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Groups > linux.kernel > #1414615
| From | Magnus Damm <magnus.damm@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 07/11] iommu/ipmmu-vmsa: IPMMU device is 64-bit bus master |
| Date | 2016-06-06 06:20 +0200 |
| Message-ID | <rGUb7-8fk-3@gated-at.bofh.it> (permalink) |
| References | <rGU1r-8cc-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Magnus Damm <damm+renesas@opensource.se> The r8a7795 IPMMU supports 64-bit bus mastering. Both the coherent DMA mask and the streaming DMA mask are set to unlock the 64-bit address space for coherent allocations and streaming operations. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> --- Changes since V1: - Updated the commit message drivers/iommu/ipmmu-vmsa.c | 1 + 1 file changed, 1 insertion(+) --- 0019/drivers/iommu/ipmmu-vmsa.c +++ work/drivers/iommu/ipmmu-vmsa.c 2016-06-06 11:01:28.730607110 +0900 @@ -1082,6 +1082,7 @@ static int ipmmu_probe(struct platform_d spin_lock_init(&mmu->lock); bitmap_zero(mmu->ctx, IPMMU_CTX_MAX); mmu->features = match->data; + dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); /* Map I/O memory and request IRQ. */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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[PATCH v2 00/11] iommu/ipmmu-vmsa: r8a7795 support V2 Magnus Damm <magnus.damm@gmail.com> - 2016-06-06 06:10 +0200 [PATCH v2 08/11] iommu/ipmmu-vmsa: Write IMCTR twice Magnus Damm <magnus.damm@gmail.com> - 2016-06-06 06:20 +0200 [PATCH v2 07/11] iommu/ipmmu-vmsa: IPMMU device is 64-bit bus master Magnus Damm <magnus.damm@gmail.com> - 2016-06-06 06:20 +0200 Re: [PATCH v2 00/11] iommu/ipmmu-vmsa: r8a7795 support V2 Geert Uytterhoeven <geert@linux-m68k.org> - 2016-06-06 09:10 +0200
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