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igt/gem_tiled_swapping: Cycle through the bo a couple of times

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In order to exercise coherency across swapin/swapout of the same bo,
explicitly loop over all bo a couple of times.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2015-01-15 09:36:05 +00:00
parent d3bf83af03
commit a263cc8795
1 changed files with 49 additions and 25 deletions
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74
tests/gem_tiled_swapping.c
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@ -73,27 +73,52 @@ static uint32_t current_tiling_mode;
#define AVAIL_RAM 512
static uint32_t
create_bo_and_fill(int fd)
create_bo(int fd)
{
uint32_t handle;
uint32_t *data;
int i;
handle = gem_create(fd, LINEAR_DWORDS);
gem_set_tiling(fd, handle, current_tiling_mode, WIDTH * sizeof(uint32_t));
/* Fill the BO with dwords starting at start_val */
data = gem_mmap(fd, handle, LINEAR_DWORDS, PROT_READ | PROT_WRITE);
if (data == NULL && errno == ENOSPC)
if (data == NULL) {
gem_close(fd, handle);
return 0;
for (i = 0; i < WIDTH*HEIGHT; i++)
data[i] = i;
}
munmap(data, LINEAR_DWORDS);
return handle;
}
static void
fill_bo(int fd, uint32_t handle)
{
uint32_t *data;
int i;
data = gem_mmap(fd, handle, LINEAR_DWORDS, PROT_READ | PROT_WRITE);
igt_assert(data);
gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
for (i = 0; i < WIDTH*HEIGHT; i++)
data[i] = i;
munmap(data, LINEAR_DWORDS);
}
static void
check_bo(int fd, uint32_t handle)
{
uint32_t *data;
int j;
data = gem_mmap(fd, handle, LINEAR_DWORDS, PROT_READ);
gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, 0);
j = rand() % (WIDTH * HEIGHT);
igt_assert_f(data[j] == j, "mismatch at %i: %i\n", j, data[j]);
munmap(data, LINEAR_DWORDS);
}
uint32_t *bo_handles;
struct thread {
@ -102,19 +127,6 @@ struct thread {
int fd, count;
};
static void
check_bo(int fd, uint32_t handle)
{
uint32_t *data;
int j;
/* Check the target bo's contents. */
data = gem_mmap(fd, handle, LINEAR_DWORDS, PROT_READ | PROT_WRITE);
j = rand() % (WIDTH * HEIGHT);
igt_assert_f(data[j] == j, "mismatch at %i: %i\n", j, data[j]);
munmap(data, LINEAR_DWORDS);
}
static void *thread_run(void *data)
{
struct thread *t = data;
@ -181,28 +193,40 @@ igt_main
intel_require_memory(count, 1024*1024, CHECK_RAM | CHECK_SWAP);
for (n = 0; n < count; n++) {
bo_handles[n] = create_bo_and_fill(fd);
bo_handles[n] = create_bo(fd);
/* Not enough mmap address space possible. */
igt_require(bo_handles[n]);
}
}
igt_subtest("non-threaded") {
for (n = 0; n < count; n++)
fill_bo(fd, bo_handles[n]);
thread_init(&threads[0], fd, count);
thread_run(&threads[0]);
thread_run(&threads[0]);
thread_run(&threads[0]);
thread_fini(&threads[0]);
}
/* Once more with threads */
igt_subtest("threaded") {
for (n = 0; n < num_threads; n++) {
for (n = 0; n < count; n++)
fill_bo(fd, bo_handles[n]);
for (n = 0; n < num_threads; n++)
thread_init(&threads[n], fd, count);
thread_run(&threads[0]);
for (n = 0; n < num_threads; n++)
pthread_create(&threads[n].thread, NULL, thread_run, &threads[n]);
}
for (n = 0; n < num_threads; n++) {
for (n = 0; n < num_threads; n++)
pthread_join(threads[n].thread, NULL);
thread_run(&threads[0]);
for (n = 0; n < num_threads; n++)
thread_fini(&threads[n]);
}
}
close(fd);