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-rw-r--r--include/os/linux/os_linux.h187
1 files changed, 187 insertions, 0 deletions
diff --git a/include/os/linux/os_linux.h b/include/os/linux/os_linux.h
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1/*
2 * Copyright (c) 2017-2020, 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 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16
17#ifndef NVGPU_OS_LINUX_H
18#define NVGPU_OS_LINUX_H
19
20#include <linux/cdev.h>
21#include <linux/iommu.h>
22#include <linux/hashtable.h>
23
24#include <nvgpu/gk20a.h>
25
26#include "cde.h"
27#include "sched.h"
28
29struct nvgpu_os_linux_ops {
30 struct {
31 void (*get_program_numbers)(struct gk20a *g,
32 u32 block_height_log2,
33 u32 shader_parameter,
34 int *hprog, int *vprog);
35 bool (*need_scatter_buffer)(struct gk20a *g);
36 int (*populate_scatter_buffer)(struct gk20a *g,
37 struct sg_table *sgt,
38 size_t surface_size,
39 void *scatter_buffer_ptr,
40 size_t scatter_buffer_size);
41 } cde;
42
43 struct {
44 int (*init_debugfs)(struct gk20a *g);
45 } clk;
46
47 struct {
48 int (*init_debugfs)(struct gk20a *g);
49 } therm;
50
51 struct {
52 int (*init_debugfs)(struct gk20a *g);
53 } fecs_trace;
54};
55
56struct nvgpu_os_linux {
57 struct gk20a g;
58 struct device *dev;
59
60 struct {
61 struct cdev cdev;
62 struct device *node;
63 } channel;
64
65 struct {
66 struct cdev cdev;
67 struct device *node;
68 /* see gk20a_ctrl_priv */
69 struct nvgpu_list_node privs;
70 /* guards modifications to the list and its contents */
71 struct nvgpu_mutex privs_lock;
72 } ctrl;
73
74 struct {
75 struct cdev cdev;
76 struct device *node;
77 } as_dev;
78
79 struct {
80 struct cdev cdev;
81 struct device *node;
82 } dbg;
83
84 struct {
85 struct cdev cdev;
86 struct device *node;
87 } prof;
88
89 struct {
90 struct cdev cdev;
91 struct device *node;
92 } tsg;
93
94 struct {
95 struct cdev cdev;
96 struct device *node;
97 } ctxsw;
98
99 struct {
100 struct cdev cdev;
101 struct device *node;
102 } sched;
103
104 dev_t cdev_region;
105
106 struct devfreq *devfreq;
107
108 struct device_dma_parameters dma_parms;
109
110 atomic_t hw_irq_stall_count;
111 atomic_t hw_irq_nonstall_count;
112
113 struct nvgpu_cond sw_irq_stall_last_handled_wq;
114 atomic_t sw_irq_stall_last_handled;
115
116 atomic_t nonstall_ops;
117
118 struct nvgpu_cond sw_irq_nonstall_last_handled_wq;
119 atomic_t sw_irq_nonstall_last_handled;
120
121 struct work_struct nonstall_fn_work;
122 struct workqueue_struct *nonstall_work_queue;
123
124 struct resource *reg_mem;
125 void __iomem *regs;
126 void __iomem *regs_saved;
127
128 struct resource *bar1_mem;
129 void __iomem *bar1;
130 void __iomem *bar1_saved;
131
132 void __iomem *usermode_regs;
133 void __iomem *usermode_regs_saved;
134
135 u64 regs_bus_addr;
136
137 struct nvgpu_os_linux_ops ops;
138
139#ifdef CONFIG_DEBUG_FS
140 struct dentry *debugfs;
141 struct dentry *debugfs_alias;
142
143 struct dentry *debugfs_ltc_enabled;
144 struct dentry *debugfs_timeouts_enabled;
145 struct dentry *debugfs_gr_idle_timeout_default;
146 struct dentry *debugfs_disable_bigpage;
147 struct dentry *debugfs_gr_default_attrib_cb_size;
148
149 struct dentry *debugfs_timeslice_low_priority_us;
150 struct dentry *debugfs_timeslice_medium_priority_us;
151 struct dentry *debugfs_timeslice_high_priority_us;
152 struct dentry *debugfs_runlist_interleave;
153 struct dentry *debugfs_allocators;
154 struct dentry *debugfs_xve;
155 struct dentry *debugfs_kmem;
156 struct dentry *debugfs_hal;
157 struct dentry *debugfs_ltc;
158
159 struct dentry *debugfs_force_preemption_cilp;
160 struct dentry *debugfs_force_preemption_gfxp;
161 struct dentry *debugfs_dump_ctxsw_stats;
162#endif
163 DECLARE_HASHTABLE(ecc_sysfs_stats_htable, 5);
164 struct dev_ext_attribute *ecc_attrs;
165
166 struct gk20a_cde_app cde_app;
167
168 struct rw_semaphore busy_lock;
169
170 bool init_done;
171};
172
173static inline struct nvgpu_os_linux *nvgpu_os_linux_from_gk20a(struct gk20a *g)
174{
175 return container_of(g, struct nvgpu_os_linux, g);
176}
177
178static inline struct device *dev_from_gk20a(struct gk20a *g)
179{
180 return nvgpu_os_linux_from_gk20a(g)->dev;
181}
182
183#define INTERFACE_NAME "nvhost%s-gpu"
184
185#define totalram_size_in_mb (totalram_pages >> (10 - (PAGE_SHIFT - 10)))
186
187#endif
generated by cgit v1.2.2 (git 2.25.0) at 2026-10-08 04:57:38 -0400