drm/radeon/kms: prevent parallel AtomBIOS calls
This just adds a mutex around the atombios table execution
so we don't call it from two contexts at once.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/atom.h b/drivers/gpu/drm/radeon/atom.h
index 6671848..47fd943 100644
--- a/drivers/gpu/drm/radeon/atom.h
+++ b/drivers/gpu/drm/radeon/atom.h
@@ -120,6 +120,7 @@
struct atom_context {
struct card_info *card;
+ struct mutex mutex;
void *bios;
uint32_t cmd_table, data_table;
uint16_t *iio;