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Merge "feat(cpus): support to update External LLC presence in Neoverse N3" into integration

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Olivier Deprez 2024-05-10 07:55:59 +02:00 • committed by TrustedFirmware Code Review
commit 332b62e044
2 changed files with 6 additions and 0 deletions
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1
include/lib/cpus/aarch64/neoverse_n3.h
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@ -13,6 +13,7 @@
* CPU Extended Control register specific definitions * CPU Extended Control register specific definitions
******************************************************************************/ ******************************************************************************/
#define NEOVERSE_N3_CPUECTLR_EL1 S3_0_C15_C1_4 #define NEOVERSE_N3_CPUECTLR_EL1 S3_0_C15_C1_4
#define NEOVERSE_N3_CPUECTLR_EL1_EXTLLC_BIT (ULL(1) << 0)
/******************************************************************************* /*******************************************************************************
* CPU Power Control register specific definitions * CPU Power Control register specific definitions

5
lib/cpus/aarch64/neoverse_n3.S
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@ -24,6 +24,11 @@
cpu_reset_func_start neoverse_n3 cpu_reset_func_start neoverse_n3
/* Disable speculative loads */ /* Disable speculative loads */
msr SSBS, xzr msr SSBS, xzr
#if NEOVERSE_Nx_EXTERNAL_LLC
/* Some systems may have External LLC, core needs to be made aware */
sysreg_bit_set NEOVERSE_N3_CPUECTLR_EL1, NEOVERSE_N3_CPUECTLR_EL1_EXTLLC_BIT
#endif
cpu_reset_func_end neoverse_n3 cpu_reset_func_end neoverse_n3
/* ---------------------------------------------------- /* ----------------------------------------------------