* Re: SMU-base PowerMac and server_mode
From: Olof Johansson @ 2009-10-06 16:07 UTC (permalink / raw)
To: Benjamin Herrenschmidt; +Cc: Romain Goyet, linuxppc-dev
In-Reply-To: <1254823882.6035.5.camel@pasglop>
On Tue, Oct 06, 2009 at 09:11:22PM +1100, Benjamin Herrenschmidt wrote:
> On Tue, 2009-10-06 at 11:16 +0200, Romain Goyet wrote:
> > Hi there,
> >
> >
> > I have this Quad G5 here, running GentooPPC64. Runs fine. Had a hard
> > time getting it to boot without a screen attached, but I eventually
> > managed to (yaboot was the culprit). However, this machine is
> > SMU-based, and I couldn't find a way to enable the equivalent of the
> > PMU's "server_mode" (i.e. automatically reboot after a power failure).
> > Is there any known way to do that ?
>
> I'm pretty sure I reverse engineered the necessary command a while back
> and somebody wrote a userland tool to set it, but I can't find it
> anymore :-)
Yeah, I had one but I have since lost it. I suspect it was on the
drive of my second quad that I wiped before I sold it, thinking there
was nothing of value on it. :(
-Olof
^ permalink raw reply
* Re: [PATCH] pasemi_mac: ethtool set settings support
From: Olof Johansson @ 2009-10-06 16:11 UTC (permalink / raw)
To: Valentine Barshak; +Cc: linuxppc-dev, jgarzik, netdev
In-Reply-To: <20091005133124.GA11717@ru.mvista.com>
On Mon, Oct 05, 2009 at 05:31:24PM +0400, Valentine Barshak wrote:
> Add ethtool set settings to pasemi_mac_ethtool.
>
> Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Acked-by: Olof Johansson <olof@lixom.net>
^ permalink raw reply
* can't access memory above 496M
From: Rossetti, Alan @ 2009-10-06 15:43 UTC (permalink / raw)
To: linuxppc-dev@lists.ozlabs.org
[-- Attachment #1: Type: text/plain, Size: 2653 bytes --]
We have an embedded prouct using 8270 based on pq2fads with MontaVista 4.0.1, kernel 2.6.10. We recently had a need to increase memory. We can populate 1x256M, 2x256M, 1x512M or 2X512M. In all configurations with at least 512M, it we set memory size to 496M or greater system crashes on boot up while populating rootfs. With memory size set to <496M system boots and runs fine. U-boot can see and access/test all memory.
Manual says alignment exception can also be due to crossing segment or BAT boundary. BATs look OK, configured as 256M blocks.
Any thoughts would be appreciated.
desched thread 0 started up.
Machine check in kernel mode.
Caused by (from SRR1=49030): Transfer error ack signal
Oops: machine check, sig: 7 [#1]
NIP: C0008680 LR: C0004FAC SP: C0971C80 REGS: c0971bd0 TRAP: 0200 Not tainted
MSR: 00049030 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
TASK = c0944ab0[1] 'swapper' THREAD: c0970000
Last syscall: 120
GPR00: 00000000 C0971C80 C0944AB0 EEC00000 EEC00000 00017C0B EEBFFFFC 00000004
GPR08: 0000007C 00000000 0000005F 00000000 00944C80 FFFE7DFF C093882C FFFFFFFF
GPR16: C01D3D84 C094C9E0 0009E000 004197FF 00001000 00000000 0009E000 C0971DCC
GPR24: 00000000 FF777000 0000000B 00000000 00000000 C0220000 C0971CD0 00000000
NIP [c0008680] fix_alignment+0x1e4/0x4bc
LR [c0004fac] AlignmentException+0x18/0xb4
Call backtrace:
c0004fac AlignmentException+0x18/0xb4
c0004648 ret_from_except_full+0x0/0x4c
c000d340 __copy_tofrom_user+0xa8/0x234
c0034f60 __generic_file_aio_write_nolock+0x280/0x4a4
c0035200 __generic_file_write_nolock+0x7c/0xc4
c003541c generic_file_write+0x58/0x17c
c004e48c vfs_write+0x9c/0x11c
c004e5e8 sys_write+0x4c/0x90
c0202610 populate_rootfs+0x12c/0x1a4
c0003a7c init+0x34/0x2b4
c0006684 kernel_thread+0x44/0x60
Kernel panic - not syncing: Attempted to kill init!
Al Rossetti
Staff Engineer
Tellabs Operations, Inc.
E-Mail: arossett@tellabs.com<mailto:arossett@tellabs.com>
============================================================
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and confidential and protected from disclosure. If the reader
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please notify us immediately by replying to the message and
deleting it from your computer. Thank you. Tellabs
============================================================
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^ permalink raw reply
* Re: [PATCH] pasemi_mac: ethtool get settings fix
From: Olof Johansson @ 2009-10-06 16:10 UTC (permalink / raw)
To: Valentine Barshak; +Cc: linuxppc-dev, jgarzik, netdev
In-Reply-To: <20091005132756.GA11704@ru.mvista.com>
Weird, I see my address in the to: line but I never got a copy in my inbox.
On Mon, Oct 05, 2009 at 05:27:56PM +0400, Valentine Barshak wrote:
> Not all pasemi mac interfaces can have a phy attached.
> For example, XAUI has no phy and phydev is NULL for it.
> In this case ethtool get settings causes kernel crash.
> Fix it by returning -EOPNOTSUPP if there's no PHY attached.
>
> Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Acked-by: Olof Johansson <olof@lixom.net>
> ---
> drivers/net/pasemi_mac_ethtool.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff -pruN linux-2.6.orig/drivers/net/pasemi_mac_ethtool.c linux-2.6/drivers/net/pasemi_mac_ethtool.c
> --- linux-2.6.orig/drivers/net/pasemi_mac_ethtool.c 2009-02-14 03:23:08.000000000 +0300
> +++ linux-2.6/drivers/net/pasemi_mac_ethtool.c 2009-10-05 16:21:52.000000000 +0400
> @@ -71,6 +71,9 @@ pasemi_mac_ethtool_get_settings(struct n
> struct pasemi_mac *mac = netdev_priv(netdev);
> struct phy_device *phydev = mac->phydev;
>
> + if (!phydev)
> + return -EOPNOTSUPP;
> +
> return phy_ethtool_gset(phydev, cmd);
> }
>
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@lists.ozlabs.org
> https://lists.ozlabs.org/listinfo/linuxppc-dev
^ permalink raw reply
* [PATCH] powerpc: pasemi_defconfig update
From: Olof Johansson @ 2009-10-06 15:52 UTC (permalink / raw)
To: linuxppc-dev
pasemi_defconfig hasn't been updated for a year.
Mostly a refresh of defaults, but this also disables 64K pages.
Signed-off-by: Olof Johansson <olof@lixom.net>
diff --git a/arch/powerpc/configs/pasemi_defconfig b/arch/powerpc/configs/pasemi_defconfig
index 4f8681c..20ba0cf 100644
--- a/arch/powerpc/configs/pasemi_defconfig
+++ b/arch/powerpc/configs/pasemi_defconfig
@@ -1,49 +1,58 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.26-rc3
-# Tue May 27 16:08:06 2008
+# Linux kernel version: 2.6.32-rc3
+# Tue Oct 6 10:27:18 2009
#
CONFIG_PPC64=y
#
# Processor support
#
+CONFIG_PPC_BOOK3S_64=y
+# CONFIG_PPC_BOOK3E_64 is not set
+CONFIG_PPC_BOOK3S=y
CONFIG_POWER4_ONLY=y
CONFIG_POWER4=y
# CONFIG_TUNE_CELL is not set
CONFIG_PPC_FPU=y
CONFIG_ALTIVEC=y
+# CONFIG_VSX is not set
CONFIG_PPC_STD_MMU=y
+CONFIG_PPC_STD_MMU_64=y
CONFIG_PPC_MM_SLICES=y
# CONFIG_VIRT_CPU_ACCOUNTING is not set
+CONFIG_PPC_HAVE_PMU_SUPPORT=y
+CONFIG_PPC_PERF_CTRS=y
CONFIG_SMP=y
CONFIG_NR_CPUS=2
CONFIG_64BIT=y
CONFIG_WORD_SIZE=64
-CONFIG_PPC_MERGE=y
+CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_MMU=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
+CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_IRQ_PER_CPU=y
CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_ARCH_HAS_ILOG2_U32=y
CONFIG_ARCH_HAS_ILOG2_U64=y
CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_ARCH_NO_VIRT_TO_BUS=y
CONFIG_PPC=y
CONFIG_EARLY_PRINTK=y
CONFIG_COMPAT=y
CONFIG_SYSVIPC_COMPAT=y
-CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
+CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_PPC_OF=y
CONFIG_OF=y
@@ -51,11 +60,14 @@ CONFIG_PPC_UDBG_16550=y
# CONFIG_GENERIC_TBSYNC is not set
CONFIG_AUDIT_ARCH=y
CONFIG_GENERIC_BUG=y
+CONFIG_DTC=y
# CONFIG_DEFAULT_UIMAGE is not set
# CONFIG_PPC_DCR_NATIVE is not set
# CONFIG_PPC_DCR_MMIO is not set
# CONFIG_PPC_OF_PLATFORM_PCI is not set
+CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+CONFIG_CONSTRUCTORS=y
#
# General setup
@@ -72,10 +84,20 @@ CONFIG_SYSVIPC_SYSCTL=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
+
+#
+# RCU Subsystem
+#
+CONFIG_TREE_RCU=y
+# CONFIG_TREE_PREEMPT_RCU is not set
+# CONFIG_RCU_TRACE is not set
+CONFIG_RCU_FANOUT=64
+# CONFIG_RCU_FANOUT_EXACT is not set
+# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=17
-# CONFIG_CGROUPS is not set
# CONFIG_GROUP_SCHED is not set
+# CONFIG_CGROUPS is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_RELAY is not set
@@ -84,13 +106,17 @@ CONFIG_NAMESPACES=y
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
+# CONFIG_NET_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
+CONFIG_RD_GZIP=y
+CONFIG_RD_BZIP2=y
+CONFIG_RD_LZMA=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
+CONFIG_ANON_INODES=y
# CONFIG_EMBEDDED is not set
CONFIG_SYSCTL_SYSCALL=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
@@ -98,32 +124,52 @@ CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
-CONFIG_COMPAT_BRK=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
-CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
+CONFIG_AIO=y
+CONFIG_HAVE_PERF_EVENTS=y
+
+#
+# Kernel Performance Events And Counters
+#
+CONFIG_PERF_EVENTS=y
+CONFIG_EVENT_PROFILE=y
+# CONFIG_PERF_COUNTERS is not set
CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_PCI_QUIRKS=y
CONFIG_SLUB_DEBUG=y
+CONFIG_COMPAT_BRK=y
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
-# CONFIG_MARKERS is not set
+CONFIG_TRACEPOINTS=y
CONFIG_OPROFILE=y
CONFIG_HAVE_OPROFILE=y
# CONFIG_KPROBES is not set
+CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
+CONFIG_HAVE_SYSCALL_WRAPPERS=y
+CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
-# CONFIG_HAVE_DMA_ATTRS is not set
-CONFIG_PROC_PAGE_MONITOR=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+CONFIG_HAVE_DMA_ATTRS=y
+CONFIG_USE_GENERIC_SMP_HELPERS=y
+CONFIG_HAVE_DMA_API_DEBUG=y
+
+#
+# GCOV-based kernel profiling
+#
+# CONFIG_GCOV_KERNEL is not set
+# CONFIG_SLOW_WORK is not set
+# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
-# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
@@ -131,11 +177,10 @@ CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
-# CONFIG_KMOD is not set
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
-# CONFIG_BLK_DEV_IO_TRACE is not set
# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_BLK_DEV_INTEGRITY is not set
CONFIG_BLOCK_COMPAT=y
#
@@ -150,19 +195,14 @@ CONFIG_DEFAULT_AS=y
# CONFIG_DEFAULT_CFQ is not set
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="anticipatory"
-CONFIG_CLASSIC_RCU=y
+# CONFIG_FREEZER is not set
+CONFIG_PPC_MSI_BITMAP=y
#
# Platform support
#
-CONFIG_PPC_MULTIPLATFORM=y
-# CONFIG_PPC_82xx is not set
-# CONFIG_PPC_83xx is not set
-# CONFIG_PPC_86xx is not set
# CONFIG_PPC_PSERIES is not set
# CONFIG_PPC_ISERIES is not set
-# CONFIG_PPC_MPC512x is not set
-# CONFIG_PPC_MPC5121 is not set
# CONFIG_PPC_PMAC is not set
# CONFIG_PPC_MAPLE is not set
CONFIG_PPC_PASEMI=y
@@ -178,8 +218,10 @@ CONFIG_PPC_PASEMI_MDIO=y
# CONFIG_PPC_CELL_NATIVE is not set
# CONFIG_PPC_IBM_CELL_BLADE is not set
# CONFIG_PPC_CELLEB is not set
+# CONFIG_PPC_CELL_QPACE is not set
# CONFIG_PQ2ADS is not set
CONFIG_PPC_NATIVE=y
+CONFIG_PPC_OF_BOOT_TRAMPOLINE=y
# CONFIG_IPIC is not set
CONFIG_MPIC=y
# CONFIG_MPIC_WEIRD is not set
@@ -213,6 +255,7 @@ CONFIG_CPU_FREQ_GOV_ONDEMAND=y
#
CONFIG_PPC_PASEMI_CPUFREQ=y
# CONFIG_FSL_ULI1575 is not set
+# CONFIG_SIMPLE_GPIO is not set
#
# Kernel options
@@ -226,16 +269,19 @@ CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
-# CONFIG_SCHED_HRTICK is not set
+CONFIG_SCHED_HRTICK=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+# CONFIG_HAVE_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_HUGETLB_PAGE_SIZE_VARIABLE=y
CONFIG_IOMMU_VMERGE=y
CONFIG_IOMMU_HELPER=y
+# CONFIG_SWIOTLB is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_ARCH_HAS_WALK_MEMORY=y
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
@@ -243,6 +289,7 @@ CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
# CONFIG_CRASH_DUMP is not set
# CONFIG_IRQ_ALL_CPUS is not set
# CONFIG_NUMA is not set
+CONFIG_MAX_ACTIVE_REGIONS=256
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
@@ -253,20 +300,28 @@ CONFIG_FLATMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
-# CONFIG_SPARSEMEM_STATIC is not set
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
-CONFIG_RESOURCES_64BIT=y
+CONFIG_MIGRATION=y
+CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
+CONFIG_HAVE_MLOCK=y
+CONFIG_HAVE_MLOCKED_PAGE_BIT=y
+# CONFIG_KSM is not set
+CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_PPC_HAS_HASH_64K=y
+# CONFIG_PPC_4K_PAGES is not set
+# CONFIG_PPC_16K_PAGES is not set
CONFIG_PPC_64K_PAGES=y
+# CONFIG_PPC_256K_PAGES is not set
CONFIG_FORCE_MAX_ZONEORDER=9
# CONFIG_PPC_SUBPAGE_PROT is not set
# CONFIG_SCHED_SMT is not set
CONFIG_PROC_DEVICETREE=y
# CONFIG_CMDLINE_BOOL is not set
+CONFIG_EXTRA_TARGETS=""
# CONFIG_PM is not set
# CONFIG_SECCOMP is not set
CONFIG_ISA_DMA_API=y
@@ -285,6 +340,8 @@ CONFIG_ARCH_SUPPORTS_MSI=y
CONFIG_PCI_MSI=y
CONFIG_PCI_LEGACY=y
# CONFIG_PCI_DEBUG is not set
+# CONFIG_PCI_STUB is not set
+# CONFIG_PCI_IOV is not set
CONFIG_PCCARD=y
CONFIG_PCMCIA_DEBUG=y
CONFIG_PCMCIA=y
@@ -301,13 +358,10 @@ CONFIG_CARDBUS=y
CONFIG_ELECTRA_CF=y
# CONFIG_HOTPLUG_PCI is not set
# CONFIG_HAS_RAPIDIO is not set
+# CONFIG_RELOCATABLE is not set
CONFIG_PAGE_OFFSET=0xc000000000000000
CONFIG_KERNEL_START=0xc000000000000000
CONFIG_PHYSICAL_START=0x00000000
-
-#
-# Networking
-#
CONFIG_NET=y
#
@@ -356,9 +410,11 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
+# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
+# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
@@ -368,25 +424,32 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
+# CONFIG_PHONET is not set
+# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
+# CONFIG_DCB is not set
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
+# CONFIG_NET_DROP_MONITOR is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
+CONFIG_WIRELESS=y
+# CONFIG_CFG80211 is not set
+CONFIG_CFG80211_DEFAULT_PS_VALUE=0
+# CONFIG_WIRELESS_OLD_REGULATORY is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_LIB80211 is not set
#
-# Wireless
+# CFG80211 needs to be enabled for MAC80211
#
-# CONFIG_CFG80211 is not set
-# CONFIG_WIRELESS_EXT is not set
-# CONFIG_MAC80211 is not set
-# CONFIG_IEEE80211 is not set
+# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
@@ -398,15 +461,19 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+# CONFIG_DEVTMPFS is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
+CONFIG_FIRMWARE_IN_KERNEL=y
+CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
CONFIG_MTD=y
# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_TESTS is not set
CONFIG_MTD_CONCAT=y
# CONFIG_MTD_PARTITIONS is not set
@@ -478,11 +545,17 @@ CONFIG_MTD_NAND_PASEMI=y
# CONFIG_MTD_ONENAND is not set
#
+# LPDDR flash memory drivers
+#
+# CONFIG_MTD_LPDDR is not set
+
+#
# UBI - Unsorted block images
#
# CONFIG_MTD_UBI is not set
CONFIG_OF_DEVICE=y
CONFIG_OF_I2C=y
+CONFIG_OF_MDIO=y
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_FD is not set
@@ -501,29 +574,41 @@ CONFIG_BLK_DEV_RAM_SIZE=16384
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
+# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
-# CONFIG_EEPROM_93CX6 is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
+# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
+# CONFIG_HP_ILO is not set
+# CONFIG_ISL29003 is not set
+# CONFIG_C2PORT is not set
+
+#
+# EEPROM support
+#
+# CONFIG_EEPROM_AT24 is not set
+CONFIG_EEPROM_LEGACY=y
+# CONFIG_EEPROM_MAX6875 is not set
+# CONFIG_EEPROM_93CX6 is not set
+# CONFIG_CB710_CORE is not set
CONFIG_HAVE_IDE=y
CONFIG_IDE=y
-CONFIG_BLK_DEV_IDE=y
#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
+CONFIG_IDE_ATAPI=y
# CONFIG_BLK_DEV_IDE_SATA is not set
-CONFIG_BLK_DEV_IDEDISK=y
-CONFIG_IDEDISK_MULTI_MODE=y
+CONFIG_IDE_GD=y
+CONFIG_IDE_GD_ATA=y
+# CONFIG_IDE_GD_ATAPI is not set
# CONFIG_BLK_DEV_IDECS is not set
# CONFIG_BLK_DEV_DELKIN is not set
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
-# CONFIG_BLK_DEV_IDEFLOPPY is not set
-CONFIG_BLK_DEV_IDESCSI=y
CONFIG_IDE_TASK_IOCTL=y
CONFIG_IDE_PROC_FS=y
@@ -542,14 +627,13 @@ CONFIG_IDE_PROC_FS=y
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
-# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
-# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
+# CONFIG_BLK_DEV_IT8172 is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
# CONFIG_BLK_DEV_NS87415 is not set
@@ -563,8 +647,6 @@ CONFIG_IDE_PROC_FS=y
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
# CONFIG_BLK_DEV_IDEDMA is not set
-# CONFIG_BLK_DEV_HD_ONLY is not set
-# CONFIG_BLK_DEV_HD is not set
#
# SCSI device support
@@ -586,10 +668,6 @@ CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=y
CONFIG_CHR_DEV_SCH=y
-
-#
-# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
-#
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
@@ -606,6 +684,8 @@ CONFIG_SCSI_WAIT_SCAN=m
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
+# CONFIG_SCSI_CXGB3_ISCSI is not set
+# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
@@ -614,11 +694,16 @@ CONFIG_SCSI_LOWLEVEL=y
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
+# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
+# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_HPTIOP is not set
+# CONFIG_LIBFC is not set
+# CONFIG_LIBFCOE is not set
+# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
@@ -626,7 +711,6 @@ CONFIG_SCSI_LOWLEVEL=y
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
-# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
@@ -637,10 +721,14 @@ CONFIG_SCSI_LOWLEVEL=y
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_DEBUG is not set
+# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
+# CONFIG_SCSI_DH is not set
+# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
+CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_SATA_PMP=y
# CONFIG_SATA_AHCI is not set
CONFIG_SATA_SIL24=y
@@ -662,6 +750,7 @@ CONFIG_SATA_MV=y
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
+# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_CMD64X is not set
@@ -690,6 +779,7 @@ CONFIG_ATA_GENERIC=y
CONFIG_PATA_PCMCIA=y
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
+# CONFIG_PATA_RDC is not set
# CONFIG_PATA_RZ1000 is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SERVERWORKS is not set
@@ -703,12 +793,15 @@ CONFIG_PATA_OF_PLATFORM=y
# CONFIG_PATA_SCH is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
+CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
CONFIG_MD_RAID10=y
CONFIG_MD_RAID456=y
-CONFIG_MD_RAID5_RESHAPE=y
+# CONFIG_MULTICORE_RAID456 is not set
+CONFIG_MD_RAID6_PQ=y
+# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
CONFIG_BLK_DEV_DM=y
@@ -725,12 +818,19 @@ CONFIG_DM_CRYPT=y
#
# IEEE 1394 (FireWire) support
#
+
+#
+# You can enable one or both FireWire driver stacks.
+#
+
+#
+# See the help texts for more information.
+#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
# CONFIG_MACINTOSH_DRIVERS is not set
CONFIG_NETDEVICES=y
-# CONFIG_NETDEVICES_MULTIQUEUE is not set
CONFIG_DUMMY=y
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
@@ -753,6 +853,9 @@ CONFIG_MARVELL_PHY=y
# CONFIG_BROADCOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
+# CONFIG_NATIONAL_PHY is not set
+# CONFIG_STE10XP is not set
+# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_FIXED_PHY is not set
# CONFIG_MDIO_BITBANG is not set
CONFIG_NET_ETHERNET=y
@@ -761,19 +864,23 @@ CONFIG_MII=y
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
+# CONFIG_ETHOC is not set
+# CONFIG_DNET is not set
# CONFIG_NET_TULIP is not set
# CONFIG_HP100 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
+# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
+# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_B44 is not set
# CONFIG_FORCEDETH is not set
-# CONFIG_EEPRO100 is not set
# CONFIG_E100 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
@@ -783,19 +890,22 @@ CONFIG_NET_PCI=y
# CONFIG_R6040 is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
+# CONFIG_SMSC9420 is not set
# CONFIG_SUNDANCE is not set
+# CONFIG_TLAN is not set
+# CONFIG_KS8842 is not set
+# CONFIG_KS8851_MLL is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_SC92031 is not set
+# CONFIG_ATL2 is not set
CONFIG_NETDEV_1000=y
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
CONFIG_E1000=y
-CONFIG_E1000_NAPI=y
-# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_E1000E is not set
-# CONFIG_E1000E_ENABLED is not set
# CONFIG_IP1000 is not set
# CONFIG_IGB is not set
+# CONFIG_IGBVF is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
@@ -806,30 +916,40 @@ CONFIG_E1000_NAPI=y
# CONFIG_VIA_VELOCITY is not set
CONFIG_TIGON3=y
# CONFIG_BNX2 is not set
+# CONFIG_CNIC is not set
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
+# CONFIG_ATL1E is not set
+# CONFIG_ATL1C is not set
+# CONFIG_JME is not set
CONFIG_NETDEV_10000=y
# CONFIG_CHELSIO_T1 is not set
+CONFIG_CHELSIO_T3_DEPENDS=y
# CONFIG_CHELSIO_T3 is not set
+# CONFIG_ENIC is not set
# CONFIG_IXGBE is not set
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set
+# CONFIG_VXGE is not set
# CONFIG_MYRI10GE is not set
# CONFIG_NETXEN_NIC is not set
# CONFIG_NIU is not set
CONFIG_PASEMI_MAC=y
+# CONFIG_MLX4_EN is not set
# CONFIG_MLX4_CORE is not set
# CONFIG_TEHUTI is not set
# CONFIG_BNX2X is not set
+# CONFIG_QLGE is not set
# CONFIG_SFC is not set
+# CONFIG_BE2NET is not set
# CONFIG_TR is not set
+CONFIG_WLAN=y
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
#
-# Wireless LAN
+# Enable WiMAX (Networking options) to see the WiMAX drivers
#
-# CONFIG_WLAN_PRE80211 is not set
-# CONFIG_WLAN_80211 is not set
-# CONFIG_IWLWIFI_LEDS is not set
#
# USB Network Adapters
@@ -874,17 +994,23 @@ CONFIG_INPUT_EVDEV=y
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
+# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ATKBD is not set
-# CONFIG_KEYBOARD_SUNKBD is not set
+# CONFIG_QT2160 is not set
# CONFIG_KEYBOARD_LKKBD is not set
-# CONFIG_KEYBOARD_XTKBD is not set
+# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_NEWTON is not set
+# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
+# CONFIG_KEYBOARD_SUNKBD is not set
+# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
# CONFIG_MOUSE_PS2 is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
+# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_VSXXXAA is not set
+# CONFIG_MOUSE_SYNAPTICS_I2C is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
@@ -900,6 +1026,7 @@ CONFIG_INPUT_MOUSE=y
# Character devices
#
CONFIG_VT=y
+CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
@@ -926,10 +1053,13 @@ CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_OF_PLATFORM is not set
CONFIG_UNIX98_PTYS=y
+# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=4
+# CONFIG_HVC_UDBG is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
+# CONFIG_HW_RANDOM_TIMERIOMEM is not set
CONFIG_HW_RANDOM_PASEMI=y
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
@@ -948,57 +1078,85 @@ CONFIG_MAX_RAW_DEVS=256
CONFIG_DEVPORT=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=y
#
# I2C Hardware Bus support
#
+
+#
+# PC SMBus host controller drivers
+#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
-# CONFIG_I2C_I810 is not set
+# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
-# CONFIG_I2C_OCORES is not set
-# CONFIG_I2C_PARPORT_LIGHT is not set
-CONFIG_I2C_PASEMI=y
-# CONFIG_I2C_PROSAVAGE is not set
-# CONFIG_I2C_SAVAGE4 is not set
-# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
-# CONFIG_I2C_TAOS_EVM is not set
-# CONFIG_I2C_STUB is not set
-# CONFIG_I2C_TINY_USB is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set
+
+#
+# I2C system bus drivers (mostly embedded / system-on-chip)
+#
+# CONFIG_I2C_OCORES is not set
+CONFIG_I2C_PASEMI=y
+# CONFIG_I2C_SIMTEC is not set
+
+#
+# External I2C/SMBus adapter drivers
+#
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_TAOS_EVM is not set
+# CONFIG_I2C_TINY_USB is not set
+
+#
+# Graphics adapter I2C/DDC channel drivers
+#
# CONFIG_I2C_VOODOO3 is not set
+
+#
+# Other I2C/SMBus bus drivers
+#
# CONFIG_I2C_PCA_PLATFORM is not set
+# CONFIG_I2C_STUB is not set
#
# Miscellaneous I2C Chip support
#
# CONFIG_DS1682 is not set
-CONFIG_EEPROM_LEGACY=y
-# CONFIG_SENSORS_PCF8574 is not set
-# CONFIG_PCF8575 is not set
-# CONFIG_SENSORS_PCF8591 is not set
-# CONFIG_SENSORS_MAX6875 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_I2C_DEBUG_CHIP is not set
# CONFIG_SPI is not set
+
+#
+# PPS support
+#
+# CONFIG_PPS is not set
+CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
+# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=y
+# CONFIG_HWMON_DEBUG_CHIP is not set
+
+#
+# Native drivers
+#
+# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
@@ -1006,14 +1164,17 @@ CONFIG_HWMON_VID=y
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
+# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7473 is not set
+# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
+# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_IT87 is not set
@@ -1028,10 +1189,14 @@ CONFIG_SENSORS_LM85=y
CONFIG_SENSORS_LM90=y
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
+# CONFIG_SENSORS_LTC4215 is not set
+# CONFIG_SENSORS_LTC4245 is not set
+# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
+# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
@@ -1039,6 +1204,8 @@ CONFIG_SENSORS_LM90=y
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_THMC50 is not set
+# CONFIG_SENSORS_TMP401 is not set
+# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
@@ -1050,44 +1217,40 @@ CONFIG_SENSORS_LM90=y
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
-# CONFIG_HWMON_DEBUG_CHIP is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
+CONFIG_SSB_POSSIBLE=y
#
# Sonics Silicon Backplane
#
-CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
#
# Multifunction device drivers
#
+# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
-
-#
-# Multimedia devices
-#
-
-#
-# Multimedia core support
-#
-# CONFIG_VIDEO_DEV is not set
-# CONFIG_DVB_CORE is not set
-# CONFIG_VIDEO_MEDIA is not set
-
-#
-# Multimedia drivers
-#
-CONFIG_DAB=y
-# CONFIG_USB_DABUSB is not set
+# CONFIG_TWL4030_CORE is not set
+# CONFIG_MFD_TMIO is not set
+# CONFIG_PMIC_DA903X is not set
+# CONFIG_MFD_WM8400 is not set
+# CONFIG_MFD_WM831X is not set
+# CONFIG_MFD_WM8350_I2C is not set
+# CONFIG_MFD_PCF50633 is not set
+# CONFIG_AB3100_CORE is not set
+# CONFIG_REGULATOR is not set
+# CONFIG_MEDIA_SUPPORT is not set
#
# Graphics support
#
# CONFIG_AGP is not set
+CONFIG_VGA_ARB=y
CONFIG_DRM=y
+CONFIG_DRM_KMS_HELPER=y
+CONFIG_DRM_TTM=y
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
CONFIG_DRM_RADEON=y
@@ -1099,6 +1262,7 @@ CONFIG_VGASTATE=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_DDC=y
+# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
@@ -1140,6 +1304,7 @@ CONFIG_FB_RADEON_BACKLIGHT=y
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
+# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
@@ -1148,12 +1313,16 @@ CONFIG_FB_RADEON_BACKLIGHT=y
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
+# CONFIG_FB_CARMINE is not set
# CONFIG_FB_IBM_GXT4500 is not set
# CONFIG_FB_VIRTUAL is not set
+# CONFIG_FB_METRONOME is not set
+# CONFIG_FB_MB862XX is not set
+# CONFIG_FB_BROADSHEET is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
-# CONFIG_BACKLIGHT_CORGI is not set
+CONFIG_BACKLIGHT_GENERIC=y
#
# Display device support
@@ -1177,15 +1346,9 @@ CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
CONFIG_LOGO_LINUX_VGA16=y
CONFIG_LOGO_LINUX_CLUT224=y
-
-#
-# Sound
-#
CONFIG_SOUND=y
-
-#
-# Advanced Linux Sound Architecture
-#
+CONFIG_SOUND_OSS_CORE=y
+CONFIG_SOUND_OSS_CORE_PRECLAIM=y
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
@@ -1198,24 +1361,24 @@ CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
+# CONFIG_SND_HRTIMER is not set
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
-
-#
-# Generic devices
-#
+CONFIG_SND_RAWMIDI_SEQ=y
+# CONFIG_SND_OPL3_LIB_SEQ is not set
+# CONFIG_SND_OPL4_LIB_SEQ is not set
+# CONFIG_SND_SBAWE_SEQ is not set
+# CONFIG_SND_EMU10K1_SEQ is not set
+CONFIG_SND_DRIVERS=y
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
-
-#
-# PCI devices
-#
+CONFIG_SND_PCI=y
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALS4000 is not set
@@ -1234,6 +1397,7 @@ CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5530 is not set
+# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
@@ -1246,6 +1410,8 @@ CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
+# CONFIG_SND_INDIGOIOX is not set
+# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
@@ -1262,6 +1428,7 @@ CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
+# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
@@ -1277,57 +1444,64 @@ CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
-
-#
-# ALSA PowerMac devices
-#
-
-#
-# ALSA PowerPC devices
-#
-
-#
-# USB devices
-#
+CONFIG_SND_PPC=y
+CONFIG_SND_USB=y
CONFIG_SND_USB_AUDIO=y
CONFIG_SND_USB_USX2Y=y
# CONFIG_SND_USB_CAIAQ is not set
-
-#
-# PCMCIA devices
-#
+CONFIG_SND_PCMCIA=y
# CONFIG_SND_VXPOCKET is not set
# CONFIG_SND_PDAUDIOCF is not set
-
-#
-# System on Chip audio support
-#
# CONFIG_SND_SOC is not set
-
-#
-# ALSA SoC audio for Freescale SOCs
-#
-
-#
-# SoC Audio for the Texas Instruments OMAP
-#
-
-#
-# Open Sound System
-#
# CONFIG_SOUND_PRIME is not set
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
-# CONFIG_HID_DEBUG is not set
# CONFIG_HIDRAW is not set
#
# USB Input Devices
#
CONFIG_USB_HID=y
-# CONFIG_USB_HIDINPUT_POWERBOOK is not set
-# CONFIG_HID_FF is not set
+# CONFIG_HID_PID is not set
# CONFIG_USB_HIDDEV is not set
+
+#
+# Special HID drivers
+#
+CONFIG_HID_A4TECH=y
+CONFIG_HID_APPLE=y
+CONFIG_HID_BELKIN=y
+CONFIG_HID_CHERRY=y
+CONFIG_HID_CHICONY=y
+CONFIG_HID_CYPRESS=y
+CONFIG_HID_DRAGONRISE=y
+# CONFIG_DRAGONRISE_FF is not set
+CONFIG_HID_EZKEY=y
+CONFIG_HID_KYE=y
+CONFIG_HID_GYRATION=y
+CONFIG_HID_TWINHAN=y
+CONFIG_HID_KENSINGTON=y
+CONFIG_HID_LOGITECH=y
+# CONFIG_LOGITECH_FF is not set
+# CONFIG_LOGIRUMBLEPAD2_FF is not set
+CONFIG_HID_MICROSOFT=y
+CONFIG_HID_MONTEREY=y
+CONFIG_HID_NTRIG=y
+CONFIG_HID_PANTHERLORD=y
+# CONFIG_PANTHERLORD_FF is not set
+CONFIG_HID_PETALYNX=y
+CONFIG_HID_SAMSUNG=y
+CONFIG_HID_SONY=y
+CONFIG_HID_SUNPLUS=y
+CONFIG_HID_GREENASIA=y
+# CONFIG_GREENASIA_FF is not set
+CONFIG_HID_SMARTJOYPLUS=y
+# CONFIG_SMARTJOYPLUS_FF is not set
+CONFIG_HID_TOPSEED=y
+CONFIG_HID_THRUSTMASTER=y
+# CONFIG_THRUSTMASTER_FF is not set
+CONFIG_HID_ZEROPLUS=y
+# CONFIG_ZEROPLUS_FF is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
@@ -1343,18 +1517,26 @@ CONFIG_USB_DEVICEFS=y
# CONFIG_USB_DEVICE_CLASS is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
+# CONFIG_USB_MON is not set
+# CONFIG_USB_WUSB is not set
+# CONFIG_USB_WUSB_CBAF is not set
#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
+# CONFIG_USB_XHCI_HCD is not set
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
CONFIG_USB_EHCI_HCD_PPC_OF=y
+# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
+# CONFIG_USB_ISP1362_HCD is not set
CONFIG_USB_OHCI_HCD=y
+# CONFIG_USB_OHCI_HCD_PPC_OF_BE is not set
+# CONFIG_USB_OHCI_HCD_PPC_OF_LE is not set
# CONFIG_USB_OHCI_HCD_PPC_OF is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
@@ -1363,6 +1545,8 @@ CONFIG_USB_UHCI_HCD=y
CONFIG_USB_SL811_HCD=y
# CONFIG_USB_SL811_CS is not set
# CONFIG_USB_R8A66597_HCD is not set
+# CONFIG_USB_WHCI_HCD is not set
+# CONFIG_USB_HWA_HCD is not set
#
# USB Device Class drivers
@@ -1370,20 +1554,20 @@ CONFIG_USB_SL811_HCD=y
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
+# CONFIG_USB_TMC is not set
#
-# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#
#
-# may also be needed; see USB_STORAGE Help for more information
+# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=y
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
-# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
@@ -1399,7 +1583,6 @@ CONFIG_USB_LIBUSUAL=y
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
-# CONFIG_USB_MON is not set
#
# USB port drivers
@@ -1412,7 +1595,7 @@ CONFIG_USB_LIBUSUAL=y
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
-# CONFIG_USB_AUERSWALD is not set
+# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
@@ -1420,7 +1603,6 @@ CONFIG_USB_LIBUSUAL=y
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
-# CONFIG_USB_PHIDGET is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
@@ -1429,7 +1611,15 @@ CONFIG_USB_LIBUSUAL=y
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
+# CONFIG_USB_ISIGHTFW is not set
+# CONFIG_USB_VST is not set
# CONFIG_USB_GADGET is not set
+
+#
+# OTG and related infrastructure
+#
+# CONFIG_NOP_USB_XCEIV is not set
+# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
@@ -1443,6 +1633,7 @@ CONFIG_EDAC=y
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_MM_EDAC=y
CONFIG_EDAC_PASEMI=y
+# CONFIG_EDAC_CPC925 is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
@@ -1472,6 +1663,9 @@ CONFIG_RTC_DRV_DS1307=y
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_S35390A is not set
+# CONFIG_RTC_DRV_FM3130 is not set
+# CONFIG_RTC_DRV_RX8581 is not set
+# CONFIG_RTC_DRV_RX8025 is not set
#
# SPI RTC drivers
@@ -1481,21 +1675,31 @@ CONFIG_RTC_DRV_DS1307=y
# Platform RTC drivers
#
# CONFIG_RTC_DRV_CMOS is not set
+# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_V3020 is not set
#
# on-CPU RTC drivers
#
+# CONFIG_RTC_DRV_GENERIC is not set
# CONFIG_DMADEVICES is not set
+# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
#
+# TI VLYNQ
+#
+# CONFIG_STAGING is not set
+
+#
# File systems
#
CONFIG_EXT2_FS=y
@@ -1504,11 +1708,13 @@ CONFIG_EXT2_FS_POSIX_ACL=y
# CONFIG_EXT2_FS_SECURITY is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
+# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_XATTR=y
# CONFIG_EXT3_FS_POSIX_ACL is not set
# CONFIG_EXT3_FS_SECURITY is not set
-# CONFIG_EXT4DEV_FS is not set
+# CONFIG_EXT4_FS is not set
CONFIG_JBD=y
+# CONFIG_JBD_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
@@ -1516,6 +1722,10 @@ CONFIG_FS_POSIX_ACL=y
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
+# CONFIG_BTRFS_FS is not set
+# CONFIG_NILFS2_FS is not set
+CONFIG_FILE_LOCKING=y
+CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
@@ -1525,6 +1735,11 @@ CONFIG_AUTOFS4_FS=y
# CONFIG_FUSE_FS is not set
#
+# Caches
+#
+# CONFIG_FSCACHE is not set
+
+#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
@@ -1549,16 +1764,14 @@ CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
+CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_CONFIGFS_FS=y
-
-#
-# Miscellaneous filesystems
-#
+CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
@@ -1578,8 +1791,10 @@ CONFIG_JFFS2_ZLIB=y
CONFIG_JFFS2_RTIME=y
# CONFIG_JFFS2_RUBIN is not set
# CONFIG_CRAMFS is not set
+# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
+# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
@@ -1590,18 +1805,17 @@ CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
# CONFIG_NFS_V4 is not set
+CONFIG_ROOT_NFS=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
# CONFIG_NFSD_V3_ACL is not set
CONFIG_NFSD_V4=y
-CONFIG_ROOT_NFS=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
-# CONFIG_SUNRPC_BIND34 is not set
CONFIG_RPCSEC_GSS_KRB5=y
# CONFIG_RPCSEC_GSS_SPKM3 is not set
# CONFIG_SMB_FS is not set
@@ -1672,25 +1886,30 @@ CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set
# CONFIG_DLM is not set
+CONFIG_BINARY_PRINTF=y
#
# Library routines
#
CONFIG_BITREVERSE=y
-# CONFIG_GENERIC_FIND_FIRST_BIT is not set
+CONFIG_GENERIC_FIND_LAST_BIT=y
CONFIG_CRC_CCITT=y
# CONFIG_CRC16 is not set
+# CONFIG_CRC_T10DIF is not set
CONFIG_CRC_ITU_T=y
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
-CONFIG_LIBCRC32C=m
+# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
-CONFIG_PLIST=y
+CONFIG_DECOMPRESS_GZIP=y
+CONFIG_DECOMPRESS_BZIP2=y
+CONFIG_DECOMPRESS_LZMA=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_HAVE_LMB=y
+CONFIG_NLATTR=y
#
# Kernel hacking
@@ -1700,18 +1919,25 @@ CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
+# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_FS is not set
+CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
CONFIG_DETECT_SOFTLOCKUP=y
+# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
+CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
+CONFIG_DETECT_HUNG_TASK=y
+# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
+CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
+# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
@@ -1721,26 +1947,71 @@ CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
+CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
-# CONFIG_BOOT_PRINTK_DELAY is not set
+# CONFIG_DEBUG_NOTIFIERS is not set
+# CONFIG_DEBUG_CREDENTIALS is not set
# CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
+# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
+# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_FAULT_INJECTION is not set
+# CONFIG_LATENCYTOP is not set
+CONFIG_SYSCTL_SYSCALL_CHECK=y
+# CONFIG_DEBUG_PAGEALLOC is not set
+CONFIG_NOP_TRACER=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_RING_BUFFER=y
+CONFIG_EVENT_TRACING=y
+CONFIG_CONTEXT_SWITCH_TRACER=y
+CONFIG_RING_BUFFER_ALLOW_SWAP=y
+CONFIG_TRACING=y
+CONFIG_TRACING_SUPPORT=y
+CONFIG_FTRACE=y
+# CONFIG_FUNCTION_TRACER is not set
+# CONFIG_IRQSOFF_TRACER is not set
+# CONFIG_SCHED_TRACER is not set
+# CONFIG_ENABLE_DEFAULT_TRACERS is not set
+# CONFIG_BOOT_TRACER is not set
+CONFIG_BRANCH_PROFILE_NONE=y
+# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
+# CONFIG_PROFILE_ALL_BRANCHES is not set
+# CONFIG_STACK_TRACER is not set
+# CONFIG_KMEMTRACE is not set
+# CONFIG_WORKQUEUE_TRACER is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_RING_BUFFER_BENCHMARK is not set
+# CONFIG_DYNAMIC_DEBUG is not set
+# CONFIG_DMA_API_DEBUG is not set
# CONFIG_SAMPLES is not set
+CONFIG_HAVE_ARCH_KGDB=y
+# CONFIG_KGDB is not set
+# CONFIG_PPC_DISABLE_WERROR is not set
+CONFIG_PPC_WERROR=y
+CONFIG_PRINT_STACK_DEPTH=64
# CONFIG_DEBUG_STACKOVERFLOW is not set
# CONFIG_DEBUG_STACK_USAGE is not set
-# CONFIG_DEBUG_PAGEALLOC is not set
-CONFIG_DEBUGGER=y
+# CONFIG_PPC_EMULATED_STATS is not set
+# CONFIG_CODE_PATCHING_SELFTEST is not set
+# CONFIG_FTR_FIXUP_SELFTEST is not set
+# CONFIG_MSI_BITMAP_SELFTEST is not set
CONFIG_XMON=y
CONFIG_XMON_DEFAULT=y
CONFIG_XMON_DISASSEMBLY=y
+CONFIG_DEBUGGER=y
# CONFIG_IRQSTACKS is not set
+# CONFIG_VIRQ_DEBUG is not set
# CONFIG_BOOTX_TEXT is not set
# CONFIG_PPC_EARLY_DEBUG is not set
@@ -1749,23 +2020,34 @@ CONFIG_XMON_DISASSEMBLY=y
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
+# CONFIG_SECURITYFS is not set
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
CONFIG_XOR_BLOCKS=y
CONFIG_ASYNC_CORE=y
CONFIG_ASYNC_MEMCPY=y
CONFIG_ASYNC_XOR=y
+CONFIG_ASYNC_PQ=y
+CONFIG_ASYNC_RAID6_RECOV=y
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
+CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
+CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
+CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
+CONFIG_CRYPTO_HASH2=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_PCOMP=y
CONFIG_CRYPTO_MANAGER=y
+CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
+CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=y
# CONFIG_CRYPTO_TEST is not set
@@ -1793,14 +2075,20 @@ CONFIG_CRYPTO_CBC=y
#
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
+# CONFIG_CRYPTO_VMAC is not set
#
# Digest
#
# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_GHASH is not set
CONFIG_CRYPTO_MD4=y
CONFIG_CRYPTO_MD5=y
# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_RMD128 is not set
+# CONFIG_CRYPTO_RMD160 is not set
+# CONFIG_CRYPTO_RMD256 is not set
+# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
@@ -1830,7 +2118,13 @@ CONFIG_CRYPTO_DES=y
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
+# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set
+
+#
+# Random Number Generation
+#
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_HIFN_795X is not set
# CONFIG_PPC_CLOCK is not set
^ permalink raw reply related
* Re: [PATCH 3/6] 8xx: get rid of _PAGE_HWWRITE dependency in MMU.
From: Joakim Tjernlund @ 2009-10-06 15:40 UTC (permalink / raw)
To: Benjamin Herrenschmidt; +Cc: Scott Wood, linuxppc-dev@ozlabs.org, Rex Feany
In-Reply-To: <1254811547.6035.3.camel@pasglop>
Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote on 06/10/2009 08:45:47:
>
> On Tue, 2009-10-06 at 08:15 +0200, Joakim Tjernlund wrote:
>
> > Yes, I would too but TLB Miss knows nothing about load/store, protection etc.
> > because DSISR isn't set. So I cannot see any other way than the TLB Error way.
>
> Hrm... that MMU really sucks more than I thought :-(
>
> I'll go read the manual and think about that a bit more.
I realise now that for an ITLB Miss I can work out everything I need.
an ITLB must be a read en everything else is in the linux pte.
Just check present and user, add accessed if not already there.
I blame that on too little sleep :)
I don't think I will dwell on that ATM.
Jocke
^ permalink raw reply
* [v7 PATCH 7/7]: pSeries: implement pSeries processor idle module.
From: Arun R Bharadwaj @ 2009-10-06 15:35 UTC (permalink / raw)
To: Peter Zijlstra, Joel Schopp, Benjamin Herrenschmidt,
Paul Mackerras, Ingo Molnar, Vaidyanathan Srinivasan,
Dipankar Sarma, Balbir Singh, Gautham R Shenoy,
Venkatesh Pallipadi, Arun Bharadwaj
Cc: linux-arch, linuxppc-dev, linux-kernel
In-Reply-To: <20091006152421.GA7278@linux.vnet.ibm.com>
* Arun R Bharadwaj <arun@linux.vnet.ibm.com> [2009-10-06 20:54:21]:
This patch creates arch/powerpc/platforms/pseries/processor_idle.c,
which implements the cpuidle infrastructure for pseries.
It implements a pseries_cpuidle_loop() which would be the main idle loop
called from cpu_idle(). It makes decision of entering either
dedicated_snooze_loop or dedicated_cede_loop for dedicated lpar and
shared_cede_loop for shared lpar processor based on the
decision taken by the cpuidle governor.
Signed-off-by: Arun R Bharadwaj <arun@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/system.h | 1
arch/powerpc/kernel/sysfs.c | 2
arch/powerpc/platforms/pseries/Makefile | 1
arch/powerpc/platforms/pseries/processor_idle.c | 208 ++++++++++++++++++++++++
arch/powerpc/platforms/pseries/pseries.h | 8
5 files changed, 220 insertions(+)
Index: linux.trees.git/arch/powerpc/platforms/pseries/Makefile
===================================================================
--- linux.trees.git.orig/arch/powerpc/platforms/pseries/Makefile
+++ linux.trees.git/arch/powerpc/platforms/pseries/Makefile
@@ -26,3 +26,4 @@ obj-$(CONFIG_HCALL_STATS) += hvCall_inst
obj-$(CONFIG_PHYP_DUMP) += phyp_dump.o
obj-$(CONFIG_CMM) += cmm.o
obj-$(CONFIG_DTL) += dtl.o
+obj-$(CONFIG_PSERIES_PROCESSOR_IDLE) += processor_idle.o
Index: linux.trees.git/arch/powerpc/platforms/pseries/pseries.h
===================================================================
--- linux.trees.git.orig/arch/powerpc/platforms/pseries/pseries.h
+++ linux.trees.git/arch/powerpc/platforms/pseries/pseries.h
@@ -10,6 +10,8 @@
#ifndef _PSERIES_PSERIES_H
#define _PSERIES_PSERIES_H
+#include <linux/cpuidle.h>
+
extern void __init fw_feature_init(const char *hypertas, unsigned long len);
struct pt_regs;
@@ -40,4 +42,10 @@ extern unsigned long rtas_poweron_auto;
extern void find_udbg_vterm(void);
+DECLARE_PER_CPU(unsigned long, smt_snooze_delay);
+
+#ifdef CONFIG_PSERIES_PROCESSOR_IDLE
+extern struct cpuidle_driver pseries_idle_driver;
+#endif
+
#endif /* _PSERIES_PSERIES_H */
Index: linux.trees.git/arch/powerpc/platforms/pseries/processor_idle.c
===================================================================
--- /dev/null
+++ linux.trees.git/arch/powerpc/platforms/pseries/processor_idle.c
@@ -0,0 +1,208 @@
+/*
+ * processor_idle - idle state cpuidle driver.
+ * Adapted from drivers/acpi/processor_idle.c
+ *
+ * Arun R Bharadwaj <arun@linux.vnet.ibm.com>
+ *
+ * Copyright (C) 2009 IBM Corporation.
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/moduleparam.h>
+#include <linux/cpuidle.h>
+
+#include <asm/paca.h>
+#include <asm/reg.h>
+#include <asm/system.h>
+#include <asm/machdep.h>
+#include <asm/firmware.h>
+
+#include "plpar_wrappers.h"
+#include "pseries.h"
+
+MODULE_AUTHOR("Arun R Bharadwaj");
+MODULE_DESCRIPTION("pSeries Idle State Driver");
+MODULE_LICENSE("GPL");
+
+struct cpuidle_driver pseries_idle_driver = {
+ .name = "pseries_idle",
+ .owner = THIS_MODULE,
+};
+
+DEFINE_PER_CPU(struct cpuidle_device, pseries_dev);
+
+#define IDLE_STATE_COUNT 2
+
+/* pSeries Idle state Flags */
+#define PSERIES_DEDICATED_SNOOZE (0x01)
+#define PSERIES_DEDICATED_CEDE (0x02)
+#define PSERIES_SHARED_CEDE (0x03)
+
+static int pseries_idle_init(struct cpuidle_device *dev)
+{
+ return cpuidle_register_device(dev);
+}
+
+static void shared_cede_loop(void)
+{
+ get_lppaca()->idle = 1;
+ cede_processor();
+ get_lppaca()->idle = 0;
+}
+
+static void dedicated_snooze_loop(void)
+{
+ local_irq_enable();
+ set_thread_flag(TIF_POLLING_NRFLAG);
+ while (!need_resched()) {
+ ppc64_runlatch_off();
+ HMT_low();
+ HMT_very_low();
+ }
+ HMT_medium();
+ clear_thread_flag(TIF_POLLING_NRFLAG);
+ smp_mb();
+ local_irq_disable();
+}
+
+static void dedicated_cede_loop(void)
+{
+ ppc64_runlatch_off();
+ HMT_medium();
+ cede_processor();
+}
+
+static int pseries_cpuidle_loop(struct cpuidle_device *dev,
+ struct cpuidle_state *st)
+{
+ ktime_t t1, t2;
+ s64 diff;
+ int ret;
+ unsigned long in_purr, out_purr;
+
+ get_lppaca()->idle = 1;
+ get_lppaca()->donate_dedicated_cpu = 1;
+ in_purr = mfspr(SPRN_PURR);
+
+ t1 = ktime_get();
+
+ if (st->flags & PSERIES_SHARED_CEDE)
+ shared_cede_loop();
+ else if (st->flags & PSERIES_DEDICATED_SNOOZE)
+ dedicated_snooze_loop();
+ else
+ dedicated_cede_loop();
+
+ t2 = ktime_get();
+ diff = ktime_to_us(ktime_sub(t2, t1));
+ if (diff > INT_MAX)
+ diff = INT_MAX;
+
+ ret = (int) diff;
+
+ out_purr = mfspr(SPRN_PURR);
+ get_lppaca()->wait_state_cycles += out_purr - in_purr;
+ get_lppaca()->donate_dedicated_cpu = 0;
+ get_lppaca()->idle = 0;
+
+ return ret;
+}
+
+static int pseries_setup_cpuidle(struct cpuidle_device *dev, int cpu)
+{
+ int i;
+ struct cpuidle_state *state;
+
+ dev->cpu = cpu;
+
+ if (get_lppaca()->shared_proc) {
+ state = &dev->states[0];
+ snprintf(state->name, CPUIDLE_NAME_LEN, "IDLE");
+ state->enter = pseries_cpuidle_loop;
+ strncpy(state->desc, "shared_cede", CPUIDLE_DESC_LEN);
+ state->flags = PSERIES_SHARED_CEDE;
+ state->exit_latency = 0;
+ state->target_residency = 0;
+ return 0;
+ }
+
+ for (i = 0; i < IDLE_STATE_COUNT; i++) {
+ state = &dev->states[i];
+
+ snprintf(state->name, CPUIDLE_NAME_LEN, "CEDE%d", i);
+ state->enter = pseries_cpuidle_loop;
+
+ switch (i) {
+ case 0:
+ strncpy(state->desc, "snooze", CPUIDLE_DESC_LEN);
+ state->flags = PSERIES_DEDICATED_SNOOZE;
+ state->exit_latency = 0;
+ state->target_residency = 0;
+ break;
+
+ case 1:
+ strncpy(state->desc, "cede", CPUIDLE_DESC_LEN);
+ state->flags = PSERIES_DEDICATED_CEDE;
+ state->exit_latency = 1;
+ state->target_residency =
+ __get_cpu_var(smt_snooze_delay);
+ break;
+ }
+ }
+ dev->state_count = IDLE_STATE_COUNT;
+
+ return 0;
+}
+
+void update_smt_snooze_delay(int snooze)
+{
+ int cpu;
+ for_each_online_cpu(cpu)
+ per_cpu(pseries_dev, cpu).states[0].target_residency = snooze;
+}
+
+static int __init pseries_processor_idle_init(void)
+{
+ int cpu;
+ int result = cpuidle_register_driver(&pseries_idle_driver);
+
+ if (result < 0)
+ return result;
+
+ printk(KERN_DEBUG "pSeries idle driver registered\n");
+
+ if (!firmware_has_feature(FW_FEATURE_SPLPAR)) {
+ printk(KERN_DEBUG "Using default idle\n");
+ return 0;
+ }
+
+ for_each_online_cpu(cpu) {
+ pseries_setup_cpuidle(&per_cpu(pseries_dev, cpu), cpu);
+ pseries_idle_init(&per_cpu(pseries_dev, cpu));
+ }
+
+ printk(KERN_DEBUG "Using cpuidle idle loop\n");
+
+ return 0;
+}
+
+late_initcall(pseries_processor_idle_init);
Index: linux.trees.git/arch/powerpc/include/asm/system.h
===================================================================
--- linux.trees.git.orig/arch/powerpc/include/asm/system.h
+++ linux.trees.git/arch/powerpc/include/asm/system.h
@@ -548,6 +548,7 @@ extern void account_system_vtime(struct
extern struct dentry *powerpc_debugfs_root;
void cpu_idle_wait(void);
+extern void update_smt_snooze_delay(int snooze);
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_SYSTEM_H */
Index: linux.trees.git/arch/powerpc/kernel/sysfs.c
===================================================================
--- linux.trees.git.orig/arch/powerpc/kernel/sysfs.c
+++ linux.trees.git/arch/powerpc/kernel/sysfs.c
@@ -18,6 +18,7 @@
#include <asm/machdep.h>
#include <asm/smp.h>
#include <asm/pmc.h>
+#include <asm/system.h>
#include "cacheinfo.h"
@@ -51,6 +52,7 @@ static ssize_t store_smt_snooze_delay(st
return -EINVAL;
per_cpu(smt_snooze_delay, cpu->sysdev.id) = snooze;
+ update_smt_snooze_delay(snooze);
return count;
}
^ permalink raw reply
* [v7 PATCH 6/7]: POWER: add a default_idle idle loop for POWER.
From: Arun R Bharadwaj @ 2009-10-06 15:34 UTC (permalink / raw)
To: Peter Zijlstra, Joel Schopp, Benjamin Herrenschmidt,
Paul Mackerras, Ingo Molnar, Vaidyanathan Srinivasan,
Dipankar Sarma, Balbir Singh, Gautham R Shenoy,
Venkatesh Pallipadi, Arun Bharadwaj
Cc: linux-arch, linuxppc-dev, linux-kernel
In-Reply-To: <20091006152421.GA7278@linux.vnet.ibm.com>
* Arun R Bharadwaj <arun@linux.vnet.ibm.com> [2009-10-06 20:54:21]:
In arch/powerpc/kernel/idle.c create a default_idle() routine by moving
the failover condition of the cpu_idle() idle loop. This is needed by
cpuidle infrastructure to call default_idle when other idle routines
are not yet registered. Functionality remains the same, but the code is
slightly moved around.
Signed-off-by: Arun R Bharadwaj <arun@linux.vnet.ibm.com>
---
arch/powerpc/Kconfig | 3 +++
arch/powerpc/include/asm/system.h | 1 +
arch/powerpc/kernel/idle.c | 6 ++++++
3 files changed, 10 insertions(+)
Index: linux.trees.git/arch/powerpc/Kconfig
===================================================================
--- linux.trees.git.orig/arch/powerpc/Kconfig
+++ linux.trees.git/arch/powerpc/Kconfig
@@ -91,6 +91,9 @@ config ARCH_HAS_ILOG2_U64
config ARCH_HAS_CPU_IDLE_WAIT
def_bool y
+config ARCH_HAS_DEFAULT_IDLE
+ def_bool y
+
config GENERIC_HWEIGHT
bool
default y
Index: linux.trees.git/arch/powerpc/include/asm/system.h
===================================================================
--- linux.trees.git.orig/arch/powerpc/include/asm/system.h
+++ linux.trees.git/arch/powerpc/include/asm/system.h
@@ -218,6 +218,7 @@ extern unsigned long klimit;
extern void *alloc_maybe_bootmem(size_t size, gfp_t mask);
extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask);
+extern void default_idle(void);
extern int powersave_nap; /* set if nap mode can be used in idle loop */
/*
Index: linux.trees.git/arch/powerpc/kernel/idle.c
===================================================================
--- linux.trees.git.orig/arch/powerpc/kernel/idle.c
+++ linux.trees.git/arch/powerpc/kernel/idle.c
@@ -113,6 +113,12 @@ void cpu_idle_wait(void)
}
EXPORT_SYMBOL_GPL(cpu_idle_wait);
+void default_idle(void)
+{
+ HMT_low();
+ HMT_very_low();
+}
+
int powersave_nap;
#ifdef CONFIG_SYSCTL
^ permalink raw reply
* [v7 PATCH 5/7]: pSeries/cpuidle: remove dedicate/shared idle loops, which will be moved to arch/powerpc/platforms/pseries/processor_idle.c.
From: Arun R Bharadwaj @ 2009-10-06 15:33 UTC (permalink / raw)
To: Peter Zijlstra, Joel Schopp, Benjamin Herrenschmidt,
Paul Mackerras, Ingo Molnar, Vaidyanathan Srinivasan,
Dipankar Sarma, Balbir Singh, Gautham R Shenoy,
Venkatesh Pallipadi, Arun Bharadwaj
Cc: linux-arch, linuxppc-dev, linux-kernel
In-Reply-To: <20091006152421.GA7278@linux.vnet.ibm.com>
* Arun R Bharadwaj <arun@linux.vnet.ibm.com> [2009-10-06 20:54:21]:
This patch removes the routines, pseries_shared_idle_sleep and
pseries_dedicated_idle_sleep, since this is implemented as a part
of arch/powerpc/platform/pseries/processor_idle.c
Also, similar to x86, call cpuidle_idle_call from cpu_idle() idle
loop instead of ppc_md.power_save.
Signed-off-by: Arun R Bharadwaj <arun@linux.vnet.ibm.com>
---
arch/powerpc/kernel/idle.c | 50 +++++++-----------
arch/powerpc/platforms/pseries/setup.c | 89 ---------------------------------
2 files changed, 22 insertions(+), 117 deletions(-)
Index: linux.trees.git/arch/powerpc/platforms/pseries/setup.c
===================================================================
--- linux.trees.git.orig/arch/powerpc/platforms/pseries/setup.c
+++ linux.trees.git/arch/powerpc/platforms/pseries/setup.c
@@ -75,9 +75,6 @@ EXPORT_SYMBOL(CMO_PageSize);
int fwnmi_active; /* TRUE if an FWNMI handler is present */
-static void pseries_shared_idle_sleep(void);
-static void pseries_dedicated_idle_sleep(void);
-
static struct device_node *pSeries_mpic_node;
static void pSeries_show_cpuinfo(struct seq_file *m)
@@ -301,18 +298,8 @@ static void __init pSeries_setup_arch(vo
pSeries_nvram_init();
/* Choose an idle loop */
- if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
+ if (firmware_has_feature(FW_FEATURE_SPLPAR))
vpa_init(boot_cpuid);
- if (get_lppaca()->shared_proc) {
- printk(KERN_DEBUG "Using shared processor idle loop\n");
- ppc_md.power_save = pseries_shared_idle_sleep;
- } else {
- printk(KERN_DEBUG "Using dedicated idle loop\n");
- ppc_md.power_save = pseries_dedicated_idle_sleep;
- }
- } else {
- printk(KERN_DEBUG "Using default idle loop\n");
- }
if (firmware_has_feature(FW_FEATURE_LPAR))
ppc_md.enable_pmcs = pseries_lpar_enable_pmcs;
@@ -500,80 +487,6 @@ static int __init pSeries_probe(void)
return 1;
}
-
-DECLARE_PER_CPU(unsigned long, smt_snooze_delay);
-
-static void pseries_dedicated_idle_sleep(void)
-{
- unsigned int cpu = smp_processor_id();
- unsigned long start_snooze;
- unsigned long in_purr, out_purr;
-
- /*
- * Indicate to the HV that we are idle. Now would be
- * a good time to find other work to dispatch.
- */
- get_lppaca()->idle = 1;
- get_lppaca()->donate_dedicated_cpu = 1;
- in_purr = mfspr(SPRN_PURR);
-
- /*
- * We come in with interrupts disabled, and need_resched()
- * has been checked recently. If we should poll for a little
- * while, do so.
- */
- if (__get_cpu_var(smt_snooze_delay)) {
- start_snooze = get_tb() +
- __get_cpu_var(smt_snooze_delay) * tb_ticks_per_usec;
- local_irq_enable();
- set_thread_flag(TIF_POLLING_NRFLAG);
-
- while (get_tb() < start_snooze) {
- if (need_resched() || cpu_is_offline(cpu))
- goto out;
- ppc64_runlatch_off();
- HMT_low();
- HMT_very_low();
- }
-
- HMT_medium();
- clear_thread_flag(TIF_POLLING_NRFLAG);
- smp_mb();
- local_irq_disable();
- if (need_resched() || cpu_is_offline(cpu))
- goto out;
- }
-
- cede_processor();
-
-out:
- HMT_medium();
- out_purr = mfspr(SPRN_PURR);
- get_lppaca()->wait_state_cycles += out_purr - in_purr;
- get_lppaca()->donate_dedicated_cpu = 0;
- get_lppaca()->idle = 0;
-}
-
-static void pseries_shared_idle_sleep(void)
-{
- /*
- * Indicate to the HV that we are idle. Now would be
- * a good time to find other work to dispatch.
- */
- get_lppaca()->idle = 1;
-
- /*
- * Yield the processor to the hypervisor. We return if
- * an external interrupt occurs (which are driven prior
- * to returning here) or if a prod occurs from another
- * processor. When returning here, external interrupts
- * are enabled.
- */
- cede_processor();
-
- get_lppaca()->idle = 0;
-}
-
static int pSeries_pci_probe_mode(struct pci_bus *bus)
{
if (firmware_has_feature(FW_FEATURE_LPAR))
Index: linux.trees.git/arch/powerpc/kernel/idle.c
===================================================================
--- linux.trees.git.orig/arch/powerpc/kernel/idle.c
+++ linux.trees.git/arch/powerpc/kernel/idle.c
@@ -25,6 +25,7 @@
#include <linux/cpu.h>
#include <linux/sysctl.h>
#include <linux/tick.h>
+#include <linux/cpuidle.h>
#include <asm/system.h>
#include <asm/processor.h>
@@ -60,35 +61,26 @@ void cpu_idle(void)
while (!need_resched() && !cpu_should_die()) {
ppc64_runlatch_off();
- if (ppc_md.power_save) {
- clear_thread_flag(TIF_POLLING_NRFLAG);
- /*
- * smp_mb is so clearing of TIF_POLLING_NRFLAG
- * is ordered w.r.t. need_resched() test.
- */
- smp_mb();
- local_irq_disable();
-
- /* Don't trace irqs off for idle */
- stop_critical_timings();
-
- /* check again after disabling irqs */
- if (!need_resched() && !cpu_should_die())
- ppc_md.power_save();
-
- start_critical_timings();
-
- local_irq_enable();
- set_thread_flag(TIF_POLLING_NRFLAG);
-
- } else {
- /*
- * Go into low thread priority and possibly
- * low power mode.
- */
- HMT_low();
- HMT_very_low();
- }
+ clear_thread_flag(TIF_POLLING_NRFLAG);
+ /*
+ * smp_mb is so clearing of TIF_POLLING_NRFLAG
+ * is ordered w.r.t. need_resched() test.
+ */
+ smp_mb();
+ local_irq_disable();
+
+ /* Don't trace irqs off for idle */
+ stop_critical_timings();
+
+ /* check again after disabling irqs */
+ if (!need_resched() && !cpu_should_die())
+ cpuidle_idle_call();
+
+ start_critical_timings();
+
+ local_irq_enable();
+ set_thread_flag(TIF_POLLING_NRFLAG);
+
}
HMT_medium();
^ permalink raw reply
* [v7 PATCH 4/7]: POWER: enable cpuidle for POWER.
From: Arun R Bharadwaj @ 2009-10-06 15:32 UTC (permalink / raw)
To: Peter Zijlstra, Joel Schopp, Benjamin Herrenschmidt,
Paul Mackerras, Ingo Molnar, Vaidyanathan Srinivasan,
Dipankar Sarma, Balbir Singh, Gautham R Shenoy,
Venkatesh Pallipadi, Arun Bharadwaj
Cc: linux-arch, linuxppc-dev, linux-kernel
In-Reply-To: <20091006152421.GA7278@linux.vnet.ibm.com>
* Arun R Bharadwaj <arun@linux.vnet.ibm.com> [2009-10-06 20:54:21]:
This patch enables the cpuidle option in Kconfig for pSeries.
Currently cpuidle infrastructure is enabled only for x86 and ARM.
This code is almost completely borrowed from x86 to enable
cpuidle for pSeries.
Signed-off-by: Arun R Bharadwaj <arun@linux.vnet.ibm.com>
---
arch/powerpc/Kconfig | 17 +++++++++++++++++
arch/powerpc/include/asm/system.h | 2 ++
arch/powerpc/kernel/idle.c | 19 +++++++++++++++++++
3 files changed, 38 insertions(+)
Index: linux.trees.git/arch/powerpc/Kconfig
===================================================================
--- linux.trees.git.orig/arch/powerpc/Kconfig
+++ linux.trees.git/arch/powerpc/Kconfig
@@ -88,6 +88,9 @@ config ARCH_HAS_ILOG2_U64
bool
default y if 64BIT
+config ARCH_HAS_CPU_IDLE_WAIT
+ def_bool y
+
config GENERIC_HWEIGHT
bool
default y
@@ -243,6 +246,20 @@ source "kernel/Kconfig.freezer"
source "arch/powerpc/sysdev/Kconfig"
source "arch/powerpc/platforms/Kconfig"
+menu "Power management options"
+
+source "drivers/cpuidle/Kconfig"
+
+config PSERIES_PROCESSOR_IDLE
+ bool "Idle Power Management Support for pSeries"
+ depends on PPC_PSERIES && CPU_IDLE
+ default y
+ help
+ Idle Power Management Support for pSeries. This hooks onto cpuidle
+ infrastructure to help in idle cpu power management.
+
+endmenu
+
menu "Kernel options"
config HIGHMEM
Index: linux.trees.git/arch/powerpc/include/asm/system.h
===================================================================
--- linux.trees.git.orig/arch/powerpc/include/asm/system.h
+++ linux.trees.git/arch/powerpc/include/asm/system.h
@@ -546,5 +546,7 @@ extern void account_system_vtime(struct
extern struct dentry *powerpc_debugfs_root;
+void cpu_idle_wait(void);
+
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_SYSTEM_H */
Index: linux.trees.git/arch/powerpc/kernel/idle.c
===================================================================
--- linux.trees.git.orig/arch/powerpc/kernel/idle.c
+++ linux.trees.git/arch/powerpc/kernel/idle.c
@@ -102,6 +102,25 @@ void cpu_idle(void)
}
}
+static void do_nothing(void *unused)
+{
+}
+
+/*
+ * cpu_idle_wait - Used to ensure that all the CPUs come out of the old
+ * idle loop and start using the new idle loop.
+ * Required while changing idle handler on SMP systems.
+ * Caller must have changed idle handler to the new value before the call.
+ */
+void cpu_idle_wait(void)
+{
+ /* Ensure that new value of ppc_md.power_save is set */
+ smp_mb();
+ /* kick all the CPUs so that they exit out of ppc_md.power_save */
+ smp_call_function(do_nothing, NULL, 1);
+}
+EXPORT_SYMBOL_GPL(cpu_idle_wait);
+
int powersave_nap;
#ifdef CONFIG_SYSCTL
^ permalink raw reply
* [v7 PATCH 3/7]: x86: refactor x86 idle power management code and remove all instances of pm_idle.
From: Arun R Bharadwaj @ 2009-10-06 15:31 UTC (permalink / raw)
To: Peter Zijlstra, Joel Schopp, Benjamin Herrenschmidt,
Paul Mackerras, Ingo Molnar, Vaidyanathan Srinivasan,
Dipankar Sarma, Balbir Singh, Gautham R Shenoy,
Venkatesh Pallipadi, Arun Bharadwaj
Cc: linux-arch, linuxppc-dev, linux-kernel
In-Reply-To: <20091006152421.GA7278@linux.vnet.ibm.com>
* Arun R Bharadwaj <arun@linux.vnet.ibm.com> [2009-10-06 20:54:21]:
This patch cleans up x86 of all instances of pm_idle.
pm_idle which was earlier called from cpu_idle() idle loop
is replaced by cpuidle_idle_call.
x86 also registers to cpuidle when the idle routine is selected,
by populating the cpuidle_device data structure for each cpu.
This is replicated for apm module and for xen, which also used pm_idle.
Signed-off-by: Arun R Bharadwaj <arun@linux.vnet.ibm.com>
---
arch/x86/kernel/apm_32.c | 37 ++++++++++++++++++--
arch/x86/kernel/process.c | 79 ++++++++++++++++++++++++++++++++-----------
arch/x86/kernel/process_32.c | 3 +
arch/x86/kernel/process_64.c | 3 +
arch/x86/xen/setup.c | 22 +++++++++++
5 files changed, 118 insertions(+), 26 deletions(-)
Index: linux.trees.git/arch/x86/kernel/process.c
===================================================================
--- linux.trees.git.orig/arch/x86/kernel/process.c
+++ linux.trees.git/arch/x86/kernel/process.c
@@ -9,6 +9,7 @@
#include <linux/pm.h>
#include <linux/clockchips.h>
#include <linux/random.h>
+#include <linux/cpuidle.h>
#include <trace/events/power.h>
#include <asm/system.h>
#include <asm/apic.h>
@@ -244,12 +245,6 @@ int sys_vfork(struct pt_regs *regs)
unsigned long boot_option_idle_override = 0;
EXPORT_SYMBOL(boot_option_idle_override);
-/*
- * Powermanagement idle function, if any..
- */
-void (*pm_idle)(void);
-EXPORT_SYMBOL(pm_idle);
-
#ifdef CONFIG_X86_32
/*
* This halt magic was a workaround for ancient floppy DMA
@@ -329,17 +324,15 @@ static void do_nothing(void *unused)
}
/*
- * cpu_idle_wait - Used to ensure that all the CPUs discard old value of
- * pm_idle and update to new pm_idle value. Required while changing pm_idle
- * handler on SMP systems.
+ * cpu_idle_wait - Required while changing idle routine handler on SMP systems.
*
- * Caller must have changed pm_idle to the new value before the call. Old
- * pm_idle value will not be used by any CPU after the return of this function.
+ * Caller must have changed idle routine to the new value before the call. Old
+ * value will not be used by any CPU after the return of this function.
*/
void cpu_idle_wait(void)
{
smp_mb();
- /* kick all the CPUs so that they exit out of pm_idle */
+ /* kick all the CPUs so that they exit out of idle loop */
smp_call_function(do_nothing, NULL, 1);
}
EXPORT_SYMBOL_GPL(cpu_idle_wait);
@@ -518,15 +511,59 @@ static void c1e_idle(void)
default_idle();
}
+static void (*local_idle)(void);
+DEFINE_PER_CPU(struct cpuidle_device, idle_devices);
+
+struct cpuidle_driver cpuidle_default_driver = {
+ .name = "cpuidle_default",
+};
+
+static int local_idle_loop(struct cpuidle_device *dev, struct cpuidle_state *st)
+{
+ ktime_t t1, t2;
+ s64 diff;
+ int ret;
+
+ t1 = ktime_get();
+ local_idle();
+ t2 = ktime_get();
+
+ diff = ktime_to_us(ktime_sub(t2, t1));
+ if (diff > INT_MAX)
+ diff = INT_MAX;
+ ret = (int) diff;
+
+ return ret;
+}
+
+static int setup_cpuidle_simple(void)
+{
+ struct cpuidle_device *dev;
+ int cpu;
+
+ if (!cpuidle_curr_driver)
+ cpuidle_register_driver(&cpuidle_default_driver);
+
+ for_each_online_cpu(cpu) {
+ dev = &per_cpu(idle_devices, cpu);
+ dev->cpu = cpu;
+ dev->states[0].enter = local_idle_loop;
+ dev->state_count = 1;
+ cpuidle_register_device(dev);
+ }
+ return 0;
+}
+device_initcall(setup_cpuidle_simple);
+
void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
{
#ifdef CONFIG_SMP
- if (pm_idle == poll_idle && smp_num_siblings > 1) {
+ if (local_idle == poll_idle && smp_num_siblings > 1) {
printk(KERN_WARNING "WARNING: polling idle and HT enabled,"
" performance may degrade.\n");
}
#endif
- if (pm_idle)
+ if (local_idle)
return;
if (cpu_has(c, X86_FEATURE_MWAIT) && mwait_usable(c)) {
@@ -534,18 +571,20 @@ void __cpuinit select_idle_routine(const
* One CPU supports mwait => All CPUs supports mwait
*/
printk(KERN_INFO "using mwait in idle threads.\n");
- pm_idle = mwait_idle;
+ local_idle = mwait_idle;
} else if (check_c1e_idle(c)) {
printk(KERN_INFO "using C1E aware idle routine\n");
- pm_idle = c1e_idle;
+ local_idle = c1e_idle;
} else
- pm_idle = default_idle;
+ local_idle = default_idle;
+
+ return;
}
void __init init_c1e_mask(void)
{
/* If we're using c1e_idle, we need to allocate c1e_mask. */
- if (pm_idle == c1e_idle)
+ if (local_idle == c1e_idle)
zalloc_cpumask_var(&c1e_mask, GFP_KERNEL);
}
@@ -556,7 +595,7 @@ static int __init idle_setup(char *str)
if (!strcmp(str, "poll")) {
printk("using polling idle threads.\n");
- pm_idle = poll_idle;
+ local_idle = poll_idle;
} else if (!strcmp(str, "mwait"))
force_mwait = 1;
else if (!strcmp(str, "halt")) {
@@ -567,7 +606,7 @@ static int __init idle_setup(char *str)
* To continue to load the CPU idle driver, don't touch
* the boot_option_idle_override.
*/
- pm_idle = default_idle;
+ local_idle = default_idle;
idle_halt = 1;
return 0;
} else if (!strcmp(str, "nomwait")) {
Index: linux.trees.git/arch/x86/kernel/process_32.c
===================================================================
--- linux.trees.git.orig/arch/x86/kernel/process_32.c
+++ linux.trees.git/arch/x86/kernel/process_32.c
@@ -40,6 +40,7 @@
#include <linux/uaccess.h>
#include <linux/io.h>
#include <linux/kdebug.h>
+#include <linux/cpuidle.h>
#include <asm/pgtable.h>
#include <asm/system.h>
@@ -113,7 +114,7 @@ void cpu_idle(void)
local_irq_disable();
/* Don't trace irqs off for idle */
stop_critical_timings();
- pm_idle();
+ cpuidle_idle_call();
start_critical_timings();
}
tick_nohz_restart_sched_tick();
Index: linux.trees.git/arch/x86/kernel/process_64.c
===================================================================
--- linux.trees.git.orig/arch/x86/kernel/process_64.c
+++ linux.trees.git/arch/x86/kernel/process_64.c
@@ -39,6 +39,7 @@
#include <linux/io.h>
#include <linux/ftrace.h>
#include <linux/dmi.h>
+#include <linux/cpuidle.h>
#include <asm/pgtable.h>
#include <asm/system.h>
@@ -142,7 +143,7 @@ void cpu_idle(void)
enter_idle();
/* Don't trace irqs off for idle */
stop_critical_timings();
- pm_idle();
+ cpuidle_idle_call();
start_critical_timings();
/* In many cases the interrupt that ended idle
has already called exit_idle. But some idle
Index: linux.trees.git/arch/x86/kernel/apm_32.c
===================================================================
--- linux.trees.git.orig/arch/x86/kernel/apm_32.c
+++ linux.trees.git/arch/x86/kernel/apm_32.c
@@ -2257,6 +2257,38 @@ static struct dmi_system_id __initdata a
{ }
};
+DEFINE_PER_CPU(struct cpuidle_device, apm_idle_devices);
+
+struct cpuidle_driver cpuidle_apm_driver = {
+ .name = "cpuidle_apm",
+};
+
+void __cpuinit setup_cpuidle_apm(void)
+{
+ struct cpuidle_device *dev;
+
+ if (!cpuidle_curr_driver)
+ cpuidle_register_driver(&cpuidle_apm_driver);
+
+ dev = &per_cpu(apm_idle_devices, smp_processor_id());
+ dev->cpu = smp_processor_id();
+ dev->states[0].enter = apm_cpu_idle;
+ dev->state_count = 1;
+ cpuidle_register_device(dev);
+}
+
+void exit_cpuidle_apm(void)
+{
+ struct cpuidle_device *dev;
+ int cpu;
+
+ for_each_online_cpu(cpu) {
+ dev = &per_cpu(apm_idle_devices, cpu);
+ cpuidle_unregister_device(dev);
+ }
+}
+
+
/*
* Just start the APM thread. We do NOT want to do APM BIOS
* calls from anything but the APM thread, if for no other reason
@@ -2394,8 +2426,7 @@ static int __init apm_init(void)
if (HZ != 100)
idle_period = (idle_period * HZ) / 100;
if (idle_threshold < 100) {
- original_pm_idle = pm_idle;
- pm_idle = apm_cpu_idle;
+ setup_cpuidle_apm();
set_pm_idle = 1;
}
@@ -2407,7 +2438,7 @@ static void __exit apm_exit(void)
int error;
if (set_pm_idle) {
- pm_idle = original_pm_idle;
+ exit_cpuidle_apm();
/*
* We are about to unload the current idle thread pm callback
* (pm_idle), Wait for all processors to update cached/local
Index: linux.trees.git/arch/x86/xen/setup.c
===================================================================
--- linux.trees.git.orig/arch/x86/xen/setup.c
+++ linux.trees.git/arch/x86/xen/setup.c
@@ -8,6 +8,7 @@
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/pm.h>
+#include <linux/cpuidle.h>
#include <asm/elf.h>
#include <asm/vdso.h>
@@ -151,6 +152,25 @@ void __cpuinit xen_enable_syscall(void)
#endif /* CONFIG_X86_64 */
}
+DEFINE_PER_CPU(struct cpuidle_device, xen_idle_devices);
+struct cpuidle_driver cpuidle_xen_driver = {
+ .name = "cpuidle_xen",
+};
+
+void __cpuinit setup_cpuidle_xen(void)
+{
+ struct cpuidle_device *dev;
+
+ if (!cpuidle_curr_driver)
+ cpuidle_register_driver(&cpuidle_xen_driver);
+
+ dev = &per_cpu(xen_idle_devices, smp_processor_id());
+ dev->cpu = smp_processor_id();
+ dev->states[0].enter = xen_idle;
+ dev->state_count = 1;
+ cpuidle_register_device(dev);
+}
+
void __init xen_arch_setup(void)
{
struct physdev_set_iopl set_iopl;
@@ -186,7 +206,7 @@ void __init xen_arch_setup(void)
MAX_GUEST_CMDLINE > COMMAND_LINE_SIZE ?
COMMAND_LINE_SIZE : MAX_GUEST_CMDLINE);
- pm_idle = xen_idle;
+ setup_cpuidle_xen();
paravirt_disable_iospace();
^ permalink raw reply
* [v7 PATCH 2/7]: cpuidle: implement a list based approach to register a set of idle routines.
From: Arun R Bharadwaj @ 2009-10-06 15:30 UTC (permalink / raw)
To: Peter Zijlstra, Joel Schopp, Benjamin Herrenschmidt,
Paul Mackerras, Ingo Molnar, Vaidyanathan Srinivasan,
Dipankar Sarma, Balbir Singh, Gautham R Shenoy,
Venkatesh Pallipadi, Arun Bharadwaj
Cc: linux-arch, linuxppc-dev, linux-kernel
In-Reply-To: <20091006152421.GA7278@linux.vnet.ibm.com>
* Arun R Bharadwaj <arun@linux.vnet.ibm.com> [2009-10-06 20:54:21]:
Implement a list based registering mechanism for architectures which
have multiple sets of idle routines which are to be registered.
Currently, in x86 it is done by merely setting pm_idle = idle_routine
and managing this pm_idle pointer is messy.
To give an example of how this mechanism works:
In x86, initially, idle routine is selected from the set of poll/mwait/
c1e/default idle loops. So the selected idle loop is registered in cpuidle
as one idle state cpuidle devices. Once ACPI comes up, it registers
another set of idle states on top of this state. Again, suppose a module
registers another set of idle loops, it is added to this list.
This provides a clean way of registering and unregistering idle state
routines.
In the current implementation, pm_idle is set as the current idle routine
being used and the old idle routine has to be maintained and when a module
registers/unregisters an idle routine, confusion arises.
Signed-off-by: Arun R Bharadwaj <arun@linux.vnet.ibm.com>
---
drivers/cpuidle/cpuidle.c | 54 ++++++++++++++++++++++++++++++++++++++++------
include/linux/cpuidle.h | 1
2 files changed, 48 insertions(+), 7 deletions(-)
Index: linux.trees.git/drivers/cpuidle/cpuidle.c
===================================================================
--- linux.trees.git.orig/drivers/cpuidle/cpuidle.c
+++ linux.trees.git/drivers/cpuidle/cpuidle.c
@@ -22,6 +22,7 @@
#include "cpuidle.h"
DEFINE_PER_CPU(struct cpuidle_device *, cpuidle_devices);
+DEFINE_PER_CPU(struct list_head, cpuidle_devices_list);
DEFINE_MUTEX(cpuidle_lock);
@@ -112,6 +113,45 @@ void cpuidle_resume_and_unlock(void)
EXPORT_SYMBOL_GPL(cpuidle_resume_and_unlock);
+int cpuidle_add_to_list(struct cpuidle_device *dev)
+{
+ int ret, cpu = dev->cpu;
+ struct cpuidle_device *old_dev;
+
+ if (!list_empty(&per_cpu(cpuidle_devices_list, cpu))) {
+ old_dev = list_first_entry(&per_cpu(cpuidle_devices_list, cpu),
+ struct cpuidle_device, idle_list);
+ cpuidle_remove_state_sysfs(old_dev);
+ }
+
+ list_add(&dev->idle_list, &per_cpu(cpuidle_devices_list, cpu));
+ ret = cpuidle_add_state_sysfs(dev);
+ return ret;
+}
+
+void cpuidle_remove_from_list(struct cpuidle_device *dev)
+{
+ struct cpuidle_device *temp_dev;
+ struct list_head *pos;
+ int ret, cpu = dev->cpu;
+
+ list_for_each(pos, &per_cpu(cpuidle_devices_list, cpu)) {
+ temp_dev = container_of(pos, struct cpuidle_device, idle_list);
+ if (dev == temp_dev) {
+ list_del(&temp_dev->idle_list);
+ cpuidle_remove_state_sysfs(temp_dev);
+ break;
+ }
+ }
+
+ if (!list_empty(&per_cpu(cpuidle_devices_list, cpu))) {
+ temp_dev = list_first_entry(&per_cpu(cpuidle_devices_list, cpu),
+ struct cpuidle_device, idle_list);
+ ret = cpuidle_add_state_sysfs(temp_dev);
+ }
+ cpuidle_kick_cpus();
+}
+
/**
* cpuidle_enable_device - enables idle PM for a CPU
* @dev: the CPU
@@ -136,9 +176,6 @@ int cpuidle_enable_device(struct cpuidle
return ret;
}
- if ((ret = cpuidle_add_state_sysfs(dev)))
- return ret;
-
if (cpuidle_curr_governor->enable &&
(ret = cpuidle_curr_governor->enable(dev)))
goto fail_sysfs;
@@ -157,7 +194,7 @@ int cpuidle_enable_device(struct cpuidle
return 0;
fail_sysfs:
- cpuidle_remove_state_sysfs(dev);
+ cpuidle_remove_from_list(dev);
return ret;
}
@@ -182,8 +219,6 @@ void cpuidle_disable_device(struct cpuid
if (cpuidle_curr_governor->disable)
cpuidle_curr_governor->disable(dev);
-
- cpuidle_remove_state_sysfs(dev);
}
EXPORT_SYMBOL_GPL(cpuidle_disable_device);
@@ -267,6 +302,7 @@ int cpuidle_register_device(struct cpuid
}
cpuidle_enable_device(dev);
+ cpuidle_add_to_list(dev);
mutex_unlock(&cpuidle_lock);
@@ -288,6 +324,7 @@ void cpuidle_unregister_device(struct cp
cpuidle_pause_and_lock();
cpuidle_disable_device(dev);
+ cpuidle_remove_from_list(dev);
per_cpu(cpuidle_devices, dev->cpu) = NULL;
@@ -338,12 +375,15 @@ static inline void latency_notifier_init
*/
static int __init cpuidle_init(void)
{
- int ret;
+ int ret, cpu;
ret = cpuidle_add_class_sysfs(&cpu_sysdev_class);
if (ret)
return ret;
+ for_each_possible_cpu(cpu)
+ INIT_LIST_HEAD(&per_cpu(cpuidle_devices_list, cpu));
+
latency_notifier_init(&cpuidle_latency_notifier);
return 0;
Index: linux.trees.git/include/linux/cpuidle.h
===================================================================
--- linux.trees.git.orig/include/linux/cpuidle.h
+++ linux.trees.git/include/linux/cpuidle.h
@@ -92,6 +92,7 @@ struct cpuidle_device {
struct cpuidle_state_kobj *kobjs[CPUIDLE_STATE_MAX];
struct cpuidle_state *last_state;
+ struct list_head idle_list;
struct kobject kobj;
struct completion kobj_unregister;
void *governor_data;
^ permalink raw reply
* [v7 PATCH 1/7]: cpuidle: cleanup drivers/cpuidle/cpuidle.c
From: Arun R Bharadwaj @ 2009-10-06 15:26 UTC (permalink / raw)
To: Peter Zijlstra, Joel Schopp, Benjamin Herrenschmidt,
Paul Mackerras, Ingo Molnar, Vaidyanathan Srinivasan,
Dipankar Sarma, Balbir Singh, Gautham R Shenoy,
Venkatesh Pallipadi, Arun Bharadwaj
Cc: linux-arch, linuxppc-dev, linux-kernel
In-Reply-To: <20091006152421.GA7278@linux.vnet.ibm.com>
* Arun R Bharadwaj <arun@linux.vnet.ibm.com> [2009-10-06 20:54:21]:
This patch cleans up drivers/cpuidle/cpuidle.c
Earlier cpuidle assumed pm_idle as the default idle loop. Break that
assumption and make it more generic. cpuidle_idle_call() which is the
main idle loop of cpuidle is to be called by architectures which have
registered to cpuidle.
Remove routines cpuidle_install/uninstall_idle_handler() and
cpuidle_kick_cpus() which are not needed anymore.
Signed-off-by: Arun R Bharadwaj <arun@linux.vnet.ibm.com>
---
drivers/cpuidle/cpuidle.c | 62 +++++----------------------------------------
drivers/cpuidle/cpuidle.h | 6 +---
drivers/cpuidle/driver.c | 4 --
drivers/cpuidle/governor.c | 13 +++------
drivers/cpuidle/sysfs.c | 34 +++++++++++++-----------
include/linux/cpuidle.h | 4 ++
6 files changed, 37 insertions(+), 86 deletions(-)
Index: linux.trees.git/drivers/cpuidle/cpuidle.c
===================================================================
--- linux.trees.git.orig/drivers/cpuidle/cpuidle.c
+++ linux.trees.git/drivers/cpuidle/cpuidle.c
@@ -24,10 +24,6 @@
DEFINE_PER_CPU(struct cpuidle_device *, cpuidle_devices);
DEFINE_MUTEX(cpuidle_lock);
-LIST_HEAD(cpuidle_detected_devices);
-static void (*pm_idle_old)(void);
-
-static int enabled_devices;
#if defined(CONFIG_ARCH_HAS_CPU_IDLE_WAIT)
static void cpuidle_kick_cpus(void)
@@ -47,7 +43,7 @@ static int __cpuidle_register_device(str
*
* NOTE: no locks or semaphores should be used here
*/
-static void cpuidle_idle_call(void)
+void cpuidle_idle_call(void)
{
struct cpuidle_device *dev = __get_cpu_var(cpuidle_devices);
struct cpuidle_state *target_state;
@@ -55,13 +51,10 @@ static void cpuidle_idle_call(void)
/* check if the device is ready */
if (!dev || !dev->enabled) {
- if (pm_idle_old)
- pm_idle_old();
- else
#if defined(CONFIG_ARCH_HAS_DEFAULT_IDLE)
- default_idle();
+ default_idle();
#else
- local_irq_enable();
+ local_irq_enable();
#endif
return;
}
@@ -75,7 +68,11 @@ static void cpuidle_idle_call(void)
hrtimer_peek_ahead_timers();
#endif
/* ask the governor for the next state */
- next_state = cpuidle_curr_governor->select(dev);
+ if (dev->state_count > 1)
+ next_state = cpuidle_curr_governor->select(dev);
+ else
+ next_state = 0;
+
if (need_resched())
return;
target_state = &dev->states[next_state];
@@ -96,35 +93,11 @@ static void cpuidle_idle_call(void)
}
/**
- * cpuidle_install_idle_handler - installs the cpuidle idle loop handler
- */
-void cpuidle_install_idle_handler(void)
-{
- if (enabled_devices && (pm_idle != cpuidle_idle_call)) {
- /* Make sure all changes finished before we switch to new idle */
- smp_wmb();
- pm_idle = cpuidle_idle_call;
- }
-}
-
-/**
- * cpuidle_uninstall_idle_handler - uninstalls the cpuidle idle loop handler
- */
-void cpuidle_uninstall_idle_handler(void)
-{
- if (enabled_devices && pm_idle_old && (pm_idle != pm_idle_old)) {
- pm_idle = pm_idle_old;
- cpuidle_kick_cpus();
- }
-}
-
-/**
* cpuidle_pause_and_lock - temporarily disables CPUIDLE
*/
void cpuidle_pause_and_lock(void)
{
mutex_lock(&cpuidle_lock);
- cpuidle_uninstall_idle_handler();
}
EXPORT_SYMBOL_GPL(cpuidle_pause_and_lock);
@@ -134,7 +107,6 @@ EXPORT_SYMBOL_GPL(cpuidle_pause_and_lock
*/
void cpuidle_resume_and_unlock(void)
{
- cpuidle_install_idle_handler();
mutex_unlock(&cpuidle_lock);
}
@@ -182,7 +154,6 @@ int cpuidle_enable_device(struct cpuidle
dev->enabled = 1;
- enabled_devices++;
return 0;
fail_sysfs:
@@ -213,7 +184,6 @@ void cpuidle_disable_device(struct cpuid
cpuidle_curr_governor->disable(dev);
cpuidle_remove_state_sysfs(dev);
- enabled_devices--;
}
EXPORT_SYMBOL_GPL(cpuidle_disable_device);
@@ -266,7 +236,6 @@ static void poll_idle_init(struct cpuidl
*/
static int __cpuidle_register_device(struct cpuidle_device *dev)
{
- int ret;
struct sys_device *sys_dev = get_cpu_sysdev((unsigned long)dev->cpu);
if (!sys_dev)
@@ -274,16 +243,9 @@ static int __cpuidle_register_device(str
if (!try_module_get(cpuidle_curr_driver->owner))
return -EINVAL;
- init_completion(&dev->kobj_unregister);
-
poll_idle_init(dev);
per_cpu(cpuidle_devices, dev->cpu) = dev;
- list_add(&dev->device_list, &cpuidle_detected_devices);
- if ((ret = cpuidle_add_sysfs(sys_dev))) {
- module_put(cpuidle_curr_driver->owner);
- return ret;
- }
dev->registered = 1;
return 0;
@@ -305,7 +267,6 @@ int cpuidle_register_device(struct cpuid
}
cpuidle_enable_device(dev);
- cpuidle_install_idle_handler();
mutex_unlock(&cpuidle_lock);
@@ -321,8 +282,6 @@ EXPORT_SYMBOL_GPL(cpuidle_register_devic
*/
void cpuidle_unregister_device(struct cpuidle_device *dev)
{
- struct sys_device *sys_dev = get_cpu_sysdev((unsigned long)dev->cpu);
-
if (dev->registered == 0)
return;
@@ -330,9 +289,6 @@ void cpuidle_unregister_device(struct cp
cpuidle_disable_device(dev);
- cpuidle_remove_sysfs(sys_dev);
- list_del(&dev->device_list);
- wait_for_completion(&dev->kobj_unregister);
per_cpu(cpuidle_devices, dev->cpu) = NULL;
cpuidle_resume_and_unlock();
@@ -384,8 +340,6 @@ static int __init cpuidle_init(void)
{
int ret;
- pm_idle_old = pm_idle;
-
ret = cpuidle_add_class_sysfs(&cpu_sysdev_class);
if (ret)
return ret;
Index: linux.trees.git/drivers/cpuidle/governor.c
===================================================================
--- linux.trees.git.orig/drivers/cpuidle/governor.c
+++ linux.trees.git/drivers/cpuidle/governor.c
@@ -43,16 +43,14 @@ static struct cpuidle_governor * __cpuid
*/
int cpuidle_switch_governor(struct cpuidle_governor *gov)
{
- struct cpuidle_device *dev;
+ int cpu;
if (gov == cpuidle_curr_governor)
return 0;
- cpuidle_uninstall_idle_handler();
-
if (cpuidle_curr_governor) {
- list_for_each_entry(dev, &cpuidle_detected_devices, device_list)
- cpuidle_disable_device(dev);
+ for_each_online_cpu(cpu)
+ cpuidle_disable_device(per_cpu(cpuidle_devices, cpu));
module_put(cpuidle_curr_governor->owner);
}
@@ -61,9 +59,8 @@ int cpuidle_switch_governor(struct cpuid
if (gov) {
if (!try_module_get(cpuidle_curr_governor->owner))
return -EINVAL;
- list_for_each_entry(dev, &cpuidle_detected_devices, device_list)
- cpuidle_enable_device(dev);
- cpuidle_install_idle_handler();
+ for_each_online_cpu(cpu)
+ cpuidle_enable_device(per_cpu(cpuidle_devices, cpu));
printk(KERN_INFO "cpuidle: using governor %s\n", gov->name);
}
Index: linux.trees.git/include/linux/cpuidle.h
===================================================================
--- linux.trees.git.orig/include/linux/cpuidle.h
+++ linux.trees.git/include/linux/cpuidle.h
@@ -92,7 +92,6 @@ struct cpuidle_device {
struct cpuidle_state_kobj *kobjs[CPUIDLE_STATE_MAX];
struct cpuidle_state *last_state;
- struct list_head device_list;
struct kobject kobj;
struct completion kobj_unregister;
void *governor_data;
@@ -112,6 +111,9 @@ static inline int cpuidle_get_last_resid
return dev->last_residency;
}
+extern void cpuidle_idle_call(void);
+extern struct cpuidle_driver *cpuidle_curr_driver;
+
/****************************
* CPUIDLE DRIVER INTERFACE *
Index: linux.trees.git/drivers/cpuidle/cpuidle.h
===================================================================
--- linux.trees.git.orig/drivers/cpuidle/cpuidle.h
+++ linux.trees.git/drivers/cpuidle/cpuidle.h
@@ -9,9 +9,7 @@
/* For internal use only */
extern struct cpuidle_governor *cpuidle_curr_governor;
-extern struct cpuidle_driver *cpuidle_curr_driver;
extern struct list_head cpuidle_governors;
-extern struct list_head cpuidle_detected_devices;
extern struct mutex cpuidle_lock;
extern spinlock_t cpuidle_driver_lock;
@@ -27,7 +25,7 @@ extern int cpuidle_add_class_sysfs(struc
extern void cpuidle_remove_class_sysfs(struct sysdev_class *cls);
extern int cpuidle_add_state_sysfs(struct cpuidle_device *device);
extern void cpuidle_remove_state_sysfs(struct cpuidle_device *device);
-extern int cpuidle_add_sysfs(struct sys_device *sysdev);
-extern void cpuidle_remove_sysfs(struct sys_device *sysdev);
+extern int cpuidle_add_sysfs(struct cpuidle_device *device);
+extern void cpuidle_remove_sysfs(struct cpuidle_device *device);
#endif /* __DRIVER_CPUIDLE_H */
Index: linux.trees.git/drivers/cpuidle/sysfs.c
===================================================================
--- linux.trees.git.orig/drivers/cpuidle/sysfs.c
+++ linux.trees.git/drivers/cpuidle/sysfs.c
@@ -311,6 +311,13 @@ int cpuidle_add_state_sysfs(struct cpuid
int i, ret = -ENOMEM;
struct cpuidle_state_kobj *kobj;
+ init_completion(&device->kobj_unregister);
+
+ ret = cpuidle_add_sysfs(device);
+ if (ret) {
+ module_put(cpuidle_curr_driver->owner);
+ return ret;
+ }
/* state statistics */
for (i = 0; i < device->state_count; i++) {
kobj = kzalloc(sizeof(struct cpuidle_state_kobj), GFP_KERNEL);
@@ -347,35 +354,32 @@ void cpuidle_remove_state_sysfs(struct c
for (i = 0; i < device->state_count; i++)
cpuidle_free_state_kobj(device, i);
+
+ cpuidle_remove_sysfs(device);
}
/**
* cpuidle_add_sysfs - creates a sysfs instance for the target device
- * @sysdev: the target device
+ * @device: the target device
*/
-int cpuidle_add_sysfs(struct sys_device *sysdev)
+int cpuidle_add_sysfs(struct cpuidle_device *device)
{
- int cpu = sysdev->id;
- struct cpuidle_device *dev;
int error;
+ struct sys_device *sysdev = get_cpu_sysdev((unsigned long)device->cpu);
- dev = per_cpu(cpuidle_devices, cpu);
- error = kobject_init_and_add(&dev->kobj, &ktype_cpuidle, &sysdev->kobj,
- "cpuidle");
+ error = kobject_init_and_add(&device->kobj, &ktype_cpuidle,
+ &sysdev->kobj, "cpuidle");
if (!error)
- kobject_uevent(&dev->kobj, KOBJ_ADD);
+ kobject_uevent(&device->kobj, KOBJ_ADD);
return error;
}
/**
* cpuidle_remove_sysfs - deletes a sysfs instance on the target device
- * @sysdev: the target device
+ * @device: the target device
*/
-void cpuidle_remove_sysfs(struct sys_device *sysdev)
+void cpuidle_remove_sysfs(struct cpuidle_device *device)
{
- int cpu = sysdev->id;
- struct cpuidle_device *dev;
-
- dev = per_cpu(cpuidle_devices, cpu);
- kobject_put(&dev->kobj);
+ kobject_put(&device->kobj);
+ wait_for_completion(&device->kobj_unregister);
}
Index: linux.trees.git/drivers/cpuidle/driver.c
===================================================================
--- linux.trees.git.orig/drivers/cpuidle/driver.c
+++ linux.trees.git/drivers/cpuidle/driver.c
@@ -27,10 +27,6 @@ int cpuidle_register_driver(struct cpuid
return -EINVAL;
spin_lock(&cpuidle_driver_lock);
- if (cpuidle_curr_driver) {
- spin_unlock(&cpuidle_driver_lock);
- return -EBUSY;
- }
cpuidle_curr_driver = drv;
spin_unlock(&cpuidle_driver_lock);
^ permalink raw reply
* [v7 PATCH 0/7]: cpuidle/x86/POWER: Cleanup idle power management code in x86, cleanup drivers/cpuidle/cpuidle.c and introduce cpuidle to POWER.
From: Arun R Bharadwaj @ 2009-10-06 15:24 UTC (permalink / raw)
To: Peter Zijlstra, Joel Schopp, Benjamin Herrenschmidt,
Paul Mackerras, Ingo Molnar, Vaidyanathan Srinivasan,
Dipankar Sarma, Balbir Singh, Gautham R Shenoy,
Venkatesh Pallipadi, Arun Bharadwaj
Cc: linux-arch, linuxppc-dev, linux-kernel
Hi
Please consider this for inclusion into the testing tree.
This patchset introduces cpuidle infrastructure to POWER, prototyping
for pSeries, and also does a major refactoring of current x86 idle
power management and a cleanup of cpuidle infrastructure.
Earlier discussions on the same can be found at:
v6 --> http://lkml.org/lkml/2009/9/22/180
v5 --> http://lkml.org/lkml/2009/9/22/26
v4 --> http://lkml.org/lkml/2009/9/1/133
v3 --> http://lkml.org/lkml/2009/8/27/124
v2 --> http://lkml.org/lkml/2009/8/26/233
v1 --> http://lkml.org/lkml/2009/8/19/150
Changes in this version:
-----------------------------------------
* Earlier implementation maintained a list of cpuidle devices and
the list was traversed to disable and enable the cpuidle devices
when switching governors. This list is not necessary and is removed.
Now, we get the per cpu structure cpuidle_devices and disable and
enable it for each online cpu while switching governors.
* Earlier iterations were buggy w.r.t the sysfs interface of the cpuidle.
This iteration removes the bug in PATCH 1/7.
* In PATCH 7/7, smt_snooze_delay was not being updated whenever it was
changed through the sysfs interface. Provide a helper routine to
update it.
* In PATCH 7/7, the idle loops are renamed to denote the idle states
to avoid any confusion.
thanks,
arun
^ permalink raw reply
* Re: [PATCH] powerpc: tracing: Add powerpc tracepoints for interrupt entry and exit
From: Steven Rostedt @ 2009-10-06 13:38 UTC (permalink / raw)
To: Anton Blanchard; +Cc: Frederic Weisbecker, Ingo Molnar, linuxppc-dev
In-Reply-To: <20091006040554.GD16073@kryten>
On Tue, 2009-10-06 at 15:05 +1100, Anton Blanchard wrote:
> Hi Steve,
>
> > I think this may do better in a file like:
> >
> > arch/powerpc/kernel/trace.h
> >
> > You can look at the sample code and Makefile in samples/trace_events/
> > that shows how to make it work outside the include/trace/events
> > directory.
> >
> > I really would like to avoid placing arch specific files in a generic
> > directory, especially when there's a way to do it in the arch directory
> > itself.
> >
> > This also contains the arch code a bit better.
>
> Much nicer! I put the header file into include/asm/trace.h so an out of
> tree kernel module can find it easily. Does that sound reasonable?
Sure.
>
> Also, I ended up with an interesting include issue in trace-events.c:
>
>
> In file included from include/linux/slab.h:162,
> from include/linux/percpu.h:5,
> from /root/linux-tip/arch/powerpc/include/asm/tlbflush.h:86,
> from /root/linux-tip/arch/powerpc/include/asm/pgtable-ppc64.h:121,
> from /root/linux-tip/arch/powerpc/include/asm/pgtable.h:23,
> from include/linux/mm.h:39,
> from include/linux/ring_buffer.h:5,
> from include/linux/ftrace_event.h:4,
> from include/trace/ftrace.h:19,
> from include/trace/define_trace.h:61,
> from /root/linux-tip/arch/powerpc/include/asm/trace.h:52,
> from arch/powerpc/kernel/trace-events.c:2:
> include/linux/slub_def.h: In function ‘kmalloc_large’:
> include/linux/slub_def.h:236: error: implicit declaration of function ‘trace_kmalloc’
> include/linux/slub_def.h: In function ‘kmalloc_node’:
> include/linux/slub_def.h:296: error: implicit declaration of function ‘trace_kmalloc_node’
>
>
> Which I could work around by including linux/slab.h before creating
> the asm/trace.h tracepoints. I assume we don't see this elsewhere because
> any non trivial file includes linux/slab.h somewhere :)
Yeah, you need to have normal includes before adding the
CREATE_TRACE_POINTS macro.
Thanks,
Acked-by: Steven Rostedt <rostedt@goodmis.org>
-- Steve
>
> Anton
> --
>
> This patch adds powerpc specific tracepoints for interrupt entry and exit.
>
> While we already have generic irq_handler_entry and irq_handler_exit
> tracepoints there are cases on our virtualised powerpc machines where an
> interrupt is presented to the OS, but subsequently handled by the hypervisor.
> This means no OS interrupt handler is invoked.
>
> Here is an example on a POWER6 machine with the patch below applied:
>
> <idle>-0 [006] 3243.949840744: irq_entry: pt_regs=c0000000ce31fb10
> <idle>-0 [006] 3243.949850520: irq_exit: pt_regs=c0000000ce31fb10
>
> <idle>-0 [007] 3243.950218208: irq_entry: pt_regs=c0000000ce323b10
> <idle>-0 [007] 3243.950224080: irq_exit: pt_regs=c0000000ce323b10
>
> <idle>-0 [000] 3244.021879320: irq_entry: pt_regs=c000000000a63aa0
> <idle>-0 [000] 3244.021883616: irq_handler_entry: irq=87 handler=eth0
> <idle>-0 [000] 3244.021887328: irq_handler_exit: irq=87 return=handled
> <idle>-0 [000] 3244.021897408: irq_exit: pt_regs=c000000000a63aa0
>
> Here we see two phantom interrupts (no handler was invoked), followed
> by a real interrupt for eth0. Without the tracepoints in this patch we
> would have missed the phantom interrupts.
>
> Since these would be the first arch specific tracepoints, I'd like to make
> sure we agree on naming. The tracepoints live in events/powerpc/*, but I'm
> wondering if the tracepoint name should also contain the arch name, eg
> powerpc_irq_entry/powerpc_irq_exit. Thoughts?
>
> Signed-off-by: Anton Blanchard <anton@samba.org>
> --
>
> Index: linux.trees.git/arch/powerpc/include/asm/trace.h
> ===================================================================
> --- /dev/null 1970-01-01 00:00:00.000000000 +0000
> +++ linux.trees.git/arch/powerpc/include/asm/trace.h 2009-10-06 14:54:25.000000000 +1100
> @@ -0,0 +1,53 @@
> +#undef TRACE_SYSTEM
> +#define TRACE_SYSTEM powerpc
> +
> +#if !defined(_TRACE_POWERPC_H) || defined(TRACE_HEADER_MULTI_READ)
> +#define _TRACE_POWERPC_H
> +
> +#include <linux/tracepoint.h>
> +
> +struct pt_regs;
> +
> +TRACE_EVENT(irq_entry,
> +
> + TP_PROTO(struct pt_regs *regs),
> +
> + TP_ARGS(regs),
> +
> + TP_STRUCT__entry(
> + __field(struct pt_regs *, regs)
> + ),
> +
> + TP_fast_assign(
> + __entry->regs = regs;
> + ),
> +
> + TP_printk("pt_regs=%p", __entry->regs)
> +);
> +
> +TRACE_EVENT(irq_exit,
> +
> + TP_PROTO(struct pt_regs *regs),
> +
> + TP_ARGS(regs),
> +
> + TP_STRUCT__entry(
> + __field(struct pt_regs *, regs)
> + ),
> +
> + TP_fast_assign(
> + __entry->regs = regs;
> + ),
> +
> + TP_printk("pt_regs=%p", __entry->regs)
> +);
> +
> +#endif /* _TRACE_POWERPC_H */
> +
> +#undef TRACE_INCLUDE_PATH
> +#undef TRACE_INCLUDE_FILE
> +
> +#define TRACE_INCLUDE_PATH asm
> +#define TRACE_INCLUDE_FILE trace
> +
> +#include <trace/define_trace.h>
> Index: linux.trees.git/arch/powerpc/kernel/Makefile
> ===================================================================
> --- linux.trees.git.orig/arch/powerpc/kernel/Makefile 2009-10-06 14:02:03.000000000 +1100
> +++ linux.trees.git/arch/powerpc/kernel/Makefile 2009-10-06 14:38:51.000000000 +1100
> @@ -115,6 +115,8 @@ ifneq ($(CONFIG_XMON)$(CONFIG_KEXEC),)
> obj-y += ppc_save_regs.o
> endif
>
> +obj-$(CONFIG_TRACEPOINTS) += trace-events.o
> +
> # Disable GCOV in odd or sensitive code
> GCOV_PROFILE_prom_init.o := n
> GCOV_PROFILE_ftrace.o := n
> Index: linux.trees.git/arch/powerpc/kernel/trace-events.c
> ===================================================================
> --- /dev/null 1970-01-01 00:00:00.000000000 +0000
> +++ linux.trees.git/arch/powerpc/kernel/trace-events.c 2009-10-06 14:44:57.000000000 +1100
> @@ -0,0 +1,3 @@
> +#include <linux/slab.h>
> +#define CREATE_TRACE_POINTS
> +#include <asm/trace.h>
> Index: linux.trees.git/arch/powerpc/kernel/irq.c
> ===================================================================
> --- linux.trees.git.orig/arch/powerpc/kernel/irq.c 2009-10-06 14:02:15.000000000 +1100
> +++ linux.trees.git/arch/powerpc/kernel/irq.c 2009-10-06 14:13:08.000000000 +1100
> @@ -54,6 +54,7 @@
> #include <linux/pci.h>
> #include <linux/debugfs.h>
> #include <linux/perf_event.h>
> +#include <asm/trace.h>
>
> #include <asm/uaccess.h>
> #include <asm/system.h>
> @@ -325,6 +326,8 @@ void do_IRQ(struct pt_regs *regs)
> struct pt_regs *old_regs = set_irq_regs(regs);
> unsigned int irq;
>
> + trace_irq_entry(regs);
> +
> irq_enter();
>
> check_stack_overflow();
> @@ -348,6 +351,8 @@ void do_IRQ(struct pt_regs *regs)
> timer_interrupt(regs);
> }
> #endif
> +
> + trace_irq_exit(regs);
> }
>
> void __init init_IRQ(void)
^ permalink raw reply
* Re: [PATCH 0/6] PowerPc 8xx TLB/MMU fixes
From: Joakim Tjernlund @ 2009-10-06 13:18 UTC (permalink / raw)
To: Benjamin Herrenschmidt; +Cc: Scott Wood, linuxppc-dev@ozlabs.org, Rex Feany
In-Reply-To: <1254827186.6035.11.camel@pasglop>
Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote on 06/10/2009 13:06:26:
>
> On Tue, 2009-10-06 at 12:58 +0200, Joakim Tjernlund wrote:
>
> > Here I don't care if err. insn will be 0 if it fails and the following
> > if will be false
>
> I'd rather you use get_user() so it does access_ok().
>
> Else, you can probably manufacture some code that will make the kernel
> access some MMIO register for example, which could be nasty.
>
> At this point, you may as well also check the result even if indeed a
> fault isn't going to matter. Just makes the code cleaner and avoids some
> random janitor coming up with a patch later on :-)
>
> Cheers,
> Ben.
So my user space access was bust. Try slapping this on top
It might be that my crappy user space handling also tripped the
asm version, would be great if you could try that one again too.
I suspect that you both, Rex and Scott, have dcbX/icbi insn's in user
space that trip DTLB errors, that would explain everything I think.
Jocke
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index c33c6de..d757ec8 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -152,8 +152,16 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
unsigned long ra, rb, dar, insn;
#ifdef DEBUG_DCBX
const char *istr = NULL;
+ int ret;
+
+ insn = 0;
+ if (user_mode(regs)) {
+ if ((ret = get_user(insn, (unsigned long __user *)regs->nip)))
+ printk(KERN_CRIT "get_user:NIP:0x%08lx, err:%d\n",
+ regs->nip, ret);
+ } else
+ insn = *((unsigned long *)regs->nip);
- insn = *((unsigned long *)regs->nip);
if (((insn >> (31-5)) & 0x3f) == 31) {
if (((insn >> 1) & 0x3ff) == 1014) /* dcbz ? 0x3f6 */
istr = "dcbz";
@@ -178,20 +186,27 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
ra, rb, dar);
is_write = 0;
}
-
+#if 0
if (trap == 0x300 && address != dar) {
__asm__ ("mtdar %0" : : "r" (dar));
return 0;
}
+#endif
}
}
#endif
if (address == 0x00f0 && trap == 0x300) {
- pte_t *ptep;
-
+ int ret;
/* This is from a dcbX or icbi insn gone bad, these
* insn do not set DAR so we have to do it here instead */
- insn = *((unsigned long *)regs->nip);
+ if (user_mode(regs)) {
+ if ((ret = get_user(insn, (unsigned long __user *)regs->nip))) {
+ printk(KERN_CRIT "get_user:NIP:%lx, err:%d\n",
+ regs->nip, ret);
+ goto bad_area_nosemaphore;
+ }
+ } else
+ insn = *((unsigned long *)regs->nip);
ra = (insn >> (31-15)) & 0x1f; /* Reg RA */
rb = (insn >> (31-20)) & 0x1f; /* Reg RB */
@@ -206,18 +221,6 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
trap, address, dar, error_code, istr);
#endif
address = dar;
-#if 1
- if (is_write && get_pteptr(mm, dar, &ptep, NULL)) {
- pte_t my_pte = *ptep;
-
- if (pte_present(my_pte) && pte_write(my_pte)) {
- pte_val(my_pte) |= _PAGE_DIRTY|_PAGE_ACCESSED|_PAGE_HWWRITE;
- set_pte_at(mm, dar, ptep, my_pte);
- }
- }
-#else
- return 0;
-#endif
}
}
#endif
^ permalink raw reply related
* Re: SMU-base PowerMac and server_mode
From: Michel Dänzer @ 2009-10-06 12:53 UTC (permalink / raw)
To: Romain Goyet; +Cc: linuxppc-dev
In-Reply-To: <8028e5750910060444jd63dffcl6f57bb15c708e4c6@mail.gmail.com>
On Tue, 2009-10-06 at 13:44 +0200, Romain Goyet wrote:=20
>=20
> Acutally I didn't figure it out by myself :
> http://saintaardvarkthecarpeted.com/blog/archive/2005/02/THE_WINE_OF_BOOT=
.html
>=20
>=20
> However, here's my 2 cents about it :
> 1/ The fix (removing "screen" line in ofboot.b on yaboot partition)
> doesn't work with all versions of the yaboot binary. Works with the
> one from Debian. Doesn't with yaboot-static on GentooPPC64. But you
> still can fetch the right binary from the .deb archive
No need, see my .sig. :) Thanks for the pointer, I failed to find the
above when I googled about this a while ago.=20
--=20
Earthling Michel D=C3=A4nzer | http://www.vmware.c=
om
Libre software enthusiast | Debian, X and DRI developer
^ permalink raw reply
* Re: SMU-base PowerMac and server_mode
From: Romain Goyet @ 2009-10-06 11:45 UTC (permalink / raw)
To: Benjamin Herrenschmidt; +Cc: linuxppc-dev
In-Reply-To: <1254826312.6035.8.camel@pasglop>
[-- Attachment #1: Type: text/plain, Size: 1986 bytes --]
Hi again Benjamin !
That's allright, I'll ping you next month ! Thanks for the help !
- Romain
On Tue, Oct 6, 2009 at 12:51 PM, Benjamin Herrenschmidt <
benh@kernel.crashing.org> wrote:
> On Tue, 2009-10-06 at 12:31 +0200, Romain Goyet wrote:
> > Hi Benjamin !
> >
> >
> > Actually I saw a post where you mentioned this tool on Google. I
> > then searched it for like an hour or so, but really couldn't find it.
> > That's why I ended up posting on this mailing list. I'm really glad
> > you're on it by the way ! Anyway, like I said : I really looked for
> > this tool, but couldn't find it…
>
> Hrm... ok. I'll have to figure it out again. No time right now, but
> get back to me next month after Kernel Summit and I'll see what i can
> do.
>
> Cheers,
> Ben.
>
> >
> > Thanks a lot !
> >
> >
> > - Romain
> >
> >
> > On Tue, Oct 6, 2009 at 12:11 PM, Benjamin Herrenschmidt
> > <benh@kernel.crashing.org> wrote:
> >
> > On Tue, 2009-10-06 at 11:16 +0200, Romain Goyet wrote:
> > > Hi there,
> > >
> > >
> > > I have this Quad G5 here, running GentooPPC64. Runs fine.
> > Had a hard
> > > time getting it to boot without a screen attached, but I
> > eventually
> > > managed to (yaboot was the culprit). However, this machine
> > is
> > > SMU-based, and I couldn't find a way to enable the
> > equivalent of the
> > > PMU's "server_mode" (i.e. automatically reboot after a power
> > failure).
> > > Is there any known way to do that ?
> >
> >
> > I'm pretty sure I reverse engineered the necessary command a
> > while back
> > and somebody wrote a userland tool to set it, but I can't find
> > it
> > anymore :-)
> >
> > Google may help. Let me know if you can't find it.
> >
> > Cheers,
> > Ben.
> >
> >
> >
> >
>
>
>
[-- Attachment #2: Type: text/html, Size: 2849 bytes --]
^ permalink raw reply
* Re: SMU-base PowerMac and server_mode
From: Romain Goyet @ 2009-10-06 11:44 UTC (permalink / raw)
To: Michel Dänzer; +Cc: linuxppc-dev
In-Reply-To: <1254826247.4278.985.camel@thor.local>
[-- Attachment #1: Type: text/plain, Size: 1238 bytes --]
Hi Michel :-)
Acutally I didn't figure it out by myself :
http://saintaardvarkthecarpeted.com/blog/archive/2005/02/THE_WINE_OF_BOOT.html
However, here's my 2 cents about it :
1/ The fix (removing "screen" line in ofboot.b on yaboot partition) doesn't
work with all versions of the yaboot binary. Works with the one from Debian.
Doesn't with yaboot-static on GentooPPC64. But you still can fetch the right
binary from the .deb archive
2/ Another possible solution can be to hook up a DVI-> VGA adapter, and plug
in a resistor between the right pins (don't remember which) so that yaboot
thinks a display is plugged in
Hope that helps !!
- Romain
2009/10/6 Michel Dänzer <michel@daenzer.net>
> On Tue, 2009-10-06 at 11:16 +0200, Romain Goyet wrote:
> >
> > I have this Quad G5 here, running GentooPPC64. Runs fine. Had a hard
> > time getting it to boot without a screen attached, but I eventually
> > managed to (yaboot was the culprit).
>
> Out of curiosity, how did you solve this? I still have an unused monitor
> connected to mine...
>
> --
> Earthling Michel Dänzer | http://www.vmware.com
> Libre software enthusiast | Debian, X and DRI developer
>
[-- Attachment #2: Type: text/html, Size: 1894 bytes --]
^ permalink raw reply
* Re: [PATCH 0/6] PowerPc 8xx TLB/MMU fixes
From: Joakim Tjernlund @ 2009-10-06 11:39 UTC (permalink / raw)
To: Benjamin Herrenschmidt; +Cc: Scott Wood, linuxppc-dev@ozlabs.org, Rex Feany
In-Reply-To: <1254827186.6035.11.camel@pasglop>
Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote on 06/10/2009 13:06:26:
> From:
>
> Benjamin Herrenschmidt <benh@kernel.crashing.org>
>
> To:
>
> Joakim Tjernlund <joakim.tjernlund@transmode.se>
>
> Cc:
>
> "linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>, Rex Feany
> <RFeany@mrv.com>, Scott Wood <scottwood@freescale.com>
>
> Date:
>
> 06/10/2009 13:06
>
> Subject:
>
> Re: [PATCH 0/6] PowerPc 8xx TLB/MMU fixes
>
> On Tue, 2009-10-06 at 12:58 +0200, Joakim Tjernlund wrote:
>
> > Here I don't care if err. insn will be 0 if it fails and the following
> > if will be false
>
> I'd rather you use get_user() so it does access_ok().
It is only debug code so it will go away
The real access is later.
I need do kernel space separately, is there a better way than:
if (regs->nip & 0xc0000000) /* kernel space ? */
insn = *((unsigned long *)regs->nip);
else if (get_user(insn, (unsigned long *)regs->nip)) {
printk(KERN_CRIT "get_user! NIP:%lx\n", regs->nip); /* DEBUG */
goto bad_area_nosemaphore;
}
^ permalink raw reply
* Re: [PATCH 0/6] PowerPc 8xx TLB/MMU fixes
From: Benjamin Herrenschmidt @ 2009-10-06 11:06 UTC (permalink / raw)
To: Joakim Tjernlund; +Cc: Scott Wood, linuxppc-dev@ozlabs.org, Rex Feany
In-Reply-To: <OF5058A03E.5D586A94-ONC1257647.003C25B0-C1257647.003C5220@transmode.se>
On Tue, 2009-10-06 at 12:58 +0200, Joakim Tjernlund wrote:
> Here I don't care if err. insn will be 0 if it fails and the following
> if will be false
I'd rather you use get_user() so it does access_ok().
Else, you can probably manufacture some code that will make the kernel
access some MMIO register for example, which could be nasty.
At this point, you may as well also check the result even if indeed a
fault isn't going to matter. Just makes the code cleaner and avoids some
random janitor coming up with a patch later on :-)
Cheers,
Ben.
> > > if (((insn >> (31-5)) & 0x3f) == 31) {
> > > if (((insn >> 1) & 0x3ff) == 1014) /* dcbz ? 0x3f6 */
> > > istr = "dcbz";
> > > @@ -171,27 +172,32 @@ int __kprobes do_page_fault(struct pt_regs *regs,
> > unsigned long address,
> > > dar = regs->gpr[rb];
> > > if (ra)
> > > dar += regs->gpr[ra];
> > > - if (dar != address && address != 0x00f0 && trap == 0x300)
> > > + if (dar != address && trap == 0x300)
> > > printk(KERN_CRIT "%s: address:%lx, dar:%lx!\n", istr, address, dar);
> > > if (!strcmp(istr, "dcbst") && is_write) {
> > > printk(KERN_CRIT "dcbst R%ld,R%ld = %lx as a store, fixing!\n",
> > > ra, rb, dar);
> > > is_write = 0;
> > > }
> > > -
> > > +#if 0
> > > if (trap == 0x300 && address != dar) {
> > > __asm__ ("mtdar %0" : : "r" (dar));
> > > return 0;
> > > }
> > > +#endif
> > > }
> > > }
> > > #endif
> > > if (address == 0x00f0 && trap == 0x300) {
> > > - pte_t *ptep;
> > > + //pte_t *ptep;
> > >
> > > /* This is from a dcbX or icbi insn gone bad, these
> > > * insn do not set DAR so we have to do it here instead */
> > > - insn = *((unsigned long *)regs->nip);
> > > + if (get_user(insn, (unsigned long __user *)regs->nip)) {
> > > + printk(KERN_CRIT "get_user failed, NIP:%lx\n",
> > > + regs->nip);
> > > + goto bad_area_nosemaphore;
> > > + }
>
> and here I go to bad_area
^ permalink raw reply
* Re: [PATCH 0/6] PowerPc 8xx TLB/MMU fixes
From: Joakim Tjernlund @ 2009-10-06 10:58 UTC (permalink / raw)
To: Benjamin Herrenschmidt; +Cc: Scott Wood, linuxppc-dev@ozlabs.org, Rex Feany
In-Reply-To: <1254817969.6035.4.camel@pasglop>
>
>
> > > No, use get_user() not __get_user() or if you use the later, also use
> > > access_ok(), and test the result in case it errors (if it does, you
> > > probably want to just goto bad access and SEGV).
> >
> > OK, lets see what this gives us:
>
> Hrm... did you change anything ? :-)
Yes, see below
>
> Ben.
>
> > diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
> > index c33c6de..1bf91d3 100644
> > --- a/arch/powerpc/mm/fault.c
> > +++ b/arch/powerpc/mm/fault.c
> > @@ -153,7 +153,8 @@ int __kprobes do_page_fault(struct pt_regs *regs,
> unsigned long address,
> > #ifdef DEBUG_DCBX
> > const char *istr = NULL;
> >
> > - insn = *((unsigned long *)regs->nip);
> > + insn = 0;
> > + __get_user(insn, (unsigned long __user *)regs->nip);
Here I don't care if err. insn will be 0 if it fails and the following
if will be false
> > if (((insn >> (31-5)) & 0x3f) == 31) {
> > if (((insn >> 1) & 0x3ff) == 1014) /* dcbz ? 0x3f6 */
> > istr = "dcbz";
> > @@ -171,27 +172,32 @@ int __kprobes do_page_fault(struct pt_regs *regs,
> unsigned long address,
> > dar = regs->gpr[rb];
> > if (ra)
> > dar += regs->gpr[ra];
> > - if (dar != address && address != 0x00f0 && trap == 0x300)
> > + if (dar != address && trap == 0x300)
> > printk(KERN_CRIT "%s: address:%lx, dar:%lx!\n", istr, address, dar);
> > if (!strcmp(istr, "dcbst") && is_write) {
> > printk(KERN_CRIT "dcbst R%ld,R%ld = %lx as a store, fixing!\n",
> > ra, rb, dar);
> > is_write = 0;
> > }
> > -
> > +#if 0
> > if (trap == 0x300 && address != dar) {
> > __asm__ ("mtdar %0" : : "r" (dar));
> > return 0;
> > }
> > +#endif
> > }
> > }
> > #endif
> > if (address == 0x00f0 && trap == 0x300) {
> > - pte_t *ptep;
> > + //pte_t *ptep;
> >
> > /* This is from a dcbX or icbi insn gone bad, these
> > * insn do not set DAR so we have to do it here instead */
> > - insn = *((unsigned long *)regs->nip);
> > + if (get_user(insn, (unsigned long __user *)regs->nip)) {
> > + printk(KERN_CRIT "get_user failed, NIP:%lx\n",
> > + regs->nip);
> > + goto bad_area_nosemaphore;
> > + }
and here I go to bad_area
^ permalink raw reply
* Re: SMU-base PowerMac and server_mode
From: Michel Dänzer @ 2009-10-06 10:50 UTC (permalink / raw)
To: Romain Goyet; +Cc: linuxppc-dev
In-Reply-To: <8028e5750910060216x134a8a9cm461fa5a6e87eb6bb@mail.gmail.com>
On Tue, 2009-10-06 at 11:16 +0200, Romain Goyet wrote:=20
>=20
> I have this Quad G5 here, running GentooPPC64. Runs fine. Had a hard
> time getting it to boot without a screen attached, but I eventually
> managed to (yaboot was the culprit).
Out of curiosity, how did you solve this? I still have an unused monitor
connected to mine...=20
--=20
Earthling Michel D=C3=A4nzer | http://www.vmware.c=
om
Libre software enthusiast | Debian, X and DRI developer
^ permalink raw reply
* Re: SMU-base PowerMac and server_mode
From: Benjamin Herrenschmidt @ 2009-10-06 10:51 UTC (permalink / raw)
To: Romain Goyet; +Cc: linuxppc-dev
In-Reply-To: <8028e5750910060331m42ea795bi441eb7a9b39837f8@mail.gmail.com>
On Tue, 2009-10-06 at 12:31 +0200, Romain Goyet wrote:
> Hi Benjamin !
>
>
> Actually I saw a post where you mentioned this tool on Google. I
> then searched it for like an hour or so, but really couldn't find it.
> That's why I ended up posting on this mailing list. I'm really glad
> you're on it by the way ! Anyway, like I said : I really looked for
> this tool, but couldn't find it…
Hrm... ok. I'll have to figure it out again. No time right now, but
get back to me next month after Kernel Summit and I'll see what i can
do.
Cheers,
Ben.
>
> Thanks a lot !
>
>
> - Romain
>
>
> On Tue, Oct 6, 2009 at 12:11 PM, Benjamin Herrenschmidt
> <benh@kernel.crashing.org> wrote:
>
> On Tue, 2009-10-06 at 11:16 +0200, Romain Goyet wrote:
> > Hi there,
> >
> >
> > I have this Quad G5 here, running GentooPPC64. Runs fine.
> Had a hard
> > time getting it to boot without a screen attached, but I
> eventually
> > managed to (yaboot was the culprit). However, this machine
> is
> > SMU-based, and I couldn't find a way to enable the
> equivalent of the
> > PMU's "server_mode" (i.e. automatically reboot after a power
> failure).
> > Is there any known way to do that ?
>
>
> I'm pretty sure I reverse engineered the necessary command a
> while back
> and somebody wrote a userland tool to set it, but I can't find
> it
> anymore :-)
>
> Google may help. Let me know if you can't find it.
>
> Cheers,
> Ben.
>
>
>
>
^ permalink raw reply
* Re: SMU-base PowerMac and server_mode
From: Romain Goyet @ 2009-10-06 10:31 UTC (permalink / raw)
To: Benjamin Herrenschmidt; +Cc: linuxppc-dev
In-Reply-To: <1254823882.6035.5.camel@pasglop>
[-- Attachment #1: Type: text/plain, Size: 1198 bytes --]
Hi Benjamin !
Actually I saw a post where you mentioned this tool on Google. I then
searched it for like an hour or so, but really couldn't find it. That's why
I ended up posting on this mailing list. I'm really glad you're on it by the
way ! Anyway, like I said : I really looked for this tool, but couldn't find
it…
Thanks a lot !
- Romain
On Tue, Oct 6, 2009 at 12:11 PM, Benjamin Herrenschmidt <
benh@kernel.crashing.org> wrote:
> On Tue, 2009-10-06 at 11:16 +0200, Romain Goyet wrote:
> > Hi there,
> >
> >
> > I have this Quad G5 here, running GentooPPC64. Runs fine. Had a hard
> > time getting it to boot without a screen attached, but I eventually
> > managed to (yaboot was the culprit). However, this machine is
> > SMU-based, and I couldn't find a way to enable the equivalent of the
> > PMU's "server_mode" (i.e. automatically reboot after a power failure).
> > Is there any known way to do that ?
>
> I'm pretty sure I reverse engineered the necessary command a while back
> and somebody wrote a userland tool to set it, but I can't find it
> anymore :-)
>
> Google may help. Let me know if you can't find it.
>
> Cheers,
> Ben.
>
>
>
[-- Attachment #2: Type: text/html, Size: 1674 bytes --]
^ permalink raw reply
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