forked from Minki/linux
d94d71cb45
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation 51 franklin street fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 67 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141333.953658117@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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*
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* Copyright (C) 2013 Freescale Semiconductor, Inc.
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*/
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#ifndef __FSL_PAMU_DOMAIN_H
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#define __FSL_PAMU_DOMAIN_H
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#include "fsl_pamu.h"
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struct dma_window {
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phys_addr_t paddr;
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u64 size;
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int valid;
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int prot;
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};
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struct fsl_dma_domain {
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/*
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* Indicates the geometry size for the domain.
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* This would be set when the geometry is
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* configured for the domain.
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*/
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dma_addr_t geom_size;
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/*
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* Number of windows assocaited with this domain.
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* During domain initialization, it is set to the
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* the maximum number of subwindows allowed for a LIODN.
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* Minimum value for this is 1 indicating a single PAMU
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* window, without any sub windows. Value can be set/
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* queried by set_attr/get_attr API for DOMAIN_ATTR_WINDOWS.
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* Value can only be set once the geometry has been configured.
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*/
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u32 win_cnt;
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/*
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* win_arr contains information of the configured
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* windows for a domain. This is allocated only
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* when the number of windows for the domain are
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* set.
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*/
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struct dma_window *win_arr;
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/* list of devices associated with the domain */
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struct list_head devices;
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/* dma_domain states:
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* mapped - A particular mapping has been created
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* within the configured geometry.
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* enabled - DMA has been enabled for the given
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* domain. This translates to setting of the
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* valid bit for the primary PAACE in the PAMU
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* PAACT table. Domain geometry should be set and
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* it must have a valid mapping before DMA can be
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* enabled for it.
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*
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*/
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int mapped;
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int enabled;
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/* stash_id obtained from the stash attribute details */
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u32 stash_id;
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struct pamu_stash_attribute dma_stash;
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u32 snoop_id;
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struct iommu_domain iommu_domain;
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spinlock_t domain_lock;
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};
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/* domain-device relationship */
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struct device_domain_info {
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struct list_head link; /* link to domain siblings */
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struct device *dev;
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u32 liodn;
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struct fsl_dma_domain *domain; /* pointer to domain */
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};
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#endif /* __FSL_PAMU_DOMAIN_H */
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