drm/amdgpu: add amdgpu_smuio structure

Add amdgpu_smuio structure in amdgpu_device to
provide various callback functions to support
smuio ip funcitonality

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: John Clements <john.clements@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_smuio.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_smuio.h
new file mode 100644
index 000000000000..03009157aec8
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_smuio.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+#ifndef __AMDGPU_SMUIO_H__
+#define __AMDGPU_SMUIO_H__
+
+struct amdgpu_smuio_funcs {
+	u32 (*get_rom_index_offset)(struct amdgpu_device *adev);
+	u32 (*get_rom_data_offset)(struct amdgpu_device *adev);
+	void (*update_rom_clock_gating)(struct amdgpu_device *adev, bool enable);
+	void (*get_clock_gating_state)(struct amdgpu_device *adev, u32 *flags);
+};
+
+struct amdgpu_smuio {
+	const struct amdgpu_smuio_funcs		*funcs;
+};
+
+#endif /* __AMDGPU_SMUIO_H__ */