lkml.org 
[lkml]   [2015]   [Nov]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v1 00/20] eznps a new ARC platform
From
Date
On Saturday 31 October 2015 06:45 PM, Noam Camus wrote:
> From: Noam Camus <noamc@ezchip.com>
>
> This set introduce new platform to ARC architecture.
> Platform name called "eznps" for working with EZchip NPS400
> Network Proccessor.
> NPS400 is targeted to service "fast path" network applications.
>
> NPS400 got mesh of 256 extended ARC cores (AKA CTOP), each core
> got 16 HW threats.

threads - although it might as well be a thread to others doing network SoC :-)

This is basically SMT core where at any point of
> time only one HW thread is active.
> Each core have HW scheduler that round robin between eligible HW
> threads. Totaly, kernel sees 4096 CPUs which I belive is a high record.
> There is no cache coherency between cores so generic user applications
> and kernel do not use D$.
>
> Cores got special memory mappings for huge pages (8MB).
> Mapping is static and should provide application enough memory without
> any "TLB miss". This mapping is on top of TLB mapping.
>
> This is a basic set that will later be followed with additional
> set of patches with all advanced features.
>
> Many thanks to all people helping to make this happen.
>
> Regards,
> Noam Camus
>
> Noam Camus (17):
> Documentation: Add EZchip vendor to binding list
> clocksource: Add NPS400 timers driver
> irqchip: add nps Internal and external irqchips
> ARC: Set vmalloc size from configuration
> ARC: rwlock: disable interrupts in !LLSC variant
> ARC: Mark cpu online only after it has executed the per cpu init
> hook.
> ARC: mm: use generic macros _BITUL()
> ARC: add CONFIG_CLKSRC_OF support to time_init()
> ARC: [plat-eznps] Add eznps board defconfig and dts
> ARC: [plat-eznps] Add eznps platform
> ARC: [plat-eznps] Use dedicated user stack top
> ARC: [plat-eznps] Use dedicated bitops/atomic/cmpxchg
> ARC: [plat-eznps] Use dedicated SMP barriers
> ARC: [plat-eznps] Use dedicated identity auxiliary register.
> ARC: [plat-eznps] Use dedicated COMMAND_LINE_SIZE
> ARC: [plat-eznps] define IPI_IRQ
> ARC: Add eznps platform to Kconfig and Makefile
>
> Tal Zilcer (3):
> ARC: Use res_service as entry point for secondaries
> ARC: [plat-eznps] Use dedicated cpu_relax()
> ARC: [plat-eznps] replace sync with proper cpu barrier
>
> Documentation/devicetree/bindings/arc/eznps.txt | 7 +
> .../interrupt-controller/ezchip,nps400-ic.txt | 17 ++
> .../bindings/timer/ezchip,nps400-timer.txt | 11 +
> .../devicetree/bindings/vendor-prefixes.txt | 1 +
> MAINTAINERS | 6 +
> arch/arc/Kconfig | 9 +
> arch/arc/Makefile | 9 +
> arch/arc/boot/dts/eznps.dts | 76 ++++++
> arch/arc/configs/nps_defconfig | 85 +++++++
> arch/arc/include/asm/atomic.h | 69 +++++
> arch/arc/include/asm/barrier.h | 8 +
> arch/arc/include/asm/bitops.h | 49 ++++
> arch/arc/include/asm/cmpxchg.h | 49 ++++
> arch/arc/include/asm/entry-compact.h | 8 +
> arch/arc/include/asm/irq.h | 4 +
> arch/arc/include/asm/pgtable.h | 2 +-
> arch/arc/include/asm/processor.h | 32 ++-
> arch/arc/include/asm/setup.h | 4 +
> arch/arc/include/asm/smp.h | 2 +-
> arch/arc/include/asm/spinlock.h | 14 +
> arch/arc/kernel/ctx_sw.c | 20 ++
> arch/arc/kernel/smp.c | 9 +-
> arch/arc/kernel/time.c | 4 +
> arch/arc/mm/tlb.c | 12 +
> arch/arc/plat-eznps/Kconfig | 34 +++
> arch/arc/plat-eznps/Makefile | 7 +
> arch/arc/plat-eznps/entry.S | 76 ++++++
> arch/arc/plat-eznps/include/plat/ctop.h | 265 ++++++++++++++++++++
> arch/arc/plat-eznps/include/plat/mtm.h | 60 +++++
> arch/arc/plat-eznps/include/plat/smp.h | 27 ++
> arch/arc/plat-eznps/mtm.c | 152 +++++++++++
> arch/arc/plat-eznps/platform.c | 40 +++
> arch/arc/plat-eznps/smp.c | 160 ++++++++++++
> drivers/clocksource/Makefile | 1 +
> drivers/clocksource/timer-nps.c | 103 ++++++++
> drivers/irqchip/Makefile | 1 +
> drivers/irqchip/irq-eznps.c | 222 ++++++++++++++++
> 37 files changed, 1644 insertions(+), 11 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/arc/eznps.txt
> create mode 100644 Documentation/devicetree/bindings/interrupt-controller/ezchip,nps400-ic.txt
> create mode 100644 Documentation/devicetree/bindings/timer/ezchip,nps400-timer.txt
> create mode 100644 arch/arc/boot/dts/eznps.dts
> create mode 100644 arch/arc/configs/nps_defconfig
> create mode 100644 arch/arc/plat-eznps/Kconfig
> create mode 100644 arch/arc/plat-eznps/Makefile
> create mode 100644 arch/arc/plat-eznps/entry.S
> create mode 100644 arch/arc/plat-eznps/include/plat/ctop.h
> create mode 100644 arch/arc/plat-eznps/include/plat/mtm.h
> create mode 100644 arch/arc/plat-eznps/include/plat/smp.h
> create mode 100644 arch/arc/plat-eznps/mtm.c
> create mode 100644 arch/arc/plat-eznps/platform.c
> create mode 100644 arch/arc/plat-eznps/smp.c
> create mode 100644 drivers/clocksource/timer-nps.c
> create mode 100644 drivers/irqchip/irq-eznps.c
>



\
 
 \ /
  Last update: 2015-11-04 17:01    [W:0.613 / U:0.328 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site