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| author |   Anshuman Khandual <khandual@linux.vnet.ibm.com> | 2016-09-30 10:33:02 +0800 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2016-11-17 17:11:52 +1100 |
| commit | 5bdac52f3c67e1262b1979081a362fdedebd2ed2 (patch) | |
| tree | fe93e0de4142d25384bf640ea9c6f6b4f41fc1e0 /tools/testing/selftests/powerpc/ptrace/ptrace.h | |
| parent | selftests/powerpc: Add ptrace tests for VSX, VMX registers in suspended TM (diff) | |
| download | linux-dev-5bdac52f3c67e1262b1979081a362fdedebd2ed2.tar.xz linux-dev-5bdac52f3c67e1262b1979081a362fdedebd2ed2.zip | |
selftests/powerpc: Add ptrace tests for TM SPR registers
This patch adds ptrace interface test for TM SPR registers. This
also adds ptrace interface based helper functions related to TM
SPR registers access.
Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to '')
| -rw-r--r-- | tools/testing/selftests/powerpc/ptrace/ptrace.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace.h b/tools/testing/selftests/powerpc/ptrace/ptrace.h index 9aa0498ac738..19fb825270a1 100644 --- a/tools/testing/selftests/powerpc/ptrace/ptrace.h +++ b/tools/testing/selftests/powerpc/ptrace/ptrace.h @@ -38,6 +38,11 @@ struct fpr_regs { unsigned long fpscr; }; +struct tm_spr_regs { + unsigned long tm_tfhar; + unsigned long tm_texasr; + unsigned long tm_tfiar; +}; #ifndef NT_PPC_TAR #define NT_PPC_TAR 0x103 @@ -605,6 +610,36 @@ int write_vsx_ckpt(pid_t child, unsigned long *vsx) return TEST_PASS; } +/* TM SPR */ +int show_tm_spr(pid_t child, struct tm_spr_regs *out) +{ + struct tm_spr_regs *regs; + struct iovec iov; + int ret; + + regs = (struct tm_spr_regs *) malloc(sizeof(struct tm_spr_regs)); + if (!regs) { + perror("malloc() failed"); + return TEST_FAIL; + } + + iov.iov_base = (u64 *) regs; + iov.iov_len = sizeof(struct tm_spr_regs); + + ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_SPR, &iov); + if (ret) { + perror("ptrace(PTRACE_GETREGSET) failed"); + return TEST_FAIL; + } + + if (out) + memcpy(out, regs, sizeof(struct tm_spr_regs)); + + return TEST_PASS; +} + + + /* Analyse TEXASR after TM failure */ inline unsigned long get_tfiar(void) { |