1 #include "pipe/p_defines.h"
2 #include "pipe/p_screen.h"
3 #include "pipe/p_state.h"
4
5 #include "util/u_memory.h"
6 #include "util/u_inlines.h"
7 #include "util/format/u_format.h"
8 #include "util/format/u_format_s3tc.h"
9 #include "util/u_string.h"
10
11 #include "os/os_mman.h"
12 #include "util/os_time.h"
13
14 #include <stdio.h>
15 #include <errno.h>
16 #include <stdlib.h>
17
18 #include <nouveau_drm.h>
19 #include <xf86drm.h>
20
21 #include "nouveau_winsys.h"
22 #include "nouveau_screen.h"
23 #include "nouveau_context.h"
24 #include "nouveau_fence.h"
25 #include "nouveau_mm.h"
26 #include "nouveau_buffer.h"
27
28 #include <compiler/glsl_types.h>
29
30 /* XXX this should go away */
31 #include "frontend/drm_driver.h"
32
33 /* Even though GPUs might allow addresses with more bits, some engines do not.
34 * Stick with 40 for compatibility.
35 */
36 #define NV_GENERIC_VM_LIMIT_SHIFT 39
37
38 int nouveau_mesa_debug = 0;
39
40 static const char *
nouveau_screen_get_name(struct pipe_screen * pscreen)41 nouveau_screen_get_name(struct pipe_screen *pscreen)
42 {
43 struct nouveau_device *dev = nouveau_screen(pscreen)->device;
44 static char buffer[128];
45
46 snprintf(buffer, sizeof(buffer), "NV%02X", dev->chipset);
47 return buffer;
48 }
49
50 static const char *
nouveau_screen_get_vendor(struct pipe_screen * pscreen)51 nouveau_screen_get_vendor(struct pipe_screen *pscreen)
52 {
53 return "nouveau";
54 }
55
56 static const char *
nouveau_screen_get_device_vendor(struct pipe_screen * pscreen)57 nouveau_screen_get_device_vendor(struct pipe_screen *pscreen)
58 {
59 return "NVIDIA";
60 }
61
62 static uint64_t
nouveau_screen_get_timestamp(struct pipe_screen * pscreen)63 nouveau_screen_get_timestamp(struct pipe_screen *pscreen)
64 {
65 int64_t cpu_time = os_time_get() * 1000;
66
67 /* getparam of PTIMER_TIME takes about x10 as long (several usecs) */
68
69 return cpu_time + nouveau_screen(pscreen)->cpu_gpu_time_delta;
70 }
71
72 static struct disk_cache *
nouveau_screen_get_disk_shader_cache(struct pipe_screen * pscreen)73 nouveau_screen_get_disk_shader_cache(struct pipe_screen *pscreen)
74 {
75 return nouveau_screen(pscreen)->disk_shader_cache;
76 }
77
78 static void
nouveau_screen_fence_ref(struct pipe_screen * pscreen,struct pipe_fence_handle ** ptr,struct pipe_fence_handle * pfence)79 nouveau_screen_fence_ref(struct pipe_screen *pscreen,
80 struct pipe_fence_handle **ptr,
81 struct pipe_fence_handle *pfence)
82 {
83 nouveau_fence_ref(nouveau_fence(pfence), (struct nouveau_fence **)ptr);
84 }
85
86 static bool
nouveau_screen_fence_finish(struct pipe_screen * screen,struct pipe_context * ctx,struct pipe_fence_handle * pfence,uint64_t timeout)87 nouveau_screen_fence_finish(struct pipe_screen *screen,
88 struct pipe_context *ctx,
89 struct pipe_fence_handle *pfence,
90 uint64_t timeout)
91 {
92 if (!timeout)
93 return nouveau_fence_signalled(nouveau_fence(pfence));
94
95 return nouveau_fence_wait(nouveau_fence(pfence), NULL);
96 }
97
98
99 struct nouveau_bo *
nouveau_screen_bo_from_handle(struct pipe_screen * pscreen,struct winsys_handle * whandle,unsigned * out_stride)100 nouveau_screen_bo_from_handle(struct pipe_screen *pscreen,
101 struct winsys_handle *whandle,
102 unsigned *out_stride)
103 {
104 struct nouveau_device *dev = nouveau_screen(pscreen)->device;
105 struct nouveau_bo *bo = 0;
106 int ret;
107
108 if (whandle->offset != 0) {
109 debug_printf("%s: attempt to import unsupported winsys offset %d\n",
110 __FUNCTION__, whandle->offset);
111 return NULL;
112 }
113
114 if (whandle->type != WINSYS_HANDLE_TYPE_SHARED &&
115 whandle->type != WINSYS_HANDLE_TYPE_FD) {
116 debug_printf("%s: attempt to import unsupported handle type %d\n",
117 __FUNCTION__, whandle->type);
118 return NULL;
119 }
120
121 if (whandle->type == WINSYS_HANDLE_TYPE_SHARED)
122 ret = nouveau_bo_name_ref(dev, whandle->handle, &bo);
123 else
124 ret = nouveau_bo_prime_handle_ref(dev, whandle->handle, &bo);
125
126 if (ret) {
127 debug_printf("%s: ref name 0x%08x failed with %d\n",
128 __FUNCTION__, whandle->handle, ret);
129 return NULL;
130 }
131
132 *out_stride = whandle->stride;
133 return bo;
134 }
135
136
137 bool
nouveau_screen_bo_get_handle(struct pipe_screen * pscreen,struct nouveau_bo * bo,unsigned stride,struct winsys_handle * whandle)138 nouveau_screen_bo_get_handle(struct pipe_screen *pscreen,
139 struct nouveau_bo *bo,
140 unsigned stride,
141 struct winsys_handle *whandle)
142 {
143 whandle->stride = stride;
144
145 if (whandle->type == WINSYS_HANDLE_TYPE_SHARED) {
146 return nouveau_bo_name_get(bo, &whandle->handle) == 0;
147 } else if (whandle->type == WINSYS_HANDLE_TYPE_KMS) {
148 whandle->handle = bo->handle;
149 return true;
150 } else if (whandle->type == WINSYS_HANDLE_TYPE_FD) {
151 return nouveau_bo_set_prime(bo, (int *)&whandle->handle) == 0;
152 } else {
153 return false;
154 }
155 }
156
157 static void
nouveau_disk_cache_create(struct nouveau_screen * screen)158 nouveau_disk_cache_create(struct nouveau_screen *screen)
159 {
160 struct mesa_sha1 ctx;
161 unsigned char sha1[20];
162 char cache_id[20 * 2 + 1];
163 uint64_t driver_flags = 0;
164
165 _mesa_sha1_init(&ctx);
166 if (!disk_cache_get_function_identifier(nouveau_disk_cache_create,
167 &ctx))
168 return;
169
170 _mesa_sha1_final(&ctx, sha1);
171 disk_cache_format_hex_id(cache_id, sha1, 20 * 2);
172
173 if (screen->prefer_nir)
174 driver_flags |= NOUVEAU_SHADER_CACHE_FLAGS_IR_NIR;
175 else
176 driver_flags |= NOUVEAU_SHADER_CACHE_FLAGS_IR_TGSI;
177
178 screen->disk_shader_cache =
179 disk_cache_create(nouveau_screen_get_name(&screen->base),
180 cache_id, driver_flags);
181 }
182
183 static void*
reserve_vma(uintptr_t start,uint64_t reserved_size)184 reserve_vma(uintptr_t start, uint64_t reserved_size)
185 {
186 void *reserved = os_mmap((void*)start, reserved_size, PROT_NONE,
187 MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
188 if (reserved == MAP_FAILED)
189 return NULL;
190 return reserved;
191 }
192
193 int
nouveau_screen_init(struct nouveau_screen * screen,struct nouveau_device * dev)194 nouveau_screen_init(struct nouveau_screen *screen, struct nouveau_device *dev)
195 {
196 struct pipe_screen *pscreen = &screen->base;
197 struct nv04_fifo nv04_data = { .vram = 0xbeef0201, .gart = 0xbeef0202 };
198 struct nvc0_fifo nvc0_data = { };
199 uint64_t time;
200 int size, ret;
201 void *data;
202 union nouveau_bo_config mm_config;
203
204 char *nv_dbg = getenv("NOUVEAU_MESA_DEBUG");
205 if (nv_dbg)
206 nouveau_mesa_debug = atoi(nv_dbg);
207
208 if (dev->chipset < 0x140)
209 screen->prefer_nir = debug_get_bool_option("NV50_PROG_USE_NIR", false);
210 else
211 screen->prefer_nir = true;
212
213 screen->force_enable_cl = debug_get_bool_option("NOUVEAU_ENABLE_CL", false);
214 if (screen->force_enable_cl)
215 glsl_type_singleton_init_or_ref();
216
217 /* These must be set before any failure is possible, as the cleanup
218 * paths assume they're responsible for deleting them.
219 */
220 screen->drm = nouveau_drm(&dev->object);
221 screen->device = dev;
222
223 /*
224 * this is initialized to 1 in nouveau_drm_screen_create after screen
225 * is fully constructed and added to the global screen list.
226 */
227 screen->refcount = -1;
228
229 if (dev->chipset < 0xc0) {
230 data = &nv04_data;
231 size = sizeof(nv04_data);
232 } else {
233 data = &nvc0_data;
234 size = sizeof(nvc0_data);
235 }
236
237 bool enable_svm = debug_get_bool_option("NOUVEAU_SVM", false);
238 screen->has_svm = false;
239 /* we only care about HMM with OpenCL enabled */
240 if (dev->chipset > 0x130 && screen->force_enable_cl && enable_svm) {
241 /* Before being able to enable SVM we need to carve out some memory for
242 * driver bo allocations. Let's just base the size on the available VRAM.
243 *
244 * 40 bit is the biggest we care about and for 32 bit systems we don't
245 * want to allocate all of the available memory either.
246 *
247 * Also we align the size we want to reserve to the next POT to make use
248 * of hugepages.
249 */
250 const int vram_shift = util_logbase2_ceil64(dev->vram_size);
251 const int limit_bit =
252 MIN2(sizeof(void*) * 8 - 1, NV_GENERIC_VM_LIMIT_SHIFT);
253 screen->svm_cutout_size =
254 BITFIELD64_BIT(MIN2(sizeof(void*) == 4 ? 26 : NV_GENERIC_VM_LIMIT_SHIFT, vram_shift));
255
256 size_t start = screen->svm_cutout_size;
257 do {
258 screen->svm_cutout = reserve_vma(start, screen->svm_cutout_size);
259 if (!screen->svm_cutout) {
260 start += screen->svm_cutout_size;
261 continue;
262 }
263
264 struct drm_nouveau_svm_init svm_args = {
265 .unmanaged_addr = (uint64_t)screen->svm_cutout,
266 .unmanaged_size = screen->svm_cutout_size,
267 };
268
269 ret = drmCommandWrite(screen->drm->fd, DRM_NOUVEAU_SVM_INIT,
270 &svm_args, sizeof(svm_args));
271 screen->has_svm = !ret;
272 if (!screen->has_svm)
273 os_munmap(screen->svm_cutout, screen->svm_cutout_size);
274 break;
275 } while ((start + screen->svm_cutout_size) < BITFIELD64_MASK(limit_bit));
276 }
277
278 /*
279 * Set default VRAM domain if not overridden
280 */
281 if (!screen->vram_domain) {
282 if (dev->vram_size > 0)
283 screen->vram_domain = NOUVEAU_BO_VRAM;
284 else
285 screen->vram_domain = NOUVEAU_BO_GART;
286 }
287
288 ret = nouveau_object_new(&dev->object, 0, NOUVEAU_FIFO_CHANNEL_CLASS,
289 data, size, &screen->channel);
290 if (ret)
291 goto err;
292
293 ret = nouveau_client_new(screen->device, &screen->client);
294 if (ret)
295 goto err;
296 ret = nouveau_pushbuf_new(screen->client, screen->channel,
297 4, 512 * 1024, 1,
298 &screen->pushbuf);
299 if (ret)
300 goto err;
301
302 /* getting CPU time first appears to be more accurate */
303 screen->cpu_gpu_time_delta = os_time_get();
304
305 ret = nouveau_getparam(dev, NOUVEAU_GETPARAM_PTIMER_TIME, &time);
306 if (!ret)
307 screen->cpu_gpu_time_delta = time - screen->cpu_gpu_time_delta * 1000;
308
309 pscreen->get_name = nouveau_screen_get_name;
310 pscreen->get_vendor = nouveau_screen_get_vendor;
311 pscreen->get_device_vendor = nouveau_screen_get_device_vendor;
312 pscreen->get_disk_shader_cache = nouveau_screen_get_disk_shader_cache;
313
314 pscreen->get_timestamp = nouveau_screen_get_timestamp;
315
316 pscreen->fence_reference = nouveau_screen_fence_ref;
317 pscreen->fence_finish = nouveau_screen_fence_finish;
318
319 nouveau_disk_cache_create(screen);
320
321 screen->transfer_pushbuf_threshold = 192;
322 screen->lowmem_bindings = PIPE_BIND_GLOBAL; /* gallium limit */
323 screen->vidmem_bindings =
324 PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL |
325 PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT |
326 PIPE_BIND_CURSOR |
327 PIPE_BIND_SAMPLER_VIEW |
328 PIPE_BIND_SHADER_BUFFER | PIPE_BIND_SHADER_IMAGE |
329 PIPE_BIND_COMPUTE_RESOURCE |
330 PIPE_BIND_GLOBAL;
331 screen->sysmem_bindings =
332 PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_STREAM_OUTPUT |
333 PIPE_BIND_COMMAND_ARGS_BUFFER;
334
335 memset(&mm_config, 0, sizeof(mm_config));
336
337 screen->mm_GART = nouveau_mm_create(dev,
338 NOUVEAU_BO_GART | NOUVEAU_BO_MAP,
339 &mm_config);
340 screen->mm_VRAM = nouveau_mm_create(dev, NOUVEAU_BO_VRAM, &mm_config);
341 return 0;
342
343 err:
344 if (screen->svm_cutout)
345 os_munmap(screen->svm_cutout, screen->svm_cutout_size);
346 return ret;
347 }
348
349 void
nouveau_screen_fini(struct nouveau_screen * screen)350 nouveau_screen_fini(struct nouveau_screen *screen)
351 {
352 int fd = screen->drm->fd;
353
354 if (screen->force_enable_cl)
355 glsl_type_singleton_decref();
356 if (screen->has_svm)
357 os_munmap(screen->svm_cutout, screen->svm_cutout_size);
358
359 nouveau_mm_destroy(screen->mm_GART);
360 nouveau_mm_destroy(screen->mm_VRAM);
361
362 nouveau_pushbuf_del(&screen->pushbuf);
363
364 nouveau_client_del(&screen->client);
365 nouveau_object_del(&screen->channel);
366
367 nouveau_device_del(&screen->device);
368 nouveau_drm_del(&screen->drm);
369 close(fd);
370
371 disk_cache_destroy(screen->disk_shader_cache);
372 }
373
374 static void
nouveau_set_debug_callback(struct pipe_context * pipe,const struct pipe_debug_callback * cb)375 nouveau_set_debug_callback(struct pipe_context *pipe,
376 const struct pipe_debug_callback *cb)
377 {
378 struct nouveau_context *context = nouveau_context(pipe);
379
380 if (cb)
381 context->debug = *cb;
382 else
383 memset(&context->debug, 0, sizeof(context->debug));
384 }
385
386 void
nouveau_context_init(struct nouveau_context * context)387 nouveau_context_init(struct nouveau_context *context)
388 {
389 context->pipe.set_debug_callback = nouveau_set_debug_callback;
390 }
391