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/*
* Copyright © 2009,2011 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:
* Eric Anholt <eric@anholt.net>
*
*/
/** @file gem_tiled_fence_blits.c
*
* This is a test of doing many tiled blits, with a working set
* larger than the aperture size.
*
* The goal is to catch a couple types of failure;
* - Fence management problems on pre-965.
* - A17 or L-shaped memory tiling workaround problems in acceleration.
*
* The model is to fill a collection of 1MB objects in a way that can't trip
* over A6 swizzling -- upload data to a non-tiled object, blit to the tiled
* object. Then, copy the 1MB objects randomly between each other for a while.
* Finally, download their data through linear objects again and see what
* resulted.
*/
#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"
#include "intel_bufmgr.h"
#include "intel_batchbuffer.h"
#include "intel_gpu_tools.h"
static drm_intel_bufmgr *bufmgr;
struct intel_batchbuffer *batch;
static int width = 512, height = 512;
static uint32_t linear[1024*1024/4];
static uint64_t
gem_aperture_size(int fd)
{
struct drm_i915_gem_get_aperture aperture;
aperture.aper_size = 512*1024*1024;
(void)drmIoctl(fd, DRM_IOCTL_I915_GEM_GET_APERTURE, &aperture);
return aperture.aper_size;
}
static void
gem_write(int fd, drm_intel_bo *bo, const void *buf, int size)
{
struct drm_i915_gem_pwrite pwrite;
int ret;
pwrite.handle = bo->handle;
pwrite.offset = 0;
pwrite.size = size;
pwrite.data_ptr = (uintptr_t)buf;
ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &pwrite);
assert(ret == 0);
}
static void
gem_read(int fd, drm_intel_bo *bo, void *buf, int size)
{
struct drm_i915_gem_pread pread;
int ret;
pread.handle = bo->handle;
pread.offset = 0;
pread.size = size;
pread.data_ptr = (uintptr_t)buf;
ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_PREAD, &pread);
assert(ret == 0);
}
static drm_intel_bo *
create_bo(int fd, uint32_t start_val)
{
drm_intel_bo *bo;
uint32_t tiling = I915_TILING_X;
int ret, i;
bo = drm_intel_bo_alloc(bufmgr, "tiled bo", 1024 * 1024, 4096);
ret = drm_intel_bo_set_tiling(bo, &tiling, width * 4);
assert(ret == 0);
assert(tiling == I915_TILING_X);
/* Fill the BO with dwords starting at start_val */
for (i = 0; i < 1024 * 1024 / 4; i++)
linear[i] = start_val++;
gem_write(fd, bo, linear, sizeof(linear));
return bo;
}
static void
check_bo(int fd, drm_intel_bo *bo, uint32_t start_val)
{
int i;
gem_read(fd, bo, linear, sizeof(linear));
for (i = 0; i < 1024 * 1024 / 4; i++) {
if (linear[i] != start_val) {
fprintf(stderr, "Expected 0x%08x, found 0x%08x "
"at offset 0x%08x\n",
start_val, linear[i], i * 4);
abort();
}
start_val++;
}
}
int main(int argc, char **argv)
{
drm_intel_bo *bo[4096];
uint32_t bo_start_val[4096];
uint32_t start = 0;
int fd, i, count;
fd = drm_open_any();
count = 3 * gem_aperture_size(fd) / (1024*1024) / 2;
count |= 1;
printf("Using %d 1MiB buffers\n", count);
bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
drm_intel_bufmgr_gem_enable_reuse(bufmgr);
batch = intel_batchbuffer_alloc(bufmgr, intel_get_drm_devid(fd));
for (i = 0; i < count; i++) {
bo[i] = create_bo(fd, start);
bo_start_val[i] = start;
/*
printf("Creating bo %d\n", i);
check_bo(bo[i], bo_start_val[i]);
*/
start += 1024 * 1024 / 4;
}
for (i = 0; i < count; i++) {
int src = count - i - 1;
intel_copy_bo(batch, bo[i], bo[src], width, height);
bo_start_val[i] = bo_start_val[src];
}
for (i = 0; i < count * 4; i++) {
int src = random() % count;
int dst = random() % count;
if (src == dst)
continue;
intel_copy_bo(batch, bo[dst], bo[src], width, height);
bo_start_val[dst] = bo_start_val[src];
/*
check_bo(bo[dst], bo_start_val[dst]);
printf("%d: copy bo %d to %d\n", i, src, dst);
*/
}
for (i = 0; i < count; i++) {
/*
printf("check %d\n", i);
*/
check_bo(fd, bo[i], bo_start_val[i]);
drm_intel_bo_unreference(bo[i]);
bo[i] = NULL;
}
intel_batchbuffer_free(batch);
drm_intel_bufmgr_destroy(bufmgr);
close(fd);
return 0;
}
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