Loading Documentation/kernel-parameters.txt +23 −0 Original line number Diff line number Diff line Loading @@ -610,6 +610,29 @@ and is between 256 and 4096 characters. It is defined in the file See drivers/char/README.epca and Documentation/digiepca.txt. disable_mtrr_cleanup [X86] enable_mtrr_cleanup [X86] The kernel tries to adjust MTRR layout from continuous to discrete, to make X server driver able to add WB entry later. This parameter enables/disables that. mtrr_chunk_size=nn[KMG] [X86] used for mtrr cleanup. It is largest continous chunk that could hold holes aka. UC entries. mtrr_gran_size=nn[KMG] [X86] Used for mtrr cleanup. It is granularity of mtrr block. Default is 1. Large value could prevent small alignment from using up MTRRs. mtrr_spare_reg_nr=n [X86] Format: <integer> Range: 0,7 : spare reg number Default : 1 Used for mtrr cleanup. It is spare mtrr entries number. Set to 2 or more if your graphical card needs more. disable_mtrr_trim [X86, Intel and AMD only] By default the kernel will trim any uncacheable memory out of your available memory pool based on Loading arch/x86/Kconfig +94 −41 Original line number Diff line number Diff line Loading @@ -230,6 +230,27 @@ config SMP If you don't know what to do here, say N. config X86_FIND_SMP_CONFIG def_bool y depends on X86_MPPARSE || X86_VOYAGER || X86_VISWS depends on X86_32 if ACPI config X86_MPPARSE def_bool y bool "Enable MPS table" depends on X86_LOCAL_APIC && !X86_VISWS help For old smp systems that do not have proper acpi support. Newer systems (esp with 64bit cpus) with acpi support, MADT and DSDT will override it endif if !ACPI config X86_MPPARSE def_bool y depends on X86_LOCAL_APIC && !X86_VISWS endif choice prompt "Subarchitecture Type" default X86_PC Loading Loading @@ -261,36 +282,6 @@ config X86_VOYAGER If you do not specifically know you have a Voyager based machine, say N here, otherwise the kernel you build will not be bootable. config X86_NUMAQ bool "NUMAQ (IBM/Sequent)" depends on SMP && X86_32 && PCI select NUMA help This option is used for getting Linux to run on a (IBM/Sequent) NUMA multiquad box. This changes the way that processors are bootstrapped, and uses Clustered Logical APIC addressing mode instead of Flat Logical. You will need a new lynxer.elf file to flash your firmware with - send email to <Martin.Bligh@us.ibm.com>. config X86_SUMMIT bool "Summit/EXA (IBM x440)" depends on X86_32 && SMP help This option is needed for IBM systems that use the Summit/EXA chipset. In particular, it is needed for the x440. If you don't have one of these computers, you should say N here. If you want to build a NUMA kernel, you must select ACPI. config X86_BIGSMP bool "Support for other sub-arch SMP systems with more than 8 CPUs" depends on X86_32 && SMP help This option is needed for the systems that have more than 8 CPUs and if the system is not of any sub-arch type above. If you don't have such a system, you should say N here. config X86_VISWS bool "SGI 320/540 (Visual Workstation)" depends on X86_32 && !PCI Loading @@ -304,12 +295,33 @@ config X86_VISWS and vice versa. See <file:Documentation/sgi-visws.txt> for details. config X86_GENERICARCH bool "Generic architecture (Summit, bigsmp, ES7000, default)" bool "Generic architecture" depends on X86_32 help This option compiles in the Summit, bigsmp, ES7000, default subarchitectures. It is intended for a generic binary kernel. If you want a NUMA kernel, select ACPI. We need SRAT for NUMA. This option compiles in the NUMAQ, Summit, bigsmp, ES7000, default subarchitectures. It is intended for a generic binary kernel. if you select them all, kernel will probe it one by one. and will fallback to default. if X86_GENERICARCH config X86_NUMAQ bool "NUMAQ (IBM/Sequent)" depends on SMP && X86_32 && PCI && X86_MPPARSE select NUMA help This option is used for getting Linux to run on a NUMAQ (IBM/Sequent) NUMA multiquad box. This changes the way that processors are bootstrapped, and uses Clustered Logical APIC addressing mode instead of Flat Logical. You will need a new lynxer.elf file to flash your firmware with - send email to <Martin.Bligh@us.ibm.com>. config X86_SUMMIT bool "Summit/EXA (IBM x440)" depends on X86_32 && SMP help This option is needed for IBM systems that use the Summit/EXA chipset. In particular, it is needed for the x440. config X86_ES7000 bool "Support for Unisys ES7000 IA32 series" Loading @@ -317,8 +329,15 @@ config X86_ES7000 help Support for Unisys ES7000 systems. Say 'Y' here if this kernel is supposed to run on an IA32-based Unisys ES7000 system. Only choose this option if you have such a system, otherwise you should say N here. config X86_BIGSMP bool "Support for big SMP systems with more than 8 CPUs" depends on X86_32 && SMP help This option is needed for the systems that have more than 8 CPUs and if the system is not of any sub-arch type above. endif config X86_RDC321X bool "RDC R-321x SoC" Loading Loading @@ -432,7 +451,7 @@ config MEMTEST config ACPI_SRAT def_bool y depends on X86_32 && ACPI && NUMA && (X86_SUMMIT || X86_GENERICARCH) depends on X86_32 && ACPI && NUMA && X86_GENERICARCH select ACPI_NUMA config HAVE_ARCH_PARSE_SRAT Loading @@ -441,11 +460,11 @@ config HAVE_ARCH_PARSE_SRAT config X86_SUMMIT_NUMA def_bool y depends on X86_32 && NUMA && (X86_SUMMIT || X86_GENERICARCH) depends on X86_32 && NUMA && X86_GENERICARCH config X86_CYCLONE_TIMER def_bool y depends on X86_32 && X86_SUMMIT || X86_GENERICARCH depends on X86_GENERICARCH config ES7000_CLUSTERED_APIC def_bool y Loading Loading @@ -910,9 +929,9 @@ config X86_PAE config NUMA bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)" depends on SMP depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || (X86_SUMMIT || X86_GENERICARCH) && ACPI) && EXPERIMENTAL) depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && EXPERIMENTAL) default n if X86_PC default y if (X86_NUMAQ || X86_SUMMIT) default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP) help Enable NUMA (Non Uniform Memory Access) support. The kernel will try to allocate memory used by a CPU on the Loading Loading @@ -1089,6 +1108,40 @@ config MTRR See <file:Documentation/mtrr.txt> for more information. config MTRR_SANITIZER def_bool y prompt "MTRR cleanup support" depends on MTRR help Convert MTRR layout from continuous to discrete, so some X driver could add WB entries. Say N here if you see bootup problems (boot crash, boot hang, spontaneous reboots). Could be disabled with disable_mtrr_cleanup. Also mtrr_chunk_size could be used to send largest mtrr entry size for continuous block to hold holes (aka. UC entries) If unsure, say Y. config MTRR_SANITIZER_ENABLE_DEFAULT int "MTRR cleanup enable value (0-1)" range 0 1 default "0" depends on MTRR_SANITIZER help Enable mtrr cleanup default value config MTRR_SANITIZER_SPARE_REG_NR_DEFAULT int "MTRR cleanup spare reg num (0-7)" range 0 7 default "1" depends on MTRR_SANITIZER help mtrr cleanup spare entries default, it can be changed via mtrr_spare_reg_nr= config X86_PAT bool prompt "x86 PAT support" Loading arch/x86/Kconfig.debug +0 −9 Original line number Diff line number Diff line Loading @@ -137,15 +137,6 @@ config 4KSTACKS on the VM subsystem for higher order allocations. This option will also use IRQ stacks to compensate for the reduced stackspace. config X86_FIND_SMP_CONFIG def_bool y depends on X86_LOCAL_APIC || X86_VOYAGER depends on X86_32 config X86_MPPARSE def_bool y depends on (X86_32 && (X86_LOCAL_APIC && !X86_VISWS)) || X86_64 config DOUBLEFAULT default y bool "Enable doublefault exception handler" if EMBEDDED Loading arch/x86/Makefile +1 −18 Original line number Diff line number Diff line Loading @@ -117,29 +117,11 @@ mcore-$(CONFIG_X86_VOYAGER) := arch/x86/mach-voyager/ mflags-$(CONFIG_X86_VISWS) := -Iinclude/asm-x86/mach-visws mcore-$(CONFIG_X86_VISWS) := arch/x86/mach-visws/ # NUMAQ subarch support mflags-$(CONFIG_X86_NUMAQ) := -Iinclude/asm-x86/mach-numaq mcore-$(CONFIG_X86_NUMAQ) := arch/x86/mach-default/ # BIGSMP subarch support mflags-$(CONFIG_X86_BIGSMP) := -Iinclude/asm-x86/mach-bigsmp mcore-$(CONFIG_X86_BIGSMP) := arch/x86/mach-default/ #Summit subarch support mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-x86/mach-summit mcore-$(CONFIG_X86_SUMMIT) := arch/x86/mach-default/ # generic subarchitecture mflags-$(CONFIG_X86_GENERICARCH):= -Iinclude/asm-x86/mach-generic fcore-$(CONFIG_X86_GENERICARCH) += arch/x86/mach-generic/ mcore-$(CONFIG_X86_GENERICARCH) := arch/x86/mach-default/ # ES7000 subarch support mflags-$(CONFIG_X86_ES7000) := -Iinclude/asm-x86/mach-es7000 fcore-$(CONFIG_X86_ES7000) := arch/x86/mach-es7000/ mcore-$(CONFIG_X86_ES7000) := arch/x86/mach-default/ # RDC R-321x subarch support mflags-$(CONFIG_X86_RDC321X) := -Iinclude/asm-x86/mach-rdc321x mcore-$(CONFIG_X86_RDC321X) := arch/x86/mach-default/ Loading @@ -160,6 +142,7 @@ KBUILD_AFLAGS += $(mflags-y) head-y := arch/x86/kernel/head_$(BITS).o head-y += arch/x86/kernel/head$(BITS).o head-y += arch/x86/kernel/head.o head-y += arch/x86/kernel/init_task.o libs-y += arch/x86/lib/ Loading arch/x86/boot/compressed/misc.c +0 −4 Original line number Diff line number Diff line Loading @@ -218,10 +218,6 @@ static char *vidmem; static int vidport; static int lines, cols; #ifdef CONFIG_X86_NUMAQ void *xquad_portio; #endif #include "../../../../lib/inflate.c" static void *malloc(int size) Loading Loading
Documentation/kernel-parameters.txt +23 −0 Original line number Diff line number Diff line Loading @@ -610,6 +610,29 @@ and is between 256 and 4096 characters. It is defined in the file See drivers/char/README.epca and Documentation/digiepca.txt. disable_mtrr_cleanup [X86] enable_mtrr_cleanup [X86] The kernel tries to adjust MTRR layout from continuous to discrete, to make X server driver able to add WB entry later. This parameter enables/disables that. mtrr_chunk_size=nn[KMG] [X86] used for mtrr cleanup. It is largest continous chunk that could hold holes aka. UC entries. mtrr_gran_size=nn[KMG] [X86] Used for mtrr cleanup. It is granularity of mtrr block. Default is 1. Large value could prevent small alignment from using up MTRRs. mtrr_spare_reg_nr=n [X86] Format: <integer> Range: 0,7 : spare reg number Default : 1 Used for mtrr cleanup. It is spare mtrr entries number. Set to 2 or more if your graphical card needs more. disable_mtrr_trim [X86, Intel and AMD only] By default the kernel will trim any uncacheable memory out of your available memory pool based on Loading
arch/x86/Kconfig +94 −41 Original line number Diff line number Diff line Loading @@ -230,6 +230,27 @@ config SMP If you don't know what to do here, say N. config X86_FIND_SMP_CONFIG def_bool y depends on X86_MPPARSE || X86_VOYAGER || X86_VISWS depends on X86_32 if ACPI config X86_MPPARSE def_bool y bool "Enable MPS table" depends on X86_LOCAL_APIC && !X86_VISWS help For old smp systems that do not have proper acpi support. Newer systems (esp with 64bit cpus) with acpi support, MADT and DSDT will override it endif if !ACPI config X86_MPPARSE def_bool y depends on X86_LOCAL_APIC && !X86_VISWS endif choice prompt "Subarchitecture Type" default X86_PC Loading Loading @@ -261,36 +282,6 @@ config X86_VOYAGER If you do not specifically know you have a Voyager based machine, say N here, otherwise the kernel you build will not be bootable. config X86_NUMAQ bool "NUMAQ (IBM/Sequent)" depends on SMP && X86_32 && PCI select NUMA help This option is used for getting Linux to run on a (IBM/Sequent) NUMA multiquad box. This changes the way that processors are bootstrapped, and uses Clustered Logical APIC addressing mode instead of Flat Logical. You will need a new lynxer.elf file to flash your firmware with - send email to <Martin.Bligh@us.ibm.com>. config X86_SUMMIT bool "Summit/EXA (IBM x440)" depends on X86_32 && SMP help This option is needed for IBM systems that use the Summit/EXA chipset. In particular, it is needed for the x440. If you don't have one of these computers, you should say N here. If you want to build a NUMA kernel, you must select ACPI. config X86_BIGSMP bool "Support for other sub-arch SMP systems with more than 8 CPUs" depends on X86_32 && SMP help This option is needed for the systems that have more than 8 CPUs and if the system is not of any sub-arch type above. If you don't have such a system, you should say N here. config X86_VISWS bool "SGI 320/540 (Visual Workstation)" depends on X86_32 && !PCI Loading @@ -304,12 +295,33 @@ config X86_VISWS and vice versa. See <file:Documentation/sgi-visws.txt> for details. config X86_GENERICARCH bool "Generic architecture (Summit, bigsmp, ES7000, default)" bool "Generic architecture" depends on X86_32 help This option compiles in the Summit, bigsmp, ES7000, default subarchitectures. It is intended for a generic binary kernel. If you want a NUMA kernel, select ACPI. We need SRAT for NUMA. This option compiles in the NUMAQ, Summit, bigsmp, ES7000, default subarchitectures. It is intended for a generic binary kernel. if you select them all, kernel will probe it one by one. and will fallback to default. if X86_GENERICARCH config X86_NUMAQ bool "NUMAQ (IBM/Sequent)" depends on SMP && X86_32 && PCI && X86_MPPARSE select NUMA help This option is used for getting Linux to run on a NUMAQ (IBM/Sequent) NUMA multiquad box. This changes the way that processors are bootstrapped, and uses Clustered Logical APIC addressing mode instead of Flat Logical. You will need a new lynxer.elf file to flash your firmware with - send email to <Martin.Bligh@us.ibm.com>. config X86_SUMMIT bool "Summit/EXA (IBM x440)" depends on X86_32 && SMP help This option is needed for IBM systems that use the Summit/EXA chipset. In particular, it is needed for the x440. config X86_ES7000 bool "Support for Unisys ES7000 IA32 series" Loading @@ -317,8 +329,15 @@ config X86_ES7000 help Support for Unisys ES7000 systems. Say 'Y' here if this kernel is supposed to run on an IA32-based Unisys ES7000 system. Only choose this option if you have such a system, otherwise you should say N here. config X86_BIGSMP bool "Support for big SMP systems with more than 8 CPUs" depends on X86_32 && SMP help This option is needed for the systems that have more than 8 CPUs and if the system is not of any sub-arch type above. endif config X86_RDC321X bool "RDC R-321x SoC" Loading Loading @@ -432,7 +451,7 @@ config MEMTEST config ACPI_SRAT def_bool y depends on X86_32 && ACPI && NUMA && (X86_SUMMIT || X86_GENERICARCH) depends on X86_32 && ACPI && NUMA && X86_GENERICARCH select ACPI_NUMA config HAVE_ARCH_PARSE_SRAT Loading @@ -441,11 +460,11 @@ config HAVE_ARCH_PARSE_SRAT config X86_SUMMIT_NUMA def_bool y depends on X86_32 && NUMA && (X86_SUMMIT || X86_GENERICARCH) depends on X86_32 && NUMA && X86_GENERICARCH config X86_CYCLONE_TIMER def_bool y depends on X86_32 && X86_SUMMIT || X86_GENERICARCH depends on X86_GENERICARCH config ES7000_CLUSTERED_APIC def_bool y Loading Loading @@ -910,9 +929,9 @@ config X86_PAE config NUMA bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)" depends on SMP depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || (X86_SUMMIT || X86_GENERICARCH) && ACPI) && EXPERIMENTAL) depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && EXPERIMENTAL) default n if X86_PC default y if (X86_NUMAQ || X86_SUMMIT) default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP) help Enable NUMA (Non Uniform Memory Access) support. The kernel will try to allocate memory used by a CPU on the Loading Loading @@ -1089,6 +1108,40 @@ config MTRR See <file:Documentation/mtrr.txt> for more information. config MTRR_SANITIZER def_bool y prompt "MTRR cleanup support" depends on MTRR help Convert MTRR layout from continuous to discrete, so some X driver could add WB entries. Say N here if you see bootup problems (boot crash, boot hang, spontaneous reboots). Could be disabled with disable_mtrr_cleanup. Also mtrr_chunk_size could be used to send largest mtrr entry size for continuous block to hold holes (aka. UC entries) If unsure, say Y. config MTRR_SANITIZER_ENABLE_DEFAULT int "MTRR cleanup enable value (0-1)" range 0 1 default "0" depends on MTRR_SANITIZER help Enable mtrr cleanup default value config MTRR_SANITIZER_SPARE_REG_NR_DEFAULT int "MTRR cleanup spare reg num (0-7)" range 0 7 default "1" depends on MTRR_SANITIZER help mtrr cleanup spare entries default, it can be changed via mtrr_spare_reg_nr= config X86_PAT bool prompt "x86 PAT support" Loading
arch/x86/Kconfig.debug +0 −9 Original line number Diff line number Diff line Loading @@ -137,15 +137,6 @@ config 4KSTACKS on the VM subsystem for higher order allocations. This option will also use IRQ stacks to compensate for the reduced stackspace. config X86_FIND_SMP_CONFIG def_bool y depends on X86_LOCAL_APIC || X86_VOYAGER depends on X86_32 config X86_MPPARSE def_bool y depends on (X86_32 && (X86_LOCAL_APIC && !X86_VISWS)) || X86_64 config DOUBLEFAULT default y bool "Enable doublefault exception handler" if EMBEDDED Loading
arch/x86/Makefile +1 −18 Original line number Diff line number Diff line Loading @@ -117,29 +117,11 @@ mcore-$(CONFIG_X86_VOYAGER) := arch/x86/mach-voyager/ mflags-$(CONFIG_X86_VISWS) := -Iinclude/asm-x86/mach-visws mcore-$(CONFIG_X86_VISWS) := arch/x86/mach-visws/ # NUMAQ subarch support mflags-$(CONFIG_X86_NUMAQ) := -Iinclude/asm-x86/mach-numaq mcore-$(CONFIG_X86_NUMAQ) := arch/x86/mach-default/ # BIGSMP subarch support mflags-$(CONFIG_X86_BIGSMP) := -Iinclude/asm-x86/mach-bigsmp mcore-$(CONFIG_X86_BIGSMP) := arch/x86/mach-default/ #Summit subarch support mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-x86/mach-summit mcore-$(CONFIG_X86_SUMMIT) := arch/x86/mach-default/ # generic subarchitecture mflags-$(CONFIG_X86_GENERICARCH):= -Iinclude/asm-x86/mach-generic fcore-$(CONFIG_X86_GENERICARCH) += arch/x86/mach-generic/ mcore-$(CONFIG_X86_GENERICARCH) := arch/x86/mach-default/ # ES7000 subarch support mflags-$(CONFIG_X86_ES7000) := -Iinclude/asm-x86/mach-es7000 fcore-$(CONFIG_X86_ES7000) := arch/x86/mach-es7000/ mcore-$(CONFIG_X86_ES7000) := arch/x86/mach-default/ # RDC R-321x subarch support mflags-$(CONFIG_X86_RDC321X) := -Iinclude/asm-x86/mach-rdc321x mcore-$(CONFIG_X86_RDC321X) := arch/x86/mach-default/ Loading @@ -160,6 +142,7 @@ KBUILD_AFLAGS += $(mflags-y) head-y := arch/x86/kernel/head_$(BITS).o head-y += arch/x86/kernel/head$(BITS).o head-y += arch/x86/kernel/head.o head-y += arch/x86/kernel/init_task.o libs-y += arch/x86/lib/ Loading
arch/x86/boot/compressed/misc.c +0 −4 Original line number Diff line number Diff line Loading @@ -218,10 +218,6 @@ static char *vidmem; static int vidport; static int lines, cols; #ifdef CONFIG_X86_NUMAQ void *xquad_portio; #endif #include "../../../../lib/inflate.c" static void *malloc(int size) Loading