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authorLinus Torvalds <torvalds@linux-foundation.org>2018-02-16 12:22:33 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-02-16 12:22:33 -0800
commit1e3510b2b053b8253a99511efb668fcc7ae8fcd7 (patch)
tree196d1d212e16fa2f7ddc9fee6a7ddfb3ed163c7e
parentaf27d9403f5b80685b79c88425086edccecaf711 (diff)
parent7bcfab202ca71bece02b283cdd104301c07eece4 (diff)
downloadlinux-stericsson-1e3510b2b053b8253a99511efb668fcc7ae8fcd7.tar.gz
Merge tag 'dma-mapping-4.16-2' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fixes from Christoph Hellwig: "A few dma-mapping fixes for the fallout from the changes in rc1" * tag 'dma-mapping-4.16-2' of git://git.infradead.org/users/hch/dma-mapping: powerpc/macio: set a proper dma_coherent_mask dma-mapping: fix a comment typo dma-direct: comment the dma_direct_free calling convention dma-direct: mark as is_phys ia64: fix build failure with CONFIG_SWIOTLB
-rw-r--r--arch/ia64/kernel/Makefile1
-rw-r--r--drivers/macintosh/macio_asic.c1
-rw-r--r--include/linux/dma-mapping.h2
-rw-r--r--lib/dma-direct.c5
4 files changed, 7 insertions, 2 deletions
diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index 0b4c65a1af25..498f3da3f225 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -41,7 +41,6 @@ ifneq ($(CONFIG_IA64_ESI),)
obj-y += esi_stub.o # must be in kernel proper
endif
obj-$(CONFIG_INTEL_IOMMU) += pci-dma.o
-obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o
obj-$(CONFIG_BINFMT_ELF) += elfcore.o
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index 62f541f968f6..07074820a167 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -375,6 +375,7 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip,
dev->ofdev.dev.of_node = np;
dev->ofdev.archdata.dma_mask = 0xffffffffUL;
dev->ofdev.dev.dma_mask = &dev->ofdev.archdata.dma_mask;
+ dev->ofdev.dev.coherent_dma_mask = dev->ofdev.archdata.dma_mask;
dev->ofdev.dev.parent = parent;
dev->ofdev.dev.bus = &macio_bus_type;
dev->ofdev.dev.release = macio_release_dev;
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 34fe8463d10e..eb9eab4ecd6d 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -578,7 +578,7 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
/*
* This is a hack for the legacy x86 forbid_dac and iommu_sac_force. Please
- * don't use this is new code.
+ * don't use this in new code.
*/
#ifndef arch_dma_supported
#define arch_dma_supported(dev, mask) (1)
diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 40b1f92f2214..c9e8e21cb334 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -84,6 +84,10 @@ again:
return page_address(page);
}
+/*
+ * NOTE: this function must never look at the dma_addr argument, because we want
+ * to be able to use it as a helper for iommu implementations as well.
+ */
void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_addr, unsigned long attrs)
{
@@ -152,5 +156,6 @@ const struct dma_map_ops dma_direct_ops = {
.map_sg = dma_direct_map_sg,
.dma_supported = dma_direct_supported,
.mapping_error = dma_direct_mapping_error,
+ .is_phys = 1,
};
EXPORT_SYMBOL(dma_direct_ops);