From: Heiko Stuebner <heiko@sntech.de>
To: palmer@dabbelt.com, paul.walmsley@sifive.com
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
wefu@redhat.com, guoren@kernel.org, atishp@atishpatra.org,
anup@brainfault.org, mick@ics.forth.gr, samuel@sholland.org,
cmuellner@linux.com, philipp.tomsich@vrull.eu,
robh+dt@kernel.org, krzk+dt@kernel.org,
devicetree@vger.kernel.org, Heiko Stuebner <heiko@sntech.de>
Subject: [PATCH v2 1/3] dt-bindings: riscv: document cbom-block-size
Date: Wed, 11 May 2022 23:41:30 +0200 [thread overview]
Message-ID: <20220511214132.2281431-2-heiko@sntech.de> (raw)
In-Reply-To: <20220511214132.2281431-1-heiko@sntech.de>
The Zicbom operates on a block-size defined for the cpu-core,
which does not necessarily match other cache-sizes used.
So add the necessary property for the system to know the core's
block-size.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
Documentation/devicetree/bindings/riscv/cpus.yaml | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/riscv/cpus.yaml b/Documentation/devicetree/bindings/riscv/cpus.yaml
index d632ac76532e..b179bfd155a3 100644
--- a/Documentation/devicetree/bindings/riscv/cpus.yaml
+++ b/Documentation/devicetree/bindings/riscv/cpus.yaml
@@ -63,6 +63,13 @@ properties:
- riscv,sv48
- riscv,none
+ riscv,cbom-block-size:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Blocksize in bytes for the Zicbom cache operations. The block
+ size is a property of the core itself and does not necessarily
+ match other software defined cache sizes.
+
riscv,isa:
description:
Identifies the specific RISC-V instruction set architecture
--
2.35.1
next prev parent reply other threads:[~2022-05-11 21:41 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-11 21:41 [PATCH v2 0/2] riscv: implement Zicbom-based CMO instructions + the t-head variant Heiko Stuebner
2022-05-11 21:41 ` Heiko Stuebner [this message]
2022-05-12 4:18 ` [PATCH v2 1/3] dt-bindings: riscv: document cbom-block-size Anup Patel
2022-05-13 10:28 ` Christoph Müllner
2022-05-18 0:25 ` Rob Herring
2022-05-18 8:22 ` Philipp Tomsich
2022-05-18 9:02 ` Heiko Stübner
2022-05-18 9:10 ` Anup Patel
2022-05-18 9:20 ` Philipp Tomsich
2022-05-25 15:14 ` Heiko Stübner
2022-05-11 21:41 ` [PATCH v2 2/3] riscv: Implement Zicbom-based cache management operations Heiko Stuebner
2022-05-12 4:19 ` Anup Patel
2022-05-13 13:38 ` Guo Ren
2022-05-16 6:00 ` Christoph Hellwig
2022-05-11 21:41 ` [PATCH v2 3/3] riscv: implement cache-management errata for T-Head SoCs Heiko Stuebner
2022-05-12 4:40 ` Anup Patel
2022-05-13 13:37 ` Guo Ren
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