2 * Copyright (C) 2012 ROCKCHIP, Inc.
4 * This software is licensed under the terms of the GNU General Public
5 * License version 2, as published by the Free Software Foundation, and
6 * may be copied, distributed, and modified under those terms.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
15 #define pr_fmt(fmt) "rga: " fmt
16 #include <linux/kernel.h>
17 #include <linux/init.h>
18 #include <linux/module.h>
19 #include <linux/platform_device.h>
20 #include <linux/sched.h>
21 #include <linux/mutex.h>
22 #include <linux/err.h>
23 #include <linux/clk.h>
24 #include <asm/delay.h>
25 #include <linux/dma-mapping.h>
26 #include <linux/delay.h>
28 #include <linux/irq.h>
29 #include <linux/interrupt.h>
30 //#include <mach/io.h>
31 //#include <mach/irqs.h>
33 #include <asm/uaccess.h>
34 #include <linux/miscdevice.h>
35 #include <linux/poll.h>
36 #include <linux/delay.h>
37 #include <linux/wait.h>
38 #include <linux/syscalls.h>
39 #include <linux/timer.h>
40 #include <linux/time.h>
41 #include <asm/cacheflush.h>
42 #include <linux/slab.h>
44 #include <linux/wakelock.h>
46 #if defined(CONFIG_ION_ROCKCHIP)
47 #include <linux/rockchip_ion.h>
52 #include "rga_reg_info.h"
53 #include "rga_mmu_info.h"
56 #define RGA_TEST_CASE 0
59 #define RGA_TEST_TIME 0
60 #define RGA_TEST_FLUSH_TIME 0
61 #define RGA_INFO_BUS_ERROR 1
63 #define PRE_SCALE_BUF_SIZE 2048*1024*4
65 #define RGA_POWER_OFF_DELAY 4*HZ /* 4s */
66 #define RGA_TIMEOUT_DELAY 2*HZ /* 2s */
70 #if defined(CONFIG_ARCH_RK2928) || defined(CONFIG_ARCH_RK3026)
71 #define RK30_RGA_PHYS RK2928_RGA_PHYS
72 #define RK30_RGA_SIZE RK2928_RGA_SIZE
74 #define RGA_RESET_TIMEOUT 1000
76 /* Driver information */
77 #define DRIVER_DESC "RGA Device Driver"
78 #define DRIVER_NAME "rga"
80 #define RGA_VERSION "1.003"
85 rga_session rga_session_global;
87 long (*rga_ioctl_kernel_p)(struct rga_req *);
91 struct miscdevice miscdev;
96 struct delayed_work power_off_work;
97 void (*rga_irq_callback)(int rga_retval); //callback function used by aync call
98 struct wake_lock wake_lock;
101 struct clk *aclk_rga;
102 struct clk *hclk_rga;
104 //#if defined(CONFIG_ION_ROCKCHIP)
105 struct ion_client * ion_client;
109 static struct rga_drvdata *drvdata;
110 rga_service_info rga_service;
111 struct rga_mmu_buf_t rga_mmu_buf;
114 #if defined(CONFIG_ION_ROCKCHIP)
115 extern struct ion_client *rockchip_ion_client_create(const char * name);
118 static int rga_blit_async(rga_session *session, struct rga_req *req);
119 static void rga_del_running_list(void);
120 static void rga_del_running_list_timeout(void);
121 static void rga_try_set_reg(void);
127 #define DBG(format, args...) printk(KERN_DEBUG "%s: " format, DRIVER_NAME, ## args)
128 #define ERR(format, args...) printk(KERN_ERR "%s: " format, DRIVER_NAME, ## args)
129 #define WARNING(format, args...) printk(KERN_WARN "%s: " format, DRIVER_NAME, ## args)
130 #define INFO(format, args...) printk(KERN_INFO "%s: " format, DRIVER_NAME, ## args)
132 #define DBG(format, args...)
133 #define ERR(format, args...)
134 #define WARNING(format, args...)
135 #define INFO(format, args...)
139 static void print_info(struct rga_req *req)
141 printk("src : yrgb_addr = %.8x, src.uv_addr = %.8x, src.v_addr = %.8x, format = %d\n",
142 req->src.yrgb_addr, req->src.uv_addr, req->src.v_addr, req->src.format);
143 printk("src : act_w = %d, act_h = %d, vir_w = %d, vir_h = %d\n",
144 req->src.act_w, req->src.act_h, req->src.vir_w, req->src.vir_h);
145 printk("src : x_off = %.8x y_off = %.8x\n", req->src.x_offset, req->src.y_offset);
147 printk("dst : yrgb_addr = %.8x, dst.uv_addr = %.8x, dst.v_addr = %.8x, format = %d\n",
148 req->dst.yrgb_addr, req->dst.uv_addr, req->dst.v_addr, req->dst.format);
149 printk("dst : x_off = %.8x y_off = %.8x\n", req->dst.x_offset, req->dst.y_offset);
150 printk("dst : act_w = %d, act_h = %d, vir_w = %d, vir_h = %d\n",
151 req->dst.act_w, req->dst.act_h, req->dst.vir_w, req->dst.vir_h);
153 printk("clip.xmin = %d, clip.xmax = %d. clip.ymin = %d, clip.ymax = %d\n",
154 req->clip.xmin, req->clip.xmax, req->clip.ymin, req->clip.ymax);
156 printk("mmu_flag = %.8x\n", req->mmu_info.mmu_flag);
158 //printk("alpha_rop_flag = %.8x\n", req->alpha_rop_flag);
159 //printk("alpha_rop_mode = %.8x\n", req->alpha_rop_mode);
160 //printk("PD_mode = %.8x\n", req->PD_mode);
165 static inline void rga_write(u32 b, u32 r)
167 __raw_writel(b, drvdata->rga_base + r);
170 static inline u32 rga_read(u32 r)
172 return __raw_readl(drvdata->rga_base + r);
175 static void rga_soft_reset(void)
180 rga_write(1, RGA_SYS_CTRL); //RGA_SYS_CTRL
182 for(i = 0; i < RGA_RESET_TIMEOUT; i++)
184 reg = rga_read(RGA_SYS_CTRL) & 1; //RGA_SYS_CTRL
192 if(i == RGA_RESET_TIMEOUT)
193 ERR("soft reset timeout.\n");
196 static void rga_dump(void)
199 struct rga_reg *reg, *reg_tmp;
200 rga_session *session, *session_tmp;
202 running = atomic_read(&rga_service.total_running);
203 printk("rga total_running %d\n", running);
207 /* Dump waiting list info */
208 if (!list_empty(&rga_service.waiting))
212 next = &rga_service.waiting;
214 printk("rga_service dump waiting list\n");
218 reg = list_entry(next->next, struct rga_reg, status_link);
219 running = atomic_read(®->session->task_running);
220 num_done = atomic_read(®->session->num_done);
221 printk("rga session pid %d, done %d, running %d\n", reg->session->pid, num_done, running);
224 while(!list_empty(next));
227 /* Dump running list info */
228 if (!list_empty(&rga_service.running))
230 printk("rga_service dump running list\n");
234 next = &rga_service.running;
237 reg = list_entry(next->next, struct rga_reg, status_link);
238 running = atomic_read(®->session->task_running);
239 num_done = atomic_read(®->session->num_done);
240 printk("rga session pid %d, done %d, running %d:\n", reg->session->pid, num_done, running);
243 while(!list_empty(next));
247 list_for_each_entry_safe(session, session_tmp, &rga_service.session, list_session)
249 printk("session pid %d:\n", session->pid);
250 running = atomic_read(&session->task_running);
251 printk("task_running %d\n", running);
252 list_for_each_entry_safe(reg, reg_tmp, &session->waiting, session_link)
254 printk("waiting register set 0x%.8x\n", (unsigned int)reg);
256 list_for_each_entry_safe(reg, reg_tmp, &session->running, session_link)
258 printk("running register set 0x%.8x\n", (unsigned int)reg);
263 static inline void rga_queue_power_off_work(void)
265 queue_delayed_work(system_nrt_wq, &drvdata->power_off_work, RGA_POWER_OFF_DELAY);
268 /* Caller must hold rga_service.lock */
269 static void rga_power_on(void)
272 ktime_t now = ktime_get();
274 if (ktime_to_ns(ktime_sub(now, last)) > NSEC_PER_SEC) {
275 cancel_delayed_work_sync(&drvdata->power_off_work);
276 rga_queue_power_off_work();
279 if (rga_service.enable)
282 clk_prepare_enable(drvdata->aclk_rga);
283 clk_prepare_enable(drvdata->hclk_rga);
284 //clk_prepare_enable(drvdata->pd_rga);
285 wake_lock(&drvdata->wake_lock);
286 rga_service.enable = true;
289 /* Caller must hold rga_service.lock */
290 static void rga_power_off(void)
294 if (!rga_service.enable) {
298 total_running = atomic_read(&rga_service.total_running);
300 pr_err("power off when %d task running!!\n", total_running);
302 pr_err("delay 50 ms for running task\n");
306 //clk_disable_unprepare(drvdata->pd_rga);
307 clk_disable_unprepare(drvdata->aclk_rga);
308 clk_disable_unprepare(drvdata->hclk_rga);
309 wake_unlock(&drvdata->wake_lock);
310 rga_service.enable = false;
313 static void rga_power_off_work(struct work_struct *work)
315 if (mutex_trylock(&rga_service.lock)) {
317 mutex_unlock(&rga_service.lock);
319 /* Come back later if the device is busy... */
320 rga_queue_power_off_work();
324 static int rga_flush(rga_session *session, unsigned long arg)
329 #if RGA_TEST_FLUSH_TIME
335 ret_timeout = wait_event_timeout(session->wait, atomic_read(&session->done), RGA_TIMEOUT_DELAY);
337 if (unlikely(ret_timeout < 0)) {
338 //pr_err("flush pid %d wait task ret %d\n", session->pid, ret);
339 mutex_lock(&rga_service.lock);
340 rga_del_running_list();
341 mutex_unlock(&rga_service.lock);
343 } else if (0 == ret_timeout) {
344 //pr_err("flush pid %d wait %d task done timeout\n", session->pid, atomic_read(&session->task_running));
345 //printk("bus = %.8x\n", rga_read(RGA_INT));
346 mutex_lock(&rga_service.lock);
347 rga_del_running_list_timeout();
349 mutex_unlock(&rga_service.lock);
353 #if RGA_TEST_FLUSH_TIME
355 end = ktime_sub(end, start);
356 printk("one flush wait time %d\n", (int)ktime_to_us(end));
363 static int rga_get_result(rga_session *session, unsigned long arg)
365 //printk("rga_get_result %d\n",drvdata->rga_result);
371 num_done = atomic_read(&session->num_done);
373 if (unlikely(copy_to_user((void __user *)arg, &num_done, sizeof(int)))) {
374 printk("copy_to_user failed\n");
381 static int rga_check_param(const struct rga_req *req)
383 /*RGA can support up to 8192*8192 resolution in RGB format,but we limit the image size to 8191*8191 here*/
384 //check src width and height
386 if(!((req->render_mode == color_fill_mode) || (req->render_mode == line_point_drawing_mode)))
388 if (unlikely((req->src.act_w <= 0) || (req->src.act_w > 8191) || (req->src.act_h <= 0) || (req->src.act_h > 8191)))
390 printk("invalid source resolution act_w = %d, act_h = %d\n", req->src.act_w, req->src.act_h);
395 if(!((req->render_mode == color_fill_mode) || (req->render_mode == line_point_drawing_mode)))
397 if (unlikely((req->src.vir_w <= 0) || (req->src.vir_w > 8191) || (req->src.vir_h <= 0) || (req->src.vir_h > 8191)))
399 printk("invalid source resolution vir_w = %d, vir_h = %d\n", req->src.vir_w, req->src.vir_h);
404 //check dst width and height
405 if (unlikely((req->dst.act_w <= 0) || (req->dst.act_w > 2048) || (req->dst.act_h <= 0) || (req->dst.act_h > 2048)))
407 printk("invalid destination resolution act_w = %d, act_h = %d\n", req->dst.act_w, req->dst.act_h);
411 if (unlikely((req->dst.vir_w <= 0) || (req->dst.vir_w > 4096) || (req->dst.vir_h <= 0) || (req->dst.vir_h > 2048)))
413 printk("invalid destination resolution vir_w = %d, vir_h = %d\n", req->dst.vir_w, req->dst.vir_h);
418 if(unlikely(req->src.vir_w < req->src.act_w)){
419 printk("invalid src_vir_w act_w = %d, vir_w = %d\n", req->src.act_w, req->src.vir_w);
424 if(unlikely(req->dst.vir_w < req->dst.act_w)){
425 if(req->rotate_mode != 1)
427 printk("invalid dst_vir_w act_h = %d, vir_h = %d\n", req->dst.act_w, req->dst.vir_w);
435 static void rga_copy_reg(struct rga_reg *reg, uint32_t offset)
441 if(atomic_read(®->session->task_running) != 0)
443 printk(KERN_ERR "task_running is no zero\n");
446 atomic_add(1, &rga_service.cmd_num);
447 atomic_add(1, ®->session->task_running);
449 cmd_buf = (uint32_t *)rga_service.cmd_buff + offset*32;
450 reg_p = (uint32_t *)reg->cmd_reg;
454 cmd_buf[i] = reg_p[i];
461 static struct rga_reg * rga_reg_init(rga_session *session, struct rga_req *req)
464 struct rga_reg *reg = kzalloc(sizeof(struct rga_reg), GFP_KERNEL);
466 pr_err("kmalloc fail in rga_reg_init\n");
470 reg->session = session;
471 INIT_LIST_HEAD(®->session_link);
472 INIT_LIST_HEAD(®->status_link);
474 reg->MMU_base = NULL;
476 if (req->mmu_info.mmu_en)
478 ret = rga_set_mmu_info(reg, req);
481 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
490 if(RGA_gen_reg_info(req, (uint8_t *)reg->cmd_reg) == -1)
492 printk("gen reg info error\n");
500 mutex_lock(&rga_service.lock);
501 list_add_tail(®->status_link, &rga_service.waiting);
502 list_add_tail(®->session_link, &session->waiting);
503 mutex_unlock(&rga_service.lock);
508 static struct rga_reg * rga_reg_init_2(rga_session *session, struct rga_req *req0, struct rga_req *req1)
512 struct rga_reg *reg0, *reg1;
519 reg0 = kzalloc(sizeof(struct rga_reg), GFP_KERNEL);
521 pr_err("%s [%d] kmalloc fail in rga_reg_init\n", __FUNCTION__, __LINE__);
525 reg1 = kzalloc(sizeof(struct rga_reg), GFP_KERNEL);
527 pr_err("%s [%d] kmalloc fail in rga_reg_init\n", __FUNCTION__, __LINE__);
531 reg0->session = session;
532 INIT_LIST_HEAD(®0->session_link);
533 INIT_LIST_HEAD(®0->status_link);
535 reg1->session = session;
536 INIT_LIST_HEAD(®1->session_link);
537 INIT_LIST_HEAD(®1->status_link);
539 req0->mmu_info.mmu_flag &= (~(1 << 10));
541 if(req0->mmu_info.mmu_en)
543 ret = rga_set_mmu_info(reg0, req0);
545 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
550 RGA_gen_reg_info(req0, (uint8_t *)reg0->cmd_reg);
552 req1->mmu_info.mmu_flag &= (~(1 << 8));
554 if(req1->mmu_info.mmu_en)
556 ret = rga_set_mmu_info(reg1, req1);
558 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
563 RGA_gen_reg_info(req1, (uint8_t *)reg1->cmd_reg);
565 mutex_lock(&rga_service.lock);
566 list_add_tail(®0->status_link, &rga_service.waiting);
567 list_add_tail(®0->session_link, &session->waiting);
568 list_add_tail(®1->status_link, &rga_service.waiting);
569 list_add_tail(®1->session_link, &session->waiting);
570 mutex_unlock(&rga_service.lock);
587 /* Caller must hold rga_service.lock */
588 static void rga_reg_deinit(struct rga_reg *reg)
590 list_del_init(®->session_link);
591 list_del_init(®->status_link);
595 /* Caller must hold rga_service.lock */
596 static void rga_reg_from_wait_to_run(struct rga_reg *reg)
598 list_del_init(®->status_link);
599 list_add_tail(®->status_link, &rga_service.running);
601 list_del_init(®->session_link);
602 list_add_tail(®->session_link, ®->session->running);
605 /* Caller must hold rga_service.lock */
606 static void rga_service_session_clear(rga_session *session)
608 struct rga_reg *reg, *n;
610 list_for_each_entry_safe(reg, n, &session->waiting, session_link)
615 list_for_each_entry_safe(reg, n, &session->running, session_link)
621 /* Caller must hold rga_service.lock */
622 static void rga_try_set_reg(void)
624 struct rga_reg *reg ;
626 if (list_empty(&rga_service.running))
628 if (!list_empty(&rga_service.waiting))
631 reg = list_entry(rga_service.waiting.next, struct rga_reg, status_link);
636 rga_copy_reg(reg, 0);
637 rga_reg_from_wait_to_run(reg);
639 dmac_flush_range(&rga_service.cmd_buff[0], &rga_service.cmd_buff[28]);
640 outer_flush_range(virt_to_phys(&rga_service.cmd_buff[0]),virt_to_phys(&rga_service.cmd_buff[28]));
646 rga_write(0x0, RGA_SYS_CTRL);
647 rga_write(0, RGA_MMU_CTRL);
650 rga_write(virt_to_phys(rga_service.cmd_buff), RGA_CMD_ADDR);
654 //printk(KERN_DEBUG "cmd_addr = %.8x\n", rga_read(RGA_CMD_ADDR));
657 p = rga_service.cmd_buff;
660 printk("%.8x %.8x %.8x %.8x\n", p[0 + i*4], p[1+i*4], p[2 + i*4], p[3 + i*4]);
661 printk("%.8x %.8x\n", p[0 + i*4], p[1+i*4]);
666 rga_write((0x1<<2)|(0x1<<3), RGA_SYS_CTRL);
668 /* All CMD finish int */
669 rga_write(rga_read(RGA_INT)|(0x1<<10)|(0x1<<8), RGA_INT);
672 rga_start = ktime_get();
676 atomic_set(®->session->done, 0);
677 rga_write(0x1, RGA_CMD_CTRL);
682 printk("CMD_READ_BACK_REG\n");
684 printk("%.8x %.8x %.8x %.8x\n", rga_read(0x100 + i*16 + 0),
685 rga_read(0x100 + i*16 + 4), rga_read(0x100 + i*16 + 8), rga_read(0x100 + i*16 + 12));
686 printk("%.8x %.8x\n", rga_read(0x100 + i*16 + 0), rga_read(0x100 + i*16 + 4));
696 /* Caller must hold rga_service.lock */
697 static void rga_del_running_list(void)
701 while(!list_empty(&rga_service.running))
703 reg = list_entry(rga_service.running.next, struct rga_reg, status_link);
705 if(reg->MMU_len != 0)
707 if (rga_mmu_buf.back + reg->MMU_len > 2*rga_mmu_buf.size)
708 rga_mmu_buf.back = reg->MMU_len + rga_mmu_buf.size;
710 rga_mmu_buf.back += reg->MMU_len;
713 atomic_sub(1, ®->session->task_running);
714 atomic_sub(1, &rga_service.total_running);
716 if(list_empty(®->session->waiting))
718 atomic_set(®->session->done, 1);
719 wake_up(®->session->wait);
726 /* Caller must hold rga_service.lock */
727 static void rga_del_running_list_timeout(void)
731 while(!list_empty(&rga_service.running))
733 reg = list_entry(rga_service.running.next, struct rga_reg, status_link);
735 if(reg->MMU_base != NULL)
737 kfree(reg->MMU_base);
740 atomic_sub(1, ®->session->task_running);
741 atomic_sub(1, &rga_service.total_running);
743 //printk("RGA soft reset for timeout process\n");
748 printk("RGA_INT is %.8x\n", rga_read(RGA_INT));
749 printk("reg->session->task_running = %d\n", atomic_read(®->session->task_running));
750 printk("rga_service.total_running = %d\n", atomic_read(&rga_service.total_running));
752 print_info(®->req);
758 printk("%.8x %.8x %.8x %.8x\n", p[0 + i*4], p[1+i*4], p[2 + i*4], p[3 + i*4]);
763 if(list_empty(®->session->waiting))
765 atomic_set(®->session->done, 1);
766 wake_up(®->session->wait);
774 static void rga_mem_addr_sel(struct rga_req *req)
776 switch(req->src.format)
778 case RK_FORMAT_YCbCr_422_SP:
780 case RK_FORMAT_YCbCr_422_P :
782 case RK_FORMAT_YCbCr_420_SP :
783 if((req->src.yrgb_addr > 0xc0000000) && (req->src.uv_addr > 0xc0000000)
784 && (req->dst.yrgb_addr > 0xc0000000))
786 req->src.yrgb_addr = req->src.yrgb_addr - 0x60000000;
787 req->src.uv_addr = req->src.uv_addr - 0x60000000;
788 req->dst.yrgb_addr = req->dst.yrgb_addr - 0x60000000;
789 req->mmu_info.mmu_en = 0;
790 req->mmu_info.mmu_flag &= 0xfffe;
793 case RK_FORMAT_YCbCr_420_P :
795 case RK_FORMAT_YCrCb_422_SP :
797 case RK_FORMAT_YCrCb_422_P :
799 case RK_FORMAT_YCrCb_420_SP :
801 case RK_FORMAT_YCrCb_420_P :
809 static int rga_convert_dma_buf(struct rga_req *req)
811 struct ion_handle *hdl;
812 ion_phys_addr_t phy_addr;
815 uint32_t src_offset, dst_offset;
820 src_offset = req->line_draw_info.flag;
821 dst_offset = req->line_draw_info.line_width;
823 if(req->src.yrgb_addr) {
824 hdl = ion_import_dma_buf(drvdata->ion_client, req->src.yrgb_addr);
827 printk("RGA2 ERROR ion buf handle\n");
830 if ((req->mmu_info.mmu_flag >> 8) & 1) {
831 req->sg_src = ion_sg_table(drvdata->ion_client, hdl);
832 req->src.yrgb_addr = req->src.uv_addr;
833 req->src.uv_addr = req->src.yrgb_addr + (req->src.vir_w * req->src.vir_h);
834 req->src.v_addr = req->src.uv_addr + (req->src.vir_w * req->src.vir_h)/4;
837 ion_phys(drvdata->ion_client, hdl, &phy_addr, &len);
838 req->src.yrgb_addr = phy_addr + src_offset;
839 req->src.uv_addr = req->src.yrgb_addr + (req->src.vir_w * req->src.vir_h);
840 req->src.v_addr = req->src.uv_addr + (req->src.vir_w * req->src.vir_h)/4;
842 ion_free(drvdata->ion_client, hdl);
845 req->src.yrgb_addr = req->src.uv_addr;
846 req->src.uv_addr = req->src.yrgb_addr + (req->src.vir_w * req->src.vir_h);
847 req->src.v_addr = req->src.uv_addr + (req->src.vir_w * req->src.vir_h)/4;
850 if(req->dst.yrgb_addr) {
851 hdl = ion_import_dma_buf(drvdata->ion_client, req->dst.yrgb_addr);
854 printk("RGA2 ERROR ion buf handle\n");
857 if ((req->mmu_info.mmu_flag >> 10) & 1) {
858 req->sg_dst = ion_sg_table(drvdata->ion_client, hdl);
859 req->dst.yrgb_addr = req->dst.uv_addr;
860 req->dst.uv_addr = req->dst.yrgb_addr + (req->dst.vir_w * req->dst.vir_h);
861 req->dst.v_addr = req->dst.uv_addr + (req->dst.vir_w * req->dst.vir_h)/4;
864 ion_phys(drvdata->ion_client, hdl, &phy_addr, &len);
865 req->dst.yrgb_addr = phy_addr + dst_offset;
866 req->dst.uv_addr = req->dst.yrgb_addr + (req->dst.vir_w * req->dst.vir_h);
867 req->dst.v_addr = req->dst.uv_addr + (req->dst.vir_w * req->dst.vir_h)/4;
869 ion_free(drvdata->ion_client, hdl);
872 req->dst.yrgb_addr = req->dst.uv_addr;
873 req->dst.uv_addr = req->dst.yrgb_addr + (req->dst.vir_w * req->dst.vir_h);
874 req->dst.v_addr = req->dst.uv_addr + (req->dst.vir_w * req->dst.vir_h)/4;
881 static int rga_blit(rga_session *session, struct rga_req *req)
888 uint32_t saw, sah, daw, dah;
890 saw = req->src.act_w;
891 sah = req->src.act_h;
892 daw = req->dst.act_w;
893 dah = req->dst.act_h;
899 if(rga_convert_dma_buf(req)) {
900 printk("RGA : DMA buf copy error\n");
905 if((req->render_mode == bitblt_mode) && (((saw>>1) >= daw) || ((sah>>1) >= dah))) {
906 /* generate 2 cmd for pre scale */
908 ret = rga_check_param(req);
910 printk("req 0 argument is inval\n");
914 ret = RGA_gen_two_pro(req, &req2);
919 ret = rga_check_param(req);
921 printk("req 1 argument is inval\n");
925 ret = rga_check_param(&req2);
927 printk("req 2 argument is inval\n");
931 reg = rga_reg_init_2(session, req, &req2);
939 /* check value if legal */
940 ret = rga_check_param(req);
942 printk("req argument is inval\n");
946 if(req->render_mode == bitblt_mode)
947 rga_mem_addr_sel(req);
949 reg = rga_reg_init(session, req);
956 mutex_lock(&rga_service.lock);
957 atomic_add(num, &rga_service.total_running);
959 mutex_unlock(&rga_service.lock);
968 static int rga_blit_async(rga_session *session, struct rga_req *req)
973 printk("*** rga_blit_async proc ***\n");
976 atomic_set(&session->done, 0);
977 ret = rga_blit(session, req);
981 static int rga_blit_sync(rga_session *session, struct rga_req *req)
987 printk("*** rga_blit_sync proc ***\n");
990 atomic_set(&session->done, 0);
991 ret = rga_blit(session, req);
995 ret_timeout = wait_event_timeout(session->wait, atomic_read(&session->done), RGA_TIMEOUT_DELAY);
997 if (unlikely(ret_timeout< 0)) {
998 mutex_lock(&rga_service.lock);
999 rga_del_running_list();
1000 mutex_unlock(&rga_service.lock);
1003 else if (0 == ret_timeout) {
1004 mutex_lock(&rga_service.lock);
1005 rga_del_running_list_timeout();
1007 mutex_unlock(&rga_service.lock);
1012 rga_end = ktime_get();
1013 rga_end = ktime_sub(rga_end, rga_start);
1014 printk("sync one cmd end time %d\n", (int)ktime_to_us(rga_end));
1021 static long rga_ioctl(struct file *file, uint32_t cmd, unsigned long arg)
1025 rga_session *session;
1027 mutex_lock(&rga_service.mutex);
1029 session = (rga_session *)file->private_data;
1031 if (NULL == session) {
1032 printk("%s [%d] rga thread session is null\n",__FUNCTION__,__LINE__);
1033 mutex_unlock(&rga_service.mutex);
1037 memset(&req, 0x0, sizeof(req));
1041 if (unlikely(copy_from_user(&req, (struct rga_req*)arg, sizeof(struct rga_req))))
1043 ERR("copy_from_user failed\n");
1047 ret = rga_blit_sync(session, &req);
1049 case RGA_BLIT_ASYNC:
1050 if (unlikely(copy_from_user(&req, (struct rga_req*)arg, sizeof(struct rga_req))))
1052 ERR("copy_from_user failed\n");
1057 if((atomic_read(&rga_service.total_running) > 16))
1059 ret = rga_blit_sync(session, &req);
1063 ret = rga_blit_async(session, &req);
1067 ret = rga_flush(session, arg);
1069 case RGA_GET_RESULT:
1070 ret = rga_get_result(session, arg);
1072 case RGA_GET_VERSION:
1073 ret = copy_to_user((void *)arg, RGA_VERSION, sizeof(RGA_VERSION));
1077 ERR("unknown ioctl cmd!\n");
1082 mutex_unlock(&rga_service.mutex);
1088 long rga_ioctl_kernel(struct rga_req *req)
1091 if (!rga_ioctl_kernel_p) {
1092 printk("rga_ioctl_kernel_p is NULL\n");
1096 ret = (*rga_ioctl_kernel_p)(req);
1102 long rga_ioctl_kernel_imp(struct rga_req *req)
1105 rga_session *session;
1107 mutex_lock(&rga_service.mutex);
1109 session = &rga_session_global;
1111 if (NULL == session) {
1112 printk("%s [%d] rga thread session is null\n",__FUNCTION__,__LINE__);
1113 mutex_unlock(&rga_service.mutex);
1117 ret = rga_blit_sync(session, req);
1119 mutex_unlock(&rga_service.mutex);
1125 static int rga_open(struct inode *inode, struct file *file)
1127 rga_session *session = kzalloc(sizeof(rga_session), GFP_KERNEL);
1128 if (NULL == session) {
1129 pr_err("unable to allocate memory for rga_session.");
1133 session->pid = current->pid;
1134 //printk(KERN_DEBUG "+");
1136 INIT_LIST_HEAD(&session->waiting);
1137 INIT_LIST_HEAD(&session->running);
1138 INIT_LIST_HEAD(&session->list_session);
1139 init_waitqueue_head(&session->wait);
1140 mutex_lock(&rga_service.lock);
1141 list_add_tail(&session->list_session, &rga_service.session);
1142 mutex_unlock(&rga_service.lock);
1143 atomic_set(&session->task_running, 0);
1144 atomic_set(&session->num_done, 0);
1146 file->private_data = (void *)session;
1148 //DBG("*** rga dev opened by pid %d *** \n", session->pid);
1149 return nonseekable_open(inode, file);
1153 static int rga_release(struct inode *inode, struct file *file)
1156 rga_session *session = (rga_session *)file->private_data;
1157 if (NULL == session)
1159 //printk(KERN_DEBUG "-");
1160 task_running = atomic_read(&session->task_running);
1164 pr_err("rga_service session %d still has %d task running when closing\n", session->pid, task_running);
1169 wake_up(&session->wait);
1170 mutex_lock(&rga_service.lock);
1171 list_del(&session->list_session);
1172 rga_service_session_clear(session);
1174 mutex_unlock(&rga_service.lock);
1176 //DBG("*** rga dev close ***\n");
1180 static irqreturn_t rga_irq_thread(int irq, void *dev_id)
1182 mutex_lock(&rga_service.lock);
1183 if (rga_service.enable) {
1184 rga_del_running_list();
1187 mutex_unlock(&rga_service.lock);
1192 static irqreturn_t rga_irq(int irq, void *dev_id)
1195 rga_write(rga_read(RGA_INT) | (0x1<<6) | (0x1<<7) | (0x1<<4), RGA_INT);
1197 return IRQ_WAKE_THREAD;
1200 struct file_operations rga_fops = {
1201 .owner = THIS_MODULE,
1203 .release = rga_release,
1204 .unlocked_ioctl = rga_ioctl,
1207 static struct miscdevice rga_dev ={
1214 #if defined(CONFIG_OF)
1215 static const struct of_device_id rockchip_rga_dt_ids[] = {
1216 { .compatible = "rockchip,rk312x-rga", },
1221 static int rga_drv_probe(struct platform_device *pdev)
1223 struct rga_drvdata *data;
1224 struct resource *res;
1225 //struct device_node *np = pdev->dev.of_node;
1228 mutex_init(&rga_service.lock);
1229 mutex_init(&rga_service.mutex);
1230 atomic_set(&rga_service.total_running, 0);
1231 rga_service.enable = false;
1233 rga_ioctl_kernel_p = rga_ioctl_kernel_imp;
1235 data = devm_kzalloc(&pdev->dev, sizeof(struct rga_drvdata), GFP_KERNEL);
1237 ERR("failed to allocate driver data.\n");
1241 INIT_DELAYED_WORK(&data->power_off_work, rga_power_off_work);
1242 wake_lock_init(&data->wake_lock, WAKE_LOCK_SUSPEND, "rga");
1244 //data->pd_rga = devm_clk_get(&pdev->dev, "pd_rga");
1245 data->aclk_rga = devm_clk_get(&pdev->dev, "aclk_rga");
1246 data->hclk_rga = devm_clk_get(&pdev->dev, "hclk_rga");
1248 /* map the registers */
1249 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1250 data->rga_base = devm_ioremap_resource(&pdev->dev, res);
1251 if (!data->rga_base) {
1252 ERR("rga ioremap failed\n");
1258 data->irq = ret = platform_get_irq(pdev, 0);
1260 ERR("failed to get rga irq resource (%d).\n", data->irq);
1265 /* request the IRQ */
1266 //ret = request_threaded_irq(data->irq, rga_irq, rga_irq_thread, 0, "rga", pdev);
1267 ret = devm_request_threaded_irq(&pdev->dev, data->irq, rga_irq, rga_irq_thread, 0, "rga", data);
1270 ERR("rga request_irq failed (%d).\n", ret);
1274 platform_set_drvdata(pdev, data);
1277 #if defined(CONFIG_ION_ROCKCHIP)
1278 data->ion_client = rockchip_ion_client_create("rga");
1279 if (IS_ERR(data->ion_client)) {
1280 dev_err(&pdev->dev, "failed to create ion client for rga");
1281 return PTR_ERR(data->ion_client);
1283 dev_info(&pdev->dev, "rga ion client create success!\n");
1287 ret = misc_register(&rga_dev);
1290 ERR("cannot register miscdev (%d)\n", ret);
1291 goto err_misc_register;
1294 pr_info("Driver loaded succesfully\n");
1299 free_irq(data->irq, pdev);
1301 iounmap(data->rga_base);
1303 wake_lock_destroy(&data->wake_lock);
1309 static int rga_drv_remove(struct platform_device *pdev)
1311 struct rga_drvdata *data = platform_get_drvdata(pdev);
1312 DBG("%s [%d]\n",__FUNCTION__,__LINE__);
1314 wake_lock_destroy(&data->wake_lock);
1315 misc_deregister(&(data->miscdev));
1316 free_irq(data->irq, &data->miscdev);
1317 iounmap((void __iomem *)(data->rga_base));
1319 //clk_put(data->pd_rga);
1320 devm_clk_put(&pdev->dev, data->aclk_rga);
1321 devm_clk_put(&pdev->dev, data->hclk_rga);
1327 static struct platform_driver rga_driver = {
1328 .probe = rga_drv_probe,
1329 .remove = rga_drv_remove,
1331 .owner = THIS_MODULE,
1333 .of_match_table = of_match_ptr(rockchip_rga_dt_ids),
1338 void rga_test_0(void);
1339 void rga_test_1(void);
1342 static int __init rga_init(void)
1349 /* malloc pre scale mid buf mmu table */
1350 mmu_buf = kzalloc(1024*8, GFP_KERNEL);
1351 if(mmu_buf == NULL) {
1352 printk(KERN_ERR "RGA get Pre Scale buff failed. \n");
1356 /* malloc 4 M buf */
1357 for(i=0; i<1024; i++) {
1358 buf_p = (uint32_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
1360 printk(KERN_ERR "RGA init pre scale buf falied\n");
1363 mmu_buf[i] = virt_to_phys((void *)((uint32_t)buf_p));
1366 rga_service.pre_scale_buf = (uint32_t *)mmu_buf;
1368 buf_p = kmalloc(1024*256, GFP_KERNEL);
1369 rga_mmu_buf.buf_virtual = buf_p;
1370 rga_mmu_buf.buf = (uint32_t *)virt_to_phys((void *)((uint32_t)buf_p));
1371 rga_mmu_buf.front = 0;
1372 rga_mmu_buf.back = 64*1024;
1373 rga_mmu_buf.size = 64*1024;
1375 rga_mmu_buf.pages = kmalloc((32768)* sizeof(struct page *), GFP_KERNEL);
1377 if ((ret = platform_driver_register(&rga_driver)) != 0)
1379 printk(KERN_ERR "Platform device register failed (%d).\n", ret);
1384 rga_session_global.pid = 0x0000ffff;
1385 INIT_LIST_HEAD(&rga_session_global.waiting);
1386 INIT_LIST_HEAD(&rga_session_global.running);
1387 INIT_LIST_HEAD(&rga_session_global.list_session);
1389 INIT_LIST_HEAD(&rga_service.waiting);
1390 INIT_LIST_HEAD(&rga_service.running);
1391 INIT_LIST_HEAD(&rga_service.done);
1392 INIT_LIST_HEAD(&rga_service.session);
1394 init_waitqueue_head(&rga_session_global.wait);
1395 //mutex_lock(&rga_service.lock);
1396 list_add_tail(&rga_session_global.list_session, &rga_service.session);
1397 //mutex_unlock(&rga_service.lock);
1398 atomic_set(&rga_session_global.task_running, 0);
1399 atomic_set(&rga_session_global.num_done, 0);
1408 INFO("Module initialized.\n");
1413 static void __exit rga_exit(void)
1419 for(i=0; i<1024; i++)
1421 if((uint32_t *)rga_service.pre_scale_buf[i] != NULL)
1423 __free_page((void *)rga_service.pre_scale_buf[i]);
1427 if(rga_service.pre_scale_buf != NULL) {
1428 kfree((uint8_t *)rga_service.pre_scale_buf);
1431 if (rga_mmu_buf.buf_virtual)
1432 kfree(rga_mmu_buf.buf_virtual);
1434 if (rga_mmu_buf.pages)
1435 kfree(rga_mmu_buf.pages);
1437 platform_driver_unregister(&rga_driver);
1443 extern struct fb_info * rk_get_fb(int fb_id);
1444 EXPORT_SYMBOL(rk_get_fb);
1446 extern void rk_direct_fb_show(struct fb_info * fbi);
1447 EXPORT_SYMBOL(rk_direct_fb_show);
1449 unsigned int src_buf[1920*1080];
1450 unsigned int dst_buf[1920*1080];
1451 //unsigned int tmp_buf[1920*1080 * 2];
1453 void rga_test_0(void)
1456 rga_session session;
1457 unsigned int *src, *dst;
1461 uint32_t *dst0, *dst1, *dst2;
1465 session.pid = current->pid;
1466 INIT_LIST_HEAD(&session.waiting);
1467 INIT_LIST_HEAD(&session.running);
1468 INIT_LIST_HEAD(&session.list_session);
1469 init_waitqueue_head(&session.wait);
1470 /* no need to protect */
1471 list_add_tail(&session.list_session, &rga_service.session);
1472 atomic_set(&session.task_running, 0);
1473 atomic_set(&session.num_done, 0);
1474 //file->private_data = (void *)session;
1478 memset(&req, 0, sizeof(struct rga_req));
1482 memset(src_buf, 0x80, 1024*600*4);
1484 dmac_flush_range(&src_buf[0], &src_buf[1024*600]);
1485 outer_flush_range(virt_to_phys(&src_buf[0]),virt_to_phys(&src_buf[1024*600]));
1489 memset(src_buf, 0x80, 800*480*4);
1490 memset(dst_buf, 0xcc, 800*480*4);
1492 dmac_flush_range(&dst_buf[0], &dst_buf[800*480]);
1493 outer_flush_range(virt_to_phys(&dst_buf[0]),virt_to_phys(&dst_buf[800*480]));
1497 //dst1 = &dst_buf[1280*800*4];
1498 //dst2 = &dst_buf[1280*800*4*2];
1502 printk("\n********************************\n");
1503 printk("************ RGA_TEST ************\n");
1504 printk("********************************\n\n");
1506 req.src.act_w = 1024;
1507 req.src.act_h = 600;
1509 req.src.vir_w = 1024;
1510 req.src.vir_h = 600;
1511 req.src.yrgb_addr = (uint32_t)virt_to_phys(src);
1512 req.src.uv_addr = (uint32_t)(req.src.yrgb_addr + 1080*1920);
1513 req.src.v_addr = (uint32_t)virt_to_phys(src);
1514 req.src.format = RK_FORMAT_RGBA_8888;
1516 req.dst.act_w = 600;
1517 req.dst.act_h = 352;
1519 req.dst.vir_w = 1280;
1520 req.dst.vir_h = 800;
1521 req.dst.x_offset = 600;
1522 req.dst.y_offset = 0;
1526 req.dst.yrgb_addr = ((uint32_t)virt_to_phys(dst));
1528 //req.dst.format = RK_FORMAT_RGB_565;
1531 req.clip.xmax = 1279;
1533 req.clip.ymax = 799;
1535 //req.render_mode = color_fill_mode;
1536 //req.fg_color = 0x80ffffff;
1538 req.rotate_mode = 1;
1539 //req.scale_mode = 2;
1541 //req.alpha_rop_flag = 0;
1542 //req.alpha_rop_mode = 0x19;
1548 //req.mmu_info.mmu_flag = 0x21;
1549 //req.mmu_info.mmu_en = 1;
1551 //printk("src = %.8x\n", req.src.yrgb_addr);
1552 //printk("src = %.8x\n", req.src.uv_addr);
1553 //printk("dst = %.8x\n", req.dst.yrgb_addr);
1556 rga_blit_sync(&session, &req);
1559 fb->var.bits_per_pixel = 32;
1561 fb->var.xres = 1280;
1564 fb->var.red.length = 8;
1565 fb->var.red.offset = 0;
1566 fb->var.red.msb_right = 0;
1568 fb->var.green.length = 8;
1569 fb->var.green.offset = 8;
1570 fb->var.green.msb_right = 0;
1572 fb->var.blue.length = 8;
1574 fb->var.blue.offset = 16;
1575 fb->var.blue.msb_right = 0;
1577 fb->var.transp.length = 8;
1578 fb->var.transp.offset = 24;
1579 fb->var.transp.msb_right = 0;
1581 fb->var.nonstd &= (~0xff);
1582 fb->var.nonstd |= 1;
1584 fb->fix.smem_start = virt_to_phys(dst);
1586 rk_direct_fb_show(fb);
1592 module_init(rga_init);
1593 module_exit(rga_exit);
1595 /* Module information */
1596 MODULE_AUTHOR("zsq@rock-chips.com");
1597 MODULE_DESCRIPTION("Driver for rga device");
1598 MODULE_LICENSE("GPL");