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Date: Wed, 16 Apr 2008 20:53:59 -0400 From: Jeff Garzik <jgarzik@...ox.com> To: Sergei Shtylyov <sshtylyov@...mvista.com> CC: netdev@...r.kernel.org, linuxppc-dev@...abs.org Subject: Re: [PATCH] natsemi: fix MMIO for PPC 44x platforms Sergei Shtylyov wrote: > The driver stores the PCI resource address into 'unsigned long' variable before > calling ioremap() on it. This warrants a kernel oops when the registers are > accessed on PPC 44x platforms which (being 32-bit) have PCI memory space mapped > beyond 4 GB. > > The arch/ppc/ kernel has a fixup in ioremap() that creates an illusion of the > PCI memory resources are mapped below 4 GB, but arch/powerpc/ code got rid of > this trick, having instead CONFIG_RESOURCES_64BIT enabled. > > Signed-off-by: Sergei Shtylyov <sshtylyov@...mvista.com> > > --- > Reposting the patch with the typecast, log, and summary corrected. > This is the same issue as the one that has been recently addressed by commits > 3c34ac36ac1084e571ef9b6fb1d6a5b10ccc1fd0 (e1000: Fix for 32 bits platforms with > 64 bits resources) and c976816b6e901341ec3c4653147316c15549a1c4 (siimage: fix > kernel oops on PPC 44x). The patch has only been compile tested though... > > drivers/net/natsemi.c | 10 ++++++---- > 1 files changed, 6 insertions(+), 4 deletions(-) applied -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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