From: Arnd Bergmann Date: Wed, 22 Mar 2006 23:00:04 +0000 (+0100) Subject: [PATCH] powerpc: fix cell iommu setup X-Git-Tag: upstream/snapshot3+hdmi~41276^2~60 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5fa500bfc60f36c54bb20338795cc2facc0425f6;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git [PATCH] powerpc: fix cell iommu setup A small bug crept in the iommu driver when we made it more generic. This patch is needed for boards that have a dma window that does not start at bus address zero. Signed-off-by: Arnd Bergmann Signed-off-by: Paul Mackerras --- diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index 46e7cb9..c8a98be 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -289,7 +289,7 @@ static void cell_do_map_iommu(struct cell_iommu *iommu, ioc_base = iommu->mapped_base; ioc_mmio_base = iommu->mapped_mmio_base; - for (real_address = 0, io_address = 0; + for (real_address = 0, io_address = map_start; io_address <= map_start + map_size; real_address += io_page_size, io_address += io_page_size) { ioste = get_iost_entry(fake_iopt, io_address, io_page_size); @@ -302,7 +302,7 @@ static void cell_do_map_iommu(struct cell_iommu *iommu, set_iopt_cache(ioc_mmio_base, get_ioc_hash_1way(ioste, io_address), get_ioc_tag(ioste, io_address), - get_iopt_entry(real_address-map_start, ioid, IOPT_PROT_RW)); + get_iopt_entry(real_address, ioid, IOPT_PROT_RW)); } }