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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/arch/x86/include
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/arch/x86/include')
-rw-r--r--src/arch/x86/include/arch/cpu.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/src/arch/x86/include/arch/cpu.h b/src/arch/x86/include/arch/cpu.h
index 0fe5ea58b7..0dc92fba9e 100644
--- a/src/arch/x86/include/arch/cpu.h
+++ b/src/arch/x86/include/arch/cpu.h
@@ -158,6 +158,30 @@ struct cpu_driver {
struct device;
struct cpu_driver *find_cpu_driver(struct device *cpu);
+struct cpu_info {
+ device_t cpu;
+ unsigned long index;
+};
+
+static inline struct cpu_info *cpu_info(void)
+{
+ struct cpu_info *ci;
+ __asm__("andl %%esp,%0; "
+ "orl %2, %0 "
+ :"=r" (ci)
+ : "0" (~(CONFIG_STACK_SIZE - 1)),
+ "r" (CONFIG_STACK_SIZE - sizeof(struct cpu_info))
+ );
+ return ci;
+}
+
+static inline unsigned long cpu_index(void)
+{
+ struct cpu_info *ci;
+ ci = cpu_info();
+ return ci->index;
+}
+
struct cpuinfo_x86 {
uint8_t x86; /* CPU family */
uint8_t x86_vendor; /* CPU vendor */