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8a22a3e1e7
Inclusion of include/dma-iommu.h when CONFIG_IOMMU_DMA is not selected
results in the following splat:
In file included from drivers/irqchip/irq-gic-v3-mbi.c:20:0:
./include/linux/dma-iommu.h:95:69: error: unknown type name ‘dma_addr_t’
static inline int iommu_get_msi_cookie(struct iommu_domain *domain, dma_addr_t base)
^~~~~~~~~~
./include/linux/dma-iommu.h:108:74: warning: ‘struct list_head’ declared inside parameter list will not be visible outside of this definition or declaration
static inline void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list)
^~~~~~~~~
scripts/Makefile.build:312: recipe for target 'drivers/irqchip/irq-gic-v3-mbi.o' failed
Fix it by including linux/types.h.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Rob Herring <robh@kernel.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lkml.kernel.org/r/20180508121438.11301-5-marc.zyngier@arm.com
114 lines
3.6 KiB
C
114 lines
3.6 KiB
C
/*
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* Copyright (C) 2014-2015 ARM Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __DMA_IOMMU_H
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#define __DMA_IOMMU_H
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#ifdef __KERNEL__
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#include <linux/types.h>
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#include <asm/errno.h>
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#ifdef CONFIG_IOMMU_DMA
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#include <linux/dma-mapping.h>
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#include <linux/iommu.h>
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#include <linux/msi.h>
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int iommu_dma_init(void);
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/* Domain management interface for IOMMU drivers */
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int iommu_get_dma_cookie(struct iommu_domain *domain);
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int iommu_get_msi_cookie(struct iommu_domain *domain, dma_addr_t base);
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void iommu_put_dma_cookie(struct iommu_domain *domain);
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/* Setup call for arch DMA mapping code */
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int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base,
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u64 size, struct device *dev);
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/* General helpers for DMA-API <-> IOMMU-API interaction */
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int dma_info_to_prot(enum dma_data_direction dir, bool coherent,
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unsigned long attrs);
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/*
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* These implement the bulk of the relevant DMA mapping callbacks, but require
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* the arch code to take care of attributes and cache maintenance
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*/
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struct page **iommu_dma_alloc(struct device *dev, size_t size, gfp_t gfp,
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unsigned long attrs, int prot, dma_addr_t *handle,
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void (*flush_page)(struct device *, const void *, phys_addr_t));
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void iommu_dma_free(struct device *dev, struct page **pages, size_t size,
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dma_addr_t *handle);
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int iommu_dma_mmap(struct page **pages, size_t size, struct vm_area_struct *vma);
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dma_addr_t iommu_dma_map_page(struct device *dev, struct page *page,
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unsigned long offset, size_t size, int prot);
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int iommu_dma_map_sg(struct device *dev, struct scatterlist *sg,
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int nents, int prot);
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/*
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* Arch code with no special attribute handling may use these
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* directly as DMA mapping callbacks for simplicity
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*/
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void iommu_dma_unmap_page(struct device *dev, dma_addr_t handle, size_t size,
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enum dma_data_direction dir, unsigned long attrs);
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void iommu_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
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enum dma_data_direction dir, unsigned long attrs);
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dma_addr_t iommu_dma_map_resource(struct device *dev, phys_addr_t phys,
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size_t size, enum dma_data_direction dir, unsigned long attrs);
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void iommu_dma_unmap_resource(struct device *dev, dma_addr_t handle,
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size_t size, enum dma_data_direction dir, unsigned long attrs);
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int iommu_dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
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/* The DMA API isn't _quite_ the whole story, though... */
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void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg);
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void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list);
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#else
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struct iommu_domain;
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struct msi_msg;
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struct device;
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static inline int iommu_dma_init(void)
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{
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return 0;
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}
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static inline int iommu_get_dma_cookie(struct iommu_domain *domain)
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{
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return -ENODEV;
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}
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static inline int iommu_get_msi_cookie(struct iommu_domain *domain, dma_addr_t base)
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{
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return -ENODEV;
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}
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static inline void iommu_put_dma_cookie(struct iommu_domain *domain)
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{
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}
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static inline void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg)
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{
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}
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static inline void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list)
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{
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}
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#endif /* CONFIG_IOMMU_DMA */
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#endif /* __KERNEL__ */
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#endif /* __DMA_IOMMU_H */
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