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Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 467fe251d8..8e734fdfb4 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -361,6 +361,36 @@ config FSP_TEMP_RAM_ADDR Stack top address which is used in FspInit after DRAM is ready and CAR is disabled. +config MAX_CPUS + int "Maximum number of CPUs permitted" + default 4 + help + When using multi-CPU chips it is possible for U-Boot to start up + more than one CPU. The stack memory used by all of these CPUs is + pre-allocated so at present U-Boot wants to know the maximum + number of CPUs that may be present. Set this to at least as high + as the number of CPUs in your system (it uses about 4KB of RAM for + each CPU). + +config SMP + bool "Enable Symmetric Multiprocessing" + default n + help + Enable use of more than one CPU in U-Boot and the Operating System + when loaded. Each CPU will be started up and information can be + obtained using the 'cpu' command. If this option is disabled, then + only one CPU will be enabled regardless of the number of CPUs + available. + +config AP_STACK_SIZE + hex + default 0x1000 + help + Each additional CPU started by U-Boot requires its own stack. This + option sets the stack size used by each CPU and directly affects + the memory used by this initialisation process. Typically 4KB is + enough space. + config TSC_CALIBRATION_BYPASS bool "Bypass Time-Stamp Counter (TSC) calibration" default n |