From 7622db4ccaa0f68989f2600a567784962a0c5683 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Thu, 11 Dec 1997 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1997-12-11

---
 carrera/main.c | 6 ++++++
 port/chan.c    | 1 +
 2 files changed, 7 insertions(+)

diff --git a/carrera/main.c b/carrera/main.c
index a0cc26f416c7a8a048f580e02a18b173c2cfd3a5..de5cfd2552f4021b2b7117cab74d5a3054f1a57f 100644
--- a/carrera/main.c
+++ b/carrera/main.c
@@ -300,6 +300,12 @@ iomapinit(void)
 
 	/* Invalidate the old entries */
 	IO(ulong, Tir) = 0;
+
+	/* Invalidate R4030 I/O cache */
+	for(i=0; i<8; i++){
+		*(ulong*)0xE0000034 = i<<2;
+		*(ulong*)0xE000004C = 0;
+	}
 }
 
 /*
diff --git a/port/chan.c b/port/chan.c
index 44dec72bbc3739385c125fb604385973b4352a3e..a561be05d73ba30c8083f66100bcd70207e9d312 100644
--- a/port/chan.c
+++ b/port/chan.c
@@ -164,6 +164,7 @@ okchan(char *msg, int n)
 	int s;
 	Chan *c;
 
+	return;
 	s = splhi();
 	for(c = chanalloc.list; c; c = c->link)
 		okchan1(c, msg, n);