Re: [PATCH v5] drm/i915: Consolidate TLB invalidation flow

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On 16/02/2023 15:41, Matt Roper wrote:
On Thu, Feb 16, 2023 at 09:21:23AM +0000, Tvrtko Ursulin wrote:
From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>

As the logic for selecting the register and corresponsing values grew, the
code become a bit unsightly. Consolidate by storing the required values at
engine init time in the engine itself, and by doing so minimise the amount
of invariant platform and engine checks during each and every TLB
invalidation.

v2:
  * Fail engine probe if TLB invlidations registers are unknown.

v3:
  * Rebase.

v4:
  * Fix handling of GEN8_M2TCR. (Andrzej)

v5:
  * Tidy checkpatch warnings.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Cc: Andrzej Hajda <andrzej.hajda@xxxxxxxxx>
Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
Reviewed-by: Andrzej Hajda <andrzej.hajda@xxxxxxxxx> # v1
Reviewed-by: Matt Roper <matthew.d.roper@xxxxxxxxx> # v3

Reviewed-by: Matt Roper <matthew.d.roper@xxxxxxxxx>

for this version as well.

Thanks Matt, pushed.

Regards,

Tvrtko



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