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/*
* 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 <linux/random.h>
#include "../i915_drv.h"
#include "../i915_selftest.h"
struct i915_selftest i915_selftest __read_mostly = {
.timeout_ms = 1000,
};
int i915_mock_sanitycheck(void)
{
pr_info(DRIVER_NAME ": %s() - ok!\n", __func__);
return 0;
}
int i915_live_sanitycheck(struct drm_i915_private *i915)
{
pr_info("%s: %s() - ok!\n", i915->drm.driver->name, __func__);
return 0;
}
enum {
#define selftest(name, func) mock_##name,
#include "i915_mock_selftests.h"
#undef selftest
};
enum {
#define selftest(name, func) live_##name,
#include "i915_live_selftests.h"
#undef selftest
};
struct selftest {
bool enabled;
const char *name;
union {
int (*mock)(void);
int (*live)(struct drm_i915_private *);
};
};
#define selftest(n, f) [mock_##n] = { .name = #n, .mock = f },
static struct selftest mock_selftests[] = {
#include "i915_mock_selftests.h"
};
#undef selftest
#define selftest(n, f) [live_##n] = { .name = #n, .live = f },
static struct selftest live_selftests[] = {
#include "i915_live_selftests.h"
};
#undef selftest
/* Embed the line number into the parameter name so that we can order tests */
#define selftest(n, func) selftest_0(n, func, param(n))
#define param(n) __PASTE(igt__, __PASTE(__LINE__, __mock_##n))
#define selftest_0(n, func, id) \
module_param_named(id, mock_selftests[mock_##n].enabled, bool, 0400);
#include "i915_mock_selftests.h"
#undef selftest_0
#undef param
#define param(n) __PASTE(igt__, __PASTE(__LINE__, __live_##n))
#define selftest_0(n, func, id) \
module_param_named(id, live_selftests[live_##n].enabled, bool, 0400);
#include "i915_live_selftests.h"
#undef selftest_0
#undef param
#undef selftest
static void set_default_test_all(struct selftest *st, unsigned int count)
{
unsigned int i;
for (i = 0; i < count; i++)
if (st[i].enabled)
return;
for (i = 0; i < count; i++)
st[i].enabled = true;
}
static int __run_selftests(const char *name,
struct selftest *st,
unsigned int count,
void *data)
{
int err = 0;
while (!i915_selftest.random_seed)
i915_selftest.random_seed = get_random_int();
i915_selftest.timeout_jiffies =
i915_selftest.timeout_ms ?
msecs_to_jiffies_timeout(i915_selftest.timeout_ms) :
MAX_SCHEDULE_TIMEOUT;
set_default_test_all(st, count);
pr_info(DRIVER_NAME ": Performing %s selftests with st_random_seed=0x%x st_timeout=%u\n",
name, i915_selftest.random_seed, i915_selftest.timeout_ms);
/* Tests are listed in order in i915_*_selftests.h */
for (; count--; st++) {
if (!st->enabled)
continue;
cond_resched();
if (signal_pending(current))
return -EINTR;
pr_debug(DRIVER_NAME ": Running %s\n", st->name);
if (data)
err = st->live(data);
else
err = st->mock();
if (err == -EINTR && !signal_pending(current))
err = 0;
if (err)
break;
}
if (WARN(err > 0 || err == -ENOTTY,
"%s returned %d, conflicting with selftest's magic values!\n",
st->name, err))
err = -1;
return err;
}
#define run_selftests(x, data) \
__run_selftests(#x, x##_selftests, ARRAY_SIZE(x##_selftests), data)
int i915_mock_selftests(void)
{
int err;
if (!i915_selftest.mock)
return 0;
err = run_selftests(mock, NULL);
if (err) {
i915_selftest.mock = err;
return err;
}
if (i915_selftest.mock < 0) {
i915_selftest.mock = -ENOTTY;
return 1;
}
return 0;
}
int i915_live_selftests(struct pci_dev *pdev)
{
int err;
if (!i915_selftest.live)
return 0;
err = run_selftests(live, to_i915(pci_get_drvdata(pdev)));
if (err) {
i915_selftest.live = err;
return err;
}
if (i915_selftest.live < 0) {
i915_selftest.live = -ENOTTY;
return 1;
}
return 0;
}
int __i915_subtests(const char *caller,
const struct i915_subtest *st,
unsigned int count,
void *data)
{
int err;
for (; count--; st++) {
cond_resched();
if (signal_pending(current))
return -EINTR;
pr_debug(DRIVER_NAME ": Running %s/%s\n", caller, st->name);
err = st->func(data);
if (err && err != -EINTR) {
pr_err(DRIVER_NAME "/%s: %s failed with error %d\n",
caller, st->name, err);
return err;
}
}
return 0;
}
bool __igt_timeout(unsigned long timeout, const char *fmt, ...)
{
va_list va;
if (!signal_pending(current)) {
cond_resched();
if (time_before(jiffies, timeout))
return false;
}
if (fmt) {
va_start(va, fmt);
vprintk(fmt, va);
va_end(va);
}
return true;
}
module_param_named(st_random_seed, i915_selftest.random_seed, uint, 0400);
module_param_named(st_timeout, i915_selftest.timeout_ms, uint, 0400);
module_param_named_unsafe(mock_selftests, i915_selftest.mock, int, 0400);
MODULE_PARM_DESC(mock_selftests, "Run selftests before loading, using mock hardware (0:disabled [default], 1:run tests then load driver, -1:run tests then exit module)");
module_param_named_unsafe(live_selftests, i915_selftest.live, int, 0400);
MODULE_PARM_DESC(live_selftests, "Run selftests after driver initialisation on the live system (0:disabled [default], 1:run tests then continue, -1:run tests then exit module)");
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