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authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-20 03:27:28 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-20 03:27:28 +0300
commitd4c6cd157a77645b9f8bff348b57aafa551f2d79 (patch)
tree81e0cfc1149820e979ed609d7c87f7de5671a6bb /drivers
parent4217fdde34a574f1bbdd5f34f64e499465a157ba (diff)
parent745b6e74704782488dd875292bc49e24d23e81fd (diff)
downloadlinux-d4c6cd157a77645b9f8bff348b57aafa551f2d79.tar.xz
Merge tag 'iommu-fixes-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel: - another compile-fix as a fallout of the recent header-file cleanup - add a missing IO/TLB flush to the Intel VT-d kdump code path - a fix for ARM64 dma code to only access initialized iova_domain members * tag 'iommu-fixes-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/mediatek: Include linux/dma-mapping.h iommu/vt-d: Flush the IOTLB to get rid of the initial kdump mappings iommu/dma: Don't touch invalid iova_domain members
Diffstat (limited to 'drivers')
-rw-r--r--drivers/iommu/dma-iommu.c13
-rw-r--r--drivers/iommu/intel-iommu.c5
-rw-r--r--drivers/iommu/mtk_iommu_v1.c1
3 files changed, 13 insertions, 6 deletions
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 8348f366ddd1..62618e77bedc 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -396,13 +396,13 @@ static void iommu_dma_free_iova(struct iommu_dma_cookie *cookie,
dma_addr_t iova, size_t size)
{
struct iova_domain *iovad = &cookie->iovad;
- unsigned long shift = iova_shift(iovad);
/* The MSI case is only ever cleaning up its most recent allocation */
if (cookie->type == IOMMU_DMA_MSI_COOKIE)
cookie->msi_iova -= size;
else
- free_iova_fast(iovad, iova >> shift, size >> shift);
+ free_iova_fast(iovad, iova_pfn(iovad, iova),
+ size >> iova_shift(iovad));
}
static void __iommu_dma_unmap(struct iommu_domain *domain, dma_addr_t dma_addr,
@@ -617,11 +617,14 @@ static dma_addr_t __iommu_dma_map(struct device *dev, phys_addr_t phys,
{
struct iommu_domain *domain = iommu_get_domain_for_dev(dev);
struct iommu_dma_cookie *cookie = domain->iova_cookie;
- struct iova_domain *iovad = &cookie->iovad;
- size_t iova_off = iova_offset(iovad, phys);
+ size_t iova_off = 0;
dma_addr_t iova;
- size = iova_align(iovad, size + iova_off);
+ if (cookie->type == IOMMU_DMA_IOVA_COOKIE) {
+ iova_off = iova_offset(&cookie->iovad, phys);
+ size = iova_align(&cookie->iovad, size + iova_off);
+ }
+
iova = iommu_dma_alloc_iova(domain, size, dma_get_mask(dev), dev);
if (!iova)
return DMA_ERROR_CODE;
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 90ab0115d78e..fc2765ccdb57 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2055,11 +2055,14 @@ static int domain_context_mapping_one(struct dmar_domain *domain,
if (context_copied(context)) {
u16 did_old = context_domain_id(context);
- if (did_old >= 0 && did_old < cap_ndoms(iommu->cap))
+ if (did_old >= 0 && did_old < cap_ndoms(iommu->cap)) {
iommu->flush.flush_context(iommu, did_old,
(((u16)bus) << 8) | devfn,
DMA_CCMD_MASK_NOBIT,
DMA_CCMD_DEVICE_INVL);
+ iommu->flush.flush_iotlb(iommu, did_old, 0, 0,
+ DMA_TLB_DSI_FLUSH);
+ }
}
pgd = domain->pgd;
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index a27ef570c328..bc1efbfb9ddf 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c
@@ -18,6 +18,7 @@
#include <linux/clk.h>
#include <linux/component.h>
#include <linux/device.h>
+#include <linux/dma-mapping.h>
#include <linux/dma-iommu.h>
#include <linux/err.h>
#include <linux/interrupt.h>