Changeset 6eef3c4 in mainline for kernel/arch/sparc64/src

Timestamp:

2012-06-20T16:18:37Z (13 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

8b36bf2, f22dc820

Parents:

abfc9f3

Message:

cleanup thread_create() and thread_t structure

• remove 'flag' bitfield from thread_t, use individual boolean flags (can be optimized later on by adding : 1)
• use an enum for call flags, add THREAD_FLAG_NONE
• remove the 'uncounted' argument in favour of a call flag
• introduce thread_wire() to setup wired threads

Location:

kernel/arch/sparc64/src

Files:

• drivers/niagara.c (modified) (1 diff)
• proc/sun4u/scheduler.c (modified) (2 diffs)
• proc/sun4v/scheduler.c (modified) (2 diffs)
• proc/thread.c (modified) (1 diff)

kernel/arch/sparc64/src/drivers/niagara.c

@@ -184 +184 @@
         
         instance = malloc(sizeof(niagara_instance_t), FRAME_ATOMIC);
-        instance->thread = thread_create(kniagarapoll, NULL, TASK, 0,
-            "kniagarapoll", true);
+        instance->thread = thread_create(kniagarapoll, NULL, TASK,
+            THREAD_FLAG_UNCOUNTED, "kniagarapoll");
         
         if (!instance->thread) {

kernel/arch/sparc64/src/proc/sun4u/scheduler.c

@@ -51 +51 @@
 void before_thread_runs_arch(void)
 {
-        if ((THREAD->flags & THREAD_FLAG_USPACE)) {
+        if (THREAD->uspace) {
                 /*
                  * Write kernel stack address to %g6 of the alternate and
@@ -74 +74 @@
 void after_thread_ran_arch(void)
 {
-        if ((THREAD->flags & THREAD_FLAG_USPACE)) {
-                /* sample the state of the userspace window buffer */   
+        if (THREAD->uspace) {
+                /* sample the state of the userspace window buffer */
                 THREAD->arch.uspace_window_buffer = (uint8_t *) read_from_ag_g7();
         }

kernel/arch/sparc64/src/proc/sun4v/scheduler.c

@@ -54 +54 @@
 void before_thread_runs_arch(void)
 {
-        if ((THREAD->flags & THREAD_FLAG_USPACE)) {
+        if (THREAD->uspace) {
                 uint64_t sp = (uintptr_t) THREAD->kstack + STACK_SIZE -
                     (STACK_BIAS + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT));
@@ -66 +66 @@
 void after_thread_ran_arch(void)
 {
-        if ((THREAD->flags & THREAD_FLAG_USPACE)) {
-                /* sample the state of the userspace window buffer */   
+        if (THREAD->uspace) {
+                /* sample the state of the userspace window buffer */
                 THREAD->arch.uspace_window_buffer =
                     (uint8_t *) asi_u64_read(ASI_SCRATCHPAD, SCRATCHPAD_WBUF);

kernel/arch/sparc64/src/proc/thread.c

@@ -61 +61 @@
 void thread_create_arch(thread_t *t)
 {
-        if ((t->flags & THREAD_FLAG_USPACE) && (!t->arch.uspace_window_buffer))
+        if ((t->uspace) && (!t->arch.uspace_window_buffer))
                 {
                 /*