Sammit Joshi 98859b9911 feat(per-cpu): integrate per-cpu framework into BL31/BL32 ...

Integrate per-cpu support into BL31/BL32 by extending the following
areas:

Zero-initialization: Treats per-cpu sections like .bss and clears them
during early C runtime initialization. For platforms that enable
NUMA_AWARE_PER_CPU, invokes a platform hook to zero-initialize
node-specific per-cpu regions.

Cache maintenance: Extends the BL31 exit path to clean dcache lines
covering the per-cpu region, ensuring data written by the primary core
is visible to secondary cores.

tpidr_el3 setup: Initializes tpidr_el3 with the base address of the
current CPU’s per-cpu section. This allows per-cpu framework to
resolve local cpu accesses efficiently.

The percpu_data object is currently stored in tpidr_el3. Since the
per-cpu framework will use tpidr_el3 for this-cpu access, percpu_data
must be migrated to avoid conflict.  This commit moves percpu_data to
the per-cpu framework.

Signed-off-by: Sammit Joshi <sammit.joshi@arm.com>
Signed-off-by: Rohit Mathew <rohit.mathew@arm.com>
Change-Id: Iff0c2e1f8c0ebd25c4bb0b09bfe15dd4fbe20561

2025-11-07 21:59:41 +05:30

..

optee

Remove references to old project name from common files

2019-07-10 11:13:00 +01:00

sp_min

feat(per-cpu): integrate per-cpu framework into BL31/BL32

2025-11-07 21:59:41 +05:30

tsp

feat(build): setting CRYPTO_LIB via CRYPTO_SUPPORT

2025-10-21 11:32:42 -05:00