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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 <fcntl.h>
#include <inttypes.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/time.h>
#include "drm.h"
#include "ioctl_wrappers.h"
#include "drmtest.h"
#include "intel_bufmgr.h"
#include "intel_batchbuffer.h"
#include "intel_io.h"
#include "intel_chipset.h"
static drm_intel_bufmgr *bufmgr;
struct intel_batchbuffer *batch;
static drm_intel_bo *target_buffer;
static int has_ppgtt = 0;
/*
* Testcase: Basic blitter MI check using MI_STORE_DATA_IMM
*/
static void
emit_store_dword_imm(int devid, drm_intel_bo *dest, uint32_t val)
{
int cmd;
cmd = MI_STORE_DWORD_IMM;
if (!has_ppgtt)
cmd |= MI_MEM_VIRTUAL;
BEGIN_BATCH(4, 0);
OUT_BATCH(cmd);
if (batch->gen >= 8) {
OUT_RELOC(dest, I915_GEM_DOMAIN_INSTRUCTION,
I915_GEM_DOMAIN_INSTRUCTION, 0);
OUT_BATCH(val);
} else {
OUT_BATCH(0); /* reserved */
OUT_RELOC(dest, I915_GEM_DOMAIN_INSTRUCTION,
I915_GEM_DOMAIN_INSTRUCTION, 0);
OUT_BATCH(val);
}
ADVANCE_BATCH();
}
static void
store_dword_loop(int devid, int divider)
{
int i, val = 0;
uint32_t *buf;
igt_info("running storedw loop on render with stall every %i batch\n", divider);
for (i = 0; i < SLOW_QUICK(0x2000, 0x10); i++) {
emit_store_dword_imm(devid, target_buffer, val);
intel_batchbuffer_flush_on_ring(batch, I915_EXEC_BLT);
if (i % divider != 0)
goto cont;
drm_intel_bo_map(target_buffer, 0);
buf = target_buffer->virtual;
igt_assert_f(buf[0] == val,
"value mismatch: cur 0x%08x, stored 0x%08x\n",
buf[0], val);
drm_intel_bo_unmap(target_buffer);
cont:
val++;
}
drm_intel_bo_map(target_buffer, 0);
buf = target_buffer->virtual;
igt_info("completed %d writes successfully, current value: 0x%08x\n", i,
buf[0]);
drm_intel_bo_unmap(target_buffer);
}
igt_simple_main
{
int fd;
int devid;
fd = drm_open_any();
devid = intel_get_drm_devid(fd);
has_ppgtt = gem_uses_aliasing_ppgtt(fd);
igt_skip_on_f(intel_gen(devid) < 6,
"MI_STORE_DATA can only use GTT address on gen4+/g33 and "
"needs snoopable mem on pre-gen6\n");
/* This only works with ppgtt */
igt_require(has_ppgtt);
bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
igt_assert(bufmgr);
drm_intel_bufmgr_gem_enable_reuse(bufmgr);
batch = intel_batchbuffer_alloc(bufmgr, devid);
igt_assert(batch);
target_buffer = drm_intel_bo_alloc(bufmgr, "target bo", 4096, 4096);
igt_assert(target_buffer);
store_dword_loop(devid, 1);
store_dword_loop(devid, 2);
if (!igt_run_in_simulation()) {
store_dword_loop(devid, 3);
store_dword_loop(devid, 5);
}
drm_intel_bo_unreference(target_buffer);
intel_batchbuffer_free(batch);
drm_intel_bufmgr_destroy(bufmgr);
close(fd);
}
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