changeset 272:14663048bf47

This patch is already part of 2.6.24.
author Rob Landley <rob@landley.net>
date Tue, 29 Jan 2008 01:32:43 -0600
parents c61e7e0ef234
children 8fbf0d201479
files sources/patches/linux-2.6.23-fixppcnet.patch
diffstat 1 files changed, 0 insertions(+), 75 deletions(-) [+]
line wrap: on
line diff
--- a/sources/patches/linux-2.6.23-fixppcnet.patch	Tue Jan 29 00:47:19 2008 -0600
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,75 +0,0 @@
-What this patch actually fixes is the interrupt handling in the ISA controller.
-Since both IDE and NE2K go through ISA on Prep...
-
-Date: Fri, 19 Oct 2007 21:39:25 +0200
-From: Aurelien Jarno <aurelien@aurel32.net>
-To: Jocelyn Mayer <l_indien@magic.fr>
-Subject: Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !
-Message-ID: <20071019193925.GA30604@hall.aurel32.net>
-
-On Fri, Oct 19, 2007 at 07:39:47PM +0200, Jocelyn Mayer wrote:
-> > The small patch below fixes the IDE problem, but not the NE2000 ISA one.
-> > Please apply.
-> 
-> Interesting, thanks. I'll test this and apply or check for more fixes if
-> needed... I'll also try to check what's happening with the NE2000. Could
-> it be the ne2000_irq table in ppc_prep.c would not be correct ? It may
-> also be usefull to be able to use PCI network devices, if the target
-> runs properly, isn't it ?
-
-Well the problem is actually in the kernel, MIPS got the exact same
-problem a few times ago. The same fix apply for PowerPC:
-
-Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
-
-diff --git a/arch/powerpc/sysdev/i8259.c b/arch/powerpc/sysdev/i8259.c
-index ad87adc..9134b2e 100644
---- a/arch/powerpc/sysdev/i8259.c
-+++ b/arch/powerpc/sysdev/i8259.c
-@@ -138,6 +138,7 @@ static void i8259_unmask_irq(unsigned int irq_nr)
- static struct irq_chip i8259_pic = {
- 	.typename	= " i8259    ",
- 	.mask		= i8259_mask_irq,
-+	.disable	= i8259_mask_irq,
- 	.unmask		= i8259_unmask_irq,
- 	.mask_ack	= i8259_mask_and_ack_irq,
- };
-
-
-I will submit it later this week-end.
-
-
-> If the proposed ROM image is best suitable to make PreP target run (and
-> as I don't spend a lot of time hacking OHW those days), it may also be
-> interesting to add a ppc_prep_rom.bin to the repository... In fact, it
-> was maybe not a good idea to try to use the same BIOS image on all
-> PowerPC targets...
-
-I would say that the main avantage of this proposed ROM is that it is
-plainly functional with a recent kernel. I think that it is something
-really important, as it will bring more users who will improve qemu ppc
-by reporting bugs or even submitting patches. 
-
-And if a better ROM image (e.g. OpenBIOS) that matches real hardware
-comes later it would be possible to change that again.
-
-
-I have used QEMU CVS with a Debian Sid image. It basically works, I am
-even able to login via SSH, but I have noticed two problems:
-
-- Some process hang, stay into "D" state and become unkillable. It seems
-  it can happen to all processes, but it is always reproducible with
-  uptime or top. I still don't know if it is a problem of the kernel or
-  if it comes from the emulation.
-- The target CPU never gets into idle loop, so the host CPU is always
-  used at 100%
-
--- 
-  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
- : :' :  Debian developer           | Electrical Engineer
- `. `'   aurel32@debian.org         | aurelien@aurel32.net
-   `-    people.debian.org/~aurel32 | www.aurel32.net
-
-
-
-