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powerpc/pseries: Export data from new hcall H_EM_GET_PARMS

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Add support for H_EM_GET_PARMS hcall that will return data
related to power modes from the platform.  Export the data
directly to user space for administrative tools to interpret
and use.

cat /proc/powerpc/lparcfg will export power mode data

Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Vaidyanathan Srinivasan
2010-03-31 21:39:24 +00:00
committed by Benjamin Herrenschmidt
parent 9c7cc234dc
commit 6fe9d1facb
2 changed files with 12 additions and 1 deletions
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arch/powerpc/include/asm/hvcall.h
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@@ -228,6 +228,7 @@
#define H_JOIN 0x298
#define H_VASI_STATE 0x2A4
#define H_ENABLE_CRQ 0x2B0
#define H_GET_EM_PARMS 0x2B8
#define H_SET_MPP 0x2D0
#define H_GET_MPP 0x2D4
#define MAX_HCALL_OPCODE H_GET_MPP