Am 18.07.2017 um 02:48 schrieb Dave Airlie:
From: Dave Airlie <airlied@xxxxxxxxxx>
This just sends chunks to the kernel API for a single command
stream.
This should provide a more future proof and extensible API
for command submission.
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
---
amdgpu/amdgpu.h | 21 +++++++++++++++++++++
amdgpu/amdgpu_cs.c | 30 ++++++++++++++++++++++++++++++
2 files changed, 51 insertions(+)
diff --git a/amdgpu/amdgpu.h b/amdgpu/amdgpu.h
index 183f974..b4a070d 100644
--- a/amdgpu/amdgpu.h
+++ b/amdgpu/amdgpu.h
@@ -1382,6 +1382,27 @@ int amdgpu_cs_import_syncobj(amdgpu_device_handle dev,
int shared_fd,
uint32_t *syncobj);
+/**
+ * Submit raw command submission to kernel
+ *
+ * \param dev - \c [in] device handle
+ * \param context - \c [in] context handle for context id
+ * \param bo_list_handle - \c [in] request bo list handle (0 for none)
+ * \param num_chunks - \c [in] number of CS chunks to submit
+ * \param chunks - \c [in] array of CS chunks
+ * \param seq_no - \c [out] output sequence number for submission.
+ *
+ * \return 0 on success\n
+ * <0 - Negative POSIX Error code
+ *
+*/
+struct drm_amdgpu_cs_chunk;
+int amdgpu_cs_submit_raw(amdgpu_device_handle dev,
+ amdgpu_context_handle context,
+ uint32_t bo_list_handle,
Why is bo_list_handle an uint32_t here?
Apart from that it looks good to me,
Christian.
+ int num_chunks,
+ struct drm_amdgpu_cs_chunk *chunks,
+ uint64_t *seq_no);
#ifdef __cplusplus
}
#endif
diff --git a/amdgpu/amdgpu_cs.c b/amdgpu/amdgpu_cs.c
index 722fd75..3c32070 100644
--- a/amdgpu/amdgpu_cs.c
+++ b/amdgpu/amdgpu_cs.c
@@ -634,3 +634,33 @@ int amdgpu_cs_import_syncobj(amdgpu_device_handle dev,
return drmSyncobjFDToHandle(dev->fd, shared_fd, handle);
}
+
+int amdgpu_cs_submit_raw(amdgpu_device_handle dev,
+ amdgpu_context_handle context,
+ uint32_t bo_list_handle,
+ int num_chunks,
+ struct drm_amdgpu_cs_chunk *chunks,
+ uint64_t *seq_no)
+{
+ union drm_amdgpu_cs cs = {0};
+ uint64_t *chunk_array;
+ int i, r;
+ if (num_chunks == 0)
+ return -EINVAL;
+
+ chunk_array = alloca(sizeof(uint64_t) * num_chunks);
+ for (i = 0; i < num_chunks; i++)
+ chunk_array[i] = (uint64_t)(uintptr_t)&chunks[i];
+ cs.in.chunks = (uint64_t)(uintptr_t)chunk_array;
+ cs.in.ctx_id = context->id;
+ cs.in.bo_list_handle = bo_list_handle;
+ cs.in.num_chunks = num_chunks;
+ r = drmCommandWriteRead(dev->fd, DRM_AMDGPU_CS,
+ &cs, sizeof(cs));
+ if (r)
+ return r;
+
+ if (seq_no)
+ *seq_no = cs.out.handle;
+ return 0;
+}
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