drm/amd/amdgpu: imu fw loading support

support imu related function for gfx v12.
Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/Makefile

@@ -168,7 +168,8 @@ amdgpu-y += \
 	gfx_v11_0.o \
 	gfx_v11_0_3.o \
 	imu_v11_0_3.o \
-	gfx_v12_0.o
+	gfx_v12_0.o \
+	imu_v12_0.o
 
 # add async DMA block
 amdgpu-y += \

drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c

@@ -30,6 +30,7 @@
 #include "amdgpu_psp.h"
 #include "amdgpu_smu.h"
 #include "amdgpu_atomfirmware.h"
+#include "imu_v12_0.h"
 #include "soc24.h"
 #include "nvd.h"
 
@@ -4523,8 +4524,7 @@ static void gfx_v12_0_set_imu_funcs(struct amdgpu_device *adev)
 	else
 		adev->gfx.imu.mode = DEBUG_MODE;
 
-	/* TODO */
-	//adev->gfx.imu.funcs = &gfx_v12_0_imu_funcs;
+	adev->gfx.imu.funcs = &gfx_v12_0_imu_funcs;
 }
 
 static void gfx_v12_0_set_rlc_funcs(struct amdgpu_device *adev)

drivers/gpu/drm/amd/amdgpu/imu_v12_0.h

+/*
+ * Copyright 2021 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 __IMU_V12_0_H__
+#define __IMU_V12_0_H__
+
+extern const struct amdgpu_imu_funcs gfx_v12_0_imu_funcs;
+
+#endif
+