Changeset f8ddd17 in mainline for uspace/ns/ns.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/ns/ns.c (modified) (2 diffs)

uspace/ns/ns.c

@@ -84 +84 @@
 static void *klogaddr = NULL;
 
-static void get_as_area(ipc_callid_t callid, ipc_call_t *call, char *name, void **addr)
+static void get_as_area(ipc_callid_t callid, ipc_call_t *call, char *name, char *colstr, void **addr)
 {
         void *ph_addr;
+        int ph_color;
 
         if (!*addr) {
-                ph_addr = (void *)sysinfo_value(name);
+                ph_addr = (void *) sysinfo_value(name);
                 if (!ph_addr) {
                         ipc_answer_fast(callid, ENOENT, 0, 0);
                         return;
                 }
-                *addr = as_get_mappable_page(PAGE_SIZE);
+                ph_color = (int) sysinfo_value(colstr);
+                *addr = as_get_mappable_page(PAGE_SIZE, ph_color);
                 physmem_map(ph_addr, *addr, 1, AS_AREA_READ | AS_AREA_CACHEABLE);
         }
@@ -117 +119 @@
                         switch (IPC_GET_ARG3(call)) {
                         case SERVICE_MEM_REALTIME:
-                                get_as_area(callid, &call, "clock.faddr", &clockaddr);
+                                get_as_area(callid, &call, "clock.faddr",
+                                        "clock.fcolor", &clockaddr);
                                 break;
                         case SERVICE_MEM_KLOG:
-                                get_as_area(callid, &call, "klog.faddr", &klogaddr);
+                                get_as_area(callid, &call, "klog.faddr",
+                                        "klog.fcolor", &klogaddr);
                                 break;
                         default: