From: Prathap Kumar Valsan <prathap.kumar.val...@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.val...@intel.com>
Acked-by: Matthew Brost <matthew.br...@intel.com>
Singed-off-by: Fei Yang <fei.y...@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
