linux-kernel - Re: [PATCH 08/19] ACPI / table: Print GIC information when MADT is parsed

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Message-ID: <53D937B5.5040404@arm.com>
Date:	Wed, 30 Jul 2014 19:21:41 +0100
From:	Sudeep Holla <sudeep.holla@....com>
To:	Hanjun Guo <hanjun.guo@...aro.org>,
	Catalin Marinas <Catalin.Marinas@....com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Mark Rutland <Mark.Rutland@....com>
CC:	Sudeep Holla <sudeep.holla@....com>,
	"graeme.gregory@...aro.org" <graeme.gregory@...aro.org>,
	Arnd Bergmann <arnd@...db.de>,
	"grant.likely@...aro.org" <grant.likely@...aro.org>,
	Will Deacon <Will.Deacon@....com>,
	Jason Cooper <jason@...edaemon.net>,
	Marc Zyngier <Marc.Zyngier@....com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Mark Brown <broonie@...aro.org>,
	Robert Richter <rric@...nel.org>,
	Lv Zheng <lv.zheng@...el.com>,
	Robert Moore <robert.moore@...el.com>,
	Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>,
	Liviu Dudau <Liviu.Dudau@....com>,
	Randy Dunlap <rdunlap@...radead.org>,
	Charles Garcia-Tobin <Charles.Garcia-Tobin@....com>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Tomasz Nowicki <tomasz.nowicki@...aro.org>
Subject: Re: [PATCH 08/19] ACPI / table: Print GIC information when MADT is
 parsed



On 24/07/14 14:00, Hanjun Guo wrote:
> When MADT is parsed, print GIC information to make the boot
> log look pretty.
>
> Signed-off-by: Hanjun Guo <hanjun.guo@...aro.org>
> Signed-off-by: Tomasz Nowicki <tomasz.nowicki@...aro.org>
> ---
>   drivers/acpi/tables.c |   39 ++++++++++++++++++++++++++++++++++++++-
>   1 file changed, 38 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
> index 6d5a6cd..8bb8159 100644
> --- a/drivers/acpi/tables.c
> +++ b/drivers/acpi/tables.c
> @@ -183,6 +183,44 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header)
>   		}
>   		break;
>
> +	case ACPI_MADT_TYPE_GENERIC_INTERRUPT:
> +		{
> +			struct acpi_madt_generic_interrupt *p =
> +				(struct acpi_madt_generic_interrupt *)header;
> +			pr_info("GICC (acpi_id[0x%04x] cpu_address[0x%08llx] MPDIR[0x%llx] %s)\n",

What exactly does cpu_address mean ? Better s/cpu_address/address

> +				p->uid, p->base_address, p->mpidr,
> +				(p->flags & ACPI_MADT_ENABLED) ? "enabled" : "disabled");
> +
> +		}
> +		break;
> +
> +	case ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR:
> +		{
> +			struct acpi_madt_generic_distributor *p =
> +				(struct acpi_madt_generic_distributor *)header;
> +			pr_info("GIC Distributor (id[0x%04x] address[0x%08llx] gsi_base[%d])\n",
> +				p->gic_id, p->base_address, p->global_irq_base);
> +		}
> +		break;
> +
> +	case ACPI_MADT_TYPE_GIC_MSI_FRAME:
> +		{
> +			struct acpi_madt_gic_msi_frame *p =
> +				(struct acpi_madt_gic_msi_frame *)header;
> +			pr_info("GIC MSI Frame (address[0x%08llx] msi_fame_id[%d])\n",
> +				p->base_address, p->gic_msi_frame_id);
> +		}
> +		break;
> +
> +	case ACPI_MADT_TYPE_GIC_REDISTRIBUTOR:
> +		{
> +			struct acpi_madt_gic_redistributor *p =
> +				(struct acpi_madt_gic_redistributor *)header;
> +			pr_info("GIC Redistributor (address[0x%08llx] region_size[0x%x])\n",
> +				p->base_address, p->region_size);
> +		}
> +		break;
> +

You may need to rework on the variable names when you rebase on ACPICA 
20140724

Regards,
Sudeep

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