lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Mon, 17 Feb 2020 10:30:01 +0100 From: Daniel Vetter <daniel@...ll.ch> To: Paul Cercueil <paul@...pouillou.net> Cc: David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>, od@...c.me, dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH 2/3] gpu/drm: ingenic: Switch emulated fbdev to 16bpp On Sun, Feb 16, 2020 at 12:58:10PM -0300, Paul Cercueil wrote: > The fbdev emulation is only ever used on Ingenic SoCs to run old SDL1 > based games at 16bpp (rgb565). Recent applications generally talk to > DRM directly, and can request their favourite pixel format; so we can > make everybody happy by switching the emulated fbdev to 16bpp. > > Signed-off-by: Paul Cercueil <paul@...pouillou.net> > --- > drivers/gpu/drm/ingenic/ingenic-drm.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/ingenic/ingenic-drm.c b/drivers/gpu/drm/ingenic/ingenic-drm.c > index 034961a40e98..9aa88fabbd2a 100644 > --- a/drivers/gpu/drm/ingenic/ingenic-drm.c > +++ b/drivers/gpu/drm/ingenic/ingenic-drm.c > @@ -808,7 +808,7 @@ static int ingenic_drm_probe(struct platform_device *pdev) > goto err_devclk_disable; > } > > - ret = drm_fbdev_generic_setup(drm, 32); > + ret = drm_fbdev_generic_setup(drm, 16); If you're really bored, could we make everyone even more happy by exposing format switching in the drm fbdev emulation? Only for the drivers which have a full format list on the primary plane (gets too tricky otherwise). And obviously only formats that have lower bpp than the one we booted with (can't reallocate the framebuffer because fbdev). Just as an idea, this shouldn't be too horrible amounts of work to wire up. But ofc more than this oneliner :-) Cheers, Daniel > if (ret) > dev_warn(dev, "Unable to start fbdev emulation: %i", ret); > > -- > 2.25.0 > -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch
Powered by blists - more mailing lists