From 2f529f9b558ca1c1bd74be7437a84e4711743404 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 01 Nov 2024 02:11:33 +0000
Subject: [PATCH] add xenomai
---
kernel/include/linux/clocksource.h | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 52 insertions(+), 0 deletions(-)
diff --git a/kernel/include/linux/clocksource.h b/kernel/include/linux/clocksource.h
index 83a3ebf..9665974 100644
--- a/kernel/include/linux/clocksource.h
+++ b/kernel/include/linux/clocksource.h
@@ -13,12 +13,15 @@
#include <linux/timex.h>
#include <linux/time.h>
#include <linux/list.h>
+#include <linux/hashtable.h>
#include <linux/cache.h>
#include <linux/timer.h>
+#include <linux/cdev.h>
#include <linux/init.h>
#include <linux/of.h>
#include <asm/div64.h>
#include <asm/io.h>
+#include <uapi/linux/clocksource.h>
struct clocksource;
struct module;
@@ -28,7 +31,14 @@
#include <asm/clocksource.h>
#endif
+
#include <vdso/clocksource.h>
+
+enum clocksource_vdso_type {
+ CLOCKSOURCE_VDSO_NONE = 0,
+ CLOCKSOURCE_VDSO_ARCHITECTED,
+ CLOCKSOURCE_VDSO_MMIO, /* <= Must be last. */
+};
/**
* struct clocksource - hardware abstraction for a free running counter
@@ -101,6 +111,7 @@
struct list_head list;
int rating;
enum vdso_clock_mode vdso_clock_mode;
+ enum clocksource_vdso_type vdso_type;
unsigned long flags;
int (*enable)(struct clocksource *cs);
@@ -118,6 +129,36 @@
u64 wd_last;
#endif
struct module *owner;
+};
+
+struct clocksource_mmio {
+ void __iomem *reg;
+ struct clocksource clksrc;
+};
+
+struct clocksource_user_mmio {
+ struct clocksource_mmio mmio;
+ void __iomem *reg_upper;
+ unsigned int bits_lower;
+ unsigned int mask_lower;
+ unsigned int mask_upper;
+ enum clksrc_user_mmio_type type;
+ unsigned long phys_lower;
+ unsigned long phys_upper;
+ unsigned int id;
+ struct device *dev;
+ struct cdev cdev;
+ DECLARE_HASHTABLE(mappings, 10);
+ struct spinlock lock;
+ struct list_head link;
+};
+
+struct clocksource_mmio_regs {
+ void __iomem *reg_upper;
+ void __iomem *reg_lower;
+ unsigned int bits_upper;
+ unsigned int bits_lower;
+ unsigned long (*revmap)(void *);
};
/*
@@ -264,10 +305,21 @@
extern u64 clocksource_mmio_readl_down(struct clocksource *);
extern u64 clocksource_mmio_readw_up(struct clocksource *);
extern u64 clocksource_mmio_readw_down(struct clocksource *);
+extern u64 clocksource_dual_mmio_readw_up(struct clocksource *);
+extern u64 clocksource_dual_mmio_readl_up(struct clocksource *);
extern int clocksource_mmio_init(void __iomem *, const char *,
unsigned long, int, unsigned, u64 (*)(struct clocksource *));
+extern int clocksource_user_mmio_init(struct clocksource_user_mmio *ucs,
+ const struct clocksource_mmio_regs *regs,
+ unsigned long hz);
+
+extern int clocksource_user_single_mmio_init(
+ void __iomem *base, const char *name,
+ unsigned long hz, int rating, unsigned int bits,
+ u64 (*read)(struct clocksource *));
+
extern int clocksource_i8253_init(void);
#define TIMER_OF_DECLARE(name, compat, fn) \
--
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