Changeset f8ddd17 in mainline for uspace/libc/include/as.h

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:

• uspace/libc/include/as.h (modified) (2 diffs)

uspace/libc/include/as.h

@@ -40 +40 @@
 #include <kernel/arch/mm/as.h>
 #include <kernel/mm/as.h>
+#include <libarch/config.h>
+
+#define PAGE_COLOR(va)  (((va) >> PAGE_WIDTH) & ((1 << PAGE_COLOR_BITS) - 1))
 
 extern void *as_area_create(void *address, size_t size, int flags);
@@ -45 +48 @@
 extern int as_area_destroy(void *address);
 extern void *set_maxheapsize(size_t mhs);
-extern void * as_get_mappable_page(size_t sz);
+extern void * as_get_mappable_page(size_t sz, int color);
 
 #endif