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Subject[PATCH v6 4/7] iommu/io-pgtable: Add helper for toggling non-strict mode
Date
Since this might become a repeated idiom in drivers, let's add a tidy
encapsulation from the outset.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
drivers/iommu/io-pgtable.c | 9 +++++++++
drivers/iommu/io-pgtable.h | 1 +
2 files changed, 10 insertions(+)

diff --git a/drivers/iommu/io-pgtable.c b/drivers/iommu/io-pgtable.c
index 127558d83667..af9abe52cf06 100644
--- a/drivers/iommu/io-pgtable.c
+++ b/drivers/iommu/io-pgtable.c
@@ -77,3 +77,12 @@ void free_io_pgtable_ops(struct io_pgtable_ops *ops)
io_pgtable_tlb_flush_all(iop);
io_pgtable_init_table[iop->fmt]->free(iop);
}
+
+void io_pgtable_set_non_strict(struct io_pgtable_ops *ops, bool val) {
+ struct io_pgtable *iop = io_pgtable_ops_to_pgtable(ops);
+
+ if (val)
+ iop->cfg.quirks |= IO_PGTABLE_QUIRK_NON_STRICT;
+ else
+ iop->cfg.quirks &= ~IO_PGTABLE_QUIRK_NON_STRICT;
+}
diff --git a/drivers/iommu/io-pgtable.h b/drivers/iommu/io-pgtable.h
index 47d5ae559329..0602a132655c 100644
--- a/drivers/iommu/io-pgtable.h
+++ b/drivers/iommu/io-pgtable.h
@@ -153,6 +153,7 @@ struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt,
*/
void free_io_pgtable_ops(struct io_pgtable_ops *ops);

+void io_pgtable_set_non_strict(struct io_pgtable_ops *ops, bool val);

/*
* Internal structures for page table allocator implementations.
--
2.19.0.dirty
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