Patchwork atyfb: Fix bootup hangs on sparc64.

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Submitter David Miller
Date Jan. 5, 2011, 9:09 p.m.
Message ID <20110105.130959.260100853.davem@davemloft.net>
Download mbox | patch
Permalink /patch/77638/
State Accepted
Delegated to: David Miller
Headers show

Comments

David Miller - Jan. 5, 2011, 9:09 p.m.
After commit 25edd6946a1d74e5e77813c2324a0908c68bcf9e ("sparc64: Get
rid of indirect p1275 PROM call buffer.")  we can't pass virtual
addresses >4GB to PROM calls.

Largely this is never necessary in drivers because we have a copy of
the entire PROM device tree in the kernel and a set of of_*()
interfaces to access it.

Unfortunately there were some lingering prom calls in the atyfb
driver, in particular prom_finddevice() was being called with an
on-stack address which could be anywhere.

This code is actually probing for information we already have, the
PROM choosen console output device is stored in of_console_device so
all of this nasty code consolidates into a one-line comparison.

Next we have some prom_getintdefault() calls which are trivially
transformed into the equivalent of_getintprop_default().

Special thanks to Fabio, who figured out exactly where the bootup
was hanging.  That made this bug trivial to fix.

Reported-by: Fabio M. Di NItto <fabbione@fabbione.net>
Reported-by: Sam Ravnborg <sam@ravnborg.org>
Reported-by: Frans van Berckel <fberckel@xs4all.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/video/aty/atyfb_base.c |   27 +++++----------------------
 1 files changed, 5 insertions(+), 22 deletions(-)
Frans van Berckel - Jan. 5, 2011, 9:37 p.m.
Thanks for patching. Will build and test, first thing next day.

Frans van Berckel

On Wed, 2011-01-05 at 13:09 -0800, David Miller wrote:
> After commit 25edd6946a1d74e5e77813c2324a0908c68bcf9e ("sparc64: Get
> rid of indirect p1275 PROM call buffer.")  we can't pass virtual
> addresses >4GB to PROM calls.
> 
> Largely this is never necessary in drivers because we have a copy of
> the entire PROM device tree in the kernel and a set of of_*()
> interfaces to access it.
> 
> Unfortunately there were some lingering prom calls in the atyfb
> driver, in particular prom_finddevice() was being called with an
> on-stack address which could be anywhere.
> 
> This code is actually probing for information we already have, the
> PROM choosen console output device is stored in of_console_device so
> all of this nasty code consolidates into a one-line comparison.
> 
> Next we have some prom_getintdefault() calls which are trivially
> transformed into the equivalent of_getintprop_default().
> 
> Special thanks to Fabio, who figured out exactly where the bootup
> was hanging.  That made this bug trivial to fix.
> 
> Reported-by: Fabio M. Di NItto <fabbione@fabbione.net>
> Reported-by: Sam Ravnborg <sam@ravnborg.org>
> Reported-by: Frans van Berckel <fberckel@xs4all.nl>
> Signed-off-by: David S. Miller <davem@davemloft.net>

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Sam Ravnborg - Jan. 5, 2011, 10:39 p.m.
On Wed, Jan 05, 2011 at 01:09:59PM -0800, David Miller wrote:
> 
> After commit 25edd6946a1d74e5e77813c2324a0908c68bcf9e ("sparc64: Get
> rid of indirect p1275 PROM call buffer.")  we can't pass virtual
> addresses >4GB to PROM calls.
> 
> Largely this is never necessary in drivers because we have a copy of
> the entire PROM device tree in the kernel and a set of of_*()
> interfaces to access it.
> 
> Unfortunately there were some lingering prom calls in the atyfb
> driver, in particular prom_finddevice() was being called with an
> on-stack address which could be anywhere.
> 
> This code is actually probing for information we already have, the
> PROM choosen console output device is stored in of_console_device so
> all of this nasty code consolidates into a one-line comparison.
> 
> Next we have some prom_getintdefault() calls which are trivially
> transformed into the equivalent of_getintprop_default().
> 
> Special thanks to Fabio, who figured out exactly where the bootup
> was hanging.  That made this bug trivial to fix.

The patch did not fix my hang during boot.
I have added a few prinks and I can see that the boot
hangs here:
                printk(KERN_INFO "console [%s%d] enabled, bootconsole disabled\n",
                        newcon->name, newcon->index);
                for_each_console(bcon) {
                        if (bcon->flags & CON_BOOT)
                                unregister_console(bcon);  <<<<<<<
                }

We succeed to unregister "tty" but when we unregister "earlyprom" I see a hang.

So what I see is a different bug.

I did not try to persuade it further as it is getting late here.

Kernel config attached.

	Sam

#
# Automatically generated make config: don't edit
# Linux/sparc64 2.6.37-rc5 Kernel Configuration
# Wed Jan  5 22:27:22 2011
#
CONFIG_64BIT=y
CONFIG_SPARC=y
# CONFIG_SPARC32 is not set
CONFIG_SPARC64=y
CONFIG_ARCH_DEFCONFIG="arch/sparc/configs/sparc64_defconfig"
CONFIG_BITS=64
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_IOMMU_HELPER=y
CONFIG_QUICKLIST=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_AUDIT_ARCH=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
CONFIG_MMU=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_ARCH_NO_VIRT_TO_BUS=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y
CONFIG_HAVE_IRQ_WORK=y
CONFIG_IRQ_WORK=y

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
CONFIG_LOCALVERSION="-blade100"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
# CONFIG_SYSVIPC is not set
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
# CONFIG_HAVE_GENERIC_HARDIRQS is not set
CONFIG_GENERIC_HARDIRQS=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_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=18
# CONFIG_CGROUPS is not set
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_LZO=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
# CONFIG_EMBEDDED is not set
CONFIG_UID16=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_PERF_USE_VMALLOC=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
CONFIG_PERF_COUNTERS=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
CONFIG_PROFILING=y
CONFIG_OPROFILE=y
CONFIG_HAVE_OPROFILE=y
# CONFIG_JUMP_LABEL is not set
CONFIG_HAVE_SYSCALL_WRAPPERS=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_ATTRS=y
CONFIG_USE_GENERIC_SMP_HELPERS=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y

#
# GCOV-based kernel profiling
#
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
# CONFIG_MODULES is not set
CONFIG_BLOCK=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_DEADLINE is not set
CONFIG_IOSCHED_CFQ=y
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_INLINE_SPIN_TRYLOCK is not set
# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK is not set
# CONFIG_INLINE_SPIN_LOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
CONFIG_INLINE_SPIN_UNLOCK=y
# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_READ_TRYLOCK is not set
# CONFIG_INLINE_READ_LOCK is not set
# CONFIG_INLINE_READ_LOCK_BH is not set
# CONFIG_INLINE_READ_LOCK_IRQ is not set
# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
CONFIG_INLINE_READ_UNLOCK=y
# CONFIG_INLINE_READ_UNLOCK_BH is not set
CONFIG_INLINE_READ_UNLOCK_IRQ=y
# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_WRITE_TRYLOCK is not set
# CONFIG_INLINE_WRITE_LOCK is not set
# CONFIG_INLINE_WRITE_LOCK_BH is not set
# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
CONFIG_INLINE_WRITE_UNLOCK=y
# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
CONFIG_MUTEX_SPIN_ON_OWNER=y
# CONFIG_FREEZER is not set

#
# Processor type and features
#
CONFIG_SMP=y
CONFIG_NR_CPUS=2
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_SCHED_HRTICK is not set
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_SPARC64_SMP=y
# CONFIG_EARLYFB is not set
CONFIG_SPARC64_PAGE_SIZE_8KB=y
# CONFIG_SPARC64_PAGE_SIZE_64KB is not set
# CONFIG_SECCOMP is not set
# CONFIG_HOTPLUG_CPU is not set
# CONFIG_NO_HZ is not set
# CONFIG_HIGH_RES_TIMERS is not set
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
# CONFIG_CPU_FREQ is not set
# CONFIG_US3_MC is not set
# CONFIG_NUMA is not set
CONFIG_ARCH_POPULATES_NODE_MAP=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
# CONFIG_SPARSEMEM_VMEMMAP is not set
CONFIG_HAVE_MEMBLOCK=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_NR_QUICK=1
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=8192
# CONFIG_SCHED_SMT is not set
# CONFIG_SCHED_MC is not set
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
# CONFIG_CMDLINE_BOOL is not set

#
# Bus options (PCI etc.)
#
CONFIG_SBUS=y
CONFIG_SBUSCHAR=y
# CONFIG_SUN_LDOMS is not set
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCI_SYSCALL=y
CONFIG_ARCH_SUPPORTS_MSI=y
CONFIG_PCI_MSI=y
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
# CONFIG_PCCARD is not set
CONFIG_SUN_OPENPROMFS=y
CONFIG_SPARC64_PCI=y

#
# Executable file formats
#
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_COMPAT=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
# CONFIG_INET_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# 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_L2TP 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
# 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
CONFIG_RPS=y

#
# Network testing
#
# CONFIG_NET_PKTGEN 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 is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_DEVTMPFS is not set
CONFIG_STANDALONE=y
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_SYS_HYPERVISOR is not set
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
# CONFIG_MTD is not set
CONFIG_OF=y

#
# Device Tree and Open Firmware support
#
CONFIG_OF_PROMTREE=y
CONFIG_OF_DEVICE=y
CONFIG_OF_MDIO=y
# CONFIG_PARPORT is not set
# CONFIG_BLK_DEV is not set
# CONFIG_MISC_DEVICES is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
CONFIG_SCSI_FC_ATTRS=y
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# 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_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLOGICPTI is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_SUNESP is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_BFA_FC is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set
CONFIG_MII=y
CONFIG_PHYLIB=y

#
# MII PHY device drivers
#
# CONFIG_MARVELL_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BCM63XX_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_MICREL_PHY is not set
# CONFIG_FIXED_PHY is not set
# CONFIG_MDIO_BITBANG is not set
CONFIG_NET_ETHERNET=y
# CONFIG_SUNLANCE is not set
CONFIG_HAPPYMEAL=y
CONFIG_SUNBMAC=y
CONFIG_SUNQE=y
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_ETHOC is not set
# CONFIG_GRETH 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 is not set
# CONFIG_B44 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_ATL2 is not set
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_WAN is not set

#
# CAIF transport drivers
#
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT2160 is not set
CONFIG_KEYBOARD_LKKBD=y
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
CONFIG_KEYBOARD_SUNKBD=y
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_SERIAL=y
# 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
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
CONFIG_INPUT_SPARCSPKR=y
# CONFIG_INPUT_ATI_REMOTE is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
# CONFIG_INPUT_CM109 is not set
# CONFIG_INPUT_UINPUT is not set
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_ADXL34X is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
# CONFIG_SERIO_SERPORT is not set
CONFIG_SERIO_PCIPS2=y
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=y
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_GAMEPORT is not set

#
# 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
# CONFIG_DEVKMEM is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_N_GSM is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MFD_HSU is not set
CONFIG_SERIAL_SUNCORE=y
# CONFIG_SERIAL_SUNZILOG is not set
CONFIG_SERIAL_SUNSU=y
CONFIG_SERIAL_SUNSU_CONSOLE=y
CONFIG_SERIAL_SUNSAB=y
CONFIG_SERIAL_SUNSAB_CONSOLE=y
CONFIG_SERIAL_SUNHV=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_GRLIB_GAISLER_APBUART is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
# CONFIG_LEGACY_PTYS is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
CONFIG_HW_RANDOM_N2RNG=y
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_RAMOOPS is not set
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
# CONFIG_I2C_COMPAT is not set
# CONFIG_I2C_CHARDEV is not set
# CONFIG_I2C_MUX is not set
# CONFIG_I2C_HELPER_AUTO is not set
CONFIG_I2C_SMBUS=y

#
# I2C Algorithms
#
CONFIG_I2C_ALGOBIT=y
# CONFIG_I2C_ALGOPCF is not set
# CONFIG_I2C_ALGOPCA is not set

#
# 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_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X 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_INTEL_MID is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX 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

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS 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 is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
# CONFIG_MFD_SUPPORT is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_DRM is not set
# CONFIG_STUB_POULSBO is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
# CONFIG_FB_MODE_HELPERS is not set
# CONFIG_FB_TILEBLITTING is not set

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_UVESA is not set
# CONFIG_FB_SBUS is not set
# CONFIG_FB_XVR500 is not set
# CONFIG_FB_XVR2500 is not set
# CONFIG_FB_XVR1000 is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
CONFIG_FB_ATY=y
# CONFIG_FB_ATY_CT is not set
# CONFIG_FB_ATY_GX is not set
# CONFIG_FB_ATY_BACKLIGHT is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# 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_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 is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE is not set
# CONFIG_LOGO is not set
# CONFIG_SOUND is not set
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HIDRAW is not set

#
# USB Input Devices
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
CONFIG_USB_HIDDEV=y

#
# Special HID drivers
#
# CONFIG_HID_3M_PCT is not set
CONFIG_HID_A4TECH=y
# CONFIG_HID_ACRUX_FF is not set
CONFIG_HID_APPLE=y
CONFIG_HID_BELKIN=y
# CONFIG_HID_CANDO is not set
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
CONFIG_HID_CYPRESS=y
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EGALAX is not set
CONFIG_HID_EZKEY=y
CONFIG_HID_KYE=y
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_TWINHAN is not set
CONFIG_HID_KENSINGTON=y
CONFIG_HID_LOGITECH=y
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
# CONFIG_LOGIWII_FF is not set
CONFIG_HID_MICROSOFT=y
# CONFIG_HID_MOSART is not set
CONFIG_HID_MONTEREY=y
# CONFIG_HID_NTRIG is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_QUANTA is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_ROCCAT_KONE is not set
# CONFIG_HID_ROCCAT_PYRA is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SONY is not set
# CONFIG_HID_STANTUM is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
# CONFIG_USB_DEVICEFS is not set
# CONFIG_USB_DEVICE_CLASS is not set
# CONFIG_USB_DYNAMIC_MINORS 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_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_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD 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
#
# 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 depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_UAS is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX 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
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# 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_YUREX 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
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K 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
#

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
# 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=y
# CONFIG_RTC_DRV_MSM6242 is not set
CONFIG_RTC_DRV_BQ4802=y
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_SUN4V=y
CONFIG_RTC_DRV_STARFIRE=y
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_STAGING is not set

#
# Misc Linux/SPARC drivers
#
CONFIG_SUN_OPENPROMIO=y
# CONFIG_OBP_FLASH is not set
# CONFIG_TADPOLE_TS102_UCTRL is not set
# CONFIG_BBC_I2C is not set
# CONFIG_ENVCTRL is not set
# CONFIG_DISPLAY7SEG is not set

#
# File systems
#
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT2_FS_XIP is not set
# CONFIG_EXT3_FS is not set
# CONFIG_EXT4_FS is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
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 is not set
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY_USER is not set
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set

#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
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 is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NETWORK_FILESYSTEMS=y
# CONFIG_NFS_FS is not set
# CONFIG_NFSD is not set
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_SUN_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set
# CONFIG_DLM is not set

#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
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_HEADERS_CHECK is not set
# CONFIG_DEBUG_KERNEL is not set
# CONFIG_HARDLOCKUP_DETECTOR is not set
# CONFIG_BKL is not set
# CONFIG_SPARSE_RCU_POINTER is not set
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_SYSCTL_SYSCALL_CHECK is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_RING_BUFFER=y
CONFIG_RING_BUFFER_ALLOW_SWAP=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
# CONFIG_CRYPTO_CBC is not set
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# 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 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
# CONFIG_CRYPTO_AES is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# 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 is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_LAST_BIT=y
CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=y
CONFIG_ZLIB_INFLATE=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y

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Fabio M. Di NItto - Jan. 6, 2011, 4:35 a.m.
On 01/05/2011 11:39 PM, Sam Ravnborg wrote:
> On Wed, Jan 05, 2011 at 01:09:59PM -0800, David Miller wrote:
>>
>> After commit 25edd6946a1d74e5e77813c2324a0908c68bcf9e ("sparc64: Get
>> rid of indirect p1275 PROM call buffer.")  we can't pass virtual
>> addresses >4GB to PROM calls.
>>
>> Largely this is never necessary in drivers because we have a copy of
>> the entire PROM device tree in the kernel and a set of of_*()
>> interfaces to access it.
>>
>> Unfortunately there were some lingering prom calls in the atyfb
>> driver, in particular prom_finddevice() was being called with an
>> on-stack address which could be anywhere.
>>
>> This code is actually probing for information we already have, the
>> PROM choosen console output device is stored in of_console_device so
>> all of this nasty code consolidates into a one-line comparison.
>>
>> Next we have some prom_getintdefault() calls which are trivially
>> transformed into the equivalent of_getintprop_default().
>>
>> Special thanks to Fabio, who figured out exactly where the bootup
>> was hanging.  That made this bug trivial to fix.
> 
> The patch did not fix my hang during boot.
> I have added a few prinks and I can see that the boot
> hangs here:
>                 printk(KERN_INFO "console [%s%d] enabled, bootconsole disabled\n",
>                         newcon->name, newcon->index);
>                 for_each_console(bcon) {
>                         if (bcon->flags & CON_BOOT)
>                                 unregister_console(bcon);  <<<<<<<
>                 }
> 
> We succeed to unregister "tty" but when we unregister "earlyprom" I see a hang.
> 
> So what I see is a different bug.
> 
> I did not try to persuade it further as it is getting late here.
> 
> Kernel config attached.
> 
> 	Sam

What kernel version are you running exactly? config says 2.6.36-rc7, if
so it's missing other fixes related to the console handover.

Basically, grab 2.6.37 that was released a day ago and apply the patch.

If the problem persist, please comment out the call to
unregister_console and boot with -p. That should give us enough extra
output to see where it's hanging.

Fabio
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Sam Ravnborg - Jan. 6, 2011, 7:47 a.m.
> 
> The patch did not fix my hang during boot.
> I have added a few prinks and I can see that the boot
> hangs here:
>                 printk(KERN_INFO "console [%s%d] enabled, bootconsole disabled\n",
>                         newcon->name, newcon->index);
>                 for_each_console(bcon) {
>                         if (bcon->flags & CON_BOOT)
>                                 unregister_console(bcon);  <<<<<<<
>                 }
> 
> We succeed to unregister "tty" but when we unregister "earlyprom" I see a hang.
> 
> So what I see is a different bug.
> 
> I did not try to persuade it further as it is getting late here.

I tried to drop "CON_BOOT" from earlyprom and then the box
continued booting until it failed to mount my root filesystem.

I could see that atyfb_init() was called but
atyfb_setup_sparc() was never called - so I did not test your patch.

	Sam
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Fabio M. Di NItto - Jan. 6, 2011, 8:15 a.m.
Signed-off-by: Fabio M. Di NItto <fabbione@fabbione.net>

tested the patch on top of a clean 2.6.37 and on top of 2.6.36.x +
proposed patch set (as you mailed them to me).

Both works like a charm.

Thanks for fixing this David, I am working on a patch for Debian so
hopefully they can get it in before release.

Fabio

On 1/5/2011 10:09 PM, David Miller wrote:
> 
> After commit 25edd6946a1d74e5e77813c2324a0908c68bcf9e ("sparc64: Get
> rid of indirect p1275 PROM call buffer.")  we can't pass virtual
> addresses >4GB to PROM calls.
> 
> Largely this is never necessary in drivers because we have a copy of
> the entire PROM device tree in the kernel and a set of of_*()
> interfaces to access it.
> 
> Unfortunately there were some lingering prom calls in the atyfb
> driver, in particular prom_finddevice() was being called with an
> on-stack address which could be anywhere.
> 
> This code is actually probing for information we already have, the
> PROM choosen console output device is stored in of_console_device so
> all of this nasty code consolidates into a one-line comparison.
> 
> Next we have some prom_getintdefault() calls which are trivially
> transformed into the equivalent of_getintprop_default().
> 
> Special thanks to Fabio, who figured out exactly where the bootup
> was hanging.  That made this bug trivial to fix.
> 
> Reported-by: Fabio M. Di NItto <fabbione@fabbione.net>
> Reported-by: Sam Ravnborg <sam@ravnborg.org>
> Reported-by: Frans van Berckel <fberckel@xs4all.nl>
> Signed-off-by: David S. Miller <davem@davemloft.net>
> ---
>  drivers/video/aty/atyfb_base.c |   27 +++++----------------------
>  1 files changed, 5 insertions(+), 22 deletions(-)
> 
> diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
> index 5bf9123..5a3ce3a 100644
> --- a/drivers/video/aty/atyfb_base.c
> +++ b/drivers/video/aty/atyfb_base.c
> @@ -2969,10 +2969,8 @@ static int __devinit atyfb_setup_sparc(struct pci_dev *pdev,
>  {
>  	struct atyfb_par *par = info->par;
>  	struct device_node *dp;
> -	char prop[128];
> -	phandle node;
> -	int len, i, j, ret;
>  	u32 mem, chip_id;
> +	int i, j, ret;
>  
>  	/*
>  	 * Map memory-mapped registers.
> @@ -3088,23 +3086,8 @@ static int __devinit atyfb_setup_sparc(struct pci_dev *pdev,
>  		aty_st_le32(MEM_CNTL, mem, par);
>  	}
>  
> -	/*
> -	 * If this is the console device, we will set default video
> -	 * settings to what the PROM left us with.
> -	 */
> -	node = prom_getchild(prom_root_node);
> -	node = prom_searchsiblings(node, "aliases");
> -	if (node) {
> -		len = prom_getproperty(node, "screen", prop, sizeof(prop));
> -		if (len > 0) {
> -			prop[len] = '\0';
> -			node = prom_finddevice(prop);
> -		} else
> -			node = 0;
> -	}
> -
>  	dp = pci_device_to_OF_node(pdev);
> -	if (node == dp->phandle) {
> +	if (dp == of_console_device) {
>  		struct fb_var_screeninfo *var = &default_var;
>  		unsigned int N, P, Q, M, T, R;
>  		u32 v_total, h_total;
> @@ -3112,9 +3095,9 @@ static int __devinit atyfb_setup_sparc(struct pci_dev *pdev,
>  		u8 pll_regs[16];
>  		u8 clock_cntl;
>  
> -		crtc.vxres = prom_getintdefault(node, "width", 1024);
> -		crtc.vyres = prom_getintdefault(node, "height", 768);
> -		var->bits_per_pixel = prom_getintdefault(node, "depth", 8);
> +		crtc.vxres = of_getintprop_default(dp, "width", 1024);
> +		crtc.vyres = of_getintprop_default(dp, "height", 768);
> +		var->bits_per_pixel = of_getintprop_default(dp, "depth", 8);
>  		var->xoffset = var->yoffset = 0;
>  		crtc.h_tot_disp = aty_ld_le32(CRTC_H_TOTAL_DISP, par);
>  		crtc.h_sync_strt_wid = aty_ld_le32(CRTC_H_SYNC_STRT_WID, par);

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Frans van Berckel - Jan. 6, 2011, 1:35 p.m.
On Wed, 2011-01-05 at 13:09 -0800, David Miller wrote:

> Reported-by: Fabio M. Di NItto <fabbione@fabbione.net>
> Reported-by: Sam Ravnborg <sam@ravnborg.org>
> Reported-by: Frans van Berckel <fberckel@xs4all.nl>
> Signed-off-by: David S. Miller <davem@davemloft.net>

I did the 2.6.37 release build today. Its boot tested and goes nicely.

Tested-by: Frans van Berckel <fberckel@xs4all.nl>

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David Miller - Jan. 6, 2011, 7:36 p.m.
From: "Fabio M. Di Nitto" <fabbione@fabbione.net>
Date: Thu, 06 Jan 2011 09:15:02 +0100

> Signed-off-by: Fabio M. Di NItto <fabbione@fabbione.net>
> 
> tested the patch on top of a clean 2.6.37 and on top of 2.6.36.x +
> proposed patch set (as you mailed them to me).
> 
> Both works like a charm.
> 
> Thanks for fixing this David, I am working on a patch for Debian so
> hopefully they can get it in before release.

Thanks a lot for testing and debugging.
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Fabio M. Di NItto - Jan. 6, 2011, 7:57 p.m.
On 01/06/2011 08:36 PM, David Miller wrote:
> From: "Fabio M. Di Nitto" <fabbione@fabbione.net>
> Date: Thu, 06 Jan 2011 09:15:02 +0100
> 
>> Signed-off-by: Fabio M. Di NItto <fabbione@fabbione.net>
>>
>> tested the patch on top of a clean 2.6.37 and on top of 2.6.36.x +
>> proposed patch set (as you mailed them to me).
>>
>> Both works like a charm.
>>
>> Thanks for fixing this David, I am working on a patch for Debian so
>> hopefully they can get it in before release.
> 
> Thanks a lot for testing and debugging.

No problem. I miss the good old times :)

Fabio
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Sam Ravnborg - Jan. 7, 2011, 10:41 p.m.
> 
> What kernel version are you running exactly? config says 2.6.36-rc7, if
> so it's missing other fixes related to the console handover.
> 
> Basically, grab 2.6.37 that was released a day ago and apply the patch.
> 
> If the problem persist, please comment out the call to
> unregister_console and boot with -p. That should give us enough extra
> output to see where it's hanging.

Just a quick status.
I used HEAD from mainline today as it included all my sparc patches.
[Initially it oopsed but this was unrelated].

After enabling all ATYFB related options in the config
I could see that it got probed and I got output on the screen.

There is a few seconds period with no output.
Then I get output where all text are displayed in four coloums, where
two of the coloums are copies.
I can see the cursor is rapidly moving around on the screen - or
at least it looks like a cursor.

I tried to change resolution like this:

prom> setenv output-device=screen:x1024x768x70
prom> reset-all

I then used:
prom> cd /pci/SUNW,m64B
prom> .properties

This showed that the new resolution had been stored.

But this had no effect on he output :-(

Anyway.
I can see that we suceed callign the setup function that David fixes.
And what I see now is most likely a driver issue.

For now I will just accept that I need to use serial.
I may revist this later.

	Sam
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Fabio M. Di NItto - Jan. 8, 2011, 9:01 a.m.
On 01/07/2011 11:41 PM, Sam Ravnborg wrote:
>>
>> What kernel version are you running exactly? config says 2.6.36-rc7, if
>> so it's missing other fixes related to the console handover.
>>
>> Basically, grab 2.6.37 that was released a day ago and apply the patch.
>>
>> If the problem persist, please comment out the call to
>> unregister_console and boot with -p. That should give us enough extra
>> output to see where it's hanging.
> 
> Just a quick status.
> I used HEAD from mainline today as it included all my sparc patches.
> [Initially it oopsed but this was unrelated].
> 
> After enabling all ATYFB related options in the config
> I could see that it got probed and I got output on the screen.

Oh ok.. so you do use the card output (that would have been useful info
earlier ;)). All my tests were around fixing serial console (as it's
really the only one I have). I'll try to hook up a monitor to the SB100
and see if I can reproduce here.

Fabio
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David Miller - Jan. 8, 2011, 7:26 p.m.
From: "Fabio M. Di NItto" <fabbione@fabbione.net>
Date: Sat, 08 Jan 2011 10:01:43 +0100

> Oh ok.. so you do use the card output (that would have been useful info
> earlier ;)). All my tests were around fixing serial console (as it's
> really the only one I have). I'll try to hook up a monitor to the SB100
> and see if I can reproduce here.

Sam figured out the bug the other day, see the thread starting at:

http://marc.info/?l=linux-sparc&m=129443149014127&w=2
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Fabio M. Di NItto - Jan. 9, 2011, 11:32 a.m.
On 01/08/2011 08:26 PM, David Miller wrote:
> From: "Fabio M. Di NItto" <fabbione@fabbione.net>
> Date: Sat, 08 Jan 2011 10:01:43 +0100
> 
>> Oh ok.. so you do use the card output (that would have been useful info
>> earlier ;)). All my tests were around fixing serial console (as it's
>> really the only one I have). I'll try to hook up a monitor to the SB100
>> and see if I can reproduce here.
> 
> Sam figured out the bug the other day, see the thread starting at:
> 
> http://marc.info/?l=linux-sparc&m=129443149014127&w=2

Ok thanks for the head up.

Fabio
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David Miller - Jan. 10, 2011, 8:20 a.m.
From: Sam Ravnborg <sam@ravnborg.org>
Date: Fri, 7 Jan 2011 23:41:51 +0100

> I tried to change resolution like this:
> 
> prom> setenv output-device=screen:x1024x768x70
> prom> reset-all
> 
> I then used:
> prom> cd /pci/SUNW,m64B
> prom> .properties
> 
> This showed that the new resolution had been stored.
> 
> But this had no effect on he output :-(

Weird, because the atyfb code in atyfb_setup_sparc() is designed to
explicitly respect the OpenFirmware resolution and refresh settings.

Can you make sure that:

	dp = pci_device_to_OF_node(pdev);
	if (dp == of_console_device) {

check does in fact trigger?  The code protected by that conditional is
the code that implements the importing of OpenFirmware's configured
resolution.

I'll try to find time to fire up my sb100 and try to help debug this,
since I'm actually at the physical location of mine at the moment :-)
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Sam Ravnborg - Jan. 10, 2011, 8:30 a.m.
On Mon, Jan 10, 2011 at 12:20:37AM -0800, David Miller wrote:
> From: Sam Ravnborg <sam@ravnborg.org>
> Date: Fri, 7 Jan 2011 23:41:51 +0100
> 
> > I tried to change resolution like this:
> > 
> > prom> setenv output-device=screen:x1024x768x70
> > prom> reset-all
> > 
> > I then used:
> > prom> cd /pci/SUNW,m64B
> > prom> .properties
> > 
> > This showed that the new resolution had been stored.
> > 
> > But this had no effect on he output :-(
> 
> Weird, because the atyfb code in atyfb_setup_sparc() is designed to
> explicitly respect the OpenFirmware resolution and refresh settings.
> 
> Can you make sure that:
> 
> 	dp = pci_device_to_OF_node(pdev);
> 	if (dp == of_console_device) {
> 
> check does in fact trigger?  The code protected by that conditional is
> the code that implements the importing of OpenFirmware's configured
> resolution.
> 
> I'll try to find time to fire up my sb100 and try to help debug this,
> since I'm actually at the physical location of mine at the moment :-)

I will try when I get home later today - it will be ~10 hours from now.

The display I see on the monitor after the hand-over complete is
a few coloumns of duplicated text.
As my primitive root filesystem halts I cannot produce any output.

When I enter the prom console I continue to see the same text
in the background.
If it is on any help I can try to take a picture.

	Sam
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David Miller - Jan. 10, 2011, 8:32 a.m.
From: Sam Ravnborg <sam@ravnborg.org>
Date: Mon, 10 Jan 2011 09:30:13 +0100

> The display I see on the monitor after the hand-over complete is
> a few coloumns of duplicated text.
> As my primitive root filesystem halts I cannot produce any output.
> 
> When I enter the prom console I continue to see the same text
> in the background.
> If it is on any help I can try to take a picture.

What kind of monitor the machine is hooked up to?  I think this may
be key to reproducing the problem and perhaps I have something similar
here for testing.

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Sam Ravnborg - Jan. 10, 2011, 11:53 a.m.
On Mon, Jan 10, 2011 at 12:32:10AM -0800, David Miller wrote:
> From: Sam Ravnborg <sam@ravnborg.org>
> Date: Mon, 10 Jan 2011 09:30:13 +0100
> 
> > The display I see on the monitor after the hand-over complete is
> > a few coloumns of duplicated text.
> > As my primitive root filesystem halts I cannot produce any output.
> > 
> > When I enter the prom console I continue to see the same text
> > in the background.
> > If it is on any help I can try to take a picture.
> 
> What kind of monitor the machine is hooked up to?  I think this may
> be key to reproducing the problem and perhaps I have something similar
> here for testing.

I have tried with two different LCD monitors.
One of them was a HP hp1502.

The other was a newer 17" model - but not new.

	Sam
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Sam Ravnborg - Jan. 10, 2011, 7:32 p.m.
On Mon, Jan 10, 2011 at 12:20:37AM -0800, David Miller wrote:
> From: Sam Ravnborg <sam@ravnborg.org>
> Date: Fri, 7 Jan 2011 23:41:51 +0100
> 
> > I tried to change resolution like this:
> > 
> > prom> setenv output-device=screen:x1024x768x70
> > prom> reset-all
> > 
> > I then used:
> > prom> cd /pci/SUNW,m64B
> > prom> .properties
> > 
> > This showed that the new resolution had been stored.
> > 
> > But this had no effect on he output :-(
> 
> Weird, because the atyfb code in atyfb_setup_sparc() is designed to
> explicitly respect the OpenFirmware resolution and refresh settings.
> 
> Can you make sure that:
> 
> 	dp = pci_device_to_OF_node(pdev);
> 	if (dp == of_console_device) {
> 
> check does in fact trigger?  The code protected by that conditional is
> the code that implements the importing of OpenFirmware's configured
> resolution.
This check is true.

I also tried hardcoding the values for vxres/vyres/bits_per_pixel => no effect.

If I read my printk's correct the screen output are "destroyed" when I enter
this code:

(in aty_init() )

        if (par->pll_ops->init_pll)
                par->pll_ops->init_pll(info, &par->pll);
        if (par->pll_ops->resume_pll)
                par->pll_ops->resume_pll(info, &par->pll);    <<<<<=======

        /*
         * Last page of 8 MB (4 MB on ISA) aperture is MMIO,
         * unless the auxiliary register aperture is used.
         */
        if (!par->aux_start &&
            (info->fix.smem_len == 0x800000 ||
             (par->bus_type == ISA && info->fix.smem_len == 0x400000)))
                info->fix.smem_len -= GUI_RESERVE;

I see the debug printk just before:
debug atyfb: BUS_CNTL DAC_CNTL MEM_CNTL EXT_MEM_CNTL CRTC_GEN_CNTL DSP_CONFIG DSP_ON_OFF CLOCK_CNTL
debug atyfb: 7b33a040 86010102 10251a3b e000c81 03002200 ... 7405d4 00031400
debug atyfb: PLL ad d5 40 44 f9 03 01 a3 8e 9e 65 01 80 00 00 .. f6 ac 03 40 80 24 fd 00 00 00 02 0b ac 0b ac 14 24 fd 80

Note: This is with the Hewlett Packard hp 1502 LCD monitor connected.

[Typed from a video from my camera - beware of typing bugs]

... testing ...
If I comment out the call to resume_pll() then I no longer see garbled output.

My boot hangs a bit later - but this is unrelated (I think).
Can be due to my rootfs image.

I did not get it closer this time around.

	Sam
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David Miller - Jan. 10, 2011, 9:17 p.m.
From: Sam Ravnborg <sam@ravnborg.org>
Date: Mon, 10 Jan 2011 20:32:51 +0100

> If I comment out the call to resume_pll() then I no longer see garbled output.

Yeah, that just makes it simply not program the PLL at all.

I just booted Linus's current tree on my Samsung 216BW and it works
just fine.  I'll try a few other monitors I have.

If you have the time can you try these two tests?

1) In atyfb_setup_sparc(), comment out the whole block of code protected
   by:

	if (IS_XL(pdev->device)) {
		/*
		 * Fix PROMs idea of MEM_CNTL settings...
		 */

2) Force the:

	dp = pci_device_to_OF_node(pdev);
	if (dp == of_console_device) {

   test to fail.

I've always been suspect of all of the special mode and MEM_CNTRL handling
we have here for Sparc.  If disabling it fixes stuff, I'd happily see this
code get tossed out completely.

Thanks!
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Sam Ravnborg - Jan. 10, 2011, 10:03 p.m.
On Mon, Jan 10, 2011 at 01:17:05PM -0800, David Miller wrote:
> From: Sam Ravnborg <sam@ravnborg.org>
> Date: Mon, 10 Jan 2011 20:32:51 +0100
> 
> > If I comment out the call to resume_pll() then I no longer see garbled output.
> 
> Yeah, that just makes it simply not program the PLL at all.
> 
> I just booted Linus's current tree on my Samsung 216BW and it works
> just fine.  I'll try a few other monitors I have.
> 
> If you have the time can you try these two tests?
> 
> 1) In atyfb_setup_sparc(), comment out the whole block of code protected
>    by:
> 
> 	if (IS_XL(pdev->device)) {
> 		/*
> 		 * Fix PROMs idea of MEM_CNTL settings...
> 		 */
> 
> 2) Force the:
> 
> 	dp = pci_device_to_OF_node(pdev);
> 	if (dp == of_console_device) {
> 
>    test to fail.
> 
> I've always been suspect of all of the special mode and MEM_CNTRL handling
> we have here for Sparc.  If disabling it fixes stuff, I'd happily see this
> code get tossed out completely.

I have tried 1) and 2)
Independent and together.

The result was the same in all cases.

I have also tried with a LG Flatron W2425T Monotor - the same result.

On this box I have never had any graphical application running - so
we should also consider that this is a HW bug on my video card.
I found another SB100 on ebay wich I have placed a bid on - maybe I
am lucky to get it.

	Sam
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David Miller - Jan. 10, 2011, 10:07 p.m.
From: Sam Ravnborg <sam@ravnborg.org>
Date: Mon, 10 Jan 2011 23:03:46 +0100

> I have tried 1) and 2)
> Independent and together.
> 
> The result was the same in all cases.
> 
> I have also tried with a LG Flatron W2425T Monotor - the same result.

Thanks for doing this.

> On this box I have never had any graphical application running - so
> we should also consider that this is a HW bug on my video card.

Maybe, maybe not :-)

I'm doubtful because the PROM's programming of the PLL works fine, as
soon as the driver tries to override the settings is when we see
problems.
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David Miller - Jan. 10, 2011, 10:13 p.m.
In order to attack this better, can you possibly get the
".properties" output from the framebuffer device node?

Something like:

ok cd /pci@1f,0/SUNW,m64B@13
ok .properties

at the firmware prompt right after reset should do the trick.

Thanks!
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Fabio M. Di NItto - Jan. 11, 2011, 5:22 a.m.
On 01/10/2011 11:03 PM, Sam Ravnborg wrote:
> On Mon, Jan 10, 2011 at 01:17:05PM -0800, David Miller wrote:
>> From: Sam Ravnborg <sam@ravnborg.org>
>> Date: Mon, 10 Jan 2011 20:32:51 +0100
>>
>>> If I comment out the call to resume_pll() then I no longer see garbled output.
>>
>> Yeah, that just makes it simply not program the PLL at all.
>>
>> I just booted Linus's current tree on my Samsung 216BW and it works
>> just fine.  I'll try a few other monitors I have.
>>
>> If you have the time can you try these two tests?
>>
>> 1) In atyfb_setup_sparc(), comment out the whole block of code protected
>>    by:
>>
>> 	if (IS_XL(pdev->device)) {
>> 		/*
>> 		 * Fix PROMs idea of MEM_CNTL settings...
>> 		 */
>>
>> 2) Force the:
>>
>> 	dp = pci_device_to_OF_node(pdev);
>> 	if (dp == of_console_device) {
>>
>>    test to fail.
>>
>> I've always been suspect of all of the special mode and MEM_CNTRL handling
>> we have here for Sparc.  If disabling it fixes stuff, I'd happily see this
>> code get tossed out completely.
> 
> I have tried 1) and 2)
> Independent and together.
> 
> The result was the same in all cases.
> 
> I have also tried with a LG Flatron W2425T Monotor - the same result.
> 
> On this box I have never had any graphical application running - so
> we should also consider that this is a HW bug on my video card.
> I found another SB100 on ebay wich I have placed a bid on - maybe I
> am lucky to get it.

No panic. I'll try on my SB100 too. I have one original SUN monitor to
test with and a bunch of others. It will just take me a bit more time
due to the headless setup I have at home (need to shuffle stuff around
to make space) :) but we will get there.

Fabio
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Sam Ravnborg - Jan. 11, 2011, 5:44 a.m.
On Mon, Jan 10, 2011 at 02:13:42PM -0800, David Miller wrote:
> 
> In order to attack this better, can you possibly get the
> ".properties" output from the framebuffer device node?
> 
> Something like:
> 
> ok cd /pci@1f,0/SUNW,m64B@13
> ok .properties
> 
> at the firmware prompt right after reset should do the trick.

Here you go:
ok cd SUNW,m64B
ok .properties
address                  fde00000
assigned-addresses       82009810 00000000 03000000 00000000 01000000
                         81009814 00000000 00000b00 00000000 00000100
                         82009818 00000000 00426000 00000000 00002000
                         82009830 00000000 00440000 00000000 00020000
aty,fcode                1.69
aty,card#                109-XXXXX-XX
aty,rom#                 113-XXXXX-100
model                    ATY,RageXL
name                     SUNW,m64B
pgx_version              @(#) pgx24+.fth 1.6 01/02/06
reg                      00009800 00000000 00000000 00000000 00000000
                         02009810 00000000 00000000 00000000 01000000
                         02009818 00000000 00000000 00000000 00001000
                         02009830 00000000 00000000 00000000 00020000
character-set            ISO8859-1
device_type              display
linebytes                00 00 04 00
depth                    00 00 00 08
height                   00 00 03 00
width                    00 00 04 00
fb-memory                00 00 00 08
aty,flags                00 00 00 00
aty,status               00 00 00 04
fast-back-to-back
devsel-speed             00000001
class-code               00030000
interrupts               00000001
latency-timer            00000040
cache-line-size          00000010
max-latency              00000000
min-grant                00000008
revision-id              00000027
device-id                00004752
vendor-id                00001002


I am away for a few days (business trip) - so eventual feedback is delayed :-(

PS. Thanks for putting time into such an ancient system!

	Sam
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Patch

diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index 5bf9123..5a3ce3a 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -2969,10 +2969,8 @@  static int __devinit atyfb_setup_sparc(struct pci_dev *pdev,
 {
 	struct atyfb_par *par = info->par;
 	struct device_node *dp;
-	char prop[128];
-	phandle node;
-	int len, i, j, ret;
 	u32 mem, chip_id;
+	int i, j, ret;
 
 	/*
 	 * Map memory-mapped registers.
@@ -3088,23 +3086,8 @@  static int __devinit atyfb_setup_sparc(struct pci_dev *pdev,
 		aty_st_le32(MEM_CNTL, mem, par);
 	}
 
-	/*
-	 * If this is the console device, we will set default video
-	 * settings to what the PROM left us with.
-	 */
-	node = prom_getchild(prom_root_node);
-	node = prom_searchsiblings(node, "aliases");
-	if (node) {
-		len = prom_getproperty(node, "screen", prop, sizeof(prop));
-		if (len > 0) {
-			prop[len] = '\0';
-			node = prom_finddevice(prop);
-		} else
-			node = 0;
-	}
-
 	dp = pci_device_to_OF_node(pdev);
-	if (node == dp->phandle) {
+	if (dp == of_console_device) {
 		struct fb_var_screeninfo *var = &default_var;
 		unsigned int N, P, Q, M, T, R;
 		u32 v_total, h_total;
@@ -3112,9 +3095,9 @@  static int __devinit atyfb_setup_sparc(struct pci_dev *pdev,
 		u8 pll_regs[16];
 		u8 clock_cntl;
 
-		crtc.vxres = prom_getintdefault(node, "width", 1024);
-		crtc.vyres = prom_getintdefault(node, "height", 768);
-		var->bits_per_pixel = prom_getintdefault(node, "depth", 8);
+		crtc.vxres = of_getintprop_default(dp, "width", 1024);
+		crtc.vyres = of_getintprop_default(dp, "height", 768);
+		var->bits_per_pixel = of_getintprop_default(dp, "depth", 8);
 		var->xoffset = var->yoffset = 0;
 		crtc.h_tot_disp = aty_ld_le32(CRTC_H_TOTAL_DISP, par);
 		crtc.h_sync_strt_wid = aty_ld_le32(CRTC_H_SYNC_STRT_WID, par);