[PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Will Deacon]

Edgar Merger reports that the AMD Raven GPU does not work reliably on
his system when the IOMMU is enabled:

  | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=1, emitted seq=3
  | [...]
  | amdgpu 0000:0b:00.0: GPU reset begin!
  | AMD-Vi: Completion-Wait loop timed out
  | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT device=0b:00.0 address=0x38edc0970]

This is indicative of a hardware/platform configuration issue so, since
disabling ATS has been shown to resolve the problem, add a quirk to
match this particular device while Edgar follows-up with AMD for more
information.

Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
Suggested-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/linux-iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10MB1310.namprd10.prod.outlook.com
Signed-off-by: Will Deacon <will@kernel.org>
---

Hi all,

Since Joerg is away at the moment, I'm posting this to try to make some
progress with the thread in the Link: tag.

Cheers,

Will

 drivers/pci/quirks.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index f70692ac79c5..3911b0ec57ba 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5176,6 +5176,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, quirk_amd_harvest_no_ats);
 /* AMD Navi14 dGPU */
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats);
+/* AMD Raven platform iGPU */
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, quirk_amd_harvest_no_ats);
 #endif /* CONFIG_PCI_ATS */
 
 /* Freescale PCIe doesn't support MSI in RC mode */
-- 
2.29.2.454.gaff20da3a2-goog

RE: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Deucher, Alexander]

[AMD Public Use]

> -----Original Message-----
> From: Will Deacon <will@kernel.org>
> Sent: Monday, November 23, 2020 8:44 AM
> To: linux-kernel@vger.kernel.org
> Cc: linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Will
> Deacon <will@kernel.org>; Bjorn Helgaas <bhelgaas@google.com>;
> Deucher, Alexander <Alexander.Deucher@amd.com>; Edgar Merger
> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> 
> Edgar Merger reports that the AMD Raven GPU does not work reliably on his
> system when the IOMMU is enabled:
> 
>   | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout,
> signaled seq=1, emitted seq=3
>   | [...]
>   | amdgpu 0000:0b:00.0: GPU reset begin!
>   | AMD-Vi: Completion-Wait loop timed out
>   | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> device=0b:00.0 address=0x38edc0970]
> 
> This is indicative of a hardware/platform configuration issue so, since
> disabling ATS has been shown to resolve the problem, add a quirk to match
> this particular device while Edgar follows-up with AMD for more information.
> 
> Cc: Bjorn Helgaas <bhelgaas@google.com>
> Cc: Alex Deucher <alexander.deucher@amd.com>
> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> Suggested-by: Joerg Roedel <jroedel@suse.de>
> Link:
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.
> kernel.org%2Flinux-
> iommu%2FMWHPR10MB1310F042A30661D4158520B589FC0%40MWHPR10M
> B1310.namprd10.prod.outlook.com&amp;data=04%7C01%7Calexander.deuc
> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> Signed-off-by: Will Deacon <will@kernel.org>
> ---
> 
> Hi all,
> 
> Since Joerg is away at the moment, I'm posting this to try to make some
> progress with the thread in the Link: tag.

+ Felix

What system is this?  Can you provide more details?  Does a sbios update fix this?  Disabling ATS for all Ravens will break GPU compute for a lot of people.  I'd prefer to just black list this particular system (e.g., just SSIDs or revision) if possible.

Alex

> 
> Cheers,
> 
> Will
> 
>  drivers/pci/quirks.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index
> f70692ac79c5..3911b0ec57ba 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -5176,6 +5176,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI,
> 0x6900, quirk_amd_harvest_no_ats);
> DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312,
> quirk_amd_harvest_no_ats);
>  /* AMD Navi14 dGPU */
>  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340,
> quirk_amd_harvest_no_ats);
> +/* AMD Raven platform iGPU */
> +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8,
> +quirk_amd_harvest_no_ats);
>  #endif /* CONFIG_PCI_ATS */
> 
>  /* Freescale PCIe doesn't support MSI in RC mode */
> --
> 2.29.2.454.gaff20da3a2-goog

Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Will Deacon]

On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander wrote:
> [AMD Public Use]
> 
> > -----Original Message-----
> > From: Will Deacon <will@kernel.org>
> > Sent: Monday, November 23, 2020 8:44 AM
> > To: linux-kernel@vger.kernel.org
> > Cc: linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Will
> > Deacon <will@kernel.org>; Bjorn Helgaas <bhelgaas@google.com>;
> > Deucher, Alexander <Alexander.Deucher@amd.com>; Edgar Merger
> > <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
> > Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > 
> > Edgar Merger reports that the AMD Raven GPU does not work reliably on his
> > system when the IOMMU is enabled:
> > 
> >   | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout,
> > signaled seq=1, emitted seq=3
> >   | [...]
> >   | amdgpu 0000:0b:00.0: GPU reset begin!
> >   | AMD-Vi: Completion-Wait loop timed out
> >   | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> > device=0b:00.0 address=0x38edc0970]
> > 
> > This is indicative of a hardware/platform configuration issue so, since
> > disabling ATS has been shown to resolve the problem, add a quirk to match
> > this particular device while Edgar follows-up with AMD for more information.
> > 
> > Cc: Bjorn Helgaas <bhelgaas@google.com>
> > Cc: Alex Deucher <alexander.deucher@amd.com>
> > Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > Suggested-by: Joerg Roedel <jroedel@suse.de>
> > Link:
> > https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.
> > kernel.org%2Flinux-
> > iommu%2FMWHPR10MB1310F042A30661D4158520B589FC0%40MWHPR10M
> > B1310.namprd10.prod.outlook.com&amp;data=04%7C01%7Calexander.deuc
> > her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > Signed-off-by: Will Deacon <will@kernel.org>
> > ---
> > 
> > Hi all,
> > 
> > Since Joerg is away at the moment, I'm posting this to try to make some
> > progress with the thread in the Link: tag.
> 
> + Felix
> 
> What system is this?  Can you provide more details?  Does a sbios update
> fix this?  Disabling ATS for all Ravens will break GPU compute for a lot
> of people.  I'd prefer to just black list this particular system (e.g.,
> just SSIDs or revision) if possible.

Cheers, Alex. I'll have to defer to Edgar for the details, as my
understanding from the original thread over at:

https://lore.kernel.org/linux-iommu/MWHPR10MB1310CDB6829DDCF5EA84A14689150@MWHPR10MB1310.namprd10.prod.outlook.com/

is that this is a board developed by his company.

Edgar -- please can you answer Alex's questions?

Will

Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Felix Kuehling]

On 2020-11-23 5:33 p.m., Will Deacon wrote:
> On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander wrote:
>> [AMD Public Use]
>>
>>> -----Original Message-----
>>> From: Will Deacon <will@kernel.org>
>>> Sent: Monday, November 23, 2020 8:44 AM
>>> To: linux-kernel@vger.kernel.org
>>> Cc: linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Will
>>> Deacon <will@kernel.org>; Bjorn Helgaas <bhelgaas@google.com>;
>>> Deucher, Alexander <Alexander.Deucher@amd.com>; Edgar Merger
>>> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
>>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
>>>
>>> Edgar Merger reports that the AMD Raven GPU does not work reliably on his
>>> system when the IOMMU is enabled:
>>>
>>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout,
>>> signaled seq=1, emitted seq=3
>>>    | [...]
>>>    | amdgpu 0000:0b:00.0: GPU reset begin!
>>>    | AMD-Vi: Completion-Wait loop timed out
>>>    | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
>>> device=0b:00.0 address=0x38edc0970]
>>>
>>> This is indicative of a hardware/platform configuration issue so, since
>>> disabling ATS has been shown to resolve the problem, add a quirk to match
>>> this particular device while Edgar follows-up with AMD for more information.
>>>
>>> Cc: Bjorn Helgaas <bhelgaas@google.com>
>>> Cc: Alex Deucher <alexander.deucher@amd.com>
>>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
>>> Suggested-by: Joerg Roedel <jroedel@suse.de>
>>> Link:
>>> https://lore.
>>> kernel.org/linux-
>>> iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
>>> B1310.namprd10.prod.outlook.com
>>> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
>>> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
>>> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
>>> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
>>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
>>> Signed-off-by: Will Deacon <will@kernel.org>
>>> ---
>>>
>>> Hi all,
>>>
>>> Since Joerg is away at the moment, I'm posting this to try to make some
>>> progress with the thread in the Link: tag.
>> + Felix
>>
>> What system is this?  Can you provide more details?  Does a sbios update
>> fix this?  Disabling ATS for all Ravens will break GPU compute for a lot
>> of people.  I'd prefer to just black list this particular system (e.g.,
>> just SSIDs or revision) if possible.

+Ray

There are already many systems where the IOMMU is disabled in the BIOS, 
or the CRAT table reporting the APU compute capabilities is broken. Ray 
has been working on a fallback to make APUs behave like dGPUs on such 
systems. That should also cover this case where ATS is blacklisted. That 
said, it affects the programming model, because we don't support the 
unified and coherent memory model on dGPUs like we do on APUs with 
IOMMUv2. So it would be good to make the conditions for this workaround 
as narrow as possible.

These are the relevant changes in KFD and Thunk for reference:

### KFD ###

commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
Author: Huang Rui <ray.huang@amd.com>
Date:   Tue Aug 18 14:54:23 2020 +0800

     drm/amdkfd: implement the dGPU fallback path for apu (v6)

     We still have a few iommu issues which need to address, so force raven
     as "dgpu" path for the moment.

     This is to add the fallback path to bypass IOMMU if IOMMU v2 is 
disabled
     or ACPI CRAT table not correct.

     v2: Use ignore_crat parameter to decide whether it will go with 
IOMMUv2.
     v3: Align with existed thunk, don't change the way of raven, only 
renoir
         will use "dgpu" path by default.
     v4: don't update global ignore_crat in the driver, and revise fallback
         function if CRAT is broken.
     v5: refine acpi crat good but no iommu support case, and rename the
         title.
     v6: fix the issue of dGPU initialized firstly, just modify the report
         value in the node_show().

     Signed-off-by: Huang Rui <ray.huang@amd.com>
     Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
     Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

### Thunk ###

commit e32482fa4b9ca398c8bdc303920abfd672592764
Author: Huang Rui <ray.huang@amd.com>
Date:   Tue Aug 18 18:54:05 2020 +0800

     libhsakmt: remove is_dgpu flag in the hsa_gfxip_table

     Whether use dgpu path will check the props which exposed from kernel.
     We won't need hard code in the ASIC table.

     Signed-off-by: Huang Rui <ray.huang@amd.com>
     Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452

commit 7c60f6d912034aa67ed27b47a29221422423f5cc
Author: Huang Rui <ray.huang@amd.com>
Date:   Thu Jul 30 10:22:23 2020 +0800

     libhsakmt: implement the method that using flag which exposed by 
kfd to configure is_dgpu

     KFD already implemented the fallback path for APU. Thunk will use flag
     which exposed by kfd to configure is_dgpu instead of hardcode before.

     Signed-off-by: Huang Rui <ray.huang@amd.com>
     Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb

Regards,
   Felix


> Cheers, Alex. I'll have to defer to Edgar for the details, as my
> understanding from the original thread over at:
>
> https://lore.kernel.org/linux-iommu/MWHPR10MB1310CDB6829DDCF5EA84A14689150@MWHPR10MB1310.namprd10.prod.outlook.com/
>
> is that this is a board developed by his company.
>
> Edgar -- please can you answer Alex's questions?
>
> Will

Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Huang Rui]

On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander wrote:
> >> [AMD Public Use]
> >>
> >>> -----Original Message-----
> >>> From: Will Deacon <will@kernel.org>
> >>> Sent: Monday, November 23, 2020 8:44 AM
> >>> To: linux-kernel@vger.kernel.org
> >>> Cc: linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Will
> >>> Deacon <will@kernel.org>; Bjorn Helgaas <bhelgaas@google.com>;
> >>> Deucher, Alexander <Alexander.Deucher@amd.com>; Edgar Merger
> >>> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
> >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> >>>
> >>> Edgar Merger reports that the AMD Raven GPU does not work reliably on his
> >>> system when the IOMMU is enabled:
> >>>
> >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout,
> >>> signaled seq=1, emitted seq=3
> >>>    | [...]
> >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> >>>    | AMD-Vi: Completion-Wait loop timed out
> >>>    | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> >>> device=0b:00.0 address=0x38edc0970]
> >>>
> >>> This is indicative of a hardware/platform configuration issue so, since
> >>> disabling ATS has been shown to resolve the problem, add a quirk to match
> >>> this particular device while Edgar follows-up with AMD for more information.
> >>>
> >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> >>> Link:
> >>> https://lore.
> >>> kernel.org/linux-
> >>> iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> >>> B1310.namprd10.prod.outlook.com
> >>> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> >>> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> >>> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> >>> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> >>> Signed-off-by: Will Deacon <will@kernel.org>
> >>> ---
> >>>
> >>> Hi all,
> >>>
> >>> Since Joerg is away at the moment, I'm posting this to try to make some
> >>> progress with the thread in the Link: tag.
> >> + Felix
> >>
> >> What system is this?  Can you provide more details?  Does a sbios update
> >> fix this?  Disabling ATS for all Ravens will break GPU compute for a lot
> >> of people.  I'd prefer to just black list this particular system (e.g.,
> >> just SSIDs or revision) if possible.
> 
> +Ray
> 
> There are already many systems where the IOMMU is disabled in the BIOS, 
> or the CRAT table reporting the APU compute capabilities is broken. Ray 
> has been working on a fallback to make APUs behave like dGPUs on such 
> systems. That should also cover this case where ATS is blacklisted. That 
> said, it affects the programming model, because we don't support the 
> unified and coherent memory model on dGPUs like we do on APUs with 
> IOMMUv2. So it would be good to make the conditions for this workaround 
> as narrow as possible.

Yes, besides the comments from Alex and Felix, may we get your firmware
version (SMC firmware which is from SBIOS) and device id?

> >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout,
> >>> signaled seq=1, emitted seq=3

It looks only gfx ib test passed, and fails to lanuch desktop, am I right?

We would like to see whether it is Raven, Raven kicker (new Raven), or
Picasso. In our side, per the internal test result, we didn't see the
similiar issue on Raven kicker and Picasso platform.

Thanks,
Ray

> 
> These are the relevant changes in KFD and Thunk for reference:
> 
> ### KFD ###
> 
> commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> Author: Huang Rui <ray.huang@amd.com>
> Date:   Tue Aug 18 14:54:23 2020 +0800
> 
>      drm/amdkfd: implement the dGPU fallback path for apu (v6)
> 
>      We still have a few iommu issues which need to address, so force raven
>      as "dgpu" path for the moment.
> 
>      This is to add the fallback path to bypass IOMMU if IOMMU v2 is 
> disabled
>      or ACPI CRAT table not correct.
> 
>      v2: Use ignore_crat parameter to decide whether it will go with 
> IOMMUv2.
>      v3: Align with existed thunk, don't change the way of raven, only 
> renoir
>          will use "dgpu" path by default.
>      v4: don't update global ignore_crat in the driver, and revise fallback
>          function if CRAT is broken.
>      v5: refine acpi crat good but no iommu support case, and rename the
>          title.
>      v6: fix the issue of dGPU initialized firstly, just modify the report
>          value in the node_show().
> 
>      Signed-off-by: Huang Rui <ray.huang@amd.com>
>      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
>      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> 
> ### Thunk ###
> 
> commit e32482fa4b9ca398c8bdc303920abfd672592764
> Author: Huang Rui <ray.huang@amd.com>
> Date:   Tue Aug 18 18:54:05 2020 +0800
> 
>      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> 
>      Whether use dgpu path will check the props which exposed from kernel.
>      We won't need hard code in the ASIC table.
> 
>      Signed-off-by: Huang Rui <ray.huang@amd.com>
>      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> 
> commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> Author: Huang Rui <ray.huang@amd.com>
> Date:   Thu Jul 30 10:22:23 2020 +0800
> 
>      libhsakmt: implement the method that using flag which exposed by 
> kfd to configure is_dgpu
> 
>      KFD already implemented the fallback path for APU. Thunk will use flag
>      which exposed by kfd to configure is_dgpu instead of hardcode before.
> 
>      Signed-off-by: Huang Rui <ray.huang@amd.com>
>      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> 
> Regards,
>    Felix
> 
> 
> > Cheers, Alex. I'll have to defer to Edgar for the details, as my
> > understanding from the original thread over at:
> >
> > https://lore.kernel.org/linux-iommu/MWHPR10MB1310CDB6829DDCF5EA84A14689150@MWHPR10MB1310.namprd10.prod.outlook.com/
> >
> > is that this is a board developed by his company.
> >
> > Edgar -- please can you answer Alex's questions?
> >
> > Will

RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Merger, Edgar [AUTOSOL/MAS/AUGS]]

Module Version : PiccasoCpu 10 
AGESA Version   : PiccasoPI 100A

I did not try to enter the system in any other way (like via ssh) than via Desktop.

-----Original Message-----
From: Huang Rui <ray.huang@amd.com> 
Sent: Dienstag, 24. November 2020 07:43
To: Kuehling, Felix <Felix.Kuehling@amd.com>
Cc: Will Deacon <will@kernel.org>; Deucher, Alexander <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas <bhelgaas@google.com>; Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>; Changfeng Zhu <changfeng.zhu@amd.com>
Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander wrote:
> >> [AMD Public Use]
> >>
> >>> -----Original Message-----
> >>> From: Will Deacon <will@kernel.org>
> >>> Sent: Monday, November 23, 2020 8:44 AM
> >>> To: linux-kernel@vger.kernel.org
> >>> Cc: linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> >>> Will Deacon <will@kernel.org>; Bjorn Helgaas 
> >>> <bhelgaas@google.com>; Deucher, Alexander 
> >>> <Alexander.Deucher@amd.com>; Edgar Merger 
> >>> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
> >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> >>>
> >>> Edgar Merger reports that the AMD Raven GPU does not work reliably 
> >>> on his system when the IOMMU is enabled:
> >>>
> >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, 
> >>> signaled seq=1, emitted seq=3
> >>>    | [...]
> >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> >>>    | AMD-Vi: Completion-Wait loop timed out
> >>>    | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> >>> device=0b:00.0 address=0x38edc0970]
> >>>
> >>> This is indicative of a hardware/platform configuration issue so, 
> >>> since disabling ATS has been shown to resolve the problem, add a 
> >>> quirk to match this particular device while Edgar follows-up with AMD for more information.
> >>>
> >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> >>> Link:
> >>> https://urldefense.proofpoint.com/v2/url?u=https-3A__lore&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP13_P6LVp7j_9l1xmg&m=lNXu2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=_5VDNCRQdA7AhsvvZ3TJJtQZ2iBp9c9tFHIleTYT_ZM&e= .
> >>> kernel.org/linux-
> >>> iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> >>> B1310.namprd10.prod.outlook.com
> >>> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> >>> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> >>> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> >>> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> >>> Signed-off-by: Will Deacon <will@kernel.org>
> >>> ---
> >>>
> >>> Hi all,
> >>>
> >>> Since Joerg is away at the moment, I'm posting this to try to make 
> >>> some progress with the thread in the Link: tag.
> >> + Felix
> >>
> >> What system is this?  Can you provide more details?  Does a sbios 
> >> update fix this?  Disabling ATS for all Ravens will break GPU 
> >> compute for a lot of people.  I'd prefer to just black list this 
> >> particular system (e.g., just SSIDs or revision) if possible.
> 
> +Ray
> 
> There are already many systems where the IOMMU is disabled in the 
> BIOS, or the CRAT table reporting the APU compute capabilities is 
> broken. Ray has been working on a fallback to make APUs behave like 
> dGPUs on such systems. That should also cover this case where ATS is 
> blacklisted. That said, it affects the programming model, because we 
> don't support the unified and coherent memory model on dGPUs like we 
> do on APUs with IOMMUv2. So it would be good to make the conditions 
> for this workaround as narrow as possible.

Yes, besides the comments from Alex and Felix, may we get your firmware version (SMC firmware which is from SBIOS) and device id?

> >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, 
> >>> signaled seq=1, emitted seq=3

It looks only gfx ib test passed, and fails to lanuch desktop, am I right?

We would like to see whether it is Raven, Raven kicker (new Raven), or Picasso. In our side, per the internal test result, we didn't see the similiar issue on Raven kicker and Picasso platform.

Thanks,
Ray

> 
> These are the relevant changes in KFD and Thunk for reference:
> 
> ### KFD ###
> 
> commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> Author: Huang Rui <ray.huang@amd.com>
> Date:   Tue Aug 18 14:54:23 2020 +0800
> 
>      drm/amdkfd: implement the dGPU fallback path for apu (v6)
> 
>      We still have a few iommu issues which need to address, so force 
> raven
>      as "dgpu" path for the moment.
> 
>      This is to add the fallback path to bypass IOMMU if IOMMU v2 is 
> disabled
>      or ACPI CRAT table not correct.
> 
>      v2: Use ignore_crat parameter to decide whether it will go with 
> IOMMUv2.
>      v3: Align with existed thunk, don't change the way of raven, only 
> renoir
>          will use "dgpu" path by default.
>      v4: don't update global ignore_crat in the driver, and revise 
> fallback
>          function if CRAT is broken.
>      v5: refine acpi crat good but no iommu support case, and rename 
> the
>          title.
>      v6: fix the issue of dGPU initialized firstly, just modify the 
> report
>          value in the node_show().
> 
>      Signed-off-by: Huang Rui <ray.huang@amd.com>
>      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
>      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> 
> ### Thunk ###
> 
> commit e32482fa4b9ca398c8bdc303920abfd672592764
> Author: Huang Rui <ray.huang@amd.com>
> Date:   Tue Aug 18 18:54:05 2020 +0800
> 
>      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> 
>      Whether use dgpu path will check the props which exposed from kernel.
>      We won't need hard code in the ASIC table.
> 
>      Signed-off-by: Huang Rui <ray.huang@amd.com>
>      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> 
> commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> Author: Huang Rui <ray.huang@amd.com>
> Date:   Thu Jul 30 10:22:23 2020 +0800
> 
>      libhsakmt: implement the method that using flag which exposed by 
> kfd to configure is_dgpu
> 
>      KFD already implemented the fallback path for APU. Thunk will use 
> flag
>      which exposed by kfd to configure is_dgpu instead of hardcode before.
> 
>      Signed-off-by: Huang Rui <ray.huang@amd.com>
>      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> 
> Regards,
>    Felix
> 
> 
> > Cheers, Alex. I'll have to defer to Edgar for the details, as my 
> > understanding from the original thread over at:
> >
> > https://urldefense.proofpoint.com/v2/url?u=https-3A__lore.kernel.org
> > _linux-2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-40MWHPR10MB131
> > 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3YJGoxo
> > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP13_P6LVp7j_9l1xmg&m=lNXu
> > 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU60y21
> > ijWZmZ8xmOK1cO_O0&e=
> >
> > is that this is a board developed by his company.
> >
> > Edgar -- please can you answer Alex's questions?
> >
> > Will

RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Deucher, Alexander]

[AMD Public Use]

> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>
> Sent: Tuesday, November 24, 2020 2:29 AM
> To: Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix
> <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; Deucher, Alexander
> <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux-
> pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas
> <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng
> <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> broken
> 
> Module Version : PiccasoCpu 10
> AGESA Version   : PiccasoPI 100A
> 
> I did not try to enter the system in any other way (like via ssh) than via
> Desktop.

You can get this information from the amdgpu driver.  E.g., sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info .  Also what is the PCI revision id of your chip (from lspci)?  Also are you just seeing this on specific versions of the sbios?

Thanks,

Alex


> 
> -----Original Message-----
> From: Huang Rui <ray.huang@amd.com>
> Sent: Dienstag, 24. November 2020 07:43
> To: Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; Deucher, Alexander
> <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux-
> pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas
> <bhelgaas@google.com>; Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>;
> Changfeng Zhu <changfeng.zhu@amd.com>
> Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> 
> On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> > On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander wrote:
> > >> [AMD Public Use]
> > >>
> > >>> -----Original Message-----
> > >>> From: Will Deacon <will@kernel.org>
> > >>> Sent: Monday, November 23, 2020 8:44 AM
> > >>> To: linux-kernel@vger.kernel.org
> > >>> Cc: linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org;
> > >>> Will Deacon <will@kernel.org>; Bjorn Helgaas
> > >>> <bhelgaas@google.com>; Deucher, Alexander
> > >>> <Alexander.Deucher@amd.com>; Edgar Merger
> > >>> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
> > >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > >>>
> > >>> Edgar Merger reports that the AMD Raven GPU does not work reliably
> > >>> on his system when the IOMMU is enabled:
> > >>>
> > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout,
> > >>> signaled seq=1, emitted seq=3
> > >>>    | [...]
> > >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> > >>>    | AMD-Vi: Completion-Wait loop timed out
> > >>>    | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> > >>> device=0b:00.0 address=0x38edc0970]
> > >>>
> > >>> This is indicative of a hardware/platform configuration issue so,
> > >>> since disabling ATS has been shown to resolve the problem, add a
> > >>> quirk to match this particular device while Edgar follows-up with AMD
> for more information.
> > >>>
> > >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> > >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> > >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> > >>> Link:
> > >>>
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Furld
> efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__lore%26d%3DDwIDAw%26c%3DjOURTkCZzT8tVB5xPEYIm3YJGoxoTaQs
> QPzPKJGaWbo%26r%3DBJxhacqqa4K1PJGm6_-
> 862rdSP13_P6LVp7j_9l1xmg%26m%3DlNXu2xwvyxEZ3PzoVmXMBXXS55jsmf
> DicuQFJqkIOH4%26s%3D_5VDNCRQdA7AhsvvZ3TJJtQZ2iBp9c9tFHIleTYT_ZM
> %26e%3D&amp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5f
> a241f9634692c03908d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7
> C0%7C0%7C637417997272974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi
> MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C100
> 0&amp;sdata=OEgYlw%2F1YP0C%2FnWBRQUxwBH56mGOJxYMWSQ%2Fj1Y
> 9f6Q%3D&amp;reserved=0 .
> > >>> kernel.org/linux-
> > >>>
> iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> > >>> B1310.namprd10.prod.outlook.com
> > >>>
> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > >>>
> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > >>>
> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > >>>
> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > >>> Signed-off-by: Will Deacon <will@kernel.org>
> > >>> ---
> > >>>
> > >>> Hi all,
> > >>>
> > >>> Since Joerg is away at the moment, I'm posting this to try to make
> > >>> some progress with the thread in the Link: tag.
> > >> + Felix
> > >>
> > >> What system is this?  Can you provide more details?  Does a sbios
> > >> update fix this?  Disabling ATS for all Ravens will break GPU
> > >> compute for a lot of people.  I'd prefer to just black list this
> > >> particular system (e.g., just SSIDs or revision) if possible.
> >
> > +Ray
> >
> > There are already many systems where the IOMMU is disabled in the
> > BIOS, or the CRAT table reporting the APU compute capabilities is
> > broken. Ray has been working on a fallback to make APUs behave like
> > dGPUs on such systems. That should also cover this case where ATS is
> > blacklisted. That said, it affects the programming model, because we
> > don't support the unified and coherent memory model on dGPUs like we
> > do on APUs with IOMMUv2. So it would be good to make the conditions
> > for this workaround as narrow as possible.
> 
> Yes, besides the comments from Alex and Felix, may we get your firmware
> version (SMC firmware which is from SBIOS) and device id?
> 
> > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout,
> > >>> signaled seq=1, emitted seq=3
> 
> It looks only gfx ib test passed, and fails to lanuch desktop, am I right?
> 
> We would like to see whether it is Raven, Raven kicker (new Raven), or
> Picasso. In our side, per the internal test result, we didn't see the similiar
> issue on Raven kicker and Picasso platform.
> 
> Thanks,
> Ray
> 
> >
> > These are the relevant changes in KFD and Thunk for reference:
> >
> > ### KFD ###
> >
> > commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> > Author: Huang Rui <ray.huang@amd.com>
> > Date:   Tue Aug 18 14:54:23 2020 +0800
> >
> >      drm/amdkfd: implement the dGPU fallback path for apu (v6)
> >
> >      We still have a few iommu issues which need to address, so force
> > raven
> >      as "dgpu" path for the moment.
> >
> >      This is to add the fallback path to bypass IOMMU if IOMMU v2 is
> > disabled
> >      or ACPI CRAT table not correct.
> >
> >      v2: Use ignore_crat parameter to decide whether it will go with
> > IOMMUv2.
> >      v3: Align with existed thunk, don't change the way of raven, only
> > renoir
> >          will use "dgpu" path by default.
> >      v4: don't update global ignore_crat in the driver, and revise
> > fallback
> >          function if CRAT is broken.
> >      v5: refine acpi crat good but no iommu support case, and rename
> > the
> >          title.
> >      v6: fix the issue of dGPU initialized firstly, just modify the
> > report
> >          value in the node_show().
> >
> >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> >      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
> >      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> >
> > ### Thunk ###
> >
> > commit e32482fa4b9ca398c8bdc303920abfd672592764
> > Author: Huang Rui <ray.huang@amd.com>
> > Date:   Tue Aug 18 18:54:05 2020 +0800
> >
> >      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> >
> >      Whether use dgpu path will check the props which exposed from kernel.
> >      We won't need hard code in the ASIC table.
> >
> >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> >      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> >
> > commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> > Author: Huang Rui <ray.huang@amd.com>
> > Date:   Thu Jul 30 10:22:23 2020 +0800
> >
> >      libhsakmt: implement the method that using flag which exposed by
> > kfd to configure is_dgpu
> >
> >      KFD already implemented the fallback path for APU. Thunk will use
> > flag
> >      which exposed by kfd to configure is_dgpu instead of hardcode before.
> >
> >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> >      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> >
> > Regards,
> >    Felix
> >
> >
> > > Cheers, Alex. I'll have to defer to Edgar for the details, as my
> > > understanding from the original thread over at:
> > >
> > >
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fur
> > > ldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__lore.kernel.org&a
> > >
> mp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5fa241f963469
> 2c039
> > >
> 08d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63741
> 79972
> > >
> 72974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> V2luMzI
> > >
> iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=iKTPucGQqcRXET
> QZiQz
> > > j90WdJeCYDytdZHJ1ZiUyR%2FM%3D&amp;reserved=0
> > > _linux-2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-
> 40MWHPR10MB131
> > >
> 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3Y
> JGoxo
> > > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP13_P6LVp7j_9l1xmg&m=lNXu
> > >
> 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU
> 60y21
> > > ijWZmZ8xmOK1cO_O0&e=
> > >
> > > is that this is a board developed by his company.
> > >
> > > Edgar -- please can you answer Alex's questions?
> > >
> > > Will

RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Merger, Edgar [AUTOSOL/MAS/AUGS]]

I see that problem only on systems that use a R1305G APU

sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info

shows

VCE feature version: 0, firmware version: 0x00000000
UVD feature version: 0, firmware version: 0x00000000
MC feature version: 0, firmware version: 0x00000000
ME feature version: 50, firmware version: 0x000000a3
PFP feature version: 50, firmware version: 0x000000bb
CE feature version: 50, firmware version: 0x0000004f
RLC feature version: 1, firmware version: 0x00000049
RLC SRLC feature version: 1, firmware version: 0x00000001
RLC SRLG feature version: 1, firmware version: 0x00000001
RLC SRLS feature version: 1, firmware version: 0x00000001
MEC feature version: 50, firmware version: 0x000001b5
MEC2 feature version: 50, firmware version: 0x000001b5
SOS feature version: 0, firmware version: 0x00000000
ASD feature version: 0, firmware version: 0x21000030
TA XGMI feature version: 0, firmware version: 0x00000000
TA RAS feature version: 0, firmware version: 0x00000000
SMC feature version: 0, firmware version: 0x00002527
SDMA0 feature version: 41, firmware version: 0x000000a9
VCN feature version: 0, firmware version: 0x0110901c
DMCU feature version: 0, firmware version: 0x00000001
VBIOS version: 113-RAVEN2-117

We are also using V1404I APU on the same boards and I haven´t seen the issue on those boards

These boards give me slightly different info: sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info
 
VCE feature version: 0, firmware version: 0x00000000
UVD feature version: 0, firmware version: 0x00000000
MC feature version: 0, firmware version: 0x00000000
ME feature version: 47, firmware version: 0x000000a2
PFP feature version: 47, firmware version: 0x000000b9
CE feature version: 47, firmware version: 0x0000004e
RLC feature version: 1, firmware version: 0x00000213
RLC SRLC feature version: 1, firmware version: 0x00000001
RLC SRLG feature version: 1, firmware version: 0x00000001
RLC SRLS feature version: 1, firmware version: 0x00000001
MEC feature version: 47, firmware version: 0x000001ab
MEC2 feature version: 47, firmware version: 0x000001ab
SOS feature version: 0, firmware version: 0x00000000
ASD feature version: 0, firmware version: 0x21000013
TA XGMI feature version: 0, firmware version: 0x00000000
TA RAS feature version: 0, firmware version: 0x00000000
SMC feature version: 0, firmware version: 0x00001e5b
SDMA0 feature version: 41, firmware version: 0x000000a9
VCN feature version: 0, firmware version: 0x0110901c
DMCU feature version: 0, firmware version: 0x00000000
VBIOS version: 113-RAVEN-116




00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch Upstream (PCIE SW.US)
00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch Upstream (PCIE SW.US)
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A
00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus B
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 7
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0e)
01:00.1 Serial controller: Realtek Semiconductor Co., Ltd. Device 816a (rev 0e)
01:00.2 Serial controller: Realtek Semiconductor Co., Ltd. Device 816b (rev 0e)
01:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 816c (rev 0e)
01:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 816d (rev 0e)
02:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
03:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
04:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
04:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
04:03.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
04:04.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
04:05.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
06:00.0 Serial controller: Asix Electronics Corporation Device 9100
06:00.1 Serial controller: Asix Electronics Corporation Device 9100
07:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
0a:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso (rev cf)
0b:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller
0b:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor
0b:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven2 USB 3.1
0b:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor
0b:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver
0c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 61)

PCI Revision ID is 06 I believe. Got that from this lspci -xx

00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch Upstream (PCIE SW.US)
00: 22 10 5d 14 07 04 10 00 00 00 04 06 10 00 81 00
10: 00 00 00 00 00 00 00 00 00 02 02 00 f1 01 00 00
20: e0 fc e0 fc f1 ff 01 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 12 00
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50: 01 58 03 c8 00 00 00 00 10 a0 42 01 22 80 00 00
60: 1f 29 00 00 13 38 73 03 42 00 11 30 00 00 04 00
70: 00 00 40 01 18 00 01 00 00 00 00 00 bf 01 70 00
80: 06 00 00 00 0e 00 00 00 03 00 01 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 05 c0 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 0d c8 00 00 22 10 34 12 08 00 03 a8 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 4c 8a 05 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

-----Original Message-----
From: Deucher, Alexander <Alexander.Deucher@amd.com> 
Sent: Dienstag, 24. November 2020 16:06
To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[AMD Public Use]

> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>
> Sent: Tuesday, November 24, 2020 2:29 AM
> To: Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux- 
> pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas 
> <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng 
> <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> Module Version : PiccasoCpu 10
> AGESA Version   : PiccasoPI 100A
> 
> I did not try to enter the system in any other way (like via ssh) than 
> via Desktop.

You can get this information from the amdgpu driver.  E.g., sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info .  Also what is the PCI revision id of your chip (from lspci)?  Also are you just seeing this on specific versions of the sbios?

Thanks,

Alex


> 
> -----Original Message-----
> From: Huang Rui <ray.huang@amd.com>
> Sent: Dienstag, 24. November 2020 07:43
> To: Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux- 
> pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas 
> <bhelgaas@google.com>; Merger, Edgar [AUTOSOL/MAS/AUGS] 
> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>; Changfeng 
> Zhu <changfeng.zhu@amd.com>
> Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> 
> On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> > On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander wrote:
> > >> [AMD Public Use]
> > >>
> > >>> -----Original Message-----
> > >>> From: Will Deacon <will@kernel.org>
> > >>> Sent: Monday, November 23, 2020 8:44 AM
> > >>> To: linux-kernel@vger.kernel.org
> > >>> Cc: linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > >>> Will Deacon <will@kernel.org>; Bjorn Helgaas 
> > >>> <bhelgaas@google.com>; Deucher, Alexander 
> > >>> <Alexander.Deucher@amd.com>; Edgar Merger 
> > >>> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
> > >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > >>>
> > >>> Edgar Merger reports that the AMD Raven GPU does not work 
> > >>> reliably on his system when the IOMMU is enabled:
> > >>>
> > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > >>> timeout, signaled seq=1, emitted seq=3
> > >>>    | [...]
> > >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> > >>>    | AMD-Vi: Completion-Wait loop timed out
> > >>>    | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> > >>> device=0b:00.0 address=0x38edc0970]
> > >>>
> > >>> This is indicative of a hardware/platform configuration issue 
> > >>> so, since disabling ATS has been shown to resolve the problem, 
> > >>> add a quirk to match this particular device while Edgar 
> > >>> follows-up with AMD
> for more information.
> > >>>
> > >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> > >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> > >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> > >>> Link:
> > >>>
> https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.p
> rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Furld&d=DwIFAw&c=jOU
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP1
> 3_P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-udp1CLokf2QWuzFgE&s=ZLdz6
> OgavzNn2vSzsgyL1IB6MbK7hPKavOYwbLhyTPU&e=
> efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__lore%26d%3DDwIDAw%26c%3DjOURTkCZzT8tVB5xPEYIm3YJGoxoTaQs
> QPzPKJGaWbo%26r%3DBJxhacqqa4K1PJGm6_-
> 862rdSP13_P6LVp7j_9l1xmg%26m%3DlNXu2xwvyxEZ3PzoVmXMBXXS55jsmf
> DicuQFJqkIOH4%26s%3D_5VDNCRQdA7AhsvvZ3TJJtQZ2iBp9c9tFHIleTYT_ZM
> %26e%3D&amp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5f
> a241f9634692c03908d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7
> C0%7C0%7C637417997272974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi
> MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C100
> 0&amp;sdata=OEgYlw%2F1YP0C%2FnWBRQUxwBH56mGOJxYMWSQ%2Fj1Y
> 9f6Q%3D&amp;reserved=0 .
> > >>> kernel.org/linux-
> > >>>
> iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> > >>> B1310.namprd10.prod.outlook.com
> > >>>
> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > >>>
> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > >>>
> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > >>>
> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > >>> Signed-off-by: Will Deacon <will@kernel.org>
> > >>> ---
> > >>>
> > >>> Hi all,
> > >>>
> > >>> Since Joerg is away at the moment, I'm posting this to try to 
> > >>> make some progress with the thread in the Link: tag.
> > >> + Felix
> > >>
> > >> What system is this?  Can you provide more details?  Does a sbios 
> > >> update fix this?  Disabling ATS for all Ravens will break GPU 
> > >> compute for a lot of people.  I'd prefer to just black list this 
> > >> particular system (e.g., just SSIDs or revision) if possible.
> >
> > +Ray
> >
> > There are already many systems where the IOMMU is disabled in the 
> > BIOS, or the CRAT table reporting the APU compute capabilities is 
> > broken. Ray has been working on a fallback to make APUs behave like 
> > dGPUs on such systems. That should also cover this case where ATS is 
> > blacklisted. That said, it affects the programming model, because we 
> > don't support the unified and coherent memory model on dGPUs like we 
> > do on APUs with IOMMUv2. So it would be good to make the conditions 
> > for this workaround as narrow as possible.
> 
> Yes, besides the comments from Alex and Felix, may we get your 
> firmware version (SMC firmware which is from SBIOS) and device id?
> 
> > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > >>> timeout, signaled seq=1, emitted seq=3
> 
> It looks only gfx ib test passed, and fails to lanuch desktop, am I right?
> 
> We would like to see whether it is Raven, Raven kicker (new Raven), or 
> Picasso. In our side, per the internal test result, we didn't see the 
> similiar issue on Raven kicker and Picasso platform.
> 
> Thanks,
> Ray
> 
> >
> > These are the relevant changes in KFD and Thunk for reference:
> >
> > ### KFD ###
> >
> > commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> > Author: Huang Rui <ray.huang@amd.com>
> > Date:   Tue Aug 18 14:54:23 2020 +0800
> >
> >      drm/amdkfd: implement the dGPU fallback path for apu (v6)
> >
> >      We still have a few iommu issues which need to address, so 
> > force raven
> >      as "dgpu" path for the moment.
> >
> >      This is to add the fallback path to bypass IOMMU if IOMMU v2 is 
> > disabled
> >      or ACPI CRAT table not correct.
> >
> >      v2: Use ignore_crat parameter to decide whether it will go with 
> > IOMMUv2.
> >      v3: Align with existed thunk, don't change the way of raven, 
> > only renoir
> >          will use "dgpu" path by default.
> >      v4: don't update global ignore_crat in the driver, and revise 
> > fallback
> >          function if CRAT is broken.
> >      v5: refine acpi crat good but no iommu support case, and rename 
> > the
> >          title.
> >      v6: fix the issue of dGPU initialized firstly, just modify the 
> > report
> >          value in the node_show().
> >
> >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> >      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
> >      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> >
> > ### Thunk ###
> >
> > commit e32482fa4b9ca398c8bdc303920abfd672592764
> > Author: Huang Rui <ray.huang@amd.com>
> > Date:   Tue Aug 18 18:54:05 2020 +0800
> >
> >      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> >
> >      Whether use dgpu path will check the props which exposed from kernel.
> >      We won't need hard code in the ASIC table.
> >
> >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> >      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> >
> > commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> > Author: Huang Rui <ray.huang@amd.com>
> > Date:   Thu Jul 30 10:22:23 2020 +0800
> >
> >      libhsakmt: implement the method that using flag which exposed 
> > by kfd to configure is_dgpu
> >
> >      KFD already implemented the fallback path for APU. Thunk will 
> > use flag
> >      which exposed by kfd to configure is_dgpu instead of hardcode before.
> >
> >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> >      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> >
> > Regards,
> >    Felix
> >
> >
> > > Cheers, Alex. I'll have to defer to Edgar for the details, as my 
> > > understanding from the original thread over at:
> > >
> > >
> https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.p
> rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fur&d=DwIFAw&c=jOURT
> kCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP13_
> P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-udp1CLokf2QWuzFgE&s=IPZRolk
> y3TYlbWPsOkY37MbDdzwhc1b_LaE6JkaOkOo&e=
> > > ldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__lore.kernel.org&a
> > >
> mp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5fa241f963469
> 2c039
> > >
> 08d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63741
> 79972
> > >
> 72974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> V2luMzI
> > >
> iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=iKTPucGQqcRXET
> QZiQz
> > > j90WdJeCYDytdZHJ1ZiUyR%2FM%3D&amp;reserved=0
> > > _linux-2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-
> 40MWHPR10MB131
> > >
> 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3Y
> JGoxo
> > > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP13_P6LVp7j_9l1xmg&m=lNXu
> > >
> 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU
> 60y21
> > > ijWZmZ8xmOK1cO_O0&e=
> > >
> > > is that this is a board developed by his company.
> > >
> > > Edgar -- please can you answer Alex's questions?
> > >
> > > Will

RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Merger, Edgar [AUTOSOL/MAS/AUGS]]

Remark: 

Systems with R1305G APU (which show the issue) have the following VGA-Controller:
0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso (rev cf)

Systems with V1404I APU (which do not show the issue) have the following VGA-Controller:
0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] (rev 83)

"rev cf" vs. "ref 83" is probably what you where referring to with PCI Revision ID.

-----Original Message-----
From: Merger, Edgar [AUTOSOL/MAS/AUGS] 
Sent: Mittwoch, 25. November 2020 07:05
To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

I see that problem only on systems that use a R1305G APU

sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info

shows

VCE feature version: 0, firmware version: 0x00000000 UVD feature version: 0, firmware version: 0x00000000 MC feature version: 0, firmware version: 0x00000000 ME feature version: 50, firmware version: 0x000000a3 PFP feature version: 50, firmware version: 0x000000bb CE feature version: 50, firmware version: 0x0000004f RLC feature version: 1, firmware version: 0x00000049 RLC SRLC feature version: 1, firmware version: 0x00000001 RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS feature version: 1, firmware version: 0x00000001 MEC feature version: 50, firmware version: 0x000001b5
MEC2 feature version: 50, firmware version: 0x000001b5 SOS feature version: 0, firmware version: 0x00000000 ASD feature version: 0, firmware version: 0x21000030 TA XGMI feature version: 0, firmware version: 0x00000000 TA RAS feature version: 0, firmware version: 0x00000000 SMC feature version: 0, firmware version: 0x00002527
SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature version: 0, firmware version: 0x0110901c DMCU feature version: 0, firmware version: 0x00000001 VBIOS version: 113-RAVEN2-117

We are also using V1404I APU on the same boards and I haven´t seen the issue on those boards

These boards give me slightly different info: sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info
 
VCE feature version: 0, firmware version: 0x00000000 UVD feature version: 0, firmware version: 0x00000000 MC feature version: 0, firmware version: 0x00000000 ME feature version: 47, firmware version: 0x000000a2 PFP feature version: 47, firmware version: 0x000000b9 CE feature version: 47, firmware version: 0x0000004e RLC feature version: 1, firmware version: 0x00000213 RLC SRLC feature version: 1, firmware version: 0x00000001 RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS feature version: 1, firmware version: 0x00000001 MEC feature version: 47, firmware version: 0x000001ab
MEC2 feature version: 47, firmware version: 0x000001ab SOS feature version: 0, firmware version: 0x00000000 ASD feature version: 0, firmware version: 0x21000013 TA XGMI feature version: 0, firmware version: 0x00000000 TA RAS feature version: 0, firmware version: 0x00000000 SMC feature version: 0, firmware version: 0x00001e5b
SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature version: 0, firmware version: 0x0110901c DMCU feature version: 0, firmware version: 0x00000000 VBIOS version: 113-RAVEN-116




00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch Upstream (PCIE SW.US)
00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch Upstream (PCIE SW.US)
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A
00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus B
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 7
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0e)
01:00.1 Serial controller: Realtek Semiconductor Co., Ltd. Device 816a (rev 0e)
01:00.2 Serial controller: Realtek Semiconductor Co., Ltd. Device 816b (rev 0e)
01:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 816c (rev 0e)
01:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 816d (rev 0e)
02:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
03:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
04:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
04:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
04:03.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
04:04.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
04:05.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
06:00.0 Serial controller: Asix Electronics Corporation Device 9100
06:00.1 Serial controller: Asix Electronics Corporation Device 9100
07:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
0a:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso (rev cf)
0b:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller
0b:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor
0b:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven2 USB 3.1
0b:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor
0b:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver
0c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 61)

PCI Revision ID is 06 I believe. Got that from this lspci -xx

00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch Upstream (PCIE SW.US)
00: 22 10 5d 14 07 04 10 00 00 00 04 06 10 00 81 00
10: 00 00 00 00 00 00 00 00 00 02 02 00 f1 01 00 00
20: e0 fc e0 fc f1 ff 01 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 12 00
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50: 01 58 03 c8 00 00 00 00 10 a0 42 01 22 80 00 00
60: 1f 29 00 00 13 38 73 03 42 00 11 30 00 00 04 00
70: 00 00 40 01 18 00 01 00 00 00 00 00 bf 01 70 00
80: 06 00 00 00 0e 00 00 00 03 00 01 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 05 c0 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 0d c8 00 00 22 10 34 12 08 00 03 a8 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 4c 8a 05 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

-----Original Message-----
From: Deucher, Alexander <Alexander.Deucher@amd.com>
Sent: Dienstag, 24. November 2020 16:06
To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[AMD Public Use]

> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>
> Sent: Tuesday, November 24, 2020 2:29 AM
> To: Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux- 
> pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas 
> <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng 
> <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> Module Version : PiccasoCpu 10
> AGESA Version   : PiccasoPI 100A
> 
> I did not try to enter the system in any other way (like via ssh) than 
> via Desktop.

You can get this information from the amdgpu driver.  E.g., sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info .  Also what is the PCI revision id of your chip (from lspci)?  Also are you just seeing this on specific versions of the sbios?

Thanks,

Alex


> 
> -----Original Message-----
> From: Huang Rui <ray.huang@amd.com>
> Sent: Dienstag, 24. November 2020 07:43
> To: Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux- 
> pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas 
> <bhelgaas@google.com>; Merger, Edgar [AUTOSOL/MAS/AUGS] 
> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>; Changfeng 
> Zhu <changfeng.zhu@amd.com>
> Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> 
> On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> > On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander wrote:
> > >> [AMD Public Use]
> > >>
> > >>> -----Original Message-----
> > >>> From: Will Deacon <will@kernel.org>
> > >>> Sent: Monday, November 23, 2020 8:44 AM
> > >>> To: linux-kernel@vger.kernel.org
> > >>> Cc: linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > >>> Will Deacon <will@kernel.org>; Bjorn Helgaas 
> > >>> <bhelgaas@google.com>; Deucher, Alexander 
> > >>> <Alexander.Deucher@amd.com>; Edgar Merger 
> > >>> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
> > >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > >>>
> > >>> Edgar Merger reports that the AMD Raven GPU does not work 
> > >>> reliably on his system when the IOMMU is enabled:
> > >>>
> > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > >>> timeout, signaled seq=1, emitted seq=3
> > >>>    | [...]
> > >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> > >>>    | AMD-Vi: Completion-Wait loop timed out
> > >>>    | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> > >>> device=0b:00.0 address=0x38edc0970]
> > >>>
> > >>> This is indicative of a hardware/platform configuration issue 
> > >>> so, since disabling ATS has been shown to resolve the problem, 
> > >>> add a quirk to match this particular device while Edgar 
> > >>> follows-up with AMD
> for more information.
> > >>>
> > >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> > >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> > >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> > >>> Link:
> > >>>
> https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.p
> rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Furld&d=DwIFAw&c=jOU
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP1
> 3_P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-udp1CLokf2QWuzFgE&s=ZLdz6
> OgavzNn2vSzsgyL1IB6MbK7hPKavOYwbLhyTPU&e=
> efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__lore%26d%3DDwIDAw%26c%3DjOURTkCZzT8tVB5xPEYIm3YJGoxoTaQs
> QPzPKJGaWbo%26r%3DBJxhacqqa4K1PJGm6_-
> 862rdSP13_P6LVp7j_9l1xmg%26m%3DlNXu2xwvyxEZ3PzoVmXMBXXS55jsmf
> DicuQFJqkIOH4%26s%3D_5VDNCRQdA7AhsvvZ3TJJtQZ2iBp9c9tFHIleTYT_ZM
> %26e%3D&amp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5f
> a241f9634692c03908d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7
> C0%7C0%7C637417997272974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi
> MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C100
> 0&amp;sdata=OEgYlw%2F1YP0C%2FnWBRQUxwBH56mGOJxYMWSQ%2Fj1Y
> 9f6Q%3D&amp;reserved=0 .
> > >>> kernel.org/linux-
> > >>>
> iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> > >>> B1310.namprd10.prod.outlook.com
> > >>>
> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > >>>
> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > >>>
> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > >>>
> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > >>> Signed-off-by: Will Deacon <will@kernel.org>
> > >>> ---
> > >>>
> > >>> Hi all,
> > >>>
> > >>> Since Joerg is away at the moment, I'm posting this to try to 
> > >>> make some progress with the thread in the Link: tag.
> > >> + Felix
> > >>
> > >> What system is this?  Can you provide more details?  Does a sbios 
> > >> update fix this?  Disabling ATS for all Ravens will break GPU 
> > >> compute for a lot of people.  I'd prefer to just black list this 
> > >> particular system (e.g., just SSIDs or revision) if possible.
> >
> > +Ray
> >
> > There are already many systems where the IOMMU is disabled in the 
> > BIOS, or the CRAT table reporting the APU compute capabilities is 
> > broken. Ray has been working on a fallback to make APUs behave like 
> > dGPUs on such systems. That should also cover this case where ATS is 
> > blacklisted. That said, it affects the programming model, because we 
> > don't support the unified and coherent memory model on dGPUs like we 
> > do on APUs with IOMMUv2. So it would be good to make the conditions 
> > for this workaround as narrow as possible.
> 
> Yes, besides the comments from Alex and Felix, may we get your 
> firmware version (SMC firmware which is from SBIOS) and device id?
> 
> > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > >>> timeout, signaled seq=1, emitted seq=3
> 
> It looks only gfx ib test passed, and fails to lanuch desktop, am I right?
> 
> We would like to see whether it is Raven, Raven kicker (new Raven), or 
> Picasso. In our side, per the internal test result, we didn't see the 
> similiar issue on Raven kicker and Picasso platform.
> 
> Thanks,
> Ray
> 
> >
> > These are the relevant changes in KFD and Thunk for reference:
> >
> > ### KFD ###
> >
> > commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> > Author: Huang Rui <ray.huang@amd.com>
> > Date:   Tue Aug 18 14:54:23 2020 +0800
> >
> >      drm/amdkfd: implement the dGPU fallback path for apu (v6)
> >
> >      We still have a few iommu issues which need to address, so 
> > force raven
> >      as "dgpu" path for the moment.
> >
> >      This is to add the fallback path to bypass IOMMU if IOMMU v2 is 
> > disabled
> >      or ACPI CRAT table not correct.
> >
> >      v2: Use ignore_crat parameter to decide whether it will go with 
> > IOMMUv2.
> >      v3: Align with existed thunk, don't change the way of raven, 
> > only renoir
> >          will use "dgpu" path by default.
> >      v4: don't update global ignore_crat in the driver, and revise 
> > fallback
> >          function if CRAT is broken.
> >      v5: refine acpi crat good but no iommu support case, and rename 
> > the
> >          title.
> >      v6: fix the issue of dGPU initialized firstly, just modify the 
> > report
> >          value in the node_show().
> >
> >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> >      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
> >      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> >
> > ### Thunk ###
> >
> > commit e32482fa4b9ca398c8bdc303920abfd672592764
> > Author: Huang Rui <ray.huang@amd.com>
> > Date:   Tue Aug 18 18:54:05 2020 +0800
> >
> >      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> >
> >      Whether use dgpu path will check the props which exposed from kernel.
> >      We won't need hard code in the ASIC table.
> >
> >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> >      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> >
> > commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> > Author: Huang Rui <ray.huang@amd.com>
> > Date:   Thu Jul 30 10:22:23 2020 +0800
> >
> >      libhsakmt: implement the method that using flag which exposed 
> > by kfd to configure is_dgpu
> >
> >      KFD already implemented the fallback path for APU. Thunk will 
> > use flag
> >      which exposed by kfd to configure is_dgpu instead of hardcode before.
> >
> >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> >      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> >
> > Regards,
> >    Felix
> >
> >
> > > Cheers, Alex. I'll have to defer to Edgar for the details, as my 
> > > understanding from the original thread over at:
> > >
> > >
> https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.p
> rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fur&d=DwIFAw&c=jOURT
> kCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP13_
> P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-udp1CLokf2QWuzFgE&s=IPZRolk
> y3TYlbWPsOkY37MbDdzwhc1b_LaE6JkaOkOo&e=
> > > ldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__lore.kernel.org&a
> > >
> mp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5fa241f963469
> 2c039
> > >
> 08d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63741
> 79972
> > >
> 72974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> V2luMzI
> > >
> iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=iKTPucGQqcRXET
> QZiQz
> > > j90WdJeCYDytdZHJ1ZiUyR%2FM%3D&amp;reserved=0
> > > _linux-2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-
> 40MWHPR10MB131
> > >
> 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3Y
> JGoxo
> > > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP13_P6LVp7j_9l1xmg&m=lNXu
> > >
> 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU
> 60y21
> > > ijWZmZ8xmOK1cO_O0&e=
> > >
> > > is that this is a board developed by his company.
> > >
> > > Edgar -- please can you answer Alex's questions?
> > >
> > > Will

RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Merger, Edgar [AUTOSOL/MAS/AUGS]]

I do have also other problems with this unit, when IOMMU is enabled and pci=noats is not set as kernel parameter.

[ 2004.265906] amdgpu 0000:0b:00.0: [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* IB test failed on gfx (-110).
[ 2004.266024] [drm:amdgpu_device_delayed_init_work_handler [amdgpu]] *ERROR* ib ring test failed (-110).

-----Original Message-----
From: Merger, Edgar [AUTOSOL/MAS/AUGS] 
Sent: Mittwoch, 25. November 2020 10:16
To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang, Ray' <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org' <linux-kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org' <linux-pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org' <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas' <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu, Changfeng' <Changfeng.Zhu@amd.com>
Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

Remark: 

Systems with R1305G APU (which show the issue) have the following VGA-Controller:
0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso (rev cf)

Systems with V1404I APU (which do not show the issue) have the following VGA-Controller:
0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] (rev 83)

"rev cf" vs. "ref 83" is probably what you where referring to with PCI Revision ID.

-----Original Message-----
From: Merger, Edgar [AUTOSOL/MAS/AUGS]
Sent: Mittwoch, 25. November 2020 07:05
To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

I see that problem only on systems that use a R1305G APU

sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info

shows

VCE feature version: 0, firmware version: 0x00000000 UVD feature version: 0, firmware version: 0x00000000 MC feature version: 0, firmware version: 0x00000000 ME feature version: 50, firmware version: 0x000000a3 PFP feature version: 50, firmware version: 0x000000bb CE feature version: 50, firmware version: 0x0000004f RLC feature version: 1, firmware version: 0x00000049 RLC SRLC feature version: 1, firmware version: 0x00000001 RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS feature version: 1, firmware version: 0x00000001 MEC feature version: 50, firmware version: 0x000001b5
MEC2 feature version: 50, firmware version: 0x000001b5 SOS feature version: 0, firmware version: 0x00000000 ASD feature version: 0, firmware version: 0x21000030 TA XGMI feature version: 0, firmware version: 0x00000000 TA RAS feature version: 0, firmware version: 0x00000000 SMC feature version: 0, firmware version: 0x00002527
SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature version: 0, firmware version: 0x0110901c DMCU feature version: 0, firmware version: 0x00000001 VBIOS version: 113-RAVEN2-117

We are also using V1404I APU on the same boards and I haven´t seen the issue on those boards

These boards give me slightly different info: sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info
 
VCE feature version: 0, firmware version: 0x00000000 UVD feature version: 0, firmware version: 0x00000000 MC feature version: 0, firmware version: 0x00000000 ME feature version: 47, firmware version: 0x000000a2 PFP feature version: 47, firmware version: 0x000000b9 CE feature version: 47, firmware version: 0x0000004e RLC feature version: 1, firmware version: 0x00000213 RLC SRLC feature version: 1, firmware version: 0x00000001 RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS feature version: 1, firmware version: 0x00000001 MEC feature version: 47, firmware version: 0x000001ab
MEC2 feature version: 47, firmware version: 0x000001ab SOS feature version: 0, firmware version: 0x00000000 ASD feature version: 0, firmware version: 0x21000013 TA XGMI feature version: 0, firmware version: 0x00000000 TA RAS feature version: 0, firmware version: 0x00000000 SMC feature version: 0, firmware version: 0x00001e5b
SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature version: 0, firmware version: 0x0110901c DMCU feature version: 0, firmware version: 0x00000000 VBIOS version: 113-RAVEN-116




00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch Upstream (PCIE SW.US)
00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch Upstream (PCIE SW.US)
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A
00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus B
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 7
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0e)
01:00.1 Serial controller: Realtek Semiconductor Co., Ltd. Device 816a (rev 0e)
01:00.2 Serial controller: Realtek Semiconductor Co., Ltd. Device 816b (rev 0e)
01:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 816c (rev 0e)
01:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 816d (rev 0e)
02:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
03:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
04:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
04:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
04:03.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
04:04.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
04:05.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
06:00.0 Serial controller: Asix Electronics Corporation Device 9100
06:00.1 Serial controller: Asix Electronics Corporation Device 9100
07:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
0a:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso (rev cf)
0b:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller
0b:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor
0b:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven2 USB 3.1
0b:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor
0b:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver
0c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 61)

PCI Revision ID is 06 I believe. Got that from this lspci -xx

00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch Upstream (PCIE SW.US)
00: 22 10 5d 14 07 04 10 00 00 00 04 06 10 00 81 00
10: 00 00 00 00 00 00 00 00 00 02 02 00 f1 01 00 00
20: e0 fc e0 fc f1 ff 01 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 12 00
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50: 01 58 03 c8 00 00 00 00 10 a0 42 01 22 80 00 00
60: 1f 29 00 00 13 38 73 03 42 00 11 30 00 00 04 00
70: 00 00 40 01 18 00 01 00 00 00 00 00 bf 01 70 00
80: 06 00 00 00 0e 00 00 00 03 00 01 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 05 c0 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 0d c8 00 00 22 10 34 12 08 00 03 a8 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 4c 8a 05 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

-----Original Message-----
From: Deucher, Alexander <Alexander.Deucher@amd.com>
Sent: Dienstag, 24. November 2020 16:06
To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[AMD Public Use]

> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>
> Sent: Tuesday, November 24, 2020 2:29 AM
> To: Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux- 
> pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas 
> <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng 
> <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> Module Version : PiccasoCpu 10
> AGESA Version   : PiccasoPI 100A
> 
> I did not try to enter the system in any other way (like via ssh) than 
> via Desktop.

You can get this information from the amdgpu driver.  E.g., sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info .  Also what is the PCI revision id of your chip (from lspci)?  Also are you just seeing this on specific versions of the sbios?

Thanks,

Alex


> 
> -----Original Message-----
> From: Huang Rui <ray.huang@amd.com>
> Sent: Dienstag, 24. November 2020 07:43
> To: Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux- 
> pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas 
> <bhelgaas@google.com>; Merger, Edgar [AUTOSOL/MAS/AUGS] 
> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>; Changfeng 
> Zhu <changfeng.zhu@amd.com>
> Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> 
> On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> > On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander wrote:
> > >> [AMD Public Use]
> > >>
> > >>> -----Original Message-----
> > >>> From: Will Deacon <will@kernel.org>
> > >>> Sent: Monday, November 23, 2020 8:44 AM
> > >>> To: linux-kernel@vger.kernel.org
> > >>> Cc: linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > >>> Will Deacon <will@kernel.org>; Bjorn Helgaas 
> > >>> <bhelgaas@google.com>; Deucher, Alexander 
> > >>> <Alexander.Deucher@amd.com>; Edgar Merger 
> > >>> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
> > >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > >>>
> > >>> Edgar Merger reports that the AMD Raven GPU does not work 
> > >>> reliably on his system when the IOMMU is enabled:
> > >>>
> > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > >>> timeout, signaled seq=1, emitted seq=3
> > >>>    | [...]
> > >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> > >>>    | AMD-Vi: Completion-Wait loop timed out
> > >>>    | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> > >>> device=0b:00.0 address=0x38edc0970]
> > >>>
> > >>> This is indicative of a hardware/platform configuration issue 
> > >>> so, since disabling ATS has been shown to resolve the problem, 
> > >>> add a quirk to match this particular device while Edgar 
> > >>> follows-up with AMD
> for more information.
> > >>>
> > >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> > >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> > >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> > >>> Link:
> > >>>
> https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.p
> rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Furld&d=DwIFAw&c=jOU
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP1
> 3_P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-udp1CLokf2QWuzFgE&s=ZLdz6
> OgavzNn2vSzsgyL1IB6MbK7hPKavOYwbLhyTPU&e=
> efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__lore%26d%3DDwIDAw%26c%3DjOURTkCZzT8tVB5xPEYIm3YJGoxoTaQs
> QPzPKJGaWbo%26r%3DBJxhacqqa4K1PJGm6_-
> 862rdSP13_P6LVp7j_9l1xmg%26m%3DlNXu2xwvyxEZ3PzoVmXMBXXS55jsmf
> DicuQFJqkIOH4%26s%3D_5VDNCRQdA7AhsvvZ3TJJtQZ2iBp9c9tFHIleTYT_ZM
> %26e%3D&amp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5f
> a241f9634692c03908d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7
> C0%7C0%7C637417997272974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi
> MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C100
> 0&amp;sdata=OEgYlw%2F1YP0C%2FnWBRQUxwBH56mGOJxYMWSQ%2Fj1Y
> 9f6Q%3D&amp;reserved=0 .
> > >>> kernel.org/linux-
> > >>>
> iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> > >>> B1310.namprd10.prod.outlook.com
> > >>>
> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > >>>
> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > >>>
> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > >>>
> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > >>> Signed-off-by: Will Deacon <will@kernel.org>
> > >>> ---
> > >>>
> > >>> Hi all,
> > >>>
> > >>> Since Joerg is away at the moment, I'm posting this to try to 
> > >>> make some progress with the thread in the Link: tag.
> > >> + Felix
> > >>
> > >> What system is this?  Can you provide more details?  Does a sbios 
> > >> update fix this?  Disabling ATS for all Ravens will break GPU 
> > >> compute for a lot of people.  I'd prefer to just black list this 
> > >> particular system (e.g., just SSIDs or revision) if possible.
> >
> > +Ray
> >
> > There are already many systems where the IOMMU is disabled in the 
> > BIOS, or the CRAT table reporting the APU compute capabilities is 
> > broken. Ray has been working on a fallback to make APUs behave like 
> > dGPUs on such systems. That should also cover this case where ATS is 
> > blacklisted. That said, it affects the programming model, because we 
> > don't support the unified and coherent memory model on dGPUs like we 
> > do on APUs with IOMMUv2. So it would be good to make the conditions 
> > for this workaround as narrow as possible.
> 
> Yes, besides the comments from Alex and Felix, may we get your 
> firmware version (SMC firmware which is from SBIOS) and device id?
> 
> > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > >>> timeout, signaled seq=1, emitted seq=3
> 
> It looks only gfx ib test passed, and fails to lanuch desktop, am I right?
> 
> We would like to see whether it is Raven, Raven kicker (new Raven), or 
> Picasso. In our side, per the internal test result, we didn't see the 
> similiar issue on Raven kicker and Picasso platform.
> 
> Thanks,
> Ray
> 
> >
> > These are the relevant changes in KFD and Thunk for reference:
> >
> > ### KFD ###
> >
> > commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> > Author: Huang Rui <ray.huang@amd.com>
> > Date:   Tue Aug 18 14:54:23 2020 +0800
> >
> >      drm/amdkfd: implement the dGPU fallback path for apu (v6)
> >
> >      We still have a few iommu issues which need to address, so 
> > force raven
> >      as "dgpu" path for the moment.
> >
> >      This is to add the fallback path to bypass IOMMU if IOMMU v2 is 
> > disabled
> >      or ACPI CRAT table not correct.
> >
> >      v2: Use ignore_crat parameter to decide whether it will go with 
> > IOMMUv2.
> >      v3: Align with existed thunk, don't change the way of raven, 
> > only renoir
> >          will use "dgpu" path by default.
> >      v4: don't update global ignore_crat in the driver, and revise 
> > fallback
> >          function if CRAT is broken.
> >      v5: refine acpi crat good but no iommu support case, and rename 
> > the
> >          title.
> >      v6: fix the issue of dGPU initialized firstly, just modify the 
> > report
> >          value in the node_show().
> >
> >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> >      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
> >      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> >
> > ### Thunk ###
> >
> > commit e32482fa4b9ca398c8bdc303920abfd672592764
> > Author: Huang Rui <ray.huang@amd.com>
> > Date:   Tue Aug 18 18:54:05 2020 +0800
> >
> >      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> >
> >      Whether use dgpu path will check the props which exposed from kernel.
> >      We won't need hard code in the ASIC table.
> >
> >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> >      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> >
> > commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> > Author: Huang Rui <ray.huang@amd.com>
> > Date:   Thu Jul 30 10:22:23 2020 +0800
> >
> >      libhsakmt: implement the method that using flag which exposed 
> > by kfd to configure is_dgpu
> >
> >      KFD already implemented the fallback path for APU. Thunk will 
> > use flag
> >      which exposed by kfd to configure is_dgpu instead of hardcode before.
> >
> >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> >      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> >
> > Regards,
> >    Felix
> >
> >
> > > Cheers, Alex. I'll have to defer to Edgar for the details, as my 
> > > understanding from the original thread over at:
> > >
> > >
> https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.p
> rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fur&d=DwIFAw&c=jOURT
> kCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP13_
> P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-udp1CLokf2QWuzFgE&s=IPZRolk
> y3TYlbWPsOkY37MbDdzwhc1b_LaE6JkaOkOo&e=
> > > ldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__lore.kernel.org&a
> > >
> mp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5fa241f963469
> 2c039
> > >
> 08d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63741
> 79972
> > >
> 72974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> V2luMzI
> > >
> iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=iKTPucGQqcRXET
> QZiQz
> > > j90WdJeCYDytdZHJ1ZiUyR%2FM%3D&amp;reserved=0
> > > _linux-2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-
> 40MWHPR10MB131
> > >
> 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3Y
> JGoxo
> > > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP13_P6LVp7j_9l1xmg&m=lNXu
> > >
> 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU
> 60y21
> > > ijWZmZ8xmOK1cO_O0&e=
> > >
> > > is that this is a board developed by his company.
> > >
> > > Edgar -- please can you answer Alex's questions?
> > >
> > > Will

RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Deucher, Alexander]

[-- Attachment #1: Type: text/plain, Size: 23704 bytes --]

[AMD Public Use]

> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>
> Sent: Wednesday, November 25, 2020 5:04 AM
> To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray
> <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-
> pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas
> <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng
> <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> broken
> 
> I do have also other problems with this unit, when IOMMU is enabled and
> pci=noats is not set as kernel parameter.
> 
> [ 2004.265906] amdgpu 0000:0b:00.0: [drm:amdgpu_ib_ring_tests [amdgpu]]
> *ERROR* IB test failed on gfx (-110).
> [ 2004.266024] [drm:amdgpu_device_delayed_init_work_handler [amdgpu]]
> *ERROR* ib ring test failed (-110).
> 

Is this seen on all instances of this chip or only specific silicon?  I.e., could this be a bad chip?  Would it be possible to test a newer sbios?  I think the attached patch should work if we can't get it fixed on the platform side.  It should only enable the quirk on your particular platform.

Alex


> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> Sent: Mittwoch, 25. November 2020 10:16
> To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang, Ray'
> <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
> Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org' <linux-
> kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org' <linux-
> pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org'
> <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas'
> <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu,
> Changfeng' <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> broken
> 
> Remark:
> 
> Systems with R1305G APU (which show the issue) have the following VGA-
> Controller:
> 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
> Picasso (rev cf)
> 
> Systems with V1404I APU (which do not show the issue) have the following
> VGA-Controller:
> 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
> Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] (rev 83)
> 
> "rev cf" vs. "ref 83" is probably what you where referring to with PCI Revision
> ID.
> 
> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> Sent: Mittwoch, 25. November 2020 07:05
> To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; Huang, Ray
> <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-
> pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas
> <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng
> <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> broken
> 
> I see that problem only on systems that use a R1305G APU
> 
> sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info
> 
> shows
> 
> VCE feature version: 0, firmware version: 0x00000000 UVD feature version: 0,
> firmware version: 0x00000000 MC feature version: 0, firmware version:
> 0x00000000 ME feature version: 50, firmware version: 0x000000a3 PFP
> feature version: 50, firmware version: 0x000000bb CE feature version: 50,
> firmware version: 0x0000004f RLC feature version: 1, firmware version:
> 0x00000049 RLC SRLC feature version: 1, firmware version: 0x00000001 RLC
> SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS feature
> version: 1, firmware version: 0x00000001 MEC feature version: 50, firmware
> version: 0x000001b5
> MEC2 feature version: 50, firmware version: 0x000001b5 SOS feature version:
> 0, firmware version: 0x00000000 ASD feature version: 0, firmware version:
> 0x21000030 TA XGMI feature version: 0, firmware version: 0x00000000 TA
> RAS feature version: 0, firmware version: 0x00000000 SMC feature version: 0,
> firmware version: 0x00002527
> SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature
> version: 0, firmware version: 0x0110901c DMCU feature version: 0, firmware
> version: 0x00000001 VBIOS version: 113-RAVEN2-117
> 
> We are also using V1404I APU on the same boards and I haven´t seen the
> issue on those boards
> 
> These boards give me slightly different info: sudo cat
> /sys/kernel/debug/dri/0/amdgpu_firmware_info
> 
> VCE feature version: 0, firmware version: 0x00000000 UVD feature version: 0,
> firmware version: 0x00000000 MC feature version: 0, firmware version:
> 0x00000000 ME feature version: 47, firmware version: 0x000000a2 PFP
> feature version: 47, firmware version: 0x000000b9 CE feature version: 47,
> firmware version: 0x0000004e RLC feature version: 1, firmware version:
> 0x00000213 RLC SRLC feature version: 1, firmware version: 0x00000001 RLC
> SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS feature
> version: 1, firmware version: 0x00000001 MEC feature version: 47, firmware
> version: 0x000001ab
> MEC2 feature version: 47, firmware version: 0x000001ab SOS feature version:
> 0, firmware version: 0x00000000 ASD feature version: 0, firmware version:
> 0x21000013 TA XGMI feature version: 0, firmware version: 0x00000000 TA
> RAS feature version: 0, firmware version: 0x00000000 SMC feature version: 0,
> firmware version: 0x00001e5b
> SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature
> version: 0, firmware version: 0x0110901c DMCU feature version: 0, firmware
> version: 0x00000000 VBIOS version: 113-RAVEN-116
> 
> 
> 
> 
> 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Root
> Complex
> 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 IOMMU
> 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models
> 00h-1fh) PCIe Dummy Host Bridge
> 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe
> GPP Bridge [6:0]
> 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch
> Upstream (PCIE SW.US)
> 00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe
> GPP Bridge [6:0]
> 00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch
> Upstream (PCIE SW.US)
> 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models
> 00h-1fh) PCIe Dummy Host Bridge
> 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> Internal PCIe GPP Bridge 0 to Bus A
> 00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> Internal PCIe GPP Bridge 0 to Bus B
> 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller
> (rev 61)
> 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev
> 51)
> 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> Device 24: Function 0
> 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> Device 24: Function 1
> 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> Device 24: Function 2
> 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> Device 24: Function 3
> 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> Device 24: Function 4
> 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> Device 24: Function 5
> 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> Device 24: Function 6
> 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> Device 24: Function 7
> 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0e)
> 01:00.1 Serial controller: Realtek Semiconductor Co., Ltd. Device 816a (rev 0e)
> 01:00.2 Serial controller: Realtek Semiconductor Co., Ltd. Device 816b (rev 0e)
> 01:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 816c (rev 0e)
> 01:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 816d (rev 0e)
> 02:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network
> Connection (rev 03)
> 03:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-
> Lane Packet Switch
> 04:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-
> Lane Packet Switch
> 04:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-
> Lane Packet Switch
> 04:03.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-
> Lane Packet Switch
> 04:04.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-
> Lane Packet Switch
> 04:05.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-
> Lane Packet Switch
> 06:00.0 Serial controller: Asix Electronics Corporation Device 9100
> 06:00.1 Serial controller: Asix Electronics Corporation Device 9100
> 07:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network
> Connection (rev 03)
> 0a:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network
> Connection (rev 03)
> 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
> Picasso (rev cf)
> 0b:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI]
> Raven/Raven2/Fenghuang HDMI/DP Audio Controller
> 0b:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h
> (Models 10h-1fh) Platform Security Processor
> 0b:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven2 USB 3.1
> 0b:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD]
> Raven/Raven2/FireFlight/Renoir Audio Processor
> 0b:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc. [AMD]
> Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver
> 0c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA
> Controller [AHCI mode] (rev 61)
> 
> PCI Revision ID is 06 I believe. Got that from this lspci -xx
> 
> 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch
> Upstream (PCIE SW.US)
> 00: 22 10 5d 14 07 04 10 00 00 00 04 06 10 00 81 00
> 10: 00 00 00 00 00 00 00 00 00 02 02 00 f1 01 00 00
> 20: e0 fc e0 fc f1 ff 01 00 00 00 00 00 00 00 00 00
> 30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 12 00
> 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 50: 01 58 03 c8 00 00 00 00 10 a0 42 01 22 80 00 00
> 60: 1f 29 00 00 13 38 73 03 42 00 11 30 00 00 04 00
> 70: 00 00 40 01 18 00 01 00 00 00 00 00 bf 01 70 00
> 80: 06 00 00 00 0e 00 00 00 03 00 01 00 00 00 00 00
> 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> a0: 05 c0 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00
> b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> c0: 0d c8 00 00 22 10 34 12 08 00 03 a8 00 00 00 00
> d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> e0: 00 00 00 00 4c 8a 05 00 00 00 00 00 00 00 00 00
> f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 
> -----Original Message-----
> From: Deucher, Alexander <Alexander.Deucher@amd.com>
> Sent: Dienstag, 24. November 2020 16:06
> To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>;
> Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix
> <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-
> pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas
> <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng
> <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> broken
> 
> [AMD Public Use]
> 
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>
> > Sent: Tuesday, November 24, 2020 2:29 AM
> > To: Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix
> > <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander
> > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux-
> > pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas
> > <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu,
> Changfeng
> > <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> > broken
> >
> > Module Version : PiccasoCpu 10
> > AGESA Version   : PiccasoPI 100A
> >
> > I did not try to enter the system in any other way (like via ssh) than
> > via Desktop.
> 
> You can get this information from the amdgpu driver.  E.g., sudo cat
> /sys/kernel/debug/dri/0/amdgpu_firmware_info .  Also what is the PCI
> revision id of your chip (from lspci)?  Also are you just seeing this on specific
> versions of the sbios?
> 
> Thanks,
> 
> Alex
> 
> 
> >
> > -----Original Message-----
> > From: Huang Rui <ray.huang@amd.com>
> > Sent: Dienstag, 24. November 2020 07:43
> > To: Kuehling, Felix <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander
> > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux-
> > pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas
> > <bhelgaas@google.com>; Merger, Edgar [AUTOSOL/MAS/AUGS]
> > <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>;
> Changfeng
> > Zhu <changfeng.zhu@amd.com>
> > Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> broken
> >
> > On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> > > On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > > > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander wrote:
> > > >> [AMD Public Use]
> > > >>
> > > >>> -----Original Message-----
> > > >>> From: Will Deacon <will@kernel.org>
> > > >>> Sent: Monday, November 23, 2020 8:44 AM
> > > >>> To: linux-kernel@vger.kernel.org
> > > >>> Cc: linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org;
> > > >>> Will Deacon <will@kernel.org>; Bjorn Helgaas
> > > >>> <bhelgaas@google.com>; Deucher, Alexander
> > > >>> <Alexander.Deucher@amd.com>; Edgar Merger
> > > >>> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
> > > >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > > >>>
> > > >>> Edgar Merger reports that the AMD Raven GPU does not work
> > > >>> reliably on his system when the IOMMU is enabled:
> > > >>>
> > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx
> > > >>> timeout, signaled seq=1, emitted seq=3
> > > >>>    | [...]
> > > >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> > > >>>    | AMD-Vi: Completion-Wait loop timed out
> > > >>>    | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> > > >>> device=0b:00.0 address=0x38edc0970]
> > > >>>
> > > >>> This is indicative of a hardware/platform configuration issue
> > > >>> so, since disabling ATS has been shown to resolve the problem,
> > > >>> add a quirk to match this particular device while Edgar
> > > >>> follows-up with AMD
> > for more information.
> > > >>>
> > > >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> > > >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> > > >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > > >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> > > >>> Link:
> > > >>>
> >
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Furld
> > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__nam11.safelinks.p&amp
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C1d797071822d47ce6
> c9808d8
> >
> 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
> 3633797
> >
> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> zIiLCJBTiI
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> sj6eMk3
> > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Furld&d=DwIFAw&c=jOU
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP1
> > 3_P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> udp1CLokf2QWuzFgE&s=ZLdz6
> > OgavzNn2vSzsgyL1IB6MbK7hPKavOYwbLhyTPU&e=
> > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> >
> 3A__lore%26d%3DDwIDAw%26c%3DjOURTkCZzT8tVB5xPEYIm3YJGoxoTaQs
> > QPzPKJGaWbo%26r%3DBJxhacqqa4K1PJGm6_-
> >
> 862rdSP13_P6LVp7j_9l1xmg%26m%3DlNXu2xwvyxEZ3PzoVmXMBXXS55jsmf
> >
> DicuQFJqkIOH4%26s%3D_5VDNCRQdA7AhsvvZ3TJJtQZ2iBp9c9tFHIleTYT_ZM
> >
> %26e%3D&amp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5f
> >
> a241f9634692c03908d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7
> >
> C0%7C0%7C637417997272974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi
> >
> MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C100
> >
> 0&amp;sdata=OEgYlw%2F1YP0C%2FnWBRQUxwBH56mGOJxYMWSQ%2Fj1Y
> > 9f6Q%3D&amp;reserved=0 .
> > > >>> kernel.org/linux-
> > > >>>
> > iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> > > >>> B1310.namprd10.prod.outlook.com
> > > >>>
> >
> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > > >>>
> >
> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > > >>>
> >
> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > > >>>
> >
> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > > >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > > >>> Signed-off-by: Will Deacon <will@kernel.org>
> > > >>> ---
> > > >>>
> > > >>> Hi all,
> > > >>>
> > > >>> Since Joerg is away at the moment, I'm posting this to try to
> > > >>> make some progress with the thread in the Link: tag.
> > > >> + Felix
> > > >>
> > > >> What system is this?  Can you provide more details?  Does a sbios
> > > >> update fix this?  Disabling ATS for all Ravens will break GPU
> > > >> compute for a lot of people.  I'd prefer to just black list this
> > > >> particular system (e.g., just SSIDs or revision) if possible.
> > >
> > > +Ray
> > >
> > > There are already many systems where the IOMMU is disabled in the
> > > BIOS, or the CRAT table reporting the APU compute capabilities is
> > > broken. Ray has been working on a fallback to make APUs behave like
> > > dGPUs on such systems. That should also cover this case where ATS is
> > > blacklisted. That said, it affects the programming model, because we
> > > don't support the unified and coherent memory model on dGPUs like we
> > > do on APUs with IOMMUv2. So it would be good to make the conditions
> > > for this workaround as narrow as possible.
> >
> > Yes, besides the comments from Alex and Felix, may we get your
> > firmware version (SMC firmware which is from SBIOS) and device id?
> >
> > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx
> > > >>> timeout, signaled seq=1, emitted seq=3
> >
> > It looks only gfx ib test passed, and fails to lanuch desktop, am I right?
> >
> > We would like to see whether it is Raven, Raven kicker (new Raven), or
> > Picasso. In our side, per the internal test result, we didn't see the
> > similiar issue on Raven kicker and Picasso platform.
> >
> > Thanks,
> > Ray
> >
> > >
> > > These are the relevant changes in KFD and Thunk for reference:
> > >
> > > ### KFD ###
> > >
> > > commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> > > Author: Huang Rui <ray.huang@amd.com>
> > > Date:   Tue Aug 18 14:54:23 2020 +0800
> > >
> > >      drm/amdkfd: implement the dGPU fallback path for apu (v6)
> > >
> > >      We still have a few iommu issues which need to address, so
> > > force raven
> > >      as "dgpu" path for the moment.
> > >
> > >      This is to add the fallback path to bypass IOMMU if IOMMU v2 is
> > > disabled
> > >      or ACPI CRAT table not correct.
> > >
> > >      v2: Use ignore_crat parameter to decide whether it will go with
> > > IOMMUv2.
> > >      v3: Align with existed thunk, don't change the way of raven,
> > > only renoir
> > >          will use "dgpu" path by default.
> > >      v4: don't update global ignore_crat in the driver, and revise
> > > fallback
> > >          function if CRAT is broken.
> > >      v5: refine acpi crat good but no iommu support case, and rename
> > > the
> > >          title.
> > >      v6: fix the issue of dGPU initialized firstly, just modify the
> > > report
> > >          value in the node_show().
> > >
> > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > >      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
> > >      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> > >
> > > ### Thunk ###
> > >
> > > commit e32482fa4b9ca398c8bdc303920abfd672592764
> > > Author: Huang Rui <ray.huang@amd.com>
> > > Date:   Tue Aug 18 18:54:05 2020 +0800
> > >
> > >      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> > >
> > >      Whether use dgpu path will check the props which exposed from
> kernel.
> > >      We won't need hard code in the ASIC table.
> > >
> > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > >      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> > >
> > > commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> > > Author: Huang Rui <ray.huang@amd.com>
> > > Date:   Thu Jul 30 10:22:23 2020 +0800
> > >
> > >      libhsakmt: implement the method that using flag which exposed
> > > by kfd to configure is_dgpu
> > >
> > >      KFD already implemented the fallback path for APU. Thunk will
> > > use flag
> > >      which exposed by kfd to configure is_dgpu instead of hardcode
> before.
> > >
> > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > >      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> > >
> > > Regards,
> > >    Felix
> > >
> > >
> > > > Cheers, Alex. I'll have to defer to Edgar for the details, as my
> > > > understanding from the original thread over at:
> > > >
> > > >
> >
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Furld
> > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__nam11.safelinks.p&amp
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C1d797071822d47ce6
> c9808d8
> >
> 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
> 3633797
> >
> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> zIiLCJBTiI
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> sj6eMk3
> > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Fur&d=DwIFAw&c=jOURT
> > kCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP13_
> > P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> udp1CLokf2QWuzFgE&s=IPZRolk
> > y3TYlbWPsOkY37MbDdzwhc1b_LaE6JkaOkOo&e=
> > > > ldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > 3A__lore.kernel.org&a
> > > >
> >
> mp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5fa241f963469
> > 2c039
> > > >
> >
> 08d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63741
> > 79972
> > > >
> >
> 72974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> > V2luMzI
> > > >
> >
> iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=iKTPucGQqcRXET
> > QZiQz
> > > > j90WdJeCYDytdZHJ1ZiUyR%2FM%3D&amp;reserved=0
> > > > _linux-2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-
> > 40MWHPR10MB131
> > > >
> >
> 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3Y
> > JGoxo
> > > > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > 862rdSP13_P6LVp7j_9l1xmg&m=lNXu
> > > >
> >
> 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU
> > 60y21
> > > > ijWZmZ8xmOK1cO_O0&e=
> > > >
> > > > is that this is a board developed by his company.
> > > >
> > > > Edgar -- please can you answer Alex's questions?
> > > >
> > > > Will

[-- Attachment #2: 0001-PCI-quirks-Add-an-ATS-quirk-for-a-Picasso-APU.patch --]
[-- Type: application/octet-stream, Size: 1615 bytes --]

From 4e9e80150dc4d736b833137d558e126f44115905 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 25 Nov 2020 10:57:15 -0500
Subject: [PATCH] PCI: quirks: Add an ATS quirk for a Picasso APU

This is very specific to a particular platform, because
ATS is required for GPU compute and this is not known
to be an issue on any other Picasso platforms.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/pci/quirks.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index f70692ac79c5..d6e3845d5d04 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5164,6 +5164,17 @@ static void quirk_amd_harvest_no_ats(struct pci_dev *pdev)
 	    (pdev->device == 0x7340 && pdev->revision != 0xc5))
 		return;
 
+	if (pdev->device == 0x15d8) {
+		if (pdev->revision == 0xcf &&
+		    pdev->subsystem_vendor == 0xea50 &&
+		    (pdev->subsystem_device == 0x0c19 ||
+		     pdev->subsystem_device == 0x0c10))
+			goto no_ats;
+		else
+			return;
+	}
+
+no_ats:
 	pci_info(pdev, "disabling ATS\n");
 	pdev->ats_cap = 0;
 }
@@ -5176,6 +5187,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, quirk_amd_harvest_no_ats);
 /* AMD Navi14 dGPU */
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats);
+/* AMD Raven platform iGPU */
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, quirk_amd_harvest_no_ats);
 #endif /* CONFIG_PCI_ATS */
 
 /* Freescale PCIe doesn't support MSI in RC mode */
-- 
2.25.4

RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Merger, Edgar [AUTOSOL/MAS/AUGS]]

Alex,

This is pretty much the same patch as what I have received from Joerg previously, except that it is tied to the particular Emerson platform and its derivatives (listed with Subsystem IDs). 

Below patch was what Joerg provided me and I successfully tested.

This diff to the kernel should do that:

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index f70692ac79c5..3911b0ec57ba 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5176,6 +5176,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats);  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, quirk_amd_harvest_no_ats);
 /* AMD Navi14 dGPU */
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats);
+/* AMD Raven platform iGPU */
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, 
+quirk_amd_harvest_no_ats);
 #endif /* CONFIG_PCI_ATS */
 
 /* Freescale PCIe doesn't support MSI in RC mode */

So far I have seen this issue on two instances of this chip, but I must admit that I did test only two of them to this extent, so I guess it is not a bad chip in particular, but the chips we use are from the same production lot, so it might be a systematical problem of that production lot?

UEFI-Setup shows:
Processor Family: 17h
Procossor Model: 20h - 2Fh
CPUID: 00820F01
Microcode Patch Level: 8200103

Looking at the chip-die I found that this is a fully qualified IP Silicon (according to Ryzen Embedded R1000 SOC Interlock).
YE1305C9T20FG
BI2015SUY
9JB6496P00123
2016 AMD
DIFFUSED IN USA
MADE IN CHINA

Currently used SBIOS is a branch from "EmbeddedPI-FP5 1.2.0.3RC3".

In the future our SBIOS might merge with EmbeddedPI-FP5_1.2.0.5RC3.




-----Original Message-----
From: Deucher, Alexander <Alexander.Deucher@amd.com> 
Sent: Mittwoch, 25. November 2020 17:08
To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[AMD Public Use]

> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>
> Sent: Wednesday, November 25, 2020 5:04 AM
> To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; 
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> I do have also other problems with this unit, when IOMMU is enabled 
> and pci=noats is not set as kernel parameter.
> 
> [ 2004.265906] amdgpu 0000:0b:00.0: [drm:amdgpu_ib_ring_tests 
> [amdgpu]]
> *ERROR* IB test failed on gfx (-110).
> [ 2004.266024] [drm:amdgpu_device_delayed_init_work_handler [amdgpu]]
> *ERROR* ib ring test failed (-110).
> 

Is this seen on all instances of this chip or only specific silicon?  I.e., could this be a bad chip?  Would it be possible to test a newer sbios?  I think the attached patch should work if we can't get it fixed on the platform side.  It should only enable the quirk on your particular platform.

Alex


> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> Sent: Mittwoch, 25. November 2020 10:16
> To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang, Ray'
> <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
> Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org' 
> <linux- kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org' <linux- 
> pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org'
> <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas'
> <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu, 
> Changfeng' <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> Remark:
> 
> Systems with R1305G APU (which show the issue) have the following VGA-
> Controller:
> 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. 
> [AMD/ATI] Picasso (rev cf)
> 
> Systems with V1404I APU (which do not show the issue) have the 
> following
> VGA-Controller:
> 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. 
> [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] 
> (rev 83)
> 
> "rev cf" vs. "ref 83" is probably what you where referring to with PCI 
> Revision ID.
> 
> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> Sent: Mittwoch, 25. November 2020 07:05
> To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; Huang, Ray 
> <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; 
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> I see that problem only on systems that use a R1305G APU
> 
> sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info
> 
> shows
> 
> VCE feature version: 0, firmware version: 0x00000000 UVD feature 
> version: 0, firmware version: 0x00000000 MC feature version: 0, firmware version:
> 0x00000000 ME feature version: 50, firmware version: 0x000000a3 PFP 
> feature version: 50, firmware version: 0x000000bb CE feature version: 
> 50, firmware version: 0x0000004f RLC feature version: 1, firmware version:
> 0x00000049 RLC SRLC feature version: 1, firmware version: 0x00000001 
> RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS 
> feature
> version: 1, firmware version: 0x00000001 MEC feature version: 50, 
> firmware
> version: 0x000001b5
> MEC2 feature version: 50, firmware version: 0x000001b5 SOS feature version:
> 0, firmware version: 0x00000000 ASD feature version: 0, firmware version:
> 0x21000030 TA XGMI feature version: 0, firmware version: 0x00000000 TA 
> RAS feature version: 0, firmware version: 0x00000000 SMC feature 
> version: 0, firmware version: 0x00002527
> SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature
> version: 0, firmware version: 0x0110901c DMCU feature version: 0, 
> firmware
> version: 0x00000001 VBIOS version: 113-RAVEN2-117
> 
> We are also using V1404I APU on the same boards and I haven´t seen the 
> issue on those boards
> 
> These boards give me slightly different info: sudo cat 
> /sys/kernel/debug/dri/0/amdgpu_firmware_info
> 
> VCE feature version: 0, firmware version: 0x00000000 UVD feature 
> version: 0, firmware version: 0x00000000 MC feature version: 0, firmware version:
> 0x00000000 ME feature version: 47, firmware version: 0x000000a2 PFP 
> feature version: 47, firmware version: 0x000000b9 CE feature version: 
> 47, firmware version: 0x0000004e RLC feature version: 1, firmware version:
> 0x00000213 RLC SRLC feature version: 1, firmware version: 0x00000001 
> RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS 
> feature
> version: 1, firmware version: 0x00000001 MEC feature version: 47, 
> firmware
> version: 0x000001ab
> MEC2 feature version: 47, firmware version: 0x000001ab SOS feature version:
> 0, firmware version: 0x00000000 ASD feature version: 0, firmware version:
> 0x21000013 TA XGMI feature version: 0, firmware version: 0x00000000 TA 
> RAS feature version: 0, firmware version: 0x00000000 SMC feature 
> version: 0, firmware version: 0x00001e5b
> SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature
> version: 0, firmware version: 0x0110901c DMCU feature version: 0, 
> firmware
> version: 0x00000000 VBIOS version: 113-RAVEN-116
> 
> 
> 
> 
> 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> Root Complex
> 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 IOMMU
> 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h 
> (Models
> 00h-1fh) PCIe Dummy Host Bridge
> 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> PCIe GPP Bridge [6:0]
> 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch 
> Upstream (PCIE SW.US)
> 00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> PCIe GPP Bridge [6:0]
> 00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch 
> Upstream (PCIE SW.US)
> 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h 
> (Models
> 00h-1fh) PCIe Dummy Host Bridge
> 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> Internal PCIe GPP Bridge 0 to Bus A
> 00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> Internal PCIe GPP Bridge 0 to Bus B
> 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller 
> (rev 61)
> 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge 
> (rev
> 51)
> 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> Device 24: Function 0
> 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> Device 24: Function 1
> 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> Device 24: Function 2
> 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> Device 24: Function 3
> 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> Device 24: Function 4
> 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> Device 24: Function 5
> 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> Device 24: Function 6
> 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> Device 24: Function 7
> 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0e)
> 01:00.1 Serial controller: Realtek Semiconductor Co., Ltd. Device 816a 
> (rev 0e)
> 01:00.2 Serial controller: Realtek Semiconductor Co., Ltd. Device 816b 
> (rev 0e)
> 01:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 816c 
> (rev 0e)
> 01:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 816d 
> (rev 0e)
> 02:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network 
> Connection (rev 03)
> 03:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 
> 6-Port/8- Lane Packet Switch
> 04:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 
> 6-Port/8- Lane Packet Switch
> 04:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 
> 6-Port/8- Lane Packet Switch
> 04:03.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 
> 6-Port/8- Lane Packet Switch
> 04:04.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 
> 6-Port/8- Lane Packet Switch
> 04:05.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 
> 6-Port/8- Lane Packet Switch
> 06:00.0 Serial controller: Asix Electronics Corporation Device 9100
> 06:00.1 Serial controller: Asix Electronics Corporation Device 9100
> 07:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network 
> Connection (rev 03)
> 0a:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network 
> Connection (rev 03)
> 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. 
> [AMD/ATI] Picasso (rev cf)
> 0b:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] 
> Raven/Raven2/Fenghuang HDMI/DP Audio Controller
> 0b:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] 
> Family 17h (Models 10h-1fh) Platform Security Processor
> 0b:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven2 USB 
> 3.1
> 0b:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] 
> Raven/Raven2/FireFlight/Renoir Audio Processor
> 0b:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc. 
> [AMD] Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver
> 0c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA 
> Controller [AHCI mode] (rev 61)
> 
> PCI Revision ID is 06 I believe. Got that from this lspci -xx
> 
> 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch 
> Upstream (PCIE SW.US)
> 00: 22 10 5d 14 07 04 10 00 00 00 04 06 10 00 81 00
> 10: 00 00 00 00 00 00 00 00 00 02 02 00 f1 01 00 00
> 20: e0 fc e0 fc f1 ff 01 00 00 00 00 00 00 00 00 00
> 30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 12 00
> 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 50: 01 58 03 c8 00 00 00 00 10 a0 42 01 22 80 00 00
> 60: 1f 29 00 00 13 38 73 03 42 00 11 30 00 00 04 00
> 70: 00 00 40 01 18 00 01 00 00 00 00 00 bf 01 70 00
> 80: 06 00 00 00 0e 00 00 00 03 00 01 00 00 00 00 00
> 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> a0: 05 c0 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00
> b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> c0: 0d c8 00 00 22 10 34 12 08 00 03 a8 00 00 00 00
> d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> e0: 00 00 00 00 4c 8a 05 00 00 00 00 00 00 00 00 00
> f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 
> -----Original Message-----
> From: Deucher, Alexander <Alexander.Deucher@amd.com>
> Sent: Dienstag, 24. November 2020 16:06
> To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; 
> Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; 
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> [AMD Public Use]
> 
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>
> > Sent: Tuesday, November 24, 2020 2:29 AM
> > To: Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux- 
> > pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas 
> > <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu,
> Changfeng
> > <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > Module Version : PiccasoCpu 10
> > AGESA Version   : PiccasoPI 100A
> >
> > I did not try to enter the system in any other way (like via ssh) 
> > than via Desktop.
> 
> You can get this information from the amdgpu driver.  E.g., sudo cat 
> /sys/kernel/debug/dri/0/amdgpu_firmware_info .  Also what is the PCI 
> revision id of your chip (from lspci)?  Also are you just seeing this 
> on specific versions of the sbios?
> 
> Thanks,
> 
> Alex
> 
> 
> >
> > -----Original Message-----
> > From: Huang Rui <ray.huang@amd.com>
> > Sent: Dienstag, 24. November 2020 07:43
> > To: Kuehling, Felix <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux- 
> > pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas 
> > <bhelgaas@google.com>; Merger, Edgar [AUTOSOL/MAS/AUGS] 
> > <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>;
> Changfeng
> > Zhu <changfeng.zhu@amd.com>
> > Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> broken
> >
> > On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> > > On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > > > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander wrote:
> > > >> [AMD Public Use]
> > > >>
> > > >>> -----Original Message-----
> > > >>> From: Will Deacon <will@kernel.org>
> > > >>> Sent: Monday, November 23, 2020 8:44 AM
> > > >>> To: linux-kernel@vger.kernel.org
> > > >>> Cc: linux-pci@vger.kernel.org; 
> > > >>> iommu@lists.linux-foundation.org; Will Deacon 
> > > >>> <will@kernel.org>; Bjorn Helgaas <bhelgaas@google.com>; 
> > > >>> Deucher, Alexander <Alexander.Deucher@amd.com>; Edgar Merger 
> > > >>> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
> > > >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > > >>>
> > > >>> Edgar Merger reports that the AMD Raven GPU does not work 
> > > >>> reliably on his system when the IOMMU is enabled:
> > > >>>
> > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > >>> timeout, signaled seq=1, emitted seq=3
> > > >>>    | [...]
> > > >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> > > >>>    | AMD-Vi: Completion-Wait loop timed out
> > > >>>    | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> > > >>> device=0b:00.0 address=0x38edc0970]
> > > >>>
> > > >>> This is indicative of a hardware/platform configuration issue 
> > > >>> so, since disabling ATS has been shown to resolve the problem, 
> > > >>> add a quirk to match this particular device while Edgar 
> > > >>> follows-up with AMD
> > for more information.
> > > >>>
> > > >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> > > >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> > > >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > > >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> > > >>> Link:
> > > >>>
> >
> https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.p
> rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Furld&d=DwIFAw&c=jOU
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP1
> 3_P6LVp7j_9l1xmg&m=ZhN0Jau6oCc4cnz64IhGK2-XDiD5D_6vW6ZYbifWYF0&s=ndvE-
> ezxTBweMMUjyMWdiCyPB6GDIS_eWs0kmZwqtpY&e=
> > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__nam11.safelinks.p&amp
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C1d797071822d47ce6
> c9808d8
> >
> 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
> 3633797
> >
> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> zIiLCJBTiI
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> sj6eMk3
> > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Furld&d=DwIFAw&c=jOU
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP1
> > 3_P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> udp1CLokf2QWuzFgE&s=ZLdz6
> > OgavzNn2vSzsgyL1IB6MbK7hPKavOYwbLhyTPU&e=
> > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> >
> 3A__lore%26d%3DDwIDAw%26c%3DjOURTkCZzT8tVB5xPEYIm3YJGoxoTaQs
> > QPzPKJGaWbo%26r%3DBJxhacqqa4K1PJGm6_-
> >
> 862rdSP13_P6LVp7j_9l1xmg%26m%3DlNXu2xwvyxEZ3PzoVmXMBXXS55jsmf
> >
> DicuQFJqkIOH4%26s%3D_5VDNCRQdA7AhsvvZ3TJJtQZ2iBp9c9tFHIleTYT_ZM
> >
> %26e%3D&amp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5f
> >
> a241f9634692c03908d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7
> >
> C0%7C0%7C637417997272974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi
> >
> MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C100
> >
> 0&amp;sdata=OEgYlw%2F1YP0C%2FnWBRQUxwBH56mGOJxYMWSQ%2Fj1Y
> > 9f6Q%3D&amp;reserved=0 .
> > > >>> kernel.org/linux-
> > > >>>
> > iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> > > >>> B1310.namprd10.prod.outlook.com
> > > >>>
> >
> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > > >>>
> >
> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > > >>>
> >
> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > > >>>
> >
> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > > >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > > >>> Signed-off-by: Will Deacon <will@kernel.org>
> > > >>> ---
> > > >>>
> > > >>> Hi all,
> > > >>>
> > > >>> Since Joerg is away at the moment, I'm posting this to try to 
> > > >>> make some progress with the thread in the Link: tag.
> > > >> + Felix
> > > >>
> > > >> What system is this?  Can you provide more details?  Does a 
> > > >> sbios update fix this?  Disabling ATS for all Ravens will break 
> > > >> GPU compute for a lot of people.  I'd prefer to just black list 
> > > >> this particular system (e.g., just SSIDs or revision) if possible.
> > >
> > > +Ray
> > >
> > > There are already many systems where the IOMMU is disabled in the 
> > > BIOS, or the CRAT table reporting the APU compute capabilities is 
> > > broken. Ray has been working on a fallback to make APUs behave 
> > > like dGPUs on such systems. That should also cover this case where 
> > > ATS is blacklisted. That said, it affects the programming model, 
> > > because we don't support the unified and coherent memory model on 
> > > dGPUs like we do on APUs with IOMMUv2. So it would be good to make 
> > > the conditions for this workaround as narrow as possible.
> >
> > Yes, besides the comments from Alex and Felix, may we get your 
> > firmware version (SMC firmware which is from SBIOS) and device id?
> >
> > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > >>> timeout, signaled seq=1, emitted seq=3
> >
> > It looks only gfx ib test passed, and fails to lanuch desktop, am I right?
> >
> > We would like to see whether it is Raven, Raven kicker (new Raven), 
> > or Picasso. In our side, per the internal test result, we didn't see 
> > the similiar issue on Raven kicker and Picasso platform.
> >
> > Thanks,
> > Ray
> >
> > >
> > > These are the relevant changes in KFD and Thunk for reference:
> > >
> > > ### KFD ###
> > >
> > > commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> > > Author: Huang Rui <ray.huang@amd.com>
> > > Date:   Tue Aug 18 14:54:23 2020 +0800
> > >
> > >      drm/amdkfd: implement the dGPU fallback path for apu (v6)
> > >
> > >      We still have a few iommu issues which need to address, so 
> > > force raven
> > >      as "dgpu" path for the moment.
> > >
> > >      This is to add the fallback path to bypass IOMMU if IOMMU v2 
> > > is disabled
> > >      or ACPI CRAT table not correct.
> > >
> > >      v2: Use ignore_crat parameter to decide whether it will go 
> > > with IOMMUv2.
> > >      v3: Align with existed thunk, don't change the way of raven, 
> > > only renoir
> > >          will use "dgpu" path by default.
> > >      v4: don't update global ignore_crat in the driver, and revise 
> > > fallback
> > >          function if CRAT is broken.
> > >      v5: refine acpi crat good but no iommu support case, and 
> > > rename the
> > >          title.
> > >      v6: fix the issue of dGPU initialized firstly, just modify 
> > > the report
> > >          value in the node_show().
> > >
> > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > >      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
> > >      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> > >
> > > ### Thunk ###
> > >
> > > commit e32482fa4b9ca398c8bdc303920abfd672592764
> > > Author: Huang Rui <ray.huang@amd.com>
> > > Date:   Tue Aug 18 18:54:05 2020 +0800
> > >
> > >      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> > >
> > >      Whether use dgpu path will check the props which exposed from
> kernel.
> > >      We won't need hard code in the ASIC table.
> > >
> > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > >      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> > >
> > > commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> > > Author: Huang Rui <ray.huang@amd.com>
> > > Date:   Thu Jul 30 10:22:23 2020 +0800
> > >
> > >      libhsakmt: implement the method that using flag which exposed 
> > > by kfd to configure is_dgpu
> > >
> > >      KFD already implemented the fallback path for APU. Thunk will 
> > > use flag
> > >      which exposed by kfd to configure is_dgpu instead of hardcode
> before.
> > >
> > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > >      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> > >
> > > Regards,
> > >    Felix
> > >
> > >
> > > > Cheers, Alex. I'll have to defer to Edgar for the details, as my 
> > > > understanding from the original thread over at:
> > > >
> > > >
> >
> https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.p
> rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Furld&d=DwIFAw&c=jOU
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP1
> 3_P6LVp7j_9l1xmg&m=ZhN0Jau6oCc4cnz64IhGK2-XDiD5D_6vW6ZYbifWYF0&s=ndvE-
> ezxTBweMMUjyMWdiCyPB6GDIS_eWs0kmZwqtpY&e=
> > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__nam11.safelinks.p&amp
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C1d797071822d47ce6
> c9808d8
> >
> 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
> 3633797
> >
> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> zIiLCJBTiI
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> sj6eMk3
> > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Fur&d=DwIFAw&c=jOURT
> > kCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP13_
> > P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> udp1CLokf2QWuzFgE&s=IPZRolk
> > y3TYlbWPsOkY37MbDdzwhc1b_LaE6JkaOkOo&e=
> > > > ldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > 3A__lore.kernel.org&a
> > > >
> >
> mp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5fa241f963469
> > 2c039
> > > >
> >
> 08d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63741
> > 79972
> > > >
> >
> 72974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> > V2luMzI
> > > >
> >
> iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=iKTPucGQqcRXET
> > QZiQz
> > > > j90WdJeCYDytdZHJ1ZiUyR%2FM%3D&amp;reserved=0
> > > > _linux-2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-
> > 40MWHPR10MB131
> > > >
> >
> 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3Y
> > JGoxo
> > > > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > 862rdSP13_P6LVp7j_9l1xmg&m=lNXu
> > > >
> >
> 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU
> > 60y21
> > > > ijWZmZ8xmOK1cO_O0&e=
> > > >
> > > > is that this is a board developed by his company.
> > > >
> > > > Edgar -- please can you answer Alex's questions?
> > > >
> > > > Will

RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Deucher, Alexander]

[AMD Public Use]

> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>
> Sent: Thursday, November 26, 2020 4:24 AM
> To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray
> <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-
> pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas
> <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng
> <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> broken
> 
> Alex,
> 
> This is pretty much the same patch as what I have received from Joerg
> previously, except that it is tied to the particular Emerson platform and its
> derivatives (listed with Subsystem IDs).

Right.  As per my original point, I don't want to disable ATS on all Picasso chips because doing so would break GPU compute on them, so I'd like to apply this quirk as narrowly as possible.

> 
> Below patch was what Joerg provided me and I successfully tested.
> 
> This diff to the kernel should do that:
> 
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index
> f70692ac79c5..3911b0ec57ba 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -5176,6 +5176,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI,
> 0x6900, quirk_amd_harvest_no_ats);
> DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312,
> quirk_amd_harvest_no_ats);
>  /* AMD Navi14 dGPU */
>  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340,
> quirk_amd_harvest_no_ats);
> +/* AMD Raven platform iGPU */
> +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8,
> +quirk_amd_harvest_no_ats);
>  #endif /* CONFIG_PCI_ATS */
> 
>  /* Freescale PCIe doesn't support MSI in RC mode */
> 
> So far I have seen this issue on two instances of this chip, but I must admit
> that I did test only two of them to this extent, so I guess it is not a bad chip in
> particular, but the chips we use are from the same production lot, so it might
> be a systematical problem of that production lot?
> 
> UEFI-Setup shows:
> Processor Family: 17h
> Procossor Model: 20h - 2Fh
> CPUID: 00820F01
> Microcode Patch Level: 8200103
> 
> Looking at the chip-die I found that this is a fully qualified IP Silicon (according
> to Ryzen Embedded R1000 SOC Interlock).
> YE1305C9T20FG
> BI2015SUY
> 9JB6496P00123
> 2016 AMD
> DIFFUSED IN USA
> MADE IN CHINA
> 
> Currently used SBIOS is a branch from "EmbeddedPI-FP5 1.2.0.3RC3".
> 
> In the future our SBIOS might merge with EmbeddedPI-FP5_1.2.0.5RC3.
> 

I think it's more likely an sbios issue, so hopefully the new release fixes it.

Alex

> 
> 
> 
> -----Original Message-----
> From: Deucher, Alexander <Alexander.Deucher@amd.com>
> Sent: Mittwoch, 25. November 2020 17:08
> To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>;
> Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix
> <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-
> pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas
> <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng
> <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> broken
> 
> [AMD Public Use]
> 
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>
> > Sent: Wednesday, November 25, 2020 5:04 AM
> > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray
> > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu,
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> > broken
> >
> > I do have also other problems with this unit, when IOMMU is enabled
> > and pci=noats is not set as kernel parameter.
> >
> > [ 2004.265906] amdgpu 0000:0b:00.0: [drm:amdgpu_ib_ring_tests
> > [amdgpu]]
> > *ERROR* IB test failed on gfx (-110).
> > [ 2004.266024] [drm:amdgpu_device_delayed_init_work_handler
> [amdgpu]]
> > *ERROR* ib ring test failed (-110).
> >
> 
> Is this seen on all instances of this chip or only specific silicon?  I.e., could this
> be a bad chip?  Would it be possible to test a newer sbios?  I think the
> attached patch should work if we can't get it fixed on the platform side.  It
> should only enable the quirk on your particular platform.
> 
> Alex
> 
> 
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > Sent: Mittwoch, 25. November 2020 10:16
> > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang, Ray'
> > <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
> > Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org'
> > <linux- kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org' <linux-
> > pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org'
> > <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas'
> > <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu,
> > Changfeng' <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> > broken
> >
> > Remark:
> >
> > Systems with R1305G APU (which show the issue) have the following VGA-
> > Controller:
> > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > [AMD/ATI] Picasso (rev cf)
> >
> > Systems with V1404I APU (which do not show the issue) have the
> > following
> > VGA-Controller:
> > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series]
> > (rev 83)
> >
> > "rev cf" vs. "ref 83" is probably what you where referring to with PCI
> > Revision ID.
> >
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > Sent: Mittwoch, 25. November 2020 07:05
> > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; Huang, Ray
> > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu,
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> > broken
> >
> > I see that problem only on systems that use a R1305G APU
> >
> > sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info
> >
> > shows
> >
> > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > version: 0, firmware version: 0x00000000 MC feature version: 0, firmware
> version:
> > 0x00000000 ME feature version: 50, firmware version: 0x000000a3 PFP
> > feature version: 50, firmware version: 0x000000bb CE feature version:
> > 50, firmware version: 0x0000004f RLC feature version: 1, firmware version:
> > 0x00000049 RLC SRLC feature version: 1, firmware version: 0x00000001
> > RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS
> > feature
> > version: 1, firmware version: 0x00000001 MEC feature version: 50,
> > firmware
> > version: 0x000001b5
> > MEC2 feature version: 50, firmware version: 0x000001b5 SOS feature
> version:
> > 0, firmware version: 0x00000000 ASD feature version: 0, firmware version:
> > 0x21000030 TA XGMI feature version: 0, firmware version: 0x00000000 TA
> > RAS feature version: 0, firmware version: 0x00000000 SMC feature
> > version: 0, firmware version: 0x00002527
> > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature
> > version: 0, firmware version: 0x0110901c DMCU feature version: 0,
> > firmware
> > version: 0x00000001 VBIOS version: 113-RAVEN2-117
> >
> > We are also using V1404I APU on the same boards and I haven´t seen the
> > issue on those boards
> >
> > These boards give me slightly different info: sudo cat
> > /sys/kernel/debug/dri/0/amdgpu_firmware_info
> >
> > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > version: 0, firmware version: 0x00000000 MC feature version: 0, firmware
> version:
> > 0x00000000 ME feature version: 47, firmware version: 0x000000a2 PFP
> > feature version: 47, firmware version: 0x000000b9 CE feature version:
> > 47, firmware version: 0x0000004e RLC feature version: 1, firmware version:
> > 0x00000213 RLC SRLC feature version: 1, firmware version: 0x00000001
> > RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS
> > feature
> > version: 1, firmware version: 0x00000001 MEC feature version: 47,
> > firmware
> > version: 0x000001ab
> > MEC2 feature version: 47, firmware version: 0x000001ab SOS feature
> version:
> > 0, firmware version: 0x00000000 ASD feature version: 0, firmware version:
> > 0x21000013 TA XGMI feature version: 0, firmware version: 0x00000000 TA
> > RAS feature version: 0, firmware version: 0x00000000 SMC feature
> > version: 0, firmware version: 0x00001e5b
> > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature
> > version: 0, firmware version: 0x0110901c DMCU feature version: 0,
> > firmware
> > version: 0x00000000 VBIOS version: 113-RAVEN-116
> >
> >
> >
> >
> > 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > Root Complex
> > 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> IOMMU
> > 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h
> > (Models
> > 00h-1fh) PCIe Dummy Host Bridge
> > 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > PCIe GPP Bridge [6:0]
> > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch
> > Upstream (PCIE SW.US)
> > 00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > PCIe GPP Bridge [6:0]
> > 00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch
> > Upstream (PCIE SW.US)
> > 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h
> > (Models
> > 00h-1fh) PCIe Dummy Host Bridge
> > 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > Internal PCIe GPP Bridge 0 to Bus A
> > 00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > Internal PCIe GPP Bridge 0 to Bus B
> > 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller
> > (rev 61)
> > 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge
> > (rev
> > 51)
> > 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > Device 24: Function 0
> > 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > Device 24: Function 1
> > 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > Device 24: Function 2
> > 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > Device 24: Function 3
> > 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > Device 24: Function 4
> > 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > Device 24: Function 5
> > 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > Device 24: Function 6
> > 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > Device 24: Function 7
> > 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> > RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0e)
> > 01:00.1 Serial controller: Realtek Semiconductor Co., Ltd. Device 816a
> > (rev 0e)
> > 01:00.2 Serial controller: Realtek Semiconductor Co., Ltd. Device 816b
> > (rev 0e)
> > 01:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 816c
> > (rev 0e)
> > 01:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 816d
> > (rev 0e)
> > 02:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network
> > Connection (rev 03)
> > 03:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:03.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:04.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:05.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 06:00.0 Serial controller: Asix Electronics Corporation Device 9100
> > 06:00.1 Serial controller: Asix Electronics Corporation Device 9100
> > 07:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network
> > Connection (rev 03)
> > 0a:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network
> > Connection (rev 03)
> > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > [AMD/ATI] Picasso (rev cf)
> > 0b:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI]
> > Raven/Raven2/Fenghuang HDMI/DP Audio Controller
> > 0b:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD]
> > Family 17h (Models 10h-1fh) Platform Security Processor
> > 0b:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven2 USB
> > 3.1
> > 0b:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD]
> > Raven/Raven2/FireFlight/Renoir Audio Processor
> > 0b:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc.
> > [AMD] Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver
> > 0c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA
> > Controller [AHCI mode] (rev 61)
> >
> > PCI Revision ID is 06 I believe. Got that from this lspci -xx
> >
> > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch
> > Upstream (PCIE SW.US)
> > 00: 22 10 5d 14 07 04 10 00 00 00 04 06 10 00 81 00
> > 10: 00 00 00 00 00 00 00 00 00 02 02 00 f1 01 00 00
> > 20: e0 fc e0 fc f1 ff 01 00 00 00 00 00 00 00 00 00
> > 30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 12 00
> > 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > 50: 01 58 03 c8 00 00 00 00 10 a0 42 01 22 80 00 00
> > 60: 1f 29 00 00 13 38 73 03 42 00 11 30 00 00 04 00
> > 70: 00 00 40 01 18 00 01 00 00 00 00 00 bf 01 70 00
> > 80: 06 00 00 00 0e 00 00 00 03 00 01 00 00 00 00 00
> > 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > a0: 05 c0 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00
> > b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > c0: 0d c8 00 00 22 10 34 12 08 00 03 a8 00 00 00 00
> > d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > e0: 00 00 00 00 4c 8a 05 00 00 00 00 00 00 00 00 00
> > f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> >
> > -----Original Message-----
> > From: Deucher, Alexander <Alexander.Deucher@amd.com>
> > Sent: Dienstag, 24. November 2020 16:06
> > To: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>;
> > Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix
> > <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu,
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> > broken
> >
> > [AMD Public Use]
> >
> > > -----Original Message-----
> > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > <Edgar.Merger@emerson.com>
> > > Sent: Tuesday, November 24, 2020 2:29 AM
> > > To: Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix
> > > <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander
> > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux-
> > > pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas
> > > <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu,
> > Changfeng
> > > <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> > > broken
> > >
> > > Module Version : PiccasoCpu 10
> > > AGESA Version   : PiccasoPI 100A
> > >
> > > I did not try to enter the system in any other way (like via ssh)
> > > than via Desktop.
> >
> > You can get this information from the amdgpu driver.  E.g., sudo cat
> > /sys/kernel/debug/dri/0/amdgpu_firmware_info .  Also what is the PCI
> > revision id of your chip (from lspci)?  Also are you just seeing this
> > on specific versions of the sbios?
> >
> > Thanks,
> >
> > Alex
> >
> >
> > >
> > > -----Original Message-----
> > > From: Huang Rui <ray.huang@amd.com>
> > > Sent: Dienstag, 24. November 2020 07:43
> > > To: Kuehling, Felix <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander
> > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux-
> > > pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas
> > > <bhelgaas@google.com>; Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>;
> > Changfeng
> > > Zhu <changfeng.zhu@amd.com>
> > > Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> > broken
> > >
> > > On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> > > > On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > > > > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander
> wrote:
> > > > >> [AMD Public Use]
> > > > >>
> > > > >>> -----Original Message-----
> > > > >>> From: Will Deacon <will@kernel.org>
> > > > >>> Sent: Monday, November 23, 2020 8:44 AM
> > > > >>> To: linux-kernel@vger.kernel.org
> > > > >>> Cc: linux-pci@vger.kernel.org;
> > > > >>> iommu@lists.linux-foundation.org; Will Deacon
> > > > >>> <will@kernel.org>; Bjorn Helgaas <bhelgaas@google.com>;
> > > > >>> Deucher, Alexander <Alexander.Deucher@amd.com>; Edgar
> Merger
> > > > >>> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
> > > > >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > > > >>>
> > > > >>> Edgar Merger reports that the AMD Raven GPU does not work
> > > > >>> reliably on his system when the IOMMU is enabled:
> > > > >>>
> > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx
> > > > >>> timeout, signaled seq=1, emitted seq=3
> > > > >>>    | [...]
> > > > >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> > > > >>>    | AMD-Vi: Completion-Wait loop timed out
> > > > >>>    | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> > > > >>> device=0b:00.0 address=0x38edc0970]
> > > > >>>
> > > > >>> This is indicative of a hardware/platform configuration issue
> > > > >>> so, since disabling ATS has been shown to resolve the problem,
> > > > >>> add a quirk to match this particular device while Edgar
> > > > >>> follows-up with AMD
> > > for more information.
> > > > >>>
> > > > >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> > > > >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> > > > >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > > > >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> > > > >>> Link:
> > > > >>>
> > >
> >
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Furld
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> 3A__nam11.safelinks.p&amp;data=04%7C01%7CAlexander.Deucher%40amd
> .com%7C9194a443d95c4ffcb7f708d891ed0889%7C3dd8961fe4884e608e11a82
> d994e183d%7C0%7C1%7C637419794843309283%7CUnknown%7CTWFpbGZsb
> 3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0
> %3D%7C1000&amp;sdata=4JGSwn7au4u%2FBB69mmq0%2BrWfVG12sEyd5H
> oBUeiut9o%3D&amp;reserved=0
> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Furld&d=DwIFAw&c=jOU
> >
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> > ezxTBweMMUjyMWdiCyPB6GDIS_eWs0kmZwqtpY&e=
> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > 3A__nam11.safelinks.p&amp
> > >
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C1d797071822d47ce6
> > c9808d8
> > >
> >
> 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
> > 3633797
> > >
> >
> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> > zIiLCJBTiI
> > >
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> > sj6eMk3
> > > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > 252Furld&d=DwIFAw&c=jOU
> > >
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > 862rdSP1
> > > 3_P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> > udp1CLokf2QWuzFgE&s=ZLdz6
> > > OgavzNn2vSzsgyL1IB6MbK7hPKavOYwbLhyTPU&e=
> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > >
> >
> 3A__lore%26d%3DDwIDAw%26c%3DjOURTkCZzT8tVB5xPEYIm3YJGoxoTaQs
> > > QPzPKJGaWbo%26r%3DBJxhacqqa4K1PJGm6_-
> > >
> >
> 862rdSP13_P6LVp7j_9l1xmg%26m%3DlNXu2xwvyxEZ3PzoVmXMBXXS55jsmf
> > >
> >
> DicuQFJqkIOH4%26s%3D_5VDNCRQdA7AhsvvZ3TJJtQZ2iBp9c9tFHIleTYT_ZM
> > >
> >
> %26e%3D&amp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5f
> > >
> >
> a241f9634692c03908d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7
> > >
> >
> C0%7C0%7C637417997272974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi
> > >
> >
> MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C100
> > >
> >
> 0&amp;sdata=OEgYlw%2F1YP0C%2FnWBRQUxwBH56mGOJxYMWSQ%2Fj1Y
> > > 9f6Q%3D&amp;reserved=0 .
> > > > >>> kernel.org/linux-
> > > > >>>
> > > iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> > > > >>> B1310.namprd10.prod.outlook.com
> > > > >>>
> > >
> >
> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > > > >>>
> > >
> >
> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > > > >>>
> > >
> >
> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > > > >>>
> > >
> >
> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > > > >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > > > >>> Signed-off-by: Will Deacon <will@kernel.org>
> > > > >>> ---
> > > > >>>
> > > > >>> Hi all,
> > > > >>>
> > > > >>> Since Joerg is away at the moment, I'm posting this to try to
> > > > >>> make some progress with the thread in the Link: tag.
> > > > >> + Felix
> > > > >>
> > > > >> What system is this?  Can you provide more details?  Does a
> > > > >> sbios update fix this?  Disabling ATS for all Ravens will break
> > > > >> GPU compute for a lot of people.  I'd prefer to just black list
> > > > >> this particular system (e.g., just SSIDs or revision) if possible.
> > > >
> > > > +Ray
> > > >
> > > > There are already many systems where the IOMMU is disabled in the
> > > > BIOS, or the CRAT table reporting the APU compute capabilities is
> > > > broken. Ray has been working on a fallback to make APUs behave
> > > > like dGPUs on such systems. That should also cover this case where
> > > > ATS is blacklisted. That said, it affects the programming model,
> > > > because we don't support the unified and coherent memory model on
> > > > dGPUs like we do on APUs with IOMMUv2. So it would be good to
> make
> > > > the conditions for this workaround as narrow as possible.
> > >
> > > Yes, besides the comments from Alex and Felix, may we get your
> > > firmware version (SMC firmware which is from SBIOS) and device id?
> > >
> > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx
> > > > >>> timeout, signaled seq=1, emitted seq=3
> > >
> > > It looks only gfx ib test passed, and fails to lanuch desktop, am I right?
> > >
> > > We would like to see whether it is Raven, Raven kicker (new Raven),
> > > or Picasso. In our side, per the internal test result, we didn't see
> > > the similiar issue on Raven kicker and Picasso platform.
> > >
> > > Thanks,
> > > Ray
> > >
> > > >
> > > > These are the relevant changes in KFD and Thunk for reference:
> > > >
> > > > ### KFD ###
> > > >
> > > > commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> > > > Author: Huang Rui <ray.huang@amd.com>
> > > > Date:   Tue Aug 18 14:54:23 2020 +0800
> > > >
> > > >      drm/amdkfd: implement the dGPU fallback path for apu (v6)
> > > >
> > > >      We still have a few iommu issues which need to address, so
> > > > force raven
> > > >      as "dgpu" path for the moment.
> > > >
> > > >      This is to add the fallback path to bypass IOMMU if IOMMU v2
> > > > is disabled
> > > >      or ACPI CRAT table not correct.
> > > >
> > > >      v2: Use ignore_crat parameter to decide whether it will go
> > > > with IOMMUv2.
> > > >      v3: Align with existed thunk, don't change the way of raven,
> > > > only renoir
> > > >          will use "dgpu" path by default.
> > > >      v4: don't update global ignore_crat in the driver, and revise
> > > > fallback
> > > >          function if CRAT is broken.
> > > >      v5: refine acpi crat good but no iommu support case, and
> > > > rename the
> > > >          title.
> > > >      v6: fix the issue of dGPU initialized firstly, just modify
> > > > the report
> > > >          value in the node_show().
> > > >
> > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > >      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
> > > >      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> > > >
> > > > ### Thunk ###
> > > >
> > > > commit e32482fa4b9ca398c8bdc303920abfd672592764
> > > > Author: Huang Rui <ray.huang@amd.com>
> > > > Date:   Tue Aug 18 18:54:05 2020 +0800
> > > >
> > > >      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> > > >
> > > >      Whether use dgpu path will check the props which exposed from
> > kernel.
> > > >      We won't need hard code in the ASIC table.
> > > >
> > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > >      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> > > >
> > > > commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> > > > Author: Huang Rui <ray.huang@amd.com>
> > > > Date:   Thu Jul 30 10:22:23 2020 +0800
> > > >
> > > >      libhsakmt: implement the method that using flag which exposed
> > > > by kfd to configure is_dgpu
> > > >
> > > >      KFD already implemented the fallback path for APU. Thunk will
> > > > use flag
> > > >      which exposed by kfd to configure is_dgpu instead of hardcode
> > before.
> > > >
> > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > >      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> > > >
> > > > Regards,
> > > >    Felix
> > > >
> > > >
> > > > > Cheers, Alex. I'll have to defer to Edgar for the details, as my
> > > > > understanding from the original thread over at:
> > > > >
> > > > >
> > >
> >
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Furld
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> 3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0
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> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > 3A__nam11.safelinks.p&amp
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> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> > sj6eMk3
> > > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > 252Fur&d=DwIFAw&c=jOURT
> > >
> kCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > 862rdSP13_
> > > P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> > udp1CLokf2QWuzFgE&s=IPZRolk
> > > y3TYlbWPsOkY37MbDdzwhc1b_LaE6JkaOkOo&e=
> > > > > ldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > 3A__lore.kernel.org&a
> > > > >
> > >
> >
> mp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5fa241f963469
> > > 2c039
> > > > >
> > >
> >
> 08d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63741
> > > 79972
> > > > >
> > >
> >
> 72974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> > > V2luMzI
> > > > >
> > >
> >
> iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=iKTPucGQqcRXET
> > > QZiQz
> > > > > j90WdJeCYDytdZHJ1ZiUyR%2FM%3D&amp;reserved=0
> > > > > _linux-2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-
> > > 40MWHPR10MB131
> > > > >
> > >
> >
> 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3Y
> > > JGoxo
> > > > > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > 862rdSP13_P6LVp7j_9l1xmg&m=lNXu
> > > > >
> > >
> >
> 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU
> > > 60y21
> > > > > ijWZmZ8xmOK1cO_O0&e=
> > > > >
> > > > > is that this is a board developed by his company.
> > > > >
> > > > > Edgar -- please can you answer Alex's questions?
> > > > >
> > > > > Will

RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Merger, Edgar [AUTOSOL/MAS/AUGS]]

Hi Alex,

I believe in the patch file, this
+		    (pdev->subsystem_device == 0x0c19 ||
+		     pdev->subsystem_device == 0x0c10))

Has to be changed to:
+		    (pdev->subsystem_device == 0xce19 ||
+		     pdev->subsystem_device == 0xcc10))

Because our SSIDs are "ea50:ce19" and "ea50:cc10" respectively and another one would "ea50:cc08". 

I will apply that patch and feedback the results soon plus the patch file that I actually had applied.


-----Original Message-----
From: Deucher, Alexander <Alexander.Deucher@amd.com> 
Sent: Montag, 30. November 2020 19:36
To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[AMD Public Use]

> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>
> Sent: Thursday, November 26, 2020 4:24 AM
> To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; 
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> Alex,
> 
> This is pretty much the same patch as what I have received from Joerg 
> previously, except that it is tied to the particular Emerson platform 
> and its derivatives (listed with Subsystem IDs).

Right.  As per my original point, I don't want to disable ATS on all Picasso chips because doing so would break GPU compute on them, so I'd like to apply this quirk as narrowly as possible.

> 
> Below patch was what Joerg provided me and I successfully tested.
> 
> This diff to the kernel should do that:
> 
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 
> f70692ac79c5..3911b0ec57ba 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -5176,6 +5176,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI,
> 0x6900, quirk_amd_harvest_no_ats);
> DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, 
> quirk_amd_harvest_no_ats);
>  /* AMD Navi14 dGPU */
>  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, 
> quirk_amd_harvest_no_ats);
> +/* AMD Raven platform iGPU */
> +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, 
> +quirk_amd_harvest_no_ats);
>  #endif /* CONFIG_PCI_ATS */
> 
>  /* Freescale PCIe doesn't support MSI in RC mode */
> 
> So far I have seen this issue on two instances of this chip, but I 
> must admit that I did test only two of them to this extent, so I guess 
> it is not a bad chip in particular, but the chips we use are from the 
> same production lot, so it might be a systematical problem of that production lot?
> 
> UEFI-Setup shows:
> Processor Family: 17h
> Procossor Model: 20h - 2Fh
> CPUID: 00820F01
> Microcode Patch Level: 8200103
> 
> Looking at the chip-die I found that this is a fully qualified IP 
> Silicon (according to Ryzen Embedded R1000 SOC Interlock).
> YE1305C9T20FG
> BI2015SUY
> 9JB6496P00123
> 2016 AMD
> DIFFUSED IN USA
> MADE IN CHINA
> 
> Currently used SBIOS is a branch from "EmbeddedPI-FP5 1.2.0.3RC3".
> 
> In the future our SBIOS might merge with EmbeddedPI-FP5_1.2.0.5RC3.
> 

I think it's more likely an sbios issue, so hopefully the new release fixes it.

Alex

> 
> 
> 
> -----Original Message-----
> From: Deucher, Alexander <Alexander.Deucher@amd.com>
> Sent: Mittwoch, 25. November 2020 17:08
> To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; 
> Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; 
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> [AMD Public Use]
> 
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>
> > Sent: Wednesday, November 25, 2020 5:04 AM
> > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > I do have also other problems with this unit, when IOMMU is enabled 
> > and pci=noats is not set as kernel parameter.
> >
> > [ 2004.265906] amdgpu 0000:0b:00.0: [drm:amdgpu_ib_ring_tests 
> > [amdgpu]]
> > *ERROR* IB test failed on gfx (-110).
> > [ 2004.266024] [drm:amdgpu_device_delayed_init_work_handler
> [amdgpu]]
> > *ERROR* ib ring test failed (-110).
> >
> 
> Is this seen on all instances of this chip or only specific silicon?  
> I.e., could this be a bad chip?  Would it be possible to test a newer 
> sbios?  I think the attached patch should work if we can't get it 
> fixed on the platform side.  It should only enable the quirk on your particular platform.
> 
> Alex
> 
> 
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > Sent: Mittwoch, 25. November 2020 10:16
> > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang, Ray'
> > <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
> > Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org'
> > <linux- kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org' <linux- 
> > pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org'
> > <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas'
> > <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu, 
> > Changfeng' <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > Remark:
> >
> > Systems with R1305G APU (which show the issue) have the following 
> > VGA-
> > Controller:
> > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > [AMD/ATI] Picasso (rev cf)
> >
> > Systems with V1404I APU (which do not show the issue) have the 
> > following
> > VGA-Controller:
> > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile 
> > Series] (rev 83)
> >
> > "rev cf" vs. "ref 83" is probably what you where referring to with 
> > PCI Revision ID.
> >
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > Sent: Mittwoch, 25. November 2020 07:05
> > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; Huang, Ray 
> > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > I see that problem only on systems that use a R1305G APU
> >
> > sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info
> >
> > shows
> >
> > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > version: 0, firmware version: 0x00000000 MC feature version: 0, 
> > firmware
> version:
> > 0x00000000 ME feature version: 50, firmware version: 0x000000a3 PFP 
> > feature version: 50, firmware version: 0x000000bb CE feature version:
> > 50, firmware version: 0x0000004f RLC feature version: 1, firmware version:
> > 0x00000049 RLC SRLC feature version: 1, firmware version: 0x00000001 
> > RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS 
> > feature
> > version: 1, firmware version: 0x00000001 MEC feature version: 50, 
> > firmware
> > version: 0x000001b5
> > MEC2 feature version: 50, firmware version: 0x000001b5 SOS feature
> version:
> > 0, firmware version: 0x00000000 ASD feature version: 0, firmware version:
> > 0x21000030 TA XGMI feature version: 0, firmware version: 0x00000000 
> > TA RAS feature version: 0, firmware version: 0x00000000 SMC feature
> > version: 0, firmware version: 0x00002527
> > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature
> > version: 0, firmware version: 0x0110901c DMCU feature version: 0, 
> > firmware
> > version: 0x00000001 VBIOS version: 113-RAVEN2-117
> >
> > We are also using V1404I APU on the same boards and I haven´t seen 
> > the issue on those boards
> >
> > These boards give me slightly different info: sudo cat 
> > /sys/kernel/debug/dri/0/amdgpu_firmware_info
> >
> > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > version: 0, firmware version: 0x00000000 MC feature version: 0, 
> > firmware
> version:
> > 0x00000000 ME feature version: 47, firmware version: 0x000000a2 PFP 
> > feature version: 47, firmware version: 0x000000b9 CE feature version:
> > 47, firmware version: 0x0000004e RLC feature version: 1, firmware version:
> > 0x00000213 RLC SRLC feature version: 1, firmware version: 0x00000001 
> > RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS 
> > feature
> > version: 1, firmware version: 0x00000001 MEC feature version: 47, 
> > firmware
> > version: 0x000001ab
> > MEC2 feature version: 47, firmware version: 0x000001ab SOS feature
> version:
> > 0, firmware version: 0x00000000 ASD feature version: 0, firmware version:
> > 0x21000013 TA XGMI feature version: 0, firmware version: 0x00000000 
> > TA RAS feature version: 0, firmware version: 0x00000000 SMC feature
> > version: 0, firmware version: 0x00001e5b
> > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature
> > version: 0, firmware version: 0x0110901c DMCU feature version: 0, 
> > firmware
> > version: 0x00000000 VBIOS version: 113-RAVEN-116
> >
> >
> >
> >
> > 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Root Complex
> > 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> IOMMU
> > 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h 
> > (Models
> > 00h-1fh) PCIe Dummy Host Bridge
> > 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > PCIe GPP Bridge [6:0]
> > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > Switch Upstream (PCIE SW.US)
> > 00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > PCIe GPP Bridge [6:0]
> > 00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > Switch Upstream (PCIE SW.US)
> > 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h 
> > (Models
> > 00h-1fh) PCIe Dummy Host Bridge
> > 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Internal PCIe GPP Bridge 0 to Bus A
> > 00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Internal PCIe GPP Bridge 0 to Bus B
> > 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus 
> > Controller (rev 61)
> > 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC 
> > Bridge (rev
> > 51)
> > 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 0
> > 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 1
> > 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 2
> > 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 3
> > 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 4
> > 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 5
> > 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 6
> > 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 7
> > 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> > RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0e)
> > 01:00.1 Serial controller: Realtek Semiconductor Co., Ltd. Device 
> > 816a (rev 0e)
> > 01:00.2 Serial controller: Realtek Semiconductor Co., Ltd. Device 
> > 816b (rev 0e)
> > 01:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 816c 
> > (rev 0e)
> > 01:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 816d 
> > (rev 0e)
> > 02:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network 
> > Connection (rev 03)
> > 03:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:03.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:04.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:05.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 06:00.0 Serial controller: Asix Electronics Corporation Device 9100
> > 06:00.1 Serial controller: Asix Electronics Corporation Device 9100
> > 07:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network 
> > Connection (rev 03)
> > 0a:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network 
> > Connection (rev 03)
> > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > [AMD/ATI] Picasso (rev cf)
> > 0b:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] 
> > Raven/Raven2/Fenghuang HDMI/DP Audio Controller
> > 0b:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] 
> > Family 17h (Models 10h-1fh) Platform Security Processor
> > 0b:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven2 
> > USB
> > 3.1
> > 0b:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] 
> > Raven/Raven2/FireFlight/Renoir Audio Processor
> > 0b:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc.
> > [AMD] Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver
> > 0c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA 
> > Controller [AHCI mode] (rev 61)
> >
> > PCI Revision ID is 06 I believe. Got that from this lspci -xx
> >
> > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > Switch Upstream (PCIE SW.US)
> > 00: 22 10 5d 14 07 04 10 00 00 00 04 06 10 00 81 00
> > 10: 00 00 00 00 00 00 00 00 00 02 02 00 f1 01 00 00
> > 20: e0 fc e0 fc f1 ff 01 00 00 00 00 00 00 00 00 00
> > 30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 12 00
> > 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > 50: 01 58 03 c8 00 00 00 00 10 a0 42 01 22 80 00 00
> > 60: 1f 29 00 00 13 38 73 03 42 00 11 30 00 00 04 00
> > 70: 00 00 40 01 18 00 01 00 00 00 00 00 bf 01 70 00
> > 80: 06 00 00 00 0e 00 00 00 03 00 01 00 00 00 00 00
> > 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > a0: 05 c0 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00
> > b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > c0: 0d c8 00 00 22 10 34 12 08 00 03 a8 00 00 00 00
> > d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > e0: 00 00 00 00 4c 8a 05 00 00 00 00 00 00 00 00 00
> > f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> >
> > -----Original Message-----
> > From: Deucher, Alexander <Alexander.Deucher@amd.com>
> > Sent: Dienstag, 24. November 2020 16:06
> > To: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>;
> > Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > [AMD Public Use]
> >
> > > -----Original Message-----
> > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > <Edgar.Merger@emerson.com>
> > > Sent: Tuesday, November 24, 2020 2:29 AM
> > > To: Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > > <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux- 
> > > pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; 
> > > Zhu,
> > Changfeng
> > > <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > as broken
> > >
> > > Module Version : PiccasoCpu 10
> > > AGESA Version   : PiccasoPI 100A
> > >
> > > I did not try to enter the system in any other way (like via ssh) 
> > > than via Desktop.
> >
> > You can get this information from the amdgpu driver.  E.g., sudo cat 
> > /sys/kernel/debug/dri/0/amdgpu_firmware_info .  Also what is the PCI 
> > revision id of your chip (from lspci)?  Also are you just seeing 
> > this on specific versions of the sbios?
> >
> > Thanks,
> >
> > Alex
> >
> >
> > >
> > > -----Original Message-----
> > > From: Huang Rui <ray.huang@amd.com>
> > > Sent: Dienstag, 24. November 2020 07:43
> > > To: Kuehling, Felix <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux- 
> > > pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > > Helgaas <bhelgaas@google.com>; Merger, Edgar [AUTOSOL/MAS/AUGS] 
> > > <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>;
> > Changfeng
> > > Zhu <changfeng.zhu@amd.com>
> > > Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> > broken
> > >
> > > On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> > > > On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > > > > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander
> wrote:
> > > > >> [AMD Public Use]
> > > > >>
> > > > >>> -----Original Message-----
> > > > >>> From: Will Deacon <will@kernel.org>
> > > > >>> Sent: Monday, November 23, 2020 8:44 AM
> > > > >>> To: linux-kernel@vger.kernel.org
> > > > >>> Cc: linux-pci@vger.kernel.org; 
> > > > >>> iommu@lists.linux-foundation.org; Will Deacon 
> > > > >>> <will@kernel.org>; Bjorn Helgaas <bhelgaas@google.com>; 
> > > > >>> Deucher, Alexander <Alexander.Deucher@amd.com>; Edgar
> Merger
> > > > >>> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
> > > > >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > > > >>>
> > > > >>> Edgar Merger reports that the AMD Raven GPU does not work 
> > > > >>> reliably on his system when the IOMMU is enabled:
> > > > >>>
> > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > > >>> timeout, signaled seq=1, emitted seq=3
> > > > >>>    | [...]
> > > > >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> > > > >>>    | AMD-Vi: Completion-Wait loop timed out
> > > > >>>    | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> > > > >>> device=0b:00.0 address=0x38edc0970]
> > > > >>>
> > > > >>> This is indicative of a hardware/platform configuration 
> > > > >>> issue so, since disabling ATS has been shown to resolve the 
> > > > >>> problem, add a quirk to match this particular device while 
> > > > >>> Edgar follows-up with AMD
> > > for more information.
> > > > >>>
> > > > >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> > > > >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> > > > >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > > > >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> > > > >>> Link:
> > > > >>>
> > >
> >
> https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.p
> rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Furld&d=DwIFAw&c=jOU
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP1
> 3_P6LVp7j_9l1xmg&m=BIpm40CYGVSJNrmoqPI4DeIayU0tYU2D5NpRwfbkZvA&s=tmsZ3
> ihrSXZ3g6wdJ2maxU9mJ1TGcRxd91z9IQTP00A&e=
> efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__nam11.safelinks.p&amp;data=04%7C01%7CAlexander.Deucher%40amd
> .com%7C9194a443d95c4ffcb7f708d891ed0889%7C3dd8961fe4884e608e11a82
> d994e183d%7C0%7C1%7C637419794843309283%7CUnknown%7CTWFpbGZsb
> 3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0
> %3D%7C1000&amp;sdata=4JGSwn7au4u%2FBB69mmq0%2BrWfVG12sEyd5H
> oBUeiut9o%3D&amp;reserved=0
> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Furld&d=DwIFAw&c=jOU
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP1
> > 3_P6LVp7j_9l1xmg&m=ZhN0Jau6oCc4cnz64IhGK2-
> XDiD5D_6vW6ZYbifWYF0&s=ndvE-
> > ezxTBweMMUjyMWdiCyPB6GDIS_eWs0kmZwqtpY&e=
> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > 3A__nam11.safelinks.p&amp
> > >
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C1d797071822d47ce6
> > c9808d8
> > >
> >
> 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
> > 3633797
> > >
> >
> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> > zIiLCJBTiI
> > >
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> > sj6eMk3
> > > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > 252Furld&d=DwIFAw&c=jOU
> > >
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > 862rdSP1
> > > 3_P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> > udp1CLokf2QWuzFgE&s=ZLdz6
> > > OgavzNn2vSzsgyL1IB6MbK7hPKavOYwbLhyTPU&e=
> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > >
> >
> 3A__lore%26d%3DDwIDAw%26c%3DjOURTkCZzT8tVB5xPEYIm3YJGoxoTaQs
> > > QPzPKJGaWbo%26r%3DBJxhacqqa4K1PJGm6_-
> > >
> >
> 862rdSP13_P6LVp7j_9l1xmg%26m%3DlNXu2xwvyxEZ3PzoVmXMBXXS55jsmf
> > >
> >
> DicuQFJqkIOH4%26s%3D_5VDNCRQdA7AhsvvZ3TJJtQZ2iBp9c9tFHIleTYT_ZM
> > >
> >
> %26e%3D&amp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5f
> > >
> >
> a241f9634692c03908d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7
> > >
> >
> C0%7C0%7C637417997272974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi
> > >
> >
> MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C100
> > >
> >
> 0&amp;sdata=OEgYlw%2F1YP0C%2FnWBRQUxwBH56mGOJxYMWSQ%2Fj1Y
> > > 9f6Q%3D&amp;reserved=0 .
> > > > >>> kernel.org/linux-
> > > > >>>
> > > iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> > > > >>> B1310.namprd10.prod.outlook.com
> > > > >>>
> > >
> >
> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > > > >>>
> > >
> >
> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > > > >>>
> > >
> >
> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > > > >>>
> > >
> >
> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > > > >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > > > >>> Signed-off-by: Will Deacon <will@kernel.org>
> > > > >>> ---
> > > > >>>
> > > > >>> Hi all,
> > > > >>>
> > > > >>> Since Joerg is away at the moment, I'm posting this to try 
> > > > >>> to make some progress with the thread in the Link: tag.
> > > > >> + Felix
> > > > >>
> > > > >> What system is this?  Can you provide more details?  Does a 
> > > > >> sbios update fix this?  Disabling ATS for all Ravens will 
> > > > >> break GPU compute for a lot of people.  I'd prefer to just 
> > > > >> black list this particular system (e.g., just SSIDs or revision) if possible.
> > > >
> > > > +Ray
> > > >
> > > > There are already many systems where the IOMMU is disabled in 
> > > > the BIOS, or the CRAT table reporting the APU compute 
> > > > capabilities is broken. Ray has been working on a fallback to 
> > > > make APUs behave like dGPUs on such systems. That should also 
> > > > cover this case where ATS is blacklisted. That said, it affects 
> > > > the programming model, because we don't support the unified and 
> > > > coherent memory model on dGPUs like we do on APUs with IOMMUv2. 
> > > > So it would be good to
> make
> > > > the conditions for this workaround as narrow as possible.
> > >
> > > Yes, besides the comments from Alex and Felix, may we get your 
> > > firmware version (SMC firmware which is from SBIOS) and device id?
> > >
> > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > > >>> timeout, signaled seq=1, emitted seq=3
> > >
> > > It looks only gfx ib test passed, and fails to lanuch desktop, am I right?
> > >
> > > We would like to see whether it is Raven, Raven kicker (new 
> > > Raven), or Picasso. In our side, per the internal test result, we 
> > > didn't see the similiar issue on Raven kicker and Picasso platform.
> > >
> > > Thanks,
> > > Ray
> > >
> > > >
> > > > These are the relevant changes in KFD and Thunk for reference:
> > > >
> > > > ### KFD ###
> > > >
> > > > commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> > > > Author: Huang Rui <ray.huang@amd.com>
> > > > Date:   Tue Aug 18 14:54:23 2020 +0800
> > > >
> > > >      drm/amdkfd: implement the dGPU fallback path for apu (v6)
> > > >
> > > >      We still have a few iommu issues which need to address, so 
> > > > force raven
> > > >      as "dgpu" path for the moment.
> > > >
> > > >      This is to add the fallback path to bypass IOMMU if IOMMU 
> > > > v2 is disabled
> > > >      or ACPI CRAT table not correct.
> > > >
> > > >      v2: Use ignore_crat parameter to decide whether it will go 
> > > > with IOMMUv2.
> > > >      v3: Align with existed thunk, don't change the way of 
> > > > raven, only renoir
> > > >          will use "dgpu" path by default.
> > > >      v4: don't update global ignore_crat in the driver, and 
> > > > revise fallback
> > > >          function if CRAT is broken.
> > > >      v5: refine acpi crat good but no iommu support case, and 
> > > > rename the
> > > >          title.
> > > >      v6: fix the issue of dGPU initialized firstly, just modify 
> > > > the report
> > > >          value in the node_show().
> > > >
> > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > >      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
> > > >      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> > > >
> > > > ### Thunk ###
> > > >
> > > > commit e32482fa4b9ca398c8bdc303920abfd672592764
> > > > Author: Huang Rui <ray.huang@amd.com>
> > > > Date:   Tue Aug 18 18:54:05 2020 +0800
> > > >
> > > >      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> > > >
> > > >      Whether use dgpu path will check the props which exposed 
> > > > from
> > kernel.
> > > >      We won't need hard code in the ASIC table.
> > > >
> > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > >      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> > > >
> > > > commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> > > > Author: Huang Rui <ray.huang@amd.com>
> > > > Date:   Thu Jul 30 10:22:23 2020 +0800
> > > >
> > > >      libhsakmt: implement the method that using flag which 
> > > > exposed by kfd to configure is_dgpu
> > > >
> > > >      KFD already implemented the fallback path for APU. Thunk 
> > > > will use flag
> > > >      which exposed by kfd to configure is_dgpu instead of 
> > > > hardcode
> > before.
> > > >
> > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > >      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> > > >
> > > > Regards,
> > > >    Felix
> > > >
> > > >
> > > > > Cheers, Alex. I'll have to defer to Edgar for the details, as 
> > > > > my understanding from the original thread over at:
> > > > >
> > > > >
> > >
> >
> https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.p
> rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Furld&d=DwIFAw&c=jOU
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP1
> 3_P6LVp7j_9l1xmg&m=BIpm40CYGVSJNrmoqPI4DeIayU0tYU2D5NpRwfbkZvA&s=tmsZ3
> ihrSXZ3g6wdJ2maxU9mJ1TGcRxd91z9IQTP00A&e=
> efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__nam11.safelinks.p&amp;data=04%7C01%7CAlexander.Deucher%40amd
> .com%7C9194a443d95c4ffcb7f708d891ed0889%7C3dd8961fe4884e608e11a82
> d994e183d%7C0%7C1%7C637419794843309283%7CUnknown%7CTWFpbGZsb
> 3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0
> %3D%7C1000&amp;sdata=4JGSwn7au4u%2FBB69mmq0%2BrWfVG12sEyd5H
> oBUeiut9o%3D&amp;reserved=0
> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Furld&d=DwIFAw&c=jOU
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP1
> > 3_P6LVp7j_9l1xmg&m=ZhN0Jau6oCc4cnz64IhGK2-
> XDiD5D_6vW6ZYbifWYF0&s=ndvE-
> > ezxTBweMMUjyMWdiCyPB6GDIS_eWs0kmZwqtpY&e=
> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > 3A__nam11.safelinks.p&amp
> > >
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C1d797071822d47ce6
> > c9808d8
> > >
> >
> 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
> > 3633797
> > >
> >
> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> > zIiLCJBTiI
> > >
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> > sj6eMk3
> > > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > 252Fur&d=DwIFAw&c=jOURT
> > >
> kCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > 862rdSP13_
> > > P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> > udp1CLokf2QWuzFgE&s=IPZRolk
> > > y3TYlbWPsOkY37MbDdzwhc1b_LaE6JkaOkOo&e=
> > > > > ldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > 3A__lore.kernel.org&a
> > > > >
> > >
> >
> mp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5fa241f963469
> > > 2c039
> > > > >
> > >
> >
> 08d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63741
> > > 79972
> > > > >
> > >
> >
> 72974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> > > V2luMzI
> > > > >
> > >
> >
> iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=iKTPucGQqcRXET
> > > QZiQz
> > > > > j90WdJeCYDytdZHJ1ZiUyR%2FM%3D&amp;reserved=0
> > > > > _linux-2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-
> > > 40MWHPR10MB131
> > > > >
> > >
> >
> 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3Y
> > > JGoxo
> > > > > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > 862rdSP13_P6LVp7j_9l1xmg&m=lNXu
> > > > >
> > >
> >
> 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU
> > > 60y21
> > > > > ijWZmZ8xmOK1cO_O0&e=
> > > > >
> > > > > is that this is a board developed by his company.
> > > > >
> > > > > Edgar -- please can you answer Alex's questions?
> > > > >
> > > > > Will

RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Merger, Edgar [AUTOSOL/MAS/AUGS]]

[-- Attachment #1: Type: text/plain, Size: 32264 bytes --]

Applied the patch as in attachment. Verified that ATS for GPU-Device had been disabled. See attachment "dmesg_ATS.log".

Was running that build over night successfully.

-----Original Message-----
From: Merger, Edgar [AUTOSOL/MAS/AUGS] 
Sent: Montag, 7. Dezember 2020 05:53
To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

Hi Alex,

I believe in the patch file, this
+		    (pdev->subsystem_device == 0x0c19 ||
+		     pdev->subsystem_device == 0x0c10))

Has to be changed to:
+		    (pdev->subsystem_device == 0xce19 ||
+		     pdev->subsystem_device == 0xcc10))

Because our SSIDs are "ea50:ce19" and "ea50:cc10" respectively and another one would "ea50:cc08". 

I will apply that patch and feedback the results soon plus the patch file that I actually had applied.


-----Original Message-----
From: Deucher, Alexander <Alexander.Deucher@amd.com>
Sent: Montag, 30. November 2020 19:36
To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[AMD Public Use]

> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>
> Sent: Thursday, November 26, 2020 4:24 AM
> To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> Alex,
> 
> This is pretty much the same patch as what I have received from Joerg 
> previously, except that it is tied to the particular Emerson platform 
> and its derivatives (listed with Subsystem IDs).

Right.  As per my original point, I don't want to disable ATS on all Picasso chips because doing so would break GPU compute on them, so I'd like to apply this quirk as narrowly as possible.

> 
> Below patch was what Joerg provided me and I successfully tested.
> 
> This diff to the kernel should do that:
> 
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 
> f70692ac79c5..3911b0ec57ba 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -5176,6 +5176,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI,
> 0x6900, quirk_amd_harvest_no_ats);
> DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, 
> quirk_amd_harvest_no_ats);
>  /* AMD Navi14 dGPU */
>  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, 
> quirk_amd_harvest_no_ats);
> +/* AMD Raven platform iGPU */
> +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, 
> +quirk_amd_harvest_no_ats);
>  #endif /* CONFIG_PCI_ATS */
> 
>  /* Freescale PCIe doesn't support MSI in RC mode */
> 
> So far I have seen this issue on two instances of this chip, but I 
> must admit that I did test only two of them to this extent, so I guess 
> it is not a bad chip in particular, but the chips we use are from the 
> same production lot, so it might be a systematical problem of that production lot?
> 
> UEFI-Setup shows:
> Processor Family: 17h
> Procossor Model: 20h - 2Fh
> CPUID: 00820F01
> Microcode Patch Level: 8200103
> 
> Looking at the chip-die I found that this is a fully qualified IP 
> Silicon (according to Ryzen Embedded R1000 SOC Interlock).
> YE1305C9T20FG
> BI2015SUY
> 9JB6496P00123
> 2016 AMD
> DIFFUSED IN USA
> MADE IN CHINA
> 
> Currently used SBIOS is a branch from "EmbeddedPI-FP5 1.2.0.3RC3".
> 
> In the future our SBIOS might merge with EmbeddedPI-FP5_1.2.0.5RC3.
> 

I think it's more likely an sbios issue, so hopefully the new release fixes it.

Alex

> 
> 
> 
> -----Original Message-----
> From: Deucher, Alexander <Alexander.Deucher@amd.com>
> Sent: Mittwoch, 25. November 2020 17:08
> To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; 
> Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> [AMD Public Use]
> 
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>
> > Sent: Wednesday, November 25, 2020 5:04 AM
> > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > I do have also other problems with this unit, when IOMMU is enabled 
> > and pci=noats is not set as kernel parameter.
> >
> > [ 2004.265906] amdgpu 0000:0b:00.0: [drm:amdgpu_ib_ring_tests 
> > [amdgpu]]
> > *ERROR* IB test failed on gfx (-110).
> > [ 2004.266024] [drm:amdgpu_device_delayed_init_work_handler
> [amdgpu]]
> > *ERROR* ib ring test failed (-110).
> >
> 
> Is this seen on all instances of this chip or only specific silicon?  
> I.e., could this be a bad chip?  Would it be possible to test a newer 
> sbios?  I think the attached patch should work if we can't get it 
> fixed on the platform side.  It should only enable the quirk on your particular platform.
> 
> Alex
> 
> 
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > Sent: Mittwoch, 25. November 2020 10:16
> > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang, Ray'
> > <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
> > Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org'
> > <linux- kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org' <linux- 
> > pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org'
> > <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas'
> > <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu, 
> > Changfeng' <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > Remark:
> >
> > Systems with R1305G APU (which show the issue) have the following
> > VGA-
> > Controller:
> > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > [AMD/ATI] Picasso (rev cf)
> >
> > Systems with V1404I APU (which do not show the issue) have the 
> > following
> > VGA-Controller:
> > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile 
> > Series] (rev 83)
> >
> > "rev cf" vs. "ref 83" is probably what you where referring to with 
> > PCI Revision ID.
> >
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > Sent: Mittwoch, 25. November 2020 07:05
> > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; Huang, Ray 
> > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > I see that problem only on systems that use a R1305G APU
> >
> > sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info
> >
> > shows
> >
> > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > version: 0, firmware version: 0x00000000 MC feature version: 0, 
> > firmware
> version:
> > 0x00000000 ME feature version: 50, firmware version: 0x000000a3 PFP 
> > feature version: 50, firmware version: 0x000000bb CE feature version:
> > 50, firmware version: 0x0000004f RLC feature version: 1, firmware version:
> > 0x00000049 RLC SRLC feature version: 1, firmware version: 0x00000001 
> > RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS 
> > feature
> > version: 1, firmware version: 0x00000001 MEC feature version: 50, 
> > firmware
> > version: 0x000001b5
> > MEC2 feature version: 50, firmware version: 0x000001b5 SOS feature
> version:
> > 0, firmware version: 0x00000000 ASD feature version: 0, firmware version:
> > 0x21000030 TA XGMI feature version: 0, firmware version: 0x00000000 
> > TA RAS feature version: 0, firmware version: 0x00000000 SMC feature
> > version: 0, firmware version: 0x00002527
> > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature
> > version: 0, firmware version: 0x0110901c DMCU feature version: 0, 
> > firmware
> > version: 0x00000001 VBIOS version: 113-RAVEN2-117
> >
> > We are also using V1404I APU on the same boards and I haven´t seen 
> > the issue on those boards
> >
> > These boards give me slightly different info: sudo cat 
> > /sys/kernel/debug/dri/0/amdgpu_firmware_info
> >
> > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > version: 0, firmware version: 0x00000000 MC feature version: 0, 
> > firmware
> version:
> > 0x00000000 ME feature version: 47, firmware version: 0x000000a2 PFP 
> > feature version: 47, firmware version: 0x000000b9 CE feature version:
> > 47, firmware version: 0x0000004e RLC feature version: 1, firmware version:
> > 0x00000213 RLC SRLC feature version: 1, firmware version: 0x00000001 
> > RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS 
> > feature
> > version: 1, firmware version: 0x00000001 MEC feature version: 47, 
> > firmware
> > version: 0x000001ab
> > MEC2 feature version: 47, firmware version: 0x000001ab SOS feature
> version:
> > 0, firmware version: 0x00000000 ASD feature version: 0, firmware version:
> > 0x21000013 TA XGMI feature version: 0, firmware version: 0x00000000 
> > TA RAS feature version: 0, firmware version: 0x00000000 SMC feature
> > version: 0, firmware version: 0x00001e5b
> > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature
> > version: 0, firmware version: 0x0110901c DMCU feature version: 0, 
> > firmware
> > version: 0x00000000 VBIOS version: 113-RAVEN-116
> >
> >
> >
> >
> > 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Root Complex
> > 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> IOMMU
> > 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h 
> > (Models
> > 00h-1fh) PCIe Dummy Host Bridge
> > 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > PCIe GPP Bridge [6:0]
> > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > Switch Upstream (PCIE SW.US)
> > 00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > PCIe GPP Bridge [6:0]
> > 00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > Switch Upstream (PCIE SW.US)
> > 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h 
> > (Models
> > 00h-1fh) PCIe Dummy Host Bridge
> > 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Internal PCIe GPP Bridge 0 to Bus A
> > 00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Internal PCIe GPP Bridge 0 to Bus B
> > 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus 
> > Controller (rev 61)
> > 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC 
> > Bridge (rev
> > 51)
> > 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 0
> > 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 1
> > 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 2
> > 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 3
> > 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 4
> > 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 5
> > 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 6
> > 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 7
> > 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> > RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0e)
> > 01:00.1 Serial controller: Realtek Semiconductor Co., Ltd. Device 
> > 816a (rev 0e)
> > 01:00.2 Serial controller: Realtek Semiconductor Co., Ltd. Device 
> > 816b (rev 0e)
> > 01:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 816c 
> > (rev 0e)
> > 01:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 816d 
> > (rev 0e)
> > 02:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network 
> > Connection (rev 03)
> > 03:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:03.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:04.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:05.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 06:00.0 Serial controller: Asix Electronics Corporation Device 9100
> > 06:00.1 Serial controller: Asix Electronics Corporation Device 9100
> > 07:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network 
> > Connection (rev 03)
> > 0a:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network 
> > Connection (rev 03)
> > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > [AMD/ATI] Picasso (rev cf)
> > 0b:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] 
> > Raven/Raven2/Fenghuang HDMI/DP Audio Controller
> > 0b:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] 
> > Family 17h (Models 10h-1fh) Platform Security Processor
> > 0b:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven2 
> > USB
> > 3.1
> > 0b:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] 
> > Raven/Raven2/FireFlight/Renoir Audio Processor
> > 0b:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc.
> > [AMD] Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver
> > 0c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA 
> > Controller [AHCI mode] (rev 61)
> >
> > PCI Revision ID is 06 I believe. Got that from this lspci -xx
> >
> > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > Switch Upstream (PCIE SW.US)
> > 00: 22 10 5d 14 07 04 10 00 00 00 04 06 10 00 81 00
> > 10: 00 00 00 00 00 00 00 00 00 02 02 00 f1 01 00 00
> > 20: e0 fc e0 fc f1 ff 01 00 00 00 00 00 00 00 00 00
> > 30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 12 00
> > 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > 50: 01 58 03 c8 00 00 00 00 10 a0 42 01 22 80 00 00
> > 60: 1f 29 00 00 13 38 73 03 42 00 11 30 00 00 04 00
> > 70: 00 00 40 01 18 00 01 00 00 00 00 00 bf 01 70 00
> > 80: 06 00 00 00 0e 00 00 00 03 00 01 00 00 00 00 00
> > 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > a0: 05 c0 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00
> > b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > c0: 0d c8 00 00 22 10 34 12 08 00 03 a8 00 00 00 00
> > d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > e0: 00 00 00 00 4c 8a 05 00 00 00 00 00 00 00 00 00
> > f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> >
> > -----Original Message-----
> > From: Deucher, Alexander <Alexander.Deucher@amd.com>
> > Sent: Dienstag, 24. November 2020 16:06
> > To: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>;
> > Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > [AMD Public Use]
> >
> > > -----Original Message-----
> > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > <Edgar.Merger@emerson.com>
> > > Sent: Tuesday, November 24, 2020 2:29 AM
> > > To: Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > > <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux- 
> > > pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; 
> > > Zhu,
> > Changfeng
> > > <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > as broken
> > >
> > > Module Version : PiccasoCpu 10
> > > AGESA Version   : PiccasoPI 100A
> > >
> > > I did not try to enter the system in any other way (like via ssh) 
> > > than via Desktop.
> >
> > You can get this information from the amdgpu driver.  E.g., sudo cat 
> > /sys/kernel/debug/dri/0/amdgpu_firmware_info .  Also what is the PCI 
> > revision id of your chip (from lspci)?  Also are you just seeing 
> > this on specific versions of the sbios?
> >
> > Thanks,
> >
> > Alex
> >
> >
> > >
> > > -----Original Message-----
> > > From: Huang Rui <ray.huang@amd.com>
> > > Sent: Dienstag, 24. November 2020 07:43
> > > To: Kuehling, Felix <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux- 
> > > pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > > Helgaas <bhelgaas@google.com>; Merger, Edgar [AUTOSOL/MAS/AUGS] 
> > > <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>;
> > Changfeng
> > > Zhu <changfeng.zhu@amd.com>
> > > Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> > broken
> > >
> > > On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> > > > On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > > > > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander
> wrote:
> > > > >> [AMD Public Use]
> > > > >>
> > > > >>> -----Original Message-----
> > > > >>> From: Will Deacon <will@kernel.org>
> > > > >>> Sent: Monday, November 23, 2020 8:44 AM
> > > > >>> To: linux-kernel@vger.kernel.org
> > > > >>> Cc: linux-pci@vger.kernel.org; 
> > > > >>> iommu@lists.linux-foundation.org; Will Deacon 
> > > > >>> <will@kernel.org>; Bjorn Helgaas <bhelgaas@google.com>; 
> > > > >>> Deucher, Alexander <Alexander.Deucher@amd.com>; Edgar
> Merger
> > > > >>> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
> > > > >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > > > >>>
> > > > >>> Edgar Merger reports that the AMD Raven GPU does not work 
> > > > >>> reliably on his system when the IOMMU is enabled:
> > > > >>>
> > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > > >>> timeout, signaled seq=1, emitted seq=3
> > > > >>>    | [...]
> > > > >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> > > > >>>    | AMD-Vi: Completion-Wait loop timed out
> > > > >>>    | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> > > > >>> device=0b:00.0 address=0x38edc0970]
> > > > >>>
> > > > >>> This is indicative of a hardware/platform configuration 
> > > > >>> issue so, since disabling ATS has been shown to resolve the 
> > > > >>> problem, add a quirk to match this particular device while 
> > > > >>> Edgar follows-up with AMD
> > > for more information.
> > > > >>>
> > > > >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> > > > >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> > > > >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > > > >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> > > > >>> Link:
> > > > >>>
> > >
> >
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> > >
> >
> MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C100
> > >
> >
> 0&amp;sdata=OEgYlw%2F1YP0C%2FnWBRQUxwBH56mGOJxYMWSQ%2Fj1Y
> > > 9f6Q%3D&amp;reserved=0 .
> > > > >>> kernel.org/linux-
> > > > >>>
> > > iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> > > > >>> B1310.namprd10.prod.outlook.com
> > > > >>>
> > >
> >
> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > > > >>>
> > >
> >
> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > > > >>>
> > >
> >
> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > > > >>>
> > >
> >
> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > > > >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > > > >>> Signed-off-by: Will Deacon <will@kernel.org>
> > > > >>> ---
> > > > >>>
> > > > >>> Hi all,
> > > > >>>
> > > > >>> Since Joerg is away at the moment, I'm posting this to try 
> > > > >>> to make some progress with the thread in the Link: tag.
> > > > >> + Felix
> > > > >>
> > > > >> What system is this?  Can you provide more details?  Does a 
> > > > >> sbios update fix this?  Disabling ATS for all Ravens will 
> > > > >> break GPU compute for a lot of people.  I'd prefer to just 
> > > > >> black list this particular system (e.g., just SSIDs or revision) if possible.
> > > >
> > > > +Ray
> > > >
> > > > There are already many systems where the IOMMU is disabled in 
> > > > the BIOS, or the CRAT table reporting the APU compute 
> > > > capabilities is broken. Ray has been working on a fallback to 
> > > > make APUs behave like dGPUs on such systems. That should also 
> > > > cover this case where ATS is blacklisted. That said, it affects 
> > > > the programming model, because we don't support the unified and 
> > > > coherent memory model on dGPUs like we do on APUs with IOMMUv2.
> > > > So it would be good to
> make
> > > > the conditions for this workaround as narrow as possible.
> > >
> > > Yes, besides the comments from Alex and Felix, may we get your 
> > > firmware version (SMC firmware which is from SBIOS) and device id?
> > >
> > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > > >>> timeout, signaled seq=1, emitted seq=3
> > >
> > > It looks only gfx ib test passed, and fails to lanuch desktop, am I right?
> > >
> > > We would like to see whether it is Raven, Raven kicker (new 
> > > Raven), or Picasso. In our side, per the internal test result, we 
> > > didn't see the similiar issue on Raven kicker and Picasso platform.
> > >
> > > Thanks,
> > > Ray
> > >
> > > >
> > > > These are the relevant changes in KFD and Thunk for reference:
> > > >
> > > > ### KFD ###
> > > >
> > > > commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> > > > Author: Huang Rui <ray.huang@amd.com>
> > > > Date:   Tue Aug 18 14:54:23 2020 +0800
> > > >
> > > >      drm/amdkfd: implement the dGPU fallback path for apu (v6)
> > > >
> > > >      We still have a few iommu issues which need to address, so 
> > > > force raven
> > > >      as "dgpu" path for the moment.
> > > >
> > > >      This is to add the fallback path to bypass IOMMU if IOMMU
> > > > v2 is disabled
> > > >      or ACPI CRAT table not correct.
> > > >
> > > >      v2: Use ignore_crat parameter to decide whether it will go 
> > > > with IOMMUv2.
> > > >      v3: Align with existed thunk, don't change the way of 
> > > > raven, only renoir
> > > >          will use "dgpu" path by default.
> > > >      v4: don't update global ignore_crat in the driver, and 
> > > > revise fallback
> > > >          function if CRAT is broken.
> > > >      v5: refine acpi crat good but no iommu support case, and 
> > > > rename the
> > > >          title.
> > > >      v6: fix the issue of dGPU initialized firstly, just modify 
> > > > the report
> > > >          value in the node_show().
> > > >
> > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > >      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
> > > >      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> > > >
> > > > ### Thunk ###
> > > >
> > > > commit e32482fa4b9ca398c8bdc303920abfd672592764
> > > > Author: Huang Rui <ray.huang@amd.com>
> > > > Date:   Tue Aug 18 18:54:05 2020 +0800
> > > >
> > > >      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> > > >
> > > >      Whether use dgpu path will check the props which exposed 
> > > > from
> > kernel.
> > > >      We won't need hard code in the ASIC table.
> > > >
> > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > >      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> > > >
> > > > commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> > > > Author: Huang Rui <ray.huang@amd.com>
> > > > Date:   Thu Jul 30 10:22:23 2020 +0800
> > > >
> > > >      libhsakmt: implement the method that using flag which 
> > > > exposed by kfd to configure is_dgpu
> > > >
> > > >      KFD already implemented the fallback path for APU. Thunk 
> > > > will use flag
> > > >      which exposed by kfd to configure is_dgpu instead of 
> > > > hardcode
> > before.
> > > >
> > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > >      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> > > >
> > > > Regards,
> > > >    Felix
> > > >
> > > >
> > > > > Cheers, Alex. I'll have to defer to Edgar for the details, as 
> > > > > my understanding from the original thread over at:
> > > > >
> > > > >
> > >
> >
> https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.p
> rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Furld&d=DwIFAw&c=jOU
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP1
> 3_P6LVp7j_9l1xmg&m=BIpm40CYGVSJNrmoqPI4DeIayU0tYU2D5NpRwfbkZvA&s=tmsZ3
> ihrSXZ3g6wdJ2maxU9mJ1TGcRxd91z9IQTP00A&e=
> efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__nam11.safelinks.p&amp;data=04%7C01%7CAlexander.Deucher%40amd
> .com%7C9194a443d95c4ffcb7f708d891ed0889%7C3dd8961fe4884e608e11a82
> d994e183d%7C0%7C1%7C637419794843309283%7CUnknown%7CTWFpbGZsb
> 3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0
> %3D%7C1000&amp;sdata=4JGSwn7au4u%2FBB69mmq0%2BrWfVG12sEyd5H
> oBUeiut9o%3D&amp;reserved=0
> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Furld&d=DwIFAw&c=jOU
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP1
> > 3_P6LVp7j_9l1xmg&m=ZhN0Jau6oCc4cnz64IhGK2-
> XDiD5D_6vW6ZYbifWYF0&s=ndvE-
> > ezxTBweMMUjyMWdiCyPB6GDIS_eWs0kmZwqtpY&e=
> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > 3A__nam11.safelinks.p&amp
> > >
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C1d797071822d47ce6
> > c9808d8
> > >
> >
> 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
> > 3633797
> > >
> >
> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> > zIiLCJBTiI
> > >
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> > sj6eMk3
> > > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > 252Fur&d=DwIFAw&c=jOURT
> > >
> kCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > 862rdSP13_
> > > P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> > udp1CLokf2QWuzFgE&s=IPZRolk
> > > y3TYlbWPsOkY37MbDdzwhc1b_LaE6JkaOkOo&e=
> > > > > ldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > 3A__lore.kernel.org&a
> > > > >
> > >
> >
> mp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5fa241f963469
> > > 2c039
> > > > >
> > >
> >
> 08d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63741
> > > 79972
> > > > >
> > >
> >
> 72974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> > > V2luMzI
> > > > >
> > >
> >
> iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=iKTPucGQqcRXET
> > > QZiQz
> > > > > j90WdJeCYDytdZHJ1ZiUyR%2FM%3D&amp;reserved=0
> > > > > _linux-2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-
> > > 40MWHPR10MB131
> > > > >
> > >
> >
> 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3Y
> > > JGoxo
> > > > > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > 862rdSP13_P6LVp7j_9l1xmg&m=lNXu
> > > > >
> > >
> >
> 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU
> > > 60y21
> > > > > ijWZmZ8xmOK1cO_O0&e=
> > > > >
> > > > > is that this is a board developed by his company.
> > > > >
> > > > > Edgar -- please can you answer Alex's questions?
> > > > >
> > > > > Will

[-- Attachment #2: dmesg_ATS.log --]
[-- Type: application/octet-stream, Size: 84 bytes --]

[    0.000000] PCIe: ATS is disabled
[    0.538229] pci 0000:0b:00.0: disabling ATS

[-- Attachment #3: 0001-PCI-quirks-Add-an-ATS-quirk-for-a-Picasso-APU_customized.patch --]
[-- Type: application/octet-stream, Size: 1572 bytes --]

From 4e9e80150dc4d736b833137d558e126f44115905 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 25 Nov 2020 10:57:15 -0500
Subject: [PATCH] PCI: quirks: Add an ATS quirk for a Picasso APU

This is very specific to a particular platform, because
ATS is required for GPU compute and this is not known
to be an issue on any other Picasso platforms.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/pci/quirks.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index f70692ac79c5..d6e3845d5d04 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5164,6 +5164,17 @@ static void quirk_amd_harvest_no_ats(struct pci_dev *pdev)
 	    (pdev->device == 0x7340 && pdev->revision != 0xc5))
 		return;
 
+	if (pdev->device == 0x15d8) {
+		if (pdev->revision == 0xcf &&
+		    pdev->subsystem_vendor == 0xea50 &&
+		    (pdev->subsystem_device == 0xce19 ))
+			goto no_ats;
+		else
+			return;
+	}
+
+no_ats:
 	pci_info(pdev, "disabling ATS\n");
 	pdev->ats_cap = 0;
 }
@@ -5176,6 +5187,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, quirk_amd_harvest_no_ats);
 /* AMD Navi14 dGPU */
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats);
+/* AMD Raven platform iGPU */
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, quirk_amd_harvest_no_ats);
 #endif /* CONFIG_PCI_ATS */
 
 /* Freescale PCIe doesn't support MSI in RC mode */
-- 
2.25.4

RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Merger, Edgar [AUTOSOL/MAS/AUGS]]

[-- Attachment #1: Type: text/plain, Size: 33059 bytes --]

Alex,

I had to revise the patch. Please see attachment. It is actually two more SSIDs affected to that.

Best regards,
Edgar

-----Original Message-----
From: Merger, Edgar [AUTOSOL/MAS/AUGS] 
Sent: Dienstag, 8. Dezember 2020 09:23
To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang, Ray' <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org' <linux-kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org' <linux-pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org' <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas' <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu, Changfeng' <Changfeng.Zhu@amd.com>
Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

Applied the patch as in attachment. Verified that ATS for GPU-Device had been disabled. See attachment "dmesg_ATS.log".

Was running that build over night successfully.

-----Original Message-----
From: Merger, Edgar [AUTOSOL/MAS/AUGS]
Sent: Montag, 7. Dezember 2020 05:53
To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

Hi Alex,

I believe in the patch file, this
+		    (pdev->subsystem_device == 0x0c19 ||
+		     pdev->subsystem_device == 0x0c10))

Has to be changed to:
+		    (pdev->subsystem_device == 0xce19 ||
+		     pdev->subsystem_device == 0xcc10))

Because our SSIDs are "ea50:ce19" and "ea50:cc10" respectively and another one would "ea50:cc08". 

I will apply that patch and feedback the results soon plus the patch file that I actually had applied.


-----Original Message-----
From: Deucher, Alexander <Alexander.Deucher@amd.com>
Sent: Montag, 30. November 2020 19:36
To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[AMD Public Use]

> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>
> Sent: Thursday, November 26, 2020 4:24 AM
> To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> Alex,
> 
> This is pretty much the same patch as what I have received from Joerg 
> previously, except that it is tied to the particular Emerson platform 
> and its derivatives (listed with Subsystem IDs).

Right.  As per my original point, I don't want to disable ATS on all Picasso chips because doing so would break GPU compute on them, so I'd like to apply this quirk as narrowly as possible.

> 
> Below patch was what Joerg provided me and I successfully tested.
> 
> This diff to the kernel should do that:
> 
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 
> f70692ac79c5..3911b0ec57ba 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -5176,6 +5176,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI,
> 0x6900, quirk_amd_harvest_no_ats);
> DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, 
> quirk_amd_harvest_no_ats);
>  /* AMD Navi14 dGPU */
>  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, 
> quirk_amd_harvest_no_ats);
> +/* AMD Raven platform iGPU */
> +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, 
> +quirk_amd_harvest_no_ats);
>  #endif /* CONFIG_PCI_ATS */
> 
>  /* Freescale PCIe doesn't support MSI in RC mode */
> 
> So far I have seen this issue on two instances of this chip, but I 
> must admit that I did test only two of them to this extent, so I guess 
> it is not a bad chip in particular, but the chips we use are from the 
> same production lot, so it might be a systematical problem of that production lot?
> 
> UEFI-Setup shows:
> Processor Family: 17h
> Procossor Model: 20h - 2Fh
> CPUID: 00820F01
> Microcode Patch Level: 8200103
> 
> Looking at the chip-die I found that this is a fully qualified IP 
> Silicon (according to Ryzen Embedded R1000 SOC Interlock).
> YE1305C9T20FG
> BI2015SUY
> 9JB6496P00123
> 2016 AMD
> DIFFUSED IN USA
> MADE IN CHINA
> 
> Currently used SBIOS is a branch from "EmbeddedPI-FP5 1.2.0.3RC3".
> 
> In the future our SBIOS might merge with EmbeddedPI-FP5_1.2.0.5RC3.
> 

I think it's more likely an sbios issue, so hopefully the new release fixes it.

Alex

> 
> 
> 
> -----Original Message-----
> From: Deucher, Alexander <Alexander.Deucher@amd.com>
> Sent: Mittwoch, 25. November 2020 17:08
> To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; 
> Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> [AMD Public Use]
> 
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>
> > Sent: Wednesday, November 25, 2020 5:04 AM
> > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > I do have also other problems with this unit, when IOMMU is enabled 
> > and pci=noats is not set as kernel parameter.
> >
> > [ 2004.265906] amdgpu 0000:0b:00.0: [drm:amdgpu_ib_ring_tests 
> > [amdgpu]]
> > *ERROR* IB test failed on gfx (-110).
> > [ 2004.266024] [drm:amdgpu_device_delayed_init_work_handler
> [amdgpu]]
> > *ERROR* ib ring test failed (-110).
> >
> 
> Is this seen on all instances of this chip or only specific silicon?  
> I.e., could this be a bad chip?  Would it be possible to test a newer 
> sbios?  I think the attached patch should work if we can't get it 
> fixed on the platform side.  It should only enable the quirk on your particular platform.
> 
> Alex
> 
> 
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > Sent: Mittwoch, 25. November 2020 10:16
> > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang, Ray'
> > <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
> > Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org'
> > <linux- kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org' <linux- 
> > pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org'
> > <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas'
> > <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu, 
> > Changfeng' <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > Remark:
> >
> > Systems with R1305G APU (which show the issue) have the following
> > VGA-
> > Controller:
> > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > [AMD/ATI] Picasso (rev cf)
> >
> > Systems with V1404I APU (which do not show the issue) have the 
> > following
> > VGA-Controller:
> > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile 
> > Series] (rev 83)
> >
> > "rev cf" vs. "ref 83" is probably what you where referring to with 
> > PCI Revision ID.
> >
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > Sent: Mittwoch, 25. November 2020 07:05
> > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; Huang, Ray 
> > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > I see that problem only on systems that use a R1305G APU
> >
> > sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info
> >
> > shows
> >
> > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > version: 0, firmware version: 0x00000000 MC feature version: 0, 
> > firmware
> version:
> > 0x00000000 ME feature version: 50, firmware version: 0x000000a3 PFP 
> > feature version: 50, firmware version: 0x000000bb CE feature version:
> > 50, firmware version: 0x0000004f RLC feature version: 1, firmware version:
> > 0x00000049 RLC SRLC feature version: 1, firmware version: 0x00000001 
> > RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS 
> > feature
> > version: 1, firmware version: 0x00000001 MEC feature version: 50, 
> > firmware
> > version: 0x000001b5
> > MEC2 feature version: 50, firmware version: 0x000001b5 SOS feature
> version:
> > 0, firmware version: 0x00000000 ASD feature version: 0, firmware version:
> > 0x21000030 TA XGMI feature version: 0, firmware version: 0x00000000 
> > TA RAS feature version: 0, firmware version: 0x00000000 SMC feature
> > version: 0, firmware version: 0x00002527
> > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature
> > version: 0, firmware version: 0x0110901c DMCU feature version: 0, 
> > firmware
> > version: 0x00000001 VBIOS version: 113-RAVEN2-117
> >
> > We are also using V1404I APU on the same boards and I haven´t seen 
> > the issue on those boards
> >
> > These boards give me slightly different info: sudo cat 
> > /sys/kernel/debug/dri/0/amdgpu_firmware_info
> >
> > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > version: 0, firmware version: 0x00000000 MC feature version: 0, 
> > firmware
> version:
> > 0x00000000 ME feature version: 47, firmware version: 0x000000a2 PFP 
> > feature version: 47, firmware version: 0x000000b9 CE feature version:
> > 47, firmware version: 0x0000004e RLC feature version: 1, firmware version:
> > 0x00000213 RLC SRLC feature version: 1, firmware version: 0x00000001 
> > RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS 
> > feature
> > version: 1, firmware version: 0x00000001 MEC feature version: 47, 
> > firmware
> > version: 0x000001ab
> > MEC2 feature version: 47, firmware version: 0x000001ab SOS feature
> version:
> > 0, firmware version: 0x00000000 ASD feature version: 0, firmware version:
> > 0x21000013 TA XGMI feature version: 0, firmware version: 0x00000000 
> > TA RAS feature version: 0, firmware version: 0x00000000 SMC feature
> > version: 0, firmware version: 0x00001e5b
> > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature
> > version: 0, firmware version: 0x0110901c DMCU feature version: 0, 
> > firmware
> > version: 0x00000000 VBIOS version: 113-RAVEN-116
> >
> >
> >
> >
> > 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Root Complex
> > 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> IOMMU
> > 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h 
> > (Models
> > 00h-1fh) PCIe Dummy Host Bridge
> > 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > PCIe GPP Bridge [6:0]
> > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > Switch Upstream (PCIE SW.US)
> > 00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > PCIe GPP Bridge [6:0]
> > 00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > Switch Upstream (PCIE SW.US)
> > 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h 
> > (Models
> > 00h-1fh) PCIe Dummy Host Bridge
> > 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Internal PCIe GPP Bridge 0 to Bus A
> > 00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Internal PCIe GPP Bridge 0 to Bus B
> > 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus 
> > Controller (rev 61)
> > 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC 
> > Bridge (rev
> > 51)
> > 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 0
> > 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 1
> > 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 2
> > 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 3
> > 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 4
> > 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 5
> > 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 6
> > 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 
> > Device 24: Function 7
> > 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> > RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0e)
> > 01:00.1 Serial controller: Realtek Semiconductor Co., Ltd. Device 
> > 816a (rev 0e)
> > 01:00.2 Serial controller: Realtek Semiconductor Co., Ltd. Device 
> > 816b (rev 0e)
> > 01:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 816c 
> > (rev 0e)
> > 01:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 816d 
> > (rev 0e)
> > 02:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network 
> > Connection (rev 03)
> > 03:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:03.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:04.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 04:05.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > 6-Port/8- Lane Packet Switch
> > 06:00.0 Serial controller: Asix Electronics Corporation Device 9100
> > 06:00.1 Serial controller: Asix Electronics Corporation Device 9100
> > 07:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network 
> > Connection (rev 03)
> > 0a:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network 
> > Connection (rev 03)
> > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > [AMD/ATI] Picasso (rev cf)
> > 0b:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] 
> > Raven/Raven2/Fenghuang HDMI/DP Audio Controller
> > 0b:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] 
> > Family 17h (Models 10h-1fh) Platform Security Processor
> > 0b:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven2 
> > USB
> > 3.1
> > 0b:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] 
> > Raven/Raven2/FireFlight/Renoir Audio Processor
> > 0b:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc.
> > [AMD] Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver
> > 0c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA 
> > Controller [AHCI mode] (rev 61)
> >
> > PCI Revision ID is 06 I believe. Got that from this lspci -xx
> >
> > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > Switch Upstream (PCIE SW.US)
> > 00: 22 10 5d 14 07 04 10 00 00 00 04 06 10 00 81 00
> > 10: 00 00 00 00 00 00 00 00 00 02 02 00 f1 01 00 00
> > 20: e0 fc e0 fc f1 ff 01 00 00 00 00 00 00 00 00 00
> > 30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 12 00
> > 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > 50: 01 58 03 c8 00 00 00 00 10 a0 42 01 22 80 00 00
> > 60: 1f 29 00 00 13 38 73 03 42 00 11 30 00 00 04 00
> > 70: 00 00 40 01 18 00 01 00 00 00 00 00 bf 01 70 00
> > 80: 06 00 00 00 0e 00 00 00 03 00 01 00 00 00 00 00
> > 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > a0: 05 c0 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00
> > b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > c0: 0d c8 00 00 22 10 34 12 08 00 03 a8 00 00 00 00
> > d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > e0: 00 00 00 00 4c 8a 05 00 00 00 00 00 00 00 00 00
> > f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> >
> > -----Original Message-----
> > From: Deucher, Alexander <Alexander.Deucher@amd.com>
> > Sent: Dienstag, 24. November 2020 16:06
> > To: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>;
> > Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > [AMD Public Use]
> >
> > > -----Original Message-----
> > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > <Edgar.Merger@emerson.com>
> > > Sent: Tuesday, November 24, 2020 2:29 AM
> > > To: Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > > <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux- 
> > > pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; 
> > > Zhu,
> > Changfeng
> > > <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > as broken
> > >
> > > Module Version : PiccasoCpu 10
> > > AGESA Version   : PiccasoPI 100A
> > >
> > > I did not try to enter the system in any other way (like via ssh) 
> > > than via Desktop.
> >
> > You can get this information from the amdgpu driver.  E.g., sudo cat 
> > /sys/kernel/debug/dri/0/amdgpu_firmware_info .  Also what is the PCI 
> > revision id of your chip (from lspci)?  Also are you just seeing 
> > this on specific versions of the sbios?
> >
> > Thanks,
> >
> > Alex
> >
> >
> > >
> > > -----Original Message-----
> > > From: Huang Rui <ray.huang@amd.com>
> > > Sent: Dienstag, 24. November 2020 07:43
> > > To: Kuehling, Felix <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; linux- 
> > > pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > > Helgaas <bhelgaas@google.com>; Merger, Edgar [AUTOSOL/MAS/AUGS] 
> > > <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>;
> > Changfeng
> > > Zhu <changfeng.zhu@amd.com>
> > > Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> > broken
> > >
> > > On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> > > > On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > > > > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander
> wrote:
> > > > >> [AMD Public Use]
> > > > >>
> > > > >>> -----Original Message-----
> > > > >>> From: Will Deacon <will@kernel.org>
> > > > >>> Sent: Monday, November 23, 2020 8:44 AM
> > > > >>> To: linux-kernel@vger.kernel.org
> > > > >>> Cc: linux-pci@vger.kernel.org; 
> > > > >>> iommu@lists.linux-foundation.org; Will Deacon 
> > > > >>> <will@kernel.org>; Bjorn Helgaas <bhelgaas@google.com>; 
> > > > >>> Deucher, Alexander <Alexander.Deucher@amd.com>; Edgar
> Merger
> > > > >>> <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
> > > > >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > > > >>>
> > > > >>> Edgar Merger reports that the AMD Raven GPU does not work 
> > > > >>> reliably on his system when the IOMMU is enabled:
> > > > >>>
> > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > > >>> timeout, signaled seq=1, emitted seq=3
> > > > >>>    | [...]
> > > > >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> > > > >>>    | AMD-Vi: Completion-Wait loop timed out
> > > > >>>    | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> > > > >>> device=0b:00.0 address=0x38edc0970]
> > > > >>>
> > > > >>> This is indicative of a hardware/platform configuration 
> > > > >>> issue so, since disabling ATS has been shown to resolve the 
> > > > >>> problem, add a quirk to match this particular device while 
> > > > >>> Edgar follows-up with AMD
> > > for more information.
> > > > >>>
> > > > >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> > > > >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> > > > >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > > > >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> > > > >>> Link:
> > > > >>>
> > >
> >
> https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.p
> rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Furld&d=DwIFAw&c=jOU
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP1
> 3_P6LVp7j_9l1xmg&m=BIpm40CYGVSJNrmoqPI4DeIayU0tYU2D5NpRwfbkZvA&s=tmsZ3
> ihrSXZ3g6wdJ2maxU9mJ1TGcRxd91z9IQTP00A&e=
> efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__nam11.safelinks.p&amp;data=04%7C01%7CAlexander.Deucher%40amd
> .com%7C9194a443d95c4ffcb7f708d891ed0889%7C3dd8961fe4884e608e11a82
> d994e183d%7C0%7C1%7C637419794843309283%7CUnknown%7CTWFpbGZsb
> 3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0
> %3D%7C1000&amp;sdata=4JGSwn7au4u%2FBB69mmq0%2BrWfVG12sEyd5H
> oBUeiut9o%3D&amp;reserved=0
> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Furld&d=DwIFAw&c=jOU
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP1
> > 3_P6LVp7j_9l1xmg&m=ZhN0Jau6oCc4cnz64IhGK2-
> XDiD5D_6vW6ZYbifWYF0&s=ndvE-
> > ezxTBweMMUjyMWdiCyPB6GDIS_eWs0kmZwqtpY&e=
> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > 3A__nam11.safelinks.p&amp
> > >
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C1d797071822d47ce6
> > c9808d8
> > >
> >
> 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
> > 3633797
> > >
> >
> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> > zIiLCJBTiI
> > >
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> > sj6eMk3
> > > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > 252Furld&d=DwIFAw&c=jOU
> > >
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > 862rdSP1
> > > 3_P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> > udp1CLokf2QWuzFgE&s=ZLdz6
> > > OgavzNn2vSzsgyL1IB6MbK7hPKavOYwbLhyTPU&e=
> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > >
> >
> 3A__lore%26d%3DDwIDAw%26c%3DjOURTkCZzT8tVB5xPEYIm3YJGoxoTaQs
> > > QPzPKJGaWbo%26r%3DBJxhacqqa4K1PJGm6_-
> > >
> >
> 862rdSP13_P6LVp7j_9l1xmg%26m%3DlNXu2xwvyxEZ3PzoVmXMBXXS55jsmf
> > >
> >
> DicuQFJqkIOH4%26s%3D_5VDNCRQdA7AhsvvZ3TJJtQZ2iBp9c9tFHIleTYT_ZM
> > >
> >
> %26e%3D&amp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5f
> > >
> >
> a241f9634692c03908d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7
> > >
> >
> C0%7C0%7C637417997272974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi
> > >
> >
> MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C100
> > >
> >
> 0&amp;sdata=OEgYlw%2F1YP0C%2FnWBRQUxwBH56mGOJxYMWSQ%2Fj1Y
> > > 9f6Q%3D&amp;reserved=0 .
> > > > >>> kernel.org/linux-
> > > > >>>
> > > iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> > > > >>> B1310.namprd10.prod.outlook.com
> > > > >>>
> > >
> >
> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > > > >>>
> > >
> >
> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > > > >>>
> > >
> >
> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > > > >>>
> > >
> >
> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > > > >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > > > >>> Signed-off-by: Will Deacon <will@kernel.org>
> > > > >>> ---
> > > > >>>
> > > > >>> Hi all,
> > > > >>>
> > > > >>> Since Joerg is away at the moment, I'm posting this to try 
> > > > >>> to make some progress with the thread in the Link: tag.
> > > > >> + Felix
> > > > >>
> > > > >> What system is this?  Can you provide more details?  Does a 
> > > > >> sbios update fix this?  Disabling ATS for all Ravens will 
> > > > >> break GPU compute for a lot of people.  I'd prefer to just 
> > > > >> black list this particular system (e.g., just SSIDs or revision) if possible.
> > > >
> > > > +Ray
> > > >
> > > > There are already many systems where the IOMMU is disabled in 
> > > > the BIOS, or the CRAT table reporting the APU compute 
> > > > capabilities is broken. Ray has been working on a fallback to 
> > > > make APUs behave like dGPUs on such systems. That should also 
> > > > cover this case where ATS is blacklisted. That said, it affects 
> > > > the programming model, because we don't support the unified and 
> > > > coherent memory model on dGPUs like we do on APUs with IOMMUv2.
> > > > So it would be good to
> make
> > > > the conditions for this workaround as narrow as possible.
> > >
> > > Yes, besides the comments from Alex and Felix, may we get your 
> > > firmware version (SMC firmware which is from SBIOS) and device id?
> > >
> > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > > >>> timeout, signaled seq=1, emitted seq=3
> > >
> > > It looks only gfx ib test passed, and fails to lanuch desktop, am I right?
> > >
> > > We would like to see whether it is Raven, Raven kicker (new 
> > > Raven), or Picasso. In our side, per the internal test result, we 
> > > didn't see the similiar issue on Raven kicker and Picasso platform.
> > >
> > > Thanks,
> > > Ray
> > >
> > > >
> > > > These are the relevant changes in KFD and Thunk for reference:
> > > >
> > > > ### KFD ###
> > > >
> > > > commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> > > > Author: Huang Rui <ray.huang@amd.com>
> > > > Date:   Tue Aug 18 14:54:23 2020 +0800
> > > >
> > > >      drm/amdkfd: implement the dGPU fallback path for apu (v6)
> > > >
> > > >      We still have a few iommu issues which need to address, so 
> > > > force raven
> > > >      as "dgpu" path for the moment.
> > > >
> > > >      This is to add the fallback path to bypass IOMMU if IOMMU
> > > > v2 is disabled
> > > >      or ACPI CRAT table not correct.
> > > >
> > > >      v2: Use ignore_crat parameter to decide whether it will go 
> > > > with IOMMUv2.
> > > >      v3: Align with existed thunk, don't change the way of 
> > > > raven, only renoir
> > > >          will use "dgpu" path by default.
> > > >      v4: don't update global ignore_crat in the driver, and 
> > > > revise fallback
> > > >          function if CRAT is broken.
> > > >      v5: refine acpi crat good but no iommu support case, and 
> > > > rename the
> > > >          title.
> > > >      v6: fix the issue of dGPU initialized firstly, just modify 
> > > > the report
> > > >          value in the node_show().
> > > >
> > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > >      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
> > > >      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> > > >
> > > > ### Thunk ###
> > > >
> > > > commit e32482fa4b9ca398c8bdc303920abfd672592764
> > > > Author: Huang Rui <ray.huang@amd.com>
> > > > Date:   Tue Aug 18 18:54:05 2020 +0800
> > > >
> > > >      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> > > >
> > > >      Whether use dgpu path will check the props which exposed 
> > > > from
> > kernel.
> > > >      We won't need hard code in the ASIC table.
> > > >
> > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > >      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> > > >
> > > > commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> > > > Author: Huang Rui <ray.huang@amd.com>
> > > > Date:   Thu Jul 30 10:22:23 2020 +0800
> > > >
> > > >      libhsakmt: implement the method that using flag which 
> > > > exposed by kfd to configure is_dgpu
> > > >
> > > >      KFD already implemented the fallback path for APU. Thunk 
> > > > will use flag
> > > >      which exposed by kfd to configure is_dgpu instead of 
> > > > hardcode
> > before.
> > > >
> > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > >      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> > > >
> > > > Regards,
> > > >    Felix
> > > >
> > > >
> > > > > Cheers, Alex. I'll have to defer to Edgar for the details, as 
> > > > > my understanding from the original thread over at:
> > > > >
> > > > >
> > >
> >
> https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.p
> rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Furld&d=DwIFAw&c=jOU
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP1
> 3_P6LVp7j_9l1xmg&m=BIpm40CYGVSJNrmoqPI4DeIayU0tYU2D5NpRwfbkZvA&s=tmsZ3
> ihrSXZ3g6wdJ2maxU9mJ1TGcRxd91z9IQTP00A&e=
> efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__nam11.safelinks.p&amp;data=04%7C01%7CAlexander.Deucher%40amd
> .com%7C9194a443d95c4ffcb7f708d891ed0889%7C3dd8961fe4884e608e11a82
> d994e183d%7C0%7C1%7C637419794843309283%7CUnknown%7CTWFpbGZsb
> 3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0
> %3D%7C1000&amp;sdata=4JGSwn7au4u%2FBB69mmq0%2BrWfVG12sEyd5H
> oBUeiut9o%3D&amp;reserved=0
> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Furld&d=DwIFAw&c=jOU
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP1
> > 3_P6LVp7j_9l1xmg&m=ZhN0Jau6oCc4cnz64IhGK2-
> XDiD5D_6vW6ZYbifWYF0&s=ndvE-
> > ezxTBweMMUjyMWdiCyPB6GDIS_eWs0kmZwqtpY&e=
> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > 3A__nam11.safelinks.p&amp
> > >
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C1d797071822d47ce6
> > c9808d8
> > >
> >
> 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
> > 3633797
> > >
> >
> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> > zIiLCJBTiI
> > >
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> > sj6eMk3
> > > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > 252Fur&d=DwIFAw&c=jOURT
> > >
> kCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > 862rdSP13_
> > > P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> > udp1CLokf2QWuzFgE&s=IPZRolk
> > > y3TYlbWPsOkY37MbDdzwhc1b_LaE6JkaOkOo&e=
> > > > > ldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > 3A__lore.kernel.org&a
> > > > >
> > >
> >
> mp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5fa241f963469
> > > 2c039
> > > > >
> > >
> >
> 08d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63741
> > > 79972
> > > > >
> > >
> >
> 72974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> > > V2luMzI
> > > > >
> > >
> >
> iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=iKTPucGQqcRXET
> > > QZiQz
> > > > > j90WdJeCYDytdZHJ1ZiUyR%2FM%3D&amp;reserved=0
> > > > > _linux-2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-
> > > 40MWHPR10MB131
> > > > >
> > >
> >
> 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3Y
> > > JGoxo
> > > > > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > 862rdSP13_P6LVp7j_9l1xmg&m=lNXu
> > > > >
> > >
> >
> 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU
> > > 60y21
> > > > > ijWZmZ8xmOK1cO_O0&e=
> > > > >
> > > > > is that this is a board developed by his company.
> > > > >
> > > > > Edgar -- please can you answer Alex's questions?
> > > > >
> > > > > Will

[-- Attachment #2: 0001-PCI-quirks-Add-an-ATS-quirk-for-a-Picasso-APU_customized_nr2.patch --]
[-- Type: application/octet-stream, Size: 1658 bytes --]

From 4e9e80150dc4d736b833137d558e126f44115905 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 25 Nov 2020 10:57:15 -0500
Subject: [PATCH] PCI: quirks: Add an ATS quirk for a Picasso APU

This is very specific to a particular platform, because
ATS is required for GPU compute and this is not known
to be an issue on any other Picasso platforms.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/pci/quirks.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index f70692ac79c5..d6e3845d5d04 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5164,6 +5164,17 @@ static void quirk_amd_harvest_no_ats(struct pci_dev *pdev)
 	    (pdev->device == 0x7340 && pdev->revision != 0xc5))
 		return;
 
+	if (pdev->device == 0x15d8) {
+		if (pdev->revision == 0xcf &&
+		    pdev->subsystem_vendor == 0xea50 &&
+		    (pdev->subsystem_device == 0xce19 ||
+			 pdev->subsystem_device == 0xcc10 ||
+			 pdev->subsystem_device == 0xcc08
+			))
+			goto no_ats;
+		else
+			return;
+	}
+
+no_ats:
 	pci_info(pdev, "disabling ATS\n");
 	pdev->ats_cap = 0;
 }
@@ -5176,6 +5187,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, quirk_amd_harvest_no_ats);
 /* AMD Navi14 dGPU */
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats);
+/* AMD Raven platform iGPU */
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, quirk_amd_harvest_no_ats);
 #endif /* CONFIG_PCI_ATS */
 
 /* Freescale PCIe doesn't support MSI in RC mode */
-- 
2.25.4

RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Deucher, Alexander]

[AMD Public Use]

> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>
> Sent: Wednesday, December 9, 2020 2:59 AM
> To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; 
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> Alex,
> 
> I had to revise the patch. Please see attachment. It is actually two 
> more SSIDs affected to that.

Other than some minor whitespace issues, the patch looks fine to me.  Please align the subsystem_device lines and put the closing parenthesis on the same line as the last check.

Thanks!

Alex

> 
> Best regards,
> Edgar
> 
> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> Sent: Dienstag, 8. Dezember 2020 09:23
> To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang, Ray'
> <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
> Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org' 
> <linux- kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org' <linux- 
> pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org'
> <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas'
> <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu, 
> Changfeng' <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> Applied the patch as in attachment. Verified that ATS for GPU-Device 
> had been disabled. See attachment "dmesg_ATS.log".
> 
> Was running that build over night successfully.
> 
> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> Sent: Montag, 7. Dezember 2020 05:53
> To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; 
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> Hi Alex,
> 
> I believe in the patch file, this
> +		    (pdev->subsystem_device == 0x0c19 ||
> +		     pdev->subsystem_device == 0x0c10))
> 
> Has to be changed to:
> +		    (pdev->subsystem_device == 0xce19 ||
> +		     pdev->subsystem_device == 0xcc10))
> 
> Because our SSIDs are "ea50:ce19" and "ea50:cc10" respectively and 
> another one would "ea50:cc08".
> 
> I will apply that patch and feedback the results soon plus the patch 
> file that I actually had applied.
> 
> 
> -----Original Message-----
> From: Deucher, Alexander <Alexander.Deucher@amd.com>
> Sent: Montag, 30. November 2020 19:36
> To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; 
> Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; 
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> [AMD Public Use]
> 
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>
> > Sent: Thursday, November 26, 2020 4:24 AM
> > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > Alex,
> >
> > This is pretty much the same patch as what I have received from 
> > Joerg previously, except that it is tied to the particular Emerson 
> > platform and its derivatives (listed with Subsystem IDs).
> 
> Right.  As per my original point, I don't want to disable ATS on all 
> Picasso chips because doing so would break GPU compute on them, so I'd 
> like to apply this quirk as narrowly as possible.
> 
> >
> > Below patch was what Joerg provided me and I successfully tested.
> >
> > This diff to the kernel should do that:
> >
> > diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 
> > f70692ac79c5..3911b0ec57ba 100644
> > --- a/drivers/pci/quirks.c
> > +++ b/drivers/pci/quirks.c
> > @@ -5176,6 +5176,8 @@
> DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI,
> > 0x6900, quirk_amd_harvest_no_ats);
> > DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, 
> > quirk_amd_harvest_no_ats);
> >  /* AMD Navi14 dGPU */
> >  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, 
> > quirk_amd_harvest_no_ats);
> > +/* AMD Raven platform iGPU */
> > +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, 
> > +quirk_amd_harvest_no_ats);
> >  #endif /* CONFIG_PCI_ATS */
> >
> >  /* Freescale PCIe doesn't support MSI in RC mode */
> >
> > So far I have seen this issue on two instances of this chip, but I 
> > must admit that I did test only two of them to this extent, so I 
> > guess it is not a bad chip in particular, but the chips we use are 
> > from the same production lot, so it might be a systematical problem 
> > of that
> production lot?
> >
> > UEFI-Setup shows:
> > Processor Family: 17h
> > Procossor Model: 20h - 2Fh
> > CPUID: 00820F01
> > Microcode Patch Level: 8200103
> >
> > Looking at the chip-die I found that this is a fully qualified IP 
> > Silicon (according to Ryzen Embedded R1000 SOC Interlock).
> > YE1305C9T20FG
> > BI2015SUY
> > 9JB6496P00123
> > 2016 AMD
> > DIFFUSED IN USA
> > MADE IN CHINA
> >
> > Currently used SBIOS is a branch from "EmbeddedPI-FP5 1.2.0.3RC3".
> >
> > In the future our SBIOS might merge with EmbeddedPI-FP5_1.2.0.5RC3.
> >
> 
> I think it's more likely an sbios issue, so hopefully the new release fixes it.
> 
> Alex
> 
> >
> >
> >
> > -----Original Message-----
> > From: Deucher, Alexander <Alexander.Deucher@amd.com>
> > Sent: Mittwoch, 25. November 2020 17:08
> > To: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>;
> > Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > [AMD Public Use]
> >
> > > -----Original Message-----
> > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > <Edgar.Merger@emerson.com>
> > > Sent: Wednesday, November 25, 2020 5:04 AM
> > > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > as broken
> > >
> > > I do have also other problems with this unit, when IOMMU is 
> > > enabled and pci=noats is not set as kernel parameter.
> > >
> > > [ 2004.265906] amdgpu 0000:0b:00.0: [drm:amdgpu_ib_ring_tests 
> > > [amdgpu]]
> > > *ERROR* IB test failed on gfx (-110).
> > > [ 2004.266024] [drm:amdgpu_device_delayed_init_work_handler
> > [amdgpu]]
> > > *ERROR* ib ring test failed (-110).
> > >
> >
> > Is this seen on all instances of this chip or only specific silicon?
> > I.e., could this be a bad chip?  Would it be possible to test a 
> > newer sbios?  I think the attached patch should work if we can't get 
> > it fixed on the platform side.  It should only enable the quirk on 
> > your
> particular platform.
> >
> > Alex
> >
> >
> > > -----Original Message-----
> > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > Sent: Mittwoch, 25. November 2020 10:16
> > > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang, Ray'
> > > <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
> > > Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org'
> > > <linux- kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org' 
> > > <linux- pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org'
> > > <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas'
> > > <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu, 
> > > Changfeng' <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > as broken
> > >
> > > Remark:
> > >
> > > Systems with R1305G APU (which show the issue) have the following
> > > VGA-
> > > Controller:
> > > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > > [AMD/ATI] Picasso (rev cf)
> > >
> > > Systems with V1404I APU (which do not show the issue) have the 
> > > following
> > > VGA-Controller:
> > > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > > [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile 
> > > Series] (rev 83)
> > >
> > > "rev cf" vs. "ref 83" is probably what you where referring to with 
> > > PCI Revision ID.
> > >
> > > -----Original Message-----
> > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > Sent: Mittwoch, 25. November 2020 07:05
> > > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; Huang, Ray 
> > > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > as broken
> > >
> > > I see that problem only on systems that use a R1305G APU
> > >
> > > sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info
> > >
> > > shows
> > >
> > > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > > version: 0, firmware version: 0x00000000 MC feature version: 0, 
> > > firmware
> > version:
> > > 0x00000000 ME feature version: 50, firmware version: 0x000000a3 
> > > PFP feature version: 50, firmware version: 0x000000bb CE feature version:
> > > 50, firmware version: 0x0000004f RLC feature version: 1, firmware
> version:
> > > 0x00000049 RLC SRLC feature version: 1, firmware version: 
> > > 0x00000001 RLC SRLG feature version: 1, firmware version: 
> > > 0x00000001 RLC SRLS feature
> > > version: 1, firmware version: 0x00000001 MEC feature version: 50, 
> > > firmware
> > > version: 0x000001b5
> > > MEC2 feature version: 50, firmware version: 0x000001b5 SOS feature
> > version:
> > > 0, firmware version: 0x00000000 ASD feature version: 0, firmware
> version:
> > > 0x21000030 TA XGMI feature version: 0, firmware version: 
> > > 0x00000000 TA RAS feature version: 0, firmware version: 0x00000000 
> > > SMC feature
> > > version: 0, firmware version: 0x00002527
> > > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN 
> > > feature
> > > version: 0, firmware version: 0x0110901c DMCU feature version: 0, 
> > > firmware
> > > version: 0x00000001 VBIOS version: 113-RAVEN2-117
> > >
> > > We are also using V1404I APU on the same boards and I haven´t seen 
> > > the issue on those boards
> > >
> > > These boards give me slightly different info: sudo cat 
> > > /sys/kernel/debug/dri/0/amdgpu_firmware_info
> > >
> > > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > > version: 0, firmware version: 0x00000000 MC feature version: 0, 
> > > firmware
> > version:
> > > 0x00000000 ME feature version: 47, firmware version: 0x000000a2 
> > > PFP feature version: 47, firmware version: 0x000000b9 CE feature version:
> > > 47, firmware version: 0x0000004e RLC feature version: 1, firmware
> version:
> > > 0x00000213 RLC SRLC feature version: 1, firmware version: 
> > > 0x00000001 RLC SRLG feature version: 1, firmware version: 
> > > 0x00000001 RLC SRLS feature
> > > version: 1, firmware version: 0x00000001 MEC feature version: 47, 
> > > firmware
> > > version: 0x000001ab
> > > MEC2 feature version: 47, firmware version: 0x000001ab SOS feature
> > version:
> > > 0, firmware version: 0x00000000 ASD feature version: 0, firmware
> version:
> > > 0x21000013 TA XGMI feature version: 0, firmware version: 
> > > 0x00000000 TA RAS feature version: 0, firmware version: 0x00000000 
> > > SMC feature
> > > version: 0, firmware version: 0x00001e5b
> > > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN 
> > > feature
> > > version: 0, firmware version: 0x0110901c DMCU feature version: 0, 
> > > firmware
> > > version: 0x00000000 VBIOS version: 113-RAVEN-116
> > >
> > >
> > >
> > >
> > > 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] 
> > > Raven/Raven2 Root Complex
> > > 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > IOMMU
> > > 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h 
> > > (Models
> > > 00h-1fh) PCIe Dummy Host Bridge
> > > 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] 
> > > Raven/Raven2 PCIe GPP Bridge [6:0]
> > > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > > Switch Upstream (PCIE SW.US)
> > > 00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] 
> > > Raven/Raven2 PCIe GPP Bridge [6:0]
> > > 00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > > Switch Upstream (PCIE SW.US)
> > > 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h 
> > > (Models
> > > 00h-1fh) PCIe Dummy Host Bridge
> > > 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] 
> > > Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A
> > > 00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] 
> > > Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus B
> > > 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus 
> > > Controller (rev 61)
> > > 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC 
> > > Bridge (rev
> > > 51)
> > > 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] 
> > > Raven/Raven2 Device 24: Function 0
> > > 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] 
> > > Raven/Raven2 Device 24: Function 1
> > > 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] 
> > > Raven/Raven2 Device 24: Function 2
> > > 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] 
> > > Raven/Raven2 Device 24: Function 3
> > > 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] 
> > > Raven/Raven2 Device 24: Function 4
> > > 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] 
> > > Raven/Raven2 Device 24: Function 5
> > > 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] 
> > > Raven/Raven2 Device 24: Function 6
> > > 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] 
> > > Raven/Raven2 Device 24: Function 7
> > > 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> > > RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0e)
> > > 01:00.1 Serial controller: Realtek Semiconductor Co., Ltd. Device 
> > > 816a (rev 0e)
> > > 01:00.2 Serial controller: Realtek Semiconductor Co., Ltd. Device 
> > > 816b (rev 0e)
> > > 01:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 
> > > 816c (rev 0e)
> > > 01:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 
> > > 816d (rev 0e)
> > > 02:00.0 Ethernet controller: Intel Corporation I210 Gigabit 
> > > Network Connection (rev 03)
> > > 03:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > 6-Port/8- Lane Packet Switch
> > > 04:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > 6-Port/8- Lane Packet Switch
> > > 04:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > 6-Port/8- Lane Packet Switch
> > > 04:03.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > 6-Port/8- Lane Packet Switch
> > > 04:04.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > 6-Port/8- Lane Packet Switch
> > > 04:05.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > 6-Port/8- Lane Packet Switch
> > > 06:00.0 Serial controller: Asix Electronics Corporation Device 
> > > 9100
> > > 06:00.1 Serial controller: Asix Electronics Corporation Device 
> > > 9100
> > > 07:00.0 Ethernet controller: Intel Corporation I210 Gigabit 
> > > Network Connection (rev 03)
> > > 0a:00.0 Ethernet controller: Intel Corporation I210 Gigabit 
> > > Network Connection (rev 03)
> > > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > > [AMD/ATI] Picasso (rev cf)
> > > 0b:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] 
> > > Raven/Raven2/Fenghuang HDMI/DP Audio Controller
> > > 0b:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] 
> > > Family 17h (Models 10h-1fh) Platform Security Processor
> > > 0b:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven2 
> > > USB
> > > 3.1
> > > 0b:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] 
> > > Raven/Raven2/FireFlight/Renoir Audio Processor
> > > 0b:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc.
> > > [AMD] Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver
> > > 0c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH 
> > > SATA Controller [AHCI mode] (rev 61)
> > >
> > > PCI Revision ID is 06 I believe. Got that from this lspci -xx
> > >
> > > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > > Switch Upstream (PCIE SW.US)
> > > 00: 22 10 5d 14 07 04 10 00 00 00 04 06 10 00 81 00
> > > 10: 00 00 00 00 00 00 00 00 00 02 02 00 f1 01 00 00
> > > 20: e0 fc e0 fc f1 ff 01 00 00 00 00 00 00 00 00 00
> > > 30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 12 00
> > > 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > 50: 01 58 03 c8 00 00 00 00 10 a0 42 01 22 80 00 00
> > > 60: 1f 29 00 00 13 38 73 03 42 00 11 30 00 00 04 00
> > > 70: 00 00 40 01 18 00 01 00 00 00 00 00 bf 01 70 00
> > > 80: 06 00 00 00 0e 00 00 00 03 00 01 00 00 00 00 00
> > > 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > a0: 05 c0 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00
> > > b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > c0: 0d c8 00 00 22 10 34 12 08 00 03 a8 00 00 00 00
> > > d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > e0: 00 00 00 00 4c 8a 05 00 00 00 00 00 00 00 00 00
> > > f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > >
> > > -----Original Message-----
> > > From: Deucher, Alexander <Alexander.Deucher@amd.com>
> > > Sent: Dienstag, 24. November 2020 16:06
> > > To: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > <Edgar.Merger@emerson.com>;
> > > Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > > <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > as broken
> > >
> > > [AMD Public Use]
> > >
> > > > -----Original Message-----
> > > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > <Edgar.Merger@emerson.com>
> > > > Sent: Tuesday, November 24, 2020 2:29 AM
> > > > To: Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > > > <Felix.Kuehling@amd.com>
> > > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; 
> > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > > <jroedel@suse.de>; Zhu,
> > > Changfeng
> > > > <Changfeng.Zhu@amd.com>
> > > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > > as broken
> > > >
> > > > Module Version : PiccasoCpu 10
> > > > AGESA Version   : PiccasoPI 100A
> > > >
> > > > I did not try to enter the system in any other way (like via 
> > > > ssh) than via Desktop.
> > >
> > > You can get this information from the amdgpu driver.  E.g., sudo 
> > > cat /sys/kernel/debug/dri/0/amdgpu_firmware_info .  Also what is 
> > > the PCI revision id of your chip (from lspci)?  Also are you just 
> > > seeing this on specific versions of the sbios?
> > >
> > > Thanks,
> > >
> > > Alex
> > >
> > >
> > > >
> > > > -----Original Message-----
> > > > From: Huang Rui <ray.huang@amd.com>
> > > > Sent: Dienstag, 24. November 2020 07:43
> > > > To: Kuehling, Felix <Felix.Kuehling@amd.com>
> > > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org; 
> > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > Bjorn Helgaas <bhelgaas@google.com>; Merger, Edgar
> [AUTOSOL/MAS/AUGS]
> > > > <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>;
> > > Changfeng
> > > > Zhu <changfeng.zhu@amd.com>
> > > > Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> > > broken
> > > >
> > > > On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> > > > > On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > > > > > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander
> > wrote:
> > > > > >> [AMD Public Use]
> > > > > >>
> > > > > >>> -----Original Message-----
> > > > > >>> From: Will Deacon <will@kernel.org>
> > > > > >>> Sent: Monday, November 23, 2020 8:44 AM
> > > > > >>> To: linux-kernel@vger.kernel.org
> > > > > >>> Cc: linux-pci@vger.kernel.org; 
> > > > > >>> iommu@lists.linux-foundation.org; Will Deacon 
> > > > > >>> <will@kernel.org>; Bjorn Helgaas <bhelgaas@google.com>; 
> > > > > >>> Deucher, Alexander <Alexander.Deucher@amd.com>; Edgar
> > Merger
> > > > > >>> <Edgar.Merger@emerson.com>; Joerg Roedel
> <jroedel@suse.de>
> > > > > >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > > > > >>>
> > > > > >>> Edgar Merger reports that the AMD Raven GPU does not work 
> > > > > >>> reliably on his system when the IOMMU is enabled:
> > > > > >>>
> > > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > > > >>> timeout, signaled seq=1, emitted seq=3
> > > > > >>>    | [...]
> > > > > >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> > > > > >>>    | AMD-Vi: Completion-Wait loop timed out
> > > > > >>>    | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> > > > > >>> device=0b:00.0 address=0x38edc0970]
> > > > > >>>
> > > > > >>> This is indicative of a hardware/platform configuration 
> > > > > >>> issue so, since disabling ATS has been shown to resolve 
> > > > > >>> the problem, add a quirk to match this particular device 
> > > > > >>> while Edgar follows-up with AMD
> > > > for more information.
> > > > > >>>
> > > > > >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> > > > > >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> > > > > >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > > > > >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> > > > > >>> Link:
> > > > > >>>
> > > >
> > >
> >
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Furld
> > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__nam11.safelinks.p&amp
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7Cb29c13165c224c3794
> 2208d8
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> 9c185604%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637430975
> 6442408
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> 26%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> zIiLCJBTiI
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=2uB%2FmMkuxi%2Bc2Xb
> MD%2FhKpcw
> > QUxH49QfbCShTd227RDw%3D&amp;reserved=0
> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Furld&d=DwIFAw&c=jOU
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP1
> >
> 3_P6LVp7j_9l1xmg&m=BIpm40CYGVSJNrmoqPI4DeIayU0tYU2D5NpRwfbkZv
> A&s=tmsZ3
> > ihrSXZ3g6wdJ2maxU9mJ1TGcRxd91z9IQTP00A&e=
> > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> >
> 3A__nam11.safelinks.p&amp;data=04%7C01%7CAlexander.Deucher%40amd
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> %3D%7C1000&amp;sdata=4JGSwn7au4u%2FBB69mmq0%2BrWfVG12sEyd5H
> > oBUeiut9o%3D&amp;reserved=0
> > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > 252Furld&d=DwIFAw&c=jOU
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> > 862rdSP1
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> > > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > 3A__nam11.safelinks.p&amp
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> > > >
> > >
> >
> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> > > zIiLCJBTiI
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> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
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> > > > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > > 252Furld&d=DwIFAw&c=jOU
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> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > 862rdSP1
> > > > 3_P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> > > udp1CLokf2QWuzFgE&s=ZLdz6
> > > > OgavzNn2vSzsgyL1IB6MbK7hPKavOYwbLhyTPU&e=
> > > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
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> 3A__lore%26d%3DDwIDAw%26c%3DjOURTkCZzT8tVB5xPEYIm3YJGoxoTaQs
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> >
> DicuQFJqkIOH4%26s%3D_5VDNCRQdA7AhsvvZ3TJJtQZ2iBp9c9tFHIleTYT_ZM
> > > >
> > >
> >
> %26e%3D&amp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5f
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> > >
> >
> a241f9634692c03908d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7
> > > >
> > >
> >
> C0%7C0%7C637417997272974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi
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> >
> MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C100
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> > >
> >
> 0&amp;sdata=OEgYlw%2F1YP0C%2FnWBRQUxwBH56mGOJxYMWSQ%2Fj1Y
> > > > 9f6Q%3D&amp;reserved=0 .
> > > > > >>> kernel.org/linux-
> > > > > >>>
> > > > iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> > > > > >>> B1310.namprd10.prod.outlook.com
> > > > > >>>
> > > >
> > >
> >
> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > > > > >>>
> > > >
> > >
> >
> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > > > > >>>
> > > >
> > >
> >
> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > > > > >>>
> > > >
> > >
> >
> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > > > > >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > > > > >>> Signed-off-by: Will Deacon <will@kernel.org>
> > > > > >>> ---
> > > > > >>>
> > > > > >>> Hi all,
> > > > > >>>
> > > > > >>> Since Joerg is away at the moment, I'm posting this to try 
> > > > > >>> to make some progress with the thread in the Link: tag.
> > > > > >> + Felix
> > > > > >>
> > > > > >> What system is this?  Can you provide more details?  Does a 
> > > > > >> sbios update fix this?  Disabling ATS for all Ravens will 
> > > > > >> break GPU compute for a lot of people.  I'd prefer to just 
> > > > > >> black list this particular system (e.g., just SSIDs or 
> > > > > >> revision) if
> possible.
> > > > >
> > > > > +Ray
> > > > >
> > > > > There are already many systems where the IOMMU is disabled in 
> > > > > the BIOS, or the CRAT table reporting the APU compute 
> > > > > capabilities is broken. Ray has been working on a fallback to 
> > > > > make APUs behave like dGPUs on such systems. That should also 
> > > > > cover this case where ATS is blacklisted. That said, it 
> > > > > affects the programming model, because we don't support the 
> > > > > unified and coherent memory model on dGPUs like we do on APUs 
> > > > > with
> IOMMUv2.
> > > > > So it would be good to
> > make
> > > > > the conditions for this workaround as narrow as possible.
> > > >
> > > > Yes, besides the comments from Alex and Felix, may we get your 
> > > > firmware version (SMC firmware which is from SBIOS) and device id?
> > > >
> > > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > > > >>> timeout, signaled seq=1, emitted seq=3
> > > >
> > > > It looks only gfx ib test passed, and fails to lanuch desktop, am I right?
> > > >
> > > > We would like to see whether it is Raven, Raven kicker (new 
> > > > Raven), or Picasso. In our side, per the internal test result, 
> > > > we didn't see the similiar issue on Raven kicker and Picasso platform.
> > > >
> > > > Thanks,
> > > > Ray
> > > >
> > > > >
> > > > > These are the relevant changes in KFD and Thunk for reference:
> > > > >
> > > > > ### KFD ###
> > > > >
> > > > > commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> > > > > Author: Huang Rui <ray.huang@amd.com>
> > > > > Date:   Tue Aug 18 14:54:23 2020 +0800
> > > > >
> > > > >      drm/amdkfd: implement the dGPU fallback path for apu (v6)
> > > > >
> > > > >      We still have a few iommu issues which need to address, 
> > > > > so force raven
> > > > >      as "dgpu" path for the moment.
> > > > >
> > > > >      This is to add the fallback path to bypass IOMMU if IOMMU
> > > > > v2 is disabled
> > > > >      or ACPI CRAT table not correct.
> > > > >
> > > > >      v2: Use ignore_crat parameter to decide whether it will 
> > > > > go with IOMMUv2.
> > > > >      v3: Align with existed thunk, don't change the way of 
> > > > > raven, only renoir
> > > > >          will use "dgpu" path by default.
> > > > >      v4: don't update global ignore_crat in the driver, and 
> > > > > revise fallback
> > > > >          function if CRAT is broken.
> > > > >      v5: refine acpi crat good but no iommu support case, and 
> > > > > rename the
> > > > >          title.
> > > > >      v6: fix the issue of dGPU initialized firstly, just 
> > > > > modify the report
> > > > >          value in the node_show().
> > > > >
> > > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > > >      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
> > > > >      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> > > > >
> > > > > ### Thunk ###
> > > > >
> > > > > commit e32482fa4b9ca398c8bdc303920abfd672592764
> > > > > Author: Huang Rui <ray.huang@amd.com>
> > > > > Date:   Tue Aug 18 18:54:05 2020 +0800
> > > > >
> > > > >      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> > > > >
> > > > >      Whether use dgpu path will check the props which exposed 
> > > > > from
> > > kernel.
> > > > >      We won't need hard code in the ASIC table.
> > > > >
> > > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > > >      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> > > > >
> > > > > commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> > > > > Author: Huang Rui <ray.huang@amd.com>
> > > > > Date:   Thu Jul 30 10:22:23 2020 +0800
> > > > >
> > > > >      libhsakmt: implement the method that using flag which 
> > > > > exposed by kfd to configure is_dgpu
> > > > >
> > > > >      KFD already implemented the fallback path for APU. Thunk 
> > > > > will use flag
> > > > >      which exposed by kfd to configure is_dgpu instead of 
> > > > > hardcode
> > > before.
> > > > >
> > > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > > >      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> > > > >
> > > > > Regards,
> > > > >    Felix
> > > > >
> > > > >
> > > > > > Cheers, Alex. I'll have to defer to Edgar for the details, 
> > > > > > as my understanding from the original thread over at:
> > > > > >
> > > > > >
> > > >
> > >
> >
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Furld
> > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__nam11.safelinks.p&amp
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7Cb29c13165c224c3794
> 2208d8
> >
> 9c185604%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637430975
> 6442408
> >
> 26%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> zIiLCJBTiI
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=2uB%2FmMkuxi%2Bc2Xb
> MD%2FhKpcw
> > QUxH49QfbCShTd227RDw%3D&amp;reserved=0
> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Furld&d=DwIFAw&c=jOU
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP1
> >
> 3_P6LVp7j_9l1xmg&m=BIpm40CYGVSJNrmoqPI4DeIayU0tYU2D5NpRwfbkZv
> A&s=tmsZ3
> > ihrSXZ3g6wdJ2maxU9mJ1TGcRxd91z9IQTP00A&e=
> > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> >
> 3A__nam11.safelinks.p&amp;data=04%7C01%7CAlexander.Deucher%40amd
> >
> .com%7C9194a443d95c4ffcb7f708d891ed0889%7C3dd8961fe4884e608e11a82
> >
> d994e183d%7C0%7C1%7C637419794843309283%7CUnknown%7CTWFpbGZsb
> >
> 3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0
> >
> %3D%7C1000&amp;sdata=4JGSwn7au4u%2FBB69mmq0%2BrWfVG12sEyd5H
> > oBUeiut9o%3D&amp;reserved=0
> > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > 252Furld&d=DwIFAw&c=jOU
> > >
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > 862rdSP1
> > > 3_P6LVp7j_9l1xmg&m=ZhN0Jau6oCc4cnz64IhGK2-
> > XDiD5D_6vW6ZYbifWYF0&s=ndvE-
> > > ezxTBweMMUjyMWdiCyPB6GDIS_eWs0kmZwqtpY&e=
> > > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > 3A__nam11.safelinks.p&amp
> > > >
> > >
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C1d797071822d47ce6
> > > c9808d8
> > > >
> > >
> >
> 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
> > > 3633797
> > > >
> > >
> >
> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> > > zIiLCJBTiI
> > > >
> > >
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> > > sj6eMk3
> > > > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > > 252Fur&d=DwIFAw&c=jOURT
> > > >
> > kCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > 862rdSP13_
> > > > P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> > > udp1CLokf2QWuzFgE&s=IPZRolk
> > > > y3TYlbWPsOkY37MbDdzwhc1b_LaE6JkaOkOo&e=
> > > > > > ldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > > 3A__lore.kernel.org&a
> > > > > >
> > > >
> > >
> >
> mp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5fa241f963469
> > > > 2c039
> > > > > >
> > > >
> > >
> >
> 08d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63741
> > > > 79972
> > > > > >
> > > >
> > >
> >
> 72974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> > > > V2luMzI
> > > > > >
> > > >
> > >
> >
> iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=iKTPucGQqcRXET
> > > > QZiQz
> > > > > > j90WdJeCYDytdZHJ1ZiUyR%2FM%3D&amp;reserved=0
> > > > > > _linux-
> 2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-
> > > > 40MWHPR10MB131
> > > > > >
> > > >
> > >
> >
> 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3Y
> > > > JGoxo
> > > > > > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > > 862rdSP13_P6LVp7j_9l1xmg&m=lNXu
> > > > > >
> > > >
> > >
> >
> 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU
> > > > 60y21
> > > > > > ijWZmZ8xmOK1cO_O0&e=
> > > > > >
> > > > > > is that this is a board developed by his company.
> > > > > >
> > > > > > Edgar -- please can you answer Alex's questions?
> > > > > >
> > > > > > Will

RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Merger, Edgar [AUTOSOL/MAS/AUGS]]

[-- Attachment #1: Type: text/plain, Size: 37985 bytes --]

Alright. Done that. 
This should be it finally I believe.
Which will be the initial kernel-version that incorporates that?

-----Original Message-----
From: Deucher, Alexander <Alexander.Deucher@amd.com> 
Sent: Mittwoch, 9. Dezember 2020 15:24
To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[AMD Public Use]

> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>
> Sent: Wednesday, December 9, 2020 2:59 AM
> To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> Alex,
> 
> I had to revise the patch. Please see attachment. It is actually two 
> more SSIDs affected to that.

Other than some minor whitespace issues, the patch looks fine to me.  Please align the subsystem_device lines and put the closing parenthesis on the same line as the last check.

Thanks!

Alex

> 
> Best regards,
> Edgar
> 
> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> Sent: Dienstag, 8. Dezember 2020 09:23
> To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang, Ray'
> <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
> Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org' 
> <linux- kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org' <linux- 
> pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org'
> <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas'
> <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu, 
> Changfeng' <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> Applied the patch as in attachment. Verified that ATS for GPU-Device 
> had been disabled. See attachment "dmesg_ATS.log".
> 
> Was running that build over night successfully.
> 
> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> Sent: Montag, 7. Dezember 2020 05:53
> To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> Hi Alex,
> 
> I believe in the patch file, this
> +		    (pdev->subsystem_device == 0x0c19 ||
> +		     pdev->subsystem_device == 0x0c10))
> 
> Has to be changed to:
> +		    (pdev->subsystem_device == 0xce19 ||
> +		     pdev->subsystem_device == 0xcc10))
> 
> Because our SSIDs are "ea50:ce19" and "ea50:cc10" respectively and 
> another one would "ea50:cc08".
> 
> I will apply that patch and feedback the results soon plus the patch 
> file that I actually had applied.
> 
> 
> -----Original Message-----
> From: Deucher, Alexander <Alexander.Deucher@amd.com>
> Sent: Montag, 30. November 2020 19:36
> To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; 
> Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> [AMD Public Use]
> 
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>
> > Sent: Thursday, November 26, 2020 4:24 AM
> > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > Alex,
> >
> > This is pretty much the same patch as what I have received from 
> > Joerg previously, except that it is tied to the particular Emerson 
> > platform and its derivatives (listed with Subsystem IDs).
> 
> Right.  As per my original point, I don't want to disable ATS on all 
> Picasso chips because doing so would break GPU compute on them, so I'd 
> like to apply this quirk as narrowly as possible.
> 
> >
> > Below patch was what Joerg provided me and I successfully tested.
> >
> > This diff to the kernel should do that:
> >
> > diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 
> > f70692ac79c5..3911b0ec57ba 100644
> > --- a/drivers/pci/quirks.c
> > +++ b/drivers/pci/quirks.c
> > @@ -5176,6 +5176,8 @@
> DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI,
> > 0x6900, quirk_amd_harvest_no_ats);
> > DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, 
> > quirk_amd_harvest_no_ats);
> >  /* AMD Navi14 dGPU */
> >  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, 
> > quirk_amd_harvest_no_ats);
> > +/* AMD Raven platform iGPU */
> > +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, 
> > +quirk_amd_harvest_no_ats);
> >  #endif /* CONFIG_PCI_ATS */
> >
> >  /* Freescale PCIe doesn't support MSI in RC mode */
> >
> > So far I have seen this issue on two instances of this chip, but I 
> > must admit that I did test only two of them to this extent, so I 
> > guess it is not a bad chip in particular, but the chips we use are 
> > from the same production lot, so it might be a systematical problem 
> > of that
> production lot?
> >
> > UEFI-Setup shows:
> > Processor Family: 17h
> > Procossor Model: 20h - 2Fh
> > CPUID: 00820F01
> > Microcode Patch Level: 8200103
> >
> > Looking at the chip-die I found that this is a fully qualified IP 
> > Silicon (according to Ryzen Embedded R1000 SOC Interlock).
> > YE1305C9T20FG
> > BI2015SUY
> > 9JB6496P00123
> > 2016 AMD
> > DIFFUSED IN USA
> > MADE IN CHINA
> >
> > Currently used SBIOS is a branch from "EmbeddedPI-FP5 1.2.0.3RC3".
> >
> > In the future our SBIOS might merge with EmbeddedPI-FP5_1.2.0.5RC3.
> >
> 
> I think it's more likely an sbios issue, so hopefully the new release fixes it.
> 
> Alex
> 
> >
> >
> >
> > -----Original Message-----
> > From: Deucher, Alexander <Alexander.Deucher@amd.com>
> > Sent: Mittwoch, 25. November 2020 17:08
> > To: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>;
> > Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > [AMD Public Use]
> >
> > > -----Original Message-----
> > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > <Edgar.Merger@emerson.com>
> > > Sent: Wednesday, November 25, 2020 5:04 AM
> > > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > as broken
> > >
> > > I do have also other problems with this unit, when IOMMU is 
> > > enabled and pci=noats is not set as kernel parameter.
> > >
> > > [ 2004.265906] amdgpu 0000:0b:00.0: [drm:amdgpu_ib_ring_tests 
> > > [amdgpu]]
> > > *ERROR* IB test failed on gfx (-110).
> > > [ 2004.266024] [drm:amdgpu_device_delayed_init_work_handler
> > [amdgpu]]
> > > *ERROR* ib ring test failed (-110).
> > >
> >
> > Is this seen on all instances of this chip or only specific silicon?
> > I.e., could this be a bad chip?  Would it be possible to test a 
> > newer sbios?  I think the attached patch should work if we can't get 
> > it fixed on the platform side.  It should only enable the quirk on 
> > your
> particular platform.
> >
> > Alex
> >
> >
> > > -----Original Message-----
> > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > Sent: Mittwoch, 25. November 2020 10:16
> > > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang, Ray'
> > > <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
> > > Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org'
> > > <linux- kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org' 
> > > <linux- pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org'
> > > <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas'
> > > <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu, 
> > > Changfeng' <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > as broken
> > >
> > > Remark:
> > >
> > > Systems with R1305G APU (which show the issue) have the following
> > > VGA-
> > > Controller:
> > > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > > [AMD/ATI] Picasso (rev cf)
> > >
> > > Systems with V1404I APU (which do not show the issue) have the 
> > > following
> > > VGA-Controller:
> > > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > > [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile 
> > > Series] (rev 83)
> > >
> > > "rev cf" vs. "ref 83" is probably what you where referring to with 
> > > PCI Revision ID.
> > >
> > > -----Original Message-----
> > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > Sent: Mittwoch, 25. November 2020 07:05
> > > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; Huang, Ray 
> > > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > as broken
> > >
> > > I see that problem only on systems that use a R1305G APU
> > >
> > > sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info
> > >
> > > shows
> > >
> > > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > > version: 0, firmware version: 0x00000000 MC feature version: 0, 
> > > firmware
> > version:
> > > 0x00000000 ME feature version: 50, firmware version: 0x000000a3 
> > > PFP feature version: 50, firmware version: 0x000000bb CE feature version:
> > > 50, firmware version: 0x0000004f RLC feature version: 1, firmware
> version:
> > > 0x00000049 RLC SRLC feature version: 1, firmware version: 
> > > 0x00000001 RLC SRLG feature version: 1, firmware version: 
> > > 0x00000001 RLC SRLS feature
> > > version: 1, firmware version: 0x00000001 MEC feature version: 50, 
> > > firmware
> > > version: 0x000001b5
> > > MEC2 feature version: 50, firmware version: 0x000001b5 SOS feature
> > version:
> > > 0, firmware version: 0x00000000 ASD feature version: 0, firmware
> version:
> > > 0x21000030 TA XGMI feature version: 0, firmware version: 
> > > 0x00000000 TA RAS feature version: 0, firmware version: 0x00000000 
> > > SMC feature
> > > version: 0, firmware version: 0x00002527
> > > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN 
> > > feature
> > > version: 0, firmware version: 0x0110901c DMCU feature version: 0, 
> > > firmware
> > > version: 0x00000001 VBIOS version: 113-RAVEN2-117
> > >
> > > We are also using V1404I APU on the same boards and I haven´t seen 
> > > the issue on those boards
> > >
> > > These boards give me slightly different info: sudo cat 
> > > /sys/kernel/debug/dri/0/amdgpu_firmware_info
> > >
> > > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > > version: 0, firmware version: 0x00000000 MC feature version: 0, 
> > > firmware
> > version:
> > > 0x00000000 ME feature version: 47, firmware version: 0x000000a2 
> > > PFP feature version: 47, firmware version: 0x000000b9 CE feature version:
> > > 47, firmware version: 0x0000004e RLC feature version: 1, firmware
> version:
> > > 0x00000213 RLC SRLC feature version: 1, firmware version: 
> > > 0x00000001 RLC SRLG feature version: 1, firmware version: 
> > > 0x00000001 RLC SRLS feature
> > > version: 1, firmware version: 0x00000001 MEC feature version: 47, 
> > > firmware
> > > version: 0x000001ab
> > > MEC2 feature version: 47, firmware version: 0x000001ab SOS feature
> > version:
> > > 0, firmware version: 0x00000000 ASD feature version: 0, firmware
> version:
> > > 0x21000013 TA XGMI feature version: 0, firmware version: 
> > > 0x00000000 TA RAS feature version: 0, firmware version: 0x00000000 
> > > SMC feature
> > > version: 0, firmware version: 0x00001e5b
> > > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN 
> > > feature
> > > version: 0, firmware version: 0x0110901c DMCU feature version: 0, 
> > > firmware
> > > version: 0x00000000 VBIOS version: 113-RAVEN-116
> > >
> > >
> > >
> > >
> > > 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > Raven/Raven2 Root Complex
> > > 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > IOMMU
> > > 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h 
> > > (Models
> > > 00h-1fh) PCIe Dummy Host Bridge
> > > 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD]
> > > Raven/Raven2 PCIe GPP Bridge [6:0]
> > > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > > Switch Upstream (PCIE SW.US)
> > > 00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD]
> > > Raven/Raven2 PCIe GPP Bridge [6:0]
> > > 00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > > Switch Upstream (PCIE SW.US)
> > > 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h 
> > > (Models
> > > 00h-1fh) PCIe Dummy Host Bridge
> > > 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD]
> > > Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A
> > > 00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD]
> > > Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus B
> > > 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus 
> > > Controller (rev 61)
> > > 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC 
> > > Bridge (rev
> > > 51)
> > > 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > Raven/Raven2 Device 24: Function 0
> > > 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > Raven/Raven2 Device 24: Function 1
> > > 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > Raven/Raven2 Device 24: Function 2
> > > 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > Raven/Raven2 Device 24: Function 3
> > > 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > Raven/Raven2 Device 24: Function 4
> > > 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > Raven/Raven2 Device 24: Function 5
> > > 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > Raven/Raven2 Device 24: Function 6
> > > 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > Raven/Raven2 Device 24: Function 7
> > > 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> > > RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0e)
> > > 01:00.1 Serial controller: Realtek Semiconductor Co., Ltd. Device 
> > > 816a (rev 0e)
> > > 01:00.2 Serial controller: Realtek Semiconductor Co., Ltd. Device 
> > > 816b (rev 0e)
> > > 01:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 
> > > 816c (rev 0e)
> > > 01:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 
> > > 816d (rev 0e)
> > > 02:00.0 Ethernet controller: Intel Corporation I210 Gigabit 
> > > Network Connection (rev 03)
> > > 03:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > 6-Port/8- Lane Packet Switch
> > > 04:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > 6-Port/8- Lane Packet Switch
> > > 04:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > 6-Port/8- Lane Packet Switch
> > > 04:03.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > 6-Port/8- Lane Packet Switch
> > > 04:04.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > 6-Port/8- Lane Packet Switch
> > > 04:05.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > 6-Port/8- Lane Packet Switch
> > > 06:00.0 Serial controller: Asix Electronics Corporation Device
> > > 9100
> > > 06:00.1 Serial controller: Asix Electronics Corporation Device
> > > 9100
> > > 07:00.0 Ethernet controller: Intel Corporation I210 Gigabit 
> > > Network Connection (rev 03)
> > > 0a:00.0 Ethernet controller: Intel Corporation I210 Gigabit 
> > > Network Connection (rev 03)
> > > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > > [AMD/ATI] Picasso (rev cf)
> > > 0b:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] 
> > > Raven/Raven2/Fenghuang HDMI/DP Audio Controller
> > > 0b:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] 
> > > Family 17h (Models 10h-1fh) Platform Security Processor
> > > 0b:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven2 
> > > USB
> > > 3.1
> > > 0b:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] 
> > > Raven/Raven2/FireFlight/Renoir Audio Processor
> > > 0b:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc.
> > > [AMD] Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver
> > > 0c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH 
> > > SATA Controller [AHCI mode] (rev 61)
> > >
> > > PCI Revision ID is 06 I believe. Got that from this lspci -xx
> > >
> > > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > > Switch Upstream (PCIE SW.US)
> > > 00: 22 10 5d 14 07 04 10 00 00 00 04 06 10 00 81 00
> > > 10: 00 00 00 00 00 00 00 00 00 02 02 00 f1 01 00 00
> > > 20: e0 fc e0 fc f1 ff 01 00 00 00 00 00 00 00 00 00
> > > 30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 12 00
> > > 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > 50: 01 58 03 c8 00 00 00 00 10 a0 42 01 22 80 00 00
> > > 60: 1f 29 00 00 13 38 73 03 42 00 11 30 00 00 04 00
> > > 70: 00 00 40 01 18 00 01 00 00 00 00 00 bf 01 70 00
> > > 80: 06 00 00 00 0e 00 00 00 03 00 01 00 00 00 00 00
> > > 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > a0: 05 c0 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00
> > > b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > c0: 0d c8 00 00 22 10 34 12 08 00 03 a8 00 00 00 00
> > > d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > e0: 00 00 00 00 4c 8a 05 00 00 00 00 00 00 00 00 00
> > > f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > >
> > > -----Original Message-----
> > > From: Deucher, Alexander <Alexander.Deucher@amd.com>
> > > Sent: Dienstag, 24. November 2020 16:06
> > > To: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > <Edgar.Merger@emerson.com>;
> > > Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > > <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > as broken
> > >
> > > [AMD Public Use]
> > >
> > > > -----Original Message-----
> > > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > <Edgar.Merger@emerson.com>
> > > > Sent: Tuesday, November 24, 2020 2:29 AM
> > > > To: Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > > > <Felix.Kuehling@amd.com>
> > > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org;
> > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > > <jroedel@suse.de>; Zhu,
> > > Changfeng
> > > > <Changfeng.Zhu@amd.com>
> > > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > > as broken
> > > >
> > > > Module Version : PiccasoCpu 10
> > > > AGESA Version   : PiccasoPI 100A
> > > >
> > > > I did not try to enter the system in any other way (like via
> > > > ssh) than via Desktop.
> > >
> > > You can get this information from the amdgpu driver.  E.g., sudo 
> > > cat /sys/kernel/debug/dri/0/amdgpu_firmware_info .  Also what is 
> > > the PCI revision id of your chip (from lspci)?  Also are you just 
> > > seeing this on specific versions of the sbios?
> > >
> > > Thanks,
> > >
> > > Alex
> > >
> > >
> > > >
> > > > -----Original Message-----
> > > > From: Huang Rui <ray.huang@amd.com>
> > > > Sent: Dienstag, 24. November 2020 07:43
> > > > To: Kuehling, Felix <Felix.Kuehling@amd.com>
> > > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org;
> > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > Bjorn Helgaas <bhelgaas@google.com>; Merger, Edgar
> [AUTOSOL/MAS/AUGS]
> > > > <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>;
> > > Changfeng
> > > > Zhu <changfeng.zhu@amd.com>
> > > > Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as
> > > broken
> > > >
> > > > On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> > > > > On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > > > > > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander
> > wrote:
> > > > > >> [AMD Public Use]
> > > > > >>
> > > > > >>> -----Original Message-----
> > > > > >>> From: Will Deacon <will@kernel.org>
> > > > > >>> Sent: Monday, November 23, 2020 8:44 AM
> > > > > >>> To: linux-kernel@vger.kernel.org
> > > > > >>> Cc: linux-pci@vger.kernel.org; 
> > > > > >>> iommu@lists.linux-foundation.org; Will Deacon 
> > > > > >>> <will@kernel.org>; Bjorn Helgaas <bhelgaas@google.com>; 
> > > > > >>> Deucher, Alexander <Alexander.Deucher@amd.com>; Edgar
> > Merger
> > > > > >>> <Edgar.Merger@emerson.com>; Joerg Roedel
> <jroedel@suse.de>
> > > > > >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > > > > >>>
> > > > > >>> Edgar Merger reports that the AMD Raven GPU does not work 
> > > > > >>> reliably on his system when the IOMMU is enabled:
> > > > > >>>
> > > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > > > >>> timeout, signaled seq=1, emitted seq=3
> > > > > >>>    | [...]
> > > > > >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> > > > > >>>    | AMD-Vi: Completion-Wait loop timed out
> > > > > >>>    | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> > > > > >>> device=0b:00.0 address=0x38edc0970]
> > > > > >>>
> > > > > >>> This is indicative of a hardware/platform configuration 
> > > > > >>> issue so, since disabling ATS has been shown to resolve 
> > > > > >>> the problem, add a quirk to match this particular device 
> > > > > >>> while Edgar follows-up with AMD
> > > > for more information.
> > > > > >>>
> > > > > >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> > > > > >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> > > > > >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > > > > >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> > > > > >>> Link:
> > > > > >>>
> > > >
> > >
> >
> https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.p
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> O0SPjN4j09x39L4oAOOQBED0Rc2xBoAmYeK7_o&e=
> > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__nam11.safelinks.p&amp
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7Cb29c13165c224c3794
> 2208d8
> >
> 9c185604%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637430975
> 6442408
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> 26%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> zIiLCJBTiI
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=2uB%2FmMkuxi%2Bc2Xb
> MD%2FhKpcw
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> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Furld&d=DwIFAw&c=jOU
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> 862rdSP1
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> A&s=tmsZ3
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> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
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> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
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> > > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
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> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > 862rdSP1
> > > > 3_P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> > > udp1CLokf2QWuzFgE&s=ZLdz6
> > > > OgavzNn2vSzsgyL1IB6MbK7hPKavOYwbLhyTPU&e=
> > > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
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> > > > QPzPKJGaWbo%26r%3DBJxhacqqa4K1PJGm6_-
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> > >
> >
> 862rdSP13_P6LVp7j_9l1xmg%26m%3DlNXu2xwvyxEZ3PzoVmXMBXXS55jsmf
> > > >
> > >
> >
> DicuQFJqkIOH4%26s%3D_5VDNCRQdA7AhsvvZ3TJJtQZ2iBp9c9tFHIleTYT_ZM
> > > >
> > >
> >
> %26e%3D&amp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5f
> > > >
> > >
> >
> a241f9634692c03908d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7
> > > >
> > >
> >
> C0%7C0%7C637417997272974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi
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> MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C100
> > > >
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> >
> 0&amp;sdata=OEgYlw%2F1YP0C%2FnWBRQUxwBH56mGOJxYMWSQ%2Fj1Y
> > > > 9f6Q%3D&amp;reserved=0 .
> > > > > >>> kernel.org/linux-
> > > > > >>>
> > > > iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> > > > > >>> B1310.namprd10.prod.outlook.com
> > > > > >>>
> > > >
> > >
> >
> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > > > > >>>
> > > >
> > >
> >
> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > > > > >>>
> > > >
> > >
> >
> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > > > > >>>
> > > >
> > >
> >
> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > > > > >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > > > > >>> Signed-off-by: Will Deacon <will@kernel.org>
> > > > > >>> ---
> > > > > >>>
> > > > > >>> Hi all,
> > > > > >>>
> > > > > >>> Since Joerg is away at the moment, I'm posting this to try 
> > > > > >>> to make some progress with the thread in the Link: tag.
> > > > > >> + Felix
> > > > > >>
> > > > > >> What system is this?  Can you provide more details?  Does a 
> > > > > >> sbios update fix this?  Disabling ATS for all Ravens will 
> > > > > >> break GPU compute for a lot of people.  I'd prefer to just 
> > > > > >> black list this particular system (e.g., just SSIDs or
> > > > > >> revision) if
> possible.
> > > > >
> > > > > +Ray
> > > > >
> > > > > There are already many systems where the IOMMU is disabled in 
> > > > > the BIOS, or the CRAT table reporting the APU compute 
> > > > > capabilities is broken. Ray has been working on a fallback to 
> > > > > make APUs behave like dGPUs on such systems. That should also 
> > > > > cover this case where ATS is blacklisted. That said, it 
> > > > > affects the programming model, because we don't support the 
> > > > > unified and coherent memory model on dGPUs like we do on APUs 
> > > > > with
> IOMMUv2.
> > > > > So it would be good to
> > make
> > > > > the conditions for this workaround as narrow as possible.
> > > >
> > > > Yes, besides the comments from Alex and Felix, may we get your 
> > > > firmware version (SMC firmware which is from SBIOS) and device id?
> > > >
> > > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > > > >>> timeout, signaled seq=1, emitted seq=3
> > > >
> > > > It looks only gfx ib test passed, and fails to lanuch desktop, am I right?
> > > >
> > > > We would like to see whether it is Raven, Raven kicker (new 
> > > > Raven), or Picasso. In our side, per the internal test result, 
> > > > we didn't see the similiar issue on Raven kicker and Picasso platform.
> > > >
> > > > Thanks,
> > > > Ray
> > > >
> > > > >
> > > > > These are the relevant changes in KFD and Thunk for reference:
> > > > >
> > > > > ### KFD ###
> > > > >
> > > > > commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> > > > > Author: Huang Rui <ray.huang@amd.com>
> > > > > Date:   Tue Aug 18 14:54:23 2020 +0800
> > > > >
> > > > >      drm/amdkfd: implement the dGPU fallback path for apu (v6)
> > > > >
> > > > >      We still have a few iommu issues which need to address, 
> > > > > so force raven
> > > > >      as "dgpu" path for the moment.
> > > > >
> > > > >      This is to add the fallback path to bypass IOMMU if IOMMU
> > > > > v2 is disabled
> > > > >      or ACPI CRAT table not correct.
> > > > >
> > > > >      v2: Use ignore_crat parameter to decide whether it will 
> > > > > go with IOMMUv2.
> > > > >      v3: Align with existed thunk, don't change the way of 
> > > > > raven, only renoir
> > > > >          will use "dgpu" path by default.
> > > > >      v4: don't update global ignore_crat in the driver, and 
> > > > > revise fallback
> > > > >          function if CRAT is broken.
> > > > >      v5: refine acpi crat good but no iommu support case, and 
> > > > > rename the
> > > > >          title.
> > > > >      v6: fix the issue of dGPU initialized firstly, just 
> > > > > modify the report
> > > > >          value in the node_show().
> > > > >
> > > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > > >      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
> > > > >      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> > > > >
> > > > > ### Thunk ###
> > > > >
> > > > > commit e32482fa4b9ca398c8bdc303920abfd672592764
> > > > > Author: Huang Rui <ray.huang@amd.com>
> > > > > Date:   Tue Aug 18 18:54:05 2020 +0800
> > > > >
> > > > >      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> > > > >
> > > > >      Whether use dgpu path will check the props which exposed 
> > > > > from
> > > kernel.
> > > > >      We won't need hard code in the ASIC table.
> > > > >
> > > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > > >      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> > > > >
> > > > > commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> > > > > Author: Huang Rui <ray.huang@amd.com>
> > > > > Date:   Thu Jul 30 10:22:23 2020 +0800
> > > > >
> > > > >      libhsakmt: implement the method that using flag which 
> > > > > exposed by kfd to configure is_dgpu
> > > > >
> > > > >      KFD already implemented the fallback path for APU. Thunk 
> > > > > will use flag
> > > > >      which exposed by kfd to configure is_dgpu instead of 
> > > > > hardcode
> > > before.
> > > > >
> > > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > > >      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> > > > >
> > > > > Regards,
> > > > >    Felix
> > > > >
> > > > >
> > > > > > Cheers, Alex. I'll have to defer to Edgar for the details, 
> > > > > > as my understanding from the original thread over at:
> > > > > >
> > > > > >
> > > >
> > >
> >
> https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.p
> rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Furld&d=DwIFAw&c=jOU
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP1
> 3_P6LVp7j_9l1xmg&m=YkX6enlEevcTFbwL9p9WtRZLfFv4yrkYWGWII8q_ZSo&s=n3lC5
> O0SPjN4j09x39L4oAOOQBED0Rc2xBoAmYeK7_o&e=
> > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__nam11.safelinks.p&amp
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7Cb29c13165c224c3794
> 2208d8
> >
> 9c185604%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637430975
> 6442408
> >
> 26%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> zIiLCJBTiI
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=2uB%2FmMkuxi%2Bc2Xb
> MD%2FhKpcw
> > QUxH49QfbCShTd227RDw%3D&amp;reserved=0
> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Furld&d=DwIFAw&c=jOU
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP1
> >
> 3_P6LVp7j_9l1xmg&m=BIpm40CYGVSJNrmoqPI4DeIayU0tYU2D5NpRwfbkZv
> A&s=tmsZ3
> > ihrSXZ3g6wdJ2maxU9mJ1TGcRxd91z9IQTP00A&e=
> > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> >
> 3A__nam11.safelinks.p&amp;data=04%7C01%7CAlexander.Deucher%40amd
> >
> .com%7C9194a443d95c4ffcb7f708d891ed0889%7C3dd8961fe4884e608e11a82
> >
> d994e183d%7C0%7C1%7C637419794843309283%7CUnknown%7CTWFpbGZsb
> >
> 3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0
> >
> %3D%7C1000&amp;sdata=4JGSwn7au4u%2FBB69mmq0%2BrWfVG12sEyd5H
> > oBUeiut9o%3D&amp;reserved=0
> > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > 252Furld&d=DwIFAw&c=jOU
> > >
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > 862rdSP1
> > > 3_P6LVp7j_9l1xmg&m=ZhN0Jau6oCc4cnz64IhGK2-
> > XDiD5D_6vW6ZYbifWYF0&s=ndvE-
> > > ezxTBweMMUjyMWdiCyPB6GDIS_eWs0kmZwqtpY&e=
> > > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > 3A__nam11.safelinks.p&amp
> > > >
> > >
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C1d797071822d47ce6
> > > c9808d8
> > > >
> > >
> >
> 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
> > > 3633797
> > > >
> > >
> >
> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> > > zIiLCJBTiI
> > > >
> > >
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> > > sj6eMk3
> > > > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > > 252Fur&d=DwIFAw&c=jOURT
> > > >
> > kCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > 862rdSP13_
> > > > P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> > > udp1CLokf2QWuzFgE&s=IPZRolk
> > > > y3TYlbWPsOkY37MbDdzwhc1b_LaE6JkaOkOo&e=
> > > > > > ldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > > 3A__lore.kernel.org&a
> > > > > >
> > > >
> > >
> >
> mp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5fa241f963469
> > > > 2c039
> > > > > >
> > > >
> > >
> >
> 08d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63741
> > > > 79972
> > > > > >
> > > >
> > >
> >
> 72974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> > > > V2luMzI
> > > > > >
> > > >
> > >
> >
> iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=iKTPucGQqcRXET
> > > > QZiQz
> > > > > > j90WdJeCYDytdZHJ1ZiUyR%2FM%3D&amp;reserved=0
> > > > > > _linux-
> 2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-
> > > > 40MWHPR10MB131
> > > > > >
> > > >
> > >
> >
> 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3Y
> > > > JGoxo
> > > > > > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > > 862rdSP13_P6LVp7j_9l1xmg&m=lNXu
> > > > > >
> > > >
> > >
> >
> 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU
> > > > 60y21
> > > > > > ijWZmZ8xmOK1cO_O0&e=
> > > > > >
> > > > > > is that this is a board developed by his company.
> > > > > >
> > > > > > Edgar -- please can you answer Alex's questions?
> > > > > >
> > > > > > Will

[-- Attachment #2: 0001-PCI-quirks-Add-an-ATS-quirk-for-a-Picasso-APU_customized_nr3.patch --]
[-- Type: application/octet-stream, Size: 1660 bytes --]

From 4e9e80150dc4d736b833137d558e126f44115905 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 25 Nov 2020 10:57:15 -0500
Subject: [PATCH] PCI: quirks: Add an ATS quirk for a Picasso APU

This is very specific to a particular platform, because
ATS is required for GPU compute and this is not known
to be an issue on any other Picasso platforms.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/pci/quirks.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index f70692ac79c5..d6e3845d5d04 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5164,6 +5164,17 @@ static void quirk_amd_harvest_no_ats(struct pci_dev *pdev)
 	    (pdev->device == 0x7340 && pdev->revision != 0xc5))
 		return;
 
+	if (pdev->device == 0x15d8) {
+		if (pdev->revision == 0xcf &&
+		    pdev->subsystem_vendor == 0xea50 &&
+		    (pdev->subsystem_device == 0xce19 ||
+		     pdev->subsystem_device == 0xcc10 ||
+		     pdev->subsystem_device == 0xcc08))
+			goto no_ats;
+		else
+			return;
+	}
+
+no_ats:
 	pci_info(pdev, "disabling ATS\n");
 	pdev->ats_cap = 0;
 }
@@ -5176,6 +5187,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, quirk_amd_harvest_no_ats);
 /* AMD Navi14 dGPU */
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats);
+/* AMD Raven platform iGPU */
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, quirk_amd_harvest_no_ats);
 #endif /* CONFIG_PCI_ATS */
 
 /* Freescale PCIe doesn't support MSI in RC mode */
-- 
2.25.4

RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Deucher, Alexander]

[AMD Public Use]

> -----Original Message-----
> From: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>
> Sent: Thursday, December 10, 2020 5:48 AM
> To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; 
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> Alright. Done that.
> This should be it finally I believe.
> Which will be the initial kernel-version that incorporates that?

Looks good to me.  Bjorn, can you pick this up for PCI?

Alex

> 
> -----Original Message-----
> From: Deucher, Alexander <Alexander.Deucher@amd.com>
> Sent: Mittwoch, 9. Dezember 2020 15:24
> To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; 
> Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> <Felix.Kuehling@amd.com>
> Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; 
> linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> Changfeng <Changfeng.Zhu@amd.com>
> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> broken
> 
> [AMD Public Use]
> 
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>
> > Sent: Wednesday, December 9, 2020 2:59 AM
> > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > Alex,
> >
> > I had to revise the patch. Please see attachment. It is actually two 
> > more SSIDs affected to that.
> 
> Other than some minor whitespace issues, the patch looks fine to me.
> Please align the subsystem_device lines and put the closing 
> parenthesis on the same line as the last check.
> 
> Thanks!
> 
> Alex
> 
> >
> > Best regards,
> > Edgar
> >
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > Sent: Dienstag, 8. Dezember 2020 09:23
> > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang, Ray'
> > <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
> > Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org'
> > <linux- kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org' <linux- 
> > pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org'
> > <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas'
> > <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu, 
> > Changfeng' <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > Applied the patch as in attachment. Verified that ATS for GPU-Device 
> > had been disabled. See attachment "dmesg_ATS.log".
> >
> > Was running that build over night successfully.
> >
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > Sent: Montag, 7. Dezember 2020 05:53
> > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > Hi Alex,
> >
> > I believe in the patch file, this
> > +		    (pdev->subsystem_device == 0x0c19 ||
> > +		     pdev->subsystem_device == 0x0c10))
> >
> > Has to be changed to:
> > +		    (pdev->subsystem_device == 0xce19 ||
> > +		     pdev->subsystem_device == 0xcc10))
> >
> > Because our SSIDs are "ea50:ce19" and "ea50:cc10" respectively and 
> > another one would "ea50:cc08".
> >
> > I will apply that patch and feedback the results soon plus the patch 
> > file that I actually had applied.
> >
> >
> > -----Original Message-----
> > From: Deucher, Alexander <Alexander.Deucher@amd.com>
> > Sent: Montag, 30. November 2020 19:36
> > To: Merger, Edgar [AUTOSOL/MAS/AUGS]
> <Edgar.Merger@emerson.com>;
> > Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> >
> > [AMD Public Use]
> >
> > > -----Original Message-----
> > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > <Edgar.Merger@emerson.com>
> > > Sent: Thursday, November 26, 2020 4:24 AM
> > > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > as broken
> > >
> > > Alex,
> > >
> > > This is pretty much the same patch as what I have received from 
> > > Joerg previously, except that it is tied to the particular Emerson 
> > > platform and its derivatives (listed with Subsystem IDs).
> >
> > Right.  As per my original point, I don't want to disable ATS on all 
> > Picasso chips because doing so would break GPU compute on them, so 
> > I'd like to apply this quirk as narrowly as possible.
> >
> > >
> > > Below patch was what Joerg provided me and I successfully tested.
> > >
> > > This diff to the kernel should do that:
> > >
> > > diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 
> > > f70692ac79c5..3911b0ec57ba 100644
> > > --- a/drivers/pci/quirks.c
> > > +++ b/drivers/pci/quirks.c
> > > @@ -5176,6 +5176,8 @@
> > DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI,
> > > 0x6900, quirk_amd_harvest_no_ats); 
> > > DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, 
> > > quirk_amd_harvest_no_ats);
> > >  /* AMD Navi14 dGPU */
> > >  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, 
> > > quirk_amd_harvest_no_ats);
> > > +/* AMD Raven platform iGPU */
> > > +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, 
> > > +quirk_amd_harvest_no_ats);
> > >  #endif /* CONFIG_PCI_ATS */
> > >
> > >  /* Freescale PCIe doesn't support MSI in RC mode */
> > >
> > > So far I have seen this issue on two instances of this chip, but I 
> > > must admit that I did test only two of them to this extent, so I 
> > > guess it is not a bad chip in particular, but the chips we use are 
> > > from the same production lot, so it might be a systematical 
> > > problem of that
> > production lot?
> > >
> > > UEFI-Setup shows:
> > > Processor Family: 17h
> > > Procossor Model: 20h - 2Fh
> > > CPUID: 00820F01
> > > Microcode Patch Level: 8200103
> > >
> > > Looking at the chip-die I found that this is a fully qualified IP 
> > > Silicon (according to Ryzen Embedded R1000 SOC Interlock).
> > > YE1305C9T20FG
> > > BI2015SUY
> > > 9JB6496P00123
> > > 2016 AMD
> > > DIFFUSED IN USA
> > > MADE IN CHINA
> > >
> > > Currently used SBIOS is a branch from "EmbeddedPI-FP5 1.2.0.3RC3".
> > >
> > > In the future our SBIOS might merge with EmbeddedPI-FP5_1.2.0.5RC3.
> > >
> >
> > I think it's more likely an sbios issue, so hopefully the new release fixes it.
> >
> > Alex
> >
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Deucher, Alexander <Alexander.Deucher@amd.com>
> > > Sent: Mittwoch, 25. November 2020 17:08
> > > To: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > <Edgar.Merger@emerson.com>;
> > > Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > > <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > as broken
> > >
> > > [AMD Public Use]
> > >
> > > > -----Original Message-----
> > > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > <Edgar.Merger@emerson.com>
> > > > Sent: Wednesday, November 25, 2020 5:04 AM
> > > > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > > > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > > as broken
> > > >
> > > > I do have also other problems with this unit, when IOMMU is 
> > > > enabled and pci=noats is not set as kernel parameter.
> > > >
> > > > [ 2004.265906] amdgpu 0000:0b:00.0: [drm:amdgpu_ib_ring_tests 
> > > > [amdgpu]]
> > > > *ERROR* IB test failed on gfx (-110).
> > > > [ 2004.266024] [drm:amdgpu_device_delayed_init_work_handler
> > > [amdgpu]]
> > > > *ERROR* ib ring test failed (-110).
> > > >
> > >
> > > Is this seen on all instances of this chip or only specific silicon?
> > > I.e., could this be a bad chip?  Would it be possible to test a 
> > > newer sbios?  I think the attached patch should work if we can't 
> > > get it fixed on the platform side.  It should only enable the 
> > > quirk on your
> > particular platform.
> > >
> > > Alex
> > >
> > >
> > > > -----Original Message-----
> > > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > > Sent: Mittwoch, 25. November 2020 10:16
> > > > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang,
> Ray'
> > > > <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
> > > > Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org'
> > > > <linux- kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org'
> > > > <linux- pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org'
> > > > <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas'
> > > > <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu, 
> > > > Changfeng' <Changfeng.Zhu@amd.com>
> > > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > > as broken
> > > >
> > > > Remark:
> > > >
> > > > Systems with R1305G APU (which show the issue) have the 
> > > > following
> > > > VGA-
> > > > Controller:
> > > > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > > > [AMD/ATI] Picasso (rev cf)
> > > >
> > > > Systems with V1404I APU (which do not show the issue) have the 
> > > > following
> > > > VGA-Controller:
> > > > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > > > [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile 
> > > > Series] (rev 83)
> > > >
> > > > "rev cf" vs. "ref 83" is probably what you where referring to 
> > > > with PCI Revision ID.
> > > >
> > > > -----Original Message-----
> > > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > > Sent: Mittwoch, 25. November 2020 07:05
> > > > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; Huang, Ray 
> > > > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > > as broken
> > > >
> > > > I see that problem only on systems that use a R1305G APU
> > > >
> > > > sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info
> > > >
> > > > shows
> > > >
> > > > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > > > version: 0, firmware version: 0x00000000 MC feature version: 0, 
> > > > firmware
> > > version:
> > > > 0x00000000 ME feature version: 50, firmware version: 0x000000a3 
> > > > PFP feature version: 50, firmware version: 0x000000bb CE feature
> version:
> > > > 50, firmware version: 0x0000004f RLC feature version: 1, 
> > > > firmware
> > version:
> > > > 0x00000049 RLC SRLC feature version: 1, firmware version:
> > > > 0x00000001 RLC SRLG feature version: 1, firmware version:
> > > > 0x00000001 RLC SRLS feature
> > > > version: 1, firmware version: 0x00000001 MEC feature version: 
> > > > 50, firmware
> > > > version: 0x000001b5
> > > > MEC2 feature version: 50, firmware version: 0x000001b5 SOS 
> > > > feature
> > > version:
> > > > 0, firmware version: 0x00000000 ASD feature version: 0, firmware
> > version:
> > > > 0x21000030 TA XGMI feature version: 0, firmware version:
> > > > 0x00000000 TA RAS feature version: 0, firmware version: 
> > > > 0x00000000 SMC feature
> > > > version: 0, firmware version: 0x00002527
> > > > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN 
> > > > feature
> > > > version: 0, firmware version: 0x0110901c DMCU feature version: 
> > > > 0, firmware
> > > > version: 0x00000001 VBIOS version: 113-RAVEN2-117
> > > >
> > > > We are also using V1404I APU on the same boards and I haven´t 
> > > > seen the issue on those boards
> > > >
> > > > These boards give me slightly different info: sudo cat 
> > > > /sys/kernel/debug/dri/0/amdgpu_firmware_info
> > > >
> > > > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > > > version: 0, firmware version: 0x00000000 MC feature version: 0, 
> > > > firmware
> > > version:
> > > > 0x00000000 ME feature version: 47, firmware version: 0x000000a2 
> > > > PFP feature version: 47, firmware version: 0x000000b9 CE feature
> version:
> > > > 47, firmware version: 0x0000004e RLC feature version: 1, 
> > > > firmware
> > version:
> > > > 0x00000213 RLC SRLC feature version: 1, firmware version:
> > > > 0x00000001 RLC SRLG feature version: 1, firmware version:
> > > > 0x00000001 RLC SRLS feature
> > > > version: 1, firmware version: 0x00000001 MEC feature version: 
> > > > 47, firmware
> > > > version: 0x000001ab
> > > > MEC2 feature version: 47, firmware version: 0x000001ab SOS 
> > > > feature
> > > version:
> > > > 0, firmware version: 0x00000000 ASD feature version: 0, firmware
> > version:
> > > > 0x21000013 TA XGMI feature version: 0, firmware version:
> > > > 0x00000000 TA RAS feature version: 0, firmware version: 
> > > > 0x00000000 SMC feature
> > > > version: 0, firmware version: 0x00001e5b
> > > > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN 
> > > > feature
> > > > version: 0, firmware version: 0x0110901c DMCU feature version: 
> > > > 0, firmware
> > > > version: 0x00000000 VBIOS version: 113-RAVEN-116
> > > >
> > > >
> > > >
> > > >
> > > > 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > Raven/Raven2 Root Complex
> > > > 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > > IOMMU
> > > > 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 
> > > > 17h (Models
> > > > 00h-1fh) PCIe Dummy Host Bridge
> > > > 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD]
> > > > Raven/Raven2 PCIe GPP Bridge [6:0]
> > > > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > > > Switch Upstream (PCIE SW.US)
> > > > 00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD]
> > > > Raven/Raven2 PCIe GPP Bridge [6:0]
> > > > 00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > > > Switch Upstream (PCIE SW.US)
> > > > 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 
> > > > 17h (Models
> > > > 00h-1fh) PCIe Dummy Host Bridge
> > > > 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD]
> > > > Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A
> > > > 00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD]
> > > > Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus B
> > > > 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus 
> > > > Controller (rev 61)
> > > > 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC 
> > > > Bridge (rev
> > > > 51)
> > > > 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > Raven/Raven2 Device 24: Function 0
> > > > 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > Raven/Raven2 Device 24: Function 1
> > > > 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > Raven/Raven2 Device 24: Function 2
> > > > 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > Raven/Raven2 Device 24: Function 3
> > > > 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > Raven/Raven2 Device 24: Function 4
> > > > 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > Raven/Raven2 Device 24: Function 5
> > > > 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > Raven/Raven2 Device 24: Function 6
> > > > 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > Raven/Raven2 Device 24: Function 7
> > > > 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> > > > RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 
> > > > 0e)
> > > > 01:00.1 Serial controller: Realtek Semiconductor Co., Ltd. 
> > > > Device 816a (rev 0e)
> > > > 01:00.2 Serial controller: Realtek Semiconductor Co., Ltd. 
> > > > Device 816b (rev 0e)
> > > > 01:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 
> > > > 816c (rev 0e)
> > > > 01:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 
> > > > 816d (rev 0e)
> > > > 02:00.0 Ethernet controller: Intel Corporation I210 Gigabit 
> > > > Network Connection (rev 03)
> > > > 03:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > > 6-Port/8- Lane Packet Switch
> > > > 04:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > > 6-Port/8- Lane Packet Switch
> > > > 04:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > > 6-Port/8- Lane Packet Switch
> > > > 04:03.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > > 6-Port/8- Lane Packet Switch
> > > > 04:04.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > > 6-Port/8- Lane Packet Switch
> > > > 04:05.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > > 6-Port/8- Lane Packet Switch
> > > > 06:00.0 Serial controller: Asix Electronics Corporation Device
> > > > 9100
> > > > 06:00.1 Serial controller: Asix Electronics Corporation Device
> > > > 9100
> > > > 07:00.0 Ethernet controller: Intel Corporation I210 Gigabit 
> > > > Network Connection (rev 03)
> > > > 0a:00.0 Ethernet controller: Intel Corporation I210 Gigabit 
> > > > Network Connection (rev 03)
> > > > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > > > [AMD/ATI] Picasso (rev cf)
> > > > 0b:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] 
> > > > Raven/Raven2/Fenghuang HDMI/DP Audio Controller
> > > > 0b:00.2 Encryption controller: Advanced Micro Devices, Inc. 
> > > > [AMD] Family 17h (Models 10h-1fh) Platform Security Processor
> > > > 0b:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] 
> > > > Raven2 USB
> > > > 3.1
> > > > 0b:00.5 Multimedia controller: Advanced Micro Devices, Inc. 
> > > > [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor
> > > > 0b:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc.
> > > > [AMD] Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver
> > > > 0c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH 
> > > > SATA Controller [AHCI mode] (rev 61)
> > > >
> > > > PCI Revision ID is 06 I believe. Got that from this lspci -xx
> > > >
> > > > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > > > Switch Upstream (PCIE SW.US)
> > > > 00: 22 10 5d 14 07 04 10 00 00 00 04 06 10 00 81 00
> > > > 10: 00 00 00 00 00 00 00 00 00 02 02 00 f1 01 00 00
> > > > 20: e0 fc e0 fc f1 ff 01 00 00 00 00 00 00 00 00 00
> > > > 30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 12 00
> > > > 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > > 50: 01 58 03 c8 00 00 00 00 10 a0 42 01 22 80 00 00
> > > > 60: 1f 29 00 00 13 38 73 03 42 00 11 30 00 00 04 00
> > > > 70: 00 00 40 01 18 00 01 00 00 00 00 00 bf 01 70 00
> > > > 80: 06 00 00 00 0e 00 00 00 03 00 01 00 00 00 00 00
> > > > 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > > a0: 05 c0 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00
> > > > b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > > c0: 0d c8 00 00 22 10 34 12 08 00 03 a8 00 00 00 00
> > > > d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > > e0: 00 00 00 00 4c 8a 05 00 00 00 00 00 00 00 00 00
> > > > f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > >
> > > > -----Original Message-----
> > > > From: Deucher, Alexander <Alexander.Deucher@amd.com>
> > > > Sent: Dienstag, 24. November 2020 16:06
> > > > To: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > <Edgar.Merger@emerson.com>;
> > > > Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > > > <Felix.Kuehling@amd.com>
> > > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > > as broken
> > > >
> > > > [AMD Public Use]
> > > >
> > > > > -----Original Message-----
> > > > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > > <Edgar.Merger@emerson.com>
> > > > > Sent: Tuesday, November 24, 2020 2:29 AM
> > > > > To: Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > > > > <Felix.Kuehling@amd.com>
> > > > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > > > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org;
> > > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > > > <jroedel@suse.de>; Zhu,
> > > > Changfeng
> > > > > <Changfeng.Zhu@amd.com>
> > > > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU 
> > > > > ATS as broken
> > > > >
> > > > > Module Version : PiccasoCpu 10
> > > > > AGESA Version   : PiccasoPI 100A
> > > > >
> > > > > I did not try to enter the system in any other way (like via
> > > > > ssh) than via Desktop.
> > > >
> > > > You can get this information from the amdgpu driver.  E.g., sudo 
> > > > cat /sys/kernel/debug/dri/0/amdgpu_firmware_info .  Also what is 
> > > > the PCI revision id of your chip (from lspci)?  Also are you 
> > > > just seeing this on specific versions of the sbios?
> > > >
> > > > Thanks,
> > > >
> > > > Alex
> > > >
> > > >
> > > > >
> > > > > -----Original Message-----
> > > > > From: Huang Rui <ray.huang@amd.com>
> > > > > Sent: Dienstag, 24. November 2020 07:43
> > > > > To: Kuehling, Felix <Felix.Kuehling@amd.com>
> > > > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > > > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org;
> > > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > > Bjorn Helgaas <bhelgaas@google.com>; Merger, Edgar
> > [AUTOSOL/MAS/AUGS]
> > > > > <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>;
> > > > Changfeng
> > > > > Zhu <changfeng.zhu@amd.com>
> > > > > Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > > > as
> > > > broken
> > > > >
> > > > > On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> > > > > > On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > > > > > > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, 
> > > > > > > Alexander
> > > wrote:
> > > > > > >> [AMD Public Use]
> > > > > > >>
> > > > > > >>> -----Original Message-----
> > > > > > >>> From: Will Deacon <will@kernel.org>
> > > > > > >>> Sent: Monday, November 23, 2020 8:44 AM
> > > > > > >>> To: linux-kernel@vger.kernel.org
> > > > > > >>> Cc: linux-pci@vger.kernel.org; 
> > > > > > >>> iommu@lists.linux-foundation.org; Will Deacon 
> > > > > > >>> <will@kernel.org>; Bjorn Helgaas <bhelgaas@google.com>; 
> > > > > > >>> Deucher, Alexander <Alexander.Deucher@amd.com>; Edgar
> > > Merger
> > > > > > >>> <Edgar.Merger@emerson.com>; Joerg Roedel
> > <jroedel@suse.de>
> > > > > > >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > > > > > >>>
> > > > > > >>> Edgar Merger reports that the AMD Raven GPU does not 
> > > > > > >>> work reliably on his system when the IOMMU is enabled:
> > > > > > >>>
> > > > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > > > > >>> timeout, signaled seq=1, emitted seq=3
> > > > > > >>>    | [...]
> > > > > > >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> > > > > > >>>    | AMD-Vi: Completion-Wait loop timed out
> > > > > > >>>    | iommu ivhd0: AMD-Vi: Event logged 
> > > > > > >>> [IOTLB_INV_TIMEOUT
> > > > > > >>> device=0b:00.0 address=0x38edc0970]
> > > > > > >>>
> > > > > > >>> This is indicative of a hardware/platform configuration 
> > > > > > >>> issue so, since disabling ATS has been shown to resolve 
> > > > > > >>> the problem, add a quirk to match this particular device 
> > > > > > >>> while Edgar follows-up with AMD
> > > > > for more information.
> > > > > > >>>
> > > > > > >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> > > > > > >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> > > > > > >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > > > > > >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> > > > > > >>> Link:
> > > > > > >>>
> > > > >
> > > >
> > >
> >
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Furld
> > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__nam11.safelinks.p&amp
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C467e5e31a26440bd4
> c0d08d8
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> arLwTai
> > vnq3afaZPu%2BzlWp8%3D&amp;reserved=0
> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Furld&d=DwIFAw&c=jOU
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP1
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> &s=n3lC5
> > O0SPjN4j09x39L4oAOOQBED0Rc2xBoAmYeK7_o&e=
> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > 3A__nam11.safelinks.p&amp
> > >
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7Cb29c13165c224c3794
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> > MD%2FhKpcw
> > > QUxH49QfbCShTd227RDw%3D&amp;reserved=0
> > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > 252Furld&d=DwIFAw&c=jOU
> > >
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > 862rdSP1
> > >
> >
> 3_P6LVp7j_9l1xmg&m=BIpm40CYGVSJNrmoqPI4DeIayU0tYU2D5NpRwfbkZv
> > A&s=tmsZ3
> > > ihrSXZ3g6wdJ2maxU9mJ1TGcRxd91z9IQTP00A&e=
> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > >
> >
> 3A__nam11.safelinks.p&amp;data=04%7C01%7CAlexander.Deucher%40amd
> > >
> >
> .com%7C9194a443d95c4ffcb7f708d891ed0889%7C3dd8961fe4884e608e11a82
> > >
> >
> d994e183d%7C0%7C1%7C637419794843309283%7CUnknown%7CTWFpbGZsb
> > >
> >
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> > >
> >
> %3D%7C1000&amp;sdata=4JGSwn7au4u%2FBB69mmq0%2BrWfVG12sEyd5H
> > > oBUeiut9o%3D&amp;reserved=0
> > > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > > 252Furld&d=DwIFAw&c=jOU
> > > >
> > >
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > 862rdSP1
> > > > 3_P6LVp7j_9l1xmg&m=ZhN0Jau6oCc4cnz64IhGK2-
> > > XDiD5D_6vW6ZYbifWYF0&s=ndvE-
> > > > ezxTBweMMUjyMWdiCyPB6GDIS_eWs0kmZwqtpY&e=
> > > > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > > 3A__nam11.safelinks.p&amp
> > > > >
> > > >
> > >
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C1d797071822d47ce6
> > > > c9808d8
> > > > >
> > > >
> > >
> >
> 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
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> > > >
> > >
> >
> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
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> > > > >
> > > >
> > >
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> > > > sj6eMk3
> > > > > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > > > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > > > 252Furld&d=DwIFAw&c=jOU
> > > > >
> > > >
> > >
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > > 862rdSP1
> > > > > 3_P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> > > > udp1CLokf2QWuzFgE&s=ZLdz6
> > > > > OgavzNn2vSzsgyL1IB6MbK7hPKavOYwbLhyTPU&e=
> > > > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > > >
> > > >
> > >
> >
> 3A__lore%26d%3DDwIDAw%26c%3DjOURTkCZzT8tVB5xPEYIm3YJGoxoTaQs
> > > > > QPzPKJGaWbo%26r%3DBJxhacqqa4K1PJGm6_-
> > > > >
> > > >
> > >
> >
> 862rdSP13_P6LVp7j_9l1xmg%26m%3DlNXu2xwvyxEZ3PzoVmXMBXXS55jsmf
> > > > >
> > > >
> > >
> >
> DicuQFJqkIOH4%26s%3D_5VDNCRQdA7AhsvvZ3TJJtQZ2iBp9c9tFHIleTYT_ZM
> > > > >
> > > >
> > >
> >
> %26e%3D&amp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5f
> > > > >
> > > >
> > >
> >
> a241f9634692c03908d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7
> > > > >
> > > >
> > >
> >
> C0%7C0%7C637417997272974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi
> > > > >
> > > >
> > >
> >
> MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C100
> > > > >
> > > >
> > >
> >
> 0&amp;sdata=OEgYlw%2F1YP0C%2FnWBRQUxwBH56mGOJxYMWSQ%2Fj1Y
> > > > > 9f6Q%3D&amp;reserved=0 .
> > > > > > >>> kernel.org/linux-
> > > > > > >>>
> > > > >
> iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> > > > > > >>> B1310.namprd10.prod.outlook.com
> > > > > > >>>
> > > > >
> > > >
> > >
> >
> her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > > > > > >>>
> > > > >
> > > >
> > >
> >
> 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > > > > > >>>
> > > > >
> > > >
> > >
> >
> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > > > > > >>>
> > > > >
> > > >
> > >
> >
> LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > > > > > >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > > > > > >>> Signed-off-by: Will Deacon <will@kernel.org>
> > > > > > >>> ---
> > > > > > >>>
> > > > > > >>> Hi all,
> > > > > > >>>
> > > > > > >>> Since Joerg is away at the moment, I'm posting this to 
> > > > > > >>> try to make some progress with the thread in the Link: tag.
> > > > > > >> + Felix
> > > > > > >>
> > > > > > >> What system is this?  Can you provide more details?  Does 
> > > > > > >> a sbios update fix this?  Disabling ATS for all Ravens 
> > > > > > >> will break GPU compute for a lot of people.  I'd prefer 
> > > > > > >> to just black list this particular system (e.g., just 
> > > > > > >> SSIDs or
> > > > > > >> revision) if
> > possible.
> > > > > >
> > > > > > +Ray
> > > > > >
> > > > > > There are already many systems where the IOMMU is disabled 
> > > > > > in the BIOS, or the CRAT table reporting the APU compute 
> > > > > > capabilities is broken. Ray has been working on a fallback 
> > > > > > to make APUs behave like dGPUs on such systems. That should 
> > > > > > also cover this case where ATS is blacklisted. That said, it 
> > > > > > affects the programming model, because we don't support the 
> > > > > > unified and coherent memory model on dGPUs like we do on 
> > > > > > APUs with
> > IOMMUv2.
> > > > > > So it would be good to
> > > make
> > > > > > the conditions for this workaround as narrow as possible.
> > > > >
> > > > > Yes, besides the comments from Alex and Felix, may we get your 
> > > > > firmware version (SMC firmware which is from SBIOS) and device id?
> > > > >
> > > > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > > > > >>> timeout, signaled seq=1, emitted seq=3
> > > > >
> > > > > It looks only gfx ib test passed, and fails to lanuch desktop, am I right?
> > > > >
> > > > > We would like to see whether it is Raven, Raven kicker (new 
> > > > > Raven), or Picasso. In our side, per the internal test result, 
> > > > > we didn't see the similiar issue on Raven kicker and Picasso platform.
> > > > >
> > > > > Thanks,
> > > > > Ray
> > > > >
> > > > > >
> > > > > > These are the relevant changes in KFD and Thunk for reference:
> > > > > >
> > > > > > ### KFD ###
> > > > > >
> > > > > > commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> > > > > > Author: Huang Rui <ray.huang@amd.com>
> > > > > > Date:   Tue Aug 18 14:54:23 2020 +0800
> > > > > >
> > > > > >      drm/amdkfd: implement the dGPU fallback path for apu 
> > > > > > (v6)
> > > > > >
> > > > > >      We still have a few iommu issues which need to address, 
> > > > > > so force raven
> > > > > >      as "dgpu" path for the moment.
> > > > > >
> > > > > >      This is to add the fallback path to bypass IOMMU if 
> > > > > > IOMMU
> > > > > > v2 is disabled
> > > > > >      or ACPI CRAT table not correct.
> > > > > >
> > > > > >      v2: Use ignore_crat parameter to decide whether it will 
> > > > > > go with IOMMUv2.
> > > > > >      v3: Align with existed thunk, don't change the way of 
> > > > > > raven, only renoir
> > > > > >          will use "dgpu" path by default.
> > > > > >      v4: don't update global ignore_crat in the driver, and 
> > > > > > revise fallback
> > > > > >          function if CRAT is broken.
> > > > > >      v5: refine acpi crat good but no iommu support case, 
> > > > > > and rename the
> > > > > >          title.
> > > > > >      v6: fix the issue of dGPU initialized firstly, just 
> > > > > > modify the report
> > > > > >          value in the node_show().
> > > > > >
> > > > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > > > >      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
> > > > > >      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> > > > > >
> > > > > > ### Thunk ###
> > > > > >
> > > > > > commit e32482fa4b9ca398c8bdc303920abfd672592764
> > > > > > Author: Huang Rui <ray.huang@amd.com>
> > > > > > Date:   Tue Aug 18 18:54:05 2020 +0800
> > > > > >
> > > > > >      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> > > > > >
> > > > > >      Whether use dgpu path will check the props which 
> > > > > > exposed from
> > > > kernel.
> > > > > >      We won't need hard code in the ASIC table.
> > > > > >
> > > > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > > > >      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> > > > > >
> > > > > > commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> > > > > > Author: Huang Rui <ray.huang@amd.com>
> > > > > > Date:   Thu Jul 30 10:22:23 2020 +0800
> > > > > >
> > > > > >      libhsakmt: implement the method that using flag which 
> > > > > > exposed by kfd to configure is_dgpu
> > > > > >
> > > > > >      KFD already implemented the fallback path for APU. 
> > > > > > Thunk will use flag
> > > > > >      which exposed by kfd to configure is_dgpu instead of 
> > > > > > hardcode
> > > > before.
> > > > > >
> > > > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > > > >      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> > > > > >
> > > > > > Regards,
> > > > > >    Felix
> > > > > >
> > > > > >
> > > > > > > Cheers, Alex. I'll have to defer to Edgar for the details, 
> > > > > > > as my understanding from the original thread over at:
> > > > > > >
> > > > > > >
> > > > >
> > > >
> > >
> >
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Furld
> > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> 3A__nam11.safelinks.p&amp
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C467e5e31a26440bd4
> c0d08d8
> >
> 9cf98a9c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C6374319428
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> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=q%2F2XCPX9jAIyCjZbej2q
> arLwTai
> > vnq3afaZPu%2BzlWp8%3D&amp;reserved=0
> > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> 252Furld&d=DwIFAw&c=jOU
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> 862rdSP1
> >
> 3_P6LVp7j_9l1xmg&m=YkX6enlEevcTFbwL9p9WtRZLfFv4yrkYWGWII8q_ZSo
> &s=n3lC5
> > O0SPjN4j09x39L4oAOOQBED0Rc2xBoAmYeK7_o&e=
> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > 3A__nam11.safelinks.p&amp
> > >
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7Cb29c13165c224c3794
> > 2208d8
> > >
> >
> 9c185604%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637430975
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> >
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> > >
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=2uB%2FmMkuxi%2Bc2Xb
> > MD%2FhKpcw
> > > QUxH49QfbCShTd227RDw%3D&amp;reserved=0
> > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > 252Furld&d=DwIFAw&c=jOU
> > >
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> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > 862rdSP1
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> >
> 3_P6LVp7j_9l1xmg&m=BIpm40CYGVSJNrmoqPI4DeIayU0tYU2D5NpRwfbkZv
> > A&s=tmsZ3
> > > ihrSXZ3g6wdJ2maxU9mJ1TGcRxd91z9IQTP00A&e=
> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > >
> >
> 3A__nam11.safelinks.p&amp;data=04%7C01%7CAlexander.Deucher%40amd
> > >
> >
> .com%7C9194a443d95c4ffcb7f708d891ed0889%7C3dd8961fe4884e608e11a82
> > >
> >
> d994e183d%7C0%7C1%7C637419794843309283%7CUnknown%7CTWFpbGZsb
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> >
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> > > oBUeiut9o%3D&amp;reserved=0
> > > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > > 252Furld&d=DwIFAw&c=jOU
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> > >
> >
> RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > 862rdSP1
> > > > 3_P6LVp7j_9l1xmg&m=ZhN0Jau6oCc4cnz64IhGK2-
> > > XDiD5D_6vW6ZYbifWYF0&s=ndvE-
> > > > ezxTBweMMUjyMWdiCyPB6GDIS_eWs0kmZwqtpY&e=
> > > > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > > 3A__nam11.safelinks.p&amp
> > > > >
> > > >
> > >
> >
> ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C1d797071822d47ce6
> > > > c9808d8
> > > > >
> > > >
> > >
> >
> 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
> > > > 3633797
> > > > >
> > > >
> > >
> >
> 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> > > > zIiLCJBTiI
> > > > >
> > > >
> > >
> >
> 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> > > > sj6eMk3
> > > > > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > > > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > > > 252Fur&d=DwIFAw&c=jOURT
> > > > >
> > >
> kCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > > 862rdSP13_
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> > > > > y3TYlbWPsOkY37MbDdzwhc1b_LaE6JkaOkOo&e=
> > > > > > > ldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > > > 3A__lore.kernel.org&a
> > > > > > >
> > > > >
> > > >
> > >
> >
> mp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5fa241f963469
> > > > > 2c039
> > > > > > >
> > > > >
> > > >
> > >
> >
> 08d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63741
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> > > > >
> > > >
> > >
> >
> 72974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> > > > > V2luMzI
> > > > > > >
> > > > >
> > > >
> > >
> >
> iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=iKTPucGQqcRXET
> > > > > QZiQz
> > > > > > > j90WdJeCYDytdZHJ1ZiUyR%2FM%3D&amp;reserved=0
> > > > > > > _linux-
> > 2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-
> > > > > 40MWHPR10MB131
> > > > > > >
> > > > >
> > > >
> > >
> >
> 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3Y
> > > > > JGoxo
> > > > > > > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > > > 862rdSP13_P6LVp7j_9l1xmg&m=lNXu
> > > > > > >
> > > > >
> > > >
> > >
> >
> 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU
> > > > > 60y21
> > > > > > > ijWZmZ8xmOK1cO_O0&e=
> > > > > > >
> > > > > > > is that this is a board developed by his company.
> > > > > > >
> > > > > > > Edgar -- please can you answer Alex's questions?
> > > > > > >
> > > > > > > Will

Re: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Bjorn Helgaas]

On Thu, Dec 10, 2020 at 03:36:36PM +0000, Deucher, Alexander wrote:
> [AMD Public Use]
> 
> > -----Original Message-----
> > From: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>
> > Sent: Thursday, December 10, 2020 5:48 AM
> > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; 
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> > 
> > Alright. Done that.
> > This should be it finally I believe.
> > Which will be the initial kernel-version that incorporates that?
> 
> Looks good to me.  Bjorn, can you pick this up for PCI?

Didn't apply cleanly, but I applied it by hand to pci/misc for v5.11.
If all goes well it should appear in v5.11-rc1.

https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git/commit/?h=pci/misc&id=23bb0d9a9fe70a8ff23f53af822f2c6e6f261818

> > -----Original Message-----
> > From: Deucher, Alexander <Alexander.Deucher@amd.com>
> > Sent: Mittwoch, 9. Dezember 2020 15:24
> > To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; 
> > Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > <Felix.Kuehling@amd.com>
> > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org; 
> > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > Changfeng <Changfeng.Zhu@amd.com>
> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > broken
> > 
> > [AMD Public Use]
> > 
> > > -----Original Message-----
> > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > <Edgar.Merger@emerson.com>
> > > Sent: Wednesday, December 9, 2020 2:59 AM
> > > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > > Changfeng <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > > broken
> > >
> > > Alex,
> > >
> > > I had to revise the patch. Please see attachment. It is actually two 
> > > more SSIDs affected to that.
> > 
> > Other than some minor whitespace issues, the patch looks fine to me.
> > Please align the subsystem_device lines and put the closing 
> > parenthesis on the same line as the last check.
> > 
> > Thanks!
> > 
> > Alex
> > 
> > >
> > > Best regards,
> > > Edgar
> > >
> > > -----Original Message-----
> > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > Sent: Dienstag, 8. Dezember 2020 09:23
> > > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang, Ray'
> > > <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
> > > Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org'
> > > <linux- kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org' <linux- 
> > > pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org'
> > > <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas'
> > > <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu, 
> > > Changfeng' <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > > broken
> > >
> > > Applied the patch as in attachment. Verified that ATS for GPU-Device 
> > > had been disabled. See attachment "dmesg_ATS.log".
> > >
> > > Was running that build over night successfully.
> > >
> > > -----Original Message-----
> > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > Sent: Montag, 7. Dezember 2020 05:53
> > > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > > Changfeng <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > > broken
> > >
> > > Hi Alex,
> > >
> > > I believe in the patch file, this
> > > +		    (pdev->subsystem_device == 0x0c19 ||
> > > +		     pdev->subsystem_device == 0x0c10))
> > >
> > > Has to be changed to:
> > > +		    (pdev->subsystem_device == 0xce19 ||
> > > +		     pdev->subsystem_device == 0xcc10))
> > >
> > > Because our SSIDs are "ea50:ce19" and "ea50:cc10" respectively and 
> > > another one would "ea50:cc08".
> > >
> > > I will apply that patch and feedback the results soon plus the patch 
> > > file that I actually had applied.
> > >
> > >
> > > -----Original Message-----
> > > From: Deucher, Alexander <Alexander.Deucher@amd.com>
> > > Sent: Montag, 30. November 2020 19:36
> > > To: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > <Edgar.Merger@emerson.com>;
> > > Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > > <Felix.Kuehling@amd.com>
> > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn 
> > > Helgaas <bhelgaas@google.com>; Joerg Roedel <jroedel@suse.de>; Zhu, 
> > > Changfeng <Changfeng.Zhu@amd.com>
> > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as 
> > > broken
> > >
> > > [AMD Public Use]
> > >
> > > > -----Original Message-----
> > > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > <Edgar.Merger@emerson.com>
> > > > Sent: Thursday, November 26, 2020 4:24 AM
> > > > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > > > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > > as broken
> > > >
> > > > Alex,
> > > >
> > > > This is pretty much the same patch as what I have received from 
> > > > Joerg previously, except that it is tied to the particular Emerson 
> > > > platform and its derivatives (listed with Subsystem IDs).
> > >
> > > Right.  As per my original point, I don't want to disable ATS on all 
> > > Picasso chips because doing so would break GPU compute on them, so 
> > > I'd like to apply this quirk as narrowly as possible.
> > >
> > > >
> > > > Below patch was what Joerg provided me and I successfully tested.
> > > >
> > > > This diff to the kernel should do that:
> > > >
> > > > diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 
> > > > f70692ac79c5..3911b0ec57ba 100644
> > > > --- a/drivers/pci/quirks.c
> > > > +++ b/drivers/pci/quirks.c
> > > > @@ -5176,6 +5176,8 @@
> > > DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI,
> > > > 0x6900, quirk_amd_harvest_no_ats); 
> > > > DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, 
> > > > quirk_amd_harvest_no_ats);
> > > >  /* AMD Navi14 dGPU */
> > > >  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, 
> > > > quirk_amd_harvest_no_ats);
> > > > +/* AMD Raven platform iGPU */
> > > > +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, 
> > > > +quirk_amd_harvest_no_ats);
> > > >  #endif /* CONFIG_PCI_ATS */
> > > >
> > > >  /* Freescale PCIe doesn't support MSI in RC mode */
> > > >
> > > > So far I have seen this issue on two instances of this chip, but I 
> > > > must admit that I did test only two of them to this extent, so I 
> > > > guess it is not a bad chip in particular, but the chips we use are 
> > > > from the same production lot, so it might be a systematical 
> > > > problem of that
> > > production lot?
> > > >
> > > > UEFI-Setup shows:
> > > > Processor Family: 17h
> > > > Procossor Model: 20h - 2Fh
> > > > CPUID: 00820F01
> > > > Microcode Patch Level: 8200103
> > > >
> > > > Looking at the chip-die I found that this is a fully qualified IP 
> > > > Silicon (according to Ryzen Embedded R1000 SOC Interlock).
> > > > YE1305C9T20FG
> > > > BI2015SUY
> > > > 9JB6496P00123
> > > > 2016 AMD
> > > > DIFFUSED IN USA
> > > > MADE IN CHINA
> > > >
> > > > Currently used SBIOS is a branch from "EmbeddedPI-FP5 1.2.0.3RC3".
> > > >
> > > > In the future our SBIOS might merge with EmbeddedPI-FP5_1.2.0.5RC3.
> > > >
> > >
> > > I think it's more likely an sbios issue, so hopefully the new release fixes it.
> > >
> > > Alex
> > >
> > > >
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: Deucher, Alexander <Alexander.Deucher@amd.com>
> > > > Sent: Mittwoch, 25. November 2020 17:08
> > > > To: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > <Edgar.Merger@emerson.com>;
> > > > Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > > > <Felix.Kuehling@amd.com>
> > > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > > as broken
> > > >
> > > > [AMD Public Use]
> > > >
> > > > > -----Original Message-----
> > > > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > > <Edgar.Merger@emerson.com>
> > > > > Sent: Wednesday, November 25, 2020 5:04 AM
> > > > > To: Deucher, Alexander <Alexander.Deucher@amd.com>; Huang, Ray 
> > > > > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > > > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > > > as broken
> > > > >
> > > > > I do have also other problems with this unit, when IOMMU is 
> > > > > enabled and pci=noats is not set as kernel parameter.
> > > > >
> > > > > [ 2004.265906] amdgpu 0000:0b:00.0: [drm:amdgpu_ib_ring_tests 
> > > > > [amdgpu]]
> > > > > *ERROR* IB test failed on gfx (-110).
> > > > > [ 2004.266024] [drm:amdgpu_device_delayed_init_work_handler
> > > > [amdgpu]]
> > > > > *ERROR* ib ring test failed (-110).
> > > > >
> > > >
> > > > Is this seen on all instances of this chip or only specific silicon?
> > > > I.e., could this be a bad chip?  Would it be possible to test a 
> > > > newer sbios?  I think the attached patch should work if we can't 
> > > > get it fixed on the platform side.  It should only enable the 
> > > > quirk on your
> > > particular platform.
> > > >
> > > > Alex
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > > > Sent: Mittwoch, 25. November 2020 10:16
> > > > > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; 'Huang,
> > Ray'
> > > > > <Ray.Huang@amd.com>; 'Kuehling, Felix' <Felix.Kuehling@amd.com>
> > > > > Cc: 'Will Deacon' <will@kernel.org>; 'linux-kernel@vger.kernel.org'
> > > > > <linux- kernel@vger.kernel.org>; 'linux-pci@vger.kernel.org'
> > > > > <linux- pci@vger.kernel.org>; 'iommu@lists.linux-foundation.org'
> > > > > <iommu@lists.linux-foundation.org>; 'Bjorn Helgaas'
> > > > > <bhelgaas@google.com>; 'Joerg Roedel' <jroedel@suse.de>; 'Zhu, 
> > > > > Changfeng' <Changfeng.Zhu@amd.com>
> > > > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > > > as broken
> > > > >
> > > > > Remark:
> > > > >
> > > > > Systems with R1305G APU (which show the issue) have the 
> > > > > following
> > > > > VGA-
> > > > > Controller:
> > > > > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > > > > [AMD/ATI] Picasso (rev cf)
> > > > >
> > > > > Systems with V1404I APU (which do not show the issue) have the 
> > > > > following
> > > > > VGA-Controller:
> > > > > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > > > > [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile 
> > > > > Series] (rev 83)
> > > > >
> > > > > "rev cf" vs. "ref 83" is probably what you where referring to 
> > > > > with PCI Revision ID.
> > > > >
> > > > > -----Original Message-----
> > > > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > > > Sent: Mittwoch, 25. November 2020 07:05
> > > > > To: 'Deucher, Alexander' <Alexander.Deucher@amd.com>; Huang, Ray 
> > > > > <Ray.Huang@amd.com>; Kuehling, Felix <Felix.Kuehling@amd.com>
> > > > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > > > as broken
> > > > >
> > > > > I see that problem only on systems that use a R1305G APU
> > > > >
> > > > > sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info
> > > > >
> > > > > shows
> > > > >
> > > > > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > > > > version: 0, firmware version: 0x00000000 MC feature version: 0, 
> > > > > firmware
> > > > version:
> > > > > 0x00000000 ME feature version: 50, firmware version: 0x000000a3 
> > > > > PFP feature version: 50, firmware version: 0x000000bb CE feature
> > version:
> > > > > 50, firmware version: 0x0000004f RLC feature version: 1, 
> > > > > firmware
> > > version:
> > > > > 0x00000049 RLC SRLC feature version: 1, firmware version:
> > > > > 0x00000001 RLC SRLG feature version: 1, firmware version:
> > > > > 0x00000001 RLC SRLS feature
> > > > > version: 1, firmware version: 0x00000001 MEC feature version: 
> > > > > 50, firmware
> > > > > version: 0x000001b5
> > > > > MEC2 feature version: 50, firmware version: 0x000001b5 SOS 
> > > > > feature
> > > > version:
> > > > > 0, firmware version: 0x00000000 ASD feature version: 0, firmware
> > > version:
> > > > > 0x21000030 TA XGMI feature version: 0, firmware version:
> > > > > 0x00000000 TA RAS feature version: 0, firmware version: 
> > > > > 0x00000000 SMC feature
> > > > > version: 0, firmware version: 0x00002527
> > > > > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN 
> > > > > feature
> > > > > version: 0, firmware version: 0x0110901c DMCU feature version: 
> > > > > 0, firmware
> > > > > version: 0x00000001 VBIOS version: 113-RAVEN2-117
> > > > >
> > > > > We are also using V1404I APU on the same boards and I haven´t 
> > > > > seen the issue on those boards
> > > > >
> > > > > These boards give me slightly different info: sudo cat 
> > > > > /sys/kernel/debug/dri/0/amdgpu_firmware_info
> > > > >
> > > > > VCE feature version: 0, firmware version: 0x00000000 UVD feature
> > > > > version: 0, firmware version: 0x00000000 MC feature version: 0, 
> > > > > firmware
> > > > version:
> > > > > 0x00000000 ME feature version: 47, firmware version: 0x000000a2 
> > > > > PFP feature version: 47, firmware version: 0x000000b9 CE feature
> > version:
> > > > > 47, firmware version: 0x0000004e RLC feature version: 1, 
> > > > > firmware
> > > version:
> > > > > 0x00000213 RLC SRLC feature version: 1, firmware version:
> > > > > 0x00000001 RLC SRLG feature version: 1, firmware version:
> > > > > 0x00000001 RLC SRLS feature
> > > > > version: 1, firmware version: 0x00000001 MEC feature version: 
> > > > > 47, firmware
> > > > > version: 0x000001ab
> > > > > MEC2 feature version: 47, firmware version: 0x000001ab SOS 
> > > > > feature
> > > > version:
> > > > > 0, firmware version: 0x00000000 ASD feature version: 0, firmware
> > > version:
> > > > > 0x21000013 TA XGMI feature version: 0, firmware version:
> > > > > 0x00000000 TA RAS feature version: 0, firmware version: 
> > > > > 0x00000000 SMC feature
> > > > > version: 0, firmware version: 0x00001e5b
> > > > > SDMA0 feature version: 41, firmware version: 0x000000a9 VCN 
> > > > > feature
> > > > > version: 0, firmware version: 0x0110901c DMCU feature version: 
> > > > > 0, firmware
> > > > > version: 0x00000000 VBIOS version: 113-RAVEN-116
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > > Raven/Raven2 Root Complex
> > > > > 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2
> > > > IOMMU
> > > > > 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 
> > > > > 17h (Models
> > > > > 00h-1fh) PCIe Dummy Host Bridge
> > > > > 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD]
> > > > > Raven/Raven2 PCIe GPP Bridge [6:0]
> > > > > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > > > > Switch Upstream (PCIE SW.US)
> > > > > 00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD]
> > > > > Raven/Raven2 PCIe GPP Bridge [6:0]
> > > > > 00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > > > > Switch Upstream (PCIE SW.US)
> > > > > 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 
> > > > > 17h (Models
> > > > > 00h-1fh) PCIe Dummy Host Bridge
> > > > > 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD]
> > > > > Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A
> > > > > 00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD]
> > > > > Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus B
> > > > > 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus 
> > > > > Controller (rev 61)
> > > > > 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC 
> > > > > Bridge (rev
> > > > > 51)
> > > > > 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > > Raven/Raven2 Device 24: Function 0
> > > > > 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > > Raven/Raven2 Device 24: Function 1
> > > > > 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > > Raven/Raven2 Device 24: Function 2
> > > > > 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > > Raven/Raven2 Device 24: Function 3
> > > > > 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > > Raven/Raven2 Device 24: Function 4
> > > > > 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > > Raven/Raven2 Device 24: Function 5
> > > > > 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > > Raven/Raven2 Device 24: Function 6
> > > > > 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD]
> > > > > Raven/Raven2 Device 24: Function 7
> > > > > 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> > > > > RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 
> > > > > 0e)
> > > > > 01:00.1 Serial controller: Realtek Semiconductor Co., Ltd. 
> > > > > Device 816a (rev 0e)
> > > > > 01:00.2 Serial controller: Realtek Semiconductor Co., Ltd. 
> > > > > Device 816b (rev 0e)
> > > > > 01:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 
> > > > > 816c (rev 0e)
> > > > > 01:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 
> > > > > 816d (rev 0e)
> > > > > 02:00.0 Ethernet controller: Intel Corporation I210 Gigabit 
> > > > > Network Connection (rev 03)
> > > > > 03:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > > > 6-Port/8- Lane Packet Switch
> > > > > 04:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > > > 6-Port/8- Lane Packet Switch
> > > > > 04:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > > > 6-Port/8- Lane Packet Switch
> > > > > 04:03.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > > > 6-Port/8- Lane Packet Switch
> > > > > 04:04.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > > > 6-Port/8- Lane Packet Switch
> > > > > 04:05.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2
> > > > > 6-Port/8- Lane Packet Switch
> > > > > 06:00.0 Serial controller: Asix Electronics Corporation Device
> > > > > 9100
> > > > > 06:00.1 Serial controller: Asix Electronics Corporation Device
> > > > > 9100
> > > > > 07:00.0 Ethernet controller: Intel Corporation I210 Gigabit 
> > > > > Network Connection (rev 03)
> > > > > 0a:00.0 Ethernet controller: Intel Corporation I210 Gigabit 
> > > > > Network Connection (rev 03)
> > > > > 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> > > > > [AMD/ATI] Picasso (rev cf)
> > > > > 0b:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] 
> > > > > Raven/Raven2/Fenghuang HDMI/DP Audio Controller
> > > > > 0b:00.2 Encryption controller: Advanced Micro Devices, Inc. 
> > > > > [AMD] Family 17h (Models 10h-1fh) Platform Security Processor
> > > > > 0b:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] 
> > > > > Raven2 USB
> > > > > 3.1
> > > > > 0b:00.5 Multimedia controller: Advanced Micro Devices, Inc. 
> > > > > [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor
> > > > > 0b:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc.
> > > > > [AMD] Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver
> > > > > 0c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH 
> > > > > SATA Controller [AHCI mode] (rev 61)
> > > > >
> > > > > PCI Revision ID is 06 I believe. Got that from this lspci -xx
> > > > >
> > > > > 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin 
> > > > > Switch Upstream (PCIE SW.US)
> > > > > 00: 22 10 5d 14 07 04 10 00 00 00 04 06 10 00 81 00
> > > > > 10: 00 00 00 00 00 00 00 00 00 02 02 00 f1 01 00 00
> > > > > 20: e0 fc e0 fc f1 ff 01 00 00 00 00 00 00 00 00 00
> > > > > 30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 12 00
> > > > > 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > > > 50: 01 58 03 c8 00 00 00 00 10 a0 42 01 22 80 00 00
> > > > > 60: 1f 29 00 00 13 38 73 03 42 00 11 30 00 00 04 00
> > > > > 70: 00 00 40 01 18 00 01 00 00 00 00 00 bf 01 70 00
> > > > > 80: 06 00 00 00 0e 00 00 00 03 00 01 00 00 00 00 00
> > > > > 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > > > a0: 05 c0 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00
> > > > > b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > > > c0: 0d c8 00 00 22 10 34 12 08 00 03 a8 00 00 00 00
> > > > > d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > > > e0: 00 00 00 00 4c 8a 05 00 00 00 00 00 00 00 00 00
> > > > > f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > > >
> > > > > -----Original Message-----
> > > > > From: Deucher, Alexander <Alexander.Deucher@amd.com>
> > > > > Sent: Dienstag, 24. November 2020 16:06
> > > > > To: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > > <Edgar.Merger@emerson.com>;
> > > > > Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > > > > <Felix.Kuehling@amd.com>
> > > > > Cc: Will Deacon <will@kernel.org>; linux-kernel@vger.kernel.org;
> > > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > > > <jroedel@suse.de>; Zhu, Changfeng <Changfeng.Zhu@amd.com>
> > > > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > > > as broken
> > > > >
> > > > > [AMD Public Use]
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: Merger, Edgar [AUTOSOL/MAS/AUGS]
> > > > > <Edgar.Merger@emerson.com>
> > > > > > Sent: Tuesday, November 24, 2020 2:29 AM
> > > > > > To: Huang, Ray <Ray.Huang@amd.com>; Kuehling, Felix 
> > > > > > <Felix.Kuehling@amd.com>
> > > > > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > > > > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org;
> > > > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > > > Bjorn Helgaas <bhelgaas@google.com>; Joerg Roedel 
> > > > > > <jroedel@suse.de>; Zhu,
> > > > > Changfeng
> > > > > > <Changfeng.Zhu@amd.com>
> > > > > > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU 
> > > > > > ATS as broken
> > > > > >
> > > > > > Module Version : PiccasoCpu 10
> > > > > > AGESA Version   : PiccasoPI 100A
> > > > > >
> > > > > > I did not try to enter the system in any other way (like via
> > > > > > ssh) than via Desktop.
> > > > >
> > > > > You can get this information from the amdgpu driver.  E.g., sudo 
> > > > > cat /sys/kernel/debug/dri/0/amdgpu_firmware_info .  Also what is 
> > > > > the PCI revision id of your chip (from lspci)?  Also are you 
> > > > > just seeing this on specific versions of the sbios?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Alex
> > > > >
> > > > >
> > > > > >
> > > > > > -----Original Message-----
> > > > > > From: Huang Rui <ray.huang@amd.com>
> > > > > > Sent: Dienstag, 24. November 2020 07:43
> > > > > > To: Kuehling, Felix <Felix.Kuehling@amd.com>
> > > > > > Cc: Will Deacon <will@kernel.org>; Deucher, Alexander 
> > > > > > <Alexander.Deucher@amd.com>; linux-kernel@vger.kernel.org;
> > > > > > linux- pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > > > > > Bjorn Helgaas <bhelgaas@google.com>; Merger, Edgar
> > > [AUTOSOL/MAS/AUGS]
> > > > > > <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>;
> > > > > Changfeng
> > > > > > Zhu <changfeng.zhu@amd.com>
> > > > > > Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS 
> > > > > > as
> > > > > broken
> > > > > >
> > > > > > On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote:
> > > > > > > On 2020-11-23 5:33 p.m., Will Deacon wrote:
> > > > > > > > On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, 
> > > > > > > > Alexander
> > > > wrote:
> > > > > > > >> [AMD Public Use]
> > > > > > > >>
> > > > > > > >>> -----Original Message-----
> > > > > > > >>> From: Will Deacon <will@kernel.org>
> > > > > > > >>> Sent: Monday, November 23, 2020 8:44 AM
> > > > > > > >>> To: linux-kernel@vger.kernel.org
> > > > > > > >>> Cc: linux-pci@vger.kernel.org; 
> > > > > > > >>> iommu@lists.linux-foundation.org; Will Deacon 
> > > > > > > >>> <will@kernel.org>; Bjorn Helgaas <bhelgaas@google.com>; 
> > > > > > > >>> Deucher, Alexander <Alexander.Deucher@amd.com>; Edgar
> > > > Merger
> > > > > > > >>> <Edgar.Merger@emerson.com>; Joerg Roedel
> > > <jroedel@suse.de>
> > > > > > > >>> Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > > > > > > >>>
> > > > > > > >>> Edgar Merger reports that the AMD Raven GPU does not 
> > > > > > > >>> work reliably on his system when the IOMMU is enabled:
> > > > > > > >>>
> > > > > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > > > > > >>> timeout, signaled seq=1, emitted seq=3
> > > > > > > >>>    | [...]
> > > > > > > >>>    | amdgpu 0000:0b:00.0: GPU reset begin!
> > > > > > > >>>    | AMD-Vi: Completion-Wait loop timed out
> > > > > > > >>>    | iommu ivhd0: AMD-Vi: Event logged 
> > > > > > > >>> [IOTLB_INV_TIMEOUT
> > > > > > > >>> device=0b:00.0 address=0x38edc0970]
> > > > > > > >>>
> > > > > > > >>> This is indicative of a hardware/platform configuration 
> > > > > > > >>> issue so, since disabling ATS has been shown to resolve 
> > > > > > > >>> the problem, add a quirk to match this particular device 
> > > > > > > >>> while Edgar follows-up with AMD
> > > > > > for more information.
> > > > > > > >>>
> > > > > > > >>> Cc: Bjorn Helgaas <bhelgaas@google.com>
> > > > > > > >>> Cc: Alex Deucher <alexander.deucher@amd.com>
> > > > > > > >>> Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > > > > > > >>> Suggested-by: Joerg Roedel <jroedel@suse.de>
> > > > > > > >>> Link:
> > > > > > > >>>
> > > > > >
> > > > >
> > > >
> > >
> > https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Furld
> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > 3A__nam11.safelinks.p&amp
> > >
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> > c0d08d8
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> > 869349
> > >
> > 36%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> > zIiLCJBTiI
> > >
> > 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=q%2F2XCPX9jAIyCjZbej2q
> > arLwTai
> > > vnq3afaZPu%2BzlWp8%3D&amp;reserved=0
> > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > 252Furld&d=DwIFAw&c=jOU
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> > 862rdSP1
> > >
> > 3_P6LVp7j_9l1xmg&m=YkX6enlEevcTFbwL9p9WtRZLfFv4yrkYWGWII8q_ZSo
> > &s=n3lC5
> > > O0SPjN4j09x39L4oAOOQBED0Rc2xBoAmYeK7_o&e=
> > > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > 3A__nam11.safelinks.p&amp
> > > >
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> > ;data=04%7C01%7CAlexander.Deucher%40amd.com%7Cb29c13165c224c3794
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> > > >
> > >
> > 26%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> > > zIiLCJBTiI
> > > >
> > >
> > 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=2uB%2FmMkuxi%2Bc2Xb
> > > MD%2FhKpcw
> > > > QUxH49QfbCShTd227RDw%3D&amp;reserved=0
> > > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > > 252Furld&d=DwIFAw&c=jOU
> > > >
> > >
> > RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > 862rdSP1
> > > >
> > >
> > 3_P6LVp7j_9l1xmg&m=BIpm40CYGVSJNrmoqPI4DeIayU0tYU2D5NpRwfbkZv
> > > A&s=tmsZ3
> > > > ihrSXZ3g6wdJ2maxU9mJ1TGcRxd91z9IQTP00A&e=
> > > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
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> > 3A__nam11.safelinks.p&amp;data=04%7C01%7CAlexander.Deucher%40amd
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> > d994e183d%7C0%7C1%7C637419794843309283%7CUnknown%7CTWFpbGZsb
> > > >
> > >
> > 3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0
> > > >
> > >
> > %3D%7C1000&amp;sdata=4JGSwn7au4u%2FBB69mmq0%2BrWfVG12sEyd5H
> > > > oBUeiut9o%3D&amp;reserved=0
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> > > > 862rdSP1
> > > > > 3_P6LVp7j_9l1xmg&m=ZhN0Jau6oCc4cnz64IhGK2-
> > > > XDiD5D_6vW6ZYbifWYF0&s=ndvE-
> > > > > ezxTBweMMUjyMWdiCyPB6GDIS_eWs0kmZwqtpY&e=
> > > > > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
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> > > > > c9808d8
> > > > > >
> > > > >
> > > >
> > >
> > 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
> > > > > 3633797
> > > > > >
> > > > >
> > > >
> > >
> > 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
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> > > >
> > >
> > 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
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> > > > > > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > > > > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > > > > 252Furld&d=DwIFAw&c=jOU
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> > RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > > > 862rdSP1
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> > > > > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > > > >
> > > > >
> > > >
> > >
> > 3A__lore%26d%3DDwIDAw%26c%3DjOURTkCZzT8tVB5xPEYIm3YJGoxoTaQs
> > > > > > QPzPKJGaWbo%26r%3DBJxhacqqa4K1PJGm6_-
> > > > > >
> > > > >
> > > >
> > >
> > 862rdSP13_P6LVp7j_9l1xmg%26m%3DlNXu2xwvyxEZ3PzoVmXMBXXS55jsmf
> > > > > >
> > > > >
> > > >
> > >
> > DicuQFJqkIOH4%26s%3D_5VDNCRQdA7AhsvvZ3TJJtQZ2iBp9c9tFHIleTYT_ZM
> > > > > >
> > > > >
> > > >
> > >
> > %26e%3D&amp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5f
> > > > > >
> > > > >
> > > >
> > >
> > a241f9634692c03908d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7
> > > > > >
> > > > >
> > > >
> > >
> > C0%7C0%7C637417997272974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi
> > > > > >
> > > > >
> > > >
> > >
> > MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C100
> > > > > >
> > > > >
> > > >
> > >
> > 0&amp;sdata=OEgYlw%2F1YP0C%2FnWBRQUxwBH56mGOJxYMWSQ%2Fj1Y
> > > > > > 9f6Q%3D&amp;reserved=0 .
> > > > > > > >>> kernel.org/linux-
> > > > > > > >>>
> > > > > >
> > iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M
> > > > > > > >>> B1310.namprd10.prod.outlook.com
> > > > > > > >>>
> > > > > >
> > > > >
> > > >
> > >
> > her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > > > > > > >>>
> > > > > >
> > > > >
> > > >
> > >
> > 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > > > > > > >>>
> > > > > >
> > > > >
> > > >
> > >
> > CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > > > > > > >>>
> > > > > >
> > > > >
> > > >
> > >
> > LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > > > > > > >>> LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > > > > > > >>> Signed-off-by: Will Deacon <will@kernel.org>
> > > > > > > >>> ---
> > > > > > > >>>
> > > > > > > >>> Hi all,
> > > > > > > >>>
> > > > > > > >>> Since Joerg is away at the moment, I'm posting this to 
> > > > > > > >>> try to make some progress with the thread in the Link: tag.
> > > > > > > >> + Felix
> > > > > > > >>
> > > > > > > >> What system is this?  Can you provide more details?  Does 
> > > > > > > >> a sbios update fix this?  Disabling ATS for all Ravens 
> > > > > > > >> will break GPU compute for a lot of people.  I'd prefer 
> > > > > > > >> to just black list this particular system (e.g., just 
> > > > > > > >> SSIDs or
> > > > > > > >> revision) if
> > > possible.
> > > > > > >
> > > > > > > +Ray
> > > > > > >
> > > > > > > There are already many systems where the IOMMU is disabled 
> > > > > > > in the BIOS, or the CRAT table reporting the APU compute 
> > > > > > > capabilities is broken. Ray has been working on a fallback 
> > > > > > > to make APUs behave like dGPUs on such systems. That should 
> > > > > > > also cover this case where ATS is blacklisted. That said, it 
> > > > > > > affects the programming model, because we don't support the 
> > > > > > > unified and coherent memory model on dGPUs like we do on 
> > > > > > > APUs with
> > > IOMMUv2.
> > > > > > > So it would be good to
> > > > make
> > > > > > > the conditions for this workaround as narrow as possible.
> > > > > >
> > > > > > Yes, besides the comments from Alex and Felix, may we get your 
> > > > > > firmware version (SMC firmware which is from SBIOS) and device id?
> > > > > >
> > > > > > > >>>    | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx 
> > > > > > > >>> timeout, signaled seq=1, emitted seq=3
> > > > > >
> > > > > > It looks only gfx ib test passed, and fails to lanuch desktop, am I right?
> > > > > >
> > > > > > We would like to see whether it is Raven, Raven kicker (new 
> > > > > > Raven), or Picasso. In our side, per the internal test result, 
> > > > > > we didn't see the similiar issue on Raven kicker and Picasso platform.
> > > > > >
> > > > > > Thanks,
> > > > > > Ray
> > > > > >
> > > > > > >
> > > > > > > These are the relevant changes in KFD and Thunk for reference:
> > > > > > >
> > > > > > > ### KFD ###
> > > > > > >
> > > > > > > commit 914913ab04dfbcd0226ecb6bc99d276832ea2908
> > > > > > > Author: Huang Rui <ray.huang@amd.com>
> > > > > > > Date:   Tue Aug 18 14:54:23 2020 +0800
> > > > > > >
> > > > > > >      drm/amdkfd: implement the dGPU fallback path for apu 
> > > > > > > (v6)
> > > > > > >
> > > > > > >      We still have a few iommu issues which need to address, 
> > > > > > > so force raven
> > > > > > >      as "dgpu" path for the moment.
> > > > > > >
> > > > > > >      This is to add the fallback path to bypass IOMMU if 
> > > > > > > IOMMU
> > > > > > > v2 is disabled
> > > > > > >      or ACPI CRAT table not correct.
> > > > > > >
> > > > > > >      v2: Use ignore_crat parameter to decide whether it will 
> > > > > > > go with IOMMUv2.
> > > > > > >      v3: Align with existed thunk, don't change the way of 
> > > > > > > raven, only renoir
> > > > > > >          will use "dgpu" path by default.
> > > > > > >      v4: don't update global ignore_crat in the driver, and 
> > > > > > > revise fallback
> > > > > > >          function if CRAT is broken.
> > > > > > >      v5: refine acpi crat good but no iommu support case, 
> > > > > > > and rename the
> > > > > > >          title.
> > > > > > >      v6: fix the issue of dGPU initialized firstly, just 
> > > > > > > modify the report
> > > > > > >          value in the node_show().
> > > > > > >
> > > > > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > > > > >      Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
> > > > > > >      Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> > > > > > >
> > > > > > > ### Thunk ###
> > > > > > >
> > > > > > > commit e32482fa4b9ca398c8bdc303920abfd672592764
> > > > > > > Author: Huang Rui <ray.huang@amd.com>
> > > > > > > Date:   Tue Aug 18 18:54:05 2020 +0800
> > > > > > >
> > > > > > >      libhsakmt: remove is_dgpu flag in the hsa_gfxip_table
> > > > > > >
> > > > > > >      Whether use dgpu path will check the props which 
> > > > > > > exposed from
> > > > > kernel.
> > > > > > >      We won't need hard code in the ASIC table.
> > > > > > >
> > > > > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > > > > >      Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452
> > > > > > >
> > > > > > > commit 7c60f6d912034aa67ed27b47a29221422423f5cc
> > > > > > > Author: Huang Rui <ray.huang@amd.com>
> > > > > > > Date:   Thu Jul 30 10:22:23 2020 +0800
> > > > > > >
> > > > > > >      libhsakmt: implement the method that using flag which 
> > > > > > > exposed by kfd to configure is_dgpu
> > > > > > >
> > > > > > >      KFD already implemented the fallback path for APU. 
> > > > > > > Thunk will use flag
> > > > > > >      which exposed by kfd to configure is_dgpu instead of 
> > > > > > > hardcode
> > > > > before.
> > > > > > >
> > > > > > >      Signed-off-by: Huang Rui <ray.huang@amd.com>
> > > > > > >      Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb
> > > > > > >
> > > > > > > Regards,
> > > > > > >    Felix
> > > > > > >
> > > > > > >
> > > > > > > > Cheers, Alex. I'll have to defer to Edgar for the details, 
> > > > > > > > as my understanding from the original thread over at:
> > > > > > > >
> > > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> > https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Furld
> > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > 3A__nam11.safelinks.p&amp
> > >
> > ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C467e5e31a26440bd4
> > c0d08d8
> > >
> > 9cf98a9c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C6374319428
> > 869349
> > >
> > 36%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> > zIiLCJBTiI
> > >
> > 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=q%2F2XCPX9jAIyCjZbej2q
> > arLwTai
> > > vnq3afaZPu%2BzlWp8%3D&amp;reserved=0
> > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > 252Furld&d=DwIFAw&c=jOU
> > >
> > RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > 862rdSP1
> > >
> > 3_P6LVp7j_9l1xmg&m=YkX6enlEevcTFbwL9p9WtRZLfFv4yrkYWGWII8q_ZSo
> > &s=n3lC5
> > > O0SPjN4j09x39L4oAOOQBED0Rc2xBoAmYeK7_o&e=
> > > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > 3A__nam11.safelinks.p&amp
> > > >
> > >
> > ;data=04%7C01%7CAlexander.Deucher%40amd.com%7Cb29c13165c224c3794
> > > 2208d8
> > > >
> > >
> > 9c185604%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637430975
> > > 6442408
> > > >
> > >
> > 26%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> > > zIiLCJBTiI
> > > >
> > >
> > 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=2uB%2FmMkuxi%2Bc2Xb
> > > MD%2FhKpcw
> > > > QUxH49QfbCShTd227RDw%3D&amp;reserved=0
> > > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > > 252Furld&d=DwIFAw&c=jOU
> > > >
> > >
> > RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > 862rdSP1
> > > >
> > >
> > 3_P6LVp7j_9l1xmg&m=BIpm40CYGVSJNrmoqPI4DeIayU0tYU2D5NpRwfbkZv
> > > A&s=tmsZ3
> > > > ihrSXZ3g6wdJ2maxU9mJ1TGcRxd91z9IQTP00A&e=
> > > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > >
> > >
> > 3A__nam11.safelinks.p&amp;data=04%7C01%7CAlexander.Deucher%40amd
> > > >
> > >
> > .com%7C9194a443d95c4ffcb7f708d891ed0889%7C3dd8961fe4884e608e11a82
> > > >
> > >
> > d994e183d%7C0%7C1%7C637419794843309283%7CUnknown%7CTWFpbGZsb
> > > >
> > >
> > 3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0
> > > >
> > >
> > %3D%7C1000&amp;sdata=4JGSwn7au4u%2FBB69mmq0%2BrWfVG12sEyd5H
> > > > oBUeiut9o%3D&amp;reserved=0
> > > > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > > > 252Furld&d=DwIFAw&c=jOU
> > > > >
> > > >
> > >
> > RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > > 862rdSP1
> > > > > 3_P6LVp7j_9l1xmg&m=ZhN0Jau6oCc4cnz64IhGK2-
> > > > XDiD5D_6vW6ZYbifWYF0&s=ndvE-
> > > > > ezxTBweMMUjyMWdiCyPB6GDIS_eWs0kmZwqtpY&e=
> > > > > > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > > > 3A__nam11.safelinks.p&amp
> > > > > >
> > > > >
> > > >
> > >
> > ;data=04%7C01%7CAlexander.Deucher%40amd.com%7C1d797071822d47ce6
> > > > > c9808d8
> > > > > >
> > > > >
> > > >
> > >
> > 9129698f%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418954
> > > > > 3633797
> > > > > >
> > > > >
> > > >
> > >
> > 99%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM
> > > > > zIiLCJBTiI
> > > > > >
> > > > >
> > > >
> > >
> > 6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VLlzQtS3KWZqQslcJKZYrG
> > > > > sj6eMk3
> > > > > > VWaE%2BXhbNdRx80%3D&amp;reserved=0
> > > > > > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-
> > > > > 252Fur&d=DwIFAw&c=jOURT
> > > > > >
> > > >
> > kCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > > > 862rdSP13_
> > > > > > P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-
> > > > > udp1CLokf2QWuzFgE&s=IPZRolk
> > > > > > y3TYlbWPsOkY37MbDdzwhc1b_LaE6JkaOkOo&e=
> > > > > > > > ldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps-
> > > > > > 3A__lore.kernel.org&a
> > > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> > mp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5fa241f963469
> > > > > > 2c039
> > > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> > 08d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63741
> > > > > > 79972
> > > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> > 72974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> > > > > > V2luMzI
> > > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> > iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=iKTPucGQqcRXET
> > > > > > QZiQz
> > > > > > > > j90WdJeCYDytdZHJ1ZiUyR%2FM%3D&amp;reserved=0
> > > > > > > > _linux-
> > > 2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-
> > > > > > 40MWHPR10MB131
> > > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> > 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3Y
> > > > > > JGoxo
> > > > > > > > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-
> > > > > > 862rdSP13_P6LVp7j_9l1xmg&m=lNXu
> > > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> > 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU
> > > > > > 60y21
> > > > > > > > ijWZmZ8xmOK1cO_O0&e=
> > > > > > > >
> > > > > > > > is that this is a board developed by his company.
> > > > > > > >
> > > > > > > > Edgar -- please can you answer Alex's questions?
> > > > > > > >
> > > > > > > > Will

RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

[Merger, Edgar [AUTOSOL/MAS/AUGS]]

This is a board developed by my company.
Subsystem-ID is ea50:0c19 or ea50:cc10 (depending on which particular carrier board the compute module is attached to), however we haven´t managed yet to enter this Subsystem-ID to every PCI-Device in the system, because of missing means to do that by our UEFI-FW. This might will change if we update to latest AGESA version. 

-----Original Message-----
From: Will Deacon <will@kernel.org> 
Sent: Montag, 23. November 2020 23:34
To: Deucher, Alexander <Alexander.Deucher@amd.com>
Cc: linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; Bjorn Helgaas <bhelgaas@google.com>; Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>; Kuehling, Felix <Felix.Kuehling@amd.com>
Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken

On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander wrote:
> [AMD Public Use]
> 
> > -----Original Message-----
> > From: Will Deacon <will@kernel.org>
> > Sent: Monday, November 23, 2020 8:44 AM
> > To: linux-kernel@vger.kernel.org
> > Cc: linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; 
> > Will Deacon <will@kernel.org>; Bjorn Helgaas <bhelgaas@google.com>; 
> > Deucher, Alexander <Alexander.Deucher@amd.com>; Edgar Merger 
> > <Edgar.Merger@emerson.com>; Joerg Roedel <jroedel@suse.de>
> > Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken
> > 
> > Edgar Merger reports that the AMD Raven GPU does not work reliably 
> > on his system when the IOMMU is enabled:
> > 
> >   | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, 
> > signaled seq=1, emitted seq=3
> >   | [...]
> >   | amdgpu 0000:0b:00.0: GPU reset begin!
> >   | AMD-Vi: Completion-Wait loop timed out
> >   | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT
> > device=0b:00.0 address=0x38edc0970]
> > 
> > This is indicative of a hardware/platform configuration issue so, 
> > since disabling ATS has been shown to resolve the problem, add a 
> > quirk to match this particular device while Edgar follows-up with AMD for more information.
> > 
> > Cc: Bjorn Helgaas <bhelgaas@google.com>
> > Cc: Alex Deucher <alexander.deucher@amd.com>
> > Reported-by: Edgar Merger <Edgar.Merger@emerson.com>
> > Suggested-by: Joerg Roedel <jroedel@suse.de>
> > Link:
> > https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Flore&d=DwIBAg&c=jOURTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP13_P6LVp7j_9l1xmg&m=WjiRGepDgI7voSyaAJcvnvZb6gsvZ1fvcnR2tm6bGXg&s=O1nU-RafBXMAS7Mao5Gtu6o1Xkuj8fg4oHQs74TssuA&e= .
> > kernel.org%2Flinux-
> > iommu%2FMWHPR10MB1310F042A30661D4158520B589FC0%40MWHPR10M
> > B1310.namprd10.prod.outlook.com&amp;data=04%7C01%7Calexander.deuc
> > her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488
> > 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7
> > CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> > LCJXVCI6Mn0%3D%7C1000&amp;sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ
> > LOUfX5oGaoLN8n%2B8%3D&amp;reserved=0
> > Signed-off-by: Will Deacon <will@kernel.org>
> > ---
> > 
> > Hi all,
> > 
> > Since Joerg is away at the moment, I'm posting this to try to make 
> > some progress with the thread in the Link: tag.
> 
> + Felix
> 
> What system is this?  Can you provide more details?  Does a sbios 
> update fix this?  Disabling ATS for all Ravens will break GPU compute 
> for a lot of people.  I'd prefer to just black list this particular 
> system (e.g., just SSIDs or revision) if possible.

Cheers, Alex. I'll have to defer to Edgar for the details, as my understanding from the original thread over at:

https://urldefense.proofpoint.com/v2/url?u=https-3A__lore.kernel.org_linux-2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-40MWHPR10MB1310.namprd10.prod.outlook.com_&d=DwIBAg&c=jOURTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP13_P6LVp7j_9l1xmg&m=WjiRGepDgI7voSyaAJcvnvZb6gsvZ1fvcnR2tm6bGXg&s=9qyuCqHeOGaY1sKjkzNN5A6ks6PNF7V2M2PPckHyFKk&e= 

is that this is a board developed by his company.

Edgar -- please can you answer Alex's questions?

Will