mirror of https://gitee.com/openkylin/linux.git
hexagon: switch to copy_thread_tls()
Use the copy_thread_tls() calling convention which passes tls through a register. This is required so we can remove the copy_thread{_tls}() split and remove the HAVE_COPY_THREAD_TLS macro. Cc: linux-hexagon@vger.kernel.org Acked-by: Brian Cain <bcain@codeaurora.org> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
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@ -31,6 +31,7 @@ config HEXAGON
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select GENERIC_CLOCKEVENTS_BROADCAST
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select MODULES_USE_ELF_RELA
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select GENERIC_CPU_DEVICES
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select HAVE_COPY_THREAD_TLS
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help
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Qualcomm Hexagon is a processor architecture designed for high
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performance and low power across a wide variety of applications.
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@ -50,8 +50,8 @@ void arch_cpu_idle(void)
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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_tls(unsigned long clone_flags, unsigned long usp,
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unsigned long arg, 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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@ -100,7 +100,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
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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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