drm/i915/perf: Invalidate OA TLB on when closing perf stream
On running several back to back perf capture sessions involving closing and opening the perf stream, invalid OA reports are seen in the beginning of the OA buffer in some sessions. Fix this by invalidating OA TLB when the perf stream is closed or disabled on gen12. Signed-off-by:Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com> Reviewed-by:
Lionel Landwerlin <lionel.g.landwerlin@intel.com> Fixes: 00a7f0d7 ("drm/i915/tgl: Add perf support on TGL") Signed-off-by:
Lionel Landwerlin <lionel.g.landwerlin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200309211057.38575-1-umesh.nerlige.ramappa@intel.com
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