[PATCH] xfree86: Fix powerpc build with -Werror=int-to-pointer-cast -Werror=pointer-to-int-cast

[Jeremy Huddleston]

On Nov 1, 2011, at 5:48 PM, Daniel Stone wrote:

> Hi,
> 
> On 1 November 2011 22:05, Jeremy Huddleston <jeremyhu at apple.com> wrote:
>> While this does fix the build failure, I'd much rather change memType to be a uintptr_t everywhere, but it was explicitly set to uint64_t for 32bit powerpc by Ian in the commit referenced below.  Ian, can you explain why you set memType to 64bits even though void * is only 32bits?  You referenced ppc32 code running on ppc64, but I don't see why that would be problematic.
> 
> I'm pretty sure this was because 64-bit POWER machines were really
> fond of mapping their PCI address space above the 32-bit range, so if
> you truncated your addresses to 32-bit, you'd lose out.

Really?  Did someone not get the memo that they wanted to continue to support 32bit userland?

I guess we're stuck with that ugly casting patch then...