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authorWill Deacon <will@kernel.org>2019-07-02 18:44:32 +0300
committerWill Deacon <will@kernel.org>2019-07-29 19:22:57 +0300
commit10b7a7d912697afd681a0bcfced9e05543aded35 (patch)
tree0db2a2ccbf0d8d07f7c37d7a84d5aed43d0da13e /drivers/iommu/io-pgtable-arm.c
parent05aed9412b0bd0d9a985d94010c42ff0a5c6cc29 (diff)
downloadlinux-10b7a7d912697afd681a0bcfced9e05543aded35.tar.xz
iommu/io-pgtable-arm: Call ->tlb_flush_walk() and ->tlb_flush_leaf()
Now that all IOMMU drivers using the io-pgtable API implement the ->tlb_flush_walk() and ->tlb_flush_leaf() callbacks, we can use them in the io-pgtable code instead of ->tlb_add_flush() immediately followed by ->tlb_sync(). Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu/io-pgtable-arm.c')
-rw-r--r--drivers/iommu/io-pgtable-arm.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
index 402f913b6f6d..b58338c86323 100644
--- a/drivers/iommu/io-pgtable-arm.c
+++ b/drivers/iommu/io-pgtable-arm.c
@@ -611,9 +611,8 @@ static size_t __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
if (!iopte_leaf(pte, lvl, iop->fmt)) {
/* Also flush any partial walks */
- io_pgtable_tlb_add_flush(iop, iova, size,
- ARM_LPAE_GRANULE(data), false);
- io_pgtable_tlb_sync(iop);
+ io_pgtable_tlb_flush_walk(iop, iova, size,
+ ARM_LPAE_GRANULE(data));
ptep = iopte_deref(pte, data);
__arm_lpae_free_pgtable(data, lvl + 1, ptep);
} else if (iop->cfg.quirks & IO_PGTABLE_QUIRK_NON_STRICT) {
@@ -1069,13 +1068,19 @@ static void dummy_tlb_flush_all(void *cookie)
WARN_ON(cookie != cfg_cookie);
}
-static void dummy_tlb_add_flush(unsigned long iova, size_t size,
- size_t granule, bool leaf, void *cookie)
+static void dummy_tlb_flush(unsigned long iova, size_t size, size_t granule,
+ void *cookie)
{
WARN_ON(cookie != cfg_cookie);
WARN_ON(!(size & cfg_cookie->pgsize_bitmap));
}
+static void dummy_tlb_add_flush(unsigned long iova, size_t size,
+ size_t granule, bool leaf, void *cookie)
+{
+ dummy_tlb_flush(iova, size, granule, cookie);
+}
+
static void dummy_tlb_sync(void *cookie)
{
WARN_ON(cookie != cfg_cookie);
@@ -1083,6 +1088,8 @@ static void dummy_tlb_sync(void *cookie)
static const struct iommu_flush_ops dummy_tlb_ops __initconst = {
.tlb_flush_all = dummy_tlb_flush_all,
+ .tlb_flush_walk = dummy_tlb_flush,
+ .tlb_flush_leaf = dummy_tlb_flush,
.tlb_add_flush = dummy_tlb_add_flush,
.tlb_sync = dummy_tlb_sync,
};