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)

This 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@rjwysocki.net>
Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Tested-by: Yijing Wang <wangyijing@huawei.com>
Tested-by: Mark Langsdorf <mlangsdo@redhat.com>
Tested-by: Jon Masters <jcm@redhat.com>
Tested-by: Timur Tabi <timur@codeaurora.org>
Tested-by: Robert Richter <rrichter@cavium.com>
Acked-by: Robert Richter <rrichter@cavium.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index f4e5b888b98e..2e19189da0ee 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);