bs=1048576 count=300 conv=sync
300+0 records in
300+0 records out
314572800 bytes (300.0MB) copied, 1.030541 seconds, 291.1MB/s
real0m 1.03s
user0m 0.00s
sys 0m 0.54s
Signed-off-by: Vivek Gautam
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/Makefile| 2 +-
drivers
-off-by: Sai Prakash Ranjan
---
drivers/firmware/qcom_scm-32.c | 5 +
drivers/firmware/qcom_scm-64.c | 13 +
drivers/firmware/qcom_scm.c| 6 ++
drivers/firmware/qcom_scm.h| 5 +
include/linux/qcom_scm.h | 2 ++
5 files changed, 31 insertions(+)
diff --git
-by: Vivek Gautam
Reviewed-by: Bjorn Andersson
Signed-off-by: Sai Prakash Ranjan
---
drivers/firmware/qcom_scm-64.c | 139 ++---
1 file changed, 95 insertions(+), 44 deletions(-)
diff --git a/drivers/firmware/qcom_scm-64.c b/drivers/firmware/qcom_scm-64.c
index 91
Previous version of the patches are at [1]:
QCOM's implementation of smmu-500 on sdm845 adds a hardware logic called
wait-for-safe. This logic helps in meeting the invalidation requirements
from 'real-time clients', such as display and camera. This wait-for-safe
logic ensures that the
-off-by: Sai Prakash Ranjan
---
drivers/firmware/qcom_scm-32.c | 5 +
drivers/firmware/qcom_scm-64.c | 13 +
drivers/firmware/qcom_scm.c| 6 ++
drivers/firmware/qcom_scm.h| 5 +
include/linux/qcom_scm.h | 2 ++
5 files changed, 31 insertions(+)
diff --git
bs=1048576 count=300 conv=sync
300+0 records in
300+0 records out
314572800 bytes (300.0MB) copied, 1.030541 seconds, 291.1MB/s
real0m 1.03s
user0m 0.00s
sys 0m 0.54s
Signed-off-by: Vivek Gautam
Reviewed-by: Robin Murphy
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/Makefile
Previous version of the patches are at [1]:
QCOM's implementation of smmu-500 on sdm845 adds a hardware logic called
wait-for-safe. This logic helps in meeting the invalidation requirements
from 'real-time clients', such as display and camera. This wait-for-safe
logic ensures that the
-by: Vivek Gautam
Reviewed-by: Bjorn Andersson
Signed-off-by: Sai Prakash Ranjan
---
drivers/firmware/qcom_scm-64.c | 139 ++---
1 file changed, 95 insertions(+), 44 deletions(-)
diff --git a/drivers/firmware/qcom_scm-64.c b/drivers/firmware/qcom_scm-64.c
index 91
Hi Stephen,
On 2019-09-06 20:37, Stephen Boyd wrote:
Quoting Vivek Gautam (2019-08-22 23:32:48)
diff --git a/drivers/iommu/arm-smmu-impl.c
b/drivers/iommu/arm-smmu-impl.c
index 3f88cd078dd5..0aef87c41f9c 100644
--- a/drivers/iommu/arm-smmu-impl.c
+++ b/drivers/iommu/arm-smmu-impl.c
@@ -102,7
Hi Stephen,
On 2019-09-06 20:42, Stephen Boyd wrote:
Quoting Vivek Gautam (2019-08-22 23:32:46)
There are scnenarios where drivers are required to make a
scm call in atomic context, such as in one of the qcom's
arm-smmu-500 errata [1].
[1]
Hi Robin,
On 2019-09-10 18:56, Robin Murphy wrote:
On 23/08/2019 07:32, Vivek Gautam wrote:
Add reset hook for sdm845 based platforms to turn off
the wait-for-safe sequence.
Understanding how wait-for-safe logic affects USB and UFS performance
on MTP845 and DB845 boards:
Qcom's
On 2019-09-19 06:27, Stephen Boyd wrote:
Quoting Sai Prakash Ranjan (2019-09-17 02:45:04)
diff --git a/drivers/iommu/arm-smmu-impl.c
b/drivers/iommu/arm-smmu-impl.c
index 3f88cd078dd5..d62da270f430 100644
--- a/drivers/iommu/arm-smmu-impl.c
+++ b/drivers/iommu/arm-smmu-impl.c
@@ -9,7 +9,6
On 2019-09-19 05:55, Bjorn Andersson wrote:
In the transition to this new design we lost the ability to
enable/disable the safe toggle per board, which according to Vivek
would result in some issue with Cheza.
Can you confirm that this is okay? (Or introduce the DT property for
enabling the
On 2019-09-19 08:48, Sai Prakash Ranjan wrote:
On 2019-09-19 05:55, Bjorn Andersson wrote:
In the transition to this new design we lost the ability to
enable/disable the safe toggle per board, which according to Vivek
would result in some issue with Cheza.
Can you confirm that this is okay
On 2019-09-20 01:30, Stephen Boyd wrote:
Quoting Sai Prakash Ranjan (2019-09-19 11:54:27)
On 2019-09-19 08:48, Sai Prakash Ranjan wrote:
> On 2019-09-19 05:55, Bjorn Andersson wrote:
>> In the transition to this new design we lost the ability to
>> enable/disable the safe t
-by: Vivek Gautam
Reviewed-by: Bjorn Andersson
Reviewed-by: Stephen Boyd
Signed-off-by: Sai Prakash Ranjan
---
drivers/firmware/qcom_scm-64.c | 138 ++---
1 file changed, 94 insertions(+), 44 deletions(-)
diff --git a/drivers/firmware/qcom_scm-64.c b/drivers/firmwar
bs=1048576 count=300 conv=sync
300+0 records in
300+0 records out
314572800 bytes (300.0MB) copied, 1.030541 seconds, 291.1MB/s
real0m 1.03s
user0m 0.00s
sys 0m 0.54s
Signed-off-by: Vivek Gautam
Reviewed-by: Robin Murphy
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/Makefile
Reviewed-by: Stephen Boyd
Signed-off-by: Sai Prakash Ranjan
---
drivers/firmware/qcom_scm-32.c | 5 +
drivers/firmware/qcom_scm-64.c | 13 +
drivers/firmware/qcom_scm.c| 6 ++
drivers/firmware/qcom_scm.h| 5 +
include/linux/qcom_scm.h | 2 ++
5 files changed, 31
Previous version of the patches are at [1]:
QCOM's implementation of smmu-500 on sdm845 adds a hardware logic called
wait-for-safe. This logic helps in meeting the invalidation requirements
from 'real-time clients', such as display and camera. This wait-for-safe
logic ensures that the
On 2019-11-04 21:53, Will Deacon wrote:
On Mon, Nov 04, 2019 at 03:15:06PM +, Will Deacon wrote:
On Sun, Nov 03, 2019 at 11:19:25PM -0600, Andy Gross wrote:
> On Fri, Nov 01, 2019 at 11:01:59PM +0530, Sai Prakash Ranjan wrote:
> > >>> What's the plan for getting this mer
On 2019-11-04 10:49, Andy Gross wrote:
On Fri, Nov 01, 2019 at 11:01:59PM +0530, Sai Prakash Ranjan wrote:
>>> What's the plan for getting this merged? I'm not happy taking the
>>> firmware
>>> bits without Andy's ack, but I also think the SMMU changes should go via
On 2019-10-24 16:51, Will Deacon wrote:
On Thu, Oct 24, 2019 at 04:41:04PM +0530, Sai Prakash Ranjan wrote:
On 2019-10-24 16:21, Will Deacon wrote:
> In commit 90ec7a76cc4b ("iommu/io-pgtable-arm: Add support to use system
> cache") we added support for IOMMU_QCOM_SYS_CACHE
Hi Will,
On 2019-10-24 16:21, Will Deacon wrote:
Hi all,
In commit 90ec7a76cc4b ("iommu/io-pgtable-arm: Add support to use
system
cache") we added support for IOMMU_QCOM_SYS_CACHE which was merged into
5.3.
This allows non-coherent devices to request an outer cacheable memory
type
On 2019-11-01 22:01, Will Deacon wrote:
On Fri, Sep 20, 2019 at 01:34:26PM +0530, Sai Prakash Ranjan wrote:
Previous version of the patches are at [1]:
QCOM's implementation of smmu-500 on sdm845 adds a hardware logic
called
wait-for-safe. This logic helps in meeting the invalidation
On 2019-11-01 22:55, Will Deacon wrote:
On Fri, Nov 01, 2019 at 10:49:00PM +0530, Sai Prakash Ranjan wrote:
On 2019-11-01 22:01, Will Deacon wrote:
> On Fri, Sep 20, 2019 at 01:34:26PM +0530, Sai Prakash Ranjan wrote:
> > Previous version of the patches are at [1]:
> >
> >
Hello Robin, Will
On 2020-01-22 17:18, Sai Prakash Ranjan wrote:
This series allows drm devices to set a default identity
mapping using iommu_request_dm_for_dev(). First patch is
a cleanup to support other SoCs to call into QCOM specific
implementation and preparation for second patch.
Second
implementation.
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/arm-smmu-impl.c | 8 +---
drivers/iommu/arm-smmu-qcom.c | 16 +---
2 files changed, 18 insertions(+), 6 deletions(-)
diff --git a/drivers/iommu/arm-smmu-impl.c b/drivers/iommu/arm-smmu-impl.c
index 74d97a886e93
Crouse (1):
iommu/arm-smmu: Allow client devices to select direct mapping
Sai Prakash Ranjan (1):
iommu: arm-smmu-impl: Convert to a generic reset implementation
drivers/iommu/arm-smmu-impl.c | 8 +++--
drivers/iommu/arm-smmu-qcom.c | 55 +--
drivers/iommu/arm
From: Jordan Crouse
Some client devices want to directly map the IOMMU themselves instead
of using the DMA domain. Allow those devices to opt in to direct
mapping by way of a list of compatible strings.
Signed-off-by: Jordan Crouse
Co-developed-by: Sai Prakash Ranjan
Signed-off-by: Sai
Hi Matthias,
On 2020-04-10 05:01, Matthias Kaehlcke wrote:
On Tue, Feb 04, 2020 at 11:12:17PM +0530, Sai Prakash Ranjan wrote:
Hello Robin, Will
On 2020-01-22 17:18, Sai Prakash Ranjan wrote:
> This series allows drm devices to set a default identity
> mapping using iommu_request_dm_f
Hi Joerg,
On 2020-04-13 20:42, Jordan Crouse wrote:
On Thu, Apr 09, 2020 at 04:31:24PM -0700, Matthias Kaehlcke wrote:
On Tue, Feb 04, 2020 at 11:12:17PM +0530, Sai Prakash Ranjan wrote:
> Hello Robin, Will
>
> On 2020-01-22 17:18, Sai Prakash Ranjan wrote:
> > This series all
Hi Robin,
On 2020-04-16 19:28, Robin Murphy wrote:
On 2020-01-22 11:48 am, Sai Prakash Ranjan wrote:
From: Jordan Crouse
Some client devices want to directly map the IOMMU themselves instead
of using the DMA domain. Allow those devices to opt in to direct
mapping by way of a list
Hi Robin,
On 2020-04-16 22:47, Robin Murphy wrote:
On 2020-04-16 5:23 pm, Sai Prakash Ranjan wrote:
Hi Robin,
On 2020-04-16 19:28, Robin Murphy wrote:
On 2020-01-22 11:48 am, Sai Prakash Ranjan wrote:
From: Jordan Crouse
Some client devices want to directly map the IOMMU themselves
On 2020-04-20 21:27, Robin Murphy wrote:
On 2020-04-20 3:37 pm, Sai Prakash Ranjan wrote:
From: Jordan Crouse
Some client devices want to directly map the IOMMU themselves instead
of using the DMA domain. Allow those devices to opt in to direct
mapping by way of a list of compatible strings
Hi Robin,
On 2020-04-20 20:56, Robin Murphy wrote:
On 2020-04-20 3:37 pm, Sai Prakash Ranjan wrote:
Implement the new def_domain_type call-back for the ARM
SMMU driver. We need this to support requesting the domain
type by the client devices.
Signed-off-by: Sai Prakash Ranjan
---
drivers
On 2020-04-20 22:27, Robin Murphy wrote:
On 2020-04-20 5:42 pm, Sai Prakash Ranjan wrote:
From: Jordan Crouse
Some client devices want to directly map the IOMMU themselves instead
of using the DMA domain. Allow those devices to opt in to direct
mapping by way of a list of compatible strings
From: Sibi Sankar
Add iommus property to allow Q6 modem to boot on platforms which do
not have trustZone.
Signed-off-by: Sibi Sankar
Signed-off-by: Sai Prakash Ranjan
Acked-by: Rob Herring
---
Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt | 3 +++
1 file changed, 3 insertions
way as per Robin.
* Use def_domain_type name for the callback in arm_smmu_imp as per Robin
Jordan Crouse (1):
iommu/arm-smmu: Allow client devices to select direct mapping
Sai Prakash Ranjan (2):
iommu: arm-smmu-impl: Convert to a generic reset implementation
iommu/arm-smmu: Implement
From: Sibi Sankar
Add iommus property to remoteproc modem node.
Signed-off-by: Sibi Sankar
Signed-off-by: Sai Prakash Ranjan
---
arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi | 5 +
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
b/arch/arm64/boot
Implement the new def_domain_type call-back for the ARM
SMMU driver. We need this to support requesting the domain
type by the client devices.
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/arm-smmu.c | 12
1 file changed, 12 insertions(+)
diff --git a/drivers/iommu/arm
-by: Sibi Sankar
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/arm-smmu-qcom.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/iommu/arm-smmu-qcom.c b/drivers/iommu/arm-smmu-qcom.c
index 5bedf21587a5..cf01d0215a39 100644
--- a/drivers/iommu/arm-smmu-qcom.c
+++ b/drivers/iommu
implementation.
Signed-off-by: Sai Prakash Ranjan
Reviewed-by: Bjorn Andersson
Reviewed-by: Stephen Boyd
Reviewed-by: Robin Murphy
---
drivers/iommu/arm-smmu-impl.c | 8 +---
drivers/iommu/arm-smmu-qcom.c | 16 +---
2 files changed, 18 insertions(+), 6 deletions(-)
diff --git a/drivers
From: Jordan Crouse
Some client devices want to directly map the IOMMU themselves instead
of using the DMA domain. Allow those devices to opt in to direct
mapping by way of a list of compatible strings.
Signed-off-by: Jordan Crouse
Co-developed-by: Sai Prakash Ranjan
Signed-off-by: Sai
mapping
v3:
* Use arm_smmu_master_cfg to get impl instead of long way as per Robin.
* Use def_domain_type name for the callback in arm_smmu_imp as per Robin
Jordan Crouse (1):
iommu/arm-smmu: Allow client devices to select direct mapping
Sai Prakash Ranjan (2):
iommu: arm-smmu-impl: Convert
don't have TrustZone.
Signed-off-by: Sibi Sankar
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/arm-smmu-qcom.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/iommu/arm-smmu-qcom.c b/drivers/iommu/arm-smmu-qcom.c
index 5bedf21587a5..cf01d0215a39 100644
--- a/drivers/iommu/arm
implementation.
Signed-off-by: Sai Prakash Ranjan
Reviewed-by: Bjorn Andersson
Reviewed-by: Stephen Boyd
Reviewed-by: Robin Murphy
---
drivers/iommu/arm-smmu-impl.c | 8 +---
drivers/iommu/arm-smmu-qcom.c | 16 +---
2 files changed, 18 insertions(+), 6 deletions(-)
diff --git a/drivers
Hi Robin,
On 2020-04-20 22:39, Robin Murphy wrote:
On 2020-04-20 5:42 pm, Sai Prakash Ranjan wrote:
From: Sibi Sankar
Request direct mapping for modem on platforms which don't have
TrustZone
(which programs the modem SIDs) to prevent the following global faults
seen
on Cheza/Trogdor
From: Sibi Sankar
Add iommus property to allow Q6 modem to boot on platforms which do
not have trustZone.
Signed-off-by: Sibi Sankar
Signed-off-by: Sai Prakash Ranjan
Acked-by: Rob Herring
---
Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt | 3 +++
1 file changed, 3 insertions
Implement the new def_domain_type call-back for the ARM
SMMU driver. We need this to support requesting the domain
type by the client devices.
Signed-off-by: Sai Prakash Ranjan
Reviewed-by: Robin Murphy
---
drivers/iommu/arm-smmu.c | 12
drivers/iommu/arm-smmu.h | 1 +
2 files
From: Jordan Crouse
Some client devices want to directly map the IOMMU themselves instead
of using the DMA domain. Allow those devices to opt in to direct
mapping by way of a list of compatible strings.
Signed-off-by: Jordan Crouse
Co-developed-by: Sai Prakash Ranjan
Signed-off-by: Sai
, GFSYNR2 0x
arm-smmu 1500.iommu: Unexpected global fault, this could be serious
arm-smmu 1500.iommu: GFSR 0x8002, GFSYNR0 0x,
GFSYNR1 0x0461, GFSYNR2 0x
Signed-off-by: Sibi Sankar
Signed-off-by: Sai Prakash Ranjan
---
arch/arm64
to select direct mapping
Sai Prakash Ranjan (2):
iommu: arm-smmu-impl: Convert to a generic reset implementation
iommu/arm-smmu: Implement iommu_ops->def_domain_type call-back
Sibi Sankar (3):
iommu/arm-smmu-qcom: Request direct mapping for modem device
dt-bindings: remoteproc: qcom:
From: Sibi Sankar
Add iommus property to remoteproc modem node.
Signed-off-by: Sibi Sankar
Signed-off-by: Sai Prakash Ranjan
---
arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi | 5 +
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
b/arch/arm64/boot
implementation.
Signed-off-by: Sai Prakash Ranjan
Reviewed-by: Bjorn Andersson
Reviewed-by: Stephen Boyd
Reviewed-by: Robin Murphy
---
drivers/iommu/arm-smmu-impl.c | 8 +---
drivers/iommu/arm-smmu-qcom.c | 16 +---
2 files changed, 18 insertions(+), 6 deletions(-)
diff --git a/drivers
From: Jordan Crouse
Some client devices want to directly map the IOMMU themselves instead
of using the DMA domain. Allow those devices to opt in to direct
mapping by way of a list of compatible strings.
Signed-off-by: Jordan Crouse
Co-developed-by: Sai Prakash Ranjan
Signed-off-by: Sai
Implement the new def_domain_type call-back for the ARM
SMMU driver. We need this to support requesting the domain
type by the client devices.
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/arm-smmu.c | 20
1 file changed, 20 insertions(+)
diff --git a/drivers/iommu
From: Sibi Sankar
Add iommus property to allow Q6 modem to boot on platforms which do
not have trustZone.
Signed-off-by: Sibi Sankar
Signed-off-by: Sai Prakash Ranjan
Acked-by: Rob Herring
---
Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt | 3 +++
1 file changed, 3 insertions
-by: Sibi Sankar
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/arm-smmu-qcom.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/iommu/arm-smmu-qcom.c b/drivers/iommu/arm-smmu-qcom.c
index 0b3f159065aa..d74892d3a776 100644
--- a/drivers/iommu/arm-smmu-qcom.c
+++ b/drivers/iommu
Hi Robin,
Thanks for taking a look at this.
On 2020-03-27 19:42, Robin Murphy wrote:
On 2020-03-27 1:28 pm, Sai Prakash Ranjan wrote:
Currently on reboot/shutdown, the following messages are
displayed on the console as error messages before the
system reboots/shutdown.
On SC7180:
arm
to debug since it does not offer much
help in identifying/fixing any issue as the system is anyways
going down and reduce spamming the kernel log.
Reported-by: Douglas Anderson
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/arm-smmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion
Hi Rob,
On 2020-03-27 21:47, Rob Clark wrote:
On Fri, Mar 27, 2020 at 8:10 AM Sai Prakash Ranjan
wrote:
Hi Robin,
Thanks for taking a look at this.
On 2020-03-27 19:42, Robin Murphy wrote:
> On 2020-03-27 1:28 pm, Sai Prakash Ranjan wrote:
>> Currently on reboot/shutdown, the
Hi Robin,
On 2020-03-28 00:32, Robin Murphy wrote:
On 2020-03-27 3:09 pm, Sai Prakash Ranjan wrote:
Imagine your network driver doesn't implement a .shutdown method (so
the hardware is still active regardless of device links), happens to
have an Rx buffer or descriptor ring DMA-mapped
Hi,
On 2020-03-30 23:54, Doug Anderson wrote:
Hi,
On Sat, Mar 28, 2020 at 12:35 AM Sai Prakash Ranjan
wrote:
> Of course the fact that in practice we'll *always* see the warning
> because there's no way to tear down the default DMA domains, and even
> if all devices *have* be
Hi Will,
On 2020-03-31 13:14, Will Deacon wrote:
On Tue, Mar 31, 2020 at 01:06:11PM +0530, Sai Prakash Ranjan wrote:
On 2020-03-30 23:54, Doug Anderson wrote:
> On Sat, Mar 28, 2020 at 12:35 AM Sai Prakash Ranjan
> wrote:
> >
> > > Of course the fact that in practi
from CP
getting invalid data, causing a cascade of fail.
Suggested-by: Rob Clark
Signed-off-by: Sai Prakash Ranjan
---
This has been attempted previously by Rob Clark in 2017, 2018.
Hopefully we can get something concluded in 2020.
* https://patchwork.kernel.org/patch/9953803/
* https
domains!
Make this error message more informative and less scary.
Reported-by: Douglas Anderson
Suggested-by: Robin Murphy
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/arm-smmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm
On 2020-04-23 14:58, Robin Murphy wrote:
On 2020-04-23 9:17 am, Sai Prakash Ranjan wrote:
[...]
Any update on the status here? If I'm reading the conversation
above,
Robin said: "we'll *always* see the warning because there's no way to
tear down the default DMA domains, and even i
Hi,
On 2020-04-23 01:19, Doug Anderson wrote:
Hi,
On Tue, Mar 31, 2020 at 12:53 AM Sai Prakash Ranjan
wrote:
Hi Will,
On 2020-03-31 13:14, Will Deacon wrote:
> On Tue, Mar 31, 2020 at 01:06:11PM +0530, Sai Prakash Ranjan wrote:
>> On 2020-03-30 23:54, Doug Anderson wrote:
>>
Hi Evan,
On 2020-04-14 04:42, Evan Green wrote:
On Wed, Jan 22, 2020 at 3:48 AM Sai Prakash Ranjan
wrote:
From: Jordan Crouse
Some client devices want to directly map the IOMMU themselves instead
of using the DMA domain. Allow those devices to opt in to direct
mapping by way of a list
Hi Will, Robin
On 2020-04-22 01:50, Sai Prakash Ranjan wrote:
Add stall implementation hook to enable stalling
faults on QCOM platforms which supports it without
causing any kind of hardware mishaps. Without this
on QCOM platforms, GPU faults can cause unrelated
GPU memory accesses to return
Hi Will, Joerg
On 2020-04-21 00:03, Sai Prakash Ranjan wrote:
This series allows DRM, Modem devices to set a default
identity mapping in qcom smmu implementation.
Patch 1 is cleanup to support other SoCs to call into
QCOM specific implementation.
Patch 2 sets the default identity domain
Hi,
On 2020-05-07 05:40, Doug Anderson wrote:
Hi,
On Thu, Apr 23, 2020 at 7:35 AM Doug Anderson
wrote:
Hi,
On Thu, Apr 23, 2020 at 2:55 AM Sai Prakash Ranjan
wrote:
>
> Currently on reboot/shutdown, the following messages are
> displayed on the console as error messag
Hi Will,
On 2020-05-07 16:01, Will Deacon wrote:
On Thu, May 07, 2020 at 03:58:06PM +0530, Sai Prakash Ranjan wrote:
Hi Will, Joerg
On 2020-04-21 00:03, Sai Prakash Ranjan wrote:
> This series allows DRM, Modem devices to set a default
> identity mapping in qcom smmu implementation.
>
On 2020-05-07 16:03, Robin Murphy wrote:
On 2020-05-07 11:04 am, Sai Prakash Ranjan wrote:
Hi,
On 2020-05-07 05:40, Doug Anderson wrote:
Hi,
On Thu, Apr 23, 2020 at 7:35 AM Doug Anderson
wrote:
Hi,
On Thu, Apr 23, 2020 at 2:55 AM Sai Prakash Ranjan
wrote:
>
> Currently on
l Deacon wrote:
> > >
> > > On Thu, May 07, 2020 at 11:55:54AM +0100, Robin Murphy wrote:
> > > > On 2020-05-07 11:14 am, Sai Prakash Ranjan wrote:
> > > > > On 2020-04-22 01:50, Sai Prakash Ranjan wrote:
> > > > > > Add stall implementation hook to
Hi Robin,
On 2020-05-07 16:25, Robin Murphy wrote:
On 2020-05-07 11:14 am, Sai Prakash Ranjan wrote:
Hi Will, Robin
On 2020-04-22 01:50, Sai Prakash Ranjan wrote:
Add stall implementation hook to enable stalling
faults on QCOM platforms which supports it without
causing any kind of hardware
Hi Robin,
On 2020-03-12 17:35, Robin Murphy wrote:
On 2020-03-12 6:28 am, Sai Prakash Ranjan wrote:
Hi Robin,
Are you talking about this one for SoC specific change -
https://lore.kernel.org/patchwork/patch/1183530/
Exactly - this particular wheel needs no reinventing at all.
[ I guess I
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/iommu.c | 7 ++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index a4c2f122eb8b..05f7b77c432f 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -1491,6 +1491,7
the
implementation specific context bank allocator has been consulted and
if
it decides to use a context bank for the identity map, don't enable
translation (i.e. omit ARM_SMMU_SCTLR_M).
Signed-off-by: Bjorn Andersson
---
Minor nit in the subject: identify -> identity
Reviewed-by: Sai Prakash Ran
Hi Bjorn,
On 2020-09-04 21:25, Bjorn Andersson wrote:
Based on previous attempts and discussions this is the latest attempt
at
inheriting stream mappings set up by the bootloader, for e.g. boot
splash or
efifb.
Per Will's request this builds on the work by Jordan and Rob for the
Adreno
SMMU
-by: Bjorn Andersson
---
Reviewed-by: Sai Prakash Ranjan
Tested-by: Sai Prakash Ranjan
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Prakash Ranjan
Tested-by: Sai Prakash Ranjan
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On 2020-09-04 21:25, Bjorn Andersson wrote:
For implementations of the ARM SMMU where stream mappings of bypass
type
are prohibited identity domains can be implemented by using context
banks with translation disabled.
Postpone the decision to skip allocating a context bank until the
_s2cr);
+ if (FIELD_GET(ARM_SMMU_S2CR_TYPE, reg) != S2CR_TYPE_BYPASS)
+ qsmmu->bypass_broken = true;
+
Clever :)
Reviewed-by: Sai Prakash Ranjan
Tested-by: Sai Prakash Ranjan
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On 2020-09-04 21:25, Bjorn Andersson wrote:
Add a new operation to allow platform implementations to inherit any
stream mappings from the boot loader.
Signed-off-by: Bjorn Andersson
---
Reviewed-by: Sai Prakash Ranjan
Tested-by: Sai Prakash Ranjan
--
QUALCOMM INDIA, on behalf of Qualcomm
to result in indeterministic results, as these
mappings might linger and reference context banks that Linux is
reconfiguring.
Use the fact that BYPASS writes result in FAULT type to force all
stream
mappings to FAULT.
Signed-off-by: Bjorn Andersson
---
Reviewed-by: Sai Prakash Ranjan
Tested-by: S
executed, in a later patch.
Signed-off-by: Bjorn Andersson
---
Reviewed-by: Sai Prakash Ranjan
Tested-by: Sai Prakash Ranjan
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of Code Aurora Forum, hosted by The Linux Foundation
parameter, as this can be read from the
newly passed object.
This allows us to not assign smmu_domain->smmu before attempting to
allocate the context bank and as such we don't need to roll back this
assignment on failure.
Signed-off-by: Bjorn Andersson
---
Reviewed-by: Sai Prakash Ranjan
Tes
Prakash Ranjan
---
drivers/gpu/drm/msm/msm_drv.c | 8
drivers/gpu/drm/msm/msm_drv.h | 1 +
drivers/gpu/drm/msm/msm_gpu.h | 5 +
3 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index abf5799d9a22..03caafa7c7b2
Use table and of_match_node() to match qcom implementation
instead of multiple of_device_compatible() calls for each
QCOM SMMU implementation.
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/arm/arm-smmu/arm-smmu-impl.c | 12
1 file changed, 8 insertions(+), 4 deletions
There are few places in arm-smmu-impl where there are
extra blank lines, remove them and while at it fix the
checkpatch warning for space required before the open
parenthesis.
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/arm/arm-smmu/arm-smmu-impl.c | 5 +
1 file changed, 1 insertion
.
Signed-off-by: Sharat Masetty
(saiprakash.ranjan: fix to set attr before device attach to iommu and rebase)
Signed-off-by: Sai Prakash Ranjan
---
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 83 +
drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 4 ++
drivers/gpu/drm/msm/adreno
Add a quirk IO_PGTABLE_QUIRK_SYS_CACHE to override the
attributes set in TCR for the page table walker when
using system cache.
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/io-pgtable-arm.c | 7 ++-
include/linux/io-pgtable.h | 4
2 files changed, 10 insertions(+), 1
Add iommu domain attribute for using system cache aka last level
cache by client drivers like GPU to set right attributes for caching
the hardware pagetables into the system cache.
Signed-off-by: Sai Prakash Ranjan
---
drivers/iommu/arm/arm-smmu/arm-smmu.c | 17 +
drivers/iommu
On 2020-09-11 21:33, Robin Murphy wrote:
On 2020-09-11 15:28, Sai Prakash Ranjan wrote:
There are few places in arm-smmu-impl where there are
extra blank lines, remove them
FWIW those were deliberate - sometimes I like a bit of subtle space to
visually delineate distinct groups of definitions
latest split pagetables and per-instance
pagetables support
Changes in v2:
* Addressed review comments and rebased on top of Jordan's split
pagetables series
Sai Prakash Ranjan (4):
iommu/io-pgtable-arm: Add support to use system cache
iommu/arm-smmu: Add domain attribute for system cache
On 2020-09-11 21:37, Will Deacon wrote:
On Fri, Sep 11, 2020 at 05:03:06PM +0100, Robin Murphy wrote:
BTW am I supposed to have received 3 copies of everything? Because I
did...
Yeah, this seems to be happening for all of Sai's emails :/
Sorry, I am not sure what went wrong as I only sent
On 2020-09-11 22:04, Robin Murphy wrote:
On 2020-09-11 17:21, Sai Prakash Ranjan wrote:
On 2020-09-11 21:37, Will Deacon wrote:
On Fri, Sep 11, 2020 at 05:03:06PM +0100, Robin Murphy wrote:
BTW am I supposed to have received 3 copies of everything? Because I
did...
Yeah, this seems
On 2020-09-11 22:20, Sai Prakash Ranjan wrote:
On 2020-09-11 22:04, Robin Murphy wrote:
On 2020-09-11 17:21, Sai Prakash Ranjan wrote:
On 2020-09-11 21:37, Will Deacon wrote:
On Fri, Sep 11, 2020 at 05:03:06PM +0100, Robin Murphy wrote:
BTW am I supposed to have received 3 copies
Hi,
On 2020-08-26 03:45, Doug Anderson wrote:
Hi,
On Tue, Aug 25, 2020 at 12:01 PM Sai Prakash Ranjan
wrote:
Hi,
On 2020-08-25 21:40, Doug Anderson wrote:
> Hi,
>
> On Tue, Aug 25, 2020 at 8:43 AM Sai Prakash Ranjan
> wrote:
>>
>> Currently the non-strict or lazy
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