Commit 60060d70 authored by Sathvika Vasireddy's avatar Sathvika Vasireddy Committed by Michael Ellerman
Browse files

powerpc/sstep: Add tests for setb instruction 



This adds selftests for setb instruction.

Signed-off-by: default avatarSathvika Vasireddy <sathvika@linux.vnet.ibm.com>
Tested-by: default avatarNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/b05b61ccb5f10279d46fed490796f32ea2ccc270.1620727160.git.sathvika@linux.vnet.ibm.com
parent 5b75bd76

arch/powerpc/include/asm/ppc-opcode.h

+1 −0
Original line number Diff line number Diff line
@@ -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

arch/powerpc/lib/test_emulate_step.c

+29 −0
Original line number Diff line number Diff line
@@ -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 = {