From: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
To: linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org
Cc: robin.murphy@arm.com
Subject: [PATCH v3 13/14] iommu/amd: Introduce IOMMU flush callbacks
Date: Sun, 4 Oct 2020 01:45:48 +0000 [thread overview]
Message-ID: <20201004014549.16065-14-suravee.suthikulpanit@amd.com> (raw)
In-Reply-To: <20201004014549.16065-1-suravee.suthikulpanit@amd.com>
Add TLB flush callback functions, which are used by the IO
page table framework.
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
---
drivers/iommu/amd/io_pgtable.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/drivers/iommu/amd/io_pgtable.c b/drivers/iommu/amd/io_pgtable.c
index d8b329aa0bb2..3c2faa47ea5d 100644
--- a/drivers/iommu/amd/io_pgtable.c
+++ b/drivers/iommu/amd/io_pgtable.c
@@ -514,6 +514,33 @@ static phys_addr_t iommu_v1_iova_to_phys(struct io_pgtable_ops *ops, unsigned lo
/*
* ----------------------------------------------------
*/
+static void v1_tlb_flush_all(void *cookie)
+{
+}
+
+static void v1_tlb_flush_walk(unsigned long iova, size_t size,
+ size_t granule, void *cookie)
+{
+}
+
+static void v1_tlb_flush_leaf(unsigned long iova, size_t size,
+ size_t granule, void *cookie)
+{
+}
+
+static void v1_tlb_add_page(struct iommu_iotlb_gather *gather,
+ unsigned long iova, size_t granule,
+ void *cookie)
+{
+}
+
+const struct iommu_flush_ops v1_flush_ops = {
+ .tlb_flush_all = v1_tlb_flush_all,
+ .tlb_flush_walk = v1_tlb_flush_walk,
+ .tlb_flush_leaf = v1_tlb_flush_leaf,
+ .tlb_add_page = v1_tlb_add_page,
+};
+
static void v1_free_pgtable(struct io_pgtable *iop)
{
}
@@ -526,6 +553,8 @@ static struct io_pgtable *v1_alloc_pgtable(struct io_pgtable_cfg *cfg, void *coo
pgtable->iop.ops.unmap = iommu_v1_unmap_page;
pgtable->iop.ops.iova_to_phys = iommu_v1_iova_to_phys;
+ cfg->tlb = &v1_flush_ops;
+
return &pgtable->iop;
}
--
2.17.1
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next prev parent reply other threads:[~2020-10-04 1:42 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-04 1:45 [PATCH v3 00/14] iommu/amd: Add Generic IO Page Table Framework Support Suravee Suthikulpanit
2020-10-04 1:45 ` [PATCH v3 01/14] iommu/amd: Re-define amd_iommu_domain_encode_pgtable as inline Suravee Suthikulpanit
2020-10-04 1:45 ` [PATCH v3 02/14] iommu/amd: Prepare for generic IO page table framework Suravee Suthikulpanit
2020-10-04 1:45 ` [PATCH v3 03/14] iommu/amd: Move pt_root to to struct amd_io_pgtable Suravee Suthikulpanit
2020-10-04 1:45 ` [PATCH v3 04/14] iommu/amd: Convert to using amd_io_pgtable Suravee Suthikulpanit
2020-10-04 1:45 ` [PATCH v3 05/14] iommu/amd: Declare functions as extern Suravee Suthikulpanit
2020-10-04 1:45 ` [PATCH v3 06/14] iommu/amd: Move IO page table related functions Suravee Suthikulpanit
2020-10-04 1:45 ` [PATCH v3 07/14] iommu/amd: Restructure code for freeing page table Suravee Suthikulpanit
2020-10-04 1:45 ` [PATCH v3 08/14] iommu/amd: Remove amd_iommu_domain_get_pgtable Suravee Suthikulpanit
2020-10-04 1:45 ` [PATCH v3 09/14] iommu/amd: Rename variables to be consistent with struct io_pgtable_ops Suravee Suthikulpanit
2020-10-04 1:45 ` [PATCH v3 10/14] iommu/amd: Refactor fetch_pte to use struct amd_io_pgtable Suravee Suthikulpanit
2020-10-04 1:45 ` [PATCH v3 11/14] iommu/amd: Introduce iommu_v1_iova_to_phys Suravee Suthikulpanit
2020-10-04 1:45 ` [PATCH v3 12/14] iommu/amd: Introduce iommu_v1_map_page and iommu_v1_unmap_page Suravee Suthikulpanit
2020-10-04 1:45 ` Suravee Suthikulpanit [this message]
2020-10-04 1:45 ` [PATCH v3 14/14] iommu/amd: Adopt IO page table framework Suravee Suthikulpanit
2020-10-05 10:33 ` Jonathan Cameron
2020-11-02 3:16 ` [PATCH v3 00/14] iommu/amd: Add Generic IO Page Table Framework Support Suravee Suthikulpanit
2020-11-11 3:10 ` Suravee Suthikulpanit
2020-11-13 5:57 ` Suravee Suthikulpanit
2020-11-17 22:43 ` Will Deacon
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