drm/i915/selftests: Fixup naked 64b divide

drivers/gpu/drm/i915/intel_memory_region.o: in function `igt_mock_contiguous':
drivers/gpu/drm/i915/selftests/intel_memory_region.c:166: undefined reference to `__umoddi3'

v2: promote target to u64 for consistency across all builds

Reported-by: kbuild test robot <lkp@intel.com>
Fixes: 2f0b97ca0211 ("drm/i915/region: support contiguous allocations")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191013114509.3405-1-chris@chris-wilson.co.uk

diff --git a/drivers/gpu/drm/i915/selftests/intel_memory_region.c b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
index 4e44c81..56091e7 100644 (file)
--- a/drivers/gpu/drm/i915/selftests/intel_memory_region.c
+++ b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
@@ -128,9 +128,9 @@ static int igt_mock_contiguous(void *arg)
        LIST_HEAD(objects);
        LIST_HEAD(holes);
        I915_RND_STATE(prng);
-       resource_size_t target;
        resource_size_t total;
        resource_size_t min;
+       u64 target;
        int err = 0;
 
        total = resource_size(&mem->region);
@@ -163,7 +163,9 @@ static int igt_mock_contiguous(void *arg)
        igt_object_release(obj);
 
        /* Internal fragmentation should not bleed into the object size */
-       target = round_up(prandom_u32_state(&prng) % total, PAGE_SIZE);
+       target = i915_prandom_u64_state(&prng);
+       div64_u64_rem(target, total, &target);
+       target = round_up(target, PAGE_SIZE);
        target = max_t(u64, PAGE_SIZE, target);
 
        obj = igt_object_create(mem, &objects, target,
@@ -172,8 +174,8 @@ static int igt_mock_contiguous(void *arg)
                return PTR_ERR(obj);
 
        if (obj->base.size != target) {
-               pr_err("%s obj->base.size(%llx) != target(%llx)\n", __func__,
-                      (u64)obj->base.size, (u64)target);
+               pr_err("%s obj->base.size(%zx) != target(%llx)\n", __func__,
+                      obj->base.size, target);
                err = -EINVAL;
                goto err_close_objects;
        }
@@ -236,7 +238,7 @@ static int igt_mock_contiguous(void *arg)
                                        I915_BO_ALLOC_CONTIGUOUS);
                if (should_fail != IS_ERR(obj)) {
                        pr_err("%s target allocation(%llx) mismatch\n",
-                              __func__, (u64)target);
+                              __func__, target);
                        err = -EINVAL;
                        goto err_close_objects;
                }