diff options
Diffstat (limited to 'drivers/gpu/nvgpu/gv100/mm_gv100.c')
-rw-r--r-- | drivers/gpu/nvgpu/gv100/mm_gv100.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/gv100/mm_gv100.c b/drivers/gpu/nvgpu/gv100/mm_gv100.c new file mode 100644 index 00000000..1b46faae --- /dev/null +++ b/drivers/gpu/nvgpu/gv100/mm_gv100.c | |||
@@ -0,0 +1,55 @@ | |||
1 | /* | ||
2 | * GV100 memory management | ||
3 | * | ||
4 | * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved. | ||
5 | * | ||
6 | * Permission is hereby granted, free of charge, to any person obtaining a | ||
7 | * copy of this software and associated documentation files (the "Software"), | ||
8 | * to deal in the Software without restriction, including without limitation | ||
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
10 | * and/or sell copies of the Software, and to permit persons to whom the | ||
11 | * Software is furnished to do so, subject to the following conditions: | ||
12 | * | ||
13 | * The above copyright notice and this permission notice shall be included in | ||
14 | * all copies or substantial portions of the Software. | ||
15 | * | ||
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
21 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
22 | * DEALINGS IN THE SOFTWARE. | ||
23 | */ | ||
24 | |||
25 | #include "gk20a/gk20a.h" | ||
26 | #include "gv100/mm_gv100.h" | ||
27 | |||
28 | #include <nvgpu/hw/gv100/hw_fb_gv100.h> | ||
29 | |||
30 | size_t gv100_mm_get_vidmem_size(struct gk20a *g) | ||
31 | { | ||
32 | u32 range = gk20a_readl(g, fb_mmu_local_memory_range_r()); | ||
33 | u32 mag = fb_mmu_local_memory_range_lower_mag_v(range); | ||
34 | u32 scale = fb_mmu_local_memory_range_lower_scale_v(range); | ||
35 | u32 ecc = fb_mmu_local_memory_range_ecc_mode_v(range); | ||
36 | size_t bytes = ((size_t)mag << scale) * SZ_1M; | ||
37 | |||
38 | if (ecc) | ||
39 | bytes = bytes / 16 * 15; | ||
40 | |||
41 | return bytes; | ||
42 | } | ||
43 | |||
44 | u32 gv100_mm_get_flush_retries(struct gk20a *g, enum nvgpu_flush_op op) | ||
45 | { | ||
46 | switch (op) { | ||
47 | /* GV100 has a large FB so it needs larger timeouts */ | ||
48 | case NVGPU_FLUSH_FB: | ||
49 | return 2000; | ||
50 | case NVGPU_FLUSH_L2_FLUSH: | ||
51 | return 2000; | ||
52 | default: | ||
53 | return 200; /* Default retry timer */ | ||
54 | } | ||
55 | } | ||