Messages in this thread | | | From | Ravi Bangoria <> | Subject | [PATCH v5 00/10] powerpc/watchpoint: Enable 2nd DAWR on baremetal and powervm | Date | Thu, 23 Jul 2020 14:38:03 +0530 |
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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.
v4: https://lore.kernel.org/r/20200717040958.70561-1-ravi.bangoria@linux.ibm.com
v4->v5: - Using hardcoded values instead of macros HBP_NUM_ONE and HBP_NUM_TWO. Comment above HBP_NUM_MAX changed to explain it's value. - Included CPU_FTR_DAWR1 into CPU_FTRS_POWER10 - Using generic function feat_enable() instead of feat_enable_debug_facilities_v31() to enable CPU_FTR_DAWR1. - ISA still includes 512B boundary in match criteria. But that's a documentation mistake. Mentioned about this in the last patch. - Rebased to powerpc/next - Added Jordan's Reviewed-by/Tested-by tags
[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 | 8 +- arch/powerpc/include/asm/hvcall.h | 3 +- arch/powerpc/include/asm/hw_breakpoint.h | 4 +- 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 | 1 + 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, 91 insertions(+), 45 deletions(-)
-- 2.26.2
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