[Intel-gfx] [PATCH 0/6] Allow privileged user to map the OA buffer

Umesh Nerlige Ramappa
2020-10-02T23:28:04Z

Allow user to map the OA buffer and also trigger reports into it.

CI fixes:
v1: Fixes a memory corruption due to addition of OA whitelist on demand.
v2: Spinlock when applying whitelist
v3: Use uncore->lock. Do not check for wal->count when applying whitelist.
v4: Refresh and rerun with newly added test (forked access).
v5:
- Split patches into smaller units
- Grow the wal->list only for the engine that needs it.
- Bring back the wal->count check when applying whitelist during resume

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Test-with: 20201002013957.16456-1-umesh.nerlige.ramappa@intel.com

Piotr Maciejewski (1):
drm/i915/perf: Ensure observation logic is not clock gated

Umesh Nerlige Ramappa (5):
drm/i915/gt: Lock intel_engine_apply_whitelist with uncore->lock
drm/i915/perf: Whitelist OA report trigger registers
drm/i915/gt: Refactor _wa_add to reuse wa_index and wa_list_grow
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 | 212 ++++++++++++----
drivers/gpu/drm/i915/gt/intel_workarounds.h | 7 +
.../gpu/drm/i915/gt/intel_workarounds_types.h | 5 +
drivers/gpu/drm/i915/i915_perf.c | 228 +++++++++++++++++-
drivers/gpu/drm/i915/i915_perf_types.h | 8 +
drivers/gpu/drm/i915/i915_reg.h | 10 +
include/uapi/drm/i915_drm.h | 33 +++
9 files changed, 455 insertions(+), 52 deletions(-)