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d545610861
To simplify and speed up running interruptible tests, use a custom
ioctl() function that control the signaling and detect when we need no
more iterations to trigger an interruption.
We use a realtime timer to inject the signal after a certain delay,
increasing the delay on every loop to try and exercise different code
paths within the function. The first delay is very short such that we
hopefully enter the kernel with a pending signal.
Clients should use
struct igt_sigiter iter = {};
while (igt_sigiter_repeat(&iter, enable_interrupts=true))
do_test()
to automatically repeat the test until we can inject no more signals
into the ioctls. This is condensed into a macro
igt_interruptible(enable_interrupts=true)
do_test();
for convenience.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
170 lines
5.1 KiB
C
170 lines
5.1 KiB
C
/*
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* Copyright © 2014, 2015 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Daniel Vetter <daniel.vetter@ffwll.ch>
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*
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*/
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#ifndef IGT_AUX_H
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#define IGT_AUX_H
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#include <intel_bufmgr.h>
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#include <stdbool.h>
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#include <sys/time.h>
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extern drm_intel_bo **trash_bos;
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extern int num_trash_bos;
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/* auxialiary igt helpers from igt_aux.c */
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/* generally useful helpers */
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void igt_fork_signal_helper(void);
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void igt_stop_signal_helper(void);
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struct igt_sigiter {
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unsigned pass;
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};
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bool igt_sigiter_continue(struct igt_sigiter *iter, bool interrupt);
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#define igt_interruptible(E) \
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for (struct igt_sigiter iter__={}; igt_sigiter_continue(&iter__, (E)); )
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void igt_exchange_int(void *array, unsigned i, unsigned j);
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void igt_permute_array(void *array, unsigned size,
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void (*exchange_func)(void *array,
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unsigned i,
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unsigned j));
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void igt_progress(const char *header, uint64_t i, uint64_t total);
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void igt_print_activity(void);
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bool igt_check_boolean_env_var(const char *env_var, bool default_value);
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bool igt_aub_dump_enabled(void);
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/* helpers based upon the libdrm buffer manager */
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void igt_init_aperture_trashers(drm_intel_bufmgr *bufmgr);
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void igt_trash_aperture(void);
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void igt_cleanup_aperture_trashers(void);
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/* suspend/hibernate and auto-resume system */
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void igt_system_suspend_autoresume(void);
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void igt_system_hibernate_autoresume(void);
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/* dropping priviledges */
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void igt_drop_root(void);
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void igt_debug_wait_for_keypress(const char *var);
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void igt_debug_manual_check(const char *var, const char *expected);
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enum igt_runtime_pm_status {
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IGT_RUNTIME_PM_STATUS_ACTIVE,
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IGT_RUNTIME_PM_STATUS_SUSPENDED,
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IGT_RUNTIME_PM_STATUS_SUSPENDING,
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IGT_RUNTIME_PM_STATUS_RESUMING,
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IGT_RUNTIME_PM_STATUS_UNKNOWN,
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};
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bool igt_setup_runtime_pm(void);
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enum igt_runtime_pm_status igt_get_runtime_pm_status(void);
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bool igt_wait_for_pm_status(enum igt_runtime_pm_status status);
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/* sysinfo cross-arch wrappers from intel_os.c */
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/* These are separate to allow easier testing when porting, see the comment at
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* the bottom of intel_os.c. */
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void intel_purge_vm_caches(void);
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uint64_t intel_get_avail_ram_mb(void);
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uint64_t intel_get_total_ram_mb(void);
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uint64_t intel_get_total_swap_mb(void);
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int __intel_check_memory(uint64_t count, uint64_t size, unsigned mode,
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uint64_t *out_required, uint64_t *out_total);
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void intel_require_memory(uint64_t count, uint64_t size, unsigned mode);
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#define CHECK_RAM 0x1
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#define CHECK_SWAP 0x2
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#define min(a, b) ({ \
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typeof(a) _a = (a); \
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typeof(b) _b = (b); \
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_a < _b ? _a : _b; \
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})
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#define max(a, b) ({ \
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typeof(a) _a = (a); \
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typeof(b) _b = (b); \
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_a > _b ? _a : _b; \
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})
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#define igt_swap(a, b) do { \
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typeof(a) _tmp = (a); \
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(a) = (b); \
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(b) = _tmp; \
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} while (0)
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void igt_lock_mem(size_t size);
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void igt_unlock_mem(void);
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/**
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* igt_wait:
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* @COND: condition to wait
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* @timeout_ms: timeout in milliseconds
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* @interval_ms: amount of time we try to sleep between COND checks
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*
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* Waits until COND evaluates to true or the timeout passes.
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*
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* It is safe to call this macro if the signal helper is active. The only
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* problem is that the usleep() calls will return early, making us evaluate COND
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* too often, possibly eating valuable CPU cycles.
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*
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* Returns:
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* True of COND evaluated to true, false otherwise.
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*/
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#define igt_wait(COND, timeout_ms, interval_ms) ({ \
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struct timeval start_, end_, diff_; \
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int elapsed_ms_; \
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bool ret_ = false; \
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\
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igt_assert(gettimeofday(&start_, NULL) == 0); \
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do { \
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if (COND) { \
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ret_ = true; \
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break; \
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} \
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\
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usleep(interval_ms * 1000); \
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\
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igt_assert(gettimeofday(&end_, NULL) == 0); \
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timersub(&end_, &start_, &diff_); \
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\
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elapsed_ms_ = diff_.tv_sec * 1000 + \
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diff_.tv_usec / 1000; \
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} while (elapsed_ms_ < timeout_ms); \
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\
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if (!ret_ && (COND)) \
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ret_ = true; \
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\
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ret_; \
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})
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void igt_set_module_param(const char *name, const char *val);
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void igt_set_module_param_int(const char *name, int val);
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#endif /* IGT_AUX_H */
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