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https://github.com/Fishwaldo/linux-bl808.git
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f444f1f898
Back in the olden days we added support for using 64K pages to map the SPU (Synergistic Processing Unit) local store on Cell, when the main kernel was using 4K pages. This was useful at the time because distros were using 4K pages, but using 64K pages on the SPUs could reduce TLB pressure there. However these days the number of Cell users is approaching zero, and supporting this option adds unpleasant complexity to the memory management code. So drop the option, CONFIG_SPU_FS_64K_LS, and all related code. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Jeremy Kerr <jk@ozlabs.org>
114 lines
2.5 KiB
Text
114 lines
2.5 KiB
Text
config PPC_CELL
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bool
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default n
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config PPC_CELL_COMMON
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bool
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select PPC_CELL
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select PPC_DCR_MMIO
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select PPC_INDIRECT_PIO
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select PPC_INDIRECT_MMIO
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select PPC_NATIVE
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select PPC_RTAS
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select IRQ_EDGE_EOI_HANDLER
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config PPC_CELL_NATIVE
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bool
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select PPC_CELL_COMMON
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select MPIC
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select PPC_IO_WORKAROUNDS
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select IBM_EMAC_EMAC4
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select IBM_EMAC_RGMII
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select IBM_EMAC_ZMII #test only
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select IBM_EMAC_TAH #test only
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default n
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config PPC_IBM_CELL_BLADE
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bool "IBM Cell Blade"
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depends on PPC64 && PPC_BOOK3S
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select PPC_CELL_NATIVE
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select PPC_OF_PLATFORM_PCI
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select PCI
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select MMIO_NVRAM
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select PPC_UDBG_16550
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select UDBG_RTAS_CONSOLE
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config PPC_CELL_QPACE
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bool "IBM Cell - QPACE"
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depends on PPC64 && PPC_BOOK3S
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select PPC_CELL_COMMON
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config AXON_MSI
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bool
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depends on PPC_IBM_CELL_BLADE && PCI_MSI
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default y
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menu "Cell Broadband Engine options"
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depends on PPC_CELL
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config SPU_FS
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tristate "SPU file system"
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default m
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depends on PPC_CELL
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select SPU_BASE
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select MEMORY_HOTPLUG
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help
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The SPU file system is used to access Synergistic Processing
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Units on machines implementing the Broadband Processor
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Architecture.
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config SPU_BASE
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bool
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default n
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select PPC_COPRO_BASE
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config CBE_RAS
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bool "RAS features for bare metal Cell BE"
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depends on PPC_CELL_NATIVE
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default y
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config PPC_IBM_CELL_RESETBUTTON
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bool "IBM Cell Blade Pinhole reset button"
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depends on CBE_RAS && PPC_IBM_CELL_BLADE
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default y
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help
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Support Pinhole Resetbutton on IBM Cell blades.
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This adds a method to trigger system reset via front panel pinhole button.
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config PPC_IBM_CELL_POWERBUTTON
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tristate "IBM Cell Blade power button"
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depends on PPC_IBM_CELL_BLADE && INPUT_EVDEV
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default y
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help
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Support Powerbutton on IBM Cell blades.
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This will enable the powerbutton as an input device.
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config CBE_THERM
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tristate "CBE thermal support"
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default m
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depends on CBE_RAS && SPU_BASE
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config PPC_PMI
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tristate
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default y
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depends on CPU_FREQ_CBE_PMI || PPC_IBM_CELL_POWERBUTTON
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help
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PMI (Platform Management Interrupt) is a way to
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communicate with the BMC (Baseboard Management Controller).
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It is used in some IBM Cell blades.
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config CBE_CPUFREQ_SPU_GOVERNOR
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tristate "CBE frequency scaling based on SPU usage"
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depends on SPU_FS && CPU_FREQ
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default m
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help
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This governor checks for spu usage to adjust the cpu frequency.
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If no spu is running on a given cpu, that cpu will be throttled to
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the minimal possible frequency.
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endmenu
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config OPROFILE_CELL
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def_bool y
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depends on PPC_CELL_NATIVE && (OPROFILE = m || OPROFILE = y) && SPU_BASE
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