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1a59d1b8e0
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 as published by the free software foundation either version 2 of the license or at your option any later version 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 inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
44 lines
1 KiB
C
44 lines
1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp.
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* <benh@kernel.crashing.org>
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*/
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#ifndef _ASM_POWERPC_DCR_MMIO_H
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#define _ASM_POWERPC_DCR_MMIO_H
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#ifdef __KERNEL__
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#include <asm/io.h>
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typedef struct {
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void __iomem *token;
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unsigned int stride;
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unsigned int base;
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} dcr_host_mmio_t;
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static inline bool dcr_map_ok_mmio(dcr_host_mmio_t host)
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{
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return host.token != NULL;
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}
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extern dcr_host_mmio_t dcr_map_mmio(struct device_node *dev,
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unsigned int dcr_n,
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unsigned int dcr_c);
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extern void dcr_unmap_mmio(dcr_host_mmio_t host, unsigned int dcr_c);
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static inline u32 dcr_read_mmio(dcr_host_mmio_t host, unsigned int dcr_n)
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{
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return in_be32(host.token + ((host.base + dcr_n) * host.stride));
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}
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static inline void dcr_write_mmio(dcr_host_mmio_t host,
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unsigned int dcr_n,
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u32 value)
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{
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out_be32(host.token + ((host.base + dcr_n) * host.stride), value);
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}
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#endif /* __KERNEL__ */
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#endif /* _ASM_POWERPC_DCR_MMIO_H */
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