Changeset 29029ac0 in mainline for kernel/arch/sparc64/src/proc/sun4u/scheduler.c

Timestamp:

2024-01-18T16:31:40Z (18 months ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

master

Children:

1c1767f

Parents:

ed7e057

Message:

Call after_thread_ran_arch() before context switch

This is only used on sparc, and requires an additional window flush
before the register is sampled. Doing it this way allows switching
from one thread to another without the intermediary step of
a special scheduler context.

File:

• kernel/arch/sparc64/src/proc/sun4u/scheduler.c (modified) (1 diff)

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

@@ -76 +76 @@
 {
         if (THREAD->uspace) {
+                asm volatile ("flushw");
+
                 /* sample the state of the userspace window buffer */
                 THREAD->arch.uspace_window_buffer =