Initialize mmhub ras block only when mmhub ip block
supports ras features. Driver queries ras capabilities
after early_init, ras block init needs to be moved to
sw_init.

Signed-off-by: Hawking Zhang <hawking.zh...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/Makefile       |  2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c   |  5 +++
 drivers/gpu/drm/amd/amdgpu/amdgpu_mmhub.c | 46 +++++++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_mmhub.h |  2 +
 drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c     |  9 -----
 5 files changed, 54 insertions(+), 10 deletions(-)
 create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_mmhub.c

diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile 
b/drivers/gpu/drm/amd/amdgpu/Makefile
index d4dfd48451ce..00c33ce38761 100644
--- a/drivers/gpu/drm/amd/amdgpu/Makefile
+++ b/drivers/gpu/drm/amd/amdgpu/Makefile
@@ -54,7 +54,7 @@ amdgpu-y += amdgpu_device.o amdgpu_kms.o \
        amdgpu_ucode.o amdgpu_bo_list.o amdgpu_ctx.o amdgpu_sync.o \
        amdgpu_gtt_mgr.o amdgpu_preempt_mgr.o amdgpu_vram_mgr.o amdgpu_virt.o \
        amdgpu_atomfirmware.o amdgpu_vf_error.o amdgpu_sched.o \
-       amdgpu_debugfs.o amdgpu_ids.o amdgpu_gmc.o \
+       amdgpu_debugfs.o amdgpu_ids.o amdgpu_gmc.o amdgpu_mmhub.o \
        amdgpu_xgmi.o amdgpu_csa.o amdgpu_ras.o amdgpu_vm_cpu.o \
        amdgpu_vm_sdma.o amdgpu_discovery.o amdgpu_ras_eeprom.o amdgpu_nbio.o \
        amdgpu_umc.o smu_v11_0_i2c.o amdgpu_fru_eeprom.o amdgpu_rap.o \
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
index c764b57957e8..a15bc513dd67 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
@@ -455,6 +455,11 @@ int amdgpu_gmc_ras_sw_init(struct amdgpu_device *adev)
        if (r)
                return r;
 
+       /* mmhub ras block */
+       r = amdgpu_mmhub_ras_sw_init(adev);
+       if (r)
+               return r;
+
        if (!adev->gmc.xgmi.connected_to_cpu) {
                adev->gmc.xgmi.ras = &xgmi_ras;
                amdgpu_ras_register_ras_block(adev, 
&adev->gmc.xgmi.ras->ras_block);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mmhub.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_mmhub.c
new file mode 100644
index 000000000000..0f6b1021fef3
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mmhub.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2023  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) 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 "amdgpu_ras.h"
+
+int amdgpu_mmhub_ras_sw_init(struct amdgpu_device *adev)
+{
+       int err;
+       struct amdgpu_mmhub_ras *ras;
+
+       if (!adev->mmhub.ras)
+               return 0;
+
+       ras = adev->mmhub.ras;
+       err = amdgpu_ras_register_ras_block(adev, &ras->ras_block);
+       if (err) {
+               dev_err(adev->dev, "Failed to register mmhub ras block!\n");
+               return err;
+       }
+
+       strcpy(ras->ras_block.ras_comm.name, "mmhub");
+       ras->ras_block.ras_comm.block = AMDGPU_RAS_BLOCK__MMHUB;
+       ras->ras_block.ras_comm.type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
+       adev->mmhub.ras_if = &ras->ras_block.ras_comm;
+
+       /* mmhub ras follows amdgpu_ras_block_late_init_default for late init */
+       return 0;
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mmhub.h 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_mmhub.h
index 93430d3823c9..d21bb6dae56e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mmhub.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mmhub.h
@@ -48,5 +48,7 @@ struct amdgpu_mmhub {
        struct amdgpu_mmhub_ras  *ras;
 };
 
+int amdgpu_mmhub_ras_sw_init(struct amdgpu_device *adev);
+
 #endif
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c 
b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index e9b6599e790c..b3bb70210122 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -1351,15 +1351,6 @@ static void gmc_v9_0_set_mmhub_ras_funcs(struct 
amdgpu_device *adev)
                /* mmhub ras is not available */
                break;
        }
-
-       if (adev->mmhub.ras) {
-               amdgpu_ras_register_ras_block(adev, 
&adev->mmhub.ras->ras_block);
-
-               strcpy(adev->mmhub.ras->ras_block.ras_comm.name, "mmhub");
-               adev->mmhub.ras->ras_block.ras_comm.block = 
AMDGPU_RAS_BLOCK__MMHUB;
-               adev->mmhub.ras->ras_block.ras_comm.type = 
AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
-               adev->mmhub.ras_if = &adev->mmhub.ras->ras_block.ras_comm;
-       }
 }
 
 static void gmc_v9_0_set_gfxhub_funcs(struct amdgpu_device *adev)
-- 
2.17.1

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