Re: linux-next: manual merge of the drm tree with Linus' tree

Stephen Rothwell
2021-03-30T23:42:44Z

Hi Geert,

On Tue, 30 Mar 2021 09:36:57 +0200 Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>
> On Mon, Mar 29, 2021 at 4:16 AM Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> > Today's linux-next merge of the drm tree got a conflict in:
> >
> > drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> >
> > between commits:
> >
> > 9adb125dde69 ("drm/amdgpu: re-enable suspend phase 2 for S0ix")
> > 4021229e32bd ("drm/amdgpu/swsmu: skip gfx cgpg on s0ix suspend")
> > 9bb735abcbd8 ("drm/amdgpu: update comments about s0ix suspend/resume")
> >
> > from Linus' tree and commit:
> >
> > e3c1b0712fdb ("drm/amdgpu: Reset the devices in the XGMI hive duirng probe")
> >
> > from the drm tree.
> >
> > I fixed it up (I think - see below) and can carry the fix as necessary.
> > This is now fixed as far as linux-next is concerned, but any non trivial
> > conflicts should be mentioned to your upstream maintainer when your tree
> > is submitted for merging. You may also want to consider cooperating
> > with the maintainer of the conflicting tree to minimise any particularly
> > complex conflicts.
> >
> > --
> > Cheers,
> > Stephen Rothwell
> >
> > diff --cc drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> > index 8a5a8ff5d362,0f82c5d21237..000000000000
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> > @@@ -2743,16 -2712,15 +2720,25 @@@ static int amdgpu_device_ip_suspend_pha
> > continue;
> > }
> >
> > + /* skip suspend of gfx and psp for S0ix
> > + * gfx is in gfxoff state, so on resume it will exit gfxoff just
> > + * like at runtime. PSP is also part of the always on hardware
> > + * so no need to suspend it.
> > + */
> > + if (adev->in_s0ix &&
> > + (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP ||
> > + adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GFX))
> > + continue;
> > +
> > + /* skip unnecessary suspend if we do not initialize them yet */
> > + if (adev->gmc.xgmi.pending_reset &&
> > + !(adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC ||
> > + adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC ||
> > + adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
> > + adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH)) {
> > + adev->ip_blocks[i].status.hw = false;
> > + continue;
> > + }
> > /* XXX handle errors */
> > r = adev->ip_blocks[i].version->funcs->suspend(adev);
> > /* XXX handle errors */
>
> The above is not what you have in next-20210329?
> Your tree has a second copy of the first conflict block after the second:
>
> /* skip suspend of gfx and psp for S0ix
> [...]
> /* skip unnecessary suspend if we do not initialize them yet */
> [...]
> /* skip suspend of gfx and psp for S0ix
>

It happened because those commits in Linus' tree are also (as different
commits) in the amdgpu tree and so git happily did a new merge
resolution and ended up with what you see :-( I'll see if I can fix it
up for today.

--
Cheers,
Stephen Rothwell