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Message-ID: <hc9jyi.nq7c1w.1hge0yx-qmf@mail.kapsi.fi> Date: Fri, 19 Jun 2015 17:17:54 +0000 From: mikko.rapeli@....fi To: daniel@...ll.ch Cc: imre.deak@...el.com, intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org, daniel.vetter@...el.com, jani.nikula@...ux.intel.com, linux-kernel@...r.kernel.org Subject: Re: [PATCH] drm/i915: enable BIOS hang workaround for Lenovo T60 too On Fri Jun 19 17:44:31 2015 GMT+0200, Daniel Vetter wrote: > On Fri, Jun 19, 2015 at 08:17:55AM +0200, Mikko Rapeli wrote: > > When trying to hibernate a Lenovo T60 the half moon led keeps blinking and > > devices does not power off since commit da2bc1b9db3. > > > > T60 chip details: > > > > 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GM > > L Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller]) > > Subsystem: Lenovo ThinkPad R60/T60/X60 series > > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step > > ping- SERR- FastB2B- DisINTx- > > Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- > > <MAbort- >SERR- <PERR- INTx- > > Latency: 0 > > Interrupt: pin A routed to IRQ 16 > > Region 0: Memory at ee100000 (32-bit, non-prefetchable) [size=512K] > > Region 1: I/O ports at 1800 [size=8] > > Region 2: Memory at d0000000 (32-bit, prefetchable) [size=256M] > > Region 3: Memory at ee200000 (32-bit, non-prefetchable) [size=256K] > > Expansion ROM at <unassigned> [disabled] > > Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit- > > Address: 00000000 Data: 0000 > > Capabilities: [d0] Power Management version 2 > > Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > > Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- > > Kernel driver in use: i915 > > > > Signed-off-by: Mikko Rapeli <mikko.rapeli@....fi> > > --- > > drivers/gpu/drm/i915/i915_drv.c | 5 +++-- > > 1 file changed, 3 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c > > index ec4d932..36e311e 100644 > > --- a/drivers/gpu/drm/i915/i915_drv.c > > +++ b/drivers/gpu/drm/i915/i915_drv.c > > @@ -641,11 +641,12 @@ static int i915_drm_suspend_late(struct drm_device *drm_dev, bool hibernation) > > * the device even though it's already in D3 and hang the machine. So > > * leave the device in D0 on those platforms and hope the BIOS will > > * power down the device properly. Platforms where this was seen: > > - * Lenovo Thinkpad X301, X61s > > + * Lenovo Thinkpad X301, X61s, T60 > > */ > > if (!(hibernation && > > drm_dev->pdev->subsystem_vendor == PCI_VENDOR_ID_LENOVO && > > - INTEL_INFO(dev_priv)->gen == 4)) > > + ((INTEL_INFO(dev_priv)->gen == 3) || > > + (INTEL_INFO(dev_priv)->gen == 4))) > > I wonder whether we shouldn't do this unconditionally for gen4 and earlier > for Lenovo ... Anyway this needs Cc: stable@...r.kernel.org and is for > Jani to pick up. Yes, I also tought about enabling this for all older Lenovo devices but I don't know the hardware or chips and can't test so I let it be. Also reverting the original bug causing patch could be an option since this is affecting so many devices and users. > Thanks for figuring out what's been broken here. You're welcome. -Mikko > -Daniel > > > pci_set_power_state(drm_dev->pdev, PCI_D3hot); > > > > return 0; > > -- > > 2.1.4 > > > > _______________________________________________ > > dri-devel mailing list > > dri-devel@...ts.freedesktop.org > > http://lists.freedesktop.org/mailman/listinfo/dri-devel > > -- > Daniel Vetter > Software Engineer, Intel Corporation > http://blog.ffwll.ch > -- Sent from my Jolla
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