From 87a42e555bf952047e287f4c7810cd538595d5af Mon Sep 17 00:00:00 2001
From: Alejandro Soto <alejandro@34project.org>
Date: Wed, 15 Nov 2023 19:10:34 -0600
Subject: rtl/smp: implement SMP dead/alive handling

---
 demo/smp.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'demo/smp.c')

diff --git a/demo/smp.c b/demo/smp.c
index 4357d35..8bf220e 100644
--- a/demo/smp.c
+++ b/demo/smp.c
@@ -3,6 +3,11 @@
 #define SMP_CTRL_BASE 0x30140000
 #define SMP_CTRL      (*(volatile unsigned *)SMP_CTRL_BASE)
 
+int cpu_is_alive(unsigned num)
+{
+	return !!(SMP_CTRL & (0b100 << (num * 8)));
+}
+
 void run_cpu(unsigned num)
 {
 	run_cpus(1 << num);
-- 
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