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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.
*
* Authors:
* Ankitprasad Sharma <ankitprasad.r.sharma at intel.com>
*
*/
/** @file gem_create.c
*
* This is a test for the extended and old gem_create ioctl, that
* includes allocation of object from stolen memory and shmem.
*
* The goal is to simply ensure that basics work and invalid input
* combinations are rejected.
*/
#include <stdlib.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <inttypes.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <getopt.h>
#include <drm.h>
#include "ioctl_wrappers.h"
#include "intel_bufmgr.h"
#include "intel_batchbuffer.h"
#include "intel_io.h"
#include "intel_chipset.h"
#include "igt_aux.h"
#include "drmtest.h"
#include "drm.h"
#include "i915_drm.h"
IGT_TEST_DESCRIPTION("This is a test for the extended & old gem_create ioctl,"
" that includes allocation of object from stolen memory"
" and shmem.");
#define CLEAR(s) memset(&s, 0, sizeof(s))
#define PAGE_SIZE 4096
struct local_i915_gem_create_v2 {
uint64_t size;
uint32_t handle;
uint32_t pad;
#define I915_CREATE_PLACEMENT_STOLEN (1<<0)
uint32_t flags;
} create;
#define LOCAL_IOCTL_I915_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_CREATE, struct local_i915_gem_create_v2)
static void invalid_flag_test(int fd)
{
int ret;
gem_require_stolen_support(fd);
create.handle = 0;
create.size = PAGE_SIZE;
create.flags = ~I915_CREATE_PLACEMENT_STOLEN;
ret = drmIoctl(fd, LOCAL_IOCTL_I915_GEM_CREATE, &create);
igt_assert(ret <= 0);
create.flags = ~0;
ret = drmIoctl(fd, LOCAL_IOCTL_I915_GEM_CREATE, &create);
igt_assert(ret <= 0);
}
static void invalid_size_test(int fd)
{
uint32_t handle;
igt_assert_eq(__gem_create(fd, 0, &handle), -EINVAL);
}
/*
* Creating an object with non-aligned size and trying to access it with an
* offset, which is greater than the requested size but smaller than the
* object's last page boundary. pwrite here must be successful.
*/
static void valid_nonaligned_size(int fd)
{
int handle;
char buf[PAGE_SIZE];
handle = gem_create(fd, PAGE_SIZE / 2);
gem_write(fd, handle, PAGE_SIZE / 2, buf, PAGE_SIZE / 2);
gem_close(fd, handle);
}
/*
* Creating an object with non-aligned size and trying to access it with an
* offset, which is greater than the requested size and larger than the
* object's last page boundary. pwrite here must fail.
*/
static void invalid_nonaligned_size(int fd)
{
int handle;
char buf[PAGE_SIZE];
struct drm_i915_gem_pwrite gem_pwrite;
handle = gem_create(fd, PAGE_SIZE / 2);
CLEAR(gem_pwrite);
gem_pwrite.handle = handle;
gem_pwrite.offset = PAGE_SIZE / 2;
gem_pwrite.size = PAGE_SIZE;
gem_pwrite.data_ptr = to_user_pointer(buf);
/* This should fail. Hence cannot use gem_write. */
igt_assert(drmIoctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &gem_pwrite));
gem_close(fd, handle);
}
igt_main
{
int fd = -1;
igt_skip_on_simulation();
igt_fixture {
fd = drm_open_driver(DRIVER_INTEL);
}
igt_subtest("stolen-invalid-flag")
invalid_flag_test(fd);
igt_subtest("create-invalid-size")
invalid_size_test(fd);
igt_subtest("create-valid-nonaligned")
valid_nonaligned_size(fd);
igt_subtest("create-invalid-nonaligned")
invalid_nonaligned_size(fd);
}
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