[PATCH] spufs: allow SPU code to do syscalls
An SPU does not have a way to implement system calls itself, but it can create intercepts to the kernel. This patch uses the method defined by the JSRE interface for C99 host library calls from an SPU to implement Linux system calls. It uses the reserved SPU stop code 0x2104 for this, using the structure layout and syscall numbers for ppc64-linux. I'm still undecided wether it is better to have a list of allowed syscalls or a list of forbidden syscalls, since we can't allow an SPU to call all syscalls that are defined for ppc64-linux. This patch implements the easier choice of them, with a blacklist that only prevents an SPU from calling anything that interacts with its own execution, e.g fork, execve, clone, vfork, exit, spu_run and spu_create and everything that deals with signals. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Arnd Bergmann
Paul Mackerras
parent
a7f31841a4
commit
2dd14934c9
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@ -6,5 +6,11 @@ obj-$(CONFIG_SPU_FS) += spu-base.o spufs/
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spu-base-y += spu_base.o spu_priv1.o
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builtin-spufs-$(CONFIG_SPU_FS) += spu_syscalls.o
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obj-y += $(builtin-spufs-m)
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# needed only when building loadable spufs.ko
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spufs-modular-$(CONFIG_SPU_FS) += spu_syscalls.o
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obj-y += $(spufs-modular-m)
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# always needed in kernel
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spufs-builtin-$(CONFIG_SPU_FS) += spu_callbacks.o
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obj-y += $(spufs-builtin-y) $(spufs-builtin-m)
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@ -0,0 +1,345 @@
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/*
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* System call callback functions for SPUs
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*/
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#define DEBUG
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#include <linux/kallsyms.h>
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#include <linux/module.h>
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#include <linux/syscalls.h>
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#include <asm/spu.h>
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#include <asm/syscalls.h>
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#include <asm/unistd.h>
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/*
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* This table defines the system calls that an SPU can call.
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* It is currently a subset of the 64 bit powerpc system calls,
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* with the exact semantics.
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*
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* The reasons for disabling some of the system calls are:
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* 1. They interact with the way SPU syscalls are handled
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* and we can't let them execute ever:
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* restart_syscall, exit, for, execve, ptrace, ...
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* 2. They are deprecated and replaced by other means:
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* uselib, pciconfig_*, sysfs, ...
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* 3. They are somewhat interacting with the system in a way
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* we don't want an SPU to:
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* reboot, init_module, mount, kexec_load
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* 4. They are optional and we can't rely on them being
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* linked into the kernel. Unfortunately, the cond_syscall
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* helper does not work here as it does not add the necessary
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* opd symbols:
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* mbind, mq_open, ipc, ...
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*/
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void *spu_syscall_table[] = {
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[__NR_restart_syscall] sys_ni_syscall, /* sys_restart_syscall */
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[__NR_exit] sys_ni_syscall, /* sys_exit */
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[__NR_fork] sys_ni_syscall, /* ppc_fork */
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[__NR_read] sys_read,
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[__NR_write] sys_write,
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[__NR_open] sys_open,
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[__NR_close] sys_close,
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[__NR_waitpid] sys_waitpid,
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[__NR_creat] sys_creat,
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[__NR_link] sys_link,
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[__NR_unlink] sys_unlink,
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[__NR_execve] sys_ni_syscall, /* sys_execve */
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[__NR_chdir] sys_chdir,
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[__NR_time] sys_time,
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[__NR_mknod] sys_mknod,
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[__NR_chmod] sys_chmod,
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[__NR_lchown] sys_lchown,
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[__NR_break] sys_ni_syscall,
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[__NR_oldstat] sys_ni_syscall,
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[__NR_lseek] sys_lseek,
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[__NR_getpid] sys_getpid,
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[__NR_mount] sys_ni_syscall, /* sys_mount */
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[__NR_umount] sys_ni_syscall,
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[__NR_setuid] sys_setuid,
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[__NR_getuid] sys_getuid,
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[__NR_stime] sys_stime,
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[__NR_ptrace] sys_ni_syscall, /* sys_ptrace */
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[__NR_alarm] sys_alarm,
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[__NR_oldfstat] sys_ni_syscall,
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[__NR_pause] sys_ni_syscall, /* sys_pause */
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[__NR_utime] sys_ni_syscall, /* sys_utime */
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[__NR_stty] sys_ni_syscall,
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[__NR_gtty] sys_ni_syscall,
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[__NR_access] sys_access,
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[__NR_nice] sys_nice,
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[__NR_ftime] sys_ni_syscall,
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[__NR_sync] sys_sync,
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[__NR_kill] sys_kill,
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[__NR_rename] sys_rename,
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[__NR_mkdir] sys_mkdir,
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[__NR_rmdir] sys_rmdir,
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[__NR_dup] sys_dup,
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[__NR_pipe] sys_pipe,
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[__NR_times] sys_times,
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[__NR_prof] sys_ni_syscall,
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[__NR_brk] sys_brk,
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[__NR_setgid] sys_setgid,
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[__NR_getgid] sys_getgid,
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[__NR_signal] sys_ni_syscall, /* sys_signal */
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[__NR_geteuid] sys_geteuid,
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[__NR_getegid] sys_getegid,
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[__NR_acct] sys_ni_syscall, /* sys_acct */
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[__NR_umount2] sys_ni_syscall, /* sys_umount */
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[__NR_lock] sys_ni_syscall,
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[__NR_ioctl] sys_ioctl,
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[__NR_fcntl] sys_fcntl,
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[__NR_mpx] sys_ni_syscall,
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[__NR_setpgid] sys_setpgid,
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[__NR_ulimit] sys_ni_syscall,
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[__NR_oldolduname] sys_ni_syscall,
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[__NR_umask] sys_umask,
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[__NR_chroot] sys_chroot,
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[__NR_ustat] sys_ni_syscall, /* sys_ustat */
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[__NR_dup2] sys_dup2,
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[__NR_getppid] sys_getppid,
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[__NR_getpgrp] sys_getpgrp,
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[__NR_setsid] sys_setsid,
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[__NR_sigaction] sys_ni_syscall,
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[__NR_sgetmask] sys_sgetmask,
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[__NR_ssetmask] sys_ssetmask,
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[__NR_setreuid] sys_setreuid,
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[__NR_setregid] sys_setregid,
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[__NR_sigsuspend] sys_ni_syscall,
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[__NR_sigpending] sys_ni_syscall,
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[__NR_sethostname] sys_sethostname,
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[__NR_setrlimit] sys_setrlimit,
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[__NR_getrlimit] sys_ni_syscall,
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[__NR_getrusage] sys_getrusage,
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[__NR_gettimeofday] sys_gettimeofday,
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[__NR_settimeofday] sys_settimeofday,
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[__NR_getgroups] sys_getgroups,
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[__NR_setgroups] sys_setgroups,
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[__NR_select] sys_ni_syscall,
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[__NR_symlink] sys_symlink,
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[__NR_oldlstat] sys_ni_syscall,
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[__NR_readlink] sys_readlink,
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[__NR_uselib] sys_ni_syscall, /* sys_uselib */
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[__NR_swapon] sys_ni_syscall, /* sys_swapon */
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[__NR_reboot] sys_ni_syscall, /* sys_reboot */
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[__NR_readdir] sys_ni_syscall,
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[__NR_mmap] sys_mmap,
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[__NR_munmap] sys_munmap,
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[__NR_truncate] sys_truncate,
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[__NR_ftruncate] sys_ftruncate,
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[__NR_fchmod] sys_fchmod,
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[__NR_fchown] sys_fchown,
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[__NR_getpriority] sys_getpriority,
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[__NR_setpriority] sys_setpriority,
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[__NR_profil] sys_ni_syscall,
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[__NR_statfs] sys_ni_syscall, /* sys_statfs */
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[__NR_fstatfs] sys_ni_syscall, /* sys_fstatfs */
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[__NR_ioperm] sys_ni_syscall,
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[__NR_socketcall] sys_socketcall,
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[__NR_syslog] sys_syslog,
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[__NR_setitimer] sys_setitimer,
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[__NR_getitimer] sys_getitimer,
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[__NR_stat] sys_newstat,
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[__NR_lstat] sys_newlstat,
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[__NR_fstat] sys_newfstat,
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[__NR_olduname] sys_ni_syscall,
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[__NR_iopl] sys_ni_syscall,
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[__NR_vhangup] sys_vhangup,
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[__NR_idle] sys_ni_syscall,
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[__NR_vm86] sys_ni_syscall,
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[__NR_wait4] sys_wait4,
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[__NR_swapoff] sys_ni_syscall, /* sys_swapoff */
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[__NR_sysinfo] sys_sysinfo,
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[__NR_ipc] sys_ni_syscall, /* sys_ipc */
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[__NR_fsync] sys_fsync,
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[__NR_sigreturn] sys_ni_syscall,
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[__NR_clone] sys_ni_syscall, /* ppc_clone */
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[__NR_setdomainname] sys_setdomainname,
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[__NR_uname] ppc_newuname,
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[__NR_modify_ldt] sys_ni_syscall,
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[__NR_adjtimex] sys_adjtimex,
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[__NR_mprotect] sys_mprotect,
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[__NR_sigprocmask] sys_ni_syscall,
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[__NR_create_module] sys_ni_syscall,
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[__NR_init_module] sys_ni_syscall, /* sys_init_module */
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[__NR_delete_module] sys_ni_syscall, /* sys_delete_module */
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[__NR_get_kernel_syms] sys_ni_syscall,
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[__NR_quotactl] sys_ni_syscall, /* sys_quotactl */
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[__NR_getpgid] sys_getpgid,
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[__NR_fchdir] sys_fchdir,
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[__NR_bdflush] sys_bdflush,
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[__NR_sysfs] sys_ni_syscall, /* sys_sysfs */
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[__NR_personality] ppc64_personality,
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[__NR_afs_syscall] sys_ni_syscall,
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[__NR_setfsuid] sys_setfsuid,
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[__NR_setfsgid] sys_setfsgid,
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[__NR__llseek] sys_llseek,
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[__NR_getdents] sys_getdents,
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[__NR__newselect] sys_select,
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[__NR_flock] sys_flock,
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[__NR_msync] sys_msync,
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[__NR_readv] sys_readv,
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[__NR_writev] sys_writev,
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[__NR_getsid] sys_getsid,
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[__NR_fdatasync] sys_fdatasync,
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[__NR__sysctl] sys_ni_syscall, /* sys_sysctl */
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[__NR_mlock] sys_mlock,
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[__NR_munlock] sys_munlock,
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[__NR_mlockall] sys_mlockall,
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[__NR_munlockall] sys_munlockall,
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[__NR_sched_setparam] sys_sched_setparam,
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[__NR_sched_getparam] sys_sched_getparam,
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[__NR_sched_setscheduler] sys_sched_setscheduler,
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[__NR_sched_getscheduler] sys_sched_getscheduler,
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[__NR_sched_yield] sys_sched_yield,
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[__NR_sched_get_priority_max] sys_sched_get_priority_max,
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[__NR_sched_get_priority_min] sys_sched_get_priority_min,
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[__NR_sched_rr_get_interval] sys_sched_rr_get_interval,
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[__NR_nanosleep] sys_nanosleep,
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[__NR_mremap] sys_mremap,
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[__NR_setresuid] sys_setresuid,
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[__NR_getresuid] sys_getresuid,
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[__NR_query_module] sys_ni_syscall,
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[__NR_poll] sys_poll,
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[__NR_nfsservctl] sys_ni_syscall, /* sys_nfsservctl */
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[__NR_setresgid] sys_setresgid,
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[__NR_getresgid] sys_getresgid,
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[__NR_prctl] sys_prctl,
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[__NR_rt_sigreturn] sys_ni_syscall, /* ppc64_rt_sigreturn */
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[__NR_rt_sigaction] sys_ni_syscall, /* sys_rt_sigaction */
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[__NR_rt_sigprocmask] sys_ni_syscall, /* sys_rt_sigprocmask */
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[__NR_rt_sigpending] sys_ni_syscall, /* sys_rt_sigpending */
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[__NR_rt_sigtimedwait] sys_ni_syscall, /* sys_rt_sigtimedwait */
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[__NR_rt_sigqueueinfo] sys_ni_syscall, /* sys_rt_sigqueueinfo */
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[__NR_rt_sigsuspend] sys_ni_syscall, /* sys_rt_sigsuspend */
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[__NR_pread64] sys_pread64,
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[__NR_pwrite64] sys_pwrite64,
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[__NR_chown] sys_chown,
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[__NR_getcwd] sys_getcwd,
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[__NR_capget] sys_capget,
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[__NR_capset] sys_capset,
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[__NR_sigaltstack] sys_ni_syscall, /* sys_sigaltstack */
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[__NR_sendfile] sys_sendfile64,
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[__NR_getpmsg] sys_ni_syscall,
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[__NR_putpmsg] sys_ni_syscall,
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[__NR_vfork] sys_ni_syscall, /* ppc_vfork */
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[__NR_ugetrlimit] sys_getrlimit,
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[__NR_readahead] sys_readahead,
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[192] sys_ni_syscall,
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[193] sys_ni_syscall,
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[194] sys_ni_syscall,
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[195] sys_ni_syscall,
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[196] sys_ni_syscall,
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[197] sys_ni_syscall,
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[__NR_pciconfig_read] sys_ni_syscall, /* sys_pciconfig_read */
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[__NR_pciconfig_write] sys_ni_syscall, /* sys_pciconfig_write */
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[__NR_pciconfig_iobase] sys_ni_syscall, /* sys_pciconfig_iobase */
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[__NR_multiplexer] sys_ni_syscall,
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[__NR_getdents64] sys_getdents64,
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[__NR_pivot_root] sys_pivot_root,
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[204] sys_ni_syscall,
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[__NR_madvise] sys_madvise,
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[__NR_mincore] sys_mincore,
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[__NR_gettid] sys_gettid,
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[__NR_tkill] sys_tkill,
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[__NR_setxattr] sys_setxattr,
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[__NR_lsetxattr] sys_lsetxattr,
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[__NR_fsetxattr] sys_fsetxattr,
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[__NR_getxattr] sys_getxattr,
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[__NR_lgetxattr] sys_lgetxattr,
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[__NR_fgetxattr] sys_fgetxattr,
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[__NR_listxattr] sys_listxattr,
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[__NR_llistxattr] sys_llistxattr,
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[__NR_flistxattr] sys_flistxattr,
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[__NR_removexattr] sys_removexattr,
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[__NR_lremovexattr] sys_lremovexattr,
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[__NR_fremovexattr] sys_fremovexattr,
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[__NR_futex] sys_futex,
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[__NR_sched_setaffinity] sys_sched_setaffinity,
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[__NR_sched_getaffinity] sys_sched_getaffinity,
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[__NR_tuxcall] sys_ni_syscall,
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[226] sys_ni_syscall,
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[__NR_io_setup] sys_io_setup,
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[__NR_io_destroy] sys_io_destroy,
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[__NR_io_getevents] sys_io_getevents,
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[__NR_io_submit] sys_io_submit,
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[__NR_io_cancel] sys_io_cancel,
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[__NR_set_tid_address] sys_ni_syscall, /* sys_set_tid_address */
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[__NR_fadvise64] sys_fadvise64,
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[__NR_exit_group] sys_ni_syscall, /* sys_exit_group */
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[__NR_lookup_dcookie] sys_ni_syscall, /* sys_lookup_dcookie */
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[__NR_epoll_create] sys_epoll_create,
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[__NR_epoll_ctl] sys_epoll_ctl,
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[__NR_epoll_wait] sys_epoll_wait,
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[__NR_remap_file_pages] sys_remap_file_pages,
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[__NR_timer_create] sys_timer_create,
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[__NR_timer_settime] sys_timer_settime,
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[__NR_timer_gettime] sys_timer_gettime,
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[__NR_timer_getoverrun] sys_timer_getoverrun,
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[__NR_timer_delete] sys_timer_delete,
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[__NR_clock_settime] sys_clock_settime,
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[__NR_clock_gettime] sys_clock_gettime,
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[__NR_clock_getres] sys_clock_getres,
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[__NR_clock_nanosleep] sys_clock_nanosleep,
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[__NR_swapcontext] sys_ni_syscall, /* ppc64_swapcontext */
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[__NR_tgkill] sys_tgkill,
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[__NR_utimes] sys_utimes,
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[__NR_statfs64] sys_statfs64,
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[__NR_fstatfs64] sys_fstatfs64,
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[254] sys_ni_syscall,
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[__NR_rtas] ppc_rtas,
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[256] sys_ni_syscall,
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[257] sys_ni_syscall,
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[258] sys_ni_syscall,
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[__NR_mbind] sys_ni_syscall, /* sys_mbind */
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[__NR_get_mempolicy] sys_ni_syscall, /* sys_get_mempolicy */
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[__NR_set_mempolicy] sys_ni_syscall, /* sys_set_mempolicy */
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[__NR_mq_open] sys_ni_syscall, /* sys_mq_open */
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[__NR_mq_unlink] sys_ni_syscall, /* sys_mq_unlink */
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[__NR_mq_timedsend] sys_ni_syscall, /* sys_mq_timedsend */
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[__NR_mq_timedreceive] sys_ni_syscall, /* sys_mq_timedreceive */
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[__NR_mq_notify] sys_ni_syscall, /* sys_mq_notify */
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[__NR_mq_getsetattr] sys_ni_syscall, /* sys_mq_getsetattr */
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[__NR_kexec_load] sys_ni_syscall, /* sys_kexec_load */
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[__NR_add_key] sys_ni_syscall, /* sys_add_key */
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[__NR_request_key] sys_ni_syscall, /* sys_request_key */
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[__NR_keyctl] sys_ni_syscall, /* sys_keyctl */
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[__NR_waitid] sys_ni_syscall, /* sys_waitid */
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[__NR_ioprio_set] sys_ni_syscall, /* sys_ioprio_set */
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[__NR_ioprio_get] sys_ni_syscall, /* sys_ioprio_get */
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[__NR_inotify_init] sys_ni_syscall, /* sys_inotify_init */
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[__NR_inotify_add_watch] sys_ni_syscall, /* sys_inotify_add_watch */
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[__NR_inotify_rm_watch] sys_ni_syscall, /* sys_inotify_rm_watch */
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[__NR_spu_run] sys_ni_syscall, /* sys_spu_run */
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[__NR_spu_create] sys_ni_syscall, /* sys_spu_create */
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[__NR_pselect6] sys_ni_syscall, /* sys_pselect */
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[__NR_ppoll] sys_ni_syscall, /* sys_ppoll */
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[__NR_unshare] sys_unshare,
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};
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long spu_sys_callback(struct spu_syscall_block *s)
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{
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long (*syscall)(u64 a1, u64 a2, u64 a3, u64 a4, u64 a5, u64 a6);
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||||
|
||||
BUILD_BUG_ON(ARRAY_SIZE(spu_syscall_table) != __NR_syscalls);
|
||||
|
||||
syscall = spu_syscall_table[s->nr_ret];
|
||||
|
||||
if (s->nr_ret >= __NR_syscalls) {
|
||||
pr_debug("%s: invalid syscall #%ld", __FUNCTION__, s->nr_ret);
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
print_symbol(KERN_DEBUG "SPU-syscall %s:", (unsigned long)syscall);
|
||||
printk("syscall%ld(%lx, %lx, %lx, %lx, %lx, %lx)\n",
|
||||
s->nr_ret,
|
||||
s->parm[0], s->parm[1], s->parm[2],
|
||||
s->parm[3], s->parm[4], s->parm[5]);
|
||||
#endif
|
||||
|
||||
return syscall(s->parm[0], s->parm[1], s->parm[2],
|
||||
s->parm[3], s->parm[4], s->parm[5]);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(spu_sys_callback);
|
||||
|
|
@ -76,6 +76,90 @@ static inline int spu_reacquire_runnable(struct spu_context *ctx, u32 *npc,
|
|||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* SPU syscall restarting is tricky because we violate the basic
|
||||
* assumption that the signal handler is running on the interrupted
|
||||
* thread. Here instead, the handler runs on PowerPC user space code,
|
||||
* while the syscall was called from the SPU.
|
||||
* This means we can only do a very rough approximation of POSIX
|
||||
* signal semantics.
|
||||
*/
|
||||
int spu_handle_restartsys(struct spu_context *ctx, long *spu_ret,
|
||||
unsigned int *npc)
|
||||
{
|
||||
int ret;
|
||||
|
||||
switch (*spu_ret) {
|
||||
case -ERESTARTSYS:
|
||||
case -ERESTARTNOINTR:
|
||||
/*
|
||||
* Enter the regular syscall restarting for
|
||||
* sys_spu_run, then restart the SPU syscall
|
||||
* callback.
|
||||
*/
|
||||
*npc -= 8;
|
||||
ret = -ERESTARTSYS;
|
||||
break;
|
||||
case -ERESTARTNOHAND:
|
||||
case -ERESTART_RESTARTBLOCK:
|
||||
/*
|
||||
* Restart block is too hard for now, just return -EINTR
|
||||
* to the SPU.
|
||||
* ERESTARTNOHAND comes from sys_pause, we also return
|
||||
* -EINTR from there.
|
||||
* Assume that we need to be restarted ourselves though.
|
||||
*/
|
||||
*spu_ret = -EINTR;
|
||||
ret = -ERESTARTSYS;
|
||||
break;
|
||||
default:
|
||||
printk(KERN_WARNING "%s: unexpected return code %ld\n",
|
||||
__FUNCTION__, *spu_ret);
|
||||
ret = 0;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int spu_process_callback(struct spu_context *ctx)
|
||||
{
|
||||
struct spu_syscall_block s;
|
||||
u32 ls_pointer, npc;
|
||||
char *ls;
|
||||
long spu_ret;
|
||||
int ret;
|
||||
|
||||
/* get syscall block from local store */
|
||||
npc = ctx->ops->npc_read(ctx);
|
||||
ls = ctx->ops->get_ls(ctx);
|
||||
ls_pointer = *(u32*)(ls + npc);
|
||||
if (ls_pointer > (LS_SIZE - sizeof(s)))
|
||||
return -EFAULT;
|
||||
memcpy(&s, ls + ls_pointer, sizeof (s));
|
||||
|
||||
/* do actual syscall without pinning the spu */
|
||||
ret = 0;
|
||||
spu_ret = -ENOSYS;
|
||||
npc += 4;
|
||||
|
||||
if (s.nr_ret < __NR_syscalls) {
|
||||
spu_release(ctx);
|
||||
/* do actual system call from here */
|
||||
spu_ret = spu_sys_callback(&s);
|
||||
if (spu_ret <= -ERESTARTSYS) {
|
||||
ret = spu_handle_restartsys(ctx, &spu_ret, &npc);
|
||||
}
|
||||
spu_acquire(ctx);
|
||||
if (ret == -ERESTARTSYS)
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* write result, jump over indirect pointer */
|
||||
memcpy(ls + ls_pointer, &spu_ret, sizeof (spu_ret));
|
||||
ctx->ops->npc_write(ctx, npc);
|
||||
ctx->ops->runcntl_write(ctx, SPU_RUNCNTL_RUNNABLE);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static inline int spu_process_events(struct spu_context *ctx)
|
||||
{
|
||||
struct spu *spu = ctx->spu;
|
||||
|
|
@ -107,6 +191,13 @@ long spufs_run_spu(struct file *file, struct spu_context *ctx,
|
|||
ret = spufs_wait(ctx->stop_wq, spu_stopped(ctx, status));
|
||||
if (unlikely(ret))
|
||||
break;
|
||||
if ((*status & SPU_STATUS_STOPPED_BY_STOP) &&
|
||||
(*status >> SPU_STOP_STATUS_SHIFT == 0x2104)) {
|
||||
ret = spu_process_callback(ctx);
|
||||
if (ret)
|
||||
break;
|
||||
*status &= ~SPU_STATUS_STOPPED_BY_STOP;
|
||||
}
|
||||
if (unlikely(ctx->state != SPU_STATE_RUNNABLE)) {
|
||||
ret = spu_reacquire_runnable(ctx, npc, status);
|
||||
if (ret)
|
||||
|
|
|
|||
|
|
@ -149,6 +149,14 @@ int spu_irq_class_0_bottom(struct spu *spu);
|
|||
int spu_irq_class_1_bottom(struct spu *spu);
|
||||
void spu_irq_setaffinity(struct spu *spu, int cpu);
|
||||
|
||||
/* system callbacks from the SPU */
|
||||
struct spu_syscall_block {
|
||||
u64 nr_ret;
|
||||
u64 parm[6];
|
||||
};
|
||||
extern long spu_sys_callback(struct spu_syscall_block *s);
|
||||
|
||||
/* syscalls implemented in spufs */
|
||||
extern struct spufs_calls {
|
||||
asmlinkage long (*create_thread)(const char __user *name,
|
||||
unsigned int flags, mode_t mode);
|
||||
|
|
@ -399,7 +407,6 @@ struct spu_priv1 {
|
|||
#define SPU_GET_REVISION_BITS(vr) (vr & SPU_REVISION_BITS)
|
||||
u8 pad_0x28_0x100[0x100 - 0x28]; /* 0x28 */
|
||||
|
||||
|
||||
/* Interrupt Area */
|
||||
u64 int_mask_RW[3]; /* 0x100 */
|
||||
#define CLASS0_ENABLE_DMA_ALIGNMENT_INTR 0x1L
|
||||
|
|
|
|||
Loading…
Reference in New Issue