iommu/amd: Don't access IOMMUv2 state_table directly
This is a preparation for converting the state_table into a state_list. Signed-off-by: Joerg Roedel <jroedel@suse.de> Tested-by: Jay Cornwall <Jay.Cornwall@amd.com>
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@ -111,13 +111,18 @@ static u16 device_id(struct pci_dev *pdev)
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return devid;
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return devid;
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}
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}
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static struct device_state *__get_device_state(u16 devid)
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{
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return state_table[devid];
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}
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static struct device_state *get_device_state(u16 devid)
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static struct device_state *get_device_state(u16 devid)
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{
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{
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struct device_state *dev_state;
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struct device_state *dev_state;
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unsigned long flags;
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unsigned long flags;
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spin_lock_irqsave(&state_lock, flags);
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spin_lock_irqsave(&state_lock, flags);
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dev_state = state_table[devid];
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dev_state = __get_device_state(devid);
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if (dev_state != NULL)
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if (dev_state != NULL)
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atomic_inc(&dev_state->count);
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atomic_inc(&dev_state->count);
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spin_unlock_irqrestore(&state_lock, flags);
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spin_unlock_irqrestore(&state_lock, flags);
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@ -841,7 +846,7 @@ void amd_iommu_free_device(struct pci_dev *pdev)
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spin_lock_irqsave(&state_lock, flags);
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spin_lock_irqsave(&state_lock, flags);
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dev_state = state_table[devid];
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dev_state = __get_device_state(devid);
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if (dev_state == NULL) {
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if (dev_state == NULL) {
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spin_unlock_irqrestore(&state_lock, flags);
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spin_unlock_irqrestore(&state_lock, flags);
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return;
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return;
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@ -874,7 +879,7 @@ int amd_iommu_set_invalid_ppr_cb(struct pci_dev *pdev,
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spin_lock_irqsave(&state_lock, flags);
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spin_lock_irqsave(&state_lock, flags);
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ret = -EINVAL;
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ret = -EINVAL;
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dev_state = state_table[devid];
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dev_state = __get_device_state(devid);
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if (dev_state == NULL)
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if (dev_state == NULL)
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goto out_unlock;
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goto out_unlock;
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@ -905,7 +910,7 @@ int amd_iommu_set_invalidate_ctx_cb(struct pci_dev *pdev,
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spin_lock_irqsave(&state_lock, flags);
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spin_lock_irqsave(&state_lock, flags);
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ret = -EINVAL;
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ret = -EINVAL;
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dev_state = state_table[devid];
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dev_state = __get_device_state(devid);
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if (dev_state == NULL)
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if (dev_state == NULL)
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goto out_unlock;
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goto out_unlock;
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