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Diffstat (limited to 'drivers/gpu/drm/i915/intel_pcode.h')
-rw-r--r--drivers/gpu/drm/i915/intel_pcode.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pcode.h b/drivers/gpu/drm/i915/intel_pcode.h
new file mode 100644
index 000000000..8d2198e29
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_pcode.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2013-2021 Intel Corporation
+ */
+
+#ifndef _INTEL_PCODE_H_
+#define _INTEL_PCODE_H_
+
+#include <linux/types.h>
+
+struct intel_uncore;
+
+int snb_pcode_read(struct intel_uncore *uncore, u32 mbox, u32 *val, u32 *val1);
+int snb_pcode_write_timeout(struct intel_uncore *uncore, u32 mbox, u32 val,
+ int fast_timeout_us, int slow_timeout_ms);
+#define snb_pcode_write(uncore, mbox, val) \
+ snb_pcode_write_timeout(uncore, mbox, val, 500, 0)
+
+int skl_pcode_request(struct intel_uncore *uncore, u32 mbox, u32 request,
+ u32 reply_mask, u32 reply, int timeout_base_ms);
+
+int intel_pcode_init(struct intel_uncore *uncore);
+
+/*
+ * Helpers for dGfx PCODE mailbox command formatting
+ */
+int snb_pcode_read_p(struct intel_uncore *uncore, u32 mbcmd, u32 p1, u32 p2, u32 *val);
+int snb_pcode_write_p(struct intel_uncore *uncore, u32 mbcmd, u32 p1, u32 p2, u32 val);
+
+#endif /* _INTEL_PCODE_H */