- 16 Oct, 2008 40 commits
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Suresh Siddha authored
It is possible that, instead of PCI endpoint/sub-hierarchy structures, only IO-APIC/HPET devices may be reported under device scope structures. Fix the devices_cnt error check, which cares about only PCI structures and removes the dma-remapping unit structure (dmaru) when the devices_cnt is zero and include_all flag is not set. Signed-off-by:
Suresh Siddha <suresh.b.siddha@intel.com> Acked-by:
Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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Suresh Siddha authored
In dmar_dev_scope_init(), functions called under for_each_drhd_unit()/ for_each_rmrr_units() can delete the list entry under some error conditions. So we should use list_for_each_entry_safe() for safe traversal. Signed-off-by:
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Yinghai Lu authored
initialize the return value in dmar_parse_dev() Signed-off-by:
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Yinghai Lu authored
Very early detection of the DMAR tables will setup fixmap mapping. For parsing these tables later (while enabling dma and/or interrupt remapping), early fixmap mapping shouldn't be used. Fix it by calling table detection routines again, which will call generic apci_get_table() for setting up the correct mapping. Signed-off-by:
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Yinghai Lu authored
APIC_ARBPRI is a reserved register for XAPIC and beyond. APIC_RRR is a reserved register except for 82489DX, APIC for Pentium processors. APIC_EOI is a write only register. APIC_DFR is reserved in x2apic mode. Access to these registers in x2apic will result in #GP fault. Fix these apic register accesses. Signed-off-by:
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Ingo Molnar authored
Stephen Rothwell reported such build failures on m68k/sparc/s390: > ERROR: "nr_irqs" [drivers/net/hamradio/baycom_ser_fdx.ko] undefined! > ERROR: "nr_irqs" [drivers/net/3c59x.ko] undefined! export nr_irqs on these architectures too. Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
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Cyrill Gorcunov authored
According to entry_64.S we do pass pt_regs pointer into interrupt handlers but don't use them. So we safely may merge the declarations. Signed-off-by:
Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by:
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Yinghai Lu authored
fix non-sparseirq architectures. Signed-off-by:
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Yinghai Lu authored
Use the 32-bit APIC calibration code - it's more mature. Signed-of-by:
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Yinghai Lu authored
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Yinghai Lu authored
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Yinghai Lu authored
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Yinghai Lu authored
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Yinghai Lu authored
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Yinghai Lu authored
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Yinghai Lu <yhlu.kernel@mgail.com> Signed-off-by:
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Yinghai Lu authored
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Yinghai Lu authored
except x2apic, detec_init_APIC, and calibrating_APIC_clock Signed-off-by:
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Yinghai Lu authored
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Yinghai Lu authored
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Yinghai Lu authored
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Cyrill Gorcunov authored
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Cyrill Gorcunov authored
All callers are __init or __cpuinit so there is no need to hold this code without CPU_HOTPLUG being set. Signed-off-by:
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Cyrill Gorcunov authored
- remove useless read of APIC_LVR - wrap with preempt_disable/enable - check for integrated APIC just in place v2: fix by Yinghai Lu. fix lapic_is_integrated using let 64-bit too have pic_mode Signed-off-by:
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Cyrill Gorcunov authored
Do not check for SPUTIOUS_APIC_VECTOR definition twice. Check it once - is what we need. Signed-off-by:
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Cyrill Gorcunov authored
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Cyrill Gorcunov authored
We don't really use it now on 64bit mode but could reserve it for future. Signed-off-by:
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Cyrill Gorcunov authored
There is no need to hold this code if CPU_HOTPLUG is not defined. Signed-off-by:
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Alok Kataria authored
Initialize vector_irq for the vmi used vector, to point to correct irq. Signed-off-by:
Alok N Kataria <akataria@vmware.com> Signed-off-by:
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Yinghai Lu authored
otherwise Xen is _completely_ unusable with 5 or more VCPUs. (when !CONFIG_HAVE_SPARSE_IRQ). based on Alex Nixon's patch. also add +1 offset after redir_entries Signed-off-by:
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by:
Alex Nixon <alex.nixon@citrix.com> Signed-off-by:
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Yinghai Lu authored
Missed two lines when copying. Fix panic on one of Ingo's machines that need to adjust ioapic id when acpi off/ 32bit. Signed-off-by:
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Yinghai Lu authored
Suresh Siddha noticed that we should have a spinlock around it. Signed-off-by:
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Suresh Siddha authored
In irq_2_iommu_alloc() and set_irte_irq(), irq_to_desc or irq_2_iommu pointers may not be allocated. So use the routines which will allocate them if they are not already allocated. Signed-off-by:
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Ingo Molnar authored
fix warning: arch/x86/kernel/io_apic.c: In function ‘print_local_APIC’: arch/x86/kernel/io_apic.c:1786: warning: format ‘%08x’ expects type ‘unsigned int’, but argument 2 has type ‘u64’ arch/x86/kernel/io_apic.c:1787: warning: format ‘%08x’ expects type ‘unsigned int’, but argument 2 has type ‘u64’ By creating uniform behavior on 32-bit and 64-bit and printing out the ICR value in two 32-bit words. Code has changed: text data bss dec hex filename 22901 19650 17040 59591 e8c7 io_apic.o.before 22899 19650 17040 59589 e8c5 io_apic.o.after Due to the 32-bit cast narrowing the printed out value on 64-bit. Signed-off-by: -
Alex Nixon authored
Following commit 9c3f2468d8339866d9ef6a25aae31a8909c6be0d, do_IRQ() looks up the IRQ number in the per-cpu variable vector_irq. This commit makes Xen initialise an identity vector_irq map for both X86_32 and X86_64. Signed-off-by:
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Yinghai Lu authored
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Alex Nixon authored
When sparse IRQs are enabled, it is not safe to assume an IRQ descriptor exists for every possible IRQ. This patch causes init_evtchn_cpu_bindings to skip initialisation of IRQ descriptors which don't exist. Signed-off-by:
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Yinghai Lu authored
for !CONFIG_HAVE_SPARSE_IRQ fix: In file included from arch/x86/kernel/early-quirks.c:18: include/asm/io_apic.h: In function 'probe_nr_irqs': include/asm/io_apic.h:209: error: 'NR_IRQS' undeclared (first use in this function) include/asm/io_apic.h:209: error: (Each undeclared identifier is reported only once include/asm/io_apic.h:209: error: for each function it appears in.) v2: fix by Ingo Signed-off-by:
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Yinghai Lu authored
Ingo said sparse_irq is some intrusive. need to make it selectable to make it simple, remove irq_desc as parameter in some functions. (ack, eoi, set_affinity). may need to make member if irq_chip to take irq_desc, or struct irq later. Signed-off-by:
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Yinghai Lu authored
instead of print that of all APs at the time Signed-off-by:
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Yinghai Lu authored
no user now Signed-off-by:
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