1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dmc.h b/drivers/gpu/drm/i915/display/intel_dmc.h
new file mode 100644
index 000000000000..4c22f567b61b
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_dmc.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef __INTEL_DMC_H__
+#define __INTEL_DMC_H__
+
+#include "i915_reg.h"
+#include "intel_wakeref.h"
+#include <linux/workqueue.h>
+
+struct drm_i915_private;
+
+#define DMC_VERSION(major, minor)	((major) << 16 | (minor))
+#define DMC_VERSION_MAJOR(version)	((version) >> 16)
+#define DMC_VERSION_MINOR(version)	((version) & 0xffff)
+
+struct intel_dmc {
+	struct work_struct work;
+	const char *fw_path;
+	u32 required_version;
+	u32 max_fw_size; /* bytes */
+	u32 *dmc_payload;
+	u32 dmc_fw_size; /* dwords */
+	u32 version;
+	u32 mmio_count;
+	i915_reg_t mmioaddr[20];
+	u32 mmiodata[20];
+	u32 dc_state;
+	u32 target_dc_state;
+	u32 allowed_dc_mask;
+	intel_wakeref_t wakeref;
+};
+
+void intel_dmc_ucode_init(struct drm_i915_private *i915);
+void intel_dmc_load_program(struct drm_i915_private *i915);
+void intel_dmc_ucode_fini(struct drm_i915_private *i915);
+void intel_dmc_ucode_suspend(struct drm_i915_private *i915);
+void intel_dmc_ucode_resume(struct drm_i915_private *i915);
+bool intel_dmc_has_payload(struct drm_i915_private *i915);
+
+#endif /* __INTEL_DMC_H__ */