From: Lucas Stach Date: Mon, 22 Jan 2018 12:35:14 +0100 Subject: drm/etnaviv: add security handling mode enum Git-commit: 007ad58dd3cd77d97b293020989298b09320fe53 Patch-mainline: v4.17-rc1 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 With the introduction of GPU security we have 3 different modes of GPU operation: - GPU core doesn't have security features -> no handling required - the security related states are handled by the kernel driver - the security related states are handled by a TrustZone application Add a enum to differentiate between the different operation modes. Signed-off-by: Lucas Stach Acked-by: Petr Tesarik --- drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 7 +++++++ 1 file changed, 7 insertions(+) --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h @@ -84,6 +84,12 @@ struct etnaviv_chip_identity { u8 varyings_count; }; +enum etnaviv_sec_mode { + ETNA_SEC_NONE = 0, + ETNA_SEC_KERNEL, + ETNA_SEC_TZ +}; + struct etnaviv_event { struct dma_fence *fence; struct etnaviv_gem_submit *submit; @@ -102,6 +108,7 @@ struct etnaviv_gpu { struct device *dev; struct mutex lock; struct etnaviv_chip_identity identity; + enum etnaviv_sec_mode sec_mode; struct etnaviv_file_private *lastctx; struct workqueue_struct *wq; struct drm_gpu_scheduler sched;