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Merge branches 'arm/renesas', 'arm/smmu', 'arm/omap', 'ppc/pamu', 'x86/amd' and 'core' into next

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Conflicts:
	drivers/iommu/Kconfig
	drivers/iommu/Makefile
This commit is contained in:
Joerg Roedel
2015-02-04 16:53:44 +01:00
parent bb590c9011 a4188beee5 1d7f449c89 cd70d4659f ae0cbbb1cd 63ce3ae889
commit a20cc76b9e
255 changed files with 2797 additions and 1695 deletions
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35
drivers/iommu/amd_iommu_v2.c
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@ -1,6 +1,6 @@
/*
* Copyright (C) 2010-2012 Advanced Micro Devices, Inc.
* Author: Joerg Roedel <joerg.roedel@amd.com>
* Author: Joerg Roedel <jroedel@suse.de>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
@ -31,7 +31,7 @@
#include "amd_iommu_proto.h"
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Joerg Roedel <joerg.roedel@amd.com>");
MODULE_AUTHOR("Joerg Roedel <jroedel@suse.de>");
#define MAX_DEVICES 0x10000
#define PRI_QUEUE_SIZE 512
@ -151,18 +151,6 @@ static void put_device_state(struct device_state *dev_state)
wake_up(&dev_state->wq);
}
static void put_device_state_wait(struct device_state *dev_state)
{
DEFINE_WAIT(wait);
prepare_to_wait(&dev_state->wq, &wait, TASK_UNINTERRUPTIBLE);
if (!atomic_dec_and_test(&dev_state->count))
schedule();
finish_wait(&dev_state->wq, &wait);
free_device_state(dev_state);
}
/* Must be called under dev_state->lock */
static struct pasid_state **__get_pasid_state_ptr(struct device_state *dev_state,
int pasid, bool alloc)
@ -278,14 +266,7 @@ static void put_pasid_state(struct pasid_state *pasid_state)
static void put_pasid_state_wait(struct pasid_state *pasid_state)
{
DEFINE_WAIT(wait);
prepare_to_wait(&pasid_state->wq, &wait, TASK_UNINTERRUPTIBLE);
if (!atomic_dec_and_test(&pasid_state->count))
schedule();
finish_wait(&pasid_state->wq, &wait);
wait_event(pasid_state->wq, !atomic_read(&pasid_state->count));
free_pasid_state(pasid_state);
}
@ -851,7 +832,13 @@ void amd_iommu_free_device(struct pci_dev *pdev)
/* Get rid of any remaining pasid states */
free_pasid_states(dev_state);
put_device_state_wait(dev_state);
put_device_state(dev_state);
/*
* Wait until the last reference is dropped before freeing
* the device state.
*/
wait_event(dev_state->wq, !atomic_read(&dev_state->count));
free_device_state(dev_state);
}
EXPORT_SYMBOL(amd_iommu_free_device);
@ -921,7 +908,7 @@ static int __init amd_iommu_v2_init(void)
{
int ret;
pr_info("AMD IOMMUv2 driver by Joerg Roedel <joerg.roedel@amd.com>\n");
pr_info("AMD IOMMUv2 driver by Joerg Roedel <jroedel@suse.de>\n");
if (!amd_iommu_v2_supported()) {
pr_info("AMD IOMMUv2 functionality not available on this system\n");