Messages in this thread Patch in this message | | | Date | Thu, 13 Apr 2006 16:06:51 -0700 | From | Greg KH <> | Subject | [patch 01/22] powerpc: iSeries needs slb_initialize to be called |
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-stable review patch. If anyone has any objections, please let us know.
------------------ Since the powerpc 64k pages patch went in, systems that have SLBs (like Power4 iSeries) needed to have slb_initialize called to set up some variables for the SLB miss handler. This was not being called on the boot processor on iSeries, so on single cpu iSeries machines, we would get apparent memory curruption as soon as we entered user mode.
This patch fixes that by calling slb_initialize on the boot cpu if the processor has an SLB.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- arch/powerpc/kernel/setup_64.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-)
--- linux-2.6.16.5.orig/arch/powerpc/kernel/setup_64.c +++ linux-2.6.16.5/arch/powerpc/kernel/setup_64.c @@ -256,12 +256,10 @@ void __init early_setup(unsigned long dt /* * Initialize stab / SLB management except on iSeries */ - if (!firmware_has_feature(FW_FEATURE_ISERIES)) { - if (cpu_has_feature(CPU_FTR_SLB)) - slb_initialize(); - else - stab_initialize(lpaca->stab_real); - } + if (cpu_has_feature(CPU_FTR_SLB)) + slb_initialize(); + else if (!firmware_has_feature(FW_FEATURE_ISERIES)) + stab_initialize(lpaca->stab_real); DBG(" <- early_setup()\n"); } -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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