drm/amdgpu: support imu for gfx11

Add support to initialize imu for gfx v11.
IMU is a new power management block for
gfx which manages gfx power.

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>

1 files changed, 51 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_imu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_imu.h
new file mode 100644
index 000000000000..56cf127cdf93
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_imu.h
@@ -0,0 +1,51 @@
+/*
+ * 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 __AMDGPU_IMU_H__
+#define __AMDGPU_IMU_H__
+
+struct amdgpu_imu_funcs {
+    int (*init_microcode)(struct amdgpu_device *adev);
+    int (*load_microcode)(struct amdgpu_device *adev);
+    void (*setup_imu)(struct amdgpu_device *adev);
+    int (*start_imu)(struct amdgpu_device *adev);
+    void (*program_rlc_ram)(struct amdgpu_device *adev);
+};
+
+struct imu_rlc_ram_golden {
+    u32 hwip;
+    u32 instance;
+    u32 segment;
+    u32 reg;
+    u32 data;
+    u32 addr_mask;
+};
+
+#define IMU_RLC_RAM_GOLDEN_VALUE(ip, inst, reg, data, addr_mask) \
+    { ip##_HWIP, inst, reg##_BASE_IDX, reg, data, addr_mask }
+
+struct amdgpu_imu {
+    const struct amdgpu_imu_funcs *funcs;
+};
+
+#endif