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Unify type of "cpu_idx" across PSCI module.

Browse source 
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
This commit is contained in:
Deepika Bhavnani 2019-12-13 10:23:18 -06:00
parent 22d12c4148
commit 5b33ad174a
25 changed files with 99 additions and 90 deletions
Download patch file Download diff file Expand all files Collapse all files

2
include/lib/psci/psci.h
View file

@ -20,7 +20,7 @@
#ifdef PLAT_NUM_PWR_DOMAINS
#define PSCI_NUM_PWR_DOMAINS PLAT_NUM_PWR_DOMAINS
#else
#define PSCI_NUM_PWR_DOMAINS (2 * PLATFORM_CORE_COUNT)
#define PSCI_NUM_PWR_DOMAINS (U(2) * PLATFORM_CORE_COUNT)
#endif
#define PSCI_NUM_NON_CPU_PWR_DOMAINS (PSCI_NUM_PWR_DOMAINS - \