dma_mmap_attrs
Buffers allocated with this attribute can be only passed to user space by calling dma_mmap_attrs(). By using this API, you are guaranteeing that you won't ... , 1、在驱动实现的mmap接口函数中，可以使用dma_mmap_attrs把外部sensor申请的DMA缓冲区mmap到用户空间，此时之前申请DMA缓冲区的 ..., 在dma_mmap_attrs 中又会掉用get_dma_ops 来得到dma的ops static inline int dma_mmap_attrs(struct device *dev, struct vm_area_struct *vma, ..., 1、在驱动实现的mmap接口函数中，可以使用dma_mmap_attrs把外部sensor申请的DMA缓冲区mmap到用户空间，此时之前申请DMA缓冲区的 ...,Defined in 1 files: include/asm-generic/dma-mapping-common.h, line 196 (as a function). Referenced in 3 files: drivers/gpu/drm/exynos/exynos_drm_fbdev.c, ... ,Defined in 1 files: include/asm-generic/dma-mapping-common.h, line 196 (as a function). Referenced in 1 files: include/asm-generic/dma-mapping-common.h. ,Defined in 1 files: include/asm-generic/dma-mapping-common.h, line 196 (as a function). Referenced in 3 files: drivers/gpu/drm/exynos/exynos_drm_fbdev.c, ... ,Defined in 1 files: include/asm-generic/dma-mapping-common.h, line 210 (as a function). Referenced in 5 files: drivers/gpu/drm/exynos/exynos_drm_fbdev.c, ... ,Defined in 1 files: include/asm-generic/dma-mapping-common.h, line 211 (as a function). Referenced in 5 files: drivers/gpu/drm/exynos/exynos_drm_fbdev.c, ... ,Defined in 4 files: include/linux/dma-mapping.h, line 542 (as a function) · include/linux/dma-mapping.h, line 456 (as a prototype) · kernel/dma/mapping.c, line ...
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 dma_mmap_attrs 相關參考資料
DMA attributes ============== This document describes the ...
Buffers allocated with this attribute can be only passed to user space by calling dma_mmap_attrs(). By using this API, you are guaranteeing that you won't ... https://www.kernel.org DMA buffer及内存映射相关 Linux kernel技术问答 蜗窝讨论区 - 蜗窝科技
1、在驱动实现的mmap接口函数中，可以使用dma_mmap_attrs把外部sensor申请的DMA缓冲区mmap到用户空间，此时之前申请DMA缓冲区的 ... http://www.wowotech.net dma_mmap_coherent 如何和iommu联系在一起呢？ - jason的笔记 ...
在dma_mmap_attrs 中又会掉用get_dma_ops 来得到dma的ops static inline int dma_mmap_attrs(struct device *dev, struct vm_area_struct *vma, ... https://blog.csdn.net Linux DMA Engine framework(2)_功能介绍及解接口分析 - 蜗窝科技
1、在驱动实现的mmap接口函数中，可以使用dma_mmap_attrs把外部sensor申请的DMA缓冲区mmap到用户空间，此时之前申请DMA缓冲区的 ... http://www.wowotech.net Linux source code: dma_mmap_attrs identifier (v3.12.36) - Bootlin
Defined in 1 files: include/asm-generic/dma-mapping-common.h, line 196 (as a function). Referenced in 3 files: drivers/gpu/drm/exynos/exynos_drm_fbdev.c, ... https://elixir.bootlin.com Linux source code: dma_mmap_attrs identifier (v3.7) - Bootlin
Defined in 1 files: include/asm-generic/dma-mapping-common.h, line 196 (as a function). Referenced in 1 files: include/asm-generic/dma-mapping-common.h. https://elixir.bootlin.com Linux source code: dma_mmap_attrs identifier (v3.8) - Bootlin
Defined in 1 files: include/asm-generic/dma-mapping-common.h, line 196 (as a function). Referenced in 3 files: drivers/gpu/drm/exynos/exynos_drm_fbdev.c, ... https://elixir.bootlin.com Linux source code: dma_mmap_attrs identifier (v4.2) - Bootlin
Defined in 1 files: include/asm-generic/dma-mapping-common.h, line 210 (as a function). Referenced in 5 files: drivers/gpu/drm/exynos/exynos_drm_fbdev.c, ... https://elixir.bootlin.com Linux source code: dma_mmap_attrs identifier (v4.3) - Bootlin
Defined in 1 files: include/asm-generic/dma-mapping-common.h, line 211 (as a function). Referenced in 5 files: drivers/gpu/drm/exynos/exynos_drm_fbdev.c, ... https://elixir.bootlin.com Linux source code: dma_mmap_attrs identifier (v5.0.3) - Bootlin
Defined in 4 files: include/linux/dma-mapping.h, line 542 (as a function) · include/linux/dma-mapping.h, line 456 (as a prototype) · kernel/dma/mapping.c, line ... https://elixir.bootlin.com |