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path: root/drivers/gpu/drm/nouveau/include/nvif/object.h
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Diffstat (limited to 'drivers/gpu/drm/nouveau/include/nvif/object.h')
-rw-r--r--drivers/gpu/drm/nouveau/include/nvif/object.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvif/object.h b/drivers/gpu/drm/nouveau/include/nvif/object.h
index 8d815967767f..9e58b305b020 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/object.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/object.h
@@ -66,6 +66,35 @@ void nvif_object_unmap(struct nvif_object *);
#define nvif_mthd(a,b,c,d) nvif_object_mthd((a), (b), (c), (d))
+struct nvif_mclass {
+ s32 oclass;
+ int version;
+};
+
+#define nvif_mclass(o,m) ({ \
+ struct nvif_object *object = (o); \
+ struct nvif_sclass *sclass; \
+ const typeof(m[0]) *mclass = (m); \
+ int ret = -ENODEV; \
+ int cnt, i, j; \
+ \
+ cnt = nvif_object_sclass_get(object, &sclass); \
+ if (cnt >= 0) { \
+ for (i = 0; ret < 0 && mclass[i].oclass; i++) { \
+ for (j = 0; j < cnt; j++) { \
+ if (mclass[i].oclass == sclass[j].oclass && \
+ mclass[i].version >= sclass[j].minver && \
+ mclass[i].version <= sclass[j].maxver) { \
+ ret = i; \
+ break; \
+ } \
+ } \
+ } \
+ nvif_object_sclass_put(&sclass); \
+ } \
+ ret; \
+})
+
/*XXX*/
#include <core/object.h>
#define nvxx_object(a) ({ \