iommu/amd: Convert dev_table_entry to u64
Convert the contents of 'struct dev_table_entry' to u64 to
allow updating the DTE wit 64bit writes as required by the
spec.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 82d2410..17e0f77 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -584,18 +584,18 @@
/* sets a specific bit in the device table entry. */
static void set_dev_entry_bit(u16 devid, u8 bit)
{
- int i = (bit >> 5) & 0x07;
- int _bit = bit & 0x1f;
+ int i = (bit >> 6) & 0x03;
+ int _bit = bit & 0x3f;
- amd_iommu_dev_table[devid].data[i] |= (1 << _bit);
+ amd_iommu_dev_table[devid].data[i] |= (1UL << _bit);
}
static int get_dev_entry_bit(u16 devid, u8 bit)
{
- int i = (bit >> 5) & 0x07;
- int _bit = bit & 0x1f;
+ int i = (bit >> 6) & 0x03;
+ int _bit = bit & 0x3f;
- return (amd_iommu_dev_table[devid].data[i] & (1 << _bit)) >> _bit;
+ return (amd_iommu_dev_table[devid].data[i] & (1UL << _bit)) >> _bit;
}