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/*
* 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* this map is no longer valid.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");
}
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