Commit 11f63d3f authored by Alexey Kardashevskiy's avatar Alexey Kardashevskiy Committed by Benjamin Herrenschmidt
Browse files

powerpc/iommu: Add ppc_md.tce_get() callback for use by VFIO

The upcoming VFIO support requires a way to know which
entry in the TCE map is not empty in order to do cleanup
at QEMU exit/crash. This patch adds such functionality
to POWERNV platform code.

Signed-off-by: default avatarAlexey Kardashevskiy <>
Signed-off-by: default avatarBenjamin Herrenschmidt <>
parent 4715fed6
......@@ -446,6 +446,11 @@ static void pnv_tce_free(struct iommu_table *tbl, long index, long npages)
pnv_tce_invalidate(tbl, tces, tcep - 1);
static unsigned long pnv_tce_get(struct iommu_table *tbl, long index)
return ((u64 *)tbl->it_base)[index - tbl->it_offset];
void pnv_pci_setup_iommu_table(struct iommu_table *tbl,
void *tce_mem, u64 tce_size,
u64 dma_offset)
......@@ -596,6 +601,7 @@ void __init pnv_pci_init(void)
ppc_md.pci_dma_dev_setup = pnv_pci_dma_dev_setup;
ppc_md.tce_build = pnv_tce_build;
ppc_md.tce_free = pnv_tce_free;
ppc_md.tce_get = pnv_tce_get;
ppc_md.pci_probe_mode = pnv_pci_probe_mode;
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