linux-kernel - [PATCH v4 00/10] powerpc/watchpoint: Enable 2nd DAWR on baremetal and powervm

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Date:   Fri, 17 Jul 2020 09:39:48 +0530
From:   Ravi Bangoria <ravi.bangoria@...ux.ibm.com>
To:     mpe@...erman.id.au, mikey@...ling.org
Cc:     ravi.bangoria@...ux.ibm.com, apopple@...ux.ibm.com,
        paulus@...ba.org, npiggin@...il.com, christophe.leroy@....fr,
        naveen.n.rao@...ux.vnet.ibm.com, peterz@...radead.org,
        jolsa@...nel.org, oleg@...hat.com, fweisbec@...il.com,
        mingo@...nel.org, pedromfc@...ibm.com, miltonm@...ibm.com,
        jniethe5@...il.com, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v4 00/10] powerpc/watchpoint: Enable 2nd DAWR on baremetal and powervm

Last series[1] was to add basic infrastructure support for more than
one watchpoint on Book3S powerpc. This series actually enables the 2nd 
DAWR for baremetal and powervm. Kvm guest is still not supported.

v3: https://lore.kernel.org/lkml/20200708045046.135702-1-ravi.bangoria@linux.ibm.com

v3->v4:
 - v3 patch #2 is split into two v4 patches: #2 and #3
 - Few other minor neats suggested by Jordan Niethe
 - Rebased to powerpc/next

[1]: https://lore.kernel.org/linuxppc-dev/20200514111741.97993-1-ravi.bangoria@linux.ibm.com/

Ravi Bangoria (10):
  powerpc/watchpoint: Fix 512 byte boundary limit
  powerpc/watchpoint: Fix DAWR exception constraint
  powerpc/watchpoint: Fix DAWR exception for CACHEOP
  powerpc/watchpoint: Enable watchpoint functionality on power10 guest
  powerpc/dt_cpu_ftrs: Add feature for 2nd DAWR
  powerpc/watchpoint: Set CPU_FTR_DAWR1 based on pa-features bit
  powerpc/watchpoint: Rename current H_SET_MODE DAWR macro
  powerpc/watchpoint: Guest support for 2nd DAWR hcall
  powerpc/watchpoint: Return available watchpoints dynamically
  powerpc/watchpoint: Remove 512 byte boundary

 arch/powerpc/include/asm/cputable.h       | 13 ++-
 arch/powerpc/include/asm/hvcall.h         |  3 +-
 arch/powerpc/include/asm/hw_breakpoint.h  |  5 +-
 arch/powerpc/include/asm/machdep.h        |  2 +-
 arch/powerpc/include/asm/plpar_wrappers.h |  7 +-
 arch/powerpc/kernel/dawr.c                |  2 +-
 arch/powerpc/kernel/dt_cpu_ftrs.c         |  7 ++
 arch/powerpc/kernel/hw_breakpoint.c       | 98 +++++++++++++++--------
 arch/powerpc/kernel/prom.c                |  2 +
 arch/powerpc/kvm/book3s_hv.c              |  2 +-
 arch/powerpc/platforms/pseries/setup.c    |  7 +-
 11 files changed, 101 insertions(+), 47 deletions(-)

-- 
2.26.2