/*
* Copyright © 2016 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 "../i915_selftest.h"
#include "mock_gem_device.h"
#include "mock_dmabuf.h"
static int igt_dmabuf_export(void *arg)
{
struct drm_i915_private *i915 = arg;
struct drm_i915_gem_object *obj;
struct dma_buf *dmabuf;
obj = i915_gem_object_create(i915, PAGE_SIZE);
if (IS_ERR(obj))
return PTR_ERR(obj);
dmabuf = i915_gem_prime_export(&i915->drm, &obj->base, 0);
i915_gem_object_put(obj);
if (IS_ERR(dmabuf)) {
pr_err("i915_gem_prime_export failed with err=%d\n",
(int)PTR_ERR(dmabuf));
return PTR_ERR(dmabuf);
}
dma_buf_put(dmabuf);
return 0;
}
static int igt_dmabuf_import_self(void *arg)
{
struct drm_i915_private *i915 = arg;
struct drm_i915_gem_object *obj;
struct drm_gem_object *import;
struct dma_buf *dmabuf;
int err;
obj = i915_gem_object_create(i915, PAGE_SIZE);
if (IS_ERR(obj))
return PTR_ERR(obj);
dmabuf = i915_gem_prime_export(&i915->drm, &obj->base, 0);
if (IS_ERR(dmabuf)) {
pr_err("i915_gem_prime_export failed with err=%d\n",
(int)PTR_ERR(dmabuf));
err = PTR_ERR(dmabuf);
goto out;
}
import = i915_gem_prime_import(&i915->drm, dmabuf);
if (IS_ERR(import)) {
pr_err("i915_gem_prime_import failed with err=%d\n",
(int)PTR_ERR(import));
err = PTR_ERR(import);
goto out_dmabuf;
}
if (import != &obj->base) {
pr_err("i915_gem_prime_import created a new object!\n");
err = -EINVAL;
goto out_import;
}
err = 0;
out_import:
i915_gem_object_put(to_intel_bo(import));
out_dmabuf:
dma_buf_put(dmabuf);
out:
i915_gem_object_put(obj);
return err;
}
static int igt_dmabuf_import(void *arg)
{
struct drm_i915_private *i915 = arg;
struct drm_i915_gem_object *obj;
struct dma_buf *dmabuf;
void *obj_map, *dma_map;
u32 pattern[] = { 0, 0xaa, 0xcc, 0x55, 0xff };
int err, i;
dmabuf = mock_dmabuf(1);
if (IS_ERR(dmabuf))
return PTR_ERR(dmabuf);
obj = to_intel_bo(i915_gem_prime_import(&i915->drm, dmabuf));
if (IS_ERR(obj)) {
pr_err("i915_gem_prime_import failed with err=%d\n",
(int)PTR_ERR(obj));
err = PTR_ERR(obj);
goto out_dmabuf;
}
if (obj->base.dev != &i915->drm) {
pr_err("i915_gem_prime_import created a non-i915 object!\n");
err = -EINVAL;
goto out_obj;
}
if (obj->base.size != PAGE_SIZE) {
pr_err("i915_gem_prime_import is wrong size found %lld, expected %ld\n",
(long long)obj->base.size, PAGE_SIZE);
err = -EINVAL;
goto out_obj;
}
dma_map = dma_buf_vmap(dmabuf);
if (!dma_map) {
pr_err("dma_buf_vmap failed\n");
err = -ENOMEM;
goto out_obj;
}
if (0) { /* Can not yet map dmabuf */
obj_map = i915_gem_object_pin_map(obj, I915_MAP_WB);
if (IS_ERR(obj_map)) {
err = PTR_ERR(obj_map);
pr_err("i915_gem_object_pin_map failed with err=%d\n", err);
goto out_dma_map;
}
for (i = 0; i < ARRAY_SIZE(pattern); i++) {
memset(dma_map, pattern[i], PAGE_SIZE);
if (memchr_inv(obj_map, pattern[i], PAGE_SIZE)) {
err = -EINVAL;
pr_err("imported vmap not all set to %x!\n", pattern[i]);
i915_gem_object_unpin_map(obj);
goto out_dma_map;
}
}
for (i = 0; i < ARRAY_SIZE(pattern); i++) {
memset(obj_map, pattern[i], PAGE_SIZE);
if (memchr_inv(dma_map, pattern[i], PAGE_SIZE)) {
err = -EINVAL;
pr_err("exported vmap not all set to %x!\n", pattern[i]);
i915_gem_object_unpin_map(obj);
goto out_dma_map;
}
}
i915_gem_object_unpin_map(obj);
}
err = 0;
out_dma_map:
dma_buf_vunmap(dmabuf, dma_map);
out_obj:
i915_gem_object_put(obj);
out_dmabuf:
dma_buf_put(dmabuf);
return err;
}
static int igt_dmabuf_import_ownership(void *arg)
{
struct drm_i915_private *i915 = arg;
struct drm_i915_gem_object *obj;
struct dma_buf *dmabuf;
void *ptr;
int err;
dmabuf = mock_dmabuf(1);
if (IS_ERR(dmabuf))
return PTR_ERR(dmabuf);
ptr = dma_buf_vmap(dmabuf);
if (!ptr) {
pr_err("dma_buf_vmap failed\n");
err = -ENOMEM;
goto err_dmabuf;
}
memset(ptr, 0xc5, PAGE_SIZE);
dma_buf_vunmap(dmabuf, ptr);
obj = to_intel_bo(i915_gem_prime_import(&i915->drm, dmabuf));
if (IS_ERR(obj)) {
pr_err("i915_gem_prime_import failed with err=%d\n",
(int)PTR_ERR(obj));
err = PTR_ERR(obj);
goto err_dmabuf;
}
dma_buf_put(dmabuf);
err = i915_gem_object_pin_pages(obj);
if (err) {
pr_err("i915_gem_object_pin_pages failed with err=%d\n", err);
goto out_obj;
}
err = 0;
i915_gem_object_unpin_pages(obj);
out_obj:
i915_gem_object_put(obj);
return err;
err_dmabuf:
dma_buf_put(dmabuf);
return err;
}
static int igt_dmabuf_export_vmap(void *arg)
{
struct drm_i915_private *i915 = arg;
struct drm_i915_gem_object *obj;
struct dma_buf *dmabuf;
void *ptr;
int err;
obj = i915_gem_object_create(i915, PAGE_SIZE);
if (IS_ERR(obj))
return PTR_ERR(obj);
dmabuf = i915_gem_prime_export(&i915->drm, &obj->base, 0);
if (IS_ERR(dmabuf)) {
pr_err("i915_gem_prime_export failed with err=%d\n",
(int)PTR_ERR(dmabuf));
err = PTR_ERR(dmabuf);
goto err_obj;
}
i915_gem_object_put(obj);
ptr = dma_buf_vmap(dmabuf);
if (!ptr) {
pr_err("dma_buf_vmap failed\n");
err = -ENOMEM;
goto out;
}
if (memchr_inv(ptr, 0, dmabuf->size)) {
pr_err("Exported object not initialiased to zero!\n");
err = -EINVAL;
goto out;
}
memset(ptr, 0xc5, dmabuf->size);
err = 0;
dma_buf_vunmap(dmabuf, ptr);
out:
dma_buf_put(dmabuf);
return err;
err_obj:
i915_gem_object_put(obj);
return err;
}
static int igt_dmabuf_export_kmap(void *arg)
{
struct drm_i915_private *i915 = arg;
struct drm_i915_gem_object *obj;
struct dma_buf *dmabuf;
void *ptr;
int err;
obj = i915_gem_object_create(i915, 2*PAGE_SIZE);
if (IS_ERR(obj))
return PTR_ERR(obj);
dmabuf = i915_gem_prime_export(&i915->drm, &obj->base, 0);
i915_gem_object_put(obj);
if (IS_ERR(dmabuf)) {
err = PTR_ERR(dmabuf);
pr_err("i915_gem_prime_export failed with err=%d\n", err);
return err;
}
ptr = dma_buf_kmap(dmabuf, 0);
if (!ptr) {
pr_err("dma_buf_kmap failed\n");
err = -ENOMEM;
goto err;
}
if (memchr_inv(ptr, 0, PAGE_SIZE)) {
dma_buf_kunmap(dmabuf, 0, ptr);
pr_err("Exported page[0] not initialiased to zero!\n");
err = -EINVAL;
goto err;
}
memset(ptr, 0xc5, PAGE_SIZE);
dma_buf_kunmap(dmabuf, 0, ptr);
ptr = i915_gem_object_pin_map(obj, I915_MAP_WB);
if (IS_ERR(ptr)) {
err = PTR_ERR(ptr);
pr_err("i915_gem_object_pin_map failed with err=%d\n", err);
goto err;
}
memset(ptr + PAGE_SIZE, 0xaa, PAGE_SIZE);
i915_gem_object_unpin_map(obj);
ptr = dma_buf_kmap(dmabuf, 1);
if (!ptr) {
pr_err("dma_buf_kmap failed\n");
err = -ENOMEM;
goto err;
}
if (memchr_inv(ptr, 0xaa, PAGE_SIZE)) {
dma_buf_kunmap(dmabuf, 1, ptr);
pr_err("Exported page[1] not set to 0xaa!\n");
err = -EINVAL;
goto err;
}
memset(ptr, 0xc5, PAGE_SIZE);
dma_buf_kunmap(dmabuf, 1, ptr);
ptr = dma_buf_kmap(dmabuf, 0);
if (!ptr) {
pr_err("dma_buf_kmap failed\n");
err = -ENOMEM;
goto err;
}
if (memchr_inv(ptr, 0xc5, PAGE_SIZE)) {
dma_buf_kunmap(dmabuf, 0, ptr);
pr_err("Exported page[0] did not retain 0xc5!\n");
err = -EINVAL;
goto err;
}
dma_buf_kunmap(dmabuf, 0, ptr);
ptr = dma_buf_kmap(dmabuf, 2);
if (ptr) {
pr_err("Erroneously kmapped beyond the end of the object!\n");
dma_buf_kunmap(dmabuf, 2, ptr);
err = -EINVAL;
goto err;
}
ptr = dma_buf_kmap(dmabuf, -1);
if (ptr) {
pr_err("Erroneously kmapped before the start of the object!\n");
dma_buf_kunmap(dmabuf, -1, ptr);
err = -EINVAL;
goto err;
}
err = 0;
err:
dma_buf_put(dmabuf);
return err;
}
int i915_gem_dmabuf_mock_selftests(void)
{
static const struct i915_subtest tests[] = {
SUBTEST(igt_dmabuf_export),
SUBTEST(igt_dmabuf_import_self),
SUBTEST(igt_dmabuf_import),
SUBTEST(igt_dmabuf_import_ownership),
SUBTEST(igt_dmabuf_export_vmap),
SUBTEST(igt_dmabuf_export_kmap),
};
struct drm_i915_private *i915;
int err;
i915 = mock_gem_device();
if (!i915)
return -ENOMEM;
err = i915_subtests(tests, i915);
drm_dev_put(&i915->drm);
return err;
}
int i915_gem_dmabuf_live_selftests(struct drm_i915_private *i915)
{
static const struct i915_subtest tests[] = {
SUBTEST(igt_dmabuf_export),
};
return i915_subtests(tests, i915);
}
