Changeset f8ddd17 in mainline for uspace/rd/rd.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:

• uspace/rd/rd.c (modified) (1 diff)

uspace/rd/rd.c

@@ -74 +74 @@
         size_t rd_size = sysinfo_value("rd.size");
         void * rd_ph_addr = (void *) sysinfo_value("rd.address.physical");
+        int rd_color = (int) sysinfo_value("rd.address.color");
         
         if (rd_size == 0)
                 return false;
         
-        void * rd_addr = as_get_mappable_page(rd_size);
+        void * rd_addr = as_get_mappable_page(rd_size, rd_color);
         
         physmem_map(rd_ph_addr, rd_addr, ALIGN_UP(rd_size, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE);