diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2021-09-03 22:57:07 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-09-13 22:34:11 +1000 |
| commit | 5379ef2a60431232b9bb01c6d3580b875123d723 (patch) | |
| tree | d0ec1fcc6d00a876e88681f4863579bf2e9f084f /tools/testing/selftests/powerpc/tm/tm-syscall-asm.S | |
| parent | powerpc/64s: system call scv tabort fix for corrupt irq soft-mask state (diff) | |
| download | linux-5379ef2a60431232b9bb01c6d3580b875123d723.tar.gz linux-5379ef2a60431232b9bb01c6d3580b875123d723.zip | |
selftests/powerpc: Add scv versions of the basic TM syscall tests
The basic TM vs syscall test code hard codes an sc instruction for the
system call, which fails to cover scv even when the userspace libc has
support for it.
Duplicate the tests with hard coded scv variants so both are tested
when possible.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Fix build on old toolchains by using .long for scv]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210903125707.1601269-2-npiggin@gmail.com
Diffstat (limited to 'tools/testing/selftests/powerpc/tm/tm-syscall-asm.S')
| -rw-r--r-- | tools/testing/selftests/powerpc/tm/tm-syscall-asm.S | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/tools/testing/selftests/powerpc/tm/tm-syscall-asm.S b/tools/testing/selftests/powerpc/tm/tm-syscall-asm.S index bd1ca25febe4..aed632d29fff 100644 --- a/tools/testing/selftests/powerpc/tm/tm-syscall-asm.S +++ b/tools/testing/selftests/powerpc/tm/tm-syscall-asm.S @@ -1,5 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#include <ppc-asm.h> +#include <basic_asm.h> #include <asm/unistd.h> .text @@ -26,3 +26,38 @@ FUNC_START(getppid_tm_suspended) 1: li r3, -1 blr + + +.macro scv level + .long (0x44000001 | (\level) << 5) +.endm + +FUNC_START(getppid_scv_tm_active) + PUSH_BASIC_STACK(0) + tbegin. + beq 1f + li r0, __NR_getppid + scv 0 + tend. + POP_BASIC_STACK(0) + blr +1: + li r3, -1 + POP_BASIC_STACK(0) + blr + +FUNC_START(getppid_scv_tm_suspended) + PUSH_BASIC_STACK(0) + tbegin. + beq 1f + li r0, __NR_getppid + tsuspend. + scv 0 + tresume. + tend. + POP_BASIC_STACK(0) + blr +1: + li r3, -1 + POP_BASIC_STACK(0) + blr |