[PATCH 20/21] drm/i915/guc: describe enum intel_guc_tlb_invalidation_type

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Add a description for intel_guc_tlb_invalidation_type enum.

Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
---

See [PATCH 00/21] at: https://lore.kernel.org/all/cover.1657703926.git.mchehab@xxxxxxxxxx/

 drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h | 12 ++++++++++++
 1 file changed, 12 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 5c019856a269..e97065c62d28 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
@@ -187,6 +187,18 @@ enum intel_guc_state_capture_event_status {
 /* Flush PPC or SMRO caches along with TLB invalidation request */
 #define INTEL_GUC_TLB_INVAL_FLUSH_CACHE (1 << 31)
 
+/**
+ * enum intel_guc_tlb_invalidation_type - type of TLB cache invalidation
+ *
+ * @INTEL_GUC_TLB_INVAL_FULL:
+ *	Global TLB invalidation
+ * @INTEL_GUC_TLB_INVAL_PAGE_SELECTIVE:
+ *	Page-selective TLB cache invalidation
+ * @INTEL_GUC_TLB_INVAL_PAGE_SELECTIVE_CTX:
+ *	Context-selective TLB cache invalidation
+ * @INTEL_GUC_TLB_INVAL_GUC:
+ *	Invalidate TLB on GuC itself
+ */
 enum intel_guc_tlb_invalidation_type {
 	INTEL_GUC_TLB_INVAL_FULL = 0x0,
 	INTEL_GUC_TLB_INVAL_PAGE_SELECTIVE = 0x1,
-- 
2.36.1




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