From 98c45f51f767bfdd71d773cceaceb403352e51ae Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Fri, 3 Aug 2018 20:13:04 +1000 Subject: selftests/powerpc/64: Test all paths through copy routines The hand-coded assembler 64-bit copy routines include feature sections that select one code path or another depending on which CPU we are executing on. The self-tests for these copy routines end up testing just one path. This adds a mechanism for selecting any desired code path at compile time, and makes 2 or 3 versions of each test, each using a different code path, so as to cover all the possible paths. Signed-off-by: Paul Mackerras [mpe: Add -mcpu=power4 to CFLAGS for older compilers] Signed-off-by: Michael Ellerman --- .../selftests/powerpc/copyloops/asm/ppc_asm.h | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) (limited to 'tools/testing/selftests/powerpc/copyloops/asm') diff --git a/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h b/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h index dfce161aebfc..91bc40392eb3 100644 --- a/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h +++ b/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h @@ -43,17 +43,16 @@ FUNC_START(enter_vmx_ops) FUNC_START(exit_vmx_ops) blr -FUNC_START(memcpy_power7) - blr - -FUNC_START(__copy_tofrom_user_power7) - blr - FUNC_START(__copy_tofrom_user_base) blr -#define BEGIN_FTR_SECTION -#define FTR_SECTION_ELSE -#define ALT_FTR_SECTION_END_IFCLR(x) -#define ALT_FTR_SECTION_END(x, y) -#define END_FTR_SECTION_IFCLR(x) +#define BEGIN_FTR_SECTION .if test_feature +#define FTR_SECTION_ELSE .else +#define ALT_FTR_SECTION_END_IFCLR(x) .endif +#define ALT_FTR_SECTION_END_IFSET(x) .endif +#define ALT_FTR_SECTION_END(x, y) .endif +#define END_FTR_SECTION_IFCLR(x) .endif +#define END_FTR_SECTION_IFSET(x) .endif + +/* Default to taking the first of any alternative feature sections */ +test_feature = 1 -- cgit v1.2.3-59-g8ed1b