linux/include/asm-ppc64, branch v2.6.13

[PATCH] ppc64: Fix issue with gcc 4.0 compiled kernels

2005-08-27T02:37:11Z

I recently had a BUG_ON() go off spuriously on a gcc 4.0 compiled kernel. It turns out gcc-4.0 was removing a sign extension while earlier gcc versions would not. Thinking this to be a compiler bug, I submitted a report: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23422 It turns out we need to cast the input in order to tell gcc to sign extend it. Thanks to Andrew Pinski for his help on this bug. Signed-off-by: Anton Blanchard Cc: Paul Mackerras Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] iSeries build with newer assemblers and compilers

2005-08-17T04:06:25Z

Paulus suggested that we put xLparMap in its own .c file so that we can generate a .s file to be included into head.S. This doesn't get around the problem of having it at a fixed address, but it makes it more palatable. It would be good if this could be included in 2.6.13 as it solves our build problems with various versions of binutils and gcc. In particular, it allows us to build an iSeries kernel on Debian unstable using their biarch compiler. This has been built and booted on iSeries and built for pSeries and g5. Signed-off-by: Stephen Rothwell Signed-off-by: Paul Mackerras Signed-off-by: Linus Torvalds

[PATCH] pci and yenta: pcibios_bus_to_resource

2005-08-05T04:32:46Z

In yenta_socket, we default to using the resource setting of the CardBus bridge. However, this is a PCI-bus-centric view of resources and thus needs to be converted to generic resources first. Therefore, add a call to pcibios_bus_to_resource() call in between. This function is a mere wrapper on x86 and friends, however on some others it already exists, is added in this patch (alpha, arm, ppc, ppc64) or still needs to be provided (parisc -- where is its pcibios_resource_to_bus() ?). Signed-off-by: Dominik Brodowski Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman Signed-off-by: Linus Torvalds

[PATCH] ppc64: fix for kexec boot issue

2005-08-04T20:00:55Z

The kexec boot is not successful on some power machines since all CPUs are getting removed from global interrupt queue (GIQ) before kexec boot. Some systems always expect at least one CPU in GIQ. Hence, this patch will make sure that only secondary CPUs are removed from GIQ. Signed-off-by: Haren Myneni Signed-off-by: Paul Mackerras Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] ppc64: topology API fix

2005-08-02T04:38:01Z

Dont include asm-generic/topology.h unconditionally, we end up overriding all the ppc64 specific functions when NUMA is on. Signed-off-by: Anton Blanchard Acked-by: Paul Mackerras Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] ppc64: inotify syscalls

2005-07-30T17:14:46Z

inotify system call support for PPC64 [ I don't think we need sys32 compatibility versions--and if we do, I failed in life. ] Signed-off-by: Robert Love Acked-by: Paul Mackerras Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] ppc64: remove another fixed address constraint

2005-07-27T23:25:58Z

Presently the LparMap, one of the structures the kernel shares with the legacy iSeries hypervisor has a fixed offset address in head.S. This patch changes this so the LparMap is a normally initialized structure, without fixed address. This allows us to use macros to compute some of the values in the structure, which wasn't previously possible because the assembler always uses signed-% which gets the wrong answers for the computations in question. Unfortunately, a gcc bug means that doing this requires another structure (hvReleaseData) to be initialized in asm instead of C, but on the whole the result is cleaner than before. Signed-off-by: David Gibson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] ppc64: dynamically allocate segment tables

2005-07-27T23:25:58Z

PPC64 machines before Power4 need a segment table page allocated for each CPU. Currently these are allocated statically in a big array in head.S for all CPUs. The segment tables need to be in the first segment (so do_stab_bolted doesn't take a recursive fault on the stab itself), but other than that there are no constraints which require the stabs for the secondary CPUs to be statically allocated. This patch allocates segment tables dynamically during boot, using lmb_alloc() to ensure they are within the first 256M segment. This reduces the kernel image size by 192k... Tested on RS64 iSeries, POWER3 pSeries, and POWER5. Signed-off-by: David Gibson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] Add emergency_restart()

2005-07-26T21:35:41Z

When the kernel is working well and we want to restart cleanly kernel_restart is the function to use. But in many instances the kernel wants to reboot when thing are expected to be working very badly such as from panic or a software watchdog handler. This patch adds the function emergency_restart() so that callers can be clear what semantics they expect when calling restart. emergency_restart() is expected to be callable from interrupt context and possibly reliable in even more trying circumstances. This is an initial generic implementation for all architectures. Signed-off-by: Eric W. Biederman Signed-off-by: Linus Torvalds

[PATCH] ppc64: kill bitfields in ppc64 hash code

2005-07-13T18:25:25Z

This patch removes the use of bitfield types from the ppc64 hash table manipulation code. Signed-off-by: David Gibson Acked-by: Stephen Rothwell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds