Changeset 7447572 in mainline

Timestamp:

2009-01-09T21:15:07Z (15 years ago)

Author:

Jiri Svoboda <jirik.svoboda@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

4a62ec9

Parents:

f651e80

Message:

Fix fb-con interbuffer for much faster redraw on a VC switch.

File:

• uspace/srv/console/console.c (modified) (2 diffs)

uspace/srv/console/console.c

@@ -495 +495 @@
         ipcarg_t phonehash;
         int kbd_phone;
+        size_t ib_size;
         int i;
         
@@ -545 +546 @@
         }
         connections[KERNEL_CONSOLE].used = 1;
-        
-        interbuffer = mmap(NULL,
-            sizeof(keyfield_t) * fb_info.cols * fb_info.rows,
-            PROTO_READ | PROTO_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
-        if (!interbuffer) {
+
+        /* Set up shared memory buffer. */
+        ib_size = sizeof(keyfield_t) * fb_info.cols * fb_info.rows;
+        interbuffer = as_get_mappable_page(ib_size);
+
+        if (as_area_create(interbuffer, ib_size, AS_AREA_READ |
+            AS_AREA_WRITE | AS_AREA_CACHEABLE) != interbuffer) {
+                interbuffer = NULL;
+        }
+
+        if (interbuffer) {
                 if (ipc_share_out_start(fb_info.phone, interbuffer,
                     AS_AREA_READ) != EOK) {
-                        munmap(interbuffer,
-                            sizeof(keyfield_t) * fb_info.cols * fb_info.rows);
+                        as_area_destroy(interbuffer);
                         interbuffer = NULL;
                 }