e29493c71d
Use #if IS_ENABLED() instead of #ifdef for configurations as vendor module guidelines. Use #if IS_ENABLED(CONFIG_XXX) instead of #ifdef CONFIG_XXX to ensure that the code inside the #if block continues to compile if the config changes to a tristate config in the future. The differences are as follows: 1.#if IS_ENABLED(CONFIG_XXX) evaluates to true when CONFIG_XXX is set to module (=m) or built-in (=y). 2.#ifdef CONFIG_XXX evaluates to true when CONFIG_XXX is set to built-in(=y) , but doesn't when CONFIG_XXX is set to module(=m). Use this only when you're certain you want to do the same thing when the config is set to module or is disabled. Change-Id: Ia806b9b01ad8414d0e4de027a382cb68e7fb4a6a Signed-off-by: GG Hou <quic_renjhou@quicinc.com>
51 行
1.2 KiB
C
51 行
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
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* Copyright (c) 2015-2021, The Linux Foundation. All rights reserved.
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*/
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#ifndef SDE_ROTATOR_SMMU_H
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#define SDE_ROTATOR_SMMU_H
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#include <linux/types.h>
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#include <linux/device.h>
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#include <linux/dma-buf.h>
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#include "sde_rotator_io_util.h"
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enum sde_iommu_domain_type {
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SDE_IOMMU_DOMAIN_ROT_UNSECURE,
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SDE_IOMMU_DOMAIN_ROT_SECURE,
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SDE_IOMMU_MAX_DOMAIN
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};
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int sde_smmu_init(struct device *dev);
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static inline int sde_smmu_dma_data_direction(int dir)
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{
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return dir;
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}
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#if IS_ENABLED(CONFIG_MSM_SDE_ROTATOR)
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int sde_smmu_ctrl(int enable);
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#else
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static inline int sde_smmu_ctrl(int enable)
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{
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return 0;
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}
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#endif /* CONFIG_MSM_SDE_ROTATOR */
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struct dma_buf_attachment *sde_smmu_dma_buf_attach(
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struct dma_buf *dma_buf, struct device *dev, int domain);
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int sde_smmu_map_dma_buf(struct dma_buf *dma_buf,
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struct sg_table *table, int domain, dma_addr_t *iova,
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unsigned long *size, int dir);
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void sde_smmu_unmap_dma_buf(struct sg_table *table, int domain,
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int dir, struct dma_buf *dma_buf);
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int sde_smmu_secure_ctrl(int enable);
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#endif /* SDE_ROTATOR_SMMU_H */
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