From: notaz <notasas@gmail.com>
Date: Sat, 2 Jan 2010 21:03:04 +0000 (+0000)
Subject: 32x: drc: mmap dram+rom for direct dereference
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=libpicofe.git;a=commitdiff_plain;h=997b2e4ff9773b32d81bb8e1faa17bb9c379f68b

32x: drc: mmap dram+rom for direct dereference

git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@851 be3aeb3a-fb24-0410-a615-afba39da0efa
---

diff --git a/linux/plat.c b/linux/plat.c
index d777f23..492007c 100644
--- a/linux/plat.c
+++ b/linux/plat.c
@@ -4,6 +4,7 @@
 #include <sys/time.h>
 #include <time.h>
 #include <unistd.h>
+#include <sys/mman.h>
 
 #include "../common/plat.h"
 
@@ -108,3 +109,21 @@ int plat_wait_event(int *fds_hnds, int count, int timeout_ms)
 	return ret;
 }
 
+void *plat_mmap(unsigned long addr, size_t size)
+{
+	void *req, *ret;
+	req = (void *)addr;
+	ret = mmap(req, size, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANONYMOUS, -1, 0);
+	if (ret == MAP_FAILED)
+		return NULL;
+	if (ret != req)
+		printf("warning: mmaped to %p, requested %p\n", ret, req);
+
+	return ret;
+}
+
+void plat_munmap(void *ptr, size_t size)
+{
+	munmap(ptr, size);
+}
+