lwn.git/arch/x86/kernel/apic/io_apic.c, branch v3.9.3

x86, io_apic: Introduce eoi_ioapic_pin call-back

2013-01-28T11:51:52+00:00

This callback replaces the old __eoi_ioapic_pin function which needs a special path for interrupt remapping. Signed-off-by: Joerg Roedel Acked-by: Sebastian Andrzej Siewior Reviewed-by: Konrad Rzeszutek Wilk

x86, msi: Introduce x86_msi.compose_msi_msg call-back

2013-01-28T11:42:48+00:00

This call-back points to the right function for initializing the msi_msg structure. The old code for msi_msg generation was split up into the irq-remapped and the default case. The irq-remapped case just calls into the specific Intel or AMD implementation when the device is behind an IOMMU. Otherwise the default function is called. Signed-off-by: Joerg Roedel Acked-by: Sebastian Andrzej Siewior Reviewed-by: Konrad Rzeszutek Wilk

x86, irq: Introduce setup_remapped_irq()

2013-01-28T11:17:28+00:00

This function does irq-remapping specific interrupt setup like modifying the chip defaults. Signed-off-by: Joerg Roedel Acked-by: Sebastian Andrzej Siewior Reviewed-by: Konrad Rzeszutek Wilk

x86, irq: Move irq_remapped() check into free_remapped_irq

2013-01-28T11:17:27+00:00

The function is called unconditionally now in IO-APIC code removing another irq_remapped() check from x86 core code. Signed-off-by: Joerg Roedel Acked-by: Sebastian Andrzej Siewior Reviewed-by: Konrad Rzeszutek Wilk

x86, io-apic: Remove !irq_remapped() check from __target_IO_APIC_irq()

2013-01-28T11:17:27+00:00

This function is only called from default_ioapic_set_affinity() which is only used when interrupt remapping is disabled since the introduction of the set_affinity function pointer. So the check will always evaluate as true and can be removed. Signed-off-by: Joerg Roedel Acked-by: Sebastian Andrzej Siewior Reviewed-by: Konrad Rzeszutek Wilk

x86, io-apic: Move CONFIG_IRQ_REMAP code out of x86 core

2013-01-28T11:17:27+00:00

Move all the code to either to the header file asm/irq_remapping.h or to drivers/iommu/. Signed-off-by: Joerg Roedel Acked-by: Sebastian Andrzej Siewior Reviewed-by: Konrad Rzeszutek Wilk

x86, io_apic: Remove irq_remapping_enabled check in setup_timer_IRQ0_pin

2013-01-28T11:17:26+00:00

This function is only called when irq-remapping is disabled. Signed-off-by: Joerg Roedel Acked-by: Sebastian Andrzej Siewior Reviewed-by: Konrad Rzeszutek Wilk

x86, io_apic: Move irq_remapping_enabled checks out of check_timer()

2013-01-28T11:17:26+00:00

Move these checks to IRQ remapping code by introducing the panic_on_irq_remap() function. Signed-off-by: Joerg Roedel Acked-by: Sebastian Andrzej Siewior Reviewed-by: Konrad Rzeszutek Wilk

x86, io_apic: Convert setup_ioapic_entry to function pointer

2013-01-28T11:17:26+00:00

This pointer is changed to a different function when IRQ remapping is enabled. Signed-off-by: Joerg Roedel Acked-by: Sebastian Andrzej Siewior Reviewed-by: Konrad Rzeszutek Wilk

x86, io_apic: Introduce set_affinity function pointer

2013-01-28T11:17:26+00:00

With interrupt remapping a special function is used to change the affinity of an IO-APIC interrupt. Abstract this with a function pointer. Signed-off-by: Joerg Roedel Acked-by: Sebastian Andrzej Siewior Reviewed-by: Konrad Rzeszutek Wilk