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authorSven Schnelle <svens@stackframe.org>2012-07-29 19:18:03 +0200
committerRonald G. Minnich <rminnich@gmail.com>2012-07-31 06:46:02 +0200
commit51676b14e8cfd5bbabf487f659f11704f17f6d0f (patch)
treef75a6c5ba610385e2edb69a83223b98732ef0d09 /src/include/cpu/x86
parenta2701c60052df5544930a8dce8f01768834fdf28 (diff)
Revert "Use broadcast SIPI to startup siblings"
This reverts commit 042c1461fb777e583e5de48edf9326e47ee5595f. It turned out that sending IPIs via broadcast doesn't work on Sandybridge. We tried to come up with a solution, but didn't found any so far. So revert the code for now until we have a working solution. Change-Id: I7dd1cba5a4c1e4b0af366b20e8263b1f6f4b9714 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1381 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/include/cpu/x86')
-rw-r--r--src/include/cpu/x86/lapic.h15
1 files changed, 11 insertions, 4 deletions
diff --git a/src/include/cpu/x86/lapic.h b/src/include/cpu/x86/lapic.h
index 5c48025c8f..078f2a7c62 100644
--- a/src/include/cpu/x86/lapic.h
+++ b/src/include/cpu/x86/lapic.h
@@ -52,13 +52,20 @@ static inline __attribute__((always_inline)) unsigned long lapicid(void)
}
#ifndef __ROMCC__
+#if CONFIG_AP_IN_SIPI_WAIT != 1
+/* If we need to go back to sipi wait, we use the long non-inlined version of
+ * this function in lapic_cpu_init.c
+ */
static inline __attribute__((always_inline)) void stop_this_cpu(void)
{
- /* Called by an AP when it is ready to halt and wait for a new task */
- for(;;) {
- hlt();
- }
+ /* Called by an AP when it is ready to halt and wait for a new task */
+ for(;;) {
+ hlt();
+ }
}
+#else
+void stop_this_cpu(void);
+#endif
#if !defined(__PRE_RAM__)