2 * Copyright (C) 2012 ROCKCHIP, Inc.
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4 * This software is licensed under the terms of the GNU General Public
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5 * License version 2, as published by the Free Software Foundation, and
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6 * may be copied, distributed, and modified under those terms.
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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15 #include <linux/kernel.h>
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16 #include <linux/init.h>
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17 #include <linux/module.h>
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18 #include <linux/platform_device.h>
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19 #include <linux/sched.h>
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20 #include <linux/mutex.h>
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21 #include <linux/err.h>
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22 #include <linux/clk.h>
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23 #include <asm/delay.h>
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24 #include <linux/dma-mapping.h>
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25 #include <linux/delay.h>
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27 #include <linux/irq.h>
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28 #include <linux/interrupt.h>
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29 #include <mach/io.h>
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30 #include <mach/irqs.h>
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31 #include <linux/fs.h>
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32 #include <asm/uaccess.h>
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33 #include <linux/firmware.h>
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34 #include <linux/miscdevice.h>
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35 #include <linux/poll.h>
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36 #include <linux/delay.h>
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37 #include <linux/wait.h>
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38 #include <linux/syscalls.h>
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39 #include <linux/timer.h>
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40 #include <linux/time.h>
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41 #include <asm/cacheflush.h>
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42 #include <linux/compiler.h>
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43 #include <linux/slab.h>
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44 #include <linux/fb.h>
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48 #include "rga_reg_info.h"
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49 #include "rga_mmu_info.h"
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50 #include "RGA_API.h"
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53 #define RGA_TEST_TIME 0
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54 #define RGA_TEST_FLUSH_TIME 0
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55 #define RGA_INFO_BUS_ERROR 1
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57 #define PRE_SCALE_BUF_SIZE 2048*1024*4
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59 #define RGA_POWER_OFF_DELAY 4*HZ /* 4s */
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60 #define RGA_TIMEOUT_DELAY 2*HZ /* 2s */
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62 #define RGA_MAJOR 255
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64 #define RK30_RGA_PHYS 0x10114000
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65 #define RK30_RGA_SIZE SZ_8K
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66 #define RGA_RESET_TIMEOUT 1000
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68 /* Driver information */
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69 #define DRIVER_DESC "RGA Device Driver"
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70 #define DRIVER_NAME "rga"
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77 struct rga_drvdata {
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78 struct miscdevice miscdev;
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83 struct delayed_work power_off_work;
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84 void (*rga_irq_callback)(int rga_retval); //callback function used by aync call
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88 static struct rga_drvdata *drvdata = NULL;
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89 rga_service_info rga_service;
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91 static struct clk *aclk_rga;
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92 static struct clk *hclk_rga;
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95 static int rga_blit_async(rga_session *session, struct rga_req *req);
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96 static void rga_del_running_list(void);
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97 static void rga_del_running_list_timeout(void);
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98 static void rga_try_set_reg(uint32_t num);
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102 #define RGA_DEBUG 1
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104 #define DBG(format, args...) printk(KERN_DEBUG "%s: " format, DRIVER_NAME, ## args)
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105 #define ERR(format, args...) printk(KERN_ERR "%s: " format, DRIVER_NAME, ## args)
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106 #define WARNING(format, args...) printk(KERN_WARN "%s: " format, DRIVER_NAME, ## args)
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107 #define INFO(format, args...) printk(KERN_INFO "%s: " format, DRIVER_NAME, ## args)
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109 #define DBG(format, args...)
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110 #define ERR(format, args...)
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111 #define WARNING(format, args...)
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112 #define INFO(format, args...)
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116 static inline void rga_write(u32 b, u32 r)
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118 __raw_writel(b, drvdata->rga_base + r);
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121 static inline u32 rga_read(u32 r)
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123 return __raw_readl(drvdata->rga_base + r);
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126 static void rga_soft_reset(void)
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131 rga_write(1, RGA_SYS_CTRL); //RGA_SYS_CTRL
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133 for(i = 0; i < RGA_RESET_TIMEOUT; i++)
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135 reg = rga_read(RGA_SYS_CTRL) & 1; //RGA_SYS_CTRL
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143 if(i == RGA_RESET_TIMEOUT)
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144 ERR("soft reset timeout.\n");
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147 static void rga_dump(void)
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151 struct rga_reg *reg, *reg_tmp;
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152 rga_session *session, *session_tmp;
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153 struct list_head *next;
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155 running = atomic_read(&rga_service.total_running);
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156 printk("rga total_running %d\n", running);
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160 /* Dump waiting list info */
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161 if (!list_empty(&rga_service.waiting))
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163 next = &rga_service.waiting;
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165 printk("rga_service dump waiting list\n");
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169 reg = list_entry(next->next, struct rga_reg, status_link);
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170 running = atomic_read(®->session->task_running);
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171 num_done = atomic_read(®->session->num_done);
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172 printk("rga session pid %d, done %d, running %d\n", reg->session->pid, num_done, running);
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175 while(!list_empty(next));
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178 /* Dump running list info */
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179 if (!list_empty(&rga_service.running))
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181 printk("rga_service dump running list\n");
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183 next = &rga_service.running;
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186 reg = list_entry(next->next, struct rga_reg, status_link);
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187 running = atomic_read(®->session->task_running);
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188 num_done = atomic_read(®->session->num_done);
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189 printk("rga session pid %d, done %d, running %d:\n", reg->session->pid, num_done, running);
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192 while(!list_empty(next));
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196 list_for_each_entry_safe(session, session_tmp, &rga_service.session, list_session)
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198 printk("session pid %d:\n", session->pid);
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199 running = atomic_read(&session->task_running);
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200 printk("task_running %d\n", running);
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201 list_for_each_entry_safe(reg, reg_tmp, &session->waiting, session_link)
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203 printk("waiting register set 0x%.8x\n", (unsigned int)reg);
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205 list_for_each_entry_safe(reg, reg_tmp, &session->running, session_link)
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207 printk("running register set 0x%.8x\n", (unsigned int)reg);
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213 static void rga_power_on(void)
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215 //printk("rga_power_on\n");
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216 //cancel_delayed_work_sync(&drvdata->power_off_work);
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217 if (rga_service.enable)
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220 spin_lock_bh(&rga_service.lock_power);
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221 clk_enable(aclk_rga);
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222 clk_enable(hclk_rga);
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223 rga_service.enable = true;
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224 spin_unlock_bh(&rga_service.lock_power);
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228 static void rga_power_off(void)
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232 spin_lock_bh(&rga_service.lock_power);
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233 if(!rga_service.enable)
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235 spin_unlock_bh(&rga_service.lock_power);
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239 rga_service.enable = false;
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241 printk("rga_power_off\n");
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243 total_running = atomic_read(&rga_service.total_running);
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244 if (total_running) {
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245 pr_alert("power off when %d task running!!\n", total_running);
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247 pr_alert("delay 50 ms for running task\n");
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251 clk_disable(aclk_rga);
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252 clk_disable(hclk_rga);
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253 spin_unlock_bh(&rga_service.lock_power);
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257 static int rga_flush(rga_session *session, unsigned long arg)
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262 #if RGA_TEST_FLUSH_TIME
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265 start = ktime_get();
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268 ret_timeout = wait_event_interruptible_timeout(session->wait, atomic_read(&session->done), RGA_TIMEOUT_DELAY);
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270 if (unlikely(ret_timeout < 0)) {
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271 pr_err("flush pid %d wait task ret %d\n", session->pid, ret);
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272 rga_del_running_list();
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274 } else if (0 == ret_timeout) {
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275 pr_err("flush pid %d wait %d task done timeout\n", session->pid, atomic_read(&session->task_running));
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276 printk("bus = %.8x\n", rga_read(RGA_INT));
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277 rga_del_running_list_timeout();
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278 rga_try_set_reg(1);
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282 #if RGA_TEST_FLUSH_TIME
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284 end = ktime_sub(end, start);
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285 printk("one flush wait time %d\n", (int)ktime_to_us(end));
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292 static int rga_get_result(rga_session *session, unsigned long arg)
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294 //printk("rga_get_result %d\n",drvdata->rga_result);
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300 num_done = atomic_read(&session->num_done);
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302 if (unlikely(copy_to_user((void __user *)arg, &num_done, sizeof(int)))) {
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303 printk("copy_to_user failed\n");
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304 ERR("copy_to_user failed\n");
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311 static int rga_check_param(const struct rga_req *req)
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313 /*RGA can support up to 8192*8192 resolution in RGB format,but we limit the image size to 8191*8191 here*/
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314 //check src width and height
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316 if(!((req->render_mode == color_fill_mode) || (req->render_mode == line_point_drawing_mode)))
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318 if (unlikely((req->src.act_w <= 0) || (req->src.act_w > 8191) || (req->src.act_h <= 0) || (req->src.act_h > 8191)))
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320 ERR("invalid source resolution act_w = %d, act_h = %d\n", req->src.act_w, req->src.act_h);
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325 if(!((req->render_mode == color_fill_mode) || (req->render_mode == line_point_drawing_mode)))
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327 if (unlikely((req->src.vir_w <= 0) || (req->src.vir_w > 8191) || (req->src.vir_h <= 0) || (req->src.vir_h > 8191)))
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329 ERR("invalid source resolution vir_w = %d, vir_h = %d\n", req->src.vir_w, req->src.vir_h);
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334 //check dst width and height
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335 if (unlikely((req->dst.act_w <= 0) || (req->dst.act_w > 2048) || (req->dst.act_h <= 0) || (req->dst.act_h > 2048)))
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337 ERR("invalid destination resolution act_w = %d, act_h = %d\n", req->dst.act_w, req->dst.act_h);
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341 if (unlikely((req->dst.vir_w <= 0) || (req->dst.vir_w > 2048) || (req->dst.vir_h <= 0) || (req->dst.vir_h > 2048)))
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343 ERR("invalid destination resolution vir_w = %d, vir_h = %d\n", req->dst.vir_w, req->dst.vir_h);
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348 if(unlikely(req->src.vir_w < req->src.act_w)){
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349 ERR("invalid src_vir_w act_w = %d, vir_w = %d\n", req->src.act_w, req->src.vir_w);
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354 if(unlikely(req->dst.vir_w < req->dst.act_w)){
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355 ERR("invalid dst_vir_w act_h = %d, vir_h = %d\n", req->dst.act_w, req->dst.vir_w);
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362 static void rga_copy_reg(struct rga_reg *reg, uint32_t offset)
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368 atomic_add(1, &rga_service.cmd_num);
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369 atomic_add(1, ®->session->task_running);
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370 atomic_add(1, &rga_service.total_running);
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372 cmd_buf = (uint32_t *)rga_service.cmd_buff + offset*28;
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373 reg_p = (uint32_t *)reg->cmd_reg;
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375 for(i=0; i<28; i++)
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377 cmd_buf[i] = reg_p[i];
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384 static struct rga_reg * rga_reg_init(rga_session *session, struct rga_req *req)
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386 unsigned long flag;
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388 struct rga_reg *reg = kmalloc(sizeof(struct rga_reg), GFP_KERNEL);
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390 pr_err("kmalloc fail in rga_reg_init\n");
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394 reg->session = session;
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395 INIT_LIST_HEAD(®->session_link);
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396 INIT_LIST_HEAD(®->status_link);
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398 memcpy(®->req, req, sizeof(struct rga_req));
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400 reg->MMU_base = NULL;
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402 if (req->mmu_info.mmu_en)
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404 ret = rga_set_mmu_info(reg, req);
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407 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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416 if(RGA_gen_reg_info(req, (uint8_t *)reg->cmd_reg) == -1)
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418 printk("gen reg info error\n");
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426 spin_lock_irqsave(&rga_service.lock, flag);
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427 list_add_tail(®->status_link, &rga_service.waiting);
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428 list_add_tail(®->session_link, &session->waiting);
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429 spin_unlock_irqrestore(&rga_service.lock, flag);
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434 static struct rga_reg * rga_reg_init_2(rga_session *session, struct rga_req *req0, struct rga_req *req1)
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436 unsigned long flag;
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439 struct rga_reg *reg0, *reg1;
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446 reg0 = kmalloc(sizeof(struct rga_reg), GFP_KERNEL);
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447 if (NULL == reg0) {
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448 pr_err("%s [%d] kmalloc fail in rga_reg_init\n", __FUNCTION__, __LINE__);
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452 reg1 = kmalloc(sizeof(struct rga_reg), GFP_KERNEL);
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453 if (NULL == reg1) {
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454 pr_err("%s [%d] kmalloc fail in rga_reg_init\n", __FUNCTION__, __LINE__);
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458 reg0->session = session;
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459 INIT_LIST_HEAD(®0->session_link);
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460 INIT_LIST_HEAD(®0->status_link);
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462 reg1->session = session;
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463 INIT_LIST_HEAD(®1->session_link);
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464 INIT_LIST_HEAD(®1->status_link);
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466 memcpy(®0->req, req0, sizeof(struct rga_req));
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467 memcpy(®1->req, req1, sizeof(struct rga_req));
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469 if(req0->mmu_info.mmu_en)
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471 ret = rga_set_mmu_info(reg0, req0);
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473 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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478 RGA_gen_reg_info(req0, (uint8_t *)reg0->cmd_reg);
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480 if(req1->mmu_info.mmu_en)
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482 ret = rga_set_mmu_info(reg1, req1);
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484 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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489 RGA_gen_reg_info(req1, (uint8_t *)reg1->cmd_reg);
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491 spin_lock_irqsave(&rga_service.lock, flag);
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492 list_add_tail(®0->status_link, &rga_service.waiting);
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493 list_add_tail(®0->session_link, &session->waiting);
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494 list_add_tail(®1->status_link, &rga_service.waiting);
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495 list_add_tail(®1->session_link, &session->waiting);
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496 spin_unlock_irqrestore(&rga_service.lock, flag);
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514 static void rga_reg_deinit(struct rga_reg *reg)
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516 list_del_init(®->session_link);
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517 list_del_init(®->status_link);
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521 static void rga_reg_from_wait_to_run(struct rga_reg *reg)
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523 list_del_init(®->status_link);
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524 list_add_tail(®->status_link, &rga_service.running);
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526 list_del_init(®->session_link);
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527 list_add_tail(®->session_link, ®->session->running);
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530 static void rga_service_session_clear(rga_session *session)
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532 struct rga_reg *reg, *n;
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534 list_for_each_entry_safe(reg, n, &session->waiting, session_link)
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536 rga_reg_deinit(reg);
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539 list_for_each_entry_safe(reg, n, &session->running, session_link)
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541 rga_reg_deinit(reg);
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546 static void rga_try_set_reg(uint32_t num)
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548 unsigned long flag;
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549 struct rga_reg *reg ;
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554 printk("rga try set reg cmd num is 0\n");
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560 spin_lock_irqsave(&rga_service.lock, flag);
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561 if (!list_empty(&rga_service.waiting))
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565 if(!list_empty(&rga_service.running))
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572 reg = list_entry(rga_service.waiting.next, struct rga_reg, status_link);
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573 rga_copy_reg(reg, 0);
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574 rga_reg_from_wait_to_run(reg);
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576 dmac_flush_range(&rga_service.cmd_buff[0], &rga_service.cmd_buff[28]);
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577 outer_flush_range(virt_to_phys(&rga_service.cmd_buff[0]),virt_to_phys(&rga_service.cmd_buff[28]));
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580 rga_write(0, RGA_MMU_CTRL);
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583 rga_write(virt_to_phys(rga_service.cmd_buff), RGA_CMD_ADDR);
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587 printk("cmd_addr = %.8x\n", rga_read(RGA_CMD_ADDR));
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590 p = rga_service.cmd_buff;
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591 printk("CMD_REG\n");
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592 for (i=0; i<7; i++)
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593 printk("%.8x %.8x %.8x %.8x\n", p[0 + i*4], p[1+i*4], p[2 + i*4], p[3 + i*4]);
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598 rga_write((0x1<<2)|(0x1<<3), RGA_SYS_CTRL);
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600 /* All CMD finish int */
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601 rga_write(rga_read(RGA_INT)|(0x1<<10)|(0x1<<8), RGA_INT);
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604 atomic_set(®->session->done, 0);
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605 rga_write(0x1, RGA_CMD_CTRL);
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610 printk("CMD_READ_BACK_REG\n");
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611 for (i=0; i<7; i++)
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612 printk("%.8x %.8x %.8x %.8x\n", rga_read(0x100 + i*16 + 0),
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613 rga_read(0x100 + i*16 + 4), rga_read(0x100 + i*16 + 8), rga_read(0x100 + i*16 + 12));
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621 spin_unlock_irqrestore(&rga_service.lock, flag);
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626 static void print_info(struct rga_req *req)
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628 printk("src.yrgb_addr = %.8x, src.uv_addr = %.8x, src.v_addr = %.8x\n",
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629 req->src.yrgb_addr, req->src.uv_addr, req->src.v_addr);
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630 printk("src : act_w = %d, act_h = %d, vir_w = %d, vir_h = %d\n",
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631 req->src.act_w, req->src.act_h, req->src.vir_w, req->src.vir_h);
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632 printk("src : x_offset = %.8x y_offset = %.8x\n", req->src.x_offset, req->src.y_offset);
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634 printk("dst.yrgb_addr = %.8x, dst.uv_addr = %.8x, dst.v_addr = %.8x\n",
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635 req->dst.yrgb_addr, req->dst.uv_addr, req->dst.v_addr);
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636 printk("dst : x_offset = %.8x y_offset = %.8x\n", req->dst.x_offset, req->dst.y_offset);
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637 printk("dst : act_w = %d, act_h = %d, vir_w = %d, vir_h = %d\n",
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638 req->dst.act_w, req->dst.act_h, req->dst.vir_w, req->dst.vir_h);
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640 printk("clip.xmin = %d, clip.xmax = %d. clip.ymin = %d, clip.ymax = %d\n",
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641 req->clip.xmin, req->clip.xmax, req->clip.ymin, req->clip.ymax);
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646 static void rga_del_running_list(void)
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648 struct rga_reg *reg;
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650 while(!list_empty(&rga_service.running))
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652 reg = list_entry(rga_service.running.next, struct rga_reg, status_link);
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654 if(reg->MMU_base != NULL)
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656 kfree(reg->MMU_base);
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659 atomic_sub(1, ®->session->task_running);
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660 atomic_sub(1, &rga_service.total_running);
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662 if(list_empty(®->session->waiting))
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664 atomic_set(®->session->done, 1);
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665 wake_up_interruptible_sync(®->session->wait);
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668 rga_reg_deinit(reg);
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672 static void rga_del_running_list_timeout(void)
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674 struct rga_reg *reg;
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676 while(!list_empty(&rga_service.running))
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678 reg = list_entry(rga_service.running.next, struct rga_reg, status_link);
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680 if(reg->MMU_base != NULL)
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682 kfree(reg->MMU_base);
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685 atomic_sub(1, ®->session->task_running);
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686 atomic_sub(1, &rga_service.total_running);
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690 printk("RGA_INT is %.8x\n", rga_read(RGA_INT));
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691 printk("reg->session->task_running = %d\n", atomic_read(®->session->task_running));
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692 printk("rga_service.total_running = %d\n", atomic_read(&rga_service.total_running));
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694 print_info(®->req);
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699 for (i=0; i<7; i++)
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700 printk("%.8x %.8x %.8x %.8x\n", p[0 + i*4], p[1+i*4], p[2 + i*4], p[3 + i*4]);
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705 if(list_empty(®->session->waiting))
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707 atomic_set(®->session->done, 1);
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708 wake_up_interruptible_sync(®->session->wait);
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711 rga_reg_deinit(reg);
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716 static void rga_mem_addr_sel(struct rga_req *req)
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718 switch(req->src.format)
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720 case RK_FORMAT_YCbCr_422_SP:
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722 case RK_FORMAT_YCbCr_422_P :
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724 case RK_FORMAT_YCbCr_420_SP :
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725 if((req->src.yrgb_addr > 0xc0000000) && (req->src.uv_addr > 0xc0000000)
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726 && (req->dst.yrgb_addr > 0xc0000000))
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728 req->src.yrgb_addr = req->src.yrgb_addr - 0x60000000;
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729 req->src.uv_addr = req->src.uv_addr - 0x60000000;
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730 req->dst.yrgb_addr = req->dst.yrgb_addr - 0x60000000;
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731 req->mmu_info.mmu_en = 0;
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732 req->mmu_info.mmu_flag &= 0xfffe;
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735 case RK_FORMAT_YCbCr_420_P :
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737 case RK_FORMAT_YCrCb_422_SP :
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739 case RK_FORMAT_YCrCb_422_P :
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741 case RK_FORMAT_YCrCb_420_SP :
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743 case RK_FORMAT_YCrCb_420_P :
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752 static int rga_blit(rga_session *session, struct rga_req *req)
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756 struct rga_reg *reg;
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757 struct rga_req *req2;
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759 uint32_t saw, sah, daw, dah;
\r
763 saw = req->src.act_w;
\r
764 sah = req->src.act_h;
\r
765 daw = req->dst.act_w;
\r
766 dah = req->dst.act_h;
\r
770 if((req->render_mode == bitblt_mode) && (((saw>>1) >= daw) || ((sah>>1) >= dah)))
\r
772 /* generate 2 cmd for pre scale */
\r
773 req2 = kmalloc(sizeof(struct rga_req), GFP_KERNEL);
\r
778 ret = rga_check_param(req);
\r
779 if(ret == -EINVAL) {
\r
780 printk("req 0 argument is inval\n");
\r
784 ret = RGA_gen_two_pro(req, req2);
\r
785 if(ret == -EINVAL) {
\r
789 ret = rga_check_param(req);
\r
790 if(ret == -EINVAL) {
\r
791 printk("req 1 argument is inval\n");
\r
795 ret = rga_check_param(req2);
\r
796 if(ret == -EINVAL) {
\r
797 printk("req 2 argument is inval\n");
\r
801 reg = rga_reg_init_2(session, req, req2);
\r
809 /* check value if legal */
\r
810 ret = rga_check_param(req);
\r
811 if(ret == -EINVAL) {
\r
812 printk("req argument is inval\n");
\r
816 if(req->render_mode == bitblt_mode)
\r
818 rga_mem_addr_sel(req);
\r
821 reg = rga_reg_init(session, req);
\r
828 atomic_set(®->int_enable, 1);
\r
829 rga_try_set_reg(num);
\r
843 static int rga_blit_async(rga_session *session, struct rga_req *req)
\r
848 printk("*** rga_blit_async proc ***\n");
\r
852 ret = rga_blit(session, req);
\r
857 static int rga_blit_sync(rga_session *session, struct rga_req *req)
\r
860 int ret_timeout = 0;
\r
863 printk("*** rga_blit_sync proc ***\n");
\r
868 rga_start = ktime_get();
\r
871 ret = rga_blit(session, req);
\r
873 ret_timeout = wait_event_interruptible_timeout(session->wait, atomic_read(&session->done), RGA_TIMEOUT_DELAY);
\r
875 if (unlikely(ret_timeout< 0))
\r
877 pr_err("sync pid %d wait task ret %d\n", session->pid, ret_timeout);
\r
878 rga_del_running_list();
\r
881 else if (0 == ret_timeout)
\r
883 pr_err("sync pid %d wait %d task done timeout\n", session->pid, atomic_read(&session->task_running));
\r
884 rga_del_running_list_timeout();
\r
885 rga_try_set_reg(1);
\r
890 rga_end = ktime_get();
\r
891 rga_end = ktime_sub(rga_end, rga_start);
\r
892 printk("sync one cmd end time %d\n", (int)ktime_to_us(rga_end));
\r
899 static long rga_ioctl(struct file *file, uint32_t cmd, unsigned long arg)
\r
901 struct rga_req *req;
\r
903 rga_session *session = (rga_session *)file->private_data;
\r
905 if (NULL == session)
\r
907 printk("%s [%d] rga thread session is null\n",__FUNCTION__,__LINE__);
\r
911 mutex_lock(&rga_service.mutex);
\r
913 req = (struct rga_req *)kmalloc(sizeof(struct rga_req), GFP_KERNEL);
\r
916 printk("%s [%d] get rga_req mem failed\n",__FUNCTION__,__LINE__);
\r
917 mutex_unlock(&rga_service.mutex);
\r
923 case RGA_BLIT_SYNC:
\r
924 if (unlikely(copy_from_user(req, (struct rga_req*)arg, sizeof(struct rga_req))))
\r
926 ERR("copy_from_user failed\n");
\r
931 ret = rga_blit_sync(session, req);
\r
933 case RGA_BLIT_ASYNC:
\r
934 if (unlikely(copy_from_user(req, (struct rga_req*)arg, sizeof(struct rga_req))))
\r
936 ERR("copy_from_user failed\n");
\r
942 if((atomic_read(&rga_service.total_running) > 16))
\r
944 ret = rga_blit_sync(session, req);
\r
948 ret = rga_blit_async(session, req);
\r
952 ret = rga_flush(session, arg);
\r
954 case RGA_GET_RESULT:
\r
955 ret = rga_get_result(session, arg);
\r
957 ERR("unknown ioctl cmd!\n");
\r
966 mutex_unlock(&rga_service.mutex);
\r
971 static int rga_open(struct inode *inode, struct file *file)
\r
973 unsigned long flag;
\r
974 rga_session *session = (rga_session *)kmalloc(sizeof(rga_session), GFP_KERNEL);
\r
975 if (NULL == session) {
\r
976 pr_err("unable to allocate memory for rga_session.");
\r
980 session->pid = current->pid;
\r
981 INIT_LIST_HEAD(&session->waiting);
\r
982 INIT_LIST_HEAD(&session->running);
\r
983 INIT_LIST_HEAD(&session->list_session);
\r
984 init_waitqueue_head(&session->wait);
\r
986 spin_lock_irqsave(&rga_service.lock, flag);
\r
987 list_add_tail(&session->list_session, &rga_service.session);
\r
988 spin_unlock_irqrestore(&rga_service.lock, flag);
\r
990 atomic_set(&session->task_running, 0);
\r
991 atomic_set(&session->num_done, 0);
\r
992 file->private_data = (void *)session;
\r
994 DBG("*** rga dev opened by pid %d *** \n", session->pid);
\r
995 return nonseekable_open(inode, file);
\r
999 static int rga_release(struct inode *inode, struct file *file)
\r
1002 unsigned long flag;
\r
1003 rga_session *session = (rga_session *)file->private_data;
\r
1004 if (NULL == session)
\r
1007 task_running = atomic_read(&session->task_running);
\r
1009 if (task_running)
\r
1011 pr_err("rga_service session %d still has %d task running when closing\n", session->pid, task_running);
\r
1016 wake_up_interruptible_sync(&session->wait);
\r
1017 spin_lock_irqsave(&rga_service.lock, flag);
\r
1018 list_del(&session->list_session);
\r
1019 rga_service_session_clear(session);
\r
1021 spin_unlock_irqrestore(&rga_service.lock, flag);
\r
1023 DBG("*** rga dev close ***\n");
\r
1027 static irqreturn_t rga_irq(int irq, void *dev_id)
\r
1029 unsigned long flag;
\r
1032 printk("rga_irq is valid\n");
\r
1035 #if 0//RGA_INFO_BUS_ERROR
\r
1036 if(rga_read(RGA_INT) & 0x1)
\r
1038 printk("bus Error interrupt is occur\n");
\r
1044 rga_write(rga_read(RGA_INT) | (0x1<<6) | (0x1<<7) | (0x1<<4), RGA_INT);
\r
1046 spin_lock_irqsave(&rga_service.lock, flag);
\r
1047 rga_del_running_list();
\r
1049 if(!list_empty(&rga_service.waiting))
\r
1051 spin_unlock_irqrestore(&rga_service.lock, flag);
\r
1052 rga_try_set_reg(1);
\r
1056 spin_unlock_irqrestore(&rga_service.lock, flag);
\r
1059 return IRQ_HANDLED;
\r
1062 static int rga_suspend(struct platform_device *pdev, pm_message_t state)
\r
1066 enable = rga_service.enable;
\r
1068 rga_service.enable = enable;
\r
1073 static int rga_resume(struct platform_device *pdev)
\r
1075 if(rga_service.enable)
\r
1077 rga_service.enable = false;
\r
1079 rga_try_set_reg(1);
\r
1085 static void rga_shutdown(struct platform_device *pdev)
\r
1087 pr_cont("shutdown...");
\r
1089 pr_cont("done\n");
\r
1092 struct file_operations rga_fops = {
\r
1093 .owner = THIS_MODULE,
\r
1095 .release = rga_release,
\r
1096 .unlocked_ioctl = rga_ioctl,
\r
1099 static struct miscdevice rga_dev ={
\r
1100 .minor = RGA_MAJOR,
\r
1102 .fops = &rga_fops,
\r
1105 static int __devinit rga_drv_probe(struct platform_device *pdev)
\r
1107 struct rga_drvdata *data;
\r
1110 data = kmalloc(sizeof(struct rga_drvdata), GFP_KERNEL);
\r
1112 memset(data, 0x0, sizeof(struct rga_drvdata));
\r
1114 INIT_LIST_HEAD(&rga_service.waiting);
\r
1115 INIT_LIST_HEAD(&rga_service.running);
\r
1116 INIT_LIST_HEAD(&rga_service.done);
\r
1117 INIT_LIST_HEAD(&rga_service.session);
\r
1118 spin_lock_init(&rga_service.lock);
\r
1119 spin_lock_init(&rga_service.lock_power);
\r
1120 atomic_set(&rga_service.total_running, 0);
\r
1121 atomic_set(&rga_service.src_format_swt, 0);
\r
1122 rga_service.last_prc_src_format = 1; /* default is yuv first*/
\r
1123 rga_service.enable = false;
\r
1127 ERR("failed to allocate driver data.\n");
\r
1131 aclk_rga = clk_get(NULL, "aclk_rga");
\r
1132 if (IS_ERR(aclk_rga))
\r
1134 ERR("failed to find rga axi clock source.\n");
\r
1139 hclk_rga = clk_get(NULL, "hclk_rga");
\r
1140 if (IS_ERR(hclk_rga))
\r
1142 ERR("failed to find rga ahb clock source.\n");
\r
1149 /* map the memory */
\r
1150 if (!request_mem_region(RK30_RGA_PHYS, RK30_RGA_SIZE, "rga_io"))
\r
1152 pr_info("failed to reserve rga HW regs\n");
\r
1155 data->rga_base = (void*)ioremap_nocache(RK30_RGA_PHYS, RK30_RGA_SIZE);
\r
1156 if (data->rga_base == NULL)
\r
1158 ERR("rga ioremap failed\n");
\r
1164 data->irq0 = pdev->resource[1].start;
\r
1165 printk("rga irq %d\n", data->irq0);
\r
1166 if (data->irq0 <= 0)
\r
1168 ERR("failed to get rga irq resource (%d).\n", data->irq0);
\r
1173 /* request the IRQ */
\r
1174 ret = request_irq(data->irq0, rga_irq, 0/*IRQF_DISABLED*/, "rga", pdev);
\r
1177 ERR("rga request_irq failed (%d).\n", ret);
\r
1181 mutex_init(&rga_service.mutex);
\r
1182 rga_service.enable = false;
\r
1183 INIT_DELAYED_WORK(&data->power_off_work, rga_power_off);
\r
1184 data->rga_irq_callback = NULL;
\r
1186 platform_set_drvdata(pdev, data);
\r
1189 ret = misc_register(&rga_dev);
\r
1192 ERR("cannot register miscdev (%d)\n", ret);
\r
1193 goto err_misc_register;
\r
1198 DBG("RGA Driver loaded succesfully\n");
\r
1202 err_misc_register:
\r
1203 free_irq(data->irq0, pdev);
\r
1205 iounmap(data->rga_base);
\r
1213 static int rga_drv_remove(struct platform_device *pdev)
\r
1215 struct rga_drvdata *data = platform_get_drvdata(pdev);
\r
1216 DBG("%s [%d]\n",__FUNCTION__,__LINE__);
\r
1218 misc_deregister(&(data->miscdev));
\r
1219 free_irq(data->irq0, &data->miscdev);
\r
1220 iounmap((void __iomem *)(data->rga_base));
\r
1223 clk_put(aclk_rga);
\r
1227 clk_put(hclk_rga);
\r
1234 static struct platform_driver rga_driver = {
\r
1235 .probe = rga_drv_probe,
\r
1236 .remove = __devexit_p(rga_drv_remove),
\r
1237 .suspend = rga_suspend,
\r
1238 .resume = rga_resume,
\r
1239 .shutdown = rga_shutdown,
\r
1241 .owner = THIS_MODULE,
\r
1247 void rga_test_0(void);
\r
1248 void rga_test_1(void);
\r
1251 static int __init rga_init(void)
\r
1254 uint32_t *mmu_buf;
\r
1258 /* malloc pre scale mid buf mmu table */
\r
1259 mmu_buf = (uint32_t *)kmalloc(1024*8, GFP_KERNEL);
\r
1260 if(mmu_buf == NULL)
\r
1262 printk(KERN_ERR "RGA get Pre Scale buff failed. \n");
\r
1266 /* malloc 8 M buf */
\r
1267 for(i=0; i<2048; i++)
\r
1269 buf_p = (uint32_t *)__get_free_page(GFP_KERNEL);
\r
1272 printk(KERN_ERR "RGA init pre scale buf falied\n");
\r
1276 mmu_buf[i] = virt_to_phys((void *)((uint32_t)buf_p));
\r
1279 rga_service.pre_scale_buf = (uint32_t *)mmu_buf;
\r
1281 if ((ret = platform_driver_register(&rga_driver)) != 0)
\r
1283 printk(KERN_ERR "Platform device register failed (%d).\n", ret);
\r
1289 INFO("Module initialized.\n");
\r
1294 static void __exit rga_exit(void)
\r
1300 for(i=0; i<2048; i++)
\r
1302 if((uint32_t *)rga_service.pre_scale_buf[i] != NULL)
\r
1304 __free_page((void *)rga_service.pre_scale_buf[i]);
\r
1308 if(rga_service.pre_scale_buf != NULL) {
\r
1309 kfree((uint8_t *)rga_service.pre_scale_buf);
\r
1311 platform_driver_unregister(&rga_driver);
\r
1317 #include "320x240_swap0_Y4200.h"
\r
1318 #include "320x240_swap0_U4200.h"
\r
1319 #include "320x240_swap0_V4200.h"
\r
1320 #include "320x240_swap0_UV4200.h"
\r
1321 #include "320x240_swap0_ABGR8888.h"
\r
1324 extern struct fb_info * rk_get_fb(int fb_id);
\r
1325 EXPORT_SYMBOL(rk_get_fb);
\r
1327 extern void rk_direct_fb_show(struct fb_info * fbi);
\r
1328 EXPORT_SYMBOL(rk_direct_fb_show);
\r
1330 unsigned int src_buf[1920*1080];
\r
1331 unsigned int dst_buf[1920*1080];
\r
1333 void rga_test_0(void)
\r
1335 struct rga_req req;
\r
1336 rga_session session;
\r
1337 unsigned int *src, *dst;
\r
1339 struct fb_info *fb;
\r
1341 session.pid = current->pid;
\r
1342 INIT_LIST_HEAD(&session.waiting);
\r
1343 INIT_LIST_HEAD(&session.running);
\r
1344 INIT_LIST_HEAD(&session.list_session);
\r
1345 init_waitqueue_head(&session.wait);
\r
1346 /* no need to protect */
\r
1347 list_add_tail(&session.list_session, &rga_service.session);
\r
1348 atomic_set(&session.task_running, 0);
\r
1349 atomic_set(&session.num_done, 0);
\r
1350 //file->private_data = (void *)session;
\r
1352 fb = rk_get_fb(0);
\r
1354 memset(&req, 0, sizeof(struct rga_req));
\r
1355 src = Y4200_320_240_swap0;
\r
1358 //memset(src_buf, 0x80, 1920*1080*4);
\r
1360 //dmac_flush_range(&src_buf[0], &src_buf[1920*1080]);
\r
1361 //outer_flush_range(virt_to_phys(&src_buf[0]),virt_to_phys(&src_buf[1024*1024]));
\r
1364 memset(src_buf, 0x80, 800*480*4);
\r
1365 memset(dst_buf, 0xcc, 800*480*4);
\r
1367 dmac_flush_range(&dst_buf[0], &dst_buf[800*480]);
\r
1368 outer_flush_range(virt_to_phys(&dst_buf[0]),virt_to_phys(&dst_buf[800*480]));
\r
1371 req.src.act_w = 320;
\r
1372 req.src.act_h = 240;
\r
1374 req.src.vir_w = 320;
\r
1375 req.src.vir_h = 240;
\r
1376 req.src.yrgb_addr = (uint32_t)src;
\r
1377 req.src.uv_addr = (uint32_t)UV4200_320_240_swap0;
\r
1378 req.src.v_addr = (uint32_t)V4200_320_240_swap0;
\r
1379 req.src.format = RK_FORMAT_YCbCr_420_SP;
\r
1381 req.dst.act_w = 1280;
\r
1382 req.dst.act_h = 800;
\r
1384 req.dst.vir_w = 1280;
\r
1385 req.dst.vir_h = 800;
\r
1386 req.dst.x_offset = 0;
\r
1387 req.dst.y_offset = 0;
\r
1388 req.dst.yrgb_addr = (uint32_t)dst;
\r
1390 //req.dst.format = RK_FORMAT_RGB_565;
\r
1392 req.clip.xmin = 0;
\r
1393 req.clip.xmax = 1279;
\r
1394 req.clip.ymin = 0;
\r
1395 req.clip.ymax = 799;
\r
1397 //req.render_mode = color_fill_mode;
\r
1398 //req.fg_color = 0x80ffffff;
\r
1400 req.rotate_mode = 1;
\r
1401 req.scale_mode = 2;
\r
1403 //req.alpha_rop_flag = 0;
\r
1404 //req.alpha_rop_mode = 0x1;
\r
1409 req.mmu_info.mmu_flag = 0x21;
\r
1410 req.mmu_info.mmu_en = 1;
\r
1412 rga_blit_sync(&session, &req);
\r
1414 fb->var.bits_per_pixel = 32;
\r
1416 fb->var.xres = 1280;
\r
1417 fb->var.yres = 800;
\r
1419 fb->var.red.length = 8;
\r
1420 fb->var.red.offset = 0;
\r
1421 fb->var.red.msb_right = 0;
\r
1423 fb->var.green.length = 8;
\r
1424 fb->var.green.offset = 8;
\r
1425 fb->var.green.msb_right = 0;
\r
1427 fb->var.blue.length = 8;
\r
1429 fb->var.blue.offset = 16;
\r
1430 fb->var.blue.msb_right = 0;
\r
1432 fb->var.transp.length = 8;
\r
1433 fb->var.transp.offset = 24;
\r
1434 fb->var.transp.msb_right = 0;
\r
1436 fb->var.nonstd &= (~0xff);
\r
1437 fb->var.nonstd |= 1;
\r
1439 fb->fix.smem_start = virt_to_phys(dst);
\r
1441 rk_direct_fb_show(fb);
\r
1446 module_init(rga_init);
\r
1447 module_exit(rga_exit);
\r
1449 /* Module information */
\r
1450 MODULE_AUTHOR("zsq@rock-chips.com");
\r
1451 MODULE_DESCRIPTION("Driver for rga device");
\r
1452 MODULE_LICENSE("GPL");
\r