Commit Graph

2 Commits

Author SHA1 Message Date
Michael Lotz
fb5a1727f4 * Implement interrupt source overrides. We install a relay interrupt handler
at the override entry to trigger the overriden vector so that we don't need
  to configure any additional redirections.
* Also configures the polarity and trigger modes found in the override entry.
* When disabling the legacy PIC, retrieve the enabled interrupts and re-enable
  then in the IO-APIC. This will for example make the ACPI SCI work that is
  installed prior to switching interrupt models. Through the transparent support
  for interrupt source overrides it'll also automatically relay from the old to
  the new vector.

This should make ACPI interrupts work and should support relocating the ISA PIT
from irq 0 to a different global system interrupt (usually 2) so that it can
still work when IO-APICs are in use.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41528 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-05-16 12:57:40 +00:00
Michael Lotz
dc14d97b7f * Move the legacy PIC and the IO-APIC code into their own source file. No
functional change intended.
* Use an appropriately sized sLevelTriggeredInterrupts for each controller type.
  This also fixes an out of bound access for IO-APICs with more than 32 entries
  and also returns the right mode in such cases.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41426 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-05-11 00:53:03 +00:00