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2008-11-18Blackfin arch: fix a broken define in dma-mappingMike Frysinger1-1/+5
dma_mapping_error is an actual function, so fix broken define with a real inline stub Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18Blackfin arch: fix bug - Turn on DEBUG_DOUBLEFAULT, booting SMP kernel crashGraf Yang1-1/+1
Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-28Blackfin arch: fix bug - shared lib function in L2 failed be calledJie Zhang2-5/+10
Allow user space to access L2 SRAM. Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-28Blackfin arch: fix incorrect limit check for bf54x check_gpioMike Frysinger1-1/+1
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-28Blackfin arch: fix bug - Cpufreq assumes clocks in kHz and not Hz.Michael Hennerich1-7/+7
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-28Blackfin arch: dont warn when running a kernel on the oldest supported siliconMike Frysinger1-1/+1
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-28Blackfin arch: fix bug - kernel build with write back policy fails to be ↵Mike Frysinger1-1/+1
booted up Make sure IFLUSH is not the last instruction in the hardware loop to avoid infinite core stall. The dcache/icache function that only gets used in writeback mode was putting IFLUSH as the last instruction in the hardware loop ... we know from design that this may often lead to inifite core stalling, so switch the FLUSH/IFLUSH order. Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18Blackfin arch: fix bug - dmacopy test case fail on all platformMike Frysinger1-1/+5
The cache code I added flushes 1 line too little if the start address is not aligned to the cache size. Cache align the start address so that when we straddle cache aligns, we get the right count. Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-28Blackfin arch: Fix typo when adding CONFIG_DEBUG_VERBOSERobin Getz1-2/+2
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-27Blackfin arch: don't copy bss when copying L1Mike Frysinger2-6/+6
when copying L1 regions, go to the start of bss rather than end since we have code to zero it out already Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-27Blackfin arch: fix bug - Fail to boot jffs2 kernel for BF561 with SMP patchGraf Yang1-4/+5
only if the cplb block overlapped with kernel area, this cplb need be locked Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-27Blackfin arch: handle case of d_path() returning error in decode_address()Tim Pepper1-2/+5
d_path() can return an error. Most of its callers do something or other to make up something sane in that case. Do similar for blackfin's decode_address() call to d_path(). Signed-off-by: Tim Pepper <lnxninja@linux.vnet.ibm.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2-8/+7
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: rtc: rtc-sun4v fixes, revised sparc: Fix tty compile warnings. sparc: struct device - replace bus_id with dev_name(), dev_set_name()
2008-11-15Merge branch 'sh/for-2.6.28' of ↵Linus Torvalds11-13/+83
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh/for-2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: serial: sh-sci: Reorder the SCxTDR write after the TDxE clear. sh: __copy_user function can corrupt the stack in case of exception sh: Fixed the TMU0 reload value on resume sh: Don't factor in PAGE_OFFSET for valid_phys_addr_range() check. sh: early printk port type fix i2c: fix i2c-sh_mobile rx underrun sh: Provide a sane valid_phys_addr_range() to prevent TLB reset with PMB. usb: r8a66597-hcd: fix wrong data access in SuperH on-chip USB fix sci type for SH7723 serial: sh-sci: fix cannot work SH7723 SCIFA sh: Handle fixmap TLB eviction more coherently.
2008-11-15Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds6-18/+33
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: [S390] fix s390x_newuname [S390] dasd: log sense for fatal errors [S390] cpu topology: fix locking [S390] cio: Fix refcount after moving devices. [S390] ftrace: fix kernel stack backchain walking [S390] ftrace: disable tracing on idle psw [S390] lockdep: fix compile bug [S390] kvm_s390: Fix oops in virtio device detection with "mem=" [S390] sclp: emit error message if assign storage fails [S390] Fix range for add_active_range() in setup_memory()
2008-11-15Revert "x86: blacklist DMAR on Intel G31/G33 chipsets"David Woodhouse2-19/+0
This reverts commit e51af6630848406fc97adbd71443818cdcda297b, which was wrongly hoovered up and submitted about a month after a better fix had already been merged. The better fix is commit cbda1ba898647aeb4ee770b803c922f595e97731 ("PCI/iommu: blacklist DMAR on Intel G31/G33 chipsets"), where we do this blacklisting based on the DMI identification for the offending motherboard, since sometimes this chipset (or at least a chipset with the same PCI ID) apparently _does_ actually have an IOMMU. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-15m68k: Fix off-by-one in m68k_setup_user_interrupt()Geert Uytterhoeven1-1/+1
commit 69961c375288bdab7604e0bb1c8d22999bb8a347 ("[PATCH] m68k/Atari: Interrupt updates") added a BUG_ON() with an incorrect upper bound comparison, which causes an early crash on VME boards, where IRQ_USER is 8, cnt is 192 and NR_IRQS is 200. Reported-by: Stephen N Chivers <schivers@csc.com.au> Tested-by: Kars de Jong <jongk@linux-m68k.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-14[S390] fix s390x_newunameMartin Schwidefsky1-1/+1
The uname system call for 64 bit compares current->personality without masking the upper 16 bits. If e.g. READ_IMPLIES_EXEC is set the result of a uname system call will always be s390x even if the process uses the s390 personality. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-11-14[S390] cpu topology: fix lockingHeiko Carstens1-4/+7
cpu_coregroup_map used to grab a mutex on s390 since it was only called from process context. Since c7c22e4d5c1fdebfac4dba76de7d0338c2b0d832 "block: add support for IO CPU affinity" this is not true anymore. It now also gets called from softirq context. To prevent possible deadlocks change this in architecture code and use a spinlock instead of a mutex. Cc: stable@kernel.org Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-11-14[S390] ftrace: fix kernel stack backchain walkingHeiko Carstens2-11/+18
With CONFIG_IRQSOFF_TRACER the trace_hardirqs_off() function includes a call to __builtin_return_address(1). But we calltrace_hardirqs_off() from early entry code. There we have just a single stack frame. So this results in a kernel stack backchain walk that would walk beyond the kernel stack. Following the NULL terminated backchain this results in a lowcore read access. To fix this we simply call trace_hardirqs_off_caller() and pass the current instruction pointer. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-11-14[S390] ftrace: disable tracing on idle pswHeiko Carstens1-0/+3
Disable tracing on idle psw. Otherwise it would give us huge preempt off times for idle. Which is rather pointless. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-11-14[S390] lockdep: fix compile bugHeiko Carstens1-0/+2
arch/s390/kernel/built-in.o: In function `cleanup_io_leave_insn': mem_detect.c:(.text+0x10592): undefined reference to `lockdep_sys_exit' Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-11-14[S390] Fix range for add_active_range() in setup_memory()Gerald Schaefer1-2/+2
add_active_range() expects start_pfn + size as end_pfn value, i.e. not the pfn of the last page frame but the one behind that. We used the pfn of the last page frame so far, which can lead to a BUG_ON in move_freepages(), when the kernelcore parameter is specified (page_zone(start_page) != page_zone(end_page)). Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-11-13Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds14-98/+43
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] cdb89712: avoid namespace clashes with SRAM_ and BOOTROM_ constants [ARM] cdb89712,clps7500,h720x: avoid namespace clash for FLASH_* constants [ARM] integrator,realview,versatile: remove FLASH_* and EPROM_* constants [ARM] dma-mapping: fix compiler warning [ARM] iop: iop3xx needs registers mapped uncached+unbuffered [ARM] versatile: correct MMC clock rate [ARM] realview: correct MMC clock rate [ARM] 5329/1: Feroceon: fix feroceon_l2_inv_range
2008-11-13fix cpumask build breakage on pariscHelge Deller1-2/+0
Commit 2d3854a37e8b767a51aba38ed6d22817b0631e33 ("cpumask: introduce new API, without changing anything") introduced a build breakage on parisc. This trivial patch fixes it. Signed-off-by: Helge Deller <deller@gmx.de> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Kyle Mc Martin <kyle@hera.kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-13[ARM] cdb89712: avoid namespace clashes with SRAM_ and BOOTROM_ constantsRussell King1-18/+0
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-13[ARM] cdb89712,clps7500,h720x: avoid namespace clash for FLASH_* constantsRussell King4-13/+9
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-13[ARM] integrator,realview,versatile: remove FLASH_* and EPROM_* constantsRussell King3-53/+3
FLASH_* and EPROM_* constants are unused, and clash with drivers: drivers/atm/ambassador.h:257:1: warning: "FLASH_BASE" redefined drivers/atm/ambassador.h:258:1: warning: "FLASH_SIZE" redefined drivers/atm/iphase.h:332:1: warning: "EPROM_SIZE" redefined so remove them. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-13[ARM] dma-mapping: fix compiler warningRussell King1-2/+11
arch/arm/mm/dma-mapping.c: In function `dma_sync_sg_for_cpu': arch/arm/mm/dma-mapping.c:588: warning: statement with no effect Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-13serial: sh-sci: Reorder the SCxTDR write after the TDxE clear.Paul Mundt1-1/+1
Under qemu there is a race between the TDxE read-and-clear and the SCxTDR write. While on hardware it can be gauranteed that the read-and-clear will happen prior to the character being written out, no such assumption can be made under emulation. As this path happens with IRQs off and the hardware itself doesn't care about the ordering, move the SCxTDR write until after the read-and-clear. Signed-off-by: Vladimir Prus <vladimir@codesourcery.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13sh: __copy_user function can corrupt the stack in case of exceptionStuart MENEFY1-3/+8
The __copy_user function can corrupt the stack in the case of a non-trivial length of data, and either of the first two move instructions cause an exception. This is because the fixup for these two instructions is mapped to the no_pop case, but these instructions execute after the stack is pushed. This change creates an explicit NO_POP exception mapping macro, and uses it for the two instructions executed in the trivial case where no stack pushes occur. More information at ST Linux bugzilla: https://bugzilla.stlinux.com/show_bug.cgi?id=4824 Signed-off-by: Dylan Reid <dylan_reid@bose.com> Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13sh: Fixed the TMU0 reload value on resumeFrancesco VIRLINZI1-1/+1
This patch fixes the TMU0 interrupt frequency on suspend/resume. During the resume the kernel reprograms the TMU0.ClockEvent mode but if the mode is periodic than the TMU0.TCOR is updated with a random wrong value without taking care latest valid saved value. There was no problem with No_HZ system where TMU0.TCOR isn't used. Signed-off-by: Francesco M. Virlinzi <francesco.virlinzi@st.com> Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13sparc: Fix tty compile warnings.Robert Reif1-6/+5
This patch fixes tty compile warnings as sugested by Alan Cox: CC drivers/char/n_tty.o drivers/char/n_tty.c: In function ‘normal_poll’: drivers/char/n_tty.c:1555: warning: array subscript is above array bounds drivers/char/n_tty.c:1564: warning: array subscript is above array bounds drivers/char/n_tty.c: In function ‘read_chan’: drivers/char/n_tty.c:1269: warning: array subscript is above array bounds CC drivers/char/tty_ioctl.o drivers/char/tty_ioctl.c: In function ‘set_termios’: drivers/char/tty_ioctl.c:533: warning: array subscript is above array bounds drivers/char/tty_ioctl.c:537: warning: array subscript is above array bounds drivers/char/tty_ioctl.c: In function ‘tty_mode_ioctl’: drivers/char/tty_ioctl.c:662: warning: array subscript is above array bounds drivers/char/tty_ioctl.c:892: warning: array subscript is above array bounds drivers/char/tty_ioctl.c:896: warning: array subscript is above array bounds drivers/char/tty_ioctl.c:577: warning: array subscript is above array bounds drivers/char/tty_ioctl.c:928: warning: array subscript is above array bounds drivers/char/tty_ioctl.c:934: warning: array subscript is above array bounds Signed-off-by: Robert Reif <reif@earthlink.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-13sparc: struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers1-2/+2
Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-13sh: Don't factor in PAGE_OFFSET for valid_phys_addr_range() check.Paul Mundt1-1/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13sh: early printk port type fixMagnus Damm1-0/+1
Add PORT_SCIF to unbreak the early printk code. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-12Merge branch 'fixes' of ↵Linus Torvalds3-3/+11
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: dmaengine: struct device - replace bus_id with dev_name(), dev_set_name() iop-adma: use iop_paranoia() for debug BUG_ONs iop-adma: add a dummy read to flush next descriptor update
2008-11-12MN10300: Don't do misalignment handling for userspaceDavid Howells1-29/+23
Don't do misalignment handling for userspace misalignment faults: just generate an appropriate SIGBUS instead. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Don't handle misaligned loading and storing of SPDavid Howells1-2/+0
Don't handle the misaligned loading and storing of the SP register as in C code that's most certainly a compiler bug. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Handle misaligned SP-based operandsDavid Howells1-9/+24
Support misalignment handling for instructions that have kernel SP-based address operands, including fixing those that include IMM8 or IMM16 displacements. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Fix misaligned index-register addressing handlingDavid Howells1-4/+4
Fix misalignment handling for an address calculated from the sum of two registers. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Handle misaligned postinc-with-imm addressing mode correctlyDavid Howells1-51/+56
Correctly handle misalignment in MOV instructions with postinc-with-immediate addressing mode operands. In these, the immediate value is the increment to be applied the address register, not the displacement to the address. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Perform misalignment fixups of MOV_LccDavid Howells1-1/+94
Perform misalignment fixups of the MOV_Lcc instructions (move postinc memory to register and conditionally loop). Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Allow misalignment fixup in interrupt handlingDavid Howells1-3/+0
Allow misalignment fixup in interrupt handling in the MN10300 arch. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Fix register-postinc addressing misalignment handlingDavid Howells1-1/+3
Fix misalignment handling of operands with register postincrement addressing. The flag to indicate that postincrement is required should not be interpreted as an specification of a value to be added to the address. Also add BUGs to catch unimplemented parameter markings in the opcodes table. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Extract the displacement from an insn correctly in misalignment fixupDavid Howells1-13/+13
Extract the displacement from an MN10300 instruction correctly in the misalignment fixup handler. The code should extract the displacement in LSB order, not MSB order. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Add further misalignment fixupsDavid Howells1-1/+53
Add further misalignment fixup support to the MN10300 arch, notably for ABS32 and SP+disp addressing. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Add built-in testing for misalignment handlerDavid Howells2-0/+170
Add configurable built-in testing for the MN10300 misalignment handler. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Clean up the misalignment handler a littleDavid Howells1-18/+9
Clean up the MN10300 misalignment handler a little by: (1) Use ilog2() rather than doing implementing log2() locally. (2) Make format_tbl[] const and static. (3) Making the debugging prints more consistent. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12Merge branch 'kvm-updates/2.6.28' of ↵Linus Torvalds9-10/+23
git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm * 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: KVM: Fix pit memory leak if unable to allocate irq source id KVM: ia64: fix vmm_spin_{un}lock for !CONFIG_SMP KVM: VMX: Set IGMT bit in EPT entry KVM: Require the PCI subsystem x86: KVM guest: fix section mismatch warning in kvmclock.c KVM: ia64: Use guest signal mask when blocking KVM: MMU: increase per-vcpu rmap cache alloc size
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