[PATCH 0/8] Enable triggered perf query for Xe_HP

[Umesh Nerlige Ramappa]

+ Joonas

On Tue, Aug 03, 2021 at 01:13:41PM -0700, Umesh Nerlige Ramappa wrote:
>This is a revival of the patch series to support triggered perf query reports
>from here - https://patchwork.freedesktop.org/series/83831/
>
>The patches were not pushed earlier because corresponding UMD changes were
>missing. This revival addresses UMD changes in GPUvis for this series. GPUvis
>uses the perf library in igt-gpu-tools. Changes to the library are here -
>https://patchwork.freedesktop.org/series/93355/
>
>GPUvis changes will be posted as a PR once the above library and kernel changes
>are pushed.
>
>Summary of the feature:
>
>Current platforms provide MI_REPORT_PERF_COUNT to query a snapshot of perf
>counters from a batch. This mechanism does not have consistent support on all
>engines for newer platforms. To support perf query, all new platforms use a
>mechanism to trigger OA report snapshots into the OA buffer by writing to a HW
>register from a batch. To lookup this report in the OA buffer quickly, the OA
>buffer is mmapped into the user space.
>
>This series implements the new query mechanism.
>
>Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa at intel.com>
>
>Chris Wilson (3):
>  drm/i915/gt: Refactor _wa_add to reuse wa_index and wa_list_grow
>  drm/i915/gt: Check for conflicting RING_NONPRIV
>  drm/i915/gt: Enable dynamic adjustment of RING_NONPRIV
>
>Piotr Maciejewski (1):
>  drm/i915/perf: Ensure observation logic is not clock gated
>
>Umesh Nerlige Ramappa (4):
>  drm/i915/gt: Lock intel_engine_apply_whitelist with uncore->lock
>  drm/i915/perf: Whitelist OA report trigger registers
>  drm/i915/perf: Whitelist OA counter and buffer registers
>  drm/i915/perf: Map OA buffer to user space for gen12 performance query
>
> drivers/gpu/drm/i915/gem/i915_gem_mman.c      |   2 +-
> drivers/gpu/drm/i915/gem/i915_gem_mman.h      |   2 +
> drivers/gpu/drm/i915/gt/intel_workarounds.c   | 269 +++++++++++++-----
> drivers/gpu/drm/i915/gt/intel_workarounds.h   |   7 +
> .../gpu/drm/i915/gt/selftest_workarounds.c    | 237 +++++++++++++++
> drivers/gpu/drm/i915/i915_perf.c              | 228 ++++++++++++++-
> drivers/gpu/drm/i915/i915_perf_types.h        |   8 +
> drivers/gpu/drm/i915/i915_reg.h               |  30 +-
> include/uapi/drm/i915_drm.h                   |  33 +++
> 9 files changed, 728 insertions(+), 88 deletions(-)
>
>-- 
>2.20.1
>