lwn.git/arch/x86/kernel/io_apic.c, branch docs-mw

x86, apic: move APIC drivers to arch/x86/kernel/apic/*

2009-02-17T17:17:36+00:00

arch/x86/kernel/ is getting a bit crowded, and the APIC drivers are scattered into various different files. Move them to arch/x86/kernel/apic/*, and also remove the 'gen' prefix from those which had it. Also move APIC related functionality: the IO-APIC driver, the NMI and the IPI code. Signed-off-by: Ingo Molnar

x86, apic: remove genapic.h

2009-02-17T16:52:44+00:00

Impact: cleanup Remove genapic.h and remove all references to it. Signed-off-by: Ingo Molnar

x86: pre init pirq_entries[]

2009-02-16T08:36:58+00:00

Impact: cleanup set default value early - this allows the removal of a number of dynamic initialization codepaths, and an #ifdef. Signed-off-by: Yinghai Lu Cc: Andrew Morton Signed-off-by: Ingo Molnar

x86: make 32bit to call enable_IO_APIC early like 64bit

2009-02-15T12:23:46+00:00

Impact: cleanup So we remove some #ifdefs. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar

x86: unstatic ioapic entry funcs

2009-02-09T22:04:31+00:00

Unstatic ioapic_write_entry and setup_ioapic_entry functions so that the Xen code can do its own ioapic routing setup. Signed-off-by: Jeremy Fitzhardinge

x86: find nr_irqs_gsi with mp_ioapic_routing

2009-02-09T08:22:09+00:00

Impact: find right nr_irqs_gsi on some systems. One test-system has gap between gsi's: [ 0.000000] ACPI: IOAPIC (id[0x04] address[0xfec00000] gsi_base[0]) [ 0.000000] IOAPIC[0]: apic_id 4, version 0, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: IOAPIC (id[0x05] address[0xfeafd000] gsi_base[48]) [ 0.000000] IOAPIC[1]: apic_id 5, version 0, address 0xfeafd000, GSI 48-54 [ 0.000000] ACPI: IOAPIC (id[0x06] address[0xfeafc000] gsi_base[56]) [ 0.000000] IOAPIC[2]: apic_id 6, version 0, address 0xfeafc000, GSI 56-62 ... [ 0.000000] nr_irqs_gsi: 38 So nr_irqs_gsi is not right. some irq for MSI will overwrite with io_apic. need to get that with acpi_probe_gsi when acpi io_apic is used Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar

x86: check_timer cleanup

2009-02-09T08:21:29+00:00

Impact: make check-timer more robust potentially solve boot fragility For edge trigger io-apic routing, we already unmasked the pin via setup_IO_APIC_irq(), so don't unmask it again. Also call local_irq_disable() between timer_irq_works(), because it calls local_irq_enable() inside. Also remove not needed apic version reading for 64-bit Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar

x86: use NR_IRQS_LEGACY to replace 16

2009-02-09T08:21:28+00:00

Impact: cleanup also could kill platform_legacy_irq Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar

x86/irq: optimize nr_irqs

2009-02-09T08:21:27+00:00

Impact: make nr_irqs depend more on cards used in a system depend on nr_irq_gsi more, and have a ratio for MSI. v2: make nr_irqs less than NR_VECTORS * nr_cpu_ids aka if only one cpu, we only can support nr_irqs = NR_VECTORS Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar

Merge branch 'x86/urgent' into x86/apic

2009-02-05T21:30:01+00:00

Conflicts: arch/x86/mach-default/setup.c Semantic merge: arch/x86/kernel/irqinit_32.c Signed-off-by: Ingo Molnar