aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc/include/asm/cputable.h
AgeCommit message (Collapse)Author
2009-03-24Merge commit 'origin/master' into nextBenjamin Herrenschmidt
2009-03-17powerpc/5200: Enable CPU_FTR_NEED_COHERENT for MPC52xxPiotr Ziecik
BestComm, a DMA engine in MPC52xx SoC, requires snooping when CPU caches are enabled to work properly. Adding CPU_FTR_NEED_COHERENT fixes NFS problems on MPC52xx machines introduced by 'powerpc/mm: Fix handling of _PAGE_COHERENT in BAT setup code' (sha1: 4c456a67f501b8b15542c7c21c28812bf88f484b). Signed-off-by: Piotr Ziecik <kosmo@semihalf.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2009-02-23powerpc: Add support for using doorbells for SMP IPIKumar Gala
The e500mc supports the new msgsnd/doorbell mechanisms that were added in the Power ISA 2.05 architecture. We use the normal level doorbell for doing SMP IPIs at this point. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-12-21powerpc/mm: Introduce MMU featuresBenjamin Herrenschmidt
We're soon running out of CPU features and I need to add some new ones for various MMU related bits, so this patch separates the MMU features from the CPU features. I moved over the 32-bit MMU related ones, added base features for MMU type families, but didn't move over any 64-bit only feature yet. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-12-21powerpc/4xx: Extended DCR support v2Benjamin Herrenschmidt
This adds supports to the "extended" DCR addressing via the indirect mfdcrx/mtdcrx instructions supported by some 4xx cores (440H6 and later). I enabled the feature for now only on AMCC 460 chips. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-12-15powerpc: Fix bogus cache flushing on all 40x and BookE processors v2Benjamin Herrenschmidt
We were missing the CPU_FTR_NOEXECUTE bit in our cputable for all these processors. The result is that update_mmu_cache() would flush the cache for all pages mapped to userspace which is totally unnecessary on those processors since we already handle flushing on execute in the page fault path. This should provide a nice speed up ;-) Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-11-05powerpc: Add new CPU feature: CPU_FTR_UNALIGNED_LD_STDMark Nelson
Add a new CPU feature bit, CPU_FTR_UNALIGNED_LD_STD, to be added to the 64bit powerpc chips that can do unaligned load double and store double without any performance hit. This is added to Power6 and Cell and will be used in the next commit to disable the code that gets the destination address aligned on those CPUs where doing that doesn't improve performance. Signed-off-by: Mark Nelson <markn@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-09-15powerpc: Add new CPU feature: CPU_FTR_CP_USE_DCBTZMark Nelson
Add a new CPU feature bit, CPU_FTR_CP_USE_DCBTZ, to be added to the 64bit powerpc chips that benefit from having dcbt and dcbz instructions used in their memory copy routines. This will be used in a subsequent patch that updates copy_4K_page(). The new bit is added to Cell, PPC970 and Power4 because they show better performance with the new copy_4K_page() when dcbt and dcbz instructions are used. Signed-off-by: Mark Nelson <markn@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-20powerpc: Expose PMCs & cache topology in sysfs on 32-bitBenjamin Herrenschmidt
The file arch/powerpc/kernel/sysfs.c is currently only compiled for 64-bit kernels. It contain code to register CPU sysdevs in sysfs and add various properties such as cache topology and raw access by root to performance monitor counters (PMCs). A lot of that can be re-used as is on 32-bits. This makes the file be built for both, with appropriate ifdef'ing for the few bits that are really 64-bit specific, and adds some support for the raw PMCs for 75x and 74xx processors. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-04powerpc: Move include files to arch/powerpc/include/asmStephen Rothwell
from include/asm-powerpc. This is the result of a mkdir arch/powerpc/include/asm git mv include/asm-powerpc/* arch/powerpc/include/asm Followed by a few documentation/comment fixups and a couple of places where <asm-powepc/...> was being used explicitly. Of the latter only one was outside the arch code and it is a driver only built for powerpc. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>