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* powerpc: Convert mmu context allocator from idr to idaAnton Blanchard2010-02-091-5/+5
| | | | | | | | We can use the much more lightweight ida allocator since we don't need the pointer storage idr provides. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Add last sysfs file and dump of ftrace buffer to oops printoutAnton Blanchard2010-02-091-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add printout of last accessed sysfs file, added to x86 in ae87221d3ce49d9de1e43756da834fd0bf05a2ad (sysfs: crash debugging) Also add the notify_die hook that allows us to print out the ftrace buffer on oops. This is useful in conjunction with ftrace function_graph: Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=128 NUMA pSeries last sysfs file: /sys/class/net/tunl0/type Dumping ftrace buffer: ... 0) | .sysrq_handle_crash() { 0) 0.476 us | .hash_page(); 0) 0.488 us | .xmon_fault_handler(); 0) | .bad_page_fault() { 0) | .search_exception_tables() { 0) 0.590 us | .search_module_extables(); 0) 2.546 us | } 0) | .printk() { 0) | .vprintk() { 0) 0.488 us | ._raw_spin_lock(); 0) 0.572 us | .emit_log_char(); Showing the function graph of a sysrq-c crash. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Reduce differences between pseries and ppc64 defconfigsAnton Blanchard2010-02-092-59/+79
| | | | | | | | | | | | The pseries and ppc64 defconfigs have drifted apart over the years. Reduce some of the differences while still keeping the idea that the ppc64 defconfig is cross platform but enables fewer features than pseries, eg NR_CPUS is lower. Also enable a number of common adapters as modules. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pseries: Quieten cede latency printkAnton Blanchard2010-02-091-17/+5
| | | | | | | | | The cede latency stuff is relatively new and we don't need to complain about it not working on older firmware. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* arch/powerpc: Fix continuation line formatsJoe Perches2010-02-093-9/+9
| | | | | | | | String constants that are continued on subsequent lines with \ are not good. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pseries: Hypervisor call tracepoints hcall_stats touchupWill Schmidt2010-02-091-2/+2
| | | | | | | | | | | The tb_total and purr_total values reported via the hcall_stats code should be cumulative, rather than being replaced by the latest delta tb or purr value. Tested-by: Will Schmidt <will_schmidt@vnet.ibm.com> Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com> Acked-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pseries: Pass more accurate number of supported cores to firmwareBenjamin Herrenschmidt2010-02-041-1/+63
| | | | | | | | | | | | | | | | | | | Updated variant of a patch by Joel Schopp. The field containing the number of supported cores which we pass to firmware via the ibm,client-architecture call was set by a previous patch statically as high as is possible (NR_CPUS). However, that value isn't quite right for a system that supports multiple threads per core, thus permitting the firmware to assign more cores to a Linux partition than it can really cope with. This patch improves it by using the device-tree to determine the number of threads supported by the processors in order to adjust the value passed to firmware. Signed-off-by: Joel Schopp <jschopp@austin.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Add static fields to ibm,client-architecture calljschopp@austin.ibm.com2010-02-031-2/+17
| | | | | | | | | | | | | | | | This patch adds 2 fields to the ibm_architecture_vec array. The first of these fields indicates the number of cores which Linux can boot. It does not account for SMT, so it may result in cpus assigned to Linux which cannot be booted. A second patch follows that dynamically updates this for SMT. The second field just indicates that our OS is Linux, and not another OS. The system may or may not use this hint to performance tune settings for Linux. Signed-off-by: Joel Schopp <jschopp@austin.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Fix typo s/leve/level/ in TLB codeThadeu Lima de Souza Cascardo2010-02-031-1/+1
| | | | | Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Increase NR_IRQS Kconfig maximum to 32768Anton Blanchard2010-02-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | With dynamic irq descriptors the overhead of a large NR_IRQS is much lower than it used to be. With more MSI-X capable adapters and drivers exploiting multiple vectors we may as well allow the user to increase it beyond the current maximum of 512. 32768 seems large enough that we'd never have to bump it again (although I bet my prediction is horribly wrong). It boot tests OK and the vmlinux footprint increase is only around 500kB due to: struct irq_map_entry irq_map[NR_IRQS]; We format /proc/interrupts correctly with the previous changes: CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 286: 0 0 0 0 0 0 516: 0 0 0 0 0 0 16689: 1833 0 0 0 0 0 17157: 0 0 0 0 0 0 17158: 319 0 0 0 0 0 25092: 0 0 0 0 0 0 Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/85xx: Fix SMP when "cpu-release-addr" is in lowmemPeter Tyser2010-02-031-2/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Recent U-Boot commit 5ccd29c3679b3669b0bde5c501c1aa0f325a7acb caused the "cpu-release-addr" device tree property to contain the physical RAM location that secondary cores were spinning at. Previously, the "cpu-release-addr" property contained a value referencing the boot page translation address range of 0xfffffxxx, which then indirectly accessed RAM. The "cpu-release-addr" is currently ioremapped and the secondary cores kicked. However, due to the recent change in "cpu-release-addr", it sometimes points to a memory location in low memory that cannot be ioremapped. For example on a P2020-based board with 512MB of RAM the following error occurs on bootup: <...> mpic: requesting IPIs ... __ioremap(): phys addr 0x1ffff000 is RAM lr c05df9a0 Unable to handle kernel paging request for data at address 0x00000014 Faulting instruction address: 0xc05df9b0 Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=2 P2020 RDB Modules linked in: <... eventual kernel panic> Adding logic to conditionally ioremap or access memory directly resolves the issue. Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Nate Case <ncase@xes-inc.com> Reported-by: Dipen Dudhat <B09055@freescale.com> Tested-by: Dipen Dudhat <B09055@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Mark some variables in the page fault path __read_mostlyAnton Blanchard2010-02-032-8/+8
| | | | | | | | | Using perf to trace L1 dcache misses and dumping data addresses I found a few variables taking a lot of misses. Since they are almost never written, they should go into the __read_mostly section. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Replace per_cpu(, smp_processor_id()) with __get_cpu_var()Anton Blanchard2010-02-032-6/+5
| | | | | | | | The cputime code has a few places that do per_cpu(, smp_processor_id()). Replace them with __get_cpu_var(). Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Simplify param.h by including <asm-generic/param.h>Robert P. J. Day2010-02-031-22/+1
| | | | | Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Merge branch 'sh/for-2.6.33' of ↵Linus Torvalds2010-02-022-6/+6
|\ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh/for-2.6.33' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Fix access to released memory in clk_debugfs_register_one() sh: Fix access to released memory in dwarf_unwinder_cleanup() usb: r8a66597-hdc disable interrupts fix spi: spi_sh_msiof: Fixed data sampling on the correct edge
| * sh: Fix access to released memory in clk_debugfs_register_one()Marek Skuczynski2010-02-021-2/+2
| | | | | | | | | | Signed-off-by: Marek Skuczynski <mareksk7@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fix access to released memory in dwarf_unwinder_cleanup()Marek Skuczynski2010-02-021-4/+4
| | | | | | | | | | | | Signed-off-by: Marek Skuczynski <mareksk7@gmail.com> Acked-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2010-02-027-4/+31
|\ \ | |/ |/| | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: MIPS: 64-bit: Detect virtual memory size MIPS: AR7: Fix USB slave mem range typo MIPS: Alchemy: Fix dbdma ring destruction memory debugcheck.
| * MIPS: 64-bit: Detect virtual memory sizeGuenter Roeck2010-02-024-1/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux kernel 2.6.32 and later allocate address space from the top of the kernel virtual memory address space. This patch implements virtual memory size detection for 64 bit MIPS CPUs to avoid resulting crashes. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/935/ Reviewed-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: AR7: Fix USB slave mem range typoAlexander Clouter2010-02-011-1/+1
| | | | | | | | | | | | | | Signed-off-by: Alexander Clouter <alex@digriz.org.uk> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/919/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Alchemy: Fix dbdma ring destruction memory debugcheck.Manuel Lauss2010-02-012-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DBDMA descriptors need to be located at 32-byte aligned addresses; however kmalloc in conjunction with the SLAB allocator and CONFIG_DEBUG_SLUB enabled doesn't deliver any. The dbdma code works around that by allocating a larger area and realigning the start address within it. When freeing a channel however this adjustment is not taken into account which results in an oops: Kernel bug detected[#1]: [...] Call Trace: [<80186010>] cache_free_debugcheck+0x284/0x318 [<801869d8>] kfree+0xe8/0x2a0 [<8010b31c>] au1xxx_dbdma_chan_free+0x2c/0x7c [<80388dc8>] au1x_pcm_dbdma_free+0x34/0x4c [<80388fa8>] au1xpsc_pcm_close+0x28/0x38 [<80383cb8>] soc_codec_close+0x14c/0x1cc [<8036dbb4>] snd_pcm_release_substream+0x60/0xac [<8036dc40>] snd_pcm_release+0x40/0xa0 [<8018c7a8>] __fput+0x11c/0x228 [<80188f60>] filp_close+0x7c/0x98 [<80189018>] sys_close+0x9c/0xe4 [<801022a0>] stack_done+0x20/0x3c Fix this by recording the address delivered by kmalloc() and using it as parameter to kfree(). This fix is only necessary with the SLAB allocator and CONFIG_DEBUG_SLAB enabled; non-debug SLAB, SLUB do return nicely aligned addresses, debug-enabled SLUB currently panics early in the boot process. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Cc: Manuel Lauss <manuel.lauss@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/878/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds2010-02-011-57/+165
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: perf, hw_breakpoint, kgdb: Do not take mutex for kernel debugger x86, hw_breakpoints, kgdb: Fix kgdb to use hw_breakpoint API hw_breakpoints: Release the bp slot if arch_validate_hwbkpt_settings() fails. perf: Ignore perf.data.old perf report: Fix segmentation fault when running with '-g none'
| * | perf, hw_breakpoint, kgdb: Do not take mutex for kernel debuggerJason Wessel2010-01-301-0/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the regression in functionality where the kernel debugger and the perf API do not nicely share hw breakpoint reservations. The kernel debugger cannot use any mutex_lock() calls because it can start the kernel running from an invalid context. A mutex free version of the reservation API needed to get created for the kernel debugger to safely update hw breakpoint reservations. The possibility for a breakpoint reservation to be concurrently processed at the time that kgdb interrupts the system is improbable. Should this corner case occur the end user is warned, and the kernel debugger will prohibit updating the hardware breakpoint reservations. Any time the kernel debugger reserves a hardware breakpoint it will be a system wide reservation. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: kgdb-bugreport@lists.sourceforge.net Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: torvalds@linux-foundation.org LKML-Reference: <1264719883-7285-3-git-send-email-jason.wessel@windriver.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86, hw_breakpoints, kgdb: Fix kgdb to use hw_breakpoint APIJason Wessel2010-01-301-57/+114
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the 2.6.33 kernel, the hw_breakpoint API is now used for the performance event counters. The hw_breakpoint_handler() now consumes the hw breakpoints that were previously set by kgdb arch specific code. In order for kgdb to work in conjunction with this core API change, kgdb must use some of the low level functions of the hw_breakpoint API to install, uninstall, and deal with hw breakpoint reservations. The kgdb core required a change to call kgdb_disable_hw_debug anytime a slave cpu enters kgdb_wait() in order to keep all the hw breakpoints in sync as well as to prevent hitting a hw breakpoint while kgdb is active. During the architecture specific initialization of kgdb, it will pre-allocate 4 disabled (struct perf event **) structures. Kgdb will use these to manage the capabilities for the 4 hw breakpoint registers, per cpu. Right now the hw_breakpoint API does not have a way to ask how many breakpoints are available, on each CPU so it is possible that the install of a breakpoint might fail when kgdb restores the system to the run state. The intent of this patch is to first get the basic functionality of hw breakpoints working and leave it to the person debugging the kernel to understand what hw breakpoints are in use and what restrictions have been imposed as a result. Breakpoint constraints will be dealt with in a future patch. While atomic, the x86 specific kgdb code will call arch_uninstall_hw_breakpoint() and arch_install_hw_breakpoint() to manage the cpu specific hw breakpoints. The net result of these changes allow kgdb to use the same pool of hw_breakpoints that are used by the perf event API, but neither knows about future reservations for the available hw breakpoint slots. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: kgdb-bugreport@lists.sourceforge.net Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: torvalds@linux-foundation.org LKML-Reference: <1264719883-7285-2-git-send-email-jason.wessel@windriver.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2010-02-017-12/+54
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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/agp: Fix agp_amd64_init regression x86: Add quirk for Intel DG45FC board to avoid low memory corruption x86: Add Dell OptiPlex 760 reboot quirk x86, UV: Fix RTC latency bug by reading replicated cachelines oprofile/x86: add Xeon 7500 series support oprofile/x86: fix crash when profiling more than 28 events lib/dma-debug.c: mark file-local struct symbol static. x86/amd-iommu: Fix deassignment of a device from the pt_domain x86/amd-iommu: Fix IOMMU-API initialization for iommu=pt x86/amd-iommu: Fix NULL pointer dereference in __detach_device() x86/amd-iommu: Fix possible integer overflow
| * | | x86: Add quirk for Intel DG45FC board to avoid low memory corruptionDavid Härdeman2010-01-301-3/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 6aa542a694dc9ea4344a8a590d2628c33d1b9431 added a quirk for the Intel DG45ID board due to low memory corruption. The Intel DG45FC shares the same BIOS (and the same bug) as noted in: http://bugzilla.kernel.org/show_bug.cgi?id=13736 Signed-off-by: David Härdeman <david@hardeman.nu> LKML-Reference: <20100128200254.GA9134@hardeman.nu> Cc: <stable@kernel.org> Cc: Alexey Fisher <bug-track@fisher-privat.net> Cc: ykzhao <yakui.zhao@intel.com> Cc: Tony Bones <aabonesml@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | x86: Add Dell OptiPlex 760 reboot quirkLeann Ogasawara2010-01-281-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dell OptiPlex 760 hangs on reboot unless reboot=bios is used. Add quirk to reboot through the BIOS. BugLink: https://bugs.launchpad.net/bugs/488319 Signed-off-by: Leann Ogasawara <leann.ogasawara@canonical.com> LKML-Reference: <1264634958.27335.1091.camel@emiko> Cc: <stable@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | x86, UV: Fix RTC latency bug by reading replicated cachelinesDimitri Sivanich2010-01-271-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For SGI UV node controllers (HUB) rev 2.0 or greater, use replicated cachelines to read the RTC timer. This optimization allows faster simulataneous reads from a given socket. Signed-off-by: Dimitri Sivanich <sivanich@sgi.com> Cc: Jack Steiner <steiner@sgi.com> LKML-Reference: <20100122154140.GB4975@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | Merge branch 'iommu/fixes' of ↵Ingo Molnar2010-01-273-7/+20
| |\ \ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent
| | * | | x86/amd-iommu: Fix deassignment of a device from the pt_domainJoerg Roedel2010-01-221-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Deassigning a device from the passthrough domain does not work and breaks device assignment to kvm guests. This patch fixes the issue. Cc: stable@kernel.org Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | x86/amd-iommu: Fix IOMMU-API initialization for iommu=ptJoerg Roedel2010-01-223-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves the initialization of the iommu-api out of the dma-ops initialization code. This ensures that the iommu-api is initialized even with iommu=pt. Cc: stable@kernel.org Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | x86/amd-iommu: Fix NULL pointer dereference in __detach_device()Joerg Roedel2010-01-221-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the __detach_device function the reference count for a device-domain binding may become zero. This results in the device being removed from the domain and dev_data->domain will be NULL. This is bad because this pointer is dereferenced when trying to unlock the domain->lock. This patch fixes the issue by keeping the domain in a seperate variable. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | x86/amd-iommu: Fix possible integer overflowJoerg Roedel2010-01-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The variable i in this function could be increased to over 2**32 which would result in an integer overflow when using int. Fix it by changing i to unsigned long. Cc: stable@kernel.org Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| * | | | Merge branch 'urgent' of ↵Ingo Molnar2010-01-271-1/+2
| |\ \ \ \ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into x86/urgent
| | * | | | oprofile/x86: add Xeon 7500 series supportAndi Kleen2010-01-251-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add Xeon 7500 series support to oprofile. Straight forward: it's the same as Core i7, so just detect the model number. No user space changes needed. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
| | * | | | oprofile/x86: fix crash when profiling more than 28 eventsSuravee Suthikulpanit2010-01-251-1/+1
| | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With multiplexing enabled oprofile crashs when profiling more than 28 events. This patch fixes this. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
* | | | | Merge branch 'merge' of ↵Linus Torvalds2010-02-0126-1297/+3406
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: TIF_ABI_PENDING bit removal powerpc/pseries: Fix xics build without CONFIG_SMP powerpc/4xx: Add pcix type 1 transactions powerpc/pci: Add missing call to header fixup powerpc/pci: Add missing hookup to pci_slot powerpc/pci: Add calls to set_pcie_port_type() and set_pcie_hotplug_bridge() powerpc/40x: Update the PowerPC 40x board defconfigs powerpc/44x: Update PowerPC 44x board defconfigs
| * | | | | powerpc: TIF_ABI_PENDING bit removalAndreas Schwab2010-02-013-20/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here are the powerpc bits to remove TIF_ABI_PENDING now that set_personality() is called at the appropriate place in exec. Signed-off-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | | powerpc/pseries: Fix xics build without CONFIG_SMPBenjamin Herrenschmidt2010-02-011-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | desc->affinity doesn't exit in that case. Let's use a macro for the UP variant of get_irq_server(), it's the easiest way, avoids evaluating arguments. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | | Merge commit 'jwb/merge' into mergeBenjamin Herrenschmidt2010-01-2920-1271/+3391
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| | * | | | | powerpc/40x: Update the PowerPC 40x board defconfigsJosh Boyer2010-01-047-445/+1238
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the 40x defconfigs for 2.6.33 Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
| | * | | | | powerpc/44x: Update PowerPC 44x board defconfigsJosh Boyer2010-01-0413-826/+2153
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the 44x defconfig files for 2.6.33 Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
| * | | | | | powerpc/4xx: Add pcix type 1 transactionsStef van Os2010-01-291-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some of the newer 4xx pci cores need an explicit bit set to send type 1 transactions instead of just comparing the bus numbers. This patch enables type 1 transations for pcix nodes, thus enabling devices behind PCI bridges. Signed-off-by: Stef van Os <stef.van.os@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | | | powerpc/pci: Add missing call to header fixupBenjamin Herrenschmidt2010-01-291-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add missing call to pci_fixup_device(pci_fixup_early, ...) when building the pci_dev from scratch off the Open Firmware device-tree Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | | | powerpc/pci: Add missing hookup to pci_slotBenjamin Herrenschmidt2010-01-291-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add missing hookup to existing pci_slot when building the pci_dev from scratch off the Open Firmware device-tree Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | | | powerpc/pci: Add calls to set_pcie_port_type() and set_pcie_hotplug_bridge()Benjamin Herrenschmidt2010-01-291-0/+2
| | |_|_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We are missing these when building the pci_dev from scratch off the Open Firmware device-tree Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | | | | | sparc: TIF_ABI_PENDING bit removalDavid Miller2010-01-293-21/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here are the sparc bits to remove TIF_ABI_PENDING now that set_personality() is called at the appropriate place in exec. Signed-off-by: David S. Miller <davem@davemloft.net> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | x86: get rid of the insane TIF_ABI_PENDING bitH. Peter Anvin2010-01-295-23/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the previous commit made it possible to do the personality setting at the point of no return, we do just that for ELF binaries. And suddenly all the reasons for that insane TIF_ABI_PENDING bit go away, and we can just make SET_PERSONALITY() just do the obvious thing for a 32-bit compat process. Everything becomes much more straightforward this way. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | Split 'flush_old_exec' into two functionsLinus Torvalds2010-01-292-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'flush_old_exec()' is the point of no return when doing an execve(), and it is pretty badly misnamed. It doesn't just flush the old executable environment, it also starts up the new one. Which is very inconvenient for things like setting up the new personality, because we want the new personality to affect the starting of the new environment, but at the same time we do _not_ want the new personality to take effect if flushing the old one fails. As a result, the x86-64 '32-bit' personality is actually done using this insane "I'm going to change the ABI, but I haven't done it yet" bit (TIF_ABI_PENDING), with SET_PERSONALITY() not actually setting the personality, but just the "pending" bit, so that "flush_thread()" can do the actual personality magic. This patch in no way changes any of that insanity, but it does split the 'flush_old_exec()' function up into a preparatory part that can fail (still called flush_old_exec()), and a new part that will actually set up the new exec environment (setup_new_exec()). All callers are changed to trivially comply with the new world order. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | Merge branch 'for-linus' of ↵Linus Torvalds2010-01-292-95/+1
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: x86/PCI: remove IOH range fetching PCI: fix nested spinlock hang in aer_inject
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