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powerpc/ppc-opcode: Define and use PPC_RAW_SETB()

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We have PPC_INST_SETB then build the 'setb' instruction in the
user.

Instead, define PPC_RAW_SETB() and use it.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/b08a4f26919a8f8cdcf7544ab552d9c1c63418b5.1657205708.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy 2022-07-07 16:55:16 +02:00 committed by Michael Ellerman
parent d00d762daf
commit de40303b54
2 changed files with 4 additions and 7 deletions
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2
arch/powerpc/include/asm/ppc-opcode.h
View file

@ -290,7 +290,6 @@
#define PPC_INST_STRING 0x7c00042a
#define PPC_INST_STRING_MASK 0xfc0007fe
#define PPC_INST_STRING_GEN_MASK 0xfc00067e
#define PPC_INST_SETB 0x7c000100
#define PPC_INST_STSWI 0x7c0005aa
#define PPC_INST_STSWX 0x7c00052a
#define PPC_INST_TRECHKPT 0x7c0007dd
@ -583,6 +582,7 @@
#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_TRAP() PPC_RAW_TW(31, 0, 0)
#define PPC_RAW_SETB(t, bfa) (0x7c000100 | ___PPC_RT(t) | ___PPC_RA((bfa) << 2))
/* Deal with instructions that older assemblers aren't aware of */
#define PPC_BCCTR_FLUSH stringify_in_c(.long PPC_INST_BCCTR_FLUSH)

9
arch/powerpc/lib/test_emulate_step.c
View file

@ -53,9 +53,6 @@
ppc_inst_prefix(PPC_PREFIX_MLS | __PPC_PRFX_R(pr) | IMM_H(i), \
PPC_RAW_ADDI(t, a, i))
#define TEST_SETB(t, bfa) ppc_inst(PPC_INST_SETB | ___PPC_RT(t) | ___PPC_RA((bfa & 0x7) << 2))
static void __init init_pt_regs(struct pt_regs *regs)
{
static unsigned long msr;
@ -935,21 +932,21 @@ static struct compute_test compute_tests[] = {
.subtests = {
{
.descr = "BFA = 1, CR = GT",
.instr = TEST_SETB(20, 1),
.instr = ppc_inst(PPC_RAW_SETB(20, 1)),
.regs = {
.ccr = 0x4000000,
}
},
{
.descr = "BFA = 4, CR = LT",
.instr = TEST_SETB(20, 4),
.instr = ppc_inst(PPC_RAW_SETB(20, 4)),
.regs = {
.ccr = 0x8000,
}
},
{
.descr = "BFA = 5, CR = EQ",
.instr = TEST_SETB(20, 5),
.instr = ppc_inst(PPC_RAW_SETB(20, 5)),
.regs = {
.ccr = 0x200,
}