Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1700225

[PATCH v3 14/59] irqchip/gic-v4: Add management structure definitions

From Marc Zyngier <marc.zyngier@arm.com>
Newsgroups linux.kernel
Subject [PATCH v3 14/59] irqchip/gic-v4: Add management structure definitions
Date 2017-07-31 19:30 +0200
Message-ID <u9mFX-DO-17@gated-at.bofh.it> (permalink)
References <u9mFX-DO-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

Add a bunch of GICv4-specific data structures that will get used in
subsequent patches.

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
 include/linux/irqchip/arm-gic-v4.h | 92 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 include/linux/irqchip/arm-gic-v4.h

diff --git a/include/linux/irqchip/arm-gic-v4.h b/include/linux/irqchip/arm-gic-v4.h
new file mode 100644
index 000000000000..5ba0fb6b094d
--- /dev/null
+++ b/include/linux/irqchip/arm-gic-v4.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2016,2017 ARM Limited, All Rights Reserved.
+ * Author: Marc Zyngier <marc.zyngier@arm.com>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __LINUX_IRQCHIP_ARM_GIC_V4_H
+#define __LINUX_IRQCHIP_ARM_GIC_V4_H
+
+struct its_vpe;
+
+/* Embedded in kvm.arch */
+struct its_vm {
+	struct fwnode_handle	*fwnode;
+	struct irq_domain	*domain;
+	struct page		*vprop_page;
+	struct its_vpe		**vpes;
+	int			nr_vpes;
+	irq_hw_number_t		db_lpi_base;
+	unsigned long		*db_bitmap;
+	int			nr_db_lpis;
+};
+
+/* Embedded in kvm_vcpu.arch */
+struct its_vpe {
+	struct page 		*vpt_page;
+	struct its_vm		*its_vm;
+	/* Doorbell interrupt */
+	int			irq;
+	irq_hw_number_t		vpe_db_lpi;
+	/*
+	 * This collection ID is used to indirect the target
+	 * redistributor for this VPE. The ID itself isn't involved in
+	 * programming of the ITS.
+	 */
+	u16			col_idx;
+	/* Unique (system-wide) VPE identifier */
+	u16			vpe_id;
+	/* Implementation Defined Area Invalid */
+	bool			idai;
+	/* Pending VLPIs on schedule out? */
+	bool			pending_last;
+};
+
+/*
+ * struct its_vlpi_map: structure describing the mapping of a
+ * VLPI. Only to be interpreted in the context of a physical interrupt
+ * it complements.  To be used as the vcpu_info passed to
+ * irq_set_vcpu_affinity().
+ *
+ * @vm:		Pointer to the GICv4 notion of a VM
+ * @vintid:	Virtual LPI number
+ * @db_enabled:	Is the VPE doorbell to be generated?
+ * @vpe_idx:	Index (0-based) of the VPE in this VM. Not the vpe_id!
+ */
+struct its_vlpi_map {
+	struct its_vm		*vm;
+	u32			vintid;
+	bool			db_enabled;
+	u16			vpe_idx;
+};
+
+enum its_vcpu_info_cmd_type {
+	MAP_VLPI,
+	GET_VLPI,
+	PROP_UPDATE_VLPI,
+	PROP_UPDATE_AND_INV_VLPI,
+	SCHEDULE_VPE,
+	DESCHEDULE_VPE,
+	INVALL_VPE,
+};
+
+struct its_cmd_info {
+	enum its_vcpu_info_cmd_type	cmd_type;
+	union {
+		struct its_vlpi_map	*map;
+		u8			config;
+	};
+};
+
+#endif
-- 
2.11.0

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH v3 00/59] irqchip: KVM: Add support for GICv4 Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 10/59] irqchip/gic-v3-its: Split out pending table allocation Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 37/59] KVM: arm/arm64: vgic: Move kvm_vgic_destroy call around Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 12/59] irqchip/gic-v3-its: Generalize device table allocation Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 55/59] KVM: arm/arm64: GICv4: Enable VLPI support Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 14/59] irqchip/gic-v4: Add management structure definitions Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 54/59] KVM: arm/arm64: GICv4: Enable virtual cpuif if VLPIs can be delivered Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 45/59] KVM: arm/arm64: GICv4: Handle CLEAR applied to a VLPI Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 49/59] KVM: arm/arm64: GICv4: Propagate VLPI properties at map time Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 59/59] irqchip/gic-v3-its: Workaround Huawei D05 redistributor addressing Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 47/59] KVM: arm/arm64: GICv4: Propagate property updates to VLPIs Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 05/59] irqchip/gic-v3-its: Add probing for VLPI properties Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 29/59] irqchip/gic-v3-its: Set implementation defined bit to enable VLPIs Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 33/59] irqchip/gic-v4: Add some basic documentation Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 35/59] irqchip/gic-v3: Advertise GICv4 support to KVM Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 41/59] KVM: arm/arm64: GICv4: Wire mapping/unmapping of VLPIs in VFIO irq bypass Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 58/59] irqchip/gic-v3-its: Pass its_node pointer to each command bulder Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 39/59] KVM: arm/arm64: GICv4: Add property field and per-VM predicate Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 43/59] KVM: arm/arm64: GICv4: Unmap VLPI when freeing an LPI Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 31/59] irqchip/gic-v4: Add VPE command interface Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 24/59] irqchip/gic-v3-its: Add VPE invalidation hook Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 19/59] irqchip/gic-v3-its: Add VPE domain infrastructure Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 40/59] KVM: arm/arm64: GICv4: Add init/teardown of the per-VM vPE irq domain Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:30 +0200
  [PATCH v3 52/59] KVM: arm/arm64: GICv4: Use the doorbell interrupt as an unblocking source Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:40 +0200
  [PATCH v3 53/59] KVM: arm/arm64: GICv4: Hook vPE scheduling into vgic flush/sync Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:40 +0200
  [PATCH v3 44/59] KVM: arm/arm64: GICv4: Handle MOVI applied to a VLPI Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:40 +0200
  [PATCH v3 48/59] KVM: arm/arm64: GICv4: Handle INVALL applied to a vPE Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:40 +0200
  [PATCH v3 51/59] KVM: arm/arm64: GICv4: Add doorbell interrupt handling Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:40 +0200
    Re: [PATCH v3 51/59] KVM: arm/arm64: GICv4: Add doorbell interrupt  handling Marc Zyngier <marc.zyngier@arm.com> - 2017-08-04 09:50 +0200
  [PATCH v3 42/59] KVM: arm/arm64: GICv4: Handle INT command applied to a VLPI Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:40 +0200
  [PATCH v3 46/59] KVM: arm/arm64: GICv4: Handle MOVALL applied to a vPE Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:40 +0200
  [PATCH v3 56/59] KVM: arm/arm64: GICv4: Prevent heterogenous systems from using GICv4 Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:40 +0200
  [PATCH v3 50/59] KVM: arm/arm64: GICv4: Use pending_last as a scheduling hint Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:40 +0200
  [PATCH v3 57/59] KVM: arm/arm64: GICv4: Theory of operations Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 19:40 +0200
  [PATCH v3 38/59] KVM: arm/arm64: vITS: Add MSI translation helpers Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 32/59] irqchip/gic-v4: Add VLPI configuration interface Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 08/59] irqchip/gic-v3-its: Split out property table allocation Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 30/59] irqchip/gic-v4: Add per-VM VPE domain creation Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 36/59] KVM: arm: Select ARM_GIC_V3 and ARM_GIC_V3_ITS Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 09/59] irqchip/gic-v3-its: Allow use of indirect VCPU tables Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 13/59] irqchip/gic-v3-its: Generalize LPI configuration Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 34/59] irqchip/gic-v4: Enable low-level GICv4 operations Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 22/59] irqchip/gic-v3-its: Add VPENDBASER/VPROPBASER accessors Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 15/59] irqchip/gic-v3-its: Add GICv4 ITS command definitions Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 27/59] irqchip/gic-v3-its: Support VPE doorbell invalidation even when !DirectLPI Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 26/59] irqchip/gic-v3-its: Add VPE interrupt masking Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 16/59] irqchip/gic-v3-its: Add VLPI configuration hook Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 28/59] irqchip/gic-v3-its: Allow doorbell interrupts to be injected/cleared Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 06/59] irqchip/gic-v3-its: Macro-ize its_send_single_command Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 25/59] irqchip/gic-v3-its: Add VPE affinity changes Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 17/59] irqchip/gic-v3-its: Add VLPI map/unmap operations Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 11/59] irqchip/gic-v3-its: Rework LPI freeing Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 20/59] irqchip/gic-v3-its: Add VPE irq domain allocation/teardown Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 18/59] irqchip/gic-v3-its: Add VLPI configuration handling Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 23/59] irqchip/gic-v3-its: Add VPE scheduling Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:00 +0200
  [PATCH v3 02/59] irqchip/gic-v3: Add redistributor iterator Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:10 +0200
  [PATCH v3 01/59] genirq: Let irq_set_vcpu_affinity() iterate over hierarchy Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:10 +0200
  [PATCH v3 07/59] irqchip/gic-v3-its: Implement irq_set_irqchip_state for pending state Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:10 +0200
  [PATCH v3 03/59] irqchip/gic-v3: Add VLPI/DirectLPI discovery Marc Zyngier <marc.zyngier@arm.com> - 2017-07-31 20:10 +0200

csiph-web