Xen-Devel Archive on lore.kernel.org
 help / color / Atom feed
From: Thomas Zimmermann <tzimmermann@suse.de>
To: airlied@linux.ie, daniel@ffwll.ch, kraxel@redhat.com,
	maarten.lankhorst@linux.intel.com, mripard@kernel.org,
	hdegoede@redhat.com, david@lechnology.com, noralf@tronnes.org,
	sean@poorly.run, oleksandr_andrushchenko@epam.com,
	sam@ravnborg.org, laurent.pinchart@ideasonboard.com,
	emil.velikov@collabora.com
Cc: xen-devel@lists.xenproject.org, dri-devel@lists.freedesktop.or,
	Thomas Zimmermann <tzimmermann@suse.de>,
	virtualization@lists.linux-foundation.org
Subject: [Xen-devel] [PATCH v2 0/4] Use no_vblank property for drivers without VBLANK
Date: Mon, 13 Jan 2020 11:38:18 +0100
Message-ID: <20200113103822.24473-1-tzimmermann@suse.de> (raw)

Instead of faking VBLANK events by themselves, drivers without VBLANK
support can enable drm_crtc_vblank.no_vblank and let DRM do the rest.
The patchset makes this official and converts over several drivers.

Ast already uses the functionality and just needs a cleanup. Cirrus can
be converted easily by setting the field in the check() callback and
removing the existing VBLANK code. For most other simple-KMS drivers
without enable_vblank() and check(), simple-KMS helpers can enable the
faked VBLANK by default. The only exception is Xen, which comes with
its own VBLANK logic and should rather to disable no_vblank.

v2:
	* document functionality (Daniel)
	* cleanup ast (Daniel)
	* let simple-kms handle no_vblank where possible

Thomas Zimmermann (4):
  drm: Document struct drm_crtc_state.no_vblank for faking VBLANK events
  drm/ast: Set struct drm_crtc_state.no_vblank in atomic_check()
  drm/cirrus: Let DRM core send VBLANK events
  drm/simple-kms: Let DRM core send VBLANK events by default

 drivers/gpu/drm/ast/ast_mode.c          |  4 ++--
 drivers/gpu/drm/bochs/bochs_kms.c       |  9 ---------
 drivers/gpu/drm/cirrus/cirrus.c         | 10 ++--------
 drivers/gpu/drm/drm_atomic_helper.c     |  4 +++-
 drivers/gpu/drm/drm_mipi_dbi.c          |  9 ---------
 drivers/gpu/drm/drm_simple_kms_helper.c | 19 +++++++++++++++----
 drivers/gpu/drm/tiny/gm12u320.c         |  9 ---------
 drivers/gpu/drm/tiny/ili9225.c          |  9 ---------
 drivers/gpu/drm/tiny/repaper.c          |  9 ---------
 drivers/gpu/drm/tiny/st7586.c           |  9 ---------
 drivers/gpu/drm/udl/udl_modeset.c       | 11 -----------
 drivers/gpu/drm/xen/xen_drm_front_kms.c | 13 +++++++++++++
 include/drm/drm_crtc.h                  |  9 +++++++--
 include/drm/drm_simple_kms_helper.h     |  7 +++++--
 14 files changed, 47 insertions(+), 84 deletions(-)

--
2.24.1


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

             reply index

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-13 10:38 Thomas Zimmermann [this message]
2020-01-13 10:38 ` [Xen-devel] [PATCH v2 1/4] drm: Document struct drm_crtc_state.no_vblank for faking VBLANK events Thomas Zimmermann
2020-01-13 10:38 ` [Xen-devel] [PATCH v2 2/4] drm/ast: Set struct drm_crtc_state.no_vblank in atomic_check() Thomas Zimmermann
2020-01-13 10:38 ` [Xen-devel] [PATCH v2 3/4] drm/cirrus: Let DRM core send VBLANK events Thomas Zimmermann
2020-01-13 10:38 ` [Xen-devel] [PATCH v2 4/4] drm/simple-kms: Let DRM core send VBLANK events by default Thomas Zimmermann
2020-01-15 12:52 [Xen-devel] [PATCH v2 0/4] Use no_vblank property for drivers without VBLANK Thomas Zimmermann
2020-01-15 13:04 ` Hans de Goede

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200113103822.24473-1-tzimmermann@suse.de \
    --to=tzimmermann@suse.de \
    --cc=airlied@linux.ie \
    --cc=daniel@ffwll.ch \
    --cc=david@lechnology.com \
    --cc=dri-devel@lists.freedesktop.or \
    --cc=emil.velikov@collabora.com \
    --cc=hdegoede@redhat.com \
    --cc=kraxel@redhat.com \
    --cc=laurent.pinchart@ideasonboard.com \
    --cc=maarten.lankhorst@linux.intel.com \
    --cc=mripard@kernel.org \
    --cc=noralf@tronnes.org \
    --cc=oleksandr_andrushchenko@epam.com \
    --cc=sam@ravnborg.org \
    --cc=sean@poorly.run \
    --cc=virtualization@lists.linux-foundation.org \
    --cc=xen-devel@lists.xenproject.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Xen-Devel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/xen-devel/0 xen-devel/git/0.git
	git clone --mirror https://lore.kernel.org/xen-devel/1 xen-devel/git/1.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 xen-devel xen-devel/ https://lore.kernel.org/xen-devel \
		xen-devel@lists.xenproject.org xen-devel@lists.xen.org
	public-inbox-index xen-devel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.xenproject.lists.xen-devel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git