Use broadcast SIPI to startup siblings

The current code for initializing AP cpus has several shortcomings:

- it assumes APIC IDs are sequential
- it uses only the BSP for determining the AP count, which is bad if
  there's more than one physical CPU, and CPUs are of different type

Note that the new code call cpu->ops->init() in parallel, and therefore
some CPU code needs to be changed to address that. One example are old
Intel HT enabled CPUs which can't do microcode update in parallel.

Change-Id: Ic48a1ebab6a7c52aa76765f497268af09fa38c25
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/1139
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

1 files changed, 0 insertions, 24 deletions

diff --git a/src/arch/x86/include/arch/cpu.h b/src/arch/x86/include/arch/cpu.h
index 0dc92fba9e..0fe5ea58b7 100644
--- a/src/arch/x86/include/arch/cpu.h
+++ b/src/arch/x86/include/arch/cpu.h
@@ -158,30 +158,6 @@ 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 */