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2010-05-08x86: Clean up the hypervisor layerH. Peter Anvin8-107/+117
Clean up the hypervisor layer and the hypervisor drivers, using an ops structure instead of an enumeration with if statements. The identity of the hypervisor, if needed, can be tested by testing the pointer value in x86_hyper. The MS-HyperV private state is moved into a normal global variable (it's per-system state, not per-CPU state). Being a normal bss variable, it will be left at all zero on non-HyperV platforms, and so can generally be tested for HyperV-specific features without additional qualification. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Acked-by: Greg KH <greg@kroah.com> Cc: Hank Janssen <hjanssen@microsoft.com> Cc: Alok Kataria <akataria@vmware.com> Cc: Ky Srinivasan <ksrinivasan@novell.com> LKML-Reference: <4BE49778.6060800@zytor.com>
2010-05-08x86, HyperV: fix up the license to mshyperv.cGreg Kroah-Hartman1-12/+1
This should have been GPLv2 only, we cut and pasted from the wrong file originally, sorry. Also removed some unneeded boilerplate license code, we all know where to find the GPLv2, and that there's no warranty as that is implicit from the license. Cc: Ky Srinivasan <ksrinivasan@novell.com> Cc: Hank Janssen <hjanssen@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> LKML-Reference: <20100507235541.GA15448@kroah.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-05-07x86: Detect running on a Microsoft HyperV systemKy Srinivasan6-4/+91
This patch integrates HyperV detection within the framework currently used by VmWare. With this patch, we can avoid having to replicate the HyperV detection code in each of the Microsoft HyperV drivers. Reworked and tweaked by Greg K-H to build properly. Signed-off-by: K. Y. Srinivasan <ksrinivasan@novell.com> LKML-Reference: <20100506190841.GA1605@kroah.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Vadim Rozenfeld <vrozenfe@redhat.com> Cc: Avi Kivity <avi@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "K.Prasad" <prasad@linux.vnet.ibm.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Alan Cox <alan@linux.intel.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Hank Janssen <hjanssen@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-05-04x86, cpu: Make APERF/MPERF a normal table-driven flagH. Peter Anvin1-15/+8
APERF/MPERF can be handled via the table like all the other scattered CPU flags. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Thomas Renninger <trenn@suse.de> Cc: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <1270065406-1814-4-git-send-email-bp@amd64.org>
2010-05-04x86, k8: Fix build error when K8_NB is disabledBorislav Petkov1-0/+5
K8_NB depends on PCI and when the last is disabled (allnoconfig) we fail at the final linking stage due to missing exported num_k8_northbridges. Add a header stub for that. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <20100503183036.GJ26107@aftab> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-04-23x86, cacheinfo: Disable index in all four subcachesBorislav Petkov1-17/+43
When disabling an L3 cache index, make sure we disable that index in all four subcaches of the L3. Clarify nomenclature while at it, wrt to disable slots versus disable index and rename accordingly. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <1271945222-5283-6-git-send-email-bp@amd64.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-04-23x86, cacheinfo: Make L3 cache info per nodeBorislav Petkov1-14/+45
Currently, we're allocating L3 cache info and calculating indices for each online cpu which is clearly superfluous. Instead, we need to do this per-node as is each L3 cache. No functional change, only per-cpu memory savings. -v2: Allocate L3 cache descriptors array dynamically. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <1271945222-5283-5-git-send-email-bp@amd64.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-04-23x86, cacheinfo: Reorganize AMD L3 cache structureBorislav Petkov1-21/+32
Add a struct representing L3 cache attributes (subcache sizes and indices count) and move the respective members out of _cpuid4_info. Also, stash the struct pci_dev ptr into the struct simplifying the code even more. There should be no functionality change resulting from this patch except slightly slimming the _cpuid4_info per-cpu vars. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <1271945222-5283-4-git-send-email-bp@amd64.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-04-23x86, cacheinfo: Turn off L3 cache index disable feature in virtualized ↵Frank Arnold1-0/+4
environments When running a quest kernel on xen we get: BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 IP: [<ffffffff8142f2fb>] cpuid4_cache_lookup_regs+0x2ca/0x3df PGD 0 Oops: 0000 [#1] SMP last sysfs file: CPU 0 Modules linked in: Pid: 0, comm: swapper Tainted: G W 2.6.34-rc3 #1 /HVM domU RIP: 0010:[<ffffffff8142f2fb>] [<ffffffff8142f2fb>] cpuid4_cache_lookup_regs+0x 2ca/0x3df RSP: 0018:ffff880002203e08 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000060 RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000000000000000 RBP: ffff880002203ed8 R08: 00000000000017c0 R09: ffff880002203e38 R10: ffff8800023d5d40 R11: ffffffff81a01e28 R12: ffff880187e6f5c0 R13: ffff880002203e34 R14: ffff880002203e58 R15: ffff880002203e68 FS: 0000000000000000(0000) GS:ffff880002200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000038 CR3: 0000000001a3c000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process swapper (pid: 0, threadinfo ffffffff81a00000, task ffffffff81a44020) Stack: ffffffff810d7ecb ffff880002203e20 ffffffff81059140 ffff880002203e30 <0> ffffffff810d7ec9 0000000002203e40 000000000050d140 ffff880002203e70 <0> 0000000002008140 0000000000000086 ffff880040020140 ffffffff81068b8b Call Trace: <IRQ> [<ffffffff810d7ecb>] ? sync_supers_timer_fn+0x0/0x1c [<ffffffff81059140>] ? mod_timer+0x23/0x25 [<ffffffff810d7ec9>] ? arm_supers_timer+0x34/0x36 [<ffffffff81068b8b>] ? hrtimer_get_next_event+0xa7/0xc3 [<ffffffff81058e85>] ? get_next_timer_interrupt+0x19a/0x20d [<ffffffff8142fa23>] get_cpu_leaves+0x5c/0x232 [<ffffffff8106a7b1>] ? sched_clock_local+0x1c/0x82 [<ffffffff8106a9a0>] ? sched_clock_tick+0x75/0x7a [<ffffffff8107748c>] generic_smp_call_function_single_interrupt+0xae/0xd0 [<ffffffff8101f6ef>] smp_call_function_single_interrupt+0x18/0x27 [<ffffffff8100a773>] call_function_single_interrupt+0x13/0x20 <EOI> [<ffffffff8143c468>] ? notifier_call_chain+0x14/0x63 [<ffffffff810295c6>] ? native_safe_halt+0xc/0xd [<ffffffff810114eb>] ? default_idle+0x36/0x53 [<ffffffff81008c22>] cpu_idle+0xaa/0xe4 [<ffffffff81423a9a>] rest_init+0x7e/0x80 [<ffffffff81b10dd2>] start_kernel+0x40e/0x419 [<ffffffff81b102c8>] x86_64_start_reservations+0xb3/0xb7 [<ffffffff81b103c4>] x86_64_start_kernel+0xf8/0x107 Code: 14 d5 40 ff ae 81 8b 14 02 31 c0 3b 15 47 1c 8b 00 7d 0e 48 8b 05 36 1c 8b 00 48 63 d2 48 8b 04 d0 c7 85 5c ff ff ff 00 00 00 00 <8b> 70 38 48 8d 8d 5c ff ff ff 48 8b 78 10 ba c4 01 00 00 e8 eb RIP [<ffffffff8142f2fb>] cpuid4_cache_lookup_regs+0x2ca/0x3df RSP <ffff880002203e08> CR2: 0000000000000038 ---[ end trace a7919e7f17c0a726 ]--- The L3 cache index disable feature of AMD CPUs has to be disabled if the kernel is running as guest on top of a hypervisor because northbridge devices are not available to the guest. Currently, this fixes a boot crash on top of Xen. In the future this will become an issue on KVM as well. Check if northbridge devices are present and do not enable the feature if there are none. Signed-off-by: Frank Arnold <frank.arnold@amd.com> LKML-Reference: <1271945222-5283-3-git-send-email-bp@amd64.org> Acked-by: Borislav Petkov <borislav.petkov@amd.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-04-23x86, cacheinfo: Unify AMD L3 cache index disable checkingBorislav Petkov1-7/+10
All F10h CPUs starting with model 8 resp. 9, stepping 1, support L3 cache index disable. Concentrate the family, model, stepping checking at one place and enable the feature implicitly on upcoming Fam10h models. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <1271945222-5283-2-git-send-email-bp@amd64.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-04-10powernow-k8: Fix frequency reportingMark Langsdorf1-1/+2
With F10, model 10, all valid frequencies are in the ACPI _PST table. Cc: <stable@kernel.org> # 33.x 32.x Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> LKML-Reference: <1270065406-1814-6-git-send-email-bp@amd64.org> Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> Reviewed-by: Thomas Renninger <trenn@suse.de> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-04-10x86, cpufreq: Add APERF/MPERF support for AMD processorsMark Langsdorf5-44/+72
Starting with model 10 of Family 0x10, AMD processors may have support for APERF/MPERF. Add support for identifying it and using it within cpufreq. Move the APERF/MPERF functions out of the acpi-cpufreq code and into their own file so they can easily be shared. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> LKML-Reference: <20100401141956.GA1930@aftab> Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> Reviewed-by: Thomas Renninger <trenn@suse.de> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-04-10x86: Unify APERF/MPERF supportBorislav Petkov2-6/+8
Initialize this CPUID flag feature in common code. It could be made a standalone function later, maybe, if more functionality is duplicated. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <1270065406-1814-4-git-send-email-bp@amd64.org> Reviewed-by: Thomas Renninger <trenn@suse.de> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-04-10powernow-k8: Add core performance boost supportBorislav Petkov2-12/+151
Starting with F10h, revE, AMD processors add support for a dynamic core boosting feature called Core Performance Boost. When a specific condition is present, a subset of the cores on a system are boosted beyond their P0 operating frequency to speed up the performance of single-threaded applications. In the normal case, the system comes out of reset with core boosting enabled. This patch adds a sysfs knob with which core boosting can be switched on or off for benchmarking purposes. While at it, make the CPB code hotplug-aware so that taking cores offline wouldn't interfere with boosting the remaining online cores. Furthermore, add cpu_online_mask hotplug protection as suggested by Andrew. Finally, cleanup the driver init codepath and update copyrights. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <1270065406-1814-3-git-send-email-bp@amd64.org> Reviewed-by: Thomas Renninger <trenn@suse.de> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-04-10x86, cpu: Add AMD core boosting feature flag to /proc/cpuinfoBorislav Petkov2-2/+4
By semi-popular demand, this adds the Core Performance Boost feature flag to /proc/cpuinfo. Possible use case for this is userspace tools like cpufreq-aperf, for example, so that they don't have to jump through hoops of accessing "/dev/cpu/%d/cpuid" in order to check for CPB hw support, or call cpuid from userspace. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <1270065406-1814-2-git-send-email-bp@amd64.org> Reviewed-by: Thomas Renninger <trenn@suse.de> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-03-30Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds5-13/+38
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: Do not free zero sized per cpu areas x86: Make sure free_init_pages() frees pages on page boundary x86: Make smp_locks end with page alignment
2010-03-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds5-13/+13
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Properly truncate pt_regs framepointer in perf callback. arch/sparc/kernel: Use set_cpus_allowed_ptr sparc: Fix use of uid16_t and gid16_t in asm/stat.h
2010-03-30sparc64: Properly truncate pt_regs framepointer in perf callback.David S. Miller1-1/+1
For 32-bit processes, we save the full 64-bits of the regs in pt_regs. But unlike when the userspace actually does load and store instructions, the top 32-bits don't get automatically truncated by the cpu in kernel mode (because the kernel doesn't execute with PSTATE_AM address masking enabled). So we have to do it by hand. Reported-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-29x86: Make sure free_init_pages() frees pages on page boundaryYinghai Lu4-12/+37
When CONFIG_NO_BOOTMEM=y, it could use memory more effiently, or in a more compact fashion. Example: Allocated new RAMDISK: 00ec2000 - 0248ce57 Move RAMDISK from 000000002ea04000 - 000000002ffcee56 to 00ec2000 - 0248ce56 The new RAMDISK's end is not page aligned. Last page could be shared with other users. When free_init_pages are called for initrd or .init, the page could be freed and we could corrupt other data. code segment in free_init_pages(): | for (; addr < end; addr += PAGE_SIZE) { | ClearPageReserved(virt_to_page(addr)); | init_page_count(virt_to_page(addr)); | memset((void *)(addr & ~(PAGE_SIZE-1)), | POISON_FREE_INITMEM, PAGE_SIZE); | free_page(addr); | totalram_pages++; | } last half page could be used as one whole free page. So page align the boundaries. -v2: make the original initramdisk to be aligned, according to Johannes, otherwise we have the chance to lose one page. we still need to keep initrd_end not aligned, otherwise it could confuse decompressor. -v3: change to WARN_ON instead, suggested by Johannes. -v4: use PAGE_ALIGN, suggested by Johannes. We may fix that macro name later to PAGE_ALIGN_UP, and PAGE_ALIGN_DOWN Add comments about assuming ramdisk start is aligned in relocate_initrd(), change to re get ramdisk_image instead of save it to make diff smaller. Add warning for wrong range, suggested by Johannes. -v6: remove one WARN() We need to align beginning in free_init_pages() do not copy more than ramdisk_size, noticed by Johannes Reported-by: Stanislaw Gruszka <sgruszka@redhat.com> Tested-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: David Miller <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <1269830604-26214-3-git-send-email-yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-03-29x86: Make smp_locks end with page alignmentYinghai Lu1-1/+1
Fix: ------------[ cut here ]------------ WARNING: at arch/x86/mm/init.c:342 free_init_pages+0x4c/0xfa() free_init_pages: range [0x40daf000, 0x40db5c24] is not aligned Modules linked in: Pid: 0, comm: swapper Not tainted 2.6.34-rc2-tip-03946-g4f16b23-dirty #50 Call Trace: [<40232e9f>] warn_slowpath_common+0x65/0x7c [<4021c9f0>] ? free_init_pages+0x4c/0xfa [<40881434>] ? _etext+0x0/0x24 [<40232eea>] warn_slowpath_fmt+0x24/0x27 [<4021c9f0>] free_init_pages+0x4c/0xfa [<40881434>] ? _etext+0x0/0x24 [<40d3f4bd>] alternative_instructions+0xf6/0x100 [<40d3fe4f>] check_bugs+0xbd/0xbf [<40d398a7>] start_kernel+0x2d5/0x2e4 [<40d390ce>] i386_start_kernel+0xce/0xd5 ---[ end trace 4eaa2a86a8e2da22 ]--- Comments in vmlinux.lds.S already said: | /* | * smp_locks might be freed after init | * start/end must be page aligned | */ Signed-off-by: Yinghai Lu <yinghai@kernel.org> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: David Miller <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <1269830604-26214-2-git-send-email-yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-03-29frv/chris: fix lines with a missing semicolonsDavid Howells2-2/+2
Commit b26b2d494b659f9 ("resource/PCI: align functions now return start of resource") added lines with missing semicolons. Add the missing semicolons to the FRV and CRIS arch code. Signed-off-by: David Howells <dhowells@redhat.com> Cc: linux@dominikbrodowski.net Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-28arch/sparc/kernel: Use set_cpus_allowed_ptrJulia Lawall3-10/+10
Use set_cpus_allowed_ptr rather than set_cpus_allowed. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression E1,E2; @@ - set_cpus_allowed(E1, cpumask_of_cpu(E2)) + set_cpus_allowed_ptr(E1, cpumask_of(E2)) @@ expression E; identifier I; @@ - set_cpus_allowed(E, I) + set_cpus_allowed_ptr(E, &I) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-27sparc: Fix use of uid16_t and gid16_t in asm/stat.hRob Landley1-2/+2
Signed-off-by: Rob Landley <rob@landley.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-27Merge branch 'for-linus' of ↵Linus Torvalds3-12/+19
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: truncate _CRS windows with _LEN > _MAX - _MIN + 1 x86/PCI: for host bridge address space collisions, show conflicting resource frv/PCI: remove redundant warnings x86/PCI: remove redundant warnings PCI: don't say we claimed a resource if we failed PCI quirk: Disable MSI on VIA K8T890 systems PCI quirk: RS780/RS880: work around missing MSI initialization PCI quirk: only apply CX700 PCI bus parking quirk if external VT6212L is present PCI: complain about devices that seem to be broken PCI: print resources consistently with %pR PCI: make disabled window printk style match the enabled ones PCI: break out primary/secondary/subordinate for readability PCI: for address space collisions, show conflicting resource resources: add interfaces that return conflict information PCI: cleanup error return for pcix get and set mmrbc functions PCI: fix access of PCI_X_CMD by pcix get and set mmrbc functions PCI: kill off pci_register_set_vga_state() symbol export. PCI: fix return value from pcix_get_max_mmrbc()
2010-03-27Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds7-12/+61
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, amd: Restrict usage of c1e_idle() x86: Fix placement of FIX_OHCI1394_BASE x86: Handle legacy PIC interrupts on all the cpu's
2010-03-27Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds2-0/+30
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: powerpc/perf_events: Fix call-graph recording, add perf_arch_fetch_caller_regs perf top: Add missing initialization to zero perf probe: Use original address instead of CU-based address perf probe: Fix offset to allow signed value perf top: Improve the autosizing of column lenghts perf probe: Fix need_dwarf flag if lazy matching is used perf probe: Fix probe_point buffer overrun
2010-03-25x86/PCI: truncate _CRS windows with _LEN > _MAX - _MIN + 1Bjorn Helgaas1-1/+12
Yanko's GA-MA78GM-S2H (BIOS F11) reports the following resource in a PCI host bridge _CRS: [07] 32-Bit DWORD Address Space Resource Min Relocatability : MinFixed Max Relocatability : MaxFixed Address Minimum : CFF00000 (_MIN) Address Maximum : FEBFFFFF (_MAX) Address Length : 3EE10000 (_LEN) This is invalid per spec (ACPI 4.0, 6.4.3.5) because it's a fixed size, fixed location descriptor, but _LEN != _MAX - _MIN + 1. Based on https://bugzilla.kernel.org/show_bug.cgi?id=15480#c15, I think Windows handles this by truncating the window so it fits between _MIN and _MAX. I also verified this by modifying the SeaBIOS DSDT and booting Windows 2008 R2 with qemu. This patch makes Linux truncate the window, too, which fixes: http://bugzilla.kernel.org/show_bug.cgi?id=15480 Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Tested-by: Yanko Kaneti <yaneti@declera.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-03-25x86/PCI: for host bridge address space collisions, show conflicting resourceBjorn Helgaas1-3/+6
With insert_resource_conflict(), we can learn what the actual conflict is, so print that info for debugging purposes. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-03-25frv/PCI: remove redundant warningsBjorn Helgaas1-3/+1
pci_claim_resource() already prints more detailed error messages, so these are really redundant. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-03-25x86/PCI: remove redundant warningsBjorn Helgaas1-5/+0
pci_claim_resource() already prints more detailed error messages, so these are really redundant. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-03-25Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds11-31/+102
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] Orion5x: replace KEY_WLAN with KEY_WPS_BUTTON [ARM] Kirkwood: WPS button keycode mapping pxa168fb: fix incorrect resource calculation [ARM] pxa/raumfeld: fix button name [ARM] pxa/raumfeld: remove duplicated #include [ARM] locomo: fix unpaired spin_lock_irqsave [ARM] locomo: fix SPI register offset [ARM] pxa/sharpsl: add dependency of max1111 driver to sharpsl_pm [ARM] pxa: remove unnecessary 'select FB_W100' from some platforms [ARM] pxa: remove spi cs gpio direction to avoid clash with driver [ARM] mmp: fix for variables in uncompress.h being discarded [ARM] pxa: fix for variables in uncompress.h being discarded ARM: Update mach-types ARM: Fix IXP23xx build error in mach/memory.h
2010-03-25Merge branch 'sh/for-2.6.34' of ↵Linus Torvalds11-18/+42
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh/for-2.6.34' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Silence unintialized variable warnings in dwarf unwinder. sh: Tidy up a couple of section mismatches. sh: Fix build after dynamic PMB rework sh: Replace unsafe manipulation of MMUCR sh: Flush ITLB too in PTEAEX's flush_tlb_page() sh64: Remove long unused mid_sched macro SH: remove superfluous warning from the serial driver SH: fix SCIFA SCASCR register bit definitions serial: sh-sci: fix SH-Mobile SH breakage sh: Add watch-dog register address for SH7722/SH7723/SH7724 sh: ms7724: Add tiny-document for sound sh: mach-ecovec24: Add i2c_put_adapter on sh_eth_init
2010-03-24[S390] fix boot failures with compressed kernelsMartin Schwidefsky3-6/+7
Fix two bugs with the kernel image compression: 1) reset the bss section of the compressed vmlinux 2) clear the high half of the registers for 64 bit early enough for the decompression step Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-03-24[S390] system.h: Fix compile error for 1 and 2 byte cmpxchgChristian Borntraeger1-4/+4
commit 024914477e15ef8b17f271ec47f1bb8a589f0806 "memcg: move charges of anonymous swap" revealed that the 1 byte and 2 byte cmpxchg is currently broken: arch/s390/include/asm/system.h: Assembler messages: arch/s390/include/asm/system.h:241: Error: junk at end of line: `(%r5)' make[1]: *** [mm/page_cgroup.o] Error 1 make[1]: *** Waiting for unfinished jobs.... It turned out that commit 987bcdacb18a3adc2a48d85c9b005069c2f4dd7b ([S390] use inline assembly contraints available with gcc 3.3.3) broke the inline assembly. The or operands are now in constraint 3 and 4 instead of 2 and 3. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-03-24[S390] smp: fix lowcore allocationHeiko Carstens1-2/+2
The intermediate lowcore for CONFIG_SMP is allocated using a call to __alloc_bootmem() with a goal of 0. That however doesn't guarantee that the allocated piece of memory is below 2GB. Instead we should call __alloc_bootmem_low(). Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-03-24[S390] zcore: CPU registers are not saved under LPARMichael Holzheu3-3/+30
To save the registers for all CPUs a sigp "store status" is done that stores the registers to address absolute zero. To access storage at absolute zero, normally the address of the prefix register of the accessing CPU has to be used. This does not work when large pages are active (currently only under LPAR). In order to fix that problem, instead of memcpy memcpy_real is used, which switches to real mode where prefixing works. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-03-23[ARM] Orion5x: replace KEY_WLAN with KEY_WPS_BUTTONChristian Lamparter1-1/+1
"Input: add KEY_WPS_BUTTON definition" introduced a generic keycode for WPS input events. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Nicolas Pitre <nico@marvell.com>
2010-03-23[ARM] Kirkwood: WPS button keycode mappingChristian Lamparter1-2/+2
Commit "Input: add KEY_WPS_BUTTON definition" added a generic keycode for WPS button. Let's use it, instead of "F1" mapping. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Nicolas Pitre <nico@marvell.com>
2010-03-23Merge branch 'fix' of ↵Russell King7-25/+25
git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
2010-03-23sh: Silence unintialized variable warnings in dwarf unwinder.Paul Mundt1-2/+2
The parent rb_node needs to be initialized to shut up the compiler, even though we're unlikely to ever hit this issue at run time. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-23sh: Tidy up a couple of section mismatches.Paul Mundt2-2/+2
select_idle_routine() and register_sh_pmu() both needed their annotations fixed up to silence section mismatch warnings. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-23sh: Fix build after dynamic PMB reworkMatt Fleming1-0/+2
set_pmb_entry() is now only used by a function that is wrapped in #ifdef CONFIG_PM, so wrap set_pmb_entry() in CONFIG_PM too. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-23sh: Replace unsafe manipulation of MMUCRMatt Fleming2-7/+16
Setting the TI in MMUCR causes all the TLB bits in MMUCR to be cleared. Unfortunately, the TLB wired bits are also cleared when setting the TI bit, causing any wired TLB entries to become unwired. Use local_flush_tlb_all() which implements TLB flushing in a safer manner by using the memory-mapped TLB registers. As each CPU has its own PMB the modifications in pmb_init() only affect the local CPU, so only flush the local CPU's TLB. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-23sh: Flush ITLB too in PTEAEX's flush_tlb_page()Matt Fleming2-0/+4
flush_tlb_page() can be used to flush TLB entries that map executable pages. Therefore, we need to ensure that the ITLB is also flushed in local_flush_tlb_page(). Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-23sh64: Remove long unused mid_sched macroAndreas Bombe1-7/+0
interruptible_sleep_on() is referenced for use in the mid_sched macro which is not used anywhere. Remove reference and macro as well as the comment which appears to belong with them. Signed-off-by: Andreas Bombe <aeb@debian.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-23sh: Add watch-dog register address for SH7722/SH7723/SH7724Kuninori Morimoto1-0/+6
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-23sh: ms7724: Add tiny-document for soundKuninori Morimoto1-0/+8
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-23sh: mach-ecovec24: Add i2c_put_adapter on sh_eth_initKuninori Morimoto1-0/+2
i2c_put_adapter is needed after i2c_get_adapter Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-22x86 / perf: Fix suspend to RAM on HP nx6325Rafael J. Wysocki1-3/+5
Commit 3f6da3905398826d85731247e7fbcf53400c18bd (perf: Rework and fix the arch CPU-hotplug hooks) broke suspend to RAM on my HP nx6325 (and most likely on other AMD-based boxes too) by allowing amd_pmu_cpu_offline() to be executed for CPUs that are going offline as part of the suspend process. The problem is that cpuhw->amd_nb may be NULL already, so the function should make sure it's not NULL before accessing the object pointed to by it. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-22[ARM] pxa/raumfeld: fix button nameDaniel Mack1-1/+1
This fixes a warning when booting 2.6.34-rc2: [ 26.619814] ------------[ cut here ]------------ [ 26.624604] WARNING: at fs/proc/generic.c:316 __xlate_proc_name+0xac/0xc0() [ 26.631555] name 'on/off button' [ 26.634753] Modules linked in: Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Sven Neumann <s.neumann@raumfeld.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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