Changeset e49e234 in mainline for kernel/arch/ia32/src/mm/page.c

Timestamp:

2009-02-27T11:32:31Z (15 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

c1f7f6ea

Parents:

5f0f29ce

Message:

kernel memory management revisited (phase 2): map physical memory according to zones

• ia32: register reserved and ACPI zones
• pareas are now used only for mapping of present physical memory (hw_area() is gone)
• firmware zones and physical addresses outside any zones are allowed to be mapped generally
• fix nasty antient bug in zones_insert_zone()

File:

• kernel/arch/ia32/src/mm/page.c (modified) (5 diffs)

kernel/arch/ia32/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/frame.h>
@@ -51 +49 @@
 #include <print.h>
 #include <interrupt.h>
-#include <ddi/ddi.h>
-
-/** Physical memory area for devices. */
-static parea_t dev_area;
-static parea_t ega_area;
 
 void page_arch_init(void)
@@ -61 +54 @@
         uintptr_t cur;
         int flags;
-
+        
         if (config.cpu_active == 1) {
                 page_mapping_operations = &pt_mapping_operations;
@@ -74 +67 @@
                         page_mapping_insert(AS_KERNEL, PA2KA(cur), cur, flags);
                 }
-
+                
                 exc_register(14, "page_fault", (iroutine) page_fault);
                 write_cr3((uintptr_t) AS_KERNEL->genarch.page_table);
         } else
                 write_cr3((uintptr_t) AS_KERNEL->genarch.page_table);
-
+        
         paging_on();
 }
@@ -99 +92 @@
         
         return virtaddr;
-}
-
-void hw_area(void)
-{
-        dev_area.pbase = end_frame;
-        dev_area.frames = SIZE2FRAMES(0xffffffff - end_frame);
-        ddi_parea_register(&dev_area);
-        
-        ega_area.pbase = EGA_VIDEORAM;
-        ega_area.frames = SIZE2FRAMES(EGA_VRAM_SIZE);
-        ddi_parea_register(&ega_area);
 }