Re: [Bug] virtio-gpu broken with qemu/kvm on arm64 on kernel 5.5+

2020-02-26 Thread Gerd Hoffmann
Hi, > > ... into 5.6-rc3 fixes the corruption for me. > > I tried those 2 patches on top of kernel 5.6-rc3 and they indeed fix the > problem. > > I applied them on top of 5.5.6 and they also fix the problem! > Could we get those 2 patches applied to stable 5.5, please? Series just re-posted.

RE: [Bug] virtio-gpu broken with qemu/kvm on arm64 on kernel 5.5+

2020-02-26 Thread Guillaume Gardet
Hi, > -Original Message- > From: Gerd Hoffmann > Sent: 26 February 2020 07:46 > To: Guillaume Gardet > Cc: Gurchetan Singh ; dri- > de...@lists.freedesktop.org; Daniel Vetter ; Catalin > Marinas ; nd ; Chia-I Wu > > Subject: Re: [Bug] virtio-gpu broken with

Re: [Bug] virtio-gpu broken with qemu/kvm on arm64 on kernel 5.5+

2020-02-25 Thread Gerd Hoffmann
Hi, > > Perhaps try the entire series? > > > > https://patchwork.kernel.org/cover/11300619/ Latest version is at: https://git.kraxel.org/cgit/linux/log/?h=drm-virtio-no-wc > Applied entire series on top of 5.5.6, but still the same problem. Can you double-check? Cherry-picking the shmem

RE: [Bug] virtio-gpu broken with qemu/kvm on arm64 on kernel 5.5+

2020-02-24 Thread Guillaume Gardet
> -Original Message- > From: Gurchetan Singh > Sent: 22 February 2020 01:47 > To: Guillaume Gardet > Cc: dri-devel@lists.freedesktop.org; Gerd Hoffmann ; > Daniel Vetter ; Catalin Marinas > ; nd ; Chia-I Wu > > Subject: Re: [Bug] virtio-gpu broken with qemu

Re: [Bug] virtio-gpu broken with qemu/kvm on arm64 on kernel 5.5+

2020-02-21 Thread Gurchetan Singh
illaume Gardet > > > Cc: dri-devel@lists.freedesktop.org; Gerd Hoffmann ; > > > Daniel Vetter ; Catalin Marinas > > > ; nd > > > Subject: Re: [Bug] virtio-gpu broken with qemu/kvm on arm64 on kernel 5.5+ > > > > > > On Thu, Feb 20, 2020 at 4:44 A

Re: [Bug] virtio-gpu broken with qemu/kvm on arm64 on kernel 5.5+

2020-02-21 Thread Chia-I Wu
r ; Catalin Marinas > > ; nd > > Subject: Re: [Bug] virtio-gpu broken with qemu/kvm on arm64 on kernel 5.5+ > > > > On Thu, Feb 20, 2020 at 4:44 AM Guillaume Gardet > > wrote: > > > > > > Hi, > > > > > > With (guest) kernel

[Bug] virtio-gpu broken with qemu/kvm on arm64 on kernel 5.5+

2020-02-21 Thread Guillaume Gardet
Hi, With (guest) kernel 5.5+ with qemu/kvm on arm64, I get lots of display corruptions leading to this kind of screen: https://openqa.opensuse.org/tests/1174521#step/yast2_i/24 I git bisected it to commit c66df701e783bc666593e6e665f13670760883ee ** drm/virtio: switch from ttm to gem shme

RE: [Bug] virtio-gpu broken with qemu/kvm on arm64 on kernel 5.5+

2020-02-21 Thread Guillaume Gardet
Hi, > -Original Message- > From: Chia-I Wu > Sent: 20 February 2020 19:41 > To: Guillaume Gardet > Cc: dri-devel@lists.freedesktop.org; Gerd Hoffmann ; > Daniel Vetter ; Catalin Marinas > ; nd > Subject: Re: [Bug] virtio-gpu broken with qemu/kvm on arm64 on kern

Re: [Bug] virtio-gpu broken with qemu/kvm on arm64 on kernel 5.5+

2020-02-20 Thread Chia-I Wu
On Thu, Feb 20, 2020 at 4:44 AM Guillaume Gardet wrote: > > Hi, > > With (guest) kernel 5.5+ with qemu/kvm on arm64, I get lots of display > corruptions leading to this kind of screen: > https://openqa.opensuse.org/tests/1174521#step/yast2_i/24 Looking at the screenshot, it seems cacheline-relate