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140 lines
3.8 KiB
140 lines
3.8 KiB
# Copyright (c) 2016 Intel Corporation |
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# SPDX-License-Identifier: Apache-2.0 |
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menu "OS Support Library" |
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config FDTABLE |
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bool "File descriptor table" |
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help |
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This file provides generic file descriptor table implementation, suitable |
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for any I/O object implementing POSIX I/O semantics (i.e. read/write + |
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aux operations). |
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config ZVFS_OPEN_MAX |
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int "Maximum number of open file descriptors" |
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default 16 if WIFI_NM_WPA_SUPPLICANT |
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default 16 if POSIX_API |
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default 4 |
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help |
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Maximum number of open file descriptors, this includes |
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files, sockets, special devices, etc. |
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config PRINTK_SYNC |
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bool "Serialize printk() calls" |
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default y if SMP && MP_MAX_NUM_CPUS > 1 && !(EFI_CONSOLE && LOG) |
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help |
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When true, a spinlock will be taken around the output from a |
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single printk() call, preventing the output data from |
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interleaving with concurrent usage from another CPU or an |
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preempting interrupt. |
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config MPSC_PBUF |
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bool "Multi producer, single consumer packet buffer" |
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select TIMEOUT_64BIT |
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help |
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Enable usage of mpsc packet buffer. Packet buffer is capable of |
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storing variable length packets in a circular way and operate directly |
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on the buffer memory. |
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config SPSC_PBUF |
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bool "Single producer, single consumer packet buffer" |
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help |
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Enable usage of spsc packet buffer. Packet buffer is capable of |
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storing variable length packets in a circular way and operate directly |
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on the buffer memory. |
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if SPSC_PBUF |
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choice SPSC_PBUF_CACHE_HANDLING |
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prompt "Cache handling" |
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default SPSC_PBUF_CACHE_ALWAYS if SPSC_PBUF_USE_CACHE && !SPSC_PBUF_NO_CACHE |
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default SPSC_PBUF_CACHE_NEVER if !SPSC_PBUF_USE_CACHE && SPSC_PBUF_NO_CACHE |
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default SPSC_PBUF_CACHE_FLAG |
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config SPSC_PBUF_CACHE_FLAG |
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bool "Use cache flag" |
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help |
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Use instance specific configuration flag for cache handling. |
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config SPSC_PBUF_CACHE_ALWAYS |
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bool "Always handle cache" |
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help |
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Handle cache writeback and invalidation for all instances. Option used |
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to avoid runtime check and thus reduce memory footprint. Beware! It shall |
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be used only if all packet buffer instances are used for data sharing |
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between cores. |
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config SPSC_PBUF_CACHE_NEVER |
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bool "Never handle cache" |
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help |
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Discar cache handling for all instances. Option used to avoid runtime |
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check and thus reduce memory footprint. |
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endchoice |
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config SPSC_PBUF_USE_CACHE |
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bool |
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config SPSC_PBUF_NO_CACHE |
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bool |
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if SPSC_PBUF_CACHE_FLAG || SPSC_PBUF_CACHE_ALWAYS |
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config SPSC_PBUF_REMOTE_DCACHE_LINE |
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int "Remote cache line size" |
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default 32 |
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help |
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If a packet buffer is used for data sharing between two cores then |
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this value should be set to the data cache line size of the remote core. |
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If local data cache line is detected at runtime then it should be |
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maximum of local and remote line size. |
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endif # SPSC_PBUF_CACHE_FLAG || SPSC_PBUF_CACHE_ALWAYS |
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config SPSC_PBUF_UTILIZATION |
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bool "Track maximum utilization" |
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help |
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When enabled, maximum utilization is tracked which can be used to |
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determine the size of the packet buffer. |
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endif # SPSC_PBUF |
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if MPSC_PBUF |
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config MPSC_CLEAR_ALLOCATED |
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bool "Clear allocated packet" |
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help |
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When enabled packet space is zeroed before returning from allocation. |
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endif |
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if SCHED_DEADLINE |
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config P4WQ_INIT_STAGE_EARLY |
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bool "Early initialization of P4WQ threads" |
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help |
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Initialize P4WQ threads early so that the P4WQ can be used on devices |
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initialization sequence. |
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endif |
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config REBOOT |
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bool "Reboot functionality" |
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help |
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Enable the sys_reboot() API. Enabling this can drag in other subsystems |
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needed to perform a "safe" reboot (e.g. to stop the system clock before |
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issuing a reset). |
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config HAS_POWEROFF |
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bool |
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help |
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Option to signal that power off functionality is implemented. |
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config POWEROFF |
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bool "Power off functionality" |
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depends on HAS_POWEROFF |
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help |
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Enable support for system power off. |
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rsource "Kconfig.cbprintf" |
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rsource "zvfs/Kconfig" |
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endmenu
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