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 #define pr_fmt(fmt) "rga: " fmt
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16 #include <linux/kernel.h>
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17 #include <linux/init.h>
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18 #include <linux/module.h>
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19 #include <linux/platform_device.h>
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20 #include <linux/sched.h>
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21 #include <linux/mutex.h>
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22 #include <linux/err.h>
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23 #include <linux/clk.h>
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24 #include <asm/delay.h>
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25 #include <linux/dma-mapping.h>
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26 #include <linux/delay.h>
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28 #include <linux/irq.h>
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29 #include <linux/interrupt.h>
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30 #include <mach/io.h>
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31 #include <mach/irqs.h>
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32 #include <linux/fs.h>
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33 #include <asm/uaccess.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/slab.h>
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43 #include <linux/fb.h>
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44 #include <linux/wakelock.h>
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47 #include "rga_reg_info.h"
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48 #include "rga_mmu_info.h"
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49 #include "RGA_API.h"
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52 #define RGA_TEST_TIME 0
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53 #define RGA_TEST_FLUSH_TIME 0
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54 #define RGA_INFO_BUS_ERROR 1
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56 #define PRE_SCALE_BUF_SIZE 2048*1024*4
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58 #define RGA_POWER_OFF_DELAY 4*HZ /* 4s */
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59 #define RGA_TIMEOUT_DELAY 2*HZ /* 2s */
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61 #define RGA_MAJOR 255
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63 #define RK30_RGA_PHYS 0x10114000
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64 #define RK30_RGA_SIZE SZ_8K
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65 #define RGA_RESET_TIMEOUT 1000
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67 /* Driver information */
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68 #define DRIVER_DESC "RGA Device Driver"
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69 #define DRIVER_NAME "rga"
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71 #define RGA_VERSION "1.000"
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78 struct rga_drvdata {
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79 struct miscdevice miscdev;
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84 struct delayed_work power_off_work;
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85 void (*rga_irq_callback)(int rga_retval); //callback function used by aync call
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86 struct wake_lock wake_lock;
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88 struct clk *aclk_rga;
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89 struct clk *hclk_rga;
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93 static struct rga_drvdata *drvdata;
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94 rga_service_info rga_service;
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96 static int rga_blit_async(rga_session *session, struct rga_req *req);
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97 static void rga_del_running_list(void);
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98 static void rga_del_running_list_timeout(void);
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99 static void rga_try_set_reg(void);
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103 #define RGA_DEBUG 0
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105 #define DBG(format, args...) printk(KERN_DEBUG "%s: " format, DRIVER_NAME, ## args)
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106 #define ERR(format, args...) printk(KERN_ERR "%s: " format, DRIVER_NAME, ## args)
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107 #define WARNING(format, args...) printk(KERN_WARN "%s: " format, DRIVER_NAME, ## args)
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108 #define INFO(format, args...) printk(KERN_INFO "%s: " format, DRIVER_NAME, ## args)
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110 #define DBG(format, args...)
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111 #define ERR(format, args...)
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112 #define WARNING(format, args...)
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113 #define INFO(format, args...)
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117 static inline void rga_write(u32 b, u32 r)
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119 __raw_writel(b, drvdata->rga_base + r);
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122 static inline u32 rga_read(u32 r)
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124 return __raw_readl(drvdata->rga_base + r);
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127 static void rga_soft_reset(void)
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132 rga_write(1, RGA_SYS_CTRL); //RGA_SYS_CTRL
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134 for(i = 0; i < RGA_RESET_TIMEOUT; i++)
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136 reg = rga_read(RGA_SYS_CTRL) & 1; //RGA_SYS_CTRL
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144 if(i == RGA_RESET_TIMEOUT)
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145 ERR("soft reset timeout.\n");
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148 static void rga_dump(void)
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152 struct rga_reg *reg, *reg_tmp;
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153 rga_session *session, *session_tmp;
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154 struct list_head *next;
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156 running = atomic_read(&rga_service.total_running);
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157 printk("rga total_running %d\n", running);
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159 /* Dump waiting list info */
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160 if (!list_empty(&rga_service.waiting))
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162 next = &rga_service.waiting;
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164 printk("rga_service dump waiting list\n");
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168 reg = list_entry(next->next, struct rga_reg, status_link);
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169 running = atomic_read(®->session->task_running);
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170 num_done = atomic_read(®->session->num_done);
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171 printk("rga session pid %d, done %d, running %d\n", reg->session->pid, num_done, running);
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174 while(!list_empty(next));
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177 /* Dump running list info */
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178 if (!list_empty(&rga_service.running))
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180 printk("rga_service dump running list\n");
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182 next = &rga_service.running;
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185 reg = list_entry(next->next, struct rga_reg, status_link);
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186 running = atomic_read(®->session->task_running);
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187 num_done = atomic_read(®->session->num_done);
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188 printk("rga session pid %d, done %d, running %d:\n", reg->session->pid, num_done, running);
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191 while(!list_empty(next));
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194 list_for_each_entry_safe(session, session_tmp, &rga_service.session, list_session)
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196 printk("session pid %d:\n", session->pid);
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197 running = atomic_read(&session->task_running);
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198 printk("task_running %d\n", running);
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199 list_for_each_entry_safe(reg, reg_tmp, &session->waiting, session_link)
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201 printk("waiting register set 0x%.8x\n", (unsigned int)reg);
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203 list_for_each_entry_safe(reg, reg_tmp, &session->running, session_link)
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205 printk("running register set 0x%.8x\n", (unsigned int)reg);
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210 /* Caller must hold rga_service.lock */
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211 static void rga_power_on(void)
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213 cancel_delayed_work_sync(&drvdata->power_off_work);
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214 queue_delayed_work(system_nrt_wq, &drvdata->power_off_work, RGA_POWER_OFF_DELAY);
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215 if (rga_service.enable)
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218 clk_enable(drvdata->aclk_rga);
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219 clk_enable(drvdata->hclk_rga);
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220 clk_enable(drvdata->pd_rga);
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221 wake_lock(&drvdata->wake_lock);
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222 rga_service.enable = true;
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225 /* Caller must hold rga_service.lock */
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226 static void rga_power_off(void)
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230 if (!rga_service.enable) {
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234 total_running = atomic_read(&rga_service.total_running);
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235 if (total_running) {
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236 pr_err("power off when %d task running!!\n", total_running);
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238 pr_err("delay 50 ms for running task\n");
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242 clk_disable(drvdata->pd_rga);
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243 clk_disable(drvdata->aclk_rga);
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244 clk_disable(drvdata->hclk_rga);
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245 wake_unlock(&drvdata->wake_lock);
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246 rga_service.enable = false;
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249 static void rga_power_off_work(struct work_struct *work)
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251 mutex_lock(&rga_service.lock);
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253 mutex_unlock(&rga_service.lock);
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256 static int rga_flush(rga_session *session, unsigned long arg)
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261 #if RGA_TEST_FLUSH_TIME
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264 start = ktime_get();
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267 ret_timeout = wait_event_interruptible_timeout(session->wait, atomic_read(&session->done), RGA_TIMEOUT_DELAY);
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269 if (unlikely(ret_timeout < 0)) {
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270 pr_err("flush pid %d wait task ret %d\n", session->pid, ret);
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271 mutex_lock(&rga_service.lock);
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272 rga_del_running_list();
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273 mutex_unlock(&rga_service.lock);
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275 } else if (0 == ret_timeout) {
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276 pr_err("flush pid %d wait %d task done timeout\n", session->pid, atomic_read(&session->task_running));
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277 printk("bus = %.8x\n", rga_read(RGA_INT));
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278 mutex_lock(&rga_service.lock);
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279 rga_del_running_list_timeout();
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281 mutex_unlock(&rga_service.lock);
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285 #if RGA_TEST_FLUSH_TIME
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287 end = ktime_sub(end, start);
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288 printk("one flush wait time %d\n", (int)ktime_to_us(end));
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295 static int rga_get_result(rga_session *session, unsigned long arg)
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297 //printk("rga_get_result %d\n",drvdata->rga_result);
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303 num_done = atomic_read(&session->num_done);
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305 if (unlikely(copy_to_user((void __user *)arg, &num_done, sizeof(int)))) {
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306 printk("copy_to_user failed\n");
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307 ERR("copy_to_user failed\n");
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314 static int rga_check_param(const struct rga_req *req)
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316 /*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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317 //check src width and height
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319 if(!((req->render_mode == color_fill_mode) || (req->render_mode == line_point_drawing_mode)))
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321 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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323 ERR("invalid source resolution act_w = %d, act_h = %d\n", req->src.act_w, req->src.act_h);
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328 if(!((req->render_mode == color_fill_mode) || (req->render_mode == line_point_drawing_mode)))
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330 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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332 ERR("invalid source resolution vir_w = %d, vir_h = %d\n", req->src.vir_w, req->src.vir_h);
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337 //check dst width and height
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338 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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340 ERR("invalid destination resolution act_w = %d, act_h = %d\n", req->dst.act_w, req->dst.act_h);
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344 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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346 ERR("invalid destination resolution vir_w = %d, vir_h = %d\n", req->dst.vir_w, req->dst.vir_h);
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351 if(unlikely(req->src.vir_w < req->src.act_w)){
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352 ERR("invalid src_vir_w act_w = %d, vir_w = %d\n", req->src.act_w, req->src.vir_w);
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357 if(unlikely(req->dst.vir_w < req->dst.act_w)){
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358 ERR("invalid dst_vir_w act_h = %d, vir_h = %d\n", req->dst.act_w, req->dst.vir_w);
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365 static void rga_copy_reg(struct rga_reg *reg, uint32_t offset)
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371 if(atomic_read(®->session->task_running) != 0)
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373 printk(KERN_ERR "task_running is no zero\n");
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376 atomic_add(1, &rga_service.cmd_num);
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377 atomic_add(1, ®->session->task_running);
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379 cmd_buf = (uint32_t *)rga_service.cmd_buff + offset*28;
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380 reg_p = (uint32_t *)reg->cmd_reg;
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382 for(i=0; i<28; i++)
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384 cmd_buf[i] = reg_p[i];
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391 static struct rga_reg * rga_reg_init(rga_session *session, struct rga_req *req)
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394 struct rga_reg *reg = kzalloc(sizeof(struct rga_reg), GFP_KERNEL);
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396 pr_err("kmalloc fail in rga_reg_init\n");
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400 reg->session = session;
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401 INIT_LIST_HEAD(®->session_link);
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402 INIT_LIST_HEAD(®->status_link);
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404 //memcpy(®->req, req, sizeof(struct rga_req));
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406 reg->MMU_base = NULL;
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408 if (req->mmu_info.mmu_en)
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410 ret = rga_set_mmu_info(reg, req);
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413 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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422 if(RGA_gen_reg_info(req, (uint8_t *)reg->cmd_reg) == -1)
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424 printk("gen reg info error\n");
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432 mutex_lock(&rga_service.lock);
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433 list_add_tail(®->status_link, &rga_service.waiting);
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434 list_add_tail(®->session_link, &session->waiting);
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435 mutex_unlock(&rga_service.lock);
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440 static struct rga_reg * rga_reg_init_2(rga_session *session, struct rga_req *req0, struct rga_req *req1)
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444 struct rga_reg *reg0, *reg1;
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451 reg0 = kzalloc(sizeof(struct rga_reg), GFP_KERNEL);
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452 if (NULL == reg0) {
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453 pr_err("%s [%d] kmalloc fail in rga_reg_init\n", __FUNCTION__, __LINE__);
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457 reg1 = kzalloc(sizeof(struct rga_reg), GFP_KERNEL);
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458 if (NULL == reg1) {
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459 pr_err("%s [%d] kmalloc fail in rga_reg_init\n", __FUNCTION__, __LINE__);
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463 reg0->session = session;
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464 INIT_LIST_HEAD(®0->session_link);
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465 INIT_LIST_HEAD(®0->status_link);
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467 reg1->session = session;
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468 INIT_LIST_HEAD(®1->session_link);
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469 INIT_LIST_HEAD(®1->status_link);
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471 //memcpy(®0->req, req0, sizeof(struct rga_req));
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472 //memcpy(®1->req, req1, sizeof(struct rga_req));
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474 if(req0->mmu_info.mmu_en)
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476 ret = rga_set_mmu_info(reg0, req0);
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478 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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483 RGA_gen_reg_info(req0, (uint8_t *)reg0->cmd_reg);
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485 if(req1->mmu_info.mmu_en)
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487 ret = rga_set_mmu_info(reg1, req1);
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489 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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494 RGA_gen_reg_info(req1, (uint8_t *)reg1->cmd_reg);
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496 mutex_lock(&rga_service.lock);
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497 list_add_tail(®0->status_link, &rga_service.waiting);
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498 list_add_tail(®0->session_link, &session->waiting);
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499 list_add_tail(®1->status_link, &rga_service.waiting);
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500 list_add_tail(®1->session_link, &session->waiting);
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501 mutex_unlock(&rga_service.lock);
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518 /* Caller must hold rga_service.lock */
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519 static void rga_reg_deinit(struct rga_reg *reg)
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521 list_del_init(®->session_link);
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522 list_del_init(®->status_link);
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526 /* Caller must hold rga_service.lock */
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527 static void rga_reg_from_wait_to_run(struct rga_reg *reg)
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529 list_del_init(®->status_link);
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530 list_add_tail(®->status_link, &rga_service.running);
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532 list_del_init(®->session_link);
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533 list_add_tail(®->session_link, ®->session->running);
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536 /* Caller must hold rga_service.lock */
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537 static void rga_service_session_clear(rga_session *session)
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539 struct rga_reg *reg, *n;
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541 list_for_each_entry_safe(reg, n, &session->waiting, session_link)
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543 rga_reg_deinit(reg);
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546 list_for_each_entry_safe(reg, n, &session->running, session_link)
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548 rga_reg_deinit(reg);
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552 /* Caller must hold rga_service.lock */
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553 static void rga_try_set_reg(void)
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555 struct rga_reg *reg ;
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557 if (list_empty(&rga_service.running))
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559 if (!list_empty(&rga_service.waiting))
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562 reg = list_entry(rga_service.waiting.next, struct rga_reg, status_link);
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567 rga_copy_reg(reg, 0);
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568 rga_reg_from_wait_to_run(reg);
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570 dmac_flush_range(&rga_service.cmd_buff[0], &rga_service.cmd_buff[28]);
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571 outer_flush_range(virt_to_phys(&rga_service.cmd_buff[0]),virt_to_phys(&rga_service.cmd_buff[28]));
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574 rga_write(0, RGA_MMU_CTRL);
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577 rga_write(virt_to_phys(rga_service.cmd_buff), RGA_CMD_ADDR);
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581 //printk(KERN_DEBUG "cmd_addr = %.8x\n", rga_read(RGA_CMD_ADDR));
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584 p = rga_service.cmd_buff;
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585 printk(KERN_DEBUG "CMD_REG\n");
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586 for (i=0; i<7; i++)
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587 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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592 rga_write((0x1<<2)|(0x1<<3), RGA_SYS_CTRL);
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594 /* All CMD finish int */
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595 rga_write(rga_read(RGA_INT)|(0x1<<10)|(0x1<<8), RGA_INT);
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598 atomic_set(®->session->done, 0);
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599 rga_write(0x1, RGA_CMD_CTRL);
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604 printk(KERN_DEBUG "CMD_READ_BACK_REG\n");
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605 for (i=0; i<7; i++)
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606 printk(KERN_DEBUG "%.8x %.8x %.8x %.8x\n", rga_read(0x100 + i*16 + 0),
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607 rga_read(0x100 + i*16 + 4), rga_read(0x100 + i*16 + 8), rga_read(0x100 + i*16 + 12));
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613 // rga_power_off();
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620 static void print_info(struct rga_req *req)
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622 printk("src.yrgb_addr = %.8x, src.uv_addr = %.8x, src.v_addr = %.8x\n",
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623 req->src.yrgb_addr, req->src.uv_addr, req->src.v_addr);
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624 printk("src : act_w = %d, act_h = %d, vir_w = %d, vir_h = %d\n",
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625 req->src.act_w, req->src.act_h, req->src.vir_w, req->src.vir_h);
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626 printk("src : x_offset = %.8x y_offset = %.8x\n", req->src.x_offset, req->src.y_offset);
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628 printk("dst.yrgb_addr = %.8x, dst.uv_addr = %.8x, dst.v_addr = %.8x\n",
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629 req->dst.yrgb_addr, req->dst.uv_addr, req->dst.v_addr);
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630 printk("dst : x_offset = %.8x y_offset = %.8x\n", req->dst.x_offset, req->dst.y_offset);
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631 printk("dst : act_w = %d, act_h = %d, vir_w = %d, vir_h = %d\n",
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632 req->dst.act_w, req->dst.act_h, req->dst.vir_w, req->dst.vir_h);
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634 printk("clip.xmin = %d, clip.xmax = %d. clip.ymin = %d, clip.ymax = %d\n",
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635 req->clip.xmin, req->clip.xmax, req->clip.ymin, req->clip.ymax);
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639 /* Caller must hold rga_service.lock */
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640 static void rga_del_running_list(void)
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642 struct rga_reg *reg;
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644 while(!list_empty(&rga_service.running))
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646 reg = list_entry(rga_service.running.next, struct rga_reg, status_link);
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648 if(reg->MMU_base != NULL)
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650 kfree(reg->MMU_base);
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651 reg->MMU_base = NULL;
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653 atomic_sub(1, ®->session->task_running);
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654 atomic_sub(1, &rga_service.total_running);
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656 if(list_empty(®->session->waiting))
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658 atomic_set(®->session->done, 1);
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659 wake_up_interruptible_sync(®->session->wait);
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662 rga_reg_deinit(reg);
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666 /* Caller must hold rga_service.lock */
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667 static void rga_del_running_list_timeout(void)
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669 struct rga_reg *reg;
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671 while(!list_empty(&rga_service.running))
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673 reg = list_entry(rga_service.running.next, struct rga_reg, status_link);
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675 if(reg->MMU_base != NULL)
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677 kfree(reg->MMU_base);
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680 atomic_sub(1, ®->session->task_running);
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681 atomic_sub(1, &rga_service.total_running);
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685 printk("RGA_INT is %.8x\n", rga_read(RGA_INT));
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686 printk("reg->session->task_running = %d\n", atomic_read(®->session->task_running));
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687 printk("rga_service.total_running = %d\n", atomic_read(&rga_service.total_running));
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689 print_info(®->req);
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694 for (i=0; i<7; i++)
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695 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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700 if(list_empty(®->session->waiting))
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702 atomic_set(®->session->done, 1);
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703 wake_up_interruptible_sync(®->session->wait);
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706 rga_reg_deinit(reg);
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711 static void rga_mem_addr_sel(struct rga_req *req)
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713 switch(req->src.format)
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715 case RK_FORMAT_YCbCr_422_SP:
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717 case RK_FORMAT_YCbCr_422_P :
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719 case RK_FORMAT_YCbCr_420_SP :
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720 if((req->src.yrgb_addr > 0xc0000000) && (req->src.uv_addr > 0xc0000000)
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721 && (req->dst.yrgb_addr > 0xc0000000))
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723 req->src.yrgb_addr = req->src.yrgb_addr - 0x60000000;
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724 req->src.uv_addr = req->src.uv_addr - 0x60000000;
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725 req->dst.yrgb_addr = req->dst.yrgb_addr - 0x60000000;
\r
726 req->mmu_info.mmu_en = 0;
\r
727 req->mmu_info.mmu_flag &= 0xfffe;
\r
730 case RK_FORMAT_YCbCr_420_P :
\r
732 case RK_FORMAT_YCrCb_422_SP :
\r
734 case RK_FORMAT_YCrCb_422_P :
\r
736 case RK_FORMAT_YCrCb_420_SP :
\r
738 case RK_FORMAT_YCrCb_420_P :
\r
747 static int rga_blit(rga_session *session, struct rga_req *req)
\r
751 struct rga_reg *reg;
\r
752 struct rga_req *req2;
\r
754 uint32_t saw, sah, daw, dah;
\r
758 saw = req->src.act_w;
\r
759 sah = req->src.act_h;
\r
760 daw = req->dst.act_w;
\r
761 dah = req->dst.act_h;
\r
765 if((req->render_mode == bitblt_mode) && (((saw>>1) >= daw) || ((sah>>1) >= dah)))
\r
767 /* generate 2 cmd for pre scale */
\r
768 req2 = kzalloc(sizeof(struct rga_req), GFP_KERNEL);
\r
773 ret = rga_check_param(req);
\r
774 if(ret == -EINVAL) {
\r
775 printk("req 0 argument is inval\n");
\r
779 ret = RGA_gen_two_pro(req, req2);
\r
780 if(ret == -EINVAL) {
\r
784 ret = rga_check_param(req);
\r
785 if(ret == -EINVAL) {
\r
786 printk("req 1 argument is inval\n");
\r
790 ret = rga_check_param(req2);
\r
791 if(ret == -EINVAL) {
\r
792 printk("req 2 argument is inval\n");
\r
796 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 mutex_lock(&rga_service.lock);
\r
829 atomic_add(num, &rga_service.total_running);
\r
831 mutex_unlock(&rga_service.lock);
\r
845 static int rga_blit_async(rga_session *session, struct rga_req *req)
\r
850 printk("*** rga_blit_async proc ***\n");
\r
854 ret = rga_blit(session, req);
\r
859 static int rga_blit_sync(rga_session *session, struct rga_req *req)
\r
862 int ret_timeout = 0;
\r
865 printk("*** rga_blit_sync proc ***\n");
\r
870 rga_start = ktime_get();
\r
873 ret = rga_blit(session, req);
\r
875 ret_timeout = wait_event_interruptible_timeout(session->wait, atomic_read(&session->done), RGA_TIMEOUT_DELAY);
\r
877 if (unlikely(ret_timeout< 0))
\r
879 pr_err("sync pid %d wait task ret %d\n", session->pid, ret_timeout);
\r
880 mutex_lock(&rga_service.lock);
\r
881 rga_del_running_list();
\r
882 mutex_unlock(&rga_service.lock);
\r
885 else if (0 == ret_timeout)
\r
887 pr_err("sync pid %d wait %d task done timeout\n", session->pid, atomic_read(&session->task_running));
\r
888 mutex_lock(&rga_service.lock);
\r
889 rga_del_running_list_timeout();
\r
891 mutex_unlock(&rga_service.lock);
\r
896 rga_end = ktime_get();
\r
897 rga_end = ktime_sub(rga_end, rga_start);
\r
898 printk("sync one cmd end time %d\n", (int)ktime_to_us(rga_end));
\r
905 static long rga_ioctl(struct file *file, uint32_t cmd, unsigned long arg)
\r
907 struct rga_req *req;
\r
909 rga_session *session = (rga_session *)file->private_data;
\r
911 if (NULL == session)
\r
913 printk("%s [%d] rga thread session is null\n",__FUNCTION__,__LINE__);
\r
917 req = kzalloc(sizeof(struct rga_req), GFP_KERNEL);
\r
920 printk("%s [%d] get rga_req mem failed\n",__FUNCTION__,__LINE__);
\r
924 mutex_lock(&rga_service.mutex);
\r
928 case RGA_BLIT_SYNC:
\r
929 if (unlikely(copy_from_user(req, (struct rga_req*)arg, sizeof(struct rga_req))))
\r
931 ERR("copy_from_user failed\n");
\r
935 ret = rga_blit_sync(session, req);
\r
937 case RGA_BLIT_ASYNC:
\r
938 if (unlikely(copy_from_user(req, (struct rga_req*)arg, sizeof(struct rga_req))))
\r
940 ERR("copy_from_user failed\n");
\r
945 if((atomic_read(&rga_service.total_running) > 16))
\r
947 ret = rga_blit_sync(session, req);
\r
951 ret = rga_blit_async(session, req);
\r
955 ret = rga_flush(session, arg);
\r
957 case RGA_GET_RESULT:
\r
958 ret = rga_get_result(session, arg);
\r
960 case RGA_GET_VERSION:
\r
961 ret = copy_to_user((void *)arg, RGA_VERSION, sizeof(RGA_VERSION));
\r
965 ERR("unknown ioctl cmd!\n");
\r
970 mutex_unlock(&rga_service.mutex);
\r
977 static int rga_open(struct inode *inode, struct file *file)
\r
979 rga_session *session = kzalloc(sizeof(rga_session), GFP_KERNEL);
\r
980 if (NULL == session) {
\r
981 pr_err("unable to allocate memory for rga_session.");
\r
985 session->pid = current->pid;
\r
986 //printk(KERN_DEBUG "+");
\r
988 INIT_LIST_HEAD(&session->waiting);
\r
989 INIT_LIST_HEAD(&session->running);
\r
990 INIT_LIST_HEAD(&session->list_session);
\r
991 init_waitqueue_head(&session->wait);
\r
992 mutex_lock(&rga_service.lock);
\r
993 list_add_tail(&session->list_session, &rga_service.session);
\r
994 mutex_unlock(&rga_service.lock);
\r
995 atomic_set(&session->task_running, 0);
\r
996 atomic_set(&session->num_done, 0);
\r
998 file->private_data = (void *)session;
\r
1000 //DBG("*** rga dev opened by pid %d *** \n", session->pid);
\r
1001 return nonseekable_open(inode, file);
\r
1005 static int rga_release(struct inode *inode, struct file *file)
\r
1008 rga_session *session = (rga_session *)file->private_data;
\r
1009 if (NULL == session)
\r
1011 //printk(KERN_DEBUG "-");
\r
1012 task_running = atomic_read(&session->task_running);
\r
1016 pr_err("rga_service session %d still has %d task running when closing\n", session->pid, task_running);
\r
1021 wake_up_interruptible_sync(&session->wait);
\r
1022 mutex_lock(&rga_service.lock);
\r
1023 list_del(&session->list_session);
\r
1024 rga_service_session_clear(session);
\r
1026 mutex_unlock(&rga_service.lock);
\r
1028 //DBG("*** rga dev close ***\n");
\r
1032 static irqreturn_t rga_irq_thread(int irq, void *dev_id)
\r
1034 mutex_lock(&rga_service.lock);
\r
1035 if (rga_service.enable) {
\r
1036 rga_del_running_list();
\r
1037 rga_try_set_reg();
\r
1039 mutex_unlock(&rga_service.lock);
\r
1041 return IRQ_HANDLED;
\r
1044 static irqreturn_t rga_irq(int irq, void *dev_id)
\r
1047 rga_write(rga_read(RGA_INT) | (0x1<<6) | (0x1<<7) | (0x1<<4), RGA_INT);
\r
1049 return IRQ_WAKE_THREAD;
\r
1052 struct file_operations rga_fops = {
\r
1053 .owner = THIS_MODULE,
\r
1055 .release = rga_release,
\r
1056 .unlocked_ioctl = rga_ioctl,
\r
1059 static struct miscdevice rga_dev ={
\r
1060 .minor = RGA_MAJOR,
\r
1062 .fops = &rga_fops,
\r
1065 static int __devinit rga_drv_probe(struct platform_device *pdev)
\r
1067 struct rga_drvdata *data;
\r
1070 INIT_LIST_HEAD(&rga_service.waiting);
\r
1071 INIT_LIST_HEAD(&rga_service.running);
\r
1072 INIT_LIST_HEAD(&rga_service.done);
\r
1073 INIT_LIST_HEAD(&rga_service.session);
\r
1074 mutex_init(&rga_service.lock);
\r
1075 mutex_init(&rga_service.mutex);
\r
1076 atomic_set(&rga_service.total_running, 0);
\r
1077 atomic_set(&rga_service.src_format_swt, 0);
\r
1078 rga_service.last_prc_src_format = 1; /* default is yuv first*/
\r
1079 rga_service.enable = false;
\r
1081 data = kzalloc(sizeof(struct rga_drvdata), GFP_KERNEL);
\r
1084 ERR("failed to allocate driver data.\n");
\r
1088 INIT_DELAYED_WORK(&data->power_off_work, rga_power_off_work);
\r
1089 wake_lock_init(&data->wake_lock, WAKE_LOCK_SUSPEND, "rga");
\r
1091 data->pd_rga = clk_get(NULL, "pd_rga");
\r
1092 data->aclk_rga = clk_get(NULL, "aclk_rga");
\r
1093 data->hclk_rga = clk_get(NULL, "hclk_rga");
\r
1095 /* map the memory */
\r
1096 if (!request_mem_region(RK30_RGA_PHYS, RK30_RGA_SIZE, "rga_io"))
\r
1098 pr_info("failed to reserve rga HW regs\n");
\r
1101 data->rga_base = (void*)ioremap_nocache(RK30_RGA_PHYS, RK30_RGA_SIZE);
\r
1102 if (data->rga_base == NULL)
\r
1104 ERR("rga ioremap failed\n");
\r
1110 data->irq = platform_get_irq(pdev, 0);
\r
1111 if (data->irq <= 0)
\r
1113 ERR("failed to get rga irq resource (%d).\n", data->irq);
\r
1118 /* request the IRQ */
\r
1119 ret = request_threaded_irq(data->irq, rga_irq, rga_irq_thread, 0, "rga", pdev);
\r
1122 ERR("rga request_irq failed (%d).\n", ret);
\r
1126 platform_set_drvdata(pdev, data);
\r
1129 ret = misc_register(&rga_dev);
\r
1132 ERR("cannot register miscdev (%d)\n", ret);
\r
1133 goto err_misc_register;
\r
1136 pr_info("Driver loaded succesfully\n");
\r
1140 err_misc_register:
\r
1141 free_irq(data->irq, pdev);
\r
1143 iounmap(data->rga_base);
\r
1145 wake_lock_destroy(&data->wake_lock);
\r
1151 static int rga_drv_remove(struct platform_device *pdev)
\r
1153 struct rga_drvdata *data = platform_get_drvdata(pdev);
\r
1154 DBG("%s [%d]\n",__FUNCTION__,__LINE__);
\r
1156 wake_lock_destroy(&data->wake_lock);
\r
1157 misc_deregister(&(data->miscdev));
\r
1158 free_irq(data->irq, &data->miscdev);
\r
1159 iounmap((void __iomem *)(data->rga_base));
\r
1161 clk_put(data->pd_rga);
\r
1162 clk_put(data->aclk_rga);
\r
1163 clk_put(data->hclk_rga);
\r
1169 static struct platform_driver rga_driver = {
\r
1170 .probe = rga_drv_probe,
\r
1171 .remove = __devexit_p(rga_drv_remove),
\r
1173 .owner = THIS_MODULE,
\r
1179 void rga_test_0(void);
\r
1180 void rga_test_1(void);
\r
1183 static int __init rga_init(void)
\r
1186 uint32_t *mmu_buf;
\r
1190 /* malloc pre scale mid buf mmu table */
\r
1191 mmu_buf = kzalloc(1024*8, GFP_KERNEL);
\r
1192 if(mmu_buf == NULL)
\r
1194 printk(KERN_ERR "RGA get Pre Scale buff failed. \n");
\r
1198 /* malloc 8 M buf */
\r
1199 for(i=0; i<2048; i++)
\r
1201 buf_p = (uint32_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
\r
1204 printk(KERN_ERR "RGA init pre scale buf falied\n");
\r
1208 mmu_buf[i] = virt_to_phys((void *)((uint32_t)buf_p));
\r
1211 rga_service.pre_scale_buf = (uint32_t *)mmu_buf;
\r
1213 if ((ret = platform_driver_register(&rga_driver)) != 0)
\r
1215 printk(KERN_ERR "Platform device register failed (%d).\n", ret);
\r
1221 INFO("Module initialized.\n");
\r
1226 static void __exit rga_exit(void)
\r
1232 for(i=0; i<2048; i++)
\r
1234 if((uint32_t *)rga_service.pre_scale_buf[i] != NULL)
\r
1236 __free_page((void *)rga_service.pre_scale_buf[i]);
\r
1240 if(rga_service.pre_scale_buf != NULL) {
\r
1241 kfree((uint8_t *)rga_service.pre_scale_buf);
\r
1243 platform_driver_unregister(&rga_driver);
\r
1249 #include "320x240_swap0_Y4200.h"
\r
1250 #include "320x240_swap0_U4200.h"
\r
1251 #include "320x240_swap0_V4200.h"
\r
1252 #include "320x240_swap0_UV4200.h"
\r
1253 #include "320x240_swap0_ABGR8888.h"
\r
1256 extern struct fb_info * rk_get_fb(int fb_id);
\r
1257 EXPORT_SYMBOL(rk_get_fb);
\r
1259 extern void rk_direct_fb_show(struct fb_info * fbi);
\r
1260 EXPORT_SYMBOL(rk_direct_fb_show);
\r
1262 unsigned int src_buf[1920*1080];
\r
1263 unsigned int dst_buf[1920*1080];
\r
1265 void rga_test_0(void)
\r
1267 struct rga_req req;
\r
1268 rga_session session;
\r
1269 unsigned int *src, *dst;
\r
1271 struct fb_info *fb;
\r
1273 session.pid = current->pid;
\r
1274 INIT_LIST_HEAD(&session.waiting);
\r
1275 INIT_LIST_HEAD(&session.running);
\r
1276 INIT_LIST_HEAD(&session.list_session);
\r
1277 init_waitqueue_head(&session.wait);
\r
1278 /* no need to protect */
\r
1279 list_add_tail(&session.list_session, &rga_service.session);
\r
1280 atomic_set(&session.task_running, 0);
\r
1281 atomic_set(&session.num_done, 0);
\r
1282 //file->private_data = (void *)session;
\r
1284 fb = rk_get_fb(0);
\r
1286 memset(&req, 0, sizeof(struct rga_req));
\r
1287 src = Y4200_320_240_swap0;
\r
1290 //memset(src_buf, 0x80, 1920*1080*4);
\r
1292 //dmac_flush_range(&src_buf[0], &src_buf[1920*1080]);
\r
1293 //outer_flush_range(virt_to_phys(&src_buf[0]),virt_to_phys(&src_buf[1024*1024]));
\r
1296 memset(src_buf, 0x80, 800*480*4);
\r
1297 memset(dst_buf, 0xcc, 800*480*4);
\r
1299 dmac_flush_range(&dst_buf[0], &dst_buf[800*480]);
\r
1300 outer_flush_range(virt_to_phys(&dst_buf[0]),virt_to_phys(&dst_buf[800*480]));
\r
1303 req.src.act_w = 320;
\r
1304 req.src.act_h = 240;
\r
1306 req.src.vir_w = 320;
\r
1307 req.src.vir_h = 240;
\r
1308 req.src.yrgb_addr = (uint32_t)src;
\r
1309 req.src.uv_addr = (uint32_t)UV4200_320_240_swap0;
\r
1310 req.src.v_addr = (uint32_t)V4200_320_240_swap0;
\r
1311 req.src.format = RK_FORMAT_YCbCr_420_SP;
\r
1313 req.dst.act_w = 1280;
\r
1314 req.dst.act_h = 800;
\r
1316 req.dst.vir_w = 1280;
\r
1317 req.dst.vir_h = 800;
\r
1318 req.dst.x_offset = 0;
\r
1319 req.dst.y_offset = 0;
\r
1320 req.dst.yrgb_addr = (uint32_t)dst;
\r
1322 //req.dst.format = RK_FORMAT_RGB_565;
\r
1324 req.clip.xmin = 0;
\r
1325 req.clip.xmax = 1279;
\r
1326 req.clip.ymin = 0;
\r
1327 req.clip.ymax = 799;
\r
1329 //req.render_mode = color_fill_mode;
\r
1330 //req.fg_color = 0x80ffffff;
\r
1332 req.rotate_mode = 1;
\r
1333 req.scale_mode = 2;
\r
1335 //req.alpha_rop_flag = 0;
\r
1336 //req.alpha_rop_mode = 0x1;
\r
1341 req.mmu_info.mmu_flag = 0x21;
\r
1342 req.mmu_info.mmu_en = 1;
\r
1344 rga_blit_sync(&session, &req);
\r
1346 fb->var.bits_per_pixel = 32;
\r
1348 fb->var.xres = 1280;
\r
1349 fb->var.yres = 800;
\r
1351 fb->var.red.length = 8;
\r
1352 fb->var.red.offset = 0;
\r
1353 fb->var.red.msb_right = 0;
\r
1355 fb->var.green.length = 8;
\r
1356 fb->var.green.offset = 8;
\r
1357 fb->var.green.msb_right = 0;
\r
1359 fb->var.blue.length = 8;
\r
1361 fb->var.blue.offset = 16;
\r
1362 fb->var.blue.msb_right = 0;
\r
1364 fb->var.transp.length = 8;
\r
1365 fb->var.transp.offset = 24;
\r
1366 fb->var.transp.msb_right = 0;
\r
1368 fb->var.nonstd &= (~0xff);
\r
1369 fb->var.nonstd |= 1;
\r
1371 fb->fix.smem_start = virt_to_phys(dst);
\r
1373 rk_direct_fb_show(fb);
\r
1378 module_init(rga_init);
\r
1379 module_exit(rga_exit);
\r
1381 /* Module information */
\r
1382 MODULE_AUTHOR("zsq@rock-chips.com");
\r
1383 MODULE_DESCRIPTION("Driver for rga device");
\r
1384 MODULE_LICENSE("GPL");
\r