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| author | Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com> | 2022-05-09 12:33:03 +0100 |
|---|---|---|
| committer | Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com> | 2022-06-06 11:43:03 +0100 |
| commit | 1298f2f13d6d97dfcac120a2ee68d5eea3797068 (patch) | |
| tree | bf1b1da903dd38efcbc1b4524f8536c172528312 /common | |
| parent | 5e529e32ee6cf6ac9203ada4fade49a47893fa51 (diff) | |
| download | arm-trusted-firmware-1298f2f13d6d97dfcac120a2ee68d5eea3797068.tar.gz | |
feat(brbe): add brbe under feature detection mechanism
This change adds "FEAT_BRBE" to be part of feature detection mechanism.
Previously feature enablement flags were of boolean type, possessing
either 0 or 1. With the introduction of feature detection procedure
we now support three states for feature enablement build flags(0 to 2).
Accordingly, "ENABLE_BRBE_FOR_NS" flag is now modified from boolean
to numeric type to align with the feature detection.
Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
Change-Id: I1eb52863b4afb10b808e2f0b6584a8a210d0f38c
Diffstat (limited to 'common')
| -rw-r--r-- | common/feat_detect.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/common/feat_detect.c b/common/feat_detect.c index 8f98876ac..9d0685be6 100644 --- a/common/feat_detect.c +++ b/common/feat_detect.c @@ -234,6 +234,16 @@ static void read_feat_rme(void) #endif } +/****************************************************** + * Feature : FEAT_BRBE (Branch Record Buffer Extension) + *****************************************************/ +static void read_feat_brbe(void) +{ +#if (ENABLE_BRBE_FOR_NS == FEAT_STATE_1) + feat_detect_panic(is_feat_brbe_present(), "BRBE"); +#endif +} + /*********************************************************************************** * TF-A supports many Arm architectural features starting from arch version * (8.0 till 8.7+). These features are mostly enabled through build flags. This @@ -294,6 +304,9 @@ void detect_arch_features(void) /* v8.7 features */ read_feat_hcx(); + /* v9.0 features */ + read_feat_brbe(); + /* v9.2 features */ read_feat_rme(); } |