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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51 #define RGA_TEST_CASE 0
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54 #define RGA_TEST_TIME 0
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55 #define RGA_TEST_FLUSH_TIME 0
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56 #define RGA_INFO_BUS_ERROR 1
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58 #define PRE_SCALE_BUF_SIZE 2048*1024*4
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60 #define RGA_POWER_OFF_DELAY 4*HZ /* 4s */
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61 #define RGA_TIMEOUT_DELAY 2*HZ /* 2s */
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63 #define RGA_MAJOR 255
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65 #if defined(CONFIG_ARCH_RK2928) || defined(CONFIG_ARCH_RK3026)
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66 #define RK30_RGA_PHYS RK2928_RGA_PHYS
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67 #define RK30_RGA_SIZE RK2928_RGA_SIZE
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69 #define RGA_RESET_TIMEOUT 1000
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71 /* Driver information */
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72 #define DRIVER_DESC "RGA Device Driver"
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73 #define DRIVER_NAME "rga"
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75 #define RGA_VERSION "1.003"
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80 rga_session rga_session_global;
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82 struct rga_drvdata {
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83 struct miscdevice miscdev;
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88 struct delayed_work power_off_work;
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89 void (*rga_irq_callback)(int rga_retval); //callback function used by aync call
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90 struct wake_lock wake_lock;
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92 struct clk *aclk_rga;
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93 struct clk *hclk_rga;
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97 static struct rga_drvdata *drvdata;
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98 rga_service_info rga_service;
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100 static int rga_blit_async(rga_session *session, struct rga_req *req);
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101 static void rga_del_running_list(void);
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102 static void rga_del_running_list_timeout(void);
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103 static void rga_try_set_reg(void);
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107 #define RGA_DEBUG 0
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109 #define DBG(format, args...) printk(KERN_DEBUG "%s: " format, DRIVER_NAME, ## args)
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110 #define ERR(format, args...) printk(KERN_ERR "%s: " format, DRIVER_NAME, ## args)
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111 #define WARNING(format, args...) printk(KERN_WARN "%s: " format, DRIVER_NAME, ## args)
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112 #define INFO(format, args...) printk(KERN_INFO "%s: " format, DRIVER_NAME, ## args)
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114 #define DBG(format, args...)
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115 #define ERR(format, args...)
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116 #define WARNING(format, args...)
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117 #define INFO(format, args...)
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121 static void print_info(struct rga_req *req)
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123 printk("src : yrgb_addr = %.8x, src.uv_addr = %.8x, src.v_addr = %.8x, format = %d\n",
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124 req->src.yrgb_addr, req->src.uv_addr, req->src.v_addr, req->src.format);
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125 printk("src : act_w = %d, act_h = %d, vir_w = %d, vir_h = %d\n",
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126 req->src.act_w, req->src.act_h, req->src.vir_w, req->src.vir_h);
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127 printk("src : x_off = %.8x y_off = %.8x\n", req->src.x_offset, req->src.y_offset);
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129 printk("dst : yrgb_addr = %.8x, dst.uv_addr = %.8x, dst.v_addr = %.8x\n",
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130 req->dst.yrgb_addr, req->dst.uv_addr, req->dst.v_addr);
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131 printk("dst : x_off = %.8x y_off = %.8x\n", req->dst.x_offset, req->dst.y_offset);
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132 printk("dst : act_w = %d, act_h = %d, vir_w = %d, vir_h = %d\n",
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133 req->dst.act_w, req->dst.act_h, req->dst.vir_w, req->dst.vir_h);
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135 printk("clip.xmin = %d, clip.xmax = %d. clip.ymin = %d, clip.ymax = %d\n",
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136 req->clip.xmin, req->clip.xmax, req->clip.ymin, req->clip.ymax);
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138 //printk("alpha_rop_flag = %.8x\n", req->alpha_rop_flag);
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139 //printk("alpha_rop_mode = %.8x\n", req->alpha_rop_mode);
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140 //printk("PD_mode = %.8x\n", req->PD_mode);
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145 static inline void rga_write(u32 b, u32 r)
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147 __raw_writel(b, drvdata->rga_base + r);
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150 static inline u32 rga_read(u32 r)
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152 return __raw_readl(drvdata->rga_base + r);
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155 static void rga_soft_reset(void)
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160 rga_write(1, RGA_SYS_CTRL); //RGA_SYS_CTRL
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162 for(i = 0; i < RGA_RESET_TIMEOUT; i++)
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164 reg = rga_read(RGA_SYS_CTRL) & 1; //RGA_SYS_CTRL
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172 if(i == RGA_RESET_TIMEOUT)
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173 ERR("soft reset timeout.\n");
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176 static void rga_dump(void)
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179 struct rga_reg *reg, *reg_tmp;
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180 rga_session *session, *session_tmp;
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182 running = atomic_read(&rga_service.total_running);
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183 printk("rga total_running %d\n", running);
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187 /* Dump waiting list info */
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188 if (!list_empty(&rga_service.waiting))
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192 next = &rga_service.waiting;
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194 printk("rga_service dump waiting list\n");
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198 reg = list_entry(next->next, struct rga_reg, status_link);
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199 running = atomic_read(®->session->task_running);
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200 num_done = atomic_read(®->session->num_done);
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201 printk("rga session pid %d, done %d, running %d\n", reg->session->pid, num_done, running);
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204 while(!list_empty(next));
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207 /* Dump running list info */
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208 if (!list_empty(&rga_service.running))
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210 printk("rga_service dump running list\n");
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214 next = &rga_service.running;
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217 reg = list_entry(next->next, struct rga_reg, status_link);
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218 running = atomic_read(®->session->task_running);
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219 num_done = atomic_read(®->session->num_done);
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220 printk("rga session pid %d, done %d, running %d:\n", reg->session->pid, num_done, running);
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223 while(!list_empty(next));
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227 list_for_each_entry_safe(session, session_tmp, &rga_service.session, list_session)
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229 printk("session pid %d:\n", session->pid);
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230 running = atomic_read(&session->task_running);
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231 printk("task_running %d\n", running);
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232 list_for_each_entry_safe(reg, reg_tmp, &session->waiting, session_link)
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234 printk("waiting register set 0x%.8x\n", (unsigned int)reg);
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236 list_for_each_entry_safe(reg, reg_tmp, &session->running, session_link)
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238 printk("running register set 0x%.8x\n", (unsigned int)reg);
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243 static inline void rga_queue_power_off_work(void)
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245 queue_delayed_work(system_nrt_wq, &drvdata->power_off_work, RGA_POWER_OFF_DELAY);
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248 /* Caller must hold rga_service.lock */
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249 static void rga_power_on(void)
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251 static ktime_t last;
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252 ktime_t now = ktime_get();
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254 if (ktime_to_ns(ktime_sub(now, last)) > NSEC_PER_SEC) {
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255 cancel_delayed_work_sync(&drvdata->power_off_work);
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256 rga_queue_power_off_work();
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259 if (rga_service.enable)
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262 clk_enable(drvdata->aclk_rga);
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263 clk_enable(drvdata->hclk_rga);
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264 clk_enable(drvdata->pd_rga);
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265 wake_lock(&drvdata->wake_lock);
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266 rga_service.enable = true;
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269 /* Caller must hold rga_service.lock */
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270 static void rga_power_off(void)
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274 if (!rga_service.enable) {
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278 total_running = atomic_read(&rga_service.total_running);
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279 if (total_running) {
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280 pr_err("power off when %d task running!!\n", total_running);
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282 pr_err("delay 50 ms for running task\n");
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286 clk_disable(drvdata->pd_rga);
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287 clk_disable(drvdata->aclk_rga);
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288 clk_disable(drvdata->hclk_rga);
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289 wake_unlock(&drvdata->wake_lock);
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290 rga_service.enable = false;
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293 static void rga_power_off_work(struct work_struct *work)
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295 if (mutex_trylock(&rga_service.lock)) {
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297 mutex_unlock(&rga_service.lock);
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299 /* Come back later if the device is busy... */
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300 rga_queue_power_off_work();
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304 static int rga_flush(rga_session *session, unsigned long arg)
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309 #if RGA_TEST_FLUSH_TIME
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312 start = ktime_get();
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315 ret_timeout = wait_event_timeout(session->wait, atomic_read(&session->done), RGA_TIMEOUT_DELAY);
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317 if (unlikely(ret_timeout < 0)) {
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318 //pr_err("flush pid %d wait task ret %d\n", session->pid, ret);
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319 mutex_lock(&rga_service.lock);
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320 rga_del_running_list();
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321 mutex_unlock(&rga_service.lock);
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323 } else if (0 == ret_timeout) {
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324 //pr_err("flush pid %d wait %d task done timeout\n", session->pid, atomic_read(&session->task_running));
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325 //printk("bus = %.8x\n", rga_read(RGA_INT));
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326 mutex_lock(&rga_service.lock);
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327 rga_del_running_list_timeout();
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329 mutex_unlock(&rga_service.lock);
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333 #if RGA_TEST_FLUSH_TIME
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335 end = ktime_sub(end, start);
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336 printk("one flush wait time %d\n", (int)ktime_to_us(end));
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343 static int rga_get_result(rga_session *session, unsigned long arg)
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345 //printk("rga_get_result %d\n",drvdata->rga_result);
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351 num_done = atomic_read(&session->num_done);
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353 if (unlikely(copy_to_user((void __user *)arg, &num_done, sizeof(int)))) {
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354 printk("copy_to_user failed\n");
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361 static int rga_check_param(const struct rga_req *req)
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363 /*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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364 //check src width and height
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366 if(!((req->render_mode == color_fill_mode) || (req->render_mode == line_point_drawing_mode)))
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368 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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370 printk("invalid source resolution act_w = %d, act_h = %d\n", req->src.act_w, req->src.act_h);
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375 if(!((req->render_mode == color_fill_mode) || (req->render_mode == line_point_drawing_mode)))
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377 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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379 printk("invalid source resolution vir_w = %d, vir_h = %d\n", req->src.vir_w, req->src.vir_h);
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384 //check dst width and height
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385 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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387 printk("invalid destination resolution act_w = %d, act_h = %d\n", req->dst.act_w, req->dst.act_h);
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391 if (unlikely((req->dst.vir_w <= 0) || (req->dst.vir_w > 4096) || (req->dst.vir_h <= 0) || (req->dst.vir_h > 2048)))
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393 printk("invalid destination resolution vir_w = %d, vir_h = %d\n", req->dst.vir_w, req->dst.vir_h);
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398 if(unlikely(req->src.vir_w < req->src.act_w)){
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399 printk("invalid src_vir_w act_w = %d, vir_w = %d\n", req->src.act_w, req->src.vir_w);
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404 if(unlikely(req->dst.vir_w < req->dst.act_w)){
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405 if(req->rotate_mode != 1)
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407 printk("invalid dst_vir_w act_h = %d, vir_h = %d\n", req->dst.act_w, req->dst.vir_w);
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415 static void rga_copy_reg(struct rga_reg *reg, uint32_t offset)
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421 if(atomic_read(®->session->task_running) != 0)
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423 printk(KERN_ERR "task_running is no zero\n");
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426 atomic_add(1, &rga_service.cmd_num);
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427 atomic_add(1, ®->session->task_running);
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429 cmd_buf = (uint32_t *)rga_service.cmd_buff + offset*28;
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430 reg_p = (uint32_t *)reg->cmd_reg;
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432 for(i=0; i<28; i++)
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434 cmd_buf[i] = reg_p[i];
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441 static struct rga_reg * rga_reg_init(rga_session *session, struct rga_req *req)
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444 struct rga_reg *reg = kzalloc(sizeof(struct rga_reg), GFP_KERNEL);
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446 pr_err("kmalloc fail in rga_reg_init\n");
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450 reg->session = session;
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451 INIT_LIST_HEAD(®->session_link);
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452 INIT_LIST_HEAD(®->status_link);
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454 reg->MMU_base = NULL;
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456 if (req->mmu_info.mmu_en)
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458 ret = rga_set_mmu_info(reg, req);
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461 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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470 if(RGA_gen_reg_info(req, (uint8_t *)reg->cmd_reg) == -1)
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472 printk("gen reg info error\n");
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480 mutex_lock(&rga_service.lock);
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481 list_add_tail(®->status_link, &rga_service.waiting);
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482 list_add_tail(®->session_link, &session->waiting);
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483 mutex_unlock(&rga_service.lock);
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488 static struct rga_reg * rga_reg_init_2(rga_session *session, struct rga_req *req0, struct rga_req *req1)
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492 struct rga_reg *reg0, *reg1;
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499 reg0 = kzalloc(sizeof(struct rga_reg), GFP_KERNEL);
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500 if (NULL == reg0) {
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501 pr_err("%s [%d] kmalloc fail in rga_reg_init\n", __FUNCTION__, __LINE__);
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505 reg1 = kzalloc(sizeof(struct rga_reg), GFP_KERNEL);
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506 if (NULL == reg1) {
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507 pr_err("%s [%d] kmalloc fail in rga_reg_init\n", __FUNCTION__, __LINE__);
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511 reg0->session = session;
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512 INIT_LIST_HEAD(®0->session_link);
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513 INIT_LIST_HEAD(®0->status_link);
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515 reg1->session = session;
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516 INIT_LIST_HEAD(®1->session_link);
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517 INIT_LIST_HEAD(®1->status_link);
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519 if(req0->mmu_info.mmu_en)
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521 ret = rga_set_mmu_info(reg0, req0);
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523 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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528 RGA_gen_reg_info(req0, (uint8_t *)reg0->cmd_reg);
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530 if(req1->mmu_info.mmu_en)
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532 ret = rga_set_mmu_info(reg1, req1);
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534 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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539 RGA_gen_reg_info(req1, (uint8_t *)reg1->cmd_reg);
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541 mutex_lock(&rga_service.lock);
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542 list_add_tail(®0->status_link, &rga_service.waiting);
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543 list_add_tail(®0->session_link, &session->waiting);
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544 list_add_tail(®1->status_link, &rga_service.waiting);
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545 list_add_tail(®1->session_link, &session->waiting);
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546 mutex_unlock(&rga_service.lock);
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563 /* Caller must hold rga_service.lock */
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564 static void rga_reg_deinit(struct rga_reg *reg)
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566 list_del_init(®->session_link);
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567 list_del_init(®->status_link);
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571 /* Caller must hold rga_service.lock */
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572 static void rga_reg_from_wait_to_run(struct rga_reg *reg)
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574 list_del_init(®->status_link);
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575 list_add_tail(®->status_link, &rga_service.running);
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577 list_del_init(®->session_link);
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578 list_add_tail(®->session_link, ®->session->running);
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581 /* Caller must hold rga_service.lock */
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582 static void rga_service_session_clear(rga_session *session)
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584 struct rga_reg *reg, *n;
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586 list_for_each_entry_safe(reg, n, &session->waiting, session_link)
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588 rga_reg_deinit(reg);
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591 list_for_each_entry_safe(reg, n, &session->running, session_link)
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593 rga_reg_deinit(reg);
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597 /* Caller must hold rga_service.lock */
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598 static void rga_try_set_reg(void)
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600 struct rga_reg *reg ;
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602 if (list_empty(&rga_service.running))
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604 if (!list_empty(&rga_service.waiting))
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607 reg = list_entry(rga_service.waiting.next, struct rga_reg, status_link);
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612 rga_copy_reg(reg, 0);
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613 rga_reg_from_wait_to_run(reg);
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615 dmac_flush_range(&rga_service.cmd_buff[0], &rga_service.cmd_buff[28]);
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616 outer_flush_range(virt_to_phys(&rga_service.cmd_buff[0]),virt_to_phys(&rga_service.cmd_buff[28]));
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618 #if defined(CONFIG_ARCH_RK30)
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622 rga_write(0x0, RGA_SYS_CTRL);
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623 rga_write(0, RGA_MMU_CTRL);
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626 rga_write(virt_to_phys(rga_service.cmd_buff), RGA_CMD_ADDR);
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630 //printk(KERN_DEBUG "cmd_addr = %.8x\n", rga_read(RGA_CMD_ADDR));
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633 p = rga_service.cmd_buff;
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634 printk("CMD_REG\n");
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635 for (i=0; i<7; i++)
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636 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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641 rga_write((0x1<<2)|(0x1<<3), RGA_SYS_CTRL);
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643 /* All CMD finish int */
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644 rga_write(rga_read(RGA_INT)|(0x1<<10)|(0x1<<8), RGA_INT);
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647 rga_start = ktime_get();
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651 atomic_set(®->session->done, 0);
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652 rga_write(0x1, RGA_CMD_CTRL);
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657 printk("CMD_READ_BACK_REG\n");
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658 for (i=0; i<7; i++)
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659 printk("%.8x %.8x %.8x %.8x\n", rga_read(0x100 + i*16 + 0),
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660 rga_read(0x100 + i*16 + 4), rga_read(0x100 + i*16 + 8), rga_read(0x100 + i*16 + 12));
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670 /* Caller must hold rga_service.lock */
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671 static void rga_del_running_list(void)
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673 struct rga_reg *reg;
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675 while(!list_empty(&rga_service.running))
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677 reg = list_entry(rga_service.running.next, struct rga_reg, status_link);
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679 if(reg->MMU_base != NULL)
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681 kfree(reg->MMU_base);
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682 reg->MMU_base = NULL;
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684 atomic_sub(1, ®->session->task_running);
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685 atomic_sub(1, &rga_service.total_running);
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687 if(list_empty(®->session->waiting))
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689 atomic_set(®->session->done, 1);
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690 wake_up(®->session->wait);
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693 rga_reg_deinit(reg);
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697 /* Caller must hold rga_service.lock */
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698 static void rga_del_running_list_timeout(void)
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700 struct rga_reg *reg;
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702 while(!list_empty(&rga_service.running))
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704 reg = list_entry(rga_service.running.next, struct rga_reg, status_link);
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706 if(reg->MMU_base != NULL)
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708 kfree(reg->MMU_base);
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711 atomic_sub(1, ®->session->task_running);
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712 atomic_sub(1, &rga_service.total_running);
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714 //printk("RGA soft reset for timeout process\n");
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719 printk("RGA_INT is %.8x\n", rga_read(RGA_INT));
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720 printk("reg->session->task_running = %d\n", atomic_read(®->session->task_running));
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721 printk("rga_service.total_running = %d\n", atomic_read(&rga_service.total_running));
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723 print_info(®->req);
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728 for (i=0; i<7; i++)
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729 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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734 if(list_empty(®->session->waiting))
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736 atomic_set(®->session->done, 1);
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737 wake_up(®->session->wait);
\r
740 rga_reg_deinit(reg);
\r
745 static void rga_mem_addr_sel(struct rga_req *req)
\r
747 switch(req->src.format)
\r
749 case RK_FORMAT_YCbCr_422_SP:
\r
751 case RK_FORMAT_YCbCr_422_P :
\r
753 case RK_FORMAT_YCbCr_420_SP :
\r
754 if((req->src.yrgb_addr > 0xc0000000) && (req->src.uv_addr > 0xc0000000)
\r
755 && (req->dst.yrgb_addr > 0xc0000000))
\r
757 req->src.yrgb_addr = req->src.yrgb_addr - 0x60000000;
\r
758 req->src.uv_addr = req->src.uv_addr - 0x60000000;
\r
759 req->dst.yrgb_addr = req->dst.yrgb_addr - 0x60000000;
\r
760 req->mmu_info.mmu_en = 0;
\r
761 req->mmu_info.mmu_flag &= 0xfffe;
\r
764 case RK_FORMAT_YCbCr_420_P :
\r
766 case RK_FORMAT_YCrCb_422_SP :
\r
768 case RK_FORMAT_YCrCb_422_P :
\r
770 case RK_FORMAT_YCrCb_420_SP :
\r
772 case RK_FORMAT_YCrCb_420_P :
\r
781 static int rga_blit(rga_session *session, struct rga_req *req)
\r
785 struct rga_reg *reg;
\r
786 struct rga_req req2;
\r
788 uint32_t saw, sah, daw, dah;
\r
790 saw = req->src.act_w;
\r
791 sah = req->src.act_h;
\r
792 daw = req->dst.act_w;
\r
793 dah = req->dst.act_h;
\r
797 if((req->render_mode == bitblt_mode) && (((saw>>1) >= daw) || ((sah>>1) >= dah)))
\r
799 /* generate 2 cmd for pre scale */
\r
801 ret = rga_check_param(req);
\r
802 if(ret == -EINVAL) {
\r
803 printk("req 0 argument is inval\n");
\r
807 ret = RGA_gen_two_pro(req, &req2);
\r
808 if(ret == -EINVAL) {
\r
812 ret = rga_check_param(req);
\r
813 if(ret == -EINVAL) {
\r
814 printk("req 1 argument is inval\n");
\r
818 ret = rga_check_param(&req2);
\r
819 if(ret == -EINVAL) {
\r
820 printk("req 2 argument is inval\n");
\r
824 reg = rga_reg_init_2(session, req, &req2);
\r
833 /* check value if legal */
\r
834 ret = rga_check_param(req);
\r
835 if(ret == -EINVAL) {
\r
836 printk("req argument is inval\n");
\r
840 if(req->render_mode == bitblt_mode)
\r
842 rga_mem_addr_sel(req);
\r
845 reg = rga_reg_init(session, req);
\r
852 mutex_lock(&rga_service.lock);
\r
853 atomic_add(num, &rga_service.total_running);
\r
855 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
872 atomic_set(&session->done, 0);
\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
888 atomic_set(&session->done, 0);
\r
890 ret = rga_blit(session, req);
\r
896 ret_timeout = wait_event_timeout(session->wait, atomic_read(&session->done), RGA_TIMEOUT_DELAY);
\r
898 if (unlikely(ret_timeout< 0))
\r
900 //pr_err("sync pid %d wait task ret %d\n", session->pid, ret_timeout);
\r
901 mutex_lock(&rga_service.lock);
\r
902 rga_del_running_list();
\r
903 mutex_unlock(&rga_service.lock);
\r
906 else if (0 == ret_timeout)
\r
908 //pr_err("sync pid %d wait %d task done timeout\n", session->pid, atomic_read(&session->task_running));
\r
909 mutex_lock(&rga_service.lock);
\r
910 rga_del_running_list_timeout();
\r
912 mutex_unlock(&rga_service.lock);
\r
917 rga_end = ktime_get();
\r
918 rga_end = ktime_sub(rga_end, rga_start);
\r
919 printk("sync one cmd end time %d\n", (int)ktime_to_us(rga_end));
\r
926 static long rga_ioctl(struct file *file, uint32_t cmd, unsigned long arg)
\r
928 struct rga_req req;
\r
930 rga_session *session;
\r
932 mutex_lock(&rga_service.mutex);
\r
934 session = (rga_session *)file->private_data;
\r
936 if (NULL == session)
\r
938 printk("%s [%d] rga thread session is null\n",__FUNCTION__,__LINE__);
\r
939 mutex_unlock(&rga_service.mutex);
\r
943 memset(&req, 0x0, sizeof(req));
\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
995 long rga_ioctl_kernel(struct rga_req *req)
\r
998 rga_session *session;
\r
1000 mutex_lock(&rga_service.mutex);
\r
1002 session = &rga_session_global;
\r
1004 if (NULL == session)
\r
1006 printk("%s [%d] rga thread session is null\n",__FUNCTION__,__LINE__);
\r
1007 mutex_unlock(&rga_service.mutex);
\r
1011 switch (RGA_BLIT_SYNC)
\r
1013 case RGA_BLIT_SYNC:
\r
1014 ret = rga_blit_sync(session, req);
\r
1016 case RGA_BLIT_ASYNC:
\r
1020 case RGA_GET_RESULT:
\r
1022 case RGA_GET_VERSION:
\r
1026 ERR("unknown ioctl cmd!\n");
\r
1031 mutex_unlock(&rga_service.mutex);
\r
1037 static int rga_open(struct inode *inode, struct file *file)
\r
1039 rga_session *session = kzalloc(sizeof(rga_session), GFP_KERNEL);
\r
1040 if (NULL == session) {
\r
1041 pr_err("unable to allocate memory for rga_session.");
\r
1045 session->pid = current->pid;
\r
1046 //printk(KERN_DEBUG "+");
\r
1048 INIT_LIST_HEAD(&session->waiting);
\r
1049 INIT_LIST_HEAD(&session->running);
\r
1050 INIT_LIST_HEAD(&session->list_session);
\r
1051 init_waitqueue_head(&session->wait);
\r
1052 mutex_lock(&rga_service.lock);
\r
1053 list_add_tail(&session->list_session, &rga_service.session);
\r
1054 mutex_unlock(&rga_service.lock);
\r
1055 atomic_set(&session->task_running, 0);
\r
1056 atomic_set(&session->num_done, 0);
\r
1058 file->private_data = (void *)session;
\r
1060 //DBG("*** rga dev opened by pid %d *** \n", session->pid);
\r
1061 return nonseekable_open(inode, file);
\r
1065 static int rga_release(struct inode *inode, struct file *file)
\r
1068 rga_session *session = (rga_session *)file->private_data;
\r
1069 if (NULL == session)
\r
1071 //printk(KERN_DEBUG "-");
\r
1072 task_running = atomic_read(&session->task_running);
\r
1076 pr_err("rga_service session %d still has %d task running when closing\n", session->pid, task_running);
\r
1081 wake_up(&session->wait);
\r
1082 mutex_lock(&rga_service.lock);
\r
1083 list_del(&session->list_session);
\r
1084 rga_service_session_clear(session);
\r
1086 mutex_unlock(&rga_service.lock);
\r
1088 //DBG("*** rga dev close ***\n");
\r
1092 static irqreturn_t rga_irq_thread(int irq, void *dev_id)
\r
1094 mutex_lock(&rga_service.lock);
\r
1095 if (rga_service.enable) {
\r
1096 rga_del_running_list();
\r
1097 rga_try_set_reg();
\r
1099 mutex_unlock(&rga_service.lock);
\r
1101 return IRQ_HANDLED;
\r
1104 static irqreturn_t rga_irq(int irq, void *dev_id)
\r
1107 rga_write(rga_read(RGA_INT) | (0x1<<6) | (0x1<<7) | (0x1<<4), RGA_INT);
\r
1109 return IRQ_WAKE_THREAD;
\r
1112 struct file_operations rga_fops = {
\r
1113 .owner = THIS_MODULE,
\r
1115 .release = rga_release,
\r
1116 .unlocked_ioctl = rga_ioctl,
\r
1119 static struct miscdevice rga_dev ={
\r
1120 .minor = RGA_MAJOR,
\r
1122 .fops = &rga_fops,
\r
1125 static int __devinit rga_drv_probe(struct platform_device *pdev)
\r
1127 struct rga_drvdata *data;
\r
1130 INIT_LIST_HEAD(&rga_service.waiting);
\r
1131 INIT_LIST_HEAD(&rga_service.running);
\r
1132 INIT_LIST_HEAD(&rga_service.done);
\r
1133 INIT_LIST_HEAD(&rga_service.session);
\r
1134 mutex_init(&rga_service.lock);
\r
1135 mutex_init(&rga_service.mutex);
\r
1136 atomic_set(&rga_service.total_running, 0);
\r
1137 atomic_set(&rga_service.src_format_swt, 0);
\r
1138 rga_service.last_prc_src_format = 1; /* default is yuv first*/
\r
1139 rga_service.enable = false;
\r
1141 data = kzalloc(sizeof(struct rga_drvdata), GFP_KERNEL);
\r
1144 ERR("failed to allocate driver data.\n");
\r
1148 INIT_DELAYED_WORK(&data->power_off_work, rga_power_off_work);
\r
1149 wake_lock_init(&data->wake_lock, WAKE_LOCK_SUSPEND, "rga");
\r
1151 data->pd_rga = clk_get(NULL, "pd_rga");
\r
1152 data->aclk_rga = clk_get(NULL, "aclk_rga");
\r
1153 data->hclk_rga = clk_get(NULL, "hclk_rga");
\r
1155 /* map the memory */
\r
1156 if (!request_mem_region(RK30_RGA_PHYS, RK30_RGA_SIZE, "rga_io"))
\r
1158 pr_info("failed to reserve rga HW regs\n");
\r
1162 data->rga_base = (void*)ioremap_nocache(RK30_RGA_PHYS, RK30_RGA_SIZE);
\r
1163 if (data->rga_base == NULL)
\r
1165 ERR("rga ioremap failed\n");
\r
1171 data->irq = platform_get_irq(pdev, 0);
\r
1172 if (data->irq <= 0)
\r
1174 ERR("failed to get rga irq resource (%d).\n", data->irq);
\r
1179 /* request the IRQ */
\r
1180 ret = request_threaded_irq(data->irq, rga_irq, rga_irq_thread, 0, "rga", pdev);
\r
1183 ERR("rga request_irq failed (%d).\n", ret);
\r
1187 platform_set_drvdata(pdev, data);
\r
1190 ret = misc_register(&rga_dev);
\r
1193 ERR("cannot register miscdev (%d)\n", ret);
\r
1194 goto err_misc_register;
\r
1197 pr_info("Driver loaded succesfully\n");
\r
1201 err_misc_register:
\r
1202 free_irq(data->irq, pdev);
\r
1204 iounmap(data->rga_base);
\r
1206 wake_lock_destroy(&data->wake_lock);
\r
1212 static int rga_drv_remove(struct platform_device *pdev)
\r
1214 struct rga_drvdata *data = platform_get_drvdata(pdev);
\r
1215 DBG("%s [%d]\n",__FUNCTION__,__LINE__);
\r
1217 wake_lock_destroy(&data->wake_lock);
\r
1218 misc_deregister(&(data->miscdev));
\r
1219 free_irq(data->irq, &data->miscdev);
\r
1220 iounmap((void __iomem *)(data->rga_base));
\r
1222 clk_put(data->pd_rga);
\r
1223 clk_put(data->aclk_rga);
\r
1224 clk_put(data->hclk_rga);
\r
1230 static struct platform_driver rga_driver = {
\r
1231 .probe = rga_drv_probe,
\r
1232 .remove = __devexit_p(rga_drv_remove),
\r
1234 .owner = THIS_MODULE,
\r
1240 void rga_test_0(void);
\r
1241 void rga_test_1(void);
\r
1244 static int __init rga_init(void)
\r
1247 uint32_t *mmu_buf;
\r
1251 /* malloc pre scale mid buf mmu table */
\r
1252 mmu_buf = kzalloc(1024*8, GFP_KERNEL);
\r
1253 if(mmu_buf == NULL)
\r
1255 printk(KERN_ERR "RGA get Pre Scale buff failed. \n");
\r
1259 /* malloc 8 M buf */
\r
1260 for(i=0; i<2048; i++)
\r
1262 buf_p = (uint32_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
\r
1265 printk(KERN_ERR "RGA init pre scale buf falied\n");
\r
1269 mmu_buf[i] = virt_to_phys((void *)((uint32_t)buf_p));
\r
1272 rga_service.pre_scale_buf = (uint32_t *)mmu_buf;
\r
1274 if ((ret = platform_driver_register(&rga_driver)) != 0)
\r
1276 printk(KERN_ERR "Platform device register failed (%d).\n", ret);
\r
1281 rga_session_global.pid = 0x0000ffff;
\r
1282 INIT_LIST_HEAD(&rga_session_global.waiting);
\r
1283 INIT_LIST_HEAD(&rga_session_global.running);
\r
1284 INIT_LIST_HEAD(&rga_session_global.list_session);
\r
1285 init_waitqueue_head(&rga_session_global.wait);
\r
1286 //mutex_lock(&rga_service.lock);
\r
1287 list_add_tail(&rga_session_global.list_session, &rga_service.session);
\r
1288 //mutex_unlock(&rga_service.lock);
\r
1289 atomic_set(&rga_session_global.task_running, 0);
\r
1290 atomic_set(&rga_session_global.num_done, 0);
\r
1297 INFO("Module initialized.\n");
\r
1302 static void __exit rga_exit(void)
\r
1308 for(i=0; i<2048; i++)
\r
1310 if((uint32_t *)rga_service.pre_scale_buf[i] != NULL)
\r
1312 __free_page((void *)rga_service.pre_scale_buf[i]);
\r
1316 if(rga_service.pre_scale_buf != NULL) {
\r
1317 kfree((uint8_t *)rga_service.pre_scale_buf);
\r
1319 platform_driver_unregister(&rga_driver);
\r
1325 extern struct fb_info * rk_get_fb(int fb_id);
\r
1326 EXPORT_SYMBOL(rk_get_fb);
\r
1328 extern void rk_direct_fb_show(struct fb_info * fbi);
\r
1329 EXPORT_SYMBOL(rk_direct_fb_show);
\r
1331 unsigned int src_buf[1920*1080];
\r
1332 unsigned int dst_buf[1920*1080];
\r
1333 //unsigned int tmp_buf[1920*1080 * 2];
\r
1335 void rga_test_0(void)
\r
1337 struct rga_req req;
\r
1338 rga_session session;
\r
1339 unsigned int *src, *dst;
\r
1343 uint32_t *dst0, *dst1, *dst2;
\r
1345 struct fb_info *fb;
\r
1347 session.pid = current->pid;
\r
1348 INIT_LIST_HEAD(&session.waiting);
\r
1349 INIT_LIST_HEAD(&session.running);
\r
1350 INIT_LIST_HEAD(&session.list_session);
\r
1351 init_waitqueue_head(&session.wait);
\r
1352 /* no need to protect */
\r
1353 list_add_tail(&session.list_session, &rga_service.session);
\r
1354 atomic_set(&session.task_running, 0);
\r
1355 atomic_set(&session.num_done, 0);
\r
1356 //file->private_data = (void *)session;
\r
1358 fb = rk_get_fb(0);
\r
1360 memset(&req, 0, sizeof(struct rga_req));
\r
1364 memset(src_buf, 0x80, 1024*600*4);
\r
1366 dmac_flush_range(&src_buf[0], &src_buf[1024*600]);
\r
1367 outer_flush_range(virt_to_phys(&src_buf[0]),virt_to_phys(&src_buf[1024*600]));
\r
1371 memset(src_buf, 0x80, 800*480*4);
\r
1372 memset(dst_buf, 0xcc, 800*480*4);
\r
1374 dmac_flush_range(&dst_buf[0], &dst_buf[800*480]);
\r
1375 outer_flush_range(virt_to_phys(&dst_buf[0]),virt_to_phys(&dst_buf[800*480]));
\r
1378 dst0 = &dst_buf[0];
\r
1379 //dst1 = &dst_buf[1280*800*4];
\r
1380 //dst2 = &dst_buf[1280*800*4*2];
\r
1384 printk("\n********************************\n");
\r
1385 printk("************ RGA_TEST ************\n");
\r
1386 printk("********************************\n\n");
\r
1388 req.src.act_w = 1024;
\r
1389 req.src.act_h = 600;
\r
1391 req.src.vir_w = 1024;
\r
1392 req.src.vir_h = 600;
\r
1393 req.src.yrgb_addr = (uint32_t)virt_to_phys(src);
\r
1394 req.src.uv_addr = (uint32_t)(req.src.yrgb_addr + 1080*1920);
\r
1395 req.src.v_addr = (uint32_t)virt_to_phys(src);
\r
1396 req.src.format = RK_FORMAT_RGBA_8888;
\r
1398 req.dst.act_w = 600;
\r
1399 req.dst.act_h = 352;
\r
1401 req.dst.vir_w = 1280;
\r
1402 req.dst.vir_h = 800;
\r
1403 req.dst.x_offset = 600;
\r
1404 req.dst.y_offset = 0;
\r
1408 req.dst.yrgb_addr = ((uint32_t)virt_to_phys(dst));
\r
1410 //req.dst.format = RK_FORMAT_RGB_565;
\r
1412 req.clip.xmin = 0;
\r
1413 req.clip.xmax = 1279;
\r
1414 req.clip.ymin = 0;
\r
1415 req.clip.ymax = 799;
\r
1417 //req.render_mode = color_fill_mode;
\r
1418 //req.fg_color = 0x80ffffff;
\r
1420 req.rotate_mode = 1;
\r
1421 //req.scale_mode = 2;
\r
1423 //req.alpha_rop_flag = 0;
\r
1424 //req.alpha_rop_mode = 0x19;
\r
1425 //req.PD_mode = 3;
\r
1430 //req.mmu_info.mmu_flag = 0x21;
\r
1431 //req.mmu_info.mmu_en = 1;
\r
1433 //printk("src = %.8x\n", req.src.yrgb_addr);
\r
1434 //printk("src = %.8x\n", req.src.uv_addr);
\r
1435 //printk("dst = %.8x\n", req.dst.yrgb_addr);
\r
1438 rga_blit_sync(&session, &req);
\r
1441 fb->var.bits_per_pixel = 32;
\r
1443 fb->var.xres = 1280;
\r
1444 fb->var.yres = 800;
\r
1446 fb->var.red.length = 8;
\r
1447 fb->var.red.offset = 0;
\r
1448 fb->var.red.msb_right = 0;
\r
1450 fb->var.green.length = 8;
\r
1451 fb->var.green.offset = 8;
\r
1452 fb->var.green.msb_right = 0;
\r
1454 fb->var.blue.length = 8;
\r
1456 fb->var.blue.offset = 16;
\r
1457 fb->var.blue.msb_right = 0;
\r
1459 fb->var.transp.length = 8;
\r
1460 fb->var.transp.offset = 24;
\r
1461 fb->var.transp.msb_right = 0;
\r
1463 fb->var.nonstd &= (~0xff);
\r
1464 fb->var.nonstd |= 1;
\r
1466 fb->fix.smem_start = virt_to_phys(dst);
\r
1468 rk_direct_fb_show(fb);
\r
1474 module_init(rga_init);
\r
1475 module_exit(rga_exit);
\r
1477 /* Module information */
\r
1478 MODULE_AUTHOR("zsq@rock-chips.com");
\r
1479 MODULE_DESCRIPTION("Driver for rga device");
\r
1480 MODULE_LICENSE("GPL");
\r