Commit Graph

23 Commits

Author SHA1 Message Date
Bruce Evans
3157adc8af Removed now-unused #includes of <machine/cpu.h>. They were for bootverbose
being declared in the wrong place.
1996-04-07 17:32:42 +00:00
Bruce Evans
a680ab7537 Count PCI irqs in up to 4 ISAish counters named `pci irqnn' instead of
in the clk0 counter.

Reviewed by:	s
1996-03-29 15:01:51 +00:00
Bruce Evans
6ea3e9d839 Completed function declarations and/or added prototypes and/or added
#includes to get prototypes.

pci now uses a different interrupt handler type for interrupts that it
dispatches and the isa interrupt handler type for the interrupts that
it handles.
1995-12-16 00:27:59 +00:00
Poul-Henning Kamp
6f4e0beb7e Staticize and cleanup. 1995-12-10 13:40:44 +00:00
Stefan Eßer
2e80ea0536 Make CONF1_ENABLE_MSK1 even less restriktive: Ignore slot ID ... 1995-10-17 23:30:11 +00:00
Stefan Eßer
0e2f699b9e At least the ASUS Triton motherboards don't disable the PCI bus configuration
accesses after the BIOS bus scan. The previous revision made the assumption,
that every PCI motherboard did ...

Change the test on the initial value of the CONF1_ADDR_PORT register in a way
that makes the probe succeed on triton based motherboards, without breaking
the EISA motherboard that has some non-PCI register at the same address.
1995-10-17 15:23:14 +00:00
Stefan Eßer
287911bd50 Go back to separate tests for configuration mechanism 1 and mechanism 2.
Require the state of the configuration enable bits to be OFF assuming
that the BIOS left them that way, as it should anyway to avoid bad things
to happen.

The tests themselves are copied from the previous release, with the
exception of CONF1_ENABLE_MSK1 having the LSB set. This bit should be
read back as '0', since only DWORD addresses are legal.
1995-10-15 23:43:08 +00:00
Stefan Eßer
c7483249e7 Fix bad typo: CONF1_ENABLE_RES1 was written CONF1_ENABLE_CHK1 ... 1995-10-09 21:56:24 +00:00
Stefan Eßer
77b573149a New approach to the PCI bus configuration mechanism probe problem:
- try to make sure there is any kind of PCI device
- if there is anything at port 0x0cf8, then check for mech. 1 or 2
1995-09-22 19:10:54 +00:00
Stefan Eßer
a3adc4f8c5 Revert most changes of previous commit.
Changes relative to 1.12:
- Put extra instruction between outl()/inl() sequence to prevent the
  old value being read back because of the bus capacitance.
- Additional check for existence of register at CONF2_ENABLE_PORT.
1995-09-18 21:48:39 +00:00
Stefan Eßer
2d14418625 Another try to determine the PCI bus configuration mode (and whether
there is a PCI bus at all) ...

- Do not expect the chip sets to follow even very clearly expressed
  requirements of the PCI 2.0 spec.
- Do not read back the value just written to an I/O port without making
  sure that some other data have crossed the bus in between ...
1995-09-15 21:43:45 +00:00
Stefan Eßer
d7ea35fc88 Improved verification of configuration space accesses working:
Scan for devices instead of assuming that device 0 is present on bus 0
of every PCI motherboard.
1995-09-14 20:27:31 +00:00
Stefan Eßer
cda6791190 Make the PCI host bridge probe code more robust when dealing with chip sets
that use configuration mode 1, but still violate the PCI 2.0 specs ...
(Required for the Compaq Proliant, for example.)
1995-09-13 17:03:47 +00:00
Stefan Eßer
d2a2d5ec41 The PCI config mechanism 1 test failed for the Intel Aries.
Make it less strict ...

Submitted by:	NIIMI Satoshi <sa2c@and.or.jp>
1995-06-30 16:11:42 +00:00
Stefan Eßer
0847c06d2e PCI configuration mechanism now determined by a method, that doesn't
fail on new hardware (Compaq Prolinea and Compaq Prosignea), and that
doesn't erroneously identify old mech. 2 chip sets as using mech. 1.
(See section 3.6.4.1.1 of the PCI bus specs rev. 2.0)
1995-06-28 15:54:57 +00:00
Stefan Eßer
0f29bf015c Correct pcibus_setup() to return as soon as one test succeeds. 1995-03-22 21:35:39 +00:00
Stefan Eßer
9c6f3c132b Delete PCI PCI bridge simulator code ...
Submitted by:	Wolfgang Stanglmeier <wolf@kintaro.cologne.de>
1995-03-22 19:51:59 +00:00
Stefan Eßer
33865a313c Remove spurious declaration of printf().
Submitted by:	Michael Reifenberger <root@rz-wb.fh-sw.de>
1995-03-22 10:52:05 +00:00
Stefan Eßer
5b3f532eb1 New ISA specific PCI code.
Supports shared PCI interrupts.

Submitted by:	Wolfgang Stanglmeier <wolf@kintaro.cologne.de>
1995-03-21 23:06:07 +00:00
Bruce Evans
550f8550ec Replace all remaining instances of i386/include' by machine' and fix
nearby #include inconsistencies.
1995-02-26 05:14:53 +00:00
Stefan Eßer
781d9d4623 Keep PCI_CONF_MODE in a safe place for later reference, if #defined.
Reviewed by:	se
Submitted by:	seb@erix.ericsson.se (Sebastian Strollo)
1995-02-25 17:51:18 +00:00
Stefan Eßer
6f22585dd4 Initialisation of interrupt masks changed.
Reviewed by:	se
Submitted by:	wolf (Wolfgang Stanglmeier)
1995-02-09 20:16:19 +00:00
Stefan Eßer
ac19f91802 Reviewed by: se
Submitted by:	wolf (Wolfgang Stanglmeier)
New ISA dependend file for PCI bus support.
Replaces sys/i386/pci/pcibios.c.
1995-02-01 23:06:58 +00:00