Changeset f8ddd17 in mainline for kernel/genarch/src/fb/fb.c

Timestamp:

2006-12-09T20:20:50Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

b82a13c

Parents:

9ab9c2ec

Message:

Rework support for virtually indexed cache.
Instead of repeatedly flushing the data cache, which was a huge overkill, refuse to create an illegal address alias
in the kernel (again) and allocate appropriate page color in userspace instead. Extend the detection also to
SYS_PHYSMEM_MAP syscall.

Add support for tracking physical memory areas mappable by SYS_PHYSMEM_MAP.

Lots of coding style changes.

File:

• kernel/genarch/src/fb/fb.c (modified) (3 diffs)

kernel/genarch/src/fb/fb.c

@@ -46 +46 @@
 #include <bitops.h>
 #include <print.h>
+#include <ddi/ddi.h>
 
 #include "helenos.xbm"
+
+static parea_t fb_parea;                /**< Physical memory area for fb. */
 
 SPINLOCK_INITIALIZE(fb_lock);
@@ -435 +438 @@
         columns = x / COL_WIDTH;
 
+        fb_parea.pbase = (uintptr_t) addr;
+        fb_parea.vbase = (uintptr_t) fbaddress;
+        fb_parea.frames = SIZE2FRAMES(fbsize);
+        fb_parea.cacheable = false;
+        ddi_parea_register(&fb_parea);
+
         sysinfo_set_item_val("fb", NULL, true);
         sysinfo_set_item_val("fb.kind", NULL, 1);
@@ -442 +451 @@
         sysinfo_set_item_val("fb.visual", NULL, visual);
         sysinfo_set_item_val("fb.address.physical", NULL, addr);
+        sysinfo_set_item_val("fb.address.color", NULL, PAGE_COLOR((uintptr_t)
+                fbaddress));
         sysinfo_set_item_val("fb.invert-colors", NULL, invert_colors);