diff options
| author | Joerg Roedel <joerg.roedel@amd.com> | 2011-11-09 12:06:03 +0100 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2011-12-12 14:54:23 +0100 |
| commit | ee6c28684585a64fd79c5a56e849af58ebdc5948 (patch) | |
| tree | c58aea90ae017d89a53833097b0ecd95a072c8ec /drivers/iommu/amd_iommu.c | |
| parent | dc47ce90c3a822cd7c9e9339fe4d5f61dcb26b50 (diff) | |
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>
Diffstat (limited to 'drivers/iommu/amd_iommu.c')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 4ee277a8521..661e2bb4ac1 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -365,8 +365,8 @@ static void dump_dte_entry(u16 devid) { int i; - for (i = 0; i < 8; ++i) - pr_err("AMD-Vi: DTE[%d]: %08x\n", i, + for (i = 0; i < 4; ++i) + pr_err("AMD-Vi: DTE[%d]: %016llx\n", i, amd_iommu_dev_table[devid].data[i]); } @@ -1583,19 +1583,22 @@ static bool dma_ops_domain(struct protection_domain *domain) static void set_dte_entry(u16 devid, struct protection_domain *domain, bool ats) { u64 pte_root = virt_to_phys(domain->pt_root); - u32 flags = 0; + u64 flags = 0; pte_root |= (domain->mode & DEV_ENTRY_MODE_MASK) << DEV_ENTRY_MODE_SHIFT; pte_root |= IOMMU_PTE_IR | IOMMU_PTE_IW | IOMMU_PTE_P | IOMMU_PTE_TV; + flags = amd_iommu_dev_table[devid].data[1]; + if (ats) flags |= DTE_FLAG_IOTLB; - amd_iommu_dev_table[devid].data[3] |= flags; - amd_iommu_dev_table[devid].data[2] = domain->id; - amd_iommu_dev_table[devid].data[1] = upper_32_bits(pte_root); - amd_iommu_dev_table[devid].data[0] = lower_32_bits(pte_root); + flags &= ~(0xffffUL); + flags |= domain->id; + + amd_iommu_dev_table[devid].data[1] = flags; + amd_iommu_dev_table[devid].data[0] = pte_root; } static void clear_dte_entry(u16 devid) @@ -1603,7 +1606,6 @@ static void clear_dte_entry(u16 devid) /* remove entry from the device table seen by the hardware */ amd_iommu_dev_table[devid].data[0] = IOMMU_PTE_P | IOMMU_PTE_TV; amd_iommu_dev_table[devid].data[1] = 0; - amd_iommu_dev_table[devid].data[2] = 0; amd_iommu_apply_erratum_63(devid); } |