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selftests/powerpc: Add prefixed loads/stores to alignment_handler test

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Extend the alignment handler selftest to exercise prefixed load store
instructions. Add tests for prefixed VSX, floating point and integer
instructions.

Skip prefix tests if ISA version does not support prefixed instructions.

Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Tested-by: Alistair Popple <alistair@popple.id.au>
[mpe: Fixup PPC_FEATURE2_ARCH_3_1 naming as noted by Alistair]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200520021103.19798-2-jniethe5@gmail.com
This commit is contained in:
Jordan Niethe
2020-05-20 12:11:03 +10:00
committed by Michael Ellerman
parent 01bd294642
commit 620a6473df
3 changed files with 172 additions and 3 deletions
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5
tools/testing/selftests/powerpc/include/utils.h
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@@ -101,6 +101,11 @@ do { \
#define PPC_FEATURE2_ARCH_3_00 0x00800000
#endif
/* POWER10 feature */
#ifndef PPC_FEATURE2_ARCH_3_1
#define PPC_FEATURE2_ARCH_3_1 0x00040000
#endif
#if defined(__powerpc64__)
#define UCONTEXT_NIA(UC) (UC)->uc_mcontext.gp_regs[PT_NIP]
#define UCONTEXT_MSR(UC) (UC)->uc_mcontext.gp_regs[PT_MSR]