- 10 Jul, 2008 18 commits
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Ingo Molnar authored
Signed-off-by:Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
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Ingo Molnar authored
add early init quirks for VisWS. This gradually turns the VISWS subarch into a generic PC architecture. Signed-off-by: -
Ingo Molnar authored
first step: make the VISWS subarch boot on a regular PC. We take various shortcuts for that. We copy the generic arch setup file over into the VISWS setup file. This is the only step that is not expected to boot on a real VISWS. Signed-off-by: -
Ingo Molnar authored
Add early quirks support. In preparation of enabling the generic architecture to boot on a VISWS. This will allow us to remove the VISWS subarch and all its complications. Signed-off-by: -
Ingo Molnar authored
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Ingo Molnar authored
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Ingo Molnar authored
these two sub-architectures want PCI to be default-on, not default-off. Reported-by:
Robert Richter <robert.richter@amd.com> Signed-off-by:
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Maciej W. Rozycki authored
When an interrupt is rerouted to a different I/O APIC pin the relevant entry of the irq_2_pin list should get updated accordingly so that operations are performed on the correct redirection entry. This is already done by the 32-bit variation of the code and here is a complementing 64-bit implementation. Should make someone's decision less tough when merging the two. ;) Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by:
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Ingo Molnar authored
This reverts commit 90221a61a71b7ad659d8741cf1e404506b174982. This too was just temporary diagnostics - not needed now that we've got the final fix via: | commit e2079c43 | Author: Rafael J. Wysocki <rjw@sisk.pl> | Date: Tue Jul 8 16:12:26 2008 +0200 | | x86: fix C1E && nx6325 stability problem Signed-off-by:
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Ingo Molnar authored
This reverts commit a74a1cc3df0be89658bc735c8aed80c8392e2c15. This was just temporary diagnostics commit - not needed now that we've got the final fix. Signed-off-by: -
FUJITA Tomonori authored
AMD_IOMMU should depend on IOMMU_HELPER since they are the IOMMU helper functions. SWIOTLB requires IOMMU_HELPER so declaring that AMD_IOMMU depends on SWIOTLB properly fixes the problems. Signed-off-by: -
FUJITA Tomonori authored
This remove lots of duplications in iommu.h and gart.h. The end result of this patch is: - iommu.h is a header file for everyone related with IOMMUs. - gart.h is the private header file. Only pci-gart_64.c and its friends include it. Signed-off-by:
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: fujita.tomonori@lab.ntt.co.jp Signed-off-by:
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Ingo Molnar authored
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Yinghai Lu authored
even on 64bit systems with less than 4G RAM, we can now use fixmap to handle acpi SIT near end of ram. change e820_end to e820_end_of_ram again? or e820_ram_pfn? Signed-off-by:
Yinghai Lu <yhlu.kernel@gmail.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by:
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Yinghai Lu authored
and let 64-bit to fall back to use fixmap too. Signed-off-by:
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Yinghai Lu authored
fix phys_pmd_init to make sure not to return bigger value than end. also print out range split:1G/2M/4K in init_memory_mapping(). Signed-off-by:
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Ingo Molnar authored
fix: arch/x86/kernel/built-in.o: In function `dmi_ignore_irq0_timer_override': boot.c:(.init.text+0x3ea4): undefined reference to `force_mask_ioapic_irq_2' Signed-off-by:
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- 09 Jul, 2008 22 commits
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Vitaly Mayatskikh authored
Switch copy_user_generic_string(), copy_user_generic_unrolled() and __copy_user_nocache() from custom tail handlers to generic copy_user_tail_handle(). Signed-off-by:
Vitaly Mayatskikh <v.mayatskih@gmail.com> Acked-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
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Vitaly Mayatskikh authored
Introduce generic C routine for handling necessary tail operations after protection fault in copy_*_user on x86. Signed-off-by:
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Ingo Molnar authored
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Cyrill Gorcunov authored
Signed-off-by:
Cyrill Gorcunov <gorcunov@gmail.com> Cc: Cyrill Gorcunov <gorcunov@gmail.com> Cc: akpm@linux-foundation.org Cc: andi@firstfloor.org Signed-off-by:
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Yinghai Lu authored
to avoid warning from find_low_pfn_range for high pages size etc Signed-off-by:
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Robert Richter authored
So far subsys_initcalls has been executed in this order depending on the object order in the Makefile: arch/x86/pci/visws.c:subsys_initcall(pcibios_init); arch/x86/pci/numa.c:subsys_initcall(pci_numa_init); arch/x86/pci/acpi.c:subsys_initcall(pci_acpi_init); arch/x86/pci/legacy.c:subsys_initcall(pci_legacy_init); arch/x86/pci/irq.c:subsys_initcall(pcibios_irq_init); arch/x86/pci/common.c:subsys_initcall(pcibios_init); This patch removes the ordering dependency. There is now only one subsys_initcall function that contains subsystem initialization code with a defined order. Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by:
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Robert Richter authored
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Robert Richter authored
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Robert Richter authored
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Robert Richter authored
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Robert Richter authored
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Robert Richter authored
This should be safe since mmconfig*.o and init.o do not contain *initcalls with the same level as in other files. Signed-off-by:
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Robert Richter authored
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Robert Richter authored
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Robert Richter authored
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Robert Richter authored
No functional nor ordering changes here. Signed-off-by:
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Ingo Molnar authored
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Ingo Molnar authored
fix: arch/x86/kernel/acpi/boot.c: In function ‘dmi_ignore_irq0_timer_override’: arch/x86/kernel/acpi/boot.c:1443: error: implicit declaration of function ‘force_mask_ioapic_irq_2’ Signed-off-by: -
Rafael J. Wysocki authored
The problems are that, with the ACPI vs timer overring issue _fixed_, after using the box for some time (between several seconds and 1 hour, at random) processes get very high CPU loads (once I've got X using 107% of the CPU, for example) and the system becomes unresponsive, as though there were interrupts lost or something similar. Andreas Herrman reproduced similar problems: > Ok, now I've reproduced the stability problem. > - Using tip/master, > - reverting e38502eb8aa82314d5ab0eba45f50e6790dadd88 and > - applying your patch from this posting > http://marc.info/?l=linux-kernel&m=121539354224562&w=4 > > Starting X, firefox, gimp, tuxpaint and doing some drawing in tuxpaint > results in a slow system. Drawing is almost not possible anymore -- > Selections of new colors, cursors etc. is performed with huge delay > if it's performed at all. > > BTW, the code sets up timer IRQ as Virtual Wire IRQ: > > Jul 8 14:57:58 kodscha IO-APIC (apicid-pin) 2-22, 2-23 not connected. > Jul 8 14:57:58 kodscha ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 > Jul 8 14:57:58 kodscha ...trying to set up timer as Virtual Wire IRQ... works. > > and both INT0 and INT2 of IOAPIC are masked: > > Jul 8 14:57:58 kodscha NR Dst Mask Trig IRR Pol Stat Dmod Deli Vect: > Jul 8 14:57:58 kodscha 00 000 1 0 0 0 0 0 0 00 > Jul 8 14:57:58 kodscha 01 003 0 0 0 0 0 1 1 31 > Jul 8 14:57:58 kodscha 02 003 1 0 0 0 0 0 0 30 > > I've also seen strange CPU utilization -- with syslog-ng: > > top - 15:33:06 up 35 min, 4 users, load average: 1.70, 0.68, 0.37 > Tasks: 64 total, 4 running, 60 sleeping, 0 stopped, 0 zombie > Cpu0 : 0.0%us,100.0%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st > Cpu1 : 6.4%us, 87.2%sy, 0.0%ni, 5.8%id, 0.0%wa, 0.6%hi, 0.0%si, 0.0%st > Mem: 895384k total, 283568k used, 611816k free, 35492k buffers > Swap: 1959920k total, 0k used, 1959920k free, 163044k cached > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > 4632 root 20 0 17216 800 580 S 104 0.1 0:34.22 syslog-ng > 28505 root 20 0 205m 11m 4024 S 6 1.3 0:21.16 X > 28518 root 20 0 56292 5652 4492 S 1 0.6 0:01.80 fluxbox > 1 root 20 0 3724 608 508 S 0 0.1 0:00.36 init > > So far I have no clue why C1E-idle in conjunction with virtual wire > mode causes this strange behaviour. > > ... and I start to think about the root cause of all this. > > I've performed similar tests under X with the IRQ0/INT0 configuration and > I did not see above symptoms. So lets fall back to the IRQ0/INT0 configuration on this box. This basically restores the dont-use-the-lapic-timer exception mechanism that was unconditional on this box prior commit 8750bf5 ("x86: add C1E aware idle function"). Signed-off-by:
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FUJITA Tomonori authored
Hmm, looks like it would be nice to have more cleanups of iommu.h and gart.h. Signed-off-by:
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Yinghai Lu authored
handle head and tail that are not aligned to big pages (2MB/1GB boundary). with this patch, on system that support gbpages, change: last_map_addr: 1080000000 end: 1078000000 to: last_map_addr: 1078000000 end: 1078000000 Signed-off-by:
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Yinghai Lu authored
When system have 4g less ram installed, and acpi table sit near end of ram, make max_pfn cover them too, so 64bit kernel don't need to mess up fixmap. Signed-off-by:
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