| 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_bcast.h" |
| 9 | #include "lima_regs.h" |
| 10 | |
| 11 | #define bcast_write(reg, data) writel(data, ip->iomem + reg) |
| 12 | #define bcast_read(reg) readl(ip->iomem + reg) |
| 13 | |
| 14 | void lima_bcast_enable(struct lima_device *dev, int num_pp) |
| 15 | { |
| 16 | struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp; |
| 17 | struct lima_ip *ip = dev->ip + lima_ip_bcast; |
| 18 | int i, mask = bcast_read(LIMA_BCAST_BROADCAST_MASK) & 0xffff0000; |
| 19 | |
| 20 | for (i = 0; i < num_pp; i++) { |
| 21 | struct lima_ip *pp = pipe->processor[i]; |
| 22 | |
| 23 | mask |= 1 << (pp->id - lima_ip_pp0); |
| 24 | } |
| 25 | |
| 26 | bcast_write(LIMA_BCAST_BROADCAST_MASK, mask); |
| 27 | } |
| 28 | |
| 29 | static int lima_bcast_hw_init(struct lima_ip *ip) |
| 30 | { |
| 31 | bcast_write(LIMA_BCAST_BROADCAST_MASK, ip->data.mask << 16); |
| 32 | bcast_write(LIMA_BCAST_INTERRUPT_MASK, ip->data.mask); |
| 33 | return 0; |
| 34 | } |
| 35 | |
| 36 | int lima_bcast_resume(struct lima_ip *ip) |
| 37 | { |
| 38 | return lima_bcast_hw_init(ip); |
| 39 | } |
| 40 | |
| 41 | void lima_bcast_suspend(struct lima_ip *ip) |
| 42 | { |
| 43 | |
| 44 | } |
| 45 | |
| 46 | int lima_bcast_init(struct lima_ip *ip) |
| 47 | { |
| 48 | int i; |
| 49 | |
| 50 | for (i = lima_ip_pp0; i <= lima_ip_pp7; i++) { |
| 51 | if (ip->dev->ip[i].present) |
| 52 | ip->data.mask |= 1 << (i - lima_ip_pp0); |
| 53 | } |
| 54 | |
| 55 | return lima_bcast_hw_init(ip); |
| 56 | } |
| 57 | |
| 58 | void lima_bcast_fini(struct lima_ip *ip) |
| 59 | { |
| 60 | |
| 61 | } |
| 62 | |
| 63 |