This patch does two things.
Firstly it presents the Accelerator Function Unit (AFUs) behind the POWER
Service Layer (PSL) as PCI devices on a virtual PCI Host Bridge (vPHB). This
in in addition to the PSL being a PCI device itself.
As part of the Coherent Accelerator Interface Architecture (CAIA
The cxl kernel API will allow drivers other than cxl to export a file
descriptor which has the same userspace API. These file descriptors will be
able to be used against libcxl.
This exports those file ops for use by other drivers.
Signed-off-by: Michael Neuling
Acked-by: Ian Munsie
---
drive
This moves the current include file from cxl.h -> cxl-base.h. This current
include file is used only to pass information between the base driver that
needs to be built into the kernel and the cxl module.
This is to make way for a new include/misc/cxl.h which will
contain just the kernel API for o
Cleanup Makefile by fixing line wrapping.
Signed-off-by: Michael Neuling
Acked-by: Ian Munsie
---
drivers/misc/cxl/Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/misc/cxl/Makefile b/drivers/misc/cxl/Makefile
index edb494d..f9f5514 100644
--- a/drivers/mis
This reworks contexts lifetimes a bit to enable the kernel API where we may
want to reuse contexts. Here we will want to start and stop contexts without
freeing them.
Start context does the get pid & ctx so stop context will need to do the puts.
Here we move put pid & ctx to the detach context pat
This updates AFU directed and dedicated modes for contexts attached to the
kernel.
The SR (similar to the MSR in the core) calculation is getting
quite complex and is duplicated in AFU directed and dedicated
modes. This patch also merges this SR calculation for these modes.
Signed-off-by: Michae
Split the afu_register_irqs() function so that different parts can
be useful elsewhere.
Signed-off-by: Michael Neuling
Acked-by: Ian Munsie
---
drivers/misc/cxl/cxl.h | 1 +
drivers/misc/cxl/irq.c | 31 ---
2 files changed, 25 insertions(+), 7 deletions(-)
diff --g
We only need to check the pid attached to this context for userspace contexts.
Kernel contexts can skip this check.
Signed-off-by: Michael Neuling
Acked-by: Ian Munsie
---
drivers/misc/cxl/fault.c | 34 +++---
1 file changed, 19 insertions(+), 15 deletions(-)
diff -
Export some symbols which will soon be used elsewhere in this driver.
Now they are global we rename them so to avoid collisions.
Signed-off-by: Michael Neuling
Acked-by: Ian Munsie
---
drivers/misc/cxl/cxl.h| 5 +
drivers/misc/cxl/native.c | 10 +-
2 files changed, 10 insertio
Rename cxl_afu_reset() to __cxl_afu_reset() to we can reuse this function name
in the API.
Signed-off-by: Michael Neuling
Acked-by: Ian Munsie
---
drivers/misc/cxl/cxl.h| 2 +-
drivers/misc/cxl/native.c | 8
drivers/misc/cxl/pci.c| 4 ++--
drivers/misc/cxl/sysfs.c | 2 +-
4 fi
Rework __detach_context() and cxl_context_detach() so we can reuse them in the
kernel API.
Signed-off-by: Michael Neuling
Acked-by: Ian Munsie
---
drivers/misc/cxl/context.c | 20 +---
drivers/misc/cxl/cxl.h | 1 +
2 files changed, 14 insertions(+), 7 deletions(-)
diff --g
Add cookie parameter to afu_release_irqs() so that we can pass in a different
cookie than the context structure. This will be useful for other kernel
drivers that want to call this but get their own cookie back in the interrupt
handler.
Update all existing call sites.
Signed-off-by: Michael Neul
Now that we parse the AFU Configuration record, dump some info on it when in
debug mode.
Signed-off-by: Michael Neuling
Acked-by: Ian Munsie
---
drivers/misc/cxl/pci.c | 12 +++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.
When probing we call pci_enable_device() but don't call pci_disable_device() on
fail. This causes refcounting issues in the PCI subsystem if a second driver
tries to bind to the same device.
This patch adds the pci_disable_device() to the probe error path. This error
path is hit when this cxl driv
From: Ian Munsie
When we expose AFUs as virtual PCI devices, they may look like the physical
CAPI PCI card. ie they may have the same vendor/device IDs.
We want to avoid these AFUs binding to this driver and any init this driver may
do.
Re-order card init to check the VSEC earlier before assig
Signed-off-by: Michael Neuling
Acked-by: Ian Munsie
---
drivers/misc/cxl/pci.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index a9c90d2..8076aa3 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -1119,8 +1119,6 @@ static
Signed-off-by: Michael Neuling
Acked-by: Ian Munsie
---
drivers/misc/cxl/pci.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index b80f867..a9c90d2 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -1135,4 +1135,5 @@ struct
Now that libcxl is public, let's document it.
Signed-off-by: Michael Neuling
Acked-by: Ian Munsie
---
Documentation/ABI/testing/sysfs-class-cxl | 22 ++
Documentation/powerpc/cxl.txt | 4
2 files changed, 26 insertions(+)
diff --git a/Documentation/ABI/tes
This adds a hook into the powerpc pci code for pci_disable_device() calls. The
generic code already provides a weak pcibios_disable_device() symbol, so we
just need to provide our own in powerpc and it'll get picked up.
This is passed directly to the phb controller ops, provided one exists.
Sign
Currently pnv_pci_shutdown() calls the PHB shutdown code for all PHBs in the
system. It dereferences the private_data assuming it's a powernv PHB, which
won't be the case when we have different PHB in the systems (like when we add
vPHBs for CXL).
This moves the shutdown hook to the pci_controller
Add cxl context pointer to archdata. We'll want to create one of these for cxl
PCI devices. Put them here until we can get a pci_dev specific private data.
This location was suggested by benh.
Signed-off-by: Michael Neuling
---
arch/powerpc/include/asm/device.h | 3 +++
1 file changed, 3 inse
Add release_device() hook to phb ops so we can clean up for specific phbs.
Signed-off-by: Michael Neuling
---
arch/powerpc/include/asm/pci-bridge.h | 2 ++
arch/powerpc/kernel/pci-hotplug.c | 5 +
2 files changed, 7 insertions(+)
diff --git a/arch/powerpc/include/asm/pci-bridge.h
b/arc
From: Daniel Axtens
Export pcibios_claim_one_bus, pcibios_scan_phb and pcibios_alloc_controller.
These will be used by the CXL driver.
Signed-off-by: Daniel Axtens
---
arch/powerpc/kernel/pci-common.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/kernel/pci-common.c b/ar
This fixes calculating the key bits (KP and KS) in the SLB VSID for kernel
mappings.
I'm not CCing this to stable as there are no uses of this currently.
Signed-off-by: Michael Neuling
---
arch/powerpc/mm/copro_fault.c | 7 +--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/a
This patch series adds the ability to present AFUs as PCI devices on a virtual
PHB.
It also adds an in kernel API (to the existing userspace API) so AFU drivers
can be written as kernel drivers.
This series is dependant on Daniel DMA set mask and MSI PCI controller ops
patch series.
v3:
Cleans u
On Wed, 27 May 2015 02:11:13 +0200
Greg Kurz wrote:
> SLOF currently calls hv-logical-load and hv-logical-store for every pixel
> when enabling or disabling the cursor. This is suboptimal when writing one
> char at a time to the console since terminal-write always toggles the cursor.
> And this i
Greg Kurz writes:
> SLOF currently calls hv-logical-load and hv-logical-store for every pixel
> when enabling or disabling the cursor. This is suboptimal when writing one
> char at a time to the console since terminal-write always toggles the cursor.
> And this is precisely what grub is doing whe
On Thu, Apr 30, 2015 at 09:29:22AM +0300, Igal.Liberman wrote:
> From: Igal Liberman
>
> Describe the PHY topology for all configurations supported by each board
>
> Based on prior work by Andy Fleming
>
> Signed-off-by: Igal Liberman
> Signed-off-by: Shruti Kanetkar
> Signed-off-by: Emil Me
SLOF currently calls hv-logical-load and hv-logical-store for every pixel
when enabling or disabling the cursor. This is suboptimal when writing one
char at a time to the console since terminal-write always toggles the cursor.
And this is precisely what grub is doing when the user wants to edit a m
In 64 bit kernels, the Fixed Point Exception Register (XER) is a 64
bit field (e.g. in kvm_regs and kvm_vcpu_arch) and in most places it is
accessed as such.
This patch corrects places where it is accessed as a 32 bit field by a
64 bit kernel. In some cases this is via a 32 bit load or store
inst
On Tue, May 26, 2015 at 10:35:08AM +0200, Alexander Graf wrote:
>
>
> On 26.05.15 02:27, Sam Bobroff wrote:
> > In 64 bit kernels, the Fixed Point Exception Register (XER) is a 64
> > bit field (e.g. in kvm_regs and kvm_vcpu_arch) and in most places it is
> > accessed as such.
> >
> > This patch
On Tue, 2015-05-26 at 15:10 +1000, Anton Blanchard wrote:
> When we take a PMU exception or a software event we call
> perf_read_regs(). This overloads regs->result with a boolean that
> describes if we should use the sampled instruction address register
> (SIAR) or the regs.
>
> If the exception
On Tue, May 26, 2015 at 07:02:48PM +0800, Zidan Wang wrote:
> On Mon, May 25, 2015 at 08:24:25AM -0700, Nicolin Chen wrote:
> > On Mon, May 25, 2015 at 12:13:45PM -0300, Fabio Estevam wrote:
> > > Hi Nicolin,
> > >
> > > On Mon, May 25, 2015 at 12:11 PM, Nicolin Chen
> > > wrote:
> > >
> > > >
On Tue, 2015-05-26 at 13:57 +, David Laight wrote:
> From: Scott Wood ...
> > > I'd also have thought that the 64bit C version above would be
> > > generally 'good'.
> >
> > It doesn't generate the addc/addze sequence. At least with GCC
> > 4.8.2,
> > it does something like:
> >
> > mr
On Tue, 2015-05-26 at 01:33 -0500, Jia Hongtao-B38951 wrote:
> Hi Scott,
>
> Eduardo indicated that "calibration" property should add "fsl"
> prefix.
> I updated the patch.
> Any other comments?
> If not I will send V3 soon.
>
> Thanks.
I'd go with "fsl,tmu-calibration" rather than "fsl,calibra
On Wed, May 20, 2015 at 11:03:25AM +0200, Torsten Duwe wrote:
> On Tue, May 19, 2015 at 01:27:07PM +1000, Michael Ellerman wrote:
> > On Mon, 2015-05-18 at 14:29 +0200, Jiri Kosina wrote:
> > >
> > > ftrace already handles recursion protection by itself (depending on the
> > > per-ftrace-ops FTRA
From: Scott Wood ...
> > I'd also have thought that the 64bit C version above would be generally
> > 'good'.
>
> It doesn't generate the addc/addze sequence. At least with GCC 4.8.2,
> it does something like:
>
> mr tmp0, csum
> li tmp1, 0
> li tmp2, 0
> a
On 21 May 2015 at 10:43, Suman Tripathi wrote:
> The sdhci framework disables SDR104/SDR50/DDR50 based on only quirk.
> This patch adds the support to disable SDR104/SDR50/DDR50 based on
> reading the capability register 0.
>
> Signed-off-by: Suman Tripathi
> ---
> ---
> drivers/mmc/host/sdhci.c
Hi Laurentiu,
> > + if ((TRAP(regs) == 0xf00) && regs->result)
> > + return true;
> > +
> > + return false;
>
> Why not just
>
> return (TRAP(regs) == 0xf00) && regs->result;
Could do, it just read a little easier to my tired eyes.
Anton
__
Hi ,
On Thu, May 21, 2015 at 2:13 PM, Suman Tripathi wrote:
> This patch adds the arasan mmc nodes to reuse the of-arasan
> driver for APM X-Gene SoC.
>
> Signed-off-by: Suman Tripathi
> ---
> ---
> arch/arm64/boot/dts/apm/apm-mustang.dts | 4 +++
> arch/arm64/boot/dts/apm/apm-storm.dtsi | 4
On 05/26/2015 08:10 AM, Anton Blanchard wrote:
> When we take a PMU exception or a software event we call
> perf_read_regs(). This overloads regs->result with a boolean that
> describes if we should use the sampled instruction address register
> (SIAR) or the regs.
>
> If the exception is in kerne
On Thu, May 21, 2015 at 2:13 PM, Suman Tripathi wrote:
> The sdhci framework disables SDR104/SDR50/DDR50 based on only quirk.
> This patch adds the support to disable SDR104/SDR50/DDR50 based on
> reading the capability register 0.
>
> Signed-off-by: Suman Tripathi
> ---
> ---
> drivers/mmc/host
On Mon, May 25, 2015 at 08:24:25AM -0700, Nicolin Chen wrote:
> On Mon, May 25, 2015 at 12:13:45PM -0300, Fabio Estevam wrote:
> > Hi Nicolin,
> >
> > On Mon, May 25, 2015 at 12:11 PM, Nicolin Chen
> > wrote:
> >
> > > Hi Mark,
> > >
> > > Is that possible for you to provisionally revert this p
Since commit 100832abf065bc18 ("usb: isp1760: Make HCD support
optional"), CONFIG_USB_ISP1760_HCD is automatically selected when
needed. Enabling that option in the defconfig is now a no-op, and no
longer enables ISP1760 HCD support.
Re-enable the ISP1760 driver in the defconfig by enabling
USB_I
Hi,
I applied this patch ("check if DEQ was already instantiated") on top of
"sound: ppc: keywest: drop using attach adapter" and sound works great.
Everything works as expected. Below is my dmesg output.
Regards,
Dan
On Sat, 5/23/15, Wolfram Sang wrote:
> Due to changes in i2c-powermac, f
On 26.05.15 02:27, Sam Bobroff wrote:
> In 64 bit kernels, the Fixed Point Exception Register (XER) is a 64
> bit field (e.g. in kvm_regs and kvm_vcpu_arch) and in most places it is
> accessed as such.
>
> This patch corrects places where it is accessed as a 32 bit field by a
> 64 bit kernel. I
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