diff options
| author | Christian Gmeiner <christian.gmeiner@gmail.com> | 2017-09-24 15:15:28 +0200 |
|---|---|---|
| committer | Lucas Stach <l.stach@pengutronix.de> | 2017-10-10 11:45:45 +0200 |
| commit | 357713ce9bc86c1ae7ba804731d8db542944463c (patch) | |
| tree | 6a8a0edd3fc47cb62c172bdf90d04431d880dd81 /drivers/gpu/drm/etnaviv/etnaviv_drv.h | |
| parent | 249300c740e5bf2b48425e6f0cccc63964a35892 (diff) | |
drm/etnaviv: add 'sync point' support
In order to support performance counters in a sane way we need to provide
a method to sync the GPU with the CPU. The GPU can process multpile command
buffers/events per irq. With the help of a 'sync point' we can trigger an event
and stop the GPU/FE immediately. When the CPU is done with is processing it
simply needs to restart the FE and the GPU will process the command stream.
Changes from v1 -> v2:
- process sync point with a work item to keep irq as fast as possible
Changes from v4 -> v5:
- renamed pmrs_* to sync_point_*
- call event_free(..) in sync_point_worker(..)
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Diffstat (limited to 'drivers/gpu/drm/etnaviv/etnaviv_drv.h')
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_drv.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h index d157d9379e68..203613ae24dc 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h @@ -100,6 +100,7 @@ int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file, u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu); u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe_addr); void etnaviv_buffer_end(struct etnaviv_gpu *gpu); +void etnaviv_sync_point_queue(struct etnaviv_gpu *gpu, unsigned int event); void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event, struct etnaviv_cmdbuf *cmdbuf); void etnaviv_validate_init(void); |