[PATCH 1/2] powerpc test_emulate_step: fix DS operand in ld encoding to appropriate value

Balamuruhan S bala24 at linux.ibm.com
Wed Mar 11 17:14:16 AEDT 2020


ld instruction should have 14 bit immediate field (DS) concatenated with
0b00 on the right, encode it accordingly.

Fixes: 4ceae137bdab ("powerpc: emulate_step() tests for load/store instructions")
Reviewed-by: Sandipan Das <sandipan at linux.ibm.com>
Signed-off-by: Balamuruhan S <bala24 at linux.ibm.com>
---
 arch/powerpc/lib/test_emulate_step.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/lib/test_emulate_step.c b/arch/powerpc/lib/test_emulate_step.c
index 42347067739c..51c254fd15b5 100644
--- a/arch/powerpc/lib/test_emulate_step.c
+++ b/arch/powerpc/lib/test_emulate_step.c
@@ -19,7 +19,7 @@
  * definitions.
  */
 #define TEST_LD(r, base, i)	(PPC_INST_LD | ___PPC_RT(r) |		\
-					___PPC_RA(base) | IMM_L(i))
+					___PPC_RA(base) | ((i) & 0xfffc))
 #define TEST_LWZ(r, base, i)	(PPC_INST_LWZ | ___PPC_RT(r) |		\
 					___PPC_RA(base) | IMM_L(i))
 #define TEST_LWZX(t, a, b)	(PPC_INST_LWZX | ___PPC_RT(t) |		\

base-commit: 5aa19adac1f3152a5fd3b865a1ab46bb845d3696
-- 
2.24.1



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