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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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3446d7e988
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
74 lines
1.5 KiB
C
74 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR MIT
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/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
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#include <linux/io.h>
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#include <linux/device.h>
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#include "lima_device.h"
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#include "lima_dlbu.h"
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#include "lima_vm.h"
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#include "lima_regs.h"
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#define dlbu_write(reg, data) writel(data, ip->iomem + reg)
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#define dlbu_read(reg) readl(ip->iomem + reg)
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void lima_dlbu_enable(struct lima_device *dev, int num_pp)
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{
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struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp;
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struct lima_ip *ip = dev->ip + lima_ip_dlbu;
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int i, mask = 0;
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for (i = 0; i < num_pp; i++) {
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struct lima_ip *pp = pipe->processor[i];
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mask |= 1 << (pp->id - lima_ip_pp0);
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}
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dlbu_write(LIMA_DLBU_PP_ENABLE_MASK, mask);
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}
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void lima_dlbu_disable(struct lima_device *dev)
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{
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struct lima_ip *ip = dev->ip + lima_ip_dlbu;
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dlbu_write(LIMA_DLBU_PP_ENABLE_MASK, 0);
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}
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void lima_dlbu_set_reg(struct lima_ip *ip, u32 *reg)
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{
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dlbu_write(LIMA_DLBU_TLLIST_VBASEADDR, reg[0]);
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dlbu_write(LIMA_DLBU_FB_DIM, reg[1]);
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dlbu_write(LIMA_DLBU_TLLIST_CONF, reg[2]);
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dlbu_write(LIMA_DLBU_START_TILE_POS, reg[3]);
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}
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static int lima_dlbu_hw_init(struct lima_ip *ip)
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{
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struct lima_device *dev = ip->dev;
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dlbu_write(LIMA_DLBU_MASTER_TLLIST_PHYS_ADDR, dev->dlbu_dma | 1);
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dlbu_write(LIMA_DLBU_MASTER_TLLIST_VADDR, LIMA_VA_RESERVE_DLBU);
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return 0;
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}
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int lima_dlbu_resume(struct lima_ip *ip)
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{
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return lima_dlbu_hw_init(ip);
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}
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void lima_dlbu_suspend(struct lima_ip *ip)
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{
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}
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int lima_dlbu_init(struct lima_ip *ip)
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{
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return lima_dlbu_hw_init(ip);
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}
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void lima_dlbu_fini(struct lima_ip *ip)
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{
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}
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