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From: Conor Dooley <conor.dooley@microchip.com>
To: Sunil V L <sunilvl@ventanamicro.com>
Cc: Anup Patel <apatel@ventanamicro.com>,
	Conor Dooley <conor@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>, <atishp@atishpatra.org>,
	<linux-riscv@lists.infradead.org>, <devicetree@vger.kernel.org>,
	<conor+dt@kernel.org>, <heiko@sntech.de>, <cyy@cyyself.name>,
	<robh+dt@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	<ajones@ventanamicro.com>, Krste Asanovic <krste@sifive.com>,
	Andrew Waterman <andrew@sifive.com>,
	Greg Favor <gfavor@ventanamicro.com>,
	Mark Himelstein <markhimelstein@riscv.org>,
	Philipp Tomsich <philipp.tomsich@vrull.eu>
Subject: Re: [RFC 0/6] Deprecate riscv,isa DT property?
Date: Mon, 15 May 2023 08:52:30 +0100	[thread overview]
Message-ID: <20230515-unblock-mammogram-5c099bca83a6@wendy> (raw)
In-Reply-To: <ZGG3S3FgmHy/XGBx@sunil-laptop>

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On Mon, May 15, 2023 at 10:08:35AM +0530, Sunil V L wrote:
> On Sat, May 13, 2023 at 01:17:03PM +0530, Anup Patel wrote:

> > ISA string parsed for both DT and ACPI.
> > 
> > For ACPI, moving to a per-extension bit in a bitmap and defining
> > a new bit with every ISA extension will be very very inconvenient
> > for updating the ACPI specs. We should continue the ISA string
> > parsing at least for ACPI.
> > 
> > For DT, users can either use "riscv,isa" DT property or use boolean
> > DT properties.
> > 
> From ACPI perspective, the format better be backed by unpriv (or any
> other) spec from RVI considering it is a standard across OSs and to
> avoid any maintenance issues.

DT is also used across multiple OSes, I am not sure what your point is
here.
The problem, for DT in particular, is defining __which__ version of the
unpriv spec meaning is derived from, not whether to use definitions from
the specifications.

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  reply	other threads:[~2023-05-15  7:53 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-08 18:16 [RFC 0/6] Deprecate riscv,isa DT property? Conor Dooley
2023-05-08 18:16 ` [RFC 1/6] dt-bindings: riscv: clarify what an unversioned extension means Conor Dooley
2023-05-13 17:46   ` Krzysztof Kozlowski
2023-05-08 18:16 ` [RFC 2/6] dt-bindings: riscv: add riscv,isa-extension-* property and incompatible example Conor Dooley
2023-05-13 17:50   ` Krzysztof Kozlowski
2023-05-13 18:00     ` Conor Dooley
2023-05-08 18:16 ` [RFC 3/6] RISC-V: deprecate riscv,isa & replace it with per-extension properties Conor Dooley
2023-05-08 18:16 ` [RFC 4/6] RISC-V: add support for riscv,isa-base property Conor Dooley
2023-05-08 18:16 ` [RFC 5/6] RISC-V: drop a needless check in print_isa_ext() Conor Dooley
2023-05-08 18:16 ` [RFC 6/6] riscv: dts: microchip: use new riscv,isa-extension-* properties for mpfs Conor Dooley
2023-05-11 21:27 ` [RFC 0/6] Deprecate riscv,isa DT property? Atish Patra
2023-05-11 21:47   ` Conor Dooley
2023-05-11 22:34     ` Atish Patra
2023-05-11 22:38       ` Conor Dooley
2023-05-12 18:01         ` Palmer Dabbelt
2023-05-12 19:40           ` Conor Dooley
2023-05-12 22:05             ` Conor Dooley
2023-05-12 23:20               ` Atish Patra
2023-05-12 23:52                 ` Conor Dooley
2023-05-12 23:55               ` Palmer Dabbelt
2023-05-13  0:09                 ` Conor Dooley
2023-05-13  0:38                   ` Palmer Dabbelt
2023-05-13  7:47               ` Anup Patel
2023-05-13 21:34                 ` Jessica Clarke
2023-05-13 21:54                   ` Conor Dooley
2023-05-15  4:38                 ` Sunil V L
2023-05-15  7:52                   ` Conor Dooley [this message]
2023-05-12 18:08   ` Palmer Dabbelt

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