Add some documentation and remove unused declaration.

Author: abergeron

pygpu/gpuarray.pyx

@@ -789,7 +789,7 @@ def from_gpudata(size_t data, offset, dtype, shape, GpuContext context=None,
     :type shape: iterable of ints
     :param context: context of the gpudata
     :type context: GpuContext
-    :param strides: strides for the results
+    :param strides: strides for the results (C contiguous if not specified)
     :type strides: iterable of ints
     :param writable: is the data writable?
     :type writeable: bool
@@ -1433,6 +1433,11 @@ cuda_open_ipc_handle = <gpudata *(*)(gpucontext *, GpuArrayIpcMemHandle *, size_
 def open_ipc_handle(GpuContext c, bytes hpy, size_t l):
     """
     Open an IPC handle to get a new GpuArray from it.
+
+    :param c: context
+    :param hpy: binary handle data received
+    :param l: size of the referred memory block
+
     """
     cdef char *b
     cdef GpuArrayIpcMemHandle h

src/private_cuda.h

@@ -123,7 +123,6 @@ struct _gpudata {
 
 GPUARRAY_LOCAL gpudata *cuda_make_buf(cuda_context *c, CUdeviceptr p,
                                       size_t sz);
-GPUARRAY_LOCAL CUdeviceptr cuda_get_ptr(gpudata *g);
 GPUARRAY_LOCAL size_t cuda_get_sz(gpudata *g);
 GPUARRAY_LOCAL int cuda_wait(gpudata *, int);
 GPUARRAY_LOCAL int cuda_record(gpudata *, int);