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 #ifdef HAVE_CONFIG_H
30 # include <config.h>
31 #endif
32
33 #include "kgsl_priv.h"
34
35
kgsl_pipe_get_param(struct fd_pipe * pipe,enum fd_param_id param,uint64_t * value)36 static int kgsl_pipe_get_param(struct fd_pipe *pipe,
37 enum fd_param_id param, uint64_t *value)
38 {
39 struct kgsl_pipe *kgsl_pipe = to_kgsl_pipe(pipe);
40 switch (param) {
41 case FD_DEVICE_ID:
42 *value = kgsl_pipe->devinfo.device_id;
43 return 0;
44 case FD_GPU_ID:
45 *value = kgsl_pipe->devinfo.gpu_id;
46 return 0;
47 case FD_GMEM_SIZE:
48 *value = kgsl_pipe->devinfo.gmem_sizebytes;
49 return 0;
50 case FD_CHIP_ID:
51 *value = kgsl_pipe->devinfo.chip_id;
52 return 0;
53 default:
54 ERROR_MSG("invalid param id: %d", param);
55 return -1;
56 }
57 }
58
kgsl_pipe_wait(struct fd_pipe * pipe,uint32_t timestamp,uint64_t timeout)59 static int kgsl_pipe_wait(struct fd_pipe *pipe, uint32_t timestamp,
60 uint64_t timeout)
61 {
62 struct kgsl_pipe *kgsl_pipe = to_kgsl_pipe(pipe);
63 struct kgsl_device_waittimestamp req = {
64 .timestamp = timestamp,
65 .timeout = 5000,
66 };
67 int ret;
68
69 do {
70 ret = ioctl(kgsl_pipe->fd, IOCTL_KGSL_DEVICE_WAITTIMESTAMP, &req);
71 } while ((ret == -1) && ((errno == EINTR) || (errno == EAGAIN)));
72 if (ret)
73 ERROR_MSG("waittimestamp failed! %d (%s)", ret, strerror(errno));
74 else
75 kgsl_pipe_process_pending(kgsl_pipe, timestamp);
76 return ret;
77 }
78
kgsl_pipe_timestamp(struct kgsl_pipe * kgsl_pipe,uint32_t * timestamp)79 drm_private int kgsl_pipe_timestamp(struct kgsl_pipe *kgsl_pipe,
80 uint32_t *timestamp)
81 {
82 struct kgsl_cmdstream_readtimestamp req = {
83 .type = KGSL_TIMESTAMP_RETIRED
84 };
85 int ret = ioctl(kgsl_pipe->fd, IOCTL_KGSL_CMDSTREAM_READTIMESTAMP, &req);
86 if (ret) {
87 ERROR_MSG("readtimestamp failed! %d (%s)",
88 ret, strerror(errno));
89 return ret;
90 }
91 *timestamp = req.timestamp;
92 return 0;
93 }
94
kgsl_pipe_destroy(struct fd_pipe * pipe)95 static void kgsl_pipe_destroy(struct fd_pipe *pipe)
96 {
97 struct kgsl_pipe *kgsl_pipe = to_kgsl_pipe(pipe);
98 struct kgsl_drawctxt_destroy req = {
99 .drawctxt_id = kgsl_pipe->drawctxt_id,
100 };
101
102 if (kgsl_pipe->drawctxt_id)
103 ioctl(kgsl_pipe->fd, IOCTL_KGSL_DRAWCTXT_DESTROY, &req);
104
105 if (kgsl_pipe->fd >= 0)
106 close(kgsl_pipe->fd);
107
108 free(kgsl_pipe);
109 }
110
111 static const struct fd_pipe_funcs funcs = {
112 .ringbuffer_new = kgsl_ringbuffer_new,
113 .get_param = kgsl_pipe_get_param,
114 .wait = kgsl_pipe_wait,
115 .destroy = kgsl_pipe_destroy,
116 };
117
is_kgsl_pipe(struct fd_pipe * pipe)118 drm_private int is_kgsl_pipe(struct fd_pipe *pipe)
119 {
120 return pipe->funcs == &funcs;
121 }
122
123 /* 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)124 drm_private void kgsl_pipe_add_submit(struct kgsl_pipe *kgsl_pipe,
125 struct kgsl_bo *kgsl_bo)
126 {
127 struct fd_pipe *pipe = &kgsl_pipe->base;
128 struct fd_bo *bo = &kgsl_bo->base;
129 struct list_head *list = &kgsl_bo->list[pipe->id];
130 if (LIST_IS_EMPTY(list)) {
131 fd_bo_ref(bo);
132 } else {
133 list_del(list);
134 }
135 list_addtail(list, &kgsl_pipe->submit_list);
136 }
137
138 /* prepare buffers on submit list before flush: */
kgsl_pipe_pre_submit(struct kgsl_pipe * kgsl_pipe)139 drm_private void kgsl_pipe_pre_submit(struct kgsl_pipe *kgsl_pipe)
140 {
141 struct fd_pipe *pipe = &kgsl_pipe->base;
142 struct kgsl_bo *kgsl_bo = NULL;
143
144 if (!kgsl_pipe->p3d)
145 kgsl_pipe->p3d = fd_pipe_new(pipe->dev, FD_PIPE_3D);
146
147 LIST_FOR_EACH_ENTRY(kgsl_bo, &kgsl_pipe->submit_list, list[pipe->id]) {
148 uint32_t timestamp = kgsl_bo_get_timestamp(kgsl_bo);
149 if (timestamp)
150 fd_pipe_wait(kgsl_pipe->p3d, timestamp);
151 }
152 }
153
154 /* process buffers on submit list after flush: */
kgsl_pipe_post_submit(struct kgsl_pipe * kgsl_pipe,uint32_t timestamp)155 drm_private void kgsl_pipe_post_submit(struct kgsl_pipe *kgsl_pipe,
156 uint32_t timestamp)
157 {
158 struct fd_pipe *pipe = &kgsl_pipe->base;
159 struct kgsl_bo *kgsl_bo = NULL, *tmp;
160
161 LIST_FOR_EACH_ENTRY_SAFE(kgsl_bo, tmp, &kgsl_pipe->submit_list, list[pipe->id]) {
162 struct list_head *list = &kgsl_bo->list[pipe->id];
163 list_del(list);
164 kgsl_bo->timestamp[pipe->id] = timestamp;
165 list_addtail(list, &kgsl_pipe->pending_list);
166
167 kgsl_bo_set_timestamp(kgsl_bo, timestamp);
168 }
169
170 if (!kgsl_pipe_timestamp(kgsl_pipe, ×tamp))
171 kgsl_pipe_process_pending(kgsl_pipe, timestamp);
172 }
173
kgsl_pipe_process_pending(struct kgsl_pipe * kgsl_pipe,uint32_t timestamp)174 drm_private void kgsl_pipe_process_pending(struct kgsl_pipe *kgsl_pipe,
175 uint32_t timestamp)
176 {
177 struct fd_pipe *pipe = &kgsl_pipe->base;
178 struct kgsl_bo *kgsl_bo = NULL, *tmp;
179
180 LIST_FOR_EACH_ENTRY_SAFE(kgsl_bo, tmp, &kgsl_pipe->pending_list, list[pipe->id]) {
181 struct list_head *list = &kgsl_bo->list[pipe->id];
182 if (kgsl_bo->timestamp[pipe->id] > timestamp)
183 return;
184 list_delinit(list);
185 kgsl_bo->timestamp[pipe->id] = 0;
186 fd_bo_del(&kgsl_bo->base);
187 }
188 }
189
getprop(int fd,enum kgsl_property_type type,void * value,int sizebytes)190 static int getprop(int fd, enum kgsl_property_type type,
191 void *value, int sizebytes)
192 {
193 struct kgsl_device_getproperty req = {
194 .type = type,
195 .value = value,
196 .sizebytes = sizebytes,
197 };
198 return ioctl(fd, IOCTL_KGSL_DEVICE_GETPROPERTY, &req);
199 }
200
201 #define GETPROP(fd, prop, x) do { \
202 if (getprop((fd), KGSL_PROP_##prop, &(x), sizeof(x))) { \
203 ERROR_MSG("failed to get property: " #prop); \
204 goto fail; \
205 } } while (0)
206
207
kgsl_pipe_new(struct fd_device * dev,enum fd_pipe_id id)208 drm_private struct fd_pipe * kgsl_pipe_new(struct fd_device *dev,
209 enum fd_pipe_id id)
210 {
211 static const char *paths[] = {
212 [FD_PIPE_3D] = "/dev/kgsl-3d0",
213 [FD_PIPE_2D] = "/dev/kgsl-2d0",
214 };
215 struct kgsl_drawctxt_create req = {
216 .flags = 0x2000, /* ??? */
217 };
218 struct kgsl_pipe *kgsl_pipe = NULL;
219 struct fd_pipe *pipe = NULL;
220 int ret, fd;
221
222 fd = open(paths[id], O_RDWR);
223 if (fd < 0) {
224 ERROR_MSG("could not open %s device: %d (%s)",
225 paths[id], fd, strerror(errno));
226 goto fail;
227 }
228
229 ret = ioctl(fd, IOCTL_KGSL_DRAWCTXT_CREATE, &req);
230 if (ret) {
231 ERROR_MSG("failed to allocate context: %d (%s)",
232 ret, strerror(errno));
233 goto fail;
234 }
235
236 kgsl_pipe = calloc(1, sizeof(*kgsl_pipe));
237 if (!kgsl_pipe) {
238 ERROR_MSG("allocation failed");
239 goto fail;
240 }
241
242 pipe = &kgsl_pipe->base;
243 pipe->funcs = &funcs;
244
245 kgsl_pipe->fd = fd;
246 kgsl_pipe->drawctxt_id = req.drawctxt_id;
247
248 list_inithead(&kgsl_pipe->submit_list);
249 list_inithead(&kgsl_pipe->pending_list);
250
251 GETPROP(fd, VERSION, kgsl_pipe->version);
252 GETPROP(fd, DEVICE_INFO, kgsl_pipe->devinfo);
253
254 INFO_MSG("Pipe Info:");
255 INFO_MSG(" Device: %s", paths[id]);
256 INFO_MSG(" Chip-id: %d.%d.%d.%d",
257 (kgsl_pipe->devinfo.chip_id >> 24) & 0xff,
258 (kgsl_pipe->devinfo.chip_id >> 16) & 0xff,
259 (kgsl_pipe->devinfo.chip_id >> 8) & 0xff,
260 (kgsl_pipe->devinfo.chip_id >> 0) & 0xff);
261 INFO_MSG(" Device-id: %d", kgsl_pipe->devinfo.device_id);
262 INFO_MSG(" GPU-id: %d", kgsl_pipe->devinfo.gpu_id);
263 INFO_MSG(" MMU enabled: %d", kgsl_pipe->devinfo.mmu_enabled);
264 INFO_MSG(" GMEM Base addr: 0x%08x", kgsl_pipe->devinfo.gmem_gpubaseaddr);
265 INFO_MSG(" GMEM size: 0x%08x", kgsl_pipe->devinfo.gmem_sizebytes);
266 INFO_MSG(" Driver version: %d.%d",
267 kgsl_pipe->version.drv_major, kgsl_pipe->version.drv_minor);
268 INFO_MSG(" Device version: %d.%d",
269 kgsl_pipe->version.dev_major, kgsl_pipe->version.dev_minor);
270
271 return pipe;
272 fail:
273 if (pipe)
274 fd_pipe_del(pipe);
275 return NULL;
276 }
277