linux-kernel - [PATCH v9 12/21] ACPI / table: Print GIC information when MADT is parsed

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Message-Id: <1424853601-6675-13-git-send-email-hanjun.guo@linaro.org>
Date:	Wed, 25 Feb 2015 16:39:52 +0800
From:	Hanjun Guo <hanjun.guo@...aro.org>
To:	Catalin Marinas <catalin.marinas@....com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Will Deacon <will.deacon@....com>,
	Olof Johansson <olof@...om.net>,
	Grant Likely <grant.likely@...aro.org>
Cc:	Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>,
	Arnd Bergmann <arnd@...db.de>,
	Mark Rutland <mark.rutland@....com>,
	Graeme Gregory <graeme.gregory@...aro.org>,
	Sudeep Holla <Sudeep.Holla@....com>,
	Jon Masters <jcm@...hat.com>,
	Marc Zyngier <marc.zyngier@....com>,
	Mark Brown <broonie@...nel.org>,
	Robert Richter <rric@...nel.org>,
	Timur Tabi <timur@...eaurora.org>,
	Ashwin Chaugule <ashwinc@...eaurora.org>,
	suravee.suthikulpanit@....com, linux-acpi@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linaro-acpi@...ts.linaro.org, Hanjun Guo <hanjun.guo@...aro.org>,
	Tomasz Nowicki <tomasz.nowicki@...aro.org>
Subject: [PATCH v9 12/21] ACPI / table: Print GIC information when MADT is parsed

When MADT is parsed, print GIC information as debug message:

ACPI: GICC (acpi_id[0x0000] address[00000000e112f000] MPIDR[0x0] enabled)
ACPI: GICC (acpi_id[0x0001] address[00000000e112f000] MPIDR[0x1] enabled)
...
ACPI: GICC (acpi_id[0x0201] address[00000000e112f000] MPIDR[0x201] enabled)

Those debug information will be very helpful to bring up early systems to
see if acpi_id and MPIDR are matched or not as spec defined.

CC: Rafael J. Wysocki <rjw@...ysocki.net>
Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
Tested-by: Yijing Wang <wangyijing@...wei.com>
Tested-by: Mark Langsdorf <mlangsdo@...hat.com>
Tested-by: Jon Masters <jcm@...hat.com>
Tested-by: Timur Tabi <timur@...eaurora.org>
Tested-by: Robert Richter <rrichter@...ium.com>
Acked-by: Robert Richter <rrichter@...ium.com>
Acked-by: Sudeep Holla <sudeep.holla@....com>
Signed-off-by: Hanjun Guo <hanjun.guo@...aro.org>
Signed-off-by: Tomasz Nowicki <tomasz.nowicki@...aro.org>
---
 drivers/acpi/tables.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index f4e5b88..2e19189 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -185,6 +185,28 @@ 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_debug("GICC (acpi_id[0x%04x] address[%llx] MPIDR[0x%llx] %s)\n",
+				 p->uid, p->base_address,
+				 p->arm_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_debug("GIC Distributor (gic_id[0x%04x] address[%llx] gsi_base[%d])\n",
+				 p->gic_id, p->base_address,
+				 p->global_irq_base);
+		}
+		break;
+
 	default:
 		pr_warn("Found unsupported MADT entry (type = 0x%x)\n",
 			header->type);
-- 
1.9.1

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