Four level pagetables, now with hugepages

[David Gibson]

On Mon, May 16, 2005 at 09:43:43AM -0500, Milton Miller wrote:
> On Mon May 16 14:43:53 EST 2005, David Gibson wrote:
> >===================================================================
> >17:57:38.000000000 +1000
> >+++ working-2.6/arch/ppc64/kernel/head.S        2005-05-13 
> >17:57:39.000000000 +1000
> >@@ -38,6 +38,7 @@
> > #include <asm/cputable.h>
> > #include <asm/setup.h>
> > #include <asm/hvcall.h>
> >+#include <asm/pgtable.h>
> >
> > #ifdef CONFIG_PPC_ISERIES
> > #define DO_SOFT_DISABLE
> >@@ -2117,17 +2118,17 @@
> > empty_zero_page:
> >        .space  4096
> >
> >-       .globl  swapper_pg_dir
> >-swapper_pg_dir:
> >-       .space  4096
> >-
> > #ifdef CONFIG_SMP
> > /* 1 page segment table per cpu (max 48, cpu0 allocated at 
> >STAB0_PHYS_ADDR) */
> >        .globl  stab_array
> > stab_array:
> >        .space  4096 * 48
> > #endif
> >-
> >+
> >+       .globl  swapper_pg_dir
> >+swapper_pg_dir:
> >+       .space  PAGE_SIZE
> >+
> > /*
> >  * This space gets a copy of optional info passed to us by the 
> >bootstrap
> >  * Used to pass parameters into the kernel like root=/dev/sda1, etc.
> 
> Does this change to PAGE_SIZE need to be > 4k aligned?   If so we
> shouuld define a new linker section.

No, this patch doesn't change PAGE_SIZE, it's still 4k.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/people/dgibson