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authorVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>2006-12-01 18:28:14 -0500
committerTony Luck <tony.luck@intel.com>2006-12-07 14:21:55 -0500
commit17e77b1cc31454908aa286bb1db3c611295ce25c (patch)
tree8d4cae677dfec84d4f41a93b8758bad5b1b8761f /include/asm-ia64
parent6dbfc19b7ea93f94f1efabaae71a921b49d8cae2 (diff)
[PATCH] Add support for type argument in PAL_GET_PSTATE
PAL_GET_PSTATE accepts a type argument to return different kinds of frequency information. Refer: Intel Itanium�Architecture Software Developer's Manual - Volume 2: System Architecture, Revision 2.2 (http://developer.intel.com/design/itanium/manuals/245318.htm) Add the support for type argument and use Instantaneous frequency in the acpi driver. Also fix a bug, where in return value of PAL_GET_PSTATE was getting compared with 'control' bits instead of 'status' bits. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64')
-rw-r--r--include/asm-ia64/pal.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/include/asm-ia64/pal.h b/include/asm-ia64/pal.h
index 308e94f6299e..bc768153f3c9 100644
--- a/include/asm-ia64/pal.h
+++ b/include/asm-ia64/pal.h
@@ -84,6 +84,11 @@
84#define PAL_SET_PSTATE 263 /* set the P-state */ 84#define PAL_SET_PSTATE 263 /* set the P-state */
85#define PAL_BRAND_INFO 274 /* Processor branding information */ 85#define PAL_BRAND_INFO 274 /* Processor branding information */
86 86
87#define PAL_GET_PSTATE_TYPE_LASTSET 0
88#define PAL_GET_PSTATE_TYPE_AVGANDRESET 1
89#define PAL_GET_PSTATE_TYPE_AVGNORESET 2
90#define PAL_GET_PSTATE_TYPE_INSTANT 3
91
87#ifndef __ASSEMBLY__ 92#ifndef __ASSEMBLY__
88 93
89#include <linux/types.h> 94#include <linux/types.h>
@@ -1141,10 +1146,10 @@ ia64_pal_halt_info (pal_power_mgmt_info_u_t *power_buf)
1141 1146
1142/* Get the current P-state information */ 1147/* Get the current P-state information */
1143static inline s64 1148static inline s64
1144ia64_pal_get_pstate (u64 *pstate_index) 1149ia64_pal_get_pstate (u64 *pstate_index, unsigned long type)
1145{ 1150{
1146 struct ia64_pal_retval iprv; 1151 struct ia64_pal_retval iprv;
1147 PAL_CALL_STK(iprv, PAL_GET_PSTATE, 0, 0, 0); 1152 PAL_CALL_STK(iprv, PAL_GET_PSTATE, type, 0, 0);
1148 *pstate_index = iprv.v0; 1153 *pstate_index = iprv.v0;
1149 return iprv.status; 1154 return iprv.status;
1150} 1155}