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- // 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)
- {
- }
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