1254885Sdumbbell/* 2254885Sdumbbell * Copyright 2008 Advanced Micro Devices, Inc. 3254885Sdumbbell * Copyright 2008 Red Hat Inc. 4254885Sdumbbell * Copyright 2009 Jerome Glisse. 5254885Sdumbbell * 6254885Sdumbbell * Permission is hereby granted, free of charge, to any person obtaining a 7254885Sdumbbell * copy of this software and associated documentation files (the "Software"), 8254885Sdumbbell * to deal in the Software without restriction, including without limitation 9254885Sdumbbell * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10254885Sdumbbell * and/or sell copies of the Software, and to permit persons to whom the 11254885Sdumbbell * Software is furnished to do so, subject to the following conditions: 12254885Sdumbbell * 13254885Sdumbbell * The above copyright notice and this permission notice shall be included in 14254885Sdumbbell * all copies or substantial portions of the Software. 15254885Sdumbbell * 16254885Sdumbbell * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17254885Sdumbbell * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18254885Sdumbbell * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19254885Sdumbbell * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20254885Sdumbbell * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21254885Sdumbbell * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22254885Sdumbbell * OTHER DEALINGS IN THE SOFTWARE. 23254885Sdumbbell * 24254885Sdumbbell * Authors: Dave Airlie 25254885Sdumbbell * Alex Deucher 26254885Sdumbbell * Jerome Glisse 27254885Sdumbbell * Christian K��nig 28254885Sdumbbell */ 29254885Sdumbbell 30254885Sdumbbell#include <sys/cdefs.h> 31254885Sdumbbell__FBSDID("$FreeBSD: releng/10.2/sys/dev/drm2/radeon/radeon_ring.c 282199 2015-04-28 19:35:05Z dumbbell $"); 32254885Sdumbbell 33254885Sdumbbell#include <dev/drm2/drmP.h> 34254885Sdumbbell#include <dev/drm2/radeon/radeon_drm.h> 35254885Sdumbbell#include "radeon_reg.h" 36254885Sdumbbell#include "radeon.h" 37254885Sdumbbell#include "atom.h" 38254885Sdumbbell 39282199Sdumbbell#ifdef FREEBSD_WIP 40254885Sdumbbell/* 41254885Sdumbbell * IB 42254885Sdumbbell * IBs (Indirect Buffers) and areas of GPU accessible memory where 43254885Sdumbbell * commands are stored. You can put a pointer to the IB in the 44254885Sdumbbell * command ring and the hw will fetch the commands from the IB 45254885Sdumbbell * and execute them. Generally userspace acceleration drivers 46254885Sdumbbell * produce command buffers which are send to the kernel and 47254885Sdumbbell * put in IBs for execution by the requested ring. 48254885Sdumbbell */ 49254885Sdumbbellstatic int radeon_debugfs_sa_init(struct radeon_device *rdev); 50282199Sdumbbell#endif /* FREEBSD_WIP */ 51254885Sdumbbell 52254885Sdumbbell/** 53254885Sdumbbell * radeon_ib_get - request an IB (Indirect Buffer) 54254885Sdumbbell * 55254885Sdumbbell * @rdev: radeon_device pointer 56254885Sdumbbell * @ring: ring index the IB is associated with 57254885Sdumbbell * @ib: IB object returned 58254885Sdumbbell * @size: requested IB size 59254885Sdumbbell * 60254885Sdumbbell * Request an IB (all asics). IBs are allocated using the 61254885Sdumbbell * suballocator. 62254885Sdumbbell * Returns 0 on success, error on failure. 63254885Sdumbbell */ 64254885Sdumbbellint radeon_ib_get(struct radeon_device *rdev, int ring, 65254885Sdumbbell struct radeon_ib *ib, struct radeon_vm *vm, 66254885Sdumbbell unsigned size) 67254885Sdumbbell{ 68254885Sdumbbell int i, r; 69254885Sdumbbell 70254885Sdumbbell r = radeon_sa_bo_new(rdev, &rdev->ring_tmp_bo, &ib->sa_bo, size, 256, true); 71254885Sdumbbell if (r) { 72254885Sdumbbell dev_err(rdev->dev, "failed to get a new IB (%d)\n", r); 73254885Sdumbbell return r; 74254885Sdumbbell } 75254885Sdumbbell 76254885Sdumbbell r = radeon_semaphore_create(rdev, &ib->semaphore); 77254885Sdumbbell if (r) { 78254885Sdumbbell return r; 79254885Sdumbbell } 80254885Sdumbbell 81254885Sdumbbell ib->ring = ring; 82254885Sdumbbell ib->fence = NULL; 83254885Sdumbbell ib->ptr = radeon_sa_bo_cpu_addr(ib->sa_bo); 84254885Sdumbbell ib->vm = vm; 85254885Sdumbbell if (vm) { 86254885Sdumbbell /* ib pool is bound at RADEON_VA_IB_OFFSET in virtual address 87254885Sdumbbell * space and soffset is the offset inside the pool bo 88254885Sdumbbell */ 89254885Sdumbbell ib->gpu_addr = ib->sa_bo->soffset + RADEON_VA_IB_OFFSET; 90254885Sdumbbell } else { 91254885Sdumbbell ib->gpu_addr = radeon_sa_bo_gpu_addr(ib->sa_bo); 92254885Sdumbbell } 93254885Sdumbbell ib->is_const_ib = false; 94254885Sdumbbell for (i = 0; i < RADEON_NUM_RINGS; ++i) 95254885Sdumbbell ib->sync_to[i] = NULL; 96254885Sdumbbell 97254885Sdumbbell return 0; 98254885Sdumbbell} 99254885Sdumbbell 100254885Sdumbbell/** 101254885Sdumbbell * radeon_ib_free - free an IB (Indirect Buffer) 102254885Sdumbbell * 103254885Sdumbbell * @rdev: radeon_device pointer 104254885Sdumbbell * @ib: IB object to free 105254885Sdumbbell * 106254885Sdumbbell * Free an IB (all asics). 107254885Sdumbbell */ 108254885Sdumbbellvoid radeon_ib_free(struct radeon_device *rdev, struct radeon_ib *ib) 109254885Sdumbbell{ 110254885Sdumbbell radeon_semaphore_free(rdev, &ib->semaphore, ib->fence); 111254885Sdumbbell radeon_sa_bo_free(rdev, &ib->sa_bo, ib->fence); 112254885Sdumbbell radeon_fence_unref(&ib->fence); 113254885Sdumbbell} 114254885Sdumbbell 115254885Sdumbbell/** 116254885Sdumbbell * radeon_ib_schedule - schedule an IB (Indirect Buffer) on the ring 117254885Sdumbbell * 118254885Sdumbbell * @rdev: radeon_device pointer 119254885Sdumbbell * @ib: IB object to schedule 120254885Sdumbbell * @const_ib: Const IB to schedule (SI only) 121254885Sdumbbell * 122254885Sdumbbell * Schedule an IB on the associated ring (all asics). 123254885Sdumbbell * Returns 0 on success, error on failure. 124254885Sdumbbell * 125254885Sdumbbell * On SI, there are two parallel engines fed from the primary ring, 126254885Sdumbbell * the CE (Constant Engine) and the DE (Drawing Engine). Since 127254885Sdumbbell * resource descriptors have moved to memory, the CE allows you to 128254885Sdumbbell * prime the caches while the DE is updating register state so that 129254885Sdumbbell * the resource descriptors will be already in cache when the draw is 130254885Sdumbbell * processed. To accomplish this, the userspace driver submits two 131254885Sdumbbell * IBs, one for the CE and one for the DE. If there is a CE IB (called 132254885Sdumbbell * a CONST_IB), it will be put on the ring prior to the DE IB. Prior 133254885Sdumbbell * to SI there was just a DE IB. 134254885Sdumbbell */ 135254885Sdumbbellint radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib, 136254885Sdumbbell struct radeon_ib *const_ib) 137254885Sdumbbell{ 138254885Sdumbbell struct radeon_ring *ring = &rdev->ring[ib->ring]; 139254885Sdumbbell bool need_sync = false; 140254885Sdumbbell int i, r = 0; 141254885Sdumbbell 142254885Sdumbbell if (!ib->length_dw || !ring->ready) { 143254885Sdumbbell /* TODO: Nothings in the ib we should report. */ 144254885Sdumbbell dev_err(rdev->dev, "couldn't schedule ib\n"); 145254885Sdumbbell return -EINVAL; 146254885Sdumbbell } 147254885Sdumbbell 148254885Sdumbbell /* 64 dwords should be enough for fence too */ 149254885Sdumbbell r = radeon_ring_lock(rdev, ring, 64 + RADEON_NUM_RINGS * 8); 150254885Sdumbbell if (r) { 151254885Sdumbbell dev_err(rdev->dev, "scheduling IB failed (%d).\n", r); 152254885Sdumbbell return r; 153254885Sdumbbell } 154254885Sdumbbell for (i = 0; i < RADEON_NUM_RINGS; ++i) { 155254885Sdumbbell struct radeon_fence *fence = ib->sync_to[i]; 156254885Sdumbbell if (radeon_fence_need_sync(fence, ib->ring)) { 157254885Sdumbbell need_sync = true; 158254885Sdumbbell radeon_semaphore_sync_rings(rdev, ib->semaphore, 159254885Sdumbbell fence->ring, ib->ring); 160254885Sdumbbell radeon_fence_note_sync(fence, ib->ring); 161254885Sdumbbell } 162254885Sdumbbell } 163254885Sdumbbell /* immediately free semaphore when we don't need to sync */ 164254885Sdumbbell if (!need_sync) { 165254885Sdumbbell radeon_semaphore_free(rdev, &ib->semaphore, NULL); 166254885Sdumbbell } 167254885Sdumbbell /* if we can't remember our last VM flush then flush now! */ 168282199Sdumbbell /* XXX figure out why we have to flush for every IB */ 169282199Sdumbbell if (ib->vm /*&& !ib->vm->last_flush*/) { 170254885Sdumbbell radeon_ring_vm_flush(rdev, ib->ring, ib->vm); 171254885Sdumbbell } 172254885Sdumbbell if (const_ib) { 173254885Sdumbbell radeon_ring_ib_execute(rdev, const_ib->ring, const_ib); 174254885Sdumbbell radeon_semaphore_free(rdev, &const_ib->semaphore, NULL); 175254885Sdumbbell } 176254885Sdumbbell radeon_ring_ib_execute(rdev, ib->ring, ib); 177254885Sdumbbell r = radeon_fence_emit(rdev, &ib->fence, ib->ring); 178254885Sdumbbell if (r) { 179254885Sdumbbell dev_err(rdev->dev, "failed to emit fence for new IB (%d)\n", r); 180254885Sdumbbell radeon_ring_unlock_undo(rdev, ring); 181254885Sdumbbell return r; 182254885Sdumbbell } 183254885Sdumbbell if (const_ib) { 184254885Sdumbbell const_ib->fence = radeon_fence_ref(ib->fence); 185254885Sdumbbell } 186254885Sdumbbell /* we just flushed the VM, remember that */ 187254885Sdumbbell if (ib->vm && !ib->vm->last_flush) { 188254885Sdumbbell ib->vm->last_flush = radeon_fence_ref(ib->fence); 189254885Sdumbbell } 190254885Sdumbbell radeon_ring_unlock_commit(rdev, ring); 191254885Sdumbbell return 0; 192254885Sdumbbell} 193254885Sdumbbell 194254885Sdumbbell/** 195254885Sdumbbell * radeon_ib_pool_init - Init the IB (Indirect Buffer) pool 196254885Sdumbbell * 197254885Sdumbbell * @rdev: radeon_device pointer 198254885Sdumbbell * 199254885Sdumbbell * Initialize the suballocator to manage a pool of memory 200254885Sdumbbell * for use as IBs (all asics). 201254885Sdumbbell * Returns 0 on success, error on failure. 202254885Sdumbbell */ 203254885Sdumbbellint radeon_ib_pool_init(struct radeon_device *rdev) 204254885Sdumbbell{ 205254885Sdumbbell int r; 206254885Sdumbbell 207254885Sdumbbell if (rdev->ib_pool_ready) { 208254885Sdumbbell return 0; 209254885Sdumbbell } 210254885Sdumbbell r = radeon_sa_bo_manager_init(rdev, &rdev->ring_tmp_bo, 211254885Sdumbbell RADEON_IB_POOL_SIZE*64*1024, 212254885Sdumbbell RADEON_GEM_DOMAIN_GTT); 213254885Sdumbbell if (r) { 214254885Sdumbbell return r; 215254885Sdumbbell } 216254885Sdumbbell 217254885Sdumbbell r = radeon_sa_bo_manager_start(rdev, &rdev->ring_tmp_bo); 218254885Sdumbbell if (r) { 219254885Sdumbbell return r; 220254885Sdumbbell } 221254885Sdumbbell 222254885Sdumbbell rdev->ib_pool_ready = true; 223282199Sdumbbell#ifdef FREEBSD_WIP 224254885Sdumbbell if (radeon_debugfs_sa_init(rdev)) { 225254885Sdumbbell dev_err(rdev->dev, "failed to register debugfs file for SA\n"); 226254885Sdumbbell } 227282199Sdumbbell#endif /* FREEBSD_WIP */ 228254885Sdumbbell return 0; 229254885Sdumbbell} 230254885Sdumbbell 231254885Sdumbbell/** 232254885Sdumbbell * radeon_ib_pool_fini - Free the IB (Indirect Buffer) pool 233254885Sdumbbell * 234254885Sdumbbell * @rdev: radeon_device pointer 235254885Sdumbbell * 236254885Sdumbbell * Tear down the suballocator managing the pool of memory 237254885Sdumbbell * for use as IBs (all asics). 238254885Sdumbbell */ 239254885Sdumbbellvoid radeon_ib_pool_fini(struct radeon_device *rdev) 240254885Sdumbbell{ 241254885Sdumbbell if (rdev->ib_pool_ready) { 242254885Sdumbbell radeon_sa_bo_manager_suspend(rdev, &rdev->ring_tmp_bo); 243254885Sdumbbell radeon_sa_bo_manager_fini(rdev, &rdev->ring_tmp_bo); 244254885Sdumbbell rdev->ib_pool_ready = false; 245254885Sdumbbell } 246254885Sdumbbell} 247254885Sdumbbell 248254885Sdumbbell/** 249254885Sdumbbell * radeon_ib_ring_tests - test IBs on the rings 250254885Sdumbbell * 251254885Sdumbbell * @rdev: radeon_device pointer 252254885Sdumbbell * 253254885Sdumbbell * Test an IB (Indirect Buffer) on each ring. 254254885Sdumbbell * If the test fails, disable the ring. 255254885Sdumbbell * Returns 0 on success, error if the primary GFX ring 256254885Sdumbbell * IB test fails. 257254885Sdumbbell */ 258254885Sdumbbellint radeon_ib_ring_tests(struct radeon_device *rdev) 259254885Sdumbbell{ 260254885Sdumbbell unsigned i; 261254885Sdumbbell int r; 262254885Sdumbbell 263254885Sdumbbell for (i = 0; i < RADEON_NUM_RINGS; ++i) { 264254885Sdumbbell struct radeon_ring *ring = &rdev->ring[i]; 265254885Sdumbbell 266254885Sdumbbell if (!ring->ready) 267254885Sdumbbell continue; 268254885Sdumbbell 269254885Sdumbbell r = radeon_ib_test(rdev, i, ring); 270254885Sdumbbell if (r) { 271254885Sdumbbell ring->ready = false; 272254885Sdumbbell 273254885Sdumbbell if (i == RADEON_RING_TYPE_GFX_INDEX) { 274254885Sdumbbell /* oh, oh, that's really bad */ 275254885Sdumbbell DRM_ERROR("radeon: failed testing IB on GFX ring (%d).\n", r); 276254885Sdumbbell rdev->accel_working = false; 277254885Sdumbbell return r; 278254885Sdumbbell 279254885Sdumbbell } else { 280254885Sdumbbell /* still not good, but we can live with it */ 281254885Sdumbbell DRM_ERROR("radeon: failed testing IB on ring %d (%d).\n", i, r); 282254885Sdumbbell } 283254885Sdumbbell } 284254885Sdumbbell } 285254885Sdumbbell return 0; 286254885Sdumbbell} 287254885Sdumbbell 288282199Sdumbbell#ifdef FREEBSD_WIP 289254885Sdumbbell/* 290254885Sdumbbell * Rings 291254885Sdumbbell * Most engines on the GPU are fed via ring buffers. Ring 292254885Sdumbbell * buffers are areas of GPU accessible memory that the host 293254885Sdumbbell * writes commands into and the GPU reads commands out of. 294254885Sdumbbell * There is a rptr (read pointer) that determines where the 295254885Sdumbbell * GPU is currently reading, and a wptr (write pointer) 296254885Sdumbbell * which determines where the host has written. When the 297254885Sdumbbell * pointers are equal, the ring is idle. When the host 298254885Sdumbbell * writes commands to the ring buffer, it increments the 299254885Sdumbbell * wptr. The GPU then starts fetching commands and executes 300254885Sdumbbell * them until the pointers are equal again. 301254885Sdumbbell */ 302254885Sdumbbellstatic int radeon_debugfs_ring_init(struct radeon_device *rdev, struct radeon_ring *ring); 303282199Sdumbbell#endif /* FREEBSD_WIP */ 304254885Sdumbbell 305254885Sdumbbell/** 306254885Sdumbbell * radeon_ring_write - write a value to the ring 307254885Sdumbbell * 308254885Sdumbbell * @ring: radeon_ring structure holding ring information 309254885Sdumbbell * @v: dword (dw) value to write 310254885Sdumbbell * 311254885Sdumbbell * Write a value to the requested ring buffer (all asics). 312254885Sdumbbell */ 313254885Sdumbbellvoid radeon_ring_write(struct radeon_ring *ring, uint32_t v) 314254885Sdumbbell{ 315254885Sdumbbell#if DRM_DEBUG_CODE 316254885Sdumbbell if (ring->count_dw <= 0) { 317254885Sdumbbell DRM_ERROR("radeon: writing more dwords to the ring than expected!\n"); 318254885Sdumbbell } 319254885Sdumbbell#endif 320254885Sdumbbell ring->ring[ring->wptr++] = v; 321254885Sdumbbell ring->wptr &= ring->ptr_mask; 322254885Sdumbbell ring->count_dw--; 323254885Sdumbbell ring->ring_free_dw--; 324254885Sdumbbell} 325254885Sdumbbell 326254885Sdumbbell/** 327254885Sdumbbell * radeon_ring_supports_scratch_reg - check if the ring supports 328254885Sdumbbell * writing to scratch registers 329254885Sdumbbell * 330254885Sdumbbell * @rdev: radeon_device pointer 331254885Sdumbbell * @ring: radeon_ring structure holding ring information 332254885Sdumbbell * 333254885Sdumbbell * Check if a specific ring supports writing to scratch registers (all asics). 334254885Sdumbbell * Returns true if the ring supports writing to scratch regs, false if not. 335254885Sdumbbell */ 336254885Sdumbbellbool radeon_ring_supports_scratch_reg(struct radeon_device *rdev, 337254885Sdumbbell struct radeon_ring *ring) 338254885Sdumbbell{ 339254885Sdumbbell switch (ring->idx) { 340254885Sdumbbell case RADEON_RING_TYPE_GFX_INDEX: 341254885Sdumbbell case CAYMAN_RING_TYPE_CP1_INDEX: 342254885Sdumbbell case CAYMAN_RING_TYPE_CP2_INDEX: 343254885Sdumbbell return true; 344254885Sdumbbell default: 345254885Sdumbbell return false; 346254885Sdumbbell } 347254885Sdumbbell} 348254885Sdumbbell 349254885Sdumbbell/** 350254885Sdumbbell * radeon_ring_free_size - update the free size 351254885Sdumbbell * 352254885Sdumbbell * @rdev: radeon_device pointer 353254885Sdumbbell * @ring: radeon_ring structure holding ring information 354254885Sdumbbell * 355254885Sdumbbell * Update the free dw slots in the ring buffer (all asics). 356254885Sdumbbell */ 357254885Sdumbbellvoid radeon_ring_free_size(struct radeon_device *rdev, struct radeon_ring *ring) 358254885Sdumbbell{ 359254885Sdumbbell u32 rptr; 360254885Sdumbbell 361254885Sdumbbell if (rdev->wb.enabled) 362254885Sdumbbell rptr = le32_to_cpu(rdev->wb.wb[ring->rptr_offs/4]); 363254885Sdumbbell else 364254885Sdumbbell rptr = RREG32(ring->rptr_reg); 365254885Sdumbbell ring->rptr = (rptr & ring->ptr_reg_mask) >> ring->ptr_reg_shift; 366254885Sdumbbell /* This works because ring_size is a power of 2 */ 367254885Sdumbbell ring->ring_free_dw = (ring->rptr + (ring->ring_size / 4)); 368254885Sdumbbell ring->ring_free_dw -= ring->wptr; 369254885Sdumbbell ring->ring_free_dw &= ring->ptr_mask; 370254885Sdumbbell if (!ring->ring_free_dw) { 371254885Sdumbbell ring->ring_free_dw = ring->ring_size / 4; 372254885Sdumbbell } 373254885Sdumbbell} 374254885Sdumbbell 375254885Sdumbbell/** 376254885Sdumbbell * radeon_ring_alloc - allocate space on the ring buffer 377254885Sdumbbell * 378254885Sdumbbell * @rdev: radeon_device pointer 379254885Sdumbbell * @ring: radeon_ring structure holding ring information 380254885Sdumbbell * @ndw: number of dwords to allocate in the ring buffer 381254885Sdumbbell * 382254885Sdumbbell * Allocate @ndw dwords in the ring buffer (all asics). 383254885Sdumbbell * Returns 0 on success, error on failure. 384254885Sdumbbell */ 385254885Sdumbbellint radeon_ring_alloc(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ndw) 386254885Sdumbbell{ 387254885Sdumbbell int r; 388254885Sdumbbell 389254885Sdumbbell /* make sure we aren't trying to allocate more space than there is on the ring */ 390254885Sdumbbell if (ndw > (ring->ring_size / 4)) 391254885Sdumbbell return -ENOMEM; 392254885Sdumbbell /* Align requested size with padding so unlock_commit can 393254885Sdumbbell * pad safely */ 394254885Sdumbbell ndw = (ndw + ring->align_mask) & ~ring->align_mask; 395254885Sdumbbell while (ndw > (ring->ring_free_dw - 1)) { 396254885Sdumbbell radeon_ring_free_size(rdev, ring); 397254885Sdumbbell if (ndw < ring->ring_free_dw) { 398254885Sdumbbell break; 399254885Sdumbbell } 400254885Sdumbbell r = radeon_fence_wait_next_locked(rdev, ring->idx); 401254885Sdumbbell if (r) 402254885Sdumbbell return r; 403254885Sdumbbell } 404254885Sdumbbell ring->count_dw = ndw; 405254885Sdumbbell ring->wptr_old = ring->wptr; 406254885Sdumbbell return 0; 407254885Sdumbbell} 408254885Sdumbbell 409254885Sdumbbell/** 410254885Sdumbbell * radeon_ring_lock - lock the ring and allocate space on it 411254885Sdumbbell * 412254885Sdumbbell * @rdev: radeon_device pointer 413254885Sdumbbell * @ring: radeon_ring structure holding ring information 414254885Sdumbbell * @ndw: number of dwords to allocate in the ring buffer 415254885Sdumbbell * 416254885Sdumbbell * Lock the ring and allocate @ndw dwords in the ring buffer 417254885Sdumbbell * (all asics). 418254885Sdumbbell * Returns 0 on success, error on failure. 419254885Sdumbbell */ 420254885Sdumbbellint radeon_ring_lock(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ndw) 421254885Sdumbbell{ 422254885Sdumbbell int r; 423254885Sdumbbell 424254885Sdumbbell sx_xlock(&rdev->ring_lock); 425254885Sdumbbell r = radeon_ring_alloc(rdev, ring, ndw); 426254885Sdumbbell if (r) { 427254885Sdumbbell sx_xunlock(&rdev->ring_lock); 428254885Sdumbbell return r; 429254885Sdumbbell } 430254885Sdumbbell return 0; 431254885Sdumbbell} 432254885Sdumbbell 433254885Sdumbbell/** 434254885Sdumbbell * radeon_ring_commit - tell the GPU to execute the new 435254885Sdumbbell * commands on the ring buffer 436254885Sdumbbell * 437254885Sdumbbell * @rdev: radeon_device pointer 438254885Sdumbbell * @ring: radeon_ring structure holding ring information 439254885Sdumbbell * 440254885Sdumbbell * Update the wptr (write pointer) to tell the GPU to 441254885Sdumbbell * execute new commands on the ring buffer (all asics). 442254885Sdumbbell */ 443254885Sdumbbellvoid radeon_ring_commit(struct radeon_device *rdev, struct radeon_ring *ring) 444254885Sdumbbell{ 445254885Sdumbbell /* We pad to match fetch size */ 446254885Sdumbbell while (ring->wptr & ring->align_mask) { 447254885Sdumbbell radeon_ring_write(ring, ring->nop); 448254885Sdumbbell } 449254885Sdumbbell DRM_MEMORYBARRIER(); 450254885Sdumbbell WREG32(ring->wptr_reg, (ring->wptr << ring->ptr_reg_shift) & ring->ptr_reg_mask); 451254885Sdumbbell (void)RREG32(ring->wptr_reg); 452254885Sdumbbell} 453254885Sdumbbell 454254885Sdumbbell/** 455254885Sdumbbell * radeon_ring_unlock_commit - tell the GPU to execute the new 456254885Sdumbbell * commands on the ring buffer and unlock it 457254885Sdumbbell * 458254885Sdumbbell * @rdev: radeon_device pointer 459254885Sdumbbell * @ring: radeon_ring structure holding ring information 460254885Sdumbbell * 461254885Sdumbbell * Call radeon_ring_commit() then unlock the ring (all asics). 462254885Sdumbbell */ 463254885Sdumbbellvoid radeon_ring_unlock_commit(struct radeon_device *rdev, struct radeon_ring *ring) 464254885Sdumbbell{ 465254885Sdumbbell radeon_ring_commit(rdev, ring); 466254885Sdumbbell sx_xunlock(&rdev->ring_lock); 467254885Sdumbbell} 468254885Sdumbbell 469254885Sdumbbell/** 470254885Sdumbbell * radeon_ring_undo - reset the wptr 471254885Sdumbbell * 472254885Sdumbbell * @ring: radeon_ring structure holding ring information 473254885Sdumbbell * 474254885Sdumbbell * Reset the driver's copy of the wptr (all asics). 475254885Sdumbbell */ 476254885Sdumbbellvoid radeon_ring_undo(struct radeon_ring *ring) 477254885Sdumbbell{ 478254885Sdumbbell ring->wptr = ring->wptr_old; 479254885Sdumbbell} 480254885Sdumbbell 481254885Sdumbbell/** 482254885Sdumbbell * radeon_ring_unlock_undo - reset the wptr and unlock the ring 483254885Sdumbbell * 484254885Sdumbbell * @ring: radeon_ring structure holding ring information 485254885Sdumbbell * 486254885Sdumbbell * Call radeon_ring_undo() then unlock the ring (all asics). 487254885Sdumbbell */ 488254885Sdumbbellvoid radeon_ring_unlock_undo(struct radeon_device *rdev, struct radeon_ring *ring) 489254885Sdumbbell{ 490254885Sdumbbell radeon_ring_undo(ring); 491254885Sdumbbell sx_xunlock(&rdev->ring_lock); 492254885Sdumbbell} 493254885Sdumbbell 494254885Sdumbbell/** 495254885Sdumbbell * radeon_ring_force_activity - add some nop packets to the ring 496254885Sdumbbell * 497254885Sdumbbell * @rdev: radeon_device pointer 498254885Sdumbbell * @ring: radeon_ring structure holding ring information 499254885Sdumbbell * 500254885Sdumbbell * Add some nop packets to the ring to force activity (all asics). 501254885Sdumbbell * Used for lockup detection to see if the rptr is advancing. 502254885Sdumbbell */ 503254885Sdumbbellvoid radeon_ring_force_activity(struct radeon_device *rdev, struct radeon_ring *ring) 504254885Sdumbbell{ 505254885Sdumbbell int r; 506254885Sdumbbell 507254885Sdumbbell radeon_ring_free_size(rdev, ring); 508254885Sdumbbell if (ring->rptr == ring->wptr) { 509254885Sdumbbell r = radeon_ring_alloc(rdev, ring, 1); 510254885Sdumbbell if (!r) { 511254885Sdumbbell radeon_ring_write(ring, ring->nop); 512254885Sdumbbell radeon_ring_commit(rdev, ring); 513254885Sdumbbell } 514254885Sdumbbell } 515254885Sdumbbell} 516254885Sdumbbell 517254885Sdumbbell/** 518254885Sdumbbell * radeon_ring_lockup_update - update lockup variables 519254885Sdumbbell * 520254885Sdumbbell * @ring: radeon_ring structure holding ring information 521254885Sdumbbell * 522254885Sdumbbell * Update the last rptr value and timestamp (all asics). 523254885Sdumbbell */ 524254885Sdumbbellvoid radeon_ring_lockup_update(struct radeon_ring *ring) 525254885Sdumbbell{ 526254885Sdumbbell ring->last_rptr = ring->rptr; 527254885Sdumbbell ring->last_activity = jiffies; 528254885Sdumbbell} 529254885Sdumbbell 530254885Sdumbbell/** 531254885Sdumbbell * radeon_ring_test_lockup() - check if ring is lockedup by recording information 532254885Sdumbbell * @rdev: radeon device structure 533254885Sdumbbell * @ring: radeon_ring structure holding ring information 534254885Sdumbbell * 535254885Sdumbbell * We don't need to initialize the lockup tracking information as we will either 536254885Sdumbbell * have CP rptr to a different value of jiffies wrap around which will force 537254885Sdumbbell * initialization of the lockup tracking informations. 538254885Sdumbbell * 539254885Sdumbbell * A possible false positivie is if we get call after while and last_cp_rptr == 540254885Sdumbbell * the current CP rptr, even if it's unlikely it might happen. To avoid this 541254885Sdumbbell * if the elapsed time since last call is bigger than 2 second than we return 542254885Sdumbbell * false and update the tracking information. Due to this the caller must call 543254885Sdumbbell * radeon_ring_test_lockup several time in less than 2sec for lockup to be reported 544254885Sdumbbell * the fencing code should be cautious about that. 545254885Sdumbbell * 546254885Sdumbbell * Caller should write to the ring to force CP to do something so we don't get 547254885Sdumbbell * false positive when CP is just gived nothing to do. 548254885Sdumbbell * 549254885Sdumbbell **/ 550254885Sdumbbellbool radeon_ring_test_lockup(struct radeon_device *rdev, struct radeon_ring *ring) 551254885Sdumbbell{ 552254885Sdumbbell unsigned long cjiffies, elapsed; 553254885Sdumbbell uint32_t rptr; 554254885Sdumbbell 555254885Sdumbbell cjiffies = jiffies; 556254885Sdumbbell if (!time_after(cjiffies, ring->last_activity)) { 557254885Sdumbbell /* likely a wrap around */ 558254885Sdumbbell radeon_ring_lockup_update(ring); 559254885Sdumbbell return false; 560254885Sdumbbell } 561254885Sdumbbell rptr = RREG32(ring->rptr_reg); 562254885Sdumbbell ring->rptr = (rptr & ring->ptr_reg_mask) >> ring->ptr_reg_shift; 563254885Sdumbbell if (ring->rptr != ring->last_rptr) { 564254885Sdumbbell /* CP is still working no lockup */ 565254885Sdumbbell radeon_ring_lockup_update(ring); 566254885Sdumbbell return false; 567254885Sdumbbell } 568254885Sdumbbell elapsed = jiffies_to_msecs(cjiffies - ring->last_activity); 569254885Sdumbbell if (radeon_lockup_timeout && elapsed >= radeon_lockup_timeout) { 570254885Sdumbbell dev_err(rdev->dev, "GPU lockup CP stall for more than %lumsec\n", elapsed); 571254885Sdumbbell return true; 572254885Sdumbbell } 573254885Sdumbbell /* give a chance to the GPU ... */ 574254885Sdumbbell return false; 575254885Sdumbbell} 576254885Sdumbbell 577254885Sdumbbell/** 578254885Sdumbbell * radeon_ring_backup - Back up the content of a ring 579254885Sdumbbell * 580254885Sdumbbell * @rdev: radeon_device pointer 581254885Sdumbbell * @ring: the ring we want to back up 582254885Sdumbbell * 583254885Sdumbbell * Saves all unprocessed commits from a ring, returns the number of dwords saved. 584254885Sdumbbell */ 585254885Sdumbbellunsigned radeon_ring_backup(struct radeon_device *rdev, struct radeon_ring *ring, 586254885Sdumbbell uint32_t **data) 587254885Sdumbbell{ 588254885Sdumbbell unsigned size, ptr, i; 589254885Sdumbbell 590254885Sdumbbell /* just in case lock the ring */ 591254885Sdumbbell sx_xlock(&rdev->ring_lock); 592254885Sdumbbell *data = NULL; 593254885Sdumbbell 594254885Sdumbbell if (ring->ring_obj == NULL) { 595254885Sdumbbell sx_xunlock(&rdev->ring_lock); 596254885Sdumbbell return 0; 597254885Sdumbbell } 598254885Sdumbbell 599254885Sdumbbell /* it doesn't make sense to save anything if all fences are signaled */ 600254885Sdumbbell if (!radeon_fence_count_emitted(rdev, ring->idx)) { 601254885Sdumbbell sx_xunlock(&rdev->ring_lock); 602254885Sdumbbell return 0; 603254885Sdumbbell } 604254885Sdumbbell 605254885Sdumbbell /* calculate the number of dw on the ring */ 606254885Sdumbbell if (ring->rptr_save_reg) 607254885Sdumbbell ptr = RREG32(ring->rptr_save_reg); 608254885Sdumbbell else if (rdev->wb.enabled) 609254885Sdumbbell ptr = le32_to_cpu(*ring->next_rptr_cpu_addr); 610254885Sdumbbell else { 611254885Sdumbbell /* no way to read back the next rptr */ 612254885Sdumbbell sx_xunlock(&rdev->ring_lock); 613254885Sdumbbell return 0; 614254885Sdumbbell } 615254885Sdumbbell 616254885Sdumbbell size = ring->wptr + (ring->ring_size / 4); 617254885Sdumbbell size -= ptr; 618254885Sdumbbell size &= ring->ptr_mask; 619254885Sdumbbell if (size == 0) { 620254885Sdumbbell sx_xunlock(&rdev->ring_lock); 621254885Sdumbbell return 0; 622254885Sdumbbell } 623254885Sdumbbell 624254885Sdumbbell /* and then save the content of the ring */ 625282199Sdumbbell *data = malloc(size * sizeof(uint32_t), DRM_MEM_DRIVER, M_NOWAIT); 626254885Sdumbbell if (!*data) { 627254885Sdumbbell sx_xunlock(&rdev->ring_lock); 628254885Sdumbbell return 0; 629254885Sdumbbell } 630254885Sdumbbell for (i = 0; i < size; ++i) { 631254885Sdumbbell (*data)[i] = ring->ring[ptr++]; 632254885Sdumbbell ptr &= ring->ptr_mask; 633254885Sdumbbell } 634254885Sdumbbell 635254885Sdumbbell sx_xunlock(&rdev->ring_lock); 636254885Sdumbbell return size; 637254885Sdumbbell} 638254885Sdumbbell 639254885Sdumbbell/** 640254885Sdumbbell * radeon_ring_restore - append saved commands to the ring again 641254885Sdumbbell * 642254885Sdumbbell * @rdev: radeon_device pointer 643254885Sdumbbell * @ring: ring to append commands to 644254885Sdumbbell * @size: number of dwords we want to write 645254885Sdumbbell * @data: saved commands 646254885Sdumbbell * 647254885Sdumbbell * Allocates space on the ring and restore the previously saved commands. 648254885Sdumbbell */ 649254885Sdumbbellint radeon_ring_restore(struct radeon_device *rdev, struct radeon_ring *ring, 650254885Sdumbbell unsigned size, uint32_t *data) 651254885Sdumbbell{ 652254885Sdumbbell int i, r; 653254885Sdumbbell 654254885Sdumbbell if (!size || !data) 655254885Sdumbbell return 0; 656254885Sdumbbell 657254885Sdumbbell /* restore the saved ring content */ 658254885Sdumbbell r = radeon_ring_lock(rdev, ring, size); 659254885Sdumbbell if (r) 660254885Sdumbbell return r; 661254885Sdumbbell 662254885Sdumbbell for (i = 0; i < size; ++i) { 663254885Sdumbbell radeon_ring_write(ring, data[i]); 664254885Sdumbbell } 665254885Sdumbbell 666254885Sdumbbell radeon_ring_unlock_commit(rdev, ring); 667254885Sdumbbell free(data, DRM_MEM_DRIVER); 668254885Sdumbbell return 0; 669254885Sdumbbell} 670254885Sdumbbell 671254885Sdumbbell/** 672254885Sdumbbell * radeon_ring_init - init driver ring struct. 673254885Sdumbbell * 674254885Sdumbbell * @rdev: radeon_device pointer 675254885Sdumbbell * @ring: radeon_ring structure holding ring information 676254885Sdumbbell * @ring_size: size of the ring 677254885Sdumbbell * @rptr_offs: offset of the rptr writeback location in the WB buffer 678254885Sdumbbell * @rptr_reg: MMIO offset of the rptr register 679254885Sdumbbell * @wptr_reg: MMIO offset of the wptr register 680254885Sdumbbell * @ptr_reg_shift: bit offset of the rptr/wptr values 681254885Sdumbbell * @ptr_reg_mask: bit mask of the rptr/wptr values 682254885Sdumbbell * @nop: nop packet for this ring 683254885Sdumbbell * 684254885Sdumbbell * Initialize the driver information for the selected ring (all asics). 685254885Sdumbbell * Returns 0 on success, error on failure. 686254885Sdumbbell */ 687254885Sdumbbellint radeon_ring_init(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ring_size, 688254885Sdumbbell unsigned rptr_offs, unsigned rptr_reg, unsigned wptr_reg, 689254885Sdumbbell u32 ptr_reg_shift, u32 ptr_reg_mask, u32 nop) 690254885Sdumbbell{ 691254885Sdumbbell int r; 692282199Sdumbbell void *ring_ptr; /* FreeBSD: to please GCC 4.2. */ 693254885Sdumbbell 694254885Sdumbbell ring->ring_size = ring_size; 695254885Sdumbbell ring->rptr_offs = rptr_offs; 696254885Sdumbbell ring->rptr_reg = rptr_reg; 697254885Sdumbbell ring->wptr_reg = wptr_reg; 698254885Sdumbbell ring->ptr_reg_shift = ptr_reg_shift; 699254885Sdumbbell ring->ptr_reg_mask = ptr_reg_mask; 700254885Sdumbbell ring->nop = nop; 701254885Sdumbbell /* Allocate ring buffer */ 702254885Sdumbbell if (ring->ring_obj == NULL) { 703254885Sdumbbell r = radeon_bo_create(rdev, ring->ring_size, PAGE_SIZE, true, 704254885Sdumbbell RADEON_GEM_DOMAIN_GTT, 705254885Sdumbbell NULL, &ring->ring_obj); 706254885Sdumbbell if (r) { 707254885Sdumbbell dev_err(rdev->dev, "(%d) ring create failed\n", r); 708254885Sdumbbell return r; 709254885Sdumbbell } 710254885Sdumbbell r = radeon_bo_reserve(ring->ring_obj, false); 711254885Sdumbbell if (unlikely(r != 0)) { 712254885Sdumbbell radeon_bo_unref(&ring->ring_obj); 713254885Sdumbbell return r; 714254885Sdumbbell } 715254885Sdumbbell r = radeon_bo_pin(ring->ring_obj, RADEON_GEM_DOMAIN_GTT, 716254885Sdumbbell &ring->gpu_addr); 717254885Sdumbbell if (r) { 718254885Sdumbbell radeon_bo_unreserve(ring->ring_obj); 719254885Sdumbbell radeon_bo_unref(&ring->ring_obj); 720254885Sdumbbell dev_err(rdev->dev, "(%d) ring pin failed\n", r); 721254885Sdumbbell return r; 722254885Sdumbbell } 723254885Sdumbbell ring_ptr = &ring->ring; 724254885Sdumbbell r = radeon_bo_kmap(ring->ring_obj, 725254885Sdumbbell ring_ptr); 726254885Sdumbbell radeon_bo_unreserve(ring->ring_obj); 727254885Sdumbbell if (r) { 728254885Sdumbbell dev_err(rdev->dev, "(%d) ring map failed\n", r); 729254885Sdumbbell radeon_bo_unref(&ring->ring_obj); 730254885Sdumbbell return r; 731254885Sdumbbell } 732254885Sdumbbell } 733254885Sdumbbell ring->ptr_mask = (ring->ring_size / 4) - 1; 734254885Sdumbbell ring->ring_free_dw = ring->ring_size / 4; 735254885Sdumbbell if (rdev->wb.enabled) { 736254885Sdumbbell u32 index = RADEON_WB_RING0_NEXT_RPTR + (ring->idx * 4); 737254885Sdumbbell ring->next_rptr_gpu_addr = rdev->wb.gpu_addr + index; 738254885Sdumbbell ring->next_rptr_cpu_addr = &rdev->wb.wb[index/4]; 739254885Sdumbbell } 740282199Sdumbbell#ifdef FREEBSD_WIP 741254885Sdumbbell if (radeon_debugfs_ring_init(rdev, ring)) { 742254885Sdumbbell DRM_ERROR("Failed to register debugfs file for rings !\n"); 743254885Sdumbbell } 744282199Sdumbbell#endif /* FREEBSD_WIP */ 745254885Sdumbbell radeon_ring_lockup_update(ring); 746254885Sdumbbell return 0; 747254885Sdumbbell} 748254885Sdumbbell 749254885Sdumbbell/** 750254885Sdumbbell * radeon_ring_fini - tear down the driver ring struct. 751254885Sdumbbell * 752254885Sdumbbell * @rdev: radeon_device pointer 753254885Sdumbbell * @ring: radeon_ring structure holding ring information 754254885Sdumbbell * 755254885Sdumbbell * Tear down the driver information for the selected ring (all asics). 756254885Sdumbbell */ 757254885Sdumbbellvoid radeon_ring_fini(struct radeon_device *rdev, struct radeon_ring *ring) 758254885Sdumbbell{ 759254885Sdumbbell int r; 760254885Sdumbbell struct radeon_bo *ring_obj; 761254885Sdumbbell 762254885Sdumbbell sx_xlock(&rdev->ring_lock); 763254885Sdumbbell ring_obj = ring->ring_obj; 764254885Sdumbbell ring->ready = false; 765254885Sdumbbell ring->ring = NULL; 766254885Sdumbbell ring->ring_obj = NULL; 767254885Sdumbbell sx_xunlock(&rdev->ring_lock); 768254885Sdumbbell 769254885Sdumbbell if (ring_obj) { 770254885Sdumbbell r = radeon_bo_reserve(ring_obj, false); 771254885Sdumbbell if (likely(r == 0)) { 772254885Sdumbbell radeon_bo_kunmap(ring_obj); 773254885Sdumbbell radeon_bo_unpin(ring_obj); 774254885Sdumbbell radeon_bo_unreserve(ring_obj); 775254885Sdumbbell } 776254885Sdumbbell radeon_bo_unref(&ring_obj); 777254885Sdumbbell } 778254885Sdumbbell} 779254885Sdumbbell 780254885Sdumbbell/* 781254885Sdumbbell * Debugfs info 782254885Sdumbbell */ 783254885Sdumbbell#if defined(CONFIG_DEBUG_FS) 784254885Sdumbbell 785254885Sdumbbellstatic int radeon_debugfs_ring_info(struct seq_file *m, void *data) 786254885Sdumbbell{ 787254885Sdumbbell struct drm_info_node *node = (struct drm_info_node *) m->private; 788254885Sdumbbell struct drm_device *dev = node->minor->dev; 789254885Sdumbbell struct radeon_device *rdev = dev->dev_private; 790254885Sdumbbell int ridx = *(int*)node->info_ent->data; 791254885Sdumbbell struct radeon_ring *ring = &rdev->ring[ridx]; 792254885Sdumbbell unsigned count, i, j; 793254885Sdumbbell u32 tmp; 794254885Sdumbbell 795254885Sdumbbell radeon_ring_free_size(rdev, ring); 796254885Sdumbbell count = (ring->ring_size / 4) - ring->ring_free_dw; 797254885Sdumbbell tmp = RREG32(ring->wptr_reg) >> ring->ptr_reg_shift; 798254885Sdumbbell seq_printf(m, "wptr(0x%04x): 0x%08x [%5d]\n", ring->wptr_reg, tmp, tmp); 799254885Sdumbbell tmp = RREG32(ring->rptr_reg) >> ring->ptr_reg_shift; 800254885Sdumbbell seq_printf(m, "rptr(0x%04x): 0x%08x [%5d]\n", ring->rptr_reg, tmp, tmp); 801254885Sdumbbell if (ring->rptr_save_reg) { 802254885Sdumbbell seq_printf(m, "rptr next(0x%04x): 0x%08x\n", ring->rptr_save_reg, 803254885Sdumbbell RREG32(ring->rptr_save_reg)); 804254885Sdumbbell } 805254885Sdumbbell seq_printf(m, "driver's copy of the wptr: 0x%08x [%5d]\n", ring->wptr, ring->wptr); 806254885Sdumbbell seq_printf(m, "driver's copy of the rptr: 0x%08x [%5d]\n", ring->rptr, ring->rptr); 807254885Sdumbbell seq_printf(m, "last semaphore signal addr : 0x%016llx\n", ring->last_semaphore_signal_addr); 808254885Sdumbbell seq_printf(m, "last semaphore wait addr : 0x%016llx\n", ring->last_semaphore_wait_addr); 809254885Sdumbbell seq_printf(m, "%u free dwords in ring\n", ring->ring_free_dw); 810254885Sdumbbell seq_printf(m, "%u dwords in ring\n", count); 811254885Sdumbbell /* print 8 dw before current rptr as often it's the last executed 812254885Sdumbbell * packet that is the root issue 813254885Sdumbbell */ 814254885Sdumbbell i = (ring->rptr + ring->ptr_mask + 1 - 32) & ring->ptr_mask; 815254885Sdumbbell for (j = 0; j <= (count + 32); j++) { 816254885Sdumbbell seq_printf(m, "r[%5d]=0x%08x\n", i, ring->ring[i]); 817254885Sdumbbell i = (i + 1) & ring->ptr_mask; 818254885Sdumbbell } 819254885Sdumbbell return 0; 820254885Sdumbbell} 821254885Sdumbbell 822254885Sdumbbellstatic int radeon_ring_type_gfx_index = RADEON_RING_TYPE_GFX_INDEX; 823254885Sdumbbellstatic int cayman_ring_type_cp1_index = CAYMAN_RING_TYPE_CP1_INDEX; 824254885Sdumbbellstatic int cayman_ring_type_cp2_index = CAYMAN_RING_TYPE_CP2_INDEX; 825254885Sdumbbellstatic int radeon_ring_type_dma1_index = R600_RING_TYPE_DMA_INDEX; 826254885Sdumbbellstatic int radeon_ring_type_dma2_index = CAYMAN_RING_TYPE_DMA1_INDEX; 827254885Sdumbbell 828254885Sdumbbellstatic struct drm_info_list radeon_debugfs_ring_info_list[] = { 829254885Sdumbbell {"radeon_ring_gfx", radeon_debugfs_ring_info, 0, &radeon_ring_type_gfx_index}, 830254885Sdumbbell {"radeon_ring_cp1", radeon_debugfs_ring_info, 0, &cayman_ring_type_cp1_index}, 831254885Sdumbbell {"radeon_ring_cp2", radeon_debugfs_ring_info, 0, &cayman_ring_type_cp2_index}, 832254885Sdumbbell {"radeon_ring_dma1", radeon_debugfs_ring_info, 0, &radeon_ring_type_dma1_index}, 833254885Sdumbbell {"radeon_ring_dma2", radeon_debugfs_ring_info, 0, &radeon_ring_type_dma2_index}, 834254885Sdumbbell}; 835254885Sdumbbell 836254885Sdumbbellstatic int radeon_debugfs_sa_info(struct seq_file *m, void *data) 837254885Sdumbbell{ 838254885Sdumbbell struct drm_info_node *node = (struct drm_info_node *) m->private; 839254885Sdumbbell struct drm_device *dev = node->minor->dev; 840254885Sdumbbell struct radeon_device *rdev = dev->dev_private; 841254885Sdumbbell 842254885Sdumbbell radeon_sa_bo_dump_debug_info(&rdev->ring_tmp_bo, m); 843254885Sdumbbell 844254885Sdumbbell return 0; 845254885Sdumbbell 846254885Sdumbbell} 847254885Sdumbbell 848254885Sdumbbellstatic struct drm_info_list radeon_debugfs_sa_list[] = { 849254885Sdumbbell {"radeon_sa_info", &radeon_debugfs_sa_info, 0, NULL}, 850254885Sdumbbell}; 851254885Sdumbbell 852254885Sdumbbell#endif 853254885Sdumbbell 854282199Sdumbbell#ifdef FREEBSD_WIP 855254885Sdumbbellstatic int radeon_debugfs_ring_init(struct radeon_device *rdev, struct radeon_ring *ring) 856254885Sdumbbell{ 857254885Sdumbbell#if defined(CONFIG_DEBUG_FS) 858254885Sdumbbell unsigned i; 859254885Sdumbbell for (i = 0; i < ARRAY_SIZE(radeon_debugfs_ring_info_list); ++i) { 860254885Sdumbbell struct drm_info_list *info = &radeon_debugfs_ring_info_list[i]; 861254885Sdumbbell int ridx = *(int*)radeon_debugfs_ring_info_list[i].data; 862254885Sdumbbell unsigned r; 863254885Sdumbbell 864254885Sdumbbell if (&rdev->ring[ridx] != ring) 865254885Sdumbbell continue; 866254885Sdumbbell 867254885Sdumbbell r = radeon_debugfs_add_files(rdev, info, 1); 868254885Sdumbbell if (r) 869254885Sdumbbell return r; 870254885Sdumbbell } 871254885Sdumbbell#endif 872254885Sdumbbell return 0; 873254885Sdumbbell} 874254885Sdumbbell 875254885Sdumbbellstatic int radeon_debugfs_sa_init(struct radeon_device *rdev) 876254885Sdumbbell{ 877254885Sdumbbell#if defined(CONFIG_DEBUG_FS) 878254885Sdumbbell return radeon_debugfs_add_files(rdev, radeon_debugfs_sa_list, 1); 879254885Sdumbbell#else 880254885Sdumbbell return 0; 881254885Sdumbbell#endif 882254885Sdumbbell} 883282199Sdumbbell#endif /* FREEBSD_WIP */ 884