This call is used to register and reset SGI interrupt.
Before this functionality was performed using IOCTL_REGISTER_SGI
pm_ioctl EEMI call. It's not correct use of PM_IOCTL as it is
not EEMI functionality. Instead this new SMCCC call will be
handled by TF-A specific handler.
Change-Id: If2408af38b889d29a5c584e8eec5f1672eab4fb5
Signed-off-by: Tanmay Shah <tanmay.shah@xilinx.com>
Add "reset" parameter in pm_register_sgi() to reset
SGI number. This will be required if OS wants to reset
SGI number to default state. Caller can reset param to
1 to reset SGI in ATF.
Change-Id: If485ff275df884f74eb67671cac7fa953458afe9
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Tanmay Shah <tanmay.shah@xilinx.com>
The patch does below things.
1. As per current implementation, when Linux send a request to ATF to
get the version of APIs which are implemented in ATF then ATF wasn't
returning any version because there is a check for LIBPM module id.
The ATF is used to return version for the APIs which are implemented
in the firmware only.
Hence moved this switch-case before checking module id to get ATF
version.
Also, no need to pass Linux request to the firmware for the APIs
which are implemented in ATF instead return success after updating
version.
2. As per current implementation, higher 16-bit is used for ATF
version and lower 16-bit is used for firmware version. Now, removed
16-bit shift operation and send complete word i.e. 32-bit to Linux
user as there is no user who checks ATF version.
3. Add bit mask support in the feature check PM EEMI API for QUERY and
IOCTL ids.
Change-Id: Icdca3de6659f3b673b81a423ed79a3c20b678768
Signed-off-by: Ronak Jain <ronak.jain@xilinx.com>
Signed-off-by: Tanmay Shah <tanmay.shah@xilinx.com>
Currently, SMC handler is limited to parsing 5 arguments (1 API ID + 4
32-bit command args). Extend this handling to support one more 32-bit
command argument which is necessary to support new IOCTL IDs for
secure read/write interface.
Note that, this change is completely transparent and does not affect
existing functionality of any of the EEMI APIs.
Change-Id: I72016620eeeaf598f14853512120bfb30bb9a3e9
Signed-off-by: Izhar Ameer Shaikh <izhar.ameer.shaikh@xilinx.com>
Signed-off-by: Tanmay Shah <tanmay.shah@xilinx.com>
This change adds common interfaces to handle commands from firmware driver
to power management controller. It removes big chunk of source line of code
that was handling each command separately and doing same repetitive work.
EEMI - Embedded Energy Management Interface is Xilinx proprietary
protocol to allow communication between power management controller
and different processing clusters.
As of now, Each EEMI command has its own implementation in TF-A.
This is redundant. Essentially most EEMI command implementation
in TF-A does same work. It prepares payload received from kernel, sends
payload to firmware, receives response from firmware and send response
back to kernel.
The same functionality can be achieved if common interface is used among
multiple EEMI commands. This change divides platform management related
SMCCC requests into 4 categories.
1) EEMI commands required for backward compatibility.
Some EEMI commands are still required for backward compatibility
until removed completely or its use is changed to accommodate
common interface
2) EEMI commands that require for PSCI interface and accessed from debugfs
For example EEMI calls related to CPU suspend/resume
3) TF-A specific requests
Functionality such as getting TF-A version and getting callback
data for platform management is handled by this interface
4) Common interface for rest of EEMI commands
This handlers performs payload and firmware response transaction job for
rest of EEMI commands. Also it parses module ID from SMC payload and inserts
in IPI request. If not module ID is found, then default is LIBPM_MODULE_ID.
This helps in making common path in TF-A for all the modules in PLM firmware
Change-Id: I57a2787c7fff9f2e1d1f9003b3daab092632d57e
Signed-off-by: Tanmay Shah <tanmay.shah@xilinx.com>
MISRA Violation: MISRA-C:2012 R.10.1
- Operands shall not be of an inappropriate essential type.
Signed-off-by: Abhyuday Godhasara <abhyuday.godhasara@xilinx.com>
Change-Id: I67b5788054a136be8d764472c5d85528a5c4272f
MISRA Violation: MISRA-C:2012 R.10.3
- The value of an expression shall not be assigned to an object with a
narrower essential type or of a different essential type category
Signed-off-by: Abhyuday Godhasara <abhyuday.godhasara@xilinx.com>
Change-Id: I73c056ff4df2f14e04c92a49ac5c97e578e82107
MISRA Violation: MISRA-C:2012 R.10.6
- The value of a composite expression shall not be assigned to an object
with wider essential type.
Signed-off-by: Abhyuday Godhasara <abhyuday.godhasara@xilinx.com>
Change-Id: I67ac6b6b4b643f57e76a435345540e241c9a88b9
MISRA Violation: MISRA-C:2012 R.15.6
- The body of an iteration-statement or a selection-statement shall be
a compound statement
Signed-off-by: Abhyuday Godhasara <abhyuday.godhasara@xilinx.com>
Change-Id: I82e924a77ee3afeb56fa18714e94cc4f6fff5a49
Upon recieving the interrupt send an SGI.
The sgi number is communicated by linux.
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Change-Id: Ib8f07ff7132ba5ac202b546914efb16d04820ed3
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Add support for the trapping the IPI in TF-A.
Register handler for the irq no 62 which is the IPI interrupt.
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Change-Id: I9c04fdae7be3dda6a34a9b196274c0b5fdf39223
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
BIT24 of IPI command header is used to determine if caller is
secure or non-secure.
Mark BIT24 of IPI command header as non-secure if SMC caller
is non-secure.
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Abhyuday Godhasara <abhyuday.godhasara@xilinx.com>
Change-Id: Iec25af8f4b202093f58e858ee47cd9cd46890267
Add support of register notifier.
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Change-Id: I41ef4c63abcc9aee552790b843adb25a5fd0c23e
Add support to get clock's rate value.
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Change-Id: I3ed881053ef323b2ca73e13edd0affda860d381d
Add support of set max latency, to change in the maximum powerup latency
requirements for a specific device currently used by Subsystem.
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Change-Id: I8749886abb1a7884a42c4d156d89c9cd562a5b1a
Add support to call InitFinalize API in Versal which calls
corresponding LibPM API.
Signed-off-by: Ravi Patel <ravi.patel@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Change-Id: I3428b7245b4db1ef6db8a90b7ad20b6e484ed3b2
For the current XilPM calls, The handler of IPI returns information
with 16 Bytes data.
So during QueryData API call for the ClockName and PinFunctionName,
response data(name of clock or function) response[0..3] are used to
return name. And status is not being returned for such API.
Updated XilPM calls reply in a consistent way and The handler of IPI
return information with 32Bytes data. Where response[0] always set
to status.
For the version-2 of QueryData API, during call for the ClockName
and PinFunctionName, response data(name of clock or function) get as
response[1...4].
To support both the version of QueryData API, added version based
compatibility by the use of feature check.
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Signed-off-by: Amit Sunil Dhamne <amit.sunil.dhamne@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Change-Id: I336128bff7bbe659903b0f8ce20ae6da7e3b51b4
pm_get_callbackdata() expect result count and not total bytes of
result. Correct it by passing result count to pm_get_callbackdata().
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: I01ce0002f7a753e81ea9fe65edde8420a13ed51a
This patch adds EEMI support for PM_GET_OPERATING_CHARACTERISTIC api id. This
interface obtains operating characteristic of a device from PMC firmware. The
'power', 'temperature', and 'latency' characteristic are the options that are
supported.
Signed-off-by: Saeed Nowshadi <saeed.nowshadi@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: If30959ba6a3a778a17df2a4281c2c09832cf7e92
Add support for Get_ChipID API in Versal which calls corresponding
LibPM API.
Signed-off-by: Ravi Patel <ravi.patel@xilinx.com>
Acked-by: Jolly Shah <jolly.shah@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: I25c4b301721d7989d982ac376c59195c55564022
This patch adds support for load pdi api to enable loading
pdi from linux.
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: I48549e276e1f7b9be45a0bebf559f73bd09d5f69
Add API to check availability of given API in ATF
as well as platform management controller and returns
the supported version number.
Signed-off-by: Ravi Patel <ravi.patel@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: I608b38f60b36c4d105b7a205ecb8b02de0c00f3c
Add GET_CALLBACK_DATA function to get IPI callback
data in Linux during init suspend callback.
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: Ieb60e561b5f656611f0702c43ba6a4296a012651
Implement set wakeup source API to pass SMC
call for set wakeup source to PLM (Platform Loader
and Manager).
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: I654ce07235c0fc7dfcb81bf98820153255f61537
Add PM_QUERY_DATA API to pass query data
EEMI call from Linux to PLM .
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: I18735b72ab9cb62fb6cbc7582e77de6cb57f99b0
PM_INIT_FINALIZE is not required for versal. To use Linux
Zynqmp PM driver for versal, handle PM_INIT_FINALIZE API
in ATF for versal by always returning SUCCESS.
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: I6fe5445d78e713d70282ac8931ff8b17c96b2a14
PM_GET_TRUSTZONE_VERSION API is required to use zynqmp-firmware
driver for versal. Add support of PM_GET_TRUSTZONE_VERSION API
for versal.
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: Ie1c859890096024cc8be67386e3fd0f5f8a4385f
Add PM IOCTL EEMI.
Below PLL related IOCTLs are not available in versal PLM.
* IOCTL_SET_PLL_FRAC_MODE
* IOCTL_GET_PLL_FRAC_MODE
* IOCTL_SET_PLL_FRAC_DATA
* IOCTL_SET_PLL_FRAC_DATA
PLM has new EEMI APIs for PLL related operations.
Call them instead of passing IOCTL API to PLM.
For other IOCTL, ATF just pass through IOCTL
request to PLM (Platform Loader and Manager).
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: I96f8da46a4d3965c9291b7b2da96056408137839
Add power down/restart related below API
- Force power down
- System shutdown
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: Icd4a922923b1fd50eca1f5361f1e604aedcdb529
Add SMC handler for EEMI API calls coming from EL1/EL2.
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: If0ef2a1f2cfc2747be6b91828371bcbec56b1e15
Port ZynqMP PM services for versal to send PM APIs to PMC
using IPI.
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Wendy Liang <wendy.liang@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: I27a52faf27f1a2919213498276a6885a177cb6da
Tanmay Shah
Venkatesh Yadav Abbarapu
Ronak Jain
Abhyuday Godhasara
Shubhrajyoti Datta
Tejas Patel
Ravi Patel
Rajan Vaja
Saeed Nowshadi
Jolly Shah