Re: [PATCH] ibmvnic: remove excessive irqsave

es flags from line 5404. > Thanks. Please add Fixes: 4a41c421f367 ("ibmvnic: serialize access to work queue on remove") > Signed-off-by: Junlin Yang Reviewed-by: Sukadev Bhattiprolu

Re: [PATCH] ibmvnic: Fix possibly uninitialized old_num_tx_queues variable warning.

re is no reason to > not initialize the variables unconditionally avoiding the warning. Yeah, its a false positive, but initializing doesn't hurt. > > Fixes: 635e442f4a48 ("ibmvnic: merge ibmvnic_reset_init and ibmvnic_init") > Signed-off-by: Michal Suchanek Reviewed-by: Sukadev Bhattiprolu

Re: linux-next: manual merge of the net-next tree with the net tree

er of the conflicting tree to minimise any particularly > complex conflicts. The changes look good to me. Thanks. Sukadev

Re: [PATCH v2 3/7] powerpc: use task_pid_nr() for TID allocation

Andrew Donnellan [andrew.donnel...@au1.ibm.com] wrote: > [+ Sukadev, Christophe] > > On 18/04/18 11:08, Alastair D'Silva wrote: > > From: Alastair D'Silva <alast...@d-silva.org> > > > > The current implementation of TID allocation, using a global IDR, may > &g

Re: [PATCH v2 3/7] powerpc: use task_pid_nr() for TID allocation

Andrew Donnellan [andrew.donnel...@au1.ibm.com] wrote: > [+ Sukadev, Christophe] > > On 18/04/18 11:08, Alastair D'Silva wrote: > > From: Alastair D'Silva > > > > The current implementation of TID allocation, using a global IDR, may > > result in an e

[tip:perf/core] perf vendor events: Update POWER9 events

Commit-ID: 9749adc3b2a23c91b2eda8758ff0c650d731aa2f Gitweb: https://git.kernel.org/tip/9749adc3b2a23c91b2eda8758ff0c650d731aa2f Author: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> AuthorDate: Tue, 13 Mar 2018 12:33:29 -0500 Committer: Arnaldo Carvalho de Melo <a...@r

[tip:perf/core] perf vendor events: Update POWER9 events

Commit-ID: 9749adc3b2a23c91b2eda8758ff0c650d731aa2f Gitweb: https://git.kernel.org/tip/9749adc3b2a23c91b2eda8758ff0c650d731aa2f Author: Sukadev Bhattiprolu AuthorDate: Tue, 13 Mar 2018 12:33:29 -0500 Committer: Arnaldo Carvalho de Melo CommitDate: Fri, 16 Mar 2018 13:57:08 -0300 perf

Re: [PATCH] perf vendor events: fix processing for xfs

s can result > in a broken pmu_events.c being generated. I run into the problem on a 4.15-based kernel/xfs but not on a 3.10-based kernel! Have not investigated, but this fix is good. > > Fix this by adding the appropriate check in is_leaf_dir(). > > Cc: Sukadev Bhattiprolu <suka...@li

Re: [PATCH] perf vendor events: fix processing for xfs

s can result > in a broken pmu_events.c being generated. I run into the problem on a 4.15-based kernel/xfs but not on a 3.10-based kernel! Have not investigated, but this fix is good. > > Fix this by adding the appropriate check in is_leaf_dir(). > > Cc: Sukadev Bhattiprolu > Sign

[GIT PULL] Please pull JSON files for POWR9 PMU events

://github.com/sukadev/linux/ p9-json-v5 for you to fetch changes up to 99c9dff949f2502964005f9afa8d60c89b446f2c: perf vendor events: Update POWER9 events (2018-03-13 16:48:12 -0500) Sukadev Bhattiprolu (1): perf vendor events

[GIT PULL] Please pull JSON files for POWR9 PMU events

://github.com/sukadev/linux/ p9-json-v5 for you to fetch changes up to 99c9dff949f2502964005f9afa8d60c89b446f2c: perf vendor events: Update POWER9 events (2018-03-13 16:48:12 -0500) Sukadev Bhattiprolu (1): perf vendor events

Re: perf-core build fails on powerpc

John Garry [john.ga...@huawei.com] wrote: > On 13/03/2018 20:10, Sukadev Bhattiprolu wrote: > > > Hi John, > > > > I have an xfs file system which seems to have d_type == DT_UNKNOWN for all > > entries in 'tools/perf/pmu-events/arch/power8'! readdir(3) says -&g

Re: perf-core build fails on powerpc

John Garry [john.ga...@huawei.com] wrote: > On 13/03/2018 20:10, Sukadev Bhattiprolu wrote: > > > Hi John, > > > > I have an xfs file system which seems to have d_type == DT_UNKNOWN for all > > entries in 'tools/perf/pmu-events/arch/power8'! readdir(3) says -&g

Re: perf-core build fails on powerpc

John Garry [john.ga...@huawei.com] wrote: > On 13/03/2018 19:17, Sukadev Bhattiprolu wrote: > > > > > > Building perf on Powerpc seems broken when using Arnaldo's perf/core branch > > with HEAD as: > > > > 1b442ed ("perf test: Fix

Re: perf-core build fails on powerpc

John Garry [john.ga...@huawei.com] wrote: > On 13/03/2018 19:17, Sukadev Bhattiprolu wrote: > > > > > > Building perf on Powerpc seems broken when using Arnaldo's perf/core branch > > with HEAD as: > > > > 1b442ed ("perf test: Fix

perf-core build fails on powerpc

Building perf on Powerpc seems broken when using Arnaldo's perf/core branch with HEAD as: 1b442ed ("perf test: Fix exit code for record+probe_libc_inet_pton.sh") It maybe related to this commit: commit d596299 Author: John Garry Date: Thu

perf-core build fails on powerpc

Building perf on Powerpc seems broken when using Arnaldo's perf/core branch with HEAD as: 1b442ed ("perf test: Fix exit code for record+probe_libc_inet_pton.sh") It maybe related to this commit: commit d596299 Author: John Garry Date: Thu Mar 8 18:58:29 2018

[PATCH] Fix cleanup when VAS is not configured

From: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> Date: Fri, 9 Feb 2018 11:49:06 -0600 Subject: [PATCH 1/1] powerpc/vas: Fix cleanup when VAS is not configured When VAS is not configured, unregister the platform driver. Also simplify cleanup by delaying vas debugfs init until we kn

[PATCH] Fix cleanup when VAS is not configured

From: Sukadev Bhattiprolu Date: Fri, 9 Feb 2018 11:49:06 -0600 Subject: [PATCH 1/1] powerpc/vas: Fix cleanup when VAS is not configured When VAS is not configured, unregister the platform driver. Also simplify cleanup by delaying vas debugfs init until we know VAS is configured. Signed-off

Re: [PATCH 2/4] powerpc/vas: Fix cleanup when VAS is not configured

Michael Ellerman [m...@ellerman.id.au] wrote: > Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> writes: > > > When VAS is not configured in the system, make sure to remove > > the VAS debugfs directory and unregister the platform driver. > > > > Sign

Re: [PATCH 2/4] powerpc/vas: Fix cleanup when VAS is not configured

Michael Ellerman [m...@ellerman.id.au] wrote: > Sukadev Bhattiprolu writes: > > > When VAS is not configured in the system, make sure to remove > > the VAS debugfs directory and unregister the platform driver. > > > > Signed-off-by: Sukadev Bhattiprolu >

[PATCH 2/4] powerpc/vas: Fix cleanup when VAS is not configured

When VAS is not configured in the system, make sure to remove the VAS debugfs directory and unregister the platform driver. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/platforms/powernv/vas-debug.c | 5 + arch/powerpc/platforms/powernv/vas.c

[PATCH 4/4] powerpc/vas: Add a couple of trace points

Add a couple of trace points in the VAS driver Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- Changelog [v2] - Make TRACE_INCLUDE_PATH relative to --- arch/powerpc/platforms/powernv/vas-trace.h | 112 arch/powerpc/platforms/power

[PATCH 2/4] powerpc/vas: Fix cleanup when VAS is not configured

When VAS is not configured in the system, make sure to remove the VAS debugfs directory and unregister the platform driver. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/platforms/powernv/vas-debug.c | 5 + arch/powerpc/platforms/powernv/vas.c | 5 - arch/powerpc/platforms

[PATCH 4/4] powerpc/vas: Add a couple of trace points

Add a couple of trace points in the VAS driver Signed-off-by: Sukadev Bhattiprolu --- Changelog [v2] - Make TRACE_INCLUDE_PATH relative to --- arch/powerpc/platforms/powernv/vas-trace.h | 112 arch/powerpc/platforms/powernv/vas-window.c | 9 +++ 2 files

[PATCH RESEND 3/4] powerpc/vas: Remove a stray line in Makefile

Remove a bogus line from arch/powerpc/platforms/powernv/Makefile that was added by commit ece4e51 ("powerpc/vas: Export HVWC to debugfs"). Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/platforms/powernv/Makefile | 1 - 1 file changed, 1 deletio

[PATCH RESEND 1/4] powerpc/vas: Fix order of cleanup in debugfs dir

Fix the order of cleanup to ensure we free the name buffer in case of an error creating 'hvwc' or 'info' files. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/platforms/powernv/vas-debug.c | 8 1 file changed, 4 insertions(+), 4 deletions(-) diff

[PATCH RESEND 3/4] powerpc/vas: Remove a stray line in Makefile

Remove a bogus line from arch/powerpc/platforms/powernv/Makefile that was added by commit ece4e51 ("powerpc/vas: Export HVWC to debugfs"). Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/platforms/powernv/Makefile | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/powerpc

[PATCH RESEND 1/4] powerpc/vas: Fix order of cleanup in debugfs dir

Fix the order of cleanup to ensure we free the name buffer in case of an error creating 'hvwc' or 'info' files. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/platforms/powernv/vas-debug.c | 8 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/platforms

Re: [PATCH 5/5] powerpc/ftw: Document FTW API/usage

with your other comments as well and will send a new version. Thanks for the detailed review. Sukadev

Re: [PATCH 5/5] powerpc/ftw: Document FTW API/usage

with your other comments as well and will send a new version. Thanks for the detailed review. Sukadev

Re: [PATCH 3/5] powerpc/ftw: Implement a simple FTW driver

; + break; > > + } > > return -EINVAL; > > +} > > Do you expect to implement more ioctls? If not, just change the switch to > an if (). Maybe a couple more but changed it to an 'if' for now (and fixed an error handling issue in ftw_file_init()). Here i

Re: [PATCH 3/5] powerpc/ftw: Implement a simple FTW driver

; + break; > > + } > > return -EINVAL; > > +} > > Do you expect to implement more ioctls? If not, just change the switch to > an if (). Maybe a couple more but changed it to an 'if' for now (and fixed an error handling issue in ftw_file_init()). Here i

Re: [PATCH 2/5] powerpc/ftw: Define FTW_SETUP ioctl API

. Here is the updated patch. Thanks for the review. Sukadev --- >From 1f347c199a0b1bbc528705c8e9ddd11c825a80fc Mon Sep 17 00:00:00 2001 From: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> Date: Thu, 2 Feb 2017 06:20:07 -0500 Subject: [PATCH 2/5] powerpc/ftw: Define FTW_SETUP ioctl API

Re: [PATCH 2/5] powerpc/ftw: Define FTW_SETUP ioctl API

. Here is the updated patch. Thanks for the review. Sukadev --- >From 1f347c199a0b1bbc528705c8e9ddd11c825a80fc Mon Sep 17 00:00:00 2001 From: Sukadev Bhattiprolu Date: Thu, 2 Feb 2017 06:20:07 -0500 Subject: [PATCH 2/5] powerpc/ftw: Define FTW_SETUP ioctl API Define the FTW_SETUP ioctl interfa

Re: [PATCH 1/2] powerpc: export thread-tidr interfaces

counter. Yes the FTW driver avoids calling clear_thread_tidr() for the same reasons. I don't have a strong case for exporting clear_thread_tidr(). Here is the updated patch, exporting just the set_thread_tidr(). Thanks, Sukadev --- >From 204ee3c918f8dad46c1e40d2d3730b07c10a87a3 Mon Sep 17 00:00:0

Re: [PATCH 1/2] powerpc: export thread-tidr interfaces

counter. Yes the FTW driver avoids calling clear_thread_tidr() for the same reasons. I don't have a strong case for exporting clear_thread_tidr(). Here is the updated patch, exporting just the set_thread_tidr(). Thanks, Sukadev --- >From 204ee3c918f8dad46c1e40d2d3730b07c10a87a3 Mon Sep 17 00:00:00

[PATCH 1/5] powerpc/vas: Remove a stray line in Makefile

Remove a bogus line from arch/powerpc/platforms/powernv/Makefile that was added by commit ece4e51 ("powerpc/vas: Export HVWC to debugfs"). Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/platforms/powernv/Makefile | 1 - 1 file changed, 1 deletio

[PATCH 1/5] powerpc/vas: Remove a stray line in Makefile

Remove a bogus line from arch/powerpc/platforms/powernv/Makefile that was added by commit ece4e51 ("powerpc/vas: Export HVWC to debugfs"). Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/platforms/powernv/Makefile | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/powerpc

[PATCH 3/5] powerpc/ftw: Implement a simple FTW driver

/wake up. PATCH 5/5 documents the API and includes an example of the usage. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- Changelog[v2] - [Michael Neuling] Rename from drop "nx" from name "nx-ftw". - [Michael Neuling] Use a single VAS_F

[PATCH 3/5] powerpc/ftw: Implement a simple FTW driver

/wake up. PATCH 5/5 documents the API and includes an example of the usage. Signed-off-by: Sukadev Bhattiprolu --- Changelog[v2] - [Michael Neuling] Rename from drop "nx" from name "nx-ftw". - [Michael Neuling] Use a single VAS_FTW_SETUP ioctl to simplify

[PATCH 4/5] powerpc/ftw: Add a couple of trace points

Add a couple of trace points in the FTW driver Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- drivers/misc/ftw/ftw-trace.h | 75 drivers/misc/ftw/ftw.c | 6 2 files changed, 81 insertions(+) create mode 100644 d

[PATCH 4/5] powerpc/ftw: Add a couple of trace points

Add a couple of trace points in the FTW driver Signed-off-by: Sukadev Bhattiprolu --- drivers/misc/ftw/ftw-trace.h | 75 drivers/misc/ftw/ftw.c | 6 2 files changed, 81 insertions(+) create mode 100644 drivers/misc/ftw/ftw-trace.h diff

[PATCH 5/5] powerpc/ftw: Document FTW API/usage

Document the usage of the VAS Fast thread-wakeup API and add an entry in MAINTAINERS file. Thanks for input/comments from Benjamin Herrenschmidt, Michael Neuling, Michael Ellerman, Robert Blackmore, Ian Munsie, Haren Myneni and Paul Mackerras. Signed-off-by: Sukadev Bhattiprolu <s

[PATCH 5/5] powerpc/ftw: Document FTW API/usage

Document the usage of the VAS Fast thread-wakeup API and add an entry in MAINTAINERS file. Thanks for input/comments from Benjamin Herrenschmidt, Michael Neuling, Michael Ellerman, Robert Blackmore, Ian Munsie, Haren Myneni and Paul Mackerras. Signed-off-by: Sukadev Bhattiprolu --- Changelog

[PATCH 2/5] powerpc/ftw: Define FTW_SETUP ioctl API

Define the FTW_SETUP ioctl interface for fast thread wakeup (FTW). A follow-on patch will implement the FTW driver and ioctl. Thanks to input from Ben Herrenschmidt, Michael Neuling, Michael Ellerman. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- Change

[PATCH 2/5] powerpc/ftw: Define FTW_SETUP ioctl API

Define the FTW_SETUP ioctl interface for fast thread wakeup (FTW). A follow-on patch will implement the FTW driver and ioctl. Thanks to input from Ben Herrenschmidt, Michael Neuling, Michael Ellerman. Signed-off-by: Sukadev Bhattiprolu --- Changelog[v2] - [Michael Neuling] Use a single

[PATCH 0/5] Implement FTW driver

https://github.com/sukadev/linux/tree/ftw-next Thanks to input from Ben Herrenschmidt, Michael Ellerman, Michael Neuling and Robert Blackmore. Sukadev Bhattiprolu (5): powerpc/vas: Remove a stray line in Makefile powerpc/ftw: Define FTW_SETUP ioctl API powerpc/ftw: Implement a si

[PATCH 0/5] Implement FTW driver

https://github.com/sukadev/linux/tree/ftw-next Thanks to input from Ben Herrenschmidt, Michael Ellerman, Michael Neuling and Robert Blackmore. Sukadev Bhattiprolu (5): powerpc/vas: Remove a stray line in Makefile powerpc/ftw: Define FTW_SETUP ioctl API powerpc/ftw: Implement a si

[PATCH 1/1] powerpc/vas: Add a couple of trace points

Add a couple of trace points in the VAS driver. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/platforms/powernv/vas-trace.h | 112 arch/powerpc/platforms/powernv/vas-window.c | 9 +++ 2 files changed, 121 insertions(+)

[PATCH 1/1] powerpc/vas: Add a couple of trace points

Add a couple of trace points in the VAS driver. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/platforms/powernv/vas-trace.h | 112 arch/powerpc/platforms/powernv/vas-window.c | 9 +++ 2 files changed, 121 insertions(+) create mode 100644 arch/powerpc

[PATCH 2/2] powerpc: export set_thread_uses_vas()

Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/kernel/process.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index f20c1ad..d22055b 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/p

[PATCH 2/2] powerpc: export set_thread_uses_vas()

Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/kernel/process.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index f20c1ad..d22055b 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1475,6

[PATCH 1/2] powerpc: export thread-tidr interfaces

Export set_thread_tidr() and clear_thread_tidr() interfaces so they can be used by external modules. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/kernel/process.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/kernel/process.c

[PATCH 1/2] powerpc: export thread-tidr interfaces

Export set_thread_tidr() and clear_thread_tidr() interfaces so they can be used by external modules. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/kernel/process.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index

[PATCH 1/1] powerpc: Emulate paste instruction

thread reconfiguration doesn't occur. Signed-off-by: Michael Neuling <mi...@neuling.org> Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- Changelog[v4]: - We need to disable pagefaults after all when modifying the thread reconfig registers. Use a mutex, rath

[PATCH 1/1] powerpc: Emulate paste instruction

. Signed-off-by: Michael Neuling Signed-off-by: Sukadev Bhattiprolu --- Changelog[v4]: - We need to disable pagefaults after all when modifying the thread reconfig registers. Use a mutex, rather than a spinlock around the thread reconfig registers. Acquire the mutex

[PATCH 1/1] vas: vas_window_init_dbgdir: fix order of cleanup.

Fix the order of cleanup to ensure we free the name buffer in case of an error creating 'hvwc' or 'info' files. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/platforms/powernv/vas-debug.c | 8 1 file changed, 4 insertions(+), 4 deletions(-) diff

[PATCH 1/1] vas: vas_window_init_dbgdir: fix order of cleanup.

Fix the order of cleanup to ensure we free the name buffer in case of an error creating 'hvwc' or 'info' files. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/platforms/powernv/vas-debug.c | 8 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/platforms

[PATCH 1/1]: powerpc: block interrupts when updating TIDR

From: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> Date: Tue, 28 Nov 2017 13:39:43 -0600 Subject: [PATCH 1/1]: powerpc: block interrupts when updating TIDR clear_thread_tidr() is called in interrupt context as a part of delayed put of the task structure (i.e as a part of timer int

[PATCH 1/1]: powerpc: block interrupts when updating TIDR

From: Sukadev Bhattiprolu Date: Tue, 28 Nov 2017 13:39:43 -0600 Subject: [PATCH 1/1]: powerpc: block interrupts when updating TIDR clear_thread_tidr() is called in interrupt context as a part of delayed put of the task structure (i.e as a part of timer interrupt). To prevent a deadlock, block

[PATCH] powerpc/vas, export chip_to_vas_id()

>From 958f8db089f4b89407fc4b89bccd3eaef585aa96 Mon Sep 17 00:00:00 2001 From: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> Date: Mon, 20 Nov 2017 12:53:15 -0600 Subject: [PATCH 1/1] powerpc/vas, export chip_to_vas_id() Export the symbol chip_to_vas_id() to fix a build fai

[PATCH] powerpc/vas, export chip_to_vas_id()

>From 958f8db089f4b89407fc4b89bccd3eaef585aa96 Mon Sep 17 00:00:00 2001 From: Sukadev Bhattiprolu Date: Mon, 20 Nov 2017 12:53:15 -0600 Subject: [PATCH 1/1] powerpc/vas, export chip_to_vas_id() Export the symbol chip_to_vas_id() to fix a build failure when CONFIG_CRYPTO_DEV_NX_COMPRESS_POWERN

[tip:perf/core] perf vendor events powerpc: Update POWER9 events

Commit-ID: e795dd42b716ff36ebaa5384fd1be8458d6c9c34 Gitweb: https://git.kernel.org/tip/e795dd42b716ff36ebaa5384fd1be8458d6c9c34 Author: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> AuthorDate: Wed, 8 Nov 2017 18:42:03 -0500 Committer: Arnaldo Carvalho de Melo <a...@r

[tip:perf/core] perf vendor events powerpc: Update POWER9 events

Commit-ID: e795dd42b716ff36ebaa5384fd1be8458d6c9c34 Gitweb: https://git.kernel.org/tip/e795dd42b716ff36ebaa5384fd1be8458d6c9c34 Author: Sukadev Bhattiprolu AuthorDate: Wed, 8 Nov 2017 18:42:03 -0500 Committer: Arnaldo Carvalho de Melo CommitDate: Thu, 16 Nov 2017 14:49:54 -0300 perf

[GIT PULL] Please pull JSON files for POWR9 PMU events

://github.com/sukadev/linux p9-json-v4 for you to fetch changes up to 4afb062d7d306bf56dbae9b5291e3515ccfede4c: perf vendor events powerpc: Update POWER9 events (2017-11-08 18:42:03 -0500) Sukadev Bhattiprolu (1): perf vendor

[GIT PULL] Please pull JSON files for POWR9 PMU events

://github.com/sukadev/linux p9-json-v4 for you to fetch changes up to 4afb062d7d306bf56dbae9b5291e3515ccfede4c: perf vendor events powerpc: Update POWER9 events (2017-11-08 18:42:03 -0500) Sukadev Bhattiprolu (1): perf vendor

[PATCH v3 03/18] powerpc/vas: Cleanup some debug code

Clean up vas.h and the debug code around ifdef vas_debug. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- Changelog[v3] - Minor tweak to a debug message --- arch/powerpc/platforms/powernv/vas-window.c | 8 +++-- arch/powerpc/platforms/powernv/vas.h

[PATCH v3 03/18] powerpc/vas: Cleanup some debug code

Clean up vas.h and the debug code around ifdef vas_debug. Signed-off-by: Sukadev Bhattiprolu --- Changelog[v3] - Minor tweak to a debug message --- arch/powerpc/platforms/powernv/vas-window.c | 8 +++-- arch/powerpc/platforms/powernv/vas.h| 54 ++--- 2

[PATCH v3 08/18] powerpc/vas: poll for return of window credits

Normally, the NX driver waits for the CRBs to be processed before closing the window. But it is better to ensure that the credits are returned before the window gets reassigned later. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/platforms/powernv/vas-wi

[PATCH v3 04/18] powerpc/vas: Drop poll_window_cast_out().

Polling for window cast out is listed in the spec, but turns out that it is not strictly necessary and slows down window close. Making it a stub for now. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/platforms/powernv/vas-window.

[PATCH v3 08/18] powerpc/vas: poll for return of window credits

Normally, the NX driver waits for the CRBs to be processed before closing the window. But it is better to ensure that the credits are returned before the window gets reassigned later. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/platforms/powernv/vas-window.c | 45

[PATCH v3 04/18] powerpc/vas: Drop poll_window_cast_out().

Polling for window cast out is listed in the spec, but turns out that it is not strictly necessary and slows down window close. Making it a stub for now. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/platforms/powernv/vas-window.c | 34 ++--- 1 file changed, 17

[PATCH v3 07/18] powerpc/vas: Save configured window credits

Save the configured max window credits for a window in the vas_window structure. We will need this when polling for return of window credits. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/platforms/powernv/vas-window.c | 6 -- arch/powerpc/platforms/p

[PATCH v3 07/18] powerpc/vas: Save configured window credits

Save the configured max window credits for a window in the vas_window structure. We will need this when polling for return of window credits. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/platforms/powernv/vas-window.c | 6 -- arch/powerpc/platforms/powernv/vas.h| 1 + 2 files

[PATCH v3 05/18] powerpc/vas: Use helper to unpin/close window

Use a helper to have the hardware unpin and mark a window closed. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/platforms/powernv/vas-window.c | 22 +++--- 1 file changed, 15 insertions(+), 7 deletions(-) diff --git a/arch/powerpc/pla

[PATCH v3 05/18] powerpc/vas: Use helper to unpin/close window

Use a helper to have the hardware unpin and mark a window closed. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/platforms/powernv/vas-window.c | 22 +++--- 1 file changed, 15 insertions(+), 7 deletions(-) diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch

[PATCH v3 09/18] powerpc/vas: Create cpu to vas id mapping

Create a cpu to vasid mapping so callers can specify -1 instead of trying to find a VAS id. Changelog[v2] [Michael Ellerman] Use per-cpu variables to simplify code. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/platforms/powernv/vas.

[PATCH v3 12/18] powerpc: have copy depend on CONFIG_BOOK3S_64

Have the COPY/PASTE instructions depend on CONFIG_BOOK3S_64 rather than CONFIG_PPC_STD_MMU_64. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/kernel/process.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/pro

[PATCH v3 11/18] powerpc/vas: Export HVWC to debugfs

nly relevant to a receive window so we were not setting it for a send window (which is is paired to a receive window anyway). But to simplify reporting in debugfs, set the 'cop' field for the send window also. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- Cha

[PATCH v3 06/18] powerpc/vas: Reduce polling interval for busy state

A VAS window is normally in "busy" state for only a short duration. Reduce the time we wait for the window to go to "not-busy" state to speed-up vas_win_close() a bit. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/platforms

[PATCH v3 09/18] powerpc/vas: Create cpu to vas id mapping

Create a cpu to vasid mapping so callers can specify -1 instead of trying to find a VAS id. Changelog[v2] [Michael Ellerman] Use per-cpu variables to simplify code. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/platforms/powernv/vas.c | 14 +- 1 file changed, 13

[PATCH v3 12/18] powerpc: have copy depend on CONFIG_BOOK3S_64

Have the COPY/PASTE instructions depend on CONFIG_BOOK3S_64 rather than CONFIG_PPC_STD_MMU_64. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/kernel/process.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel

[PATCH v3 11/18] powerpc/vas: Export HVWC to debugfs

nly relevant to a receive window so we were not setting it for a send window (which is is paired to a receive window anyway). But to simplify reporting in debugfs, set the 'cop' field for the send window also. Signed-off-by: Sukadev Bhattiprolu --- Changelog[v3]: - [Michael Ellerman] Fix cou

[PATCH v3 06/18] powerpc/vas: Reduce polling interval for busy state

A VAS window is normally in "busy" state for only a short duration. Reduce the time we wait for the window to go to "not-busy" state to speed-up vas_win_close() a bit. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/platforms/powernv/vas-window.c | 10 ++---

[PATCH v3 14/18] powerpc: Define set_thread_uses_vas()

d_uses_vas(), that VAS can use to indicate that the current process opened a send window. During context switch, issue CP_ABORT only for processes that have the flag set. Thanks for input from Nick Piggin, Michael Ellerman. Cc: Nicholas Piggin <npig...@gmail.com> Signed-off-by: Sukadev B

[PATCH v3 17/18] powerpc/vas: Define vas_win_id()

refers to this system-wide unique id as a Partition Send Window ID which is expected to be used during fault handling. Hence the "pswid" in the function names. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/vas.h | 5 +++

[PATCH v3 14/18] powerpc: Define set_thread_uses_vas()

d_uses_vas(), that VAS can use to indicate that the current process opened a send window. During context switch, issue CP_ABORT only for processes that have the flag set. Thanks for input from Nick Piggin, Michael Ellerman. Cc: Nicholas Piggin Signed-off-by: Sukadev Bhattiprolu --- Changelog[v3]:

[PATCH v3 17/18] powerpc/vas: Define vas_win_id()

refers to this system-wide unique id as a Partition Send Window ID which is expected to be used during fault handling. Hence the "pswid" in the function names. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/include/asm/vas.h | 5 + arch/powerpc/platforms/powernv/va

[PATCH v3 10/18] powerpc/vas, nx-842: Define and use chip_to_vas_id()

will be useful if a thread running on one chip wants to open a window on another chip (like the NX-842 driver does during start up). Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/vas.h | 9 + arch/powerpc/platforms/powernv/vas.

[PATCH v3 10/18] powerpc/vas, nx-842: Define and use chip_to_vas_id()

will be useful if a thread running on one chip wants to open a window on another chip (like the NX-842 driver does during start up). Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/include/asm/vas.h | 9 + arch/powerpc/platforms/powernv/vas.c | 11 +++ drivers/crypto/nx/nx-842

[PATCH v3 15/18] powerpc: Emulate paste instruction

thread reconfiguration doesn't occur. Cc: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com> Signed-off-by: Michael Neuling <mi...@neuling.org> Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- Changlog[v3]: - [Michael Ellerman] We don't need to disable/enable p

[PATCH v3 15/18] powerpc: Emulate paste instruction

. Cc: Aneesh Kumar K.V Signed-off-by: Michael Neuling Signed-off-by: Sukadev Bhattiprolu --- Changlog[v3]: - [Michael Ellerman] We don't need to disable/enable pagefaults when emulating paste; - [Michael Ellerman, Aneesh Kumar] Fix retval from emulate_paste() Edit

[PATCH v3 13/18] powerpc: Add support for setting SPRN_TIDR

-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> Signed-off-by: Philippe Bergheaud <fe...@linux.vnet.ibm.com> Signed-off-by: Christophe Lombard <clomb...@linux.vnet.ibm.com> --- Changelog[v3] - Merge changes with and address comments to Christophe's patch. (i.e d

[PATCH v3 13/18] powerpc: Add support for setting SPRN_TIDR

-by: Sukadev Bhattiprolu Signed-off-by: Philippe Bergheaud Signed-off-by: Christophe Lombard --- Changelog[v3] - Merge changes with and address comments to Christophe's patch. (i.e drop CONFIG_PPC_VAS; use CONFIG_PPC64; check CPU_ARCH_300 before setting TIDR). Defer following

[PATCH v3 02/18] powerpc/vas: Validate window credits

NX-842, the only user of VAS, sets the window credits to default values but VAS should check the credits against the possible max values. The VAS_WCREDS_MIN is not needed and can be dropped. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/platforms/power

[PATCH v3 02/18] powerpc/vas: Validate window credits

NX-842, the only user of VAS, sets the window credits to default values but VAS should check the credits against the possible max values. The VAS_WCREDS_MIN is not needed and can be dropped. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/platforms/powernv/vas-window.c | 6 ++ arch

[PATCH v3 16/18] powerpc/vas: Define vas_win_paste_addr()

into their address space and then use copy and paste instructions to submit the CRBs to the NX engine. Note that kernel drivers will use vas_paste_crb() directly and don't need this interface. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- arch/powerpc/include/asm

[PATCH v3 18/18] powerpc/vas: Add support for user receive window

Add support for user space receive window (for the Fast thread-wakeup coprocessor type) Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> --- Changelog[v3] - [Nick Piggin] Drop CP_ABORT since set_thread_uses_vas() does that now (in earlier patch) and add a

[PATCH v3 01/18] powerpc/vas: init missing fields from [rt]xattr

Initialize a few missing window context fields from the window attributes specified by the caller. These fields are currently set to their default values by the caller (NX-842), but would be good to apply them anyway. Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> ---

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