[Intel-gfx] [PATCH 46/61] drm/i915/selftests: Prepare mman testcases for obj->mm.lock removal.

Maarten Lankhorst
2020-10-02T13:00:23Z

Ensure we hold the lock around put_pages, and use the unlocked wrappers
for pinning pages and mappings.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
index 3ac7628f3bc4..85fff8bed08c 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
@@ -321,7 +321,7 @@ static int igt_partial_tiling(void *arg)
if (IS_ERR(obj))
return PTR_ERR(obj);

- err = i915_gem_object_pin_pages(obj);
+ err = i915_gem_object_pin_pages_unlocked(obj);
if (err) {
pr_err("Failed to allocate %u pages (%lu total), err=%d\n",
nreal, obj->base.size / PAGE_SIZE, err);
@@ -458,7 +458,7 @@ static int igt_smoke_tiling(void *arg)
if (IS_ERR(obj))
return PTR_ERR(obj);

- err = i915_gem_object_pin_pages(obj);
+ err = i915_gem_object_pin_pages_unlocked(obj);
if (err) {
pr_err("Failed to allocate %u pages (%lu total), err=%d\n",
nreal, obj->base.size / PAGE_SIZE, err);
@@ -797,7 +797,7 @@ static int wc_set(struct drm_i915_gem_object *obj)
{
void *vaddr;

- vaddr = i915_gem_object_pin_map(obj, I915_MAP_WC);
+ vaddr = i915_gem_object_pin_map_unlocked(obj, I915_MAP_WC);
if (IS_ERR(vaddr))
return PTR_ERR(vaddr);

@@ -813,7 +813,7 @@ static int wc_check(struct drm_i915_gem_object *obj)
void *vaddr;
int err = 0;

- vaddr = i915_gem_object_pin_map(obj, I915_MAP_WC);
+ vaddr = i915_gem_object_pin_map_unlocked(obj, I915_MAP_WC);
if (IS_ERR(vaddr))
return PTR_ERR(vaddr);

@@ -1315,7 +1315,9 @@ static int __igt_mmap_revoke(struct drm_i915_private *i915,
}

if (type != I915_MMAP_TYPE_GTT) {
+ i915_gem_object_lock(obj, NULL);
__i915_gem_object_put_pages(obj);
+ i915_gem_object_unlock(obj);
if (i915_gem_object_has_pages(obj)) {
pr_err("Failed to put-pages object!\n");
err = -EINVAL;