[PATCH 07/10] drm/amdkfd: Reuse CHIP_* from amdgpu v2

[Felix Kuehling]

From: Yong Zhao <Yong.Zhao at amd.com>

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 at amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling at amd.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(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index 87f8742..fe0f0de 100644
--- 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_queue_manager_init(struct kfd_dev *dev)
 	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))
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
index a47ca3c..d7ed10e 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
@@ -291,14 +291,20 @@ struct kernel_queue *kernel_queue_init(struct kfd_dev *dev,
 	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)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c
index b1ef136..dfd260e 100644
--- 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(enum KFD_MQD_TYPE type,
 		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;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index 4d989b9..47eee77 100644
--- 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;
-- 
2.7.4