Changeset a0d74fd in mainline for arch/sparc64/src/proc/scheduler.c

Timestamp:

2006-03-01T11:07:04Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

9ad03fe

Parents:

2c49fbbe

Message:

ia64 work.
Provide PA2KA(identity) mapping for kernel data references via Alternate Data TLB Fault handler.
Add before_thread_runs_arch() that maps kstack, if necessary.
Add easy to use dtlb_mapping_insert() for comfortable insertion of kernel data mappings.

File:

• arch/sparc64/src/proc/scheduler.c (modified) (4 diffs)

arch/sparc64/src/proc/scheduler.c

@@ -31 +31 @@
 #include <arch.h>
 #include <arch/mm/tlb.h>
+#include <arch/mm/page.h>
 #include <config.h>
 #include <align.h>
@@ -39 +40 @@
         __address base;
         
-        base = ALIGN_DOWN(config.base, 4*1024*1024);
+        base = ALIGN_DOWN(config.base, 1<<KERNEL_PAGE_WIDTH);
 
-        if ((__address) THREAD->kstack < base || (__address) THREAD->kstack > base + 4*1024*1024) {
+        if ((__address) THREAD->kstack < base || (__address) THREAD->kstack > base + (1<<KERNEL_PAGE_WIDTH)) {
                 /*
                  * Kernel stack of this thread is not locked in DTLB.
@@ -48 +49 @@
                  */
                  dtlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, (__address) THREAD->kstack);
-                 dtlb_insert_mapping((__address) THREAD->kstack, (__address) THREAD->kstack, PAGESIZE_8K, true, true);
+                 dtlb_insert_mapping((__address) THREAD->kstack, KA2PA(THREAD->kstack), PAGESIZE_8K, true, true);
         }       
 }
@@ -57 +58 @@
         __address base;
 
-        base = ALIGN_DOWN(config.base, 4*1024*1024);
+        base = ALIGN_DOWN(config.base, 1<<KERNEL_PAGE_WIDTH);
 
-        if ((__address) THREAD->kstack < base || (__address) THREAD->kstack > base + 4*1024*1024) {
+        if ((__address) THREAD->kstack < base || (__address) THREAD->kstack > base + (1<<KERNEL_PAGE_WIDTH)) {
                 /*
                  * Kernel stack of this thread is locked in DTLB.