powerpc/ppc-opcode: Fix PPC_RAW_TW()

PPC_RAW_TW() is erroneously defined with base code 0x7f000008
instead of 0x7c000008.

That's invisible because its only user is PPC_RAW_TRAP() which is
0x7fe00008, but fix it anyway to avoid any risk of future bug.

Fixes: d00d762daf12 ("powerpc/ppc-opcode: Define and use PPC_RAW_TRAP() and PPC_RAW_TW()")
Reported-by: Naveen N. Rao <naveen.n.rao@linux.ibm.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/eca9251f1e1f82c4c46ec6380ddb28356ab3fdfe.1659527244.git.christophe.leroy@csgroup.eu

diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index d9703c5..c6d7241 100644 (file)
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -571,7 +571,7 @@
 
 #define PPC_RAW_BRANCH(offset)         (0x48000000 | PPC_LI(offset))
 #define PPC_RAW_BL(offset)             (0x48000001 | PPC_LI(offset))
-#define PPC_RAW_TW(t0, a, b)           (0x7f000008 | ___PPC_RS(t0) | ___PPC_RA(a) | ___PPC_RB(b))
+#define PPC_RAW_TW(t0, a, b)           (0x7c000008 | ___PPC_RS(t0) | ___PPC_RA(a) | ___PPC_RB(b))
 #define PPC_RAW_TRAP()                 PPC_RAW_TW(31, 0, 0)
 #define PPC_RAW_SETB(t, bfa)           (0x7c000100 | ___PPC_RT(t) | ___PPC_RA((bfa) << 2))