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ANDROID: gic: Add vendor hook for gic-v3 resume

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Add vendor hook for gic-v3 resume to allow vendor GIC enhancement.

Bug: 168730134
Change-Id: Id3298715355c8f592f58393db6aa903b18dd812c
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
This commit is contained in:
Elliot Berman 2020-09-14 15:35:41 -07:00 committed by Todd Kjos
parent f14e5bfb39
commit 0df7b95498
3 changed files with 55 additions and 0 deletions
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2
drivers/android/vendor_hooks.c
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@ -17,6 +17,7 @@
#include <trace/hooks/cpuidle.h>
#include <trace/hooks/topology.h>
#include <trace/hooks/mpam.h>
#include <trace/hooks/gic.h>
/*
* Export tracepoints that act as a bare tracehook (ie: have no trace event
@ -55,3 +56,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sched_show_task);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpu_idle);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mpam_set);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_find_busiest_group);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_gic_resume);

24
drivers/irqchip/irq-gic-v3.c
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@ -18,6 +18,7 @@
#include <linux/percpu.h>
#include <linux/refcount.h>
#include <linux/slab.h>
#include <linux/syscore_ops.h>
#include <linux/wakeup_reason.h>
@ -31,6 +32,8 @@
#include <asm/smp_plat.h>
#include <asm/virt.h>
#include <trace/hooks/gic.h>
#include "irq-gic-common.h"
#define GICD_INT_NMI_PRI (GICD_INT_DEF_PRI & ~0x80)
@ -1240,6 +1243,26 @@ static void gic_cpu_pm_init(void)
static inline void gic_cpu_pm_init(void) { }
#endif /* CONFIG_CPU_PM */
#ifdef CONFIG_PM
static void gic_resume(void)
{
trace_android_vh_gic_resume(gic_data.domain, gic_data.dist_base);
}
static struct syscore_ops gic_syscore_ops = {
.resume = gic_resume,
};
static void gic_syscore_init(void)
{
register_syscore_ops(&gic_syscore_ops);
}
#else
static inline void gic_syscore_init(void) { }
#endif
static struct irq_chip gic_chip = {
.name = "GICv3",
.irq_mask = gic_mask_irq,
@ -1653,6 +1676,7 @@ static int __init gic_init_bases(void __iomem *dist_base,
gic_dist_init();
gic_cpu_init();
gic_cpu_pm_init();
gic_syscore_init();
if (gic_dist_supports_lpis()) {
its_init(handle, &gic_data.rdists, gic_data.domain);

29
include/trace/hooks/gic.h Normal file
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@ -0,0 +1,29 @@
/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM gic
#define TRACE_INCLUDE_PATH trace/hooks
#if !defined(_TRACE_HOOK_GIC_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_HOOK_GIC_H
#include <linux/irqdomain.h>
#include <linux/tracepoint.h>
#include <trace/hooks/vendor_hooks.h>
#if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_ANDROID_VENDOR_HOOKS)
DECLARE_HOOK(android_vh_gic_resume,
TP_PROTO(struct irq_domain *domain, void __iomem *dist_base),
TP_ARGS(domain, dist_base));
#else
#define trace_android_vh_gic_resume(domain, dist_base)
#endif
#endif /* _TRACE_HOOK_GIC_H */
/* This part must be outside protection */
#include <trace/define_trace.h>