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From: Thierry Reding <thierry.reding@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>
Cc: linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: [PATCH 08/14] drm/tegra: vic: Inherit DMA mask from host1x
Date: Mon, 14 Oct 2019 14:50:43 +0200	[thread overview]
Message-ID: <20191014125049.425101-9-thierry.reding@gmail.com> (raw)
In-Reply-To: <20191014125049.425101-1-thierry.reding@gmail.com>

From: Thierry Reding <treding@nvidia.com>

VIC, just like all other host1x clients, has the same addressing range
as its parent host1x device. Inherit the DMA mask to reflect that.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 drivers/gpu/drm/tegra/vic.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/tegra/vic.c b/drivers/gpu/drm/tegra/vic.c
index 748798f2cdc8..d60e479cde92 100644
--- a/drivers/gpu/drm/tegra/vic.c
+++ b/drivers/gpu/drm/tegra/vic.c
@@ -385,6 +385,13 @@ static int vic_probe(struct platform_device *pdev)
 	struct vic *vic;
 	int err;
 
+	/* inherit DMA mask from host1x parent */
+	err = dma_coerce_mask_and_coherent(dev, *dev->parent->dma_mask);
+	if (err < 0) {
+		dev_err(&pdev->dev, "failed to set DMA mask: %d\n", err);
+		return err;
+	}
+
 	vic = devm_kzalloc(dev, sizeof(*vic), GFP_KERNEL);
 	if (!vic)
 		return -ENOMEM;
-- 
2.23.0

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  parent reply	other threads:[~2019-10-14 12:50 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-14 12:50 [PATCH 00/14] drm/tegra: Miscellaneous cleanups Thierry Reding
2019-10-14 12:50 ` [PATCH 01/14] gpu: host1x: Do not limit DMA segment size Thierry Reding
2019-10-14 12:50 ` [PATCH 02/14] gpu: host1x: Remove gratuitous blank line Thierry Reding
2019-10-14 12:50 ` [PATCH 03/14] gpu: host1x: Explicitly initialize host1x_info structures Thierry Reding
2019-10-14 12:50 ` [PATCH 04/14] gpu: host1x: Request channels for clients, not devices Thierry Reding
2019-10-14 12:50 ` [PATCH 05/14] drm/tegra: Inherit device DMA parameters from host1x Thierry Reding
2019-10-14 12:50 ` [PATCH 06/14] drm/tegra: Use DRM_DEBUG_DRIVER for driver messages Thierry Reding
2019-10-14 12:50 ` [PATCH 07/14] drm/tegra: vic: Skip stream ID programming without IOMMU Thierry Reding
2019-10-14 12:50 ` Thierry Reding [this message]
2019-10-14 12:50 ` [PATCH 09/14] drm/tegra: vic: Use common IOMMU attach/detach code Thierry Reding
2019-10-14 12:50 ` [PATCH 10/14] drm/tegra: Move IOMMU group into host1x client Thierry Reding
2019-10-14 14:06   ` kbuild test robot
2019-10-16 15:33   ` Dmitry Osipenko
2019-10-18 11:05     ` Dmitry Osipenko
2019-10-14 12:50 ` [PATCH 11/14] drm/tegra: gem: Rename paddr -> iova Thierry Reding
2019-10-14 12:50 ` [PATCH 12/14] drm/tegra: gem: Use dma_get_sgtable() Thierry Reding
2019-10-14 12:50 ` [PATCH 13/14] drm/tegra: gem: Always map SG tables for DMA-BUFs Thierry Reding
2019-10-14 12:50 ` [PATCH 14/14] drm/tegra: gem: Use sg_alloc_table_from_pages() Thierry Reding

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