drm/vboxvideo: Use managed interfaces for framebuffer write combining

Replace arch_phys_wc_add() with the rsp managed function. Allows for
removing the cleanup code for memory management

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210916181601.9146-6-tzimmermann@suse.de

drm/vbox: Convert to Linux IRQ interfaces

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

drm/vboxvideo: Stop using drm_device->dev_private

We use the baseclass pattern here, so lets to the proper (and more
typesafe) upcasting.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200415074034.175360-5-daniel.vetter@ffwll.ch

drm/vboxvideo: Replace struct vram_framebuffer with generic implemenation

The vboxvideo driver's struct vram_framebuffer stores a DRM framebuffer
with an assiciated GEM object. This functionality is also provided by
generic code. Switch vboxvideo over.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191011134808.3955-4-tzimmermann@suse.de

drm/vboxvideo: Switch to drm_atomic_helper_dirty_fb()

The vboxvideo driver provides struct drm_framebuffer_funcs.dirty_fb from
its own implementation. Switch over to drm_atomic_helper_dirty_fb() and
handle screen updates in the primary plane's atomic_update function.

With dirty_fb out of the way, we can further replace struct vbox_frammebuffer
with generic code.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191011134808.3955-3-tzimmermann@suse.de

drm/vboxvideo: Switch to generic fbdev emulation

There's nothing special about vboxvideo's fbdev emulation that is
not provided by the generic implementation. Switch over and remove
the driver's code.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191011134808.3955-2-tzimmermann@suse.de

drm/vram: Move VRAM memory manager to GEM VRAM implementation

The separation between GEM VRAM objects and the memory manager is
artificial, as they are only used with each other. Copying both
implementations into the same file is a first step to simplifying
the code.

This patch only moves code without functional changes.

v3:
* update to use dev->vma_offset_manager
v2:
* update for debugfs support
* typos in commit message

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190911110910.30698-2-tzimmermann@suse.de

drm/vbox: Remove empty PRIME functions

The vbox driver uses VRAM helpers for memory management. These helpers
provide a basic implementation of PRIME functions, so the vbox driver's
empty implmentation can be removed. As a side effect of this change,
vbox can now use generic framebuffer emulation.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190702115012.4418-5-tzimmermann@suse.de

drm/vboxvideo: Convert vboxvideo driver to VRAM MM

The data structure |struct drm_vram_mm| and its helpers replace vboxvideo's
TTM-based memory manager. It's the same implementation; except for the type
names.

v4:
* don't select DRM_TTM or DRM_VRAM_MM_HELPER
v3:
* use drm_gem_vram_mm_funcs
* convert driver to drm_device-based instance
v2:
* implement vbox_mmap() with drm_vram_mm_mmap()

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-19-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

drm/vboxvideo: Convert vboxvideo driver to |struct drm_gem_vram_object|

This patch replaces |struct vbox_bo| and its helpers with the generic
implementation of |struct drm_gem_vram_object|. The only change in
semantics is that &ttm_bo_driver.verify_access() now does the actual
verification.

v4:
* select config option DRM_VRAM_HELPER
v3:
* remove forward declaration of struct vbox_gem_object
v2:
nothing

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-18-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

drm/vboxvideo: Remove unused including <linux/version.h>

Remove including <linux/version.h> that don't need it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190320015429.86347-1-yuehaibing@huawei.com

drm/vboxvideo: Move the vboxvideo driver out of staging

The vboxvideo driver has been converted to the atomic modesetting API
and all FIXME and TODO items have been fixed, so it is time to move it out
of staging.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190304164724.10210-4-hdegoede@redhat.com