E : sub dest misalignment from src addr
- /* If source misalignment is larger than dest misalignment, we need
- extra startup checks to avoid SEGV. */
- cmplt t4, t5, t12 # E :
- extql t1, a1, t1 # U : shift src into place
- lda t2, -1 # E : for creating masks later
-
- beq t12, $u_head # U :
- mskqh t2, t5, t2 # U : begin src byte validity mask
- cmpbge zero, t1, t8 # E : is there a zero?
- nop
-
- extql t2, a1, t2 # U :
- or t8, t10, t5 # E : test for end-of-count too
- cmpbge zero, t2, t3 # E :
- cmoveq a2, t5, t8 # E : Latency=2, extra map slot
-
- nop # E : goes with cmov
- andnot t8, t3, t8 # E :
- beq t8, $u_head # U :
- nop
-
- /* At this point we've found a zero in the first partial word of
- the source. We need to isolate the valid source data and mask
- it into the original destination data. (Incidentally, we know
- that we'll need at least one byte of that original dest word.) */
-
- ldq_u t0, 0(a0) # L :
- negq t8, t6 # E : build bitmask of bytes <= zero
- mskqh t1, t4, t1 # U :
- and t6, t8, t12 # E :
-
- subq t12, 1, t6 # E :
- or t6, t12, t8 # E :
- zapnot t2, t8, t2 # U : prepare source word; mirror changes
- zapnot t1, t8, t1 # U : to source validity mask
-
- andnot t0, t2, t0 # E : zero place for source to reside
- or t0, t1, t0 # E : and put it there
- stq_u t0, 0(a0) # L :
- nop
-
- .align 4
-$finish_up:
- zapnot t0, t12, t4 # U : was last byte written null?
- and t12, 0xf0, t3 # E : binary search for the address of the
- cmovne t4, 1, t4 # E : Latency=2, extra map slot
- nop # E : with cmovne
-
- and t12, 0xcc, t2 # E : last byte written
- and t12, 0xaa, t1 # E :
- cmovne t3, 4, t3 # E : Latency=2, extra map slot
- nop # E : with cmovne
-
- bic a0, 7, t0
- cmovne t2, 2, t2 # E : Latency=2, extra map slot
- nop # E : with cmovne
- nop
-
- cmovne t1, 1, t1 # E : Latency=2, extra map slot
- nop # E : with cmovne
- addq t0, t3, t0 # E :
- addq t1, t2, t1 # E :
-
- addq t0, t1, t0 # E :
- addq t0, t4, t0 # add one if we filled the buffer
- subq t0, v0, v0 # find string length
- ret # L0 :
-
- .align 4
-$zerolength:
- nop
- nop
- nop
- clr v0
-
-$exception:
- nop
- nop
- nop
- ret
-
- .end __strncpy_from_user
View
107 arch/alpha/lib/ev67-strlen_user.S
@@ -1,107 +0,0 @@
-/*
- * arch/alpha/lib/ev67-strlen_user.S
- * 21264 version contributed by Rick Gorton <rick.gorton@api-networks.com>
- *
- * Return the length of the string including the NULL terminator
- * (strlen+1) or zero if an error occurred.
- *
- * In places where it is critical to limit the processing time,
- * and the data is not trusted, strnlen_user() should be used.
- * It will return a value greater than its second argument if
- * that limit would be exceeded. This implementation is allowed
- * to access memory beyond the limit, but will not cross a page
- * boundary when doing so.
- *
- * Much of the information about 21264 scheduling/coding comes from:
- * Compiler Writer's Guide for the Alpha 21264
- * abbreviated as 'CWG' in other comments here
- * ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
- * Scheduling notation:
- * E - either cluster
- * U - upper subcluster; U0 - subcluster U0; U1 - subcluster U1
- * L - lower subcluster; L0 - subcluster L0; L1 - subcluster L1
- * Try not to change the actual algorithm if possible for consistency.
- */
-
-#include <asm/regdef.h>
-
-
-/* Allow an exception for an insn; exit if we get one. */
-#define EX(x,y...) \
- 99: x,##y; \
- .section __ex_table,"a"; \
- .long 99b - .; \
- lda v0, $exception-99b(zero); \
- .previous
-
-
- .set noreorder
- .set noat
- .text
-
- .globl __strlen_user
- .ent __strlen_user
- .frame sp, 0, ra
-
- .align 4
-__strlen_user:
- ldah a1, 32767(zero) # do not use plain strlen_user() for strings
- # that might be almost 2 GB long; you should
- # be using strnlen_user() instead
- nop
- nop
- nop
-
- .globl __strnlen_user
-
- .align 4
-__strnlen_user:
- .prologue 0
- EX( ldq_u t0, 0(a0) ) # L : load first quadword (a0 may be misaligned)
- lda t1, -1(zero) # E :
-
- insqh t1, a0, t1 # U :
- andnot a0, 7, v0 # E :
- or t1, t0, t0 # E :
- subq a0, 1, a0 # E : get our +1 for the return
-
- cmpbge zero, t0, t1 # E : t1 <- bitmask: bit i == 1 <==> i-th byte == 0
- subq a1, 7, t2 # E :
- subq a0, v0, t0 # E :
- bne t1, $found # U :
-
- addq t2, t0, t2 # E :
- addq a1, 1, a1 # E :
- nop # E :
- nop # E :
-
- .align 4
-$loop: ble t2, $limit # U :
- EX( ldq t0, 8(v0) ) # L :
- nop # E :
- nop # E :
-
- cmpbge zero, t0, t1 # E :
- subq t2, 8, t2 # E :
- addq v0, 8, v0 # E : addr += 8
- beq t1, $loop # U :
-
-$found: cttz t1, t2 # U0 :
- addq v0, t2, v0 # E :
- subq v0, a0, v0 # E :
- ret # L0 :
-
-$exception:
- nop
- nop
- nop
- ret
-
- .align 4 # currently redundant
-$limit:
- nop
- nop
- subq a1, t2, v0
- ret
-
- .end __strlen_user
View
91 arch/alpha/lib/strlen_user.S
@@ -1,91 +0,0 @@
-/*
- * arch/alpha/lib/strlen_user.S
- *
- * Return the length of the string including the NUL terminator
- * (strlen+1) or zero if an error occurred.
- *
- * In places where it is critical to limit the processing time,
- * and the data is not trusted, strnlen_user() should be used.
- * It will return a value greater than its second argument if
- * that limit would be exceeded. This implementation is allowed
- * to access memory beyond the limit, but will not cross a page
- * boundary when doing so.
- */
-
-#include <asm/regdef.h>
-
-
-/* Allow an exception for an insn; exit if we get one. */
-#define EX(x,y...) \
- 99: x,##y; \
- .section __ex_table,"a"; \
- .long 99b - .; \
- lda v0, $exception-99b(zero); \
- .previous
-
-
- .set noreorder
- .set noat
- .text
-
- .globl __strlen_user
- .ent __strlen_user
- .frame sp, 0, ra
-
- .align 3
-__strlen_user:
- ldah a1, 32767(zero) # do not use plain strlen_user() for strings
- # that might be almost 2 GB long; you should
- # be using strnlen_user() instead
-
- .globl __strnlen_user
-
- .align 3
-__strnlen_user:
- .prologue 0
-
- EX( ldq_u t0, 0(a0) ) # load first quadword (a0 may be misaligned)
- lda t1, -1(zero)
- insqh t1, a0, t1
- andnot a0, 7, v0
- or t1, t0, t0
- subq a0, 1, a0 # get our +1 for the return
- cmpbge zero, t0, t1 # t1 <- bitmask: bit i == 1 <==> i-th byte == 0
- subq a1, 7, t2
- subq a0, v0, t0
- bne t1, $found
-
- addq t2, t0, t2
- addq a1, 1, a1
-
- .align 3
-$loop: ble t2, $limit
- EX( ldq t0, 8(v0) )
- subq t2, 8, t2
- addq v0, 8, v0 # addr += 8
- cmpbge zero, t0, t1
- beq t1, $loop
-
-$found: negq t1, t2 # clear all but least set bit
- and t1, t2, t1
-
- and t1, 0xf0, t2 # binary search for that set bit
- and t1, 0xcc, t3
- and t1, 0xaa, t4
- cmovne t2, 4, t2
- cmovne t3, 2, t3
- cmovne t4, 1, t4
- addq t2, t3, t2
- addq v0, t4, v0
- addq v0, t2, v0
- nop # dual issue next two on ev4 and ev5
- subq v0, a0, v0
-$exception:
- ret
-
- .align 3 # currently redundant
-$limit:
- subq a1, t2, v0
- ret
-
- .end __strlen_user
View
339 arch/alpha/lib/strncpy_from_user.S
@@ -1,339 +0,0 @@
-/*
- * arch/alpha/lib/strncpy_from_user.S
- * Contributed by Richard Henderson (rth@tamu.edu)
- *
- * Just like strncpy except in the return value:
- *
- * -EFAULT if an exception occurs before the terminator is copied.
- * N if the buffer filled.
- *
- * Otherwise the length of the string is returned.
- */
-
-
-#include <asm/errno.h>
-#include <asm/regdef.h>
-
-
-/* Allow an exception for an insn; exit if we get one. */
-#define EX(x,y...) \
- 99: x,##y; \
- .section __ex_table,"a"; \
- .long 99b - .; \
- lda $31, $exception-99b($0); \
- .previous
-
-
- .set noat
- .set noreorder
- .text
-
- .globl __strncpy_from_user
- .ent __strncpy_from_user
- .frame $30, 0, $26
- .prologue 0
-
- .align 3
-$aligned:
- /* On entry to this basic block:
- t0 == the first destination word for masking back in
- t1 == the first source word. */
-
- /* Create the 1st output word and detect 0's in the 1st input word. */
- lda t2, -1 # e1 : build a mask against false zero
- mskqh t2, a1, t2 # e0 : detection in the src word
- mskqh t1, a1, t3 # e0 :
- ornot t1, t2, t2 # .. e1 :
- mskql t0, a1, t0 # e0 : assemble the first output word
- cmpbge zero, t2, t8 # .. e1 : bits set iff null found
- or t0, t3, t0 # e0 :
- beq a2, $a_eoc # .. e1 :
- bne t8, $a_eos # .. e1 :
-
- /* On entry to this basic block:
- t0 == a source word not containing a null. */
-
-$a_loop:
- stq_u t0, 0(a0) # e0 :
- addq a0, 8, a0 # .. e1 :
- EX( ldq_u t0, 0(a1) ) # e0 :
- addq a1, 8, a1 # .. e1 :
- subq a2, 1, a2 # e0 :
- cmpbge zero, t0, t8 # .. e1 (stall)
- beq a2, $a_eoc # e1 :
- beq t8, $a_loop # e1 :
-
- /* Take care of the final (partial) word store. At this point
- the end-of-count bit is set in t8 iff it applies.
-
- On entry to this basic block we have:
- t0 == the source word containing the null
- t8 == the cmpbge mask that found it. */
-
-$a_eos:
- negq t8, t12 # e0 : find low bit set
- and t8, t12, t12 # e1 (stall)
-
- /* For the sake of the cache, don't read a destination word
- if we're not going to need it. */
- and t12, 0x80, t6 # e0 :
- bne t6, 1f # .. e1 (zdb)
-
- /* We're doing a partial word store and so need to combine
- our source and original destination words. */
- ldq_u t1, 0(a0) # e0 :
- subq t12, 1, t6 # .. e1 :
- or t12, t6, t8 # e0 :
- unop #
- zapnot t0, t8, t0 # e0 : clear src bytes > null
- zap t1, t8, t1 # .. e1 : clear dst bytes <= null
- or t0, t1, t0 # e1 :
-
-1: stq_u t0, 0(a0)
- br $finish_up
-
- /* Add the end-of-count bit to the eos detection bitmask. */
-$a_eoc:
- or t10, t8, t8
- br $a_eos
-
- /*** The Function Entry Point ***/
- .align 3
-__strncpy_from_user:
- mov a0, v0 # save the string start
- beq a2, $zerolength
-
- /* Are source and destination co-aligned? */
- xor a0, a1, t1 # e0 :
- and a0, 7, t0 # .. e1 : find dest misalignment
- and t1, 7, t1 # e0 :
- addq a2, t0, a2 # .. e1 : bias count by dest misalignment
- subq a2, 1, a2 # e0 :
- and a2, 7, t2 # e1 :
- srl a2, 3, a2 # e0 : a2 = loop counter = (count - 1)/8
- addq zero, 1, t10 # .. e1 :
- sll t10, t2, t10 # e0 : t10 = bitmask of last count byte
- bne t1, $unaligned # .. e1 :
-
- /* We are co-aligned; take care of a partial first word. */
-
- EX( ldq_u t1, 0(a1) ) # e0 : load first src word
- addq a1, 8, a1 # .. e1 :
-
- beq t0, $aligned # avoid loading dest word if not needed
- ldq_u t0, 0(a0) # e0 :
- br $aligned # .. e1 :
-
-
-/* The source and destination are not co-aligned. Align the destination
- and cope. We have to be very careful about not reading too much and
- causing a SEGV. */
-
- .align 3
-$u_head:
- /* We know just enough now to be able to assemble the first
- full source word. We can still find a zero at the end of it
- that prevents us from outputting the whole thing.
-
- On entry to this basic block:
- t0 == the first dest word, unmasked
- t1 == the shifted low bits of the first source word
- t6 == bytemask that is -1 in dest word bytes */