drm/amdgpu: Add place holder for soc15 asic init on emulation

Add common smu_soc_asic_init function to emulate the sillicon post sequence

Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/Makefile

@@ -63,7 +63,7 @@ amdgpu-$(CONFIG_DRM_AMDGPU_CIK)+= cik.o cik_ih.o kv_smc.o kv_dpm.o \
 amdgpu-$(CONFIG_DRM_AMDGPU_SI)+= si.o gmc_v6_0.o gfx_v6_0.o si_ih.o si_dma.o dce_v6_0.o si_dpm.o si_smc.o
 
 amdgpu-y += \
-	vi.o mxgpu_vi.o nbio_v6_1.o soc15.o mxgpu_ai.o nbio_v7_0.o vega10_reg_init.o
+	vi.o mxgpu_vi.o nbio_v6_1.o soc15.o emu_soc.o mxgpu_ai.o nbio_v7_0.o vega10_reg_init.o
 
 # add GMC block
 amdgpu-y += \

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

@@ -1657,6 +1657,8 @@ void amdgpu_mm_wdoorbell64(struct amdgpu_device *adev, u32 index, u64 v);
 bool amdgpu_device_asic_has_dc_support(enum amd_asic_type asic_type);
 bool amdgpu_device_has_dc_support(struct amdgpu_device *adev);
 
+int emu_soc_asic_init(struct amdgpu_device *adev);
+
 /*
  * Registers read & write functions.
  */

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

@@ -1311,19 +1311,6 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev)
 		}
 		adev->ip_blocks[i].status.sw = true;
 
-		if (amdgpu_emu_mode == 1) {
-			/* Need to do common hw init first on emulation  */
-			if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON) {
-				r = adev->ip_blocks[i].version->funcs->hw_init((void *)adev);
-				if (r) {
-					DRM_ERROR("hw_init of IP block <%s> failed %d\n",
-						adev->ip_blocks[i].version->funcs->name, r);
-					return r;
-				}
-				adev->ip_blocks[i].status.hw = true;
-			}
-		}
-
 		/* need to do gmc hw init early so we can allocate gpu mem */
 		if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) {
 			r = amdgpu_device_vram_scratch_init(adev);
@@ -1902,8 +1889,11 @@ int amdgpu_device_init(struct amdgpu_device *adev,
 	if (runtime)
 		vga_switcheroo_init_domain_pm_ops(adev->dev, &adev->vga_pm_domain);
 
-	if (amdgpu_emu_mode == 1)
+	if (amdgpu_emu_mode == 1) {
+		/* post the asic on emulation mode */
+		emu_soc_asic_init(adev);
 		goto fence_driver_init;
+	}
 
 	/* Read BIOS */
 	if (!amdgpu_get_bios(adev)) {

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

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2018 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.
+ *
+ */
+#include "amdgpu.h"
+#include "soc15.h"
+
+#include "soc15_common.h"
+#include "soc15_hw_ip.h"
+
+int emu_soc_asic_init(struct amdgpu_device *adev)
+{
+	return 0;
+}
+