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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86Linus Torvalds2007-11-2615-10/+91
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: x86: fix APIC related bootup crash on Athlon XP CPUs time: add ADJ_OFFSET_SS_READ x86: export the symbol empty_zero_page on the 32-bit x86 architecture x86: fix kprobes_64.c inlining borkage pci: use pci=bfsort for HP DL385 G2, DL585 G2 x86: correctly set UTS_MACHINE for "make ARCH=x86" lockdep: annotate do_debug() trap handler x86: turn off iommu merge by default x86: fix ACPI compile for LOCAL_APIC=n x86: printk kernel version in WARN_ON and other dump_stack users ACPI: Set max_cstate to 1 for early Opterons. x86: fix NMI watchdog & 'stopped time' problem
| * x86: fix APIC related bootup crash on Athlon XP CPUsIngo Molnar2007-11-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | warmbloodedcreature@gmail.com reported that an APIC-enabled Asus a7v8x-x with an Athlon XP reboots early in the bootup: http://bugzilla.kernel.org/show_bug.cgi?id=8723 after a long marathon of spontaneous-reboot debugging, it turns out to be caused by sync_Arb_ids(). AMD CPUs never really needed this sequence anyway, so just return early if we meet an AMD CPU. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * time: add ADJ_OFFSET_SS_READJohn Stultz2007-11-262-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Michael Kerrisk reported that a long standing bug in the adjtimex() system call causes glibc's adjtime(3) function to deliver the wrong results if 'delta' is NULL. add the ADJ_OFFSET_SS_READ API detail, which will be used by glibc to fix this API compatibility bug. Also see: http://bugzilla.kernel.org/show_bug.cgi?id=6761 [ mingo@elte.hu: added patch description and made it backwards compatible ] NOTE: the new flag is defined 0xa001 so that it returns -EINVAL on older kernels - this way glibc can use it safely. Suggested by Ulrich Drepper. Acked-by: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: export the symbol empty_zero_page on the 32-bit x86 architectureTheodore Ts'o2007-11-261-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | The latest KVM driver wants to use the empty_zero_page symbol, and it's not exported in 32-bit x86 (although it is exported by x86_64, s390, and uml architectures). Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: tglx@linutronix.de Cc: linux-kernel@vger.kernel.com Cc: kvm-devel@lists.sourceforge.net Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix kprobes_64.c inlining borkageAndrew Morton2007-11-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix: arch/x86/kernel/kprobes_64.c: In function 'set_current_kprobe': arch/x86/kernel/kprobes_64.c:152: sorry, unimplemented: inlining failed in call to 'is_IF_modifier': recursive inlining arch/x86/kernel/kprobes_64.c:166: sorry, unimplemented: called from here Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: mingo@elte.hu Cc: akpm@linux-foundation.org Cc: tglx@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * pci: use pci=bfsort for HP DL385 G2, DL585 G2Michal Schmidt2007-11-261-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | HP ProLiant systems DL385 G2 and DL585 G2 need pci=bfsort to enumerate PCI devices in the expected order. Matt sayeth: biosdevname is a userspace app I wrote to help solve this so we don't need to patch the kernel for future systems. It's not integrated into any distributions properly yet, but is included in openSUSE 10.3 and Fedora 8 for people who want to download and install it there. It acts as a udev helper. For the time being, patching the kernel is necessary. I really hope biosdevname eliminates that need in future distributions. http://linux.dell.com/biosdevname/ Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Acked-by: Andy Gospodarek <andy@greyhouse.net> Cc: mingo@elte.hu Cc: andy@greyhouse.net Cc: john.cagle@hp.com Cc: Matt Domsch <Matt_Domsch@dell.com> Cc: Greg KH <greg@kroah.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: correctly set UTS_MACHINE for "make ARCH=x86"Andreas Herrmann2007-11-261-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | x86: correctly set UTS_MACHINE for "make ARCH=x86" For a kernel built with "make ARCH=x86" the following system information is displayed when running the new kernel $ uname -m x86 On some i386 systems (e.g. K7) we even have the following information $ uname -m x66 This is weird. The usual information for "uname -m" should be "x86_64" on 64-bit and "i386" or "i686" on 32-bit. This patch fixes the issue by setting UTS_MACHINE to "i386" for 32-bit kernel builds and to "x86_64" for 64-bit kernel builds. I.e., "x86" won't be used for UTS_MACHINE anymore. Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andreas Herrmann <aherrman@arcor.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@redhat.com>
| * lockdep: annotate do_debug() trap handlerPeter Zijlstra2007-11-262-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ensure the hardirq state is consistent before using locks. Use the rare trace_hardirqs_fixup() because the trap can happen in any context. resolves this rare lockdep warning: WARNING: at kernel/lockdep.c:2658 check_flags() [<c013571e>] check_flags+0x90/0x140 [<c0138a69>] lock_release+0x4b/0x1d0 [<c0507fea>] notifier_call_chain+0x2a/0x47 [<c050806b>] __atomic_notifier_call_chain+0x64/0x6d [<c0508007>] __atomic_notifier_call_chain+0x0/0x6d [<c050808b>] atomic_notifier_call_chain+0x17/0x1a [<c0131802>] notify_die+0x30/0x34 [<c0506b09>] do_debug+0x3e/0xd4 [<c050658f>] debug_stack_correct+0x27/0x2c [<c04be389>] tcp_rcv_established+0x1/0x620 [<c04c38c2>] tcp_v4_do_rcv+0x2b/0x313 [<c04c56b6>] tcp_v4_rcv+0x467/0x85d [<c0505ff2>] _spin_lock_nested+0x27/0x32 [<c04c5a4d>] tcp_v4_rcv+0x7fe/0x85d [<c04c560e>] tcp_v4_rcv+0x3bf/0x85d [<c04adbb5>] ip_local_deliver_finish+0x11b/0x1b0 [<c04adac8>] ip_local_deliver_finish+0x2e/0x1b0 [<c04ada7b>] ip_rcv_finish+0x27b/0x29a [<c04961e5>] netif_receive_skb+0xfb/0x2a6 [<c04add0f>] ip_rcv+0x0/0x1fb [<c0496354>] netif_receive_skb+0x26a/0x2a6 [<c04961e5>] netif_receive_skb+0xfb/0x2a6 [<c049872e>] process_backlog+0x7f/0xc6 [<c04983ba>] net_rx_action+0xb9/0x1ac [<c0498348>] net_rx_action+0x47/0x1ac [<c01376cb>] trace_hardirqs_on+0x118/0x16b [<c01225e2>] __do_softirq+0x49/0xa2 [<c010595f>] do_softirq+0x60/0xdd [<c0506300>] _spin_unlock_irq+0x20/0x2c [<c0103e4f>] restore_nocheck+0x12/0x15 [<c01440e1>] handle_fasteoi_irq+0x0/0x9b [<c0105a70>] do_IRQ+0x94/0xaa [<c0506300>] _spin_unlock_irq+0x20/0x2c [<c0104832>] common_interrupt+0x2e/0x34 [<c0114703>] native_safe_halt+0x2/0x3 [<c0102c01>] default_idle+0x44/0x65 [<c010257f>] cpu_idle+0x42/0x50 [<c076ea09>] start_kernel+0x26b/0x270 [<c076e317>] unknown_bootoption+0x0/0x196 ======================= irq event stamp: 559190 hardirqs last enabled at (559190): [<c0507316>] kprobe_exceptions_notify+0x299/0x305 hardirqs last disabled at (559189): [<c05067bf>] do_int3+0x1d/0x95 softirqs last enabled at (559172): [<c010595f>] do_softirq+0x60/0xdd softirqs last disabled at (559181): [<c010595f>] do_softirq+0x60/0xdd Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: turn off iommu merge by defaultIngo Molnar2007-11-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | revert this commit for now: commit 948062683004d13ca21c8c05ac052d387978a449 Author: Andi Kleen <ak@suse.de> Date: Fri Oct 19 20:35:03 2007 +0200 x86: enable iommu_merge by default it's causing regressions: http://bugzilla.kernel.org/show_bug.cgi?id=9412 Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: fix ACPI compile for LOCAL_APIC=nThomas Gleixner2007-11-261-0/+1
| | | | | | | | | | | | | | | | | | | | ACPI processor idle code references local_apic_timer_c2_ok, which is not available when LOCAL_APIC is disabled. Define local_apic_timer_c2_ok as a constant, when LOCAL_APIC=n Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: printk kernel version in WARN_ON and other dump_stack usersArjan van de Ven2007-11-262-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | today, all oopses contain a version number of the kernel, which is nice because the people who actually do bother to read the oops get this vital bit of information always without having to ask the reporter in another round trip. However, WARN_ON() and many other dump_stack() users right now lack this information; the patch below adds this. This information is essential for getting people to use their time effectively when looking at these things; in addition, it's essential for tools that try to collect statistics about defects. Please consider, since its so simple and important for long term kernel quality processes. The code is identical between 32/64 bit; a lot of this code should be unified over time, the patch keeps the identical-ness intact. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * ACPI: Set max_cstate to 1 for early Opterons.Alexey Starikovskiy2007-11-263-0/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | AMD Opteron processors before CG revision don't like C-states > 1. This solves the long standing bugzilla #5303 and probably some more on affected machines: http://bugzilla.kernel.org/show_bug.cgi?id=5303 [ tglx@linutronix.de: reworked the patch so it does not wreck ia64 ] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix NMI watchdog & 'stopped time' problemMaciej W. Rozycki2007-11-262-4/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | More than 3 years ago Niclas Gustafsson reported a 'stopped time' problem: > Watching the /proc/interrupts with 10s apart after the "stop". > > [root@s151 root]# more /proc/interrupts > CPU0 > 0: 66413955 local-APIC-edge timer [...] > LOC: 67355837 > ERR: 0 > MIS: 0 > [root@s151 root]# more /proc/interrupts > CPU0 > 0: 66413955 local-APIC-edge timer [...] > LOC: 67379568 > ERR: 0 > MIS: 0 This may be because buggy SMM firmware messes with the 8259A (configured for a transparent mode -- yes that rare "local-APIC-edge" mode is tricky ;-) ) insanely. this should resolve: http://bugzilla.kernel.org/show_bug.cgi?id=2544 http://bugzilla.kernel.org/show_bug.cgi?id=6296 Patch-dusted-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | Merge branch 'for-linus' of ↵Linus Torvalds2007-11-2698-1410/+2325
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (56 commits) Blackfin arch: fix bug when enable uart1 with uart0 disabled => no initial console Blackfin arch: split apart dump_bfin_regs and merge/remove show_regs from process.c, which was largely duplicated Blackfin arch: use common __INIT/__FINIT defines rather than setting the .section ourselves to .init.text Blackfin arch: fix bug when sending signals with the wrong PC, cause gdb get confused Blackfin arch: Ensure we printk out strings with the proper loglevel Blackfin arch: Need to specify ax with the .init.text section, Blackfin arch: Update Kconfig to latest Blackfin silicon datasheets Blackfin arch: update defconfig files Blackfin arch: Fix typo, and add ENDPROC - no functional changes Blackfin arch: convert READY to DMA_READY as it causes build errors in common sound code otherwise Blackfin arch: add defines for the on-chip L1 ROM of BF54x Blackfin arch: cplb and map header file cleanup Blackfin arch: cleanup the cplb declares Blackfin arch: fix broken on BF52x, remove silly checks on processors for L1_SCRATCH defines Blackfin arch: add support for working around anomaly 05000312 Blackfin arch: cleanup BF54x header file and add BF547 definition Blackfin arch: fix building for BF542 processors which only have 1 TWI Blackfin arch: rename _return_from_exception to _bfin_return_from_exception and export it Blackfin arch: move EXPORT_SYMBOL() to C files where the symbol is actually defined Blackfin arch: fix bug NOR Flash MTD mount fail ...
| * | Blackfin arch: fix bug when enable uart1 with uart0 disabled => no initial ↵Sonic Zhang2007-11-211-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | console Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: split apart dump_bfin_regs and merge/remove show_regs from ↵Mike Frysinger2007-11-215-55/+61
| | | | | | | | | | | | | | | | | | | | | | | | process.c, which was largely duplicated Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: use common __INIT/__FINIT defines rather than setting the ↵Mike Frysinger2007-11-211-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | .section ourselves to .init.text Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: fix bug when sending signals with the wrong PC, cause gdb get ↵Robin Getz2007-11-211-6/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | confused We need to send signals with the proper PC, or gdb gets confused, and lots of tests fail. This should fix that. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: Ensure we printk out strings with the proper loglevelRobin Getz2007-11-213-42/+94
| | | | | | | | | | | | | | | | | | Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: Need to specify ax with the .init.text section,Bernd Schmidt2007-11-211-1/+1
| | | | | | | | | | | | | | | Need to specify "ax" with the .init.text section, otherwise the linker will make unique .init.text.1 .. .init.text.3 sections to cope with the flags
| * | Blackfin arch: Update Kconfig to latest Blackfin silicon datasheetsRobin Getz2007-11-211-5/+5
| | | | | | | | | | | | | | | | | | Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: update defconfig filesMike Frysinger2007-11-218-218/+146
| | | | | | | | | | | | | | | | | | Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: Fix typo, and add ENDPROC - no functional changesMike Frysinger2007-11-211-1/+2
| | | | | | | | | | | | | | | | | | Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: convert READY to DMA_READY as it causes build errors in ↵Mike Frysinger2007-11-212-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | common sound code otherwise Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: add defines for the on-chip L1 ROM of BF54xMike Frysinger2007-11-211-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | Should not need separate cplb entry though as we cover L1 with a 4 meg page Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: cplb and map header file cleanupMike Frysinger2007-11-217-36/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - remove duplicated defines for the BF561 - generalize L2 support (so that it works for BF54x) and mark it executable - add support for reading/executing the Boot ROM sections (since it has data/functions we may need at runtime) - and fixup names for each map Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: cleanup the cplb declaresMike Frysinger2007-11-212-38/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | - no need to declare their sizes in the common header - no need to tack on the section attribute as only the definition matters, not references Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: fix broken on BF52x, remove silly checks on processors for ↵Mike Frysinger2007-11-215-10/+0
| | | | | | | | | | | | | | | | | | | | | | | | L1_SCRATCH defines Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: add support for working around anomaly 05000312Mike Frysinger2007-11-211-24/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Anomaly 05000312 - Errors When SSYNC, CSYNC, or Loads to LT, LB and LC Registers Are Interrupted: DESCRIPTION: When instruction cache is enabled, erroneous behavior may occur when any of the following instructions are interrupted: . CSYNC • SSYNC • LCx = • LTx = (only when LCx is non-zero) • LBx = (only when LCx is non-zero) When this problem occurs, a variety of incorrect things could happen, including an illegal instruction exception. Additional errors could show up as an exception, a hardware error, or an instruction that is valid but different than the one that was expected. WORKAROUND: Place a cli before all SSYNC, CSYNC, "LCx =", "LTx =", and "LBx =" instructions to disable interrupts, and place an sti after each of these instructions to re-enable interrupts. When these instructions are executed in code that is already non-interruptible, the problem will not occur. Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: cleanup BF54x header file and add BF547 definitionMike Frysinger2007-11-211-18/+16
| | | | | | | | | | | | | | | | | | Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: fix building for BF542 processors which only have 1 TWIMike Frysinger2007-11-211-0/+4
| | | | | | | | | | | | | | | | | | Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: rename _return_from_exception to _bfin_return_from_exception ↵Mike Frysinger2007-11-213-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | and export it Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: move EXPORT_SYMBOL() to C files where the symbol is actually ↵Mike Frysinger2007-11-216-7/+42
| | | | | | | | | | | | | | | | | | | | | | | | defined Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: fix bug NOR Flash MTD mount failSonic Zhang2007-11-212-0/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Config EBIU flash mode properly. EBIU_MODE EBIU_FCTL EBIU_MBSCTL register should be configurd to Flash mode. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: export symbol get_dma_curr_desc_ptr for driver usageCliff Cai2007-11-211-0/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: cleanup kernel exception message, don't insult the customer.Robin Getz2007-11-181-2/+2
| | | | | | | | | | | | | | | | | | Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: fix bug kernel not to boot up with mtd filesystemsBernd Schmidt2007-11-183-33/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revert this patch: move the init sections to the end of memory, so that after they are free, run time memory is all continugous - this should help decrease memory fragementation. When doing this, we also pack some of the other sections a little closer together, to make sure we don't waste memory. To make this happen, we need to rename the .data.init_task section to .init_task.data, so it doesn't get picked up by the linker script glob. Since it causes the kernel not to boot up with mtd filesystems. Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: More explicitly describe what the instructions do in inline ↵Jie Zhang2007-11-181-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | assembly. Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: add AXIS AX88180 Gigabit Ethernet Hardware and Driver to ↵Michael Hennerich2007-11-172-0/+53
| | | | | | | | | | | | | | | | | | | | | | | | board files Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: print out modules that are loaded if we get a kernel oopsRobin Getz2007-11-181-0/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: Add assembly function insl_16Michael Hennerich2007-11-173-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | /* * CPUs often take a performance hit when accessing unaligned memory * locations. The actual performance hit varies, it can be small if the * hardware handles it or large if we have to take an exception and fix * it * in software. * * Since an ethernet header is 14 bytes network drivers often end up * with * the IP header at an unaligned offset. The IP header can be aligned by * shifting the start of the packet by 2 bytes. Drivers should do this * with: * * skb_reserve(NET_IP_ALIGN); * * The downside to this alignment of the IP header is that the DMA is * now * unaligned. On some architectures the cost of an unaligned DMA is high * and this cost outweighs the gains made by aligning the IP header. * * Since this trade off varies between architectures, we allow * NET_IP_ALIGN * to be overridden. */ This new function insl_16 allows to read form 32-bit IO and writes to 16-bit aligned memory. This is useful in above described scenario - In particular with the AXIS AX88180 Gigabit Ethernet MAC. Once the device is in 32-bit mode, reads from the RX FIFO always decrements 4bytes. While on the other side the destination address in SDRAM is always 16-bit aligned. If we use skb_reserve(0) the receive buffer is 32-bit aligned but later we hit a unaligned exception in the IP code. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: use do_div() for the 64bit division as pointed out by BerndMike Frysinger2007-11-233-378/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If you need a 64 bit divide in the kernel, use asm/div64.h. Revert the addition of udivdi3. Cc: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: fix spurious newline in headerMike Frysinger2007-11-171-1/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: unexport get_wchanAdrian Bunk2007-11-171-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | The only user of get_wchan I was able to find is the proc fs - and proc can't be built modular. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: remove dump_thread()Adrian Bunk2007-11-183-47/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The only user is the a.out support. It was therefore removed prior to the blackfin merge from all architectures not supporting a.out. Currently, Blackfin doesn't suppport a.out. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: Typo: "CONFIG_RTC_BFIN_MODULE" -> "CONFIG_RTC_DRV_BFIN_MODULE"Robert P. J. Day2007-11-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | i'm *reasonably* confident that this is a typo that should be fixed. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: Dont use cs_change_per_word, since the AD7877 driver doesnt ↵Michael Hennerich2007-11-155-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | require it anymore; fix bus numbers, fix typos Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: relocate linux/usb_isp1362.h to linux/usb/isp1362.h like in ↵Mike Frysinger2007-11-1510-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | newer linux trees Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: the usb_sl811.h header has been moved to usb/sl811.h so lets ↵Mike Frysinger2007-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | use that version now Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | Blackfin arch: do not include linux/autoconf.hMike Frysinger2007-11-152-2/+0
| | | | | | | | | | | | | | | | | | Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
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