> -Original Message-
> From: Frederic Barrat <fbar...@linux.ibm.com>
> Sent: Friday, 11 May 2018 7:25 PM
> To: Alastair D'Silva <alast...@au1.ibm.com>; linuxppc-...@lists.ozlabs.org
> Cc: linux-ker...@vger.kernel.org; linux-doc@vger.kernel.org
From: Alastair D'Silva <alast...@d-silva.org>
In order to successfully issue as_notify, an AFU needs to know the TID
to notify, which in turn means that this information should be
available in userspace so it can be communicated to the AFU.
Signed-off-by: Alastair D'Silva <alast...@d-
From: Alastair D'Silva <alast...@d-silva.org>
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
Documentation/accelerators/ocxl.rst | 11 +++
1 file changed, 11 insertions(+)
diff --git a/Documentation/accelerators/ocxl.rst
b/Documentation/accelerators/oc
From: Alastair D'Silva <alast...@d-silva.org>
The function removes the process element from NPU cache.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
arch/powerpc/include/asm/pnv-ocxl.h | 2 +-
arch/powerpc/platforms/powernv/ocxl.c | 4 ++--
drivers/misc
From: Alastair D'Silva <alast...@d-silva.org>
The current implementation of TID allocation, using a global IDR, may
result in an errant process starving the system of available TIDs.
Instead, use task_pid_nr(), as mentioned by the original author. The
scenario described which prevented it
From: Alastair D'Silva <alast...@d-silva.org>
This patch adds a CPU feature bit to show whether the CPU has
the TIDR register available, enabling as_notify/wait in userspace.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
arch/powerpc/include/asm/cputable.h | 3 ++-
From: Alastair D'Silva <alast...@d-silva.org>
The Power 9 as_notify/wait feature provides a lower latency way to
signal a thread that work is complete. This series enables the use of
this feature from OpenCAPI adapters, as well as addressing a potential
starvation issue when allocating thre
From: Alastair D'Silva <alast...@d-silva.org>
In order for a userspace AFU driver to call the POWER9 specific
OCXL_IOCTL_ENABLE_P9_WAIT, it needs to verify that it can actually
make that call.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
drivers/misc/ocxl
From: Alastair D'Silva <alast...@d-silva.org>
Switch the use of TIDR on it's CPU feature, rather than assuming it
is available based on architecture.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
arch/powerpc/kernel/process.c | 6 +++---
1 file changed, 3 insertions(+),
From: Alastair D'Silva <alast...@d-silva.org>
The current implementation of TID allocation, using a global IDR, may
result in an errant process starving the system of available TIDs.
Instead, use task_pid_nr(), as mentioned by the original author. The
scenario described which prevented it
From: Alastair D'Silva <alast...@d-silva.org>
In order for a userspace AFU driver to call the POWER9 specific
OCXL_IOCTL_ENABLE_P9_WAIT, it needs to verify that it can actually
make that call.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
drivers/misc/ocxl
From: Alastair D'Silva <alast...@d-silva.org>
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
Documentation/accelerators/ocxl.rst | 11 +++
1 file changed, 11 insertions(+)
diff --git a/Documentation/accelerators/ocxl.rst
b/Documentation/accelerators/oc
From: Alastair D'Silva <alast...@d-silva.org>
The function removes the process element from NPU cache.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
arch/powerpc/include/asm/pnv-ocxl.h | 2 +-
arch/powerpc/platforms/powernv/ocxl.c | 4 ++--
drivers/misc
From: Alastair D'Silva <alast...@d-silva.org>
In order to successfully issue as_notify, an AFU needs to know the TID
to notify, which in turn means that this information should be
available in userspace so it can be communicated to the AFU.
Signed-off-by: Alastair D'Silva <alast...@d-
From: Alastair D'Silva <alast...@d-silva.org>
Switch the use of TIDR on it's CPU feature, rather than assuming it
is available based on architecture.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
arch/powerpc/kernel/process.c | 6 +++---
1 file changed, 3 insertions(+),
From: Alastair D'Silva <alast...@d-silva.org>
The Power 9 as_notify/wait feature provides a lower latency way to
signal a thread that work is complete. This series enables the use of
this feature from OpenCAPI adapters, as well as addressing a potential
starvation issue when allocating thre
From: Alastair D'Silva <alast...@d-silva.org>
This patch adds a CPU feature bit to show whether the CPU has
the TIDR register available, enabling as_notify/wait in userspace.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
arch/powerpc/include/asm/cputable.h | 3 ++-
From: Alastair D'Silva <alast...@d-silva.org>
Switch the use of TIDR on it's CPU feature, rather than assuming it
is available based on architecture.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
arch/powerpc/kernel/process.c | 6 +++---
1 file changed, 3 insertions(+),
From: Alastair D'Silva <alast...@d-silva.org>
This patch adds a CPU feature bit to show whether the CPU has
the TIDR register available, enabling as_notify/wait in userspace.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
arch/powerpc/include/asm/cputable.h | 3 ++-
From: Alastair D'Silva <alast...@d-silva.org>
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
Documentation/accelerators/ocxl.rst | 11 +++
1 file changed, 11 insertions(+)
diff --git a/Documentation/accelerators/ocxl.rst
b/Documentation/accelerators/oc
From: Alastair D'Silva <alast...@d-silva.org>
The Power 9 as_notify/wait feature provides a lower latency way to
signal a thread that work is complete. This series enables the use of
this feature from OpenCAPI adapters, as well as addressing a potential
starvation issue when allocating thre
From: Alastair D'Silva <alast...@d-silva.org>
The function removes the process element from NPU cache.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
arch/powerpc/include/asm/pnv-ocxl.h | 2 +-
arch/powerpc/platforms/powernv/ocxl.c | 4 ++--
drivers/misc
From: Alastair D'Silva <alast...@d-silva.org>
In order for a userspace AFU driver to call the POWER9 specific
OCXL_IOCTL_ENABLE_P9_WAIT, it needs to verify that it can actually
make that call.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
drivers/misc/ocxl
From: Alastair D'Silva <alast...@d-silva.org>
In order to successfully issue as_notify, an AFU needs to know the TID
to notify, which in turn means that this information should be
available in userspace so it can be communicated to the AFU.
Signed-off-by: Alastair D'Silva <alast...@d-
On Tue, 2018-05-08 at 13:50 +1000, Nicholas Piggin wrote:
> On Tue, 08 May 2018 10:41:55 +1000
> "Alastair D'Silva" <alast...@au1.ibm.com> wrote:
>
> > On Mon, 2018-05-07 at 20:14 +0200, Frederic Barrat wrote:
> > >
> > > Le 18/04/2018 à 03:08, Al
On Mon, 2018-05-07 at 19:17 +0200, Frederic Barrat wrote:
>
> Le 18/04/2018 à 03:08, Alastair D'Silva a écrit :
> > From: Alastair D'Silva <alast...@d-silva.org>
> >
> > This patch adds a CPU feature bit to show whether the CPU has
> > the TIDR registe
On Mon, 2018-05-07 at 20:14 +0200, Frederic Barrat wrote:
>
> Le 18/04/2018 à 03:08, Alastair D'Silva a écrit :
> > From: Alastair D'Silva <alast...@d-silva.org>
> >
> > In order for a userspace AFU driver to call the Power9 specific
> > OCXL_IOCTL_ENABLE_P9_
On Mon, 2018-05-07 at 19:37 +0200, Frederic Barrat wrote:
>
> Le 18/04/2018 à 03:08, Alastair D'Silva a écrit :
> > From: Alastair D'Silva <alast...@d-silva.org>
> >
> > The current implementation of TID allocation, using a global IDR,
> > may
> > resul
From: Alastair D'Silva <alast...@d-silva.org>
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
Documentation/accelerators/ocxl.rst | 11 +++
1 file changed, 11 insertions(+)
diff --git a/Documentation/accelerators/ocxl.rst
b/Documentation/accelerators/oc
From: Alastair D'Silva <alast...@d-silva.org>
In order for a userspace AFU driver to call the Power9 specific
OCXL_IOCTL_ENABLE_P9_WAIT, it needs to verify that it can actually
make that call.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
Documentation/accelerators/o
From: Alastair D'Silva <alast...@d-silva.org>
In order to successfully issue as_notify, an AFU needs to know the TID
to notify, which in turn means that this information should be
available in userspace so it can be communicated to the AFU.
Signed-off-by: Alastair D'Silva <alast...@d-
From: Alastair D'Silva <alast...@d-silva.org>
Switch the use of TIDR on it's CPU feature, rather than assuming it
is available based on architecture.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
arch/powerpc/kernel/process.c | 6 +++---
1 file changed, 3 insertions(+),
From: Alastair D'Silva <alast...@d-silva.org>
This patch adds a CPU feature bit to show whether the CPU has
the TIDR register available, enabling as_notify/wait in userspace.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
arch/powerpc/include/asm/cputable.h | 3 ++-
From: Alastair D'Silva <alast...@d-silva.org>
The function removes the process element from NPU cache.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
arch/powerpc/include/asm/pnv-ocxl.h | 2 +-
arch/powerpc/platforms/powernv/ocxl.c | 4 ++--
drivers/misc
From: Alastair D'Silva <alast...@d-silva.org>
The Power 9 as_notify/wait feature provides a lower latency way to
signal a thread that work is complete. This series enables the use of
this feature from OpenCAPI adapters, as well as addressing a potential
starvation issue when allocating thre
From: Alastair D'Silva <alast...@d-silva.org>
The current implementation of TID allocation, using a global IDR, may
result in an errant process starving the system of available TIDs.
Instead, use task_pid_nr(), as mentioned by the original author. The
scenario described which prevented it
On Tue, 2018-04-17 at 14:21 +1000, Andrew Donnellan wrote:
> On 17/04/18 12:09, Alastair D'Silva wrote:
> > From: Alastair D'Silva <alast...@d-silva.org>
> >
> > Switch the use of TIDR on it's CPU feature, rather than assuming it
> > is available based on
From: Alastair D'Silva <alast...@d-silva.org>
The function removes the process element from NPU cache.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
arch/powerpc/include/asm/pnv-ocxl.h | 2 +-
arch/powerpc/platforms/powernv/ocxl.c | 4 ++--
drivers/misc
From: Alastair D'Silva <alast...@d-silva.org>
In order to successfully issue as_notify, an AFU needs to know the TID
to notify, which in turn means that this information should be
available in userspace so it can be communicated to the AFU.
Signed-off-by: Alastair D'Silva <alast...@d-
From: Alastair D'Silva <alast...@d-silva.org>
In order for a userspace AFU driver to call the Power9 specific
OCXL_IOCTL_ENABLE_P9_WAIT, it needs to verify that it can actually
make that call.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
drivers/misc/ocxl
From: Alastair D'Silva <alast...@d-silva.org>
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
Documentation/accelerators/ocxl.rst | 10 ++
1 file changed, 10 insertions(+)
diff --git a/Documentation/accelerators/ocxl.rst
b/Documentation/accelerators/oc
From: Alastair D'Silva <alast...@d-silva.org>
Switch the use of TIDR on it's CPU feature, rather than assuming it
is available based on architecture.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
arch/powerpc/kernel/process.c | 4 ++--
1 file changed, 2 insertions(+),
From: Alastair D'Silva <alast...@d-silva.org>
The current implementation of TID allocation, using a global IDR, may
result in an errant process starving the system of available TIDs.
Instead, use task_pid_nr(), as mentioned by the original author. The
scenario described which prevented it
From: Alastair D'Silva <alast...@d-silva.org>
This patch adds a CPU feature bit to show whether the CPU has
the TIDR register available, enabling as_notify/wait in userspace.
Signed-off-by: Alastair D'Silva <alast...@d-silva.org>
---
arch/powerpc/include/asm/cputable.h | 3 ++-
From: Alastair D'Silva <alast...@d-silva.org>
The Power 9 as_notify/wait feature provides a lower latency way to
signal a thread that work is complete. This series enables the use of
this feature from OpenCAPI adapters, as well as addressing a potential
starvation issue when allocating thre
45 matches
Mail list logo
