Op 04-09-2020 om 16:39 schreef Daniel Vetter:
The big change is device_add so that device_del can auto-cleanup devres resources. This allows us to use devm_drm_dev_alloc, which removes the last user of drm_dev_init.
v2: Rebased
v3: use devres_open/release_group so we can use devm without real hacks in the driver core or having to create an entire fake bus for testing drivers. Might want to extract this into helpers eventually, maybe as a mock_drm_dev_alloc or test_drm_dev_alloc.
Signed-off-by: Daniel Vetter daniel.vetter@intel.com
.../gpu/drm/i915/selftests/mock_gem_device.c | 42 +++++++++++-------- 1 file changed, 25 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c index fbb403edb7a0..164ad1746da9 100644 --- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c +++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c @@ -128,12 +128,6 @@ struct drm_i915_private *mock_gem_device(void) pdev = kzalloc(sizeof(*pdev), GFP_KERNEL); if (!pdev) return NULL;
- i915 = kzalloc(sizeof(*i915), GFP_KERNEL);
- if (!i915) {
kfree(pdev);return NULL;- }
- device_initialize(&pdev->dev); pdev->class = PCI_BASE_CLASS_DISPLAY << 16; pdev->dev.release = release_dev;
@@ -146,8 +140,29 @@ struct drm_i915_private *mock_gem_device(void) iommu.priv = (void *)-1; pdev->dev.iommu = &iommu; #endif
err = device_add(&pdev->dev);
if (err) {
kfree(pdev);return NULL;}
if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL)) {
device_del(&pdev->dev);return NULL;}
i915 = devm_drm_dev_alloc(&pdev->dev, &mock_driver,
struct drm_i915_private, drm);if (err) {
pr_err("Failed to allocate mock GEM device: err=%d\n", err);devres_release_group(&pdev->dev, NULL);device_del(&pdev->dev);return NULL;}
pci_set_drvdata(pdev, i915);
i915->drm.pdev = pdev;
dev_pm_domain_set(&pdev->dev, &pm_domain); pm_runtime_enable(&pdev->dev);
@@ -155,16 +170,6 @@ struct drm_i915_private *mock_gem_device(void) if (pm_runtime_enabled(&pdev->dev)) WARN_ON(pm_runtime_get_sync(&pdev->dev));
err = drm_dev_init(&i915->drm, &mock_driver, &pdev->dev);
if (err) {
pr_err("Failed to initialise mock GEM device: err=%d\n", err);put_device(&pdev->dev);kfree(i915);return NULL;}
i915->drm.pdev = pdev;
drmm_add_final_kfree(&i915->drm, i915);
i915_params_copy(&i915->params, &i915_modparams);
@@ -231,5 +236,8 @@ struct drm_i915_private *mock_gem_device(void)
void mock_destroy_device(struct drm_i915_private *i915) {
- drm_dev_put(&i915->drm);
- struct device *dev = i915->drm.dev;
- devres_release_group(dev, NULL);
- device_del(dev);
}
Looks sane,
For patch 7 and 8:
Reviewed-by: Maarten Lankhorst maarten.lankhorst@linux.intel.com