2 * Copyright © 2009 Corbin Simpson <MostAwesomeDude@gmail.com>
3 * Copyright © 2009 Joakim Sindholt <opensource@zhasha.com>
4 * Copyright © 2011 Marek Olšák <maraeo@gmail.com>
5 * Copyright © 2015 Advanced Micro Devices, Inc.
8 * Permission is hereby granted, free of charge, to any person obtaining
9 * a copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
11 * without limitation the rights to use, copy, modify, merge, publish,
12 * distribute, sub license, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
18 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
20 * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
23 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 * The above copyright notice and this permission notice (including the
26 * next paragraph) shall be included in all copies or substantial portions
30 #include "amdgpu_cs.h"
31 #include "amdgpu_public.h"
33 #include "util/u_cpu_detect.h"
34 #include "util/u_hash_table.h"
35 #include "util/hash_table.h"
36 #include "util/xmlconfig.h"
37 #include <amdgpu_drm.h>
42 #include "ac_llvm_util.h"
45 #ifndef AMDGPU_INFO_NUM_VRAM_CPU_PAGE_FAULTS
46 #define AMDGPU_INFO_NUM_VRAM_CPU_PAGE_FAULTS 0x1E
49 static struct util_hash_table
*dev_tab
= NULL
;
50 static simple_mtx_t dev_tab_mutex
= _SIMPLE_MTX_INITIALIZER_NP
;
52 DEBUG_GET_ONCE_BOOL_OPTION(all_bos
, "RADEON_ALL_BOS", false)
54 static void handle_env_var_force_family(struct amdgpu_winsys
*ws
)
56 const char *family
= debug_get_option("SI_FORCE_FAMILY", NULL
);
62 for (i
= CHIP_TAHITI
; i
< CHIP_LAST
; i
++) {
63 if (!strcmp(family
, ac_get_llvm_processor_name(i
))) {
64 /* Override family and chip_class. */
66 ws
->info
.name
= "GCN-NOOP";
69 ws
->info
.chip_class
= GFX10
;
70 else if (i
>= CHIP_VEGA10
)
71 ws
->info
.chip_class
= GFX9
;
72 else if (i
>= CHIP_TONGA
)
73 ws
->info
.chip_class
= GFX8
;
74 else if (i
>= CHIP_BONAIRE
)
75 ws
->info
.chip_class
= GFX7
;
77 ws
->info
.chip_class
= GFX6
;
79 /* Don't submit any IBs. */
80 setenv("RADEON_NOOP", "1", 1);
85 fprintf(stderr
, "radeonsi: Unknown family: %s\n", family
);
89 /* Helper function to do the ioctls needed for setup and init. */
90 static bool do_winsys_init(struct amdgpu_winsys
*ws
,
91 const struct pipe_screen_config
*config
,
94 if (!ac_query_gpu_info(fd
, ws
->dev
, &ws
->info
, &ws
->amdinfo
))
97 /* TODO: Enable this once the kernel handles it efficiently. */
98 if (ws
->info
.has_dedicated_vram
)
99 ws
->info
.has_local_buffers
= false;
101 handle_env_var_force_family(ws
);
103 ws
->addrlib
= amdgpu_addr_create(&ws
->info
, &ws
->amdinfo
, &ws
->info
.max_alignment
);
105 fprintf(stderr
, "amdgpu: Cannot create addrlib.\n");
109 ws
->check_vm
= strstr(debug_get_option("R600_DEBUG", ""), "check_vm") != NULL
||
110 strstr(debug_get_option("AMD_DEBUG", ""), "check_vm") != NULL
;
111 ws
->debug_all_bos
= debug_get_option_all_bos();
112 ws
->reserve_vmid
= strstr(debug_get_option("R600_DEBUG", ""), "reserve_vmid") != NULL
||
113 strstr(debug_get_option("AMD_DEBUG", ""), "reserve_vmid") != NULL
;
114 ws
->zero_all_vram_allocs
= strstr(debug_get_option("R600_DEBUG", ""), "zerovram") != NULL
||
115 strstr(debug_get_option("AMD_DEBUG", ""), "zerovram") != NULL
||
116 driQueryOptionb(config
->options
, "radeonsi_zerovram");
121 amdgpu_device_deinitialize(ws
->dev
);
126 static void do_winsys_deinit(struct amdgpu_winsys
*ws
)
128 if (ws
->reserve_vmid
)
129 amdgpu_vm_unreserve_vmid(ws
->dev
, 0);
131 if (util_queue_is_initialized(&ws
->cs_queue
))
132 util_queue_destroy(&ws
->cs_queue
);
134 simple_mtx_destroy(&ws
->bo_fence_lock
);
135 for (unsigned i
= 0; i
< NUM_SLAB_ALLOCATORS
; i
++) {
136 if (ws
->bo_slabs
[i
].groups
)
137 pb_slabs_deinit(&ws
->bo_slabs
[i
]);
139 pb_cache_deinit(&ws
->bo_cache
);
140 util_hash_table_destroy(ws
->bo_export_table
);
141 simple_mtx_destroy(&ws
->sws_list_lock
);
142 simple_mtx_destroy(&ws
->global_bo_list_lock
);
143 simple_mtx_destroy(&ws
->bo_export_table_lock
);
145 AddrDestroy(ws
->addrlib
);
146 amdgpu_device_deinitialize(ws
->dev
);
150 static void amdgpu_winsys_destroy(struct radeon_winsys
*rws
)
152 struct amdgpu_screen_winsys
*sws
= amdgpu_screen_winsys(rws
);
153 struct amdgpu_winsys
*ws
= sws
->aws
;
156 /* When the reference counter drops to zero, remove the device pointer
158 * This must happen while the mutex is locked, so that
159 * amdgpu_winsys_create in another thread doesn't get the winsys
160 * from the table when the counter drops to 0.
162 simple_mtx_lock(&dev_tab_mutex
);
164 destroy
= pipe_reference(&ws
->reference
, NULL
);
165 if (destroy
&& dev_tab
) {
166 util_hash_table_remove(dev_tab
, ws
->dev
);
167 if (util_hash_table_count(dev_tab
) == 0) {
168 util_hash_table_destroy(dev_tab
);
173 simple_mtx_unlock(&dev_tab_mutex
);
176 do_winsys_deinit(ws
);
178 struct amdgpu_screen_winsys
**sws_iter
;
180 /* Remove this amdgpu_screen_winsys from amdgpu_winsys' list */
181 simple_mtx_lock(&ws
->sws_list_lock
);
182 for (sws_iter
= &ws
->sws_list
; *sws_iter
; sws_iter
= &(*sws_iter
)->next
) {
183 if (*sws_iter
== sws
) {
184 *sws_iter
= sws
->next
;
188 simple_mtx_unlock(&ws
->sws_list_lock
);
195 static void amdgpu_winsys_query_info(struct radeon_winsys
*rws
,
196 struct radeon_info
*info
)
198 *info
= amdgpu_winsys(rws
)->info
;
201 static bool amdgpu_cs_request_feature(struct radeon_cmdbuf
*rcs
,
202 enum radeon_feature_id fid
,
208 static uint64_t amdgpu_query_value(struct radeon_winsys
*rws
,
209 enum radeon_value_id value
)
211 struct amdgpu_winsys
*ws
= amdgpu_winsys(rws
);
212 struct amdgpu_heap_info heap
;
216 case RADEON_REQUESTED_VRAM_MEMORY
:
217 return ws
->allocated_vram
;
218 case RADEON_REQUESTED_GTT_MEMORY
:
219 return ws
->allocated_gtt
;
220 case RADEON_MAPPED_VRAM
:
221 return ws
->mapped_vram
;
222 case RADEON_MAPPED_GTT
:
223 return ws
->mapped_gtt
;
224 case RADEON_BUFFER_WAIT_TIME_NS
:
225 return ws
->buffer_wait_time
;
226 case RADEON_NUM_MAPPED_BUFFERS
:
227 return ws
->num_mapped_buffers
;
228 case RADEON_TIMESTAMP
:
229 amdgpu_query_info(ws
->dev
, AMDGPU_INFO_TIMESTAMP
, 8, &retval
);
231 case RADEON_NUM_GFX_IBS
:
232 return ws
->num_gfx_IBs
;
233 case RADEON_NUM_SDMA_IBS
:
234 return ws
->num_sdma_IBs
;
235 case RADEON_GFX_BO_LIST_COUNTER
:
236 return ws
->gfx_bo_list_counter
;
237 case RADEON_GFX_IB_SIZE_COUNTER
:
238 return ws
->gfx_ib_size_counter
;
239 case RADEON_NUM_BYTES_MOVED
:
240 amdgpu_query_info(ws
->dev
, AMDGPU_INFO_NUM_BYTES_MOVED
, 8, &retval
);
242 case RADEON_NUM_EVICTIONS
:
243 amdgpu_query_info(ws
->dev
, AMDGPU_INFO_NUM_EVICTIONS
, 8, &retval
);
245 case RADEON_NUM_VRAM_CPU_PAGE_FAULTS
:
246 amdgpu_query_info(ws
->dev
, AMDGPU_INFO_NUM_VRAM_CPU_PAGE_FAULTS
, 8, &retval
);
248 case RADEON_VRAM_USAGE
:
249 amdgpu_query_heap_info(ws
->dev
, AMDGPU_GEM_DOMAIN_VRAM
, 0, &heap
);
250 return heap
.heap_usage
;
251 case RADEON_VRAM_VIS_USAGE
:
252 amdgpu_query_heap_info(ws
->dev
, AMDGPU_GEM_DOMAIN_VRAM
,
253 AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED
, &heap
);
254 return heap
.heap_usage
;
255 case RADEON_GTT_USAGE
:
256 amdgpu_query_heap_info(ws
->dev
, AMDGPU_GEM_DOMAIN_GTT
, 0, &heap
);
257 return heap
.heap_usage
;
258 case RADEON_GPU_TEMPERATURE
:
259 amdgpu_query_sensor_info(ws
->dev
, AMDGPU_INFO_SENSOR_GPU_TEMP
, 4, &retval
);
261 case RADEON_CURRENT_SCLK
:
262 amdgpu_query_sensor_info(ws
->dev
, AMDGPU_INFO_SENSOR_GFX_SCLK
, 4, &retval
);
264 case RADEON_CURRENT_MCLK
:
265 amdgpu_query_sensor_info(ws
->dev
, AMDGPU_INFO_SENSOR_GFX_MCLK
, 4, &retval
);
267 case RADEON_CS_THREAD_TIME
:
268 return util_queue_get_thread_time_nano(&ws
->cs_queue
, 0);
273 static bool amdgpu_read_registers(struct radeon_winsys
*rws
,
275 unsigned num_registers
, uint32_t *out
)
277 struct amdgpu_winsys
*ws
= amdgpu_winsys(rws
);
279 return amdgpu_read_mm_registers(ws
->dev
, reg_offset
/ 4, num_registers
,
280 0xffffffff, 0, out
) == 0;
283 static unsigned hash_pointer(void *key
)
285 return _mesa_hash_pointer(key
);
288 static int compare_pointers(void *key1
, void *key2
)
293 static bool amdgpu_winsys_unref(struct radeon_winsys
*rws
)
295 /* radeon_winsys corresponds to amdgpu_screen_winsys, which is never
296 * referenced multiple times, so amdgpu_winsys_destroy always needs to be
297 * called. It handles reference counting for amdgpu_winsys.
302 static void amdgpu_pin_threads_to_L3_cache(struct radeon_winsys
*rws
,
305 struct amdgpu_winsys
*ws
= amdgpu_winsys(rws
);
307 util_pin_thread_to_L3(ws
->cs_queue
.threads
[0], cache
,
308 util_cpu_caps
.cores_per_L3
);
311 PUBLIC
struct radeon_winsys
*
312 amdgpu_winsys_create(int fd
, const struct pipe_screen_config
*config
,
313 radeon_screen_create_t screen_create
)
315 struct amdgpu_screen_winsys
*ws
;
316 struct amdgpu_winsys
*aws
;
317 amdgpu_device_handle dev
;
318 uint32_t drm_major
, drm_minor
, r
;
320 ws
= CALLOC_STRUCT(amdgpu_screen_winsys
);
324 ws
->fd
= fcntl(fd
, F_DUPFD_CLOEXEC
, 0);
326 /* Look up the winsys from the dev table. */
327 simple_mtx_lock(&dev_tab_mutex
);
329 dev_tab
= util_hash_table_create(hash_pointer
, compare_pointers
);
331 /* Initialize the amdgpu device. This should always return the same pointer
332 * for the same fd. */
333 r
= amdgpu_device_initialize(fd
, &drm_major
, &drm_minor
, &dev
);
335 fprintf(stderr
, "amdgpu: amdgpu_device_initialize failed.\n");
339 /* Lookup a winsys if we have already created one for this device. */
340 aws
= util_hash_table_get(dev_tab
, dev
);
342 pipe_reference(NULL
, &aws
->reference
);
344 /* Release the device handle, because we don't need it anymore.
345 * This function is returning an existing winsys instance, which
346 * has its own device handle.
348 amdgpu_device_deinitialize(dev
);
350 /* Create a new winsys. */
351 aws
= CALLOC_STRUCT(amdgpu_winsys
);
356 aws
->info
.drm_major
= drm_major
;
357 aws
->info
.drm_minor
= drm_minor
;
359 if (!do_winsys_init(aws
, config
, fd
))
362 /* Create managers. */
363 pb_cache_init(&aws
->bo_cache
, RADEON_MAX_CACHED_HEAPS
,
364 500000, aws
->check_vm
? 1.0f
: 2.0f
, 0,
365 (aws
->info
.vram_size
+ aws
->info
.gart_size
) / 8,
366 amdgpu_bo_destroy
, amdgpu_bo_can_reclaim
);
368 unsigned min_slab_order
= 9; /* 512 bytes */
369 unsigned max_slab_order
= 18; /* 256 KB - higher numbers increase memory usage */
370 unsigned num_slab_orders_per_allocator
= (max_slab_order
- min_slab_order
) /
373 /* Divide the size order range among slab managers. */
374 for (unsigned i
= 0; i
< NUM_SLAB_ALLOCATORS
; i
++) {
375 unsigned min_order
= min_slab_order
;
376 unsigned max_order
= MIN2(min_order
+ num_slab_orders_per_allocator
,
379 if (!pb_slabs_init(&aws
->bo_slabs
[i
],
380 min_order
, max_order
,
381 RADEON_MAX_SLAB_HEAPS
,
383 amdgpu_bo_can_reclaim_slab
,
384 amdgpu_bo_slab_alloc
,
385 amdgpu_bo_slab_free
)) {
386 amdgpu_winsys_destroy(&ws
->base
);
387 simple_mtx_unlock(&dev_tab_mutex
);
391 min_slab_order
= max_order
+ 1;
394 aws
->info
.min_alloc_size
= 1 << aws
->bo_slabs
[0].min_order
;
397 pipe_reference_init(&aws
->reference
, 1);
399 list_inithead(&aws
->global_bo_list
);
400 aws
->bo_export_table
= util_hash_table_create(hash_pointer
, compare_pointers
);
402 (void) simple_mtx_init(&aws
->sws_list_lock
, mtx_plain
);
403 (void) simple_mtx_init(&aws
->global_bo_list_lock
, mtx_plain
);
404 (void) simple_mtx_init(&aws
->bo_fence_lock
, mtx_plain
);
405 (void) simple_mtx_init(&aws
->bo_export_table_lock
, mtx_plain
);
407 if (!util_queue_init(&aws
->cs_queue
, "cs", 8, 1,
408 UTIL_QUEUE_INIT_RESIZE_IF_FULL
)) {
409 amdgpu_winsys_destroy(&ws
->base
);
410 simple_mtx_unlock(&dev_tab_mutex
);
414 util_hash_table_set(dev_tab
, dev
, aws
);
416 if (aws
->reserve_vmid
) {
417 r
= amdgpu_vm_reserve_vmid(dev
, 0);
419 amdgpu_winsys_destroy(&ws
->base
);
420 simple_mtx_unlock(&dev_tab_mutex
);
429 ws
->base
.unref
= amdgpu_winsys_unref
;
430 ws
->base
.destroy
= amdgpu_winsys_destroy
;
431 ws
->base
.query_info
= amdgpu_winsys_query_info
;
432 ws
->base
.cs_request_feature
= amdgpu_cs_request_feature
;
433 ws
->base
.query_value
= amdgpu_query_value
;
434 ws
->base
.read_registers
= amdgpu_read_registers
;
435 ws
->base
.pin_threads_to_L3_cache
= amdgpu_pin_threads_to_L3_cache
;
437 amdgpu_bo_init_functions(ws
);
438 amdgpu_cs_init_functions(ws
);
439 amdgpu_surface_init_functions(ws
);
441 /* Create the screen at the end. The winsys must be initialized
444 * Alternatively, we could create the screen based on "ws->gen"
445 * and link all drivers into one binary blob. */
446 ws
->base
.screen
= screen_create(&ws
->base
, config
);
447 if (!ws
->base
.screen
) {
448 amdgpu_winsys_destroy(&ws
->base
);
449 simple_mtx_unlock(&dev_tab_mutex
);
453 simple_mtx_lock(&aws
->sws_list_lock
);
454 ws
->next
= aws
->sws_list
;
456 simple_mtx_unlock(&aws
->sws_list_lock
);
458 /* We must unlock the mutex once the winsys is fully initialized, so that
459 * other threads attempting to create the winsys from the same fd will
460 * get a fully initialized winsys and not just half-way initialized. */
461 simple_mtx_unlock(&dev_tab_mutex
);
470 simple_mtx_unlock(&dev_tab_mutex
);