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

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Date:	Thu, 31 Jul 2014 16:15:26 +0800
From:	Hanjun Guo <hanjun.guo@...aro.org>
To:	Sudeep Holla <sudeep.holla@....com>,
	Catalin Marinas <Catalin.Marinas@....com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Mark Rutland <Mark.Rutland@....com>
CC:	"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 2014-7-31 2:21, Sudeep Holla wrote:
> 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

Agreed.

> 
>> +                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

Yes, I'm working on it :)

Thanks
Hanjun

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