From 4e5595a089c815febd7a0d42ab62940bf13f73ac Mon Sep 17 00:00:00 2001
From: Kimplul <kimi.h.kuparinen@gmail.com>
Date: Wed, 29 Dec 2021 18:47:16 +0200
Subject: Preparations for refactoring

---
 include/apos/cpu.h  | 4 +++-
 include/apos/irq.h  | 7 +++++++
 include/apos/lock.h | 3 +++
 include/apos/proc.h | 3 +++
 include/apos/tcb.h  | 5 ++++-
 5 files changed, 20 insertions(+), 2 deletions(-)
 create mode 100644 include/apos/irq.h

(limited to 'include/apos')

diff --git a/include/apos/cpu.h b/include/apos/cpu.h
index a55fbad..81fb07e 100644
--- a/include/apos/cpu.h
+++ b/include/apos/cpu.h
@@ -1,7 +1,9 @@
 #ifndef APOS_CPU_H
 #define APOS_CPU_H
 
-unsigned cpu_id();
+#include <apos/tcb.h>
+
+id_t cpu_id();
 /* TODO: add more cpu handling functions */
 
 #endif /* APOS_CPU_H */
diff --git a/include/apos/irq.h b/include/apos/irq.h
new file mode 100644
index 0000000..958b25f
--- /dev/null
+++ b/include/apos/irq.h
@@ -0,0 +1,7 @@
+#ifndef APOS_IRQ_H
+#define APOS_IRQ_H
+
+void enable_irq();
+void disable_irq();
+
+#endif /* APOS_IRQ_H */
diff --git a/include/apos/lock.h b/include/apos/lock.h
index b8983fa..178140b 100644
--- a/include/apos/lock.h
+++ b/include/apos/lock.h
@@ -2,12 +2,14 @@
 #define LOCK_H
 
 #include <apos/atomic.h>
+#include <apos/irq.h>
 typedef atomic_int spinlock_t;
 
 #include <lock.h>
 
 static inline void spin_lock(spinlock_t *lck)
 {
+	disable_irq();
 	do {
 		while (atomic_load_explicit(lck, memory_order_acquire))
 			optional_pause();
@@ -18,6 +20,7 @@ static inline void spin_lock(spinlock_t *lck)
 static inline void spin_unlock(spinlock_t *lck)
 {
 	atomic_store_explicit(lck, 0, memory_order_release);
+	enable_irq();
 }
 
 #endif /* LOCK_H */
diff --git a/include/apos/proc.h b/include/apos/proc.h
index 8071dda..6f272b1 100644
--- a/include/apos/proc.h
+++ b/include/apos/proc.h
@@ -2,6 +2,9 @@
 #define APOS_PROC_H
 
 #include <apos/tcb.h>
+#include <apos/vmem.h>
+
 void jump_to_userspace(struct tcb *t, vm_t bin, int argc, char **argv);
+vm_t setup_call_stack(struct tcb *t, vm_t start, size_t bytes);
 
 #endif /* APOS_PROC_H */
diff --git a/include/apos/tcb.h b/include/apos/tcb.h
index 714d750..1d85e8b 100644
--- a/include/apos/tcb.h
+++ b/include/apos/tcb.h
@@ -26,7 +26,10 @@ struct tcb {
 	id_t tid;
 
 	vm_t callback;
-	vm_t stack;
+	vm_t proc_stack;
+	vm_t call_stack;
+
+	vm_t entry;
 
 	struct vm_branch_t *b_r;
 };
-- 
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