From: Yong Zhao <Yong.Zhao@amd.com>
Date: Wed, 20 Sep 2017 18:10:19 -0400
Subject: drm/amdkfd: Reuse CHIP_* from amdgpu v2
Git-commit: e596b90338126d08a8d90f08e79bb644b8c9f2b6
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

There are already CHIP_* definitions under amd_shared.h file on amdgpu
side, so KFD should reuse them rather than defining new ones.

Using enum for asic type requires default cases on switch statements
to prevent compiler warnings. WARN on unsupported ASICs. It should never
get there because KFD should not be initialized on unsupported devices.

v2: Replace BUG() with WARN and error return

Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c |    4 ++++
 drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c         |   18 ++++++++++++------
 drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c          |    3 +++
 drivers/gpu/drm/amd/amdkfd/kfd_priv.h                 |    9 +++------
 4 files changed, 22 insertions(+), 12 deletions(-)

--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -1130,6 +1130,10 @@ struct device_queue_manager *device_queu
 	case CHIP_KAVERI:
 		device_queue_manager_init_cik(&dqm->ops_asic_specific);
 		break;
+	default:
+		WARN(1, "Unexpected ASIC family %u",
+		     dev->device_info->asic_family);
+		goto out_free;
 	}
 
 	if (!dqm->ops.initialize(dqm))
--- a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
@@ -303,14 +303,20 @@ struct kernel_queue *kernel_queue_init(s
 	case CHIP_KAVERI:
 		kernel_queue_init_cik(&kq->ops_asic_specific);
 		break;
+	default:
+		WARN(1, "Unexpected ASIC family %u",
+		     dev->device_info->asic_family);
+		goto out_free;
 	}
 
-	if (!kq->ops.initialize(kq, dev, type, KFD_KERNEL_QUEUE_SIZE)) {
-		pr_err("Failed to init kernel queue\n");
-		kfree(kq);
-		return NULL;
-	}
-	return kq;
+	if (kq->ops.initialize(kq, dev, type, KFD_KERNEL_QUEUE_SIZE))
+		return kq;
+
+	pr_err("Failed to init kernel queue\n");
+
+out_free:
+	kfree(kq);
+	return NULL;
 }
 
 void kernel_queue_uninit(struct kernel_queue *kq)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c
@@ -31,6 +31,9 @@ struct mqd_manager *mqd_manager_init(enu
 		return mqd_manager_init_cik(type, dev);
 	case CHIP_CARRIZO:
 		return mqd_manager_init_vi(type, dev);
+	default:
+		WARN(1, "Unexpected ASIC family %u",
+		     dev->device_info->asic_family);
 	}
 
 	return NULL;
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -33,6 +33,8 @@
 #include <linux/kfd_ioctl.h>
 #include <kgd_kfd_interface.h>
 
+#include "amd_shared.h"
+
 #define KFD_SYSFS_FILE_MODE 0444
 
 #define KFD_MMAP_DOORBELL_MASK 0x8000000000000
@@ -112,11 +114,6 @@ enum cache_policy {
 	cache_policy_noncoherent
 };
 
-enum asic_family_type {
-	CHIP_KAVERI = 0,
-	CHIP_CARRIZO
-};
-
 struct kfd_event_interrupt_class {
 	bool (*interrupt_isr)(struct kfd_dev *dev,
 				const uint32_t *ih_ring_entry);
@@ -125,7 +122,7 @@ struct kfd_event_interrupt_class {
 };
 
 struct kfd_device_info {
-	unsigned int asic_family;
+	enum amd_asic_type asic_family;
 	const struct kfd_event_interrupt_class *event_interrupt_class;
 	unsigned int max_pasid_bits;
 	unsigned int max_no_of_hqd;