> Subject: Re: [PATCH] powerpc: update ibm,client-architecture Please give this a more appropriate name.
> In order to boot with more than 64 cores on machines that support the > ibm,client-architecture RTAS call a new field has been added to the > structure. This patch updates that field and adds a few others in the > process. Please detail what these are here. > It would be good if this could go in as a bugfix. > > Signed-off-by: Joel Schopp <jsch...@austin.ibm.com> > > Index: linux-2.6.git/arch/powerpc/kernel/prom_init.c > =================================================================== > --- linux-2.6.git.orig/arch/powerpc/kernel/prom_init.c > +++ linux-2.6.git/arch/powerpc/kernel/prom_init.c > @@ -654,6 +654,9 @@ static void __init early_cmdline_parse(v > #define OV5_CMO 0x00 > #endif > > +/* Option Vector 6: IBM PAPR hints */ > +#define OV6_LINUX 0x02 /* Linux is our OS */ > + > /* > * The architecture vector has an array of PVR mask/value pairs, > * followed by # option vectors - 1, followed by the option vectors. > @@ -665,7 +668,7 @@ static unsigned char ibm_architecture_ve > W(0xffffffff), W(0x0f000003), /* all 2.06-compliant */ > W(0xffffffff), W(0x0f000002), /* all 2.05-compliant */ > W(0xfffffffe), W(0x0f000001), /* all 2.04-compliant and earlier */ > - 5 - 1, /* 5 option vectors */ > + 6 - 1, /* 6 option vectors */ > > /* option vector 1: processor architectures supported */ > 3 - 2, /* length */ > @@ -697,12 +700,26 @@ static unsigned char ibm_architecture_ve > 0, /* don't halt */ > > /* option vector 5: PAPR/OF options */ > - 5 - 2, /* length */ > + 13 - 2, /* length */ > 0, /* don't ignore, don't halt */ > OV5_LPAR | OV5_SPLPAR | OV5_LARGE_PAGES | OV5_DRCONF_MEMORY | > OV5_DONATE_DEDICATE_CPU | OV5_MSI, > 0, > OV5_CMO, > + 0, /* reserved */ > + 0, /* reserved */ > + 0, /* reserved */ > + 0, /* reserved */ > + W(NR_CPUS/4), /* max cores supported */ 4? > + > + /* option vector 6: IBM PAPR hints */ > + 4 - 2, Please put a comment next to these to say what it is. > + 0, /* reserved */ > + 0, /* 1 == no secondary pteg */ > + OV6_LINUX, > + > + /* option vector 7: IBM PAPR OS identification */ > + /* a human readable ascii string will go here */ Can we do this now or remove the comment. Maybe UTS_RELEASE or something like that. Mikey > }; > > /* Old method - ELF header with PT_NOTE sections */ > > > _______________________________________________ > 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
