Revert "cxl: Add kernel API to allow a context to operate with relocate disabled"

Remove abandonned capi support for the Mellanox CX4.
The symbol 'cxl_set_translation_mode' is never called, so
ctx->real_mode is always false.

This reverts commit 7a0d85d313c2066712e530e668bc02bb741a685c.

Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

1 files changed, 0 insertions, 19 deletions

diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c
index 753b1a698fc4..21d620e29fea 100644
--- a/drivers/misc/cxl/api.c
+++ b/drivers/misc/cxl/api.c
@@ -324,7 +324,6 @@ int cxl_start_context(struct cxl_context *ctx, u64 wed,
         if (task) {
                 ctx->pid = get_task_pid(task, PIDTYPE_PID);
                 kernel = false;
-                ctx->real_mode = false;
 
                 /* acquire a reference to the task's mm */
                 ctx->mm = get_task_mm(current);
@@ -388,24 +387,6 @@ 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)
 {