[Intel-gfx] [PATCH] drm: fix plane rotation when restoring fbdev configuration

Thomas Wood thomas.wood at intel.com
Fri Aug 15 17:34:52 CEST 2014


On 15 August 2014 11:22, Daniel Vetter <daniel at ffwll.ch> wrote:
> On Fri, Aug 15, 2014 at 10:48:05AM +0100, Thomas Wood wrote:
>> On 15 August 2014 10:42, Thomas Wood <thomas.wood at intel.com> wrote:
>> > On 14 August 2014 17:02, Daniel Vetter <daniel at ffwll.ch> wrote:
>> >> On Thu, Aug 14, 2014 at 04:33:18PM +0100, Thomas Wood wrote:
>> >>> Make sure plane rotation is reset correctly when restoring the fbdev
>> >>> configuration by using drm_mode_plane_set_obj_prop. This calls the
>> >>> driver's set_property callback and ensures the rotation is actually
>> >>> changed.
>> >>>
>> >>> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82236
>> >>> Signed-off-by: Thomas Wood <thomas.wood at intel.com>
>> >>
>> >> Commit message is missing the citation of the offending commit that
>> >> introduced this. With that addressed this is
>> >>
>> >> Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>
>> >>
>> >> And please cc all the people involved in the offending commit next time
>> >> around, too.
>> >
>> > The "reset" feature was introduced in commit 9783de2 (drm: Resetting
>> > rotation property), although it also looks like the issue was
>> > originally addressed in a previous version of the patch:
>> >
>> > http://lists.freedesktop.org/archives/dri-devel/2014-July/062981.html
>> >
>> > Although this version calls the driver's set_property directly rather
>> > than exporting drm_mode_plane_set_obj_prop.
>> >
>> > The final version of the patch contains a different change:
>>
>> http://lists.freedesktop.org/archives/dri-devel/2014-August/065728.html
>>
>> So there were actually two different "v2" versions of the patch.
>
> Somehow I've thought this is for -fixes, but the patch is only in dinq. So
> merged, thanks.
> -Daniel

Is there any preference to calling set_property directly (as
originally fixed), as opposed to exporting and using
drm_mode_plane_set_obj_prop?

I have also pushed a patch for igt/kms_rotate_crc to add a testcase
for this issue:

http://lists.freedesktop.org/archives/intel-gfx/2014-August/050775.html

>
>>
>>
>>
>> >
>> >> -Daniel
>> >>> ---
>> >>>  drivers/gpu/drm/drm_crtc.c      | 25 ++++++++++++++++++++-----
>> >>>  drivers/gpu/drm/drm_fb_helper.c |  6 +++---
>> >>>  include/drm/drm_crtc.h          |  3 +++
>> >>>  3 files changed, 26 insertions(+), 8 deletions(-)
>> >>>
>> >>> diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
>> >>> index f09b752..95f330a 100644
>> >>> --- a/drivers/gpu/drm/drm_crtc.c
>> >>> +++ b/drivers/gpu/drm/drm_crtc.c
>> >>> @@ -4175,12 +4175,25 @@ static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
>> >>>       return ret;
>> >>>  }
>> >>>
>> >>> -static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
>> >>> -                                   struct drm_property *property,
>> >>> -                                   uint64_t value)
>> >>> +/**
>> >>> + * drm_mode_plane_set_obj_prop - set the value of a property
>> >>> + * @plane: drm plane object to set property value for
>> >>> + * @property: property to set
>> >>> + * @val: value the property should be set to
>> >>> + *
>> >>> + * This functions sets a given property on a given plane object. This function
>> >>> + * calls the driver's ->set_property callback and changes the software state of
>> >>> + * the property if the callback succeeds.
>> >>> + *
>> >>> + * Returns:
>> >>> + * Zero on success, error code on failure.
>> >>> + */
>> >>> +int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
>> >>> +                             struct drm_property *property,
>> >>> +                             uint64_t value)
>> >>>  {
>> >>>       int ret = -EINVAL;
>> >>> -     struct drm_plane *plane = obj_to_plane(obj);
>> >>> +     struct drm_mode_object *obj = &plane->base;
>> >>>
>> >>>       if (plane->funcs->set_property)
>> >>>               ret = plane->funcs->set_property(plane, property, value);
>> >>> @@ -4189,6 +4202,7 @@ static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
>> >>>
>> >>>       return ret;
>> >>>  }
>> >>> +EXPORT_SYMBOL(drm_mode_plane_set_obj_prop);
>> >>>
>> >>>  /**
>> >>>   * drm_mode_getproperty_ioctl - get the current value of a object's property
>> >>> @@ -4327,7 +4341,8 @@ int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
>> >>>               ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
>> >>>               break;
>> >>>       case DRM_MODE_OBJECT_PLANE:
>> >>> -             ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value);
>> >>> +             ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj),
>> >>> +                                               property, arg->value);
>> >>>               break;
>> >>>       }
>> >>>
>> >>> diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
>> >>> index 63d7b8e..0c0c39b 100644
>> >>> --- a/drivers/gpu/drm/drm_fb_helper.c
>> >>> +++ b/drivers/gpu/drm/drm_fb_helper.c
>> >>> @@ -296,9 +296,9 @@ static bool restore_fbdev_mode(struct drm_fb_helper *fb_helper)
>> >>>                       drm_plane_force_disable(plane);
>> >>>
>> >>>               if (dev->mode_config.rotation_property) {
>> >>> -                     drm_object_property_set_value(&plane->base,
>> >>> -                                     dev->mode_config.rotation_property,
>> >>> -                                     BIT(DRM_ROTATE_0));
>> >>> +                     drm_mode_plane_set_obj_prop(plane,
>> >>> +                                                 dev->mode_config.rotation_property,
>> >>> +                                                 BIT(DRM_ROTATE_0));
>> >>>               }
>> >>>       }
>> >>>
>> >>> diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
>> >>> index 0375d75..31344bf 100644
>> >>> --- a/include/drm/drm_crtc.h
>> >>> +++ b/include/drm/drm_crtc.h
>> >>> @@ -1127,6 +1127,9 @@ extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
>> >>>                                            struct drm_file *file_priv);
>> >>>  extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
>> >>>                                          struct drm_file *file_priv);
>> >>> +extern int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
>> >>> +                                    struct drm_property *property,
>> >>> +                                    uint64_t value);
>> >>>
>> >>>  extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
>> >>>                                int *bpp);
>> >>> --
>> >>> 1.9.3
>> >>>
>> >>> _______________________________________________
>> >>> Intel-gfx mailing list
>> >>> Intel-gfx at lists.freedesktop.org
>> >>> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>> >>
>> >> --
>> >> Daniel Vetter
>> >> Software Engineer, Intel Corporation
>> >> +41 (0) 79 365 57 48 - http://blog.ffwll.ch
>> >> _______________________________________________
>> >> Intel-gfx mailing list
>> >> Intel-gfx at lists.freedesktop.org
>> >> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> +41 (0) 79 365 57 48 - http://blog.ffwll.ch



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