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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64 #if CONFIG_ARCH_RK2928
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65 #define RK30_RGA_PHYS 0x1010C000
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66 #define RK30_RGA_SIZE SZ_8K
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67 #define RGA_RESET_TIMEOUT 1000
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68 #elif CONFIG_ARCH_RK30
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69 #define RK30_RGA_PHYS 0x10114000
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70 #define RK30_RGA_SIZE SZ_8K
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71 #define RGA_RESET_TIMEOUT 1000
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72 #elif CONFIG_ARCH_RK31
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73 #define RK30_RGA_PHYS 0x10114000
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74 #define RK30_RGA_SIZE SZ_8K
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75 #define RGA_RESET_TIMEOUT 1000
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79 /* Driver information */
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80 #define DRIVER_DESC "RGA Device Driver"
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81 #define DRIVER_NAME "rga"
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83 #define RGA_VERSION "1.000"
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90 struct rga_drvdata {
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91 struct miscdevice miscdev;
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96 struct delayed_work power_off_work;
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97 void (*rga_irq_callback)(int rga_retval); //callback function used by aync call
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98 struct wake_lock wake_lock;
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100 struct clk *aclk_rga;
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101 struct clk *hclk_rga;
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102 struct clk *pd_rga;
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105 static struct rga_drvdata *drvdata;
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106 rga_service_info rga_service;
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108 static int rga_blit_async(rga_session *session, struct rga_req *req);
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109 static void rga_del_running_list(void);
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110 static void rga_del_running_list_timeout(void);
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111 static void rga_try_set_reg(void);
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115 #define RGA_DEBUG 0
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117 #define DBG(format, args...) printk(KERN_DEBUG "%s: " format, DRIVER_NAME, ## args)
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118 #define ERR(format, args...) printk(KERN_ERR "%s: " format, DRIVER_NAME, ## args)
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119 #define WARNING(format, args...) printk(KERN_WARN "%s: " format, DRIVER_NAME, ## args)
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120 #define INFO(format, args...) printk(KERN_INFO "%s: " format, DRIVER_NAME, ## args)
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122 #define DBG(format, args...)
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123 #define ERR(format, args...)
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124 #define WARNING(format, args...)
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125 #define INFO(format, args...)
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129 static inline void rga_write(u32 b, u32 r)
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131 __raw_writel(b, drvdata->rga_base + r);
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134 static inline u32 rga_read(u32 r)
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136 return __raw_readl(drvdata->rga_base + r);
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139 #if defined(CONFIG_ARCH_RK30) || defined(CONFIG_ARCH_RK31)
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140 static void rga_soft_reset(void)
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145 rga_write(1, RGA_SYS_CTRL); //RGA_SYS_CTRL
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147 for(i = 0; i < RGA_RESET_TIMEOUT; i++)
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149 reg = rga_read(RGA_SYS_CTRL) & 1; //RGA_SYS_CTRL
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157 if(i == RGA_RESET_TIMEOUT)
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158 ERR("soft reset timeout.\n");
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162 static void rga_dump(void)
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165 struct rga_reg *reg, *reg_tmp;
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166 rga_session *session, *session_tmp;
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168 running = atomic_read(&rga_service.total_running);
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169 printk("rga total_running %d\n", running);
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173 /* Dump waiting list info */
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174 if (!list_empty(&rga_service.waiting))
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176 next = &rga_service.waiting;
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178 printk("rga_service dump waiting list\n");
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182 reg = list_entry(next->next, struct rga_reg, status_link);
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183 running = atomic_read(®->session->task_running);
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184 num_done = atomic_read(®->session->num_done);
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185 printk("rga session pid %d, done %d, running %d\n", reg->session->pid, num_done, running);
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188 while(!list_empty(next));
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191 /* Dump running list info */
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192 if (!list_empty(&rga_service.running))
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194 printk("rga_service dump running list\n");
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196 next = &rga_service.running;
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199 reg = list_entry(next->next, struct rga_reg, status_link);
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200 running = atomic_read(®->session->task_running);
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201 num_done = atomic_read(®->session->num_done);
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202 printk("rga session pid %d, done %d, running %d:\n", reg->session->pid, num_done, running);
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205 while(!list_empty(next));
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209 list_for_each_entry_safe(session, session_tmp, &rga_service.session, list_session)
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211 printk("session pid %d:\n", session->pid);
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212 running = atomic_read(&session->task_running);
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213 printk("task_running %d\n", running);
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214 list_for_each_entry_safe(reg, reg_tmp, &session->waiting, session_link)
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216 printk("waiting register set 0x%.8x\n", (unsigned int)reg);
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218 list_for_each_entry_safe(reg, reg_tmp, &session->running, session_link)
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220 printk("running register set 0x%.8x\n", (unsigned int)reg);
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225 /* Caller must hold rga_service.lock */
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226 static void rga_power_on(void)
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228 cancel_delayed_work_sync(&drvdata->power_off_work);
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229 queue_delayed_work(system_nrt_wq, &drvdata->power_off_work, RGA_POWER_OFF_DELAY);
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230 if (rga_service.enable)
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233 clk_enable(drvdata->aclk_rga);
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234 clk_enable(drvdata->hclk_rga);
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235 clk_enable(drvdata->pd_rga);
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236 wake_lock(&drvdata->wake_lock);
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237 rga_service.enable = true;
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240 /* Caller must hold rga_service.lock */
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241 static void rga_power_off(void)
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245 if (!rga_service.enable) {
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249 total_running = atomic_read(&rga_service.total_running);
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250 if (total_running) {
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251 pr_err("power off when %d task running!!\n", total_running);
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253 pr_err("delay 50 ms for running task\n");
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257 clk_disable(drvdata->pd_rga);
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258 clk_disable(drvdata->aclk_rga);
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259 clk_disable(drvdata->hclk_rga);
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260 wake_unlock(&drvdata->wake_lock);
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261 rga_service.enable = false;
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264 static void rga_power_off_work(struct work_struct *work)
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266 mutex_lock(&rga_service.lock);
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268 mutex_unlock(&rga_service.lock);
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271 static int rga_flush(rga_session *session, unsigned long arg)
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276 #if RGA_TEST_FLUSH_TIME
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279 start = ktime_get();
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282 ret_timeout = wait_event_interruptible_timeout(session->wait, atomic_read(&session->done), RGA_TIMEOUT_DELAY);
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284 if (unlikely(ret_timeout < 0)) {
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285 pr_err("flush pid %d wait task ret %d\n", session->pid, ret);
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286 mutex_lock(&rga_service.lock);
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287 rga_del_running_list();
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288 mutex_unlock(&rga_service.lock);
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290 } else if (0 == ret_timeout) {
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291 pr_err("flush pid %d wait %d task done timeout\n", session->pid, atomic_read(&session->task_running));
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292 printk("bus = %.8x\n", rga_read(RGA_INT));
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293 mutex_lock(&rga_service.lock);
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294 rga_del_running_list_timeout();
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296 mutex_unlock(&rga_service.lock);
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300 #if RGA_TEST_FLUSH_TIME
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302 end = ktime_sub(end, start);
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303 printk("one flush wait time %d\n", (int)ktime_to_us(end));
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310 static int rga_get_result(rga_session *session, unsigned long arg)
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312 //printk("rga_get_result %d\n",drvdata->rga_result);
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318 num_done = atomic_read(&session->num_done);
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320 if (unlikely(copy_to_user((void __user *)arg, &num_done, sizeof(int)))) {
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321 printk("copy_to_user failed\n");
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322 ERR("copy_to_user failed\n");
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329 static int rga_check_param(const struct rga_req *req)
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331 /*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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332 //check src width and height
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334 if(!((req->render_mode == color_fill_mode) || (req->render_mode == line_point_drawing_mode)))
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336 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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338 ERR("invalid source resolution act_w = %d, act_h = %d\n", req->src.act_w, req->src.act_h);
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343 if(!((req->render_mode == color_fill_mode) || (req->render_mode == line_point_drawing_mode)))
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345 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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347 ERR("invalid source resolution vir_w = %d, vir_h = %d\n", req->src.vir_w, req->src.vir_h);
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352 //check dst width and height
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353 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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355 ERR("invalid destination resolution act_w = %d, act_h = %d\n", req->dst.act_w, req->dst.act_h);
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359 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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361 ERR("invalid destination resolution vir_w = %d, vir_h = %d\n", req->dst.vir_w, req->dst.vir_h);
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366 if(unlikely(req->src.vir_w < req->src.act_w)){
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367 ERR("invalid src_vir_w act_w = %d, vir_w = %d\n", req->src.act_w, req->src.vir_w);
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372 if(unlikely(req->dst.vir_w < req->dst.act_w)){
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373 ERR("invalid dst_vir_w act_h = %d, vir_h = %d\n", req->dst.act_w, req->dst.vir_w);
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380 static void rga_copy_reg(struct rga_reg *reg, uint32_t offset)
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386 if(atomic_read(®->session->task_running) != 0)
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388 printk(KERN_ERR "task_running is no zero\n");
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391 atomic_add(1, &rga_service.cmd_num);
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392 atomic_add(1, ®->session->task_running);
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394 cmd_buf = (uint32_t *)rga_service.cmd_buff + offset*28;
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395 reg_p = (uint32_t *)reg->cmd_reg;
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397 for(i=0; i<28; i++)
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399 cmd_buf[i] = reg_p[i];
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406 static struct rga_reg * rga_reg_init(rga_session *session, struct rga_req *req)
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409 struct rga_reg *reg = kzalloc(sizeof(struct rga_reg), GFP_KERNEL);
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411 pr_err("kmalloc fail in rga_reg_init\n");
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415 reg->session = session;
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416 INIT_LIST_HEAD(®->session_link);
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417 INIT_LIST_HEAD(®->status_link);
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419 //memcpy(®->req, req, sizeof(struct rga_req));
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421 reg->MMU_base = NULL;
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423 if (req->mmu_info.mmu_en)
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425 ret = rga_set_mmu_info(reg, req);
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428 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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437 if(RGA_gen_reg_info(req, (uint8_t *)reg->cmd_reg) == -1)
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439 printk("gen reg info error\n");
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447 mutex_lock(&rga_service.lock);
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448 list_add_tail(®->status_link, &rga_service.waiting);
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449 list_add_tail(®->session_link, &session->waiting);
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450 mutex_unlock(&rga_service.lock);
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455 static struct rga_reg * rga_reg_init_2(rga_session *session, struct rga_req *req0, struct rga_req *req1)
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459 struct rga_reg *reg0, *reg1;
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466 reg0 = kzalloc(sizeof(struct rga_reg), GFP_KERNEL);
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467 if (NULL == reg0) {
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468 pr_err("%s [%d] kmalloc fail in rga_reg_init\n", __FUNCTION__, __LINE__);
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472 reg1 = kzalloc(sizeof(struct rga_reg), GFP_KERNEL);
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473 if (NULL == reg1) {
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474 pr_err("%s [%d] kmalloc fail in rga_reg_init\n", __FUNCTION__, __LINE__);
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478 reg0->session = session;
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479 INIT_LIST_HEAD(®0->session_link);
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480 INIT_LIST_HEAD(®0->status_link);
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482 reg1->session = session;
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483 INIT_LIST_HEAD(®1->session_link);
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484 INIT_LIST_HEAD(®1->status_link);
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486 //memcpy(®0->req, req0, sizeof(struct rga_req));
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487 //memcpy(®1->req, req1, sizeof(struct rga_req));
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489 if(req0->mmu_info.mmu_en)
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491 ret = rga_set_mmu_info(reg0, req0);
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493 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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498 RGA_gen_reg_info(req0, (uint8_t *)reg0->cmd_reg);
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500 if(req1->mmu_info.mmu_en)
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502 ret = rga_set_mmu_info(reg1, req1);
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504 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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509 RGA_gen_reg_info(req1, (uint8_t *)reg1->cmd_reg);
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511 mutex_lock(&rga_service.lock);
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512 list_add_tail(®0->status_link, &rga_service.waiting);
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513 list_add_tail(®0->session_link, &session->waiting);
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514 list_add_tail(®1->status_link, &rga_service.waiting);
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515 list_add_tail(®1->session_link, &session->waiting);
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516 mutex_unlock(&rga_service.lock);
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533 /* Caller must hold rga_service.lock */
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534 static void rga_reg_deinit(struct rga_reg *reg)
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536 list_del_init(®->session_link);
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537 list_del_init(®->status_link);
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541 /* Caller must hold rga_service.lock */
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542 static void rga_reg_from_wait_to_run(struct rga_reg *reg)
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544 list_del_init(®->status_link);
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545 list_add_tail(®->status_link, &rga_service.running);
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547 list_del_init(®->session_link);
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548 list_add_tail(®->session_link, ®->session->running);
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551 /* Caller must hold rga_service.lock */
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552 static void rga_service_session_clear(rga_session *session)
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554 struct rga_reg *reg, *n;
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556 list_for_each_entry_safe(reg, n, &session->waiting, session_link)
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558 rga_reg_deinit(reg);
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561 list_for_each_entry_safe(reg, n, &session->running, session_link)
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563 rga_reg_deinit(reg);
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567 /* Caller must hold rga_service.lock */
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568 static void rga_try_set_reg(void)
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570 struct rga_reg *reg ;
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572 if (list_empty(&rga_service.running))
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574 if (!list_empty(&rga_service.waiting))
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577 reg = list_entry(rga_service.waiting.next, struct rga_reg, status_link);
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582 rga_copy_reg(reg, 0);
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583 rga_reg_from_wait_to_run(reg);
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585 dmac_flush_range(&rga_service.cmd_buff[0], &rga_service.cmd_buff[28]);
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586 outer_flush_range(virt_to_phys(&rga_service.cmd_buff[0]),virt_to_phys(&rga_service.cmd_buff[28]));
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588 #if defined(CONFIG_ARCH_RK30)
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590 #elif defined(CONFIG_ARCH_RK31)
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594 rga_write(0, RGA_MMU_CTRL);
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597 rga_write(virt_to_phys(rga_service.cmd_buff), RGA_CMD_ADDR);
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601 //printk(KERN_DEBUG "cmd_addr = %.8x\n", rga_read(RGA_CMD_ADDR));
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604 p = rga_service.cmd_buff;
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605 printk(KERN_DEBUG "CMD_REG\n");
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606 for (i=0; i<7; i++)
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607 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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611 rga_write((0x1<<2)|(0x1<<3), RGA_SYS_CTRL);
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613 /* All CMD finish int */
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614 rga_write(rga_read(RGA_INT)|(0x1<<10)|(0x1<<8), RGA_INT);
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617 atomic_set(®->session->done, 0);
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618 rga_write(0x1, RGA_CMD_CTRL);
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623 printk(KERN_DEBUG "CMD_READ_BACK_REG\n");
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624 for (i=0; i<7; i++)
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625 printk(KERN_DEBUG "%.8x %.8x %.8x %.8x\n", rga_read(0x100 + i*16 + 0),
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626 rga_read(0x100 + i*16 + 4), rga_read(0x100 + i*16 + 8), rga_read(0x100 + i*16 + 12));
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632 // rga_power_off();
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639 static void print_info(struct rga_req *req)
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641 printk("src.yrgb_addr = %.8x, src.uv_addr = %.8x, src.v_addr = %.8x\n",
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642 req->src.yrgb_addr, req->src.uv_addr, req->src.v_addr);
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643 printk("src : act_w = %d, act_h = %d, vir_w = %d, vir_h = %d\n",
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644 req->src.act_w, req->src.act_h, req->src.vir_w, req->src.vir_h);
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645 printk("src : x_offset = %.8x y_offset = %.8x\n", req->src.x_offset, req->src.y_offset);
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647 printk("dst.yrgb_addr = %.8x, dst.uv_addr = %.8x, dst.v_addr = %.8x\n",
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648 req->dst.yrgb_addr, req->dst.uv_addr, req->dst.v_addr);
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649 printk("dst : x_offset = %.8x y_offset = %.8x\n", req->dst.x_offset, req->dst.y_offset);
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650 printk("dst : act_w = %d, act_h = %d, vir_w = %d, vir_h = %d\n",
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651 req->dst.act_w, req->dst.act_h, req->dst.vir_w, req->dst.vir_h);
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653 printk("clip.xmin = %d, clip.xmax = %d. clip.ymin = %d, clip.ymax = %d\n",
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654 req->clip.xmin, req->clip.xmax, req->clip.ymin, req->clip.ymax);
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658 /* Caller must hold rga_service.lock */
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659 static void rga_del_running_list(void)
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661 struct rga_reg *reg;
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663 while(!list_empty(&rga_service.running))
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665 reg = list_entry(rga_service.running.next, struct rga_reg, status_link);
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667 if(reg->MMU_base != NULL)
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669 kfree(reg->MMU_base);
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670 reg->MMU_base = NULL;
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672 atomic_sub(1, ®->session->task_running);
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673 atomic_sub(1, &rga_service.total_running);
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675 if(list_empty(®->session->waiting))
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677 atomic_set(®->session->done, 1);
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678 wake_up_interruptible_sync(®->session->wait);
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681 rga_reg_deinit(reg);
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685 /* Caller must hold rga_service.lock */
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686 static void rga_del_running_list_timeout(void)
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688 struct rga_reg *reg;
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690 while(!list_empty(&rga_service.running))
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692 reg = list_entry(rga_service.running.next, struct rga_reg, status_link);
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694 if(reg->MMU_base != NULL)
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696 kfree(reg->MMU_base);
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699 atomic_sub(1, ®->session->task_running);
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700 atomic_sub(1, &rga_service.total_running);
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704 printk("RGA_INT is %.8x\n", rga_read(RGA_INT));
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705 printk("reg->session->task_running = %d\n", atomic_read(®->session->task_running));
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706 printk("rga_service.total_running = %d\n", atomic_read(&rga_service.total_running));
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708 print_info(®->req);
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713 for (i=0; i<7; i++)
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714 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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719 if(list_empty(®->session->waiting))
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721 atomic_set(®->session->done, 1);
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722 wake_up_interruptible_sync(®->session->wait);
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725 rga_reg_deinit(reg);
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730 static void rga_mem_addr_sel(struct rga_req *req)
\r
732 switch(req->src.format)
\r
734 case RK_FORMAT_YCbCr_422_SP:
\r
736 case RK_FORMAT_YCbCr_422_P :
\r
738 case RK_FORMAT_YCbCr_420_SP :
\r
739 if((req->src.yrgb_addr > 0xc0000000) && (req->src.uv_addr > 0xc0000000)
\r
740 && (req->dst.yrgb_addr > 0xc0000000))
\r
742 req->src.yrgb_addr = req->src.yrgb_addr - 0x60000000;
\r
743 req->src.uv_addr = req->src.uv_addr - 0x60000000;
\r
744 req->dst.yrgb_addr = req->dst.yrgb_addr - 0x60000000;
\r
745 req->mmu_info.mmu_en = 0;
\r
746 req->mmu_info.mmu_flag &= 0xfffe;
\r
749 case RK_FORMAT_YCbCr_420_P :
\r
751 case RK_FORMAT_YCrCb_422_SP :
\r
753 case RK_FORMAT_YCrCb_422_P :
\r
755 case RK_FORMAT_YCrCb_420_SP :
\r
757 case RK_FORMAT_YCrCb_420_P :
\r
766 static int rga_blit(rga_session *session, struct rga_req *req)
\r
770 struct rga_reg *reg;
\r
771 struct rga_req *req2;
\r
773 uint32_t saw, sah, daw, dah;
\r
777 saw = req->src.act_w;
\r
778 sah = req->src.act_h;
\r
779 daw = req->dst.act_w;
\r
780 dah = req->dst.act_h;
\r
784 if((req->render_mode == bitblt_mode) && (((saw>>1) >= daw) || ((sah>>1) >= dah)))
\r
786 /* generate 2 cmd for pre scale */
\r
787 req2 = kzalloc(sizeof(struct rga_req), GFP_KERNEL);
\r
792 ret = rga_check_param(req);
\r
793 if(ret == -EINVAL) {
\r
794 printk("req 0 argument is inval\n");
\r
798 ret = RGA_gen_two_pro(req, req2);
\r
799 if(ret == -EINVAL) {
\r
803 ret = rga_check_param(req);
\r
804 if(ret == -EINVAL) {
\r
805 printk("req 1 argument is inval\n");
\r
809 ret = rga_check_param(req2);
\r
810 if(ret == -EINVAL) {
\r
811 printk("req 2 argument is inval\n");
\r
815 reg = rga_reg_init_2(session, req, req2);
\r
828 /* check value if legal */
\r
829 ret = rga_check_param(req);
\r
830 if(ret == -EINVAL) {
\r
831 printk("req argument is inval\n");
\r
835 if(req->render_mode == bitblt_mode)
\r
837 rga_mem_addr_sel(req);
\r
840 reg = rga_reg_init(session, req);
\r
847 mutex_lock(&rga_service.lock);
\r
848 atomic_add(num, &rga_service.total_running);
\r
850 mutex_unlock(&rga_service.lock);
\r
864 static int rga_blit_async(rga_session *session, struct rga_req *req)
\r
869 printk("*** rga_blit_async proc ***\n");
\r
873 ret = rga_blit(session, req);
\r
878 static int rga_blit_sync(rga_session *session, struct rga_req *req)
\r
881 int ret_timeout = 0;
\r
884 printk("*** rga_blit_sync proc ***\n");
\r
889 rga_start = ktime_get();
\r
892 ret = rga_blit(session, req);
\r
894 ret_timeout = wait_event_interruptible_timeout(session->wait, atomic_read(&session->done), RGA_TIMEOUT_DELAY);
\r
896 if (unlikely(ret_timeout< 0))
\r
898 pr_err("sync pid %d wait task ret %d\n", session->pid, ret_timeout);
\r
899 mutex_lock(&rga_service.lock);
\r
900 rga_del_running_list();
\r
901 mutex_unlock(&rga_service.lock);
\r
904 else if (0 == ret_timeout)
\r
906 pr_err("sync pid %d wait %d task done timeout\n", session->pid, atomic_read(&session->task_running));
\r
907 mutex_lock(&rga_service.lock);
\r
908 rga_del_running_list_timeout();
\r
910 mutex_unlock(&rga_service.lock);
\r
915 rga_end = ktime_get();
\r
916 rga_end = ktime_sub(rga_end, rga_start);
\r
917 printk("sync one cmd end time %d\n", (int)ktime_to_us(rga_end));
\r
924 static long rga_ioctl(struct file *file, uint32_t cmd, unsigned long arg)
\r
926 struct rga_req *req;
\r
928 rga_session *session = (rga_session *)file->private_data;
\r
930 if (NULL == session)
\r
932 printk("%s [%d] rga thread session is null\n",__FUNCTION__,__LINE__);
\r
936 req = kzalloc(sizeof(struct rga_req), GFP_KERNEL);
\r
939 printk("%s [%d] get rga_req mem failed\n",__FUNCTION__,__LINE__);
\r
943 mutex_lock(&rga_service.mutex);
\r
947 case RGA_BLIT_SYNC:
\r
948 if (unlikely(copy_from_user(req, (struct rga_req*)arg, sizeof(struct rga_req))))
\r
950 ERR("copy_from_user failed\n");
\r
954 ret = rga_blit_sync(session, req);
\r
956 case RGA_BLIT_ASYNC:
\r
957 if (unlikely(copy_from_user(req, (struct rga_req*)arg, sizeof(struct rga_req))))
\r
959 ERR("copy_from_user failed\n");
\r
964 if((atomic_read(&rga_service.total_running) > 16))
\r
966 ret = rga_blit_sync(session, req);
\r
970 ret = rga_blit_async(session, req);
\r
974 ret = rga_flush(session, arg);
\r
976 case RGA_GET_RESULT:
\r
977 ret = rga_get_result(session, arg);
\r
979 case RGA_GET_VERSION:
\r
980 ret = copy_to_user((void *)arg, RGA_VERSION, sizeof(RGA_VERSION));
\r
984 ERR("unknown ioctl cmd!\n");
\r
989 mutex_unlock(&rga_service.mutex);
\r
996 static int rga_open(struct inode *inode, struct file *file)
\r
998 rga_session *session = kzalloc(sizeof(rga_session), GFP_KERNEL);
\r
999 if (NULL == session) {
\r
1000 pr_err("unable to allocate memory for rga_session.");
\r
1004 session->pid = current->pid;
\r
1005 //printk(KERN_DEBUG "+");
\r
1007 INIT_LIST_HEAD(&session->waiting);
\r
1008 INIT_LIST_HEAD(&session->running);
\r
1009 INIT_LIST_HEAD(&session->list_session);
\r
1010 init_waitqueue_head(&session->wait);
\r
1011 mutex_lock(&rga_service.lock);
\r
1012 list_add_tail(&session->list_session, &rga_service.session);
\r
1013 mutex_unlock(&rga_service.lock);
\r
1014 atomic_set(&session->task_running, 0);
\r
1015 atomic_set(&session->num_done, 0);
\r
1017 file->private_data = (void *)session;
\r
1019 //DBG("*** rga dev opened by pid %d *** \n", session->pid);
\r
1020 return nonseekable_open(inode, file);
\r
1024 static int rga_release(struct inode *inode, struct file *file)
\r
1027 rga_session *session = (rga_session *)file->private_data;
\r
1028 if (NULL == session)
\r
1030 //printk(KERN_DEBUG "-");
\r
1031 task_running = atomic_read(&session->task_running);
\r
1035 pr_err("rga_service session %d still has %d task running when closing\n", session->pid, task_running);
\r
1040 wake_up_interruptible_sync(&session->wait);
\r
1041 mutex_lock(&rga_service.lock);
\r
1042 list_del(&session->list_session);
\r
1043 rga_service_session_clear(session);
\r
1045 mutex_unlock(&rga_service.lock);
\r
1047 //DBG("*** rga dev close ***\n");
\r
1051 static irqreturn_t rga_irq_thread(int irq, void *dev_id)
\r
1053 mutex_lock(&rga_service.lock);
\r
1054 if (rga_service.enable) {
\r
1055 rga_del_running_list();
\r
1056 rga_try_set_reg();
\r
1058 printk("****** rga irq prc avil ******\n");
\r
1059 mutex_unlock(&rga_service.lock);
\r
1061 return IRQ_HANDLED;
\r
1064 static irqreturn_t rga_irq(int irq, void *dev_id)
\r
1067 rga_write(rga_read(RGA_INT) | (0x1<<6) | (0x1<<7) | (0x1<<4), RGA_INT);
\r
1069 return IRQ_WAKE_THREAD;
\r
1072 struct file_operations rga_fops = {
\r
1073 .owner = THIS_MODULE,
\r
1075 .release = rga_release,
\r
1076 .unlocked_ioctl = rga_ioctl,
\r
1079 static struct miscdevice rga_dev ={
\r
1080 .minor = RGA_MAJOR,
\r
1082 .fops = &rga_fops,
\r
1085 static int __devinit rga_drv_probe(struct platform_device *pdev)
\r
1087 struct rga_drvdata *data;
\r
1090 INIT_LIST_HEAD(&rga_service.waiting);
\r
1091 INIT_LIST_HEAD(&rga_service.running);
\r
1092 INIT_LIST_HEAD(&rga_service.done);
\r
1093 INIT_LIST_HEAD(&rga_service.session);
\r
1094 mutex_init(&rga_service.lock);
\r
1095 mutex_init(&rga_service.mutex);
\r
1096 atomic_set(&rga_service.total_running, 0);
\r
1097 atomic_set(&rga_service.src_format_swt, 0);
\r
1098 rga_service.last_prc_src_format = 1; /* default is yuv first*/
\r
1099 rga_service.enable = false;
\r
1101 printk("rga_drv_probe\n");
\r
1103 data = kzalloc(sizeof(struct rga_drvdata), GFP_KERNEL);
\r
1106 ERR("failed to allocate driver data.\n");
\r
1110 INIT_DELAYED_WORK(&data->power_off_work, rga_power_off_work);
\r
1111 wake_lock_init(&data->wake_lock, WAKE_LOCK_SUSPEND, "rga");
\r
1113 data->pd_rga = clk_get(NULL, "pd_rga");
\r
1114 data->aclk_rga = clk_get(NULL, "aclk_rga");
\r
1115 data->hclk_rga = clk_get(NULL, "hclk_rga");
\r
1118 /* map the memory */
\r
1119 #if defined(CONFIG_ARCH_RK2928)
\r
1120 if (!request_mem_region(RK2928_RGA_PHYS, RK2928_RGA_SIZE, "rga_io"))
\r
1121 #elif defined(CONFIG_ARCH_RK30)
\r
1122 if (!request_mem_region(RK30_RGA_PHYS, RK30_RGA_SIZE, "rga_io"))
\r
1123 #elif defined(CONFIG_ARCH_RK31)
\r
1124 if (!request_mem_region(RK30_RGA_PHYS, RK30_RGA_SIZE, "rga_io"))
\r
1127 pr_info("failed to reserve rga HW regs\n");
\r
1131 #if defined(CONFIG_ARCH_RK2928)
\r
1132 data->rga_base = (void*)ioremap_nocache(RK2928_RGA_PHYS, RK2928_RGA_SIZE);
\r
1133 #elif defined(CONFIG_ARCH_RK30)
\r
1134 data->rga_base = (void*)ioremap_nocache(RK30_RGA_PHYS, RK30_RGA_SIZE);
\r
1135 #elif defined(CONFIG_ARCH_RK31)
\r
1136 data->rga_base = (void*)ioremap_nocache(RK30_RGA_PHYS, RK30_RGA_SIZE);
\r
1138 if (data->rga_base == NULL)
\r
1140 ERR("rga ioremap failed\n");
\r
1146 data->irq = platform_get_irq(pdev, 0);
\r
1147 if (data->irq <= 0)
\r
1149 ERR("failed to get rga irq resource (%d).\n", data->irq);
\r
1154 /* request the IRQ */
\r
1155 ret = request_threaded_irq(data->irq, rga_irq, rga_irq_thread, 0, "rga", pdev);
\r
1158 ERR("rga request_irq failed (%d).\n", ret);
\r
1162 platform_set_drvdata(pdev, data);
\r
1165 ret = misc_register(&rga_dev);
\r
1168 ERR("cannot register miscdev (%d)\n", ret);
\r
1169 goto err_misc_register;
\r
1172 pr_info("Driver loaded succesfully\n");
\r
1176 err_misc_register:
\r
1177 free_irq(data->irq, pdev);
\r
1179 iounmap(data->rga_base);
\r
1181 wake_lock_destroy(&data->wake_lock);
\r
1187 static int rga_drv_remove(struct platform_device *pdev)
\r
1189 struct rga_drvdata *data = platform_get_drvdata(pdev);
\r
1190 DBG("%s [%d]\n",__FUNCTION__,__LINE__);
\r
1192 wake_lock_destroy(&data->wake_lock);
\r
1193 misc_deregister(&(data->miscdev));
\r
1194 free_irq(data->irq, &data->miscdev);
\r
1195 iounmap((void __iomem *)(data->rga_base));
\r
1197 clk_put(data->pd_rga);
\r
1198 clk_put(data->aclk_rga);
\r
1199 clk_put(data->hclk_rga);
\r
1205 static struct platform_driver rga_driver = {
\r
1206 .probe = rga_drv_probe,
\r
1207 .remove = __devexit_p(rga_drv_remove),
\r
1209 .owner = THIS_MODULE,
\r
1215 void rga_test_0(void);
\r
1216 void rga_test_1(void);
\r
1219 static int __init rga_init(void)
\r
1222 uint32_t *mmu_buf;
\r
1226 /* malloc pre scale mid buf mmu table */
\r
1227 mmu_buf = kzalloc(1024*8, GFP_KERNEL);
\r
1228 if(mmu_buf == NULL)
\r
1230 printk(KERN_ERR "RGA get Pre Scale buff failed. \n");
\r
1234 /* malloc 8 M buf */
\r
1235 for(i=0; i<2048; i++)
\r
1237 buf_p = (uint32_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
\r
1240 printk(KERN_ERR "RGA init pre scale buf falied\n");
\r
1244 mmu_buf[i] = virt_to_phys((void *)((uint32_t)buf_p));
\r
1247 rga_service.pre_scale_buf = (uint32_t *)mmu_buf;
\r
1249 if ((ret = platform_driver_register(&rga_driver)) != 0)
\r
1251 printk(KERN_ERR "Platform device register failed (%d).\n", ret);
\r
1257 INFO("Module initialized.\n");
\r
1262 static void __exit rga_exit(void)
\r
1268 for(i=0; i<2048; i++)
\r
1270 if((uint32_t *)rga_service.pre_scale_buf[i] != NULL)
\r
1272 __free_page((void *)rga_service.pre_scale_buf[i]);
\r
1276 if(rga_service.pre_scale_buf != NULL) {
\r
1277 kfree((uint8_t *)rga_service.pre_scale_buf);
\r
1279 platform_driver_unregister(&rga_driver);
\r
1286 extern struct fb_info * rk_get_fb(int fb_id);
\r
1287 EXPORT_SYMBOL(rk_get_fb);
\r
1289 extern void rk_direct_fb_show(struct fb_info * fbi);
\r
1290 EXPORT_SYMBOL(rk_direct_fb_show);
\r
1294 unsigned int src_buf[1920*1080];
\r
1295 unsigned int dst_buf[1920*1080];
\r
1297 void rga_test_0(void)
\r
1299 struct rga_req req;
\r
1300 rga_session session;
\r
1301 unsigned int *src, *dst;
\r
1303 struct fb_info *fb;
\r
1305 session.pid = current->pid;
\r
1306 INIT_LIST_HEAD(&session.waiting);
\r
1307 INIT_LIST_HEAD(&session.running);
\r
1308 INIT_LIST_HEAD(&session.list_session);
\r
1309 init_waitqueue_head(&session.wait);
\r
1310 /* no need to protect */
\r
1311 list_add_tail(&session.list_session, &rga_service.session);
\r
1312 atomic_set(&session.task_running, 0);
\r
1313 atomic_set(&session.num_done, 0);
\r
1314 //file->private_data = (void *)session;
\r
1316 fb = rk_get_fb(0);
\r
1318 memset(&req, 0, sizeof(struct rga_req));
\r
1322 memset(src_buf, 0xff, 1920*1080*4);
\r
1324 dmac_flush_range(&src_buf[0], &src_buf[1920*1080]);
\r
1325 outer_flush_range(virt_to_phys(&src_buf[0]),virt_to_phys(&src_buf[1024*1024]));
\r
1328 memset(src_buf, 0x80, 800*480*4);
\r
1329 memset(dst_buf, 0xcc, 800*480*4);
\r
1331 dmac_flush_range(&dst_buf[0], &dst_buf[800*480]);
\r
1332 outer_flush_range(virt_to_phys(&dst_buf[0]),virt_to_phys(&dst_buf[800*480]));
\r
1335 req.src.act_w = 320;
\r
1336 req.src.act_h = 240;
\r
1338 req.src.vir_w = 320;
\r
1339 req.src.vir_h = 240;
\r
1340 req.src.yrgb_addr = (uint32_t)virt_to_phys(src);
\r
1341 req.src.uv_addr = (uint32_t)virt_to_phys(src);
\r
1342 req.src.v_addr = (uint32_t)virt_to_phys(src);
\r
1343 req.src.format = 0;
\r
1345 req.dst.act_w = 320;
\r
1346 req.dst.act_h = 240;
\r
1348 req.dst.vir_w = 800;
\r
1349 req.dst.vir_h = 480;
\r
1350 req.dst.x_offset = 0;
\r
1351 req.dst.y_offset = 0;
\r
1352 req.dst.yrgb_addr = (uint32_t)virt_to_phys(dst);
\r
1354 //req.dst.format = RK_FORMAT_RGB_565;
\r
1356 req.clip.xmin = 0;
\r
1357 req.clip.xmax = 799;
\r
1358 req.clip.ymin = 0;
\r
1359 req.clip.ymax = 479;
\r
1361 //req.render_mode = color_fill_mode;
\r
1362 //req.fg_color = 0x80ffffff;
\r
1364 //req.rotate_mode = 1;
\r
1365 //req.scale_mode = 2;
\r
1367 //req.alpha_rop_flag = 0;
\r
1368 //req.alpha_rop_mode = 0x1;
\r
1373 //req.mmu_info.mmu_flag = 0x21;
\r
1374 //req.mmu_info.mmu_en = 1;
\r
1376 rga_blit_sync(&session, &req);
\r
1379 fb->var.bits_per_pixel = 32;
\r
1381 fb->var.xres = 800;
\r
1382 fb->var.yres = 480;
\r
1384 fb->var.red.length = 8;
\r
1385 fb->var.red.offset = 0;
\r
1386 fb->var.red.msb_right = 0;
\r
1388 fb->var.green.length = 8;
\r
1389 fb->var.green.offset = 8;
\r
1390 fb->var.green.msb_right = 0;
\r
1392 fb->var.blue.length = 8;
\r
1394 fb->var.blue.offset = 16;
\r
1395 fb->var.blue.msb_right = 0;
\r
1397 fb->var.transp.length = 8;
\r
1398 fb->var.transp.offset = 24;
\r
1399 fb->var.transp.msb_right = 0;
\r
1401 fb->var.nonstd &= (~0xff);
\r
1402 fb->var.nonstd |= 1;
\r
1404 fb->fix.smem_start = virt_to_phys(dst);
\r
1406 rk_direct_fb_show(fb);
\r
1412 module_init(rga_init);
\r
1413 module_exit(rga_exit);
\r
1415 /* Module information */
\r
1416 MODULE_AUTHOR("zsq@rock-chips.com");
\r
1417 MODULE_DESCRIPTION("Driver for rga device");
\r
1418 MODULE_LICENSE("GPL");
\r