[PATCH] drm/amdkfd: Add multiple kgd support

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From: xihazhang <xihanzhang@xxxxxxx>

The current code can only support one kgd instance. We have to
support multiple kgd instances in one system. i.e two amdgpu or two
radeon or one amdgpu + one radeon or more than two kgd instances.

Signed-off-by: Xihan Zhang <xihan.zhang@xxxxxxx>
Signed-off-by: Oded Gabbay <oded.gabbay@xxxxxxx>
---
 drivers/gpu/drm/amd/amdkfd/kfd_chardev.c           |  3 +-
 drivers/gpu/drm/amd/amdkfd/kfd_device.c            | 17 ++++--
 .../gpu/drm/amd/amdkfd/kfd_device_queue_manager.c  | 14 +++--
 drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c          | 17 +++---
 drivers/gpu/drm/amd/amdkfd/kfd_module.c            | 12 +---
 drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c   | 13 +++--
 drivers/gpu/drm/amd/amdkfd/kfd_priv.h              | 12 ++--
 drivers/gpu/drm/amd/amdkfd/kfd_topology.c          | 12 ++--
 drivers/gpu/drm/amd/include/kgd_kfd_interface.h    | 64 +++++++++++-----------
 drivers/gpu/drm/radeon/radeon_kfd.c                | 10 ++--
 10 files changed, 90 insertions(+), 84 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 50fc8ba..19a4fba 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -442,7 +442,8 @@ static int kfd_ioctl_get_clock_counters(struct file *filep,
 		return -EINVAL;
 
 	/* Reading GPU clock counter from KGD */
-	args->gpu_clock_counter = kfd2kgd->get_gpu_clock_counter(dev->kgd);
+	args->gpu_clock_counter =
+		dev->kfd2kgd->get_gpu_clock_counter(dev->kgd);
 
 	/* No access to rdtsc. Using raw monotonic time */
 	getrawmonotonic64(&time);
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 5bc32c2..ca7f2d3 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -94,7 +94,8 @@ static const struct kfd_device_info *lookup_device_info(unsigned short did)
 	return NULL;
 }
 
-struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, struct pci_dev *pdev)
+struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd,
+	struct pci_dev *pdev, const struct kfd2kgd_calls *f2g)
 {
 	struct kfd_dev *kfd;
 
@@ -112,6 +113,11 @@ struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, struct pci_dev *pdev)
 	kfd->device_info = device_info;
 	kfd->pdev = pdev;
 	kfd->init_complete = false;
+	kfd->kfd2kgd = f2g;
+
+	mutex_init(&kfd->doorbell_mutex);
+	memset(&kfd->doorbell_available_index, 0,
+		sizeof(kfd->doorbell_available_index));
 
 	return kfd;
 }
@@ -200,8 +206,9 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
 	/* add another 512KB for all other allocations on gart (HPD, fences) */
 	size += 512 * 1024;
 
-	if (kfd2kgd->init_gtt_mem_allocation(kfd->kgd, size, &kfd->gtt_mem,
-			&kfd->gtt_start_gpu_addr, &kfd->gtt_start_cpu_ptr)) {
+	if (kfd->kfd2kgd->init_gtt_mem_allocation(
+			kfd->kgd, size, &kfd->gtt_mem,
+			&kfd->gtt_start_gpu_addr, &kfd->gtt_start_cpu_ptr)){
 		dev_err(kfd_device,
 			"Could not allocate %d bytes for device (%x:%x)\n",
 			size, kfd->pdev->vendor, kfd->pdev->device);
@@ -270,7 +277,7 @@ device_iommu_pasid_error:
 kfd_topology_add_device_error:
 	kfd_gtt_sa_fini(kfd);
 kfd_gtt_sa_init_error:
-	kfd2kgd->free_gtt_mem(kfd->kgd, kfd->gtt_mem);
+	kfd->kfd2kgd->free_gtt_mem(kfd->kgd, kfd->gtt_mem);
 	dev_err(kfd_device,
 		"device (%x:%x) NOT added due to errors\n",
 		kfd->pdev->vendor, kfd->pdev->device);
@@ -285,7 +292,7 @@ void kgd2kfd_device_exit(struct kfd_dev *kfd)
 		amd_iommu_free_device(kfd->pdev);
 		kfd_topology_remove_device(kfd);
 		kfd_gtt_sa_fini(kfd);
-		kfd2kgd->free_gtt_mem(kfd->kgd, kfd->gtt_mem);
+		kfd->kfd2kgd->free_gtt_mem(kfd->kgd, kfd->gtt_mem);
 	}
 
 	kfree(kfd);
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 be68d58..d717430 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -82,7 +82,8 @@ static inline unsigned int get_pipes_num_cpsch(void)
 void program_sh_mem_settings(struct device_queue_manager *dqm,
 					struct qcm_process_device *qpd)
 {
-	return kfd2kgd->program_sh_mem_settings(dqm->dev->kgd, qpd->vmid,
+	return dqm->dev->kfd2kgd->program_sh_mem_settings(
+						dqm->dev->kgd, qpd->vmid,
 						qpd->sh_mem_config,
 						qpd->sh_mem_ape1_base,
 						qpd->sh_mem_ape1_limit,
@@ -457,9 +458,12 @@ set_pasid_vmid_mapping(struct device_queue_manager *dqm, unsigned int pasid,
 {
 	uint32_t pasid_mapping;
 
-	pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid |
-						ATC_VMID_PASID_MAPPING_VALID;
-	return kfd2kgd->set_pasid_vmid_mapping(dqm->dev->kgd, pasid_mapping,
+	pasid_mapping = (pasid == 0) ? 0 :
+		(uint32_t)pasid |
+		ATC_VMID_PASID_MAPPING_VALID;
+
+	return dqm->dev->kfd2kgd->set_pasid_vmid_mapping(
+						dqm->dev->kgd, pasid_mapping,
 						vmid);
 }
 
@@ -511,7 +515,7 @@ int init_pipelines(struct device_queue_manager *dqm,
 		pipe_hpd_addr = dqm->pipelines_addr + i * CIK_HPD_EOP_BYTES;
 		pr_debug("kfd: pipeline address %llX\n", pipe_hpd_addr);
 		/* = log2(bytes/4)-1 */
-		kfd2kgd->init_pipeline(dqm->dev->kgd, inx,
+		dqm->dev->kfd2kgd->init_pipeline(dqm->dev->kgd, inx,
 				CIK_HPD_EOP_BYTES_LOG2 - 3, pipe_hpd_addr);
 	}
 
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c
index 1a9b355..17e56dc 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c
@@ -32,9 +32,6 @@
  * and that's assures that any user process won't get access to the
  * kernel doorbells page
  */
-static DEFINE_MUTEX(doorbell_mutex);
-static unsigned long doorbell_available_index[
-	DIV_ROUND_UP(KFD_MAX_NUM_OF_QUEUES_PER_PROCESS, BITS_PER_LONG)] = { 0 };
 
 #define KERNEL_DOORBELL_PASID 1
 #define KFD_SIZE_OF_DOORBELL_IN_BYTES 4
@@ -170,12 +167,12 @@ u32 __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd,
 
 	BUG_ON(!kfd || !doorbell_off);
 
-	mutex_lock(&doorbell_mutex);
-	inx = find_first_zero_bit(doorbell_available_index,
+	mutex_lock(&kfd->doorbell_mutex);
+	inx = find_first_zero_bit(kfd->doorbell_available_index,
 					KFD_MAX_NUM_OF_QUEUES_PER_PROCESS);
 
-	__set_bit(inx, doorbell_available_index);
-	mutex_unlock(&doorbell_mutex);
+	__set_bit(inx, kfd->doorbell_available_index);
+	mutex_unlock(&kfd->doorbell_mutex);
 
 	if (inx >= KFD_MAX_NUM_OF_QUEUES_PER_PROCESS)
 		return NULL;
@@ -203,9 +200,9 @@ void kfd_release_kernel_doorbell(struct kfd_dev *kfd, u32 __iomem *db_addr)
 
 	inx = (unsigned int)(db_addr - kfd->doorbell_kernel_ptr);
 
-	mutex_lock(&doorbell_mutex);
-	__clear_bit(inx, doorbell_available_index);
-	mutex_unlock(&doorbell_mutex);
+	mutex_lock(&kfd->doorbell_mutex);
+	__clear_bit(inx, kfd->doorbell_available_index);
+	mutex_unlock(&kfd->doorbell_mutex);
 }
 
 inline void write_kernel_doorbell(u32 __iomem *db, u32 value)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_module.c b/drivers/gpu/drm/amd/amdkfd/kfd_module.c
index 3f34ae1..4e0a68f 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_module.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_module.c
@@ -34,7 +34,6 @@
 #define KFD_DRIVER_MINOR	7
 #define KFD_DRIVER_PATCHLEVEL	1
 
-const struct kfd2kgd_calls *kfd2kgd;
 static const struct kgd2kfd_calls kgd2kfd = {
 	.exit		= kgd2kfd_exit,
 	.probe		= kgd2kfd_probe,
@@ -55,9 +54,7 @@ module_param(max_num_of_queues_per_device, int, 0444);
 MODULE_PARM_DESC(max_num_of_queues_per_device,
 	"Maximum number of supported queues per device (1 = Minimum, 4096 = default)");
 
-bool kgd2kfd_init(unsigned interface_version,
-		  const struct kfd2kgd_calls *f2g,
-		  const struct kgd2kfd_calls **g2f)
+bool kgd2kfd_init(unsigned interface_version, const struct kgd2kfd_calls **g2f)
 {
 	/*
 	 * Only one interface version is supported,
@@ -66,11 +63,6 @@ bool kgd2kfd_init(unsigned interface_version,
 	if (interface_version != KFD_INTERFACE_VERSION)
 		return false;
 
-	/* Protection against multiple amd kgd loads */
-	if (kfd2kgd)
-		return true;
-
-	kfd2kgd = f2g;
 	*g2f = &kgd2kfd;
 
 	return true;
@@ -85,8 +77,6 @@ static int __init kfd_module_init(void)
 {
 	int err;
 
-	kfd2kgd = NULL;
-
 	/* Verify module parameters */
 	if ((sched_policy < KFD_SCHED_POLICY_HWS) ||
 		(sched_policy > KFD_SCHED_POLICY_NO_HWS)) {
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c
index a09e18a..4349794 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c
@@ -151,14 +151,15 @@ static void uninit_mqd_sdma(struct mqd_manager *mm, void *mqd,
 static int load_mqd(struct mqd_manager *mm, void *mqd, uint32_t pipe_id,
 			uint32_t queue_id, uint32_t __user *wptr)
 {
-	return kfd2kgd->hqd_load(mm->dev->kgd, mqd, pipe_id, queue_id, wptr);
+	return mm->dev->kfd2kgd->hqd_load
+		(mm->dev->kgd, mqd, pipe_id, queue_id, wptr);
 }
 
 static int load_mqd_sdma(struct mqd_manager *mm, void *mqd,
 			uint32_t pipe_id, uint32_t queue_id,
 			uint32_t __user *wptr)
 {
-	return kfd2kgd->hqd_sdma_load(mm->dev->kgd, mqd);
+	return mm->dev->kfd2kgd->hqd_sdma_load(mm->dev->kgd, mqd);
 }
 
 static int update_mqd(struct mqd_manager *mm, void *mqd,
@@ -245,7 +246,7 @@ static int destroy_mqd(struct mqd_manager *mm, void *mqd,
 			unsigned int timeout, uint32_t pipe_id,
 			uint32_t queue_id)
 {
-	return kfd2kgd->hqd_destroy(mm->dev->kgd, type, timeout,
+	return mm->dev->kfd2kgd->hqd_destroy(mm->dev->kgd, type, timeout,
 					pipe_id, queue_id);
 }
 
@@ -258,7 +259,7 @@ static int destroy_mqd_sdma(struct mqd_manager *mm, void *mqd,
 				unsigned int timeout, uint32_t pipe_id,
 				uint32_t queue_id)
 {
-	return kfd2kgd->hqd_sdma_destroy(mm->dev->kgd, mqd, timeout);
+	return mm->dev->kfd2kgd->hqd_sdma_destroy(mm->dev->kgd, mqd, timeout);
 }
 
 static bool is_occupied(struct mqd_manager *mm, void *mqd,
@@ -266,7 +267,7 @@ static bool is_occupied(struct mqd_manager *mm, void *mqd,
 			uint32_t queue_id)
 {
 
-	return kfd2kgd->hqd_is_occupied(mm->dev->kgd, queue_address,
+	return mm->dev->kfd2kgd->hqd_is_occupied(mm->dev->kgd, queue_address,
 					pipe_id, queue_id);
 
 }
@@ -275,7 +276,7 @@ static bool is_occupied_sdma(struct mqd_manager *mm, void *mqd,
 			uint64_t queue_address,	uint32_t pipe_id,
 			uint32_t queue_id)
 {
-	return kfd2kgd->hqd_sdma_is_occupied(mm->dev->kgd, mqd);
+	return mm->dev->kfd2kgd->hqd_sdma_is_occupied(mm->dev->kgd, mqd);
 }
 
 /*
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index b7bd7af..f21fcce 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -148,6 +148,11 @@ struct kfd_dev {
 
 	struct kgd2kfd_shared_resources shared_resources;
 
+	const struct kfd2kgd_calls *kfd2kgd;
+	struct mutex doorbell_mutex;
+	unsigned long doorbell_available_index[DIV_ROUND_UP(
+		KFD_MAX_NUM_OF_QUEUES_PER_PROCESS, BITS_PER_LONG)];
+
 	void *gtt_mem;
 	uint64_t gtt_start_gpu_addr;
 	void *gtt_start_cpu_ptr;
@@ -164,13 +169,12 @@ struct kfd_dev {
 
 /* KGD2KFD callbacks */
 void kgd2kfd_exit(void);
-struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, struct pci_dev *pdev);
+struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd,
+			struct pci_dev *pdev, const struct kfd2kgd_calls *f2g);
 bool kgd2kfd_device_init(struct kfd_dev *kfd,
-			 const struct kgd2kfd_shared_resources *gpu_resources);
+			const struct kgd2kfd_shared_resources *gpu_resources);
 void kgd2kfd_device_exit(struct kfd_dev *kfd);
 
-extern const struct kfd2kgd_calls *kfd2kgd;
-
 enum kfd_mempool {
 	KFD_MEMPOOL_SYSTEM_CACHEABLE = 1,
 	KFD_MEMPOOL_SYSTEM_WRITECOMBINE = 2,
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
index 4983993..661c660 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
@@ -726,13 +726,14 @@ static ssize_t node_show(struct kobject *kobj, struct attribute *attr,
 		}
 
 		sysfs_show_32bit_prop(buffer, "max_engine_clk_fcompute",
-				kfd2kgd->get_max_engine_clock_in_mhz(
+			dev->gpu->kfd2kgd->get_max_engine_clock_in_mhz(
 					dev->gpu->kgd));
 		sysfs_show_64bit_prop(buffer, "local_mem_size",
-				kfd2kgd->get_vmem_size(dev->gpu->kgd));
+			dev->gpu->kfd2kgd->get_vmem_size(
+					dev->gpu->kgd));
 
 		sysfs_show_32bit_prop(buffer, "fw_version",
-				kfd2kgd->get_fw_version(
+			dev->gpu->kfd2kgd->get_fw_version(
 						dev->gpu->kgd,
 						KGD_ENGINE_MEC1));
 	}
@@ -1099,8 +1100,9 @@ static uint32_t kfd_generate_gpu_id(struct kfd_dev *gpu)
 	buf[2] = gpu->pdev->subsystem_device;
 	buf[3] = gpu->pdev->device;
 	buf[4] = gpu->pdev->bus->number;
-	buf[5] = (uint32_t)(kfd2kgd->get_vmem_size(gpu->kgd) & 0xffffffff);
-	buf[6] = (uint32_t)(kfd2kgd->get_vmem_size(gpu->kgd) >> 32);
+	buf[5] = (uint32_t)(gpu->kfd2kgd->get_vmem_size(gpu->kgd)
+			& 0xffffffff);
+	buf[6] = (uint32_t)(gpu->kfd2kgd->get_vmem_size(gpu->kgd) >> 32);
 
 	for (i = 0, hashout = 0; i < 7; i++)
 		hashout ^= hash_32(buf[i], KFD_GPU_ID_HASH_WIDTH);
diff --git a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
index 239bc16..dabd944 100644
--- a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
@@ -77,37 +77,6 @@ struct kgd2kfd_shared_resources {
 };
 
 /**
- * struct kgd2kfd_calls
- *
- * @exit: Notifies amdkfd that kgd module is unloaded
- *
- * @probe: Notifies amdkfd about a probe done on a device in the kgd driver.
- *
- * @device_init: Initialize the newly probed device (if it is a device that
- * amdkfd supports)
- *
- * @device_exit: Notifies amdkfd about a removal of a kgd device
- *
- * @suspend: Notifies amdkfd about a suspend action done to a kgd device
- *
- * @resume: Notifies amdkfd about a resume action done to a kgd device
- *
- * This structure contains function callback pointers so the kgd driver
- * will notify to the amdkfd about certain status changes.
- *
- */
-struct kgd2kfd_calls {
-	void (*exit)(void);
-	struct kfd_dev* (*probe)(struct kgd_dev *kgd, struct pci_dev *pdev);
-	bool (*device_init)(struct kfd_dev *kfd,
-			const struct kgd2kfd_shared_resources *gpu_resources);
-	void (*device_exit)(struct kfd_dev *kfd);
-	void (*interrupt)(struct kfd_dev *kfd, const void *ih_ring_entry);
-	void (*suspend)(struct kfd_dev *kfd);
-	int (*resume)(struct kfd_dev *kfd);
-};
-
-/**
  * struct kfd2kgd_calls
  *
  * @init_gtt_mem_allocation: Allocate a buffer on the gart aperture.
@@ -196,8 +165,39 @@ struct kfd2kgd_calls {
 				enum kgd_engine_type type);
 };
 
+/**
+ * struct kgd2kfd_calls
+ *
+ * @exit: Notifies amdkfd that kgd module is unloaded
+ *
+ * @probe: Notifies amdkfd about a probe done on a device in the kgd driver.
+ *
+ * @device_init: Initialize the newly probed device (if it is a device that
+ * amdkfd supports)
+ *
+ * @device_exit: Notifies amdkfd about a removal of a kgd device
+ *
+ * @suspend: Notifies amdkfd about a suspend action done to a kgd device
+ *
+ * @resume: Notifies amdkfd about a resume action done to a kgd device
+ *
+ * This structure contains function callback pointers so the kgd driver
+ * will notify to the amdkfd about certain status changes.
+ *
+ */
+struct kgd2kfd_calls {
+	void (*exit)(void);
+	struct kfd_dev* (*probe)(struct kgd_dev *kgd, struct pci_dev *pdev,
+		const struct kfd2kgd_calls *f2g);
+	bool (*device_init)(struct kfd_dev *kfd,
+			const struct kgd2kfd_shared_resources *gpu_resources);
+	void (*device_exit)(struct kfd_dev *kfd);
+	void (*interrupt)(struct kfd_dev *kfd, const void *ih_ring_entry);
+	void (*suspend)(struct kfd_dev *kfd);
+	int (*resume)(struct kfd_dev *kfd);
+};
+
 bool kgd2kfd_init(unsigned interface_version,
-		const struct kfd2kgd_calls *f2g,
 		const struct kgd2kfd_calls **g2f);
 
 #endif	/* KGD_KFD_INTERFACE_H_INCLUDED */
diff --git a/drivers/gpu/drm/radeon/radeon_kfd.c b/drivers/gpu/drm/radeon/radeon_kfd.c
index 061eaa9..4cdcaf8 100644
--- a/drivers/gpu/drm/radeon/radeon_kfd.c
+++ b/drivers/gpu/drm/radeon/radeon_kfd.c
@@ -103,15 +103,14 @@ static const struct kgd2kfd_calls *kgd2kfd;
 bool radeon_kfd_init(void)
 {
 #if defined(CONFIG_HSA_AMD_MODULE)
-	bool (*kgd2kfd_init_p)(unsigned, const struct kfd2kgd_calls*,
-				const struct kgd2kfd_calls**);
+	bool (*kgd2kfd_init_p)(unsigned, const struct kgd2kfd_calls**);
 
 	kgd2kfd_init_p = symbol_request(kgd2kfd_init);
 
 	if (kgd2kfd_init_p == NULL)
 		return false;
 
-	if (!kgd2kfd_init_p(KFD_INTERFACE_VERSION, &kfd2kgd, &kgd2kfd)) {
+	if (!kgd2kfd_init_p(KFD_INTERFACE_VERSION, &kgd2kfd)) {
 		symbol_put(kgd2kfd_init);
 		kgd2kfd = NULL;
 
@@ -120,7 +119,7 @@ bool radeon_kfd_init(void)
 
 	return true;
 #elif defined(CONFIG_HSA_AMD)
-	if (!kgd2kfd_init(KFD_INTERFACE_VERSION, &kfd2kgd, &kgd2kfd)) {
+	if (!kgd2kfd_init(KFD_INTERFACE_VERSION, &kgd2kfd)) {
 		kgd2kfd = NULL;
 
 		return false;
@@ -143,7 +142,8 @@ void radeon_kfd_fini(void)
 void radeon_kfd_device_probe(struct radeon_device *rdev)
 {
 	if (kgd2kfd)
-		rdev->kfd = kgd2kfd->probe((struct kgd_dev *)rdev, rdev->pdev);
+		rdev->kfd = kgd2kfd->probe((struct kgd_dev *)rdev,
+			rdev->pdev, &kfd2kgd);
 }
 
 void radeon_kfd_device_init(struct radeon_device *rdev)
-- 
1.9.1

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