Check if the selected domain and signal combination exists.
Signed-off-by: Christian Gmeiner christian.gmeiner@gmail.com --- drivers/gpu/drm/etnaviv/etnaviv_perfmon.c | 15 +++++++++++++++ drivers/gpu/drm/etnaviv/etnaviv_perfmon.h | 2 ++ 2 files changed, 17 insertions(+)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c index 9c6f284..b8dc5fa 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c @@ -79,3 +79,18 @@ int etnaviv_pm_query_sig(struct etnaviv_gpu *gpu,
return 0; } + +int etnaviv_pm_req_validate(const struct drm_etnaviv_gem_submit_pmr *r) +{ + const struct etnaviv_pm_domain *dom; + + if (r->domain >= ARRAY_SIZE(doms)) + return -EINVAL; + + dom = &doms[r->domain]; + + if (r->signal > dom->nr_signals) + return -EINVAL; + + return 0; +} diff --git a/drivers/gpu/drm/etnaviv/etnaviv_perfmon.h b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.h index 4b2b518..f20b69c 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_perfmon.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.h @@ -40,4 +40,6 @@ int etnaviv_pm_query_dom(struct etnaviv_gpu *gpu, int etnaviv_pm_query_sig(struct etnaviv_gpu *gpu, struct drm_etnaviv_pm_signal *signal);
+int etnaviv_pm_req_validate(const struct drm_etnaviv_gem_submit_pmr *r); + #endif /* __ETNAVIV_PERFMON_H__ */