Niklas Cassel [Wed, 21 Sep 2022 15:57:52 +0000 (17:57 +0200)]
ata: libata-eh: avoid needless hard reset when revalidating link
Performing a revalidation on a AHCI controller supporting LPM,
while using a lpm mode of e.g. med_power_with_dip (hipm + dipm) or
medium_power (hipm), will currently always lead to a hard reset.
The expected behavior is that a hard reset is only performed when
revalidate fails, because the properties of the drive has changed.
A revalidate performed after e.g. a NCQ error, or such a simple thing
as disabling write-caching (hdparm -W 0 /dev/sda), should succeed on
the first try (and should therefore not cause the link to be reset).
This unwarranted hard reset happens because ata_phys_link_offline()
returns true for a link that is in deep sleep. Thus the call to
ata_phys_link_offline() in ata_eh_revalidate_and_attach() will cause
the revalidation to fail, which causes ata_eh_handle_dev_fail() to be
called, which will set ehc->i.action |= ATA_EH_RESET, such that the
link is reset before retrying revalidation.
When the link is reset, the link is reestablished, so when
ata_eh_revalidate_and_attach() is called the second time, directly
after the link has been reset, ata_phys_link_offline() will return
false, and the revalidation will succeed.
Looking at "8.3.1.3 HBA Initiated" in the AHCI 1.3.1 specification,
it is clear the when host software writes a new command to memory,
by setting a bit in the PxCI/PxSACT HBA port registers, the HBA will
automatically bring back the link before sending out the Command FIS.
However, simply reading a SCR (like ata_phys_link_offline() does),
will not cause the HBA to automatically bring back the link.
As long as hipm is enabled, the HBA will put an idle link into deep
sleep. Avoid this needless hard reset on revalidation by temporarily
disabling hipm, by setting the LPM mode to ATA_LPM_MAX_POWER.
After revalidation is complete, ata_eh_recover() will restore the link
policy by setting the LPM mode to ap->target_lpm_policy.
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Niklas Cassel [Fri, 16 Sep 2022 12:28:37 +0000 (14:28 +0200)]
ata: libata: drop superfluous ata_eh_analyze_tf() parameter
The parameter can easily be derived from struct ata_queued_cmd.
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Niklas Cassel [Fri, 16 Sep 2022 12:28:36 +0000 (14:28 +0200)]
ata: libata: drop superfluous ata_eh_request_sense() parameter
The parameter can easily be derived from struct ata_queued_cmd.
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Niklas Cassel [Fri, 16 Sep 2022 12:28:35 +0000 (14:28 +0200)]
ata: fix ata_id_has_dipm()
ACS-5 section
7.13.6.36 Word 78: Serial ATA features supported
states that:
If word 76 is not 0000h or FFFFh, word 78 reports the features supported
by the device. If this word is not supported, the word shall be cleared
to zero.
(This text also exists in really old ACS standards, e.g. ACS-3.)
The problem with ata_id_has_dipm() is that the while it performs a
check against 0 and 0xffff, it performs the check against
ATA_ID_FEATURE_SUPP (word 78), the same word where the feature bit
is stored.
Fix this by performing the check against ATA_ID_SATA_CAPABILITY
(word 76), like required by the spec. The feature bit check itself
is of course still performed against ATA_ID_FEATURE_SUPP (word 78).
Additionally, move the macro to the other ATA_ID_FEATURE_SUPP macros
(which already have this check), thus making it more likely that the
next ATA_ID_FEATURE_SUPP macro that is added will include this check.
Fixes:
ca77329fb713 ("[libata] Link power management infrastructure")
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Niklas Cassel [Fri, 16 Sep 2022 12:28:34 +0000 (14:28 +0200)]
ata: fix ata_id_has_ncq_autosense()
ACS-5 section
7.13.6.36 Word 78: Serial ATA features supported
states that:
If word 76 is not 0000h or FFFFh, word 78 reports the features supported
by the device. If this word is not supported, the word shall be cleared
to zero.
(This text also exists in really old ACS standards, e.g. ACS-3.)
Additionally, move the macro to the other ATA_ID_FEATURE_SUPP macros
(which already have this check), thus making it more likely that the
next ATA_ID_FEATURE_SUPP macro that is added will include this check.
Fixes:
5b01e4b9efa0 ("libata: Implement NCQ autosense")
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Niklas Cassel [Fri, 16 Sep 2022 12:28:33 +0000 (14:28 +0200)]
ata: fix ata_id_has_devslp()
ACS-5 section
7.13.6.36 Word 78: Serial ATA features supported
states that:
If word 76 is not 0000h or FFFFh, word 78 reports the features supported
by the device. If this word is not supported, the word shall be cleared
to zero.
(This text also exists in really old ACS standards, e.g. ACS-3.)
Additionally, move the macro to the other ATA_ID_FEATURE_SUPP macros
(which already have this check), thus making it more likely that the
next ATA_ID_FEATURE_SUPP macro that is added will include this check.
Fixes:
65fe1f0f66a5 ("ahci: implement aggressive SATA device sleep support")
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Niklas Cassel [Fri, 16 Sep 2022 12:28:32 +0000 (14:28 +0200)]
ata: fix ata_id_sense_reporting_enabled() and ata_id_has_sense_reporting()
ACS-5 section
7.13.6.41 Words 85..87, 120: Commands and feature sets supported or enabled
states that:
If bit 15 of word 86 is set to one, bit 14 of word 119 is set to one,
and bit 15 of word 119 is cleared to zero, then word 119 is valid.
If bit 15 of word 86 is set to one, bit 14 of word 120 is set to one,
and bit 15 of word 120 is cleared to zero, then word 120 is valid.
(This text also exists in really old ACS standards, e.g. ACS-3.)
Currently, ata_id_sense_reporting_enabled() and
ata_id_has_sense_reporting() both check bit 15 of word 86,
but neither of them check that bit 14 of word 119 is set to one,
or that bit 15 of word 119 is cleared to zero.
Additionally, make ata_id_sense_reporting_enabled() return false
if !ata_id_has_sense_reporting(), similar to how e.g.
ata_id_flush_ext_enabled() returns false if !ata_id_has_flush_ext().
Fixes:
e87fd28cf9a2 ("libata: Implement support for sense data reporting")
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
ye xingchen [Tue, 20 Sep 2022 06:29:29 +0000 (06:29 +0000)]
ata: libata-eh: Remove the unneeded result variable
Return the value ata_port_abort() directly instead of storing it in
another redundant variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Damien Le Moal [Mon, 19 Sep 2022 23:52:02 +0000 (08:52 +0900)]
ata: ahci_st: Enable compile test
Enable compiling the ahci_st driver when COMPILE_TEST is enabled.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Damien Le Moal [Mon, 19 Sep 2022 23:43:07 +0000 (08:43 +0900)]
ata: ahci_st: Fix compilation warning
Remove the unused variable dev in st_ahci_probe() to avoid compilation
warning and build failures where CONFIG_WERROR is enabled.
Fixes:
3f74cd046fbe ("ata: libahci_platform: Parse ports-implemented property in resources getter")
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:21 +0000 (22:36 +0300)]
MAINTAINERS: Add maintainers for DWC AHCI SATA driver
Add myself as a maintainer of the new DWC AHCI SATA driver and
its DT-bindings schema.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:20 +0000 (22:36 +0300)]
ata: ahci-dwc: Add Baikal-T1 AHCI SATA interface support
It's almost fully compatible DWC AHCI SATA IP-core derivative except the
reference clocks source, which need to be very carefully selected. In
particular the DWC AHCI SATA PHY can be clocked either from the pads
ref_pad_clk_{m,p} or from the internal wires ref_alt_clk_{m,n}. In the
later case the clock signal is generated from the Baikal-T1 CCU SATA PLL.
The clocks source is selected by means of the ref_use_pad wire connected
to the CCU SATA reference clock CSR.
In normal situation it would be much more handy to use the internal
reference clock source, but alas we haven't managed to make the AHCI
controller working well with it so far. So it's preferable to have the
controller clocked from the external clock generator and fallback to the
internal clock source only as a last resort. Other than that the
controller is full compatible with the DWC AHCI SATA IP-core.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:19 +0000 (22:36 +0300)]
ata: ahci-dwc: Add platform-specific quirks support
Some DWC AHCI SATA IP-core derivatives require to perform small platform
or IP-core specific setups. They are too small to be placed in a dedicated
driver. It's just much easier to have a set of quirks for them right in
the DWC AHCI driver code. Since we are about to add such platform support,
as a pre-requisite we introduce a platform-data based DWC AHCI quirks API.
The platform data can be used to define the flags passed to the
ahci_platform_get_resources() method, additional AHCI host-flags and a set
of callbacks to initialize, re-initialize and clear the platform settings.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:18 +0000 (22:36 +0300)]
dt-bindings: ata: ahci: Add Baikal-T1 AHCI SATA controller DT schema
Baikal-T1 AHCI controller is based on the DWC AHCI SATA IP-core v4.10a
with the next specific settings: two SATA ports, cascaded CSR access based
on two clock domains (APB and AXI), selectable source of the reference
clock (though stable work is currently available from the external source
only), two reset lanes for the application and SATA ports domains. Other
than that the device is fully compatible with the generic DWC AHCI SATA
bindings.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:17 +0000 (22:36 +0300)]
ata: ahci: Add DWC AHCI SATA controller support
Synopsys AHCI SATA controller can work pretty under with the generic
AHCI-platform driver control. But there are vendor-specific peculiarities
which can tune the device performance up and which may need to be fixed up
for proper device functioning. In addition some DWC AHCI-based controllers
may require small platform-specific fixups, so adding them in the generic
AHCI driver would have ruined the code simplicity. Shortly speaking in
order to keep the generic AHCI-platform code clean and have DWC AHCI
SATA-specific features supported we suggest to add a dedicated DWC AHCI
SATA device driver. Aside with the standard AHCI-platform resources
getting, enabling/disabling and the controller registration the new driver
performs the next actions.
First of all there is a way to verify whether the HBA/ports capabilities
activated in OF are correct. Almost all features availability is reflected
in the vendor-specific parameters registers. So the DWC AHCI driver does
the capabilities sanity check based on the corresponding fields state.
Secondly if either the Command Completion Coalescing or the Device Sleep
feature is enabled the DWC AHCI-specific internal 1ms timer must be fixed
in accordance with the application clock signal frequency. In particular
the timer value must be set to be Fapp * 1000. Normally the SoC designers
pre-configure the TIMER1MS register to contain a correct value by default.
But the platforms can support the application clock rate change. If that
happens the 1ms timer value must be accordingly updated otherwise the
dependent features won't work as expected. In the DWC AHCI driver we
suggest to rely on the "aclk" reference clock rate to set the timer
interval up. That clock source is supposed to be the AHCI SATA application
clock in accordance with the DT bindings.
Finally DWC AHCI SATA controller AXI/AHB bus DMA-engine can be tuned up to
transfer up to 1024 * FIFO words at a time by setting the Tx/Rx
transaction size in the DMA control register. The maximum value depends on
the DMA data bus and AXI/AHB bus maximum burst length. In most of the
cases it's better to set the maximum possible value to reach the best AHCI
SATA controller performance. But sometimes in order to improve the system
interconnect responsiveness, transferring in smaller data chunks may be
more preferable. For such cases and for the case when the default value
doesn't provide the best DMA bus performance we suggest to use the new
HBA-port specific DT-properties "snps,{tx,rx}-ts-max" to tune the DMA
transactions size up.
After all the settings denoted above are handled the DWC AHCI SATA driver
proceeds further with the standard AHCI-platform host initializations.
Note since DWC AHCI controller is now have a dedicated driver we can
discard the corresponding compatible string from the ahci-platform.c
module. The same concerns "snps,spear-ahci" compatible string, which is
also based on the DWC AHCI IP-core.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:16 +0000 (22:36 +0300)]
ata: libahci_platform: Add function returning a clock-handle by id
Since all the clocks are retrieved by the method
ahci_platform_get_resources() there is no need for the LLD (glue) drivers
to be looking for some particular of them in the kernel clocks table
again. Instead we suggest to add a simple method returning a
device-specific clock with passed connection ID if it is managed to be
found. Otherwise the function will return NULL. Thus the glue-drivers
won't need to either manually touching the hpriv->clks array or calling
clk_get()-friends. The AHCI platform drivers will be able to use the new
function right after the ahci_platform_get_resources() method invocation
and up to the device removal.
Note the method is left unused here, but will be utilized in the framework
of the DWC AHCI SATA driver being added in the next commit.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:15 +0000 (22:36 +0300)]
dt-bindings: ata: ahci: Add DWC AHCI SATA controller DT schema
Synopsys AHCI SATA controller is mainly compatible with the generic AHCI
SATA controller except a few peculiarities and the platform environment
requirements. In particular it can have at least two reference clocks to
feed up its AHB/AXI interface and SATA PHYs domain and at least one reset
control for the application clock domain. In addition to that the DMA
interface of each port can be tuned up to work with the predefined maximum
data chunk size. Note unlike generic AHCI controller DWC AHCI can't have
more than 8 ports. All of that is reflected in the new DWC AHCI SATA
device DT binding.
Note the DWC AHCI SATA controller DT-schema has been created in a way so
to be reused for the vendor-specific DT-schemas (see for example the
"snps,dwc-ahci" compatible string binding). One of which we are about to
introduce.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:14 +0000 (22:36 +0300)]
ata: ahci: Introduce firmware-specific caps initialization
There are systems with no BIOS or comprehensive embedded firmware which
could be able to properly initialize the SATA AHCI controller
platform-specific capabilities. In that case a good alternative to having
a clever bootloader is to create a device tree node with the properties
well describing all the AHCI-related platform specifics. All the settings
which are normally detected and marked as available in the HBA and its
ports capabilities fields [1] could be defined in the platform DTB by
means of a set of the dedicated properties. Such approach perfectly fits
to the DTB-philosophy - to provide hardware/platform description.
So here we suggest to extend the SATA AHCI device tree bindings with two
additional DT-properties:
1) "hba-cap" - HBA platform generic capabilities like:
- SSS - Staggered Spin-up support.
- SMPS - Mechanical Presence Switch support.
2) "hba-port-cap" - HBA platform port capabilities like:
- HPCP - Hot Plug Capable Port.
- MPSP - Mechanical Presence Switch Attached to Port.
- CPD - Cold Presence Detection.
- ESP - External SATA Port.
- FBSCP - FIS-based Switching Capable Port.
All of these capabilities require to have a corresponding hardware
configuration. Thus it's ok to have them defined in DTB.
Even though the driver currently takes into account the state of the ESP
and FBSCP flags state only, there is nothing wrong with having all of them
supported by the generic AHCI library in order to have a complete OF-based
platform-capabilities initialization procedure. These properties will be
parsed in the ahci_platform_get_resources() method and their values will
be stored in the saved_* fields of the ahci_host_priv structure, which in
its turn then will be used to restore the H.CAP, H.PI and P#.CMD
capability fields on device init and after HBA reset.
Please note this modification concerns the HW-init HBA and its ports flags
only, which are by specification [1] are supposed to be initialized by the
BIOS/platform firmware/expansion ROM and which are normally declared in
the one-time-writable-after-reset register fields. Even though these flags
aren't supposed to be cleared after HBA reset some AHCI instances may
violate that rule so we still need to perform the fields resetting after
each reset. Luckily the corresponding functionality has already been
partly implemented in the framework of the ahci_save_initial_config() and
ahci_restore_initial_config() methods.
[1] Serial ATA AHCI 1.3.1 Specification, p. 103
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:13 +0000 (22:36 +0300)]
ata: ahci: Convert __ahci_port_base to accepting hpriv as arguments
The port base address may be required even before the ata_host instance is
initialized and activated, for instance in the ahci_save_initial_config()
method which we are about to update (consider this modification as a
preparation for that one). Seeing the __ahci_port_base() function isn't
used much it's the best candidate to provide the required functionality.
So let's convert it to accepting the ahci_host_priv structure pointer.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:12 +0000 (22:36 +0300)]
ata: libahci: Don't read AHCI version twice in the save-config method
There is no point in reading the AHCI version all over in the tail of the
ahci_save_initial_config() method. That register is RO and doesn't change
its value even after reset. So just reuse the data, which has already been
read from there earlier in the head of the function.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:11 +0000 (22:36 +0300)]
ata: libahci: Discard redundant force_port_map parameter
Currently there are four port-map-related fields declared in the
ahci_host_priv structure and used to setup the HBA ports mapping. First
the ports-mapping is read from the PI register and immediately stored in
the saved_port_map field. If forced_port_map is initialized with non-zero
value then its value will have greater priority over the value read from
PI, thus it will override the saved_port_map field. That value will be
then masked by a non-zero mask_port_map field and after some sanity checks
it will be stored in the ahci_host_priv.port_map field as a final port
mapping.
As you can see the logic is a bit too complicated for such a simple task.
We can freely get rid from at least one of the fields with no change to
the implemented semantic. The force_port_map field can be replaced with
taking non-zero saved_port_map value into account. So if saved_port_map is
pre-initialized by the low level drivers (platform drivers) then it will
have greater priority over the value read from PI register and will be
used as actual HBA ports mapping later on. Thus the ports map forcing task
will be just transferred from force_port_map to the saved_port_map field.
This modification will perfectly fit into the feature of having OF-based
initialization of the HW-init HBA CSR fields we are about to introduce in
the next commit.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:10 +0000 (22:36 +0300)]
ata: libahci: Extend port-cmd flags set with port capabilities
Currently not all of the Port-specific capabilities listed in the
PORT_CMD-enumeration. Let's extend that set with the Cold Presence
Detection and Mechanical Presence Switch attached to the Port flags [1] so
to closeup the set of the platform-specific port-capabilities flags. Note
these flags are supposed to be set by the platform firmware if there is
one. Alternatively as we are about to do they can be set by means of the
OF properties.
While at it replace PORT_IRQ_DEV_ILCK with PORT_IRQ_DMPS and fix the
comment there. In accordance with [2] that IRQ flag is supposed to
indicate the state of the signal coming from the Mechanical Presence
Switch.
[1] Serial ATA AHCI 1.3.1 Specification, p.27
[2] Serial ATA AHCI 1.3.1 Specification, p.24, p.88
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:09 +0000 (22:36 +0300)]
dt-bindings: ata: ahci: Add platform capability properties
In case if the platform doesn't have BIOS or a comprehensive firmware
installed then the HBA capability flags will be left uninitialized. As a
good alternative we suggest to define the DT-properties with the AHCI
platform capabilities describing all the HW-init flags of the
corresponding capability register. Luckily there aren't too many of them.
SSS - Staggered Spin-up support and MPS - Mechanical Presence Switch
support determine the corresponding feature availability for the whole HBA
by means of the "hba-cap" property. Each port can have the "hba-port-cap"
property initialized indicating that the port supports some of the next
functionalities: HPCP - HotPlug capable port, MPSP - Mechanical Presence
Switch attached to a port, CPD - Cold Plug detection, ESP - External SATA
Port (eSATA), FBSCP - FIS-based switching capable port.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:08 +0000 (22:36 +0300)]
ata: libahci_platform: Introduce reset assertion/deassertion methods
Currently the ACHI-platform library supports only the assert and deassert
reset signals and ignores the platforms with self-deasserting reset lines.
That prone to having the platforms with self-deasserting reset method
misbehaviour when it comes to resuming from sleep state after the clocks
have been fully disabled. For such cases the controller needs to be fully
reset all over after the reference clocks are enabled and stable,
otherwise the controller state machine might be in an undetermined state.
The best solution would be to auto-detect which reset method is supported
by the particular platform and use it implicitly in the framework of the
ahci_platform_enable_resources()/ahci_platform_disable_resources()
methods. Alas it can't be implemented due to the AHCI-platform library
already supporting the shared reset control lines. As [1] says in such
case we have to use only one of the next methods:
+ reset_control_assert()/reset_control_deassert();
+ reset_control_reset()/reset_control_rearm().
If the driver had an exclusive control over the reset lines we could have
been able to manipulate the lines with no much limitation and just used
the combination of the methods above to cover all the possible
reset-control cases. Since the shared reset control has already been
advertised and couldn't be changed with no risk to breaking the platforms
relying on it, we have no choice but to make the platform drivers to
determine which reset methods the platform reset system supports.
In order to implement both types of reset control support we suggest to
introduce the new AHCI-platform flag: AHCI_PLATFORM_RST_TRIGGER, which
when passed to the ahci_platform_get_resources() method together with the
AHCI_PLATFORM_GET_RESETS flag will indicate that the reset lines are
self-deasserting thus the reset_control_reset()/reset_control_rearm() will
be used to control the reset state. Otherwise the
reset_control_deassert()/reset_control_assert() methods will be utilized.
[1] Documentation/driver-api/reset.rst
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:07 +0000 (22:36 +0300)]
ata: libahci_platform: Parse ports-implemented property in resources getter
The ports-implemented property is mainly used on the OF-based platforms
with no ports mapping initialized by a bootloader/BIOS firmware. Seeing
the same of_property_read_u32()-based pattern has already been implemented
in the generic AHCI LLDD (glue) driver and in the Mediatek, St AHCI
drivers let's move the property read procedure to the generic
ahci_platform_get_resources() method. Thus we'll have the forced ports
mapping feature supported for each OF-based platform which requires that,
and stop re-implementing the same pattern in there a bit simplifying the
code.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:06 +0000 (22:36 +0300)]
ata: libahci_platform: Sanity check the DT child nodes number
Having greater than AHCI_MAX_PORTS (32) ports detected isn't that critical
from the further AHCI-platform initialization point of view since
exceeding the ports upper limit will cause allocating more resources than
will be used afterwards. But detecting too many child DT-nodes doesn't
seem right since it's very unlikely to have it on an ordinary platform. In
accordance with the AHCI specification there can't be more than 32 ports
implemented at least due to having the CAP.NP field of 5 bits wide and the
PI register of dword size. Thus if such situation is found the DTB must
have been corrupted and the data read from it shouldn't be reliable. Let's
consider that as an erroneous situation and halt further resources
allocation.
Note it's logically more correct to have the nports set only after the
initialization value is checked for being sane. So while at it let's make
sure nports is assigned with a correct value.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:05 +0000 (22:36 +0300)]
ata: libahci_platform: Convert to using devm bulk clocks API
In order to simplify the clock-related code there is a way to convert the
current fixed clocks array into using the common bulk clocks kernel API
with dynamic set of the clock handlers and device-managed clock-resource
tracking. It's a bit tricky due to the complication coming from the
requirement to support the platforms (da850, spear13xx) with the
non-OF-based clock source, but still doable.
Before this modification there are two methods have been used to get the
clocks connected to an AHCI device: clk_get() - to get the very first
clock in the list and of_clk_get() - to get the rest of them. Basically
the platforms with non-OF-based clocks definition could specify only a
single reference clock source. The platforms with OF-hw clocks have been
luckier and could setup up to AHCI_MAX_CLKS clocks. Such semantic can be
retained with using devm_clk_bulk_get_all() to retrieve the clocks defined
via the DT firmware and devm_clk_get_optional() otherwise. In both cases
using the device-managed version of the methods will cause the automatic
resources deallocation on the AHCI device removal event. The only
complicated part in the suggested approach is the explicit allocation and
initialization of the clk_bulk_data structure instance for the non-OF
reference clocks. It's required in order to use the Bulk Clocks API for
the both denoted cases of the clocks definition.
Note aside with the clock-related code reduction and natural
simplification, there are several bonuses the suggested modification
provides. First of all the limitation of having no greater than
AHCI_MAX_CLKS clocks is now removed, since the devm_clk_bulk_get_all()
method will allocate as many reference clocks data descriptors as there
are clocks specified for the device. Secondly the clock names are
auto-detected. So the LLDD (glue) drivers can make sure that the required
clocks are specified just by checking the clock IDs in the clk_bulk_data
array. Thirdly using the handy Bulk Clocks kernel API improves the
clocks-handling code readability. And the last but not least this
modification implements a true optional clocks support to the
ahci_platform_get_resources() method. Indeed the previous clocks getting
procedure just stopped getting the clocks on any errors (aside from
non-critical -EPROBE_DEFER) in a way so the callee wasn't even informed
about abnormal loop termination. The new implementation lacks of such
problem. The ahci_platform_get_resources() will return an error code if
the corresponding clocks getting method ends execution abnormally.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:04 +0000 (22:36 +0300)]
ata: libahci_platform: Convert to using platform devm-ioremap methods
Currently the IOMEM AHCI registers space is mapped by means of the
two functions invocation: platform_get_resource() is used to get the very
first memory resource and devm_ioremap_resource() is called to remap that
resource. Device-managed kernel API provides a handy wrapper to perform
the same in single function call: devm_platform_ioremap_resource().
While at it seeing many AHCI platform drivers rely on having the AHCI CSR
space marked with "ahci" name let's first try to find and remap the CSR
IO-mem with that name and only if it fails fallback to getting the very
first registers space platform resource.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:03 +0000 (22:36 +0300)]
dt-bindings: ata: sata-brcm: Apply common AHCI schema
The Broadcom SATA controller is obviously based on the AHCI standard. The
device driver uses the kernel AHCI library to work with it. Therefore we
can be have a more thorough DT-bindings evaluation by referring to the
AHCI-common schema instead of using the more relaxed SATA-common one.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:02 +0000 (22:36 +0300)]
dt-bindings: ata: sata: Extend number of SATA ports
The denoted in the description upper limit only concerns the Port
Multipliers, but not the actual SATA ports. It's an external device
attached to a SATA port in order to access more than one SATA-drive. So
when it's attached to a SATA port it just extends the port capability
while the number of actual SATA ports stays the same. For instance on AHCI
controllers the number of actual ports is determined by the CAP.NP field
and the PI (Ports Implemented) register. AFAICS in general the maximum
number of SATA ports depends on the particular controller implementation.
Generic AHCI controller can't have more than 32 ports (since CAP.NP is of
5 bits wide and PI register is 32-bits size), while DWC AHCI SATA
controller can't be configured with more than 8 ports activated. So let's
discard the SATA ports reg-property restrictions and just make sure that
it consists of a single reg-item.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:01 +0000 (22:36 +0300)]
dt-bindings: ata: ahci-platform: Clarify common AHCI props constraints
Indeed in accordance with what is implemented in the AHCI platform driver
and the way the AHCI DT nodes are defined in the DT files we can add the
next AHCI DT properties constraints: AHCI CSR ID is fixed to 'ahci', PHY
name is fixed to 'sata-phy', AHCI controller can't have more than 32 ports
by design, AHCI controller can have up to 32 IRQ lines.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:36:00 +0000 (22:36 +0300)]
dt-bindings: ata: ahci-platform: Detach common AHCI bindings
In order to create a more sophisticated AHCI controller DT bindings let's
divide the already available generic AHCI platform YAML schema into the
platform part and a set of the common AHCI properties. The former part
will be used to evaluate the AHCI DT nodes mainly compatible with the
generic AHCI controller while the later schema will be used for more
thorough AHCI DT nodes description. For instance such YAML schemas design
will be useful for our DW AHCI SATA controller derivative with four clock
sources, two reset lines, one system controller reference and specific
max Rx/Tx DMA xfers size constraints.
Note the phys and target-supply property requirement is preserved in the
generic AHCI platform bindings because some platforms can lack of the
explicitly specified PHYs or target device power regulators.
Also note the SATA/AHCI ports properties have been moved to the
$defs-paragraph of the schemas. It's done in order to create the
extendable properties hierarchy such that particular AHCI-controller
could add vendor-specific port properties.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Serge Semin [Fri, 9 Sep 2022 19:35:59 +0000 (22:35 +0300)]
dt-bindings: ata: ahci-platform: Move dma-coherent to sata-common.yaml
Seeing doubtfully any SATA device working without embedded DMA engine
let's permit the device nodes being equipped with the dma-coherent
property in case if the platform is capable of cache-coherent DMAs.
As a side-effect we can drop the explicit dma-coherent property definition
from the particular device schemas. Currently it concerns the Broadcom
SATA AHCI controller only.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Lukas Bulwahn [Wed, 14 Sep 2022 14:27:13 +0000 (16:27 +0200)]
ata: make PATA_PLATFORM selectable only for suitable architectures
It is currently possible to select "Generic platform device PATA support"
in two situations:
- architecture allows the generic platform device PATA support and
indicates that with "select HAVE_PATA_PLATFORM".
- if the user claims to be an EXPERT by setting CONFIG_EXPERT to yes
However, there is no use case to have Generic platform device PATA support
in a kernel build if the architecture definition, i.e., the selection of
configs by an architecture, does not support it.
If the architecture definition is wrong, i.e., it just misses a 'select
HAVE_PATA_PLATFORM', then even an expert that configures the kernel build
should not just fix that by overruling the claimed support by an
architecture. If the architecture definition is wrong, the expert should
just provide a patch to correct the architecture definition instead---in
the end, if the user is an expert, sending a quick one-line patch should
not be an issue.
In other words, I do not see the deeper why an expert can overrule the
architecture definition in this case, as the expert may not overrule the
config selections defined by the architecture in the large majority
---or probably all other (modulo some mistakes)---of similar cases.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Lukas Bulwahn [Wed, 14 Sep 2022 14:27:12 +0000 (16:27 +0200)]
ata: clean up how architectures enable PATA_PLATFORM and PATA_OF_PLATFORM
There are two options for platform device PATA support:
PATA_PLATFORM: Generic platform device PATA support
PATA_OF_PLATFORM: OpenFirmware platform device PATA support
If an architecture allows the generic platform device PATA support, it
shall select HAVE_PATA_PLATFORM. Then, Generic platform device PATA support
is available and can be selected.
If an architecture has OpenFirmware support, which it indicates by
selecting OF, OpenFirmware platform device PATA support is available
and can be selected.
If OpenFirmware platform device PATA support is selected, then the
functionality (code files) from Generic platform device PATA support needs
to be integrated in the kernel build for the OpenFirmware platform device
PATA support to work. Select PATA_PLATFORM in PATA_OF_PLATFORM to make sure
the needed files are added in the build.
So, architectures with OpenFirmware support, do not need to additionally
select HAVE_PATA_PLATFORM. It is only needed by architecture that want the
non-OF pata-platform module.
Reflect this way of intended use of config symbols in the ata Kconfig and
adjust all architecture definitions.
This follows the suggestion from Arnd Bergmann (see Link).
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/all/4b33bffc-2b6d-46b4-9f1d-d18e55975a5a@www.fastmail.com/
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Li Zhong [Sat, 3 Sep 2022 23:10:39 +0000 (16:10 -0700)]
ata: libata-core: Check errors in sata_print_link_status()
sata_scr_read() could return negative error code on failure. Check the
return value when reading the control register.
Signed-off-by: Li Zhong <floridsleeves@gmail.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Shaomin Deng [Tue, 30 Aug 2022 07:50:24 +0000 (03:50 -0400)]
ata: libata-sff: Fix double word in comments
Remove the repeated word "Transfer" in comments.
Signed-off-by: Shaomin Deng <dengshaomin@cdjrlc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Shaomin Deng [Thu, 25 Aug 2022 14:52:15 +0000 (10:52 -0400)]
ata: pata_macio: Remove unneeded word in comments
There is unneeded word "to" in line 669, so remove it.
Signed-off-by: Shaomin Deng <dengshaomin@cdjrlc.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Damien Le Moal [Thu, 25 Aug 2022 22:43:30 +0000 (07:43 +0900)]
ata: libata-core: Simplify ata_dev_set_xfermode()
The err_mask variable is not useful. Remove it.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Damien Le Moal [Mon, 25 Jul 2022 01:01:27 +0000 (10:01 +0900)]
ata: libata-core: Simplify ata_build_rw_tf()
Since ata_build_rw_tf() is only called from ata_scsi_rw_xlat() with the
tf, dev and tag arguments obtained from the queued command structure,
we can simplify the interface of ata_build_rw_tf() by passing directly
the qc structure as argument.
Furthermore, since ata_scsi_rw_xlat() is never used for internal
commands, we can also remove the internal tag check for the NCQ case.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Damien Le Moal [Thu, 9 Jun 2022 03:33:13 +0000 (12:33 +0900)]
ata: libata: Rename ATA_DFLAG_NCQ_PRIO_ENABLE
Rename ATA_DFLAG_NCQ_PRIO_ENABLE to ATA_DFLAG_NCQ_PRIO_ENABLED to match
the fact that this flags indicates if NCQ priority use is enabled by the
user.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Jinpeng Cui [Tue, 23 Aug 2022 12:29:14 +0000 (12:29 +0000)]
ata: libata-core: remove redundant err_mask variable
Return value from ata_exec_internal() directly instead of
taking this in another redundant variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Jinpeng Cui <cui.jinpeng2@zte.com.cn>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Rafael J. Wysocki [Thu, 25 Aug 2022 18:47:28 +0000 (20:47 +0200)]
ata: ahci: Do not check ACPI_FADT_LOW_POWER_S0
The ACPI_FADT_LOW_POWER_S0 flag merely means that it is better to
use low-power S0 idle on the given platform than S3 (provided that
the latter is supported) and it doesn't preclude using either of
them (which of them will be used depends on the choices made by user
space).
For this reason, there is no benefit from checking that flag in
ahci_update_initial_lpm_policy().
First off, it cannot be a bug to do S3 with policy set to either
ATA_LPM_MIN_POWER_WITH_PARTIAL or ATA_LPM_MIN_POWER, because S3 can be
used on systems with ACPI_FADT_LOW_POWER_S0 set and it must work if
really supported, so the ACPI_FADT_LOW_POWER_S0 check is not needed to
protect the S3-capable systems from failing.
Second, suspend-to-idle can be carried out on a system with
ACPI_FADT_LOW_POWER_S0 unset and it is expected to work, so if setting
policy to either ATA_LPM_MIN_POWER_WITH_PARTIAL or ATA_LPM_MIN_POWER is
needed to handle that case correctly, it should be done regardless of
the ACPI_FADT_LOW_POWER_S0 value.
Accordingly, replace the ACPI_FADT_LOW_POWER_S0 check in
ahci_update_initial_lpm_policy() with pm_suspend_default_s2idle()
which is more general and also takes the user's preference into
account and drop the CONFIG_ACPI #ifdef around it that is not necessary
any more.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Niklas Cassel [Tue, 16 Aug 2022 11:53:28 +0000 (13:53 +0200)]
ata: libata-core: improve parameter names for ata_dev_set_feature()
ata_dev_set_feature() is currently used for enabling/disabling any ATA
feature, e.g. SETFEATURES_SPINUP and SETFEATURE_SENSE_DATA, i.e. it is
not only used to enable/disable SATA specific features.
For most features, the enable/disable bit is specified in the subcommand
specific field "count".
It is only for the specific subcommands "Enable SATA feature" (0x10) and
"Disable SATA feature" (0x90) where the field "count" is used to specify
a feature instead of enable/disable. The parameter names for this
function are thus quite misleading.
Rename the parameter names to be more generic and in line with ACS-5,
and remove the references to "SATA FEATURES" in the kernel-doc.
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tomas Henzl [Wed, 10 Aug 2022 17:59:09 +0000 (19:59 +0200)]
ata: libata-core: Print timeout value when internal command times
Printing the timeout value may help in troubleshooting failures.
Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Linus Torvalds [Sun, 14 Aug 2022 22:50:18 +0000 (15:50 -0700)]
Linux 6.0-rc1
Yury Norov [Fri, 12 Aug 2022 05:34:25 +0000 (22:34 -0700)]
radix-tree: replace gfp.h inclusion with gfp_types.h
Radix tree header includes gfp.h for __GFP_BITS_SHIFT only. Now we
have gfp_types.h for this.
Fixes powerpc allmodconfig build:
In file included from include/linux/nodemask.h:97,
from include/linux/mmzone.h:17,
from include/linux/gfp.h:7,
from include/linux/radix-tree.h:12,
from include/linux/idr.h:15,
from include/linux/kernfs.h:12,
from include/linux/sysfs.h:16,
from include/linux/kobject.h:20,
from include/linux/pci.h:35,
from arch/powerpc/kernel/prom_init.c:24:
include/linux/random.h: In function 'add_latent_entropy':
>> include/linux/random.h:25:46: error: 'latent_entropy' undeclared (first use in this function); did you mean 'add_latent_entropy'?
25 | add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
| ^~~~~~~~~~~~~~
| add_latent_entropy
include/linux/random.h:25:46: note: each undeclared identifier is reported only once for each function it appears in
Reported-by: kernel test robot <lkp@intel.com>
CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 14 Aug 2022 20:03:53 +0000 (13:03 -0700)]
Merge tag 'pull-fixes' of git://git./linux/kernel/git/viro/vfs
Pull vfs lseek fix from Al Viro:
"Fix proc_reg_llseek() breakage. Always had been possible if somebody
left NULL ->proc_lseek, became a practical issue now"
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
take care to handle NULL ->proc_lseek()
Al Viro [Sun, 14 Aug 2022 19:16:18 +0000 (15:16 -0400)]
take care to handle NULL ->proc_lseek()
Easily done now, just by clearing FMODE_LSEEK in ->f_mode
during proc_reg_open() for such entries.
Fixes:
868941b14441 "fs: remove no_llseek"
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Linus Torvalds [Sun, 14 Aug 2022 16:28:54 +0000 (09:28 -0700)]
Merge tag 'for-linus-6.0-rc1b-tag' of git://git./linux/kernel/git/xen/tip
Pull more xen updates from Juergen Gross:
- fix the handling of the "persistent grants" feature negotiation
between Xen blkfront and Xen blkback drivers
- a cleanup of xen.config and adding xen.config to Xen section in
MAINTAINERS
- support HVMOP_set_evtchn_upcall_vector, which is more compliant to
"normal" interrupt handling than the global callback used up to now
- further small cleanups
* tag 'for-linus-6.0-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
MAINTAINERS: add xen config fragments to XEN HYPERVISOR sections
xen: remove XEN_SCRUB_PAGES in xen.config
xen/pciback: Fix comment typo
xen/xenbus: fix return type in xenbus_file_read()
xen-blkfront: Apply 'feature_persistent' parameter when connect
xen-blkback: Apply 'feature_persistent' parameter when connect
xen-blkback: fix persistent grants negotiation
x86/xen: Add support for HVMOP_set_evtchn_upcall_vector
Linus Torvalds [Sun, 14 Aug 2022 16:22:11 +0000 (09:22 -0700)]
Merge tag 'perf-tools-fixes-for-v6.0-2022-08-13' of git://git./linux/kernel/git/acme/linux
Pull more perf tool updates from Arnaldo Carvalho de Melo:
- 'perf c2c' now supports ARM64, adjust its output to cope with
differences with what is in x86_64. Now go find false sharing on
ARM64 (at least Neoverse) as well!
- Refactor the JSON processing, making the output more compact and thus
reducing the size of the resulting perf binary
- Improvements for 'perf offcpu' profiling, including tracking child
processes
- Update Intel JSON metrics and events files for broadwellde,
broadwellx, cascadelakex, haswellx, icelakex, ivytown, jaketown,
knightslanding, sapphirerapids, skylakex and snowridgex
- Add 'perf stat' JSON output and a 'perf test' entry for it
- Ignore memfd and anonymous mmap events if jitdump present
- Refactor 'perf test' shell tests allowing subdirs
- Fix an error handling path in 'parse_perf_probe_command()'
- Fixes for the guest Intel PT tracing patchkit in the 1st batch of
this merge window
- Print debuginfod queries if -v option is used, to explain delays in
processing when debuginfo servers are enabled to fetch DSOs with
richer symbol tables
- Improve error message for 'perf record -p not_existing_pid'
- Fix openssl and libbpf feature detection
- Add PMU pai_crypto event description for IBM z16 on 'perf list'
- Fix typos and duplicated words on comments in various places
* tag 'perf-tools-fixes-for-v6.0-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (81 commits)
perf test: Refactor shell tests allowing subdirs
perf vendor events: Update events for snowridgex
perf vendor events: Update events and metrics for skylakex
perf vendor events: Update metrics for sapphirerapids
perf vendor events: Update events for knightslanding
perf vendor events: Update metrics for jaketown
perf vendor events: Update metrics for ivytown
perf vendor events: Update events and metrics for icelakex
perf vendor events: Update events and metrics for haswellx
perf vendor events: Update events and metrics for cascadelakex
perf vendor events: Update events and metrics for broadwellx
perf vendor events: Update metrics for broadwellde
perf jevents: Fold strings optimization
perf jevents: Compress the pmu_events_table
perf metrics: Copy entire pmu_event in find metric
perf pmu-events: Hide the pmu_events
perf pmu-events: Don't assume pmu_event is an array
perf pmu-events: Move test events/metrics to JSON
perf test: Use full metric resolution
perf pmu-events: Hide pmu_events_map
...
Linus Torvalds [Sun, 14 Aug 2022 15:48:13 +0000 (08:48 -0700)]
Merge tag 'powerpc-6.0-2' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Ensure we never emit lwarx with EH=1 on 32-bit, because some 32-bit
CPUs trap on it rather than ignoring it as they should.
- Fix ftrace when building with clang, which was broken by some
refactoring.
- A couple of other minor fixes.
Thanks to Christophe Leroy, Naveen N. Rao, Nick Desaulniers, Ondrej
Mosnacek, Pali Rohár, Russell Currey, and Segher Boessenkool.
* tag 'powerpc-6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/kexec: Fix build failure from uninitialised variable
powerpc/ppc-opcode: Fix PPC_RAW_TW()
powerpc64/ftrace: Fix ftrace for clang builds
powerpc: Make eh value more explicit when using lwarx
powerpc: Don't hide eh field of lwarx behind a macro
powerpc: Fix eh field when calling lwarx on PPC32
Linus Torvalds [Sun, 14 Aug 2022 00:35:58 +0000 (17:35 -0700)]
Merge tag 'pull-work.misc' of git://git./linux/kernel/git/viro/vfs
Pull /proc/mounts fix from Al Viro:
"Fix for /proc/mounts escaping - escape the '#' character too"
* tag 'pull-work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
vfs: escape hash as well
Linus Torvalds [Sun, 14 Aug 2022 00:31:18 +0000 (17:31 -0700)]
Merge tag '5.20-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
Pull more cifs updates from Steve French:
- two fixes for stable, one for a lock length miscalculation, and
another fixes a lease break timeout bug
- improvement to handle leases, allows the close timeout to be
configured more safely
- five restructuring/cleanup patches
* tag '5.20-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Do not access tcon->cfids->cfid directly from is_path_accessible
cifs: Add constructor/destructors for tcon->cfid
SMB3: fix lease break timeout when multiple deferred close handles for the same file.
smb3: allow deferred close timeout to be configurable
cifs: Do not use tcon->cfid directly, use the cfid we get from open_cached_dir
cifs: Move cached-dir functions into a separate file
cifs: Remove {cifs,nfs}_fscache_release_page()
cifs: fix lock length calculation
David Howells [Wed, 10 Aug 2022 17:52:47 +0000 (18:52 +0100)]
afs: Enable multipage folio support
Enable multipage folio support for the afs filesystem.
Support has already been implemented in netfslib, fscache and cachefiles
and in most of afs, but I've waited for Matthew Wilcox's latest folio
changes.
Note that it does require a change to afs_write_begin() to return the
correct subpage. This is a "temporary" change as we're working on
getting rid of the need for ->write_begin() and ->write_end()
completely, at least as far as network filesystems are concerned - but
it doesn't prevent afs from making use of the capability.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: kafs-testing@auristor.com
Cc: Marc Dionne <marc.dionne@auristor.com>
Cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/lkml/2274528.1645833226@warthog.procyon.org.uk/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 13 Aug 2022 21:38:22 +0000 (14:38 -0700)]
Merge tag 'timers-urgent-2022-08-13' of git://git./linux/kernel/git/tip/tip
Pull timer fixes from Ingo Molnar:
"Misc timer fixes:
- fix a potential use-after-free bug in posix timers
- correct a prototype
- address a build warning"
* tag 'timers-urgent-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
posix-cpu-timers: Cleanup CPU timers before freeing them during exec
time: Correct the prototype of ns_to_kernel_old_timeval and ns_to_timespec64
posix-timers: Make do_clock_gettime() static
Linus Torvalds [Sat, 13 Aug 2022 21:24:12 +0000 (14:24 -0700)]
Merge tag 'x86-urgent-2022-08-13' of git://git./linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar:
"Fix the 'IBPB mitigated RETBleed' mode of operation on AMD CPUs (not
turned on by default), which also need STIBP enabled (if available) to
be '100% safe' on even the shortest speculation windows"
* tag 'x86-urgent-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/bugs: Enable STIBP for IBPB mitigated RETBleed
Linus Torvalds [Sat, 13 Aug 2022 21:06:08 +0000 (14:06 -0700)]
Merge tag 'i2c-for-5.20-part2' of git://git./linux/kernel/git/wsa/linux
Pull more i2c updates from Wolfram Sang:
- two driver fixes for issues introduced this cycle
- one trivial driver improvement regarding ACPI
- more DTS conversion and additions
- documentation updates
- subsystem-wide move from strlcpy to strscpy
* tag 'i2c-for-5.20-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
docs: i2c: i2c-sysfs: fix hyperlinks
docs: i2c: i2c-sysfs: improve wording
docs: i2c: instantiating-devices: add syntax coloring to dts and C blocks
docs: i2c: smbus-protocol: improve DataLow/DataHigh definition
docs: i2c: i2c-protocol: remove unused legend items
docs: i2c: i2c-protocol,smbus-protocol: remove nonsense words
docs: i2c: i2c-protocol: update introductory paragraph
i2c: move core from strlcpy to strscpy
i2c: move drivers from strlcpy to strscpy
i2c: kempld: Support ACPI I2C device declaration
i2c: mediatek: add i2c compatible for MT8188
dt-bindings: i2c: update bindings for mt8188 soc
i2c: microchip-corei2c: fix erroneous late ack send
dt-bindings: i2c: qcom,i2c-cci: convert to dtschema
i2c: qcom-geni: Fix GPI DMA buffer sync-back
Linus Torvalds [Sat, 13 Aug 2022 21:00:45 +0000 (14:00 -0700)]
Merge tag 'ntb-5.20' of https://github.com/jonmason/ntb
Pull NTB updates from Jon Mason:
"Non-Transparent Bridge updates.
Fix of heap data and clang warnings, support for a new Intel NTB
device, and NTB EndPoint Function (EPF) support and the various fixes
for that"
* tag 'ntb-5.20' of https://github.com/jonmason/ntb:
MAINTAINERS: add PCI Endpoint NTB drivers to NTB files
NTB: EPF: Tidy up some bounds checks
NTB: EPF: Fix error code in epf_ntb_bind()
PCI: endpoint: pci-epf-vntb: reduce several globals to statics
PCI: endpoint: pci-epf-vntb: fix error handle in epf_ntb_mw_bar_init()
PCI: endpoint: Fix Kconfig dependency
NTB: EPF: set pointer addr to null using NULL rather than 0
Documentation: PCI: extend subheading underline for "lspci output" section
Documentation: PCI: Use code-block block for scratchpad registers diagram
Documentation: PCI: Add specification for the PCI vNTB function device
PCI: endpoint: Support NTB transfer between RC and EP
NTB: epf: Allow more flexibility in the memory BAR map method
PCI: designware-ep: Allow pci_epc_set_bar() update inbound map address
ntb: intel: add GNR support for Intel PCIe gen5 NTB
NTB: ntb_tool: uninitialized heap data in tool_fn_write()
ntb: idt: fix clang -Wformat warnings
Linus Torvalds [Sat, 13 Aug 2022 20:50:11 +0000 (13:50 -0700)]
Merge tag 'xfs-5.20-merge-8' of git://git./fs/xfs/xfs-linux
Pull more xfs updates from Darrick Wong:
"There's not a lot this time around, just the usual bug fixes and
corrections for missing error returns.
- Return error codes from block device flushes to userspace
- Fix a deadlock between reclaim and mount time quotacheck
- Fix an unnecessary ENOSPC return when doing COW on a filesystem
with severe free space fragmentation
- Fix a miscalculation in the transaction reservation computations
for file removal operations"
* tag 'xfs-5.20-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix inode reservation space for removing transaction
xfs: Fix false ENOSPC when performing direct write on a delalloc extent in cow fork
xfs: fix intermittent hang during quotacheck
xfs: check return codes when flushing block devices
Linus Torvalds [Sat, 13 Aug 2022 20:41:48 +0000 (13:41 -0700)]
Merge tag 'scsi-misc' of git://git./linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"Mostly small bug fixes and trivial updates.
The major new core update is a change to the way device, target and
host reference counting is done to try to make it more robust (this
change has soaked for a while to try to winkle out any bugs)"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: pm8001: Fix typo 'the the' in comment
scsi: megaraid_sas: Remove redundant variable cmd_type
scsi: FlashPoint: Remove redundant variable bm_int_st
scsi: zfcp: Fix missing auto port scan and thus missing target ports
scsi: core: Call blk_mq_free_tag_set() earlier
scsi: core: Simplify LLD module reference counting
scsi: core: Make sure that hosts outlive targets
scsi: core: Make sure that targets outlive devices
scsi: ufs: ufs-pci: Correct check for RESET DSM
scsi: target: core: De-RCU of se_lun and se_lun acl
scsi: target: core: Fix race during ACL removal
scsi: ufs: core: Correct ufshcd_shutdown() flow
scsi: ufs: core: Increase the maximum data buffer size
scsi: lpfc: Check the return value of alloc_workqueue()
Linus Torvalds [Sat, 13 Aug 2022 20:37:36 +0000 (13:37 -0700)]
Merge tag 'block-6.0-2022-08-12' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- NVMe pull request
- print nvme connect Linux error codes properly (Amit Engel)
- fix the fc_appid_store return value (Christoph Hellwig)
- fix a typo in an error message (Christophe JAILLET)
- add another non-unique identifier quirk (Dennis P. Kliem)
- check if the queue is allocated before stopping it in nvme-tcp
(Maurizio Lombardi)
- restart admin queue if the caller needs to restart queue in
nvme-fc (Ming Lei)
- use kmemdup instead of kmalloc + memcpy in nvme-auth (Zhang
Xiaoxu)
- __alloc_disk_node() error handling fix (Rafael)
* tag 'block-6.0-2022-08-12' of git://git.kernel.dk/linux-block:
block: Do not call blk_put_queue() if gendisk allocation fails
nvme-pci: add NVME_QUIRK_BOGUS_NID for ADATA XPG GAMMIX S70
nvme-tcp: check if the queue is allocated before stopping it
nvme-fabrics: Fix a typo in an error message
nvme-fabrics: parse nvme connect Linux error codes
nvmet-auth: use kmemdup instead of kmalloc + memcpy
nvme-fc: fix the fc_appid_store return value
nvme-fc: restart admin queue if the caller needs to restart queue
Linus Torvalds [Sat, 13 Aug 2022 20:28:54 +0000 (13:28 -0700)]
Merge tag 'io_uring-6.0-2022-08-13' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
- Regression fix for this merge window, fixing a wrong order of
arguments for io_req_set_res() for passthru (Dylan)
- Fix for the audit code leaking context memory (Peilin)
- Ensure that provided buffers are memcg accounted (Pavel)
- Correctly handle short zero-copy sends (Pavel)
- Sparse warning fixes for the recvmsg multishot command (Dylan)
- Error handling fix for passthru (Anuj)
- Remove randomization of struct kiocb fields, to avoid it growing in
size if re-arranged in such a fashion that it grows more holes or
padding (Keith, Linus)
- Small series improving type safety of the sqe fields (Stefan)
* tag 'io_uring-6.0-2022-08-13' of git://git.kernel.dk/linux-block:
io_uring: add missing BUILD_BUG_ON() checks for new io_uring_sqe fields
io_uring: make io_kiocb_to_cmd() typesafe
fs: don't randomize struct kiocb fields
io_uring: consistently make use of io_notif_to_data()
io_uring: fix error handling for io_uring_cmd
io_uring: fix io_recvmsg_prep_multishot sparse warnings
io_uring/net: send retry for zerocopy
io_uring: mem-account pbuf buckets
audit, io_uring, io-wq: Fix memory leak in io_sq_thread() and io_wqe_worker()
io_uring: pass correct parameters to io_req_set_res
Carsten Haitzler [Fri, 12 Aug 2022 12:16:28 +0000 (13:16 +0100)]
perf test: Refactor shell tests allowing subdirs
This is a prelude to adding more tests to shell tests and in order to
support putting those tests into subdirectories, I need to change the
test code that scans/finds and runs them.
To support subdirs I have to recurse so it's time to refactor the code
to allow this and centralize the shell script finding into one location
and only one single scan that builds a list of all the found tests in
memory instead of it being duplicated in 3 places.
This code also optimizes things like knowing the max width of desciption
strings (as we can do that while we scan instead of a whole new pass of
opening files).
It also more cleanly filters scripts to see only *.sh files thus
skipping random other files in directories like *~ backup files, other
random junk/data files that may appear and the scripts must be
executable to make the cut (this ensures the script lib dir is not seen
as scripts to run).
This avoids perf test running previous older versions of test scripts
that are editor backup files as well as skipping perf.data files that
may appear and so on.
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Tested-by: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: https://lore.kernel.org/r/20220812121641.336465-2-carsten.haitzler@foss.arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Zhengjun Xing [Fri, 12 Aug 2022 08:52:39 +0000 (16:52 +0800)]
perf vendor events: Update events for snowridgex
Update the events to v1.20, update events for snowridgex by the latest
event converter tools.
Use script at:
https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py
to download and generate the latest events and metrics. Manually copy
the snowridgex files into perf.
Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220812085239.3089231-12-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Zhengjun Xing [Fri, 12 Aug 2022 08:52:38 +0000 (16:52 +0800)]
perf vendor events: Update events and metrics for skylakex
Update the events to v1.28, the metrics are based on TMA 4.4 full, update
events and metrics for skylakex by the latest event converter tools.
Use script at:
https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py
to download and generate the latest events and metrics. Manually copy
the skylakex files into perf.
Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220812085239.3089231-11-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Zhengjun Xing [Fri, 12 Aug 2022 08:52:37 +0000 (16:52 +0800)]
perf vendor events: Update metrics for sapphirerapids
The metrics are based on TMA 4.4 full, add new metrics “UNCORE_FREQ” for
sapphirerapids.
Use script at:
https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py
to download and generate the latest events and metrics. Manually copy
the sapphirerapids files into perf.
Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220812085239.3089231-10-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Zhengjun Xing [Fri, 12 Aug 2022 08:52:36 +0000 (16:52 +0800)]
perf vendor events: Update events for knightslanding
Update the events to v9, update events for knightslanding by the latest
event converter tools.
Use script at:
https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py
to download and generate the latest events and metrics. Manually copy
the knightslanding files into perf.
Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220812085239.3089231-9-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Zhengjun Xing [Fri, 12 Aug 2022 08:52:35 +0000 (16:52 +0800)]
perf vendor events: Update metrics for jaketown
The metrics are based on TMA 4.4 full, add new metrics “UNCORE_FREQ” for
jaketown.
Use script at:
https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py
to download and generate the latest events and metrics. Manually copy
the jaketown files into perf.
Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220812085239.3089231-8-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Zhengjun Xing [Fri, 12 Aug 2022 08:52:34 +0000 (16:52 +0800)]
perf vendor events: Update metrics for ivytown
The metrics are based on TMA 4.4 full, add new metrics “UNCORE_FREQ” for
ivytown.
Use script at:
https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py
to download and generate the latest events and metrics. Manually copy
the ivytown files into perf.
Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220812085239.3089231-7-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Zhengjun Xing [Fri, 12 Aug 2022 08:52:33 +0000 (16:52 +0800)]
perf vendor events: Update events and metrics for icelakex
Update the events to v1.15, the metrics are based on TMA 4.4 full, update
events and metrics for icelakex by the latest event converter tools.
Use script at:
https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py
to download and generate the latest events and metrics. Manually copy
the icelakex files into perf.
Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220812085239.3089231-6-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Zhengjun Xing [Fri, 12 Aug 2022 08:52:32 +0000 (16:52 +0800)]
perf vendor events: Update events and metrics for haswellx
Update the events to v25, the metrics are based on TMA 4.4 full, update
events and metrics for haswellx by the latest event converter tools.
Use script at:
https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py
to download and generate the latest events and metrics. Manually copy
the haswellx files into perf.
Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220812085239.3089231-5-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Zhengjun Xing [Fri, 12 Aug 2022 08:52:31 +0000 (16:52 +0800)]
perf vendor events: Update events and metrics for cascadelakex
Update to v16, the metrics are based on TMA 4.4 full, update events and add
new metrics “UNCORE_FREQ” for cascadelakex.
Use script at:
https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py
to download and generate the latest events and metrics. Manually copy
the cascadelakex files into perf.
Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220812085239.3089231-4-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Zhengjun Xing [Fri, 12 Aug 2022 08:52:30 +0000 (16:52 +0800)]
perf vendor events: Update events and metrics for broadwellx
Update to v19, the metrics are based on TMA 4.4 full, update events and add
new metrics “UNCORE_FREQ” for broadwellx.
Use script at:
https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py
to download and generate the latest events and metrics. Manually copy
the broadwellx files into perf.
Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220812085239.3089231-3-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Zhengjun Xing [Fri, 12 Aug 2022 08:52:29 +0000 (16:52 +0800)]
perf vendor events: Update metrics for broadwellde
The metrics are based on TMA 4.4 full, add new metrics “UNCORE_FREQ” for
broadwellde.
Use script at:
https://github.com/intel/event-converter-for-linux-perf/blob/master/download_and_gen.py
to download and generate the latest events and metrics. Manually copy
the broadwellde files into perf.
Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220812085239.3089231-2-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Fri, 12 Aug 2022 23:09:49 +0000 (16:09 -0700)]
perf jevents: Fold strings optimization
If a shorter string ends a longer string then the shorter string may
reuse the longer string at an offset. For example, on x86 the event
arith.cycles_div_busy and cycles_div_busy can be folded, even though
they have difference names the strings are identical after 6
characters. cycles_div_busy can reuse the arith.cycles_div_busy string
at an offset of 6.
In pmu-events.c this looks like the following where the 'also:' lists
folded strings:
/* offset=177541 */ "arith.cycles_div_busy\000\000pipeline\000Cycles the divider is busy\000\000\000event=0x14,period=2000000,umask=0x1\000\000\000\000\000\000\000\000\000" /* also: cycles_div_busy\000\000pipeline\000Cycles the divider is busy\000\000\000event=0x14,period=2000000,umask=0x1\000\000\000\000\000\000\000\000\000 */
As jevents.py combines multiple strings for an event into a larger
string, the amount of folding is minimal as all parts of the event must
align. Other organizations can benefit more from folding, but lose space
by say recording more offsets.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220812230949.683239-15-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Fri, 12 Aug 2022 23:09:48 +0000 (16:09 -0700)]
perf jevents: Compress the pmu_events_table
The pmu_events array requires 15 pointers per entry which in position
independent code need relocating. Change the array to be an array of
offsets within a big C string. Only the offset of the first variable is
required, subsequent variables are stored in order after the \0
terminator (requiring a byte per variable rather than 4 bytes per
offset).
The file size savings are:
no jevents - the same 19,788,464bytes
x86 jevents - ~16.7% file size saving 23,744,288bytes vs 28,502,632bytes
all jevents - ~19.5% file size saving 24,469,056bytes vs 30,379,920bytes
default build options plus NO_LIBBFD=1.
For example, the x86 build savings come from .rela.dyn and
.data.rel.ro becoming smaller by 3,157,032bytes and 3,042,016bytes
respectively. .rodata increases by 1,432,448bytes, giving an overall
4,766,600bytes saving.
To make metric strings more shareable, the topic is changed from say
'skx metrics' to just 'metrics'.
To try to help with the memory layout the pmu_events are ordered as used
by perf qsort comparator functions.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220812230949.683239-14-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Fri, 12 Aug 2022 23:09:47 +0000 (16:09 -0700)]
perf metrics: Copy entire pmu_event in find metric
The pmu_event passed to the pmu_events_table_for_each_event is invalid
after the loop. Copy the entire struct in metricgroup__find_metric.
Reduce the scope of this function to static.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220812230949.683239-13-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Fri, 12 Aug 2022 23:09:46 +0000 (16:09 -0700)]
perf pmu-events: Hide the pmu_events
Hide that the pmu_event structs are an array with a new wrapper struct.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220812230949.683239-12-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Fri, 12 Aug 2022 23:09:45 +0000 (16:09 -0700)]
perf pmu-events: Don't assume pmu_event is an array
The current code assumes that a struct pmu_event can be iterated over
forward until a NULL pmu_event is encountered.
This makes it difficult to refactor pmu_event.
Add a loop function taking a callback function that's passed the struct
pmu_event.
This way the pmu_event is only needed for one element and not an entire
array.
Switch existing code iterating over the pmu_event arrays to use the new
loop function pmu_events_table_for_each_event.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220812230949.683239-11-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Fri, 12 Aug 2022 23:09:44 +0000 (16:09 -0700)]
perf pmu-events: Move test events/metrics to JSON
Move arrays of pmu_events into the JSON code so that it may be
regenerated and modified by the jevents.py script.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220812230949.683239-10-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Fri, 12 Aug 2022 23:09:43 +0000 (16:09 -0700)]
perf test: Use full metric resolution
The simple metric resolution doesn't handle recursion properly, switch
to use the full resolution as with the parse-metric tests which also
increases coverage. Don't set the values for the metric backward as
failures to generate a result are ignored.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220812230949.683239-9-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Fri, 12 Aug 2022 23:09:42 +0000 (16:09 -0700)]
perf pmu-events: Hide pmu_events_map
Move usage of the table to pmu-events.c so it may be hidden. By
abstracting the table the implementation can later be changed.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220812230949.683239-8-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Fri, 12 Aug 2022 23:09:41 +0000 (16:09 -0700)]
perf pmu-events: Avoid passing pmu_events_map
Preparation for hiding pmu_events_map as an implementation detail. While
the map is passed, the table of events is all that is normally wanted.
While modifying the function's types, rename pmu_events_map__find to
pmu_events_table__find to match later encapsulation. Similarly rename
pmu_add_cpu_aliases_map to pmu_add_cpu_aliases_table.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220812230949.683239-7-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Fri, 12 Aug 2022 23:09:40 +0000 (16:09 -0700)]
perf pmu-events: Hide pmu_sys_event_tables
Move usage of the table to pmu-events.c so it may be hidden. By
abstracting the table the implementation can later be changed.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220812230949.683239-6-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Fri, 12 Aug 2022 23:09:39 +0000 (16:09 -0700)]
perf jevents: Sort JSON files entries
Sort the JSON files entries on conversion to C. The sort order tries to
replicated cmp_sevent from pmu.c so that the input there is already
sorted except for sysfs events. Specifically, the sort order is given by
the tuple:
(not j.desc is None, fix_none(j.topic), fix_none(j.name), fix_none(j.pmu), fix_none(j.metric_name))
which is putting events with descriptions and topics before those
without, then sorting by name, then pmu and finally metric_name
Add the topic to JsonEvent on reading to simplify. Remove an unnecessary
lambda in the JSON reading.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220812230949.683239-5-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Fri, 12 Aug 2022 23:09:38 +0000 (16:09 -0700)]
perf jevents: Provide path to JSON file on error
If a JSONDecoderError or similar is raised then it is useful to know the
path. Print this and then raise the exception agan.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220812230949.683239-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Fri, 12 Aug 2022 23:09:37 +0000 (16:09 -0700)]
perf jevents: Remove the type/version variables
pmu_events_map has a type variable that is always initialized to "core"
and a version variable that is never read. Remove these from the API as
it is straightforward to add them back when necessary.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220812230949.683239-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Fri, 12 Aug 2022 23:09:36 +0000 (16:09 -0700)]
perf jevent: Add an 'all' architecture argument
When 'all' is passed as the architecture generate a mapping table for
all architectures. This simplifies testing. To identify the table for an
architecture add an arch variable to the pmu_events_map.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220812230949.683239-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Linus Torvalds [Sat, 13 Aug 2022 01:39:43 +0000 (18:39 -0700)]
Merge tag 'riscv-for-linus-5.20-mw2' of git://git./linux/kernel/git/riscv/linux
Pull more RISC-V updates from Palmer Dabbelt:
"There's still a handful of new features in here, but there are a lot
of fixes/cleanups as well:
- Support for the Zicbom extension for explicit cache-block
management, along with the necessary bits to make the non-standard
cache management ops on the Allwinner D1 function
- Support for the Zihintpause extension, which codifies a go-slow
instruction used for cpu_relax()
- Support for the Sstc extension for supervisor-mode timer/counter
management
- Many device tree fixes and cleanups, including a large set for the
Canaan device trees
- A handful of fixes and cleanups for the PMU driver"
* tag 'riscv-for-linus-5.20-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (43 commits)
dt-bindings: gpio: sifive: add gpio-line-names
wireguard: selftests: set CONFIG_NONPORTABLE on riscv32
RISC-V: KVM: Support sstc extension
RISC-V: Improve SBI definitions
RISC-V: Move counter info definition to sbi header file
RISC-V: Fix SBI PMU calls for RV32
RISC-V: Update user page mapping only once during start
RISC-V: Fix counter restart during overflow for RV32
RISC-V: Prefer sstc extension if available
RISC-V: Enable sstc extension parsing from DT
RISC-V: Add SSTC extension CSR details
riscv:uprobe fix SR_SPIE set/clear handling
dt-bindings: riscv: fix SiFive l2-cache's cache-sets
riscv: ensure cpu_ops_sbi is declared
RISC-V: cpu_ops_spinwait.c should include head.h
RISC-V: Declare cpu_ops_spinwait in <asm/cpu_ops.h>
riscv: dts: starfive: correct number of external interrupts
riscv: dts: sifive unmatched: Add PWM controlled LEDs
riscv/purgatory: Omit use of bin2c
riscv/purgatory: hard-code obj-y in Makefile
...
Linus Torvalds [Sat, 13 Aug 2022 01:23:52 +0000 (18:23 -0700)]
Merge tag 'devicetree-fixes-for-6.0-1' of git://git./linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
- Fix schema warnings in qcom,ipq6018-pinctrl and sdhci-msm
- Convert Qualcomm SPMI PMIC to DT schema
- Make secure interrupt optional for arm,mhu
- Fix google,cros-ec-typec binding allowed properties
- Update a bunch of bouncing email addresses
* tag 'devicetree-fixes-for-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: chrome: google,cros-ec-typec: restrict allowed properties
dt-bindings: Drop Dan Murphy and Ricardo Rivera-Matos
dt-bindings: Drop Robert Jones
dt-bindings: Drop Beniamin Bia and Stefan Popa
dt-bindings: iio: Drop Bogdan Pricop
dt-bindings: iio: Drop Joachim Eastwood
dt-bindings: mailbox: arm,mhu: Make secure interrupt optional
dt-bindings: pinctrl: qcom,ipq6018: Fix example 'gpio-ranges' size
dt-bindings: Drop DT_MK_SCHEMA_FLAGS conditional selecting schema files
dt-bindings: mfd: convert to yaml Qualcomm SPMI PMIC
dt-bindings: mmc: sdhci-msm: Fix 'operating-points-v2 was unexpected' issue
dt-bindings: display: simple-framebuffer: Drop Bartlomiej Zolnierkiewicz
Linus Torvalds [Sat, 13 Aug 2022 01:17:42 +0000 (18:17 -0700)]
Merge tag 'rtc-6.0' of git://git./linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"New drivers:
- Microchip PolarFire
- Nuvoton NCT3018Y
- TI K3 RTC
Subsystem:
- Replace flush_scheduled_work() with flush_work()
- Remove deprecated ida_simple_get()/ida_simple_remove() calls
Drivers:
- use simple i2c probe where possible
- sun6i: add R329 support
- zynqmp: add calibration support
- vr41xx: remove unused driver"
* tag 'rtc-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (31 commits)
rtc: spear: set range max
rtc: rtc-cmos: Do not check ACPI_FADT_LOW_POWER_S0
rtc: zynqmp: initialize fract_tick
rtc: Add NCT3018Y real time clock driver
dt-bindings: rtc: nuvoton: add NCT3018Y Real Time Clock
dt-bindings: rtc: nxp,pcf85063: Convert to DT schema
dt-bindings: rtc: microcrystal,rv3032: Add missing type to 'trickle-voltage-millivolt'
rtc: rx8025: fix 12/24 hour mode detection on RX-8035
rtc: cros-ec: Only warn once in .remove() about notifier_chain problems
rtc: vr41xx: remove driver
rtc: mpfs: remove 'pending' variable from mpfs_rtc_wakeup_irq_handler()
rtc: rv8803: fix missing unlock on error in rv8803_set_time()
rtc: zynqmp: Add calibration set and get support
rtc: zynqmp: Updated calibration value
dt-bindings: rtc: zynqmp: Add clock information
rtc: sun6i: add support for R329 RTC
rtc: Directly use ida_alloc()/free()
rtc: Introduce ti-k3-rtc
dt-bindings: rtc: Add TI K3 RTC description
dt-bindings: rtc: qcom-pm8xxx-rtc: Update the maintainers section
...
Stefan Metzmacher [Thu, 11 Aug 2022 07:11:16 +0000 (09:11 +0200)]
io_uring: add missing BUILD_BUG_ON() checks for new io_uring_sqe fields
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Link: https://lore.kernel.org/r/ffcaf8dc4778db4af673822df60dbda6efdd3065.1660201408.git.metze@samba.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Stefan Metzmacher [Thu, 11 Aug 2022 07:11:15 +0000 (09:11 +0200)]
io_uring: make io_kiocb_to_cmd() typesafe
We need to make sure (at build time) that struct io_cmd_data is not
casted to a structure that's larger.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Link: https://lore.kernel.org/r/c024cdf25ae19fc0319d4180e2298bade8ed17b8.1660201408.git.metze@samba.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Keith Busch [Fri, 12 Aug 2022 22:56:33 +0000 (15:56 -0700)]
fs: don't randomize struct kiocb fields
This is a size sensitive structure and randomizing can introduce extra
padding that breaks io_uring's fixed size expectations. There are few
fields here as it is, half of which need a fixed order to optimally
pack, so the randomization isn't providing much.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Link: https://lore.kernel.org/io-uring/b6f508ca-b1b2-5f40-7998-e4cff1cf7212@kernel.dk/
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Ronnie Sahlberg [Fri, 12 Aug 2022 00:51:18 +0000 (19:51 -0500)]
cifs: Do not access tcon->cfids->cfid directly from is_path_accessible
cfids will soon keep a list of cached fids so we should not access this
directly from outside of cached_dir.c
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Jon Mason [Fri, 12 Aug 2022 19:42:05 +0000 (15:42 -0400)]
MAINTAINERS: add PCI Endpoint NTB drivers to NTB files
The PCI Endpoint NTB drivers are under the NTB umbrella. Add an entry
there to allow for notification of changes for it.
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Yang Li [Thu, 4 Aug 2022 00:52:13 +0000 (08:52 +0800)]
perf stat: Remove duplicated include in builtin-stat.c
util/topdown.h is included twice in builtin-stat.c,
remove one of them.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=1818
Link: https://lore.kernel.org/r/20220804005213.71990-1-yang.lee@linux.alibaba.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
shaomin Deng [Sun, 7 Aug 2022 16:02:39 +0000 (12:02 -0400)]
perf scripting python: Delete repeated word in comments
Delete the repeated word "into" in comments.
Signed-off-by: shaomin Deng <dengshaomin@cdjrlc.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20220807160239.474-1-dengshaomin@cdjrlc.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
shaomin Deng [Sun, 7 Aug 2022 15:55:49 +0000 (11:55 -0400)]
perf tools: Fix double word in comments
Delete the repeated word "to" in comments.
Signed-off-by: shaomin Deng <dengshaomin@cdjrlc.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20220807155549.30953-1-dengshaomin@cdjrlc.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>