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authorShuah Khan <shuah.khan@hp.com>2013-02-27 17:07:30 -0700
committerBjorn Helgaas <bhelgaas@google.com>2013-03-26 16:21:58 -0600
commit6f2729bab2cc386bb603698646dacd9ab6297ba0 (patch)
tree40e0daad672d14546cf810bfd77bb1006575a999 /drivers/iommu
parentc5081cd7a2b3db31a72b4c697321cf0425dbc2f1 (diff)
downloadop-kernel-dev-6f2729bab2cc386bb603698646dacd9ab6297ba0.zip
op-kernel-dev-6f2729bab2cc386bb603698646dacd9ab6297ba0.tar.gz
iommu/amd: Remove calc_devid() and use PCI_DEVID() from PCI
Change to remove calc_devid() and use PCI_DEVID() from PCI instead. Signed-off-by: Shuah Khan <shuah.khan@hp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Joerg Roedel <joro@8bytes.org>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/amd_iommu.c2
-rw-r--r--drivers/iommu/amd_iommu_init.c6
-rw-r--r--drivers/iommu/amd_iommu_types.h7
3 files changed, 4 insertions, 11 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 2a50fbe..e046d7a 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -173,7 +173,7 @@ static inline u16 get_device_id(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
- return calc_devid(pdev->bus->number, pdev->devfn);
+ return PCI_DEVID(pdev->bus->number, pdev->devfn);
}
static struct iommu_dev_data *get_dev_data(struct device *dev)
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index f8ed6f1..551768a 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -406,7 +406,7 @@ static int __init find_last_devid_on_pci(int bus, int dev, int fn, int cap_ptr)
u32 cap;
cap = read_pci_config(bus, dev, fn, cap_ptr+MMIO_RANGE_OFFSET);
- update_last_devid(calc_devid(MMIO_GET_BUS(cap), MMIO_GET_LD(cap)));
+ update_last_devid(PCI_DEVID(MMIO_GET_BUS(cap), MMIO_GET_LD(cap)));
return 0;
}
@@ -1128,9 +1128,9 @@ static int iommu_init_pci(struct amd_iommu *iommu)
pci_read_config_dword(iommu->dev, cap_ptr + MMIO_MISC_OFFSET,
&misc);
- iommu->first_device = calc_devid(MMIO_GET_BUS(range),
+ iommu->first_device = PCI_DEVID(MMIO_GET_BUS(range),
MMIO_GET_FD(range));
- iommu->last_device = calc_devid(MMIO_GET_BUS(range),
+ iommu->last_device = PCI_DEVID(MMIO_GET_BUS(range),
MMIO_GET_LD(range));
if (!(iommu->cap & (1 << IOMMU_CAP_IOTLB)))
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index a07882f..ec36cf6 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -701,13 +701,6 @@ extern int amd_iommu_max_glx_val;
*/
extern void iommu_flush_all_caches(struct amd_iommu *iommu);
-/* takes bus and device/function and returns the device id
- * FIXME: should that be in generic PCI code? */
-static inline u16 calc_devid(u8 bus, u8 devfn)
-{
- return (((u16)bus) << 8) | devfn;
-}
-
static inline int get_ioapic_devid(int id)
{
struct devid_map *entry;
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