add driver 5G

hc

2024-01-31 f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2

 kernel/include/linux/irqchip/arm-gic-v4.h
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@@ -1,18 +1,7 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * Copyright (C) 2016,2017 ARM Limited, All Rights Reserved.
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  * Author: Marc Zyngier <marc.zyngier@arm.com>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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  */
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 #ifndef __LINUX_IRQCHIP_ARM_GIC_V4_H
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@@ -43,11 +32,41 @@
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 struct its_vpe {
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 	struct page 		*vpt_page;
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 	struct its_vm		*its_vm;
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+	/* per-vPE VLPI tracking */
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+	atomic_t		vlpi_count;
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 	/* Doorbell interrupt */
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 	int			irq;
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 	irq_hw_number_t		vpe_db_lpi;
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-	/* VPE proxy mapping */
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-	int			vpe_proxy_event;
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+	/* VPE resident */
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+	bool			resident;
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+	/* VPT parse complete */
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+	bool			ready;
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+	union {
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+		/* GICv4.0 implementations */
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+		struct {
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+			/* VPE proxy mapping */
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+			int	vpe_proxy_event;
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+			/* Implementation Defined Area Invalid */
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+			bool	idai;
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+		};
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+		/* GICv4.1 implementations */
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+		struct {
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+			struct fwnode_handle	*fwnode;
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+			struct irq_domain	*sgi_domain;
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+			struct {
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+				u8	priority;
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+				bool	enabled;
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+				bool	group;
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+			}			sgi_config[16];
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+			atomic_t vmapp_count;
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+		};
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+	};
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+
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+	/*
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+	 * Ensures mutual exclusion between affinity setting of the
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+	 * vPE and vLPI operations using vpe->col_idx.
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+	 */
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+	raw_spinlock_t		vpe_lock;
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 	/*
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 	 * This collection ID is used to indirect the target
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 	 * redistributor for this VPE. The ID itself isn't involved in
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@@ -56,8 +75,6 @@
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 	u16			col_idx;
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 	/* Unique (system-wide) VPE identifier */
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 	u16			vpe_id;
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-	/* Implementation Defined Area Invalid */
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-	bool			idai;
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 	/* Pending VLPIs on schedule out? */
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 	bool			pending_last;
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 };
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@@ -89,7 +106,9 @@
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 	PROP_UPDATE_AND_INV_VLPI,
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 	SCHEDULE_VPE,
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 	DESCHEDULE_VPE,
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+	COMMIT_VPE,
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 	INVALL_VPE,
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+	PROP_UPDATE_VSGI,
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 };
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 struct its_cmd_info {
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@@ -97,19 +116,33 @@
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 	union {
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 		struct its_vlpi_map	*map;
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 		u8			config;
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+		bool			req_db;
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+		struct {
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+			bool		g0en;
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+			bool		g1en;
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+		};
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+		struct {
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+			u8		priority;
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+			bool		group;
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+		};
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 	};
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 };
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 int its_alloc_vcpu_irqs(struct its_vm *vm);
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 void its_free_vcpu_irqs(struct its_vm *vm);
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-int its_schedule_vpe(struct its_vpe *vpe, bool on);
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+int its_make_vpe_resident(struct its_vpe *vpe, bool g0en, bool g1en);
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+int its_make_vpe_non_resident(struct its_vpe *vpe, bool db);
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+int its_commit_vpe(struct its_vpe *vpe);
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 int its_invall_vpe(struct its_vpe *vpe);
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 int its_map_vlpi(int irq, struct its_vlpi_map *map);
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 int its_get_vlpi(int irq, struct its_vlpi_map *map);
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 int its_unmap_vlpi(int irq);
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 int its_prop_update_vlpi(int irq, u8 config, bool inv);
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+int its_prop_update_vsgi(int irq, u8 priority, bool group);
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 struct irq_domain_ops;
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-int its_init_v4(struct irq_domain *domain, const struct irq_domain_ops *ops);
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+int its_init_v4(struct irq_domain *domain,
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+		const struct irq_domain_ops *vpe_ops,
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+		const struct irq_domain_ops *sgi_ops);
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 #endif