[RFC v2 7/8] acpi: PoC of Cache control via ACPI0019 and _DSM

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To: Catalin Marinas <catalin.marinas@xxxxxxx>, <james.morse@xxxxxxx>, <linux-cxl@xxxxxxxxxxxxxxx>, <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, <linux-acpi@xxxxxxxxxxxxxxx>, <linux-arch@xxxxxxxxxxxxxxx>, <linux-mm@xxxxxxxxx>, <gregkh@xxxxxxxxxxxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Dan Williams <dan.j.williams@xxxxxxxxx>, Davidlohr Bueso <dave@xxxxxxxxxxxx>
Subject: [RFC v2 7/8] acpi: PoC of Cache control via ACPI0019 and _DSM
From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Date: Tue, 24 Jun 2025 16:48:03 +0100
Cc: Yicong Yang <yangyicong@xxxxxxxxxx>, <linuxarm@xxxxxxxxxx>, Yushan Wang <wangyushan12@xxxxxxxxxx>, Lorenzo Pieralisi <lpieralisi@xxxxxxxxxx>, Mark Rutland <mark.rutland@xxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, <x86@xxxxxxxxxx>, H Peter Anvin <hpa@xxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>
In-reply-to: <20250624154805.66985-1-Jonathan.Cameron@huawei.com>
References: <20250624154805.66985-1-Jonathan.Cameron@huawei.com>

Do not merge. This is the bare outline of what may become an ACPI
code first specification proposal. For that reason it remains an RFC
and is mainly here to show that the framework is flexible enough to
be useful by providing a second driver.

References:
- [PATCH v2 0/8] Cache coherency management subsystem
  - From: Jonathan Cameron

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