| /* |
| * Copyright © 2015 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. |
| */ |
| |
| #include <linux/memfd.h> |
| #include <sys/mman.h> |
| #include <sys/syscall.h> |
| |
| #include "anv_private.h" |
| |
| static inline int |
| memfd_create(const char *name, unsigned int flags) |
| { |
| return syscall(SYS_memfd_create, name, flags); |
| } |
| |
| uint32_t |
| anv_gem_create(struct anv_device *device, size_t size) |
| { |
| int fd = memfd_create("fake bo", MFD_CLOEXEC); |
| if (fd == -1) |
| return 0; |
| |
| assert(fd != 0); |
| |
| if (ftruncate(fd, size) == -1) |
| return 0; |
| |
| return fd; |
| } |
| |
| void |
| anv_gem_close(struct anv_device *device, uint32_t gem_handle) |
| { |
| close(gem_handle); |
| } |
| |
| void* |
| anv_gem_mmap(struct anv_device *device, uint32_t gem_handle, |
| uint64_t offset, uint64_t size, uint32_t flags) |
| { |
| /* Ignore flags, as they're specific to I915_GEM_MMAP. */ |
| (void) flags; |
| |
| return mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, |
| gem_handle, offset); |
| } |
| |
| /* This is just a wrapper around munmap, but it also notifies valgrind that |
| * this map is no longer valid. Pair this with anv_gem_mmap(). |
| */ |
| void |
| anv_gem_munmap(void *p, uint64_t size) |
| { |
| munmap(p, size); |
| } |
| |
| uint32_t |
| anv_gem_userptr(struct anv_device *device, void *mem, size_t size) |
| { |
| return -1; |
| } |
| |
| int |
| anv_gem_wait(struct anv_device *device, uint32_t gem_handle, int64_t *timeout_ns) |
| { |
| return 0; |
| } |
| |
| int |
| anv_gem_execbuffer(struct anv_device *device, |
| struct drm_i915_gem_execbuffer2 *execbuf) |
| { |
| return 0; |
| } |
| |
| int |
| anv_gem_set_tiling(struct anv_device *device, |
| uint32_t gem_handle, uint32_t stride, uint32_t tiling) |
| { |
| return 0; |
| } |
| |
| int |
| anv_gem_set_caching(struct anv_device *device, uint32_t gem_handle, |
| uint32_t caching) |
| { |
| return 0; |
| } |
| |
| int |
| anv_gem_set_domain(struct anv_device *device, uint32_t gem_handle, |
| uint32_t read_domains, uint32_t write_domain) |
| { |
| return 0; |
| } |
| |
| int |
| anv_gem_get_param(int fd, uint32_t param) |
| { |
| unreachable("Unused"); |
| } |
| |
| bool |
| anv_gem_get_bit6_swizzle(int fd, uint32_t tiling) |
| { |
| unreachable("Unused"); |
| } |
| |
| int |
| anv_gem_create_context(struct anv_device *device) |
| { |
| unreachable("Unused"); |
| } |
| |
| int |
| anv_gem_destroy_context(struct anv_device *device, int context) |
| { |
| unreachable("Unused"); |
| } |
| |
| int |
| anv_gem_get_aperture(int fd, uint64_t *size) |
| { |
| unreachable("Unused"); |
| } |
| |
| int |
| anv_gem_handle_to_fd(struct anv_device *device, uint32_t gem_handle) |
| { |
| unreachable("Unused"); |
| } |
| |
| uint32_t |
| anv_gem_fd_to_handle(struct anv_device *device, int fd) |
| { |
| unreachable("Unused"); |
| } |