1 /*
2 * Copyright © 2015 Intel Corporation
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 (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #include <sys/mman.h>
25 #include <sys/syscall.h>
26
27 #include "util/anon_file.h"
28 #include "anv_private.h"
29
30 uint32_t
anv_gem_create(struct anv_device * device,uint64_t size)31 anv_gem_create(struct anv_device *device, uint64_t size)
32 {
33 int fd = os_create_anonymous_file(size, "fake bo");
34 if (fd == -1)
35 return 0;
36
37 assert(fd != 0);
38
39 return fd;
40 }
41
42 void
anv_gem_close(struct anv_device * device,uint32_t gem_handle)43 anv_gem_close(struct anv_device *device, uint32_t gem_handle)
44 {
45 close(gem_handle);
46 }
47
48 void*
anv_gem_mmap(struct anv_device * device,uint32_t gem_handle,uint64_t offset,uint64_t size,uint32_t flags)49 anv_gem_mmap(struct anv_device *device, uint32_t gem_handle,
50 uint64_t offset, uint64_t size, uint32_t flags)
51 {
52 /* Ignore flags, as they're specific to I915_GEM_MMAP. */
53 (void) flags;
54
55 return mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED,
56 gem_handle, offset);
57 }
58
59 /* This is just a wrapper around munmap, but it also notifies valgrind that
60 * this map is no longer valid. Pair this with anv_gem_mmap().
61 */
62 void
anv_gem_munmap(struct anv_device * device,void * p,uint64_t size)63 anv_gem_munmap(struct anv_device *device, void *p, uint64_t size)
64 {
65 munmap(p, size);
66 }
67
68 uint32_t
anv_gem_userptr(struct anv_device * device,void * mem,size_t size)69 anv_gem_userptr(struct anv_device *device, void *mem, size_t size)
70 {
71 int fd = os_create_anonymous_file(size, "fake bo");
72 if (fd == -1)
73 return 0;
74
75 assert(fd != 0);
76
77 return fd;
78 }
79
80 int
anv_gem_wait(struct anv_device * device,uint32_t gem_handle,int64_t * timeout_ns)81 anv_gem_wait(struct anv_device *device, uint32_t gem_handle, int64_t *timeout_ns)
82 {
83 return 0;
84 }
85
86 int
anv_gem_execbuffer(struct anv_device * device,struct drm_i915_gem_execbuffer2 * execbuf)87 anv_gem_execbuffer(struct anv_device *device,
88 struct drm_i915_gem_execbuffer2 *execbuf)
89 {
90 return 0;
91 }
92
93 int
anv_gem_set_tiling(struct anv_device * device,uint32_t gem_handle,uint32_t stride,uint32_t tiling)94 anv_gem_set_tiling(struct anv_device *device,
95 uint32_t gem_handle, uint32_t stride, uint32_t tiling)
96 {
97 return 0;
98 }
99
100 int
anv_gem_get_tiling(struct anv_device * device,uint32_t gem_handle)101 anv_gem_get_tiling(struct anv_device *device, uint32_t gem_handle)
102 {
103 return 0;
104 }
105
106 int
anv_gem_set_caching(struct anv_device * device,uint32_t gem_handle,uint32_t caching)107 anv_gem_set_caching(struct anv_device *device, uint32_t gem_handle,
108 uint32_t caching)
109 {
110 return 0;
111 }
112
113 int
anv_gem_set_context_param(int fd,uint32_t context,uint32_t param,uint64_t value)114 anv_gem_set_context_param(int fd, uint32_t context, uint32_t param, uint64_t value)
115 {
116 unreachable("Unused");
117 }
118
119 bool
anv_gem_has_context_priority(int fd,int priority)120 anv_gem_has_context_priority(int fd, int priority)
121 {
122 unreachable("Unused");
123 }
124
125 int
anv_gem_context_get_reset_stats(int fd,int context,uint32_t * active,uint32_t * pending)126 anv_gem_context_get_reset_stats(int fd, int context,
127 uint32_t *active, uint32_t *pending)
128 {
129 unreachable("Unused");
130 }
131
132 int
anv_gem_handle_to_fd(struct anv_device * device,uint32_t gem_handle)133 anv_gem_handle_to_fd(struct anv_device *device, uint32_t gem_handle)
134 {
135 unreachable("Unused");
136 }
137
138 uint32_t
anv_gem_fd_to_handle(struct anv_device * device,int fd)139 anv_gem_fd_to_handle(struct anv_device *device, int fd)
140 {
141 unreachable("Unused");
142 }
143