/* * Copyright © 2007, 2011, 2013, 2014, 2019 Intel Corporation * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. * */ #ifndef GEM_MMAN_H #define GEM_MMAN_H void *gem_mmap__gtt(int fd, uint32_t handle, uint64_t size, unsigned prot); void *gem_mmap__cpu(int fd, uint32_t handle, uint64_t offset, uint64_t size, unsigned prot); bool gem_mmap__has_wc(int fd); void *gem_mmap__wc(int fd, uint32_t handle, uint64_t offset, uint64_t size, unsigned prot); #ifndef I915_GEM_DOMAIN_WC #define I915_GEM_DOMAIN_WC 0x80 #endif void *__gem_mmap__gtt(int fd, uint32_t handle, uint64_t size, unsigned prot); void *__gem_mmap__cpu(int fd, uint32_t handle, uint64_t offset, uint64_t size, unsigned prot); void *__gem_mmap__wc(int fd, uint32_t handle, uint64_t offset, uint64_t size, unsigned prot); int gem_munmap(void *ptr, uint64_t size); /** * gem_require_mmap_wc: * @fd: open i915 drm file descriptor * * Feature test macro to query whether direct (i.e. cpu access path, bypassing * the gtt) write-combine memory mappings are available. Automatically skips * through igt_require() if not. */ #define gem_require_mmap_wc(fd) igt_require(gem_mmap__has_wc(fd)) #endif /* GEM_MMAN_H */