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"
36 anv_ioctl(int fd, unsigned long request, void *arg)
41 ret = ioctl(fd, request, arg);
42 } while (ret == -1 && (errno == EINTR || errno == EAGAIN));
48 * Wrapper around DRM_IOCTL_I915_GEM_CREATE.
50 * Return gem handle, or 0 on failure. Gem handles are never 0.
53 anv_gem_create(struct anv_device *device, size_t size)
55 struct drm_i915_gem_create gem_create = {
59 int ret = anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_CREATE, &gem_create);
61 /* FIXME: What do we do if this fails? */
65 return gem_create.handle;
69 anv_gem_close(struct anv_device *device, uint32_t gem_handle)
71 struct drm_gem_close close = {
75 anv_ioctl(device->fd, DRM_IOCTL_GEM_CLOSE, &close);
79 * Wrapper around DRM_IOCTL_I915_GEM_MMAP.
82 anv_gem_mmap(struct anv_device *device, uint32_t gem_handle,
83 uint64_t offset, uint64_t size, uint32_t flags)
85 struct drm_i915_gem_mmap gem_mmap = {
92 int ret = anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_MMAP, &gem_mmap);
94 /* FIXME: Is NULL the right error return? Cf MAP_INVALID */
98 VG(VALGRIND_MALLOCLIKE_BLOCK(gem_mmap.addr_ptr, gem_mmap.size, 0, 1));
99 return (void *)(uintptr_t) gem_mmap.addr_ptr;
102 /* This is just a wrapper around munmap, but it also notifies valgrind that
103 * this map is no longer valid. Pair this with anv_gem_mmap().
106 anv_gem_munmap(void *p, uint64_t size)
108 VG(VALGRIND_FREELIKE_BLOCK(p, 0));
113 anv_gem_userptr(struct anv_device *device, void *mem, size_t size)
115 struct drm_i915_gem_userptr userptr = {
116 .user_ptr = (__u64)((unsigned long) mem),
121 int ret = anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_USERPTR, &userptr);
125 return userptr.handle;
129 anv_gem_set_caching(struct anv_device *device,
130 uint32_t gem_handle, uint32_t caching)
132 struct drm_i915_gem_caching gem_caching = {
133 .handle = gem_handle,
137 return anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_SET_CACHING, &gem_caching);
141 anv_gem_set_domain(struct anv_device *device, uint32_t gem_handle,
142 uint32_t read_domains, uint32_t write_domain)
144 struct drm_i915_gem_set_domain gem_set_domain = {
145 .handle = gem_handle,
146 .read_domains = read_domains,
147 .write_domain = write_domain,
150 return anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_SET_DOMAIN, &gem_set_domain);
154 * On error, \a timeout_ns holds the remaining time.
157 anv_gem_wait(struct anv_device *device, uint32_t gem_handle, int64_t *timeout_ns)
159 struct drm_i915_gem_wait wait = {
160 .bo_handle = gem_handle,
161 .timeout_ns = *timeout_ns,
165 int ret = anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_WAIT, &wait);
166 *timeout_ns = wait.timeout_ns;
172 anv_gem_execbuffer(struct anv_device *device,
173 struct drm_i915_gem_execbuffer2 *execbuf)
175 return anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, execbuf);
179 anv_gem_set_tiling(struct anv_device *device,
180 uint32_t gem_handle, uint32_t stride, uint32_t tiling)
184 /* set_tiling overwrites the input on the error path, so we have to open
188 struct drm_i915_gem_set_tiling set_tiling = {
189 .handle = gem_handle,
190 .tiling_mode = tiling,
194 ret = ioctl(device->fd, DRM_IOCTL_I915_GEM_SET_TILING, &set_tiling);
195 } while (ret == -1 && (errno == EINTR || errno == EAGAIN));
201 anv_gem_get_param(int fd, uint32_t param)
205 drm_i915_getparam_t gp = {
210 int ret = anv_ioctl(fd, DRM_IOCTL_I915_GETPARAM, &gp);
218 anv_gem_get_bit6_swizzle(int fd, uint32_t tiling)
220 struct drm_gem_close close;
223 struct drm_i915_gem_create gem_create = {
227 if (anv_ioctl(fd, DRM_IOCTL_I915_GEM_CREATE, &gem_create)) {
228 assert(!"Failed to create GEM BO");
232 bool swizzled = false;
234 /* set_tiling overwrites the input on the error path, so we have to open
238 struct drm_i915_gem_set_tiling set_tiling = {
239 .handle = gem_create.handle,
240 .tiling_mode = tiling,
241 .stride = tiling == I915_TILING_X ? 512 : 128,
244 ret = ioctl(fd, DRM_IOCTL_I915_GEM_SET_TILING, &set_tiling);
245 } while (ret == -1 && (errno == EINTR || errno == EAGAIN));
248 assert(!"Failed to set BO tiling");
249 goto close_and_return;
252 struct drm_i915_gem_get_tiling get_tiling = {
253 .handle = gem_create.handle,
256 if (anv_ioctl(fd, DRM_IOCTL_I915_GEM_GET_TILING, &get_tiling)) {
257 assert(!"Failed to get BO tiling");
258 goto close_and_return;
261 swizzled = get_tiling.swizzle_mode != I915_BIT_6_SWIZZLE_NONE;
265 memset(&close, 0, sizeof(close));
266 close.handle = gem_create.handle;
267 anv_ioctl(fd, DRM_IOCTL_GEM_CLOSE, &close);
273 anv_gem_create_context(struct anv_device *device)
275 struct drm_i915_gem_context_create create = { 0 };
277 int ret = anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_CONTEXT_CREATE, &create);
281 return create.ctx_id;
285 anv_gem_destroy_context(struct anv_device *device, int context)
287 struct drm_i915_gem_context_destroy destroy = {
291 return anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_CONTEXT_DESTROY, &destroy);
295 anv_gem_get_aperture(int fd, uint64_t *size)
297 struct drm_i915_gem_get_aperture aperture = { 0 };
299 int ret = anv_ioctl(fd, DRM_IOCTL_I915_GEM_GET_APERTURE, &aperture);
303 *size = aperture.aper_available_size;
309 anv_gem_handle_to_fd(struct anv_device *device, uint32_t gem_handle)
311 struct drm_prime_handle args = {
312 .handle = gem_handle,
313 .flags = DRM_CLOEXEC,
316 int ret = anv_ioctl(device->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &args);
324 anv_gem_fd_to_handle(struct anv_device *device, int fd)
326 struct drm_prime_handle args = {
330 int ret = anv_ioctl(device->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &args);