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_bcast.h" 9 #include "lima_regs.h" 10 11 #define bcast_write(reg, data) writel(data, ip->iomem + reg) 12 #define bcast_read(reg) readl(ip->iomem + reg) 13 14 void lima_bcast_enable(struct lima_device *dev, int num_pp) 15 { 16 struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp; 17 struct lima_ip *ip = dev->ip + lima_ip_bcast; 18 int i, mask = bcast_read(LIMA_BCAST_BROADCAST_MASK) & 0xffff0000; 19 20 for (i = 0; i < num_pp; i++) { 21 struct lima_ip *pp = pipe->processor[i]; 22 23 mask |= 1 << (pp->id - lima_ip_pp0); 24 } 25 26 bcast_write(LIMA_BCAST_BROADCAST_MASK, mask); 27 } 28 29 static int lima_bcast_hw_init(struct lima_ip *ip) 30 { 31 bcast_write(LIMA_BCAST_BROADCAST_MASK, ip->data.mask << 16); 32 bcast_write(LIMA_BCAST_INTERRUPT_MASK, ip->data.mask); 33 return 0; 34 } 35 36 int lima_bcast_resume(struct lima_ip *ip) 37 { 38 return lima_bcast_hw_init(ip); 39 } 40 41 void lima_bcast_suspend(struct lima_ip *ip) 42 { 43 44 } 45 46 int lima_bcast_init(struct lima_ip *ip) 47 { 48 int i; 49 50 for (i = lima_ip_pp0; i <= lima_ip_pp7; i++) { 51 if (ip->dev->ip[i].present) 52 ip->data.mask |= 1 << (i - lima_ip_pp0); 53 } 54 55 return lima_bcast_hw_init(ip); 56 } 57 58 void lima_bcast_fini(struct lima_ip *ip) 59 { 60 61 } 62 63