Module Name: src
Committed By: palle
Date: Fri Feb 8 20:34:23 UTC 2019
Modified Files:
src/sys/arch/sparc64/sparc64: locore.s
Log Message:
sun4v: Improve comment for next_stick_init() - no functional changes
To generate a diff of this commit:
cvs rdiff -u -r1.418 -r1.419 src/sys/arch/sparc64/sparc64/locore.s
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/sparc64/sparc64/locore.s
diff -u src/sys/arch/sparc64/sparc64/locore.s:1.418 src/sys/arch/sparc64/sparc64/locore.s:1.419
--- src/sys/arch/sparc64/sparc64/locore.s:1.418 Fri Feb 8 20:14:51 2019
+++ src/sys/arch/sparc64/sparc64/locore.s Fri Feb 8 20:34:23 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: locore.s,v 1.418 2019/02/08 20:14:51 palle Exp $ */
+/* $NetBSD: locore.s,v 1.419 2019/02/08 20:34:23 palle Exp $ */
/*
* Copyright (c) 2006-2010 Matthew R. Green
@@ -7513,6 +7513,9 @@ Lstick_ovflw:
* Sets the %stick_cmpr register to the value retrieved from %stick so
* next_stick() does not spend too much time in the function when called
* for the first time.
+ * This has been observed on (at least) a SPARC-T5 (sun4v) system where
+ * the %stick_cmpr ends up being less than the %stick value and then
+ * the stickitr() interrupt is never triggered.
*/
ENTRY(next_stick_init)
rd STICK, %o0
