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Date: Fri, 8 Apr 2011 10:17:06 +0200
From: Joerg Roedel <joerg.roedel@....com>
To: <iommu@...ts.linux-foundation.org>,
Jesse Barnes <jbarnes@...tuousgeek.org>
CC: <linux-kernel@...r.kernel.org>, <linux-pci@...r.kernel.org>,
Joerg Roedel <joerg.roedel@....com>
Subject: [PATCH 1/5] PCI: Move ATS declarations in seperate header file
This patch moves the relevant declarations from the local
header file in drivers/pci to a more accessible locations so
that it can be used by the AMD IOMMU driver too.
The file is named pci-ats-pri.h because support for the PCI
PRI capability will also be added there in a later
patch-set.
Signed-off-by: Joerg Roedel <joerg.roedel@....com>
---
drivers/pci/intel-iommu.c | 1 +
drivers/pci/iov.c | 1 +
drivers/pci/pci.h | 37 --------------------------------
include/linux/pci-ats.h | 52 +++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 54 insertions(+), 37 deletions(-)
create mode 100644 include/linux/pci-ats.h
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 7da3bef..fdb2cef 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -39,6 +39,7 @@
#include <linux/syscore_ops.h>
#include <linux/tboot.h>
#include <linux/dmi.h>
+#include <linux/pci-ats.h>
#include <asm/cacheflush.h>
#include <asm/iommu.h>
#include "pci.h"
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index 553d8ee..42fae47 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -13,6 +13,7 @@
#include <linux/mutex.h>
#include <linux/string.h>
#include <linux/delay.h>
+#include <linux/pci-ats.h>
#include "pci.h"
#define VIRTFN_ID_LEN 16
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index a6ec200..4020025 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -250,15 +250,6 @@ struct pci_sriov {
u8 __iomem *mstate; /* VF Migration State Array */
};
-/* Address Translation Service */
-struct pci_ats {
- int pos; /* capability position */
- int stu; /* Smallest Translation Unit */
- int qdep; /* Invalidate Queue Depth */
- int ref_cnt; /* Physical Function reference count */
- unsigned int is_enabled:1; /* Enable bit is set */
-};
-
#ifdef CONFIG_PCI_IOV
extern int pci_iov_init(struct pci_dev *dev);
extern void pci_iov_release(struct pci_dev *dev);
@@ -269,19 +260,6 @@ extern resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev,
extern void pci_restore_iov_state(struct pci_dev *dev);
extern int pci_iov_bus_range(struct pci_bus *bus);
-extern int pci_enable_ats(struct pci_dev *dev, int ps);
-extern void pci_disable_ats(struct pci_dev *dev);
-extern int pci_ats_queue_depth(struct pci_dev *dev);
-/**
- * pci_ats_enabled - query the ATS status
- * @dev: the PCI device
- *
- * Returns 1 if ATS capability is enabled, or 0 if not.
- */
-static inline int pci_ats_enabled(struct pci_dev *dev)
-{
- return dev->ats && dev->ats->is_enabled;
-}
#else
static inline int pci_iov_init(struct pci_dev *dev)
{
@@ -304,21 +282,6 @@ static inline int pci_iov_bus_range(struct pci_bus *bus)
return 0;
}
-static inline int pci_enable_ats(struct pci_dev *dev, int ps)
-{
- return -ENODEV;
-}
-static inline void pci_disable_ats(struct pci_dev *dev)
-{
-}
-static inline int pci_ats_queue_depth(struct pci_dev *dev)
-{
- return -ENODEV;
-}
-static inline int pci_ats_enabled(struct pci_dev *dev)
-{
- return 0;
-}
#endif /* CONFIG_PCI_IOV */
static inline resource_size_t pci_resource_alignment(struct pci_dev *dev,
diff --git a/include/linux/pci-ats.h b/include/linux/pci-ats.h
new file mode 100644
index 0000000..655824f
--- /dev/null
+++ b/include/linux/pci-ats.h
@@ -0,0 +1,52 @@
+#ifndef LINUX_PCI_ATS_H
+#define LINUX_PCI_ATS_H
+
+/* Address Translation Service */
+struct pci_ats {
+ int pos; /* capability position */
+ int stu; /* Smallest Translation Unit */
+ int qdep; /* Invalidate Queue Depth */
+ int ref_cnt; /* Physical Function reference count */
+ unsigned int is_enabled:1; /* Enable bit is set */
+};
+
+#ifdef CONFIG_PCI_IOV
+
+extern int pci_enable_ats(struct pci_dev *dev, int ps);
+extern void pci_disable_ats(struct pci_dev *dev);
+extern int pci_ats_queue_depth(struct pci_dev *dev);
+/**
+ * pci_ats_enabled - query the ATS status
+ * @dev: the PCI device
+ *
+ * Returns 1 if ATS capability is enabled, or 0 if not.
+ */
+static inline int pci_ats_enabled(struct pci_dev *dev)
+{
+ return dev->ats && dev->ats->is_enabled;
+}
+
+#else /* CONFIG_PCI_IOV */
+
+static inline int pci_enable_ats(struct pci_dev *dev, int ps)
+{
+ return -ENODEV;
+}
+
+static inline void pci_disable_ats(struct pci_dev *dev)
+{
+}
+
+static inline int pci_ats_queue_depth(struct pci_dev *dev)
+{
+ return -ENODEV;
+}
+
+static inline int pci_ats_enabled(struct pci_dev *dev)
+{
+ return 0;
+}
+
+#endif /* CONFIG_PCI_IOV */
+
+#endif /* LINUX_PCI_ATS_H*/
--
1.7.1
--
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