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/*
* Copyright © 2009 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>
* Jesse Barnes <jbarnes@virtuousgeek.org> (based on gem_bad_blit.c)
*
*/
#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;
static drm_intel_bo *target_bo;
static int has_ppgtt = 0;
/* Like the store dword test, but we create new command buffers each time */
static void
store_dword_loop(void)
{
int cmd, i, val = 0, ret;
uint32_t *buf;
drm_intel_bo *cmd_bo;
cmd = MI_STORE_DWORD_IMM;
if (!has_ppgtt)
cmd |= MI_MEM_VIRTUAL;
for (i = 0; i < 0x80000; i++) {
cmd_bo = drm_intel_bo_alloc(bufmgr, "cmd bo", 4096, 4096);
if (!cmd_bo) {
fprintf(stderr, "failed to alloc cmd bo\n");
exit(-1);
}
drm_intel_bo_map(cmd_bo, 1);
buf = cmd_bo->virtual;
buf[0] = cmd;
buf[1] = 0;
buf[2] = target_bo->offset;
buf[3] = 0x42000000 + val;
ret = drm_intel_bo_references(cmd_bo, target_bo);
if (ret) {
fprintf(stderr, "failed to link cmd & target bos\n");
exit(-1);
}
ret = drm_intel_bo_emit_reloc(cmd_bo, 8, target_bo, 0,
I915_GEM_DOMAIN_INSTRUCTION,
I915_GEM_DOMAIN_INSTRUCTION);
if (ret) {
fprintf(stderr, "failed to emit reloc\n");
exit(-1);
}
buf[4] = MI_BATCH_BUFFER_END;
buf[5] = MI_BATCH_BUFFER_END;
drm_intel_bo_unmap(cmd_bo);
ret = drm_intel_bo_references(cmd_bo, target_bo);
if (ret != 1) {
fprintf(stderr, "bad bo reference count: %d\n", ret);
exit(-1);
}
ret = drm_intel_bo_exec(cmd_bo, 6 * 4, NULL, 0, 0);
if (ret) {
fprintf(stderr, "bo exec failed: %d\n", ret);
exit(-1);
}
drm_intel_bo_wait_rendering(cmd_bo);
drm_intel_bo_map(target_bo, 1);
buf = target_bo->virtual;
if (buf[0] != (0x42000000 | val)) {
fprintf(stderr,
"value mismatch: cur 0x%08x, stored 0x%08x\n",
buf[0], 0x42000000 | val);
exit(-1);
}
buf[0] = 0; /* let batch write it again */
drm_intel_bo_unmap(target_bo);
drm_intel_bo_unreference(cmd_bo);
val++;
}
printf("completed %d writes successfully\n", i);
}
int main(int argc, char **argv)
{
int fd;
int devid;
if (argc != 1) {
fprintf(stderr, "usage: %s\n", argv[0]);
exit(-1);
}
fd = drm_open_any();
devid = intel_get_drm_devid(fd);
has_ppgtt = gem_uses_aliasing_ppgtt(fd);
if (IS_GEN2(devid) || IS_GEN3(devid) || IS_GEN4(devid) || IS_GEN5(devid)) {
fprintf(stderr, "MI_STORE_DATA can only use GTT address on gen4+/g33 and"
"needs snoopable mem on pre-gen6\n");
return 77;
}
bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
if (!bufmgr) {
fprintf(stderr, "failed to init libdrm\n");
exit(-1);
}
// drm_intel_bufmgr_gem_enable_reuse(bufmgr);
target_bo = drm_intel_bo_alloc(bufmgr, "target bo", 4096, 4096);
if (!target_bo) {
fprintf(stderr, "failed to alloc target buffer\n");
exit(-1);
}
store_dword_loop();
drm_intel_bo_unreference(target_bo);
drm_intel_bufmgr_destroy(bufmgr);
close(fd);
return 0;
}
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