From: Sathvika Vasireddy <sathvika@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: sathvika@linux.vnet.ibm.com, naveen.n.rao@linux.ibm.com, dja@axtens.net
Subject: [PATCH v2 2/2] powerpc/sstep: Add tests for setb instruction
Date: Tue, 11 May 2021 07:18:33 -0500 [thread overview]
Message-ID: <b05b61ccb5f10279d46fed490796f32ea2ccc270.1620727160.git.sathvika@linux.vnet.ibm.com> (raw)
In-Reply-To: <cover.1620727160.git.sathvika@linux.vnet.ibm.com>
In-Reply-To: <cover.1620727160.git.sathvika@linux.vnet.ibm.com>
This adds selftests for setb instruction.
Signed-off-by: Sathvika Vasireddy <sathvika@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/ppc-opcode.h | 1 +
arch/powerpc/lib/test_emulate_step.c | 29 +++++++++++++++++++++++++++++
2 files changed, 30 insertions(+)
diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index ac41776661e9..927551dd870b 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -245,6 +245,7 @@
#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
diff --git a/arch/powerpc/lib/test_emulate_step.c b/arch/powerpc/lib/test_emulate_step.c
index 783d1b85ecfe..a0a52fe5e979 100644
--- a/arch/powerpc/lib/test_emulate_step.c
+++ b/arch/powerpc/lib/test_emulate_step.c
@@ -53,6 +53,8 @@
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)
{
@@ -929,6 +931,33 @@ static struct compute_test compute_tests[] = {
}
}
},
+ {
+ .mnemonic = "setb",
+ .cpu_feature = CPU_FTR_ARCH_300,
+ .subtests = {
+ {
+ .descr = "BFA = 1, CR = GT",
+ .instr = TEST_SETB(20, 1),
+ .regs = {
+ .ccr = 0x4000000,
+ }
+ },
+ {
+ .descr = "BFA = 4, CR = LT",
+ .instr = TEST_SETB(20, 4),
+ .regs = {
+ .ccr = 0x8000,
+ }
+ },
+ {
+ .descr = "BFA = 5, CR = EQ",
+ .instr = TEST_SETB(20, 5),
+ .regs = {
+ .ccr = 0x200,
+ }
+ }
+ }
+ },
{
.mnemonic = "add",
.subtests = {
--
2.16.4
next prev parent reply other threads:[~2021-05-11 12:04 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-11 12:18 [PATCH v2 0/2] powerpc/sstep: Add emulation support and tests for 'setb' instruction Sathvika Vasireddy
2021-05-11 12:18 ` [PATCH v2 1/2] powerpc/sstep: Add emulation support for ‘setb’ instruction Sathvika Vasireddy
2021-05-11 19:57 ` Segher Boessenkool
2021-05-17 13:34 ` Naveen N. Rao
2021-05-27 5:36 ` Sandipan Das
2021-05-11 12:18 ` Sathvika Vasireddy [this message]
2021-05-17 13:34 ` [PATCH v2 2/2] powerpc/sstep: Add tests for setb instruction Naveen N. Rao
2021-06-06 12:08 ` [PATCH v2 0/2] powerpc/sstep: Add emulation support and tests for 'setb' instruction Michael Ellerman
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