xref: /openbmc/linux/drivers/gpu/drm/msm/adreno/a6xx_gpu.h (revision 55eb9a6c)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2017, 2019 The Linux Foundation. All rights reserved. */
3 
4 #ifndef __A6XX_GPU_H__
5 #define __A6XX_GPU_H__
6 
7 
8 #include "adreno_gpu.h"
9 #include "a6xx.xml.h"
10 
11 #include "a6xx_gmu.h"
12 
13 extern bool hang_debug;
14 
15 struct a6xx_gpu {
16 	struct adreno_gpu base;
17 
18 	struct drm_gem_object *sqe_bo;
19 	uint64_t sqe_iova;
20 
21 	struct msm_ringbuffer *cur_ring;
22 
23 	struct a6xx_gmu gmu;
24 
25 	struct drm_gem_object *shadow_bo;
26 	uint64_t shadow_iova;
27 	uint32_t *shadow;
28 
29 	bool has_whereami;
30 
31 	void __iomem *llc_mmio;
32 	void *llc_slice;
33 	void *htw_llc_slice;
34 	bool have_mmu500;
35 };
36 
37 #define to_a6xx_gpu(x) container_of(x, struct a6xx_gpu, base)
38 
39 /*
40  * Given a register and a count, return a value to program into
41  * REG_CP_PROTECT_REG(n) - this will block both reads and writes for _len
42  * registers starting at _reg.
43  */
44 #define A6XX_PROTECT_NORDWR(_reg, _len) \
45 	((1 << 31) | \
46 	(((_len) & 0x3FFF) << 18) | ((_reg) & 0x3FFFF))
47 
48 /*
49  * Same as above, but allow reads over the range. For areas of mixed use (such
50  * as performance counters) this allows us to protect a much larger range with a
51  * single register
52  */
53 #define A6XX_PROTECT_RDONLY(_reg, _len) \
54 	((((_len) & 0x3FFF) << 18) | ((_reg) & 0x3FFFF))
55 
56 static inline bool a6xx_has_gbif(struct adreno_gpu *gpu)
57 {
58 	if(adreno_is_a630(gpu))
59 		return false;
60 
61 	return true;
62 }
63 
64 #define shadowptr(_a6xx_gpu, _ring) ((_a6xx_gpu)->shadow_iova + \
65 		((_ring)->id * sizeof(uint32_t)))
66 
67 int a6xx_gmu_resume(struct a6xx_gpu *gpu);
68 int a6xx_gmu_stop(struct a6xx_gpu *gpu);
69 
70 int a6xx_gmu_wait_for_idle(struct a6xx_gmu *gmu);
71 
72 bool a6xx_gmu_isidle(struct a6xx_gmu *gmu);
73 
74 int a6xx_gmu_set_oob(struct a6xx_gmu *gmu, enum a6xx_gmu_oob_state state);
75 void a6xx_gmu_clear_oob(struct a6xx_gmu *gmu, enum a6xx_gmu_oob_state state);
76 
77 int a6xx_gmu_init(struct a6xx_gpu *a6xx_gpu, struct device_node *node);
78 void a6xx_gmu_remove(struct a6xx_gpu *a6xx_gpu);
79 
80 void a6xx_gmu_set_freq(struct msm_gpu *gpu, struct dev_pm_opp *opp);
81 unsigned long a6xx_gmu_get_freq(struct msm_gpu *gpu);
82 
83 void a6xx_show(struct msm_gpu *gpu, struct msm_gpu_state *state,
84 		struct drm_printer *p);
85 
86 struct msm_gpu_state *a6xx_gpu_state_get(struct msm_gpu *gpu);
87 int a6xx_gpu_state_put(struct msm_gpu_state *state);
88 
89 #endif /* __A6XX_GPU_H__ */
90