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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>
39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
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* Rewrite, cleanup:
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* Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation
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*/
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#ifndef _ASM_POWERPC_TCE_H
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#define _ASM_POWERPC_TCE_H
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#ifdef __KERNEL__
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#include <asm/iommu.h>
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/*
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* Tces come in two formats, one for the virtual bus and a different
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* format for PCI. PCI TCEs can have hardware or software maintianed
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* coherency.
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*/
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#define TCE_VB 0
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#define TCE_PCI 1
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/* TCE page size is 4096 bytes (1 << 12) */
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#define TCE_SHIFT 12
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#define TCE_PAGE_SIZE (1 << TCE_SHIFT)
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#define TCE_ENTRY_SIZE 8 /* each TCE is 64 bits */
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#define TCE_RPN_MASK 0xfffffffffful /* 40-bit RPN (4K pages) */
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#define TCE_RPN_SHIFT 12
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#define TCE_VALID 0x800 /* TCE valid */
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#define TCE_ALLIO 0x400 /* TCE valid for all lpars */
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#define TCE_PCI_WRITE 0x2 /* write from PCI allowed */
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#define TCE_PCI_READ 0x1 /* read from PCI allowed */
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#define TCE_VB_WRITE 0x1 /* write from VB allowed */
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#endif /* __KERNEL__ */
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#endif /* _ASM_POWERPC_TCE_H */
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