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Remove legacy comment regarding the instability of awacs(4)

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Enable awacs(4), skipping MAMBO config as it is for an emulator.

From <macallan>
"that warning about the awacs driver making some
machines lock up can probably go. It's ancient and I've never seen it
actually happen, I have several oldish macs with different awacs
variants and it's enabled in all my configs. In fact it predates my
macppc interrupt cleanup ( I think I did that in 2005 or so ) and I
strongly suspect that fixed the problem.
( the ancient code didn't properly distinguish between edge and level
triggered interrupts on grand central / heathrow type hardware, IIRC it
always just checked the level register(s) which resulted in edge
triggered interrupts being missed or misdetected. Most of the mac-io
goop from that time uses edge triggered interrupts, which includes
awacs )

If this actually happens to anyone I'd like to know about it"
This commit is contained in:
sevan 2018-02-24 18:58:00 +00:00
parent 46f5472cb5
commit bcdb0608f9
3 changed files with 6 additions and 18 deletions
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10
sys/arch/macppc/conf/GENERIC
View File

@ -1,4 +1,4 @@
# $NetBSD: GENERIC,v 1.342 2018/02/23 03:04:01 sevan Exp $
# $NetBSD: GENERIC,v 1.343 2018/02/24 18:58:00 sevan Exp $
#
# GENERIC machine description file
#
@ -22,7 +22,7 @@ include "arch/macppc/conf/std.macppc"
options INCLUDE_CONFIG_FILE # embed config file in kernel binary
#ident "GENERIC-$Revision: 1.342 $"
#ident "GENERIC-$Revision: 1.343 $"
maxusers 32
@ -389,11 +389,7 @@ zsc* at obio?
zstty* at zsc? channel ?
mediabay* at obio?
wdc* at mediabay? flags 0
# awacs is disabled because on most systems (7300 - 9600 PowerMacs,
# many kinds of G4s), very heavy load can cause the machine to lock
# up. ONLY enable this if your machine is never under heavy load, or
# you'd rather have audio than worry about occasional lockups.
#awacs* at obio? # Apple audio device
awacs* at obio? # Apple audio device
ki2c* at obio? # Keywest I2C
ki2c* at uni_n? # Keywest I2C
iic* at ki2c?

8
sys/arch/macppc/conf/GENERIC_601
View File

@ -1,4 +1,4 @@
# $NetBSD: GENERIC_601,v 1.18 2018/02/23 03:04:01 sevan Exp $
# $NetBSD: GENERIC_601,v 1.19 2018/02/24 18:58:00 sevan Exp $
#
# GENERIC machine description file
#
@ -28,7 +28,7 @@ include "arch/macppc/conf/std.macppc.601"
options INCLUDE_CONFIG_FILE # embed config file in kernel binary
ident "GENERIC-$Revision: 1.18 $"
ident "GENERIC-$Revision: 1.19 $"
maxusers 32
@ -264,10 +264,6 @@ iic0 at cuda0 # CUDA's IIC bus
zsc* at obio?
zstty* at zsc? channel ?
# awacs is disabled because on most systems (7300 - 9600 PowerMacs,
# many kinds of G4s), very heavy load can cause the machine to lock
# up. ONLY enable this if your machine is never under heavy load, or
# you'd rather have audio than worry about occasional lockups.
awacs* at obio? # Apple audio device
# Cryptographic Devices

6
sys/arch/macppc/conf/MAMBO
View File

@ -6,7 +6,7 @@ include "arch/macppc/conf/std.macppc.g5"
options INCLUDE_CONFIG_FILE # embed config file in kernel binary
#ident "GENERIC-$Revision: 1.29 $"
#ident "GENERIC-$Revision: 1.30 $"
maxusers 32
@ -138,10 +138,6 @@ macofcons0 at pci? dev ? function ? # OpenFirmware console (for debugging)
# PCI serial interfaces
nvram* at obio? # nvram
# awacs is disabled because on most systems (7300 - 9600 PowerMacs,
# many kinds of G4s), very heavy load can cause the machine to lock
# up. ONLY enable this if your machine is never under heavy load, or
# you'd rather have audio than worry about occasional lockups.
#awacs* at obio? # Apple audio device
#ki2c* at obio? # Keywest I2C
wi* at obio? # AirMac