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arm-trusted-firmware/lib/cpus/aarch64
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Boyan Karatotev 7791ce21a6 perf(cpus): inline cpu_rev_var checks 
We strive to apply errata as close to reset as possible with as few
things enabled as possible. Importantly, the I-cache will not be
enabled. This means that repeated branches to these tiny functions must
be re-fetched all the way from memory each time which has glacial speed.
Cores are allowed to fetch things ahead of time though as long as
execution is fairly linear. So we can trade a little bit of space (3 to
7 instructions per erratum) to keep things linear and not have to go to
memory.

While we're at it, optimise the the cpu_rev_var_{ls, hs, range}
functions to take up less space. Dropping the moves allows for a bit of
assembly magic that produces the same result in 2 and 3 instructions
respectively.

Change-Id: I51608352f23b2244ea7a99e76c10892d257f12bf
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
2025-02-20 17:28:59 +00:00
..
a64fx.S refactor(cpus): remove cpu specific errata funcs 2024-07-26 11:19:52 +01:00
aem_generic.S refactor(cpus): remove cpu specific errata funcs 2024-07-26 11:19:52 +01:00
cortex_a35.S refactor(cpus): remove cpu specific errata funcs 2024-07-26 11:19:52 +01:00
cortex_a53.S refactor(cpus): remove cpu specific errata funcs 2024-07-26 11:19:52 +01:00
cortex_a55.S perf(cpus): inline cpu_rev_var checks 2025-02-20 17:28:59 +00:00
cortex_a57.S fix(cpus): declare reset errata correctly 2025-02-20 09:24:45 +00:00
cortex_a65.S refactor(cpus): register DSU errata with the errata framework's wrappers 2025-02-20 17:28:17 +00:00
cortex_a65ae.S refactor(cpus): register DSU errata with the errata framework's wrappers 2025-02-20 17:28:17 +00:00
cortex_a72.S refactor(cpus): remove cpu specific errata funcs 2024-07-26 11:19:52 +01:00
cortex_a73.S refactor(cpus): remove cpu specific errata funcs 2024-07-26 11:19:52 +01:00
cortex_a75.S refactor(cpus): register DSU errata with the errata framework's wrappers 2025-02-20 17:28:17 +00:00
cortex_a75_pubsub.c chore: update to use Arm word across TF-A 2023-08-08 15:12:30 +01:00
cortex_a76.S perf(cpus): inline cpu_rev_var checks 2025-02-20 17:28:59 +00:00
cortex_a76ae.S refactor(cpus): remove cpu specific errata funcs 2024-07-26 11:19:52 +01:00
cortex_a77.S perf(cpus): inline cpu_rev_var checks 2025-02-20 17:28:59 +00:00
cortex_a78.S fix(cpus): workaround for CVE-2024-5660 for Cortex-A78 2024-12-17 10:28:09 -06:00
cortex_a78_ae.S fix(cpus): workaround for CVE-2024-5660 for Cortex-A78_AE 2024-12-17 10:28:09 -06:00
cortex_a78c.S fix(cpus): workaround for CVE-2024-5660 for Cortex-A78C 2024-12-17 10:28:09 -06:00
cortex_a510.S refactor(cpus): register DSU errata with the errata framework's wrappers 2025-02-20 17:28:17 +00:00
cortex_a520.S refactor(cpus): convert checker functions to standard helpers 2025-02-20 09:24:46 +00:00
cortex_a710.S refactor(cpus): register DSU errata with the errata framework's wrappers 2025-02-20 17:28:17 +00:00
cortex_a715.S fix(cpus): workaround for Cortex-A715 erratum 3699560 2025-02-03 10:14:33 -06:00
cortex_a720.S fix(cpus): workaround for Cortex-A720 erratum 3699561 2025-02-03 13:57:26 -06:00
cortex_a720_ae.S fix(cpus): workaround for Cortex-A720-AE erratum 3699562 2025-02-03 13:57:50 -06:00
cortex_a725.S fix(cpus): workaround for Cortex-A725 erratum 3699564 2025-02-03 13:57:50 -06:00
cortex_alto.S fix(cpus): avoid SME related loss of context on powerdown 2025-02-03 14:29:47 +00:00
cortex_arcadia.S feat(cpus): add support for arcadia cpu 2024-10-17 09:34:03 -05:00
cortex_gelas.S fix(cpus): clear CPUPWRCTLR_EL1.CORE_PWRDN_EN_BIT on reset 2025-02-05 14:18:49 +00:00
cortex_x1.S fix(cpus): workaround for CVE-2024-5660 for Cortex-X1 2024-12-17 10:28:09 -06:00
cortex_x2.S refactor(cpus): register DSU errata with the errata framework's wrappers 2025-02-20 17:28:17 +00:00
cortex_x3.S fix(cpus): declare reset errata correctly 2025-02-20 09:24:45 +00:00
cortex_x4.S refactor(cpus): convert checker functions to standard helpers 2025-02-20 09:24:46 +00:00
cortex_x925.S fix(cpus): workaround for Cortex-X925 erratum 2963999 2025-02-12 09:25:06 -06:00
cpu_helpers.S perf(cpus): inline cpu_rev_var checks 2025-02-20 17:28:59 +00:00
cpuamu.c Sanitise includes across codebase 2019-01-04 10:43:17 +00:00
cpuamu_helpers.S chore: update to use Arm word across TF-A 2023-08-08 15:12:30 +01:00
denver.S refactor(cpus): remove cpu specific errata funcs 2024-07-26 11:19:52 +01:00
generic.S refactor(cpus): remove cpu specific errata funcs 2024-07-26 11:19:52 +01:00
neoverse_e1.S refactor(cpus): register DSU errata with the errata framework's wrappers 2025-02-20 17:28:17 +00:00
neoverse_n1.S refactor(cpus): register DSU errata with the errata framework's wrappers 2025-02-20 17:28:17 +00:00
neoverse_n1_pubsub.c chore: update to use Arm word across TF-A 2023-08-08 15:12:30 +01:00
neoverse_n2.S refactor(cpus): register DSU errata with the errata framework's wrappers 2025-02-20 17:28:17 +00:00
neoverse_n3.S fix(cpus): workaround for Neoverse-N3 erratum 3699563 2025-02-03 13:57:50 -06:00
neoverse_v1.S fix(cpus): declare reset errata correctly 2025-02-20 09:24:45 +00:00
neoverse_v2.S fix(security): apply SMCCC_ARCH_WORKAROUND_4 to affected cpus 2025-01-30 16:45:35 -06:00
neoverse_v3.S fix(cpus): workaround for Neoverse-V3 erratum 2970647 2025-02-12 09:25:06 -06:00
nevis.S refactor(cpus): remove cpu specific errata funcs 2024-07-26 11:19:52 +01:00
qemu_max.S refactor(cpus): remove cpu specific errata funcs 2024-07-26 11:19:52 +01:00
rainier.S refactor(cpus): remove cpu specific errata funcs 2024-07-26 11:19:52 +01:00
travis.S fix(cpus): clear CPUPWRCTLR_EL1.CORE_PWRDN_EN_BIT on reset 2025-02-05 14:18:49 +00:00
wa_cve_2017_5715_bpiall.S chore: update to use Arm word across TF-A 2023-08-08 15:12:30 +01:00
wa_cve_2017_5715_mmu.S chore: update to use Arm word across TF-A 2023-08-08 15:12:30 +01:00
wa_cve_2022_23960_bhb.S chore: update to use Arm word across TF-A 2023-08-08 15:12:30 +01:00
wa_cve_2022_23960_bhb_vector.S fix(security): workaround for CVE-2022-23960 2022-03-10 23:57:14 -06:00