From: Stefan Christ <s.christ@phytec.de>
To: p.zabel@pengutronix.de, dri-devel@lists.freedesktop.org
Subject: [PATCH 3/3] drm/imx: ipuv3-crtc: implement fast path mode_set_base
Date: Wed, 13 Jul 2016 10:11:48 +0200 [thread overview]
Message-ID: <1468397508-5112-4-git-send-email-s.christ@phytec.de> (raw)
In-Reply-To: <1468397508-5112-1-git-send-email-s.christ@phytec.de>
Implementing the function "mode_set_base" for i.MX6 IPU enables the
fast-path in function drm_crtc_helper_set_config. The fast-path is used
when flag 'mode_changed' is false and flag 'fb_changed' is true.
The fast-patch is needed for applications using the legcay framebuffer
ioctl FBIOPAN_DISPLAY for buffer flipping. When the fast-patch is not
present, the ioctl FBIOPAN_DISPLAY causes a complete mode set which is
too interruptive.
Signed-off-by: Stefan Christ <s.christ@phytec.de>
---
drivers/gpu/drm/imx/ipuv3-crtc.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/imx/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3-crtc.c
index fc04041..9858a57 100644
--- a/drivers/gpu/drm/imx/ipuv3-crtc.c
+++ b/drivers/gpu/drm/imx/ipuv3-crtc.c
@@ -234,6 +234,15 @@ static const struct drm_crtc_funcs ipu_crtc_funcs = {
.page_flip = ipu_page_flip,
};
+int ipu_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
+ struct drm_framebuffer *old_fb)
+{
+ struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
+ struct ipu_plane *plane = ipu_crtc->plane[0];
+
+ return ipu_plane_set_base(plane, crtc->primary->fb, x, y);
+}
+
static int ipu_crtc_mode_set(struct drm_crtc *crtc,
struct drm_display_mode *orig_mode,
struct drm_display_mode *mode,
@@ -378,6 +387,7 @@ static const struct drm_crtc_helper_funcs ipu_helper_funcs = {
.dpms = ipu_crtc_dpms,
.mode_fixup = ipu_crtc_mode_fixup,
.mode_set = ipu_crtc_mode_set,
+ .mode_set_base = ipu_crtc_mode_set_base,
.prepare = ipu_crtc_prepare,
.commit = ipu_crtc_commit,
};
--
1.9.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
next prev parent reply other threads:[~2016-07-13 8:17 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-13 8:11 [PATCH 0/3] Support fast framebuffer panning for i.MX6 Stefan Christ
2016-07-13 8:11 ` [PATCH 1/3] drm/cma-helper: Add multi buffer support for cma fbdev Stefan Christ
2016-07-13 10:05 ` Daniel Vetter
2016-07-13 8:11 ` [PATCH 2/3] drm: fb_helper: implement ioctl FBIO_WAITFORVSYNC Stefan Christ
2016-07-13 10:16 ` Daniel Vetter
2016-07-15 7:19 ` Daniel Vetter
2016-07-27 9:59 ` Stefan Christ
2016-07-27 13:09 ` Daniel Vetter
2016-07-13 8:11 ` Stefan Christ [this message]
2016-07-13 10:00 ` [PATCH 0/3] Support fast framebuffer panning for i.MX6 Daniel Vetter
2016-07-14 15:11 ` Stefan Christ
2016-07-15 7:14 ` Daniel Vetter
Reply instructions:
You may reply publicly 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=1468397508-5112-4-git-send-email-s.christ@phytec.de \
--to=s.christ@phytec.de \
--cc=dri-devel@lists.freedesktop.org \
--cc=p.zabel@pengutronix.de \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox