static void test_swapping_evictions(int fd, int size, int count)
{
int trash_count;
trash_count = intel_get_total_ram_mb() * 11 / 10;
intel_require_memory(trash_count, size, CHECK_RAM | CHECK_SWAP);
swapping_evictions(fd, &fault_ops, size, count, trash_count);
}
static void test_forking_evictions(int fd, int size, int count,
unsigned flags)
{
int trash_count;
trash_count = intel_get_total_ram_mb() * 11 / 10;
intel_require_memory(trash_count, size, CHECK_RAM | CHECK_SWAP);
forking_evictions(fd, &fault_ops, size, count, trash_count, flags);
}
int main(int argc, char **argv)
{
drm_intel_bo *bo[4096];
uint32_t bo_start_val[4096];
uint32_t start = 0;
int fd, i, count;
igt_skip_on_simulation();
fd = drm_open_any();
count = 3 * gem_aperture_size(fd) / (1024*1024) / 2;
if (count > intel_get_total_ram_mb() * 9 / 10) {
count = intel_get_total_ram_mb() * 9 / 10;
printf("not enough RAM to run test, reducing buffer count\n");
}
count |= 1;
printf("Using %d 1MiB buffers\n", count);
bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
drm_intel_bufmgr_gem_enable_reuse(bufmgr);
batch = intel_batchbuffer_alloc(bufmgr, intel_get_drm_devid(fd));
for (i = 0; i < count; i++) {
bo[i] = create_bo(fd, start);
bo_start_val[i] = start;
/*
printf("Creating bo %d\n", i);
check_bo(bo[i], bo_start_val[i]);
*/
start += 1024 * 1024 / 4;
}
for (i = 0; i < count; i++) {
int src = count - i - 1;
intel_copy_bo(batch, bo[i], bo[src], width, height);
bo_start_val[i] = bo_start_val[src];
}
for (i = 0; i < count * 4; i++) {
int src = random() % count;
int dst = random() % count;
if (src == dst)
continue;
intel_copy_bo(batch, bo[dst], bo[src], width, height);
bo_start_val[dst] = bo_start_val[src];
/*
check_bo(bo[dst], bo_start_val[dst]);
printf("%d: copy bo %d to %d\n", i, src, dst);
*/
}
for (i = 0; i < count; i++) {
/*
printf("check %d\n", i);
*/
check_bo(fd, bo[i], bo_start_val[i]);
drm_intel_bo_unreference(bo[i]);
bo[i] = NULL;
}
intel_batchbuffer_free(batch);
drm_intel_bufmgr_destroy(bufmgr);
close(fd);
return 0;
}
static void big_exec(int fd, uint32_t handle, int ring)
{
struct drm_i915_gem_execbuffer2 execbuf;
struct drm_i915_gem_exec_object2 *gem_exec;
uint32_t ctx_id1, ctx_id2;
int num_buffers = gem_available_aperture_size(fd) / 4096;
int i;
/* Make sure we only fill half of RAM with gem objects. */
igt_require(intel_get_total_ram_mb() * 1024 / 2 > num_buffers * 4);
gem_exec = calloc(num_buffers + 1, sizeof(*gem_exec));
igt_assert(gem_exec);
memset(gem_exec, 0, (num_buffers + 1) * sizeof(*gem_exec));
ctx_id1 = gem_context_create(fd);
ctx_id2 = gem_context_create(fd);
gem_exec[0].handle = handle;
execbuf.buffers_ptr = (uintptr_t)gem_exec;
execbuf.buffer_count = num_buffers + 1;
execbuf.batch_start_offset = 0;
execbuf.batch_len = 8;
execbuf.cliprects_ptr = 0;
execbuf.num_cliprects = 0;
execbuf.DR1 = 0;
execbuf.DR4 = 0;
execbuf.flags = ring;
execbuf.rsvd2 = 0;
execbuf.buffer_count = 1;
i915_execbuffer2_set_context_id(execbuf, ctx_id1);
do_ioctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf);
for (i = 0; i < num_buffers; i++) {
uint32_t tmp_handle = gem_create(fd, 4096);
gem_exec[i].handle = tmp_handle;
}
gem_exec[i].handle = handle;
execbuf.buffer_count = i + 1;
/* figure out how many buffers we can exactly fit */
while (drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2,
&execbuf) != 0) {
i--;
gem_close(fd, gem_exec[i].handle);
gem_exec[i].handle = handle;
execbuf.buffer_count--;
igt_info("trying buffer count %i\n", i - 1);
}
igt_info("reduced buffer count to %i from %i\n",
i - 1, num_buffers);
/* double check that it works */
do_ioctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf);
i915_execbuffer2_set_context_id(execbuf, ctx_id2);
do_ioctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf);
gem_sync(fd, handle);
}
