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path: root/drivers/gpu/drm/i915/intel_wopcm.h
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_wopcm.h')
-rw-r--r--drivers/gpu/drm/i915/intel_wopcm.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_wopcm.h b/drivers/gpu/drm/i915/intel_wopcm.h
index 6298910a384c..114401971520 100644
--- a/drivers/gpu/drm/i915/intel_wopcm.h
+++ b/drivers/gpu/drm/i915/intel_wopcm.h
@@ -24,6 +24,21 @@ struct intel_wopcm {
} guc;
};
+/**
+ * intel_wopcm_guc_size()
+ * @wopcm: intel_wopcm structure
+ *
+ * Returns size of the WOPCM shadowed region.
+ *
+ * Returns:
+ * 0 if GuC is not present or not in use.
+ * Otherwise, the GuC WOPCM size.
+ */
+static inline u32 intel_wopcm_guc_size(struct intel_wopcm *wopcm)
+{
+ return wopcm->guc.size;
+}
+
void intel_wopcm_init_early(struct intel_wopcm *wopcm);
int intel_wopcm_init(struct intel_wopcm *wopcm);
int intel_wopcm_init_hw(struct intel_wopcm *wopcm);