From 01573e231f18eb2d99162747186f59511f56b64d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 08 Dec 2023 10:40:48 +0000
Subject: [PATCH] 移去rt
---
kernel/arch/arm64/include/asm/smp.h | 67 ++++++++++++++-------------------
1 files changed, 29 insertions(+), 38 deletions(-)
diff --git a/kernel/arch/arm64/include/asm/smp.h b/kernel/arch/arm64/include/asm/smp.h
index 79a9aa2..030eebc 100644
--- a/kernel/arch/arm64/include/asm/smp.h
+++ b/kernel/arch/arm64/include/asm/smp.h
@@ -1,31 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2012 ARM Ltd.
- *
- * 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 __ASM_SMP_H
#define __ASM_SMP_H
-/* Values for secondary_data.status */
+#include <linux/const.h>
-#define CPU_MMU_OFF (-1)
-#define CPU_BOOT_SUCCESS (0)
+/* Values for secondary_data.status */
+#define CPU_STUCK_REASON_SHIFT (8)
+#define CPU_BOOT_STATUS_MASK ((UL(1) << CPU_STUCK_REASON_SHIFT) - 1)
+
+#define CPU_MMU_OFF (-1)
+#define CPU_BOOT_SUCCESS (0)
/* The cpu invoked ops->cpu_die, synchronise it with cpu_kill */
-#define CPU_KILL_ME (1)
+#define CPU_KILL_ME (1)
/* The cpu couldn't die gracefully and is looping in the kernel */
-#define CPU_STUCK_IN_KERNEL (2)
+#define CPU_STUCK_IN_KERNEL (2)
/* Fatal system error detected by secondary CPU, crash the system */
-#define CPU_PANIC_KERNEL (3)
+#define CPU_PANIC_KERNEL (3)
+
+#define CPU_STUCK_REASON_52_BIT_VA (UL(1) << CPU_STUCK_REASON_SHIFT)
+#define CPU_STUCK_REASON_NO_GRAN (UL(2) << CPU_STUCK_REASON_SHIFT)
#ifndef __ASSEMBLY__
@@ -46,17 +42,18 @@
*/
#define raw_smp_processor_id() (*raw_cpu_ptr(&cpu_number))
+/*
+ * Logical CPU mapping.
+ */
+extern u64 __cpu_logical_map[NR_CPUS];
+extern u64 cpu_logical_map(unsigned int cpu);
+
+static inline void set_cpu_logical_map(unsigned int cpu, u64 hwid)
+{
+ __cpu_logical_map[cpu] = hwid;
+}
+
struct seq_file;
-
-/*
- * generate IPI list text
- */
-extern void show_ipi_list(struct seq_file *p, int prec);
-
-/*
- * Called from C code, this handles an IPI.
- */
-extern void handle_IPI(int ipinr, struct pt_regs *regs);
/*
* Discover the set of possible CPUs and determine their
@@ -65,17 +62,9 @@
extern void smp_init_cpus(void);
/*
- * Provide a function to raise an IPI cross call on CPUs in callmap.
+ * Register IPI interrupts with the arch SMP code
*/
-extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int));
-
-extern void (*__smp_cross_call)(const struct cpumask *, unsigned int);
-
-/*
- * Provide a function to set a callback function pointer for updating the ipi
- * history.
- */
-extern void set_update_ipi_history_callback(void (*fn)(int));
+extern void set_smp_ipi_range(int ipi_base, int nr_ipi);
/*
* Called from the secondary holding pen, this is the secondary CPU entry point.
@@ -100,6 +89,8 @@
extern void arch_send_call_function_single_ipi(int cpu);
extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
+extern int nr_ipi_get(void);
+extern struct irq_desc **ipi_desc_get(void);
#ifdef CONFIG_ARM64_ACPI_PARKING_PROTOCOL
extern void arch_send_wakeup_ipi_mask(const struct cpumask *mask);
--
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