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a4261d4bb4
As promised in the previous patch, this moves the process creation helpers into a common process.c file that is shared between sparc and sparc64. It allows us to get rid of quite a bit custom assembler and the to remove the separe 32bit specific sparc_do_fork() call. One thing to note, is that when clone() was called with a separate stack for the child the assembler would align it. But copy_thread() has always been doing that too so that line wasn't needed and can thus simply be removed. Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> Acked-by: David S. Miller <davem@davemloft.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Guo Ren <guoren@kernel.org> Cc: linux-csky@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: sparclinux@vger.kernel.org Link: https://lore.kernel.org/r/20200512171527.570109-3-christian.brauner@ubuntu.com
194 lines
5.7 KiB
C
194 lines
5.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __SPARC_KERNEL_H
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#define __SPARC_KERNEL_H
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#include <linux/interrupt.h>
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#include <linux/ftrace.h>
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#include <asm/traps.h>
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#include <asm/head.h>
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#include <asm/io.h>
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/* cpu.c */
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extern const char *sparc_pmu_type;
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extern unsigned int fsr_storage;
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extern int ncpus_probed;
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/* process{_32,_64}.c */
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asmlinkage long sparc_clone(struct pt_regs *regs);
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asmlinkage long sparc_fork(struct pt_regs *regs);
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asmlinkage long sparc_vfork(struct pt_regs *regs);
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#ifdef CONFIG_SPARC64
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/* setup_64.c */
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struct seq_file;
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void cpucap_info(struct seq_file *);
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static inline unsigned long kimage_addr_to_ra(const void *p)
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{
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unsigned long val = (unsigned long) p;
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return kern_base + (val - KERNBASE);
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}
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/* sys_sparc_64.c */
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asmlinkage long sys_kern_features(void);
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/* unaligned_64.c */
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asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn);
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int handle_popc(u32 insn, struct pt_regs *regs);
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void handle_lddfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr);
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void handle_stdfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr);
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/* smp_64.c */
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void __irq_entry smp_call_function_client(int irq, struct pt_regs *regs);
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void __irq_entry smp_call_function_single_client(int irq, struct pt_regs *regs);
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void __irq_entry smp_penguin_jailcell(int irq, struct pt_regs *regs);
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void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs);
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/* kgdb_64.c */
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void __irq_entry smp_kgdb_capture_client(int irq, struct pt_regs *regs);
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/* pci.c */
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#ifdef CONFIG_PCI
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int ali_sound_dma_hack(struct device *dev, u64 device_mask);
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#else
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#define ali_sound_dma_hack(dev, mask) (0)
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#endif
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/* signal32.c */
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void do_sigreturn32(struct pt_regs *regs);
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asmlinkage void do_rt_sigreturn32(struct pt_regs *regs);
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void do_signal32(struct pt_regs * regs);
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asmlinkage int do_sys32_sigstack(u32 u_ssptr, u32 u_ossptr, unsigned long sp);
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/* time_64.c */
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void __init time_init_early(void);
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/* compat_audit.c */
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extern unsigned int sparc32_dir_class[];
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extern unsigned int sparc32_chattr_class[];
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extern unsigned int sparc32_write_class[];
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extern unsigned int sparc32_read_class[];
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extern unsigned int sparc32_signal_class[];
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int sparc32_classify_syscall(unsigned int syscall);
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#endif
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#ifdef CONFIG_SPARC32
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/* setup_32.c */
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struct linux_romvec;
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void sparc32_start_kernel(struct linux_romvec *rp);
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/* cpu.c */
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void cpu_probe(void);
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/* traps_32.c */
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void handle_hw_divzero(struct pt_regs *regs, unsigned long pc,
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unsigned long npc, unsigned long psr);
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/* irq_32.c */
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extern struct irqaction static_irqaction[];
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extern int static_irq_count;
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extern spinlock_t irq_action_lock;
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void unexpected_irq(int irq, void *dev_id, struct pt_regs * regs);
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void init_IRQ(void);
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/* sun4m_irq.c */
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void sun4m_init_IRQ(void);
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void sun4m_unmask_profile_irq(void);
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void sun4m_clear_profile_irq(int cpu);
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/* sun4m_smp.c */
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void sun4m_cpu_pre_starting(void *arg);
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void sun4m_cpu_pre_online(void *arg);
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void __init smp4m_boot_cpus(void);
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int smp4m_boot_one_cpu(int i, struct task_struct *idle);
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void __init smp4m_smp_done(void);
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void smp4m_cross_call_irq(void);
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void smp4m_percpu_timer_interrupt(struct pt_regs *regs);
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/* sun4d_irq.c */
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extern spinlock_t sun4d_imsk_lock;
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void sun4d_init_IRQ(void);
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int sun4d_request_irq(unsigned int irq,
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irq_handler_t handler,
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unsigned long irqflags,
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const char *devname, void *dev_id);
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int show_sun4d_interrupts(struct seq_file *, void *);
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void sun4d_distribute_irqs(void);
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void sun4d_free_irq(unsigned int irq, void *dev_id);
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/* sun4d_smp.c */
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void sun4d_cpu_pre_starting(void *arg);
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void sun4d_cpu_pre_online(void *arg);
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void __init smp4d_boot_cpus(void);
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int smp4d_boot_one_cpu(int i, struct task_struct *idle);
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void __init smp4d_smp_done(void);
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void smp4d_cross_call_irq(void);
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void smp4d_percpu_timer_interrupt(struct pt_regs *regs);
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/* leon_smp.c */
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void leon_cpu_pre_starting(void *arg);
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void leon_cpu_pre_online(void *arg);
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void leonsmp_ipi_interrupt(void);
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void leon_cross_call_irq(void);
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/* head_32.S */
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extern unsigned int t_nmi[];
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extern unsigned int linux_trap_ipi15_sun4d[];
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extern unsigned int linux_trap_ipi15_sun4m[];
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extern struct tt_entry trapbase;
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extern struct tt_entry trapbase_cpu1;
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extern struct tt_entry trapbase_cpu2;
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extern struct tt_entry trapbase_cpu3;
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extern char cputypval[];
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/* entry.S */
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extern unsigned long lvl14_save[4];
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extern unsigned int real_irq_entry[];
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extern unsigned int smp4d_ticker[];
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extern unsigned int patchme_maybe_smp_msg[];
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void floppy_hardint(void);
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/* trampoline_32.S */
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extern unsigned long sun4m_cpu_startup;
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extern unsigned long sun4d_cpu_startup;
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/* signal_32.c */
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asmlinkage void do_sigreturn(struct pt_regs *regs);
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asmlinkage void do_rt_sigreturn(struct pt_regs *regs);
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void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0,
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unsigned long thread_info_flags);
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asmlinkage int do_sys_sigstack(struct sigstack __user *ssptr,
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struct sigstack __user *ossptr,
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unsigned long sp);
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/* ptrace_32.c */
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asmlinkage int syscall_trace(struct pt_regs *regs, int syscall_exit_p);
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/* unaligned_32.c */
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asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn);
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asmlinkage void user_unaligned_trap(struct pt_regs *regs, unsigned int insn);
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/* windows.c */
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void try_to_clear_window_buffer(struct pt_regs *regs, int who);
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/* auxio_32.c */
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void __init auxio_probe(void);
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void __init auxio_power_probe(void);
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/* pcic.c */
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extern void __iomem *pcic_regs;
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void pcic_nmi(unsigned int pend, struct pt_regs *regs);
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/* time_32.c */
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void __init time_init(void);
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#else /* CONFIG_SPARC32 */
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#endif /* CONFIG_SPARC32 */
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#endif /* !(__SPARC_KERNEL_H) */
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