mk-rootfs.sh

hc

2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376

 kernel/arch/hexagon/kernel/process.c
..
..
@@ -1,21 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Process creation support for Hexagon
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  *
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  * Copyright (c) 2010-2012, The Linux Foundation. All rights reserved.
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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 and
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- * only version 2 as 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, write to the Free Software
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- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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- * 02110-1301, USA.
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  */
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 #include <linux/sched.h>
..
..
@@ -57,14 +44,14 @@
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 {
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 	__vmwait();
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 	/*  interrupts wake us up, but irqs are still disabled */
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-	local_irq_enable();
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+	raw_local_irq_enable();
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 }
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 /*
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  * Copy architecture-specific thread state
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  */
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-int copy_thread(unsigned long clone_flags, unsigned long usp,
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-		unsigned long arg, struct task_struct *p)
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+int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long arg,
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+		struct task_struct *p, unsigned long tls)
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 {
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 	struct thread_info *ti = task_thread_info(p);
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 	struct hexagon_switch_stack *ss;
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@@ -86,7 +73,7 @@
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 						    sizeof(*ss));
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 	ss->lr = (unsigned long)ret_from_fork;
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 	p->thread.switch_sp = ss;
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-	if (unlikely(p->flags & PF_KTHREAD)) {
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+	if (unlikely(p->flags & (PF_KTHREAD | PF_IO_WORKER))) {
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 		memset(childregs, 0, sizeof(struct pt_regs));
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 		/* r24 <- fn, r25 <- arg */
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 		ss->r24 = usp;
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@@ -113,7 +100,7 @@
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 	 * ugp is used to provide TLS support.
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 	 */
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 	if (clone_flags & CLONE_SETTLS)
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-		childregs->ugp = childregs->r04;
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+		childregs->ugp = tls;
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 	/*
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 	 * Parent sees new pid -- not necessary, not even possible at
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@@ -167,15 +154,6 @@
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 }
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 /*
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- * Required placeholder.
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- */
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-int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
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-{
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-	return 0;
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-}
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-
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-
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-/*
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  * Called on the exit path of event entry; see vm_entry.S
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  *
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  * Interrupts will already be disabled.
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@@ -196,13 +174,12 @@
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 		return 1;
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 	}
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-	if (thread_info_flags & _TIF_SIGPENDING) {
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+	if (thread_info_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL)) {
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 		do_signal(regs);
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 		return 1;
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 	}
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 	if (thread_info_flags & _TIF_NOTIFY_RESUME) {
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-		clear_thread_flag(TIF_NOTIFY_RESUME);
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 		tracehook_notify_resume(regs);
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 		return 1;
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 	}