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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/include/kernel/syscalls.H $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2010,2014 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
/** @file syscalls.H
* @brief Defines all the system call IDs to be shared between the kernel and
* the system libc.
*/
#ifndef __KERNEL_SYSCALLS_H
#define __KERNEL_SYSCALLS_H
namespace Systemcalls
{
/** @enum SysCalls
* @brief List of normal system calls and their IDs.
*
* These are passed by userspace code via r3 when the sc instruction is
* executed. The kernel performs a case statement to switch to the
* appropriate system call handler.
*
* @note TASK_MIGRATE_TO_MASTER value must be kept in sync with start.S.
* @note TASK_END value must be kept in sync with start.S.
*/
enum SysCalls
{
/** task_yield() */
TASK_YIELD = 0,
/** task_create() */
TASK_START = 1,
/** task_end() */
TASK_END = 2,
/** task_affinity_migrate_to_master() */
TASK_MIGRATE_TO_MASTER = 3,
/** task_wait() / task_wait_tid() */
TASK_WAIT,
/** msgq_create() */
MSGQ_CREATE,
/** msgq_destroy() */
MSGQ_DESTROY,
/** VFS internal */
MSGQ_REGISTER_ROOT,
/** VFS internal */
MSGQ_RESOLVE_ROOT,
/** msg_send() */
MSG_SEND,
/** msg_sendrecv() */
MSG_SENDRECV,
/** msg_respond() */
MSG_RESPOND,
/** msg_wait() */
MSG_WAIT,
/** dev_map() */
DEV_MAP,
/** dev_unmap() */
DEV_UNMAP,
/** nanosleep() */
TIME_NANOSLEEP,
/** futex_wake() futex_wait() futex_requeue() */
SYS_FUTEX,
/** shutdown() */
MISC_SHUTDOWN,
/** cpu_core_type() */
MISC_CPUCORETYPE,
/** cpu_dd_level() */
MISC_CPUDDLEVEL,
/** cpu_start_core() */
MISC_CPUSTARTCORE,
/** cpu_spr_value() */
MISC_CPUSPRVALUE,
/** cpu_nap() - Hidden syscall */
MISC_CPUNAP,
/** cpu_master_winkle() */
MISC_CPUWINKLE,
/** mm_alloc_block() */
MM_ALLOC_BLOCK,
/** mm_remove_pages() */
MM_REMOVE_PAGES,
/** mm_set_permission() */
MM_SET_PERMISSION,
/** mm_alloc_pages() */
MM_ALLOC_PAGES,
/** mm_virt_to_phys() */
MM_VIRT_TO_PHYS,
/** mm_extend() */
MM_EXTEND,
/** mm_linear_map() */
MM_LINEAR_MAP,
/** critassert() */
MISC_CRITASSERT,
SYSCALL_MAX
};
/** @enum SysCalls_FastPath
* @brief List of fast-path system calls and their IDs.
*
* @note If any of these change, their handling in start.S must also be
* updated. The ASM code relies on these values.
*/
enum SysCalls_FastPath
{
/** mmio_hmer_read() */
MMIO_HMER_READ = 0x0800,
/** mmio_hmer_write() */
MMIO_HMER_WRITE = 0x0801,
/** mmio_scratch_read() */
MMIO_SCRATCH_READ = 0x0802,
/** mmio_scratch_write() */
MMIO_SCRATCH_WRITE = 0x0803,
/** mmio_pvr_read() */
MMIO_PVR_READ = 0x0804,
SYSCALL_FASTPATH_MAX
};
};
#endif
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