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2008-10-16x86: io-apic - declare irq_cfg_lock for SPARSE_IRQ onlyCyrill Gorcunov
We use irq_cfg_lock lock in SPARSE_IRQ only context so move it under #ifdef and compiler will be happy. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: io-apic - use ARRAY_SIZE macroCyrill Gorcunov
Make the code width a bit shorter with ARRAY_SIZE macro. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16dyn_array: fix typoYinghai Lu
Andrew found the typo could break some platforms. also fix a checkpatch warning. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: print out if acpi want physical flat of allYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16dyn_array: don't break compiling for !CONFIG_SMPH. Peter Anvin
Impact: build failure on uniprocessor When compiling for !CONFIG_SMP, per_cpu_alloc_dyn_array() would fail to compile, since it uses per_cpu_offset, which is not defined for uniprocessor builds. Hence, do not compile per_cpu_alloc_dyn_array() for !CONFIG_SMP. Attempting to call this function in a uniprocessor configuration would be simply wrong in the first place. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-16dmar: fix dmar_parse_dev() devices_cnt error condition checkSuresh Siddha
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>
2008-10-16dmar: use list_for_each_entry_safe() in dmar_dev_scope_init()Suresh Siddha
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: Suresh Siddha <suresh.b.siddha@intel.com> Acked-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16dmar: initialize the return value in dmar_parse_dev()Yinghai Lu
initialize the return value in dmar_parse_dev() Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16dmar: fix using early fixmap mapping for DMAR table parsingYinghai Lu
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: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x2apic: fix reserved APIC register accesses in print_local_APIC()Yinghai Lu
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: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16sparseirq: export nr_irqs on m68k/sparc/s390Ingo Molnar
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: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic - unify smp_spurious/error_interrupt declarationCyrill Gorcunov
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: Ingo Molnar <mingo@elte.hu>
2008-10-16sparseirq: move kstat_irqs from kstat to irq_desc - fixYinghai Lu
fix non-sparseirq architectures. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: let 64 bit to use 32 bit calibrate_apic_clockYinghai Lu
Use the 32-bit APIC calibration code - it's more mature. Signed-of-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: rename apic_32.c and apic_64.c to apic.cYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic copy apic_64.c to apic_32.cYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic copy calibrate_APIC_clock to each other in apic_32/64.cYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic unify smp_spurious/error_interruptYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: merge header files in apic_xx.cYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: copy detect_init_APIC to the otherYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@mgail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: merge APIC_init_uniprocessorYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: make apic_32/64.c more likeYinghai Lu
except x2apic, detec_init_APIC, and calibrating_APIC_clock Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: add hard_smp_prossor_id with MACRO in io_apic_xx.cYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: use HAVE_X2APIC in apic_64.cYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic_xx.c order variablesYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic - unify smp_apic_timer_interruptCyrill Gorcunov
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic_32.c should use __cpuinit sectionCyrill Gorcunov
All callers are __init or __cpuinit so there is no need to hold this code without CPU_HOTPLUG being set. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic - unify setup_local_APICCyrill Gorcunov
- 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: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic_64.c - add sanity check for spurious vector definitionCyrill Gorcunov
Do not check for SPUTIOUS_APIC_VECTOR definition twice. Check it once - is what we need. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic - unify setup_apicpmtimerCyrill Gorcunov
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic - introduce get_physical_broadcast for 64bitCyrill Gorcunov
We don't really use it now on 64bit mode but could reserve it for future. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic_64.c - setup_APIC_timer has to be __cpuinit functionCyrill Gorcunov
There is no need to hold this code if CPU_HOTPLUG is not defined. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: VMI, initialize IRQ vectorAlok Kataria
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: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: fix probe_nr_irqs for xenYinghai Lu
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: Yinghai Lu <yhlu.kernel@gmail.com> Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Alex Nixon <alex.nixon@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: fix 32-bit ioapic lockup with sparseirqsYinghai Lu
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: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: sparse_irq needs spin_lock in allocationsYinghai Lu
Suresh Siddha noticed that we should have a spinlock around it. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16sparseirq: fix intr-remap with dyn_array/nr_irqs changes]Suresh Siddha
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: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16warning: fix arch x86 kernel io_apic cIngo Molnar
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: Ingo Molnar <mingo@elte.hu>
2008-10-16xen: Fix bug `do_IRQ: cannot handle IRQ -1 vector 0x6 cpu 1'Alex Nixon
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: Alex Nixon <alex.nixon@citrix.com> Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16dyn_array: split dyn_array functions from init/main.cYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16xen: fix memory access violation bug when CONFIG_HAVE_SPARSE_IRQ is enabledAlex Nixon
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: Alex Nixon <alex.nixon@citrix.com> Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: probe nr_irqs even only mptable is usedYinghai Lu
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: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: make HAVE_SPARSE_IRQ support selectableYinghai Lu
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: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: print local APIC of APs one by oneYinghai Lu
instead of print that of all APs at the time Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: remove first_free_entry/pin_map_sizeYinghai Lu
no user now Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: unify ack_apic_edgeYinghai Lu
use code in 64 to replace move_native_irq(irq, desc); in 32 bit Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: unify mask_IO_APIC_irqYinghai Lu
use MACRO for 32 bit too Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: irq: interrupt array size should be NR_VECTORSYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16pci: change msi-x vector to 32bitYinghai Lu
we are using 28bit pci (bus/dev/fn + 12 bits) as irq number, so the cache for irq number should be 32 bit too. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16io_apic: make 32 bit have io_apic resource in /proc/iomemYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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