dev.c (44156eee91ba6f027afbfd6a39016c0e7e31c8e9) dev.c (af1cbfb9bf0fe079ca328231451fd4db8b3eafec)
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Tegra host1x driver
4 *
5 * Copyright (c) 2010-2013, NVIDIA Corporation.
6 */
7
8#include <linux/clk.h>

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13#include <linux/of_device.h>
14#include <linux/of.h>
15#include <linux/slab.h>
16
17#define CREATE_TRACE_POINTS
18#include <trace/events/host1x.h>
19#undef CREATE_TRACE_POINTS
20
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Tegra host1x driver
4 *
5 * Copyright (c) 2010-2013, NVIDIA Corporation.
6 */
7
8#include <linux/clk.h>

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13#include <linux/of_device.h>
14#include <linux/of.h>
15#include <linux/slab.h>
16
17#define CREATE_TRACE_POINTS
18#include <trace/events/host1x.h>
19#undef CREATE_TRACE_POINTS
20
21#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU)
22#include <asm/dma-iommu.h>
23#endif
24
25#include "bus.h"
26#include "channel.h"
27#include "debug.h"
28#include "dev.h"
29#include "intr.h"
30
31#include "hw/host1x01.h"
32#include "hw/host1x02.h"

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271 }
272
273 host->rst = devm_reset_control_get(&pdev->dev, "host1x");
274 if (IS_ERR(host->rst)) {
275 err = PTR_ERR(host->rst);
276 dev_err(&pdev->dev, "failed to get reset: %d\n", err);
277 return err;
278 }
21#include "bus.h"
22#include "channel.h"
23#include "debug.h"
24#include "dev.h"
25#include "intr.h"
26
27#include "hw/host1x01.h"
28#include "hw/host1x02.h"

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267 }
268
269 host->rst = devm_reset_control_get(&pdev->dev, "host1x");
270 if (IS_ERR(host->rst)) {
271 err = PTR_ERR(host->rst);
272 dev_err(&pdev->dev, "failed to get reset: %d\n", err);
273 return err;
274 }
279#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU)
280 if (host->dev->archdata.mapping) {
281 struct dma_iommu_mapping *mapping =
282 to_dma_iommu_mapping(host->dev);
283 arm_iommu_detach_device(host->dev);
284 arm_iommu_release_mapping(mapping);
285 }
286#endif
275
287 if (IS_ENABLED(CONFIG_TEGRA_HOST1X_FIREWALL))
288 goto skip_iommu;
289
276 if (IS_ENABLED(CONFIG_TEGRA_HOST1X_FIREWALL))
277 goto skip_iommu;
278
279 if (iommu_get_domain_for_dev(&pdev->dev))
280 goto skip_iommu;
281
290 host->group = iommu_group_get(&pdev->dev);
291 if (host->group) {
292 struct iommu_domain_geometry *geometry;
293 u64 mask = dma_get_mask(host->dev);
294 dma_addr_t start, end;
295 unsigned long order;
296
297 err = iova_cache_get();

--- 165 unchanged lines hidden --- 		282 host->group = iommu_group_get(&pdev->dev);
283 if (host->group) {
284 struct iommu_domain_geometry *geometry;
285 u64 mask = dma_get_mask(host->dev);
286 dma_addr_t start, end;
287 unsigned long order;
288
289 err = iova_cache_get();

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