2 * Copyright 2008 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 * Copyright 2009 Jerome Glisse.
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
24 * Authors: Dave Airlie
29 #include <linux/seq_file.h>
30 #include <linux/slab.h>
32 #include <drm/radeon_drm.h>
33 #include "radeon_reg.h"
39 * IBs (Indirect Buffers) and areas of GPU accessible memory where
40 * commands are stored. You can put a pointer to the IB in the
41 * command ring and the hw will fetch the commands from the IB
42 * and execute them. Generally userspace acceleration drivers
43 * produce command buffers which are send to the kernel and
44 * put in IBs for execution by the requested ring.
46 static int radeon_debugfs_sa_init(struct radeon_device *rdev);
49 * radeon_ib_get - request an IB (Indirect Buffer)
51 * @rdev: radeon_device pointer
52 * @ring: ring index the IB is associated with
53 * @ib: IB object returned
54 * @size: requested IB size
56 * Request an IB (all asics). IBs are allocated using the
58 * Returns 0 on success, error on failure.
60 int radeon_ib_get(struct radeon_device *rdev, int ring,
61 struct radeon_ib *ib, struct radeon_vm *vm,
66 r = radeon_sa_bo_new(rdev, &rdev->ring_tmp_bo, &ib->sa_bo, size, 256, true);
68 dev_err(rdev->dev, "failed to get a new IB (%d)\n", r);
72 r = radeon_semaphore_create(rdev, &ib->semaphore);
79 ib->ptr = radeon_sa_bo_cpu_addr(ib->sa_bo);
82 /* ib pool is bound at RADEON_VA_IB_OFFSET in virtual address
83 * space and soffset is the offset inside the pool bo
85 ib->gpu_addr = ib->sa_bo->soffset + RADEON_VA_IB_OFFSET;
87 ib->gpu_addr = radeon_sa_bo_gpu_addr(ib->sa_bo);
89 ib->is_const_ib = false;
90 for (i = 0; i < RADEON_NUM_RINGS; ++i)
91 ib->sync_to[i] = NULL;
97 * radeon_ib_free - free an IB (Indirect Buffer)
99 * @rdev: radeon_device pointer
100 * @ib: IB object to free
102 * Free an IB (all asics).
104 void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib *ib)
106 radeon_semaphore_free(rdev, &ib->semaphore, ib->fence);
107 radeon_sa_bo_free(rdev, &ib->sa_bo, ib->fence);
108 radeon_fence_unref(&ib->fence);
112 * radeon_ib_schedule - schedule an IB (Indirect Buffer) on the ring
114 * @rdev: radeon_device pointer
115 * @ib: IB object to schedule
116 * @const_ib: Const IB to schedule (SI only)
118 * Schedule an IB on the associated ring (all asics).
119 * Returns 0 on success, error on failure.
121 * On SI, there are two parallel engines fed from the primary ring,
122 * the CE (Constant Engine) and the DE (Drawing Engine). Since
123 * resource descriptors have moved to memory, the CE allows you to
124 * prime the caches while the DE is updating register state so that
125 * the resource descriptors will be already in cache when the draw is
126 * processed. To accomplish this, the userspace driver submits two
127 * IBs, one for the CE and one for the DE. If there is a CE IB (called
128 * a CONST_IB), it will be put on the ring prior to the DE IB. Prior
129 * to SI there was just a DE IB.
131 int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib,
132 struct radeon_ib *const_ib)
134 struct radeon_ring *ring = &rdev->ring[ib->ring];
135 bool need_sync = false;
138 if (!ib->length_dw || !ring->ready) {
139 /* TODO: Nothings in the ib we should report. */
140 dev_err(rdev->dev, "couldn't schedule ib\n");
144 /* 64 dwords should be enough for fence too */
145 r = radeon_ring_lock(rdev, ring, 64 + RADEON_NUM_RINGS * 8);
147 dev_err(rdev->dev, "scheduling IB failed (%d).\n", r);
150 for (i = 0; i < RADEON_NUM_RINGS; ++i) {
151 struct radeon_fence *fence = ib->sync_to[i];
152 if (radeon_fence_need_sync(fence, ib->ring)) {
154 radeon_semaphore_sync_rings(rdev, ib->semaphore,
155 fence->ring, ib->ring);
156 radeon_fence_note_sync(fence, ib->ring);
159 /* immediately free semaphore when we don't need to sync */
161 radeon_semaphore_free(rdev, &ib->semaphore, NULL);
163 /* if we can't remember our last VM flush then flush now! */
164 if (ib->vm && !ib->vm->last_flush) {
165 radeon_ring_vm_flush(rdev, ib->ring, ib->vm);
168 radeon_ring_ib_execute(rdev, const_ib->ring, const_ib);
169 radeon_semaphore_free(rdev, &const_ib->semaphore, NULL);
171 radeon_ring_ib_execute(rdev, ib->ring, ib);
172 r = radeon_fence_emit(rdev, &ib->fence, ib->ring);
174 dev_err(rdev->dev, "failed to emit fence for new IB (%d)\n", r);
175 radeon_ring_unlock_undo(rdev, ring);
179 const_ib->fence = radeon_fence_ref(ib->fence);
181 /* we just flushed the VM, remember that */
182 if (ib->vm && !ib->vm->last_flush) {
183 ib->vm->last_flush = radeon_fence_ref(ib->fence);
185 radeon_ring_unlock_commit(rdev, ring);
190 * radeon_ib_pool_init - Init the IB (Indirect Buffer) pool
192 * @rdev: radeon_device pointer
194 * Initialize the suballocator to manage a pool of memory
195 * for use as IBs (all asics).
196 * Returns 0 on success, error on failure.
198 int radeon_ib_pool_init(struct radeon_device *rdev)
202 if (rdev->ib_pool_ready) {
205 r = radeon_sa_bo_manager_init(rdev, &rdev->ring_tmp_bo,
206 RADEON_IB_POOL_SIZE*64*1024,
207 RADEON_GEM_DOMAIN_GTT);
212 r = radeon_sa_bo_manager_start(rdev, &rdev->ring_tmp_bo);
217 rdev->ib_pool_ready = true;
218 if (radeon_debugfs_sa_init(rdev)) {
219 dev_err(rdev->dev, "failed to register debugfs file for SA\n");
225 * radeon_ib_pool_fini - Free the IB (Indirect Buffer) pool
227 * @rdev: radeon_device pointer
229 * Tear down the suballocator managing the pool of memory
230 * for use as IBs (all asics).
232 void radeon_ib_pool_fini(struct radeon_device *rdev)
234 if (rdev->ib_pool_ready) {
235 radeon_sa_bo_manager_suspend(rdev, &rdev->ring_tmp_bo);
236 radeon_sa_bo_manager_fini(rdev, &rdev->ring_tmp_bo);
237 rdev->ib_pool_ready = false;
242 * radeon_ib_ring_tests - test IBs on the rings
244 * @rdev: radeon_device pointer
246 * Test an IB (Indirect Buffer) on each ring.
247 * If the test fails, disable the ring.
248 * Returns 0 on success, error if the primary GFX ring
251 int radeon_ib_ring_tests(struct radeon_device *rdev)
256 for (i = 0; i < RADEON_NUM_RINGS; ++i) {
257 struct radeon_ring *ring = &rdev->ring[i];
262 r = radeon_ib_test(rdev, i, ring);
266 if (i == RADEON_RING_TYPE_GFX_INDEX) {
267 /* oh, oh, that's really bad */
268 DRM_ERROR("radeon: failed testing IB on GFX ring (%d).\n", r);
269 rdev->accel_working = false;
273 /* still not good, but we can live with it */
274 DRM_ERROR("radeon: failed testing IB on ring %d (%d).\n", i, r);
283 * Most engines on the GPU are fed via ring buffers. Ring
284 * buffers are areas of GPU accessible memory that the host
285 * writes commands into and the GPU reads commands out of.
286 * There is a rptr (read pointer) that determines where the
287 * GPU is currently reading, and a wptr (write pointer)
288 * which determines where the host has written. When the
289 * pointers are equal, the ring is idle. When the host
290 * writes commands to the ring buffer, it increments the
291 * wptr. The GPU then starts fetching commands and executes
292 * them until the pointers are equal again.
294 static int radeon_debugfs_ring_init(struct radeon_device *rdev, struct radeon_ring *ring);
297 * radeon_ring_write - write a value to the ring
299 * @ring: radeon_ring structure holding ring information
300 * @v: dword (dw) value to write
302 * Write a value to the requested ring buffer (all asics).
304 void radeon_ring_write(struct radeon_ring *ring, uint32_t v)
307 if (ring->count_dw <= 0) {
308 DRM_ERROR("radeon: writting more dword to ring than expected !\n");
311 ring->ring[ring->wptr++] = v;
312 ring->wptr &= ring->ptr_mask;
314 ring->ring_free_dw--;
318 * radeon_ring_supports_scratch_reg - check if the ring supports
319 * writing to scratch registers
321 * @rdev: radeon_device pointer
322 * @ring: radeon_ring structure holding ring information
324 * Check if a specific ring supports writing to scratch registers (all asics).
325 * Returns true if the ring supports writing to scratch regs, false if not.
327 bool radeon_ring_supports_scratch_reg(struct radeon_device *rdev,
328 struct radeon_ring *ring)
331 case RADEON_RING_TYPE_GFX_INDEX:
332 case CAYMAN_RING_TYPE_CP1_INDEX:
333 case CAYMAN_RING_TYPE_CP2_INDEX:
341 * radeon_ring_free_size - update the free size
343 * @rdev: radeon_device pointer
344 * @ring: radeon_ring structure holding ring information
346 * Update the free dw slots in the ring buffer (all asics).
348 void radeon_ring_free_size(struct radeon_device *rdev, struct radeon_ring *ring)
352 if (rdev->wb.enabled)
353 rptr = le32_to_cpu(rdev->wb.wb[ring->rptr_offs/4]);
355 rptr = RREG32(ring->rptr_reg);
356 ring->rptr = (rptr & ring->ptr_reg_mask) >> ring->ptr_reg_shift;
357 /* This works because ring_size is a power of 2 */
358 ring->ring_free_dw = (ring->rptr + (ring->ring_size / 4));
359 ring->ring_free_dw -= ring->wptr;
360 ring->ring_free_dw &= ring->ptr_mask;
361 if (!ring->ring_free_dw) {
362 ring->ring_free_dw = ring->ring_size / 4;
367 * radeon_ring_alloc - allocate space on the ring buffer
369 * @rdev: radeon_device pointer
370 * @ring: radeon_ring structure holding ring information
371 * @ndw: number of dwords to allocate in the ring buffer
373 * Allocate @ndw dwords in the ring buffer (all asics).
374 * Returns 0 on success, error on failure.
376 int radeon_ring_alloc(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ndw)
380 /* Align requested size with padding so unlock_commit can
382 ndw = (ndw + ring->align_mask) & ~ring->align_mask;
383 while (ndw > (ring->ring_free_dw - 1)) {
384 radeon_ring_free_size(rdev, ring);
385 if (ndw < ring->ring_free_dw) {
388 r = radeon_fence_wait_next_locked(rdev, ring->idx);
392 ring->count_dw = ndw;
393 ring->wptr_old = ring->wptr;
398 * radeon_ring_lock - lock the ring and allocate space on it
400 * @rdev: radeon_device pointer
401 * @ring: radeon_ring structure holding ring information
402 * @ndw: number of dwords to allocate in the ring buffer
404 * Lock the ring and allocate @ndw dwords in the ring buffer
406 * Returns 0 on success, error on failure.
408 int radeon_ring_lock(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ndw)
412 mutex_lock(&rdev->ring_lock);
413 r = radeon_ring_alloc(rdev, ring, ndw);
415 mutex_unlock(&rdev->ring_lock);
422 * radeon_ring_commit - tell the GPU to execute the new
423 * commands on the ring buffer
425 * @rdev: radeon_device pointer
426 * @ring: radeon_ring structure holding ring information
428 * Update the wptr (write pointer) to tell the GPU to
429 * execute new commands on the ring buffer (all asics).
431 void radeon_ring_commit(struct radeon_device *rdev, struct radeon_ring *ring)
433 /* We pad to match fetch size */
434 while (ring->wptr & ring->align_mask) {
435 radeon_ring_write(ring, ring->nop);
438 WREG32(ring->wptr_reg, (ring->wptr << ring->ptr_reg_shift) & ring->ptr_reg_mask);
439 (void)RREG32(ring->wptr_reg);
443 * radeon_ring_unlock_commit - tell the GPU to execute the new
444 * commands on the ring buffer and unlock it
446 * @rdev: radeon_device pointer
447 * @ring: radeon_ring structure holding ring information
449 * Call radeon_ring_commit() then unlock the ring (all asics).
451 void radeon_ring_unlock_commit(struct radeon_device *rdev, struct radeon_ring *ring)
453 radeon_ring_commit(rdev, ring);
454 mutex_unlock(&rdev->ring_lock);
458 * radeon_ring_undo - reset the wptr
460 * @ring: radeon_ring structure holding ring information
462 * Reset the driver's copy of the wtpr (all asics).
464 void radeon_ring_undo(struct radeon_ring *ring)
466 ring->wptr = ring->wptr_old;
470 * radeon_ring_unlock_undo - reset the wptr and unlock the ring
472 * @ring: radeon_ring structure holding ring information
474 * Call radeon_ring_undo() then unlock the ring (all asics).
476 void radeon_ring_unlock_undo(struct radeon_device *rdev, struct radeon_ring *ring)
478 radeon_ring_undo(ring);
479 mutex_unlock(&rdev->ring_lock);
483 * radeon_ring_force_activity - add some nop packets to the ring
485 * @rdev: radeon_device pointer
486 * @ring: radeon_ring structure holding ring information
488 * Add some nop packets to the ring to force activity (all asics).
489 * Used for lockup detection to see if the rptr is advancing.
491 void radeon_ring_force_activity(struct radeon_device *rdev, struct radeon_ring *ring)
495 radeon_ring_free_size(rdev, ring);
496 if (ring->rptr == ring->wptr) {
497 r = radeon_ring_alloc(rdev, ring, 1);
499 radeon_ring_write(ring, ring->nop);
500 radeon_ring_commit(rdev, ring);
506 * radeon_ring_force_activity - update lockup variables
508 * @ring: radeon_ring structure holding ring information
510 * Update the last rptr value and timestamp (all asics).
512 void radeon_ring_lockup_update(struct radeon_ring *ring)
514 ring->last_rptr = ring->rptr;
515 ring->last_activity = jiffies;
519 * radeon_ring_test_lockup() - check if ring is lockedup by recording information
520 * @rdev: radeon device structure
521 * @ring: radeon_ring structure holding ring information
523 * We don't need to initialize the lockup tracking information as we will either
524 * have CP rptr to a different value of jiffies wrap around which will force
525 * initialization of the lockup tracking informations.
527 * A possible false positivie is if we get call after while and last_cp_rptr ==
528 * the current CP rptr, even if it's unlikely it might happen. To avoid this
529 * if the elapsed time since last call is bigger than 2 second than we return
530 * false and update the tracking information. Due to this the caller must call
531 * radeon_ring_test_lockup several time in less than 2sec for lockup to be reported
532 * the fencing code should be cautious about that.
534 * Caller should write to the ring to force CP to do something so we don't get
535 * false positive when CP is just gived nothing to do.
538 bool radeon_ring_test_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
540 unsigned long cjiffies, elapsed;
544 if (!time_after(cjiffies, ring->last_activity)) {
545 /* likely a wrap around */
546 radeon_ring_lockup_update(ring);
549 rptr = RREG32(ring->rptr_reg);
550 ring->rptr = (rptr & ring->ptr_reg_mask) >> ring->ptr_reg_shift;
551 if (ring->rptr != ring->last_rptr) {
552 /* CP is still working no lockup */
553 radeon_ring_lockup_update(ring);
556 elapsed = jiffies_to_msecs(cjiffies - ring->last_activity);
557 if (radeon_lockup_timeout && elapsed >= radeon_lockup_timeout) {
558 dev_err(rdev->dev, "GPU lockup CP stall for more than %lumsec\n", elapsed);
561 /* give a chance to the GPU ... */
566 * radeon_ring_backup - Back up the content of a ring
568 * @rdev: radeon_device pointer
569 * @ring: the ring we want to back up
571 * Saves all unprocessed commits from a ring, returns the number of dwords saved.
573 unsigned radeon_ring_backup(struct radeon_device *rdev, struct radeon_ring *ring,
576 unsigned size, ptr, i;
578 /* just in case lock the ring */
579 mutex_lock(&rdev->ring_lock);
582 if (ring->ring_obj == NULL) {
583 mutex_unlock(&rdev->ring_lock);
587 /* it doesn't make sense to save anything if all fences are signaled */
588 if (!radeon_fence_count_emitted(rdev, ring->idx)) {
589 mutex_unlock(&rdev->ring_lock);
593 /* calculate the number of dw on the ring */
594 if (ring->rptr_save_reg)
595 ptr = RREG32(ring->rptr_save_reg);
596 else if (rdev->wb.enabled)
597 ptr = le32_to_cpu(*ring->next_rptr_cpu_addr);
599 /* no way to read back the next rptr */
600 mutex_unlock(&rdev->ring_lock);
604 size = ring->wptr + (ring->ring_size / 4);
606 size &= ring->ptr_mask;
608 mutex_unlock(&rdev->ring_lock);
612 /* and then save the content of the ring */
613 *data = kmalloc_array(size, sizeof(uint32_t), GFP_KERNEL);
615 mutex_unlock(&rdev->ring_lock);
618 for (i = 0; i < size; ++i) {
619 (*data)[i] = ring->ring[ptr++];
620 ptr &= ring->ptr_mask;
623 mutex_unlock(&rdev->ring_lock);
628 * radeon_ring_restore - append saved commands to the ring again
630 * @rdev: radeon_device pointer
631 * @ring: ring to append commands to
632 * @size: number of dwords we want to write
633 * @data: saved commands
635 * Allocates space on the ring and restore the previously saved commands.
637 int radeon_ring_restore(struct radeon_device *rdev, struct radeon_ring *ring,
638 unsigned size, uint32_t *data)
645 /* restore the saved ring content */
646 r = radeon_ring_lock(rdev, ring, size);
650 for (i = 0; i < size; ++i) {
651 radeon_ring_write(ring, data[i]);
654 radeon_ring_unlock_commit(rdev, ring);
660 * radeon_ring_init - init driver ring struct.
662 * @rdev: radeon_device pointer
663 * @ring: radeon_ring structure holding ring information
664 * @ring_size: size of the ring
665 * @rptr_offs: offset of the rptr writeback location in the WB buffer
666 * @rptr_reg: MMIO offset of the rptr register
667 * @wptr_reg: MMIO offset of the wptr register
668 * @ptr_reg_shift: bit offset of the rptr/wptr values
669 * @ptr_reg_mask: bit mask of the rptr/wptr values
670 * @nop: nop packet for this ring
672 * Initialize the driver information for the selected ring (all asics).
673 * Returns 0 on success, error on failure.
675 int radeon_ring_init(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ring_size,
676 unsigned rptr_offs, unsigned rptr_reg, unsigned wptr_reg,
677 u32 ptr_reg_shift, u32 ptr_reg_mask, u32 nop)
681 ring->ring_size = ring_size;
682 ring->rptr_offs = rptr_offs;
683 ring->rptr_reg = rptr_reg;
684 ring->wptr_reg = wptr_reg;
685 ring->ptr_reg_shift = ptr_reg_shift;
686 ring->ptr_reg_mask = ptr_reg_mask;
688 /* Allocate ring buffer */
689 if (ring->ring_obj == NULL) {
690 r = radeon_bo_create(rdev, ring->ring_size, PAGE_SIZE, true,
691 RADEON_GEM_DOMAIN_GTT,
692 NULL, &ring->ring_obj);
694 dev_err(rdev->dev, "(%d) ring create failed\n", r);
697 r = radeon_bo_reserve(ring->ring_obj, false);
698 if (unlikely(r != 0))
700 r = radeon_bo_pin(ring->ring_obj, RADEON_GEM_DOMAIN_GTT,
703 radeon_bo_unreserve(ring->ring_obj);
704 dev_err(rdev->dev, "(%d) ring pin failed\n", r);
707 r = radeon_bo_kmap(ring->ring_obj,
708 (void **)&ring->ring);
709 radeon_bo_unreserve(ring->ring_obj);
711 dev_err(rdev->dev, "(%d) ring map failed\n", r);
715 ring->ptr_mask = (ring->ring_size / 4) - 1;
716 ring->ring_free_dw = ring->ring_size / 4;
717 if (rdev->wb.enabled) {
718 u32 index = RADEON_WB_RING0_NEXT_RPTR + (ring->idx * 4);
719 ring->next_rptr_gpu_addr = rdev->wb.gpu_addr + index;
720 ring->next_rptr_cpu_addr = &rdev->wb.wb[index/4];
722 if (radeon_debugfs_ring_init(rdev, ring)) {
723 DRM_ERROR("Failed to register debugfs file for rings !\n");
725 radeon_ring_lockup_update(ring);
730 * radeon_ring_fini - tear down the driver ring struct.
732 * @rdev: radeon_device pointer
733 * @ring: radeon_ring structure holding ring information
735 * Tear down the driver information for the selected ring (all asics).
737 void radeon_ring_fini(struct radeon_device *rdev, struct radeon_ring *ring)
740 struct radeon_bo *ring_obj;
742 mutex_lock(&rdev->ring_lock);
743 ring_obj = ring->ring_obj;
746 ring->ring_obj = NULL;
747 mutex_unlock(&rdev->ring_lock);
750 r = radeon_bo_reserve(ring_obj, false);
751 if (likely(r == 0)) {
752 radeon_bo_kunmap(ring_obj);
753 radeon_bo_unpin(ring_obj);
754 radeon_bo_unreserve(ring_obj);
756 radeon_bo_unref(&ring_obj);
763 #if defined(CONFIG_DEBUG_FS)
765 static int radeon_debugfs_ring_info(struct seq_file *m, void *data)
767 struct drm_info_node *node = (struct drm_info_node *) m->private;
768 struct drm_device *dev = node->minor->dev;
769 struct radeon_device *rdev = dev->dev_private;
770 int ridx = *(int*)node->info_ent->data;
771 struct radeon_ring *ring = &rdev->ring[ridx];
772 unsigned count, i, j;
774 radeon_ring_free_size(rdev, ring);
775 count = (ring->ring_size / 4) - ring->ring_free_dw;
776 seq_printf(m, "wptr(0x%04x): 0x%08x\n", ring->wptr_reg, RREG32(ring->wptr_reg));
777 seq_printf(m, "rptr(0x%04x): 0x%08x\n", ring->rptr_reg, RREG32(ring->rptr_reg));
778 if (ring->rptr_save_reg) {
779 seq_printf(m, "rptr next(0x%04x): 0x%08x\n", ring->rptr_save_reg,
780 RREG32(ring->rptr_save_reg));
782 seq_printf(m, "driver's copy of the wptr: 0x%08x\n", ring->wptr);
783 seq_printf(m, "driver's copy of the rptr: 0x%08x\n", ring->rptr);
784 seq_printf(m, "%u free dwords in ring\n", ring->ring_free_dw);
785 seq_printf(m, "%u dwords in ring\n", count);
787 for (j = 0; j <= count; j++) {
788 seq_printf(m, "r[%04d]=0x%08x\n", i, ring->ring[i]);
789 i = (i + 1) & ring->ptr_mask;
794 static int radeon_ring_type_gfx_index = RADEON_RING_TYPE_GFX_INDEX;
795 static int cayman_ring_type_cp1_index = CAYMAN_RING_TYPE_CP1_INDEX;
796 static int cayman_ring_type_cp2_index = CAYMAN_RING_TYPE_CP2_INDEX;
798 static struct drm_info_list radeon_debugfs_ring_info_list[] = {
799 {"radeon_ring_gfx", radeon_debugfs_ring_info, 0, &radeon_ring_type_gfx_index},
800 {"radeon_ring_cp1", radeon_debugfs_ring_info, 0, &cayman_ring_type_cp1_index},
801 {"radeon_ring_cp2", radeon_debugfs_ring_info, 0, &cayman_ring_type_cp2_index},
804 static int radeon_debugfs_sa_info(struct seq_file *m, void *data)
806 struct drm_info_node *node = (struct drm_info_node *) m->private;
807 struct drm_device *dev = node->minor->dev;
808 struct radeon_device *rdev = dev->dev_private;
810 radeon_sa_bo_dump_debug_info(&rdev->ring_tmp_bo, m);
816 static struct drm_info_list radeon_debugfs_sa_list[] = {
817 {"radeon_sa_info", &radeon_debugfs_sa_info, 0, NULL},
822 static int radeon_debugfs_ring_init(struct radeon_device *rdev, struct radeon_ring *ring)
824 #if defined(CONFIG_DEBUG_FS)
826 for (i = 0; i < ARRAY_SIZE(radeon_debugfs_ring_info_list); ++i) {
827 struct drm_info_list *info = &radeon_debugfs_ring_info_list[i];
828 int ridx = *(int*)radeon_debugfs_ring_info_list[i].data;
831 if (&rdev->ring[ridx] != ring)
834 r = radeon_debugfs_add_files(rdev, info, 1);
842 static int radeon_debugfs_sa_init(struct radeon_device *rdev)
844 #if defined(CONFIG_DEBUG_FS)
845 return radeon_debugfs_add_files(rdev, radeon_debugfs_sa_list, 1);