xref: /openbmc/linux/drivers/gpu/drm/msm/adreno/a5xx_gpu.h (revision 8d6f0827)
1 /* Copyright (c) 2016 The Linux Foundation. All rights reserved.
2  *
3  * This program is free software; you can redistribute it and/or modify
4  * it under the terms of the GNU General Public License version 2 and
5  * only version 2 as published by the Free Software Foundation.
6  *
7  * This program is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
10  * GNU General Public License for more details.
11  *
12  */
13 #ifndef __A5XX_GPU_H__
14 #define __A5XX_GPU_H__
15 
16 #include "adreno_gpu.h"
17 
18 /* Bringing over the hack from the previous targets */
19 #undef ROP_COPY
20 #undef ROP_XOR
21 
22 #include "a5xx.xml.h"
23 
24 struct a5xx_gpu {
25 	struct adreno_gpu base;
26 
27 	struct drm_gem_object *pm4_bo;
28 	uint64_t pm4_iova;
29 
30 	struct drm_gem_object *pfp_bo;
31 	uint64_t pfp_iova;
32 
33 	struct drm_gem_object *gpmu_bo;
34 	uint64_t gpmu_iova;
35 	uint32_t gpmu_dwords;
36 
37 	uint32_t lm_leakage;
38 };
39 
40 #define to_a5xx_gpu(x) container_of(x, struct a5xx_gpu, base)
41 
42 int a5xx_power_init(struct msm_gpu *gpu);
43 void a5xx_gpmu_ucode_init(struct msm_gpu *gpu);
44 
45 static inline int spin_usecs(struct msm_gpu *gpu, uint32_t usecs,
46 		uint32_t reg, uint32_t mask, uint32_t value)
47 {
48 	while (usecs--) {
49 		udelay(1);
50 		if ((gpu_read(gpu, reg) & mask) == value)
51 			return 0;
52 		cpu_relax();
53 	}
54 
55 	return -ETIMEDOUT;
56 }
57 
58 bool a5xx_idle(struct msm_gpu *gpu);
59 void a5xx_set_hwcg(struct msm_gpu *gpu, bool state);
60 
61 #endif /* __A5XX_GPU_H__ */
62