* Vaidyanathan Srinivasan <sva...@linux.vnet.ibm.com> [2010-03-10 17:49:25]:
> Hi Ben, > > I have cleaned up the code from the previous post: > http://lists.ozlabs.org/pipermail/linuxppc-dev/2010-February/080630.html > > Changes from v1: > * Removed redundant return statements and rearranged code > > Description: > > A new hcall H_EM_GET_PARMS as been added to obtain power mode data > from the platform. This data can be used by user space administrative > tools for better power management. > > The following patch add data from this new hcall into the lparcfg > driver and exports to user space along with other existing lpar data > in /proc/powerpc/lparcfg > > Please review and include in powerpc -next tree. Hi Ben, Looks like you have not opened the -next tree after the merge window yet. The current git tree status is same as -merge. Please review and include in powerpc next tree. Thanks, Vaidy > --- > powerpc: 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 <sva...@linux.vnet.ibm.com> > --- > arch/powerpc/include/asm/hvcall.h | 1 + > arch/powerpc/kernel/lparcfg.c | 12 +++++++++++- > 2 files changed, 12 insertions(+), 1 deletions(-) > > diff --git a/arch/powerpc/include/asm/hvcall.h > b/arch/powerpc/include/asm/hvcall.h > index f027581..ebe7493 100644 > --- a/arch/powerpc/include/asm/hvcall.h > +++ b/arch/powerpc/include/asm/hvcall.h > @@ -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 > diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c > index d09d1c6..ff698fb 100644 > --- a/arch/powerpc/kernel/lparcfg.c > +++ b/arch/powerpc/kernel/lparcfg.c > @@ -37,7 +37,7 @@ > #include <asm/vio.h> > #include <asm/mmu.h> > > -#define MODULE_VERS "1.8" > +#define MODULE_VERS "1.9" > #define MODULE_NAME "lparcfg" > > /* #define LPARCFG_DEBUG */ > @@ -486,6 +486,14 @@ 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; > @@ -540,6 +548,8 @@ 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; > } > > > _______________________________________________ > Linuxppc-dev mailing list > Linuxppc-dev@lists.ozlabs.org > https://lists.ozlabs.org/listinfo/linuxppc-dev _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
