Am Freitag, dem 16.09.2022 um 17:12 +0200 schrieb Lucas Stach:
> Allows to easily track if several fd are pointing to the same
> execution context due to being dup'ed.
>
I would appreciate it if someone could review path 2 and 3 of this
series. I would like to include it in my next upstream PR.
Regards,
Lucas
> Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/etnaviv/etnaviv_drv.c | 3 +++
> drivers/gpu/drm/etnaviv/etnaviv_drv.h | 1 +
> 2 files changed, 4 insertions(+)
>
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> index 1d2b4fb4bcf8..b69edb40ae2a 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> @@ -49,6 +49,7 @@ static void load_gpu(struct drm_device *dev)
> static int etnaviv_open(struct drm_device *dev, struct drm_file *file)
> {
> struct etnaviv_drm_private *priv = dev->dev_private;
> + static atomic_t ident = ATOMIC_INIT(0);
> struct etnaviv_file_private *ctx;
> int ret, i;
>
> @@ -56,6 +57,8 @@ static int etnaviv_open(struct drm_device *dev, struct drm_file *file)
> if (!ctx)
> return -ENOMEM;
>
> + ctx->id = atomic_inc_return(&ident);
> +
> ctx->mmu = etnaviv_iommu_context_init(priv->mmu_global,
> priv->cmdbuf_suballoc);
> if (!ctx->mmu) {
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
> index f32f4771dada..851b4b4ef146 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
> @@ -27,6 +27,7 @@ struct etnaviv_iommu_global;
> #define ETNAVIV_SOFTPIN_START_ADDRESS SZ_4M /* must be >= SUBALLOC_SIZE */
>
> struct etnaviv_file_private {
> + int id;
> struct etnaviv_iommu_context *mmu;
> struct drm_sched_entity sched_entity[ETNA_MAX_PIPES];
> };
