[PATCH 4/4] drm/qxl: add drm_driver.release callback.

Gerd Hoffmann
2019-12-20T11:59:54Z

Move final cleanups to qxl_drm_release() callback.
Add drm_atomic_helper_shutdown() call to qxl_pci_remove().

Reorder calls in qxl_device_fini(). Cleaning up gem & ttm
might trigger qxl commands, so we should do that before
releaseing command rings.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
drivers/gpu/drm/qxl/qxl_drv.c | 21 ++++++++++++++-------
drivers/gpu/drm/qxl/qxl_kms.c | 8 ++++----
2 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index 1d601f57a6ba..8044363ba0f2 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -34,6 +34,7 @@
#include <linux/pci.h>

#include <drm/drm.h>
+#include <drm/drm_atomic_helper.h>
#include <drm/drm_drv.h>
#include <drm/drm_file.h>
#include <drm/drm_modeset_helper.h>
@@ -132,21 +133,25 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
return ret;
}

+static void qxl_drm_release(struct drm_device *dev)
+{
+ struct qxl_device *qdev = dev->dev_private;
+
+ qxl_modeset_fini(qdev);
+ qxl_device_fini(qdev);
+ dev->dev_private = NULL;
+ kfree(qdev);
+}
+
static void
qxl_pci_remove(struct pci_dev *pdev)
{
struct drm_device *dev = pci_get_drvdata(pdev);
- struct qxl_device *qdev = dev->dev_private;

drm_dev_unregister(dev);
-
- qxl_modeset_fini(qdev);
- qxl_device_fini(qdev);
+ drm_atomic_helper_shutdown(dev);
if (is_vga(pdev))
vga_put(pdev, VGA_RSRC_LEGACY_IO);
-
- dev->dev_private = NULL;
- kfree(qdev);
drm_dev_put(dev);
}

@@ -279,6 +284,8 @@ static struct drm_driver qxl_driver = {
.major = 0,
.minor = 1,
.patchlevel = 0,
+
+ .release = qxl_drm_release,
};

static int __init qxl_init(void)
diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
index bfc1631093e9..70b20ee4741a 100644
--- a/drivers/gpu/drm/qxl/qxl_kms.c
+++ b/drivers/gpu/drm/qxl/qxl_kms.c
@@ -299,12 +299,12 @@ void qxl_device_fini(struct qxl_device *qdev)
{
qxl_bo_unref(&qdev->current_release_bo[0]);
qxl_bo_unref(&qdev->current_release_bo[1]);
- flush_work(&qdev->gc_work);
- qxl_ring_free(qdev->command_ring);
- qxl_ring_free(qdev->cursor_ring);
- qxl_ring_free(qdev->release_ring);
qxl_gem_fini(qdev);
qxl_bo_fini(qdev);
+ flush_work(&qdev->gc_work);
+ qxl_ring_free(qdev->command_ring);
+ qxl_ring_free(qdev->cursor_ring);
+ qxl_ring_free(qdev->release_ring);
io_mapping_free(qdev->surface_mapping);
io_mapping_free(qdev->vram_mapping);
iounmap(qdev->ram_header);
--
2.18.1