Messages in this thread Patch in this message | | | Date | Fri, 28 Mar 2008 14:12:14 -0500 | From | Jack Steiner <> | Subject | [PATCH 7/8] x86_64: Define the macros and tables for blade functions |
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Add UV macros for converting between cpu numbers, blade numbers and node numbers. Note that these are used ONLY within x86_64 UV modules, and are not for general kernel use.
Based on: git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
Signed-off-by: Jack Steiner <steiner@sgi.com>
--- include/asm-x86/uv/uv_hub.h | 74 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+)
Index: linux/include/asm-x86/uv/uv_hub.h =================================================================== --- linux.orig/include/asm-x86/uv/uv_hub.h 2008-03-27 12:47:39.000000000 -0500 +++ linux/include/asm-x86/uv/uv_hub.h 2008-03-27 12:47:45.000000000 -0500 @@ -206,5 +206,79 @@ static inline void uv_write_local_mmr(un *uv_local_mmr_address(offset) = val; } +/* + * Structures and definitions for converting between cpu, node, and blade + * numbers. + */ +struct uv_blade_info { + unsigned short nr_posible_cpus; + unsigned short nr_online_cpus; + unsigned short nasid; +}; +struct uv_blade_info *uv_blade_info; +extern short *uv_node_to_blade; +extern short *uv_cpu_to_blade; +extern short uv_possible_blades; + +/* Blade-local cpu number of current cpu. Numbered 0 .. <# cpus on the blade> */ +static inline int uv_blade_processor_id(void) +{ + return uv_hub_info->blade_processor_id; +} + +/* Blade number of current cpu. Numnbered 0 .. <#blades -1> */ +static inline int uv_numa_blade_id(void) +{ + return uv_hub_info->numa_blade_id; +} + +/* Convert a cpu number to the the UV blade number */ +static inline int uv_cpu_to_blade_id(int cpu) +{ + return uv_cpu_to_blade[cpu]; +} + +/* Convert linux node number to the UV blade number */ +static inline int uv_node_to_blade_id(int nid) +{ + return uv_node_to_blade[nid]; +} + +/* Convert a blade id to the NASID of the blade */ +static inline int uv_blade_to_nasid(int bid) +{ + return uv_blade_info[bid].nasid; +} + +/* Determine the number of possible cpus on a blade */ +static inline int uv_blade_nr_possible_cpus(int bid) +{ + return uv_blade_info[bid].nr_posible_cpus; +} + +/* Determine the number of online cpus on a blade */ +static inline int uv_blade_nr_online_cpus(int bid) +{ + return uv_blade_info[bid].nr_online_cpus; +} + +/* Convert a cpu id to the NASID of the blade containing the cpu */ +static inline int uv_cpu_to_nasid(int cpu) +{ + return uv_blade_info[uv_cpu_to_blade_id(cpu)].nasid; +} + +/* Convert a node number to the NASID of the blade */ +static inline int uv_node_to_nasid(int nid) +{ + return uv_blade_info[uv_node_to_blade_id(nid)].nasid; +} + +/* Maximum possible number of blades */ +static inline int uv_num_possible_blades(void) +{ + return uv_possible_blades; +} + #endif /* __ASM_X86_UV_HUB__ */
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