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From: "Clément Léger" <cleger@rivosinc.com>
To: Jonathan Corbet <corbet@lwn.net>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Conor Dooley <conor@kernel.org>, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Anup Patel <anup@brainfault.org>, Shuah Khan <shuah@kernel.org>
Cc: "Clément Léger" <cleger@rivosinc.com>,
	"Atish Patra" <atishp@atishpatra.org>,
	linux-doc@vger.kernel.org, linux-riscv@lists.infradead.org,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	kvm@vger.kernel.org, kvm-riscv@lists.infradead.org,
	linux-kselftest@vger.kernel.org
Subject: [PATCH v3 00/11] Add support for a few Zc* extensions as well as Zcmop
Date: Tue, 23 Apr 2024 14:43:14 +0200	[thread overview]
Message-ID: <20240423124326.2532796-1-cleger@rivosinc.com> (raw)

Add support for (yet again) more RVA23U64 missing extensions. Add
support for Zcmop, Zca, Zcf, Zcd and Zcb extensions isa string parsing,
hwprobe and kvm support. Zce, Zcmt and Zcmp extensions have been left
out since they target microcontrollers/embedded CPUs and are not needed
by RVA23U64.

Since Zc* extensions states that C implies Zca, Zcf (if F and RV32), Zcd
(if D), this series modifies the way ISA string is parsed and now does
it in two phases. First one parses the string and the second one
validates it for the final ISA description.

This series is based on the Zimop one [1]. An additional fix [2] should
be applied to correctly test that series.

Link: https://lore.kernel.org/linux-riscv/20240404103254.1752834-1-cleger@rivosinc.com/ [1]
Link: https://lore.kernel.org/all/20240409143839.558784-1-cleger@rivosinc.com/ [2]

---

v3:
 - Fix typo "exists" -> "exist"
 - Remove C implies Zca, Zcd, Zcf, dt-bindings rules
 - Rework ISA string resolver to handle dependencies
 - v2: https://lore.kernel.org/all/20240418124300.1387978-1-cleger@rivosinc.com/

v2:
 - Add Zc* dependencies validation in dt-bindings
 - v1: https://lore.kernel.org/lkml/20240410091106.749233-1-cleger@rivosinc.com/

Clément Léger (11):
  dt-bindings: riscv: add Zca, Zcf, Zcd and Zcb ISA extension
    description
  riscv: add ISA extensions validation
  riscv: add ISA parsing for Zca, Zcf, Zcd and Zcb
  riscv: hwprobe: export Zca, Zcf, Zcd and Zcb ISA extensions
  RISC-V: KVM: Allow Zca, Zcf, Zcd and Zcb extensions for Guest/VM
  KVM: riscv: selftests: Add some Zc* extensions to get-reg-list test
  dt-bindings: riscv: add Zcmop ISA extension description
  riscv: add ISA extension parsing for Zcmop
  riscv: hwprobe: export Zcmop ISA extension
  RISC-V: KVM: Allow Zcmop extension for Guest/VM
  KVM: riscv: selftests: Add Zcmop extension to get-reg-list test

 Documentation/arch/riscv/hwprobe.rst          |  24 ++
 .../devicetree/bindings/riscv/extensions.yaml |  90 +++++++
 arch/riscv/include/asm/cpufeature.h           |   1 +
 arch/riscv/include/asm/hwcap.h                |   5 +
 arch/riscv/include/uapi/asm/hwprobe.h         |   5 +
 arch/riscv/include/uapi/asm/kvm.h             |   5 +
 arch/riscv/kernel/cpufeature.c                | 249 ++++++++++++------
 arch/riscv/kernel/sys_hwprobe.c               |   5 +
 arch/riscv/kvm/vcpu_onereg.c                  |  10 +
 .../selftests/kvm/riscv/get-reg-list.c        |  20 ++
 10 files changed, 329 insertions(+), 85 deletions(-)

-- 
2.43.0


             reply	other threads:[~2024-04-23 12:43 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-23 12:43 Clément Léger [this message]
2024-04-23 12:43 ` [PATCH v3 01/11] dt-bindings: riscv: add Zca, Zcf, Zcd and Zcb ISA extension description Clément Léger
2024-04-23 12:43 ` [PATCH v3 02/11] riscv: add ISA extensions validation Clément Léger
2024-04-26 14:23   ` Conor Dooley
2024-04-29  8:02     ` Clément Léger
2024-04-23 12:43 ` [PATCH v3 03/11] riscv: add ISA parsing for Zca, Zcf, Zcd and Zcb Clément Léger
2024-04-26 14:35   ` Conor Dooley
2024-04-23 12:43 ` [PATCH v3 04/11] riscv: hwprobe: export Zca, Zcf, Zcd and Zcb ISA extensions Clément Léger
2024-04-23 12:43 ` [PATCH v3 05/11] RISC-V: KVM: Allow Zca, Zcf, Zcd and Zcb extensions for Guest/VM Clément Léger
2024-04-23 12:43 ` [PATCH v3 06/11] KVM: riscv: selftests: Add some Zc* extensions to get-reg-list test Clément Léger
2024-04-23 12:43 ` [PATCH v3 07/11] dt-bindings: riscv: add Zcmop ISA extension description Clément Léger
2024-04-23 12:43 ` [PATCH v3 08/11] riscv: add ISA extension parsing for Zcmop Clément Léger
2024-04-23 12:43 ` [PATCH v3 09/11] riscv: hwprobe: export Zcmop ISA extension Clément Léger
2024-04-23 12:43 ` [PATCH v3 10/11] RISC-V: KVM: Allow Zcmop extension for Guest/VM Clément Léger
2024-04-23 12:43 ` [PATCH v3 11/11] KVM: riscv: selftests: Add Zcmop extension to get-reg-list test Clément Léger

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