From 35cf8beb336549e77c8c9e3b4af92e98aa408efa Mon Sep 17 00:00:00 2001
From: David van Moolenbroek <david@minix3.org>
Date: Sun, 11 Dec 2011 15:24:28 +0100
Subject: [PATCH] procfs: add /proc/dmap

---
 servers/procfs/inc.h  |  2 ++
 servers/procfs/root.c | 23 +++++++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/servers/procfs/inc.h b/servers/procfs/inc.h
index 4240e076a..f1c0b8851 100644
--- a/servers/procfs/inc.h
+++ b/servers/procfs/inc.h
@@ -53,9 +53,11 @@
 #if defined(_USEAVFS)
 # include "avfs/const.h"
 # include "avfs/fproc.h"
+# include "avfs/dmap.h"
 #else
 # include "vfs/const.h"
 # include "vfs/fproc.h"
+# include "vfs/dmap.h"
 #endif
 
 #include <minix/vtreefs.h>
diff --git a/servers/procfs/root.c b/servers/procfs/root.c
index 9b07437a1..a402fb384 100644
--- a/servers/procfs/root.c
+++ b/servers/procfs/root.c
@@ -2,6 +2,7 @@
 
 #include "inc.h"
 #include <machine/pci.h>
+#include <minix/dmap.h>
 #include "cpuinfo.h"
 
 FORWARD _PROTOTYPE( void root_hz, (void)				);
@@ -10,6 +11,7 @@ FORWARD _PROTOTYPE( void root_loadavg, (void)				);
 FORWARD _PROTOTYPE( void root_kinfo, (void)				);
 FORWARD _PROTOTYPE( void root_meminfo, (void)				);
 FORWARD _PROTOTYPE( void root_pci, (void)				);
+FORWARD _PROTOTYPE( void root_dmap, (void)				);
 
 struct file root_files[] = {
 	{ "hz",		REG_ALL_MODE,	(data_t) root_hz	},
@@ -18,6 +20,7 @@ struct file root_files[] = {
 	{ "kinfo",	REG_ALL_MODE,	(data_t) root_kinfo	},
 	{ "meminfo",	REG_ALL_MODE,	(data_t) root_meminfo	},
 	{ "pci",	REG_ALL_MODE,	(data_t) root_pci	},
+	{ "dmap",	REG_ALL_MODE,	(data_t) root_dmap	},
 	{ "cpuinfo",	REG_ALL_MODE,	(data_t) root_cpuinfo	},
 	{ NULL,		0,		NULL			}
 };
@@ -140,3 +143,23 @@ PRIVATE void root_pci(void)
 		r = pci_next_dev(&devind, &vid, &did);
 	}
 }
+
+/*===========================================================================*
+ *				root_dmap				     *
+ *===========================================================================*/
+PRIVATE void root_dmap(void)
+{
+	struct dmap dmap[NR_DEVICES];
+	int i;
+
+	if (getsysinfo(VFS_PROC_NR, SI_DMAP_TAB, dmap, sizeof(dmap)) != OK)
+		return;
+
+	for (i = 0; i < NR_DEVICES; i++) {
+		if (dmap[i].dmap_driver == NONE)
+			continue;
+
+		buf_printf("%u %s %u\n", i, dmap[i].dmap_label,
+			dmap[i].dmap_driver);
+	}
+}
-- 
2.44.0