[XTENSA] Fix comments regarding the number of frames to save
Signed-off-by: Marc Gauthier <marc@tensilica.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S
index 401b33b..b4b14a5 100644
--- a/arch/xtensa/kernel/entry.S
+++ b/arch/xtensa/kernel/entry.S
@@ -1336,11 +1336,11 @@
wsr a2, DEPC # preserve a2
rsr a2, WINDOWBASE
- rsr a3, WINDOWSTART
+ rsr a3, WINDOWSTART # a3 = xxxwww1yy
ssr a2 # holds WB
slli a2, a3, WSBITS
- or a3, a3, a2 # a2 = xxxwww1yyxxxwww1yy
- srl a3, a3
+ or a3, a3, a2 # a3 = xxxwww1yyxxxwww1yy
+ srl a3, a3 # a3 = 00xxxwww1yyxxxwww1
/* We are done if there are no more than the current register frame. */
@@ -1395,8 +1395,8 @@
j .Lc12c
.Lnospill:
- rsr a2, DEPC # restore a2 and 'return'
- jx a0
+ rsr a2, DEPC
+ ret
.Lloop: _bbsi.l a3, 1, .Lc4
_bbci.l a3, 2, .Lc12
@@ -1423,7 +1423,7 @@
movi a3, 1
sll a3, a3
wsr a3, WINDOWSTART
- jx a0
+ ret
.Lc4: s32e a4, a9, -16
s32e a5, a9, -12