To initiate a reset or reboot, the nonsecure OS invokes the PSCI
SYSTEM_RESET function from any one core. As per the PSCI specification,
it is the responsibility of firmware to implement the system view of
the reset or reboot operation. For the platforms supported by CSS,
trigger the reset/reboot operation by sending an SGI to rest all CPUs
which are online. The CPUs respond to this interrupt by initiating its
powerdown sequence.
In addition to these changes, fix coding style issues that are not
directly related to the code being introduced in this patch.
Change-Id: I547253ee28ef7eefa78180d016893671a406bbfa
Signed-off-by: Pranav Madhu <pranav.madhu@arm.com>
Before issuing the system power down command, set the trusted mailbox
to 0. This will ensure that in the case of a warm/cold reset, the
primary CPU executes from the cold boot sequence, clearing any stale
jump address at this location.
Change-Id: I491ef5baf7a6728acd7e90e4558939ba77b8f9bf
Signed-off-by: Pranav Madhu <pranav.madhu@arm.com>
Currently the SCMI driver reports:
INFO: Initializing driver on Channel 0
on the console, which is not very specific (which driver?).
Add "SCMI" to the message so the user knows what the firmware is trying
to initialise.
Change-Id: Id8202655d07b8e12fe07670d462c6202e6eae2f0
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
The cpu index was wrongly checked causing it to assert always.
Since this code path is exercised only during TF test "NODE_HW_STAT",
which queries Power state from SCP, this bug was not detected earlier.
Change-Id: Ia25cef4c0aa23ed08092df39134937a2601c21ac
Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
On systems that have multiple platform components that can interpret the
SCMI messages, there is a need to support multiple SCMI channels (one
each to those platform components). Extend the existing SCMI interface
that currently supports only a single SCMI channel to support multiple
SCMI channels.
Change-Id: Ice4062475b903aef3b5e5bc37df364c9778a62c5
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>
NOTE for platform integrators:
API `plat_psci_stat_get_residency()` third argument
`last_cpu_idx` is changed from "signed int" to the
"unsigned int" type.
Issue / Trouble points
1. cpu_idx is used as mix of `unsigned int` and `signed int` in code
with typecasting at some places leading to coverity issues.
2. Underlying platform API's return cpu_idx as `unsigned int`
and comparison is performed with platform specific defines
`PLAFORM_xxx` which is not consistent
Misra Rule 10.4:
The value of a complex expression of integer type may only be cast to
a type that is narrower and of the same signedness as the underlying
type of the expression.
Based on above points, cpu_idx is kept as `unsigned int` to match
the API's and low-level functions and platform defines are updated
where ever required
Signed-off-by: Deepika Bhavnani <deepika.bhavnani@arm.com>
Change-Id: Ib26fd16e420c35527204b126b9b91e8babcc3a5c
Improved support for W=2 compilation flag by solving some nested-extern
and sign-compare warnings.
The libraries are compiling with warnings (which turn into errors with
the Werror flag).
Outside of libraries, some warnings cannot be fixed.
Change-Id: I06b1923857f2a6a50e93d62d0274915b268cef05
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>
