On 2015/10/5 18:03, Joerg Roedel wrote:
> Hi Jiang,
>
> On Sat, Oct 03, 2015 at 03:36:35PM +0800, Jiang Liu wrote:
>> So to summary, I think we only need following change to fix the
>> regression:
>> int pcibios_alloc_irq(struct pci_dev *dev)
>> {
&g
On 2015/10/1 1:36, Borislav Petkov wrote:
> On Thu, Oct 01, 2015 at 01:00:44AM +0800, Jiang Liu wrote:
>> Thanks Joerg, that makes sense. If some driver tries to binding to
>> the IOMMU device, it will trigger the scenario as you described. For
>> example, Xen backend dri
On 2015/9/30 20:44, Joerg Roedel wrote:
> On Wed, Sep 30, 2015 at 03:45:39PM +0800, Jiang Liu wrote:
>> So we need to figure out why we got irq number 0 after enabling
>> MSI for AMD IOMMU device. The only hint I got is that iommu driver just
>> grabbing the PCI device wi
n 2015/9/29 18:51, Borislav Petkov wrote:
> On Tue, Sep 29, 2015 at 04:50:36PM +0800, Jiang Liu wrote:
>> So could you please help to apply the attached debug patch to gather
>> more information about the regression?
>
> Sure, just did.
>
> I'm sending you a fu
r deref f*cking up the box much earlier. Once I reverted
> the bad commit by hand (it wouldn't revert cleanly) the resume splats
> showed.
>
> And in talking about the bad commit, it is this one:
>
> 991de2e59090e55c65a7f59a049142e3c480f7bd is the first bad commit
> commit 991d
Thanks, Rafael.
Will cc ACPI maillist next time.
On 2014/2/21 4:27, Rafael J. Wysocki wrote:
> On 2/20/2014 10:23 AM, Jiang Liu wrote:
>> Fix regression caused by commit b072e53, which breaks loading nouveau
>> driver on optimus laptops.
>>
>> On some
implementation
to check availability of _DSM functions instead of using common
acpi_check_dsm() interface.
Reported-and-Tested-by: Maarten Lankhorst
Signed-off-by: Jiang Liu
---
drivers/gpu/drm/nouveau/nouveau_acpi.c | 26 --
1 file changed, 24 insertions(+), 2 deletions(-)
diff
On 2014/2/19 18:12, Maarten Lankhorst wrote:
> op 19-02-14 05:53, Jiang Liu schreef:
>> On some platforms, ACPI _DSM method (nouveau_op_dsm_muid, function 0)
>> has special requirements on the fourth parameter, which is different
>> from ACPI specifications. So
(nouveau_optimus_dsm(handle, 0, 0, &result)
+ if (nouveau_optimus_dsm(handle, 0, 0, &result))
return 0;
On 2014/2/19 12:53, Jiang Liu wrote:
> On some platforms, ACPI _DSM method (nouveau_op_dsm_muid, function 0)
> has special requirements on the fourth parameter, whic
.
Signed-off-by: Jiang Liu
---
Hi Maarten,
Thanks for bisecting. Could you please help to verify whether
this patch fixes the regression?
Thanks!
Gerry
---
drivers/gpu/drm/nouveau/nouveau_acpi.c | 26 --
1 file changed, 24 insertions(+), 2 deletions(-)
diff --git
Use helper functions to simplify _DSM related code in nouveau driver.
After analyzing the ACPI _DSM related code, I changed nouveau_optimus_dsm()
to expect a buffer and nouveau_dsm() to expect an integer only.
Signed-off-by: Jiang Liu
---
drivers/gpu/drm/nouveau/core/subdev/mxm/base.c | 48
Fix memory leak in function nouveau_optimus_dsm() and nouveau_dsm().
Signed-off-by: Jiang Liu
---
drivers/gpu/drm/nouveau/nouveau_acpi.c |5 -
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c
b/drivers/gpu/drm/nouveau/nouveau_acpi.c
useless for i915 driver, so remove it.
Acked-by: Daniel Vetter
Signed-off-by: Jiang Liu
---
drivers/gpu/drm/i915/intel_acpi.c | 144 -
1 file changed, 30 insertions(+), 114 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_acpi.c
b/drivers/gpu/drm/i915
Use helper functions to simplify _DSM related code in nouveau driver.
After analyzing the ACPI _DSM related code, I changed nouveau_optimus_dsm()
to expect a buffer and nouveau_dsm() to expect an integer only.
Signed-off-by: Jiang Liu
---
drivers/gpu/drm/nouveau/core/subdev/mxm/base.c | 48
Fix memory leak in function nouveau_optimus_dsm() and nouveau_dsm().
Signed-off-by: Jiang Liu
---
drivers/gpu/drm/nouveau/nouveau_acpi.c |5 -
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c
b/drivers/gpu/drm/nouveau/nouveau_acpi.c
useless for i915 driver, so remove it.
Signed-off-by: Jiang Liu
---
drivers/gpu/drm/i915/intel_acpi.c | 144 -
1 file changed, 30 insertions(+), 114 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_acpi.c
b/drivers/gpu/drm/i915/intel_acpi.c
index dfff090
Enhance DRM drvier to use hotplug-safe iterators to walk PCI buses.
Signed-off-by: Jiang Liu
Cc: David Airlie
Cc: dri-devel at lists.freedesktop.org
Cc: linux-kernel at vger.kernel.org
---
drivers/gpu/drm/drm_fops.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a
Enhance DRM drvier to use hotplug-safe iterators to walk PCI buses.
Signed-off-by: Jiang Liu
Cc: David Airlie
Cc: dri-devel@lists.freedesktop.org
Cc: linux-ker...@vger.kernel.org
---
drivers/gpu/drm/drm_fops.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers
Enhance DRM drvier to use hotplug-safe iterators to walk PCI buses.
Signed-off-by: Jiang Liu
Cc: David Airlie
Cc: dri-devel at lists.freedesktop.org
Cc: linux-kernel at vger.kernel.org
---
drivers/gpu/drm/drm_fops.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a
Enhance DRM drvier to use hotplug-safe iterators to walk PCI buses.
Signed-off-by: Jiang Liu
Cc: David Airlie
Cc: dri-devel@lists.freedesktop.org
Cc: linux-ker...@vger.kernel.org
---
drivers/gpu/drm/drm_fops.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers
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