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| author | Andre Przywara <andre.przywara@arm.com> | 2022-11-17 16:42:09 +0000 |
|---|---|---|
| committer | Andre Przywara <andre.przywara@arm.com> | 2023-03-20 13:37:36 +0000 |
| commit | 6437a09a2db5774438fb1a95c508ed6b0a9f0ef2 (patch) | |
| tree | 831ab1562452ab1700c3e40684dd871fb4deb083 /include/lib | |
| parent | 90118bb5c180198db3386c3e1f5be8e32707c2cc (diff) | |
| download | arm-trusted-firmware-6437a09a2db5774438fb1a95c508ed6b0a9f0ef2.tar.gz | |
refactor(spe): enable FEAT_SPE for FEAT_STATE_CHECKED
At the moment we only support FEAT_SPE to be either unconditionally
compiled in, or to be not supported at all.
Add support for runtime detection (ENABLE_SPE_FOR_NS=2), by splitting
is_armv8_2_feat_spe_present() into an ID register reading function and
a second function to report the support status. That function considers
both build time settings and runtime information (if needed), and is
used before we access SPE related registers.
Previously SPE was enabled unconditionally for all platforms, change
this now to the runtime detection version.
Change-Id: I830c094107ce6a398bf1f4aef7ffcb79d4f36552
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Diffstat (limited to 'include/lib')
| -rw-r--r-- | include/lib/extensions/spe.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/lib/extensions/spe.h b/include/lib/extensions/spe.h index d4b925fe4..d443f18fb 100644 --- a/include/lib/extensions/spe.h +++ b/include/lib/extensions/spe.h @@ -9,8 +9,16 @@ #include <stdbool.h> -bool spe_supported(void); +#if ENABLE_SPE_FOR_NS void spe_enable(bool el2_unused); void spe_disable(void); +#else +void spe_enable(bool el2_unused) +{ +} +void spe_disable(void) +{ +} +#endif #endif /* SPE_H */ |