From 51676b14e8cfd5bbabf487f659f11704f17f6d0f Mon Sep 17 00:00:00 2001 From: Sven Schnelle Date: Sun, 29 Jul 2012 19:18:03 +0200 Subject: 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 Reviewed-on: http://review.coreboot.org/1381 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich --- src/arch/x86/include/arch/cpu.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'src/arch/x86/include') 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 */ -- cgit v1.2.3