Current Path : /sys/dev/agp/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/dev/agp/agpvar.h |
/*- * Copyright (c) 2000 Doug Rabson * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: release/9.1.0/sys/dev/agp/agpvar.h 236926 2012-06-11 21:33:02Z kib $ */ #ifndef _PCI_AGPVAR_H_ #define _PCI_AGPVAR_H_ /* * The AGP chipset can be acquired by user or kernel code. If the * chipset has already been acquired, it cannot be acquired by another * user until the previous user has released it. */ enum agp_acquire_state { AGP_ACQUIRE_FREE, AGP_ACQUIRE_USER, AGP_ACQUIRE_KERNEL }; /* * This structure is used to query the state of the AGP system. */ struct agp_info { u_int32_t ai_mode; vm_offset_t ai_aperture_base; vm_size_t ai_aperture_size; vm_size_t ai_memory_allowed; vm_size_t ai_memory_used; u_int32_t ai_devid; }; struct agp_memory_info { vm_size_t ami_size; /* size in bytes */ vm_offset_t ami_physical; /* bogus hack for i810 */ vm_offset_t ami_offset; /* page offset if bound */ int ami_is_bound; /* non-zero if bound */ }; /* * Find the AGP device and return it. */ device_t agp_find_device(void); /* * Return the current owner of the AGP chipset. */ enum agp_acquire_state agp_state(device_t dev); /* * Query the state of the AGP system. */ void agp_get_info(device_t dev, struct agp_info *info); /* * Acquire the AGP chipset for use by the kernel. Returns EBUSY if the * AGP chipset is already acquired by another user. */ int agp_acquire(device_t dev); /* * Release the AGP chipset. */ int agp_release(device_t dev); /* * Enable the agp hardware with the relavent mode. The mode bits are * defined in <dev/agp/agpreg.h> */ int agp_enable(device_t dev, u_int32_t mode); /* * Allocate physical memory suitable for mapping into the AGP * aperture. The value returned is an opaque handle which can be * passed to agp_bind(), agp_unbind() or agp_deallocate(). */ void *agp_alloc_memory(device_t dev, int type, vm_size_t bytes); /* * Free memory which was allocated with agp_allocate(). */ void agp_free_memory(device_t dev, void *handle); /* * Bind memory allocated with agp_allocate() at a given offset within * the AGP aperture. Returns EINVAL if the memory is already bound or * the offset is not at an AGP page boundary. */ int agp_bind_memory(device_t dev, void *handle, vm_offset_t offset); /* * Unbind memory from the AGP aperture. Returns EINVAL if the memory * is not bound. */ int agp_unbind_memory(device_t dev, void *handle); /* * Retrieve information about a memory block allocated with * agp_alloc_memory(). */ void agp_memory_info(device_t dev, void *handle, struct agp_memory_info *mi); #define AGP_NORMAL_MEMORY 0 #define AGP_USER_TYPES (1 << 16) #define AGP_USER_MEMORY (AGP_USER_TYPES) #define AGP_USER_CACHED_MEMORY (AGP_USER_TYPES + 1) #endif /* !_PCI_AGPVAR_H_ */