From: kaf24@firebug.cl.cam.ac.uk <kaf24@firebug.cl.cam.ac.uk>
Date: Wed, 21 Jun 2006 09:56:20 +0000 (+0100)
Subject: [IA64] stub to support dump_execution_state() on ia64
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~15921^2~9
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=0cbf97ac5c374403d2d1e9aa3d27dc4bea114898;p=xen.git

[IA64] stub to support dump_execution_state() on ia64
Also implement on_selected_cpus() for ia64.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
---

diff --git a/xen/arch/ia64/linux-xen/smp.c b/xen/arch/ia64/linux-xen/smp.c
index 760349abf0..8801d28f64 100644
--- a/xen/arch/ia64/linux-xen/smp.c
+++ b/xen/arch/ia64/linux-xen/smp.c
@@ -421,6 +421,42 @@ smp_call_function (void (*func) (void *info), void *info, int nonatomic, int wai
 }
 EXPORT_SYMBOL(smp_call_function);
 
+#ifdef XEN
+int
+on_selected_cpus(cpumask_t selected, void (*func) (void *info), void *info,
+                 int retry, int wait)
+{
+	struct call_data_struct data;
+	unsigned int cpu, nr_cpus = cpus_weight(selected);
+
+	ASSERT(local_irq_is_enabled());
+
+	if (!nr_cpus)
+		return 0;
+
+	data.func = func;
+	data.info = info;
+	data.wait = wait;
+	atomic_set(&data.started, 0);
+	atomic_set(&data.finished, 0);
+
+	spin_lock(&call_lock);
+
+	call_data = &data;
+	wmb();
+
+	for_each_cpu_mask(cpu, selected)
+		send_IPI_single(cpu, IPI_CALL_FUNC);
+
+	while (atomic_read(wait ? &data.finished : &data.started) != nr_cpus)
+		cpu_relax();
+
+	spin_unlock(&call_lock);
+
+	return 0;
+}
+#endif
+
 /*
  * this function calls the 'stop' function on all other CPUs in the system.
  */
diff --git a/xen/include/asm-ia64/debugger.h b/xen/include/asm-ia64/debugger.h
index d242f21b88..e320ff68cc 100644
--- a/xen/include/asm-ia64/debugger.h
+++ b/xen/include/asm-ia64/debugger.h
@@ -41,7 +41,14 @@
 #include <xen/gdbstub.h>
 
 void show_registers(struct cpu_user_regs *regs);
-#define show_execution_state show_registers
+void dump_stack(void);
+
+static inline void
+show_execution_state(struct cpu_user_regs *regs)
+{
+    show_registers(regs);
+    dump_stack();
+}
 
 // NOTE: on xen struct pt_regs = struct cpu_user_regs
 //       see include/asm-ia64/linux-xen/asm/ptrace.h
diff --git a/xen/include/asm-ia64/xenprocessor.h b/xen/include/asm-ia64/xenprocessor.h
index 865124b965..7a38f1bc8c 100644
--- a/xen/include/asm-ia64/xenprocessor.h
+++ b/xen/include/asm-ia64/xenprocessor.h
@@ -237,4 +237,6 @@ typedef union {
     u64 itir;
 } ia64_itir_t;
 
+#define dump_execution_state() printk("FIXME: implement ia64 dump_execution_state()\n");
+
 #endif // _ASM_IA64_XENPROCESSOR_H