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_dlbu.h" |
9 | #include "lima_vm.h" |
10 | #include "lima_regs.h" |
11 | |
12 | #define dlbu_write(reg, data) writel(data, ip->iomem + reg) |
13 | #define dlbu_read(reg) readl(ip->iomem + reg) |
14 | |
15 | void lima_dlbu_enable(struct lima_device *dev, int num_pp) |
16 | { |
17 | struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp; |
18 | struct lima_ip *ip = dev->ip + lima_ip_dlbu; |
19 | int i, mask = 0; |
20 | |
21 | for (i = 0; i < num_pp; i++) { |
22 | struct lima_ip *pp = pipe->processor[i]; |
23 | |
24 | mask |= 1 << (pp->id - lima_ip_pp0); |
25 | } |
26 | |
27 | dlbu_write(LIMA_DLBU_PP_ENABLE_MASK, mask); |
28 | } |
29 | |
30 | void lima_dlbu_disable(struct lima_device *dev) |
31 | { |
32 | struct lima_ip *ip = dev->ip + lima_ip_dlbu; |
33 | |
34 | dlbu_write(LIMA_DLBU_PP_ENABLE_MASK, 0); |
35 | } |
36 | |
37 | void lima_dlbu_set_reg(struct lima_ip *ip, u32 *reg) |
38 | { |
39 | dlbu_write(LIMA_DLBU_TLLIST_VBASEADDR, reg[0]); |
40 | dlbu_write(LIMA_DLBU_FB_DIM, reg[1]); |
41 | dlbu_write(LIMA_DLBU_TLLIST_CONF, reg[2]); |
42 | dlbu_write(LIMA_DLBU_START_TILE_POS, reg[3]); |
43 | } |
44 | |
45 | static int lima_dlbu_hw_init(struct lima_ip *ip) |
46 | { |
47 | struct lima_device *dev = ip->dev; |
48 | |
49 | dlbu_write(LIMA_DLBU_MASTER_TLLIST_PHYS_ADDR, dev->dlbu_dma | 1); |
50 | dlbu_write(LIMA_DLBU_MASTER_TLLIST_VADDR, LIMA_VA_RESERVE_DLBU); |
51 | |
52 | return 0; |
53 | } |
54 | |
55 | int lima_dlbu_resume(struct lima_ip *ip) |
56 | { |
57 | return lima_dlbu_hw_init(ip); |
58 | } |
59 | |
60 | void lima_dlbu_suspend(struct lima_ip *ip) |
61 | { |
62 | |
63 | } |
64 | |
65 | int lima_dlbu_init(struct lima_ip *ip) |
66 | { |
67 | return lima_dlbu_hw_init(ip); |
68 | } |
69 | |
70 | void lima_dlbu_fini(struct lima_ip *ip) |
71 | { |
72 | |
73 | } |
74 | |