diff options
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/README.rst | 4 | ||||
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.rst | 1 | ||||
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 26 |
3 files changed, 23 insertions, 8 deletions
diff --git a/Documentation/admin-guide/README.rst b/Documentation/admin-guide/README.rst index af5a437198d0..155372b3b57f 100644 --- a/Documentation/admin-guide/README.rst +++ b/Documentation/admin-guide/README.rst @@ -26,8 +26,8 @@ On what hardware does it run? Although originally developed first for 32-bit x86-based PCs (386 or higher), today Linux also runs on (at least) the Compaq Alpha AXP, Sun SPARC and UltraSPARC, Motorola 68000, PowerPC, PowerPC64, ARM, Hitachi SuperH, Cell, - IBM S/390, MIPS, HP PA-RISC, Intel IA-64, DEC VAX, AMD x86-64, AXIS CRIS, - Xtensa, Tilera TILE, ARC and Renesas M32R architectures. + IBM S/390, MIPS, HP PA-RISC, Intel IA-64, DEC VAX, AMD x86-64 Xtensa, and + ARC architectures. Linux is easily portable to most general-purpose 32- or 64-bit architectures as long as they have a paged memory management unit (PMMU) and a port of the diff --git a/Documentation/admin-guide/kernel-parameters.rst b/Documentation/admin-guide/kernel-parameters.rst index 7242cbda15dd..b8d0bc07ed0a 100644 --- a/Documentation/admin-guide/kernel-parameters.rst +++ b/Documentation/admin-guide/kernel-parameters.rst @@ -89,7 +89,6 @@ parameter is applicable:: APM Advanced Power Management support is enabled. ARM ARM architecture is enabled. AX25 Appropriate AX.25 support is enabled. - BLACKFIN Blackfin architecture is enabled. CLK Common clock infrastructure is enabled. CMA Contiguous Memory Area support is enabled. DRM Direct Rendering Management support is enabled. diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 1d1d53f85ddd..bf03fe49f1ce 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1025,7 +1025,7 @@ address. The serial port must already be setup and configured. Options are not yet supported. - earlyprintk= [X86,SH,BLACKFIN,ARM,M68k,S390] + earlyprintk= [X86,SH,ARM,M68k,S390] earlyprintk=vga earlyprintk=efi earlyprintk=sclp @@ -1347,10 +1347,6 @@ If specified, z/VM IUCV HVC accepts connections from listed z/VM user IDs only. - hwthread_map= [METAG] Comma-separated list of Linux cpu id to - hardware thread id mappings. - Format: <cpu>:<hwthread> - keep_bootcon [KNL] Do not unregister boot console at start. This is only useful for debugging when something happens in the window @@ -1766,6 +1762,17 @@ nohz Disable the tick when a single task runs. + + A residual 1Hz tick is offloaded to workqueues, which you + need to affine to housekeeping through the global + workqueue's affinity configured via the + /sys/devices/virtual/workqueue/cpumask sysfs file, or + by using the 'domain' flag described below. + + NOTE: by default the global workqueue runs on all CPUs, + so to protect individual CPUs the 'cpumask' file has to + be configured manually after bootup. + domain Isolate from the general SMP balancing and scheduling algorithms. Note that performing domain isolation this way @@ -2237,6 +2244,15 @@ The memory region may be marked as e820 type 12 (0xc) and is NVDIMM or ADR memory. + memmap=<size>%<offset>-<oldtype>+<newtype> + [KNL,ACPI] Convert memory within the specified region + from <oldtype> to <newtype>. If "-<oldtype>" is left + out, the whole region will be marked as <newtype>, + even if previously unavailable. If "+<newtype>" is left + out, matching memory will be removed. Types are + specified as e820 types, e.g., 1 = RAM, 2 = reserved, + 3 = ACPI, 12 = PRAM. + memory_corruption_check=0/1 [X86] Some BIOSes seem to corrupt the first 64k of memory when doing things like suspend/resume. |