On Mon, Sep 15, 2014 at 08:31:20PM +0530, Sudip Mukherjee wrote:
> as pr_* macros are more preffered over printk, so printk replaced with
> corresponding pr_* macros
>
> Signed-off-by: Sudip Mukherjee
> ---
>
> The replacement was done by a bash script to avoid copy paste error. The
> script i
On Wed, 2014-10-01 at 15:25 +0530, Aneesh Kumar K.V wrote:
> Michael Neuling writes:
>
> > From: Ian Munsie
> >
> > The vsid calculation between hash_page() and copro_data_segment() are very
> > similar. This merges these two different versions.
> >
> > Signed-off-by: Ian Munsie
> > Signed-off
On Thu, 2014-10-02 at 13:16 +1000, Michael Ellerman wrote:
> On Tue, 2014-30-09 at 10:34:57 UTC, Michael Neuling wrote:
> > From: Ian Munsie
> >
> > This adds a number of functions for allocating IRQs under powernv PCIe for
> > cxl.
> >
> > diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c
On Tue, 2014-30-09 at 10:35:04 UTC, Michael Neuling wrote:
> From: Ian Munsie
>
> This defines structs and magic numbers required for userspace to interact with
> the kernel cxl driver via /dev/cxl/afu0.0.
>
> diff --git a/include/uapi/misc/cxl.h b/include/uapi/misc/cxl.h
> new file mode 100644
Unroll clear_page 8 times. A simple microbenchmark which
allocates and frees a zeroed page:
for (i = 0; i < iterations; i++) {
unsigned long p = __get_free_page(GFP_KERNEL | __GFP_ZERO);
free_page(p);
}
improves 20% on POWER8.
This assumes cacheline sizes won't grow beyond 512 by
On Thu, 2014-10-02 at 11:57 +1000, Michael Ellerman wrote:
> On Tue, 2014-30-09 at 10:34:55 UTC, Michael Neuling wrote:
> > From: Ian Munsie
> >
> > Some of the MSI IRQ code in pnv_pci_ioda_msi_setup() is generically useful
> > so
> > split it out.
> >
> > This will be used by some of the cxl P
On Tue, 2014-30-09 at 10:34:58 UTC, Michael Neuling wrote:
> From: Ian Munsie
>
> This adds a new function hash_page_mm() based on the existing hash_page().
> This version allows any struct mm to be passed in, rather than assuming
> current. This is useful for servicing co-processor faults which
On Wed, 2014-10-01 at 22:00 +1000, Michael Ellerman wrote:
> On Tue, 2014-30-09 at 10:35:02 UTC, Michael Neuling wrote:
> > This also adds the cxl_ctx_in_use() function for use in the mm code to see
> > if
> > any cxl contexts are currently in use. This is used by the tlbie() to
> > determine if
On Wed, 2014-10-01 at 22:00 +1000, Michael Ellerman wrote:
> On Tue, 2014-30-09 at 10:34:56 UTC, Michael Neuling wrote:
> > From: Ian Munsie
> >
> > This new header add defines for callbacks and structs needed by the rest of
> > the
> adds
> > kernel to hook into the cxl infras
On Tue, 2014-30-09 at 10:34:57 UTC, Michael Neuling wrote:
> From: Ian Munsie
>
> This adds a number of functions for allocating IRQs under powernv PCIe for
> cxl.
>
> diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c
> b/arch/powerpc/platforms/powernv/pci-ioda.c
> index 329164f..b0b96f0
On Wed, 2014-10-01 at 17:13 +1000, Michael Ellerman wrote:
> On Tue, 2014-30-09 at 10:34:54 UTC, Michael Neuling wrote:
> > From: Ian Munsie
>
> Mind explaining why ? :)
Sure.
Mikey
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On 10/01/2014 04:44 PM, Alexander Graf wrote:
On 02.10.14 01:28, Scott Wood wrote:
On Thu, 2014-10-02 at 01:21 +0200, Alexander Graf wrote:
On 02.10.14 00:39, Scott Wood wrote:
On Wed, 2014-10-01 at 15:27 +0200, Alexander Graf wrote:
The generic Linux framework to power off the machine is
On 10/01/2014 02:25 PM, Alexander Graf wrote:
On 01.10.14 17:54, Guenter Roeck wrote:
On Wed, Oct 01, 2014 at 04:47:23PM +0200, Alexander Graf wrote:
On 01.10.14 16:33, Geert Uytterhoeven wrote:
Hi Alex,
On Wed, Oct 1, 2014 at 3:27 PM, Alexander Graf wrote:
The generic Linux framework t
On Wed, Oct 1, 2014 at 8:33 PM, Benjamin Herrenschmidt
wrote:
> A number of radeon cards have a HW limitation causing them to be
> unable to generate the full 64-bit of address bits for MSIs. This
> breaks MSIs on some platforms such as POWER machines.
>
> We used to have a powerpc specific quirk
On Wed, Oct 1, 2014 at 8:34 PM, Benjamin Herrenschmidt
wrote:
>
> AMD/ATI HDMI controller chip models, we already have a filter to lower
> to 32bit DMA, but the rest are supposed to be working with 64bit
> although the hardware doesn't really work with 63bit but only with 40
> or 48bit DMA. In th
On Wed, Oct 1, 2014 at 8:34 PM, Benjamin Herrenschmidt
wrote:
>
> A number of radeon cards have a HW limitation causing them to be
> unable to generate the full 64-bit of address bits for MSIs. This
> breaks MSIs on some platforms such as POWER machines.
>
> We used to have a powerpc specific quir
On Wed, 2014-10-01 at 17:13 +1000, Michael Ellerman wrote:
> On Tue, 2014-30-09 at 10:34:53 UTC, Michael Neuling wrote:
> > From: Ian Munsie
> >
> > Currently msi_bitmap_alloc_hwirqs() will round up any IRQ allocation
> > requests
>
On Tue, 2014-30-09 at 10:34:55 UTC, Michael Neuling wrote:
> From: Ian Munsie
>
> Some of the MSI IRQ code in pnv_pci_ioda_msi_setup() is generically useful so
> split it out.
>
> This will be used by some of the cxl PCIe code later.
>
> diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c
>
Hi Ben,
On Thu, 02 Oct 2014 10:34:42 +1000 Benjamin Herrenschmidt
wrote:
>
> diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
> index aa302fb..f91ba7f 100644
> --- a/sound/pci/hda/hda_intel.c
> +++ b/sound/pci/hda/hda_intel.c
> @@ -296,7 +296,8 @@ enum {
>
> /* quirks for AT
Hi Ben,
On Thu, 02 Oct 2014 10:34:22 +1000 Benjamin Herrenschmidt
wrote:
>
> --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
> +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
> @@ -202,6 +202,16 @@ static bool radeon_msi_ok(struct radeon_device *rdev)
> if (rdev->flags & RADEON_IS_AGP)
>
Hi Ben,
On Thu, 02 Oct 2014 10:33:32 +1000 Benjamin Herrenschmidt
wrote:
>
> --- a/arch/powerpc/kernel/pci_64.c
> +++ b/arch/powerpc/kernel/pci_64.c
> @@ -269,10 +269,7 @@ EXPORT_SYMBOL(pcibus_to_node);
>
> static void quirk_radeon_32bit_msi(struct pci_dev *dev)
> {
> - struct pci_dn *pd
On Wed, Oct 1, 2014 at 6:08 PM, Benjamin Herrenschmidt
wrote:
> On Wed, 2014-10-01 at 13:58 -0400, Alex Deucher wrote:
>> Patch looks good. Audio DMAs are limited to 40 bits, same as the GPU
>> side. I'm still waiting to hear back on the MSIs for audio, but they
>> probably follow the GPU side,
Some devices have broken 64-bit MSI support which only support some
address bits (40 to 48 typically). This doesn't work on some platforms
such as POWER servers, so we need a quirk.
Currently we keep a flag in a powerpc specific data structure which we
have per PCI device. However this is impract
A number of radeon cards have a HW limitation causing them to be
unable to generate the full 64-bit of address bits for MSIs. This
breaks MSIs on some platforms such as POWER machines.
We used to have a powerpc specific quirk to address that on a
single card, but this doesn't scale very well, thi
A number of radeon cards have a HW limitation causing them to be
unable to generate the full 64-bit of address bits for MSIs. This
breaks MSIs on some platforms such as POWER machines.
We used to have a powerpc specific quirk to address that on a
single card, but this doesn't scale very well, thi
AMD/ATI HDMI controller chip models, we already have a filter to lower
to 32bit DMA, but the rest are supposed to be working with 64bit
although the hardware doesn't really work with 63bit but only with 40
or 48bit DMA. In this patch, we take 40bit DMA for safety for the
AMD/ATI controllers as th
On Wed, 2014-10-01 at 15:23 +0530, Aneesh Kumar K.V wrote:
> Michael Neuling writes:
>
> > From: Ian Munsie
> >
> > __spu_trap_data_seg() currently contains code to determine the VSID and ESID
> > required for a particular EA and mm struct.
> >
> > This code is generically useful for other co-pr
On Wed, 2014-10-01 at 16:47 +1000, Michael Ellerman wrote:
> On Tue, 2014-30-09 at 10:34:51 UTC, Michael Neuling wrote:
> > From: Ian Munsie
> >
> > __spu_trap_data_seg() currently contains code to determine the VSID and ESID
> > required for a particular EA and mm struct.
> >
> > This code is g
A number of radeon cards have a HW limitation causing them to be
unable to generate the full 64-bit of address bits for MSIs. This
breaks MSIs on some platforms such as POWER machines.
We used to have a powerpc specific quirk to address that on a
single card, but this doesn't scale very well, this
Some devices have broken 64-bit MSI support which only support some
address bits (40 to 48 typically). This doesn't work on some platforms
such as POWER servers, so we need a quirk.
Currently we keep a flag in a powerpc specific data structure which we
have per PCI device. However this is impracti
On Thu, 2014-10-02 at 08:08 +1000, Benjamin Herrenschmidt wrote:
> On Wed, 2014-10-01 at 13:58 -0400, Alex Deucher wrote:
> > Patch looks good. Audio DMAs are limited to 40 bits, same as the GPU
> > side. I'm still waiting to hear back on the MSIs for audio, but they
> > probably follow the GPU s
On 02.10.14 01:28, Scott Wood wrote:
> On Thu, 2014-10-02 at 01:21 +0200, Alexander Graf wrote:
>>
>> On 02.10.14 00:39, Scott Wood wrote:
>>> On Wed, 2014-10-01 at 15:27 +0200, Alexander Graf wrote:
The generic Linux framework to power off the machine is a function pointer
called pm_po
On Thu, 2014-10-02 at 01:21 +0200, Alexander Graf wrote:
>
> On 02.10.14 00:39, Scott Wood wrote:
> > On Wed, 2014-10-01 at 15:27 +0200, Alexander Graf wrote:
> >> The generic Linux framework to power off the machine is a function pointer
> >> called pm_power_off. The trick about this pointer is t
On 02.10.14 00:39, Scott Wood wrote:
> On Wed, 2014-10-01 at 15:27 +0200, Alexander Graf wrote:
>> The generic Linux framework to power off the machine is a function pointer
>> called pm_power_off. The trick about this pointer is that device drivers can
>> potentially implement it rather than boa
On Wed, 2014-10-01 at 15:27 +0200, Alexander Graf wrote:
> The generic Linux framework to power off the machine is a function pointer
> called pm_power_off. The trick about this pointer is that device drivers can
> potentially implement it rather than board files.
>
> Today on PowerPC we set pm_po
On Wed, 2014-10-01 at 14:33 -0600, Bjorn Helgaas wrote:
> I like the idea of handling this more generically, e.g., with a bit like
> this in struct pci_dev (I'd probably name it something like "no_64bit_msi"
> along the lines of your driver #defines).
>
> What I don't like is that we haven't done
On Wed, 2014-10-01 at 13:58 -0400, Alex Deucher wrote:
> Patch looks good. Audio DMAs are limited to 40 bits, same as the GPU
> side. I'm still waiting to hear back on the MSIs for audio, but they
> probably follow the GPU side, so I expect they should be fixed on Sea
> Islands as well.
In the a
On 01.10.14 17:54, Guenter Roeck wrote:
> On Wed, Oct 01, 2014 at 04:47:23PM +0200, Alexander Graf wrote:
>>
>>
>> On 01.10.14 16:33, Geert Uytterhoeven wrote:
>>> Hi Alex,
>>>
>>> On Wed, Oct 1, 2014 at 3:27 PM, Alexander Graf wrote:
The generic Linux framework to power off the machine is
On Wed, Oct 01, 2014 at 12:09:23PM +1000, Benjamin Herrenschmidt wrote:
>
> Some devices have broken 64-bit MSI support which only support some
> address bits (40 to 48 typically). This doesn't work on some platforms
> such as POWER servers, so we need a quirk.
>
> Currently we keep a flag in a p
On Wednesday, October 01, 2014 01:15:57 PM Shreyas B. Prabhu wrote:
> Fast sleep is an idle state, where the core and the L1 and L2
> caches are brought down to a threshold voltage. This also means that
> the communication between L2 and L3 caches have to be fenced. However
> the current P8 chips h
On Tue, Sep 30, 2014 at 10:09 PM, Benjamin Herrenschmidt
wrote:
> A number of radeon cards have a HW limitation causing them to be
> unable to generate the full 64-bit of address bits for MSIs. This
> breaks MSIs on some platforms such as POWER machines.
>
> We used to have a powerpc specific quir
On Wed, Oct 1, 2014 at 4:30 AM, Takashi Iwai wrote:
> At Wed, 01 Oct 2014 10:09:28 +0200,
> Takashi Iwai wrote:
>>
>> At Wed, 01 Oct 2014 17:41:29 +1000,
>> Benjamin Herrenschmidt wrote:
>> >
>> > On Wed, 2014-10-01 at 09:38 +0200, Takashi Iwai wrote:
>> >
>> > > > diff --git a/sound/pci/hda/hda_i
On Wed, Oct 01, 2014 at 11:06:27AM +0200, Jiri Olsa wrote:
> On Thu, Sep 25, 2014 at 07:25:20PM -0700, Sukadev Bhattiprolu wrote:
> > Jiri Olsa [jo...@redhat.com] wrote:
> > | On Wed, Sep 24, 2014 at 12:27:15PM -0700, Sukadev Bhattiprolu wrote:
> > | > From: Cody P Schafer
> > | >
> > | > Enable
On Wed, Oct 01, 2014 at 04:47:23PM +0200, Alexander Graf wrote:
>
>
> On 01.10.14 16:33, Geert Uytterhoeven wrote:
> > Hi Alex,
> >
> > On Wed, Oct 1, 2014 at 3:27 PM, Alexander Graf wrote:
> >> The generic Linux framework to power off the machine is a function pointer
> >> called pm_power_off.
On Wed, Oct 1, 2014 at 4:47 PM, Alexander Graf wrote:
>> This is touching the same area as last night's
>> "[RFC PATCH 00/16] kernel: Add support for poweroff handler call chain"
>> https://lkml.org/lkml/2014/9/30/575
>
> I agree, and I think your patch set is walking into a reasonable
> direction
On 01.10.14 16:33, Geert Uytterhoeven wrote:
> Hi Alex,
>
> On Wed, Oct 1, 2014 at 3:27 PM, Alexander Graf wrote:
>> The generic Linux framework to power off the machine is a function pointer
>> called pm_power_off. The trick about this pointer is that device drivers can
>> potentially implemen
Hi Alex,
On Wed, Oct 1, 2014 at 3:27 PM, Alexander Graf wrote:
> The generic Linux framework to power off the machine is a function pointer
> called pm_power_off. The trick about this pointer is that device drivers can
> potentially implement it rather than board files.
>
> Today on PowerPC we se
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/pseries/setup.c | 59 +-
1 file changed, 30 insertions(+), 29 deletions(-)
diff --git a/arch/p
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/powermac/setup.c | 147
1 file changed, 74 insertions(+), 73 deletions(-)
diff --git a/arch/p
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/cell/setup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/cell/setup.c
b/arch/po
Now that we have all implementations of ppc_md.power_off converted to
pm_power_off we can remove the ppc_md variant.
While at it, also set the default for pm_power_off to NULL so that non
machine drivers can implement overrides.
Signed-off-by: Alexander Graf
---
arch/powerpc/include/asm/machdep
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/embedded6xx/gamecube.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/embedded6xx
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/embedded6xx/wii.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/embedded6xx/wii.
The generic Linux framework to power off the machine is a function pointer
called pm_power_off. The trick about this pointer is that device drivers can
potentially implement it rather than board files.
Today on PowerPC we set pm_power_off to invoke our generic full machine power
off logic which th
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/ps3/setup.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/ps3/setup.c
b/arch/po
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/maple/setup.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/maple/setup.c
b/a
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/powernv/setup.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/setup.c
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/chrp/setup.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/chrp/setup.c
b/arch/
The pm_power_off callback is what drivers are supposed to modify when they
implement power off support for the system.
Support a modified callback on powerpc. That way power off support code can
now either override ppc_md.power_off or pm_power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/cell/qpace_setup.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/cell/qpace_setu
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/85xx/corenet_generic.c | 2 +-
arch/powerpc/sysdev/fsl_soc.c | 2 +-
2 files changed, 2 insertions(+), 2 deleti
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/embedded6xx/linkstation.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/embedded
Xmon can manually turn off the machine. We now have 2 code paths for this:
1) ppc_md.power_off
2) pm_power_off
This patch allows xmon to support both and makes sure it graciously allows
a path to not be implemented.
Signed-off-by: Alexander Graf
---
arch/powerpc/xmon/xmon.c | 5 -
1 fi
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/44x/ppc476.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/44x/ppc476.c
b/arch/po
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/52xx/efika.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/52xx/efika.c
b/arch/
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/cell/celleb_setup.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/cell/celleb_
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/85xx/sgy_cts1000.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/85xx/sgy_cts1
The generic power off callback is pm_power_off. Use that one rather than
the powerpc specific ppc_md.power_off.
Signed-off-by: Alexander Graf
---
arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/platforms/83xx
On Tue, 2014-30-09 at 10:35:02 UTC, Michael Neuling wrote:
> This also adds the cxl_ctx_in_use() function for use in the mm code to see if
> any cxl contexts are currently in use. This is used by the tlbie() to
> determine if it can do local TLB invalidations or not. This also adds get/put
> call
On Tue, 2014-30-09 at 10:34:56 UTC, Michael Neuling wrote:
> From: Ian Munsie
>
> This new header add defines for callbacks and structs needed by the rest of
> the
adds
> kernel to hook into the cxl infrastructure.
>
> Empty functions are provided when CONFIG CXL_BASE is not e
On Wed, 2014-10-01 at 15:15 +0530, Aneesh Kumar K.V wrote:
> Michael Neuling writes:
>
> > From: Ian Munsie
> >
> > __spu_trap_data_seg() currently contains code to determine the VSID and ESID
> > required for a particular EA and mm struct.
> >
> > This code is generically useful for other co-pr
On Wed, 2014-10-01 at 17:13 +1000, Michael Ellerman wrote:
> On Tue, 2014-30-09 at 10:34:52 UTC, Michael Neuling wrote:
> > diff --git a/arch/powerpc/include/asm/copro.h
> > b/arch/powerpc/include/asm/copro.h
> > index 2858108..f3d338f 100644
> > --- a/arch/powerpc/include/asm/copro.h
> > +++ b/ar
Michael Neuling writes:
> From: Ian Munsie
>
> The vsid calculation between hash_page() and copro_data_segment() are very
> similar. This merges these two different versions.
>
> Signed-off-by: Ian Munsie
> Signed-off-by: Michael Neuling
> ---
> arch/powerpc/include/asm/mmu-hash64.h | 2 ++
Michael Neuling writes:
> From: Ian Munsie
>
> __spu_trap_data_seg() currently contains code to determine the VSID and ESID
> required for a particular EA and mm struct.
>
> This code is generically useful for other co-processors. This moves the code
> of the cell platform so it can be used by
Michael Neuling writes:
> From: Ian Munsie
>
> __spu_trap_data_seg() currently contains code to determine the VSID and ESID
> required for a particular EA and mm struct.
>
> This code is generically useful for other co-processors. This moves the code
> of the cell platform so it can be used by
Michael Neuling writes:
> From: Ian Munsie
>
> This adds a new function hash_page_mm() based on the existing hash_page().
> This version allows any struct mm to be passed in, rather than assuming
> current. This is useful for servicing co-processor faults which are not in
> the
> context of th
On Thu, Sep 25, 2014 at 07:25:20PM -0700, Sukadev Bhattiprolu wrote:
> Jiri Olsa [jo...@redhat.com] wrote:
> | On Wed, Sep 24, 2014 at 12:27:15PM -0700, Sukadev Bhattiprolu wrote:
> | > From: Cody P Schafer
> | >
> | > Enable event specification like:
> | >
> | > pmu/event_name,param1=0x1,para
At Wed, 01 Oct 2014 10:09:28 +0200,
Takashi Iwai wrote:
>
> At Wed, 01 Oct 2014 17:41:29 +1000,
> Benjamin Herrenschmidt wrote:
> >
> > On Wed, 2014-10-01 at 09:38 +0200, Takashi Iwai wrote:
> >
> > > > diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
> > > > index 3e6d22d..2b6
At Wed, 01 Oct 2014 17:41:29 +1000,
Benjamin Herrenschmidt wrote:
>
> On Wed, 2014-10-01 at 09:38 +0200, Takashi Iwai wrote:
>
> > > diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
> > > index 3e6d22d..2b679d5 100644
> > > --- a/sound/pci/hda/hda_intel.c
> > > +++ b/sound/pci/h
On Wed, 2014-10-01 at 17:41 +1000, Benjamin Herrenschmidt wrote:
> I don't like that approach because technically the chip doesn't do
> 64-bit DMA ... it does something like 40 or 48 (might actually depend on
> the chip version) and for all I know it will break on future x86 with
> more memory or
Enter winkle during offline if supported, else revert to sleep or nap.
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Michael Ellerman
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Shreyas B. Prabhu
---
arch/powerpc/platforms/powernv/smp.c | 6 --
1 file changed, 4 insertions(+), 2
Discover winkle from device tree. If supported make OPAL calls
necessary to save HIDs, HMEER, HSPRG0 and LPCR.
Also make OPAL call when the HID0 value is modified during
split/unsplit of cores.
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Michael Ellerman
Cc: linuxppc-dev@lists.ozlabs.org
Winkle causes power to be gated off to the entire chiplet. Hence the
hypervisor/firmware state in the entire chiplet is lost.
This patch adds necessary infrastructure to support waking up from
hypervisor state loss. Specifically does following:
- Before entering winkle, save state of registers tha
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Michael Ellerman
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Shreyas B. Prabhu
---
arch/powerpc/include/asm/reg.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 0c0
PORE can be programmed to restore hypervisor registers when waking up
from deep cpu idle states like winkle.
Add call to pass SPR address and value to OPAL, which in turn will
program PORE to restore the register state.
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Benjamin Herrenschmidt
Cc: Paul Macker
Powernv already has support for nap and sleep and these states are used
by cpuidle framework. This patchset adds support for 'deep winkle' a
deeper idle state.
In deep winkle, entire chiplet (core/L2/L3) is power off, leading to
higher power savings. But this results in hypervisor state loss. T
From: Preeti U Murthy
Fast sleep is an idle state, where the core and the L1 and L2
caches are brought down to a threshold voltage. This also means that
the communication between L2 and L3 caches have to be fenced. However
the current P8 chips have a bug wherein this fencing between L2 and
L3 cac
When guests have to be launched, the secondary threads which are offline
are woken up to run the guests. Today these threads wake up from nap
and check if they have to run guests. Now that the offline secondary
threads can go to fastsleep or going ahead a deeper idle state such as winkle,
add this
From: "Srivatsa S. Bhat"
The offline cpus should enter deep idle states so as to gain maximum
powersavings when the entire core is offline. To do so the offline path
must be made aware of the available deepest idle state. Hence probe the
device tree for the possible idle states in powernv core co
Fast sleep is an idle state, where the core and the L1 and L2
caches are brought down to a threshold voltage. This also means that
the communication between L2 and L3 caches have to be fenced. However
the current P8 chips have a bug wherein this fencing between L2 and
L3 caches get delayed by a cpu
From: Preeti U Murthy
We hard code the metrics relevant for cpuidle states in the kernel today.
Instead pick them up from the device tree so that they remain relevant
and updated for the system that the kernel is running on.
Cc: linux...@vger.kernel.org
Cc: Rafael J. Wysocki
Cc: Rob Herring
Cc
On Wed, 2014-10-01 at 09:38 +0200, Takashi Iwai wrote:
> > diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
> > index 3e6d22d..2b679d5 100644
> > --- a/sound/pci/hda/hda_intel.c
> > +++ b/sound/pci/hda/hda_intel.c
> > @@ -297,7 +297,7 @@ enum {
> > /* quirks for ATI/AMD HDMI */
At Wed, 01 Oct 2014 12:09:53 +1000,
Benjamin Herrenschmidt wrote:
>
> The chipset has a limitation in the number of address bits it
> can generate. The graphics portion uses a specific mask of
> 40 or 48 bits depending on the generation. For audio, it's a bit
> less of an issue, so just mark them
On Tue, 2014-30-09 at 10:34:54 UTC, Michael Neuling wrote:
> From: Ian Munsie
Mind explaining why ? :)
cheers
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On Tue, 2014-30-09 at 10:34:53 UTC, Michael Neuling wrote:
> From: Ian Munsie
>
> Currently msi_bitmap_alloc_hwirqs() will round up any IRQ allocation requests
request
> to the nearest power of 2. eg. ask for 5 IRQs and you'l
On Wed, Oct 01, 2014 at 05:07:48PM +1000, Gavin Shan wrote:
>When EEH errors are detected on some particular PCI adapters, one of
>which is shown as follows, the PCI config space of thoese PCI adapters
>(PE) should be blocked. Otherwise, we will run into fenced PHB when
>collecting EEH logs (part o
On Tue, 2014-30-09 at 10:34:52 UTC, Michael Neuling wrote:
> diff --git a/arch/powerpc/include/asm/copro.h
> b/arch/powerpc/include/asm/copro.h
> index 2858108..f3d338f 100644
> --- a/arch/powerpc/include/asm/copro.h
> +++ b/arch/powerpc/include/asm/copro.h
> @@ -15,4 +15,10 @@ int copro_handle_mm
Michael points out that __get_SP() is a pretty horrible
function name. Let's give it a better name.
Signed-off-by: Anton Blanchard
---
arch/powerpc/include/asm/perf_event.h | 2 +-
arch/powerpc/include/asm/reg.h| 2 +-
arch/powerpc/kernel/irq.c | 2 +-
arch/powerpc/kernel/mis
The flag EEH_PE_RESET indicates blocking config space of the PE
during reset time. We potentially need block PE's config space
other than reset time. So it's reasonable to replace it with
EEH_PE_CFG_BLOCKED to indicate its usage.
There are no substantial code or logic changes in this patch.
Signe
Function eeh_pe_state_mark() could possibly have combination of
multiple EEH PE state as its argument. The patch fixes the condition
used to check if EEH_PE_ISOLATED is included.
Signed-off-by: Gavin Shan
---
arch/powerpc/kernel/eeh_pe.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
dif
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