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