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drm/vbox: Convert to Linux IRQ interfaces

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Drop the DRM IRQ midlayer in favor of Linux IRQ interfaces. DRM's
IRQ helpers are mostly useful for UMS drivers. Modern KMS drivers
don't benefit from using it.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210706075011.9009-1-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2021-07-06 09:50:11 +02:00
parent 48bd858084
commit db20ea679d
3 changed files with 11 additions and 7 deletions
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1
drivers/gpu/drm/vboxvideo/vbox_drv.c
View file

@ -184,7 +184,6 @@ static const struct drm_driver driver = {
.lastclose = drm_fb_helper_lastclose,
.fops = &vbox_fops,
.irq_handler = vbox_irq_handler,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,

1
drivers/gpu/drm/vboxvideo/vbox_drv.h
View file

@ -145,7 +145,6 @@ void vbox_mm_fini(struct vbox_private *vbox);
int vbox_irq_init(struct vbox_private *vbox);
void vbox_irq_fini(struct vbox_private *vbox);
void vbox_report_hotplug(struct vbox_private *vbox);
irqreturn_t vbox_irq_handler(int irq, void *arg);
/* vbox_hgsmi.c */
void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size,

16
drivers/gpu/drm/vboxvideo/vbox_irq.c
View file

@ -10,7 +10,8 @@
*/
#include <linux/pci.h>
#include <drm/drm_irq.h>
#include <drm/drm_drv.h>
#include <drm/drm_probe_helper.h>
#include "vbox_drv.h"
@ -31,7 +32,7 @@ void vbox_report_hotplug(struct vbox_private *vbox)
schedule_work(&vbox->hotplug_work);
}
irqreturn_t vbox_irq_handler(int irq, void *arg)
static irqreturn_t vbox_irq_handler(int irq, void *arg)
{
struct drm_device *dev = (struct drm_device *)arg;
struct vbox_private *vbox = to_vbox_dev(dev);
@ -170,16 +171,21 @@ static void vbox_hotplug_worker(struct work_struct *work)
int vbox_irq_init(struct vbox_private *vbox)
{
struct pci_dev *pdev = to_pci_dev(vbox->ddev.dev);
struct drm_device *dev = &vbox->ddev;
struct pci_dev *pdev = to_pci_dev(dev->dev);
INIT_WORK(&vbox->hotplug_work, vbox_hotplug_worker);
vbox_update_mode_hints(vbox);
return drm_irq_install(&vbox->ddev, pdev->irq);
/* PCI devices require shared interrupts. */
return request_irq(pdev->irq, vbox_irq_handler, IRQF_SHARED, dev->driver->name, dev);
}
void vbox_irq_fini(struct vbox_private *vbox)
{
drm_irq_uninstall(&vbox->ddev);
struct drm_device *dev = &vbox->ddev;
struct pci_dev *pdev = to_pci_dev(dev->dev);
free_irq(pdev->irq, dev);
flush_work(&vbox->hotplug_work);
}