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106 lines
3.1 KiB
106 lines
3.1 KiB
/*
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* Copyright © 2011 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> (based on gem_storedw_*.c)
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*
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*/
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#include "igt.h"
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IGT_TEST_DESCRIPTION("Basic check of ring<->ring write synchronisation.");
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/*
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* Testcase: Basic check of ring<->ring sync using a dummy reloc
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*
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* Extremely efficient at catching missed irqs with semaphores=0 ...
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*/
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static void
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sync_loop(int fd)
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{
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const uint32_t bbe = MI_BATCH_BUFFER_END;
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struct drm_i915_gem_execbuffer2 execbuf;
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struct drm_i915_gem_exec_object2 object[2];
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struct drm_i915_gem_relocation_entry reloc[1];
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unsigned engines[16];
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unsigned nengine;
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unsigned engine;
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int i;
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nengine = 0;
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for_each_physical_engine(fd, engine)
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engines[nengine++] = engine;
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igt_require(nengine);
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memset(object, 0, sizeof(object));
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object[0].handle = gem_create(fd, 4096);
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object[0].flags = EXEC_OBJECT_WRITE;
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object[1].handle = gem_create(fd, 4096);
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gem_write(fd, object[1].handle, 0, &bbe, sizeof(bbe));
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memset(&execbuf, 0, sizeof(execbuf));
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execbuf.buffers_ptr = to_user_pointer(object);
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execbuf.buffer_count = 2;
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/* Check if we have no-reloc support first */
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if (__gem_execbuf(fd, &execbuf)) {
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object[0].flags = 0;
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object[1].relocs_ptr = to_user_pointer(reloc);
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object[1].relocation_count = 1;
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/* Add a dummy relocation to mark the object as writing */
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memset(reloc, 0, sizeof(reloc));
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reloc->offset = 1000;
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reloc->target_handle = object[0].handle;
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reloc->read_domains = I915_GEM_DOMAIN_RENDER;
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reloc->write_domain = I915_GEM_DOMAIN_RENDER;
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gem_execbuf(fd, &execbuf);
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}
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srandom(0xdeadbeef);
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for (i = 0; i < SLOW_QUICK(0x100000, 10); i++) {
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execbuf.flags = engines[rand() % nengine];
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gem_execbuf(fd, &execbuf);
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}
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gem_sync(fd, object[1].handle);
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gem_close(fd, object[1].handle);
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gem_close(fd, object[0].handle);
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}
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igt_simple_main
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{
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int fd;
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fd = drm_open_driver(DRIVER_INTEL);
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igt_require_gem(fd);
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intel_detect_and_clear_missed_interrupts(fd);
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sync_loop(fd);
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igt_assert_eq(intel_detect_and_clear_missed_interrupts(fd), 0);
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close(fd);
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}
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