History log of /haiku-fatelf/src/system/kernel/arch/x86/msi.cpp
Revision Date Author Comments
# fa6327c9 09-Aug-2012 Alex Smith <alex@alex-smith.me.uk>

Compile remaining x86 bits for x86_64.

The IOAPIC and IRQ routing code now gets compiled for x86_64, though
they won't be used yet as there is no ACPI support currently.


# 2865db34 20-Jul-2012 Alex Smith <alex@alex-smith.me.uk>

Compile msi.cpp for x86_64.

Needed to link the PCI module, not enabling it yet though, I'm not
sure whether everything needed for it is in place yet.


# 20f094cc 12-Oct-2011 Michael Lotz <mmlr@mlotz.ch>

Fix and add copyright year spotted by Urias.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42833 a95241bf-73f2-0310-859d-f6bbb57e9c96


# fc2d7cb0 12-Oct-2011 Michael Lotz <mmlr@mlotz.ch>

* Introduce {reserve|allocate|free}_io_interrupt_vectors() that can generically
be used to mark certain io interrupt vectors as reserved and to allocate from
the still free ones. It is a kernel private API for now though.
* Make the MSI code use that functionality instead of implementing its own which
slims it down considerably and also removes quite a bit of hardcoded knowledge
about the interrupt layout that didn't really belong there.
* Mark the various in-use interrupts as reserved from the components that
actually know about them (PIC, IO-APIC, SMP, APIC timer and interrupt setup).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42832 a95241bf-73f2-0310-859d-f6bbb57e9c96


# a56cbb2a 11-May-2011 Michael Lotz <mmlr@mlotz.ch>

* When initializing MSI support, don't assume a single 24 entry IO-APIC. Instead
mark the ISA interrupts as unusable and then use ioapic_is_interrupt_available
to determine if that vector is possibly taken by an IO-APIC. If IO-APICs are
not used, this will simply always return false, leaving all vectors free for
MSI use.
* The msi_init() now has to be done after a potential IO-APIC init, so it is now
done after ioapic_init() instead of inside apic_init().
* Add apic_disable_local_ints() to clear the local ints on the local APIC once
we are in APIC mode (i.e. the IO-APIC is set up and we don't need the external
routing anymore).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41445 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 33fbe254 13-Apr-2010 Michael Lotz <mmlr@mlotz.ch>

* Add code to allocate and free interrupt vectors for message signaled
interrupts (MSI).
* Add the remaining IDT entries and redirection functions in the interrupt code.
* Make the PIC end_of_interrupt() return a result to indicate whether the vector
was handled by this PIC. If it isn't we now issue a apic_end_of_interrupt()
in the assumption of apic local interrupt, MSI or IPI. This also removes
the need for the gUsingIOAPIC global and doing manual apic_end_of_interrupt()
calls in the SMP and timer code.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36221 a95241bf-73f2-0310-859d-f6bbb57e9c96


# fa6327c9f48f89f3be1f229d5aca749241b55bf0 09-Aug-2012 Alex Smith <alex@alex-smith.me.uk>

Compile remaining x86 bits for x86_64.

The IOAPIC and IRQ routing code now gets compiled for x86_64, though
they won't be used yet as there is no ACPI support currently.


# 2865db34c861fc7e72d1076885e671b5b2d0e7dc 20-Jul-2012 Alex Smith <alex@alex-smith.me.uk>

Compile msi.cpp for x86_64.

Needed to link the PCI module, not enabling it yet though, I'm not
sure whether everything needed for it is in place yet.


# 20f094cc38adc63ae5b19b07bb90863734012f02 12-Oct-2011 Michael Lotz <mmlr@mlotz.ch>

Fix and add copyright year spotted by Urias.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42833 a95241bf-73f2-0310-859d-f6bbb57e9c96


# fc2d7cb04d7ad78424169fd0df4d236de2bb17d1 12-Oct-2011 Michael Lotz <mmlr@mlotz.ch>

* Introduce {reserve|allocate|free}_io_interrupt_vectors() that can generically
be used to mark certain io interrupt vectors as reserved and to allocate from
the still free ones. It is a kernel private API for now though.
* Make the MSI code use that functionality instead of implementing its own which
slims it down considerably and also removes quite a bit of hardcoded knowledge
about the interrupt layout that didn't really belong there.
* Mark the various in-use interrupts as reserved from the components that
actually know about them (PIC, IO-APIC, SMP, APIC timer and interrupt setup).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42832 a95241bf-73f2-0310-859d-f6bbb57e9c96


# a56cbb2afbf4dbfb4a07dfdd95f10637a195a053 11-May-2011 Michael Lotz <mmlr@mlotz.ch>

* When initializing MSI support, don't assume a single 24 entry IO-APIC. Instead
mark the ISA interrupts as unusable and then use ioapic_is_interrupt_available
to determine if that vector is possibly taken by an IO-APIC. If IO-APICs are
not used, this will simply always return false, leaving all vectors free for
MSI use.
* The msi_init() now has to be done after a potential IO-APIC init, so it is now
done after ioapic_init() instead of inside apic_init().
* Add apic_disable_local_ints() to clear the local ints on the local APIC once
we are in APIC mode (i.e. the IO-APIC is set up and we don't need the external
routing anymore).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41445 a95241bf-73f2-0310-859d-f6bbb57e9c96


# 33fbe254964dff2c8b8a3e1522bbefff14d51ea1 13-Apr-2010 Michael Lotz <mmlr@mlotz.ch>

* Add code to allocate and free interrupt vectors for message signaled
interrupts (MSI).
* Add the remaining IDT entries and redirection functions in the interrupt code.
* Make the PIC end_of_interrupt() return a result to indicate whether the vector
was handled by this PIC. If it isn't we now issue a apic_end_of_interrupt()
in the assumption of apic local interrupt, MSI or IPI. This also removes
the need for the gUsingIOAPIC global and doing manual apic_end_of_interrupt()
calls in the SMP and timer code.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36221 a95241bf-73f2-0310-859d-f6bbb57e9c96