Commit Graph

39275 Commits

Author SHA1 Message Date
Linus Torvalds 81ce31b773 Merge branch 'for-linus' of git://gitserver.sunplusct.com/linux-2.6-score
* 'for-linus' of git://gitserver.sunplusct.com/linux-2.6-score: (22 commits)
  score: add TIF_NOTIFY_RESUME define in asm/thread_info.h
  score: make init_thread_union align to THREAD_SIZE
  score: update files according to review comments.
  score: add old syscall support
  score: add MEMORY_START and MEMORY_SIZE define, to make the code clear
  score: update inconsistent declare after .c was changed
  score: remove unused code, add include files in .c
  score: clean up mm/init.c
  score: make irq.h definitions local
  score: cleanups: dead code, 0 as pointer, shadowed variables
  score: fix function prototypes
  score: add address space annotations
  score: add missing #includes
  score: move save arg5 and arg6 instruction in front of enable_irq
  score: add prototypes for wrapped syscalls
  score: remove init_mm
  score: add generic sys_call_table
  score: remove __{put,get}_user_unknown
  score: unset __ARCH_WANT_IPC_PARSE_VERSION
  score: update files according to review comments
  ...
2009-09-18 09:45:08 -07:00
Linus Torvalds 515b696b28 Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (262 commits)
  sh: mach-ecovec24: Add user debug switch support
  sh: Kill off unused se_skipped in alignment trap notification code.
  sh: Wire up HAVE_SYSCALL_TRACEPOINTS.
  video: sh_mobile_lcdcfb: use both register sets for display panning
  video: sh_mobile_lcdcfb: implement display panning
  sh: Fix up sh7705 flush_dcache_page() build.
  sh: kfr2r09: document the PLL/FLL <-> RF relationship.
  sh: mach-ecovec24: need asm/clock.h.
  sh: mach-ecovec24: deassert usb irq on boot.
  sh: Add KEYSC support for EcoVec24
  sh: add kycr2_delay for sh_keysc
  sh: cpufreq: Include CPU id in info messages.
  sh: multi-evt support for SH-X3 proto CPU.
  sh: clkfwk: remove bogus set_bus_parent() from SH7709.
  sh: Fix the indication point of the liquid crystal of AP-325RXA(AP3300)
  sh: Add EcoVec24 romImage defconfig
  sh: USB disable process is needed if romImage boot for EcoVec24
  sh: EcoVec24: add HIZA setting for LED
  sh: EcoVec24: write MAC address in boot
  sh: Add romImage support for EcoVec24
  ...
2009-09-18 09:43:09 -07:00
Linus Torvalds fa877c71e2 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] Clean up linker script using standard macros.
  [IA64] Use standard macros for page-aligned data.
  [IA64] Use .ref.text, not .text.init for start_ap.
  [IA64] sgi-xp: fix printk format warnings
  [IA64] ioc4_serial: fix printk format warnings
  [IA64] mbcs: fix printk format warnings
  [IA64] pci_br, fix infinite loop in find_free_ate()
  [IA64] kdump: Short path to freeze CPUs
  [IA64] kdump: Try INIT regardless of
  [IA64] kdump: Mask INIT first in panic-kdump path
  [IA64] kdump: Don't return APs to SAL from kdump
  [IA64] kexec: Unregister MCA handler before kexec
  [IA64] kexec: Make INIT safe while transition to
  [IA64] kdump: Mask MCA/INIT on frozen cpus

Fix up conflict in arch/ia64/kernel/vmlinux.lds.S as per Tony's
suggestion.
2009-09-18 09:33:07 -07:00
Linus Torvalds 6f130478e2 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (55 commits)
  regulator: Voltage count for AB3100
  mfd: Convert WM8350 to use request_threaded_irq()
  mfd: Update MAINTAINERS patterns for WM831x
  mfd: Fix twl4030-power warnings
  regulator: AB3100 support
  rtc: AB3100 RTC support
  mfd: Fix ab3100-otp build failure
  mfd: OMAP: Board-specifc twl4030 DPS scripts for RX51 board
  mfd: Print warning for twl4030 out-of-order script loading
  mfd: Add support for TWL4030/5030 dynamic power switching
  mfd: AB3100 OTP readout
  regulator: Add Freescale MC13783 driver
  mfd: Add Freescale MC13783 driver
  mfd: AB3100 disable irq nosync
  mfd: AB3100 alter default setting
  mfd: AB3100 propagate error
  mfd: AB3100 accessor function cleanups
  rtc: Add support for RTCs on Wolfson WM831x devices
  regulator: get pcap data from the parent device
  input: PCAP2 misc input driver
  ...
2009-09-18 09:22:36 -07:00
Linus Torvalds 6f128fa344 Merge branch 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci
* 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci: (62 commits)
  DaVinci: DM646x - platform changes for vpif capture and display drivers
  davinci: DM355 - platform changes for vpfe capture
  davinci: DM644x platform changes for vpfe capture
  davinci: audio: move tlv320aic33 i2c setup into board files
  DaVinci: EDMA: Adding 2 new APIs for allocating/freeing PARAMs
  DaVinci: DM365: Adding entries for DM365 IRQ's
  DaVinci: DM355: Adding PINMUX entries for DM355 Display
  davinci: Handle pinmux conflict between mmc/sd and nor flash
  davinci: Add NOR flash support for da850/omap-l138
  davinci: Add NAND flash support for DA850/OMAP-L138
  davinci: Add MMC/SD support for da850/omap-l138
  davinci: Add platform support for da850/omap-l138 GLCD
  davinci: Macro to convert GPIO signal to GPIO pin number
  davinci: Audio support for DA850/OMAP-L138 EVM
  davinci: Audio support for DA830 EVM
  davinci: Correct the number of GPIO pins for da850/omap-l138
  davinci: Configure MDIO pins for EMAC
  DaVinci: DM365: Add Support for new Revision of silicon
  DaVinci: DM365: Fix Compilation issue due to PINMUX entry
  DaVinci: EDMA: Updating default queue handling
  ...
2009-09-18 09:20:37 -07:00
Linus Torvalds 73c583e4e2 Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (47 commits)
  OMAP clock: use debugfs_remove_recursive() for rewinding
  OMAP2/3/4 core: create omap_device layer
  OMAP: omap_hwmod: call omap_hwmod init at boot; create interconnects
  OMAP2/3/4: create omap_hwmod layer
  OMAP2/3 board-*.c files: read bootloader configuration earlier
  OMAP2/3/4 PRCM: add module IDLEST wait code
  OMAP2/3 PM: create the OMAP PM interface and add a default OMAP PM no-op layer
  OMAP3 clock: remove superfluous calls to omap2_init_clk_clkdm
  OMAP clock: associate MPU clocks with the mpu_clkdm
  OMAP3 clock: Fixed processing of bootarg 'mpurate'
  OMAP: SDRC: Add several new register definitions
  OMAP: powerdomain: Fix overflow when doing powerdomain deps lookups.
  OMAP: PM: Added suspend target state control to debugfs for OMAP3
  OMAP: PM debug: Add PRCM register dump support
  OMAP: PM debug: make powerdomains use PM-debug counters
  OMAP: PM: Add pm-debug counters
  OMAP: PM: Add closures to clkdm_for_each and pwrdm_for_each.
  OMAP: PM: Hook into PM counters
  OMAP: PM counter infrastructure.
  OMAP3: PM: fix lockdep warning caused by omap3_pm_init
  ...
2009-09-18 09:19:26 -07:00
Linus Torvalds 714af06938 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] Fix NULL ptr regression in powernow-k8
  [CPUFREQ] Create a blacklist for processors that should not load the acpi-cpufreq module.
  [CPUFREQ] Powernow-k8: Enable more than 2 low P-states
  [CPUFREQ] remove rwsem lock from CPUFREQ_GOV_STOP call (second call site)
  [CPUFREQ] ondemand - Use global sysfs dir for tuning settings
  [CPUFREQ] Introduce global, not per core: /sys/devices/system/cpu/cpufreq
  [CPUFREQ] Bail out of cpufreq_add_dev if the link for a managed CPU got created
  [CPUFREQ] Factor out policy setting from cpufreq_add_dev
  [CPUFREQ] Factor out interface creation from cpufreq_add_dev
  [CPUFREQ] Factor out symlink creation from cpufreq_add_dev
  [CPUFREQ] cleanup up -ENOMEM handling in cpufreq_add_dev
  [CPUFREQ] Reduce scope of cpu_sys_dev in cpufreq_add_dev
  [CPUFREQ] update Doc for cpuinfo_cur_freq and scaling_cur_freq
2009-09-18 09:16:57 -07:00
Linus Torvalds a03fdb7612 Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (34 commits)
  time: Prevent 32 bit overflow with set_normalized_timespec()
  clocksource: Delay clocksource down rating to late boot
  clocksource: clocksource_select must be called with mutex locked
  clocksource: Resolve cpu hotplug dead lock with TSC unstable, fix crash
  timers: Drop a function prototype
  clocksource: Resolve cpu hotplug dead lock with TSC unstable
  timer.c: Fix S/390 comments
  timekeeping: Fix invalid getboottime() value
  timekeeping: Fix up read_persistent_clock() breakage on sh
  timekeeping: Increase granularity of read_persistent_clock(), build fix
  time: Introduce CLOCK_REALTIME_COARSE
  x86: Do not unregister PIT clocksource on PIT oneshot setup/shutdown
  clocksource: Avoid clocksource watchdog circular locking dependency
  clocksource: Protect the watchdog rating changes with clocksource_mutex
  clocksource: Call clocksource_change_rating() outside of watchdog_lock
  timekeeping: Introduce read_boot_clock
  timekeeping: Increase granularity of read_persistent_clock()
  timekeeping: Update clocksource with stop_machine
  timekeeping: Add timekeeper read_clock helper functions
  timekeeping: Move NTP adjusted clock multiplier to struct timekeeper
  ...

Fix trivial conflict due to MIPS lemote -> loongson renaming.
2009-09-18 09:15:24 -07:00
Jack Steiner daf7b9c921 x86: SGI UV: Map MMIO-High memory range
UV depends on the MMRHI space being identity mapped. The patch:

	x86: Make 64-bit efi_ioremap use ioremap on MMIO regions

changed this to make efi regions at a different address using
ioremap. Add the identity mapping to uv_system_init.

( Note this code was previously present but was deleted when BIOS
  added the ranges to the EFI map - previous efi code identify
  mapped the ranges. )

Signed-off-by: Jack Steiner <steiner@sgi.com>
LKML-Reference: <20090909154339.GA7946@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-18 14:06:40 +02:00
Jack Steiner 8dc579e868 x86: SGI UV: Add volatile semantics to macros that access chipset registers
Add volatile-semantics to the SGI UV read/write macros that are
used to access chipset memory mapped registers. No direct
references to volatile are made. Instead the readq/writeq macros
are used.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: linux-mm@kvack.org
Cc: dwalker@fifo99.com
Cc: cfriesen@nortel.com
LKML-Reference: <20090910143149.GA14273@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-18 14:05:32 +02:00
Jack Steiner d2374aecda x86: SGI UV: Fix IPI macros
The UV BIOS has changed the way interrupt remapping is being done.
This affects the id used for sending IPIs. The upper id bits no
longer need to be masked off.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: <stable@kernel.org>
LKML-Reference: <20090909154104.GA25083@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-18 14:04:25 +02:00
Daniel Walker c2777f98c2 x86: apic: Convert BUG() to BUG_ON()
This was done using Coccinelle's BUG_ON semantic patch.

Signed-off-by: Daniel Walker <dwalker@fifo99.com>
Cc: Julia Lawall <julia@diku.dk>
LKML-Reference: <1252777220-30796-1-git-send-email-dwalker@fifo99.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-18 13:45:33 +02:00
Andi Kleen bc3eb7076b x86: Remove final bits of CONFIG_X86_OLD_MCE
Caught by Linus.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
[ fixed up context conflict manually. ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-18 08:31:23 +02:00
Linus Torvalds df58bee21e Merge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (21 commits)
  x86, mce: Fix compilation with !CONFIG_DEBUG_FS in mce-severity.c
  x86, mce: CE in last bank prevents panic by unknown MCE
  x86, mce: Fake panic support for MCE testing
  x86, mce: Move debugfs mce dir creating to mce.c
  x86, mce: Support specifying raise mode for software MCE injection
  x86, mce: Support specifying context for software mce injection
  x86, mce: fix reporting of Thermal Monitoring mechanism enabled
  x86, mce: remove never executed code
  x86, mce: add missing __cpuinit tags
  x86, mce: fix "mce" boot option handling for CONFIG_X86_NEW_MCE
  x86, mce: don't log boot MCEs on Pentium M (model == 13) CPUs
  x86: mce: Lower maximum number of banks to architecture limit
  x86: mce: macros to compute banks MSRs
  x86: mce: Move per bank data in a single datastructure
  x86: mce: Move code in mce.c
  x86: mce: Rename CONFIG_X86_NEW_MCE to CONFIG_X86_MCE
  x86: mce: Remove old i386 machine check code
  x86: mce: Update X86_MCE description in x86/Kconfig
  x86: mce: Make CONFIG_X86_ANCIENT_MCE dependent on CONFIG_X86_MCE
  x86, mce: use atomic_inc_return() instead of add by 1
  ...

Manually fixed up trivial conflicts:
	Documentation/feature-removal-schedule.txt
	arch/x86/kernel/cpu/mcheck/mce.c
2009-09-17 21:07:08 -07:00
Linus Torvalds dcbf77b9e8 Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (37 commits)
  sched: Fix SD_POWERSAVING_BALANCE|SD_PREFER_LOCAL vs SD_WAKE_AFFINE
  sched: Stop buddies from hogging the system
  sched: Add new wakeup preemption mode: WAKEUP_RUNNING
  sched: Fix TASK_WAKING & loadaverage breakage
  sched: Disable wakeup balancing
  sched: Rename flags to wake_flags
  sched: Clean up the load_idx selection in select_task_rq_fair
  sched: Optimize cgroup vs wakeup a bit
  sched: x86: Name old_perf in a unique way
  sched: Implement a gentler fair-sleepers feature
  sched: Add SD_PREFER_LOCAL
  sched: Add a few SYNC hint knobs to play with
  sched: Fix sync wakeups again
  sched: Add WF_FORK
  sched: Rename sync arguments
  sched: Rename select_task_rq() argument
  sched: Feature to disable APERF/MPERF cpu_power
  x86: sched: Provide arch implementations using aperf/mperf
  x86: Add generic aperf/mperf code
  x86: Move APERF/MPERF into a X86_FEATURE
  ...

Fix up trivial conflict in arch/x86/include/asm/processor.h due to
nearby addition of amd_get_nb_id() declaration from the EDAC merge.
2009-09-17 21:00:02 -07:00
Linus Torvalds ca043a66ae Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, pat: don't use rb-tree based lookup in reserve_memtype()
  x86: Increase MIN_GAP to include randomized stack
2009-09-17 20:58:11 -07:00
Linus Torvalds 1218259b2d Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (44 commits)
  vsnprintf: remove duplicate comment of vsnprintf
  softirq: add BLOCK_IOPOLL to softirq_to_name
  oprofile: fix oprofile regression: select RING_BUFFER_ALLOW_SWAP
  tracing: switch function prints from %pf to %ps
  vsprintf: add %ps that is the same as %pS but is like %pf
  tracing: Fix minor bugs for __unregister_ftrace_function_probe
  tracing: remove notrace from __kprobes annotation
  tracing: optimize global_trace_clock cachelines
  MAINTAINERS: Update tracing tree details
  ftrace: document function and function graph implementation
  tracing: make testing syscall events a separate configuration
  tracing: remove some unused macros
  ftrace: add compile-time check on F_printk()
  tracing: fix F_printk() typos
  tracing: have TRACE_EVENT macro use __flags to not shadow parameter
  tracing: add static to generated TRACE_EVENT functions
  ring-buffer: typecast cmpxchg to fix PowerPC warning
  tracing: add filter event logic to special, mmiotrace and boot tracers
  tracing: remove trace_event_types.h
  tracing: use the new trace_entries.h to create format files
  ...
2009-09-17 20:56:37 -07:00
Linus Torvalds bbe5a96f67 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc: Update defconfigs.
  sparc: Kill PROM console driver.
2009-09-17 20:54:12 -07:00
Linus Torvalds 3dc95666df Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (51 commits)
  MIPS: BCM63xx: Add integrated ethernet mac support.
  MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs.
  MIPS: BCM63xx: Add Broadcom 63xx CPU definitions.
  MIPS: Octeon:  Move some platform device registration to its own file.
  MIPS: Don't corrupt page tables on vmalloc fault.
  MIPS: Shrink the size of tlb handler
  MIPS: Alchemy: override loops_per_jiffy detection
  MIPS: hw_random: Add hardware RNG for Octeon SOCs.
  MIPS: Octeon:  Add hardware RNG platform device.
  MIPS: Remove useless zero initializations.
  MIPS: Alchemy: get rid of allow_au1k_wait
  MIPS: Octeon: Set kernel_uses_llsc to false on non-SMP builds.
  MIPS: Allow kernel use of LL/SC to be separate from the presence of LL/SC.
  MIPS: Get rid of CONFIG_CPU_HAS_LLSC
  MIPS: Malta: Remove pointless use use of CONFIG_CPU_HAS_LLSC
  MIPS: Rewrite clearing of ll_bit on context switch in C
  MIPS: Rewrite sysmips(MIPS_ATOMIC_SET, ...) in C with inline assembler
  MIPS: Consolidate all CONFIG_CPU_HAS_LLSC use in a single C file.
  MIPS: Clean up linker script using new linker script macros.
  MIPS: Use PAGE_SIZE in assembly instead of _PAGE_SIZE.
  ...
2009-09-17 20:52:32 -07:00
H. Peter Anvin 3bb045f1e2 Merge branch 'x86/pat' into x86/urgent
Merge reason:

Suresh Siddha (1):
      x86, pat: don't use rb-tree based lookup in reserve_memtype()

... requires previous x86/pat commits already pushed to Linus.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-09-17 14:40:49 -07:00
Suresh Siddha dcb73bf402 x86, pat: don't use rb-tree based lookup in reserve_memtype()
Recent enhancement of rb-tree based lookup exposed a  bug with the lookup
mechanism in the reserve_memtype() which ensures that there are no conflicting
memtype requests for the memory range.

memtype_rb_search() returns an entry which has a start address <= new start
address. And from here we traverse the linear linked list to check if there
any conflicts with the existing mappings. As the rbtree is based on the
start address of the memory range, it is quite possible that we have several
overlapped mappings whose start address is much less than new requested start
but the end is >= new requested end. This results in conflicting memtype
mappings.

Same bug exists with the old code which uses cached_entry from where
we traverse the linear linked list. But the new rb-tree code exposes this
bug fairly easily.

For now, don't use the memtype_rb_search() and always start the search from
the head of linear linked list in reserve_memtype(). Linear linked list
for most of the systems grow's to few 10's of entries(as we track memory type
of RAM pages using struct page). So we should be ok for now.

We still retain the rbtree and use it to speed up free_memtype() which
doesn't have the same bug(as we know what exactly we are searching for
in free_memtype).

Also use list_for_each_entry_from() in free_memtype() so that we start
the search from rb-tree lookup result.

Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
LKML-Reference: <1253136483.4119.12.camel@sbs-t61.sc.intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-09-17 14:07:58 -07:00
Christian Borntraeger 9a5963eb49 oprofile: fix oprofile regression: select RING_BUFFER_ALLOW_SWAP
commit 85bac32c4a
    ring-buffer: only enable ring_buffer_swap_cpu when needed
broke oprofile (at least on s390, but likely on all platforms).

this patch lets oprofile select RING_BUFER_ALLOW_SWAP to make
ring_buffer_swap_cpu usable for oprofile.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
LKML-Reference: <200909162156.49239.borntraeger@de.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Robert Richter <robert.richter@amd.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-09-17 15:53:42 -04:00
Ingo Molnar 45bd00d31d Merge branch 'linus' into tracing/core
Merge reason: Pick up kernel/softirq.c update for dependent fix.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-17 20:53:10 +02:00
Maxime Bizon 9b1fc55a05 MIPS: BCM63xx: Add integrated ethernet mac support.
Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:53 +02:00
Maxime Bizon e7300d04bd MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs.
Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:52 +02:00
Maxime Bizon 0de663ef86 MIPS: BCM63xx: Add Broadcom 63xx CPU definitions.
Todo: Nothing ever detects CPU_BCM6338 but the code tests for it anyway.

Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:52 +02:00
David Daney 512254ba83 MIPS: Octeon: Move some platform device registration to its own file.
There is a bunch of platform device registration in
arch/mips/cavium-octeon/setup.c.  We move it to its own file in
preparation for adding more platform devices.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:52 +02:00
David Daney 2ca2ebfd95 MIPS: Don't corrupt page tables on vmalloc fault.
The code after the vmalloc_fault: label in do_page_fault() modifies
user page tables, this is not correct for 64-bit kernels.

For 64-bit kernels we should go straight to the no_context handler
skipping vmalloc_fault.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:52 +02:00
Wu Fei e0cc87f594 MIPS: Shrink the size of tlb handler
By combining swapper_pg_dir and module_pg_dir, several if conditions
can be eliminated from the tlb exception handler. The reason they
can be combined is that, the effective virtual address of vmalloc
returned is at the bottom, and of module_alloc returned is at the
top. It also fixes the bug in vmalloc(), which happens when its
return address is not covered by the first pgd.

Signed-off-by: Wu Fei <at.wufei@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:51 +02:00
Manuel Lauss a7bcb1ae60 MIPS: Alchemy: override loops_per_jiffy detection
loops_per_jiffy depends on coreclk speed;  preset it instead of
letting the kernel waste precious microseconds trying to approximate it.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:51 +02:00
David Daney e26449153c MIPS: Octeon: Add hardware RNG platform device.
Add a platform device for the Octeon Random Number Generator (RNG).

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:51 +02:00
Ralf Baechle 982f6ffeee MIPS: Remove useless zero initializations.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:51 +02:00
Manuel Lauss 2882b0c63a MIPS: Alchemy: get rid of allow_au1k_wait
Eliminate the 'allow_au1k_wait' variable.  MIPS kernel installs the
Alchemy-specific wait code before timer initialization;  if the C0
timer must be used for timekeeping the wait function is set to NULL
which means no wait implementation is available.

As a sideeffect, the 'wait instruction available' output in
/proc/cpuinfo now correctly indicates whether 'wait' is usable.

Run-tested on DB1200.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:50 +02:00
David Daney 9d24bafb0d MIPS: Octeon: Set kernel_uses_llsc to false on non-SMP builds.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:50 +02:00
David Daney b791d1193a MIPS: Allow kernel use of LL/SC to be separate from the presence of LL/SC.
On some CPUs, it is more efficient to disable and enable interrupts in the
kernel rather than use ll/sc for atomic operations.  But if we were to set
cpu_has_llsc to false, we would break the userspace futex interface (in
asm/futex.h).

We separate the two concepts, with a new predicate kernel_uses_llsc, that
lets us disable the kernel's use of ll/sc while still allowing the futex
code to use it.

Also there were a couple of cases in bitops.h where we were using ll/sc
unconditionally even if cpu_has_llsc were false.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:50 +02:00
Ralf Baechle f7ade3c168 MIPS: Get rid of CONFIG_CPU_HAS_LLSC
CONFIG_CPU_HAS_LLSC duplicated the function of cpu_has_llsc for no good
reason and and the results if the one was enabled and the other disabled
was very unobvious.  Remove it now that there are no more remaining users.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:50 +02:00
Ralf Baechle b8d6f78cd0 MIPS: Malta: Remove pointless use use of CONFIG_CPU_HAS_LLSC
All CPUs for Malta support LL/SC.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:49 +02:00
Ralf Baechle 43e6ae6d9f MIPS: Rewrite clearing of ll_bit on context switch in C
This also means there is now only one implementation not 3 left.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:49 +02:00
Ralf Baechle f1e39a4a61 MIPS: Rewrite sysmips(MIPS_ATOMIC_SET, ...) in C with inline assembler
This way it doesn't have to use CONFIG_CPU_HAS_LLSC anymore.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:49 +02:00
Ralf Baechle f4c6b6bc5a MIPS: Consolidate all CONFIG_CPU_HAS_LLSC use in a single C file.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:49 +02:00
Nelson Elhage 6eb10bc9e2 MIPS: Clean up linker script using new linker script macros.
This patch results in fewer output sections and in some data being
reordered, but should have no functional impact.

Signed-off-by: Nelson Elhage <nelhage@ksplice.com>
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:49 +02:00
Nelson Elhage a0b54e256d MIPS: Use PAGE_SIZE in assembly instead of _PAGE_SIZE.
Now that PAGE_SIZE is available to assembly directly, there is no need
to separately expose it as _PAGE_SIZE through asm-offsets.

In addition, remove _PAGE_SHIFT from asm-offsets, since it was never
needed, and is not used anywhere.

Signed-off-by: Nelson Elhage <nelhage@ksplice.com>
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:48 +02:00
Christoph Hellwig 24ffce18a4 MIPS: Convert to asm-generic/hardirq.h
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:48 +02:00
Florian Fainelli d47fbb5996 MIPS: AR7: Make board code register ar7_wdt as a platform device
This patch makes the board code register the ar7_wdt driver as a platform
device. We move the dynamic resource calculation here since the driver
should not be aware of the AR7 SoC version it is running on.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:48 +02:00
Wu Zhangjin 6f4c7b32e1 MIPS: Loongson: Update the default config file for fuloong2e
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:48 +02:00
Wu Zhangjin 3702bba5eb MIPS: Loongson: Add GCC 4.4 support for Loongson2E
Because only gcc >=4.4 have loongson-specific support, we need to choose
the suitable -march argument for gcc <= 4.3 and gcc >= 4.4, and here, we
use -march=loongson2e for loongson2e.

Thanks goes to Arnaud Patard <apatard@mandriva.com> for suggestion of
using cc-options(Documentation/kbuild/makefiles.txt). and thanks Zhang
Le for introducing the new CPU_LOONGSON2E kernel option.

NOTE: -mtune option is not need if -march and -mtune use the same value.

Signed-off-by: Zhang Le <r0bertz@gentoo.org>
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:47 +02:00
Wu Zhangjin 3209e70e5e MIPS: Loongson: Add a machtype kernel command line argument
The difference between some loongson-based machines is very small, so, if
there is no necessary to add new kernel config options to cope with this
difference, it will be better to share the same kernel image file between
them, benefit from this, the linux distribution developers only have a need
to compile the kernel one time.

This machtype kernel command line argument will be used later to share the
same kernel image file between two different machines(menglong & yeeloong)
made by lemote.

Thanks very much to Zhang Le for cleaning up the machtype implementation.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:47 +02:00
Wu Zhangjin 85749d24bc MIPS: Loongson: Split common loongson source code out
To share common loongson source code between all of the loongson-based
machines. there is a need to split it out of the fuloong-2e/ directory.
at the same time, other according tuning is needed. the machine-specific
parts are defined as macros in relative header file, pci.h, mem.h,
machine.h.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:47 +02:00
Wu Zhangjin 8e4971175a MIPS: Loongson: Change naming methods
To make source code of loongson sharable to the machines(such as gdium)
made by the other companies, we rename arch/mips/lemote to
arch/mips/loongson, asm/mach-lemote to asm/mach-loongson, and rename lm2e
to the name of the machine: fuloong-2e. accordingly, FULONG are renamed to
FULOONG2E to make it distinguishable to the future FULOONG2F.  and also,
some other relative tuning is needed.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:47 +02:00
Wu Zhangjin 67b35e5d01 MIPS: Loongson: Add oprofile support
This kernel support is needed by the user-space tool:oprofile to profile
linux kernel or applications via loongson2 performance counters. you can
enable this driver via CONFIG_OPROFILE = y or m.

On Loongson2 there are two performance counters, each one can count 16
events respectively. when anyone of the performance counter overflows, an
interrupt will be generated and is routed to the IRQ MIPS_CPU_IRQ_BASE + 6.

Signed-off-by: Yanhua <yanh@lemote.com>
Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:47 +02:00
Wu Zhangjin 92d1b63dba MIPS: Loongson: RTC: Enable legacy RTC driver on fulong
RTC_LIB is selected by MIPS by default, and therefore, the legacy RTC
driver is disabled. but fortunately, RTC_LIB not works on fulong, so,
enabling the legcy RTC driver is needed, otherwise, the tools like
hwclock will not work.

Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:47 +02:00
Wu Zhangjin f7face03c6 MIPS: Loongson: PCI: Clean up pcimap setup
Fixup the wrong original comment of pcimap, and make the source code more
understandable. and also, some new extra consideration is added in.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:46 +02:00
Wu Zhangjin 5e983ff654 MIPS: Loongson: clean up the coding style
With the help of script/checkpatch.pl, i have cleaned up the coding
style.

1. remove un-needed header files and tune some comments.
2. remove some un-needed { }

add a new header file loongson.h:

3. move some common header files to loongson.h
4. move some common extern declartions to loongson.h

and this new header file is needed for future loongson2f support.

Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:46 +02:00
Wu Zhangjin bd92aa013e MIPS: Loongson: Split the implementation of prom and setup parts
This patch split the old initilization and setup implementation to
several file, one file one logic function.

the other main changes include:

	1. as the script/checkpatch.pl suggests, use strict_strtol instead
	of simple_strtol in arch/mips/lemote/lm2e/cmdline.c

	2. use the existed macros in asm/mips-boards/bonito64.h as the
	arguments of set_io_port_base() and remove the un-needed ones in
	asm/mach-lemote/pci.h

Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:46 +02:00
Wu Zhangjin f54a40ee6b MIPS: Loongson: PCI: use existing mips_io_port_base
mips_io_port_base is initialized via set_io_port_base() in
arch/mips/lemote/lm2e/setup.c, we can use it directly here.

Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:46 +02:00
Wu Zhangjin f256a5775a MIPS: Loongson: pm: clean up the reboot support
Several magic numbers have been replaced by relative macros, which will be
more readable and understandable.

Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:45 +02:00
Wu Zhangjin 8f0de87fa9 MIPS: Loongson: pm: Remove redundant source code
The implmentation of loongson2e_power_off and loongson2e_halt is almostly
the same, just preserve one of them.

Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:45 +02:00
Wu Zhangjin f6a2740d0c MIPS: Loongson: Add new early_printk implmentation
This patch is based on the implementation in the lm2e-fixes branch of
Philippe's git://git.linux-cisco.org/linux-mips.git and the
malta-specific early_printk implementation.

Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:45 +02:00
Wu Zhangjin 95ff7c9553 MIPS: Loongson: Remove out-of-date board-specific kgdb source code
Since the re-implementation of kgdb by commit
8854700115 the platform-specific version
has become superfluous, remove it.

Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:44 +02:00
Wu Zhangjin efc49ef556 MIPS: Loongson: Remove existing early_printk implementation
Removes the existing implementation of early_printk for fulong.  The old
implementation was based on the outdated board-specific dbg_io.c.

Since commit 8d60a903d9 dbg_io.c is not longer
needed; it will be removed by the next patch, and a new implementation of
early_printk will be added later.

Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:44 +02:00
Ralf Baechle eb42306b7a MIPS: IP22, IP28: Build with -Werror
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:44 +02:00
Ralf Baechle 03bf6ad9d8 MIPS: FW: Build with -Werror
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:44 +02:00
Ralf Baechle 38c9fb743f MIPS: Fulong: Convert reset initialization to initcall.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:43 +02:00
Ralf Baechle 1f320d053c MIPS: Malta: Convert reset initialization to initcall.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:43 +02:00
Ralf Baechle 7e17615c45 MIPS: Get rid of duplicate cpu_idle() prototype.
Since 2.6.11-rc1 there is a prototype in <linux/smp.h>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:43 +02:00
Julia Lawall 70ebadc8e3 MIPS: TXx9: Fix error handling.
Error handling code following a kzalloc should free the allocated data.
Error handling code following an ioremap should iounmap the allocated data.

The semantic match that finds the first problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,f1,l;
position p1,p2;
expression *ptr != NULL;
@@

x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...x...+> }
(
x->f1 = E
|
 (x->f1 == NULL || ...)
|
 f(...,x->f1,...)
)
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:43 +02:00
Atsushi Nemoto 13680ade4e MIPS: TXx9: Disable PM capability of TX493[89] internal ether
Some TC35815 variants (i.e. TX493[89] internal ether) report existance of
PM registers though they are not supported.  Disable PM features by
clearing pdev->pm_cap.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:43 +02:00
Nelson Elhage 99502d94c3 MIPS: make page.h constants available to assembly.
page.h includes ifndef __ASSEMBLY__ guards, but PAGE_SIZE and some other
constants are defined using "1UL", which the assembler does not support.
Use the _AC macro from const.h to make them available to assembly (and
linker scripts).

Signed-off-by: Nelson Elhage <nelhage@ksplice.com>
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:42 +02:00
Manuel Lauss 75f4531641 MIPS: Alchemy: add gpio_request/gpio_free stubs for CONFIG_GPIOLIB=n
Some drivers use gpio_request/gpio_free regardless of whether
gpiolib is actually built;  add stubs to work around the ensuing
compile failures.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Tested-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:42 +02:00
Alexey Dobriyan 6de4c6f9c8 MIPS: Lasat: Fix compilation
Header needed for current_cpu_data which expands to smp_processor_id().
However, linux/smp.h can't be included into asm/cpu-info.h due to horrible
circular dependencies, so plug it here.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:42 +02:00
David Daney 2608441164 MIPS: Octeon: Check all CCAs in cvmx_write_csr.
The current code only checks CCA of 0 when deciding if a dummy read is
needed.  Since the kernel can (and does) use other CCAs we need to
mask out the CCA bits from the address.  Since the address constant
now fits in 16 bits, there is an added benefit that smaller code is
generated.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:41 +02:00
Ralf Baechle e3bf887d73 MIPS: Fix potencial build error in <asm/delay.h>
<asm/delay.h> will break if HZ isn't defined.  In 2.6.26 and later we're
usually lucky ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:41 +02:00
Linus Torvalds de55a8958f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  amd64_edac: check NB MCE bank enable on the current node properly
  amd64_edac: Rewrite unganged mode code of f10_early_channel_count
  amd64_edac: cleanup amd64_check_ecc_enabled
  x86, EDAC: Provide function to return NodeId of a CPU
  amd64_edac: build driver only on AMD hardware
2009-09-17 09:55:52 -07:00
Linus Torvalds abf5940dad Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (75 commits)
  Blackfin: update ftrace for latest toolchain
  Blackfin: fix elf_fpregset_t definition
  Blackfin: unify cache init functions
  Blackfin: swap clocksource ratings for gptimer/cycles
  Blackfin: update ftrace_push_return_trace() breakage
  Blackfin: update cm board resources
  Blackfin: cm-bf537u: split board from cm-bf537e
  Blackfin: bf538-ezkit: add SPI IRQ resources
  Blackfin: increase default async timings for parallel flashes
  Blackfin: add ICPLB coverage for async banks
  Blackfin: use KERN_ALERT in all kgdb_test output
  Blackfin: fix BF54x SPI CS resources
  Blackfin: fix typo in isram_write()
  Blackfin: bf537-stamp: add adp5588 gpio resources
  Blackfin: add some isram-driver self tests
  Blackfin: workaround anomaly 05000283
  Blackfin: fix spelling in a few comments
  Blackfin: use raw_smp_processor_id() in exception code
  Blackfin: remove useless duplicated assignment in gpio code
  Blackfin: Fix link errors with binutils 2.19 and GCC 4.3
  ...
2009-09-17 09:53:04 -07:00
Linus Torvalds 66bc4a6f34 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (53 commits)
  m68knommu: Make PAGE_SIZE available to assembly files.
  m68knommu: fix ColdFire definition of CLOCK_TICK_RATE
  m68knommu: set multi-function pins for ethernet when enabled
  m68knommu: remove special interrupt handling code for ne2k support
  m68knommu: relax IO_SPACE_LIMIT setting
  m68knommu: remove ColdFire direct interrupt register access
  m68knommu: create a speciailized ColdFire 5272 interrupt controller
  m68knommu: add support for second interrupt controller of ColdFire 5249
  m68knommu: clean up old ColdFire timer irq setup
  m68knommu: map ColdFire interrupts to correct masking bits
  m68knommu: clean up ColdFire 532x CPU timer setup
  m68knommu: simplify ColdFire "timers" clock initialization
  m68knommu: support code to mask external interrupts on old ColdFire CPU's
  m68knommu: merge old ColdFire interrupt controller masking macros
  m68knommu: remove duplicate ColdFire mcf_autovector() code
  m68knommu: move ColdFire INTC definitions to new include file
  m68knommu: mask off all interrupts in ColdFire intc-simr controller
  m68knommu: remove timer device interrupt setup for ColdFire 532x
  m68knommu: remove interrupt masking from ColdFire pit timer
  m68knommu: remove unecessary interrupt level setting in ColdFire 520x setup
  ...
2009-09-17 09:52:43 -07:00
Amit Kucheria 9312fffbad mfd: OMAP: Board-specifc twl4030 DPS scripts for RX51 board
Add support for Dynamic Power Switching (DPS) for the RX51 board.

These scripts are still a work-in-progress. I'll keep sending patches to
update the scripts as they are optimised.

Signed-off-by: Amit Kucheria <amit.kucheria@verdurent.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17 09:47:23 +02:00
Kuninori Morimoto 064a16dc41 sh: mach-ecovec24: Add user debug switch support
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-09-17 15:07:00 +09:00
Chen Liqin 9973affe9b score: add TIF_NOTIFY_RESUME define in asm/thread_info.h 2009-09-17 12:05:56 +08:00
Yi Li 5bf9cbef99 Blackfin: update ftrace for latest toolchain
The mcount support that was finally added to the Blackfin gcc port isn't
exactly the same as what ftrace was developed against.  Now that the final
gcc version is in place, update the ftrace code to match.

While updating this, fix the swapped arguments to the tracer (signature is
(ip, parent_ip) while we were passing (parent_ip, ip)).

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:52 -04:00
Mike Frysinger 3b67d91b3e Blackfin: fix elf_fpregset_t definition
The elf_fpregset_t type relied on an empty struct in the asm/user.h, but
the transition to asm-generic/user.h dropped that empty struct.  Rather
than restore this useless struct, define the only user (elf_fpregset_t)
as an empty struct itself.  This fixes building when ELF dump support is
enabled.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:51 -04:00
Mike Frysinger ea426e6c62 Blackfin: unify cache init functions
The CPLB implementations (mpu/nompu) had exact copies of the cacheinit
code.  Even the i/d cache functions are largely the same.  So unify them
both in the common kernel cache code.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:49 -04:00
Graf Yang e78feaaeeb Blackfin: swap clocksource ratings for gptimer/cycles
The cycles clocksource is a higher resolution than the gptimer one, so
make sure the ratings field reflects this.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:48 -04:00
Mike Frysinger 3289651a97 Blackfin: update ftrace_push_return_trace() breakage
Commit 71e308a239 updated ftrace_push_return_trace() prototype but didn't
update the Blackfin ftrace code, so things broke.  Since we don't support
the new stuff yet, call it with stub values.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:47 -04:00
Harald Krapfenbauer 9c21453e37 Blackfin: update cm board resources
Signed-off-by: Harald Krapfenbauer <Harald.Krapfenbauer@bluetechnix.at>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:46 -04:00
Harald Krapfenbauer 6058434468 Blackfin: cm-bf537u: split board from cm-bf537e
The cm-bf537u module, while similar to the cm-bf537e, is different enough
to warrant its own resources.  It has a USB controller but no PHY.

Signed-off-by: Harald Krapfenbauer <Harald.Krapfenbauer@bluetechnix.at>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:45 -04:00
Barry Song 769cfc0d08 Blackfin: bf538-ezkit: add SPI IRQ resources
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:43 -04:00
Sonic Zhang 88c28b2df9 Blackfin: increase default async timings for parallel flashes
The default async timings are a little too fast for the parallel flash
that is attached by default to the async banks.  So slow things down a bit
so accessing the hardware is stable.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:42 -04:00
Bernd Schmidt 4663f6ef25 Blackfin: add ICPLB coverage for async banks
When doing XIP, we need to execute out of the async banks, so we need
ICPLBs to allow this.

Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:42 -04:00
Mingquan Pan 4a3e53c1c4 Blackfin: use KERN_ALERT in all kgdb_test output
Most messages are already using KERN_ALERT, so be consistent to make
things easier to check with test scripts.

Signed-off-by: Mingquan Pan <grace.pan@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:40 -04:00
Yi Li 4e4d496ee3 Blackfin: fix BF54x SPI CS resources
The BF54x has three slave select signals for SPI0/SPI1, not eight.

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:39 -04:00
Robin Getz 774b80229f Blackfin: fix typo in isram_write()
The DTEST write bit is 2, not 1.  Improve comments in the related macro
while we're here.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:38 -04:00
Michael Hennerich ba877d4491 Blackfin: bf537-stamp: add adp5588 gpio resources
For the adp5588 GPIO daughter card.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:37 -04:00
Mike Frysinger c40cdb2cbd Blackfin: add some isram-driver self tests
Make it easy to figure out if code changes here are correct.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:36 -04:00
Robin Getz dedfd5d7f2 Blackfin: workaround anomaly 05000283
Make sure our interrupt entry code with exact hardware errors handles
anomaly 05000283 (infinite stall in system MMR kill) so we don't stall
while under load.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:34 -04:00
Michael Hennerich 05d17dfaab Blackfin: fix spelling in a few comments
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:33 -04:00
Yi Li b6dbde27dd Blackfin: use raw_smp_processor_id() in exception code
When preempt debugging is enabled, smp_processor_id() may utilize the
"current" structure.  This may not be safe to access under all exceptions
due to it being in dynamically allocated memory.  So in exception code,
make sure we use raw_smp_processor_id() instead to get at the real value
directly.

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:32 -04:00
Michael Hennerich 00dd66d012 Blackfin: remove useless duplicated assignment in gpio code
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:31 -04:00
Ingo Molnar 8d7ac69ffa Blackfin: Fix link errors with binutils 2.19 and GCC 4.3
Not sure whether this has been reported/fixed before.

Today I built a Blackfin tool-chain from scratch for -tip testing,
and it triggers:

 arch/blackfin/kernel/vmlinux.lds:1238: undefined section `.data_a_l1' referenced in expression

and:

 arch/blackfin/kernel/vmlinux.lds:1238: undefined section `.text_data_l1'
referenced in expression

Now i dont have any way to test this linker script, but it now at
least builds fine after fixing what appears to be typos in those
assert statements.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:30 -04:00
Graf Yang 1794131471 Blackfin: handle the core timer interrupt with handle_percpu_irq on SMP
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:29 -04:00
Mike Frysinger 926494943b Blackfin: optimize fixed code handling for the most common case
The majority of the time we are returning to user space, it is not in the
fixed atomic code region.  So rather than branch to a function where we
check the PC and return, do the check inline and branch only when needed.

Also, tweak some of the fixed code handling based on assumptions we are
aware of but cannot be expressed in C.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:28 -04:00
Barry Song dac981740f Blackfin: delete '-spi' suffix in ad1836/ad1938 driver name
The ASoC drivers have dropped the redundant "-spi" suffix in the driver
name, so update the board resources accordingly.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:27 -04:00
Mike Frysinger 3aa670419a Blackfin: punt dead cache locking code
No one uses these functions, and some are duplicate of existing C code.  So
just punt the whole thing.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:25 -04:00
Mike Frysinger 0198b3bcae Blackfin: drop board resources for dead devices (pbx/ad9960)
These hardware devices are dead and the drivers never cleaned up/merged,
so punt the useless board resource info.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:24 -04:00
Yi Li c4baebf268 Blackfin: do not trace the exception handler
Since the exception handler cannot cause exceptions, we cannot trace it
without easily causing double faults and crashing the system.

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:23 -04:00
Mike Frysinger 7b06263bd7 Blackfin: fix BF522/BF523 max VCO mixup
The BF522 and BF523 had their real max VCO values swapped.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:22 -04:00
Graf Yang ad46163ac2 Blackfin: SMP port does not yet support cpu frequency scaling
We have an item to get this fixed, but in the mean time, disable selection
via Kconfig dependencies.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:21 -04:00
Yi Li eb7bd9c461 Blackfin: cleanup sync handling when enabling/disabling cplbs
The handling of updating the [DI]MEM_CONTROL MMRs does not follow proper
sync procedures as laid out in the Blackfin programming manual.  So rather
than audit/fix every call location, create helper functions that do the
right things in order to safely update these MMRs.  Then convert all call
sites to use these new helper functions.

While we're fixing the code, drop the workaround for anomaly 05000125 as
that anomaly applies to old versions of silicon that we do not support.

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:19 -04:00
Barry Song 8312440e05 Blackfin: bf537-stamp: update ad1836 resources
Update the ad1836 resources for the new ASoC driver.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:18 -04:00
Yi Li bd411b15cc Blackfin: update anomaly lists
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:16 -04:00
Barry Song f1cb64625c Blackfin: bf538-ezkit: add resources for parallel flash
The board has some parallel flash hooked up to the async banks, so add
appropriate physmap resources for it.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:15 -04:00
Roel Kluin ac860751eb Blackfin: fix read buffer overflow
Check whether index is within bounds before testing the element.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:13 -04:00
Stefan Pledl 0e101ec12e Blackfin: bf548-ezkit: fix incorrect LCD size parameters
I think we have to use the physical dimensions [mm] of the display for
.width and .heigth in struct bfin_bf54xfb_mach_info bf54x_lq043_data which
are copied to fbinfo->var.height/.width in bf54x-lq043fb.c.

linux/fb.h describes this values as 'height/weight of picture in mm'

Otherwise QT calcs the wrong dpi value and the displayed fonts are very
small.

Signed-off-by: Stefan Pledl <stefan.pledl@mesutronic.de>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:12 -04:00
Barry Song b3dec4a4ff Blackfin: cm-bf527/bf537-stamp: fix dm9000 resources
The dm9000 driver expects two IORESOURCE_MEM to get at the device, so make
sure we declare things properly.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:10 -04:00
Mike Frysinger 8d71e07596 Blackfin: drop unused MMR defines that only cause bad code to be written
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:09:55 -04:00
Michael Hennerich 61f09b5a09 Blackfin: convert boards to use platform data with smc91x
Latest smc91x driver allows you to specify settings in board resources
rather than needing CONFIG_BLACKFIN in the drivers/net/smc91x.h header.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:32:00 -04:00
Barry Song 2fff7f8800 Blackfin: bf537-stamp: drop ATA interrupt probe workaround
The interrupt probe workaround doesn't work without hacks to common code,
and the add-on card only needs a simple resistor to fix the problem, so
drop the board-specific hack.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:31:58 -04:00
Graf Yang 01b9f4b0ed Blackfin: improve double fault debug handling
Since the hardware only provides reporting for the last exception handled,
and the values are valid only when executing the exception handler, we
need to save the context for reporting at a later point.  While we do this
for one exception, it doesn't work properly when handling a second one as
the original exception is clobbered by the double fault.  So when double
fault debugging is enabled, create a dedicated shadow of these values and
save/restore out of there.  Now the crash report properly displays the
first exception as well as the second one.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:31:57 -04:00
Cliff Cai 858c5e9abc Blackfin: bf533-stamp: fix typo in SPI frequency for ad1836 codec
One too many zeros means we run way faster than the codec can handle.

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:31:56 -04:00
Graf Yang 36b8412886 Blackfin: fix MPU handling of invalid memory accesses
The protect_page() function was incorrectly setting up the hardware tables
based on possible access capabilities rather than the actual requested
values.  This means we would grant more access to mmap-ed pages than we
should have.  Once we fix this, we need to tweak the signal generated by
such accesses to aline ourselves with other ports.  This allows the LTP
mmap0{5,6,7} cases to run properly.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:31:55 -04:00
Jean Delvare 8fc4dd9e87 Blackfin: clean up duplicate I2C device type definitions
I2C_BOARD_INFO() already sets .type, no need to set it again.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:31:53 -04:00
Barry Song 427f277e5f Blackfin: bf537-stamp: update AD714x resources
Push the device table to the board resources as data interpretation can be
changed on a per-board basis.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:31:51 -04:00
Sonic Zhang 407505dc01 Blackfin: do not try displaying the end of the stack
The end of the stack may not be valid (and that could be OK), so do not
attempt to parse it.  If we do, we might use a bad pointer in kernel space
which makes things panic().

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:31:50 -04:00
Yi Li 2120b68f31 Blackfin: bf533-stamp: add resources for mmc_spi card
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:31:49 -04:00
Barry Song f41e2fded0 Blackfin: bf538: add bfin_clear_PPI_STATUS() helper
Add the bf538 version of bfin_clear_PPI_STATUS() to match all other ports.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:31:47 -04:00
Stefan Pledl a2f78cfc65 Blackfin: fix BF548 UART0 DMA IRQ translation
The initial BF54x port included some defines to keep code simple across
different processors, but it just ended up causing the UART0 DMA IRQs to
be set to the UART1 channels.

Signed-off-by: Stefan Pledl <stefan.pledl@mesutronic.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:31:46 -04:00
Robin Getz 837ec2d56c Blackfin: catch hardware errors earlier during booting
Allow hardware errors to be caught during early portions of booting, and
leave something in the shadow console that people can use to debug their
system with (to be printed out by the bootloader on next reset).

This enables the hardare error interrupts in head.S, allowing us to find
hardware errors when they happen (well, as much as you can with a hardware
error) and prints out the trace if it is enabled.  This will catch errors
(like booting the wrong image on a 533) which previously resulted in a
infinite loop/hang, as well as random hardware errors before before
setup_arch().

To disable this debug only feature - turn off EARLY_PRINTK.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:31:44 -04:00
Robin Getz 3f871feaf3 Blackfin: add an early shadow console
Add a memory based shadow console to keep a copy of the printk buffer in a
location which can be found externally.  This allows bootloaders to locate
and utilize the log buffer in case of silent (early/resume/etc...) crashes.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:31:43 -04:00
Mike Frysinger 53e18df745 Blackfin: add support for common FDPIC ptrace requests
The FDPIC arches support a standard set of ptrace requests so rather than
define our own custom API, hook up those requests for common code to
leverage.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:31:42 -04:00
Mike Frysinger 81c969a8bc Blackfin: push SRAM locks down into related ifdefs
Rather than defining the locks and initializing them all the time, only do
so when we actually need them (i.e. the SRAM regions exist).  This avoids
dead data and code bloat during runtime.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:31:41 -04:00
Sonic Zhang 9c954f8941 Blackfin: unify duplicated SMP checks in L2 cache kconfig
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:59 -04:00
Michael Hennerich 204844ebd0 Blackfin: rename PCF8574 driver config
The "TWI_KEYPAD" driver was renamed to "INPUT_PCF8574", so update the
defines in the board resources accordingly.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:57 -04:00
Robin Getz 2f812c0bd5 Blackfin: clean up early memory setup code
Remove code duplication, and only print out memory warnings when they are
an actual problem.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:54 -04:00
Mike Frysinger a769094061 Blackfin: fix module reloc handling for all memory regions
The current module relocation code has spotty handling wrt different
memory regions (like L1 instruction).  Rather than try to fix each
little spot, use the new common memory functions to greatly simplify
everything and make sure it is always correct.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:52 -04:00
Mike Frysinger 459fec9073 Blackfin: cleanup module section checking
The current module section handling code has a lot of verbose statements
copied and pasted throughout which makes it pretty hard to digest at a
glance.  By unifying all of these up front, it is a lot easier to quickly
get an idea of what is actually going on.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:51 -04:00
Mike Frysinger 70deca9f9c Blackfin: convert malloc()/memset() to zalloc() in module code
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:49 -04:00
Mike Frysinger dc6b1ac984 Blackfin: cleanup printk() usage in module code
Convert all printk() statements to use the common pr_xxx() funcs and use
the new pr_fmt() function to standardize all of the output.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:48 -04:00
Robin Getz 22532578ee Blackfin: reject outdated/unused/wrong relocation types
All kernel modules are required to be built with -mlong-calls and thus
should not generate any of these relocations.  If they do, it means the
module has not been compiled properly, so rather than trying to handle
them (and running into random run time errors) just error out on module
load to force the module to be compiled correctly.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:46 -04:00
Mike Frysinger c014e15a2f Blackfin: convert ptrace to new memory functions
Now that we have a Blackfin memory function to figure out how to properly
access the different regions, drop the custom memory range checks in our
ptrace code and use that.  It makes the code nicer and fixes bugs where
the ptrace logic wasn't handling all the different regions.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:45 -04:00
Mike Frysinger 18070dd669 Blackfin: cleanup traps decode_address() a bit
Unify the address display to shrink the code, and add missing decoding of
a few special Blackfin-specific regions (L1 ROM and MMRs).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:43 -04:00
Philippe Gerum f4e129399c Blackfin: inline I-pipe bypass code in ret_from_exception
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:42 -04:00
Philippe Gerum 9ea7770fdb Blackfin: sanitize manual control of IPEND[4]
Cleanup is performed in two ways:

- remove extraneous updates of IPEND[4] w/ CONFIG_IPIPE,
  and document remaining use.

- substitute pop-reg-from-stack instructions with plain SP fixups in
  all save-RETI-then-discard patterns.

Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:40 -04:00
Philippe Gerum 7a7967dc1b Blackfin: document __ipipe_call_irqtail
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:38 -04:00
Philippe Gerum 70f4720232 Blackfin: allow EVT5 to preempt irqtail prologue (CONFIG_DEBUG_HWERR)
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:37 -04:00
Philippe Gerum fc9afb997f Blackfin: reuse evt_evt14 handler to perform irqtail epilogue
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:36 -04:00
Philippe Gerum 9703a73c98 Blackfin: use generic name for EVT14 handler
The purpose of the EVT14 handler may depend on whether CONFIG_IPIPE is
enabled, albeit its implementation can be the same in both cases. When
the interrupt pipeline is enabled, EVT14 can be used to raise the core
priority level for the running code; when CONFIG_IPIPE is off, EVT14
can be used to lower this level before running softirq handlers.

Rename evt14_softirq to evt_evt14 to pick an identifier that fits
both, which allows to reuse the same vector setup code as well.

Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:34 -04:00
Philippe Gerum 6b8019c85e Blackfin: allow high priority domains to preempt schedule_tail()
ret_from_fork is always entered with hw interrupts off, which prevents
real-time domains to preempt the Linux kernel during part of the
initial context switch to the new task, which could in turn raise the
worst-case latency figures.

To avoid this, stall the root domain stage in the interrupt pipeline
to keep the scheduling tail code free from Linux-handled IRQs, then
enable hardware interrupts again.

Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:33 -04:00
Philippe Gerum bc569f1a77 Blackfin: export show_stack() to modules
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:32 -04:00
Philippe Gerum b9c7eb498d Blackfin: fix misnomer of some I-pipe helpers
__ipipe_{stall, unstall}_root_raw() identifiers may leave the reader
under the impression that only the virtual state is affected by these
operations, which is wrong. Pick names following the convention used
throughout the interrupt pipeline code.

Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:30 -04:00
Philippe Gerum d8ca63955a Blackfin: checkpatch --file arch/blackfin/kernel/ipipe.c
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:29 -04:00
Robin Getz ae4f073c40 Blackfin: make EVT3->EVT5 lowering more robust wrt IPEND[4]
We handle many exceptions at EVT5 (hardware error level) so that we can
catch exceptions in our exception handling code.  Today - if the global
interrupt enable bit (IPEND[4]) is set (interrupts disabled) our trap
handling code goes into a infinite loop, since we need interrupts to be
on to defer things to EVT5.

Normal kernel code should not trigger this for any reason as IPEND[4] gets
cleared early (when doing an interrupt context save) and the kernel stack
there should be sane (or something much worse is happening in the system).
But there have been a few times where this has happened, so this change
makes sure we dump a proper crash message even when things have gone south.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:28 -04:00