1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
2
3 /*
4 * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 *
25 * Authors:
26 * Rob Clark <robclark@freedesktop.org>
27 */
28
29 #include "kgsl_priv.h"
30
31
kgsl_pipe_get_param(struct fd_pipe * pipe,enum fd_param_id param,uint64_t * value)32 static int kgsl_pipe_get_param(struct fd_pipe *pipe,
33 enum fd_param_id param, uint64_t *value)
34 {
35 struct kgsl_pipe *kgsl_pipe = to_kgsl_pipe(pipe);
36 switch (param) {
37 case FD_DEVICE_ID:
38 *value = kgsl_pipe->devinfo.device_id;
39 return 0;
40 case FD_GPU_ID:
41 *value = kgsl_pipe->devinfo.gpu_id;
42 return 0;
43 case FD_GMEM_SIZE:
44 *value = kgsl_pipe->devinfo.gmem_sizebytes;
45 return 0;
46 case FD_CHIP_ID:
47 *value = kgsl_pipe->devinfo.chip_id;
48 return 0;
49 case FD_MAX_FREQ:
50 case FD_TIMESTAMP:
51 case FD_NR_RINGS:
52 /* unsupported on kgsl */
53 return -1;
54 default:
55 ERROR_MSG("invalid param id: %d", param);
56 return -1;
57 }
58 }
59
kgsl_pipe_wait(struct fd_pipe * pipe,uint32_t timestamp,uint64_t timeout)60 static int kgsl_pipe_wait(struct fd_pipe *pipe, uint32_t timestamp,
61 uint64_t timeout)
62 {
63 struct kgsl_pipe *kgsl_pipe = to_kgsl_pipe(pipe);
64 struct kgsl_device_waittimestamp req = {
65 .timestamp = timestamp,
66 .timeout = 5000,
67 };
68 int ret;
69
70 do {
71 ret = ioctl(kgsl_pipe->fd, IOCTL_KGSL_DEVICE_WAITTIMESTAMP, &req);
72 } while ((ret == -1) && ((errno == EINTR) || (errno == EAGAIN)));
73 if (ret)
74 ERROR_MSG("waittimestamp failed! %d (%s)", ret, strerror(errno));
75 else
76 kgsl_pipe_process_pending(kgsl_pipe, timestamp);
77 return ret;
78 }
79
kgsl_pipe_timestamp(struct kgsl_pipe * kgsl_pipe,uint32_t * timestamp)80 drm_private int kgsl_pipe_timestamp(struct kgsl_pipe *kgsl_pipe,
81 uint32_t *timestamp)
82 {
83 struct kgsl_cmdstream_readtimestamp req = {
84 .type = KGSL_TIMESTAMP_RETIRED
85 };
86 int ret = ioctl(kgsl_pipe->fd, IOCTL_KGSL_CMDSTREAM_READTIMESTAMP, &req);
87 if (ret) {
88 ERROR_MSG("readtimestamp failed! %d (%s)",
89 ret, strerror(errno));
90 return ret;
91 }
92 *timestamp = req.timestamp;
93 return 0;
94 }
95
kgsl_pipe_destroy(struct fd_pipe * pipe)96 static void kgsl_pipe_destroy(struct fd_pipe *pipe)
97 {
98 struct kgsl_pipe *kgsl_pipe = to_kgsl_pipe(pipe);
99 struct kgsl_drawctxt_destroy req = {
100 .drawctxt_id = kgsl_pipe->drawctxt_id,
101 };
102
103 if (kgsl_pipe->drawctxt_id)
104 ioctl(kgsl_pipe->fd, IOCTL_KGSL_DRAWCTXT_DESTROY, &req);
105
106 if (kgsl_pipe->fd >= 0)
107 close(kgsl_pipe->fd);
108
109 free(kgsl_pipe);
110 }
111
112 static const struct fd_pipe_funcs funcs = {
113 .ringbuffer_new = kgsl_ringbuffer_new,
114 .get_param = kgsl_pipe_get_param,
115 .wait = kgsl_pipe_wait,
116 .destroy = kgsl_pipe_destroy,
117 };
118
is_kgsl_pipe(struct fd_pipe * pipe)119 drm_private int is_kgsl_pipe(struct fd_pipe *pipe)
120 {
121 return pipe->funcs == &funcs;
122 }
123
124 /* add buffer to submit list when it is referenced in cmdstream: */
kgsl_pipe_add_submit(struct kgsl_pipe * kgsl_pipe,struct kgsl_bo * kgsl_bo)125 drm_private void kgsl_pipe_add_submit(struct kgsl_pipe *kgsl_pipe,
126 struct kgsl_bo *kgsl_bo)
127 {
128 struct fd_pipe *pipe = &kgsl_pipe->base;
129 struct fd_bo *bo = &kgsl_bo->base;
130 struct list_head *list = &kgsl_bo->list[pipe->id];
131 if (LIST_IS_EMPTY(list)) {
132 fd_bo_ref(bo);
133 } else {
134 list_del(list);
135 }
136 list_addtail(list, &kgsl_pipe->submit_list);
137 }
138
139 /* prepare buffers on submit list before flush: */
kgsl_pipe_pre_submit(struct kgsl_pipe * kgsl_pipe)140 drm_private void kgsl_pipe_pre_submit(struct kgsl_pipe *kgsl_pipe)
141 {
142 struct fd_pipe *pipe = &kgsl_pipe->base;
143 struct kgsl_bo *kgsl_bo = NULL;
144
145 if (!kgsl_pipe->p3d)
146 kgsl_pipe->p3d = fd_pipe_new(pipe->dev, FD_PIPE_3D);
147
148 LIST_FOR_EACH_ENTRY(kgsl_bo, &kgsl_pipe->submit_list, list[pipe->id]) {
149 uint32_t timestamp = kgsl_bo_get_timestamp(kgsl_bo);
150 if (timestamp)
151 fd_pipe_wait(kgsl_pipe->p3d, timestamp);
152 }
153 }
154
155 /* process buffers on submit list after flush: */
kgsl_pipe_post_submit(struct kgsl_pipe * kgsl_pipe,uint32_t timestamp)156 drm_private void kgsl_pipe_post_submit(struct kgsl_pipe *kgsl_pipe,
157 uint32_t timestamp)
158 {
159 struct fd_pipe *pipe = &kgsl_pipe->base;
160 struct kgsl_bo *kgsl_bo = NULL, *tmp;
161
162 LIST_FOR_EACH_ENTRY_SAFE(kgsl_bo, tmp, &kgsl_pipe->submit_list, list[pipe->id]) {
163 struct list_head *list = &kgsl_bo->list[pipe->id];
164 list_del(list);
165 kgsl_bo->timestamp[pipe->id] = timestamp;
166 list_addtail(list, &kgsl_pipe->pending_list);
167
168 kgsl_bo_set_timestamp(kgsl_bo, timestamp);
169 }
170
171 if (!kgsl_pipe_timestamp(kgsl_pipe, ×tamp))
172 kgsl_pipe_process_pending(kgsl_pipe, timestamp);
173 }
174
kgsl_pipe_process_pending(struct kgsl_pipe * kgsl_pipe,uint32_t timestamp)175 drm_private void kgsl_pipe_process_pending(struct kgsl_pipe *kgsl_pipe,
176 uint32_t timestamp)
177 {
178 struct fd_pipe *pipe = &kgsl_pipe->base;
179 struct kgsl_bo *kgsl_bo = NULL, *tmp;
180
181 LIST_FOR_EACH_ENTRY_SAFE(kgsl_bo, tmp, &kgsl_pipe->pending_list, list[pipe->id]) {
182 struct list_head *list = &kgsl_bo->list[pipe->id];
183 if (kgsl_bo->timestamp[pipe->id] > timestamp)
184 return;
185 list_delinit(list);
186 kgsl_bo->timestamp[pipe->id] = 0;
187 fd_bo_del(&kgsl_bo->base);
188 }
189 }
190
getprop(int fd,enum kgsl_property_type type,void * value,int sizebytes)191 static int getprop(int fd, enum kgsl_property_type type,
192 void *value, int sizebytes)
193 {
194 struct kgsl_device_getproperty req = {
195 .type = type,
196 .value = value,
197 .sizebytes = sizebytes,
198 };
199 return ioctl(fd, IOCTL_KGSL_DEVICE_GETPROPERTY, &req);
200 }
201
202 #define GETPROP(fd, prop, x) do { \
203 if (getprop((fd), KGSL_PROP_##prop, &(x), sizeof(x))) { \
204 ERROR_MSG("failed to get property: " #prop); \
205 goto fail; \
206 } } while (0)
207
208
kgsl_pipe_new(struct fd_device * dev,enum fd_pipe_id id,uint32_t prio)209 drm_private struct fd_pipe * kgsl_pipe_new(struct fd_device *dev,
210 enum fd_pipe_id id, uint32_t prio)
211 {
212 static const char *paths[] = {
213 [FD_PIPE_3D] = "/dev/kgsl-3d0",
214 [FD_PIPE_2D] = "/dev/kgsl-2d0",
215 };
216 struct kgsl_drawctxt_create req = {
217 .flags = 0x2000, /* ??? */
218 };
219 struct kgsl_pipe *kgsl_pipe = NULL;
220 struct fd_pipe *pipe = NULL;
221 int ret, fd;
222
223 fd = open(paths[id], O_RDWR);
224 if (fd < 0) {
225 ERROR_MSG("could not open %s device: %d (%s)",
226 paths[id], fd, strerror(errno));
227 goto fail;
228 }
229
230 ret = ioctl(fd, IOCTL_KGSL_DRAWCTXT_CREATE, &req);
231 if (ret) {
232 ERROR_MSG("failed to allocate context: %d (%s)",
233 ret, strerror(errno));
234 goto fail;
235 }
236
237 kgsl_pipe = calloc(1, sizeof(*kgsl_pipe));
238 if (!kgsl_pipe) {
239 ERROR_MSG("allocation failed");
240 goto fail;
241 }
242
243 pipe = &kgsl_pipe->base;
244 pipe->funcs = &funcs;
245
246 kgsl_pipe->fd = fd;
247 kgsl_pipe->drawctxt_id = req.drawctxt_id;
248
249 list_inithead(&kgsl_pipe->submit_list);
250 list_inithead(&kgsl_pipe->pending_list);
251
252 GETPROP(fd, VERSION, kgsl_pipe->version);
253 GETPROP(fd, DEVICE_INFO, kgsl_pipe->devinfo);
254
255 if (kgsl_pipe->devinfo.gpu_id >= 500) {
256 ERROR_MSG("64b unsupported with kgsl");
257 goto fail;
258 }
259
260 INFO_MSG("Pipe Info:");
261 INFO_MSG(" Device: %s", paths[id]);
262 INFO_MSG(" Chip-id: %d.%d.%d.%d",
263 (kgsl_pipe->devinfo.chip_id >> 24) & 0xff,
264 (kgsl_pipe->devinfo.chip_id >> 16) & 0xff,
265 (kgsl_pipe->devinfo.chip_id >> 8) & 0xff,
266 (kgsl_pipe->devinfo.chip_id >> 0) & 0xff);
267 INFO_MSG(" Device-id: %d", kgsl_pipe->devinfo.device_id);
268 INFO_MSG(" GPU-id: %d", kgsl_pipe->devinfo.gpu_id);
269 INFO_MSG(" MMU enabled: %d", kgsl_pipe->devinfo.mmu_enabled);
270 INFO_MSG(" GMEM Base addr: 0x%08x", kgsl_pipe->devinfo.gmem_gpubaseaddr);
271 INFO_MSG(" GMEM size: 0x%08x", kgsl_pipe->devinfo.gmem_sizebytes);
272 INFO_MSG(" Driver version: %d.%d",
273 kgsl_pipe->version.drv_major, kgsl_pipe->version.drv_minor);
274 INFO_MSG(" Device version: %d.%d",
275 kgsl_pipe->version.dev_major, kgsl_pipe->version.dev_minor);
276
277 return pipe;
278 fail:
279 if (pipe)
280 fd_pipe_del(pipe);
281 return NULL;
282 }
283