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tests/gem_dummy_reloc_loop: Add one subtest based on multi drm_fd to test CPU<->GPU sync under multi BSD rings

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The Broadwell GT3 machine has two independent BSD rings in kernel driver while
it is transparent to the user-space driver. In such case it needs to check
the CPU<->GPU sync for the second BSD ring.

V1->V2: Follow Daniel's comment to add one subtext instead of one individual
test case, which is used to test the CPU<->GPU sync under multi BSD rings.

V2->V3: Follow Imre's comment to remove the unnecessary initialization and
use igt_assert_f instead of igt_assert

Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Zhao Yakui 2014-04-24 10:15:45 +08:00 committed by Daniel Vetter
parent ae8e646127
commit 5a8c06464e
1 changed files with 106 additions and 1 deletions
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107
tests/gem_dummy_reloc_loop.c
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@ -48,6 +48,13 @@ static drm_intel_bufmgr *bufmgr;
struct intel_batchbuffer *batch;
static drm_intel_bo *target_buffer;
#define NUM_FD 50
static int mfd[NUM_FD];
static drm_intel_bufmgr *mbufmgr[NUM_FD];
static struct intel_batchbuffer *mbatch[NUM_FD];
static drm_intel_bo *mbuffer[NUM_FD];
/*
* Testcase: Basic check of ring<->cpu sync using a dummy reloc
*
@ -124,6 +131,50 @@ dummy_reloc_loop_random_ring(int num_rings)
}
}
static void
dummy_reloc_loop_random_ring_multi_fd(int num_rings)
{
int i;
struct intel_batchbuffer *saved_batch;
saved_batch = batch;
srandom(0xdeadbeef);
for (i = 0; i < 0x100000; i++) {
int mindex;
int ring = random() % num_rings + 1;
mindex = random() % NUM_FD;
batch = mbatch[mindex];
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(mbuffer[mindex], 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(mbuffer[mindex], 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);
}
batch = saved_batch;
}
int fd;
int devid;
int num_rings;
@ -133,6 +184,7 @@ igt_main
igt_skip_on_simulation();
igt_fixture {
int i;
fd = drm_open_any();
devid = intel_get_drm_devid(fd);
num_rings = gem_get_num_rings(fd);
@ -148,6 +200,40 @@ igt_main
target_buffer = drm_intel_bo_alloc(bufmgr, "target bo", 4096, 4096);
igt_assert(target_buffer);
/* Create multi drm_fd and map one gem object to multi gem_contexts */
{
unsigned int target_flink;
char buffer_name[32];
if (dri_bo_flink(target_buffer, &target_flink)) {
printf("fail to get flink for target buffer\n");
igt_assert_f(0, "fail to create global "
"gem_handle for target buffer\n");
}
for (i = 0; i < NUM_FD; i++) {
sprintf(buffer_name, "Target buffer %d\n", i);
mfd[i] = drm_open_any();
mbufmgr[i] = drm_intel_bufmgr_gem_init(mfd[i], 4096);
igt_assert_f(mbufmgr[i],
"fail to initialize buf manager "
"for drm_fd %d\n",
mfd[i]);
drm_intel_bufmgr_gem_enable_reuse(mbufmgr[i]);
mbatch[i] = intel_batchbuffer_alloc(mbufmgr[i], devid);
igt_assert_f(mbatch[i],
"fail to create batchbuffer "
"for drm_fd %d\n",
mfd[i]);
mbuffer[i] = intel_bo_gem_create_from_name(
mbufmgr[i],
buffer_name,
target_flink);
igt_assert_f(mbuffer[i],
"fail to create gem bo from global "
"gem_handle %d for drm_fd %d\n",
target_flink, mfd[i]);
}
}
}
igt_subtest("render") {
@ -190,8 +276,27 @@ igt_main
printf("dummy loop run on random rings completed\n");
}
}
igt_subtest("mixed_multi_fd") {
if (num_rings > 1) {
sleep(2);
printf("running dummy loop on random rings based on "
"multi drm_fd\n");
dummy_reloc_loop_random_ring_multi_fd(num_rings);
printf("dummy loop run on random rings based on "
"multi drm_fd completed\n");
}
}
igt_fixture {
int i;
/* Free the buffer/batchbuffer/buffer mgr for multi-fd */
{
for (i = 0; i < NUM_FD; i++) {
dri_bo_unreference(mbuffer[i]);
intel_batchbuffer_free(mbatch[i]);
drm_intel_bufmgr_destroy(mbufmgr[i]);
close(mfd[i]);
}
}
drm_intel_bo_unreference(target_buffer);
intel_batchbuffer_free(batch);
drm_intel_bufmgr_destroy(bufmgr);