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authorJulien Grall <julien.grall@arm.com>2016-04-11 16:32:54 +0100
committerChristoffer Dall <christoffer.dall@linaro.org>2016-05-03 12:54:21 +0200
commit502d6df11ae394301470703fa6e485a0dc133401 (patch)
tree996904d7b5ddca66ea74ec31e3c9f29cb1ead7a1 /include/linux/irqchip
parentbafa9193d00c7bfff4c4aea0d48cd2b55a6378c2 (diff)
irqchip/gic-v2: Parse and export virtual GIC information
For now, the firmware tables are parsed 2 times: once in the GIC drivers, the other timer when initializing the vGIC. It means code duplication and make more tedious to add the support for another firmware table (like ACPI). Introduce a new structure and set of helpers to get/set the virtual GIC information. Also fill up the structure for GICv2. Signed-off-by: Julien Grall <julien.grall@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'include/linux/irqchip')
-rw-r--r--include/linux/irqchip/arm-gic-common.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/include/linux/irqchip/arm-gic-common.h b/include/linux/irqchip/arm-gic-common.h
new file mode 100644
index 000000000000..ef34f6f35e91
--- /dev/null
+++ b/include/linux/irqchip/arm-gic-common.h
@@ -0,0 +1,33 @@
+/*
+ * include/linux/irqchip/arm-gic-common.h
+ *
+ * Copyright (C) 2016 ARM Limited, All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __LINUX_IRQCHIP_ARM_GIC_COMMON_H
+#define __LINUX_IRQCHIP_ARM_GIC_COMMON_H
+
+#include <linux/types.h>
+#include <linux/ioport.h>
+
+enum gic_type {
+ GIC_V2,
+};
+
+struct gic_kvm_info {
+ /* GIC type */
+ enum gic_type type;
+ /* Virtual CPU interface */
+ struct resource vcpu;
+ /* Interrupt number */
+ unsigned int maint_irq;
+ /* Virtual control interface */
+ struct resource vctrl;
+};
+
+const struct gic_kvm_info *gic_get_kvm_info(void);
+
+#endif /* __LINUX_IRQCHIP_ARM_GIC_COMMON_H */