From cf7cd8be60c254b44b444c97dcb238d7cf3afd4c Mon Sep 17 00:00:00 2001
From: Brett Weiland <brett_weiland@bpcspace.com>
Date: Tue, 21 Sep 2021 10:50:33 -0500
Subject: palloc smp safe (testing required, NOT pfree)

---
 src/include/smp.h | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

(limited to 'src/include/smp.h')

diff --git a/src/include/smp.h b/src/include/smp.h
index f4e3aa8..e331036 100644
--- a/src/include/smp.h
+++ b/src/include/smp.h
@@ -1,7 +1,10 @@
 #ifndef SMP_INCLUDED
 #define SMP_INCLUDED
 #include <stdint.h>
-void smp_boot();
+#include <stdbool.h>
+#include <cpuid.h>
+#include <printf.h>
+void smp_prepare();
 extern uint8_t corecount;
 
 static inline void lock(uint8_t *lock) {
@@ -18,9 +21,25 @@ static inline void unlock(uint8_t *lock) {
   asm("lock andb [%0], 0"::"r"(lock));
 }
 
-static inline void waitup(uint8_t *loto) {
+static inline bool get_set_mutex(uint16_t *mutex) {
+  bool ret;
+  asm("lock bts %1, 0\n"
+      "jc .mutex_taken\n"
+      "mov %0, 0\n"
+      "jmp .done\n"
+      ".mutex_taken:\n"
+      "mov %0, 1\n"
+      ".done:\n"
+      :"=r"(ret)
+      :"m"(*mutex));
+  return ret;
 }
 
+
+
+//THIS IS ONLY UNTIL WE GET MULTITHREADING SET UP
+uint8_t get_coreid();
+
 #define CREATE_LOTO(name)
 
 #endif
-- 
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