freebsd-nq/sys/isa
John Baldwin 6f92bdd0c1 New APIC support code:
- The apic interrupt entry points have been rewritten so that each entry
  point can serve 32 different vectors.  When the entry is executed, it
  uses one of the 32-bit ISR registers to determine which vector in its
  assigned range was triggered.  Thus, the apic code can support 159
  different interrupt vectors with only 5 entry points.
- We now always to disable the local APIC to work around an errata in
  certain PPros and then re-enable it again if we decide to use the APICs
  to route interrupts.
- We no longer map IO APICs or local APICs using special page table
  entries.  Instead, we just use pmap_mapdev().  We also no longer
  export the virtual address of the local APIC as a global symbol to
  the rest of the system, but only in local_apic.c.  To aid this, the
  APIC ID of each CPU is exported as a per-CPU variable.
- Interrupt sources are provided for each intpin on each IO APIC.
  Currently, each source is given a unique interrupt vector meaning that
  PCI interrupts are not shared on most machines with an I/O APIC.
  That mapping for interrupt sources to interrupt vectors is up to the
  APIC enumerator driver however.
- We no longer probe to see if we need to use mixed mode to route IRQ 0,
  instead we always use mixed mode to route IRQ 0 for now.  This can be
  disabled via the 'NO_MIXED_MODE' kernel option.
- The npx(4) driver now always probes to see if a built-in FPU is present
  since this test can now be performed with the new APIC code.  However,
  an SMP kernel will panic if there is more than one CPU and a built-in
  FPU is not found.
- PCI interrupts are now properly routed when using APICs to route
  interrupts, so remove the hack to psuedo-route interrupts when the
  intpin register was read.
- The apic.h header was moved to apicreg.h and a new apicvar.h header
  that declares the APIs used by the new APIC code was added.
2003-11-03 21:53:38 +00:00
..
atkbd_isa.c Use __FBSDID(). 2003-06-11 00:34:37 +00:00
atkbdc_isa.c - Use the new resource_disabled() helper function to see if devices are 2003-07-02 16:09:02 +00:00
atrtc.c New APIC support code: 2003-11-03 21:53:38 +00:00
fd.c Look at the equipment list for amd64 as well as i386 for autodetecting 2003-10-23 05:52:52 +00:00
fdreg.h Increase the PIO timeout to approximately the value it used to have 2002-05-12 15:24:21 +00:00
isa_common.c - Make the isab devclass global to allow for multiple ISA bridge drivers. 2003-07-08 18:56:58 +00:00
isa_common.h No need to declare M_ISADEV here. 2002-10-16 10:38:48 +00:00
isa_if.m
isahint.c - Use the new resource_disabled() helper function to see if devices are 2003-07-02 16:09:02 +00:00
isareg.h Clean up some antique stuff. We do not support Weitek FPUs etc, and never 2003-09-05 14:54:26 +00:00
isavar.h - Make the isab devclass global to allow for multiple ISA bridge drivers. 2003-07-08 18:56:58 +00:00
orm.c Use __FBSDID(). 2003-06-11 00:34:37 +00:00
pnp.c Use __FBSDID(). 2003-06-11 00:34:37 +00:00
pnpparse.c Use __FBSDID(). 2003-06-11 00:34:37 +00:00
pnpreg.h GC various bits and pieces of USERCONFIG from all over the place. 2002-04-09 11:18:46 +00:00
pnpvar.h
psm.c Add support for the A4 Tech RFSW-35 mouse wheel. Probe is similar to 2003-07-12 18:36:04 +00:00
rtc.h
syscons_isa.c Fix a panic that occurs when resuming. For some reason, sc->cur_scp is 2003-10-29 20:48:13 +00:00
vga_isa.c Change fb_attach() and fb_detach() to take a integer unit number rather 2003-09-26 10:41:44 +00:00