Re: [PATCH 01/14] drm: add new plane property FB_DAMAGE_CLIPS to send damage during plane update

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On Thu, Sep 06, 2018 at 10:32:58PM +0000, Deepak Singh Rawat wrote:
> > 
> > On Wed, Sep 05, 2018 at 04:38:48PM -0700, Deepak Rawat wrote:
> > > From: Lukasz Spintzyk <lukasz.spintzyk@xxxxxxxxxxxxxxx>
> > >
> > > FB_DAMAGE_CLIPS is an optional plane property to mark damaged regions
> > > on the plane in framebuffer coordinates of the framebuffer attached to
> > > the plane.
> > >
> > > The layout of blob data is simply an array of "struct drm_mode_rect"
> > > with maximum array size limited by DRM_MODE_FB_DIRTY_MAX_CLIPS.
> > Unlike
> > > plane src coordinates, damage clips are not in 16.16 fixed point. As
> > > plane src in framebuffer cannot be negative so are damage clips. In
> > > damage clip, x1/y1 are inclusive and x2/y2 are exclusive.
> > >
> > > This patch also exports the kernel internal drm_rect to userspace as
> > > drm_mode_rect. This is because "struct drm_clip_rect" is not sufficient
> > > to represent damage for current plane size.
> > >
> > > Upper limit is set on the maximum number of damage clips to avoid
> > > overflow by user-space.
> > >
> > > Driver which are interested in enabling FB_DAMAGE_CLIPS property for a
> > > plane should enable this property using drm_plane_enable_damage_clips.
> > >
> > > Signed-off-by: Lukasz Spintzyk <lukasz.spintzyk@xxxxxxxxxxxxxxx>
> > > Signed-off-by: Deepak Rawat <drawat@xxxxxxxxxx>
> > > ---
> > >  Documentation/gpu/drm-kms.rst       |  9 +++
> > >  drivers/gpu/drm/Makefile            |  2 +-
> > >  drivers/gpu/drm/drm_atomic.c        | 13 ++++
> > >  drivers/gpu/drm/drm_atomic_helper.c |  4 ++
> > >  drivers/gpu/drm/drm_damage_helper.c | 92
> > +++++++++++++++++++++++++++++
> > >  drivers/gpu/drm/drm_mode_config.c   |  6 ++
> > >  drivers/gpu/drm/vmwgfx/vmwgfx_kms.c |  1 +
> > >  include/drm/drm_damage_helper.h     | 63 ++++++++++++++++++++
> > >  include/drm/drm_mode_config.h       | 10 ++++
> > >  include/drm/drm_plane.h             |  8 +++
> > >  include/uapi/drm/drm_mode.h         | 19 ++++++
> > >  11 files changed, 226 insertions(+), 1 deletion(-)
> > >  create mode 100644 drivers/gpu/drm/drm_damage_helper.c
> > >  create mode 100644 include/drm/drm_damage_helper.h
> > >
> > > diff --git a/Documentation/gpu/drm-kms.rst b/Documentation/gpu/drm-
> > kms.rst
> > > index 5dee6b8a4c12..78b66e628857 100644
> > > --- a/Documentation/gpu/drm-kms.rst
> > > +++ b/Documentation/gpu/drm-kms.rst
> > > @@ -542,6 +542,15 @@ Plane Composition Properties
> > >  .. kernel-doc:: drivers/gpu/drm/drm_blend.c
> > >     :export:
> > >
> > > +FB_DAMAGE_CLIPS
> > > +~~~~~~~~~~~~~~~
> > > +
> > > +.. kernel-doc:: drivers/gpu/drm/drm_damage_helper.c
> > > +   :doc: overview
> > > +
> > > +.. kernel-doc:: drivers/gpu/drm/drm_damage_helper.c
> > > +   :export:
> > > +
> > >  Color Management Properties
> > >  ---------------------------
> > >
> > > diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
> > > index a6771cef85e2..ca5be0decb3f 100644
> > > --- a/drivers/gpu/drm/Makefile
> > > +++ b/drivers/gpu/drm/Makefile
> > > @@ -35,7 +35,7 @@ drm_kms_helper-y := drm_crtc_helper.o
> > drm_dp_helper.o drm_probe_helper.o \
> > >  		drm_plane_helper.o drm_dp_mst_topology.o
> > drm_atomic_helper.o \
> > >  		drm_kms_helper_common.o drm_dp_dual_mode_helper.o
> > \
> > >  		drm_simple_kms_helper.o drm_modeset_helper.o \
> > > -		drm_scdc_helper.o drm_gem_framebuffer_helper.o
> > > +		drm_scdc_helper.o drm_gem_framebuffer_helper.o
> > drm_damage_helper.o
> > >
> > >  drm_kms_helper-$(CONFIG_DRM_PANEL_BRIDGE) += bridge/panel.o
> > >  drm_kms_helper-$(CONFIG_DRM_FBDEV_EMULATION) +=
> > drm_fb_helper.o
> > > diff --git a/drivers/gpu/drm/drm_atomic.c
> > b/drivers/gpu/drm/drm_atomic.c
> > > index 3eb061e11e2e..652e78ca1f81 100644
> > > --- a/drivers/gpu/drm/drm_atomic.c
> > > +++ b/drivers/gpu/drm/drm_atomic.c
> > > @@ -857,6 +857,8 @@ static int drm_atomic_plane_set_property(struct
> > drm_plane *plane,
> > >  {
> > >  	struct drm_device *dev = plane->dev;
> > >  	struct drm_mode_config *config = &dev->mode_config;
> > > +	bool replaced = false;
> > > +	int ret;
> > >
> > >  	if (property == config->prop_fb_id) {
> > >  		struct drm_framebuffer *fb =
> > drm_framebuffer_lookup(dev, NULL, val);
> > > @@ -908,6 +910,14 @@ static int drm_atomic_plane_set_property(struct
> > drm_plane *plane,
> > >  		state->color_encoding = val;
> > >  	} else if (property == plane->color_range_property) {
> > >  		state->color_range = val;
> > > +	} else if (property == config->prop_fb_damage_clips) {
> > > +		ret = drm_atomic_replace_property_blob_from_id(dev,
> > > +					&state->fb_damage_clips,
> > > +					val,
> > > +					-1,
> > > +					sizeof(struct drm_rect),
> > > +					&replaced);
> > > +		return ret;
> > >  	} else if (plane->funcs->atomic_set_property) {
> > >  		return plane->funcs->atomic_set_property(plane, state,
> > >  				property, val);
> > > @@ -976,6 +986,9 @@ drm_atomic_plane_get_property(struct drm_plane
> > *plane,
> > >  		*val = state->color_encoding;
> > >  	} else if (property == plane->color_range_property) {
> > >  		*val = state->color_range;
> > > +	} else if (property == config->prop_fb_damage_clips) {
> > > +		*val = (state->fb_damage_clips) ?
> > > +			state->fb_damage_clips->base.id : 0;
> > >  	} else if (plane->funcs->atomic_get_property) {
> > >  		return plane->funcs->atomic_get_property(plane, state,
> > property, val);
> > >  	} else {
> > > diff --git a/drivers/gpu/drm/drm_atomic_helper.c
> > b/drivers/gpu/drm/drm_atomic_helper.c
> > > index 80be74df7ba6..be83e2763c18 100644
> > > --- a/drivers/gpu/drm/drm_atomic_helper.c
> > > +++ b/drivers/gpu/drm/drm_atomic_helper.c
> > > @@ -3576,6 +3576,7 @@ void drm_atomic_helper_plane_reset(struct
> > drm_plane *plane)
> > >  		/* Reset the alpha value to fully opaque if it matters */
> > >  		if (plane->alpha_property)
> > >  			plane->state->alpha = plane->alpha_property-
> > >values[1];
> > > +		plane->state->fb_damage_clips = NULL;
> > >  	}
> > >  }
> > >  EXPORT_SYMBOL(drm_atomic_helper_plane_reset);
> > > @@ -3598,6 +3599,7 @@ void
> > __drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane,
> > >
> > >  	state->fence = NULL;
> > >  	state->commit = NULL;
> > > +	state->fb_damage_clips = NULL;
> > >  }
> > >  EXPORT_SYMBOL(__drm_atomic_helper_plane_duplicate_state);
> > >
> > > @@ -3642,6 +3644,8 @@ void
> > __drm_atomic_helper_plane_destroy_state(struct drm_plane_state *state)
> > >
> > >  	if (state->commit)
> > >  		drm_crtc_commit_put(state->commit);
> > > +
> > > +	drm_property_blob_put(state->fb_damage_clips);
> > >  }
> > >  EXPORT_SYMBOL(__drm_atomic_helper_plane_destroy_state);
> > >
> > > diff --git a/drivers/gpu/drm/drm_damage_helper.c
> > b/drivers/gpu/drm/drm_damage_helper.c
> > > new file mode 100644
> > > index 000000000000..3e7de5afe7f6
> > > --- /dev/null
> > > +++ b/drivers/gpu/drm/drm_damage_helper.c
> > > @@ -0,0 +1,92 @@
> > > +// SPDX-License-Identifier: GPL-2.0 OR MIT
> > >
> > +/*********************************************************
> > *****************
> > > + *
> > > + * Copyright (c) 2018 VMware, Inc., Palo Alto, CA., USA
> > > + * All Rights Reserved.
> > > + *
> > > + * Permission is hereby granted, free of charge, to any person obtaining a
> > > + * copy of this software and associated documentation files (the
> > > + * "Software"), to deal in the Software without restriction, including
> > > + * without limitation the rights to use, copy, modify, merge, publish,
> > > + * distribute, sub license, and/or sell copies of the Software, and to
> > > + * permit persons to whom the Software is furnished to do so, subject to
> > > + * the following conditions:
> > > + *
> > > + * The above copyright notice and this permission notice (including the
> > > + * next paragraph) shall be included in all copies or substantial portions
> > > + * of the Software.
> > > + *
> > > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
> > KIND, EXPRESS OR
> > > + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> > MERCHANTABILITY,
> > > + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN
> > NO EVENT SHALL
> > > + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE
> > FOR ANY CLAIM,
> > > + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
> > CONTRACT, TORT OR
> > > + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
> > SOFTWARE OR THE
> > > + * USE OR OTHER DEALINGS IN THE SOFTWARE.
> > > + *
> > > + * Authors:
> > > + * Deepak Rawat <drawat@xxxxxxxxxx>
> > > + *
> > > +
> > **********************************************************
> > ****************/
> > > +
> > > +#include <drm/drmP.h>
> > > +#include <drm/drm_damage_helper.h>
> > > +
> > > +/**
> > > + * DOC: overview
> > > + *
> > > + * FB_DAMAGE_CLIPS is an optional plane property which provides a
> > means to
> > > + * specify a list of damage rectangles on a plane in framebuffer
> > coordinates of
> > > + * the framebuffer attached to the plane. In current context damage is
> > the area
> > > + * of plane framebuffer (excluding the framebuffer area which is outside
> > of
> > > + * plane src)
> > 
> > Not sure why the plane src coordinates need to be mentioned here. The
> > damage is just the part of the fb that has changed. Whether or not it
> > extends past the src coordinates is totally irrelevant as far as I can
> > see.
> 
> Thanks Ville for the review,
> 
> Well this is plane damage property and only those clips which falls inside
> will be used for plane update, so outside plane src is not required.

Actually we've never specified that properly. My usual interpretation is
that the plane is allowed to sample past the edge of the src rectangle
(to get nicer looking edges). But not sure whether that would be too
surprising to people though. So we might want follow the GL linear filter
rules by default, and if someone wants better looking edges we could
add a property that allows the filter to reach further past the edge.

> 
> > 
> > > that has changed since last plane update (also called page-flip).
> > > + * Only the area inside damage rectangles will be considered different
> > whether
> > > + * currently attached framebuffer is same as framebuffer attached during
> > last
> > > + * plane update or not.
> > > + *
> > > + * FB_DAMAGE_CLIPS is a hint to kernel which could be helpful for some
> > drivers
> > > + * to optimize internally especially for virtual devices where each
> > framebuffer
> > > + * change needs to be transmitted over network, usb, etc.
> > > + *
> > > + * Since FB_DAMAGE_CLIPS is a hint so it is an optional property. User-
> > space can
> > > + * ignore the damage clips property and in that case kernel will do a full
> > plane
> > > + * update. In case damage clips are provided then it is guaranteed that the
> > area
> > > + * inside damage clips will be updated to plane. For efficiency kernel can
> > do
> > > + * full update or more area than specified in damage clips.
> > > + *
> > > + * FB_DAMAGE_CLIPS is a blob property with the layout of blob data is
> > simply an
> > > + * array of drm_mode_rect(internally drm_rect) with maximum array size
> > limited
> > > + * by DRM_MODE_FB_DIRTY_MAX_CLIPS. Unlike plane src coordinates,
> > damage clips
> > > + * are not in 16.16 fixed point. Similar to plane src in framebuffer, damage
> > > + * clips cannot be negative. In damage clip, x1/y1 are inclusive and x2/y2
> > are
> > > + * exclusive.
> > > + *
> > > + * All the damage clips are in framebuffer coordinates and should be
> > inside
> > > + * plane src and if any clip falls outside plane src it will be ignored and
> > > + * user-space won't be notified of the same. As mentioned above,
> > sometimes
> > > + * kernel will do full plane update due to change in properties which can
> > affect
> > > + * full plane e.g. color management properties. Also during full modeset
> > damage
> > > + * is irrelevant so if provided by user-space it simply will be ignored.
> > > + * Whenever damage clips are ignored by kernel, user-space will not be
> > informed.
> > > + * If a user-space provides damage clips which doesn't encompass the
> > actual
> > > + * damage to framebuffer (since last plane update) will result in incorrect
> > > + * rendering during plane update.
> > > + *
> > > + * While kernel does not error for overlapped damage clips, it is
> > discouraged.
> > > + */
> > > +
> > > +/**
> > > + * drm_plane_enable_fb_damage_clips - enables plane fb damage clips
> > property
> > > + * @plane: plane on which to enable damage clips property
> > > + *
> > > + * This function lets driver to enable the damage clips property on a plane.
> > > + */
> > > +void drm_plane_enable_fb_damage_clips(struct drm_plane *plane)
> > > +{
> > > +	struct drm_device *dev = plane->dev;
> > > +	struct drm_mode_config *config = &dev->mode_config;
> > > +
> > > +	drm_object_attach_property(&plane->base, config-
> > >prop_fb_damage_clips,
> > > +				   0);
> > > +}
> > > +EXPORT_SYMBOL(drm_plane_enable_fb_damage_clips);
> > > diff --git a/drivers/gpu/drm/drm_mode_config.c
> > b/drivers/gpu/drm/drm_mode_config.c
> > > index 21e353bd3948..506f5a52733f 100644
> > > --- a/drivers/gpu/drm/drm_mode_config.c
> > > +++ b/drivers/gpu/drm/drm_mode_config.c
> > > @@ -298,6 +298,12 @@ static int
> > drm_mode_create_standard_properties(struct drm_device *dev)
> > >  		return -ENOMEM;
> > >  	dev->mode_config.prop_crtc_id = prop;
> > >
> > > +	prop = drm_property_create(dev, DRM_MODE_PROP_BLOB,
> > "FB_DAMAGE_CLIPS",
> > > +				   0);
> > > +	if (!prop)
> > > +		return -ENOMEM;
> > > +	dev->mode_config.prop_fb_damage_clips = prop;
> > > +
> > >  	prop = drm_property_create_bool(dev,
> > DRM_MODE_PROP_ATOMIC,
> > >  			"ACTIVE");
> > >  	if (!prop)
> > > diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> > b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> > > index 23beff5d8e3c..1edbae73d6d6 100644
> > > --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> > > +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> > > @@ -723,6 +723,7 @@ void vmw_du_plane_reset(struct drm_plane
> > *plane)
> > >  	plane->state = &vps->base;
> > >  	plane->state->plane = plane;
> > >  	plane->state->rotation = DRM_MODE_ROTATE_0;
> > > +	plane->state->fb_damage_clips = NULL;
> > >  }
> > >
> > >
> > > diff --git a/include/drm/drm_damage_helper.h
> > b/include/drm/drm_damage_helper.h
> > > new file mode 100644
> > > index 000000000000..217694e9168c
> > > --- /dev/null
> > > +++ b/include/drm/drm_damage_helper.h
> > > @@ -0,0 +1,63 @@
> > > +/* SPDX-License-Identifier: GPL-2.0 OR MIT */
> > >
> > +/*********************************************************
> > *****************
> > > + *
> > > + * Copyright (c) 2018 VMware, Inc., Palo Alto, CA., USA
> > > + * All Rights Reserved.
> > > + *
> > > + * Permission is hereby granted, free of charge, to any person obtaining a
> > > + * copy of this software and associated documentation files (the
> > > + * "Software"), to deal in the Software without restriction, including
> > > + * without limitation the rights to use, copy, modify, merge, publish,
> > > + * distribute, sub license, and/or sell copies of the Software, and to
> > > + * permit persons to whom the Software is furnished to do so, subject to
> > > + * the following conditions:
> > > + *
> > > + * The above copyright notice and this permission notice (including the
> > > + * next paragraph) shall be included in all copies or substantial portions
> > > + * of the Software.
> > > + *
> > > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
> > KIND, EXPRESS OR
> > > + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> > MERCHANTABILITY,
> > > + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN
> > NO EVENT SHALL
> > > + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE
> > FOR ANY CLAIM,
> > > + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
> > CONTRACT, TORT OR
> > > + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
> > SOFTWARE OR THE
> > > + * USE OR OTHER DEALINGS IN THE SOFTWARE.
> > > + *
> > > + * Authors:
> > > + * Deepak Rawat <drawat@xxxxxxxxxx>
> > > + *
> > > +
> > **********************************************************
> > ****************/
> > > +
> > > +#ifndef DRM_DAMAGE_HELPER_H_
> > > +#define DRM_DAMAGE_HELPER_H_
> > > +
> > > +/**
> > > + * drm_plane_get_damage_clips_count - returns damage clips count
> > > + * @state: Plane state
> > > + *
> > > + * Returns: Number of clips in plane fb_damage_clips blob property.
> > > + */
> > > +static inline uint32_t
> > > +drm_plane_get_damage_clips_count(const struct drm_plane_state
> > *state)
> > > +{
> > > +	return (state && state->fb_damage_clips) ?
> > > +		state->fb_damage_clips->length/sizeof(struct drm_rect) : 0;
> > > +}
> > > +
> > > +/**
> > > + * drm_plane_get_damage_clips - returns damage clips
> > > + * @state: Plane state
> > > + *
> > > + * Returns: Clips in plane fb_damage_clips blob property.
> > > + */
> > > +static inline struct drm_rect *
> > > +drm_plane_get_damage_clips(const struct drm_plane_state *state)
> > > +{
> > > +	return (struct drm_rect *)((state && state->fb_damage_clips) ?
> > > +				   state->fb_damage_clips->data : NULL);
> > > +}
> > > +
> > > +void drm_plane_enable_fb_damage_clips(struct drm_plane *plane);
> > > +
> > > +#endif
> > > diff --git a/include/drm/drm_mode_config.h
> > b/include/drm/drm_mode_config.h
> > > index a0b202e1d69a..8ccb5ddcd99d 100644
> > > --- a/include/drm/drm_mode_config.h
> > > +++ b/include/drm/drm_mode_config.h
> > > @@ -627,6 +627,16 @@ struct drm_mode_config {
> > >  	 * &drm_crtc.
> > >  	 */
> > >  	struct drm_property *prop_crtc_id;
> > > +	/**
> > > +	 * @prop_fb_damage_clips: Optional plane property to mark
> > damaged
> > > +	 * regions on the plane in framebuffer coordinates of the
> > framebuffer
> > > +	 * attached to the plane.
> > > +	 *
> > > +	 * The layout of blob data is simply an array of drm_mode_rect with
> > > +	 * maximum array size limited by
> > DRM_MODE_FB_DIRTY_MAX_CLIPS. Unlike
> > > +	 * plane src coordinates, damage clips are not in 16.16 fixed point.
> > > +	 */
> > > +	struct drm_property *prop_fb_damage_clips;
> > >  	/**
> > >  	 * @prop_active: Default atomic CRTC property to control the active
> > >  	 * state, which is the simplified implementation for DPMS in atomic
> > > diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
> > > index 8a152dc16ea5..bb8b0934119c 100644
> > > --- a/include/drm/drm_plane.h
> > > +++ b/include/drm/drm_plane.h
> > > @@ -182,6 +182,14 @@ struct drm_plane_state {
> > >  	 */
> > >  	struct drm_crtc_commit *commit;
> > >
> > > +	/**
> > > +	 * @fb_damage_clips:
> > > +	 *
> > > +	 * Blob representing damage (area in plane framebuffer that
> > changed
> > > +	 * since last page flip) as array of drm_rect in framebuffer coodinates.
> > > +	 */
> > > +	struct drm_property_blob *fb_damage_clips;
> > 
> > Don't we have a better place for this? Next to some other props etc. in
> > the plane state?
> 
> This is in plane state, sorry am I missing something ?

Just the placement inside the plane state looks rather random. More
logical to group it next to some other property stuff I think.

> 
> > 
> > What does "in framebuffer coordinates" mean? Integers, some fixed
> > point representation?
> 
> I guess better wording would be "in framebuffer coordinates of the
> frambebuffer attached to plane". I would make it more clear for v2,

I'm basically asking whether one is supposed to do
'.x1 = x' or '.x1 = x<<16' or something else, where x is an
interger pixel coordinate.

> 
> > 
> > > +
> > >  	/** @state: backpointer to global drm_atomic_state */
> > >  	struct drm_atomic_state *state;
> > >  };
> > > diff --git a/include/uapi/drm/drm_mode.h
> > b/include/uapi/drm/drm_mode.h
> > > index 8d67243952f4..862ea0893e2e 100644
> > > --- a/include/uapi/drm/drm_mode.h
> > > +++ b/include/uapi/drm/drm_mode.h
> > > @@ -887,6 +887,25 @@ struct drm_mode_revoke_lease {
> > >  	__u32 lessee_id;
> > >  };
> > >
> > > +/**
> > > + * struct drm_mode_rect - two dimensional rectangle
> > > + * @x1: horizontal starting coordinate (inclusive)
> > > + * @y1: vertical starting coordinate (inclusive)
> > > + * @x2: horizontal ending coordinate (exclusive)
> > > + * @y2: vertical ending coordinate (exclusive)
> > > + *
> > > + * With drm subsystem using struct drm_rect to manage rectangular area
> > this
> > > + * export it to user-space.
> > > + *
> > > + * Currently used by drm_mode_atomic blob property
> > FB_DAMAGE_CLIPS.
> > > + */
> > > +struct drm_mode_rect {
> > > +	__s32 x1;
> > > +	__s32 y1;
> > > +	__s32 x2;
> > > +	__s32 y2;
> > > +};
> > > +
> > >  #if defined(__cplusplus)
> > >  }
> > >  #endif
> > > --
> > > 2.17.1
> > >
> > > _______________________________________________
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> > eedesktop.org%2Fmailman%2Flistinfo%2Fdri-
> > devel&amp;data=02%7C01%7Cdrawat%40vmware.com%7C5c06b27d7534412
> > 8cb0f08d613f0534a%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C1%7C0%7C6
> > 36718320248896001&amp;sdata=2a2pS5CILMUyXDJgjIms59UUOso3LJRrpFW
> > Rypik40Y%3D&amp;reserved=0
> > 
> > --
> > Ville Syrjälä
> > Intel

-- 
Ville Syrjälä
Intel
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