lkml.org 
[lkml]   [2015]   [May]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RFC PATCH 1/9] ACPICA: Introduce GIC version for arm based system
Date
From: Tomasz Nowicki <tomasz.nowicki@linaro.org>

A new field is added in GIC distributor to indication
the GIC version, support it in ACPICA for later use

Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
---
include/acpi/actbl1.h | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index b80b0e6..b4f0f74 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -819,7 +819,7 @@ struct acpi_madt_generic_interrupt {
#define ACPI_MADT_PERFORMANCE_IRQ_MODE (1<<1) /* 01: Performance Interrupt Mode */
#define ACPI_MADT_VGIC_IRQ_MODE (1<<2) /* 02: VGIC Maintenance Interrupt mode */

-/* 12: Generic Distributor (ACPI 5.0) */
+/* 12: Generic Distributor (ACPI 6.0) */

struct acpi_madt_generic_distributor {
struct acpi_subtable_header header;
@@ -827,7 +827,20 @@ struct acpi_madt_generic_distributor {
u32 gic_id;
u64 base_address;
u32 global_irq_base;
- u32 reserved2; /* reserved - must be zero */
+ u8 gic_version;
+ u8 reserved2[3]; /* reserved - must be zero */
+};
+
+/* Values for gic_version in Generic Distributor (ACPI 6.0) */
+
+enum acpi_madt_gic_ver_type
+{
+ ACPI_MADT_GIC_VER_UNKNOWN = 0,
+ ACPI_MADT_GIC_VER_V1 = 1,
+ ACPI_MADT_GIC_VER_V2 = 2,
+ ACPI_MADT_GIC_VER_V3 = 3,
+ ACPI_MADT_GIC_VER_V4 = 4,
+ ACPI_MADT_GIC_VER_RESERVED = 5 /* 5 and greater are reserved */
};

/* 13: Generic MSI Frame (ACPI 5.1) */
--
1.9.1


\
 
 \ /
  Last update: 2015-05-05 16:21    [W:0.055 / U:0.748 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site