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-rw-r--r--arch/sparc/kernel/head_64.S22
1 files changed, 0 insertions, 22 deletions
diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S
index 91bf4c7f79b9..f8f21050448b 100644
--- a/arch/sparc/kernel/head_64.S
+++ b/arch/sparc/kernel/head_64.S
@@ -641,28 +641,6 @@ tlb_fixup_done:
641 /* Not reached... */ 641 /* Not reached... */
642 642
6431: 6431:
644 /* If we boot on a non-zero cpu, all of the per-cpu
645 * variable references we make before setting up the
646 * per-cpu areas will use a bogus offset. Put a
647 * compensating factor into __per_cpu_base to handle
648 * this cleanly.
649 *
650 * What the per-cpu code calculates is:
651 *
652 * __per_cpu_base + (cpu << __per_cpu_shift)
653 *
654 * These two variables are zero initially, so to
655 * make it all cancel out to zero we need to put
656 * "0 - (cpu << 0)" into __per_cpu_base so that the
657 * above formula evaluates to zero.
658 *
659 * We cannot even perform a printk() until this stuff
660 * is setup as that calls cpu_clock() which uses
661 * per-cpu variables.
662 */
663 sub %g0, %o0, %o1
664 sethi %hi(__per_cpu_base), %o2
665 stx %o1, [%o2 + %lo(__per_cpu_base)]
666#else 644#else
667 mov 0, %o0 645 mov 0, %o0
668#endif 646#endif