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
38int nouveau_mesa_debug = 0;
39
40static const char *
41nouveau_screen_get_name(struct pipe_screen *pscreen)
42{
43   struct nouveau_screen *screen = nouveau_screen(pscreen);
44   return screen->chipset_name;
45}
46
47static const char *
48nouveau_screen_get_vendor(struct pipe_screen *pscreen)
49{
50   return "nouveau";
51}
52
53static const char *
54nouveau_screen_get_device_vendor(struct pipe_screen *pscreen)
55{
56   return "NVIDIA";
57}
58
59static uint64_t
60nouveau_screen_get_timestamp(struct pipe_screen *pscreen)
61{
62   int64_t cpu_time = os_time_get() * 1000;
63
64   /* getparam of PTIMER_TIME takes about x10 as long (several usecs) */
65
66   return cpu_time + nouveau_screen(pscreen)->cpu_gpu_time_delta;
67}
68
69static struct disk_cache *
70nouveau_screen_get_disk_shader_cache(struct pipe_screen *pscreen)
71{
72   return nouveau_screen(pscreen)->disk_shader_cache;
73}
74
75static void
76nouveau_screen_fence_ref(struct pipe_screen *pscreen,
77                         struct pipe_fence_handle **ptr,
78                         struct pipe_fence_handle *pfence)
79{
80   nouveau_fence_ref(nouveau_fence(pfence), (struct nouveau_fence **)ptr);
81}
82
83static bool
84nouveau_screen_fence_finish(struct pipe_screen *screen,
85                            struct pipe_context *ctx,
86                            struct pipe_fence_handle *pfence,
87                            uint64_t timeout)
88{
89   if (!timeout)
90      return nouveau_fence_signalled(nouveau_fence(pfence));
91
92   return nouveau_fence_wait(nouveau_fence(pfence), NULL);
93}
94
95
96struct nouveau_bo *
97nouveau_screen_bo_from_handle(struct pipe_screen *pscreen,
98                              struct winsys_handle *whandle,
99                              unsigned *out_stride)
100{
101   struct nouveau_device *dev = nouveau_screen(pscreen)->device;
102   struct nouveau_bo *bo = NULL;
103   int ret;
104
105   if (whandle->offset != 0) {
106      debug_printf("%s: attempt to import unsupported winsys offset %d\n",
107                   __FUNCTION__, whandle->offset);
108      return NULL;
109   }
110
111   if (whandle->type != WINSYS_HANDLE_TYPE_SHARED &&
112       whandle->type != WINSYS_HANDLE_TYPE_FD) {
113      debug_printf("%s: attempt to import unsupported handle type %d\n",
114                   __FUNCTION__, whandle->type);
115      return NULL;
116   }
117
118   if (whandle->type == WINSYS_HANDLE_TYPE_SHARED)
119      ret = nouveau_bo_name_ref(dev, whandle->handle, &bo);
120   else
121      ret = nouveau_bo_prime_handle_ref(dev, whandle->handle, &bo);
122
123   if (ret) {
124      debug_printf("%s: ref name 0x%08x failed with %d\n",
125                   __FUNCTION__, whandle->handle, ret);
126      return NULL;
127   }
128
129   *out_stride = whandle->stride;
130   return bo;
131}
132
133
134bool
135nouveau_screen_bo_get_handle(struct pipe_screen *pscreen,
136                             struct nouveau_bo *bo,
137                             unsigned stride,
138                             struct winsys_handle *whandle)
139{
140   whandle->stride = stride;
141
142   if (whandle->type == WINSYS_HANDLE_TYPE_SHARED) {
143      return nouveau_bo_name_get(bo, &whandle->handle) == 0;
144   } else if (whandle->type == WINSYS_HANDLE_TYPE_KMS) {
145      whandle->handle = bo->handle;
146      return true;
147   } else if (whandle->type == WINSYS_HANDLE_TYPE_FD) {
148      return nouveau_bo_set_prime(bo, (int *)&whandle->handle) == 0;
149   } else {
150      return false;
151   }
152}
153
154static void
155nouveau_disk_cache_create(struct nouveau_screen *screen)
156{
157   struct mesa_sha1 ctx;
158   unsigned char sha1[20];
159   char cache_id[20 * 2 + 1];
160   uint64_t driver_flags = 0;
161
162   _mesa_sha1_init(&ctx);
163   if (!disk_cache_get_function_identifier(nouveau_disk_cache_create,
164                                           &ctx))
165      return;
166
167   _mesa_sha1_final(&ctx, sha1);
168   disk_cache_format_hex_id(cache_id, sha1, 20 * 2);
169
170   if (screen->prefer_nir)
171      driver_flags |= NOUVEAU_SHADER_CACHE_FLAGS_IR_NIR;
172   else
173      driver_flags |= NOUVEAU_SHADER_CACHE_FLAGS_IR_TGSI;
174
175   screen->disk_shader_cache =
176      disk_cache_create(nouveau_screen_get_name(&screen->base),
177                        cache_id, driver_flags);
178}
179
180static void*
181reserve_vma(uintptr_t start, uint64_t reserved_size)
182{
183   void *reserved = os_mmap((void*)start, reserved_size, PROT_NONE,
184                            MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
185   if (reserved == MAP_FAILED)
186      return NULL;
187   return reserved;
188}
189
190int
191nouveau_screen_init(struct nouveau_screen *screen, struct nouveau_device *dev)
192{
193   struct pipe_screen *pscreen = &screen->base;
194   struct nv04_fifo nv04_data = { .vram = 0xbeef0201, .gart = 0xbeef0202 };
195   struct nvc0_fifo nvc0_data = { };
196   uint64_t time;
197   int size, ret;
198   void *data;
199   union nouveau_bo_config mm_config;
200
201   char *nv_dbg = getenv("NOUVEAU_MESA_DEBUG");
202   if (nv_dbg)
203      nouveau_mesa_debug = atoi(nv_dbg);
204
205   screen->prefer_nir = !debug_get_bool_option("NV50_PROG_USE_TGSI", false);
206
207   screen->force_enable_cl = debug_get_bool_option("NOUVEAU_ENABLE_CL", false);
208   if (screen->force_enable_cl)
209      glsl_type_singleton_init_or_ref();
210
211   screen->disable_fences = debug_get_bool_option("NOUVEAU_DISABLE_FENCES", false);
212
213   /* These must be set before any failure is possible, as the cleanup
214    * paths assume they're responsible for deleting them.
215    */
216   screen->drm = nouveau_drm(&dev->object);
217   screen->device = dev;
218
219   /*
220    * this is initialized to 1 in nouveau_drm_screen_create after screen
221    * is fully constructed and added to the global screen list.
222    */
223   screen->refcount = -1;
224
225   if (dev->chipset < 0xc0) {
226      data = &nv04_data;
227      size = sizeof(nv04_data);
228   } else {
229      data = &nvc0_data;
230      size = sizeof(nvc0_data);
231   }
232
233   bool enable_svm = debug_get_bool_option("NOUVEAU_SVM", false);
234   screen->has_svm = false;
235   /* we only care about HMM with OpenCL enabled */
236   if (dev->chipset > 0x130 && screen->force_enable_cl && enable_svm) {
237      /* Before being able to enable SVM we need to carve out some memory for
238       * driver bo allocations. Let's just base the size on the available VRAM.
239       *
240       * 40 bit is the biggest we care about and for 32 bit systems we don't
241       * want to allocate all of the available memory either.
242       *
243       * Also we align the size we want to reserve to the next POT to make use
244       * of hugepages.
245       */
246      const int vram_shift = util_logbase2_ceil64(dev->vram_size);
247      const int limit_bit =
248         MIN2(sizeof(void*) * 8 - 1, NV_GENERIC_VM_LIMIT_SHIFT);
249      screen->svm_cutout_size =
250         BITFIELD64_BIT(MIN2(sizeof(void*) == 4 ? 26 : NV_GENERIC_VM_LIMIT_SHIFT, vram_shift));
251
252      size_t start = screen->svm_cutout_size;
253      do {
254         screen->svm_cutout = reserve_vma(start, screen->svm_cutout_size);
255         if (!screen->svm_cutout) {
256            start += screen->svm_cutout_size;
257            continue;
258         }
259
260         struct drm_nouveau_svm_init svm_args = {
261            .unmanaged_addr = (uintptr_t)screen->svm_cutout,
262            .unmanaged_size = screen->svm_cutout_size,
263         };
264
265         ret = drmCommandWrite(screen->drm->fd, DRM_NOUVEAU_SVM_INIT,
266                               &svm_args, sizeof(svm_args));
267         screen->has_svm = !ret;
268         if (!screen->has_svm)
269            os_munmap(screen->svm_cutout, screen->svm_cutout_size);
270         break;
271      } while ((start + screen->svm_cutout_size) < BITFIELD64_MASK(limit_bit));
272   }
273
274   switch (dev->chipset) {
275   case 0x0ea: /* TK1, GK20A */
276   case 0x12b: /* TX1, GM20B */
277   case 0x13b: /* TX2, GP10B */
278      screen->tegra_sector_layout = true;
279      break;
280   default:
281      /* Xavier's GPU and everything else */
282      screen->tegra_sector_layout = false;
283      break;
284   }
285
286   /*
287    * Set default VRAM domain if not overridden
288    */
289   if (!screen->vram_domain) {
290      if (dev->vram_size > 0)
291         screen->vram_domain = NOUVEAU_BO_VRAM;
292      else
293         screen->vram_domain = NOUVEAU_BO_GART;
294   }
295
296   ret = nouveau_object_new(&dev->object, 0, NOUVEAU_FIFO_CHANNEL_CLASS,
297                            data, size, &screen->channel);
298   if (ret)
299      goto err;
300
301   ret = nouveau_client_new(screen->device, &screen->client);
302   if (ret)
303      goto err;
304   ret = nouveau_pushbuf_new(screen->client, screen->channel,
305                             4, 512 * 1024, 1,
306                             &screen->pushbuf);
307   if (ret)
308      goto err;
309
310   /* getting CPU time first appears to be more accurate */
311   screen->cpu_gpu_time_delta = os_time_get();
312
313   ret = nouveau_getparam(dev, NOUVEAU_GETPARAM_PTIMER_TIME, &time);
314   if (!ret)
315      screen->cpu_gpu_time_delta = time - screen->cpu_gpu_time_delta * 1000;
316
317   snprintf(screen->chipset_name, sizeof(screen->chipset_name), "NV%02X", dev->chipset);
318   pscreen->get_name = nouveau_screen_get_name;
319   pscreen->get_vendor = nouveau_screen_get_vendor;
320   pscreen->get_device_vendor = nouveau_screen_get_device_vendor;
321   pscreen->get_disk_shader_cache = nouveau_screen_get_disk_shader_cache;
322
323   pscreen->get_timestamp = nouveau_screen_get_timestamp;
324
325   pscreen->fence_reference = nouveau_screen_fence_ref;
326   pscreen->fence_finish = nouveau_screen_fence_finish;
327
328   nouveau_disk_cache_create(screen);
329
330   screen->transfer_pushbuf_threshold = 192;
331   screen->lowmem_bindings = PIPE_BIND_GLOBAL; /* gallium limit */
332   screen->vidmem_bindings =
333      PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL |
334      PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT |
335      PIPE_BIND_CURSOR |
336      PIPE_BIND_SAMPLER_VIEW |
337      PIPE_BIND_SHADER_BUFFER | PIPE_BIND_SHADER_IMAGE |
338      PIPE_BIND_COMPUTE_RESOURCE |
339      PIPE_BIND_GLOBAL;
340   screen->sysmem_bindings =
341      PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_STREAM_OUTPUT |
342      PIPE_BIND_COMMAND_ARGS_BUFFER;
343
344   memset(&mm_config, 0, sizeof(mm_config));
345
346   screen->mm_GART = nouveau_mm_create(dev,
347                                       NOUVEAU_BO_GART | NOUVEAU_BO_MAP,
348                                       &mm_config);
349   screen->mm_VRAM = nouveau_mm_create(dev, NOUVEAU_BO_VRAM, &mm_config);
350   return 0;
351
352err:
353   if (screen->svm_cutout)
354      os_munmap(screen->svm_cutout, screen->svm_cutout_size);
355   return ret;
356}
357
358void
359nouveau_screen_fini(struct nouveau_screen *screen)
360{
361   int fd = screen->drm->fd;
362
363   if (screen->force_enable_cl)
364      glsl_type_singleton_decref();
365   if (screen->has_svm)
366      os_munmap(screen->svm_cutout, screen->svm_cutout_size);
367
368   nouveau_mm_destroy(screen->mm_GART);
369   nouveau_mm_destroy(screen->mm_VRAM);
370
371   nouveau_pushbuf_del(&screen->pushbuf);
372
373   nouveau_client_del(&screen->client);
374   nouveau_object_del(&screen->channel);
375
376   nouveau_device_del(&screen->device);
377   nouveau_drm_del(&screen->drm);
378   close(fd);
379
380   disk_cache_destroy(screen->disk_shader_cache);
381}
382
383static void
384nouveau_set_debug_callback(struct pipe_context *pipe,
385                           const struct util_debug_callback *cb)
386{
387   struct nouveau_context *context = nouveau_context(pipe);
388
389   if (cb)
390      context->debug = *cb;
391   else
392      memset(&context->debug, 0, sizeof(context->debug));
393}
394
395void
396nouveau_context_init(struct nouveau_context *context)
397{
398   context->pipe.set_debug_callback = nouveau_set_debug_callback;
399}
400