diff options
Diffstat (limited to 'drivers/gpu/nvgpu/gp106/fb_gp106.c')
-rw-r--r-- | drivers/gpu/nvgpu/gp106/fb_gp106.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/gp106/fb_gp106.c b/drivers/gpu/nvgpu/gp106/fb_gp106.c new file mode 100644 index 00000000..34e9ee30 --- /dev/null +++ b/drivers/gpu/nvgpu/gp106/fb_gp106.c | |||
@@ -0,0 +1,51 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2016-2017, 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 | #include "gk20a/gk20a.h" | ||
24 | #include "gp10b/fb_gp10b.h" | ||
25 | |||
26 | #include "fb_gp106.h" | ||
27 | |||
28 | #include <nvgpu/hw/gp106/hw_fb_gp106.h> | ||
29 | |||
30 | #define HW_SCRUB_TIMEOUT_DEFAULT 100 /* usec */ | ||
31 | #define HW_SCRUB_TIMEOUT_MAX 2000000 /* usec */ | ||
32 | |||
33 | void gp106_fb_reset(struct gk20a *g) | ||
34 | { | ||
35 | u32 val; | ||
36 | |||
37 | int retries = HW_SCRUB_TIMEOUT_MAX / HW_SCRUB_TIMEOUT_DEFAULT; | ||
38 | /* wait for memory to be accessible */ | ||
39 | do { | ||
40 | u32 w = gk20a_readl(g, fb_niso_scrub_status_r()); | ||
41 | if (fb_niso_scrub_status_flag_v(w)) { | ||
42 | gk20a_dbg_fn("done"); | ||
43 | break; | ||
44 | } | ||
45 | nvgpu_udelay(HW_SCRUB_TIMEOUT_DEFAULT); | ||
46 | } while (--retries); | ||
47 | |||
48 | val = gk20a_readl(g, fb_mmu_priv_level_mask_r()); | ||
49 | val &= ~fb_mmu_priv_level_mask_write_violation_m(); | ||
50 | gk20a_writel(g, fb_mmu_priv_level_mask_r(), val); | ||
51 | } | ||