.
Compared to the v6 sent by Andrew Murray, the following changes have
been made in response to build errors/warnings:
* Inclusion of linux/of_address.h in of_pci.c as suggested by Michal
Simek to prevent compilation failures on Microblaze (and others) and his
ack.
* Use of externs
The pci_process_bridge_OF_ranges function, used to parse the ranges
property of a PCI host device, is found in both Microblaze and PowerPC
architectures. These implementations are nearly identical. This patch
moves this common code to a common place.
Signed-off-by: Andrew Murray andrew.mur
with powerpc and microblaze).
Signed-off-by: Andrew Murray andrew.mur...@arm.com
Signed-off-by: Liviu Dudau liviu.du...@arm.com
Signed-off-by: Thomas Petazzoni thomas.petazz...@free-electrons.com
Reviewed-by: Rob Herring rob.herr...@calxeda.com
Tested-by: Thomas Petazzoni thomas.petazz...@free
This patch converts the pci_load_of_ranges function to use the new common
of_pci_range_parser.
Signed-off-by: Andrew Murray andrew.mur...@arm.com
Signed-off-by: Liviu Dudau liviu.du...@arm.com
Reviewed-by: Rob Herring rob.herr...@calxeda.com
---
arch/mips/pci/pci.c | 50
On Tue, Apr 16, 2013 at 11:18:26AM +0100, Andrew Murray wrote:
The pci_process_bridge_OF_ranges function, used to parse the ranges
property of a PCI host device, is found in both Microblaze and PowerPC
architectures. These implementations are nearly identical. This patch
moves this common code
On Wed, Apr 17, 2013 at 04:42:48PM +0100, Linus Walleij wrote:
On Tue, Apr 16, 2013 at 12:18 PM, Andrew Murray andrew.mur...@arm.com wrote:
This patch converts the pci_load_of_ranges function to use the new common
of_pci_range_parser.
Signed-off-by: Andrew Murray andrew.mur...@arm.com
On Thu, Apr 18, 2013 at 02:44:01PM +0100, Grant Likely wrote:
On Tue, 16 Apr 2013 11:18:27 +0100, Andrew Murray andrew.mur...@arm.com
wrote:
This patch factors out common implementation patterns to reduce overall
kernel
code and provide a means for host bridge drivers to directly obtain
On Thu, Apr 18, 2013 at 02:45:35PM +0100, Grant Likely wrote:
On Tue, 16 Apr 2013 11:18:28 +0100, Andrew Murray andrew.mur...@arm.com
wrote:
This patch converts the pci_load_of_ranges function to use the new common
of_pci_range_parser.
Signed-off-by: Andrew Murray andrew.mur...@arm.com
On Thu, Apr 18, 2013 at 04:29:54PM +0100, Grant Likely wrote:
On Thu, Apr 18, 2013 at 3:24 PM, Andrew Murray andrew.mur...@arm.com wrote:
On Thu, Apr 18, 2013 at 02:44:01PM +0100, Grant Likely wrote:
On Tue, 16 Apr 2013 11:18:27 +0100, Andrew Murray andrew.mur...@arm.com
wrote
This patch converts the pci_load_of_ranges function to use the new common
of_pci_range_parser.
Signed-off-by: Andrew Murray andrew.mur...@arm.com
Signed-off-by: Liviu Dudau liviu.du...@arm.com
Signed-off-by: Gabor Juhos juh...@openwrt.org
Reviewed-by: Rob Herring rob.herr...@calxeda.com
Reviewed
on
PowerPC, x86_64 and MIPS.
Compared to the v7 sent by Andrew Murray, the following changes have been made
(please note that the first patch is unchanged from v7):
* Rename of_pci_range_parser to of_pci_range_parser_init and
of_pci_process_ranges to of_pci_range_parser_one as suggested by Grant
with powerpc and microblaze).
Signed-off-by: Andrew Murray andrew.mur...@arm.com
Signed-off-by: Liviu Dudau liviu.du...@arm.com
Signed-off-by: Thomas Petazzoni thomas.petazz...@free-electrons.com
Reviewed-by: Rob Herring rob.herr...@calxeda.com
Tested-by: Thomas Petazzoni thomas.petazz...@free
The pci_process_bridge_OF_ranges function, used to parse the ranges
property of a PCI host device, is found in both Microblaze and PowerPC
architectures. These implementations are nearly identical. This patch
moves this common code to a common place.
Signed-off-by: Andrew Murray andrew.mur
branch the drivers that depend on it
will need to be updated to reflect the new naming of functions as suggested by
Grant.
Thanks,
Andrew Murray
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On Thu, Apr 18, 2013 at 02:44:01PM +0100, Grant Likely wrote:
On Tue, 16 Apr 2013 11:18:27 +0100, Andrew Murray andrew.mur...@arm.com
wrote:
Acked-by: Grant Likely grant.lik...@secretlab.ca
But comments below...
I've updated the patchset (now v8) to reflect your feedback, after
such as pcibios_alloc|free_controller and
pcibios_setup_phb_resources type functions.
Andrew Murray (3):
powerpc: Move struct pci_controller to asm-generic
microblaze: Use asm-generic version of pci_controller
pci: Use common definations of INDIRECT_TYPE_*
arch/microblaze/include/asm/pci-bridge.h | 70
This patch moves struct pci_controller into asm-generic to allow
for use by other architectures thus reducing code duplication in
the kernel.
Signed-off-by: Andrew Murray andrew.mur...@arm.com
---
arch/powerpc/include/asm/pci-bridge.h | 87 +---
include/asm-generic
This patch removes struct pci_controller from Microblaze and instead
uses struct pci_controller from asm-generic.
Signed-off-by: Andrew Murray andrew.mur...@arm.com
---
arch/microblaze/include/asm/pci-bridge.h | 75 ++
include/asm-generic/pci-bridge.h |2
This patch unifies similar definations of INDIRECT_TYPE_* between
PowerPC and Microblaze.
Signed-off-by: Andrew Murray andrew.mur...@arm.com
---
arch/microblaze/include/asm/pci-bridge.h | 23 ---
arch/powerpc/include/asm/pci-bridge.h| 23 ---
arch
On Sun, May 05, 2013 at 03:41:49AM +0100, Benjamin Herrenschmidt wrote:
On Mon, 2013-04-22 at 11:41 +0100, Andrew Murray wrote:
The pci_process_bridge_OF_ranges function, used to parse the ranges
property of a PCI host device, is found in both Microblaze and PowerPC
architectures
with powerpc and microblaze).
Signed-off-by: Andrew Murray andrew.mur...@arm.com
Signed-off-by: Liviu Dudau liviu.du...@arm.com
Signed-off-by: Thomas Petazzoni thomas.petazz...@free-electrons.com
Reviewed-by: Rob Herring rob.herr...@calxeda.com
Tested-by: Thomas Petazzoni thomas.petazz...@free
on
PowerPC, x86_64, MIPS and Microblaze.
Compared to the v8 sent by Andrew Murray, the following changes have been made
(please note that the MIPS patch is unchanged from v8):
* Remove the unification of pci_process_bridge_OF_ranges between PowerPC and
Microblaze. Feedback from Bjorn and Benjamin
This patch converts the pci_load_of_ranges function to use the new common
of_pci_range_parser.
Signed-off-by: Andrew Murray andrew.mur...@arm.com
Signed-off-by: Liviu Dudau liviu.du...@arm.com
Signed-off-by: Gabor Juhos juh...@openwrt.org
Reviewed-by: Rob Herring rob.herr...@calxeda.com
Reviewed
This patch converts the pci_load_of_ranges function to use the new common
of_pci_range_parser.
Signed-off-by: Andrew Murray andrew.mur...@arm.com
Signed-off-by: Liviu Dudau liviu.du...@arm.com
---
arch/microblaze/pci/pci-common.c | 106 ++
1 files changed, 38
On 25 February 2014 13:25, Benjamin Herrenschmidt
b...@kernel.crashing.org wrote:
On Tue, 2014-02-25 at 06:32 +, Andrew Murray wrote:
This patch updates the implementation of pci_process_bridge_OF_ranges to use
the of_pci_range_parser helpers.
Signed-off-by: Andrew Murray amur...@embedded
. of_bus_pci_get_flags,
bus-count_cells).
I'm not just ready to post it - but can do before early next week if you can
wait.
Andrew Murray
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request
the obtained resources and pass them on (e.g. pci_add_resource_offset).
Signed-off-by: Andrew Murray andrew.mur...@arm.com
Signed-off-by: Liviu Dudau liviu.du...@arm.com
---
drivers/of/address.c | 53 +++-
include/linux/of_address.h |7
On Wed, Dec 12, 2012 at 01:34:24PM +, Thierry Reding wrote:
On Wed, Dec 12, 2012 at 12:19:12PM +, Andrew Murray wrote:
I've been working on a relatively architecture agnostic PCI host bridge
driver
and also wanted to avoid duplicating more generic DT parsing code for PCI
bindings
another patch for the typo and leave this patch with you for
working into your existing series.
Andrew Murray
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On Thu, Dec 13, 2012 at 10:03:18AM +, Thierry Reding wrote:
On Thu, Dec 13, 2012 at 09:45:43AM +, Andrew Murray wrote:
On Thu, Dec 13, 2012 at 09:13:33AM +, Thierry Reding wrote:
Hi Andrew,
I don't like iterator interfaces too much, but I can live with that.
Other than
On Thu, Dec 20, 2012 at 08:25:00AM +, Thierry Reding wrote:
On Wed, Dec 12, 2012 at 04:37:50PM +, Andrew Murray wrote:
[...]
diff --git a/drivers/of/address.c b/drivers/of/address.c
[...]
+ start = of_get_property(node, ranges, rlen);
+ if (start == NULL)
+ return
On Sat, Dec 15, 2012 at 01:06:41AM +, Grant Likely wrote:
On Wed, Dec 12, 2012 at 4:37 PM, Andrew Murray andrew.mur...@arm.com wrote:
DT bindings for PCI host bridges often use the ranges property to describe
memory and IO ranges - this binding tends to be the same across
architectures
Replace checking of perf event exclusion flags with perf macro.
Signed-off-by: Andrew Murray
---
arch/arm/mach-imx/mmdc.c | 8 +---
arch/arm/mm/cache-l2x0-pmu.c | 7 +--
2 files changed, 2 insertions(+), 13 deletions(-)
diff --git a/arch/arm/mach-imx/mmdc.c b/arch/arm/mach-imx
The armv7pmu driver doesn't support host/guest mode exclusion so
let's report this when set_event_filter is called with these
exclusion flags set.
Signed-off-by: Andrew Murray
---
arch/arm/kernel/perf_event_v7.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/kernel/perf_event_v7
Replace checking of perf event exclusion flags with perf macro.
This is a functional change as __hw_perf_event_init will now indicate
that it doesn't support exclude_host and exclude_guest event flags.
Signed-off-by: Andrew Murray
---
arch/alpha/kernel/perf_event.c | 4 +---
1 file changed, 1
in these files:
- drivers/perf/xgene_pmu.c
Signed-off-by: Andrew Murray
---
drivers/perf/arm-cci.c | 7 +--
drivers/perf/arm-ccn.c | 5 +
drivers/perf/arm_dsu_pmu.c | 7 +--
drivers/perf/arm_pmu.c | 9 +
drivers
/uncore.c
Signed-off-by: Andrew Murray
---
arch/x86/events/amd/ibs.c | 11 +--
arch/x86/events/amd/iommu.c| 3 +--
arch/x86/events/amd/power.c| 8 +---
arch/x86/events/amd/uncore.c | 3 +--
arch/x86/events/intel/cstate.c | 7 +--
arch/x86/events
Update design.txt to reflect the presence of the exclude_host
and exclude_guest perf flags.
Signed-off-by: Andrew Murray
---
tools/perf/design.txt | 4
1 file changed, 4 insertions(+)
diff --git a/tools/perf/design.txt b/tools/perf/design.txt
index a28dca2..7de7d83 100644
--- a/tools/perf
on registration.
All drivers touched by this patchset have been compile tested.
[1] https://lore.kernel.org/patchwork/patch/325116/
~
Andrew Murray (10):
perf/core: Add macro to test for event exclusion flags
arm: perf/core
Add a macro that tests if any of the perf event exclusion flags
are set on a given event.
Signed-off-by: Andrew Murray
---
include/linux/perf_event.h | 9 +
1 file changed, 9 insertions(+)
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 53c500f..89ee7fa
Replace checking of perf event exclusion flags with perf macro.
Signed-off-by: Andrew Murray
---
arch/powerpc/perf/hv-24x7.c | 7 +--
arch/powerpc/perf/hv-gpci.c | 7 +--
arch/powerpc/perf/imc-pmu.c | 14 ++
3 files changed, 4 insertions(+), 24 deletions(-)
diff --git
The fsl PMU driver doesn't support host/guest mode exclusion so
let's report this when event_init is called with these exclusion
flags set.
Signed-off-by: Andrew Murray
---
arch/powerpc/perf/core-fsl-emb.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/perf/core-fsl-emb.c b
Now that perf_flags is not used we remove it.
Signed-off-by: Andrew Murray
---
include/uapi/linux/perf_event.h | 2 --
tools/include/uapi/linux/perf_event.h | 2 --
2 files changed, 4 deletions(-)
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index
On Wed, Dec 12, 2018 at 09:07:42AM +0100, Christoffer Dall wrote:
> On Tue, Dec 11, 2018 at 01:59:03PM +0000, Andrew Murray wrote:
> > On Tue, Dec 11, 2018 at 10:06:53PM +1100, Michael Ellerman wrote:
> > > [ Reviving old thread. ]
> > >
> > > Andrew Murray
On Fri, Dec 07, 2018 at 05:25:17PM +, Will Deacon wrote:
> On Thu, Dec 06, 2018 at 04:47:17PM +0000, Andrew Murray wrote:
> > Many PMU drivers do not have the capability to exclude counting events
> > that occur in specific contexts such as idle, kernel, guest, etc. These
>
On Tue, Dec 11, 2018 at 10:06:53PM +1100, Michael Ellerman wrote:
> [ Reviving old thread. ]
>
> Andrew Murray writes:
> > On Tue, Nov 20, 2018 at 10:31:36PM +1100, Michael Ellerman wrote:
> >> Andrew Murray writes:
> >>
> >> > Update design.tx
event_has_exclude_flags to event_has_any_exclude_flag and
update commit log to reflect it's a function
Andrew Murray (12):
perf/doc: update design.txt for exclude_{host|guest} flags
perf/core: add function to test for event exclusion flags
perf/core: add PERF_PMU_CAP_NO_EXCLUDE for exclusion
Update design.txt to reflect the presence of the exclude_host
and exclude_guest perf flags.
Signed-off-by: Andrew Murray
---
tools/perf/design.txt | 4
1 file changed, 4 insertions(+)
diff --git a/tools/perf/design.txt b/tools/perf/design.txt
index a28dca2..0453ba2 100644
--- a/tools/perf
inconsistent.
Let's instead allow PMU drivers to advertise their inability to exclude
based on context via a new capability: PERF_PMU_CAP_NO_EXCLUDE. This
allows the perf core to reject requests for exclusion events where
there is no support in the PMU.
Signed-off-by: Andrew Murray
---
include/linux
are set.
Signed-off-by: Andrew Murray
---
drivers/perf/arm_pmu.c | 15 +--
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index 7f01f6f..ea69067 100644
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -357,13 +357,6
Add a function that tests if any of the perf event exclusion flags
are set on a given event.
Signed-off-by: Andrew Murray
---
include/linux/perf_event.h | 9 +
1 file changed, 9 insertions(+)
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 53c500f..b2e806f
-by: Andrew Murray
---
arch/alpha/kernel/perf_event.c | 7 +--
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/alpha/kernel/perf_event.c b/arch/alpha/kernel/perf_event.c
index 5613aa37..4341ccf 100644
--- a/arch/alpha/kernel/perf_event.c
+++ b/arch/alpha/kernel/perf_event.c
For drivers that do not support context exclusion let's advertise the
PERF_PMU_CAP_NO_EXCLUDE capability. This ensures that perf will
prevent us from handling events where any exclusion flags are set.
Let's also remove the now unnecessary check for exclusion flags.
Signed-off-by: Andrew Murray
For drivers that do not support context exclusion let's advertise the
PERF_PMU_CAP_NO_EXCLUDE capability. This ensures that perf will
prevent us from handling events where any exclusion flags are set.
Let's also remove the now unnecessary check for exclusion flags.
Signed-off-by: Andrew Murray
the perf_event_open system call with fallback
event attributes that do not fail.
Signed-off-by: Andrew Murray
---
drivers/perf/qcom_l2_pmu.c | 9 +
drivers/perf/qcom_l3_pmu.c | 8 +---
drivers/perf/xgene_pmu.c | 6 +-
3 files changed, 3 insertions(+), 20 deletions(-)
diff --git
For PowerPC PMUs that do not support context exclusion let's
advertise the PERF_PMU_CAP_NO_EXCLUDE capability. This ensures that
perf will prevent us from handling events where any exclusion flags
are set. Let's also remove the now unnecessary check for exclusion
flags.
Signed-off-by: Andrew
For drivers that do not support context exclusion let's advertise the
PERF_PMU_CAP_NOEXCLUDE capability. This ensures that perf will
prevent us from handling events where any exclusion flags are set.
Let's also remove the now unnecessary check for exclusion flags.
Signed-off-by: Andrew Murray
/iommu and amd/uncore will now also
indicate that they do not support exclude_{hv|idle} and intel/uncore
that it does not support exclude_{guest|host}.
Signed-off-by: Andrew Murray
---
arch/x86/events/amd/iommu.c| 6 +-
arch/x86/events/amd/uncore.c | 7 ++-
arch/x86/events/intel
Now that perf_flags is not used we remove it.
Signed-off-by: Andrew Murray
---
include/uapi/linux/perf_event.h | 2 --
tools/include/uapi/linux/perf_event.h | 2 --
2 files changed, 4 deletions(-)
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index
On Tue, Nov 20, 2018 at 10:28:34PM +1100, Michael Ellerman wrote:
> Andrew Murray writes:
>
> > Add a macro that tests if any of the perf event exclusion flags
> > are set on a given event.
> >
> > Signed-off-by: Andrew Murray
> > ---
> > include/li
On Mon, Nov 19, 2018 at 04:03:52PM +, Mark Rutland wrote:
> On Fri, Nov 16, 2018 at 10:24:12AM +0000, Andrew Murray wrote:
> > Replace checking of perf event exclusion flags with perf macro.
> >
> > This is a functional change as exclude_host and exclude_guest are added
-by: Andrew Murray
---
arch/alpha/kernel/perf_event.c | 6 --
1 file changed, 6 deletions(-)
diff --git a/arch/alpha/kernel/perf_event.c b/arch/alpha/kernel/perf_event.c
index 5613aa37..5c17077 100644
--- a/arch/alpha/kernel/perf_event.c
+++ b/arch/alpha/kernel/perf_event.c
@@ -630,12 +630,6 @@ static
The ARC PMU has the capability to exclude events based on
context. Let's advertise that we support the
PERF_PMU_CAP_EXCLUDE capability to ensure that perf doesn't
prevent us from handling events where any exclusion flags are
set.
Signed-off-by: Andrew Murray
---
arch/arc/kernel/perf_event.c | 1
Update design.txt to reflect the presence of the exclude_host
and exclude_guest perf flags.
Signed-off-by: Andrew Murray
---
tools/perf/design.txt | 4
1 file changed, 4 insertions(+)
diff --git a/tools/perf/design.txt b/tools/perf/design.txt
index a28dca2..5b2b23b 100644
--- a/tools/perf
to reflect it's a function
Andrew Murray (20):
perf/doc: update design.txt for exclude_{host|guest} flags
perf/core: add function to test for event exclusion flags
perf/core: add PERF_PMU_CAP_EXCLUDE for exclusion capable PMUs
perf/hw_breakpoint: perf/core: advertise PMU exclusion capability
Add a function that tests if any of the perf event exclusion flags
are set on a given event.
Signed-off-by: Andrew Murray
---
include/linux/perf_event.h | 9 +
1 file changed, 9 insertions(+)
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 53c500f..b2e806f
inconsistent.
Let's instead allow PMU drivers to advertise their ability to exclude
based on context via a new capability: PERF_PMU_CAP_EXCLUDE. This
allows the perf core to reject requests for exclusion events where
there is no support in the PMU.
Signed-off-by: Andrew Murray
---
include/linux
The breakpoint PMU has the capability to exclude kernel contexts,
let's advertise that we support the PERF_PMU_CAP_EXCLUDE
capability so that perf doesn't prevent us from handling events
with any exclusion flags set.
Signed-off-by: Andrew Murray
---
kernel/events/hw_breakpoint.c | 2 ++
1 file
For drivers that do not support context exclusion we do not
advertise the PERF_PMU_CAP_EXCLUDE capability. This ensures that
perf will prevent us from handling events where any exclusion
flags are set. Let's remove the now unnecessary check for
exclusion flags.
Signed-off-by: Andrew Murray
are set.
Signed-off-by: Andrew Murray
---
drivers/perf/arm_pmu.c | 15 +--
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index 7f01f6f..4409035 100644
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -357,13
On Thu, Nov 22, 2018 at 01:26:37PM +0100, Peter Zijlstra wrote:
> On Thu, Nov 22, 2018 at 12:21:43PM +0000, Andrew Murray wrote:
> > On Mon, Nov 19, 2018 at 02:08:00PM +0100, Peter Zijlstra wrote:
>
> > > diff --git a/kernel/events/core.c b/kernel/events/core.c
>
On Mon, Nov 19, 2018 at 02:08:00PM +0100, Peter Zijlstra wrote:
> On Fri, Nov 16, 2018 at 10:24:03AM +0000, Andrew Murray wrote:
> > Many PMU drivers do not have the capability to exclude counting events
> > that occur in specific contexts such as idle, kernel, guest, etc. Th
On Tue, Nov 20, 2018 at 10:31:36PM +1100, Michael Ellerman wrote:
> Andrew Murray writes:
>
> > Update design.txt to reflect the presence of the exclude_host
> > and exclude_guest perf flags.
> >
> > Signed-off-by: Andrew Murray
> > ---
> > tools/perf/
For PowerPC PMUs that have the capability to exclude events
based on context. Let's advertise that we support the
PERF_PMU_CAP_EXCLUDE capability to ensure that perf doesn't
prevent us from handling events where any exclusion flags are
set.
Signed-off-by: Andrew Murray
---
arch/powerpc/perf
and amd/uncore will now
also indicate that they do not support exclude_{hv|idle} and
intel/uncore that it does not support exclude_{guest|host}.
Signed-off-by: Andrew Murray
---
arch/x86/events/amd/iommu.c| 5 -
arch/x86/events/amd/uncore.c | 5 -
arch/x86/events/intel/uncore.c | 8
The arm_pse PMU has the capability to exclude events based on
context. Let's advertise that we support the PERF_PMU_CAP_EXCLUDE
capability to ensure that perf doesn't prevent us from handling
events where any exclusion flags are set.
Signed-off-by: Andrew Murray
---
drivers/perf/arm_spe_pmu.c
The s390 cpum_cf and cpum_sf PMUs have the capability to exclude
events based on context. Let's advertise that we support the
PERF_PMU_CAP_EXCLUDE capability to ensure that perf doesn't
prevent us from handling events where any exclusion flags are set.
Signed-off-by: Andrew Murray
---
arch/s390
For PMUs that have the capability to exclude events based
on context. Let's advertise that we support the
PERF_PMU_CAP_EXCLUDE capability to ensure that perf doesn't
prevent us from handling events where any exclusion flags
are set.
Signed-off-by: Andrew Murray
---
arch/x86/events/core.c
The MIPS PMU has the capability to exclude events based on
context. Let's advertise that we support the PERF_PMU_CAP_EXCLUDE
capability to ensure that perf doesn't prevent us from handling
events where any exclusion flags are set.
Signed-off-by: Andrew Murray
---
arch/mips/kernel
For PowerPC PMUs that do not support context exclusion we do not
advertise the PERF_PMU_CAP_EXCLUDE capability. This ensures that
perf will prevent us from handling events where any exclusion
flags are set. Let's remove the now unnecessary check for exclusion
flags.
Signed-off-by: Andrew Murray
On Mon, Nov 26, 2018 at 02:10:24PM +, Robin Murphy wrote:
> Hi Andrew,
>
> On 26/11/2018 11:12, Andrew Murray wrote:
> > Many PMU drivers do not have the capability to exclude counting events
> > that occur in specific contexts such as idle, kernel, guest, etc. These
For drivers that do not support context exclusion we do not
advertise the PERF_PMU_CAP_EXCLUDE capability. This ensures
that perf will prevent us from handling events where any exclusion
flags are set. Let's remove the now unnecessary check for
exclusion flags.
Signed-off-by: Andrew Murray
For drivers that do not support context exclusion we do not
advertise the PERF_PMU_CAP_EXCLUDE capability. This ensures
that perf will prevent us from handling events where any exclusion
flags are set. Let's remove the now unnecessary check for
exclusion flags.
Signed-off-by: Andrew Murray
the perf_event_open system call with fallback
event attributes that do not fail.
Signed-off-by: Andrew Murray
---
drivers/perf/qcom_l2_pmu.c | 8
drivers/perf/qcom_l3_pmu.c | 7 ---
drivers/perf/xgene_pmu.c | 5 -
3 files changed, 20 deletions(-)
diff --git a/drivers/perf/qcom_l2_pmu.c
The SPARC PMU has the capability to exclude events based on context
- let's advertise that we support the PERF_PMU_CAP_EXCLUDE
capability to ensure that perf doesn't prevent us from handling
events where any exclusion flags are set.
Signed-off-by: Andrew Murray
---
arch/sparc/kernel
Now that perf_flags is not used we remove it.
Signed-off-by: Andrew Murray
---
include/uapi/linux/perf_event.h | 2 --
tools/include/uapi/linux/perf_event.h | 2 --
2 files changed, 4 deletions(-)
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index
Update design.txt to reflect the presence of the exclude_host
and exclude_guest perf flags.
Signed-off-by: Andrew Murray
---
tools/perf/design.txt | 4
1 file changed, 4 insertions(+)
diff --git a/tools/perf/design.txt b/tools/perf/design.txt
index a28dca2..0453ba2 100644
--- a/tools/perf
-by: Andrew Murray
---
arch/alpha/kernel/perf_event.c | 7 +--
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/alpha/kernel/perf_event.c b/arch/alpha/kernel/perf_event.c
index 5613aa37..4341ccf 100644
--- a/arch/alpha/kernel/perf_event.c
+++ b/arch/alpha/kernel/perf_event.c
For drivers that do not support context exclusion let's advertise the
PERF_PMU_CAP_NO_EXCLUDE capability. This ensures that perf will
prevent us from handling events where any exclusion flags are set.
Let's also remove the now unnecessary check for exclusion flags.
Signed-off-by: Andrew Murray
For drivers that do not support context exclusion let's advertise the
PERF_PMU_CAP_NO_EXCLUDE capability. This ensures that perf will
prevent us from handling events where any exclusion flags are set.
Let's also remove the now unnecessary check for exclusion flags.
Signed-off-by: Andrew Murray
the perf_event_open system call with fallback
event attributes that do not fail.
Signed-off-by: Andrew Murray
Acked-by: Will Deacon
---
drivers/perf/qcom_l2_pmu.c | 9 +
drivers/perf/qcom_l3_pmu.c | 8 +---
drivers/perf/xgene_pmu.c | 6 +-
3 files changed, 3 insertions(+), 20
Now that perf_flags is not used we remove it.
Signed-off-by: Andrew Murray
---
include/uapi/linux/perf_event.h | 2 --
tools/include/uapi/linux/perf_event.h | 2 --
2 files changed, 4 deletions(-)
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index
additional information to tools/perf/design.txt
- Rename event_has_exclude_flags to event_has_any_exclude_flag and
update commit log to reflect it's a function
Andrew Murray (12):
perf/doc: update design.txt for exclude_{host|guest} flags
perf/core: add function to test for event exclusion flags
inconsistent.
Let's instead allow PMU drivers to advertise their inability to exclude
based on context via a new capability: PERF_PMU_CAP_NO_EXCLUDE. This
allows the perf core to reject requests for exclusion events where
there is no support in the PMU.
Signed-off-by: Andrew Murray
---
include/linux
are set.
Where an ARM PMU driver has the set_event_filter function implemented,
we rely on it to perform exclusion checks. At present some of these
functions do not test for all of the available exclude flags.
Signed-off-by: Andrew Murray
Acked-by: Will Deacon
---
drivers/perf/arm_pmu.c | 15
For PowerPC PMUs that do not support context exclusion let's
advertise the PERF_PMU_CAP_NO_EXCLUDE capability. This ensures that
perf will prevent us from handling events where any exclusion flags
are set. Let's also remove the now unnecessary check for exclusion
flags.
Signed-off-by: Andrew
at least one exclude flag won't have the
PERF_PMU_CAP_NOEXCLUDE capability set - these PMU drivers should still
check and fail on unsupported exclude flags. These missing tests are
not added in this patch.
Signed-off-by: Andrew Murray
---
arch/x86/events/amd/ibs.c | 13 +
arch/x86
Add a function that tests if any of the perf event exclusion flags
are set on a given event.
Signed-off-by: Andrew Murray
---
include/linux/perf_event.h | 9 +
1 file changed, 9 insertions(+)
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 1d5c551..54a78d2
/iommu and amd/uncore will now also
indicate that they do not support exclude_{hv|idle} and intel/uncore
that it does not support exclude_{guest|host}.
Signed-off-by: Andrew Murray
---
arch/x86/events/amd/iommu.c| 6 +-
arch/x86/events/amd/uncore.c | 7 ++-
arch/x86/events/intel
the perf_event_open system call with fallback
event attributes that do not fail.
Signed-off-by: Andrew Murray
Acked-by: Will Deacon
---
drivers/perf/qcom_l2_pmu.c | 9 +
drivers/perf/qcom_l3_pmu.c | 8 +---
drivers/perf/xgene_pmu.c | 6 +-
3 files changed, 3 insertions(+), 20
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