m not from Loongson, just some user trying to
> mess around it.
There are some purposed "workarounds" like reducing the link speed (from
x16 to x8), tweaking the power management setting, etc. Someone even
claims improving the heat sink of the LS7A chip can help to work around
thi
a" from gtk3-demo (which just renders a triangle with GL)
under Xorg, on MIPS64. See the BugLink.
> Christian.
>
> >
> > BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1549
> > Fixes: a39f2a8d7066 ("drm/amdgpu: nuke amdgpu_vm_bo_split_mapping v2")
&g
-/issues/1549
> > > > Fixes: a39f2a8d7066 ("drm/amdgpu: nuke amdgpu_vm_bo_split_mapping v2")
> > > > Reported-by: Xi Ruoyao
> > > > Reported-by: Dan Horák
> > > > Cc: sta...@vger.kernel.org
> > > > Signed-off-by: Xi Ruoyao
> > > &
On 2021-03-30 02:21 +0800, Xi Ruoyao wrote:
> On 2021-03-29 20:10 +0200, Christian König wrote:
> > You need to identify the root cause of this, most likely start or last
> > are not a multiple of AMDGPU_GPU_PAGES_IN_CPU_PAGE.
>
> I printk'ed the value of start & la
->last - mapping->start + 1) %
AMDGPU_GPU_PAGES_IN_CPU_PAGE == 0, then we should replace "AMDGPU_GPU_PAGE_MASK"
in "validate the parameters" with "PAGE_MASK".
I tried it and it broke userspace: Xorg startup fails with EINVAL with this
change.
On 2021-03-30 02
On 2021-03-29 21:36 +0200, Christian König wrote:
> Am 29.03.21 um 21:27 schrieb Xi Ruoyao:
> > Hi Christian,
> >
> > I don't think there is any constraint implemented to ensure `num_entries %
> > AMDGPU_GPU_PAGES_IN_CPU_PAGE == 0`. F
On 2021-03-30 21:02 +0800, Xi Ruoyao wrote:
> On 2021-03-30 14:55 +0200, Christian König wrote:
> >
> > I rather see this as a kernel bug. Can you test if this code fragment
> > fixes your issue:
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
On 2021-03-30 03:40 +0800, Xi Ruoyao wrote:
> On 2021-03-29 21:36 +0200, Christian König wrote:
> > Am 29.03.21 um 21:27 schrieb Xi Ruoyao:
> > > Hi Christian,
> > >
> > > I don't think there is any constraint implemented to ensure `num_entries %
>
On 2021-03-30 14:55 +0200, Christian König wrote:
> Am 30.03.21 um 14:04 schrieb Xi Ruoyao:
> > On 2021-03-30 03:40 +0800, Xi Ruoyao wrote:
> > > On 2021-03-29 21:36 +0200, Christian König wrote:
> > > > Am 29.03.21 um 21:27 schrieb Xi Ruoyao:
> > > > &g
On 2021-03-30 15:24 +0200, Christian König wrote:
> Am 30.03.21 um 15:23 schrieb Dan Horák:
> > On Tue, 30 Mar 2021 21:09:12 +0800
> > Xi Ruoyao wrote:
> >
> > > On 2021-03-30 21:02 +0800, Xi Ruoyao wrote:
> > > > On 2021-03-30 14:55 +0200, Christian Kön
r_division_u64() ->
> div64_u64_rem()
>
> Shouldn't callers of division functions harden them against dividing by
> zero?
Yes I think it'd be the correct solution.
--
Xi Ruoyao
School of Aerospace Science and Technology, Xidian University
11 matches
Mail list logo
