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1dddf32df9
We should be able to execute batches up to the full GTT size (give or take fragmentation), so let's try! Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
136 lines
3.8 KiB
C
136 lines
3.8 KiB
C
/*
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* Copyright © 2011,2012 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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* Chris Wilson <chris@chris-wilson.co.uk>
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* Daniel Vetter <daniel.vetter@ffwll.ch>
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*
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*/
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/*
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* Testcase: run a nop batch which is really big
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*
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* Mostly useful to stress-test the error-capture code
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*/
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include "drm.h"
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#include "ioctl_wrappers.h"
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#include "drmtest.h"
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#include "igt_aux.h"
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IGT_TEST_DESCRIPTION("Run a large nop batch to stress test the error capture"
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" code.");
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static void exec(int fd, uint32_t handle, uint32_t reloc_ofs, unsigned flags)
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{
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struct drm_i915_gem_execbuffer2 execbuf;
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struct drm_i915_gem_exec_object2 gem_exec[1];
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struct drm_i915_gem_relocation_entry gem_reloc[1];
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uint32_t tmp;
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gem_reloc[0].offset = reloc_ofs;
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gem_reloc[0].delta = 0;
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gem_reloc[0].target_handle = handle;
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gem_reloc[0].read_domains = I915_GEM_DOMAIN_RENDER;
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gem_reloc[0].write_domain = 0;
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gem_reloc[0].presumed_offset = 0;
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gem_exec[0].handle = handle;
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gem_exec[0].relocation_count = 1;
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gem_exec[0].relocs_ptr = (uintptr_t) gem_reloc;
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gem_exec[0].alignment = 0;
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gem_exec[0].offset = 0;
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gem_exec[0].flags = 0;
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gem_exec[0].rsvd1 = 0;
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gem_exec[0].rsvd2 = 0;
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execbuf.buffers_ptr = (uintptr_t)gem_exec;
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execbuf.buffer_count = 1;
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execbuf.batch_start_offset = 0;
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execbuf.batch_len = 8;
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execbuf.cliprects_ptr = 0;
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execbuf.num_cliprects = 0;
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execbuf.DR1 = 0;
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execbuf.DR4 = 0;
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execbuf.flags = flags;
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i915_execbuffer2_set_context_id(execbuf, 0);
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execbuf.rsvd2 = 0;
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/* Avoid hitting slowpaths in the reloc processing which might yield a
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* presumed_offset of -1. Happens when the batch is still busy from the
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* last round. */
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gem_sync(fd, handle);
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gem_execbuf(fd, &execbuf);
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igt_warn_on(gem_reloc[0].presumed_offset == -1);
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gem_read(fd, handle, reloc_ofs, &tmp, 4);
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igt_assert_eq(tmp, gem_reloc[0].presumed_offset);
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}
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igt_simple_main
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{
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uint32_t batch[2] = {MI_BATCH_BUFFER_END};
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int fd;
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uint32_t reloc_ofs;
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unsigned batch_size;
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int max;
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fd = drm_open_any();
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max = 3 * gem_aperture_size(fd) / 4;
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intel_require_memory(1, max, CHECK_RAM);
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for (batch_size = 4096; batch_size <= max; ) {
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uint32_t handle = gem_create(fd, batch_size);
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gem_write(fd, handle, 0, batch, sizeof(batch));
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for (reloc_ofs = 4096; reloc_ofs < batch_size; reloc_ofs += 4096) {
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igt_debug("batch_size %u, reloc_ofs %u\n",
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batch_size, reloc_ofs);
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exec(fd, handle, reloc_ofs, 0);
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exec(fd, handle, reloc_ofs, I915_EXEC_SECURE);
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}
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gem_madvise(fd, handle, I915_MADV_DONTNEED);
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if (batch_size < max && 2*batch_size > max)
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batch_size = max;
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else
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batch_size *= 2;
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}
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close(fd);
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}
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