[PATCH libdrm v2 1/3] etnaviv: add etna_pipe_wait_ns(..)

[Christian Gmeiner]

We need to pass through a timeout parameter to implement
pipe->fence_finish() properly. The new fxn accepts a timeout
in nanoseconds.

Signed-off-by: Christian Gmeiner <christian.gmeiner at gmail.com>
---
 etnaviv/etnaviv-symbol-check |  1 +
 etnaviv/etnaviv_drmif.h      |  1 +
 etnaviv/etnaviv_pipe.c       | 24 ++++++++++++++++++++++++
 etnaviv/etnaviv_priv.h       |  9 +++++++++
 4 files changed, 35 insertions(+)

diff --git a/etnaviv/etnaviv-symbol-check b/etnaviv/etnaviv-symbol-check
index 72f2bc5..22afd16 100755
--- a/etnaviv/etnaviv-symbol-check
+++ b/etnaviv/etnaviv-symbol-check
@@ -21,6 +21,7 @@ etna_gpu_get_param
 etna_pipe_new
 etna_pipe_del
 etna_pipe_wait
+etna_pipe_wait_ns
 etna_bo_new
 etna_bo_from_handle
 etna_bo_from_name
diff --git a/etnaviv/etnaviv_drmif.h b/etnaviv/etnaviv_drmif.h
index fe9d5db..8119baa 100644
--- a/etnaviv/etnaviv_drmif.h
+++ b/etnaviv/etnaviv_drmif.h
@@ -104,6 +104,7 @@ int etna_gpu_get_param(struct etna_gpu *gpu, enum etna_param_id param,
 struct etna_pipe *etna_pipe_new(struct etna_gpu *gpu, enum etna_pipe_id id);
 void etna_pipe_del(struct etna_pipe *pipe);
 int etna_pipe_wait(struct etna_pipe *pipe, uint32_t timestamp, uint32_t ms);
+int etna_pipe_wait_ns(struct etna_pipe *pipe, uint32_t timestamp, uint64_t ns);
 
 
 /* buffer-object functions:
diff --git a/etnaviv/etnaviv_pipe.c b/etnaviv/etnaviv_pipe.c
index 402b71d..f2e417f 100644
--- a/etnaviv/etnaviv_pipe.c
+++ b/etnaviv/etnaviv_pipe.c
@@ -54,6 +54,30 @@ int etna_pipe_wait(struct etna_pipe *pipe, uint32_t timestamp, uint32_t ms)
 	return 0;
 }
 
+int etna_pipe_wait_ns(struct etna_pipe *pipe, uint32_t timestamp, uint64_t ns)
+{
+	struct etna_device *dev = pipe->gpu->dev;
+	int ret;
+
+	struct drm_etnaviv_wait_fence req = {
+		.pipe = pipe->gpu->core,
+		.fence = timestamp,
+	};
+
+	if (ns == 0)
+		req.flags |= ETNA_WAIT_NONBLOCK;
+
+	get_abs_timeout_ns(&req.timeout, ns);
+
+	ret = drmCommandWrite(dev->fd, DRM_ETNAVIV_WAIT_FENCE, &req, sizeof(req));
+	if (ret) {
+		ERROR_MSG("wait-fence failed! %d (%s)", ret, strerror(errno));
+		return ret;
+	}
+
+	return 0;
+}
+
 void etna_pipe_del(struct etna_pipe *pipe)
 {
 	free(pipe);
diff --git a/etnaviv/etnaviv_priv.h b/etnaviv/etnaviv_priv.h
index eb62ed3..30cc1bd 100644
--- a/etnaviv/etnaviv_priv.h
+++ b/etnaviv/etnaviv_priv.h
@@ -198,4 +198,13 @@ static inline void get_abs_timeout(struct drm_etnaviv_timespec *tv, uint32_t ms)
 	tv->tv_nsec = t.tv_nsec + ((ms - (s * 1000)) * 1000000);
 }
 
+static inline void get_abs_timeout_ns(struct drm_etnaviv_timespec *tv, uint64_t ns)
+{
+	struct timespec t;
+	uint32_t s = ns / 1000000000;
+	clock_gettime(CLOCK_MONOTONIC, &t);
+	tv->tv_sec = t.tv_sec + s;
+	tv->tv_nsec = t.tv_nsec + ns - (s * 1000000000);
+}
+
 #endif /* ETNAVIV_PRIV_H_ */
-- 
2.7.4