add assign syscall skeleton

3 files changed, 21 insertions, 1 deletions

diff --git a/include/apos/caps.h b/include/apos/caps.h
index e8ef76b..b64b05a 100644
--- a/include/apos/caps.h
+++ b/include/apos/caps.h
@@ -22,6 +22,9 @@ enum {
 
 	/** Thread is allowed to force interrupt to callback in other thread. */
 	CAP_CALL = (1 << 2),
+
+	/** Thread is allowed to assign threads to processors. */
+	CAP_ASSIGN = (1 << 3),
 };
 
 /**
diff --git a/include/apos/syscalls.h b/include/apos/syscalls.h
index 1746255..5a3f2eb 100644
--- a/include/apos/syscalls.h
+++ b/include/apos/syscalls.h
@@ -81,7 +81,7 @@ enum {
 	SYS_IPC_RESP,
 
 	/** IPC notify thread, essentially interrupt or signal. */
-	SYS_IPC_NOTIFY
+	SYS_IPC_NOTIFY,
 	/** @} */
 
 	/** @name Process management. */
@@ -101,6 +101,9 @@ enum {
 	/** Switch running process. */
 	SYS_SWAP,
 
+	/** Assign thread to cpu. */
+	SYS_ASSIGN,
+
 	/** @} */
 
 	/** @name Kernel management. */
diff --git a/include/apos/uapi.h b/include/apos/uapi.h
index 4fab0ec..8a3deea 100644
--- a/include/apos/uapi.h
+++ b/include/apos/uapi.h
@@ -559,6 +559,20 @@ SYSCALL_DECLARE1(kill, tid);
  * @return \ref OK and 0.
  */
 SYSCALL_DECLARE1(swap, tid);
+
+/**
+ * Assign syscall.
+ *
+ * Assign \p tid to \p cpu, immediately swaps from whetever was running on \p cpu.
+ *
+ * @param tid Thread to assign to \p cpu.
+ * @param cpu Cpu to run \p tid on.
+ * @param c Unused.
+ * @param d Unused.
+ * @param e Unused.
+ * @return \ref OK and 0.
+ */
+SYSCALL_DECLARE2(assign, tid, cpu);
 /** @} */
 
 /** @name Configuration syscalls. */