Messages in this thread Patch in this message | | | From | Ian Campbell <> | Subject | [PATCH 04/11] x86: use dma_map_range when allocating PCI DMA memory with no IOMMU | Date | Mon, 1 Jun 2009 16:32:56 +0100 |
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Replaces use of is_buffer_dma_capable which is going away.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: x86@kernel.org --- arch/x86/kernel/pci-nommu.c | 17 ++++++++++------- 1 files changed, 10 insertions(+), 7 deletions(-)
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c index 71d412a..b6b75a0 100644 --- a/arch/x86/kernel/pci-nommu.c +++ b/arch/x86/kernel/pci-nommu.c @@ -12,13 +12,15 @@ #include <asm/dma.h> static int -check_addr(char *name, struct device *hwdev, dma_addr_t bus, size_t size) +check_addr(char *name, struct device *hwdev, phys_addr_t phys, + size_t size, dma_addr_t *bus) { - if (hwdev && !is_buffer_dma_capable(*hwdev->dma_mask, bus, size)) { + if (hwdev && + !dma_map_range(hwdev, *hwdev->dma_mask, phys, size, bus)) { if (*hwdev->dma_mask >= DMA_BIT_MASK(32)) printk(KERN_ERR "nommu_%s: overflow %Lx+%zu of device mask %Lx\n", - name, (long long)bus, size, + name, (long long)phys, size, (long long)*hwdev->dma_mask); return 0; } @@ -30,9 +32,10 @@ static dma_addr_t nommu_map_page(struct device *dev, struct page *page, enum dma_data_direction dir, struct dma_attrs *attrs) { - dma_addr_t bus = page_to_phys(page) + offset; + phys_addr_t phys = page_to_phys(page) + offset; + dma_addr_t bus; WARN_ON(size == 0); - if (!check_addr("map_single", dev, bus, size)) + if (!check_addr("map_single", dev, phys, size, &bus)) return bad_dma_address; flush_write_buffers(); return bus; @@ -64,8 +67,8 @@ static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg, for_each_sg(sg, s, nents, i) { BUG_ON(!sg_page(s)); - s->dma_address = sg_phys(s); - if (!check_addr("map_sg", hwdev, s->dma_address, s->length)) + if (!check_addr("map_sg", hwdev, sg_phys(s), s->length, + &s->dma_address)) return 0; s->dma_length = s->length; } -- 1.5.6.5
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