kernel/linux.git/arch/powerpc/mm/pgtable_32.c, branch linux-4.4.y

powerpc: Replace mem_init_done with slab_is_available()

2015-04-10T10:02:48+00:00

We have a powerpc specific global called mem_init_done which is "set on boot once kmalloc can be called". But that's not *quite* true. We set it at the bottom of mem_init(), and rely on the fact that mm_init() calls kmem_cache_init() immediately after that, and nothing is running in parallel. So replace it with the generic and 100% correct slab_is_available(). Signed-off-by: Michael Ellerman

powerpc: Fix compile errors with STRICT_MM_TYPECHECKS enabled

2015-04-10T10:02:47+00:00

Signed-off-by: Aneesh Kumar K.V [mpe: Fix the 32-bit code also] Signed-off-by: Michael Ellerman

powerpc/mm: Remove duplicate declaration of setbat()

2015-04-07T07:15:13+00:00

This is already declared in mmu_decl.h, so we don't need a second version in the C file. Signed-off-by: Michael Ellerman

powerpc/32: %pF is only for function pointers

2015-03-23T04:14:48+00:00

Use %pS for actual addresses, otherwise you'll get bad output on arches like ppc64 where %pF expects a function descriptor. Even on other architectures, refrain from setting a bad example that people copy. Signed-off-by: Scott Wood Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Michael Ellerman

powerpc32: Use kmem_cache memory for PGDIR

2015-01-30T03:59:02+00:00

When pages are not 4K, PGDIR table is allocated with kmalloc(). In order to optimise TLB handlers, aligned memory is needed. kmalloc() doesn't provide aligned memory blocks, so lets use a kmem_cache pool instead. Signed-off-by: Christophe Leroy Signed-off-by: Scott Wood

powerpc32: adds handling of _PAGE_RO

2015-01-30T02:11:51+00:00

Some powerpc like the 8xx don't have a RW bit in PTE bits but a RO (Read Only) bit. This patch implements the handling of a _PAGE_RO flag to be used in place of _PAGE_RW Signed-off-by: Christophe Leroy [scottwood@freescale.com: fix whitespace] Signed-off-by: Scott Wood

powerpc: Remove duplicate tlbcam_index declarations

2015-01-30T01:59:03+00:00

They seem to be leftovers from '14cf11a powerpc: Merge enough to start building in arch/powerpc' Signed-off-by: Emil Medve Signed-off-by: Scott Wood

mm/debug-pagealloc: make debug-pagealloc boottime configurable

2014-12-13T20:42:48+00:00

Now, we have prepared to avoid using debug-pagealloc in boottime. So introduce new kernel-parameter to disable debug-pagealloc in boottime, and makes related functions to be disabled in this case. Only non-intuitive part is change of guard page functions. Because guard page is effective only if debug-pagealloc is enabled, turning off according to debug-pagealloc is reasonable thing to do. Signed-off-by: Joonsoo Kim Cc: Mel Gorman Cc: Johannes Weiner Cc: Minchan Kim Cc: Dave Hansen Cc: Michal Nazarewicz Cc: Jungsoo Son Cc: Ingo Molnar Cc: Joonsoo Kim Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

powerpc: Remove bootmem allocator

2014-11-09T22:59:25+00:00

At the moment we transition from the memblock alloctor to the bootmem allocator. Gitting rid of the bootmem allocator removes a bunch of complicated code (most of which I owe the dubious honour of being responsible for writing). Signed-off-by: Anton Blanchard Tested-by: Emil Medve Signed-off-by: Michael Ellerman

powerpc: Remove CONFIG_POWER3

2014-07-28T04:10:24+00:00

Now that we have dropped power3 support we can remove CONFIG_POWER3. The usage in pgtable_32.c was already dead code as CONFIG_POWER3 was not selectable on PPC32. Signed-off-by: Michael Ellerman Signed-off-by: Benjamin Herrenschmidt