[MIPS] Fix instable BogoMIPS on multi-issue processors.
Increase alignment of BogoMIPS loop to 8 bytes. Having the delay loop
overlap cache line boundaries may cause instable delays.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/delay.h b/include/asm-mips/delay.h
index 64dd451..928f30f 100644
--- a/include/asm-mips/delay.h
+++ b/include/asm-mips/delay.h
@@ -19,20 +19,22 @@
{
if (sizeof(long) == 4)
__asm__ __volatile__ (
- ".set\tnoreorder\n"
- "1:\tbnez\t%0,1b\n\t"
- "subu\t%0,1\n\t"
- ".set\treorder"
+ " .set noreorder \n"
+ " .align 3 \n"
+ "1: bnez %0, 1b \n"
+ " subu %0, 1 \n"
+ " .set reorder \n"
: "=r" (loops)
: "0" (loops));
else if (sizeof(long) == 8)
__asm__ __volatile__ (
- ".set\tnoreorder\n"
- "1:\tbnez\t%0,1b\n\t"
- "dsubu\t%0,1\n\t"
- ".set\treorder"
- :"=r" (loops)
- :"0" (loops));
+ " .set noreorder \n"
+ " .align 3 \n"
+ "1: bnez %0, 1b \n"
+ " dsubu %0, 1 \n"
+ " .set reorder \n"
+ : "=r" (loops)
+ : "0" (loops));
}