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From: James Hogan <james.hogan@imgtec.com>
To: Palmer Dabbelt <palmer@dabbelt.com>
Cc: peterz@infradead.org, mingo@redhat.com, mcgrof@kernel.org,
	viro@zeniv.linux.org.uk, sfr@canb.auug.org.au,
	nicolas.dichtel@6wind.com, rmk+kernel@armlinux.org.uk,
	msalter@redhat.com, tklauser@distanz.ch, will.deacon@arm.com,
	paul.gortmaker@windriver.com, linux@roeck-us.net,
	linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
	albert@sifive.com
Subject: Re: [PATCH 9/9] RISC-V: Build Infastructure
Date: Wed, 28 Jun 2017 22:25:00 +0100	[thread overview]
Message-ID: <20170628212500.GN6973@jhogan-linux.le.imgtec.org> (raw)
In-Reply-To: <20170628185538.1804-10-palmer@dabbelt.com>

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Hi Palmer,

On Wed, Jun 28, 2017 at 11:55:38AM -0700, Palmer Dabbelt wrote:
> +	select SYSRISCV_ATOMIC if !ISA_A
...
> +config SYSRISCV_ATOMIC
> +	bool "Include support for atomic operation syscalls"
> +	default !ISA_A
> +	help
> +	  If atomic memory instructions are present, i.e.,
> +	  CONFIG_ISA_A, this includes support for the syscall that
> +	  provides atomic accesses.  This is only useful to run
> +	  binaries that require atomic access but were compiled with
> +	  -mno-atomic.
> +
> +	  If CONFIG_ISA_A is unset, this option is mandatory.
> +
> +	  If you don't know what to do here, say N.

Can this be removed now that you mentioned the atomics syscall being
mandatory? I can't find any other references to it.

Cheers
James

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  parent reply	other threads:[~2017-06-28 21:25 UTC|newest]

Thread overview: 182+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20170523004107.536-1-palmer@dabbelt.com>
2017-06-06 22:59 ` RISC-V Linux Port v2 Palmer Dabbelt
2017-06-06 22:59 ` Palmer Dabbelt
2017-06-06 22:59   ` [PATCH 01/17] drivers: support PCIe in RISCV Palmer Dabbelt
2017-06-07  7:17     ` Geert Uytterhoeven
2017-06-07 14:25     ` Christoph Hellwig
2017-06-07 14:25       ` Christoph Hellwig
     [not found]       ` <CAMgXwTjXZ5dsxmJ2FyWhCRWo-3nyvKUDfhfV0nNC+oakF=AEsA@mail.gmail.com>
2017-06-07 17:40         ` Olof Johansson
2017-06-07 17:40           ` Olof Johansson
2017-06-23 21:47           ` [patches] " Palmer Dabbelt
2017-06-06 22:59   ` [PATCH 02/17] pcie-xilinx: add missing 5th legacy interrupt Palmer Dabbelt
2017-06-06 22:59     ` Palmer Dabbelt
2017-06-07  7:18     ` Geert Uytterhoeven
2017-06-07  9:24     ` Marc Zyngier
2017-06-07 19:03       ` Wesley Terpstra
2017-06-06 22:59   ` Palmer Dabbelt
2017-06-06 22:59   ` [PATCH 03/17] base: fix order of OF initialization Palmer Dabbelt
2017-06-06 22:59     ` Palmer Dabbelt
2017-06-07  7:07     ` Geert Uytterhoeven
2017-06-07  7:07       ` Geert Uytterhoeven
     [not found]       ` <CAMuHMdXWH5fU8YKfR37D5SMi1GpSk75Bq-OcYmm5ZuHe+XK0PQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-06-07  9:35         ` Mark Rutland
2017-06-07  9:35           ` Mark Rutland
2017-06-07 18:39           ` Wesley Terpstra
2017-06-07 18:39             ` Wesley Terpstra
2017-06-07 21:10             ` Benjamin Herrenschmidt
2017-06-08  3:49             ` Frank Rowand
2017-06-08  9:05               ` Mark Rutland
2017-06-08  9:05                 ` Mark Rutland
2017-06-09  0:37                 ` Frank Rowand
2017-06-06 22:59   ` [PATCH 04/17] Documentation: atomic_ops.txt is core-api/atomic_ops.rst Palmer Dabbelt
2017-06-06 22:59     ` Palmer Dabbelt
2017-06-07  7:19     ` Geert Uytterhoeven
2017-06-07  7:19       ` Geert Uytterhoeven
2017-06-07  9:20     ` Will Deacon
2017-06-06 22:59   ` [PATCH 05/17] MAINTAINERS: Add RISC-V Palmer Dabbelt
2017-06-06 22:59   ` Palmer Dabbelt
2017-06-06 22:59   ` [PATCH 06/17] pci: Add generic pcibios_{fixup_bus,align_resource} Palmer Dabbelt
2017-06-06 22:59     ` Palmer Dabbelt
2017-06-07  7:19     ` Geert Uytterhoeven
2017-06-07  8:01       ` Arnd Bergmann
2017-06-07  8:01         ` Arnd Bergmann
2017-06-24  2:01         ` Palmer Dabbelt
2017-06-24  2:01           ` Palmer Dabbelt
2017-06-08  8:12       ` Christoph Hellwig
2017-06-08  8:35         ` Arnd Bergmann
2017-06-08  8:35           ` Arnd Bergmann
2017-06-24  2:01           ` Palmer Dabbelt
2017-06-06 22:59   ` [PATCH 07/17] lib: Add shared copies of some GCC library routines Palmer Dabbelt
2017-06-06 22:59     ` Palmer Dabbelt
2017-06-06 22:59   ` Palmer Dabbelt
2017-06-06 22:59   ` [PATCH 08/17] dts: include documentation for the RISC-V interrupt controllers Palmer Dabbelt
2017-06-06 22:59     ` Palmer Dabbelt
2017-06-07  7:11     ` Geert Uytterhoeven
2017-06-07 10:13       ` Mark Rutland
2017-06-07 18:57         ` Wesley Terpstra
2017-06-07 18:57           ` Wesley Terpstra
2017-06-07 19:57           ` Rob Herring
2017-06-07 20:31             ` Wesley Terpstra
2017-06-08 10:52           ` Mark Rutland
2017-06-09 21:46             ` Wesley Terpstra
2017-06-09 21:46               ` Wesley Terpstra
2017-06-09 21:58             ` Wesley Terpstra
2017-06-19 14:30               ` Mark Rutland
2017-06-19 14:30                 ` Mark Rutland
2017-06-07 22:27     ` Luis R. Rodriguez
2017-06-06 22:59   ` Palmer Dabbelt
2017-06-06 22:59   ` [PATCH 09/17] clocksource/timer-riscv: New RISC-V Clocksource Palmer Dabbelt
2017-06-07  7:12     ` Geert Uytterhoeven
2017-06-07  7:25       ` Arnd Bergmann
2017-06-23 23:24         ` Palmer Dabbelt
2017-06-23 23:24           ` Palmer Dabbelt
2017-06-07  9:43     ` Marc Zyngier
2017-06-24  2:02       ` Palmer Dabbelt
2017-06-24  2:02         ` Palmer Dabbelt
2017-06-06 23:00   ` [PATCH 10/17] irqchip: New RISC-V PLIC Driver Palmer Dabbelt
2017-06-06 23:00   ` Palmer Dabbelt
2017-06-06 23:00     ` Palmer Dabbelt
2017-06-07  7:13     ` Geert Uytterhoeven
2017-06-07  7:55       ` Arnd Bergmann
2017-06-24  0:45         ` Palmer Dabbelt
2017-06-07 10:52     ` Marc Zyngier
2017-06-09 13:47       ` Will Deacon
2017-06-27  1:09         ` Palmer Dabbelt
2017-06-25 20:49       ` Palmer Dabbelt
2017-06-06 23:00   ` [PATCH 11/17] irqchip: RISC-V Local Interrupt Controller Driver Palmer Dabbelt
2017-06-07  7:14     ` Geert Uytterhoeven
2017-06-06 23:00   ` [PATCH 12/17] tty: New RISC-V SBI Console Driver Palmer Dabbelt
2017-06-06 23:00   ` Palmer Dabbelt
2017-06-06 23:00     ` Palmer Dabbelt
2017-06-07  7:15     ` Geert Uytterhoeven
2017-06-07  7:58       ` Arnd Bergmann
2017-06-24  0:45         ` Palmer Dabbelt
2017-06-24  0:45           ` Palmer Dabbelt
2017-06-06 23:00   ` [PATCH 13/17] RISC-V: Add include subdirectory Palmer Dabbelt
2017-06-07  8:12     ` Arnd Bergmann
2017-06-24  2:01       ` Palmer Dabbelt
2017-06-24  2:01         ` Palmer Dabbelt
2017-06-24 15:42         ` Benjamin Herrenschmidt
2017-06-24 21:32           ` [patches] " Palmer Dabbelt
2017-06-25  3:01             ` Benjamin Herrenschmidt
2017-06-07 11:54     ` Peter Zijlstra
2017-06-07 12:25       ` Peter Zijlstra
2017-06-07 12:25         ` Peter Zijlstra
2017-06-07 12:06     ` Peter Zijlstra
2017-06-07 12:18       ` Peter Zijlstra
2017-06-07 12:18         ` Peter Zijlstra
2017-06-07 12:36       ` Peter Zijlstra
2017-06-07 12:36         ` Peter Zijlstra
2017-06-07 12:58         ` Peter Zijlstra
2017-06-07 13:16           ` Will Deacon
2017-06-07 13:16             ` Will Deacon
2017-06-26 20:07             ` Palmer Dabbelt
2017-06-27  0:07               ` Daniel Lustig
2017-06-27  8:48                 ` Will Deacon
2017-06-27  8:48                   ` Will Deacon
2017-06-07 16:35           ` Peter Zijlstra
2017-06-07 16:35             ` Peter Zijlstra
2017-06-26 20:07           ` Palmer Dabbelt
2017-06-07 12:42     ` Peter Zijlstra
2017-06-07 13:17     ` Peter Zijlstra
2017-06-09  8:16       ` Peter Zijlstra
2017-06-26 20:07       ` Palmer Dabbelt
2017-06-06 23:00   ` [PATCH 14/17] RISC-V: lib files Palmer Dabbelt
2017-06-06 23:00     ` Palmer Dabbelt
2017-06-06 23:00   ` [PATCH 15/17] RISC-V: Add mm subdirectory Palmer Dabbelt
2017-06-06 23:00   ` [PATCH 16/17] RISC-V: Add kernel subdirectory Palmer Dabbelt
2017-06-06 23:00   ` Palmer Dabbelt
2017-06-06 23:00   ` [PATCH 17/17] RISC-V: Makefile and Kconfig Palmer Dabbelt
2017-06-06 23:00   ` Palmer Dabbelt
2017-06-07  9:23   ` RISC-V Linux Port v2 Will Deacon
2017-06-07 21:54     ` Palmer Dabbelt
2017-06-07 21:54       ` Palmer Dabbelt
2017-06-08 10:26       ` Will Deacon
2017-06-08 18:16         ` Palmer Dabbelt
2017-06-28 18:55   ` RISC-V Linux Port v3 Palmer Dabbelt
2017-06-28 18:55     ` [PATCH 1/9] RISC-V: Init and Halt Code Palmer Dabbelt
2017-06-29  9:44       ` Geert Uytterhoeven
2017-06-29  9:44         ` Geert Uytterhoeven
2017-06-29 22:52         ` Palmer Dabbelt
2017-06-28 18:55     ` Palmer Dabbelt
2017-06-28 18:55     ` [PATCH 2/9] RISC-V: Atomic and Locking Code Palmer Dabbelt
2017-06-28 18:55       ` Palmer Dabbelt
2017-06-28 18:55     ` [PATCH 3/9] RISC-V: Generic library routines and assembly Palmer Dabbelt
2017-06-28 18:55     ` [PATCH 4/9] RISC-V: ELF and module implementation Palmer Dabbelt
2017-06-28 18:55     ` Palmer Dabbelt
2017-06-28 18:55     ` [PATCH 5/9] RISC-V: Task implementation Palmer Dabbelt
2017-06-28 18:55     ` Palmer Dabbelt
2017-06-28 23:32       ` James Hogan
2017-06-29 22:52         ` Palmer Dabbelt
2017-06-29  8:22       ` Tobias Klauser
2017-06-29 22:52         ` Palmer Dabbelt
2017-06-28 18:55     ` [PATCH 6/9] RISC-V: Device, timer, IRQs, and the SBI Palmer Dabbelt
2017-06-29  8:39       ` Tobias Klauser
2017-06-29 22:52         ` Palmer Dabbelt
2017-06-29 22:52           ` Palmer Dabbelt
2017-06-30  7:57           ` Tobias Klauser
2017-06-28 18:55     ` [PATCH 7/9] RISC-V: Paging and MMU Palmer Dabbelt
2017-06-28 18:55       ` Palmer Dabbelt
2017-06-28 23:09       ` James Hogan
2017-06-29 22:11         ` Palmer Dabbelt
2017-06-28 18:55     ` Palmer Dabbelt
2017-06-28 18:55     ` [PATCH 8/9] RISC-V: User-facing API Palmer Dabbelt
2017-06-28 21:49       ` Thomas Gleixner
2017-06-28 21:52         ` Thomas Gleixner
2017-06-29 17:22         ` Palmer Dabbelt
2017-06-28 22:42       ` James Hogan
2017-06-29 21:42         ` Palmer Dabbelt
2017-07-03 23:06           ` James Hogan
2017-07-05 16:49             ` Palmer Dabbelt
2017-06-28 18:55     ` [PATCH 9/9] RISC-V: Build Infastructure Palmer Dabbelt
2017-06-28 18:55       ` Palmer Dabbelt
2017-06-28 21:05       ` Karsten Merker
2017-06-28 21:13         ` Palmer Dabbelt
2017-06-28 21:25       ` James Hogan [this message]
2017-06-29 16:29         ` Palmer Dabbelt
2017-06-28 22:54       ` James Hogan
2017-06-29 22:11         ` Palmer Dabbelt
2017-06-29 22:11           ` Palmer Dabbelt
2017-06-07  7:29 ` RISC-V Linux Port v2 David Howells
2017-06-07 21:54   ` Palmer Dabbelt
2017-06-07 21:54     ` Palmer Dabbelt
2017-07-04 19:50 RISC-V Linux Port v4 Palmer Dabbelt
2017-07-04 19:51 ` [PATCH 9/9] RISC-V: Build Infastructure Palmer Dabbelt
2017-07-04 19:51   ` Palmer Dabbelt

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