linux-kernel - Re: [PATCH v3 21/23] irqchip/riscv-rpmi-sysmsi: Add ACPI support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <aCGkdqcLhPVXSSLq@smile.fi.intel.com>
Date: Mon, 12 May 2025 10:34:14 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Anup Patel <apatel@...tanamicro.com>
Cc: Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Jassi Brar <jassisinghbrar@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Rafael J . Wysocki" <rafael@...nel.org>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Uwe Kleine-König <ukleinek@...nel.org>,
	Palmer Dabbelt <palmer@...belt.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Len Brown <lenb@...nel.org>, Sunil V L <sunilvl@...tanamicro.com>,
	Rahul Pathak <rpathak@...tanamicro.com>,
	Leyfoon Tan <leyfoon.tan@...rfivetech.com>,
	Atish Patra <atish.patra@...ux.dev>,
	Andrew Jones <ajones@...tanamicro.com>,
	Samuel Holland <samuel.holland@...ive.com>,
	Anup Patel <anup@...infault.org>, linux-clk@...r.kernel.org,
	devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 21/23] irqchip/riscv-rpmi-sysmsi: Add ACPI support

On Sun, May 11, 2025 at 07:09:37PM +0530, Anup Patel wrote:
> 
> Add ACPI support for the RISC-V RPMI system MSI based irqchip driver.

...

	struct fwnode_handle *fwnode;
	...
	fwnode = dev_fwnode(dev);

> +	if (is_acpi_node(dev_fwnode(dev))) {
> +		u32 nr_irqs;
> +
> +		rc = riscv_acpi_get_gsi_info(dev_fwnode(dev), &priv->gsi_base, &id,
> +					     &nr_irqs, NULL);

		...(fwnode, ...)

...and so on...

> +		if (rc) {
> +			dev_err(dev, "failed to find GSI mapping\n");
> +			return rc;
> +		}
> +
> +		/* Update with actual GSI range */
> +		if (nr_irqs != priv->nr_irqs)
> +			riscv_acpi_update_gsi_range(priv->gsi_base, priv->nr_irqs);
> +	}

> -		if (is_of_node(dev_fwnode(dev)))
> +		if (is_of_node(dev_fwnode(dev))) {
>  			of_msi_configure(dev, to_of_node(dev_fwnode(dev)));
> +		} else {

		} else if (is_acpi_..._node(...)) {

> +			msi_domain = irq_find_matching_fwnode(imsic_acpi_get_fwnode(dev),
> +							      DOMAIN_BUS_PLATFORM_MSI);
> +			dev_set_msi_domain(dev, msi_domain);
> +		}

...

> +#ifdef CONFIG_ACPI
> +	if (!acpi_disabled)

Why?

> +		acpi_dev_clear_dependencies(ACPI_COMPANION(dev));
> +#endif

-- 
With Best Regards,
Andy Shevchenko