RE: [PATCH 1/6] powerpc/eeh: Refactor EEH flag accessors

2014-07-16 Thread David Laight
From: Gavin Shan There are multiple global EEH flags. Almost each flag has its own accessor, which doesn't make sense. The patch refactors EEH flag accessors so that they look unified: eeh_add_flag(): Add EEH flag eeh_set_flag() ?? eeh_clear_flag(): Clear EEH flag eeh_has_flag():

RE: [PATCH 3/6] powerpc/eeh: Reduce lines of log dump

2014-07-16 Thread David Laight
From: Gavin Shan The patch prints 4 PCIE or AER config registers each line, which is part of the EEH log so that it looks a bit more compact. ... - for (i=0; i=8; i++) { + for (i=0, j=0; i=8; i++) { eeh_ops-read_config(dn, cap+4*i, 4, cfg);

Re: [PATCH 1/6] powerpc/eeh: Refactor EEH flag accessors

2014-07-16 Thread Gavin Shan
On Wed, Jul 16, 2014 at 08:24:49AM +, David Laight wrote: From: Gavin Shan There are multiple global EEH flags. Almost each flag has its own accessor, which doesn't make sense. The patch refactors EEH flag accessors so that they look unified: eeh_add_flag(): Add EEH flag

[PATCH v2 0/6] powerpc/powernv: Support M64 window

2014-07-16 Thread Guo Chao
This version is rebased on top of Gavin's patches of EEH support for guest and related fixes which are supposed to be merged in 3.17. Changed from v1: * Don't overwrite PE flags * Don't return segment alignment if M64 is not supported * Output M64 total size and segment

[PATCH v2 1/6] powerpc/powernv: Enable M64 aperatus for PHB3

2014-07-16 Thread Guo Chao
This patch enables M64 aperatus for PHB3. We already had platform hook (ppc_md.pcibios_window_alignment) to affect the PCI resource assignment done in PCI core so that each PE's M32 resource was built on basis of M32 segment size. Similarly, we're using that for M64 assignment on basis of M64

[PATCH v2 2/6] powerpc/powernv: Allow to freeze PE

2014-07-16 Thread Guo Chao
From: Gavin Shan gws...@linux.vnet.ibm.com For compound PE, all PEs should be frozen if any one in the group becomes frozen. Unfortunately, hardware doesn't always do that automatically with help of PELTV. So we have to flirt with PESTA/B a bit to freeze all PEs for the case. The patch

[PATCH v2 3/6] powerpc/powernv: Split ioda_eeh_get_state()

2014-07-16 Thread Guo Chao
From: Gavin Shan gws...@linux.vnet.ibm.com Function ioda_eeh_get_state() is used to fetch EEH state for PHB or PE. We're going to support compound PE and the function becomes more complicated with that. The patch splits the function into two functions for PHB and PE cases separately to improve

[PATCH v2 4/6] powerpc/powernv: Handle compound PE

2014-07-16 Thread Guo Chao
From: Gavin Shan gws...@linux.vnet.ibm.com The patch introduces 3 PHB callbacks: compound PE state retrieval, force freezing and unfreezing compound PE. The PCI config accessors and PowerNV EEH backend can use them in subsequent patches. We don't export the capability of compound PE to EEH core,

[PATCH v2 6/6] powerpc/powernv: Handle compound PE in config accessors

2014-07-16 Thread Guo Chao
From: Gavin Shan gws...@linux.vnet.ibm.com The PCI config accessors check for PE frozen state and clear it if EEH isn't functional. The patch handles compound PE in config accessors if PHB supports it. For consistency, all PEs will be put into frozen state if any one in compound group gets frozen

[PATCH v2 5/6] powerpc/powernv: Handle compound PE for EEH

2014-07-16 Thread Guo Chao
From: Gavin Shan gws...@linux.vnet.ibm.com The patch handles compound PE for EEH backend. If one specific PE in compound group has been frozen, we enforces to freeze all PEs in the group. If we're enable DMA or MMIO for one PE in compound group, DMA or MMIO of all PEs in the group will be

Re: [PATCH 3/6] powerpc/eeh: Reduce lines of log dump

2014-07-16 Thread Gavin Shan
On Wed, Jul 16, 2014 at 08:30:55AM +, David Laight wrote: From: Gavin Shan The patch prints 4 PCIE or AER config registers each line, which is part of the EEH log so that it looks a bit more compact. ... -for (i=0; i=8; i++) { +for (i=0, j=0; i=8; i++) {

Re: Re: [PATCH v5 2/2] [BUGFIX] kprobes: Fix Failed to find blacklist error on ia64 and ppc64

2014-07-16 Thread Ingo Molnar
* Masami Hiramatsu masami.hiramatsu...@hitachi.com wrote: (2014/07/15 16:16), Benjamin Herrenschmidt wrote: On Tue, 2014-07-15 at 13:19 +1000, Michael Ellerman wrote: Signed-off-by: Masami Hiramatsu masami.hiramatsu...@hitachi.com Reported-by: Tony Luck tony.l...@gmail.com Tested-by:

Re: OF_DYNAMIC node lifecycle

2014-07-16 Thread Tyrel Datwyler
On 07/15/2014 10:33 PM, Grant Likely wrote: I've got another question about powerpc reconfiguration. I was looking at the dlpar_configure_connector() function in dlpar.c. I see that the function has the ability to process multiple nodes with additional sibling and child nodes. It appears to

[PATCH v2 1/7] dt: Introduce the FMan 10 Gb/s MDIO binding

2014-07-16 Thread Shruti Kanetkar
This document covers FManv2 and FManv3 mEMAC MDIO Signed-off-by: Shruti Kanetkar shr...@freescale.com --- .../devicetree/bindings/net/fsl-xgmac-phy.txt | 29 ++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/fsl-xgmac-phy.txt

[PATCH v2 5/7] powerpc/corenet: Add MDIO bus muxing support to the board device tree(s)

2014-07-16 Thread Shruti Kanetkar
Based on prior work by Andy Fleming aflem...@gmail.com Signed-off-by: Shruti Kanetkar shr...@freescale.com --- arch/powerpc/boot/dts/b4860qds.dts | 56 +++ arch/powerpc/boot/dts/b4qds.dtsi | 45 ++ arch/powerpc/boot/dts/p1023rdb.dts | 19 +++ arch/powerpc/boot/dts/p2041rdb.dts | 87

[PATCH v2 4/7] powerpc/corenet: Add DPAA FMan support to the SoC device tree(s)

2014-07-16 Thread Shruti Kanetkar
FMan 1 Gb/s MACs (dTSEC and mEMAC) have support for SGMII PHYs. Add support for the internal SerDes TBI PHYs Based on prior work by Andy Fleming aflem...@gmail.com Signed-off-by: Shruti Kanetkar shr...@freescale.com --- arch/powerpc/boot/dts/fsl/b4860si-post.dtsi | 28 +

[PATCH v2 2/7] net/fsl_pq_mdio: Document supported compatibles

2014-07-16 Thread Shruti Kanetkar
The device tree binding(s) document has fallen out of sync with the driver code. Update the list of supported devices to reflect current driver capabilities Signed-off-by: Shruti Kanetkar shr...@freescale.com --- Documentation/devicetree/bindings/net/fsl-tsec-phy.txt | 11 ++- 1 file

[PATCH v2 6/7] powerpc/corenet: Enable muxing MDIO buses via GPIO

2014-07-16 Thread Shruti Kanetkar
From: Andy Fleming aflem...@gmail.com Signed-off-by: Andy Fleming aflem...@gmail.com Signed-off-by: Shaohui Xie shaohui@freescale.com Signed-off-by: Shruti Kanetkar shr...@freescale.com --- arch/powerpc/configs/corenet32_smp_defconfig | 2 ++ arch/powerpc/configs/corenet64_smp_defconfig |

[PATCH v2 7/7] powerpc/corenet: Enable muxing MDIO buses via FPGA

2014-07-16 Thread Shruti Kanetkar
Signed-off-by: Andy Fleming aflem...@gmail.com Signed-off-by: Shaohui Xie shaohui@freescale.com Signed-off-by: Shruti Kanetkar shr...@freescale.com --- arch/powerpc/configs/corenet32_smp_defconfig | 1 + arch/powerpc/configs/corenet64_smp_defconfig | 1 +

Re: OF_DYNAMIC node lifecycle

2014-07-16 Thread Grant Likely
On Wed, Jul 16, 2014 at 12:30 PM, Tyrel Datwyler turtle.in.the.ker...@gmail.com wrote: On 07/15/2014 10:33 PM, Grant Likely wrote: I've got another question about powerpc reconfiguration. I was looking at the dlpar_configure_connector() function in dlpar.c. I see that the function has the

Re: [PATCH 2/2] PCI/MSI: Remove arch_msi_check_device()

2014-07-16 Thread Bjorn Helgaas
On Sat, Jul 12, 2014 at 01:21:08PM +0200, Alexander Gordeev wrote: There are no archs that override arch_msi_check_device() hook. Remove it as it is completely redundant. If an arch would need to check MSI/MSI-X possibility for a device it should make it within arch_setup_msi_irqs() hook.

Re: OF_DYNAMIC node lifecycle

2014-07-16 Thread Grant Likely
On Wed, Jul 16, 2014 at 2:57 PM, Grant Likely grant.lik...@linaro.org wrote: On Wed, Jul 16, 2014 at 12:30 PM, Tyrel Datwyler turtle.in.the.ker...@gmail.com wrote: On 07/15/2014 10:33 PM, Grant Likely wrote: I've got another question about powerpc reconfiguration. I was looking at the

Re: OF_DYNAMIC node lifecycle

2014-07-16 Thread Nathan Fontenot
On 07/16/2014 05:26 PM, Grant Likely wrote: On Wed, Jul 16, 2014 at 2:57 PM, Grant Likely grant.lik...@linaro.org wrote: On Wed, Jul 16, 2014 at 12:30 PM, Tyrel Datwyler turtle.in.the.ker...@gmail.com wrote: On 07/15/2014 10:33 PM, Grant Likely wrote: I've got another question about powerpc

Re: OF_DYNAMIC node lifecycle

2014-07-16 Thread Grant Likely
On Wed, Jul 16, 2014 at 5:12 PM, Nathan Fontenot nf...@austin.ibm.com wrote: On 07/16/2014 05:26 PM, Grant Likely wrote: On Wed, Jul 16, 2014 at 2:57 PM, Grant Likely grant.lik...@linaro.org wrote: On Wed, Jul 16, 2014 at 12:30 PM, Tyrel Datwyler turtle.in.the.ker...@gmail.com wrote: On

Re: [PATCH v1 13/16] powerpc/iommu: Implement put_page() if TCE had non-zero value

2014-07-16 Thread Alexey Kardashevskiy
On 07/15/2014 07:24 PM, Alexey Kardashevskiy wrote: Guests might put new TCEs without clearing them first and the PAPR spec allows that. This adds put_page() for TCEs which we just replaced. Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru --- arch/powerpc/kernel/iommu.c | 10

[PATCH v3] Use the POWER8 Micro Partition Prefetch Engine in KVM HV on POWER8

2014-07-16 Thread Stewart Smith
The POWER8 processor has a Micro Partition Prefetch Engine, which is a fancy way of saying has way to store and load contents of L2 or L2+MRU way of L3 cache. We initiate the storing of the log (list of addresses) using the logmpp instruction and start restore by writing to a SPR. The logmpp

Re: [PATCH v2 1/6] powerpc/powernv: Enable M64 aperatus for PHB3

2014-07-16 Thread Gavin Shan
On Wed, Jul 16, 2014 at 08:24:30PM +0800, Guo Chao wrote: This patch enables M64 aperatus for PHB3. We already had platform hook (ppc_md.pcibios_window_alignment) to affect the PCI resource assignment done in PCI core so that each PE's M32 resource was built on basis of M32 segment size.

[PATCH v2 2/6] powerpc/eeh: Selectively enable IO for error log

2014-07-16 Thread Gavin Shan
According to the experiment I did, PCI config access is blocked on P7IOC frozen PE by hardware, but PHB3 doesn't do that. That means we always get 0xFF's while dumping PCI config space of the frozen PE on P7IOC. We don't have the problem on PHB3. So we have to enable I/O prioir to collecting error

[PATCH v2 0/6] EEH Cleanup

2014-07-16 Thread Gavin Shan
The patchset is EEH cleanup and expected to be merged during 3.17 window. The the patchset is expected to be applied after: | EEH support for guest | 2 more bug fixes for EEH support for guest | M64 related EEH changes | 2 bug fixes from Mike Qiu | +- The current patchset

[PATCH v2 5/6] powerpc/eeh: Make diag-data not endian dependent

2014-07-16 Thread Gavin Shan
It's followup of commit ddf0322a (powerpc/powernv: Fix endianness problems in EEH). The patch helps to get non-endian-dependent diag-data. Cc: Guo Chao y...@linux.vnet.ibm.com Signed-off-by: Gavin Shan gws...@linux.vnet.ibm.com --- arch/powerpc/include/asm/opal.h | 128

[PATCH v2 3/6] powerpc/eeh: Reduce lines of log dump

2014-07-16 Thread Gavin Shan
The patch prints 4 PCIE or AER config registers each line, which is part of the EEH log so that it looks a bit more compact. Suggested-by: Benjamin Herrenschmidt b...@kernel.crashing.org Signed-off-by: Gavin Shan gws...@linux.vnet.ibm.com --- v2: Siplified condition to output buffer and renamed i

[PATCH v2 1/6] powerpc/eeh: Refactor EEH flag accessors

2014-07-16 Thread Gavin Shan
There are multiple global EEH flags. Almost each flag has its own accessor, which doesn't make sense. The patch refactors EEH flag accessors so that they look unified: eeh_add_flag(): Add EEH flag eeh_clear_flag(): Clear EEH flag eeh_has_flag(): Check if one specific flag has been set

[PATCH v2 6/6] powerpc/eeh: Aux PE data for error log

2014-07-16 Thread Gavin Shan
The patch allows PE (struct eeh_pe) instance to have auxillary data, whose size is configurable on basis of platform. For PowerNV, the auxillary data will be used to cache PHB diag-data for that PE (frozen PE or fenced PHB). In turn, we can retrieve the diag-data at any later points. It's useful

[PATCH v2 4/6] powerpc/eeh: Replace pr_warning() with pr_warn()

2014-07-16 Thread Gavin Shan
pr_warn() is equal to pr_warning(), but the former is a bit more formal according to commit fc62f2f (kernel.h: add pr_warn for symmetry to dev_warn, netdev_warn). The patch replaces pr_warning() with pr_warn(). Signed-off-by: Gavin Shan gws...@linux.vnet.ibm.com --- arch/powerpc/kernel/eeh.c

[PATCH] powerpc: Document how we set AIL on guest kernels

2014-07-16 Thread Michael Ellerman
I spent ten minutes scratching my head, trying to work out where we enabled relocation on interrupts for guest kernels. Expand the doco to make it clear. Signed-off-by: Michael Ellerman m...@ellerman.id.au --- arch/powerpc/kernel/setup_64.c | 6 +- 1 file changed, 5 insertions(+), 1