riscv64_platform_api.c File Reference

#include "mos/assert.h"
#include "mos/platform/platform.h"
#include "mos/riscv64/cpu/cpu.h"
#include "mos/tasks/signal.h"
#include "mos/tasks/task_types.h"
#include <mos/platform_syscall.h>
#include <mos_stdlib.h>

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Macros
#define	FLEN   64
#define	f_op(reg, val)
#define	f_op(reg, val)

Typedefs
typedef void(*	switch_func_t) ()

Functions
void	riscv64_do_context_switch (ptr_t *old_stack, ptr_t new_stack, switch_func_t switcher, bool *lock)
static void	riscv64_start_user_thread ()
static void	riscv64_start_kernel_thread ()
void	riscv64_normal_switch_impl ()
void	platform_shutdown ()
u32	platform_current_cpu_id ()
void	platform_cpu_idle ()
void	platform_dump_regs (platform_regs_t *regs)
platform_regs_t *	platform_thread_regs (const thread_t *thread)
static void	thread_setup_common (thread_t *thread)
void	platform_context_setup_main_thread (thread_t *thread, ptr_t entry, ptr_t sp, int argc, ptr_t argv, ptr_t envp)
void	platform_context_setup_child_thread (thread_t *thread, thread_entry_t entry, void *arg)
void	platform_context_clone (const thread_t *from, thread_t *to)
void	platform_context_cleanup (thread_t *thread)
void	platform_interrupt_disable ()
void	platform_interrupt_enable ()
void	platform_switch_mm (const mm_context_t *new_mm)
static void	do_save_fp_context (thread_t *thread)
void	do_restore_fp_context (thread_t *thread)
void	platform_switch_to_thread (thread_t *current, thread_t *new_thread, switch_flags_t switch_flags)
void	platform_return_to_userspace (platform_regs_t *regs)
u64	platform_arch_syscall (u64 syscall, u64 arg1, u64 arg2, u64 arg3, u64 arg4)
void	platform_ipi_send (u8 target_cpu, ipi_type_t type)
void	platform_dump_stack (platform_regs_t *regs)
void	platform_syscall_setup_restart_context (platform_regs_t *regs, reg_t syscall_nr)
void	platform_syscall_store_retval (platform_regs_t *regs, reg_t result)
void	platform_jump_to_signal_handler (const platform_regs_t *regs, const sigreturn_data_t *sigreturn_data, const sigaction_t *sa)
void	platform_restore_from_signal_handler (void *sp)

Macro Definition Documentation

FLEN

#define FLEN   64

Definition at line 143 of file riscv64_platform_api.c.

f_op [1/2]

#define f_op	(		reg,
			val )

Value:

__asm__ volatile("fld " #reg ", %0" : : "m"(thread->platform_options.f[val]))

Referenced by do_restore_fp_context(), and do_save_fp_context().

f_op [2/2]

#define f_op	(		reg,
			val )

Value:

__asm__ volatile("fsd " #reg ", %0" : : "m"(thread->platform_options.f[val]))

Typedef Documentation

switch_func_t

typedef void(* switch_func_t) ()

Definition at line 13 of file riscv64_platform_api.c.

Function Documentation

riscv64_do_context_switch()

void riscv64_do_context_switch ( ptr_t * old_stack, ptr_t new_stack, switch_func_t switcher, bool * lock )

extern

Referenced by platform_switch_to_thread().

riscv64_start_user_thread()

static void riscv64_start_user_thread ( )

static

Definition at line 16 of file riscv64_platform_api.c.

Referenced by platform_switch_to_thread().

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riscv64_start_kernel_thread()

static void riscv64_start_kernel_thread ( )

static

Definition at line 23 of file riscv64_platform_api.c.

Referenced by platform_switch_to_thread().

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riscv64_normal_switch_impl()

void riscv64_normal_switch_impl ( )

extern

Referenced by platform_switch_to_thread().

platform_shutdown()

void platform_shutdown

(

void

)

Definition at line 34 of file riscv64_platform_api.c.

Referenced by power_shutdown().

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platform_current_cpu_id()

u32 platform_current_cpu_id

(

void

)

Definition at line 41 of file riscv64_platform_api.c.

Referenced by do_syslog(), enter_scheduler(), and platform_ap_entry().

platform_cpu_idle()

void platform_cpu_idle

(

void

)

Definition at line 46 of file riscv64_platform_api.c.

Referenced by idle_task(), and platform_shutdown().

platform_dump_regs()

void platform_dump_regs

(

platform_regs_t *

regs

)

Definition at line 51 of file riscv64_platform_api.c.

Referenced by invalid_page_fault(), try_handle_kernel_panics_at(), x86_handle_exception(), and x86_handle_nmi().

platform_thread_regs()

platform_regs_t * platform_thread_regs

(

const thread_t *

thread

)

Definition at line 64 of file riscv64_platform_api.c.

Referenced by platform_arch_syscall(), platform_context_clone(), platform_context_setup_child_thread(), platform_context_setup_main_thread(), process_do_execveat(), riscv64_start_kernel_thread(), riscv64_start_user_thread(), x86_setup_thread_common(), x86_start_kernel_thread(), and x86_start_user_thread().

thread_setup_common()

static void thread_setup_common ( thread_t * thread )

static

Definition at line 69 of file riscv64_platform_api.c.

Referenced by platform_context_setup_child_thread(), and platform_context_setup_main_thread().

platform_context_setup_main_thread()

void platform_context_setup_main_thread	(	thread_t *	thread,
		ptr_t	entry,
		ptr_t	sp,
		int	argc,
		ptr_t	argv,
		ptr_t	envp )

Definition at line 75 of file riscv64_platform_api.c.

Referenced by elf_do_fill_process().

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platform_context_setup_child_thread()

void platform_context_setup_child_thread	(	thread_t *	thread,
		thread_entry_t	entry,
		void *	arg )

Definition at line 86 of file riscv64_platform_api.c.

Referenced by create_thread(), and kthread_create_no_sched().

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platform_context_clone()

void platform_context_clone	(	const thread_t *	from,
		thread_t *	to )

Definition at line 106 of file riscv64_platform_api.c.

Referenced by process_do_fork().

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platform_context_cleanup()

void platform_context_cleanup

(

thread_t *

thread

)

Definition at line 119 of file riscv64_platform_api.c.

Referenced by process_do_execveat(), and thread_destroy().

platform_interrupt_disable()

void platform_interrupt_disable

(

void

)

Definition at line 125 of file riscv64_platform_api.c.

Referenced by try_handle_kernel_panics_at().

platform_interrupt_enable()

void platform_interrupt_enable

(

void

)

Definition at line 131 of file riscv64_platform_api.c.

Referenced by idle_task().

platform_switch_mm()

void platform_switch_mm

(

const mm_context_t *

new_mm

)

Definition at line 137 of file riscv64_platform_api.c.

Referenced by mm_switch_context(), mos_start_kernel(), and platform_ap_entry().

do_save_fp_context()

static void do_save_fp_context ( thread_t * thread )

static

Definition at line 145 of file riscv64_platform_api.c.

Referenced by platform_switch_to_thread().

do_restore_fp_context()

void do_restore_fp_context

(

thread_t *

thread

)

Definition at line 187 of file riscv64_platform_api.c.

Referenced by platform_switch_to_thread().

platform_switch_to_thread()

void platform_switch_to_thread	(	thread_t *	current,
		thread_t *	new_thread,
		switch_flags_t	switch_flags )

Definition at line 228 of file riscv64_platform_api.c.

Referenced by reschedule().

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platform_return_to_userspace()

void platform_return_to_userspace

(

platform_regs_t *

regs

)

Definition at line 252 of file riscv64_platform_api.c.

Referenced by platform_jump_to_signal_handler(), platform_restore_from_signal_handler(), process_do_execveat(), riscv64_start_user_thread(), riscv64_trap_handler(), and x86_start_user_thread().

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platform_arch_syscall()

u64 platform_arch_syscall	(	u64	syscall,
		u64	arg1,
		u64	arg2,
		u64	arg3,
		u64	arg4 )

Definition at line 265 of file riscv64_platform_api.c.

Referenced by arch_syscall().

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platform_ipi_send()

void platform_ipi_send	(	u8	target_cpu,
		ipi_type_t	type )

Definition at line 283 of file riscv64_platform_api.c.

platform_dump_stack()

void platform_dump_stack

(

platform_regs_t *

regs

)

Definition at line 290 of file riscv64_platform_api.c.

Referenced by invalid_page_fault(), try_handle_kernel_panics_at(), and x86_handle_exception().

platform_syscall_setup_restart_context()

void platform_syscall_setup_restart_context	(	platform_regs_t *	regs,
		reg_t	syscall_nr )

Definition at line 303 of file riscv64_platform_api.c.

Referenced by signal_exit_to_user_prepare_syscall().

platform_syscall_store_retval()

void platform_syscall_store_retval	(	platform_regs_t *	regs,
		reg_t	result )

Definition at line 309 of file riscv64_platform_api.c.

Referenced by signal_exit_to_user_prepare_syscall().

platform_jump_to_signal_handler()

void platform_jump_to_signal_handler	(	const platform_regs_t *	regs,
		const sigreturn_data_t *	sigreturn_data,
		const sigaction_t *	sa )

Definition at line 314 of file riscv64_platform_api.c.

Referenced by do_signal_exit_to_user_prepare().

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platform_restore_from_signal_handler()

void platform_restore_from_signal_handler

(

void *

sp

)

Definition at line 331 of file riscv64_platform_api.c.

Referenced by MOS_STATIC_ASSERT().

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