[Intel-gfx] [PATCH 2/4] drm/i915/xehpsdv: Define GuC Based full TLB invalidation routine

[fei.yang@intel.com]

From: Prathap Kumar Valsan <prathap.kumar.valsan@intel.com>

The GuC firmware has defined the interface for TLB invalidation, This
patch makes use of the interface.

Signed-off-by: Prathap Kumar Valsan <prathap.kumar.valsan@intel.com>
Acked-by: Matthew Brost <matthew.brost@intel.com>
Singed-off-by: Fei Yang <fei.yang@intel.com>
---
 .../gpu/drm/i915/gt/uc/abi/guc_actions_abi.h  |  1 +
 drivers/gpu/drm/i915/gt/uc/intel_guc.c        | 20 +++++++++++++++++++
 drivers/gpu/drm/i915/gt/uc/intel_guc.h        |  2 ++
 3 files changed, 23 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
index 111e740105ee..a45e8225a17d 100644
--- a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
+++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
@@ -188,6 +188,7 @@ enum intel_guc_state_capture_event_status {
 #define INTEL_GUC_TLB_INVAL_FLUSH_CACHE (1 << 31)
 
 enum intel_guc_tlb_invalidation_type {
+	INTEL_GUC_TLB_INVAL_FULL = 0x0,
 	INTEL_GUC_TLB_INVAL_GUC = 0x3,
 };
 
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
index 6bef7adf933d..925b6c9af491 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
@@ -937,6 +937,26 @@ static int guc_send_invalidate_tlb(struct intel_guc *guc, u32 *action, u32 size)
 	return err;
 }
 
+ /* Full TLB invalidation */
+int intel_guc_invalidate_tlb_full(struct intel_guc *guc,
+				  enum intel_guc_tlb_inval_mode mode)
+{
+	u32 action[] = {
+		INTEL_GUC_ACTION_TLB_INVALIDATION,
+		0,
+		INTEL_GUC_TLB_INVAL_FULL << INTEL_GUC_TLB_INVAL_TYPE_SHIFT |
+			mode << INTEL_GUC_TLB_INVAL_MODE_SHIFT |
+			INTEL_GUC_TLB_INVAL_FLUSH_CACHE,
+	};
+
+	if (!INTEL_GUC_SUPPORTS_TLB_INVALIDATION(guc)) {
+		DRM_ERROR("Tlb invalidation: Operation not supported in this platform!\n");
+		return 0;
+	}
+
+	return guc_send_invalidate_tlb(guc, action, ARRAY_SIZE(action));
+}
+
 /*
  * Guc TLB Invalidation: Invalidate the TLB's of GuC itself.
  */
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h
index ed802ae24368..421cf33168d2 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h
@@ -377,6 +377,8 @@ int intel_guc_allocate_and_map_vma(struct intel_guc *guc, u32 size,
 int intel_guc_self_cfg32(struct intel_guc *guc, u16 key, u32 value);
 int intel_guc_self_cfg64(struct intel_guc *guc, u16 key, u64 value);
 
+int intel_guc_invalidate_tlb_full(struct intel_guc *guc,
+				  enum intel_guc_tlb_inval_mode mode);
 int intel_guc_invalidate_tlb_guc(struct intel_guc *guc,
 				 enum intel_guc_tlb_inval_mode mode);
 
-- 
2.25.1