Changeset 9979acb in mainline for kernel/arch/amd64/src/mm/page.c

Timestamp:

2009-02-20T17:19:03Z (16 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

c9b550b

Parents:

5c06c1c

Message:

make hw_area API more generic
this allows mapping of EGA VRAM on ia32/amd64

File:

• kernel/arch/amd64/src/mm/page.c (modified) (3 diffs)

kernel/arch/amd64/src/mm/page.c

@@ -35 +35 @@
 #include <arch/mm/page.h>
 #include <genarch/mm/page_pt.h>
+#include <genarch/drivers/ega/ega.h>
+#include <genarch/drivers/legacy/ia32/io.h>
 #include <arch/mm/frame.h>
 #include <mm/page.h>
@@ -47 +49 @@
 #include <panic.h>
 #include <align.h>
+#include <ddi/ddi.h>
+
+/** Physical memory area for devices. */
+static parea_t dev_area;
+static parea_t ega_area;
 
 /* Definitions for identity page mapper */
@@ -215 +222 @@
 }
 
-void hw_area(uintptr_t *physaddr, pfn_t *frames)
-{
-        *physaddr = end_frame;
-        *frames = ADDR2PFN(0xfffffffffffff - end_frame);
+void hw_area(void)
+{
+        dev_area.pbase = end_frame;
+        dev_area.frames = SIZE2FRAMES(0xfffffffffffff - end_frame);
+        ddi_parea_register(&dev_area);
+        
+        ega_area.pbase = EGA_VIDEORAM;
+        ega_area.frames = SIZE2FRAMES(EGA_VRAM_SIZE);
+        ddi_parea_register(&ega_area);
 }