The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/include/dt-bindings/dma/dw-dmac.h

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    1 /* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
    2 
    3 #ifndef __DT_BINDINGS_DMA_DW_DMAC_H__
    4 #define __DT_BINDINGS_DMA_DW_DMAC_H__
    5 
    6 /*
    7  * Protection Control bits provide protection against illegal transactions.
    8  * The protection bits[0:2] are one-to-one mapped to AHB HPROT[3:1] signals.
    9  */
   10 #define DW_DMAC_HPROT1_PRIVILEGED_MODE  (1 << 0)        /* Privileged Mode */
   11 #define DW_DMAC_HPROT2_BUFFERABLE       (1 << 1)        /* DMA is bufferable */
   12 #define DW_DMAC_HPROT3_CACHEABLE        (1 << 2)        /* DMA is cacheable */
   13 
   14 #endif /* __DT_BINDINGS_DMA_DW_DMAC_H__ */

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