[PATCH v2 0/5] Re-write PPC64 PMU instruction count using TCG Ops

[Daniel Henrique Barboza]

Hi,

In this version the tedious repetition was taken away from the
code by using a helper that increments the PMCs based on specified
conditions.

As far as Avocado test goes, the performance is the same as the previous
version. All PMU-EBB kernel selftests are also passing. Basically we have
the same benefits from v1 but 150+ lines shorter.

changes from v1:
- former patches 2-6: removed
- new patch 2:
  * added inc_spr_if_cond() helper
- new patch 3:
  * add insn count for PMCs 1-4
- patch 4 (former 7):
  * use a loop to reduce code repetition when checking for counter
overflows 
- v1 link: https://lists.gnu.org/archive/html/qemu-devel/2021-12/msg03871.html


Daniel Henrique Barboza (5):
  target/ppc: introduce power8-pmu-insn-cnt.c.inc
  target/ppc/power8-pmu-insn-cnt: introduce inc_spr_if_cond()
  target/ppc/power8-pmu-insn-cnt: add PMCs1-4 insn count
  target/ppc/power8-pmu-insn-cnt: add pmu_check_overflow()
  target/ppc/power8-pmu.c: remove helper_insns_inc()

 target/ppc/helper.h                  |   2 +-
 target/ppc/power8-pmu-insn-cnt.c.inc | 213 +++++++++++++++++++++++++++
 target/ppc/power8-pmu.c              |  60 +-------
 target/ppc/translate.c               |  44 +-----
 4 files changed, 220 insertions(+), 99 deletions(-)
 create mode 100644 target/ppc/power8-pmu-insn-cnt.c.inc

-- 
2.33.1