summaryrefslogtreecommitdiff
path: root/include/linux/platform-feature.h
diff options
context:
space:
mode:
authorAndreas Gruenbacher <agruenba@redhat.com>2022-08-05 18:37:03 +0200
committerAndreas Gruenbacher <agruenba@redhat.com>2022-08-05 18:37:03 +0200
commit446279168e030fd0ed68e2bba336bef8bb3da352 (patch)
tree0944d4dc64b07f74a6cf73d2ce803a789f8d786d /include/linux/platform-feature.h
parent44dab005fd4298c209ea32ffda6131cad4358d21 (diff)
parent6feaec81477af0390a41470cbd6b353f68dd853c (diff)
Merge part of branch 'for-next.instantiate' into for-next
Diffstat (limited to 'include/linux/platform-feature.h')
-rw-r--r--include/linux/platform-feature.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/platform-feature.h b/include/linux/platform-feature.h
new file mode 100644
index 000000000000..b2f48be999fa
--- /dev/null
+++ b/include/linux/platform-feature.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _PLATFORM_FEATURE_H
+#define _PLATFORM_FEATURE_H
+
+#include <linux/bitops.h>
+#include <asm/platform-feature.h>
+
+/* The platform features are starting with the architecture specific ones. */
+
+/* Used to enable platform specific DMA handling for virtio devices. */
+#define PLATFORM_VIRTIO_RESTRICTED_MEM_ACCESS (0 + PLATFORM_ARCH_FEAT_N)
+
+#define PLATFORM_FEAT_N (1 + PLATFORM_ARCH_FEAT_N)
+
+void platform_set(unsigned int feature);
+void platform_clear(unsigned int feature);
+bool platform_has(unsigned int feature);
+
+#endif /* _PLATFORM_FEATURE_H */