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1// SPDX-License-Identifier: GPL-2.0 OR MIT2/* 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 14void 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 29static 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 36int lima_bcast_resume(struct lima_ip *ip)37{38 return lima_bcast_hw_init(ip);39}40 41void lima_bcast_suspend(struct lima_ip *ip)42{43 44}45 46int lima_bcast_mask_irq(struct lima_ip *ip)47{48 bcast_write(LIMA_BCAST_BROADCAST_MASK, 0);49 bcast_write(LIMA_BCAST_INTERRUPT_MASK, 0);50 return 0;51}52 53int lima_bcast_reset(struct lima_ip *ip)54{55 return lima_bcast_hw_init(ip);56}57 58int lima_bcast_init(struct lima_ip *ip)59{60 int i;61 62 for (i = lima_ip_pp0; i <= lima_ip_pp7; i++) {63 if (ip->dev->ip[i].present)64 ip->data.mask |= 1 << (i - lima_ip_pp0);65 }66 67 return lima_bcast_hw_init(ip);68}69 70void lima_bcast_fini(struct lima_ip *ip)71{72 73}74 75