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gem_concurrent_blit: Share total num_buffers between all children

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Apparently not all machines have more than 4GiB of RAM available.
Spoilsports.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68169
This commit is contained in:
Chris Wilson 2013-08-16 09:44:13 +01:00
parent 6229832935
commit 1ca607b458
1 changed files with 26 additions and 18 deletions
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44
tests/gem_concurrent_blit.c
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@ -171,7 +171,8 @@ struct access_mode access_modes[] = {
.create_bo = gtt_create_bo, .name = "gtt" },
};
int num_buffers = 128, fd;
#define MAX_NUM_BUFFERS 1024
int num_buffers = MAX_NUM_BUFFERS, fd;
drm_intel_bufmgr *bufmgr;
struct intel_batchbuffer *batch;
int width = 512, height = 512;
@ -245,15 +246,19 @@ static void run_single(struct access_mode *mode,
}
static void run_looped(struct access_mode *mode,
drm_intel_bo **src, drm_intel_bo **dst,
drm_intel_bo *dummy,
do_test do_test_func)
static void run_interruptible(struct access_mode *mode,
drm_intel_bo **src, drm_intel_bo **dst,
drm_intel_bo *dummy,
do_test do_test_func)
{
int loop;
igt_fork_signal_helper();
for (loop = 0; loop < 10; loop++)
do_test_func(mode, src, dst, dummy);
igt_stop_signal_helper();
}
static void run_forked(struct access_mode *mode,
@ -261,9 +266,15 @@ static void run_forked(struct access_mode *mode,
drm_intel_bo *dummy,
do_test do_test_func)
{
const int old_num_buffers = num_buffers;
int loop, i, nc;
pid_t children[16];
num_buffers /= ARRAY_SIZE(children);
num_buffers += 2;
igt_fork_signal_helper();
for (nc = 0; nc < ARRAY_SIZE(children); nc++) {
switch ((children[nc] = fork())) {
case -1: igt_assert(0);
@ -290,6 +301,10 @@ static void run_forked(struct access_mode *mode,
;
igt_assert(status == 0);
}
igt_stop_signal_helper();
num_buffers = old_num_buffers;
}
static void
@ -314,12 +329,10 @@ run_basic_modes(struct access_mode *mode,
static void
run_modes(struct access_mode *mode)
{
int i;
drm_intel_bo *src[128], *dst[128], *dummy = NULL;
drm_intel_bo *src[MAX_NUM_BUFFERS], *dst[MAX_NUM_BUFFERS], *dummy = NULL;
igt_fixture {
for (i = 0; i < num_buffers; i++) {
for (int i = 0; i < num_buffers; i++) {
src[i] = mode->create_bo(bufmgr, i, width, height);
dst[i] = mode->create_bo(bufmgr, ~i, width, height);
}
@ -327,22 +340,17 @@ run_modes(struct access_mode *mode)
}
run_basic_modes(mode, src, dst, dummy, "", run_single);
igt_fork_signal_helper();
run_basic_modes(mode, src, dst, dummy, "-interruptible", run_looped);
run_basic_modes(mode, src, dst, dummy, "-forked", run_forked);
igt_stop_signal_helper();
run_basic_modes(mode, src, dst, dummy, "-interruptible", run_interruptible);
igt_fixture {
for (i = 0; i < num_buffers; i++) {
for (int i = 0; i < num_buffers; i++) {
drm_intel_bo_unreference(src[i]);
drm_intel_bo_unreference(dst[i]);
}
drm_intel_bo_unreference(dummy);
}
run_basic_modes(mode, src, dst, dummy, "-forked", run_forked);
}
int