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Commit 9163b901 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

iommu/amd: Remove IOMMUv2 pasid_state_list 



This list was only used for the task_exit notifier function.
Now that it is gone we can remove it.

Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
Tested-by: default avatarJay Cornwall <Jay.Cornwall@amd.com>
parent a40d4c67

drivers/iommu/amd_iommu_v2.c

+0 −26
Original line number Diff line number Diff line
@@ -86,10 +86,6 @@ struct fault { 
static LIST_HEAD(state_list);

static spinlock_t state_lock;



/* List and lock for all pasid_states */

static LIST_HEAD(pasid_state_list);

static DEFINE_SPINLOCK(ps_lock);



static struct workqueue_struct *iommu_wq;



/*
@@ -171,25 +167,6 @@ static void put_device_state_wait(struct device_state *dev_state) 
	free_device_state(dev_state);

}



static void link_pasid_state(struct pasid_state *pasid_state)

{

	spin_lock(&ps_lock);

	list_add_tail(&pasid_state->list, &pasid_state_list);

	spin_unlock(&ps_lock);

}



static void __unlink_pasid_state(struct pasid_state *pasid_state)

{

	list_del(&pasid_state->list);

}



static void unlink_pasid_state(struct pasid_state *pasid_state)

{

	spin_lock(&ps_lock);

	__unlink_pasid_state(pasid_state);

	spin_unlock(&ps_lock);

}



/* Must be called under dev_state->lock */

static struct pasid_state **__get_pasid_state_ptr(struct device_state *dev_state,

						  int pasid, bool alloc)
@@ -346,7 +323,6 @@ static void unbind_pasid(struct device_state *dev_state, int pasid) 
	if (pasid_state == NULL)

		return;



	unlink_pasid_state(pasid_state);

	__unbind_pasid(pasid_state);

	put_pasid_state_wait(pasid_state); /* Reference taken in this function */

}
@@ -689,8 +665,6 @@ int amd_iommu_bind_pasid(struct pci_dev *pdev, int pasid, 
	if (ret)

		goto out_clear_state;



	link_pasid_state(pasid_state);



	return 0;



out_clear_state: