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authorSuresh Siddha <suresh.b.siddha@intel.com>2005-04-25 16:25:06 -0400
committerTony Luck <tony.luck@intel.com>2005-04-25 16:25:06 -0400
commite927ecb05e1ce4bbb1e10f57008c94994e2160f5 (patch)
treebc8256cc074f02d557088696035982fa7ae0b301 /include/asm-ia64/pal.h
parent6118ec847e8e35393efc0f88394c2f5dd48c3313 (diff)
[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 <suresh.b.siddha@intel.com> Signed-off-by: Gordon Jin <gordon.jin@intel.com> Signed-off-by: Rohit Seth <rohit.seth@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64/pal.h')
-rw-r--r--include/asm-ia64/pal.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/include/asm-ia64/pal.h b/include/asm-ia64/pal.h
index 5dd477ffb88e..2303a10ee595 100644
--- a/include/asm-ia64/pal.h
+++ b/include/asm-ia64/pal.h
@@ -67,6 +67,7 @@
67#define PAL_REGISTER_INFO 39 /* return AR and CR register information*/ 67#define PAL_REGISTER_INFO 39 /* return AR and CR register information*/
68#define PAL_SHUTDOWN 40 /* enter processor shutdown state */ 68#define PAL_SHUTDOWN 40 /* enter processor shutdown state */
69#define PAL_PREFETCH_VISIBILITY 41 /* Make Processor Prefetches Visible */ 69#define PAL_PREFETCH_VISIBILITY 41 /* Make Processor Prefetches Visible */
70#define PAL_LOGICAL_TO_PHYSICAL 42 /* returns information on logical to physical processor mapping */
70 71
71#define PAL_COPY_PAL 256 /* relocate PAL procedures and PAL PMI */ 72#define PAL_COPY_PAL 256 /* relocate PAL procedures and PAL PMI */
72#define PAL_HALT_INFO 257 /* return the low power capabilities of processor */ 73#define PAL_HALT_INFO 257 /* return the low power capabilities of processor */
@@ -1559,6 +1560,73 @@ ia64_pal_prefetch_visibility (s64 trans_type)
1559 return iprv.status; 1560 return iprv.status;
1560} 1561}
1561 1562
1563/* data structure for getting information on logical to physical mappings */
1564typedef union pal_log_overview_u {
1565 struct {
1566 u64 num_log :16, /* Total number of logical
1567 * processors on this die
1568 */
1569 tpc :8, /* Threads per core */
1570 reserved3 :8, /* Reserved */
1571 cpp :8, /* Cores per processor */
1572 reserved2 :8, /* Reserved */
1573 ppid :8, /* Physical processor ID */
1574 reserved1 :8; /* Reserved */
1575 } overview_bits;
1576 u64 overview_data;
1577} pal_log_overview_t;
1578
1579typedef union pal_proc_n_log_info1_u{
1580 struct {
1581 u64 tid :16, /* Thread id */
1582 reserved2 :16, /* Reserved */
1583 cid :16, /* Core id */
1584 reserved1 :16; /* Reserved */
1585 } ppli1_bits;
1586 u64 ppli1_data;
1587} pal_proc_n_log_info1_t;
1588
1589typedef union pal_proc_n_log_info2_u {
1590 struct {
1591 u64 la :16, /* Logical address */
1592 reserved :48; /* Reserved */
1593 } ppli2_bits;
1594 u64 ppli2_data;
1595} pal_proc_n_log_info2_t;
1596
1597typedef struct pal_logical_to_physical_s
1598{
1599 pal_log_overview_t overview;
1600 pal_proc_n_log_info1_t ppli1;
1601 pal_proc_n_log_info2_t ppli2;
1602} pal_logical_to_physical_t;
1603
1604#define overview_num_log overview.overview_bits.num_log
1605#define overview_tpc overview.overview_bits.tpc
1606#define overview_cpp overview.overview_bits.cpp
1607#define overview_ppid overview.overview_bits.ppid
1608#define log1_tid ppli1.ppli1_bits.tid
1609#define log1_cid ppli1.ppli1_bits.cid
1610#define log2_la ppli2.ppli2_bits.la
1611
1612/* Get information on logical to physical processor mappings. */
1613static inline s64
1614ia64_pal_logical_to_phys(u64 proc_number, pal_logical_to_physical_t *mapping)
1615{
1616 struct ia64_pal_retval iprv;
1617
1618 PAL_CALL(iprv, PAL_LOGICAL_TO_PHYSICAL, proc_number, 0, 0);
1619
1620 if (iprv.status == PAL_STATUS_SUCCESS)
1621 {
1622 if (proc_number == 0)
1623 mapping->overview.overview_data = iprv.v0;
1624 mapping->ppli1.ppli1_data = iprv.v1;
1625 mapping->ppli2.ppli2_data = iprv.v2;
1626 }
1627
1628 return iprv.status;
1629}
1562#endif /* __ASSEMBLY__ */ 1630#endif /* __ASSEMBLY__ */
1563 1631
1564#endif /* _ASM_IA64_PAL_H */ 1632#endif /* _ASM_IA64_PAL_H */