tree 2a0aa42c2c688a6d0c5d0ce4a76e2d83194033e4
parent 6e2fd8b32ed7079f976270ca48e5c8b42e9a981d
author Boyan Karatotev <boyan.karatotev@arm.com> 1676305967 +0000
committer Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com> 1690193084 +0100

refactor(cm): set MDCR_EL3/CPTR_EL3 bits in respective feat_init_el3() only

These bits (MDCR_EL3.{NSTB, NSTBE, TTRF, TPM}, CPTR_EL3.TTA) only affect
EL2 (and lower) execution. Each feat_init_el3() is called long before
any lower EL has had a chance to execute, so setting the bits at reset
is redundant. Removing them from reset code also improves readability of
the immutable EL3 state.

Preserve the original intention for the TTA bit of "enabled for NS and
disabled everywhere else" (inferred from commit messages d4582d3088 and
2031d6166a and the comment). This is because CPTR_EL3 will be contexted
and so everyone will eventually get whatever NS has anyway.

Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: I3d24b45d3ea80882c8e450b2d9db9d5531facec1