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ntel-gpu-tools/tests/gem_lut_handle.c
Chris Wilson f1e9e300fa gem_lut_handle: Make the error checking explicit for LUT handling 
What this test is interested in is the handling of the LUT for very
large arrays, irrespective of whether such batch are actually
executable. So adjust the pass/fail checks to be explicit in the error
they are looking for, so that we do not conflate memory/aperture
pressure as a failure in the LUT API.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=65391
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2013-06-05 11:14:25 +01:00

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/*
* Copyright © 2012,2013 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.
*
* Authors:
* Chris Wilson <chris@chris-wilson.co.uk>
*
*/
/* Exercises the basic execbuffer using theh andle LUT interface */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <fcntl.h>
#include <inttypes.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/time.h>
#include "drm.h"
#include "i915_drm.h"
#include "drmtest.h"
#define MI_BATCH_BUFFER_END (0xA<<23)
#define BATCH_SIZE (1024*1024)
#define LOCAL_I915_EXEC_HANDLE_LUT (1<<12)
#define NORMAL 0
#define USE_LUT 0x1
#define BROKEN 0x2
static int exec(int fd, uint32_t handle, unsigned int flags)
{
struct drm_i915_gem_execbuffer2 execbuf;
struct drm_i915_gem_exec_object2 gem_exec[1];
struct drm_i915_gem_relocation_entry gem_reloc[1];
gem_reloc[0].offset = 1024;
gem_reloc[0].delta = 0;
gem_reloc[0].target_handle =
!!(flags & USE_LUT) ^ !!(flags & BROKEN) ? 0 : handle;
gem_reloc[0].read_domains = I915_GEM_DOMAIN_RENDER;
gem_reloc[0].write_domain = 0;
gem_reloc[0].presumed_offset = 0;
gem_exec[0].handle = handle;
gem_exec[0].relocation_count = 1;
gem_exec[0].relocs_ptr = (uintptr_t) gem_reloc;
gem_exec[0].alignment = 0;
gem_exec[0].offset = 0;
gem_exec[0].flags = 0;
gem_exec[0].rsvd1 = 0;
gem_exec[0].rsvd2 = 0;
execbuf.buffers_ptr = (uintptr_t)gem_exec;
execbuf.buffer_count = 1;
execbuf.batch_start_offset = 0;
execbuf.batch_len = 8;
execbuf.cliprects_ptr = 0;
execbuf.num_cliprects = 0;
execbuf.DR1 = 0;
execbuf.DR4 = 0;
execbuf.flags = flags & USE_LUT ? LOCAL_I915_EXEC_HANDLE_LUT : 0;
i915_execbuffer2_set_context_id(execbuf, 0);
execbuf.rsvd2 = 0;
return drmIoctl(fd,
DRM_IOCTL_I915_GEM_EXECBUFFER2,
&execbuf);
}
static int many_exec(int fd, uint32_t batch, int num_exec, int num_reloc, unsigned flags)
{
struct drm_i915_gem_execbuffer2 execbuf;
struct drm_i915_gem_exec_object2 *gem_exec;
struct drm_i915_gem_relocation_entry *gem_reloc;
unsigned min_handle = 0, max_handle = ~0;
int ret, n;
gem_exec = calloc(num_exec+1, sizeof(*gem_exec));
gem_reloc = calloc(num_reloc, sizeof(*gem_reloc));
assert(gem_exec && gem_reloc);
for (n = 0; n < num_exec; n++) {
gem_exec[n].handle = gem_create(fd, 4096);
if (gem_exec[n].handle < min_handle)
min_handle = gem_exec[n].handle;
if (gem_exec[n].handle > max_handle)
max_handle = gem_exec[n].handle;
gem_exec[n].relocation_count = 0;
gem_exec[n].relocs_ptr = 0;
gem_exec[n].alignment = 0;
gem_exec[n].offset = 0;
gem_exec[n].flags = 0;
gem_exec[n].rsvd1 = 0;
gem_exec[n].rsvd2 = 0;
}
gem_exec[n].handle = batch;
gem_exec[n].relocation_count = num_reloc;
gem_exec[n].relocs_ptr = (uintptr_t) gem_reloc;
if (flags & USE_LUT) {
min_handle = 0;
max_handle = num_exec + 1;
}
for (n = 0; n < num_reloc; n++) {
unsigned target;
if (flags & BROKEN) {
target = rand();
if (target <= max_handle && target >= min_handle)
target = target & 1 ? min_handle - target : max_handle + target;
} else {
target = rand() % (num_exec + 1);
if ((flags & USE_LUT) == 0)
target = gem_exec[target].handle;
}
gem_reloc[n].offset = 1024;
gem_reloc[n].delta = 0;
gem_reloc[n].target_handle = target;
gem_reloc[n].read_domains = I915_GEM_DOMAIN_RENDER;
gem_reloc[n].write_domain = 0;
gem_reloc[n].presumed_offset = 0;
}
execbuf.buffers_ptr = (uintptr_t)gem_exec;
execbuf.buffer_count = num_exec + 1;
execbuf.batch_start_offset = 0;
execbuf.batch_len = 8;
execbuf.cliprects_ptr = 0;
execbuf.num_cliprects = 0;
execbuf.DR1 = 0;
execbuf.DR4 = 0;
execbuf.flags = flags & USE_LUT ? LOCAL_I915_EXEC_HANDLE_LUT : 0;
i915_execbuffer2_set_context_id(execbuf, 0);
execbuf.rsvd2 = 0;
ret = drmIoctl(fd,
DRM_IOCTL_I915_GEM_EXECBUFFER2,
&execbuf);
for (n = 0; n < num_exec; n++)
gem_close(fd, gem_exec[n].handle);
free(gem_exec);
free(gem_reloc);
return ret;
}
#define _fail(x) ((x) == -1 && errno == ENOENT)
#define fail(x) assert(_fail(x))
#define pass(x) assert(!_fail(x))
int main(int argc, char **argv)
{
uint32_t batch[2] = {MI_BATCH_BUFFER_END};
uint32_t handle;
int fd, i;
fd = drm_open_any();
handle = gem_create(fd, 4096);
gem_write(fd, handle, 0, batch, sizeof(batch));
do_or_die(exec(fd, handle, NORMAL));
fail(exec(fd, handle, BROKEN));
if (exec(fd, handle, USE_LUT))
return 77;
do_or_die(exec(fd, handle, USE_LUT));
fail(exec(fd, handle, USE_LUT | BROKEN));
for (i = 2; i <= 65536; i *= 2) {
pass(many_exec(fd, handle, i-1, i-1, NORMAL));
pass(many_exec(fd, handle, i-1, i, NORMAL));
pass(many_exec(fd, handle, i-1, i+1, NORMAL));
pass(many_exec(fd, handle, i, i-1, NORMAL));
pass(many_exec(fd, handle, i, i, NORMAL));
pass(many_exec(fd, handle, i, i+1, NORMAL));
pass(many_exec(fd, handle, i+1, i-1, NORMAL));
pass(many_exec(fd, handle, i+1, i, NORMAL));
pass(many_exec(fd, handle, i+1, i+1, NORMAL));
fail(many_exec(fd, handle, i-1, i-1, NORMAL | BROKEN));
fail(many_exec(fd, handle, i-1, i, NORMAL | BROKEN));
fail(many_exec(fd, handle, i-1, i+1, NORMAL | BROKEN));
fail(many_exec(fd, handle, i, i-1, NORMAL | BROKEN));
fail(many_exec(fd, handle, i, i, NORMAL | BROKEN));
fail(many_exec(fd, handle, i, i+1, NORMAL | BROKEN));
fail(many_exec(fd, handle, i+1, i-1, NORMAL | BROKEN));
fail(many_exec(fd, handle, i+1, i, NORMAL | BROKEN));
fail(many_exec(fd, handle, i+1, i+1, NORMAL | BROKEN));
pass(many_exec(fd, handle, i-1, i-1, USE_LUT));
pass(many_exec(fd, handle, i-1, i, USE_LUT));
pass(many_exec(fd, handle, i-1, i+1, USE_LUT));
pass(many_exec(fd, handle, i, i-1, USE_LUT));
pass(many_exec(fd, handle, i, i, USE_LUT));
pass(many_exec(fd, handle, i, i+1, USE_LUT));
pass(many_exec(fd, handle, i+1, i-1, USE_LUT));
pass(many_exec(fd, handle, i+1, i, USE_LUT));
pass(many_exec(fd, handle, i+1, i+1, USE_LUT));
fail(many_exec(fd, handle, i-1, i-1, USE_LUT | BROKEN));
fail(many_exec(fd, handle, i-1, i, USE_LUT | BROKEN));
fail(many_exec(fd, handle, i-1, i+1, USE_LUT | BROKEN));
fail(many_exec(fd, handle, i, i-1, USE_LUT | BROKEN));
fail(many_exec(fd, handle, i, i, USE_LUT | BROKEN));
fail(many_exec(fd, handle, i, i+1, USE_LUT | BROKEN));
fail(many_exec(fd, handle, i+1, i-1, USE_LUT | BROKEN));
fail(many_exec(fd, handle, i+1, i, USE_LUT | BROKEN));
fail(many_exec(fd, handle, i+1, i+1, USE_LUT | BROKEN));
}
return 0;
}
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