kernel/git/stable/linux.git/include/asm-x86/numa_64.h, branch master

x86, um: ... and asm-x86 move

2008-10-23T05:55:20+00:00

Signed-off-by: Al Viro Signed-off-by: H. Peter Anvin

x86: consolidate header guards

2008-07-22T19:31:34+00:00

This patch is the result of an automatic script that consolidates the format of all the headers in include/asm-x86/. The format: 1. No leading underscore. Names with leading underscores are reserved. 2. Pathname components are separated by two underscores. So we can distinguish between mm_types.h and mm/types.h. 3. Everything except letters and numbers are turned into single underscores. Signed-off-by: Vegard Nossum

x86: introduce initmem_init for 64 bit

2008-07-08T10:50:14+00:00

Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar

x86: cleanup early per cpu variables/accesses v4

2008-07-08T09:31:20+00:00

* Introduce a new PER_CPU macro called "EARLY_PER_CPU". This is used by some per_cpu variables that are initialized and accessed before there are per_cpu areas allocated. ["Early" in respect to per_cpu variables is "earlier than the per_cpu areas have been setup".] This patchset adds these new macros: DEFINE_EARLY_PER_CPU(_type, _name, _initvalue) EXPORT_EARLY_PER_CPU_SYMBOL(_name) DECLARE_EARLY_PER_CPU(_type, _name) early_per_cpu_ptr(_name) early_per_cpu_map(_name, _idx) early_per_cpu(_name, _cpu) The DEFINE macro defines the per_cpu variable as well as the early map and pointer. It also initializes the per_cpu variable and map elements to "_initvalue". The early_* macros provide access to the initial map (usually setup during system init) and the early pointer. This pointer is initialized to point to the early map but is then NULL'ed when the actual per_cpu areas are setup. After that the per_cpu variable is the correct access to the variable. The early_per_cpu() macro is not very efficient but does show how to access the variable if you have a function that can be called both "early" and "late". It tests the early ptr to be NULL, and if not then it's still valid. Otherwise, the per_cpu variable is used instead: #define early_per_cpu(_name, _cpu) \ (early_per_cpu_ptr(_name) ? \ early_per_cpu_ptr(_name)[_cpu] : \ per_cpu(_name, _cpu)) A better method is to actually check the pointer manually. In the case below, numa_set_node can be called both "early" and "late": void __cpuinit numa_set_node(int cpu, int node) { int *cpu_to_node_map = early_per_cpu_ptr(x86_cpu_to_node_map); if (cpu_to_node_map) cpu_to_node_map[cpu] = node; else per_cpu(x86_cpu_to_node_map, cpu) = node; } * Add a flag "arch_provides_topology_pointers" that indicates pointers to topology cpumask_t maps are available. Otherwise, use the function returning the cpumask_t value. This is useful if cpumask_t set size is very large to avoid copying data on to/off of the stack. * The coverage of CONFIG_DEBUG_PER_CPU_MAPS has been increased while the non-debug case has been optimized a bit. * Remove an unreferenced compiler warning in drivers/base/topology.c * Clean up #ifdef in setup.c For inclusion into sched-devel/latest tree. Based on: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git + sched-devel/latest .../mingo/linux-2.6-sched-devel.git Signed-off-by: Mike Travis Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner

srat, x86: add support for nodes spanning other nodes

2008-04-19T17:19:55+00:00

For example, If the physical address layout on a two node system with 8 GB memory is something like: node 0: 0-2GB, 4-6GB node 1: 2-4GB, 6-8GB Current kernels fail to boot/detect this NUMA topology. ACPI SRAT tables can expose such a topology which needs to be supported. Signed-off-by: Suresh Siddha Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner

include/asm-x86/numa_64.h: checkpatch cleanups - formatting only

2008-04-17T15:41:25+00:00

Signed-off-by: Joe Perches Signed-off-by: Ingo Molnar

x86: change size of node ids from u8 to s16

2008-01-30T12:33:25+00:00

Change the size of node ids for X86_64 from u8 to s16 to accomodate more than 32k nodes and allow for NUMA_NO_NODE (-1) to be sign extended to int. Cc: David Rientjes Cc: Yinghai Lu Cc: Eric Dumazet Signed-off-by: Mike Travis Reviewed-by: Christoph Lameter Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner

x86: change NR_CPUS arrays in numa_64

2008-01-30T12:33:11+00:00

Change the following static arrays sized by NR_CPUS to per_cpu data variables: char cpu_to_node_map[NR_CPUS]; Signed-off-by: Mike Travis Reviewed-by: Christoph Lameter Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner

x86: change size of node ids from u8 to u16

2008-01-30T12:33:11+00:00

Change the size of node ids from 8 bits to 16 bits to accomodate more than 256 nodes. Signed-off-by: Mike Travis Reviewed-by: Christoph Lameter Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner

x86: clean up bitops-related warnings

2008-01-30T12:30:55+00:00

Add casts to appropriate places to silence spurious bitops warnings. Signed-off-by: Jeremy Fitzhardinge Cc: Andi Kleen Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner