1#- 2# Copyright (c) 2016 The FreeBSD Foundation 3# 4# This software was developed by Andrew Turner under 5# sponsorship from the FreeBSD Foundation. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27# 28# 29 30INTERFACE msi; 31 32HEADER { 33 #include <machine/bus.h> 34 #include <dev/iommu/iommu_msi.h> 35 36 struct intr_irqsrc; 37}; 38 39# 40# Default implementations of some methods. 41# 42CODE { 43 static int 44 iommu_init(device_t dev, device_t child, struct iommu_domain **domain) 45 { 46 *domain = NULL; 47 return (0); 48 } 49 static void 50 iommu_deinit(device_t dev, device_t child) 51 { 52 } 53}; 54 55METHOD int alloc_msi { 56 device_t dev; 57 device_t child; 58 int count; 59 int maxcount; 60 device_t *pic; 61 struct intr_irqsrc **srcs; 62}; 63 64METHOD int release_msi { 65 device_t dev; 66 device_t child; 67 int count; 68 struct intr_irqsrc **srcs; 69}; 70 71METHOD int alloc_msix { 72 device_t dev; 73 device_t child; 74 device_t *pic; 75 struct intr_irqsrc **src; 76}; 77 78METHOD int release_msix { 79 device_t dev; 80 device_t child; 81 struct intr_irqsrc *src; 82}; 83 84METHOD int map_msi { 85 device_t dev; 86 device_t child; 87 struct intr_irqsrc *src; 88 uint64_t *addr; 89 uint32_t *data; 90}; 91 92METHOD int iommu_init { 93 device_t dev; 94 device_t child; 95 struct iommu_domain **domain; 96} DEFAULT iommu_init; 97 98METHOD void iommu_deinit { 99 device_t dev; 100 device_t child; 101} DEFAULT iommu_deinit; 102