diff options
Diffstat (limited to 'drivers/gpu/nvgpu/include')
-rw-r--r-- | drivers/gpu/nvgpu/include/nvgpu/ptimer.h | 18 | ||||
-rw-r--r-- | drivers/gpu/nvgpu/include/nvgpu/utils.h | 52 |
2 files changed, 69 insertions, 1 deletions
diff --git a/drivers/gpu/nvgpu/include/nvgpu/ptimer.h b/drivers/gpu/nvgpu/include/nvgpu/ptimer.h index 54c6b20c..598e064f 100644 --- a/drivers/gpu/nvgpu/include/nvgpu/ptimer.h +++ b/drivers/gpu/nvgpu/include/nvgpu/ptimer.h | |||
@@ -31,8 +31,24 @@ struct nvgpu_cpu_time_correlation_sample { | |||
31 | u64 gpu_timestamp; | 31 | u64 gpu_timestamp; |
32 | }; | 32 | }; |
33 | 33 | ||
34 | /* PTIMER_REF_FREQ_HZ corresponds to a period of 32 nanoseconds. | ||
35 | 32 ns is the resolution of ptimer. */ | ||
36 | #define PTIMER_REF_FREQ_HZ 31250000 | ||
37 | |||
38 | static inline u32 ptimer_scalingfactor10x(u32 ptimer_src_freq) | ||
39 | { | ||
40 | return (u32)(((u64)(PTIMER_REF_FREQ_HZ * 10)) / ptimer_src_freq); | ||
41 | } | ||
42 | |||
43 | static inline u32 scale_ptimer(u32 timeout , u32 scale10x) | ||
44 | { | ||
45 | if (((timeout*10) % scale10x) >= (scale10x/2)) | ||
46 | return ((timeout * 10) / scale10x) + 1; | ||
47 | else | ||
48 | return (timeout * 10) / scale10x; | ||
49 | } | ||
50 | |||
34 | int nvgpu_get_timestamps_zipper(struct gk20a *g, | 51 | int nvgpu_get_timestamps_zipper(struct gk20a *g, |
35 | u32 source_id, u32 count, | 52 | u32 source_id, u32 count, |
36 | struct nvgpu_cpu_time_correlation_sample *samples); | 53 | struct nvgpu_cpu_time_correlation_sample *samples); |
37 | |||
38 | #endif | 54 | #endif |
diff --git a/drivers/gpu/nvgpu/include/nvgpu/utils.h b/drivers/gpu/nvgpu/include/nvgpu/utils.h new file mode 100644 index 00000000..22102fa3 --- /dev/null +++ b/drivers/gpu/nvgpu/include/nvgpu/utils.h | |||
@@ -0,0 +1,52 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved. | ||
3 | * | ||
4 | * Permission is hereby granted, free of charge, to any person obtaining a | ||
5 | * copy of this software and associated documentation files (the "Software"), | ||
6 | * to deal in the Software without restriction, including without limitation | ||
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
8 | * and/or sell copies of the Software, and to permit persons to whom the | ||
9 | * Software is furnished to do so, subject to the following conditions: | ||
10 | * | ||
11 | * The above copyright notice and this permission notice shall be included in | ||
12 | * all copies or substantial portions of the Software. | ||
13 | * | ||
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
17 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
19 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
20 | * DEALINGS IN THE SOFTWARE. | ||
21 | */ | ||
22 | |||
23 | #ifndef NVGPU_UTILS_H | ||
24 | #define NVGPU_UTILS_H | ||
25 | |||
26 | #include <nvgpu/types.h> | ||
27 | |||
28 | static inline u32 u64_hi32(u64 n) | ||
29 | { | ||
30 | return (u32)((n >> 32) & ~(u32)0); | ||
31 | } | ||
32 | |||
33 | static inline u32 u64_lo32(u64 n) | ||
34 | { | ||
35 | return (u32)(n & ~(u32)0); | ||
36 | } | ||
37 | |||
38 | static inline u64 hi32_lo32_to_u64(u32 hi, u32 lo) | ||
39 | { | ||
40 | return (((u64)hi) << 32) | (u64)lo; | ||
41 | } | ||
42 | |||
43 | static inline u32 set_field(u32 val, u32 mask, u32 field) | ||
44 | { | ||
45 | return ((val & ~mask) | field); | ||
46 | } | ||
47 | |||
48 | static inline u32 get_field(u32 reg, u32 mask) | ||
49 | { | ||
50 | return (reg & mask); | ||
51 | } | ||
52 | #endif /* NVGPU_UTILS_H */ | ||