mbox series

[v3,0/4] powerpc/selftests: Add Power10 2nd DAWR selftests

Message ID 20210412112218.128183-1-ravi.bangoria@linux.ibm.com
Headers show
Series powerpc/selftests: Add Power10 2nd DAWR selftests | expand

Message

Ravi Bangoria April 12, 2021, 11:22 a.m. UTC 
Power10 introduced 2nd watchpoint (DAWR). ISA 3.1, Book 3S, Ch 9 -
'Debug Facilities' covers the feature in detail. Kernel patches to
enable the 2nd DAWR are already in[1], including kvm enablement[2].
These patches adds selftests for 2nd DAWR. 

[1]: https://git.kernel.org/torvalds/c/deb2bd9bcc8428d4b65b6ba640ba8b57c1b20b17
[2]: https://git.kernel.org/torvalds/c/bd1de1a0e6eff4bde5ceae969673b85b8446fd6a

v2: https://lore.kernel.org/r/20210407054938.312857-1-ravi.bangoria@linux.ibm.com
v2->v3:
 - Fixed some checkpatch warnings

v1: https://lore.kernel.org/r/20200723102058.312282-1-ravi.bangoria@linux.ibm.com
v1->v2:
 - Kvm patches are already upstream
 - Rebased selftests to powerpc/next

Ravi Bangoria (4):
  powerpc/selftests/ptrace-hwbreak: Add testcases for 2nd DAWR
  powerpc/selftests/perf-hwbreak: Coalesce event creation code
  powerpc/selftests/perf-hwbreak: Add testcases for 2nd DAWR
  powerpc/selftests: Add selftest to test concurrent perf/ptrace events

 .../selftests/powerpc/ptrace/.gitignore       |   1 +
 .../testing/selftests/powerpc/ptrace/Makefile |   2 +-
 .../selftests/powerpc/ptrace/perf-hwbreak.c   | 631 +++++++++++++++--
 .../selftests/powerpc/ptrace/ptrace-hwbreak.c |  79 +++
 .../powerpc/ptrace/ptrace-perf-hwbreak.c      | 659 ++++++++++++++++++
 5 files changed, 1330 insertions(+), 42 deletions(-)
 create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-perf-hwbreak.c

Comments

Michael Ellerman April 29, 2021, 2:01 p.m. UTC | #1 
On Mon, 12 Apr 2021 16:52:14 +0530, Ravi Bangoria wrote:
> Power10 introduced 2nd watchpoint (DAWR). ISA 3.1, Book 3S, Ch 9 -

> 'Debug Facilities' covers the feature in detail. Kernel patches to

> enable the 2nd DAWR are already in[1], including kvm enablement[2].

> These patches adds selftests for 2nd DAWR.

> 

> [1]: https://git.kernel.org/torvalds/c/deb2bd9bcc8428d4b65b6ba640ba8b57c1b20b17

> [2]: https://git.kernel.org/torvalds/c/bd1de1a0e6eff4bde5ceae969673b85b8446fd6a

> 

> [...]


Applied to powerpc/next.

[1/4] powerpc/selftests/ptrace-hwbreak: Add testcases for 2nd DAWR
      https://git.kernel.org/powerpc/c/dae4ff8031b49af4721101d6298fc14cb9c16a4c
[2/4] powerpc/selftests/perf-hwbreak: Coalesce event creation code
      https://git.kernel.org/powerpc/c/c9cb0afb4eaa03801322f48dad4093979ff45e88
[3/4] powerpc/selftests/perf-hwbreak: Add testcases for 2nd DAWR
      https://git.kernel.org/powerpc/c/c65c64cc7bbd273121edf96a7a5a0269038ab454
[4/4] powerpc/selftests: Add selftest to test concurrent perf/ptrace events
      https://git.kernel.org/powerpc/c/290f7d8ce2b1eea5413bb120e0d9d610675b7fba

cheers