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drm/nouveau/nvif: helper to match against supported class list

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2016-11-04 17:20:35 +10:00
parent f3a8b6645d
commit a3f8a41fd2
1 changed files with 29 additions and 0 deletions
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29
drivers/gpu/drm/nouveau/include/nvif/object.h
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@ -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) ({ \