Loading Documentation/cachetlb.txt +1 −1 Original line number Diff line number Diff line Loading @@ -253,7 +253,7 @@ Here are the routines, one by one: The first of these two routines is invoked after map_vm_area() has installed the page table entries. The second is invoked before unmap_vm_area() deletes the page table entries. before unmap_kernel_range() deletes the page table entries. There exists another whole class of cpu cache issues which currently require a whole different set of interfaces to handle properly. Loading Documentation/feature-removal-schedule.txt +12 −0 Original line number Diff line number Diff line Loading @@ -330,3 +330,15 @@ Who: Tejun Heo <htejun@gmail.com> --------------------------- What: The arch/ppc and include/asm-ppc directories When: Jun 2008 Why: The arch/powerpc tree is the merged architecture for ppc32 and ppc64 platforms. Currently there are efforts underway to port the remaining arch/ppc platforms to the merged tree. New submissions to the arch/ppc tree have been frozen with the 2.6.22 kernel release and that tree will remain in bug-fix only mode until its scheduled removal. Platforms that are not ported by June 2008 will be removed due to the lack of an interested maintainer. Who: linuxppc-dev@ozlabs.org --------------------------- Documentation/powerpc/booting-without-of.txt +38 −2 Original line number Diff line number Diff line Loading @@ -42,15 +42,16 @@ Table of Contents 1) Defining child nodes of an SOC 2) Representing devices without a current OF specification a) MDIO IO device c) PHY nodes b) Gianfar-compatible ethernet nodes c) PHY nodes d) Interrupt controllers e) I2C f) Freescale SOC USB controllers g) Freescale SOC SEC Security Engines h) Board Control and Status (BCSR) i) Freescale QUICC Engine module (QE) g) Flash chip nodes j) Flash chip nodes k) Global Utilities Block VII - Specifying interrupt information for devices 1) interrupts property Loading Loading @@ -626,6 +627,14 @@ So the node content can be summarized as a start token, a full path, a list of properties, a list of child nodes, and an end token. Every child node is a full node structure itself as defined above. NOTE: The above definition requires that all property definitions for a particular node MUST precede any subnode definitions for that node. Although the structure would not be ambiguous if properties and subnodes were intermingled, the kernel parser requires that the properties come first (up until at least 2.6.22). Any tools manipulating a flattened tree must take care to preserve this constraint. 4) Device tree "strings" block In order to save space, property names, which are generally redundant, Loading Loading @@ -1782,6 +1791,33 @@ platforms are moved over to use the flattened-device-tree model. partition-names = "fs\0firmware"; }; k) Global Utilities Block The global utilities block controls power management, I/O device enabling, power-on-reset configuration monitoring, general-purpose I/O signal configuration, alternate function selection for multiplexed signals, and clock control. Required properties: - compatible : Should define the compatible device type for global-utilities. - reg : Offset and length of the register set for the device. Recommended properties: - fsl,has-rstcr : Indicates that the global utilities register set contains a functioning "reset control register" (i.e. the board is wired to reset upon setting the HRESET_REQ bit in this register). Example: global-utilities@e0000 { /* global utilities block */ compatible = "fsl,mpc8548-guts"; reg = <e0000 1000>; fsl,has-rstcr; }; More devices will be defined as this spec matures. VII - Specifying interrupt information for devices Loading arch/powerpc/Kconfig +4 −263 Original line number Diff line number Diff line Loading @@ -4,17 +4,7 @@ mainmenu "Linux/PowerPC Kernel Configuration" config PPC64 bool "64-bit kernel" default n help This option selects whether a 32-bit or a 64-bit kernel will be built. config PPC_PM_NEEDS_RTC_LIB bool select RTC_LIB default y if PM source "arch/powerpc/platforms/Kconfig.cputype" config PPC32 bool Loading Loading @@ -132,123 +122,6 @@ config PPC64_SWSUSP depends on PPC64 && (BROKEN || (PPC_PMAC64 && EXPERIMENTAL)) default y menu "Processor support" choice prompt "Processor Type" depends on PPC32 default 6xx config CLASSIC32 bool "52xx/6xx/7xx/74xx" select PPC_FPU select 6xx help There are four families of PowerPC chips supported. The more common types (601, 603, 604, 740, 750, 7400), the Motorola embedded versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC embedded versions (403 and 405) and the high end 64 bit Power processors (POWER 3, POWER4, and IBM PPC970 also known as G5). This option is the catch-all for 6xx types, including some of the embedded versions. Unless there is see an option for the specific chip family you are using, you want this option. You do not want this if you are building a kernel for a 64 bit IBM RS/6000 or an Apple G5, choose 6xx. If unsure, select this option Note that the kernel runs in 32-bit mode even on 64-bit chips. config PPC_82xx bool "Freescale 82xx" select 6xx select PPC_FPU config PPC_83xx bool "Freescale 83xx" select 6xx select FSL_SOC select 83xx select PPC_FPU select WANT_DEVICE_TREE config PPC_85xx bool "Freescale 85xx" select E500 select FSL_SOC select 85xx select WANT_DEVICE_TREE config PPC_86xx bool "Freescale 86xx" select 6xx select FSL_SOC select FSL_PCIE select PPC_FPU select ALTIVEC help The Freescale E600 SoCs have 74xx cores. config PPC_8xx bool "Freescale 8xx" select FSL_SOC select 8xx config 40x bool "AMCC 40x" select PPC_DCR_NATIVE config 44x bool "AMCC 44x" select PPC_DCR_NATIVE select WANT_DEVICE_TREE config E200 bool "Freescale e200" endchoice config POWER4_ONLY bool "Optimize for POWER4" depends on PPC64 default n ---help--- Cause the compiler to optimize for POWER4/POWER5/PPC970 processors. The resulting binary will not work on POWER3 or RS64 processors when compiled with binutils 2.15 or later. config POWER3 bool depends on PPC64 default y if !POWER4_ONLY config POWER4 depends on PPC64 def_bool y config 6xx bool # this is temp to handle compat with arch=ppc config 8xx bool # this is temp to handle compat with arch=ppc config 83xx bool # this is temp to handle compat with arch=ppc config 85xx bool config E500 bool config PPC_FPU bool default y if PPC64 config PPC_DCR_NATIVE bool default n Loading @@ -267,134 +140,6 @@ config PPC_OF_PLATFORM_PCI depends on PPC64 # not supported on 32 bits yet default n config 4xx bool depends on 40x || 44x default y config BOOKE bool depends on E200 || E500 || 44x default y config FSL_BOOKE bool depends on E200 || E500 default y config PTE_64BIT bool depends on 44x || E500 default y if 44x default y if E500 && PHYS_64BIT config PHYS_64BIT bool 'Large physical address support' if E500 depends on 44x || E500 select RESOURCES_64BIT default y if 44x ---help--- This option enables kernel support for larger than 32-bit physical addresses. This features is not be available on all e500 cores. If in doubt, say N here. config ALTIVEC bool "AltiVec Support" depends on CLASSIC32 || POWER4 ---help--- This option enables kernel support for the Altivec extensions to the PowerPC processor. The kernel currently supports saving and restoring altivec registers, and turning on the 'altivec enable' bit so user processes can execute altivec instructions. This option is only usefully if you have a processor that supports altivec (G4, otherwise known as 74xx series), but does not have any affect on a non-altivec cpu (it does, however add code to the kernel). If in doubt, say Y here. config SPE bool "SPE Support" depends on E200 || E500 default y ---help--- This option enables kernel support for the Signal Processing Extensions (SPE) to the PowerPC processor. The kernel currently supports saving and restoring SPE registers, and turning on the 'spe enable' bit so user processes can execute SPE instructions. This option is only useful if you have a processor that supports SPE (e500, otherwise known as 85xx series), but does not have any effect on a non-spe cpu (it does, however add code to the kernel). If in doubt, say Y here. config PPC_STD_MMU bool depends on 6xx || POWER3 || POWER4 || PPC64 default y config PPC_STD_MMU_32 def_bool y depends on PPC_STD_MMU && PPC32 config PPC_MM_SLICES bool default y if HUGETLB_PAGE default n config VIRT_CPU_ACCOUNTING bool "Deterministic task and CPU time accounting" depends on PPC64 default y help Select this option to enable more accurate task and CPU time accounting. This is done by reading a CPU counter on each kernel entry and exit and on transitions within the kernel between system, softirq and hardirq state, so there is a small performance impact. This also enables accounting of stolen time on logically-partitioned systems running on IBM POWER5-based machines. If in doubt, say Y here. config SMP depends on PPC_STD_MMU bool "Symmetric multi-processing support" ---help--- This enables support for systems with more than one CPU. If you have a system with only one CPU, say N. If you have a system with more than one CPU, say Y. Note that the kernel does not currently support SMP machines with 603/603e/603ev or PPC750 ("G3") processors since they have inadequate hardware support for multiprocessor operation. If you say N here, the kernel will run on single and multiprocessor machines, but will use only one CPU of a multiprocessor machine. If you say Y here, the kernel will run on single-processor machines. On a single-processor machine, the kernel will run faster if you say N here. If you don't know what to do here, say N. config NR_CPUS int "Maximum number of CPUs (2-128)" range 2 128 depends on SMP default "32" if PPC64 default "4" config NOT_COHERENT_CACHE bool depends on 4xx || 8xx || E200 default y config CONFIG_CHECK_CACHE_COHERENCY bool endmenu source "init/Kconfig" source "arch/powerpc/platforms/Kconfig" Loading Loading @@ -674,10 +419,6 @@ config SBUS config FSL_SOC bool config FSL_PCIE bool depends on PPC_86xx # Yes MCA RS/6000s exist but Linux-PPC does not currently support any config MCA bool Loading @@ -685,10 +426,10 @@ config MCA config PCI bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \ || PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \ || MPC7448HPC2 || PPC_PS3 || PPC_HOLLY default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx \ || PPC_PS3 default y if !40x && !CPM2 && !8xx && !PPC_83xx \ && !PPC_85xx && !PPC_86xx default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS default PCI_PERMEDIA if !4xx && !CPM2 && !8xx default PCI_QSPAN if !4xx && !CPM2 && 8xx select ARCH_SUPPORTS_MSI help Loading arch/powerpc/Makefile +1 −1 Original line number Diff line number Diff line Loading @@ -148,7 +148,7 @@ all: $(KBUILD_IMAGE) CPPFLAGS_vmlinux.lds := -Upowerpc BOOT_TARGETS = zImage zImage.initrd zImage.dts zImage.dts_initrd uImage BOOT_TARGETS = zImage zImage.initrd uImage PHONY += $(BOOT_TARGETS) Loading Loading
Documentation/cachetlb.txt +1 −1 Original line number Diff line number Diff line Loading @@ -253,7 +253,7 @@ Here are the routines, one by one: The first of these two routines is invoked after map_vm_area() has installed the page table entries. The second is invoked before unmap_vm_area() deletes the page table entries. before unmap_kernel_range() deletes the page table entries. There exists another whole class of cpu cache issues which currently require a whole different set of interfaces to handle properly. Loading
Documentation/feature-removal-schedule.txt +12 −0 Original line number Diff line number Diff line Loading @@ -330,3 +330,15 @@ Who: Tejun Heo <htejun@gmail.com> --------------------------- What: The arch/ppc and include/asm-ppc directories When: Jun 2008 Why: The arch/powerpc tree is the merged architecture for ppc32 and ppc64 platforms. Currently there are efforts underway to port the remaining arch/ppc platforms to the merged tree. New submissions to the arch/ppc tree have been frozen with the 2.6.22 kernel release and that tree will remain in bug-fix only mode until its scheduled removal. Platforms that are not ported by June 2008 will be removed due to the lack of an interested maintainer. Who: linuxppc-dev@ozlabs.org ---------------------------
Documentation/powerpc/booting-without-of.txt +38 −2 Original line number Diff line number Diff line Loading @@ -42,15 +42,16 @@ Table of Contents 1) Defining child nodes of an SOC 2) Representing devices without a current OF specification a) MDIO IO device c) PHY nodes b) Gianfar-compatible ethernet nodes c) PHY nodes d) Interrupt controllers e) I2C f) Freescale SOC USB controllers g) Freescale SOC SEC Security Engines h) Board Control and Status (BCSR) i) Freescale QUICC Engine module (QE) g) Flash chip nodes j) Flash chip nodes k) Global Utilities Block VII - Specifying interrupt information for devices 1) interrupts property Loading Loading @@ -626,6 +627,14 @@ So the node content can be summarized as a start token, a full path, a list of properties, a list of child nodes, and an end token. Every child node is a full node structure itself as defined above. NOTE: The above definition requires that all property definitions for a particular node MUST precede any subnode definitions for that node. Although the structure would not be ambiguous if properties and subnodes were intermingled, the kernel parser requires that the properties come first (up until at least 2.6.22). Any tools manipulating a flattened tree must take care to preserve this constraint. 4) Device tree "strings" block In order to save space, property names, which are generally redundant, Loading Loading @@ -1782,6 +1791,33 @@ platforms are moved over to use the flattened-device-tree model. partition-names = "fs\0firmware"; }; k) Global Utilities Block The global utilities block controls power management, I/O device enabling, power-on-reset configuration monitoring, general-purpose I/O signal configuration, alternate function selection for multiplexed signals, and clock control. Required properties: - compatible : Should define the compatible device type for global-utilities. - reg : Offset and length of the register set for the device. Recommended properties: - fsl,has-rstcr : Indicates that the global utilities register set contains a functioning "reset control register" (i.e. the board is wired to reset upon setting the HRESET_REQ bit in this register). Example: global-utilities@e0000 { /* global utilities block */ compatible = "fsl,mpc8548-guts"; reg = <e0000 1000>; fsl,has-rstcr; }; More devices will be defined as this spec matures. VII - Specifying interrupt information for devices Loading
arch/powerpc/Kconfig +4 −263 Original line number Diff line number Diff line Loading @@ -4,17 +4,7 @@ mainmenu "Linux/PowerPC Kernel Configuration" config PPC64 bool "64-bit kernel" default n help This option selects whether a 32-bit or a 64-bit kernel will be built. config PPC_PM_NEEDS_RTC_LIB bool select RTC_LIB default y if PM source "arch/powerpc/platforms/Kconfig.cputype" config PPC32 bool Loading Loading @@ -132,123 +122,6 @@ config PPC64_SWSUSP depends on PPC64 && (BROKEN || (PPC_PMAC64 && EXPERIMENTAL)) default y menu "Processor support" choice prompt "Processor Type" depends on PPC32 default 6xx config CLASSIC32 bool "52xx/6xx/7xx/74xx" select PPC_FPU select 6xx help There are four families of PowerPC chips supported. The more common types (601, 603, 604, 740, 750, 7400), the Motorola embedded versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC embedded versions (403 and 405) and the high end 64 bit Power processors (POWER 3, POWER4, and IBM PPC970 also known as G5). This option is the catch-all for 6xx types, including some of the embedded versions. Unless there is see an option for the specific chip family you are using, you want this option. You do not want this if you are building a kernel for a 64 bit IBM RS/6000 or an Apple G5, choose 6xx. If unsure, select this option Note that the kernel runs in 32-bit mode even on 64-bit chips. config PPC_82xx bool "Freescale 82xx" select 6xx select PPC_FPU config PPC_83xx bool "Freescale 83xx" select 6xx select FSL_SOC select 83xx select PPC_FPU select WANT_DEVICE_TREE config PPC_85xx bool "Freescale 85xx" select E500 select FSL_SOC select 85xx select WANT_DEVICE_TREE config PPC_86xx bool "Freescale 86xx" select 6xx select FSL_SOC select FSL_PCIE select PPC_FPU select ALTIVEC help The Freescale E600 SoCs have 74xx cores. config PPC_8xx bool "Freescale 8xx" select FSL_SOC select 8xx config 40x bool "AMCC 40x" select PPC_DCR_NATIVE config 44x bool "AMCC 44x" select PPC_DCR_NATIVE select WANT_DEVICE_TREE config E200 bool "Freescale e200" endchoice config POWER4_ONLY bool "Optimize for POWER4" depends on PPC64 default n ---help--- Cause the compiler to optimize for POWER4/POWER5/PPC970 processors. The resulting binary will not work on POWER3 or RS64 processors when compiled with binutils 2.15 or later. config POWER3 bool depends on PPC64 default y if !POWER4_ONLY config POWER4 depends on PPC64 def_bool y config 6xx bool # this is temp to handle compat with arch=ppc config 8xx bool # this is temp to handle compat with arch=ppc config 83xx bool # this is temp to handle compat with arch=ppc config 85xx bool config E500 bool config PPC_FPU bool default y if PPC64 config PPC_DCR_NATIVE bool default n Loading @@ -267,134 +140,6 @@ config PPC_OF_PLATFORM_PCI depends on PPC64 # not supported on 32 bits yet default n config 4xx bool depends on 40x || 44x default y config BOOKE bool depends on E200 || E500 || 44x default y config FSL_BOOKE bool depends on E200 || E500 default y config PTE_64BIT bool depends on 44x || E500 default y if 44x default y if E500 && PHYS_64BIT config PHYS_64BIT bool 'Large physical address support' if E500 depends on 44x || E500 select RESOURCES_64BIT default y if 44x ---help--- This option enables kernel support for larger than 32-bit physical addresses. This features is not be available on all e500 cores. If in doubt, say N here. config ALTIVEC bool "AltiVec Support" depends on CLASSIC32 || POWER4 ---help--- This option enables kernel support for the Altivec extensions to the PowerPC processor. The kernel currently supports saving and restoring altivec registers, and turning on the 'altivec enable' bit so user processes can execute altivec instructions. This option is only usefully if you have a processor that supports altivec (G4, otherwise known as 74xx series), but does not have any affect on a non-altivec cpu (it does, however add code to the kernel). If in doubt, say Y here. config SPE bool "SPE Support" depends on E200 || E500 default y ---help--- This option enables kernel support for the Signal Processing Extensions (SPE) to the PowerPC processor. The kernel currently supports saving and restoring SPE registers, and turning on the 'spe enable' bit so user processes can execute SPE instructions. This option is only useful if you have a processor that supports SPE (e500, otherwise known as 85xx series), but does not have any effect on a non-spe cpu (it does, however add code to the kernel). If in doubt, say Y here. config PPC_STD_MMU bool depends on 6xx || POWER3 || POWER4 || PPC64 default y config PPC_STD_MMU_32 def_bool y depends on PPC_STD_MMU && PPC32 config PPC_MM_SLICES bool default y if HUGETLB_PAGE default n config VIRT_CPU_ACCOUNTING bool "Deterministic task and CPU time accounting" depends on PPC64 default y help Select this option to enable more accurate task and CPU time accounting. This is done by reading a CPU counter on each kernel entry and exit and on transitions within the kernel between system, softirq and hardirq state, so there is a small performance impact. This also enables accounting of stolen time on logically-partitioned systems running on IBM POWER5-based machines. If in doubt, say Y here. config SMP depends on PPC_STD_MMU bool "Symmetric multi-processing support" ---help--- This enables support for systems with more than one CPU. If you have a system with only one CPU, say N. If you have a system with more than one CPU, say Y. Note that the kernel does not currently support SMP machines with 603/603e/603ev or PPC750 ("G3") processors since they have inadequate hardware support for multiprocessor operation. If you say N here, the kernel will run on single and multiprocessor machines, but will use only one CPU of a multiprocessor machine. If you say Y here, the kernel will run on single-processor machines. On a single-processor machine, the kernel will run faster if you say N here. If you don't know what to do here, say N. config NR_CPUS int "Maximum number of CPUs (2-128)" range 2 128 depends on SMP default "32" if PPC64 default "4" config NOT_COHERENT_CACHE bool depends on 4xx || 8xx || E200 default y config CONFIG_CHECK_CACHE_COHERENCY bool endmenu source "init/Kconfig" source "arch/powerpc/platforms/Kconfig" Loading Loading @@ -674,10 +419,6 @@ config SBUS config FSL_SOC bool config FSL_PCIE bool depends on PPC_86xx # Yes MCA RS/6000s exist but Linux-PPC does not currently support any config MCA bool Loading @@ -685,10 +426,10 @@ config MCA config PCI bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \ || PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \ || MPC7448HPC2 || PPC_PS3 || PPC_HOLLY default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx \ || PPC_PS3 default y if !40x && !CPM2 && !8xx && !PPC_83xx \ && !PPC_85xx && !PPC_86xx default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS default PCI_PERMEDIA if !4xx && !CPM2 && !8xx default PCI_QSPAN if !4xx && !CPM2 && 8xx select ARCH_SUPPORTS_MSI help Loading
arch/powerpc/Makefile +1 −1 Original line number Diff line number Diff line Loading @@ -148,7 +148,7 @@ all: $(KBUILD_IMAGE) CPPFLAGS_vmlinux.lds := -Upowerpc BOOT_TARGETS = zImage zImage.initrd zImage.dts zImage.dts_initrd uImage BOOT_TARGETS = zImage zImage.initrd uImage PHONY += $(BOOT_TARGETS) Loading
