From 46df52cd4395b62d05b9ac99a7f320f577b5cff5 Mon Sep 17 00:00:00 2001 From: Christian Gmeiner Date: Sun, 24 Sep 2017 15:15:25 +0200 Subject: 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 --- drivers/gpu/drm/etnaviv/etnaviv_perfmon.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'drivers/gpu/drm/etnaviv/etnaviv_perfmon.c') diff --git a/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c index 08ef01c2a0ef..09fbd33764e8 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; +} -- cgit v1.2.3