diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/gpu/nvgpu/gp10b/Makefile | 3 | ||||
-rw-r--r-- | drivers/gpu/nvgpu/gp10b/mm_gp10b.c | 3 | ||||
-rw-r--r-- | drivers/gpu/nvgpu/gp10b/rpfb_gp10b.c | 146 | ||||
-rw-r--r-- | drivers/gpu/nvgpu/gp10b/rpfb_gp10b.h | 30 |
4 files changed, 181 insertions, 1 deletions
diff --git a/drivers/gpu/nvgpu/gp10b/Makefile b/drivers/gpu/nvgpu/gp10b/Makefile index e44aaeca..9d0c0311 100644 --- a/drivers/gpu/nvgpu/gp10b/Makefile +++ b/drivers/gpu/nvgpu/gp10b/Makefile | |||
@@ -19,6 +19,7 @@ obj-$(CONFIG_GK20A) += \ | |||
19 | mm_gp10b.o \ | 19 | mm_gp10b.o \ |
20 | fb_gp10b.o \ | 20 | fb_gp10b.o \ |
21 | pmu_gp10b.o \ | 21 | pmu_gp10b.o \ |
22 | hal_gp10b.o | 22 | hal_gp10b.o \ |
23 | rpfb_gp10b.o | ||
23 | 24 | ||
24 | obj-$(CONFIG_TEGRA_GK20A) += platform_gp10b_tegra.o | 25 | obj-$(CONFIG_TEGRA_GK20A) += platform_gp10b_tegra.o |
diff --git a/drivers/gpu/nvgpu/gp10b/mm_gp10b.c b/drivers/gpu/nvgpu/gp10b/mm_gp10b.c index 293eb999..65bc6cbc 100644 --- a/drivers/gpu/nvgpu/gp10b/mm_gp10b.c +++ b/drivers/gpu/nvgpu/gp10b/mm_gp10b.c | |||
@@ -17,6 +17,7 @@ | |||
17 | #include <linux/dma-mapping.h> | 17 | #include <linux/dma-mapping.h> |
18 | #include "gk20a/gk20a.h" | 18 | #include "gk20a/gk20a.h" |
19 | #include "mm_gp10b.h" | 19 | #include "mm_gp10b.h" |
20 | #include "rpfb_gp10b.h" | ||
20 | #include "hw_ram_gp10b.h" | 21 | #include "hw_ram_gp10b.h" |
21 | #include "hw_bus_gp10b.h" | 22 | #include "hw_bus_gp10b.h" |
22 | 23 | ||
@@ -53,6 +54,8 @@ static int gp10b_init_mm_setup_hw(struct gk20a *g) | |||
53 | if (gk20a_mm_fb_flush(g) || gk20a_mm_fb_flush(g)) | 54 | if (gk20a_mm_fb_flush(g) || gk20a_mm_fb_flush(g)) |
54 | return -EBUSY; | 55 | return -EBUSY; |
55 | 56 | ||
57 | err = gp10b_replayable_pagefault_buffer_init(g); | ||
58 | |||
56 | gk20a_dbg_fn("done"); | 59 | gk20a_dbg_fn("done"); |
57 | return err; | 60 | return err; |
58 | 61 | ||
diff --git a/drivers/gpu/nvgpu/gp10b/rpfb_gp10b.c b/drivers/gpu/nvgpu/gp10b/rpfb_gp10b.c new file mode 100644 index 00000000..ba91403c --- /dev/null +++ b/drivers/gpu/nvgpu/gp10b/rpfb_gp10b.c | |||
@@ -0,0 +1,146 @@ | |||
1 | /* | ||
2 | * GP10B RPFB | ||
3 | * | ||
4 | * Copyright (c) 2015, NVIDIA CORPORATION. All rights reserved. | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify it | ||
7 | * under the terms and conditions of the GNU General Public License, | ||
8 | * version 2, as published by the Free Software Foundation. | ||
9 | * | ||
10 | * This program is distributed in the hope it will be useful, but WITHOUT | ||
11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
13 | * more details. | ||
14 | */ | ||
15 | |||
16 | #include <linux/pm_runtime.h> | ||
17 | #include <linux/dma-mapping.h> | ||
18 | #include "gk20a/gk20a.h" | ||
19 | #include "rpfb_gp10b.h" | ||
20 | #include "hw_fifo_gp10b.h" | ||
21 | #include "hw_fb_gp10b.h" | ||
22 | #include "hw_bus_gp10b.h" | ||
23 | #include "hw_gmmu_gp10b.h" | ||
24 | |||
25 | int gp10b_replayable_pagefault_buffer_init(struct gk20a *g) | ||
26 | { | ||
27 | u32 addr_lo; | ||
28 | u32 addr_hi; | ||
29 | struct vm_gk20a *vm = &g->mm.bar2.vm; | ||
30 | int err; | ||
31 | size_t rbfb_size = NV_UVM_FAULT_BUF_SIZE * | ||
32 | fifo_replay_fault_buffer_size_hw_entries_v(); | ||
33 | |||
34 | gk20a_dbg_fn(""); | ||
35 | |||
36 | err = gk20a_gmmu_alloc_map(vm, rbfb_size, &g->mm.bar2_desc); | ||
37 | if (err) { | ||
38 | dev_err(dev_from_gk20a(g), "%s Error in replayable fault buffer\n", | ||
39 | __func__); | ||
40 | return err; | ||
41 | } | ||
42 | addr_lo = u64_lo32(g->mm.bar2_desc.gpu_va >> 12); | ||
43 | addr_hi = u64_hi32(g->mm.bar2_desc.gpu_va); | ||
44 | gk20a_writel(g, fifo_replay_fault_buffer_hi_r(), | ||
45 | fifo_replay_fault_buffer_hi_base_f(addr_hi)); | ||
46 | |||
47 | gk20a_writel(g, fifo_replay_fault_buffer_lo_r(), | ||
48 | fifo_replay_fault_buffer_lo_base_f(addr_lo) | | ||
49 | fifo_replay_fault_buffer_lo_enable_true_v()); | ||
50 | |||
51 | gk20a_dbg_fn("done"); | ||
52 | return 0; | ||
53 | } | ||
54 | |||
55 | void gp10b_replayable_pagefault_buffer_deinit(struct gk20a *g) | ||
56 | { | ||
57 | struct vm_gk20a *vm = &g->mm.bar2.vm; | ||
58 | gk20a_gmmu_unmap_free(vm, &g->mm.bar2_desc); | ||
59 | } | ||
60 | |||
61 | u32 gp10b_replayable_pagefault_buffer_get_index(struct gk20a *g) | ||
62 | { | ||
63 | u32 get_idx = 0; | ||
64 | gk20a_dbg_fn(""); | ||
65 | |||
66 | get_idx = gk20a_readl(g, fifo_replay_fault_buffer_get_r()); | ||
67 | |||
68 | if (get_idx >= fifo_replay_fault_buffer_size_hw_entries_v()) | ||
69 | dev_err(dev_from_gk20a(g), "%s Error in replayable fault buffer\n", | ||
70 | __func__); | ||
71 | gk20a_dbg_fn("done"); | ||
72 | return get_idx; | ||
73 | } | ||
74 | |||
75 | u32 gp10b_replayable_pagefault_buffer_put_index(struct gk20a *g) | ||
76 | { | ||
77 | u32 put_idx = 0; | ||
78 | |||
79 | gk20a_dbg_fn(""); | ||
80 | put_idx = gk20a_readl(g, fifo_replay_fault_buffer_put_r()); | ||
81 | |||
82 | if (put_idx >= fifo_replay_fault_buffer_size_hw_entries_v()) | ||
83 | dev_err(dev_from_gk20a(g), "%s Error in UVM\n", | ||
84 | __func__); | ||
85 | gk20a_dbg_fn("done"); | ||
86 | return put_idx; | ||
87 | } | ||
88 | |||
89 | bool gp10b_replayable_pagefault_buffer_is_empty(struct gk20a *g) | ||
90 | { | ||
91 | u32 get_idx = gk20a_readl(g, fifo_replay_fault_buffer_get_r()); | ||
92 | u32 put_idx = gk20a_readl(g, fifo_replay_fault_buffer_put_r()); | ||
93 | |||
94 | return (get_idx == put_idx ? true : false); | ||
95 | } | ||
96 | |||
97 | bool gp10b_replayable_pagefault_buffer_is_full(struct gk20a *g) | ||
98 | { | ||
99 | u32 get_idx = gk20a_readl(g, fifo_replay_fault_buffer_get_r()); | ||
100 | u32 put_idx = gk20a_readl(g, fifo_replay_fault_buffer_put_r()); | ||
101 | u32 hw_entries = gk20a_readl(g, fifo_replay_fault_buffer_size_r()); | ||
102 | |||
103 | return (get_idx == ((put_idx + 1) % hw_entries) ? true : false); | ||
104 | } | ||
105 | |||
106 | bool gp10b_replayable_pagefault_buffer_is_overflow(struct gk20a *g) | ||
107 | { | ||
108 | u32 info = gk20a_readl(g, fifo_replay_fault_buffer_info_r()); | ||
109 | |||
110 | return fifo_replay_fault_buffer_info_overflow_f(info); | ||
111 | } | ||
112 | |||
113 | void gp10b_replayable_pagefault_buffer_clear_overflow(struct gk20a *g) | ||
114 | { | ||
115 | u32 info = gk20a_readl(g, fifo_replay_fault_buffer_info_r()); | ||
116 | |||
117 | info |= fifo_replay_fault_buffer_info_overflow_clear_v(); | ||
118 | gk20a_writel(g, fifo_replay_fault_buffer_info_r(), info); | ||
119 | |||
120 | } | ||
121 | |||
122 | void gp10b_replayable_pagefault_buffer_info(struct gk20a *g) | ||
123 | { | ||
124 | |||
125 | gk20a_dbg_fn(""); | ||
126 | pr_info("rpfb low: 0x%x\n", | ||
127 | (gk20a_readl(g, fifo_replay_fault_buffer_lo_r()) >> 12)); | ||
128 | pr_info("rpfb hi: 0x%x\n", | ||
129 | gk20a_readl(g, fifo_replay_fault_buffer_hi_r())); | ||
130 | pr_info("rpfb enabled: 0x%x\n", | ||
131 | (gk20a_readl(g, fifo_replay_fault_buffer_lo_r()) & 0x1)); | ||
132 | pr_info("rpfb size: %d\n", | ||
133 | gk20a_readl(g, fifo_replay_fault_buffer_size_r())); | ||
134 | pr_info("rpfb get index: %d\n", | ||
135 | gp10b_replayable_pagefault_buffer_get_index(g)); | ||
136 | pr_info("rpfb put index: %d\n", | ||
137 | gp10b_replayable_pagefault_buffer_put_index(g)); | ||
138 | pr_info("rpfb empty: %d\n", | ||
139 | gp10b_replayable_pagefault_buffer_is_empty(g)); | ||
140 | pr_info("rpfb full %d\n", | ||
141 | gp10b_replayable_pagefault_buffer_is_full(g)); | ||
142 | pr_info("rpfb overflow %d\n", | ||
143 | gp10b_replayable_pagefault_buffer_is_overflow(g)); | ||
144 | |||
145 | gk20a_dbg_fn("done"); | ||
146 | } | ||
diff --git a/drivers/gpu/nvgpu/gp10b/rpfb_gp10b.h b/drivers/gpu/nvgpu/gp10b/rpfb_gp10b.h new file mode 100644 index 00000000..965c9573 --- /dev/null +++ b/drivers/gpu/nvgpu/gp10b/rpfb_gp10b.h | |||
@@ -0,0 +1,30 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2015, NVIDIA CORPORATION. All rights reserved. | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify it | ||
5 | * under the terms and conditions of the GNU General Public License, | ||
6 | * version 2, as published by the Free Software Foundation. | ||
7 | * | ||
8 | * This program is distributed in the hope it will be useful, but WITHOUT | ||
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
11 | * more details. | ||
12 | */ | ||
13 | |||
14 | #ifndef RPFB_GP20B_H | ||
15 | #define RPFB_GP20B_H | ||
16 | struct gk20a; | ||
17 | |||
18 | #define NV_UVM_FAULT_BUF_SIZE 32 | ||
19 | |||
20 | int gp10b_replayable_pagefault_buffer_init(struct gk20a *g); | ||
21 | u32 gp10b_replayable_pagefault_buffer_get_index(struct gk20a *g); | ||
22 | u32 gp10b_replayable_pagefault_buffer_put_index(struct gk20a *g); | ||
23 | bool gp10b_replayable_pagefault_buffer_is_empty(struct gk20a *g); | ||
24 | bool gp10b_replayable_pagefault_buffer_is_full(struct gk20a *g); | ||
25 | bool gp10b_replayable_pagefault_buffer_is_overflow(struct gk20a *g); | ||
26 | void gp10b_replayable_pagefault_buffer_clear_overflow(struct gk20a *g); | ||
27 | void gp10b_replayable_pagefault_buffer_info(struct gk20a *g); | ||
28 | void gp10b_replayable_pagefault_buffer_deinit(struct gk20a *g); | ||
29 | |||
30 | #endif | ||