VT-d hardware cap/ecap information is needed for driver to generate VT-d
format IO page table. Add struct vtd_cfg to keep the info.
Signed-off-by: Tina Zhang <tina.zhang@xxxxxxxxx>
---
include/linux/io-pgtable.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/linux/io-pgtable.h b/include/linux/io-pgtable.h
index b2857c18f963..ae6a2e44b027 100644
--- a/include/linux/io-pgtable.h
+++ b/include/linux/io-pgtable.h
@@ -147,6 +147,11 @@ struct io_pgtable_cfg {
u32 n_ttbrs;
} apple_dart_cfg;
+ struct {
+ u64 cap_reg;
+ u64 ecap_reg;
+ } vtd_cfg;
+
struct {
dma_addr_t pgd;
} virt;
--
2.39.3
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