diff options
Diffstat (limited to 'tests/i915/gem_pwrite.c')
| -rw-r--r-- | tests/i915/gem_pwrite.c | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/tests/i915/gem_pwrite.c b/tests/i915/gem_pwrite.c index 69f823d5..20e9728b 100644 --- a/tests/i915/gem_pwrite.c +++ b/tests/i915/gem_pwrite.c @@ -25,7 +25,6 @@ * */ -#include "igt.h" #include <unistd.h> #include <stdlib.h> #include <stdint.h> @@ -37,8 +36,12 @@ #include <sys/stat.h> #include <sys/ioctl.h> #include <sys/time.h> + #include "drm.h" +#include "igt.h" +#include "igt_rand.h" + #define MiB(x) ((x) * 1024 * 1024) typedef void *(*mmap_fn_t)(int, uint32_t, uint64_t, uint64_t, unsigned int); @@ -238,6 +241,41 @@ static void test_big_gtt(int fd, int scale, unsigned flags) gem_close(fd, handle); } +static void test_random(int fd) +{ + uint32_t prng = 0xdeadbeef; + unsigned long count; + uint32_t handle; + uint64_t *map; + uint64_t size; + + gem_require_mmap_wc(fd); + + size = min(intel_get_total_ram_mb() / 2, + gem_mappable_aperture_size() + 4096); + intel_require_memory(1, size, CHECK_RAM); + + handle = gem_create(fd, size); + map = gem_mmap__wc(fd, handle, 0, size, PROT_WRITE); + + count = 0; + igt_until_timeout(5) { + uint64_t a = hars_petruska_f54_1_random64(&prng) % (size / sizeof(uint64_t)); + uint64_t x = hars_petruska_f54_1_random64(&prng); + + gem_write(fd, handle, a * sizeof(x), &x, sizeof(x)); + + gem_set_domain(fd, handle, I915_GEM_DOMAIN_WC, 0); + igt_assert_eq_u64(map[a], x); + + count++; + } + igt_info("Completed %lu cycles\n", count); + + munmap(map, handle); + gem_close(fd, handle); +} + uint32_t *src, dst; uint32_t *src_user, dst_stolen; int fd; @@ -369,6 +407,9 @@ igt_main_args("s:", NULL, help_str, opt_handler, NULL) gem_close(fd, dst_stolen); } + igt_subtest_f("basic-random") + test_random(fd); + { const struct mode { const char *name; |