Re: [PATCH v12 4/6] QE/CPM: move muram management functions to qe_common

On Tue, 2015-10-27 at 02:34 -0500, Zhao Qiang-B45475 wrote: > On Tue, Oct 27, 2015 at 2:50 PM, Wood Scott-B07421 wrote: > > -Original Message- > > From: Wood Scott-B07421 > > Sent: Tuesday, October 27, 2015 2:50 PM > > To: Zhao Qiang-B45475 > > Cc:

RE: [PATCH v12 4/6] QE/CPM: move muram management functions to qe_common

On Tue, Oct 27, 2015 at 2:50 PM, Wood Scott-B07421 wrote: > -Original Message- > From: Wood Scott-B07421 > Sent: Tuesday, October 27, 2015 2:50 PM > To: Zhao Qiang-B45475 > Cc: linux-ker...@vger.kernel.org; linuxppc-dev@lists.ozlabs.org; > lau...@codeaurora.org;

RE: [PATCH v12 4/6] QE/CPM: move muram management functions to qe_common

On Tue, Oct 27, 2015 at 12:48 PM, Wood Scott-B07421 wrote: > -Original Message- > From: Wood Scott-B07421 > Sent: Tuesday, October 27, 2015 12:48 PM > To: Zhao Qiang-B45475 > Cc: linux-ker...@vger.kernel.org; linuxppc-dev@lists.ozlabs.org; >

Re: [PATCH v12 4/6] QE/CPM: move muram management functions to qe_common

On Tue, 2015-10-27 at 01:24 -0500, Zhao Qiang-B45475 wrote: > On Tue, Oct 27, 2015 at 12:48 PM, Wood Scott-B07421 wrote: > > -Original Message- > > From: Wood Scott-B07421 > > Sent: Tuesday, October 27, 2015 12:48 PM > > To: Zhao Qiang-B45475 > > Cc:

Re: [PATCH] powerpc/pseries: Correct string length in pseries_of_derive_parent()

On Mon, 2015-10-26 at 14:33 -0500, Nathan Fontenot wrote: > Commit a030e1e4bbd085bbcfd0a23f8d355fcd41f39bed made a change to use > kstrndup() instead of kmalloc() + strlcpy() in > pseries_of_derive_parent() > which introduces a subtle change in the parent path name generated. > The kstrndup()

[PATCH] powerpc/85xx: Enable TWR_P102x option by default in mpc85xx_smp_defconfig

Enable TWR_P102x option by default in mpc85xx_smp_defconfig to support p1025twr board. Signed-off-by: Pengbo Li --- arch/powerpc/configs/mpc85xx_basic_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/configs/mpc85xx_basic_defconfig

[PATCH] powerpc/dma: dma_set_coherent_mask() should not be GPL only

When turning this from inline to an exported function I was a bit over-eager and made it GPL only. This prevents the use of pretty much all non-GPL PCI driver which is a bit over the top. Let's bring it back in line with other architecture. Signed-off-by: Benjamin Herrenschmidt

Re: [PATCH 2/7 v2] powerpc/dma-mapping: override dma_get_page_shift

On 10/24/2015 07:57 AM, Nishanth Aravamudan wrote: On Power, the kernel's page size can differ from the IOMMU's page size, so we need to override the generic implementation, which always returns the kernel's page size. Lookup the IOMMU's page size from struct iommu_table, if available. Fallback

Re: Re: [PATCH v3 0/8] ftrace with regs + live patching for ppc64 LE (ABI v2)

Hi Torsten, [auto build test ERROR on powerpc/next -- if it's inappropriate base, please suggest rules for selecting the more suitable base] url: https://github.com/0day-ci/linux/commits/Torsten-Duwe/Re-PATCH-v3-0-8-ftrace-with-regs-live-patching-for-ppc64-LE-ABI-v2/20151027-020058 config

[PATCH v2] powerpc/pseries: Correct string length in pseries_of_derive_parent()

Commit a030e1e4bbd085bbcfd0a23f8d355fcd41f39bed make a change to use kstrndup() instead of kmalloc() + strlcpy() in the pseries_of_derive_parent() routine that introduces a subtle change in the parent path name generated. The kstrndup() routine will copy n characters followed by a terminating

Re: [v2 03/11] soc/fsl: Introduce the DPAA BMan portal driver

Hello, sorry for the message format, but I don't have the original e-mail. [...] diff --git a/drivers/soc/fsl/qbman/bman.h b/drivers/soc/fsl/qbman/bman.h new file mode 100644 index 000..c987938 --- /dev/null +++ b/drivers/soc/fsl/qbman/bman.h @@ -0,0 +1,542 @@ +/* Copyright 2008 - 2015

Re: [PATCH v2] powerpc/pseries: Correct string length in pseries_of_derive_parent()

On Tue, 2015-10-27 at 10:46 -0500, Nathan Fontenot wrote: > Commit a030e1e4bbd085bbcfd0a23f8d355fcd41f39bed make a change to use > kstrndup() instead of kmalloc() + strlcpy() in the > pseries_of_derive_parent() > routine that introduces a subtle change in the parent path name > generated. > The

RE: [V5, 2/6] fsl/fman: Add FMan support

Regards, Igal Liberman > -Original Message- > From: Wood Scott-B07421 > Sent: Saturday, September 26, 2015 2:02 AM > To: Liberman Igal-B31950 > Cc: net...@vger.kernel.org; linuxppc-dev@lists.ozlabs.org; linux- > ker...@vger.kernel.org; Bucur

[PATCH v2] powerpc/mm: Add page soft dirty tracking

User space checkpoint and restart tool (CRIU) needs the page's change to be soft tracked. This allows to do a pre checkpoint and then dump only touched pages. This is done by using a newly assigned PTE bit (_PAGE_SOFT_DIRTY) when the page is backed in memory, and a new _PAGE_SWP_SOFT_DIRTY bit

[PATCH v2 2/6] powerpc/pseries: Factor out common cpu hotplug code

Re-factor the cpu hotplug code to support doing cpu hotplug completely in the kernel and using the existing sysfs probe/release interfaces. This patch pulls out pieces of existing cpu hotplug code into common routines, dlpar_cpu_add() and dlpar_cpu_remove(), to be used by both interfaces. There

[PATCH v2 5/6] powerpc/pseries: Add CPU dlpar add functionality

Add the ability to hotplug add cpus via rtas hotplug events by either specifying the drc index of the CPU to add, or providing a count of the number of CPUs to add. Signed-off-by: Nathan Fontenot --- arch/powerpc/platforms/pseries/hotplug-cpu.c | 94

[PATCH v2 6/6] powerpc/pseries: Enable kernel CPU dlpar from sysfs

Enable new kernel cpu hotplug functionality by allowing cpu dlpar requests to be initiated from sysfs. Signed-off-by: Nathan Fontenot --- arch/powerpc/platforms/pseries/dlpar.c |6 ++ 1 file changed, 6 insertions(+) diff --git

[PATCH v2 3/6] powerpc/pseries: Update CPU hotplug error recovery

Update the cpu dlpar add/remove paths to do better error recovery when a failure occurs during the add/remove operation. Signed-off-by: Nathan Fontenot --- Updates for v2: - Corrected some pr_* statements moving pr_info to pr_debug staements and pr_debug to pr_warn

[PATCH v2 1/6] powerpc/pseries: Consolidate CPU hotplug code to hotplug-cpu.c

No functional changes, this patch is simply a move of the cpu hotplug code from pseries/dlpar.c to pseries/hotplug-cpu.c. This is in an effort to consolidate all of the cpu hotplug code in a common place. Signed-off-by: Nathan Fontenot ---

[PATCH v2 0/6] powerpc/pseries: Move CPU DLPAR into the kernel

To better support CPU hotplug in PowerKVM and PowerVM environments, the handling of CPU dlpar should be done entirely in the kernel. This will allow a common entry point to be used for PowerVM and PowerKVM CPU dlpar requests. For both environments the entry point is the same one introduced in a

[PATCH v2 4/6] powerpc/pseries: Add CPU dlpar remove functionality

Add the ability to dlpar remove CPUs via hotplug rtas events, either by specifying the drc-index of the CPU to remove or providing a count of cpus to remove. To remove multiple cpus in a single request we create a list of possible DR (Dynamic Reconfiguration) cpus and their drc indexes that can

[PATCH v8 59/61] PCI: Introduce resource_disabled()

Current is using !flags, and we are going to use IORESOURCE_DISABLED instead of clearing resource flags. Let's convert all !flags to helper function resource_disabled(). resource_disabled will check !flags and IORESOURCE_DISABLED both. Cc: linux-al...@vger.kernel.org Cc:

Re: [PATCH v4 0/2] powerpc/512x: add LocalPlus Bus FIFO device driver

On 27.10.2015 05:22, Vinod Koul wrote: > On Thu, Oct 22, 2015 at 01:15:03AM +0300, Alexander Popov wrote: >> On 12.10.2015 00:08, Alexander Popov wrote: >>> This driver for Freescale MPC512x LocalPlus Bus FIFO (called SCLPC >>> in the Reference Manual) allows Direct Memory Access transfers >>>

[PATCH v8 10/61] powerpc/PCI: Add IORESOURCE_MEM_64 for 64-bit resource in OF parsing

For device resource PREF bit setting under bridge 64-bit pref resource, we need to make sure only set PREF for 64bit resource, so set IORESOUCE_MEM_64 for 64bit resource during of device resource flags parsing. Link: https://bugzilla.kernel.org/show_bug.cgi?id=96261 Link:

Re: [PATCH 0/5 v3] Fix NVMe driver support on Power with 32-bit DMA

On 26.10.2015 [18:27:46 -0700], David Miller wrote: > From: Nishanth Aravamudan > Date: Fri, 23 Oct 2015 13:54:20 -0700 > > > 1) add a generic dma_get_page_shift implementation that just returns > > PAGE_SHIFT > > I won't object to this patch series, but if I had

Re: [PATCH 0/5 v3] Fix NVMe driver support on Power with 32-bit DMA

Hi Nishanth, On Wed, Oct 28, 2015 at 9:20 AM, Nishanth Aravamudan wrote: > On 26.10.2015 [18:27:46 -0700], David Miller wrote: >> From: Nishanth Aravamudan >> Date: Fri, 23 Oct 2015 13:54:20 -0700 >> >> > 1) add a generic dma_get_page_shift

Re: [PATCH V10 03/12] powerpc/pci: Cache VF index in pci_dn

Hi, > > diff --git a/arch/powerpc/include/asm/pci-bridge.h > b/arch/powerpc/include/asm/pci-bridge.h > index b3a226b..3d7e537 100644 > --- a/arch/powerpc/include/asm/pci-bridge.h > +++ b/arch/powerpc/include/asm/pci-bridge.h > @@ -210,6 +210,7 @@ struct pci_dn { > #define IODA_INVALID_PE

Re: [PATCH 4/7 v2] pseries/iommu: implement DDW-aware dma_get_page_shift

On 27.10.2015 [16:56:10 +1100], Alexey Kardashevskiy wrote: > On 10/24/2015 07:59 AM, Nishanth Aravamudan wrote: > >When DDW (Dynamic DMA Windows) are present for a device, we have stored > >the TCE (Translation Control Entry) size in a special device tree > >property. Check if we have enabled DDW

Re: [PATCH 2/7 v2] powerpc/dma-mapping: override dma_get_page_shift

On 27.10.2015 [17:02:16 +1100], Alexey Kardashevskiy wrote: > On 10/24/2015 07:57 AM, Nishanth Aravamudan wrote: > >On Power, the kernel's page size can differ from the IOMMU's page size, > >so we need to override the generic implementation, which always returns > >the kernel's page size. Lookup

[PATCH v8 52/61] PCI: Unify skip_ioresource_align()

There are powerpc generic version and x86 local version for skip_ioresource_align(). Move the powerpc version to setup-bus.c, and kill x86 local version. Also kill dummy version in microblaze. Cc: Michal Simek Cc: Paul Mackerras Cc: Michael Ellerman

Re: [PATCH v6 00/37] cxlflash: Miscellaneous bug fixes and corrections

Hi James, This series has been reviewed/acked. Is there anything else you're looking for before this can make it into -next? -matt > On Oct 21, 2015, at 3:08 PM, Matthew R. Ochs > wrote: > > This patch set contains various fixes and corrections for issues that >

Re: [PATCH 0/5 v3] Fix NVMe driver support on Power with 32-bit DMA

On 28.10.2015 [09:57:48 +1100], Julian Calaby wrote: > Hi Nishanth, > > On Wed, Oct 28, 2015 at 9:20 AM, Nishanth Aravamudan > wrote: > > On 26.10.2015 [18:27:46 -0700], David Miller wrote: > >> From: Nishanth Aravamudan > >> Date: Fri, 23 Oct

Re: [PATCH 0/5 v3] Fix NVMe driver support on Power with 32-bit DMA

On Wed, 2015-10-28 at 10:43 +1100, Julian Calaby wrote: > Hi Nishanth, > You'll be CCing the maintainers of each architecture on the patches > to > add the functions, so if they do have specific requirements, I'm sure > they'll let you know or provide patches. That sort of accross-all-arch change

[PATCH 04/19] powerpc: Remove redundant mflr in _switch

No need to execute mflr twice. Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/entry_64.S | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index e84e5bc..c8b4225 100644 ---

[PATCH 03/19] powerpc: Create context switch helpers save_sprs() and restore_sprs()

Move all our context switch SPR save and restore code into two helpers. We do a few optimisations: - Group all mfsprs and all mtsprs. In many cases an mtspr sets a scoreboarding bit that an mfspr waits on, so the current practise of mfspr A; mtspr A; mfpsr B; mtspr B is the worst scheduling we

[PATCH 11/19] crypto: vmx: Only call enable_kernel_vsx()

With the recent change to enable_kernel_vsx(), we no longer need to call enable_kernel_fp() and enable_kernel_altivec(). Signed-off-by: Anton Blanchard --- drivers/crypto/vmx/aes.c | 3 --- drivers/crypto/vmx/aes_cbc.c | 3 --- drivers/crypto/vmx/aes_ctr.c | 3 ---

[PATCH 10/19] powerpc: Move part of giveup_vsx into c

Move the MSR modification into c. Removing it from the assembly function will allow us to avoid costly MSR writes by batching them up. Check the FP and VMX bits before calling the relevant giveup_*() function. This makes giveup_vsx() and flush_vsx_to_thread() perform more like their sister

[PATCH 17/19] powerpc: create flush_all_to_thread()

Create a single function that flushes everything (FP, VMX, VSX, SPE). Doing this all at once means we only do one MSR write. Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/switch_to.h | 1 + arch/powerpc/kernel/process.c| 22 ++

[PATCH 18/19] powerpc: Rearrange __switch_to()

Most of __switch_to() is housekeeping, TLB batching, timekeeping etc. Move these away from the more complex and critical context switching code. Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/process.c | 52 +-- 1 file changed, 26

Re: [PATCH 2/7 v2] powerpc/dma-mapping: override dma_get_page_shift

On 28.10.2015 [12:00:20 +1100], Alexey Kardashevskiy wrote: > On 10/28/2015 09:27 AM, Nishanth Aravamudan wrote: > >On 27.10.2015 [17:02:16 +1100], Alexey Kardashevskiy wrote: > >>On 10/24/2015 07:57 AM, Nishanth Aravamudan wrote: > >>>On Power, the kernel's page size can differ from the IOMMU's

Re: [PATCH 0/5 v3] Fix NVMe driver support on Power with 32-bit DMA

Hi Nishanth, On Wed, Oct 28, 2015 at 10:40 AM, Nishanth Aravamudan wrote: > On 28.10.2015 [09:57:48 +1100], Julian Calaby wrote: >> Hi Nishanth, >> >> On Wed, Oct 28, 2015 at 9:20 AM, Nishanth Aravamudan >> wrote: >> > On 26.10.2015 [18:27:46

Re: [PATCH V2 0/3] perf/powerpc:Add ability to sample intr machine state in powerpc

Hi Denis, On Monday 26 October 2015 06:47 PM, Denis Kirjanov wrote: On 10/26/15, Anju T wrote: This short patch series add the ability to sample the interrupted machine state for each hardware sample Hi, how can we check your patch series without testing details? I

Re: [PATCH 0/5 v3] Fix NVMe driver support on Power with 32-bit DMA

On Tue, Oct 27, 2015 at 03:20:10PM -0700, Nishanth Aravamudan wrote: > On 26.10.2015 [18:27:46 -0700], David Miller wrote: > > From: Nishanth Aravamudan > > Date: Fri, 23 Oct 2015 13:54:20 -0700 > > > > > 1) add a generic dma_get_page_shift implementation that just

[PATCH 02/19] powerpc: Don't disable MSR bits in do_load_up_transact_*() functions

Similar to the non TM load_up_*() functions, don't disable the MSR bits on the way out. Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/fpu.S| 4 arch/powerpc/kernel/vector.S | 4 2 files changed, 8 deletions(-) diff --git a/arch/powerpc/kernel/fpu.S

[PATCH 08/19] powerpc: Remove NULL task struct pointer checks in FP and vector code

We used to allow giveup_*() to be called with a NULL task struct pointer. Now those cases are handled in the caller we can remove the checks. We can also remove giveup_altivec_notask() which is also unused. Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/switch_to.h

[PATCH 12/19] powerpc: Create msr_check_and_{set,clear}()

Create helper functions to set and clear MSR bits after first checking if they are already set. Grouping them will make it easy to avoid the MSR writes in a subsequent optimisation. Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/process.c | 107

Re: [PATCH V10 03/12] powerpc/pci: Cache VF index in pci_dn

On Wed, Oct 28, 2015 at 09:04:34AM +1100, Daniel Axtens wrote: >Hi, > >> >> diff --git a/arch/powerpc/include/asm/pci-bridge.h >> b/arch/powerpc/include/asm/pci-bridge.h >> index b3a226b..3d7e537 100644 >> --- a/arch/powerpc/include/asm/pci-bridge.h >> +++ b/arch/powerpc/include/asm/pci-bridge.h

Re: [PATCH 2/7 v2] powerpc/dma-mapping: override dma_get_page_shift

On Tue, Oct 27, 2015 at 05:02:16PM +1100, Alexey Kardashevskiy wrote: > >+unsigned long dma_get_page_shift(struct device *dev) > >+{ > >+struct iommu_table *tbl = get_iommu_table_base(dev); > >+if (tbl) > >+return tbl->it_page_shift; > > > All PCI devices have this

Re: [PATCH 0/5 v3] Fix NVMe driver support on Power with 32-bit DMA

From: Nishanth Aravamudan Date: Tue, 27 Oct 2015 15:20:10 -0700 > Well, looks like I should spin up a v4 anyways for the powerpc changes. > So, to make sure I understand your point, should I make the generic > dma_get_page_shift a compile-error kind of thing? It will

Re: [PATCH 0/5 v3] Fix NVMe driver support on Power with 32-bit DMA

From: "Busch, Keith" Date: Tue, 27 Oct 2015 22:36:43 + > If you're suggesting to compile-time break architectures that currently > work just fine with NVMe, let me stop you right there. Silently "working" without the architecture maintainer having to explicity look at

[PATCH 13/19] powerpc: Create disable_kernel_{fp,altivec,vsx,spe}()

The enable_kernel_*() functions leave the relevant MSR bits enabled until we exit the kernel sometime later. Create disable versions that wrap the kernel use of FP, Altivec VSX or SPE. While we don't want to disable it normally for performance reasons (MSR writes are slow), it will be used for a

[PATCH 14/19] powerpc: Add ppc_strict_facility_enable boot option

Add a boot option that strictly manages the MSR unavailable bits. This catches kernel uses of FP/Altivec/SPE that would otherwise corrupt user state. Signed-off-by: Anton Blanchard --- Documentation/kernel-parameters.txt | 6 ++ arch/powerpc/include/asm/reg.h | 9

Re: [PATCH 2/7 v2] powerpc/dma-mapping: override dma_get_page_shift

On 10/28/2015 09:27 AM, Nishanth Aravamudan wrote: On 27.10.2015 [17:02:16 +1100], Alexey Kardashevskiy wrote: On 10/24/2015 07:57 AM, Nishanth Aravamudan wrote: On Power, the kernel's page size can differ from the IOMMU's page size, so we need to override the generic implementation, which

Re: [PATCH V10 01/12] PCI/IOV: Rename and export virtfn_add/virtfn_remove

On Mon, Oct 26, 2015 at 11:15:51AM +0800, Wei Yang wrote: > During EEH recovery, hotplug is applied to the devices which don't > have drivers or their drivers don't support EEH. However, the hotplug, > which was implemented based on PCI bus, can't be applied to VF directly. > > The patch renames

Re: [PATCH V10 00/12] VF EEH on Power8

On Mon, Oct 26, 2015 at 11:15:50AM +0800, Wei Yang wrote: > This patchset enables EEH on SRIOV VFs. The general idea is to create proper > VF edev and VF PE and handle them properly. > ... > Gavin Shan (1): > powerpc/eeh: Don't block PCI config on resetting VF PE > > Wei Yang (11): >

[PATCH 05/19] powerpc: Remove UP only lazy floating point and vector optimisations

The UP only lazy floating point and vector optimisations were written back when SMP was not common, and neither glibc nor gcc used vector instructions. Now SMP is very common, glibc aggressively uses vector instructions and gcc autovectorises. We want to add new optimisations that apply to both

Re: [PATCH V10 01/12] PCI/IOV: Rename and export virtfn_add/virtfn_remove

On Tue, Oct 27, 2015 at 06:06:54PM -0500, Bjorn Helgaas wrote: >On Mon, Oct 26, 2015 at 11:15:51AM +0800, Wei Yang wrote: >> During EEH recovery, hotplug is applied to the devices which don't >> have drivers or their drivers don't support EEH. However, the hotplug, >> which was implemented based

Re: [PATCH 0/5 v3] Fix NVMe driver support on Power with 32-bit DMA

On 27.10.2015 [17:53:22 -0700], David Miller wrote: > From: Nishanth Aravamudan > Date: Tue, 27 Oct 2015 15:20:10 -0700 > > > Well, looks like I should spin up a v4 anyways for the powerpc changes. > > So, to make sure I understand your point, should I make the generic >

[PATCH] powerpc/fsl: Add #clock-cells and clockgen label to clockgen nodes

This allows new-style clock references to be used, which is needed for fman. The old clock nodes will be removed and all clock references converted to new-style once the qoriq-cpufreq driver is updated to stop depending on the old-style references in cpu nodes. Signed-off-by: Scott Wood

Re: [PATCH 0/5 v3] Fix NVMe driver support on Power with 32-bit DMA

From: Julian Calaby Date: Wed, 28 Oct 2015 10:43:35 +1100 > You'll be CCing the maintainers of each architecture on the patches to > add the functions, so if they do have specific requirements, I'm sure > they'll let you know or provide patches. People miss things,

[PATCH 01/19] powerpc: Don't disable kernel FP/VMX/VSX MSR bits on context switch

Writing the MSR is slow, so we want to avoid it whenever possible. A subsequent patch will add a debug option that strictly manages the FP/VMX/VSX unavailable bits. For now just remove it, matching what we do in other areas of the kernel (eg enable_kernel_altivec()). A context switch

[PATCH 06/19] powerpc: Simplify TM restore checks

Instead of having multiple giveup_*_maybe_transactional() functions, separate out the TM check into a new function called check_if_tm_restore_required(). This will make it easier to optimise the giveup_*() functions in a subsequent patch. Signed-off-by: Anton Blanchard ---

[PATCH 07/19] powerpc: Create mtmsrd_isync()

mtmsrd_isync() will do an mtmsrd followed by an isync on older processors. On newer processors we avoid the isync via a feature fixup. Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/reg.h | 8 arch/powerpc/kernel/process.c | 30

[PATCH 09/19] powerpc: Move part of giveup_fpu,altivec,spe into c

Move the MSR modification into new c functions. Removing it from the low level functions will allow us to avoid costly MSR writes by batching them up. Move the check_if_tm_restore_required() check into these new functions. Signed-off-by: Anton Blanchard ---

[PATCH 15/19] powerpc: Remove fp_enable() and vec_enable(), use msr_check_and_{set, clear}()

More consolidation of our MSR available bit handling. Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/processor.h | 2 -- arch/powerpc/kernel/fpu.S| 16 arch/powerpc/kernel/process.c| 6 -- arch/powerpc/kernel/vector.S

[PATCH 16/19] powerpc: create giveup_all()

Create a single function that gives everything up (FP, VMX, VSX, SPE). Doing this all at once means we only do one MSR write. A context switch microbenchmark using yield(): http://ozlabs.org/~anton/junkcode/context_switch2.c ./context_switch2 --test=yield --fp --altivec --vector 0 0 shows an

[PATCH 19/19] powerpc: clean up asm/switch_to.h

Remove a bunch of unnecessary fallback functions and group things in a more logical way. Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/switch_to.h | 39 ++-- 1 file changed, 11 insertions(+), 28 deletions(-) diff --git

Re: [PATCH V10 00/12] VF EEH on Power8

On Tue, Oct 27, 2015 at 06:11:13PM -0500, Bjorn Helgaas wrote: >On Mon, Oct 26, 2015 at 11:15:50AM +0800, Wei Yang wrote: >> This patchset enables EEH on SRIOV VFs. The general idea is to create proper >> VF edev and VF PE and handle them properly. >> ... > >> Gavin Shan (1): >> powerpc/eeh:

Re: [PATCH 2/7 v2] powerpc/dma-mapping: override dma_get_page_shift

On Tue, 2015-10-27 at 18:54 -0700, Nishanth Aravamudan wrote: > > In "bypass" mode, what TCE size is used? Is it guaranteed to be 4K? None :-) The TCEs are completely bypassed. You get a N:M linear mapping of all memory starting at 1<<59 PCI side. > Seems like this would be a different platform

[PATCH] cxl: sparse: add __iomem annotations in vphb.c

sparse identifies the following issues: drivers/misc/cxl/vphb.c:131:17: warning: incorrect type in assignment (different address spaces) drivers/misc/cxl/vphb.c:131:17:expected void volatile [noderef] * drivers/misc/cxl/vphb.c:131:17:got void *

[PATCH 2/2] powerpc: Copy only required pieces of the mm_context_t to the paca

Currently we copy the whole mm_context_t to the paca but only access a few bits of it. This is wasteful of space paca and also takes quite some time in the hot path of context switching. This patch pulls in only the required bits from the mm_context_t to the paca and on context switch, copies

[PATCH 1/2] powerpc: Add function to copy mm_context_t to the paca

This adds a function to copy the mm->context to the paca. This is only a basic conversion for now but will be used more extensively in the next patch. This also adds #ifdef CONFIG_PPC_BOOK3S around this code since it's not used elsewhere. Signed-off-by: Michael Neuling ---

[PATCH 2/2] platforms/powernv: Add support for Nvlink NPUs

NV-Link is a high speed interconnect that is used in conjunction with a PCI-E connection to create an interface between CPU and GPU that provides very high data bandwidth. A PCI-E connection to a GPU is used as the control path to initiate and report status of large data transfers sent via the

[PATCH 1/2] Revert "powerpc/pci: Remove unused struct pci_dn.pcidev field"

This commit removed the pcidev field from struct pci_dn as it was no longer in use by the kernel. However to support finding the association of Nvlink devices to GPU devices from the device-tree this field is required. This reverts commit 250c7b277c65. Signed-off-by: Alistair Popple

Re: [PATCH] cxl: sparse: add __iomem annotations in vphb.c

Acked-by: Ian Munsie ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev

Re: [PATCH 19/19] powerpc: clean up asm/switch_to.h

Hi Anton, [auto build test ERROR on powerpc/next -- if it's inappropriate base, please suggest rules for selecting the more suitable base] url: https://github.com/0day-ci/linux/commits/Anton-Blanchard/powerpc-Don-t-disable-kernel-FP-VMX-VSX-MSR-bits-on-context-switch/20151028-091736 config:

Re: [PATCH 2/7 v2] powerpc/dma-mapping: override dma_get_page_shift

On 28.10.2015 [11:20:05 +0900], Benjamin Herrenschmidt wrote: > On Tue, 2015-10-27 at 18:54 -0700, Nishanth Aravamudan wrote: > > > > In "bypass" mode, what TCE size is used? Is it guaranteed to be 4K? > > None :-) The TCEs are completely bypassed. You get a N:M linear mapping > of all memory

Re: [PATCH 09/19] powerpc: Move part of giveup_fpu, altivec, spe into c

Hi Anton, [auto build test ERROR on powerpc/next -- if it's inappropriate base, please suggest rules for selecting the more suitable base] url: https://github.com/0day-ci/linux/commits/Anton-Blanchard/powerpc-Don-t-disable-kernel-FP-VMX-VSX-MSR-bits-on-context-switch/20151028-091736 config:

Re: [PATCH 19/19] powerpc: clean up asm/switch_to.h

Hi Anton, [auto build test ERROR on powerpc/next -- if it's inappropriate base, please suggest rules for selecting the more suitable base] url: https://github.com/0day-ci/linux/commits/Anton-Blanchard/powerpc-Don-t-disable-kernel-FP-VMX-VSX-MSR-bits-on-context-switch/20151028-091736 config:

Re: [PATCH 2/7 v2] powerpc/dma-mapping: override dma_get_page_shift

On Tue, 2015-10-27 at 19:30 -0700, Nishanth Aravamudan wrote: > On 28.10.2015 [11:20:05 +0900], Benjamin Herrenschmidt wrote: > > On Tue, 2015-10-27 at 18:54 -0700, Nishanth Aravamudan wrote: > > > > > > In "bypass" mode, what TCE size is used? Is it guaranteed to be > > > 4K? > > > > None :-)

[PATCH 0/2] Add support for Nvlink

This series adds support for Nvlink, a high speed interconnect that is used in conjunction with PCI-E to create a high bandwidth interface between GPU and CPU. As the Nvlink hardware interface is similar to IBM's existing PCIe host bridges no major new kernel or user interfaces are added by this

Re: [PATCH] powerpc/pseries: Correct string length in pseries_of_derive_parent()

On 10/27/2015 03:17 AM, Andy Shevchenko wrote: > On Mon, 2015-10-26 at 14:33 -0500, Nathan Fontenot wrote: >> Commit a030e1e4bbd085bbcfd0a23f8d355fcd41f39bed made a change to use >> kstrndup() instead of kmalloc() + strlcpy() in >> pseries_of_derive_parent() >> which introduces a subtle change in