Revert "scatterlist: use sg_phys()"
commit db0fa0cb0157 "scatterlist: use sg_phys()" did replacements of
the form:
phys_addr_t phys = page_to_phys(sg_page(s));
phys_addr_t phys = sg_phys(s) & PAGE_MASK;
However, this breaks platforms where sizeof(phys_addr_t) >
sizeof(unsigned long). Revert for 4.3 and 4.4 to make room for a
combined helper in 4.5.
Cc: <stable@vger.kernel.org>
Cc: Jens Axboe <axboe@fb.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Fixes: db0fa0cb0157 ("scatterlist: use sg_phys()")
Suggested-by: Joerg Roedel <joro@8bytes.org>
Reported-by: Vitaly Lavrov <vel21ripn@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index e62400e..534a60a 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -1521,7 +1521,7 @@
return -ENOMEM;
for (count = 0, s = sg; count < (size >> PAGE_SHIFT); s = sg_next(s)) {
- phys_addr_t phys = sg_phys(s) & PAGE_MASK;
+ phys_addr_t phys = page_to_phys(sg_page(s));
unsigned int len = PAGE_ALIGN(s->offset + s->length);
if (!is_coherent &&
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index c89da63..bf4dec2 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -61,7 +61,8 @@
/* FIXME this part of code is untested */
for_each_sg(sgl, sg, nents, i) {
sg->dma_address = sg_phys(sg);
- __dma_sync(sg_phys(sg), sg->length, direction);
+ __dma_sync(page_to_phys(sg_page(sg)) + sg->offset,
+ sg->length, direction);
}
return nents;
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index f1042da..ac73876 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2159,7 +2159,7 @@
sg_res = aligned_nrpages(sg->offset, sg->length);
sg->dma_address = ((dma_addr_t)iov_pfn << VTD_PAGE_SHIFT) + sg->offset;
sg->dma_length = sg->length;
- pteval = (sg_phys(sg) & PAGE_MASK) | prot;
+ pteval = page_to_phys(sg_page(sg)) | prot;
phys_pfn = pteval >> VTD_PAGE_SHIFT;
}
@@ -3704,7 +3704,7 @@
for_each_sg(sglist, sg, nelems, i) {
BUG_ON(!sg_page(sg));
- sg->dma_address = sg_phys(sg);
+ sg->dma_address = page_to_phys(sg_page(sg)) + sg->offset;
sg->dma_length = sg->length;
}
return nelems;
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index abae363..0e3b009 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -1430,7 +1430,7 @@
min_pagesz = 1 << __ffs(domain->ops->pgsize_bitmap);
for_each_sg(sg, s, nents, i) {
- phys_addr_t phys = sg_phys(s);
+ phys_addr_t phys = page_to_phys(sg_page(s)) + s->offset;
/*
* We are mapping on IOMMU page boundaries, so offset within
diff --git a/drivers/staging/android/ion/ion_chunk_heap.c b/drivers/staging/android/ion/ion_chunk_heap.c
index 195c41d..0813163 100644
--- a/drivers/staging/android/ion/ion_chunk_heap.c
+++ b/drivers/staging/android/ion/ion_chunk_heap.c
@@ -81,7 +81,7 @@
err:
sg = table->sgl;
for (i -= 1; i >= 0; i--) {
- gen_pool_free(chunk_heap->pool, sg_phys(sg) & PAGE_MASK,
+ gen_pool_free(chunk_heap->pool, page_to_phys(sg_page(sg)),
sg->length);
sg = sg_next(sg);
}
@@ -109,7 +109,7 @@
DMA_BIDIRECTIONAL);
for_each_sg(table->sgl, sg, table->nents, i) {
- gen_pool_free(chunk_heap->pool, sg_phys(sg) & PAGE_MASK,
+ gen_pool_free(chunk_heap->pool, page_to_phys(sg_page(sg)),
sg->length);
}
chunk_heap->allocated -= allocated_size;