Date: Tue, 21 Jul 2015 12:09:42 +0200 From: Svatopluk Kraus <onwahe@gmail.com> To: =?UTF-8?Q?Mika=C3=ABl_Urankar?= <mikael.urankar@gmail.com> Cc: Oleksandr Tymoshenko <gonzo@bluezbox.com>, "freebsd-arm@freebsd.org List" <freebsd-arm@freebsd.org> Subject: Re: WIP: IPU and HDMI drivers for i.MX6 Message-ID: <CAFHCsPXApDmOiFxEpNztJkCWegb7P1k79eXeKu3iGqVZpVdKEg@mail.gmail.com> In-Reply-To: <CAJwjRmT%2BjbkYT43Wo9=MPWD7qK-vGLW3XzROhR2Sdr7JpcG9SA@mail.gmail.com> References: <5569347D-EA8B-46C9-97D3-6BF7CC1952B8@bluezbox.com> <CAJwjRmQFJn89UtLdzgJ28Ys9M-FbqOgVfVnFSJmRgtrVykfK%2Bw@mail.gmail.com> <14BBEBB2-E77E-45BC-89C1-1BE59D0871E6@bluezbox.com> <CAJwjRmT%2BjbkYT43Wo9=MPWD7qK-vGLW3XzROhR2Sdr7JpcG9SA@mail.gmail.com>
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On Tue, Jul 21, 2015 at 10:04 AM, Mika=C3=ABl Urankar <mikael.urankar@gmail.com> wrote: > 2015-07-20 22:43 GMT+02:00 Oleksandr Tymoshenko <gonzo@bluezbox.com>: >> Looks like i4pro has two IPU enabled and my code does not handle >> this case well yet. New patch has hack that make sure only IPU1 is attac= hed. >> >> https://people.freebsd.org/~gonzo/arm/patches/imx6-ipu-hdmi-20150720.dif= f > > It works now: > http://mikael.urankar.free.fr/FreeBSD/cubox_hdmi_20150720.txt > > I have these warnings in the console when I shutdown X: > WARNING: A device driver has set "memattr" inconsistently When I played with gonzo's BBB wip patches some time ago, I got same messages. My proof-of-concept hack was to return correct memory attribute of frame buffer (it was VM_MEMATTR_UNCACHEABLE) thru argument passed to fb_mmap() in sys/dev/fb/fbd.c file. --- a/sys/dev/fb/fbd.c +++ b/sys/dev/fb/fbd.c @@ -173,6 +173,8 @@ fb_mmap(struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr, int nprot, if (info->fb_flags & FB_FLAG_NOMMAP) return (ENODEV); +*memattr =3D VM_MEMATTR_UNCACHEABLE; + if (offset >=3D 0 && offset < info->fb_size) { if (info->fb_pbase =3D=3D 0) *paddr =3D vtophys((uint8_t *)info->fb_vbase + offs= et); Svata
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