The patch titled
sparc64: use iommu_num_pages function in IOMMU code
has been added to the -mm tree. Its filename is
sparc64-use-iommu_num_pages-function-in-iommu-code.patch
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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: sparc64: use iommu_num_pages function in IOMMU code
From: Joerg Roedel <joerg.roedel@xxxxxxx>
Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
Cc: Muli Ben-Yehuda <muli@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/sparc64/kernel/iommu.c | 7 ++++---
arch/sparc64/kernel/iommu_common.h | 14 ++------------
arch/sparc64/kernel/pci_sun4v.c | 7 ++++---
3 files changed, 10 insertions(+), 18 deletions(-)
diff -puN arch/sparc64/kernel/iommu.c~sparc64-use-iommu_num_pages-function-in-iommu-code arch/sparc64/kernel/iommu.c
--- a/arch/sparc64/kernel/iommu.c~sparc64-use-iommu_num_pages-function-in-iommu-code
+++ a/arch/sparc64/kernel/iommu.c
@@ -575,7 +575,7 @@ static int dma_4u_map_sg(struct device *
}
/* Allocate iommu entries for that segment */
paddr = (unsigned long) SG_ENT_PHYS_ADDRESS(s);
- npages = iommu_nr_pages(paddr, slen);
+ npages = iommu_num_pages(paddr, slen, IO_PAGE_SIZE);
entry = iommu_range_alloc(dev, iommu, npages, &handle);
/* Handle failure */
@@ -647,7 +647,8 @@ iommu_map_failed:
iopte_t *base;
vaddr = s->dma_address & IO_PAGE_MASK;
- npages = iommu_nr_pages(s->dma_address, s->dma_length);
+ npages = iommu_num_pages(s->dma_address, s->dma_length,
+ IO_PAGE_SIZE);
iommu_range_free(iommu, vaddr, npages);
entry = (vaddr - iommu->page_table_map_base)
@@ -715,7 +716,7 @@ static void dma_4u_unmap_sg(struct devic
if (!len)
break;
- npages = iommu_nr_pages(dma_handle, len);
+ npages = iommu_num_pages(dma_handle, len, IO_PAGE_SIZE);
iommu_range_free(iommu, dma_handle, npages);
entry = ((dma_handle - iommu->page_table_map_base)
diff -puN arch/sparc64/kernel/iommu_common.h~sparc64-use-iommu_num_pages-function-in-iommu-code arch/sparc64/kernel/iommu_common.h
--- a/arch/sparc64/kernel/iommu_common.h~sparc64-use-iommu_num_pages-function-in-iommu-code
+++ a/arch/sparc64/kernel/iommu_common.h
@@ -35,17 +35,6 @@
#define SG_ENT_PHYS_ADDRESS(SG) (__pa(sg_virt((SG))))
-static inline unsigned long iommu_nr_pages(unsigned long vaddr,
- unsigned long slen)
-{
- unsigned long npages;
-
- npages = IO_PAGE_ALIGN(vaddr + slen) - (vaddr & IO_PAGE_MASK);
- npages >>= IO_PAGE_SHIFT;
-
- return npages;
-}
-
static inline int is_span_boundary(unsigned long entry,
unsigned long shift,
unsigned long boundary_size,
@@ -53,7 +42,8 @@ static inline int is_span_boundary(unsig
struct scatterlist *sg)
{
unsigned long paddr = SG_ENT_PHYS_ADDRESS(outs);
- int nr = iommu_nr_pages(paddr, outs->dma_length + sg->length);
+ int nr = iommu_num_pages(paddr, outs->dma_length + sg->length,
+ IO_PAGE_SIZE);
return iommu_is_span_boundary(entry, nr, shift, boundary_size);
}
diff -puN arch/sparc64/kernel/pci_sun4v.c~sparc64-use-iommu_num_pages-function-in-iommu-code arch/sparc64/kernel/pci_sun4v.c
--- a/arch/sparc64/kernel/pci_sun4v.c~sparc64-use-iommu_num_pages-function-in-iommu-code
+++ a/arch/sparc64/kernel/pci_sun4v.c
@@ -382,7 +382,7 @@ static int dma_4v_map_sg(struct device *
}
/* Allocate iommu entries for that segment */
paddr = (unsigned long) SG_ENT_PHYS_ADDRESS(s);
- npages = iommu_nr_pages(paddr, slen);
+ npages = iommu_num_pages(paddr, slen, IO_PAGE_SIZE);
entry = iommu_range_alloc(dev, iommu, npages, &handle);
/* Handle failure */
@@ -459,7 +459,8 @@ iommu_map_failed:
unsigned long vaddr, npages;
vaddr = s->dma_address & IO_PAGE_MASK;
- npages = iommu_nr_pages(s->dma_address, s->dma_length);
+ npages = iommu_num_pages(s->dma_address, s->dma_length,
+ IO_PAGE_SIZE);
iommu_range_free(iommu, vaddr, npages);
/* XXX demap? XXX */
s->dma_address = DMA_ERROR_CODE;
@@ -498,7 +499,7 @@ static void dma_4v_unmap_sg(struct devic
if (!len)
break;
- npages = iommu_nr_pages(dma_handle, len);
+ npages = iommu_num_pages(dma_handle, len, IO_PAGE_SIZE);
iommu_range_free(iommu, dma_handle, npages);
entry = ((dma_handle - iommu->page_table_map_base) >> IO_PAGE_SHIFT);
_
Patches currently in -mm which might be from joerg.roedel@xxxxxxx are
origin.patch
linux-next.patch
x86-rename-iommu_num_pages-function-to-iommu_nr_pages.patch
sparc64-rename-iommu_num_pages-function-to-iommu_nr_pages.patch
powerpc-rename-iommu_num_pages-function-to-iommu_nr_pages.patch
introduce-generic-iommu_num_pages-function.patch
x86-convert-gart-driver-to-generic-iommu_num_pages-function.patch
x86-amd-iommu-convert-driver-to-generic-iommu_num_pages-function.patch
x86-convert-calgary-iommu-driver-to-generic-iommu_num_pages-function.patch
powerpc-use-iommu_num_pages-function-in-iommu-code.patch
alpha-use-iommu_num_pages-function-in-iommu-code.patch
sparc64-use-iommu_num_pages-function-in-iommu-code.patch
--
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