Jeremy Fitzhardinge wrote:
Not sure, but I think this replicates the behaviour of the original
code (ie, INIT_THREAD_INFO initializes cpu to 0, so smp_processor_id
will return 0). Hm, Voyager will probably need a little patch to
update the the PDA cpu_number properly in smp_setup_processor_id().
Something like this, perhaps:
Subject: set the boot CPU number in the boot_pda
Signed-off-by: Jeremy Fitzhardinge <[email protected]>
diff -r 97aa2356d521 arch/i386/mach-voyager/voyager_smp.c
--- a/arch/i386/mach-voyager/voyager_smp.c Mon Sep 11 14:52:11 2006 -0700
+++ b/arch/i386/mach-voyager/voyager_smp.c Mon Sep 11 16:34:09 2006 -0700
@@ -28,6 +28,7 @@
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
#include <asm/arch_hooks.h>
+#include <asm/pda.h>
/* TLB state -- visible externally, indexed physically */
DEFINE_PER_CPU(struct tlb_state, cpu_tlbstate) ____cacheline_aligned = { &init_mm, 0 };
@@ -1949,4 +1950,5 @@ smp_setup_processor_id(void)
smp_setup_processor_id(void)
{
current_thread_info()->cpu = hard_smp_processor_id();
-}
+ write_pda(cpu_number, hard_smp_processor_id());
+}
-
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