[PATCH v2 2/4] drm/i915/xehp: Add register for compute engine's MMIO-based TLB invalidation

[Matt Roper]

Compute engines have a separate register that the driver should use to
perform MMIO-based TLB invalidation.

Note that the term "context" in this register's bspec description is
used to refer to the engine instance (in the same way "context" is used
on bspec 46167).

Bspec: 43930
Cc: Prathap Kumar Valsan <prathap.kumar.val...@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursu...@linux.intel.com>
Signed-off-by: Matt Roper <matthew.d.ro...@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_gt.c      | 1 +
 drivers/gpu/drm/i915/gt/intel_gt_regs.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c 
b/drivers/gpu/drm/i915/gt/intel_gt.c
index 92394f13b42f..53307ca0eed0 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -1175,6 +1175,7 @@ void intel_gt_invalidate_tlbs(struct intel_gt *gt)
                [VIDEO_DECODE_CLASS]            = GEN12_VD_TLB_INV_CR,
                [VIDEO_ENHANCEMENT_CLASS]       = GEN12_VE_TLB_INV_CR,
                [COPY_ENGINE_CLASS]             = GEN12_BLT_TLB_INV_CR,
+               [COMPUTE_CLASS]                 = GEN12_COMPCTX_TLB_INV_CR,
        };
        struct drm_i915_private *i915 = gt->i915;
        struct intel_uncore *uncore = gt->uncore;
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h 
b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
index a39718a40cc3..a0a49c16babd 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
@@ -1007,6 +1007,7 @@
 #define GEN12_VD_TLB_INV_CR                    _MMIO(0xcedc)
 #define GEN12_VE_TLB_INV_CR                    _MMIO(0xcee0)
 #define GEN12_BLT_TLB_INV_CR                   _MMIO(0xcee4)
+#define GEN12_COMPCTX_TLB_INV_CR               _MMIO(0xcf04)
 
 #define GEN12_MERT_MOD_CTRL                    _MMIO(0xcf28)
 #define RENDER_MOD_CTRL                                _MMIO(0xcf2c)
-- 
2.35.1