From e927ecb05e1ce4bbb1e10f57008c94994e2160f5 Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Mon, 25 Apr 2005 13:25:06 -0700 Subject: [IA64] multi-core/multi-thread identification Version 3 - rediffed to apply on top of Ashok's hotplug cpu patch. /proc/cpuinfo output in step with x86. This is an updated MC/MT identification patch based on the previous discussions on list. Add the Multi-core and Multi-threading detection for IPF. - Add new core and threading related fields in /proc/cpuinfo. Physical id Core id Thread id Siblings - setup the cpu_core_map and cpu_sibling_map appropriately - Handles Hot plug CPU Signed-off-by: Suresh Siddha Signed-off-by: Gordon Jin Signed-off-by: Rohit Seth Signed-off-by: Tony Luck --- include/asm-ia64/sal.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/asm-ia64/sal.h') diff --git a/include/asm-ia64/sal.h b/include/asm-ia64/sal.h index 240676f7539..29df88bdd2b 100644 --- a/include/asm-ia64/sal.h +++ b/include/asm-ia64/sal.h @@ -91,6 +91,7 @@ extern spinlock_t sal_lock; #define SAL_PCI_CONFIG_READ 0x01000010 #define SAL_PCI_CONFIG_WRITE 0x01000011 #define SAL_FREQ_BASE 0x01000012 +#define SAL_PHYSICAL_ID_INFO 0x01000013 #define SAL_UPDATE_PAL 0x01000020 @@ -815,6 +816,17 @@ ia64_sal_update_pal (u64 param_buf, u64 scratch_buf, u64 scratch_buf_size, return isrv.status; } +/* Get physical processor die mapping in the platform. */ +static inline s64 +ia64_sal_physical_id_info(u16 *splid) +{ + struct ia64_sal_retval isrv; + SAL_CALL(isrv, SAL_PHYSICAL_ID_INFO, 0, 0, 0, 0, 0, 0, 0); + if (splid) + *splid = isrv.v0; + return isrv.status; +} + extern unsigned long sal_platform_features; extern int (*salinfo_platform_oemdata)(const u8 *, u8 **, u64 *); -- cgit v1.2.3-18-g5258