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/*
* Copyright © 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:
* Daniel Vetter <daniel.vetter@ffwll.ch> (based on gem_storedw_*.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"
#include "i830_reg.h"
static drm_intel_bufmgr *bufmgr;
struct intel_batchbuffer *batch;
static drm_intel_bo *target_buffer;
/*
* Testcase: Basic check of ring<->cpu sync using a dummy reloc
*
* The last test (that randomly switches the ring) seems to be pretty effective
* at hitting the missed irq bug that's worked around with the HWSTAM irq write.
*/
#define MI_COND_BATCH_BUFFER_END (0x36<<23 | 1)
#define MI_DO_COMPARE (1<<21)
static void
dummy_reloc_loop(int ring)
{
int i;
for (i = 0; i < 0x100000; i++) {
if (ring == I915_EXEC_RENDER) {
BEGIN_BATCH(4);
OUT_BATCH(MI_COND_BATCH_BUFFER_END | MI_DO_COMPARE);
OUT_BATCH(0xffffffff); /* compare dword */
OUT_RELOC(target_buffer, I915_GEM_DOMAIN_RENDER,
I915_GEM_DOMAIN_RENDER, 0);
OUT_BATCH(MI_NOOP);
ADVANCE_BATCH();
} else {
BEGIN_BATCH(4);
OUT_BATCH(MI_FLUSH_DW | 1);
OUT_BATCH(0); /* reserved */
OUT_RELOC(target_buffer, I915_GEM_DOMAIN_RENDER,
I915_GEM_DOMAIN_RENDER, 0);
OUT_BATCH(MI_NOOP | (1<<22) | (0xf));
ADVANCE_BATCH();
}
intel_batchbuffer_flush_on_ring(batch, ring);
drm_intel_bo_map(target_buffer, 0);
// map to force completion
drm_intel_bo_unmap(target_buffer);
}
}
static void
dummy_reloc_loop_random_ring(void)
{
int i;
srandom(0xdeadbeef);
for (i = 0; i < 0x100000; i++) {
int ring = random() % 3 + 1;
if (ring == I915_EXEC_RENDER) {
BEGIN_BATCH(4);
OUT_BATCH(MI_COND_BATCH_BUFFER_END | MI_DO_COMPARE);
OUT_BATCH(0xffffffff); /* compare dword */
OUT_RELOC(target_buffer, I915_GEM_DOMAIN_RENDER,
I915_GEM_DOMAIN_RENDER, 0);
OUT_BATCH(MI_NOOP);
ADVANCE_BATCH();
} else {
BEGIN_BATCH(4);
OUT_BATCH(MI_FLUSH_DW | 1);
OUT_BATCH(0); /* reserved */
OUT_RELOC(target_buffer, I915_GEM_DOMAIN_RENDER,
I915_GEM_DOMAIN_RENDER, 0);
OUT_BATCH(MI_NOOP | (1<<22) | (0xf));
ADVANCE_BATCH();
}
intel_batchbuffer_flush_on_ring(batch, ring);
drm_intel_bo_map(target_buffer, 0);
// map to force waiting on rendering
drm_intel_bo_unmap(target_buffer);
}
}
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);
if (!HAS_BLT_RING(devid)) {
fprintf(stderr, "not (yet) implemented for pre-snb\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);
batch = intel_batchbuffer_alloc(bufmgr, devid);
if (!batch) {
fprintf(stderr, "failed to create batch buffer\n");
exit(-1);
}
target_buffer = drm_intel_bo_alloc(bufmgr, "target bo", 4096, 4096);
if (!target_buffer) {
fprintf(stderr, "failed to alloc target buffer\n");
exit(-1);
}
fprintf(stderr, "running dummy loop on render\n");
dummy_reloc_loop(I915_EXEC_RENDER);
fprintf(stderr, "dummy loop run on render completed\n");
if (!HAS_BSD_RING(devid))
goto skip;
sleep(2);
fprintf(stderr, "running dummy loop on bsd\n");
dummy_reloc_loop(I915_EXEC_BSD);
fprintf(stderr, "dummy loop run on bsd completed\n");
if (!HAS_BLT_RING(devid))
goto skip;
sleep(2);
fprintf(stderr, "running dummy loop on blt\n");
dummy_reloc_loop(I915_EXEC_BLT);
fprintf(stderr, "dummy loop run on blt completed\n");
sleep(2);
fprintf(stderr, "running dummy loop on random rings\n");
dummy_reloc_loop_random_ring();
fprintf(stderr, "dummy loop run on random rings completed\n");
skip:
drm_intel_bo_unreference(target_buffer);
intel_batchbuffer_free(batch);
drm_intel_bufmgr_destroy(bufmgr);
close(fd);
return 0;
}
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