linaro-dev October 2010

linaro-dev@lists.linaro.org

68 participants
90 discussions

by John Rigby

The following changes since commit b99670db3d6a43efe6d55ce92d7a227fb1ff41f7: LINARO: Linaro-2.6.35.1006.11 (2010-09-16 17:17:17 -0600) are available in the git repository at: git://git.linaro.org/ubuntu/linux-meta-linaro.git master John Rigby (1): LINARO: Linaro-2.6.35.1007.12 meta-source/debian/changelog | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-)

14 years, 2 months

[PM] 13/10/10 - Minutes for the Power Management WG weekly call

by Amit Kucheria

Hi everyone, The minutes of the weekly call can be found at: https://wiki.linaro.org/WorkingGroups/PowerManagement/Meetings/2010-10-13 Attendees: Linaro: Amit K, Vincent, Yong, Vishwa ARM: Srinivas Highlight: ARM common-code for cpu context save/restore Regards, Amit

14 years, 2 months

Cortex A9 vexpress MMC I/O problems.

by Harry Liebel

Hi. I have a Cortex A9 vexpress board and I've been trying some of the headless daily builds as described here : https://wiki.linaro.org/Platform/QA/TestCases/HeadlessVexpress. The instructions are based around the MMC card with uboot, kernel and rootfs all loaded via this interface. I've had mixed results. When the box completes the boot the basic systems seem to work ok (I can get an IP and poke the filesystem). It still takes several minutes to get to a prompt as mentioned on the wiki page. It happens quite often that the box does not get to a prompt at all. It fails to read the MMC properly. Below is two separate cases where reading the partition table fails. In the first case it finds one partition and in the second case it fails to find any partitions. The boot monitor has no problem reading uboot, kernel or initrd from the MMC when writing to internal FLASH. I've also tried a different SD card with similar results. Sometimes it works fine and other times it reports I/O errors. I've tried the daily builds for 6, 8 and 10 October. Is this a known issue? ----- mmc0: host does not support reading read-only switch. assuming write-enable. mmc0: new SD card at address 8fe4 mmcblk0: mmc0:8fe4 SD02G 1.84 GiB mmcblk0: Freeing init memory: 160K p1ding, please wait... p2 udev[497]: starting version 163 port 1 high speed Begin: Loading essential drivers ... done. Begin: Running /scripts/init-premount ... done. Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done. usb 1-1: new high speed USB device using isp1760 and address 2 port 1 high speed usb 1-1: New USB device found, idVendor=0471, idProduct=3526 usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 1-1: Product: ISP1520 usb 1-1: Manufacturer: Philips Semiconductors mmcblk0: retrying using single block read mmcblk0: error -5 transferring data, sector 0, nr 8, card status 0xb00 hub 1-1:1.0: USB hub found hub 1-1:1.0: 3 ports detected end_request: I/O error, dev mmcblk0, sector 0 Buffer I/O error on device mmcblk0, logical block 0 ----- mmc0: host does not support reading read-only switch. assuming write-enable. mmc0: new SD card at address 8fe4 mmcblk0: mmc0:8fe4 SD02G 1.84 GiB mmcblk0: TCP cubic registered NET: Registered protocol family 10 lo: Disabled Privacy Extensions NET: Registered protocol family 17 port 1 high speed VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 0 Registering SWP/SWPB emulation handler rtc-pl031 mb:rtc: setting system clock to 2010-10-11 10:49:28 UTC (1286794168) usb 1-1: new high speed USB device using isp1760 and address 2 Freeing init memory: 160K port 1 high speed mmcblk0: retrying using single block read Loading, please wait... usb 1-1: New USB device found, idVendor=0471, idProduct=3526 usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 udev[493]: starting version 163 Begin: Loading eusb 1-1: Product: ISP1520 mmcblk0: error -5 transferring data, sector 2, nr 6, card status 0x900 end_request: I/O error, dev mmcblk0, sector 2 ssential driversusb 1-1: Manufacturer: Philips Semiconductors ... done. Begin: Runnimmcblk0: error -5 transferring data, sector 3, nr 5, card status 0x900 ng /scripts/initend_request: I/O error, dev mmcblk0, sector 3 -premount ... done. Begin: Mounting root file system ... hub 1-1:1.0: USB hub found hub 1-1:1.0: 3 ports detected Begin: Running /scripts/local-tommcblk0: error -5 transferring data, sector 5, nr 3, card status 0xb00 p ... done. end_request: I/O error, dev mmcblk0, sector 5 unable to read partition table ----- Thanks, Harry -- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.

14 years, 2 months

linux-linaro pull request

by John Rigby

The following changes since commit d0bbdab2bb2c55c3dc6a4b3fd2128250dff99feb: LINARO: Linaro-2.6.35-1006.12 (2010-09-20 20:01:02 -0600) are available in the git repository at: git://git.linaro.org/ubuntu/linux-linaro.git linaro-2.6.35-1007.13 Al Viro (2): arm: fix really nasty sigreturn bug arm: fix really nasty sigreturn bug Alan Ott (1): HID: Set Report ID properly for Output reports on the Control endpoint. Alex Deucher (6): drm/radeon/kms: fix a regression on r7xx AGP due to the HDP flush fix drm/radeon/kms: force legacy pll algo for RV515 LVDS drm/radeon/kms: force legacy pll algo for RV620 LVDS drm/radeon/kms: properly set crtc high base on r7xx drm/radeon/kms/evergreen: fix gpu hangs in userspace accel code drm/radeon/kms/evergreen: fix backend setup Alexey Kuznetsov (1): tcp: Prevent overzealous packetization by SWS logic. Amit Shah (1): virtio: console: Prevent userspace from submitting NULL buffers Andrea Arcangeli (3): mm: fix swapin race condition mmap: call unlink_anon_vmas() in __split_vma() in case of error KVM: MMU: fix mmu notifier invalidate handler for huge spte Andreas Herrmann (1): hwmon: (k8temp) Differentiate between AM2 and ASB1 Andrew Morton (1): drivers/pci/intel-iommu.c: fix build with older gcc's Andy Gospodarek (1): bonding: correctly process non-linear skbs Andy Whitcroft (1): Revert "UBUNTU: SAUCE: Add support for Intellimouse Mode in ALPS touchpad on Dell E2 series Laptops" Anton Vorontsov (1): apm_power: Add missing break statement Arnaud Lacombe (1): kconfig: delay symbol direct dependency initialization Arnd Bergmann (1): /proc/vmcore: fix seeking Avi Kivity (3): KVM: Keep slot ID in memory slot structure KVM: Prevent internal slots from being COWed KVM: VMX: Fix host GDT.LIMIT corruption Axel Lin (1): hwmon: (ads7871) Fix ads7871_probe error paths Ben Hutchings (3): PCI: MSI: Remove unsafe and unnecessary hardware access PCI: MSI: Restore read_msi_msg_desc(); add get_cached_msi_msg_desc() Staging: rt2870sta: Add more device IDs from vendor drivers Benjamin Herrenschmidt (1): Revert "Input: appletouch - fix integer overflow issue" Brian Austin (1): ALSA: hda - Add errata initverb sequence for CS42xx codecs Brian Rogers (1): UBUNTU: SAUCE: ir-core: Fix null dereferences in the protocols sysfs interface Catalin Marinas (1): ARM: VExpress: Set bit 22 in the PL310 (cache controller) AuxCtlr register Chris Wilson (11): agp/intel: Promote warning about failure to setup flush to error. drm/i915/dp: Really try 5 times before giving up. drm/i915: Allocate the PCI resource for the MCHBAR drm/i915: Prevent double dpms on Revert "drm/i915: Allow LVDS on pipe A on gen4+" drm: Only decouple the old_fb from the crtc is we call mode_set* drm/i915,agp/intel: Add second set of PCI-IDs for B43 drm/i915: Ensure that the crtcinfo is populated during mode_fixup() drm/i915: Rephrase pwrite bounds checking to avoid any potential overflow drm/i915: Skip pread/pwrite if size to copy is 0. drm/i915: Sanity check pread/pwrite Chris Wright (1): tracing: t_start: reset FTRACE_ITER_HASH in case of seek/pread Christian Lamparter (1): p54: fix tx feedback status flag check Christoph Hellwig (3): direct-io: move aio_complete into ->end_io xfs: move aio completion after unwritten extent conversion swap: do not send discards as barriers Christoph Lameter (1): mm: page allocator: calculate a better estimate of NR_FREE_PAGES when memory is low and kswapd is awake Christopher James Halse Rogers (2): UBUNTU: SAUCE: Nouveau: Add quirk framework to disable acceleration UBUNTU: SAUCE: Nouveau: Disable acceleration on MacBook Pros Clemens Ladisch (3): ALSA: usb-audio: fix detection of vendor-specific device protocol settings ALSA: virtuoso: work around missing reset in the Xonar DS Windows driver ALSA: virtuoso: fix setting of Xonar DS line-in/mic-in controls Colin Cross (1): PM: Prevent waiting forever on asynchronous resume after failing suspend Craig Shelley (1): USB: CP210x Add new device ID Dan Carpenter (7): USB: ehci-ppc-of: problems in unwind sysfs: checking for NULL instead of ERR_PTR irda: off by one i915: return -EFAULT if copy_to_user fails i915_gem: return -EFAULT if copy_to_user fails Staging: vt6655: fix buffer overflow net/llc: make opt unsigned in llc_ui_setsockopt() Dan Rosenberg (9): USB: serial/mos*: prevent reading uninitialized stack memory drivers/net/usb/hso.c: prevent reading uninitialized memory drivers/net/cxgb3/cxgb3_main.c: prevent reading uninitialized stack memory drivers/net/eql.c: prevent reading uninitialized stack memory drivers/video/sis/sis_main.c: prevent reading uninitialized stack memory Prevent freeing uninitialized pointer in compat_do_readv_writev xfs: prevent reading uninitialized stack memory drivers/video/via/ioctl.c: prevent reading uninitialized stack memory Fix pktcdvd ioctl dev_minor range check Daniel J Blueman (2): ALSA: hda - Fix beep frequency on IDT 92HD73xx and 92HD71Bxx codecs Fix unprotected access to task credentials in waitid() Daniel Mack (1): ALSA: usb-audio: Assume first control interface is for audio Daniel Vetter (1): drm/i915: overlay on gen2 can't address above 1G Daniel Walker (1): ARM: 6398/1: add proc info for ARM11MPCore/Cortex-A9 from ARM Dave Chinner (3): xfs: fix untrusted inode number lookup xfs: ensure we mark all inodes in a freed cluster XFS_ISTALE writeback: write_cache_pages doesn't terminate at nr_to_write <= 0 Dave Ludlow (2): usb: serial: mos7840: Add USB ID to support the B&B Electronics USOPTL4-2P. usb: serial: mos7840: Add USB IDs to support more B&B USB/RS485 converters. David Henningsson (6): ALSA: HDA: Enable internal speaker on Dell M101z ALSA: hda - Add Sony VAIO quirk for ALC269 ALSA: HDA: Use model=auto for LG R510 ALSA: hda - Rename iMic to Int Mic on Lenovo NB0763 ALSA: hda - Add a new hp-laptop model for Conexant 5066, tested on HP G60 ALSA: HDA: Enable internal speaker on Dell M101z David Howells (4): KEYS: Fix RCU no-lock warning in keyctl_session_to_parent() KEYS: Fix bug in keyctl_session_to_parent() if parent has no session keyring KEYS: Fix RCU no-lock warning in keyctl_session_to_parent() KEYS: Fix bug in keyctl_session_to_parent() if parent has no session keyring David S. Miller (6): irda: Correctly clean up self->ias_obj on irda_bind() failure. bridge: Clear INET control block of SKBs passed into ip_fragment(). irda: Correctly clean up self->ias_obj on irda_bind() failure. net: RPS needs to depend upon USE_GENERIC_SMP_HELPERS tcp: Combat per-cpu skew in orphan tests. sparc64: Get rid of indirect p1275 PROM call buffer. Dmitry Torokhov (2): Input: i8042 - fix device removal on unload Input: i8042 - reset keyboard controller wehen resuming from S2R Eric Dumazet (5): gro: fix different skb headrooms rds: fix a leak of kernel memory tcp: fix three tcp sysctls tuning udp: add rehash on connect() l2tp: test for ethernet header in l2tp_eth_dev_recv() Eric Paris (1): inotify: send IN_UNMOUNT events Florian Westphal (1): netfilter: fix CONFIG_COMPAT support Frederic Weisbecker (1): perf: Initialize callchains roots's childen hits Gary King (1): bounce: call flush_dcache_page() after bounce_copy_vec() Gleb Natapov (1): KVM: x86: emulator: inc/dec can have lock prefix Greg Kroah-Hartman (2): Linux 2.6.35.5 Linux 2.6.35.6 Guennadi Liakhovetski (1): mmc: fix the use of kunmap_atomic() in tmio_mmc.h Guillem Jover (2): hwmon: (f75375s) Shift control mode to the correct bit position hwmon: (f75375s) Do not overwrite values read from registers H. Peter Anvin (2): x86-64, compat: Test %rax for the syscall number, not %eax compat: Make compat_alloc_user_space() incorporate the access_ok() Haiyang Zhang (2): staging: hv: Fix missing functions for net_device_ops staging: hv: Fixed the value of the 64bit-hole inside ring buffer Hank Janssen (3): staging: hv: Fixed bounce kmap problem by using correct index staging: hv: Increased storvsc ringbuffer and max_io_requests staging: hv: Fixed lockup problem with bounce_buffer scatter list Hans de Goede (1): virtio: console: Fix poll blocking even though there is data to read Hugh Dickins (3): swap: prevent reuse during hibernation swap: discard while swapping only if SWAP_FLAG_DISCARD mm: further fix swapin race condition Islam Amer (1): dell-wmi: Add support for eject key on Dell Studio 1555 Jan Kara (3): bdi: Initialize noop_backing_dev_info properly char: Mark /dev/zero and /dev/kmem as not capable of writeback aio: do not return ERESTARTSYS as a result of AIO Jan Sembera (1): binfmt_misc: fix binfmt_misc priority Jarek Poplawski (1): gro: Re-fix different skb headrooms Jason Detring (1): USB: cp210x: Add B&G H3000 link cable ID Jeff Layton (1): cifs: fix potential double put of TCP session reference Jeff Moyer (2): O_DIRECT: fix the splitting up of contiguous I/O aio: check for multiplication overflow in do_io_submit Jeremy Fitzhardinge (2): xen: handle events as edge-triggered xen: use percpu interrupts for IPIs and VIRQs Jerome Marchand (1): kernel/groups.c: fix integer overflow in groups_search Jesse Barnes (1): drm/i915: don't enable self-refresh on Ironlake Jianzhao Wang (1): net: blackhole route should always be recalculated Jiaying Zhang (1): ext4: move aio completion after unwritten extent conversion Joel Becker (1): ocfs2: Don't walk off the end of fast symlinks. Johannes Berg (3): mac80211: delete work timer wireless extensions: fix kernel heap content leak wireless extensions: fix kernel heap content leak John Johansen (3): Revert "UBUNTU: SAUCE: AppArmor: allow newer tools to load policy on older kernels" UBUNTU: SAUCE: AppArmor: allow newer tools to load policy on older kernels UBUNTU: SAUCE: Return correct error code for mediated network connections John Rigby (6): LINARO: Start new release Merge ubuntu-maverick Ubuntu-2.6.35-22.34 Merge remote branch 'remotes/linux-linaro-2.6.35/master' LINARO: Bump ABI LINARO: update configs LINARO: Linaro-2.6.35-1007.13 John W. Linville (1): ath5k: check return value of ieee80211_get_tx_rate Jorge Boncompte [DTI2] (1): minix: fix regression in minix_mkdir() KAMEZAWA Hiroyuki (1): memory hotplug: fix next block calculation in is_removable KOSAKI Motohiro (1): tcp: select(writefds) don't hang up when a peer close connection Leann Ogasawara (4): UBUNTU: Start new release UBUNTU: Ubuntu-2.6.35-22.33 UBUNTU: Start new release UBUNTU: Ubuntu-2.6.35-22.34 Len Brown (1): intel_idle: PCI quirk to prevent Lenovo Ideapad s10-3 boot hang Li Zefan (1): tracing: Fix a race in function profile Lin Ming (1): perf, x86, Pentium4: Clear the P4_CCCR_FORCE_OVF flag Luca Barbieri (1): x86, asm: Use a lower case name for the end macro in atomic64_386_32.S Luis R. Rodriguez (2): ath9k_hw: Fix EEPROM uncompress block reading on AR9003 ath9k_hw: fix parsing of HT40 5 GHz CTLs Luke Lowrey (1): USB: ftdi_sio: Added custom PIDs for ChamSys products Marcin Slusarz (1): drm/nv50: initialize ramht_refs list for faked 0 channel Mark Lord (2): libata-sff: remove harmful BUG_ON from ata_bmdma_qc_issue sata_mv: fix broken DSM/TRIM support (v2) Mathias Nyman (1): usb: musb_debugfs: don't use the struct file private_data field with seq_files Mathieu J. Poirier (1): UBUNTU: SAUCE: Adding vdd_sdi regulator supply to OMAP3EVM Matt Helsley (1): hw breakpoints: Fix pid namespace bug Maurus Cuelenaere (1): ARM: OMAP3: Add S-Video output to IGEPv2 board Maxim Levitsky (1): mmc: fix all hangs related to mmc/sd card insert/removal during suspend/resume Maxim Osipov (1): USB: Fix kernel oops with g_ether and Windows Mel Gorman (2): mm: page allocator: drain per-cpu lists after direct reclaim allocation fails mm: page allocator: update free page counters after pages are placed on the free list Menyhart Zoltan (1): statfs() gives ESTALE error Michael Cree (1): alpha: Fix printk format errors Miklos Szeredi (1): fuse: flush background queue on connection close Mimi Zohar (1): ima: always maintain counters Minchan Kim (2): mm: compaction: handle active and inactive fairly in too_many_isolated vmscan: check all_unreclaimable in direct reclaim path Morten H. Larsen (1): Fix call to replaced SuperIO functions Nicolas Ferre (1): AT91: change dma resource index Nicolas Pitre (11): ARM: add a vma entry for the user accessible vector page ARM: plug a race with the alignment trap handler ARM: SECCOMP support Merge remote branch 'willd/for-linaro-stable' into linaro-2.6.35 Merge commit 'v2.6.35.5' into linaro-2.6.35 Merge commit 'v2.6.35.6' into linaro-2.6.35 Merge remote branch 'catalin/stable-2.6.35' into linaro-2.6.35 ARM: bring SECCOMP behavior in sync with the version in mainline ARM: do not define VMALLOC_END relative to PAGE_OFFSET ARM: implement CONFIG_STRICT_DEVMEM by disabling access to RAM via /dev/mem Merge branch 'dynamic-ftrace' of git://kernel.ubuntu.com/mpoirier/linux-linaro-2.6.35 into linaro-2.6.35 Patrick Simmons (1): oprofile: Add Support for Intel CPU Family 6 / Model 22 (Intel Celeron 540) Paul E. McKenney (1): pid: make setpgid() system call use RCU read-side critical section Paul Mackerras (1): powerpc/perf_event: Reduce latency of calling perf_event_do_pending Peter Oberparleiter (1): gcov: fix null-pointer dereference for certain module types Peter Zijlstra (1): x86, tsc: Fix a preemption leak in restore_sched_clock_state() Petr Tesarik (1): IA64: Optimize ticket spinlocks in fsys_rt_sigprocmask Philippe Corbes (1): USB: cdc-acm: Add pseudo modem without AT command capabilities Rabin Vincent (8): ARM: 6312/1: ftrace: allow building without frame pointers ARM: 6314/1: ftrace: allow build without frame pointers on ARM ARM: 6315/1: ftrace: add ENDPROC annotations ARM: 6316/1: ftrace: add Thumb-2 support ARM: 6317/1: ftrace: pass KBUILD_CFLAGS to record_mcount.pl ARM: 6318/1: ftrace: fix and update dynamic ftrace ARM: 6319/1: ftrace: add Thumb-2 support to dynamic ftrace ARM: 6320/1: ftrace: enable dynamic ftrace Rafael J. Wysocki (1): PM / Hibernate: Avoid hitting OOM during preallocation of memory Ricardo Salveti de Araujo (1): ARM: OMAP3: Adding vdd_sdi regulator supply to IGEPv2 board Robert Richter (3): oprofile: fix crash when accessing freed task structs oprofile, x86: fix init_sysfs error handling oprofile, x86: fix init_sysfs() function stub Roland McGrath (1): x86-64, compat: Retruncate rax after ia32 syscall entry tracing Russell King (1): ARM: prevent multiple syscall restarts Ryan Kuester (1): SCSI: mptsas: fix hangs caused by ATA pass-through Simon Arlott (1): USB: cxacru: Use a bulk/int URB to access the command endpoint Sonic Zhang (1): serial: bfin_sport_uart: restore transmit frame sync fix Stanislaw Gruszka (1): sched: Fix user time incorrectly accounted as system time on 32-bit Stefan Bader (1): Fix out-of-bounds reading in sctp_asoc_get_hmac() Stephen Warren (1): ALSA: hda - patch_nvhdmi.c: Add missing codec IDs, unify names Steve Wise (1): RDMA/cxgb3: Don't exceed the max HW CQ depth Steven Rostedt (1): tracing: Do not allow llseek to set_ftrace_filter Steven Whitehouse (1): GFS2: gfs2_logd should be using interruptible waits Sunil Mushran (1): ocfs2: Fix incorrect checksum validation error Suresh Siddha (1): x86, tsc, sched: Recompute cyc2ns_offset's during resume from sleep states Takashi Iwai (8): ALSA: hda - Handle missing NID 0x1b on ALC259 codec ALSA: hda - Handle pin NID 0x1a on ALC259/269 ALSA: seq/oss - Fix double-free at error path of snd_seq_oss_open() ALSA: usb - Release capture substream URBs properly ALSA: hda - Add quirk for Lenovo T400s ALSA: hda - Fix wrong HP pin detection in snd_hda_parse_pin_def_config() hp_accel: add quirks for HP ProBook 532x and HP Mini 5102 ALSA: seq/oss - Fix double-free at error path of snd_seq_oss_open() Tejun Heo (5): pata_cmd64x: revert commit d62f5576 libata: skip EH autopsy and recovery during suspend libata,pata_via: revert ata_wait_idle() removal from ata_sff/via_tf_load() ahci: fix hang on failed softreset percpu: fix pcpu_last_unit_cpu Tetsuo Handa (1): UNIX: Do not loop forever at unix_autobind(). Thadeu Lima de Souza Cascardo (1): usb: allow drivers to use allocated bandwidth until unbound Thomas Gleixner (1): x86: hpet: Work around hardware stupidity Thomas Renninger (1): x86 platform drivers: hp-wmi Reorder event id processing Toby Gray (2): USB: cdc-acm: Adding second ACM channel support for various Nokia and one Samsung phones USB: cdc-acm: Fixing crash when ACM probing interfaces with no endpoint descriptors. Tony Lindgren (1): ARM: Fix HWCAP_TLS flag for ARM11MPCore/Cortex-A9 Tony Luck (2): IA64: fix siglock guard page for stacks that grow upwards Trond Myklebust (2): NFS: Fix a typo in nfs_sockaddr_match_ipaddr6 SUNRPC: Fix race corrupting rpc upcall Uwe Kleine-König (1): mmc: build fix: mmc_pm_notify is only available with CONFIG_PM=y Vivek Natarajan (1): ath9k_htc: Fix disconnect issue in HT40 mode. Vlad Yasevich (1): sctp: Do not reset the packet during sctp_packet_config(). Vladimir Zapolskiy (1): rtc: s3c: balance state changes of wakeup flag Will Deacon (18): fixup! ARM: Correct the cpu_architecture() function for ARMv7 fixup! ARM: Implement phys_mem_access_prot() to avoid attributes aliasing mm: fix typo in mm.h when NODE_NOT_IN_PAGE_FLAGS ARM: vexpress: set RAM latencies to 1 cycle for PL310 on ct-ca9x4 tile ARM: vexpress: set RAM latencies to 1 cycle for PL310 on ct-ca9x4 tile ARM: 6387/1: errata: check primary part ID in proc-v7.S ARM: 6388/1: errata: DMB operation may be faulty ARM: 6389/1: errata: incorrect hazard handling in the SCU may lead to data corruption oprofile: don't call arch exit code from init code on failure ARM: oprofile: fix and simplify init/exit functions mm: fix typo in mm.h when NODE_NOT_IN_PAGE_FLAGS ARM: kprobes-decode: add support for MOVW instruction ARM: vexpress: set RAM latencies to 1 cycle for PL310 on ct-ca9x4 tile ARM: kprobes-decode: add support for MOVW instruction ARM: errata: check primary part ID in proc-v7.S ARM: errata: DMB operation may be faulty ARM: errata: incorrect hazard handling in the SCU may lead to data corruption ARM: errata: faulty hazard checking in the Store Buffer may lead to data corruption Xiao Guangrong (1): KVM: MMU: fix direct sp's access corrupted Yong Wang (1): hwmon: (emc1403) Remove unnecessary hwmon_device_unregister Yusuke Goda (1): tmio_mmc: don't clear unhandled pending interrupts Zhenyu Wang (4): drm/i915: Enable MI_FLUSH on Sandybridge intel_agp, drm/i915: Add all sandybridge graphics devices support agp/intel: fix physical address mask bits for sandybridge agp/intel: fix dma mask bits on sandybridge Makefile | 9 +- arch/alpha/kernel/err_marvel.c | 6 +- arch/alpha/kernel/proto.h | 3 - arch/alpha/kernel/sys_cabriolet.c | 19 +- arch/alpha/kernel/sys_takara.c | 11 +- arch/arm/Kconfig | 42 + arch/arm/Kconfig.debug | 19 + arch/arm/include/asm/ftrace.h | 20 +- arch/arm/include/asm/io.h | 1 + arch/arm/include/asm/pgtable.h | 1 + arch/arm/kernel/armksyms.c | 2 + arch/arm/kernel/entry-common.S | 82 +- arch/arm/kernel/ftrace.c | 188 +- arch/arm/kernel/kprobes-decode.c | 7 +- arch/arm/kernel/setup.c | 2 +- arch/arm/mach-aaec2000/include/mach/vmalloc.h | 2 +- arch/arm/mach-at91/at91sam9g45_devices.c | 2 +- arch/arm/mach-bcmring/include/mach/vmalloc.h | 2 +- arch/arm/mach-clps711x/include/mach/vmalloc.h | 2 +- arch/arm/mach-ebsa110/include/mach/vmalloc.h | 2 +- arch/arm/mach-footbridge/include/mach/vmalloc.h | 2 +- arch/arm/mach-h720x/include/mach/vmalloc.h | 2 +- arch/arm/mach-integrator/include/mach/vmalloc.h | 2 +- arch/arm/mach-msm/include/mach/vmalloc.h | 2 +- arch/arm/mach-netx/include/mach/vmalloc.h | 2 +- arch/arm/mach-omap1/include/mach/vmalloc.h | 2 +- arch/arm/mach-omap2/board-igep0020.c | 42 +- arch/arm/mach-omap2/board-omap3evm.c | 10 +- arch/arm/mach-omap2/include/mach/vmalloc.h | 2 +- arch/arm/mach-pnx4008/include/mach/vmalloc.h | 2 +- arch/arm/mach-rpc/include/mach/vmalloc.h | 2 +- arch/arm/mach-shark/include/mach/vmalloc.h | 2 +- arch/arm/mach-versatile/include/mach/vmalloc.h | 2 +- arch/arm/mm/mmap.c | 22 + arch/arm/mm/proc-v7.S | 70 +- arch/ia64/kernel/fsys.S | 30 +- arch/ia64/kernel/msi_ia64.c | 2 +- arch/ia64/sn/kernel/msi_sn.c | 2 +- arch/powerpc/kernel/time.c | 23 +- arch/sparc/include/asm/oplib_64.h | 27 +- arch/sparc/prom/cif.S | 16 +- arch/sparc/prom/console_64.c | 48 +- arch/sparc/prom/devops_64.c | 36 +- arch/sparc/prom/misc_64.c | 314 +- arch/sparc/prom/p1275.c | 102 +- arch/sparc/prom/tree_64.c | 210 +- arch/x86/include/asm/hpet.h | 1 - arch/x86/include/asm/tsc.h | 2 + arch/x86/kernel/apic/io_apic.c | 2 +- arch/x86/kernel/cpu/perf_event_p4.c | 2 + arch/x86/kernel/early-quirks.c | 18 - arch/x86/kernel/hpet.c | 31 +- arch/x86/kernel/tsc.c | 38 + arch/x86/kvm/emulate.c | 4 +- arch/x86/kvm/mmu.c | 8 +- arch/x86/kvm/paging_tmpl.h | 28 +- arch/x86/kvm/vmx.c | 4 + arch/x86/kvm/x86.c | 7 +- arch/x86/lib/atomic64_386_32.S | 38 +- arch/x86/oprofile/nmi_int.c | 26 +- arch/x86/power/cpu.c | 2 + .../abi/{2.6.35-1006.11 => 2.6.35-1006.12}/abiname | 0 .../armel/linaro-mx51 | 0 .../armel/linaro-mx51.modules | 0 .../armel/linaro-omap | 0 .../armel/linaro-omap.modules | 0 .../armel/linaro-vexpress | 0 .../armel/linaro-vexpress.modules | 0 debian.linaro/changelog | 66 + debian.linaro/config/config.common.ubuntu | 6 + debian.master/abi/2.6.35-21.31/abiname | 1 - debian.master/abi/2.6.35-21.31/amd64/generic |11144 ------------------- debian.master/abi/2.6.35-21.31/amd64/server |11154 ------------------- debian.master/abi/2.6.35-21.31/amd64/virtual |11154 ------------------- .../abi/2.6.35-21.31/amd64/virtual.modules | 2837 ----- debian.master/abi/2.6.35-21.31/armel/omap | 8278 -------------- debian.master/abi/2.6.35-21.31/armel/versatile | 9027 ---------------- debian.master/abi/2.6.35-21.31/i386/generic |11212 ------------------- debian.master/abi/2.6.35-21.31/i386/generic-pae |11277 -------------------- debian.master/abi/2.6.35-21.31/i386/virtual |11277 -------------------- .../abi/2.6.35-21.31/i386/virtual.modules | 3070 ------ debian.master/abi/2.6.35-21.31/powerpc/powerpc |10211 ------------------ debian.master/abi/2.6.35-21.31/powerpc/powerpc-smp |10221 ------------------ .../abi/2.6.35-21.31/powerpc/powerpc64-smp |10510 ------------------ debian.master/abi/2.6.35-22.33/abiname | 1 + debian.master/abi/2.6.35-22.33/amd64/generic |11145 +++++++++++++++++++ .../amd64/generic.modules | 0 debian.master/abi/2.6.35-22.33/amd64/server |11155 +++++++++++++++++++ .../amd64/server.modules | 0 debian.master/abi/2.6.35-22.33/amd64/virtual |11155 +++++++++++++++++++ .../abi/2.6.35-22.33/amd64/virtual.modules | 494 + debian.master/abi/2.6.35-22.33/armel/omap | 8278 ++++++++++++++ .../armel/omap.modules | 0 debian.master/abi/2.6.35-22.33/armel/versatile | 9027 ++++++++++++++++ .../armel/versatile.modules | 0 debian.master/abi/2.6.35-22.33/i386/generic |11212 +++++++++++++++++++ debian.master/abi/2.6.35-22.33/i386/generic-pae |11277 ++++++++++++++++++++ .../i386/generic-pae.modules | 0 .../i386/generic.modules | 0 debian.master/abi/2.6.35-22.33/i386/virtual |11277 ++++++++++++++++++++ .../abi/2.6.35-22.33/i386/virtual.modules | 492 + debian.master/abi/2.6.35-22.33/powerpc/powerpc |10211 ++++++++++++++++++ debian.master/abi/2.6.35-22.33/powerpc/powerpc-smp |10221 ++++++++++++++++++ .../powerpc/powerpc-smp.modules | 0 .../powerpc/powerpc.modules | 0 .../abi/2.6.35-22.33/powerpc/powerpc64-smp |10511 ++++++++++++++++++ .../powerpc/powerpc64-smp.modules | 0 debian.master/changelog | 76 + drivers/ata/libahci.c | 2 +- drivers/ata/libata-core.c | 14 +- drivers/ata/libata-eh.c | 4 + drivers/ata/libata-sff.c | 7 +- drivers/ata/pata_cmd64x.c | 6 - drivers/ata/pata_via.c | 2 + drivers/ata/sata_mv.c | 44 +- drivers/base/power/main.c | 1 + drivers/block/pktcdvd.c | 2 +- drivers/char/agp/intel-agp.c | 25 +- drivers/char/agp/intel-agp.h | 2 + drivers/char/agp/intel-gtt.c | 12 +- drivers/char/mem.c | 3 +- drivers/char/virtio_console.c | 6 +- drivers/gpu/drm/drm_crtc_helper.c | 4 +- drivers/gpu/drm/i915/i915_dma.c | 36 +- drivers/gpu/drm/i915/i915_drv.c | 1 + drivers/gpu/drm/i915/i915_gem.c | 47 +- drivers/gpu/drm/i915/i915_reg.h | 1 + drivers/gpu/drm/i915/intel_display.c | 13 +- drivers/gpu/drm/i915/intel_dp.c | 58 +- drivers/gpu/drm/i915/intel_lvds.c | 2 - drivers/gpu/drm/i915/intel_ringbuffer.c | 8 +- drivers/gpu/drm/nouveau/nouveau_drv.c | 2 +- drivers/gpu/drm/nouveau/nouveau_state.c | 21 + drivers/gpu/drm/nouveau/nv50_instmem.c | 2 + drivers/gpu/drm/radeon/atombios_crtc.c | 23 +- drivers/gpu/drm/radeon/evergreen.c | 66 +- drivers/gpu/drm/radeon/r600.c | 7 +- drivers/gpu/drm/radeon/radeon.h | 6 + drivers/gpu/drm/radeon/rv770.c | 52 + drivers/hid/usbhid/hid-core.c | 3 +- drivers/hwmon/ads7871.c | 38 +- drivers/hwmon/emc1403.c | 1 - drivers/hwmon/f75375s.c | 6 +- drivers/hwmon/hp_accel.c | 2 + drivers/hwmon/k8temp.c | 35 +- drivers/infiniband/hw/cxgb3/cxio_hal.h | 2 +- drivers/input/mouse/alps.c | 81 - drivers/input/mouse/alps.h | 5 - drivers/input/mouse/appletouch.c | 6 +- drivers/input/mouse/psmouse-base.c | 3 +- drivers/input/serio/i8042.c | 2 +- drivers/media/IR/ir-sysfs.c | 12 +- drivers/message/fusion/mptscsih.c | 2 + drivers/mmc/host/tmio_mmc.c | 7 +- drivers/mmc/host/tmio_mmc.h | 13 +- drivers/net/bonding/bond_3ad.c | 3 + drivers/net/bonding/bond_alb.c | 3 + drivers/net/cxgb3/cxgb3_main.c | 2 + drivers/net/eql.c | 2 + drivers/net/usb/hso.c | 2 + drivers/net/wireless/ath/ath5k/base.c | 4 + drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | 2 +- drivers/net/wireless/ath/ath9k/eeprom.h | 2 +- drivers/net/wireless/ath/ath9k/htc_drv_main.c | 3 +- drivers/net/wireless/ath/regd.h | 1 - drivers/net/wireless/p54/txrx.c | 2 +- drivers/oprofile/buffer_sync.c | 27 +- drivers/oprofile/cpu_buffer.c | 2 - drivers/pci/intel-iommu.c | 90 +- drivers/pci/msi.c | 27 +- drivers/pci/quirks.c | 20 + drivers/platform/x86/hp-wmi.c | 51 +- drivers/power/apm_power.c | 1 + drivers/rtc/rtc-s3c.c | 13 +- drivers/serial/bfin_sport_uart.c | 2 +- drivers/staging/hv/netvsc_drv.c | 3 + drivers/staging/hv/ring_buffer.c | 3 +- drivers/staging/hv/storvsc_api.h | 4 +- drivers/staging/hv/storvsc_drv.c | 11 +- drivers/staging/rt2860/usb_main_dev.c | 41 +- drivers/staging/vt6655/wpactl.c | 11 +- drivers/usb/atm/cxacru.c | 24 +- drivers/usb/class/cdc-acm.c | 23 +- drivers/usb/core/message.c | 22 +- drivers/usb/gadget/rndis.c | 10 +- drivers/usb/host/ehci-ppc-of.c | 12 +- drivers/usb/musb/musb_debugfs.c | 5 +- drivers/usb/serial/cp210x.c | 10 +- drivers/usb/serial/ftdi_sio.c | 8 + drivers/usb/serial/ftdi_sio_ids.h | 12 + drivers/usb/serial/mos7720.c | 3 + drivers/usb/serial/mos7840.c | 35 +- drivers/video/sis/sis_main.c | 3 + drivers/video/via/ioctl.c | 2 + drivers/xen/events.c | 21 +- fs/aio.c | 13 +- fs/binfmt_misc.c | 2 +- fs/char_dev.c | 4 +- fs/cifs/connect.c | 6 +- fs/compat.c | 2 +- fs/direct-io.c | 30 +- fs/ext4/ext4.h | 4 +- fs/ext4/inode.c | 17 +- fs/fuse/dev.c | 16 +- fs/gfs2/log.c | 2 +- fs/minix/namei.c | 2 +- fs/nfs/client.c | 2 +- fs/nfs/super.c | 10 +- fs/notify/inotify/inotify_user.c | 7 +- fs/ocfs2/aops.c | 7 +- fs/ocfs2/inode.c | 6 +- fs/ocfs2/symlink.c | 2 +- fs/proc/vmcore.c | 2 +- fs/sysfs/file.c | 2 +- fs/xfs/linux-2.6/xfs_aops.c | 24 +- fs/xfs/linux-2.6/xfs_aops.h | 2 + fs/xfs/linux-2.6/xfs_ioctl.c | 2 + fs/xfs/xfs_ialloc.c | 16 +- fs/xfs/xfs_inode.c | 49 +- include/linux/fs.h | 3 +- include/linux/ksm.h | 20 +- include/linux/kvm_host.h | 1 + include/linux/libata.h | 1 + include/linux/mm.h | 12 +- include/linux/mmzone.h | 13 + include/linux/msi.h | 2 + include/linux/swap.h | 3 +- include/linux/vmstat.h | 22 + include/net/sock.h | 1 + include/net/tcp.h | 36 +- include/net/udp.h | 1 + kernel/exit.c | 5 +- kernel/gcov/fs.c | 244 +- kernel/groups.c | 5 +- kernel/hw_breakpoint.c | 3 +- kernel/power/snapshot.c | 85 +- kernel/sched.c | 8 +- kernel/sys.c | 2 + kernel/trace/Kconfig | 2 +- kernel/trace/ftrace.c | 19 +- mm/backing-dev.c | 2 + mm/compaction.c | 7 +- mm/ksm.c | 3 - mm/memory.c | 56 +- mm/memory_hotplug.c | 16 +- mm/mmap.c | 4 +- mm/mmzone.c | 21 + mm/page-writeback.c | 26 +- mm/page_alloc.c | 33 +- mm/percpu.c | 2 +- mm/swapfile.c | 35 +- mm/vmscan.c | 43 +- mm/vmstat.c | 15 +- net/Kconfig | 2 +- net/bridge/br_netfilter.c | 6 +- net/core/skbuff.c | 6 +- net/ipv4/datagram.c | 5 +- net/ipv4/netfilter/arp_tables.c | 3 + net/ipv4/netfilter/ip_tables.c | 3 + net/ipv4/route.c | 7 +- net/ipv4/tcp.c | 32 +- net/ipv4/tcp_timer.c | 8 +- net/ipv4/udp.c | 44 + net/ipv6/datagram.c | 7 +- net/ipv6/netfilter/ip6_tables.c | 3 + net/ipv6/udp.c | 10 + net/irda/af_irda.c | 4 +- net/irda/irlan/irlan_common.c | 2 +- net/l2tp/l2tp_eth.c | 2 +- net/llc/af_llc.c | 3 +- net/mac80211/main.c | 6 + net/rds/recv.c | 2 +- net/sctp/auth.c | 8 +- net/sctp/output.c | 1 - net/sunrpc/auth_gss/auth_gss.c | 9 +- net/sunrpc/rpc_pipe.c | 6 +- net/unix/af_unix.c | 15 +- net/wireless/wext-compat.c | 3 + net/wireless/wext-core.c | 16 + scripts/Makefile.build | 3 +- scripts/kconfig/expr.h | 1 - scripts/kconfig/menu.c | 7 +- scripts/recordmcount.pl | 2 + security/apparmor/net.c | 1 + security/apparmor/policy_unpack.c | 11 + security/integrity/ima/ima.h | 1 + security/integrity/ima/ima_iint.c | 4 +- security/integrity/ima/ima_main.c | 8 +- security/keys/keyctl.c | 6 +- sound/core/seq/oss/seq_oss_init.c | 9 +- sound/pci/hda/hda_codec.c | 2 +- sound/pci/hda/patch_cirrus.c | 50 + sound/pci/hda/patch_conexant.c | 1 + sound/pci/hda/patch_nvhdmi.c | 61 +- sound/pci/hda/patch_realtek.c | 11 + sound/pci/oxygen/oxygen.h | 1 + sound/pci/oxygen/oxygen_lib.c | 21 +- sound/pci/oxygen/virtuoso.c | 1 + sound/pci/oxygen/xonar_wm87x6.c | 22 +- sound/usb/card.c | 19 +- sound/usb/clock.c | 3 +- sound/usb/endpoint.c | 11 +- sound/usb/format.c | 14 +- sound/usb/mixer.c | 10 +- sound/usb/pcm.c | 3 +- tools/perf/util/callchain.h | 1 + virt/kvm/kvm_main.c | 1 + 307 files changed, 119621 insertions(+), 122662 deletions(-) rename debian.linaro/abi/{2.6.35-1006.11 => 2.6.35-1006.12}/abiname (100%) rename debian.linaro/abi/{2.6.35-1006.11 => 2.6.35-1006.12}/armel/linaro-mx51 (100%) rename debian.linaro/abi/{2.6.35-1006.11 => 2.6.35-1006.12}/armel/linaro-mx51.modules (100%) rename debian.linaro/abi/{2.6.35-1006.11 => 2.6.35-1006.12}/armel/linaro-omap (100%) rename debian.linaro/abi/{2.6.35-1006.11 => 2.6.35-1006.12}/armel/linaro-omap.modules (100%) rename debian.linaro/abi/{2.6.35-1006.11 => 2.6.35-1006.12}/armel/linaro-vexpress (100%) rename debian.linaro/abi/{2.6.35-1006.11 => 2.6.35-1006.12}/armel/linaro-vexpress.modules (100%) delete mode 100644 debian.master/abi/2.6.35-21.31/abiname delete mode 100644 debian.master/abi/2.6.35-21.31/amd64/generic delete mode 100644 debian.master/abi/2.6.35-21.31/amd64/server delete mode 100644 debian.master/abi/2.6.35-21.31/amd64/virtual delete mode 100644 debian.master/abi/2.6.35-21.31/amd64/virtual.modules delete mode 100644 debian.master/abi/2.6.35-21.31/armel/omap delete mode 100644 debian.master/abi/2.6.35-21.31/armel/versatile delete mode 100644 debian.master/abi/2.6.35-21.31/i386/generic delete mode 100644 debian.master/abi/2.6.35-21.31/i386/generic-pae delete mode 100644 debian.master/abi/2.6.35-21.31/i386/virtual delete mode 100644 debian.master/abi/2.6.35-21.31/i386/virtual.modules delete mode 100644 debian.master/abi/2.6.35-21.31/powerpc/powerpc delete mode 100644 debian.master/abi/2.6.35-21.31/powerpc/powerpc-smp delete mode 100644 debian.master/abi/2.6.35-21.31/powerpc/powerpc64-smp create mode 100644 debian.master/abi/2.6.35-22.33/abiname create mode 100644 debian.master/abi/2.6.35-22.33/amd64/generic rename debian.master/abi/{2.6.35-21.31 => 2.6.35-22.33}/amd64/generic.modules (100%) create mode 100644 debian.master/abi/2.6.35-22.33/amd64/server rename debian.master/abi/{2.6.35-21.31 => 2.6.35-22.33}/amd64/server.modules (100%) create mode 100644 debian.master/abi/2.6.35-22.33/amd64/virtual create mode 100644 debian.master/abi/2.6.35-22.33/amd64/virtual.modules create mode 100644 debian.master/abi/2.6.35-22.33/armel/omap rename debian.master/abi/{2.6.35-21.31 => 2.6.35-22.33}/armel/omap.modules (100%) create mode 100644 debian.master/abi/2.6.35-22.33/armel/versatile rename debian.master/abi/{2.6.35-21.31 => 2.6.35-22.33}/armel/versatile.modules (100%) create mode 100644 debian.master/abi/2.6.35-22.33/i386/generic create mode 100644 debian.master/abi/2.6.35-22.33/i386/generic-pae rename debian.master/abi/{2.6.35-21.31 => 2.6.35-22.33}/i386/generic-pae.modules (100%) rename debian.master/abi/{2.6.35-21.31 => 2.6.35-22.33}/i386/generic.modules (100%) create mode 100644 debian.master/abi/2.6.35-22.33/i386/virtual create mode 100644 debian.master/abi/2.6.35-22.33/i386/virtual.modules create mode 100644 debian.master/abi/2.6.35-22.33/powerpc/powerpc create mode 100644 debian.master/abi/2.6.35-22.33/powerpc/powerpc-smp rename debian.master/abi/{2.6.35-21.31 => 2.6.35-22.33}/powerpc/powerpc-smp.modules (100%) rename debian.master/abi/{2.6.35-21.31 => 2.6.35-22.33}/powerpc/powerpc.modules (100%) create mode 100644 debian.master/abi/2.6.35-22.33/powerpc/powerpc64-smp rename debian.master/abi/{2.6.35-21.31 => 2.6.35-22.33}/powerpc/powerpc64-smp.modules (100%)

14 years, 2 months

Visualizing reads, writes and alignment

by Amit Kucheria

Should be of general interest to Linaro.. ----- Forwarded message from Matt Zimmerman <mdz(a)canonical.com> ----- Date: Tue, 12 Oct 2010 09:48:42 +0100 From: Matt Zimmerman <mdz(a)canonical.com> To: canonical-tech(a)lists.launchpad.net Subject: [Canonical-tech] Visualizing reads, writes and alignment User-Agent: Mutt/1.5.20 (2009-06-14) http://rwmj.wordpress.com/2010/10/05/visualizing-reads-writes-and-alignment/ This looks like pretty cool stuff. Using a patch to qemu, these tools generate a visualization of I/O showing the location and alignment of reads and writes. -- - mdz ----- End forwarded message ----- -- ---------------------------------------------------------------------- Amit Kucheria, Kernel Engineer ----------------------------------------------------------------------

14 years, 2 months

Notes & Actions: Linaro Graphics Working Group - Oct 11, 2010

by Alexandros Frantzis

Hi, notes and actions from our Monday graphics cross-vendor call are available on the wiki: + https://wiki.linaro.org/WorkingGroups/Middleware/Graphics/Notes/2010-10-11 Details about when and where of this meeting can be found here: + https://wiki.linaro.org/WorkingGroups/Middleware/Graphics#Weekly%20Public%2… Thanks, -- - Alexandros

14 years, 2 months

Re: [PATCH] cpufreq, cpuidle & clock for MOP500 hrefp

by Amit Kucheria

On 10 Oct 11, Vincent Guittot wrote: > On 11 October 2010 10:58, Amit Kucheria <amit.kucheria(a)linaro.org> wrote: > > On 10 Oct 11, Vincent Guittot wrote: > >> Hi, > >> > >> Please find attached 3 patches for : > >> - enabling cpuidle feature on MOP500 hrefp > >> - making cpufreq stat available for powertop > >> - adding debugfs clock tree for powerdebug > >> > >> These patches have been tested on the latest > >> //git.linaro.org/bsp/st-ericsson/linux-2.6.34-ux500 > >> > >> Vincent > > > > Thanks Vincent. So with these patches, the ux500 platform can be used with > > cpufreq and cpuidle and works correctly with the powertop and powerdebug tools > > we have? > > > > Yes it is. > > > Is the same true for the ux500 code in mainline? Does it support cpufreq, > > cpuidle? > > > > Not yet. it's on going > > > Just a brief comment below, regarding the patch. > > > >> From 5bd1f1a5ecc7ce6d812215a474869fcf2e10c1e4 Mon Sep 17 00:00:00 2001 > >> From: Vincent Guittot <vincent.guittot(a)stericsson.com> > >> Date: Mon, 11 Oct 2010 09:23:18 +0200 > >> Subject: [PATCH] cpufreq_getspeed can't return negative value > >> > >> --- > >> arch/arm/mach-ux500/cpufreq.c | 4 +++- > >> 1 files changed, 3 insertions(+), 1 deletions(-) > >> > >> diff --git a/arch/arm/mach-ux500/cpufreq.c b/arch/arm/mach-ux500/cpufreq.c > >> index 4454a08..ea01240 100755 > >> --- a/arch/arm/mach-ux500/cpufreq.c > >> +++ b/arch/arm/mach-ux500/cpufreq.c > >> @@ -100,7 +100,9 @@ unsigned int u8500_getspeed(unsigned int cpu) > >> case ARM_50_OPP: return freq_table[1].frequency; > >> case ARM_100_OPP: return freq_table[2].frequency; > >> default: > >> - return -EINVAL; > >> + /* During boot, the returned value is undefined */ > >> + /* In this case, we set the max frequency */ > >> + return freq_table[2].frequency; > > > > freq_table[2] will break if another frequency is added to the table. I > > recommend defining something like a MAX_NUM_FREQ for the table and using that > > in the driver. > > > > The idea was to return the same value than ARM_100_OPP. I could map > the default use case to the ARM_100_OPP one instead ? Perhaps I'm being pedantic, but I prefer using names to hard-coded numbers. So, something like a enum freq { ARM_50_OPP ARM_100_OPP } used with return freq_table[ARM_100_OPP].frequency will continue to work even if you add ARM_25_OPP and ARM_75_OPP to the enum. /Amit

14 years, 2 months

Re: [PATCH] cpufreq for freescale mx51

by Amit Kucheria

Add'ed linaro-dev and linux-arm-kernel to CC. Thanks Yong, some feeback follows inline. On 10 Sep 29, Yong Shen wrote: > From: Yong Shen <yong.shen(a)linaro.org> > > --- > arch/arm/Kconfig | 6 + > arch/arm/mach-mx5/Kconfig | 1 + > arch/arm/mach-mx5/board-mx51_babbage.c | 32 ++++ > arch/arm/mach-mx5/clock-mx51.c | 53 ++++++ > arch/arm/plat-mxc/Makefile | 2 + > arch/arm/plat-mxc/cpufreq.c | 282 ++++++++++++++++++++++++++++++++ > arch/arm/plat-mxc/include/mach/mxc.h | 20 +++ > 7 files changed, 396 insertions(+), 0 deletions(-) > create mode 100644 arch/arm/plat-mxc/cpufreq.c > > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig > index 4db064e..64ebbc0 100644 > --- a/arch/arm/Kconfig > +++ b/arch/arm/Kconfig > @@ -1517,6 +1517,12 @@ if ARCH_HAS_CPUFREQ > > source "drivers/cpufreq/Kconfig" > > +config CPU_FREQ_IMX > + tristate "CPUfreq driver for i.MX CPUs" > + depends on ARCH_MXC && CPU_FREQ > + help > + This enables the CPUfreq driver for i.MX CPUs. > + > config CPU_FREQ_SA1100 > bool > > diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig > index 1576d51..5956fee 100644 > --- a/arch/arm/mach-mx5/Kconfig > +++ b/arch/arm/mach-mx5/Kconfig > @@ -5,6 +5,7 @@ config ARCH_MX51 > default y > select MXC_TZIC > select ARCH_MXC_IOMUX_V3 > + select ARCH_HAS_CPUFREQ > > comment "MX5 platforms:" > > diff --git a/arch/arm/mach-mx5/board-mx51_babbage.c b/arch/arm/mach-mx5/board-mx51_babbage.c > index ed885f9..e449e0b 100644 > --- a/arch/arm/mach-mx5/board-mx51_babbage.c > +++ b/arch/arm/mach-mx5/board-mx51_babbage.c > @@ -43,6 +43,31 @@ > #define MX51_USB_PLL_DIV_19_2_MHZ 0x01 > #define MX51_USB_PLL_DIV_24_MHZ 0x02 > > +struct cpu_wp *(*get_cpu_wp)(int *wp); > +static int num_cpu_wp = 2; use sizeof(array) instead of hard coding this. > +/* working point(wp): 0 - 800MHz; 1 - 166.25MHz; */ > +static struct cpu_wp cpu_wp_auto[] = { > + { > + .pll_rate = 800000000, > + .cpu_rate = 800000000, > + .pdf = 0, > + .mfi = 8, > + .mfd = 2, > + .mfn = 1, > + .cpu_podf = 0, > + .cpu_voltage = 1100000,}, > + { > + .pll_rate = 800000000, > + .cpu_rate = 160000000, > + .pdf = 4, > + .mfi = 8, > + .mfd = 2, > + .mfn = 1, > + .cpu_podf = 4, > + .cpu_voltage = 850000,}, > +}; This data should be moved out to a separate file (e.g. mx51_ratetable.h) since it will be useful to other boards too. If other boards can have different rate tables (and they can, depending on the revision of the silicon), then we can either 'assemble' the correct rate table based on a flag field or have explicit separate rate tables for each silicon revision. In any case, I suspect that there will be some core rates that will be common across silicon revisions. > static struct platform_device *devices[] __initdata = { > &mxc_fec_device, > }; > @@ -87,6 +112,12 @@ static struct imxuart_platform_data uart_pdata = { > .flags = IMXUART_HAVE_RTSCTS, > }; > > +struct cpu_wp *mx51_babbage_get_cpu_wp(int *wp) > +{ > + *wp = num_cpu_wp; > + return cpu_wp_auto; > +} > + > static inline void mxc_init_imx_uart(void) > { > mxc_register_device(&mxc_uart_device0, &uart_pdata); > @@ -246,6 +277,7 @@ static void __init mxc_board_init(void) > > static void __init mx51_babbage_timer_init(void) > { > + get_cpu_wp = mx51_babbage_get_cpu_wp; > mx51_clocks_init(32768, 24000000, 22579200, 0); > } > > diff --git a/arch/arm/mach-mx5/clock-mx51.c b/arch/arm/mach-mx5/clock-mx51.c > index d9f612d..f2488e6 100644 > --- a/arch/arm/mach-mx5/clock-mx51.c > +++ b/arch/arm/mach-mx5/clock-mx51.c > @@ -14,6 +14,7 @@ > #include <linux/delay.h> > #include <linux/clk.h> > #include <linux/io.h> > +#include <linux/time.h> > > #include <asm/clkdev.h> > #include <asm/div64.h> > @@ -28,6 +29,11 @@ > static unsigned long external_high_reference, external_low_reference; > static unsigned long oscillator_reference, ckih2_reference; > > +extern struct cpu_wp *(*get_cpu_wp)(int *wp); > +static int cpu_wp_nr; > +static int cpu_curr_wp; > +static struct cpu_wp *cpu_wp_tbl; > + > static struct clk osc_clk; > static struct clk pll1_main_clk; > static struct clk pll1_sw_clk; > @@ -38,7 +44,9 @@ static struct clk periph_apm_clk; > static struct clk ahb_clk; > static struct clk ipg_clk; > static struct clk usboh3_clk; > +static void __iomem *pll1_base; > > +#define SPIN_DELAY 1000000 /* in nanoseconds */ > #define MAX_DPLL_WAIT_TRIES 1000 /* 1000 * udelay(1) = 1ms */ > > static int _clk_ccgr_enable(struct clk *clk) > @@ -330,6 +338,32 @@ static int _clk_lp_apm_set_parent(struct clk *clk, struct clk *parent) > return 0; > } > > +/*! > + * Setup cpu clock based on working point. > + * @param wp cpu freq working point > + * @return 0 on success or error code on failure. > + */ > +int cpu_clk_set_wp(int wp) > +{ > + struct cpu_wp *p; > + u32 reg; > + > + if (wp == cpu_curr_wp) > + return 0; > + > + p = &cpu_wp_tbl[wp]; > + > + /*use post divider to change freq > + */ > + reg = __raw_readl(MXC_CCM_CACRR); > + reg &= ~MXC_CCM_CACRR_ARM_PODF_MASK; > + reg |= cpu_wp_tbl[wp].cpu_podf << MXC_CCM_CACRR_ARM_PODF_OFFSET; > + __raw_writel(reg, MXC_CCM_CACRR); > + cpu_curr_wp = wp; > + > + return 0; > +} > + > static unsigned long clk_arm_get_rate(struct clk *clk) > { > u32 cacrr, div; > @@ -342,6 +376,20 @@ static unsigned long clk_arm_get_rate(struct clk *clk) > return parent_rate / div; > } > > +int _clk_cpu_set_rate(struct clk *clk, unsigned long rate) > +{ > + u32 i; > + for (i = 0; i < cpu_wp_nr; i++) { > + if (rate == cpu_wp_tbl[i].cpu_rate) > + break; > + } > + if (i >= cpu_wp_nr) > + return -EINVAL; > + cpu_clk_set_wp(i); > + > + return 0; > +} > + > static int _clk_periph_apm_set_parent(struct clk *clk, struct clk *parent) > { > u32 reg, mux; > @@ -694,6 +742,7 @@ static struct clk periph_apm_clk = { > static struct clk cpu_clk = { > .parent = &pll1_sw_clk, > .get_rate = clk_arm_get_rate, > + .set_rate = _clk_cpu_set_rate, > }; > > static struct clk ahb_clk = { > @@ -821,6 +870,7 @@ static struct clk_lookup lookups[] = { > _REGISTER_CLOCK("mxc-ehci.1", "usb_ahb", ahb_clk) > _REGISTER_CLOCK("fsl-usb2-udc", "usb", usboh3_clk) > _REGISTER_CLOCK("fsl-usb2-udc", "usb_ahb", ahb_clk) > + _REGISTER_CLOCK(NULL, "cpu_clk", cpu_clk) > }; > > static void clk_tree_init(void) > @@ -848,10 +898,13 @@ int __init mx51_clocks_init(unsigned long ckil, unsigned long osc, > { > int i; > > + pll1_base = ioremap(MX51_PLL1_BASE_ADDR, SZ_4K); > + > external_low_reference = ckil; > external_high_reference = ckih1; > ckih2_reference = ckih2; > oscillator_reference = osc; > + cpu_wp_tbl = get_cpu_wp(&cpu_wp_nr); > > for (i = 0; i < ARRAY_SIZE(lookups); i++) > clkdev_add(&lookups[i]); > diff --git a/arch/arm/plat-mxc/Makefile b/arch/arm/plat-mxc/Makefile > index 895bc3c..c1bb400 100644 > --- a/arch/arm/plat-mxc/Makefile > +++ b/arch/arm/plat-mxc/Makefile > @@ -17,6 +17,8 @@ obj-$(CONFIG_USB_EHCI_MXC) += ehci.o > obj-$(CONFIG_MXC_ULPI) += ulpi.o > obj-$(CONFIG_ARCH_MXC_AUDMUX_V1) += audmux-v1.o > obj-$(CONFIG_ARCH_MXC_AUDMUX_V2) += audmux-v2.o > +# CPU FREQ support > +obj-$(CONFIG_CPU_FREQ_IMX) += cpufreq.o > ifdef CONFIG_SND_IMX_SOC > obj-y += ssi-fiq.o > obj-y += ssi-fiq-ksym.o > diff --git a/arch/arm/plat-mxc/cpufreq.c b/arch/arm/plat-mxc/cpufreq.c > new file mode 100644 > index 0000000..cae40f1 > --- /dev/null > +++ b/arch/arm/plat-mxc/cpufreq.c > @@ -0,0 +1,282 @@ > +/* > + * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved. > + */ > + > +/* > + * The code contained herein is licensed under the GNU General Public > + * License. You may obtain a copy of the GNU General Public License > + * Version 2 or later at the following locations: > + * > + * http://www.opensource.org/licenses/gpl-license.html > + * http://www.gnu.org/copyleft/gpl.html > + */ > + > +/*! > + * @file cpufreq.c > + * > + * @brief A driver for the Freescale Semiconductor i.MXC CPUfreq module. > + * > + * The CPUFREQ driver is for controling CPU frequency. It allows you to change > + * the CPU clock speed on the fly. > + * > + * @ingroup PM > + */ Fix these comments to follow the kernel commenting style. > +#include <linux/types.h> > +#include <linux/kernel.h> > +#include <linux/cpufreq.h> > +#include <linux/init.h> > +#include <linux/proc_fs.h> > +#include <linux/regulator/consumer.h> > +#include <linux/clk.h> > +#include <linux/delay.h> > +#include <linux/io.h> > +#include <mach/hardware.h> > +#include <asm/setup.h> > +#include <mach/clock.h> > +#include <asm/cacheflush.h> > +#include <linux/hrtimer.h> > + > +int cpu_freq_khz_min; > +int cpu_freq_khz_max; > +int arm_lpm_clk; > +int arm_normal_clk; > +int cpufreq_suspended; > +int cpufreq_trig_needed; > + > +static struct clk *cpu_clk; > +static struct cpufreq_frequency_table imx_freq_table[4]; > + > +extern int set_low_bus_freq(void); > +extern int set_high_bus_freq(int high_bus_speed); > +extern int low_freq_bus_used(void); > + > +extern struct cpu_wp *(*get_cpu_wp)(int *wp); > +static int cpu_wp_nr; > +static struct cpu_wp *cpu_wp_tbl; > + > +int set_cpu_freq(int freq) > +{ > + int ret = 0; > + int org_cpu_rate; > + int gp_volt = 0; > + int i; > + > + org_cpu_rate = clk_get_rate(cpu_clk); > + if (org_cpu_rate == freq) > + return ret; > + > + for (i = 0; i < cpu_wp_nr; i++) { > + if (freq == cpu_wp_tbl[i].cpu_rate) > + gp_volt = cpu_wp_tbl[i].cpu_voltage; > + } > + > + if (gp_volt == 0) > + return ret; > + > + ret = clk_set_rate(cpu_clk, freq); > + if (ret != 0) { > + printk(KERN_DEBUG "cannot set CPU clock rate\n"); > + return ret; > + } > + > + return ret; > +} > + > +static int mxc_verify_speed(struct cpufreq_policy *policy) > +{ > + if (policy->cpu != 0) > + return -EINVAL; > + > + return cpufreq_frequency_table_verify(policy, imx_freq_table); > +} > + > +static unsigned int mxc_get_speed(unsigned int cpu) > +{ > + if (cpu) > + return 0; > + > + return clk_get_rate(cpu_clk) / 1000; > +} > + > +static int calc_frequency_khz(int target, unsigned int relation) > +{ > + int i; > + > + if ((target * 1000) == clk_get_rate(cpu_clk)) > + return target; > + > + if (relation == CPUFREQ_RELATION_H) { > + for (i = cpu_wp_nr - 1; i >= 0; i--) { > + if (imx_freq_table[i].frequency <= target) > + return imx_freq_table[i].frequency; > + } > + } else if (relation == CPUFREQ_RELATION_L) { > + for (i = 0; i < cpu_wp_nr; i++) { > + if (imx_freq_table[i].frequency >= target) > + return imx_freq_table[i].frequency; > + } > + } > + printk(KERN_ERR "Error: No valid cpufreq relation\n"); > + return cpu_freq_khz_max; > +} > + > +static int mxc_set_target(struct cpufreq_policy *policy, > + unsigned int target_freq, unsigned int relation) > +{ > + struct cpufreq_freqs freqs; > + int freq_Hz; > + int ret = 0; > + > + if (cpufreq_suspended) { > + target_freq = clk_get_rate(cpu_clk) / 1000; > + freq_Hz = calc_frequency_khz(target_freq, relation) * 1000; > + if (freq_Hz == arm_lpm_clk) > + freqs.old = cpu_wp_tbl[cpu_wp_nr - 2].cpu_rate / 1000; > + else > + freqs.old = arm_lpm_clk / 1000; > + > + freqs.new = freq_Hz / 1000; > + freqs.cpu = 0; > + freqs.flags = 0; > + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); > + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); > + return ret; > + } > + /* > + * Some governors do not respects CPU and policy lower limits > + * which leads to bad things (division by zero etc), ensure > + * that such things do not happen. > + */ Isn't that a bug in the governor? Can you explain a bit? > + if (target_freq < policy->cpuinfo.min_freq) > + target_freq = policy->cpuinfo.min_freq; > + > + if (target_freq < policy->min) > + target_freq = policy->min; > + > + freq_Hz = calc_frequency_khz(target_freq, relation) * 1000; > + > + freqs.old = clk_get_rate(cpu_clk) / 1000; > + freqs.new = freq_Hz / 1000; > + freqs.cpu = 0; > + freqs.flags = 0; > + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); > + > + if (freqs.old != freqs.new) > + ret = set_cpu_freq(freq_Hz); > + > + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); > + > + return ret; > +} > + > +static int __init mxc_cpufreq_driver_init(struct cpufreq_policy *policy) > +{ > + int ret; > + int i; > + > + printk(KERN_INFO "i.MXC CPU frequency driver\n"); > + > + if (policy->cpu != 0) > + return -EINVAL; > + > + cpu_clk = clk_get(NULL, "cpu_clk"); > + if (IS_ERR(cpu_clk)) { > + printk(KERN_ERR "%s: failed to get cpu clock\n", __func__); > + return PTR_ERR(cpu_clk); > + } > + > + /* Set the current working point. */ > + cpu_wp_tbl = get_cpu_wp(&cpu_wp_nr); > + > + cpu_freq_khz_min = cpu_wp_tbl[0].cpu_rate / 1000; > + cpu_freq_khz_max = cpu_wp_tbl[0].cpu_rate / 1000; > + > + for (i = 0; i < cpu_wp_nr; i++) { > + imx_freq_table[cpu_wp_nr - 1 - i].index = cpu_wp_nr - i; cpu_wp_nr = 2 here 1st iteration of for loop: imx_freq_table[2 - 1 - 0].index = 2 - 0 so, imx_freq_table[1].index = 2 2nd iteration: imx_freq_table[2 - 1 - 1].index = 2 - 1 imx_freq_table[0].index = 1 So you're trying to reverse the table order? Why not just sort the table date in the way you want and add a comment on the top to keep it sorted. > + imx_freq_table[cpu_wp_nr - 1 - i].frequency = > + cpu_wp_tbl[i].cpu_rate / 1000; > + > + if ((cpu_wp_tbl[i].cpu_rate / 1000) < cpu_freq_khz_min) > + cpu_freq_khz_min = cpu_wp_tbl[i].cpu_rate / 1000; > + > + if ((cpu_wp_tbl[i].cpu_rate / 1000) > cpu_freq_khz_max) > + cpu_freq_khz_max = cpu_wp_tbl[i].cpu_rate / 1000; > + } > + > + imx_freq_table[i].index = 0; imx_freq_table[i].index = i ? > + imx_freq_table[i].frequency = CPUFREQ_TABLE_END; > + > + policy->cur = clk_get_rate(cpu_clk) / 1000; > + policy->governor = CPUFREQ_DEFAULT_GOVERNOR; > + policy->min = policy->cpuinfo.min_freq = cpu_freq_khz_min; > + policy->max = policy->cpuinfo.max_freq = cpu_freq_khz_max; > + > + arm_lpm_clk = cpu_freq_khz_min * 1000; > + arm_normal_clk = cpu_freq_khz_max * 1000; > + > + /* Manual states, that PLL stabilizes in two CLK32 periods */ > + policy->cpuinfo.transition_latency = 10; > + > + ret = cpufreq_frequency_table_cpuinfo(policy, imx_freq_table); > + > + if (ret < 0) { > + clk_put(cpu_clk); > + printk(KERN_ERR "%s: failed to register i.MXC CPUfreq\n", > + __func__); > + return ret; > + } > + > + cpufreq_frequency_table_get_attr(imx_freq_table, policy->cpu); > + return 0; > +} > + > +static int mxc_cpufreq_suspend(struct cpufreq_policy *policy, > + pm_message_t state) > +{ > + return 0; > +} Get rid of these, since you don't use them. > +static int mxc_cpufreq_resume(struct cpufreq_policy *policy) > +{ > + return 0; > +} Same here. > +static int mxc_cpufreq_driver_exit(struct cpufreq_policy *policy) > +{ > + cpufreq_frequency_table_put_attr(policy->cpu); > + > + /* Reset CPU to 665MHz */ > + set_cpu_freq(arm_normal_clk); > + clk_put(cpu_clk); > + return 0; > +} > + > +static struct cpufreq_driver mxc_driver = { > + .flags = CPUFREQ_STICKY, > + .verify = mxc_verify_speed, > + .target = mxc_set_target, > + .get = mxc_get_speed, > + .init = mxc_cpufreq_driver_init, mxc_cpufreq_init is ok. Lose the driver. > + .exit = mxc_cpufreq_driver_exit, same. > + .suspend = mxc_cpufreq_suspend, > + .resume = mxc_cpufreq_resume, Get rid of suspend/resume > + .name = "imx", > +}; > + > +static int __devinit mxc_cpufreq_init(void) > +{ > + return cpufreq_register_driver(&mxc_driver); > +} > + > +static void mxc_cpufreq_exit(void) > +{ > + cpufreq_unregister_driver(&mxc_driver); > +} > + > +module_init(mxc_cpufreq_init); > +module_exit(mxc_cpufreq_exit); > + > +MODULE_AUTHOR("Freescale Semiconductor, Inc."); > +MODULE_DESCRIPTION("CPUfreq driver for i.MX"); > +MODULE_LICENSE("GPL"); > diff --git a/arch/arm/plat-mxc/include/mach/mxc.h b/arch/arm/plat-mxc/include/mach/mxc.h > index a790bf2..14003b9 100644 > --- a/arch/arm/plat-mxc/include/mach/mxc.h > +++ b/arch/arm/plat-mxc/include/mach/mxc.h > @@ -133,6 +133,26 @@ extern unsigned int __mxc_cpu_type; > # define cpu_is_mxc91231() (0) > #endif > > +#ifndef __ASSEMBLY__ > + > +struct cpu_wp { > + u32 pll_reg; > + u32 pll_rate; > + u32 cpu_rate; > + u32 pdr0_reg; > + u32 pdf; > + u32 mfi; > + u32 mfd; > + u32 mfn; > + u32 cpu_voltage; > + u32 cpu_podf; > +}; > + > +#ifndef CONFIG_ARCH_MX5 > +struct cpu_wp *get_cpu_wp(int *wp); > +#endif > +#endif > + > #if defined(CONFIG_ARCH_MX3) || defined(CONFIG_ARCH_MX2) > /* These are deprecated, use mx[23][157]_setup_weimcs instead. */ > #define CSCR_U(n) (IO_ADDRESS(WEIM_BASE_ADDR + n * 0x10)) > -- > 1.6.3.3 >

14 years, 2 months

[PATCH] cpufreq, cpuidle & clock for MOP500 hrefp

by Vincent Guittot

Hi, Please find attached 3 patches for : - enabling cpuidle feature on MOP500 hrefp - making cpufreq stat available for powertop - adding debugfs clock tree for powerdebug These patches have been tested on the latest //git.linaro.org/bsp/st-ericsson/linux-2.6.34-ux500 Vincent

14 years, 2 months

Common ARM context save/restore code

by Vishwanath Sripathy

Hi All, Purpose of this email is to debate on the pros and cons of having a common ARM context save/restore code. Currently each SOC has its own way of saving/restoring ARM registers and there has been a proposal to have a common code for the same instead of duplicating the same in different places. Though it is technically possible to save/restore common ARM registers in a common place, there are some constraints. 1. Each of the SOC would have it's own set of trustzone implementation which means these registers have to be saved/restored in SOC specific code. 2. Some of the ARM registers (Aux ctrl etc) can be different for different SOCs which means they cannot be handled in common code. So it means that, in the middle of common code, there needs to be many platform specific hooks so that right sequence is followed. This will make the code more unredeable and difficult to debug and maintain. Also I am just wondering is there any other ARM SOC apart from OMAP, which saves/restores ARM registers in SW? Atleast I could not find such code in opensource. Regards Vishwa

14 years, 2 months

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linaro-dev October 2010