linux/drivers/gpu/drm/lima/lima_dlbu.c
Qiang Yu 3446d7e988 drm/lima: add resume/suspend callback for each ip
For called when PM do resume/suspend.

Tested-by: Bhushan Shah <bshah@kde.org>
Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200421133551.31481-8-yuq825@gmail.com
2020-04-24 20:51:10 +08:00

74 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_dlbu.h"
#include "lima_vm.h"
#include "lima_regs.h"
#define dlbu_write(reg, data) writel(data, ip->iomem + reg)
#define dlbu_read(reg) readl(ip->iomem + reg)
void lima_dlbu_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_dlbu;
int i, mask = 0;
for (i = 0; i < num_pp; i++) {
struct lima_ip *pp = pipe->processor[i];
mask |= 1 << (pp->id - lima_ip_pp0);
}
dlbu_write(LIMA_DLBU_PP_ENABLE_MASK, mask);
}
void lima_dlbu_disable(struct lima_device *dev)
{
struct lima_ip *ip = dev->ip + lima_ip_dlbu;
dlbu_write(LIMA_DLBU_PP_ENABLE_MASK, 0);
}
void lima_dlbu_set_reg(struct lima_ip *ip, u32 *reg)
{
dlbu_write(LIMA_DLBU_TLLIST_VBASEADDR, reg[0]);
dlbu_write(LIMA_DLBU_FB_DIM, reg[1]);
dlbu_write(LIMA_DLBU_TLLIST_CONF, reg[2]);
dlbu_write(LIMA_DLBU_START_TILE_POS, reg[3]);
}
static int lima_dlbu_hw_init(struct lima_ip *ip)
{
struct lima_device *dev = ip->dev;
dlbu_write(LIMA_DLBU_MASTER_TLLIST_PHYS_ADDR, dev->dlbu_dma | 1);
dlbu_write(LIMA_DLBU_MASTER_TLLIST_VADDR, LIMA_VA_RESERVE_DLBU);
return 0;
}
int lima_dlbu_resume(struct lima_ip *ip)
{
return lima_dlbu_hw_init(ip);
}
void lima_dlbu_suspend(struct lima_ip *ip)
{
}
int lima_dlbu_init(struct lima_ip *ip)
{
return lima_dlbu_hw_init(ip);
}
void lima_dlbu_fini(struct lima_ip *ip)
{
}