From 6fe9d1facb5346a615f9b571df3b91593afb29c3 Mon Sep 17 00:00:00 2001 From: Vaidyanathan Srinivasan Date: Wed, 31 Mar 2010 21:39:24 +0000 Subject: powerpc/pseries: Export data from new hcall H_EM_GET_PARMS 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 Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/lparcfg.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'arch/powerpc/kernel/lparcfg.c') diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c index c2c70e1b32c..50362b6ef6e 100644 --- a/arch/powerpc/kernel/lparcfg.c +++ b/arch/powerpc/kernel/lparcfg.c @@ -38,7 +38,7 @@ #include #include -#define MODULE_VERS "1.8" +#define MODULE_VERS "1.9" #define MODULE_NAME "lparcfg" /* #define LPARCFG_DEBUG */ @@ -487,6 +487,14 @@ static void splpar_dispatch_data(struct seq_file *m) seq_printf(m, "dispatch_dispersions=%lu\n", dispatch_dispersions); } +static void parse_em_data(struct seq_file *m) +{ + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; + + if (plpar_hcall(H_GET_EM_PARMS, retbuf) == H_SUCCESS) + seq_printf(m, "power_mode_data=%016lx\n", retbuf[0]); +} + static int pseries_lparcfg_data(struct seq_file *m, void *v) { int partition_potential_processors; @@ -541,6 +549,8 @@ static int pseries_lparcfg_data(struct seq_file *m, void *v) seq_printf(m, "slb_size=%d\n", mmu_slb_size); + parse_em_data(m); + return 0; } -- cgit v1.2.3-18-g5258