2 * Copyright © 2015 Intel Corporation
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:
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
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
24 #define _DEFAULT_SOURCE
26 #include <sys/ioctl.h>
33 #include "anv_private.h"
35 #define VG_CLEAR(s) VG(memset(&s, 0, sizeof(s)))
38 anv_ioctl(int fd
, unsigned long request
, void *arg
)
43 ret
= ioctl(fd
, request
, arg
);
44 } while (ret
== -1 && (errno
== EINTR
|| errno
== EAGAIN
));
50 * Wrapper around DRM_IOCTL_I915_GEM_CREATE.
52 * Return gem handle, or 0 on failure. Gem handles are never 0.
55 anv_gem_create(struct anv_device
*device
, size_t size
)
57 struct drm_i915_gem_create gem_create
;
61 gem_create
.size
= size
;
63 ret
= anv_ioctl(device
->fd
, DRM_IOCTL_I915_GEM_CREATE
, &gem_create
);
65 /* FIXME: What do we do if this fails? */
69 return gem_create
.handle
;
73 anv_gem_close(struct anv_device
*device
, uint32_t gem_handle
)
75 struct drm_gem_close close
;
78 close
.handle
= gem_handle
;
79 anv_ioctl(device
->fd
, DRM_IOCTL_GEM_CLOSE
, &close
);
83 * Wrapper around DRM_IOCTL_I915_GEM_MMAP.
86 anv_gem_mmap(struct anv_device
*device
, uint32_t gem_handle
,
87 uint64_t offset
, uint64_t size
, uint32_t flags
)
89 struct drm_i915_gem_mmap gem_mmap
;
92 gem_mmap
.handle
= gem_handle
;
93 VG_CLEAR(gem_mmap
.pad
);
94 gem_mmap
.offset
= offset
;
96 VG_CLEAR(gem_mmap
.addr_ptr
);
97 gem_mmap
.flags
= flags
;
99 ret
= anv_ioctl(device
->fd
, DRM_IOCTL_I915_GEM_MMAP
, &gem_mmap
);
101 /* FIXME: Is NULL the right error return? Cf MAP_INVALID */
105 VG(VALGRIND_MALLOCLIKE_BLOCK(gem_mmap
.addr_ptr
, gem_mmap
.size
, 0, 1));
106 return (void *)(uintptr_t) gem_mmap
.addr_ptr
;
109 /* This is just a wrapper around munmap, but it also notifies valgrind that
110 * this map is no longer valid. Pair this with anv_gem_mmap().
113 anv_gem_munmap(void *p
, uint64_t size
)
115 VG(VALGRIND_FREELIKE_BLOCK(p
, 0));
120 anv_gem_userptr(struct anv_device
*device
, void *mem
, size_t size
)
122 struct drm_i915_gem_userptr userptr
;
126 userptr
.user_ptr
= (__u64
)((unsigned long) mem
);
127 userptr
.user_size
= size
;
130 ret
= anv_ioctl(device
->fd
, DRM_IOCTL_I915_GEM_USERPTR
, &userptr
);
134 return userptr
.handle
;
138 anv_gem_set_caching(struct anv_device
*device
,
139 uint32_t gem_handle
, uint32_t caching
)
141 struct drm_i915_gem_caching gem_caching
;
143 VG_CLEAR(gem_caching
);
144 gem_caching
.handle
= gem_handle
;
145 gem_caching
.caching
= caching
;
147 return anv_ioctl(device
->fd
, DRM_IOCTL_I915_GEM_SET_CACHING
, &gem_caching
);
151 anv_gem_set_domain(struct anv_device
*device
, uint32_t gem_handle
,
152 uint32_t read_domains
, uint32_t write_domain
)
154 struct drm_i915_gem_set_domain gem_set_domain
;
156 VG_CLEAR(gem_set_domain
);
157 gem_set_domain
.handle
= gem_handle
;
158 gem_set_domain
.read_domains
= read_domains
;
159 gem_set_domain
.write_domain
= write_domain
;
161 return anv_ioctl(device
->fd
, DRM_IOCTL_I915_GEM_SET_DOMAIN
, &gem_set_domain
);
165 * On error, \a timeout_ns holds the remaining time.
168 anv_gem_wait(struct anv_device
*device
, uint32_t gem_handle
, int64_t *timeout_ns
)
170 struct drm_i915_gem_wait wait
;
174 wait
.bo_handle
= gem_handle
;
175 wait
.timeout_ns
= *timeout_ns
;
178 ret
= anv_ioctl(device
->fd
, DRM_IOCTL_I915_GEM_WAIT
, &wait
);
179 *timeout_ns
= wait
.timeout_ns
;
185 anv_gem_execbuffer(struct anv_device
*device
,
186 struct drm_i915_gem_execbuffer2
*execbuf
)
188 return anv_ioctl(device
->fd
, DRM_IOCTL_I915_GEM_EXECBUFFER2
, execbuf
);
192 anv_gem_set_tiling(struct anv_device
*device
,
193 uint32_t gem_handle
, uint32_t stride
, uint32_t tiling
)
195 struct drm_i915_gem_set_tiling set_tiling
;
198 /* set_tiling overwrites the input on the error path, so we have to open
203 VG_CLEAR(set_tiling
);
204 set_tiling
.handle
= gem_handle
;
205 set_tiling
.tiling_mode
= tiling
;
206 set_tiling
.stride
= stride
;
208 ret
= ioctl(device
->fd
, DRM_IOCTL_I915_GEM_SET_TILING
, &set_tiling
);
209 } while (ret
== -1 && (errno
== EINTR
|| errno
== EAGAIN
));
215 anv_gem_get_param(int fd
, uint32_t param
)
217 drm_i915_getparam_t gp
;
223 ret
= anv_ioctl(fd
, DRM_IOCTL_I915_GETPARAM
, &gp
);
231 anv_gem_create_context(struct anv_device
*device
)
233 struct drm_i915_gem_context_create create
;
238 ret
= anv_ioctl(device
->fd
, DRM_IOCTL_I915_GEM_CONTEXT_CREATE
, &create
);
242 return create
.ctx_id
;
246 anv_gem_destroy_context(struct anv_device
*device
, int context
)
248 struct drm_i915_gem_context_destroy destroy
;
251 destroy
.ctx_id
= context
;
253 return anv_ioctl(device
->fd
, DRM_IOCTL_I915_GEM_CONTEXT_DESTROY
, &destroy
);
257 anv_gem_get_aperture(int fd
, uint64_t *size
)
259 struct drm_i915_gem_get_aperture aperture
;
263 ret
= anv_ioctl(fd
, DRM_IOCTL_I915_GEM_GET_APERTURE
, &aperture
);
267 *size
= aperture
.aper_available_size
;
273 anv_gem_handle_to_fd(struct anv_device
*device
, uint32_t gem_handle
)
275 struct drm_prime_handle args
;
279 args
.handle
= gem_handle
;
280 args
.flags
= DRM_CLOEXEC
;
282 ret
= anv_ioctl(device
->fd
, DRM_IOCTL_PRIME_HANDLE_TO_FD
, &args
);
290 anv_gem_fd_to_handle(struct anv_device
*device
, int fd
)
292 struct drm_prime_handle args
;
298 ret
= anv_ioctl(device
->fd
, DRM_IOCTL_PRIME_FD_TO_HANDLE
, &args
);