tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
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
29int lima_bcast_init(struct lima_ip *ip)
30{
31 int i, mask = 0;
32
33 for (i = lima_ip_pp0; i <= lima_ip_pp7; i++) {
34 if (ip->dev->ip[i].present)
35 mask |= 1 << (i - lima_ip_pp0);
36 }
37
38 bcast_write(LIMA_BCAST_BROADCAST_MASK, mask << 16);
39 bcast_write(LIMA_BCAST_INTERRUPT_MASK, mask);
40 return 0;
41}
42
43void lima_bcast_fini(struct lima_ip *ip)
44{
45
46}
47