75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
|
// SPDX-License-Identifier: GPL-2.0 OR MIT
|
||
|
|
/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
|
||
|
|
|
||
|
|
#include <linux/io.h>
|
||
|
|
#include <linux/device.h>
|
||
|
|
|
||
|
|
#include "lima_device.h"
|
||
|
|
#include "lima_bcast.h"
|
||
|
|
#include "lima_regs.h"
|
||
|
|
|
||
|
|
#define bcast_write(reg, data) writel(data, ip->iomem + reg)
|
||
|
|
#define bcast_read(reg) readl(ip->iomem + reg)
|
||
|
|
|
||
|
|
void lima_bcast_enable(struct lima_device *dev, int num_pp)
|
||
|
|
{
|
||
|
|
struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp;
|
||
|
|
struct lima_ip *ip = dev->ip + lima_ip_bcast;
|
||
|
|
int i, mask = bcast_read(LIMA_BCAST_BROADCAST_MASK) & 0xffff0000;
|
||
|
|
|
||
|
|
for (i = 0; i < num_pp; i++) {
|
||
|
|
struct lima_ip *pp = pipe->processor[i];
|
||
|
|
|
||
|
|
mask |= 1 << (pp->id - lima_ip_pp0);
|
||
|
|
}
|
||
|
|
|
||
|
|
bcast_write(LIMA_BCAST_BROADCAST_MASK, mask);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lima_bcast_hw_init(struct lima_ip *ip)
|
||
|
|
{
|
||
|
|
bcast_write(LIMA_BCAST_BROADCAST_MASK, ip->data.mask << 16);
|
||
|
|
bcast_write(LIMA_BCAST_INTERRUPT_MASK, ip->data.mask);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int lima_bcast_resume(struct lima_ip *ip)
|
||
|
|
{
|
||
|
|
return lima_bcast_hw_init(ip);
|
||
|
|
}
|
||
|
|
|
||
|
|
void lima_bcast_suspend(struct lima_ip *ip)
|
||
|
|
{
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
int lima_bcast_mask_irq(struct lima_ip *ip)
|
||
|
|
{
|
||
|
|
bcast_write(LIMA_BCAST_BROADCAST_MASK, 0);
|
||
|
|
bcast_write(LIMA_BCAST_INTERRUPT_MASK, 0);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int lima_bcast_reset(struct lima_ip *ip)
|
||
|
|
{
|
||
|
|
return lima_bcast_hw_init(ip);
|
||
|
|
}
|
||
|
|
|
||
|
|
int lima_bcast_init(struct lima_ip *ip)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
for (i = lima_ip_pp0; i <= lima_ip_pp7; i++) {
|
||
|
|
if (ip->dev->ip[i].present)
|
||
|
|
ip->data.mask |= 1 << (i - lima_ip_pp0);
|
||
|
|
}
|
||
|
|
|
||
|
|
return lima_bcast_hw_init(ip);
|
||
|
|
}
|
||
|
|
|
||
|
|
void lima_bcast_fini(struct lima_ip *ip)
|
||
|
|
{
|
||
|
|
|
||
|
|
}
|
||
|
|
|