1 // SPDX-License-Identifier: GPL-2.0 OR MIT 2 /* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */ 3 4 #include <linux/io.h> 5 #include <linux/device.h> 6 7 #include "lima_device.h" 8 #include "lima_dlbu.h" 9 #include "lima_vm.h" 10 #include "lima_regs.h" 11 12 #define dlbu_write(reg, data) writel(data, ip->iomem + reg) 13 #define dlbu_read(reg) readl(ip->iomem + reg) 14 15 void lima_dlbu_enable(struct lima_device *dev, int num_pp) 16 { 17 struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp; 18 struct lima_ip *ip = dev->ip + lima_ip_dlbu; 19 int i, mask = 0; 20 21 for (i = 0; i < num_pp; i++) { 22 struct lima_ip *pp = pipe->processor[i]; 23 24 mask |= 1 << (pp->id - lima_ip_pp0); 25 } 26 27 dlbu_write(LIMA_DLBU_PP_ENABLE_MASK, mask); 28 } 29 30 void lima_dlbu_disable(struct lima_device *dev) 31 { 32 struct lima_ip *ip = dev->ip + lima_ip_dlbu; 33 34 dlbu_write(LIMA_DLBU_PP_ENABLE_MASK, 0); 35 } 36 37 void lima_dlbu_set_reg(struct lima_ip *ip, u32 *reg) 38 { 39 dlbu_write(LIMA_DLBU_TLLIST_VBASEADDR, reg[0]); 40 dlbu_write(LIMA_DLBU_FB_DIM, reg[1]); 41 dlbu_write(LIMA_DLBU_TLLIST_CONF, reg[2]); 42 dlbu_write(LIMA_DLBU_START_TILE_POS, reg[3]); 43 } 44 45 int lima_dlbu_init(struct lima_ip *ip) 46 { 47 struct lima_device *dev = ip->dev; 48 49 dlbu_write(LIMA_DLBU_MASTER_TLLIST_PHYS_ADDR, dev->dlbu_dma | 1); 50 dlbu_write(LIMA_DLBU_MASTER_TLLIST_VADDR, LIMA_VA_RESERVE_DLBU); 51 52 return 0; 53 } 54 55 void lima_dlbu_fini(struct lima_ip *ip) 56 { 57 58 } 59