summaryrefslogtreecommitdiffstats
path: root/arch/x86/kernel/irqinit_32.c (follow)
Commit message (Collapse)AuthorAgeFilesLines
* x86: unify irqinit_{32,64}.c into irqinit.cPekka Enberg2009-04-101-277/+0
| | | | | | | | Impact: cleanup Reviewed-by Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: unify apic_intr_init() in irqinit_{32,64}.cPekka Enberg2009-04-101-1/+8
| | | | | | | | Impact: cleanup Reviewed-by Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: unify trivial differences in irqinit_{32,64}.cPekka Enberg2009-04-101-0/+20
| | | | | | | | Impact: cleanup Reviewed-by Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: unify native_init_IRQ() in irqinit_{32,64}.cPekka Enberg2009-04-101-19/+34
| | | | | | | | Impact: cleanup Reviewed-by Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: unify init_ISA_irqs() in irqinit_{32,64}.cPekka Enberg2009-04-101-1/+1
| | | | | | | | Impact: cleanup Reviewed-by Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: unify smp_intr_init() in irqinit_{32,64}.hPekka Enberg2009-04-101-3/+5
| | | | | | | | Impact: cleanup Reviewed-by Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: use identical loop constructs in 32-bit and 64-bit native_init_IRQ()Pekka Enberg2009-04-101-1/+1
| | | | | | | | Impact: cleanup Reviewed-by Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: introduce apic_intr_init() in irqinit_32.cPekka Enberg2009-04-101-18/+22
| | | | | | | | Impact: cleanup Reviewed-by Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: introduce smp_intr_init() in irqinit_32.cPekka Enberg2009-04-101-28/+33
| | | | | | | | Impact: cleanup Reviewed-by Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: move init_ISA_irqs() in irqinit_32.c to match ordering in irqinit_64.cPekka Enberg2009-04-101-24/+24
| | | | | | | | Impact: cleanup Reviewed-by Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: move x86_quirk_pre_intr_init() to irqinit_32.cPekka Enberg2009-04-101-1/+19
| | | | | | | | | | | Impact: cleanup In preparation for unifying irqinit_{32,64}.c, make x86_quirk_pre_intr_init() local to irqinit_32.c. Reviewed-by Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumaskLinus Torvalds2009-03-311-2/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask: oprofile: Thou shalt not call __exit functions from __init functions cpumask: remove the now-obsoleted pcibus_to_cpumask(): generic cpumask: remove cpumask_t from core cpumask: convert rcutorture.c cpumask: use new cpumask_ functions in core code. cpumask: remove references to struct irqaction's mask field. cpumask: use mm_cpumask() wrapper: kernel/fork.c cpumask: use set_cpu_active in init/main.c cpumask: remove node_to_first_cpu cpumask: fix seq_bitmap_*() functions. cpumask: remove dangerous CPU_MASK_ALL_PTR, &CPU_MASK_ALL
| * cpumask: remove references to struct irqaction's mask field.Rusty Russell2009-03-301-2/+0
| | | | | | | | | | | | | | | | | | | | Impact: cleanup It's unused, since about 1995. So remove all initialization of it in preparation for actually removing the field. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Thomas Gleixner <tglx@linutronix.de>
* | x86: UV, SGI RTC: add generic system vectorDimitri Sivanich2009-03-041-0/+3
|/ | | | | | | | | | | This patch allocates a system interrupt vector for various platform specific uses. Signed-off-by: Dimitri Sivanich <sivanich@sgi.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: john stultz <johnstul@us.ibm.com> LKML-Reference: <20090304185605.GA24419@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: refactor x86_quirks supportIngo Molnar2009-02-231-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup Make x86_quirks support more transparent. The highlevel methods are now named: extern void x86_quirk_pre_intr_init(void); extern void x86_quirk_intr_init(void); extern void x86_quirk_trap_init(void); extern void x86_quirk_pre_time_init(void); extern void x86_quirk_time_init(void); This makes it clear that if some platform extension has to do something here that it is considered ... weird, and is discouraged. Also remove arch_hooks.h and move it into setup.h (and other header files where appropriate). Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: make x86_32 use tlb_64.cTejun Heo2009-01-211-2/+9
| | | | | | | | | | | | | | | Impact: less contention when issuing invalidate IPI, cleanup Make x86_32 use the same tlb code as 64bit. The 64bit code uses multiple IPI vectors for tlb shootdown to reduce contention. This patch makes x86_32 allocate the same 8 IPIs as x86_64 and share the code paths. Note that the usage of asmlinkage is inconsistent for x86_32 and 64 and calls for further cleanup. This has been noted with a FIXME comment in tlb_64.c. Signed-off-by: Tejun Heo <tj@kernel.org>
* x86: irqinit_32.c fix style problemsJaswinder Singh Rajput2009-01-041-7/+5
| | | | | | | | | | | | | | | | | | Impact: cleanup Fix: WARNING: Use #include <linux/io.h> instead of <asm/io.h> WARNING: Use #include <linux/delay.h> instead of <asm/delay.h> ERROR: trailing whitespace WARNING: externs should be avoided in .c files ERROR: space required after that ',' (ctx:VxV) WARNING: space prohibited between function name and open parenthesis '(' total: 2 errors, 4 warnings Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branch 'cpus4096-for-linus-2' of ↵Linus Torvalds2009-01-021-1/+15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (66 commits) x86: export vector_used_by_percpu_irq x86: use logical apicid in x2apic_cluster's x2apic_cpu_mask_to_apicid_and() sched: nominate preferred wakeup cpu, fix x86: fix lguest used_vectors breakage, -v2 x86: fix warning in arch/x86/kernel/io_apic.c sched: fix warning in kernel/sched.c sched: move test_sd_parent() to an SMP section of sched.h sched: add SD_BALANCE_NEWIDLE at MC and CPU level for sched_mc>0 sched: activate active load balancing in new idle cpus sched: bias task wakeups to preferred semi-idle packages sched: nominate preferred wakeup cpu sched: favour lower logical cpu number for sched_mc balance sched: framework for sched_mc/smt_power_savings=N sched: convert BALANCE_FOR_xx_POWER to inline functions x86: use possible_cpus=NUM to extend the possible cpus allowed x86: fix cpu_mask_to_apicid_and to include cpu_online_mask x86: update io_apic.c to the new cpumask code x86: Introduce topology_core_cpumask()/topology_thread_cpumask() x86: xen: use smp_call_function_many() x86: use work_on_cpu in x86/kernel/cpu/mcheck/mce_amd_64.c ... Fixed up trivial conflict in kernel/time/tick-sched.c manually
| * x86: fix lguest used_vectors breakage, -v2Yinghai Lu2008-12-231-1/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: fix lguest, clean up 32-bit lguest used used_vectors to record vectors, but that model of allocating vectors changed and got broken, after we changed vector allocation to a per_cpu array. Try enable that for 64bit, and the array is used for all vectors that are not managed by vector_irq per_cpu array. Also kill system_vectors[], that is now a duplication of the used_vectors bitmap. [ merged in cpus4096 due to io_apic.c cpumask changes. ] [ -v2, fix build failure ] Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | Merge branch 'irq-core-for-linus' of ↵Linus Torvalds2008-12-311-2/+1
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, sparseirq: clean up Kconfig entry x86: turn CONFIG_SPARSE_IRQ off by default sparseirq: fix numa_migrate_irq_desc dependency and comments sparseirq: add kernel-doc notation for new member in irq_desc, -v2 locking, irq: enclose irq_desc_lock_class in CONFIG_LOCKDEP sparseirq, xen: make sure irq_desc is allocated for interrupts sparseirq: fix !SMP building, #2 x86, sparseirq: move irq_desc according to smp_affinity, v7 proc: enclose desc variable of show_stat() in CONFIG_SPARSE_IRQ sparse irqs: add irqnr.h to the user headers list sparse irqs: handle !GENIRQ platforms sparseirq: fix !SMP && !PCI_MSI && !HT_IRQ build sparseirq: fix Alpha build failure sparseirq: fix typo in !CONFIG_IO_APIC case x86, MSI: pass irq_cfg and irq_desc x86: MSI start irq numbering from nr_irqs_gsi x86: use NR_IRQS_LEGACY sparse irq_desc[] array: core kernel and x86 changes genirq: record IRQ_LEVEL in irq_desc[] irq.h: remove padding from irq_desc on 64bits
| * x86: use NR_IRQS_LEGACYYinghai Lu2008-12-081-1/+1
| | | | | | | | | | | | | | | | | | Impact: cleanup Introduce NR_IRQS_LEGACY instead of hard coded number. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * sparse irq_desc[] array: core kernel and x86 changesYinghai Lu2008-12-081-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: new feature Problem on distro kernels: irq_desc[NR_IRQS] takes megabytes of RAM with NR_CPUS set to large values. The goal is to be able to scale up to much larger NR_IRQS value without impacting the (important) common case. To solve this, we generalize irq_desc[NR_IRQS] to an (optional) array of irq_desc pointers. When CONFIG_SPARSE_IRQ=y is used, we use kzalloc_node to get irq_desc, this also makes the IRQ descriptors NUMA-local (to the site that calls request_irq()). This gets rid of the irq_cfg[] static array on x86 as well: irq_cfg now uses desc->chip_data for x86 to store irq_cfg. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | x86: 32 bit: interrupt stub consistency with 64 bitH. Peter Anvin2008-11-111-1/+1
|/ | | | | | | | | Don't generate interrupt stubs for interrupt vectors below FIRST_EXTERNAL_VECTOR, and make the table of interrupt vectors (interrupt[]) __initconst. Both of these changes both conserve memory and improve consistency with 64 bits. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* genirq: remove artifacts from sparseirq removalIngo Molnar2008-10-161-1/+0
| | | | Signed-off-by: Ingo Molnar <mingo@elte.hu>
* genirq: remove irq_to_desc_allocThomas Gleixner2008-10-161-1/+1
| | | | | | Remove the leftover of sparseirqs. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: make 32bit support per_cpu vectorYinghai Lu2008-10-161-12/+29
| | | | | | | | | | | | | | | | | | so we can merge io_apic_32.c and io_apic_64.c v2: Use cpu_online_map as target cpus for bigsmp, just like 64-bit is doing. Also remove some unused TARGET_CPUS macro. v3: need to check if desc is null in smp_irq_move_cleanup also migration needs to reset vector too, so copy __target_IO_APIC_irq from 64bit. (the duplication will go away once the two files are unified.) Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: make 32 bit to use sparse_irqYinghai Lu2008-10-161-0/+7
| | | | | | | | | | but actually irq still needs to be less than NR_IRQS, because interrupt[NR_IRQS] in entry.S. need to enable per_cpu vector... Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: use nr_irqsYinghai Lu2008-10-161-1/+1
| | | | | | | | also add first_free_entry and pin_map_size, which were NR_IRQS derived constants. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: apic interrupts - move assignments to irqinit_32.c, v2Cyrill Gorcunov2008-08-111-0/+49
| | | | | | | | 64bit mode APIC interrupt handlers are set within irqinit_64.c. Lets do tha same for 32bit mode which would help in furter code merging. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: rename the i8259_32/64.c leftovers to initirq_32/64.cThomas Gleixner2008-05-241-0/+114
The leftovers of the i8259 unification have nothing to do with i8259 at all. They contain interrupt init code and the i8259_xx name is just misleading now. Rename them to initirq_32/64.c Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 19:56:25 +0100