From: Lucas Stach <l.stach@pengutronix.de>
Date: Fri, 20 Oct 2017 17:46:55 +0200
Subject: drm/etnaviv: short-circuit perfmon ioctls
Git-commit: 330b52bd9bba1d66028772dfe08c053a34c5069a
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
The feature implementation isn't stable yet. Reject any attempt to use
the IOCTLs for now. This keeps most of the code in place, so we can stabilize
it in-tree, but keeps userspace from using the feature for now.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/etnaviv/etnaviv_drv.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
@@ -459,6 +459,9 @@ static int etnaviv_ioctl_pm_query_dom(st
struct drm_etnaviv_pm_domain *args = data;
struct etnaviv_gpu *gpu;
+ /* reject as long as the feature isn't stable */
+ return -EINVAL;
+
if (args->pipe >= ETNA_MAX_PIPES)
return -EINVAL;
@@ -476,6 +479,9 @@ static int etnaviv_ioctl_pm_query_sig(st
struct drm_etnaviv_pm_signal *args = data;
struct etnaviv_gpu *gpu;
+ /* reject as long as the feature isn't stable */
+ return -EINVAL;
+
if (args->pipe >= ETNA_MAX_PIPES)
return -EINVAL;