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| author |   Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2023-02-16 09:21:23 +0000 |
|---|---|---|
| committer | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2023-02-17 10:31:58 +0000 |
| commit | 1008266e31a0cb86cf8ac18eb77047283ae2b800 (patch) | |
| tree | 95c4fd075129b84aa1eadf865d3177c865e74710 /drivers/gpu/drm/i915/gt/intel_engine_types.h | |
| parent | drm/i915: Make kobj_type structures constant (diff) | |
| download | wireguard-linux-1008266e31a0cb86cf8ac18eb77047283ae2b800.tar.xz wireguard-linux-1008266e31a0cb86cf8ac18eb77047283ae2b800.zip | |
drm/i915: Consolidate TLB invalidation flow
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@intel.com>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com> # v1
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230216092123.159085-1-tvrtko.ursulin@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_engine_types.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_engine_types.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h index 4fd54fb8810f..0a071e5da1a8 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_types.h +++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h @@ -341,6 +341,18 @@ struct intel_engine_guc_stats { u64 start_gt_clk; }; +union intel_engine_tlb_inv_reg { + i915_reg_t reg; + i915_mcr_reg_t mcr_reg; +}; + +struct intel_engine_tlb_inv { + bool mcr; + union intel_engine_tlb_inv_reg reg; + u32 request; + u32 done; +}; + struct intel_engine_cs { struct drm_i915_private *i915; struct intel_gt *gt; @@ -372,6 +384,8 @@ struct intel_engine_cs { u32 context_size; u32 mmio_base; + struct intel_engine_tlb_inv tlb_inv; + /* * Some w/a require forcewake to be held (which prevents RC6) while * a particular engine is active. If so, we set fw_domain to which |