1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Tegra host1x Channel 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (c) 2010-2013, NVIDIA Corporation. 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #ifndef __HOST1X_CHANNEL_H 9*4882a593Smuzhiyun #define __HOST1X_CHANNEL_H 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #include <linux/io.h> 12*4882a593Smuzhiyun #include <linux/kref.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun #include "cdma.h" 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun struct host1x; 17*4882a593Smuzhiyun struct host1x_channel; 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun struct host1x_channel_list { 20*4882a593Smuzhiyun struct host1x_channel *channels; 21*4882a593Smuzhiyun unsigned long *allocated_channels; 22*4882a593Smuzhiyun }; 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun struct host1x_channel { 25*4882a593Smuzhiyun struct kref refcount; 26*4882a593Smuzhiyun unsigned int id; 27*4882a593Smuzhiyun struct mutex submitlock; 28*4882a593Smuzhiyun void __iomem *regs; 29*4882a593Smuzhiyun struct host1x_client *client; 30*4882a593Smuzhiyun struct device *dev; 31*4882a593Smuzhiyun struct host1x_cdma cdma; 32*4882a593Smuzhiyun }; 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun /* channel list operations */ 35*4882a593Smuzhiyun int host1x_channel_list_init(struct host1x_channel_list *chlist, 36*4882a593Smuzhiyun unsigned int num_channels); 37*4882a593Smuzhiyun void host1x_channel_list_free(struct host1x_channel_list *chlist); 38*4882a593Smuzhiyun struct host1x_channel *host1x_channel_get_index(struct host1x *host, 39*4882a593Smuzhiyun unsigned int index); 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun #endif 42