diff options
Diffstat (limited to 'drivers/misc/cxl/api.c')
| -rw-r--r-- | drivers/misc/cxl/api.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c index 807582335a98..6d228ccd884d 100644 --- a/drivers/misc/cxl/api.c +++ b/drivers/misc/cxl/api.c @@ -183,6 +183,7 @@ int cxl_start_context(struct cxl_context *ctx, u64 wed, ctx->pid = get_task_pid(task, PIDTYPE_PID); ctx->glpid = get_task_pid(task->group_leader, PIDTYPE_PID); kernel = false; + ctx->real_mode = false; } cxl_ctx_get(); @@ -219,6 +220,24 @@ void cxl_set_master(struct cxl_context *ctx) } EXPORT_SYMBOL_GPL(cxl_set_master); +int cxl_set_translation_mode(struct cxl_context *ctx, bool real_mode) +{ + if (ctx->status == STARTED) { + /* + * We could potentially update the PE and issue an update LLCMD + * to support this, but it doesn't seem to have a good use case + * since it's trivial to just create a second kernel context + * with different translation modes, so until someone convinces + * me otherwise: + */ + return -EBUSY; + } + + ctx->real_mode = real_mode; + return 0; +} +EXPORT_SYMBOL_GPL(cxl_set_translation_mode); + /* wrappers around afu_* file ops which are EXPORTED */ int cxl_fd_open(struct inode *inode, struct file *file) { |