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2010-07-02sh: Drop dependence for 29bit mode of trigger_address_error()Nobuhiro Iwamatsu1-7/+6
When CONFIG_PMB enable, ITLB is not cleared by reset of watchdog timer. This should use trigger_address_error(). Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-07-02sh: Provide a global TLB flush for U/I-TLB clear.Paul Mundt4-0/+27
This provides a sledgehammer approach for clearing the TLBs, only to be used in cases where we know we will never want to use the mappings again and have no interest in preserving state. This also destroys wired entries. The primary use for this is when we are either entering or exiting the kernel completely, in the latter case as a precursor for CPU reset by MMU. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-07-02Merge branch 'master' of ↵Paul Mundt3-3/+3
master.kernel.org:/pub/scm/linux/kernel/git/mfleming/sh-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/mfleming/sh-2.6: sh: Fix typos in PCI initialization message
2010-07-02Merge branches 'sh/highmem' and 'sh/stable-updates'Paul Mundt154-665/+723
2010-07-01Merge branch 'release' of ↵Linus Torvalds1-1/+1
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] Fix spinaphore down_spin()
2010-06-30Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds8-12/+20
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: OMAP: hwmod: Fix the missing braces OMAP4: clock: Fix multi-omap boot with reset un-used clocks OMAP3: PM: fix IO daisy chain enable to use PM_WKEN reg omap: GPIO: fix auto-disable of debounce clock omap: DMTIMER: Ack pending interrupt always when stopping a timer omap: Stalker board: switch over to gpio_set_debounce omap: fix build failure due to missing include dma-mapping.h omap iommu: Fix Memory leak
2010-06-30[IA64] Fix spinaphore down_spin()Tony Luck1-1/+1
Typo in down_spin() meant it only read the low 32 bits of the "serve" value, instead of the full 64 bits. This results in the system hanging when the values in ticket/serve get larger than 32-bits. A big enough system running the right test can hit this in a just a few hours. Broken since 883a3acf5b0d4782ac35981227a0d094e8b44850 [IA64] Re-implement spinaphores using ticket lock concepts Reported via IRC by Bjorn Helgaas Signed-off-by: Tony Luck <tony.luck@intel.com>
2010-06-29um: os-linux/mem.c needs sys/stat.hLiu Aleaxander1-0/+1
The os-linux/mem.c file calls fchmod function, which is declared in sys/stat.h header file, so include it. Fixes build breakage under FC13. Signed-off-by: Liu Aleaxander <Aleaxander@gmail.com> Acked-by: Boaz Harrosh <bharrosh@panasas.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-28Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing: Fix undeclared ENOSYS in include/linux/tracepoint.h perf record: prevent kill(0, SIGTERM); perf session: Remove threads from tree on PERF_RECORD_EXIT perf/tracing: Fix regression of perf losing kprobe events perf_events: Fix Intel Westmere event constraints perf record: Don't call newt functions when not initialized
2010-06-28Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds14-24/+45
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, Calgary: Increase max PHB number x86: Fix rebooting on Dell Precision WorkStation T7400 x86: Fix vsyscall on gcc 4.5 with -Os x86, pat: Proper init of memtype subtree_max_end um, hweight: Fix UML boot crash due to x86 optimized hweight x86, setup: Set ax register in boot vga query percpu, x86: Avoid warnings of unused variables in per cpu x86, irq: Rename gsi_end gsi_top, and fix off by one errors x86: use __ASSEMBLY__ rather than __ASSEMBLER__
2010-06-28Merge branch 'for_2.6.35rc' of git://git.pwsan.com/linux-2.6 into ↵Tony Lindgren43-61/+368
omap-fixes-for-linus
2010-06-28arm: update gfp/slab.h includesTejun Heo1-0/+1
Implicit slab.h inclusion via percpu.h is about to go away. Make sure gfp.h or slab.h is included as necessary. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2010-06-27Merge branch 'sh/for-linus' of ↵Linus Torvalds3-4/+1
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: clocksource: sh_cmt: Fix up bogus shift value. arch/sh/mm: Eliminate a double lock sh: Fix up IORESOURCE_PCI_FIXED usage in pcibios_fixup_device_resources(). sh: remove duplicated #include
2010-06-27Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds3-3/+41
* 'merge' of git://git.secretlab.ca/git/linux-2.6: powerpc/5200: fix lite5200 ethernet phy address powerpc/5200: Fix build error in sound code. powerpc/5200: fix oops during going to standby powerpc/5200: add lite5200 onboard I2C eeprom and flash maintainers: Add git trees for SPI and device tree of: Drop properties with "/" in their name
2010-06-27Merge branch 'for-linus' of ↵Linus Torvalds7-52/+157
git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6: alpha: Fix de2104x driver failing to readout MAC address correctly alpha: Detect Super IO chip, no IDE on Avanti, enable EPP19 alpha: fix pci_mmap_resource API breakage alpha: fix __arch_hweight32 typo
2010-06-27Merge branch 'merge' of ↵Linus Torvalds75-514/+93
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Fix mpic_resume on early G5 macs powerpc: rtas_flash needs to use rtas_data_buf powerpc: Unconditionally enabled irq stacks powerpc/kexec: Wait for online/possible CPUs only. powerpc: Disable CONFIG_SYSFS_DEPRECATED powerpc/boot: Remove addRamdisk.c since it is now unused powerpc: Move kdump default base address to 64MB on 64bit powerpc: Remove dead CONFIG_HIGHPTE powerpc/fsl-booke: Move loadcam_entry back to asm code to fix SMP ftrace powerpc/fsl-booke: Fix InstructionTLBError execute permission check
2010-06-25x86, Calgary: Increase max PHB numberDarrick J. Wong1-5/+10
Newer systems (x3950M2) can have 48 PHBs per chassis and 8 chassis, so bump the limits up and provide an explanation of the requirements for each class. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Acked-by: Muli Ben-Yehuda <muli@il.ibm.com> Cc: Corinna Schultz <cschultz@linux.vnet.ibm.com> Cc: <stable@kernel.org> LKML-Reference: <20100624212647.GI15515@tux1.beaverton.ibm.com> [ v2: Fixed build bug, added back PHBS_PER_CALGARY == 4 ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-06-23OMAP: hwmod: Fix the missing bracesBenoit Cousson1-3/+6
As reported by Sergei, a couple of braces were missing after the WARN removal patch. [07/22] OMAP: hwmod: Replace WARN by pr_warning if clock lookup failed https://patchwork.kernel.org/patch/100756/ Signed-off-by: Benoit Cousson <b-cousson@ti.com> [paul@pwsan.com: fixed patch description per Anand's E-mail] Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Sergei Shtylyov <sshtylyov@mvista.com> Cc: Anand Gadiyar <gadiyar@ti.com>
2010-06-23sh: Fix typos in PCI initialization messageMatt Fleming3-3/+3
This typo seems to have been copy and pasted in the PCI initialization code. Replace 'intialization' with 'initialization'. Signed-off-by: Matt Fleming <matt@console-pimps.org>
2010-06-21sh: Fix up PUD trampling in ranged page table init for X2TLB.Paul Mundt1-14/+38
page_table_range_init() presently allocates a PUD page for the 3-level page table case on X2 TLB configurations on each successive call. This results in the previous PUD page being trampled when PMDs with an overlapping PUD are initialized. This case was triggered by putting persistent kmaps immediately below the fixmap range for highmem. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-06-21sh: fix up an off-by-1 in the number of early ioremap fixmaps.Paul Mundt1-2/+2
There was an off-by-1 in the begin/end of the ioremap fixmaps, leaving us with a spurious entry. In practice this wasn't a problem since we aligned on a PMD boundary anyways, but this makes it consistent with the intention and the other fixmaps. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-06-21sh: SH-2007 board support.Hitoshi Mitake6-0/+1620
This patch series adds support for ITO Co., Ltd.'s SH-2007 reference platform (A PC-104 based SH7780 platform). This is a direct port of the out-of-tree board support from the vendor's kernel, originally located at: http://ms-n.org/sh-linux/kernel/ More information on the board and the vendor can be obtained from the vendor's site at: http://www.itonet.co.jp/ Presently supported peripherals are CF and ethernet, with support for the on-board IDE still pending further testing. Reviewed-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Reviewed-by: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-06-21Merge branch 'sh/stable-updates'Paul Mundt1-1/+1
2010-06-21arch/sh/mm: Eliminate a double lockJulia Lawall1-1/+1
The function begins and ends with a read_lock. The latter is changed to a read_unlock. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @locked@ expression E1; position p; @@ read_lock(E1@p,...); @r exists@ expression x <= locked.E1; expression locked.E1; expression E2; identifier lock; position locked.p,p1,p2; @@ *lock@p1 (E1@p,...); ... when != E1 when != \(x = E2\|&x\) *lock@p2 (E1,...); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-06-20x86: Fix rebooting on Dell Precision WorkStation T7400Thomas Backlund1-0/+8
Dell Precision WorkStation T7400 freezes on reboot unless reboot=b is used. Reference: https://qa.mandriva.com/show_bug.cgi?id=58017 Signed-off-by: Thomas Backlund <tmb@mandriva.org> LKML-Reference: <4C1CC6E9.6000701@mandriva.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-06-18x86: Fix vsyscall on gcc 4.5 with -OsAndi Kleen1-1/+1
This fixes the -Os breaks with gcc 4.5 bug. rdtsc_barrier needs to be force inlined, otherwise user space will jump into kernel space and kill init. This also addresses http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44129 I believe. Signed-off-by: Andi Kleen <ak@linux.intel.com> LKML-Reference: <20100618210859.GA10913@basil.fritz.box> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: <stable@kernel.org>
2010-06-16OMAP4: clock: Fix multi-omap boot with reset un-used clocksSantosh Shilimkar1-0/+2
This patch uses "ENABLE_ON_INIT" flag on the emif clock nodes to avoid the emif clk getting cut as part of reset un-used clock routine which prevents boot. Since "omap4xxx_clk_init()" calls "clk_enable_init_clocks()" which increases the usecount on all ENABLE_ON_INIT clocks, it prevents "omap2_clk_disable_unused()" from disabling the clock. The real fix is to have driver for EMIF and do clock get/enable as part of it. The EMIF driver is planned to be done HWMOD way so till that available to keep omap3_defconfig booting on OMAP4430, this patch is necessary. (Will updated the auto-gen script for 44xx accordingly) The fix was suggested by Paul Walmsley Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Nishanth Menon <nm@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-06-15powerpc/5200: fix lite5200 ethernet phy addressDmitry Baryshkov1-2/+2
According to my schematics, on Lite5200 board ethernet phy uses address 0 (all ADDR lines are pulled down). With this change I can talk to onboard phy (LXT971) and correctly use autonegotiation. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-15powerpc/5200: fix oops during going to standbyDmitry Baryshkov1-1/+10
When going to standby mode mpc code maps the whole soc5200 node to access warious MBAR registers. However as of_iomap uses 'reg' property of device node, only small part of MBAR is getting mapped. Thus pm code gets oops when trying to access high parts of MBAR. As a way to overcome this, make mpc52xx_pm_prepare() explicitly map whole MBAR (0xc0000). Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-15alpha: Detect Super IO chip, no IDE on Avanti, enable EPP19Morten H. Larsen5-49/+155
This patch probes for the Super IO chip and reserves the IO range when found. It avoids enabling the IDE interface on the Avanti family, since none has IDE. It enables the Enhanced Parallel Port v1.9 feature. Signed-off-by: Morten H. Larsen <m-larsen@post6.tele.dk> Signed-off-by: Matt Turner <mattst88@gmail.com>
2010-06-15alpha: fix pci_mmap_resource API breakageMatt Turner1-2/+1
Caused by 2c3c8bea608866d8bd9dcf92657d57fdcac011c5 which was clearly not even compile tested. Signed-off-by: Matt Turner <mattst88@gmail.com>
2010-06-15alpha: fix __arch_hweight32 typoMatt Turner1-1/+1
Typo in 1527bc8b928dd1399c3d3467dd47d9ede210978a renamed hweight32 to __arch_weight32. Signed-off-by: Matt Turner <mattst88@gmail.com>
2010-06-15powerpc/5200: add lite5200 onboard I2C eeprom and flashDmitry Baryshkov2-0/+29
Add dts descriptions for onboard 256 byte I2C eeprom (pcf8582C-2) and 16MB NOR flash (am29lv652d). Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> [grant.likely@secretlab.ca: added lite5200b eeprom and declared lite5200 gpios] Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-15powerpc: Fix mpic_resume on early G5 macsAlastair Bridgewater1-1/+1
mpic_resume() on G5 macs blindly dereferences mpic->fixups, but it may legitimately be NULL (as on PowerMac7,2). Add an explicit check. This fixes suspend-to-disk with one processor (maxcpus=1) for me. Signed-off-by: Alastair Bridgewater <alastair.bridgewater@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-06-15powerpc: rtas_flash needs to use rtas_data_bufMilton Miller1-18/+21
When trying to flash a machine via the update_flash command, Anton received the following error: Restarting system. FLASH: kernel bug...flash list header addr above 4GB The code in question has a comment that the flash list should be in the kernel data and therefore under 4GB: /* NOTE: the "first" block list is a global var with no data * blocks in the kernel data segment. We do this because * we want to ensure this block_list addr is under 4GB. */ Unfortunately the Kconfig option is marked tristate which means the variable may not be in the kernel data and could be above 4GB. Instead of relying on the data segment being below 4GB, use the static data buffer allocated by the kernel for use by rtas. Since we don't use the header struct directly anymore, convert it to a simple pointer. Reported-By: Anton Blanchard <anton@samba.org> Signed-Off-By: Milton Miller <miltonm@bga.com Tested-By: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-06-15powerpc: Unconditionally enabled irq stacksChristoph Hellwig8-42/+0
Irq stacks provide an essential protection from stack overflows through external interrupts, at the cost of two additionals stacks per CPU. Enable them unconditionally to simplify the kernel build and prevent people from accidentally disabling them. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-06-15powerpc/kexec: Wait for online/possible CPUs only.Matt Evans1-17/+1
kexec_perpare_cpus_wait() iterates i through NR_CPUS to check paca[i].kexec_state of each to make sure they have quiesced. However now we have dynamic PACA allocation, paca[NR_CPUS] is not necessarily valid and we overrun the array; spurious "cpu is not possible, ignoring" errors result. This patch iterates for_each_online_cpu so stays within the bounds of paca[] -- and every CPU is now 'possible'. Signed-off-by: Matt Evans <matt@ozlabs.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-06-15powerpc: Disable CONFIG_SYSFS_DEPRECATEDGrant Likely60-119/+59
Acked-by: Grant Likely <grant.likely@secretlab.ca> On 5 May 2010 21:33, "Anton Blanchard" <anton@samba.org> wrote: CONFIG_SYSFS_DEPRECATED can cause issues with newer distros and should not be required for any distro in the last 3 or 4 years, so disable it. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-06-15powerpc/boot: Remove addRamdisk.c since it is now unusedPaul Mackerras2-312/+1
It was used in the dim distant past for adding initrds to images for legacy iSeries, but it's not even used for that now that we have initramfs. So remove it. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-06-15powerpc: Move kdump default base address to 64MB on 64bitAnton Blanchard1-1/+10
We are seeing boot fails on some System p machines when using the kdump crashkernel= boot option. The default kdump base address is 32MB, so if we reserve 256MB for kdump then we reserve all of the RMO except the first 32MB. We really want kdump to reserve some memory in the RMO and most of it elsewhere but that will require more significant changes. For now we can shift the default base address to 64MB when CONFIG_PPC64 and CONFIG_RELOCATABLE are set. This isn't quite correct since what we really care about is the kdump kernel is relocatable, but we already make the assumption that base kernel and kdump kernel have the same CONFIG_RELOCATABLE setting, eg: #ifndef CONFIG_RELOCATABLE if (crashk_res.start != KDUMP_KERNELBASE) printk("Crash kernel location must be 0x%x\n", KDUMP_KERNELBASE); ... RTAS is instantiated towards the top of our RMO, so if we were to go any higher we risk not having enough RMO memory for the kdump kernel on boxes with a 128MB RMO. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-06-15powerpc: Remove dead CONFIG_HIGHPTEChristoph Egger1-4/+0
CONFIG_HIGHPTE doesn't exist in Kconfig, therefore removing all references for it from the source code. Signed-off-by: Christoph Egger <siccegge@cs.fau.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-06-14sh: update the FDPIC relocations.Paul Mundt1-19/+8
Now that the FDPIC relocations have been given fixed numbers upstream, switch to using those. The previous values only applied to experimental toolchains that never made it in to the wild, so the impact remains minimal. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-06-14sh: kprobes SMP support.Paul Mundt1-50/+50
Presently kprobes support relies on several saved opcode variables for saving and restoring state, without any specific locking. This is inherently racy on SMP, and given that we already use per-CPU variables for everything else, convert these over too. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-06-14sh: split out ptrace header for _32/_64 variants.Paul Mundt4-98/+117
asm/ptrace.h is getting a bit messy, with the _32/_64-specific changes being fairly insular. This splits out the header accordingly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-06-14sh: Add kprobe-based event tracer.Paul Mundt9-11/+227
This follows the x86/ppc changes for kprobe-based event tracing on sh. While kprobes is only supported on 32-bit sh, we provide the API for HAVE_REGS_AND_STACK_ACCESS_API for both 32 and 64-bit. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-06-12Merge branch 'bugzilla-13931-sleep-nvs' into releaseLen Brown1-1/+1
Conflicts: drivers/acpi/sleep.c Signed-off-by: Len Brown <len.brown@intel.com>
2010-06-11Merge branch 'pm-fixes' of ↵Linus Torvalds3-0/+8
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 * 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PM / x86: Save/restore MISC_ENABLE register
2010-06-11Merge branch 'for-linus' of ↵Linus Torvalds4-0/+5
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: clear bridge resource range if BIOS assigned bad one PCI: hotplug/cpqphp, fix NULL dereference Revert "PCI: create function symlinks in /sys/bus/pci/slots/N/" PCI: change resource collision messages from KERN_ERR to KERN_INFO
2010-06-11x86, pat: Proper init of memtype subtree_max_endVenkatesh Pallipadi2-1/+2
subtree_max_end that was recently added to struct memtype was not getting properly initialized resulting in WARNING: kmemcheck: Caught 64-bit read from uninitialized memory in memtype_rb_augment_cb() reported here https://bugzilla.kernel.org/show_bug.cgi?id=16092 This change fixes the problem. Reported-by: Christian Casteyde <casteyde.christian@free.fr> Tested-by: Christian Casteyde <casteyde.christian@free.fr> Signed-off-by: Venkatesh Pallipadi <venki@google.com> LKML-Reference: <1276217101-11515-1-git-send-email-venki@google.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com>
2010-06-11PCI: clear bridge resource range if BIOS assigned bad oneYinghai Lu4-0/+5
Yannick found that video does not work with 2.6.34. The cause of this bug was that the BIOS had assigned the wrong range to the PCI bridge above the video device. Before 2.6.34 the kernel would have shrunk the size of the bridge window, but since d65245c PCI: don't shrink bridge resources the kernel will avoid shrinking BIOS ranges. So zero out the old range if we fail to claim it at boot time; this will cause us to allocate a new range at startup, restoring the 2.6.34 behavior. Fixes regression https://bugzilla.kernel.org/show_bug.cgi?id=16009. Reported-by: Yannick <yannick.roehlly@free.fr> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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