From: Christian Gmeiner Date: Sun, 24 Sep 2017 13:15:25 +0000 (+0200) Subject: drm/etnaviv: add performance monitor request validation X-Git-Tag: v4.19~2077^2~49^2~20 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=46df52cd4395b62d05b9ac99a7f320f577b5cff5;p=platform%2Fkernel%2Flinux-rpi.git drm/etnaviv: add performance monitor request validation Check if the selected domain and signal combination exists. Changes from v4 to v5 - add exec_state parameter Signed-off-by: Christian Gmeiner Signed-off-by: Lucas Stach --- diff --git a/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c index 08ef01c..09fbd33 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c @@ -111,3 +111,20 @@ int etnaviv_pm_query_sig(struct etnaviv_gpu *gpu, return 0; } + +int etnaviv_pm_req_validate(const struct drm_etnaviv_gem_submit_pmr *r, + u32 exec_state) +{ + const struct etnaviv_pm_domain_meta *meta = &doms_meta[exec_state]; + const struct etnaviv_pm_domain *dom; + + if (r->domain >= meta->nr_domains) + return -EINVAL; + + dom = meta->domains + 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..9fcd1fb 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_perfmon.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.h @@ -40,4 +40,7 @@ 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, + u32 exec_state); + #endif /* __ETNAVIV_PERFMON_H__ */