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);
}
static void
test_huge_bo(int huge, int tiling)
{
uint64_t huge_object_size, last_offset;
char *ptr_cpu;
char *cpu_pattern;
uint32_t bo;
int i;
switch (huge) {
case -1:
huge_object_size = gem_mappable_aperture_size() / 2;
break;
case 0:
huge_object_size = gem_mappable_aperture_size() + PAGE_SIZE;
break;
default:
huge_object_size = gem_aperture_size(fd) + PAGE_SIZE;
break;
}
intel_require_memory(1, huge_object_size, CHECK_RAM);
last_offset = huge_object_size - PAGE_SIZE;
cpu_pattern = malloc(PAGE_SIZE);
igt_assert(cpu_pattern);
for (i = 0; i < PAGE_SIZE; i++)
cpu_pattern[i] = i;
bo = gem_create(fd, huge_object_size);
/* Obtain CPU mapping for the object. */
ptr_cpu = gem_mmap__cpu(fd, bo, 0, huge_object_size,
PROT_READ | PROT_WRITE);
igt_assert(ptr_cpu);
gem_set_domain(fd, bo, I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
gem_close(fd, bo);
/* Write first page through the mapping and assert reading it back
* works. */
memcpy(ptr_cpu, cpu_pattern, PAGE_SIZE);
igt_assert(memcmp(ptr_cpu, cpu_pattern, PAGE_SIZE) == 0);
/* Write last page through the mapping and assert reading it back
* works. */
memcpy(ptr_cpu + last_offset, cpu_pattern, PAGE_SIZE);
igt_assert(memcmp(ptr_cpu + last_offset, cpu_pattern, PAGE_SIZE) == 0);
/* Cross check that accessing two simultaneous pages works. */
igt_assert(memcmp(ptr_cpu, ptr_cpu + last_offset, PAGE_SIZE) == 0);
munmap(ptr_cpu, huge_object_size);
free(cpu_pattern);
}
static unsigned get_num_contexts(int fd)
{
uint64_t ggtt_size;
unsigned size;
unsigned count;
/* Compute the number of contexts we can allocate to fill the GGTT */
if (intel_gen(intel_get_drm_devid(fd)) >= 8)
ggtt_size = 1ull << 32;
else
ggtt_size = 1ull << 31;
size = 64 << 10; /* Most gen require at least 64k for ctx */
count = 3 * (ggtt_size / size) / 2;
igt_info("Creating %lld contexts (assuming of size %lld)\n",
(long long)count, (long long)size);
intel_require_memory(count, size, CHECK_RAM | CHECK_SWAP);
return count;
}
static void
test_huge_copy(int fd, int huge, int tiling_a, int tiling_b)
{
uint64_t huge_object_size, i;
uint32_t bo, *pattern_a, *pattern_b;
char *a, *b;
switch (huge) {
case -2:
huge_object_size = gem_mappable_aperture_size() / 4;
break;
case -1:
huge_object_size = gem_mappable_aperture_size() / 2;
break;
case 0:
huge_object_size = gem_mappable_aperture_size() + PAGE_SIZE;
break;
default:
huge_object_size = gem_aperture_size(fd) + PAGE_SIZE;
break;
}
intel_require_memory(2, huge_object_size, CHECK_RAM);
pattern_a = malloc(PAGE_SIZE);
for (i = 0; i < PAGE_SIZE/4; i++)
pattern_a[i] = i;
pattern_b = malloc(PAGE_SIZE);
for (i = 0; i < PAGE_SIZE/4; i++)
pattern_b[i] = ~i;
bo = gem_create(fd, huge_object_size);
if (tiling_a)
gem_set_tiling(fd, bo, tiling_a,
tiling_a == I915_TILING_Y ? 128 : 512);
a = __gem_mmap__gtt(fd, bo, huge_object_size, PROT_READ | PROT_WRITE);
igt_require(a);
gem_close(fd, bo);
for (i = 0; i < huge_object_size / PAGE_SIZE; i++)
memcpy(a + PAGE_SIZE*i, pattern_a, PAGE_SIZE);
bo = gem_create(fd, huge_object_size);
if (tiling_b)
gem_set_tiling(fd, bo, tiling_b,
tiling_b == I915_TILING_Y ? 128 : 512);
b = __gem_mmap__gtt(fd, bo, huge_object_size, PROT_READ | PROT_WRITE);
igt_require(b);
gem_close(fd, bo);
for (i = 0; i < huge_object_size / PAGE_SIZE; i++)
memcpy(b + PAGE_SIZE*i, pattern_b, PAGE_SIZE);
for (i = 0; i < huge_object_size / PAGE_SIZE; i++) {
if (i & 1)
memcpy(a + i *PAGE_SIZE, b + i*PAGE_SIZE, PAGE_SIZE);
else
memcpy(b + i *PAGE_SIZE, a + i*PAGE_SIZE, PAGE_SIZE);
}
for (i = 0; i < huge_object_size / PAGE_SIZE; i++) {
if (i & 1)
igt_assert(memcmp(pattern_b, a + PAGE_SIZE*i, PAGE_SIZE) == 0);
else
igt_assert(memcmp(pattern_a, a + PAGE_SIZE*i, PAGE_SIZE) == 0);
}
munmap(a, huge_object_size);
for (i = 0; i < huge_object_size / PAGE_SIZE; i++) {
if (i & 1)
igt_assert(memcmp(pattern_b, b + PAGE_SIZE*i, PAGE_SIZE) == 0);
else
igt_assert(memcmp(pattern_a, b + PAGE_SIZE*i, PAGE_SIZE) == 0);
}
munmap(b, huge_object_size);
free(pattern_a);
free(pattern_b);
}
static void
test_huge_bo(int fd, int huge, int tiling)
{
uint32_t bo;
char *ptr;
char *tiled_pattern;
char *linear_pattern;
uint64_t size, last_offset;
int pitch = tiling == I915_TILING_Y ? 128 : 512;
int i;
switch (huge) {
case -1:
size = gem_mappable_aperture_size() / 2;
break;
case 0:
size = gem_mappable_aperture_size() + PAGE_SIZE;
break;
default:
size = gem_aperture_size(fd) + PAGE_SIZE;
break;
}
intel_require_memory(1, size, CHECK_RAM);
last_offset = size - PAGE_SIZE;
/* Create pattern */
bo = gem_create(fd, PAGE_SIZE);
if (tiling)
gem_set_tiling(fd, bo, tiling, pitch);
linear_pattern = gem_mmap__gtt(fd, bo, PAGE_SIZE,
PROT_READ | PROT_WRITE);
for (i = 0; i < PAGE_SIZE; i++)
linear_pattern[i] = i;
tiled_pattern = gem_mmap__cpu(fd, bo, 0, PAGE_SIZE, PROT_READ);
gem_set_domain(fd, bo, I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT, 0);
gem_close(fd, bo);
bo = gem_create(fd, size);
if (tiling)
gem_set_tiling(fd, bo, tiling, pitch);
/* Initialise first/last page through CPU mmap */
ptr = gem_mmap__cpu(fd, bo, 0, size, PROT_READ | PROT_WRITE);
memcpy(ptr, tiled_pattern, PAGE_SIZE);
memcpy(ptr + last_offset, tiled_pattern, PAGE_SIZE);
munmap(ptr, size);
/* Obtain mapping for the object through GTT. */
ptr = __gem_mmap__gtt(fd, bo, size, PROT_READ | PROT_WRITE);
igt_require_f(ptr, "Huge BO GTT mapping not supported.\n");
set_domain_gtt(fd, bo);
/* Access through GTT should still provide the CPU written values. */
igt_assert(memcmp(ptr , linear_pattern, PAGE_SIZE) == 0);
igt_assert(memcmp(ptr + last_offset, linear_pattern, PAGE_SIZE) == 0);
gem_set_tiling(fd, bo, I915_TILING_NONE, 0);
igt_assert(memcmp(ptr , tiled_pattern, PAGE_SIZE) == 0);
igt_assert(memcmp(ptr + last_offset, tiled_pattern, PAGE_SIZE) == 0);
munmap(ptr, size);
gem_close(fd, bo);
munmap(tiled_pattern, PAGE_SIZE);
munmap(linear_pattern, PAGE_SIZE);
}
