drm/nouveau/nvif: helper to match against supported class list (a3f8a41f) · Commits · github.com / kvm-riscv / linux

drivers/gpu/drm/nouveau/include/nvif/object.h

+29 −0

Original line number	Diff line number	Diff line
		@@ -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) ({ \