From: Magnus Damm <magnus.damm@gmail.com>
To: iommu@lists.linux-foundation.org
Cc: laurent.pinchart+renesas@ideasonboard.com,
geert+renesas@glider.be, joro@8bytes.org,
linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
horms+renesas@verge.net.au, Magnus Damm <magnus.damm@gmail.com>
Subject: [PATCH v2 07/11] iommu/ipmmu-vmsa: IPMMU device is 64-bit bus master
Date: Mon, 06 Jun 2016 12:58:31 +0900 [thread overview]
Message-ID: <20160606035831.31763.45061.sendpatchset@little-apple> (raw)
In-Reply-To: <20160606035723.31763.66500.sendpatchset@little-apple>
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);
next prev parent reply other threads:[~2016-06-06 4:09 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-06 3:57 [PATCH v2 00/11] iommu/ipmmu-vmsa: r8a7795 support V2 Magnus Damm
2016-06-06 3:57 ` [PATCH v2 01/11] iommu/ipmmu-vmsa: Introduce features, break out alias Magnus Damm
2016-06-06 3:57 ` [PATCH v2 02/11] iommu/ipmmu-vmsa: Add optional root device feature Magnus Damm
2016-06-06 3:57 ` [PATCH v2 03/11] iommu/ipmmu-vmsa: Enable multi context support Magnus Damm
2016-06-06 3:58 ` [PATCH v2 04/11] iommu/ipmmu-vmsa: Reuse iommu groups Magnus Damm
2016-06-06 3:58 ` [PATCH v2 05/11] iommu/ipmmu-vmsa: Make use of IOMMU_OF_DECLARE() Magnus Damm
2017-02-07 12:59 ` Geert Uytterhoeven
2016-06-06 3:58 ` [PATCH v2 06/11] iommu/ipmmu-vmsa: Teach xlate() to skip disabled iommus Magnus Damm
2016-06-08 0:23 ` Laurent Pinchart
2016-06-06 3:58 ` Magnus Damm [this message]
2016-06-06 3:58 ` [PATCH v2 08/11] iommu/ipmmu-vmsa: Write IMCTR twice Magnus Damm
2016-06-06 3:58 ` [PATCH v2 09/11] iommu/ipmmu-vmsa: Make IMBUSCTR setup optional Magnus Damm
2016-06-06 3:58 ` [PATCH v2 10/11] iommu/ipmmu-vmsa: Allow two bit SL0 Magnus Damm
2016-06-06 3:59 ` [PATCH v2 11/11] iommu/ipmmu-vmsa: Hook up r8a7795 DT matching code Magnus Damm
2016-06-06 7:05 ` [PATCH v2 00/11] iommu/ipmmu-vmsa: r8a7795 support V2 Geert Uytterhoeven
2016-06-21 12:42 ` Joerg Roedel
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