drm/amdgpu/nbio: switch to amdgpu_nbio_ras_late_init helper function

amdgpu_nbio_ras_late_init is used to init nbio specfic
ras debugfs/sysfs node and nbio specific interrupt handler.
It can be shared among nbio generations

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/Makefile

@@ -54,7 +54,8 @@ amdgpu-y += amdgpu_device.o amdgpu_kms.o \
 	amdgpu_gtt_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_mmhub.o amdgpu_xgmi.o amdgpu_csa.o amdgpu_ras.o amdgpu_vm_cpu.o \
-	amdgpu_vm_sdma.o amdgpu_pmu.o amdgpu_discovery.o amdgpu_ras_eeprom.o smu_v11_0_i2c.o
+	amdgpu_vm_sdma.o amdgpu_pmu.o amdgpu_discovery.o amdgpu_ras_eeprom.o amdgpu_nbio.o \
+	smu_v11_0_i2c.o
 
 amdgpu-$(CONFIG_PERF_EVENTS) += amdgpu_pmu.o
 

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

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2019  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_nbio_ras_late_init(struct amdgpu_device *adev)
+{
+	int r;
+	struct ras_ih_if ih_info = {
+		.cb = NULL,
+	};
+	struct ras_fs_if fs_info = {
+		.sysfs_name = "pcie_bif_err_count",
+		.debugfs_name = "pcie_bif_err_inject",
+	};
+
+	if (!adev->nbio.ras_if) {
+		adev->nbio.ras_if = kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
+		if (!adev->nbio.ras_if)
+			return -ENOMEM;
+		adev->nbio.ras_if->block = AMDGPU_RAS_BLOCK__PCIE_BIF;
+		adev->nbio.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
+		adev->nbio.ras_if->sub_block_index = 0;
+		strcpy(adev->nbio.ras_if->name, "pcie_bif");
+	}
+	ih_info.head = fs_info.head = *adev->nbio.ras_if;
+	r = amdgpu_ras_late_init(adev, adev->nbio.ras_if,
+				 &fs_info, &ih_info);
+	if (r)
+		goto free;
+
+	if (amdgpu_ras_is_supported(adev, adev->nbio.ras_if->block)) {
+		r = amdgpu_irq_get(adev, &adev->nbio.ras_controller_irq, 0);
+		if (r)
+			goto late_fini;
+		r = amdgpu_irq_get(adev, &adev->nbio.ras_err_event_athub_irq, 0);
+		if (r)
+			goto late_fini;
+	} else {
+		r = 0;
+		goto free;
+	}
+
+	return 0;
+late_fini:
+	amdgpu_ras_late_fini(adev, adev->nbio.ras_if, &ih_info);
+free:
+	kfree(adev->nbio.ras_if);
+	adev->nbio.ras_if = NULL;
+	return r;
+}

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

@@ -92,4 +92,6 @@ struct amdgpu_nbio {
 	const struct amdgpu_nbio_funcs *funcs;
 };
 
+int amdgpu_nbio_ras_late_init(struct amdgpu_device *adev);
+
 #endif

drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c

@@ -474,53 +474,6 @@ static int nbio_v7_4_init_ras_err_event_athub_interrupt (struct amdgpu_device *a
 	return 0;
 }
 
-static int nbio_v7_4_ras_late_init(struct amdgpu_device *adev)
-{
-	int r;
-	struct ras_ih_if ih_info = {
-		.cb = NULL,
-	};
-	struct ras_fs_if fs_info = {
-		.sysfs_name = "pcie_bif_err_count",
-		.debugfs_name = "pcie_bif_err_inject",
-	};
-
-	if (!adev->nbio.ras_if) {
-		adev->nbio.ras_if = kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
-		if (!adev->nbio.ras_if)
-			return -ENOMEM;
-		adev->nbio.ras_if->block = AMDGPU_RAS_BLOCK__PCIE_BIF;
-		adev->nbio.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
-		adev->nbio.ras_if->sub_block_index = 0;
-		strcpy(adev->nbio.ras_if->name, "pcie_bif");
-	}
-	ih_info.head = fs_info.head = *adev->nbio.ras_if;
-	r = amdgpu_ras_late_init(adev, adev->nbio.ras_if,
-				 &fs_info, &ih_info);
-	if (r)
-		goto free;
-
-	if (amdgpu_ras_is_supported(adev, adev->nbio.ras_if->block)) {
-		r = amdgpu_irq_get(adev, &adev->nbio.ras_controller_irq, 0);
-		if (r)
-			goto late_fini;
-		r = amdgpu_irq_get(adev, &adev->nbio.ras_err_event_athub_irq, 0);
-		if (r)
-			goto late_fini;
-	} else {
-		r = 0;
-		goto free;
-	}
-
-	return 0;
-late_fini:
-	amdgpu_ras_late_fini(adev, adev->nbio.ras_if, &ih_info);
-free:
-	kfree(adev->nbio.ras_if);
-	adev->nbio.ras_if = NULL;
-	return r;
-}
-
 const struct amdgpu_nbio_funcs nbio_v7_4_funcs = {
 	.get_hdp_flush_req_offset = nbio_v7_4_get_hdp_flush_req_offset,
 	.get_hdp_flush_done_offset = nbio_v7_4_get_hdp_flush_done_offset,
@@ -546,5 +499,5 @@ const struct amdgpu_nbio_funcs nbio_v7_4_funcs = {
 	.handle_ras_err_event_athub_intr_no_bifring = nbio_v7_4_handle_ras_err_event_athub_intr_no_bifring,
 	.init_ras_controller_interrupt = nbio_v7_4_init_ras_controller_interrupt,
 	.init_ras_err_event_athub_interrupt = nbio_v7_4_init_ras_err_event_athub_interrupt,
-	.ras_late_init = nbio_v7_4_ras_late_init,
+	.ras_late_init = amdgpu_nbio_ras_late_init,
 };