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drm/rockchip: drv: add more info about iommu_reserve_map

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Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Change-Id: I7d6120e1c2a78c4b51d69dc0e6c65b021519b9d3
This commit is contained in:
Sandy Huang
2024-12-23 16:30:58 +08:00
committed by Huang Jiachai
parent cc61a7f0e7
commit de1cef0912
1 changed files with 7 additions and 2 deletions
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9
drivers/gpu/drm/rockchip/rockchip_drm_drv.c
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@@ -1467,13 +1467,18 @@ static int rockchip_drm_init_iommu(struct drm_device *drm_dev)
*/
ret = iommu_map(private->domain, 0, 0, (size_t)SZ_2G,
IOMMU_WRITE | IOMMU_READ | IOMMU_PRIV);
if (ret)
if (ret) {
dev_err(drm_dev->dev, "failed to create 0-2G pre mapping\n");
return 0;
}
ret = iommu_map(private->domain, SZ_2G, SZ_2G, (size_t)SZ_2G,
IOMMU_WRITE | IOMMU_READ | IOMMU_PRIV);
if (ret)
if (ret) {
dev_err(drm_dev->dev, "failed to create 2G-4G pre mapping\n");
return 0;
}
dev_info(drm_dev->dev, "Enable iommu reserve map\n");
}
return ret;