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/entry-common.h | 22 ++++++++++++++++++++--
1 files changed, 20 insertions(+), 2 deletions(-)
diff --git a/kernel/include/linux/entry-common.h b/kernel/include/linux/entry-common.h
index 46c4247..3d7d78c 100644
--- a/kernel/include/linux/entry-common.h
+++ b/kernel/include/linux/entry-common.h
@@ -72,6 +72,14 @@
_TIF_NEED_RESCHED | _TIF_PATCH_PENDING | _TIF_NOTIFY_SIGNAL | \
ARCH_EXIT_TO_USER_MODE_WORK)
+/*
+ * Status codes of syscall entry when Dovetail is enabled. Must not
+ * conflict with valid syscall numbers. And with -1 which seccomp uses
+ * to skip an syscall.
+ */
+#define EXIT_SYSCALL_OOB (-2)
+#define EXIT_SYSCALL_TAIL (-3)
+
/**
* arch_check_user_regs - Architecture specific sanity check for user mode regs
* @regs: Pointer to currents pt_regs
@@ -181,7 +189,7 @@
#ifndef local_irq_enable_exit_to_user
static inline void local_irq_enable_exit_to_user(unsigned long ti_work)
{
- local_irq_enable();
+ local_irq_enable_full();
}
#endif
@@ -196,7 +204,7 @@
#ifndef local_irq_disable_exit_to_user
static inline void local_irq_disable_exit_to_user(void)
{
- local_irq_disable();
+ local_irq_disable_full();
}
#endif
@@ -341,6 +349,12 @@
*/
void irqentry_exit_to_user_mode(struct pt_regs *regs);
+enum irqentry_info {
+ IRQENTRY_INBAND_UNSTALLED = 0,
+ IRQENTRY_INBAND_STALLED,
+ IRQENTRY_OOB,
+};
+
#ifndef irqentry_state
/**
* struct irqentry_state - Opaque object for exception state storage
@@ -348,6 +362,7 @@
* exit path has to invoke rcu_irq_exit().
* @lockdep: Used exclusively in the irqentry_nmi_*() calls; ensures that
* lockdep state is restored correctly on exit from nmi.
+ * @stage_info: Information about pipeline state and current stage on IRQ entry.
*
* This opaque object is filled in by the irqentry_*_enter() functions and
* must be passed back into the corresponding irqentry_*_exit() functions
@@ -362,6 +377,9 @@
bool exit_rcu;
bool lockdep;
};
+#ifdef CONFIG_IRQ_PIPELINE
+ enum irqentry_info stage_info;
+#endif
} irqentry_state_t;
#endif
--
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