[Intel-gfx] [PATCH v4 1/3] drm/i915: Add GuC TLB Invalidation pci tags

[Jonathan Cavitt]

Add device info tags for if GuC TLB Invalidation is enabled.  Since GuC
based TLB invalidation is only strictly necessary for MTL presently,
only enable GuC based TLB invalidations for MTL.

Signed-off-by: Jonathan Cavitt <jonathan.cavitt at intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h          | 1 +
 drivers/gpu/drm/i915/i915_pci.c          | 1 +
 drivers/gpu/drm/i915/intel_device_info.h | 3 ++-
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index b4fa81cab92d7..154f004373a9c 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -821,4 +821,5 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 #define HAS_LMEMBAR_SMEM_STOLEN(i915) (!HAS_LMEM(i915) && \
 				       GRAPHICS_VER_FULL(i915) >= IP_VER(12, 70))
 
+#define HAS_GUC_TLB_INVALIDATION(i915)	(INTEL_INFO(i915)->has_guc_tlb_invalidation)
 #endif
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index df7c261410f79..c3a5d5efb45d1 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -837,6 +837,7 @@ static const struct intel_device_info mtl_info = {
 	.memory_regions = REGION_SMEM | REGION_STOLEN_LMEM,
 	.platform_engine_mask = BIT(RCS0) | BIT(BCS0) | BIT(CCS0),
 	.require_force_probe = 1,
+	.has_guc_tlb_invalidation = 1,
 	MTL_CACHELEVEL,
 };
 
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index 39817490b13fd..ad54db0a22470 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -173,7 +173,8 @@ enum intel_ppgtt_type {
 	func(has_coherent_ggtt); \
 	func(tuning_thread_rr_after_dep); \
 	func(unfenced_needs_alignment); \
-	func(hws_needs_physical);
+	func(hws_needs_physical); \
+	func(has_guc_tlb_invalidation);
 
 struct intel_ip_version {
 	u8 ver;
-- 
2.25.1