diff options
Diffstat (limited to 'sys/dev/drm2/radeon/radeon_ring.c')
| -rw-r--r-- | sys/dev/drm2/radeon/radeon_ring.c | 883 |
1 files changed, 0 insertions, 883 deletions
diff --git a/sys/dev/drm2/radeon/radeon_ring.c b/sys/dev/drm2/radeon/radeon_ring.c deleted file mode 100644 index 387182ac5273a..0000000000000 --- a/sys/dev/drm2/radeon/radeon_ring.c +++ /dev/null @@ -1,883 +0,0 @@ -/* - * Copyright 2008 Advanced Micro Devices, Inc. - * Copyright 2008 Red Hat Inc. - * Copyright 2009 Jerome Glisse. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: Dave Airlie - * Alex Deucher - * Jerome Glisse - * Christian König - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <dev/drm2/drmP.h> -#include <dev/drm2/radeon/radeon_drm.h> -#include "radeon_reg.h" -#include "radeon.h" -#include "atom.h" - -#ifdef FREEBSD_WIP -/* - * IB - * IBs (Indirect Buffers) and areas of GPU accessible memory where - * commands are stored. You can put a pointer to the IB in the - * command ring and the hw will fetch the commands from the IB - * and execute them. Generally userspace acceleration drivers - * produce command buffers which are send to the kernel and - * put in IBs for execution by the requested ring. - */ -static int radeon_debugfs_sa_init(struct radeon_device *rdev); -#endif /* FREEBSD_WIP */ - -/** - * radeon_ib_get - request an IB (Indirect Buffer) - * - * @rdev: radeon_device pointer - * @ring: ring index the IB is associated with - * @ib: IB object returned - * @size: requested IB size - * - * Request an IB (all asics). IBs are allocated using the - * suballocator. - * Returns 0 on success, error on failure. - */ -int radeon_ib_get(struct radeon_device *rdev, int ring, - struct radeon_ib *ib, struct radeon_vm *vm, - unsigned size) -{ - int i, r; - - r = radeon_sa_bo_new(rdev, &rdev->ring_tmp_bo, &ib->sa_bo, size, 256, true); - if (r) { - dev_err(rdev->dev, "failed to get a new IB (%d)\n", r); - return r; - } - - r = radeon_semaphore_create(rdev, &ib->semaphore); - if (r) { - return r; - } - - ib->ring = ring; - ib->fence = NULL; - ib->ptr = radeon_sa_bo_cpu_addr(ib->sa_bo); - ib->vm = vm; - if (vm) { - /* ib pool is bound at RADEON_VA_IB_OFFSET in virtual address - * space and soffset is the offset inside the pool bo - */ - ib->gpu_addr = ib->sa_bo->soffset + RADEON_VA_IB_OFFSET; - } else { - ib->gpu_addr = radeon_sa_bo_gpu_addr(ib->sa_bo); - } - ib->is_const_ib = false; - for (i = 0; i < RADEON_NUM_RINGS; ++i) - ib->sync_to[i] = NULL; - - return 0; -} - -/** - * radeon_ib_free - free an IB (Indirect Buffer) - * - * @rdev: radeon_device pointer - * @ib: IB object to free - * - * Free an IB (all asics). - */ -void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib *ib) -{ - radeon_semaphore_free(rdev, &ib->semaphore, ib->fence); - radeon_sa_bo_free(rdev, &ib->sa_bo, ib->fence); - radeon_fence_unref(&ib->fence); -} - -/** - * radeon_ib_schedule - schedule an IB (Indirect Buffer) on the ring - * - * @rdev: radeon_device pointer - * @ib: IB object to schedule - * @const_ib: Const IB to schedule (SI only) - * - * Schedule an IB on the associated ring (all asics). - * Returns 0 on success, error on failure. - * - * On SI, there are two parallel engines fed from the primary ring, - * the CE (Constant Engine) and the DE (Drawing Engine). Since - * resource descriptors have moved to memory, the CE allows you to - * prime the caches while the DE is updating register state so that - * the resource descriptors will be already in cache when the draw is - * processed. To accomplish this, the userspace driver submits two - * IBs, one for the CE and one for the DE. If there is a CE IB (called - * a CONST_IB), it will be put on the ring prior to the DE IB. Prior - * to SI there was just a DE IB. - */ -int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib, - struct radeon_ib *const_ib) -{ - struct radeon_ring *ring = &rdev->ring[ib->ring]; - bool need_sync = false; - int i, r = 0; - - if (!ib->length_dw || !ring->ready) { - /* TODO: Nothings in the ib we should report. */ - dev_err(rdev->dev, "couldn't schedule ib\n"); - return -EINVAL; - } - - /* 64 dwords should be enough for fence too */ - r = radeon_ring_lock(rdev, ring, 64 + RADEON_NUM_RINGS * 8); - if (r) { - dev_err(rdev->dev, "scheduling IB failed (%d).\n", r); - return r; - } - for (i = 0; i < RADEON_NUM_RINGS; ++i) { - struct radeon_fence *fence = ib->sync_to[i]; - if (radeon_fence_need_sync(fence, ib->ring)) { - need_sync = true; - radeon_semaphore_sync_rings(rdev, ib->semaphore, - fence->ring, ib->ring); - radeon_fence_note_sync(fence, ib->ring); - } - } - /* immediately free semaphore when we don't need to sync */ - if (!need_sync) { - radeon_semaphore_free(rdev, &ib->semaphore, NULL); - } - /* if we can't remember our last VM flush then flush now! */ - /* XXX figure out why we have to flush for every IB */ - if (ib->vm /*&& !ib->vm->last_flush*/) { - radeon_ring_vm_flush(rdev, ib->ring, ib->vm); - } - if (const_ib) { - radeon_ring_ib_execute(rdev, const_ib->ring, const_ib); - radeon_semaphore_free(rdev, &const_ib->semaphore, NULL); - } - radeon_ring_ib_execute(rdev, ib->ring, ib); - r = radeon_fence_emit(rdev, &ib->fence, ib->ring); - if (r) { - dev_err(rdev->dev, "failed to emit fence for new IB (%d)\n", r); - radeon_ring_unlock_undo(rdev, ring); - return r; - } - if (const_ib) { - const_ib->fence = radeon_fence_ref(ib->fence); - } - /* we just flushed the VM, remember that */ - if (ib->vm && !ib->vm->last_flush) { - ib->vm->last_flush = radeon_fence_ref(ib->fence); - } - radeon_ring_unlock_commit(rdev, ring); - return 0; -} - -/** - * radeon_ib_pool_init - Init the IB (Indirect Buffer) pool - * - * @rdev: radeon_device pointer - * - * Initialize the suballocator to manage a pool of memory - * for use as IBs (all asics). - * Returns 0 on success, error on failure. - */ -int radeon_ib_pool_init(struct radeon_device *rdev) -{ - int r; - - if (rdev->ib_pool_ready) { - return 0; - } - r = radeon_sa_bo_manager_init(rdev, &rdev->ring_tmp_bo, - RADEON_IB_POOL_SIZE*64*1024, - RADEON_GEM_DOMAIN_GTT); - if (r) { - return r; - } - - r = radeon_sa_bo_manager_start(rdev, &rdev->ring_tmp_bo); - if (r) { - return r; - } - - rdev->ib_pool_ready = true; -#ifdef FREEBSD_WIP - if (radeon_debugfs_sa_init(rdev)) { - dev_err(rdev->dev, "failed to register debugfs file for SA\n"); - } -#endif /* FREEBSD_WIP */ - return 0; -} - -/** - * radeon_ib_pool_fini - Free the IB (Indirect Buffer) pool - * - * @rdev: radeon_device pointer - * - * Tear down the suballocator managing the pool of memory - * for use as IBs (all asics). - */ -void radeon_ib_pool_fini(struct radeon_device *rdev) -{ - if (rdev->ib_pool_ready) { - radeon_sa_bo_manager_suspend(rdev, &rdev->ring_tmp_bo); - radeon_sa_bo_manager_fini(rdev, &rdev->ring_tmp_bo); - rdev->ib_pool_ready = false; - } -} - -/** - * radeon_ib_ring_tests - test IBs on the rings - * - * @rdev: radeon_device pointer - * - * Test an IB (Indirect Buffer) on each ring. - * If the test fails, disable the ring. - * Returns 0 on success, error if the primary GFX ring - * IB test fails. - */ -int radeon_ib_ring_tests(struct radeon_device *rdev) -{ - unsigned i; - int r; - - for (i = 0; i < RADEON_NUM_RINGS; ++i) { - struct radeon_ring *ring = &rdev->ring[i]; - - if (!ring->ready) - continue; - - r = radeon_ib_test(rdev, i, ring); - if (r) { - ring->ready = false; - - if (i == RADEON_RING_TYPE_GFX_INDEX) { - /* oh, oh, that's really bad */ - DRM_ERROR("radeon: failed testing IB on GFX ring (%d).\n", r); - rdev->accel_working = false; - return r; - - } else { - /* still not good, but we can live with it */ - DRM_ERROR("radeon: failed testing IB on ring %d (%d).\n", i, r); - } - } - } - return 0; -} - -#ifdef FREEBSD_WIP -/* - * Rings - * Most engines on the GPU are fed via ring buffers. Ring - * buffers are areas of GPU accessible memory that the host - * writes commands into and the GPU reads commands out of. - * There is a rptr (read pointer) that determines where the - * GPU is currently reading, and a wptr (write pointer) - * which determines where the host has written. When the - * pointers are equal, the ring is idle. When the host - * writes commands to the ring buffer, it increments the - * wptr. The GPU then starts fetching commands and executes - * them until the pointers are equal again. - */ -static int radeon_debugfs_ring_init(struct radeon_device *rdev, struct radeon_ring *ring); -#endif /* FREEBSD_WIP */ - -/** - * radeon_ring_write - write a value to the ring - * - * @ring: radeon_ring structure holding ring information - * @v: dword (dw) value to write - * - * Write a value to the requested ring buffer (all asics). - */ -void radeon_ring_write(struct radeon_ring *ring, uint32_t v) -{ -#if DRM_DEBUG_CODE - if (ring->count_dw <= 0) { - DRM_ERROR("radeon: writing more dwords to the ring than expected!\n"); - } -#endif - ring->ring[ring->wptr++] = v; - ring->wptr &= ring->ptr_mask; - ring->count_dw--; - ring->ring_free_dw--; -} - -/** - * radeon_ring_supports_scratch_reg - check if the ring supports - * writing to scratch registers - * - * @rdev: radeon_device pointer - * @ring: radeon_ring structure holding ring information - * - * Check if a specific ring supports writing to scratch registers (all asics). - * Returns true if the ring supports writing to scratch regs, false if not. - */ -bool radeon_ring_supports_scratch_reg(struct radeon_device *rdev, - struct radeon_ring *ring) -{ - switch (ring->idx) { - case RADEON_RING_TYPE_GFX_INDEX: - case CAYMAN_RING_TYPE_CP1_INDEX: - case CAYMAN_RING_TYPE_CP2_INDEX: - return true; - default: - return false; - } -} - -/** - * radeon_ring_free_size - update the free size - * - * @rdev: radeon_device pointer - * @ring: radeon_ring structure holding ring information - * - * Update the free dw slots in the ring buffer (all asics). - */ -void radeon_ring_free_size(struct radeon_device *rdev, struct radeon_ring *ring) -{ - u32 rptr; - - if (rdev->wb.enabled) - rptr = le32_to_cpu(rdev->wb.wb[ring->rptr_offs/4]); - else - rptr = RREG32(ring->rptr_reg); - ring->rptr = (rptr & ring->ptr_reg_mask) >> ring->ptr_reg_shift; - /* This works because ring_size is a power of 2 */ - ring->ring_free_dw = (ring->rptr + (ring->ring_size / 4)); - ring->ring_free_dw -= ring->wptr; - ring->ring_free_dw &= ring->ptr_mask; - if (!ring->ring_free_dw) { - ring->ring_free_dw = ring->ring_size / 4; - } -} - -/** - * radeon_ring_alloc - allocate space on the ring buffer - * - * @rdev: radeon_device pointer - * @ring: radeon_ring structure holding ring information - * @ndw: number of dwords to allocate in the ring buffer - * - * Allocate @ndw dwords in the ring buffer (all asics). - * Returns 0 on success, error on failure. - */ -int radeon_ring_alloc(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ndw) -{ - int r; - - /* make sure we aren't trying to allocate more space than there is on the ring */ - if (ndw > (ring->ring_size / 4)) - return -ENOMEM; - /* Align requested size with padding so unlock_commit can - * pad safely */ - ndw = (ndw + ring->align_mask) & ~ring->align_mask; - while (ndw > (ring->ring_free_dw - 1)) { - radeon_ring_free_size(rdev, ring); - if (ndw < ring->ring_free_dw) { - break; - } - r = radeon_fence_wait_next_locked(rdev, ring->idx); - if (r) - return r; - } - ring->count_dw = ndw; - ring->wptr_old = ring->wptr; - return 0; -} - -/** - * radeon_ring_lock - lock the ring and allocate space on it - * - * @rdev: radeon_device pointer - * @ring: radeon_ring structure holding ring information - * @ndw: number of dwords to allocate in the ring buffer - * - * Lock the ring and allocate @ndw dwords in the ring buffer - * (all asics). - * Returns 0 on success, error on failure. - */ -int radeon_ring_lock(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ndw) -{ - int r; - - sx_xlock(&rdev->ring_lock); - r = radeon_ring_alloc(rdev, ring, ndw); - if (r) { - sx_xunlock(&rdev->ring_lock); - return r; - } - return 0; -} - -/** - * radeon_ring_commit - tell the GPU to execute the new - * commands on the ring buffer - * - * @rdev: radeon_device pointer - * @ring: radeon_ring structure holding ring information - * - * Update the wptr (write pointer) to tell the GPU to - * execute new commands on the ring buffer (all asics). - */ -void radeon_ring_commit(struct radeon_device *rdev, struct radeon_ring *ring) -{ - /* We pad to match fetch size */ - while (ring->wptr & ring->align_mask) { - radeon_ring_write(ring, ring->nop); - } - DRM_MEMORYBARRIER(); - WREG32(ring->wptr_reg, (ring->wptr << ring->ptr_reg_shift) & ring->ptr_reg_mask); - (void)RREG32(ring->wptr_reg); -} - -/** - * radeon_ring_unlock_commit - tell the GPU to execute the new - * commands on the ring buffer and unlock it - * - * @rdev: radeon_device pointer - * @ring: radeon_ring structure holding ring information - * - * Call radeon_ring_commit() then unlock the ring (all asics). - */ -void radeon_ring_unlock_commit(struct radeon_device *rdev, struct radeon_ring *ring) -{ - radeon_ring_commit(rdev, ring); - sx_xunlock(&rdev->ring_lock); -} - -/** - * radeon_ring_undo - reset the wptr - * - * @ring: radeon_ring structure holding ring information - * - * Reset the driver's copy of the wptr (all asics). - */ -void radeon_ring_undo(struct radeon_ring *ring) -{ - ring->wptr = ring->wptr_old; -} - -/** - * radeon_ring_unlock_undo - reset the wptr and unlock the ring - * - * @ring: radeon_ring structure holding ring information - * - * Call radeon_ring_undo() then unlock the ring (all asics). - */ -void radeon_ring_unlock_undo(struct radeon_device *rdev, struct radeon_ring *ring) -{ - radeon_ring_undo(ring); - sx_xunlock(&rdev->ring_lock); -} - -/** - * radeon_ring_force_activity - add some nop packets to the ring - * - * @rdev: radeon_device pointer - * @ring: radeon_ring structure holding ring information - * - * Add some nop packets to the ring to force activity (all asics). - * Used for lockup detection to see if the rptr is advancing. - */ -void radeon_ring_force_activity(struct radeon_device *rdev, struct radeon_ring *ring) -{ - int r; - - radeon_ring_free_size(rdev, ring); - if (ring->rptr == ring->wptr) { - r = radeon_ring_alloc(rdev, ring, 1); - if (!r) { - radeon_ring_write(ring, ring->nop); - radeon_ring_commit(rdev, ring); - } - } -} - -/** - * radeon_ring_lockup_update - update lockup variables - * - * @ring: radeon_ring structure holding ring information - * - * Update the last rptr value and timestamp (all asics). - */ -void radeon_ring_lockup_update(struct radeon_ring *ring) -{ - ring->last_rptr = ring->rptr; - ring->last_activity = jiffies; -} - -/** - * radeon_ring_test_lockup() - check if ring is lockedup by recording information - * @rdev: radeon device structure - * @ring: radeon_ring structure holding ring information - * - * We don't need to initialize the lockup tracking information as we will either - * have CP rptr to a different value of jiffies wrap around which will force - * initialization of the lockup tracking informations. - * - * A possible false positivie is if we get call after while and last_cp_rptr == - * the current CP rptr, even if it's unlikely it might happen. To avoid this - * if the elapsed time since last call is bigger than 2 second than we return - * false and update the tracking information. Due to this the caller must call - * radeon_ring_test_lockup several time in less than 2sec for lockup to be reported - * the fencing code should be cautious about that. - * - * Caller should write to the ring to force CP to do something so we don't get - * false positive when CP is just gived nothing to do. - * - **/ -bool radeon_ring_test_lockup(struct radeon_device *rdev, struct radeon_ring *ring) -{ - unsigned long cjiffies, elapsed; - uint32_t rptr; - - cjiffies = jiffies; - if (!time_after(cjiffies, ring->last_activity)) { - /* likely a wrap around */ - radeon_ring_lockup_update(ring); - return false; - } - rptr = RREG32(ring->rptr_reg); - ring->rptr = (rptr & ring->ptr_reg_mask) >> ring->ptr_reg_shift; - if (ring->rptr != ring->last_rptr) { - /* CP is still working no lockup */ - radeon_ring_lockup_update(ring); - return false; - } - elapsed = jiffies_to_msecs(cjiffies - ring->last_activity); - if (radeon_lockup_timeout && elapsed >= radeon_lockup_timeout) { - dev_err(rdev->dev, "GPU lockup CP stall for more than %lumsec\n", elapsed); - return true; - } - /* give a chance to the GPU ... */ - return false; -} - -/** - * radeon_ring_backup - Back up the content of a ring - * - * @rdev: radeon_device pointer - * @ring: the ring we want to back up - * - * Saves all unprocessed commits from a ring, returns the number of dwords saved. - */ -unsigned radeon_ring_backup(struct radeon_device *rdev, struct radeon_ring *ring, - uint32_t **data) -{ - unsigned size, ptr, i; - - /* just in case lock the ring */ - sx_xlock(&rdev->ring_lock); - *data = NULL; - - if (ring->ring_obj == NULL) { - sx_xunlock(&rdev->ring_lock); - return 0; - } - - /* it doesn't make sense to save anything if all fences are signaled */ - if (!radeon_fence_count_emitted(rdev, ring->idx)) { - sx_xunlock(&rdev->ring_lock); - return 0; - } - - /* calculate the number of dw on the ring */ - if (ring->rptr_save_reg) - ptr = RREG32(ring->rptr_save_reg); - else if (rdev->wb.enabled) - ptr = le32_to_cpu(*ring->next_rptr_cpu_addr); - else { - /* no way to read back the next rptr */ - sx_xunlock(&rdev->ring_lock); - return 0; - } - - size = ring->wptr + (ring->ring_size / 4); - size -= ptr; - size &= ring->ptr_mask; - if (size == 0) { - sx_xunlock(&rdev->ring_lock); - return 0; - } - - /* and then save the content of the ring */ - *data = malloc(size * sizeof(uint32_t), DRM_MEM_DRIVER, M_NOWAIT); - if (!*data) { - sx_xunlock(&rdev->ring_lock); - return 0; - } - for (i = 0; i < size; ++i) { - (*data)[i] = ring->ring[ptr++]; - ptr &= ring->ptr_mask; - } - - sx_xunlock(&rdev->ring_lock); - return size; -} - -/** - * radeon_ring_restore - append saved commands to the ring again - * - * @rdev: radeon_device pointer - * @ring: ring to append commands to - * @size: number of dwords we want to write - * @data: saved commands - * - * Allocates space on the ring and restore the previously saved commands. - */ -int radeon_ring_restore(struct radeon_device *rdev, struct radeon_ring *ring, - unsigned size, uint32_t *data) -{ - int i, r; - - if (!size || !data) - return 0; - - /* restore the saved ring content */ - r = radeon_ring_lock(rdev, ring, size); - if (r) - return r; - - for (i = 0; i < size; ++i) { - radeon_ring_write(ring, data[i]); - } - - radeon_ring_unlock_commit(rdev, ring); - free(data, DRM_MEM_DRIVER); - return 0; -} - -/** - * radeon_ring_init - init driver ring struct. - * - * @rdev: radeon_device pointer - * @ring: radeon_ring structure holding ring information - * @ring_size: size of the ring - * @rptr_offs: offset of the rptr writeback location in the WB buffer - * @rptr_reg: MMIO offset of the rptr register - * @wptr_reg: MMIO offset of the wptr register - * @ptr_reg_shift: bit offset of the rptr/wptr values - * @ptr_reg_mask: bit mask of the rptr/wptr values - * @nop: nop packet for this ring - * - * Initialize the driver information for the selected ring (all asics). - * Returns 0 on success, error on failure. - */ -int radeon_ring_init(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ring_size, - unsigned rptr_offs, unsigned rptr_reg, unsigned wptr_reg, - u32 ptr_reg_shift, u32 ptr_reg_mask, u32 nop) -{ - int r; - void *ring_ptr; /* FreeBSD: to please GCC 4.2. */ - - ring->ring_size = ring_size; - ring->rptr_offs = rptr_offs; - ring->rptr_reg = rptr_reg; - ring->wptr_reg = wptr_reg; - ring->ptr_reg_shift = ptr_reg_shift; - ring->ptr_reg_mask = ptr_reg_mask; - ring->nop = nop; - /* Allocate ring buffer */ - if (ring->ring_obj == NULL) { - r = radeon_bo_create(rdev, ring->ring_size, PAGE_SIZE, true, - RADEON_GEM_DOMAIN_GTT, - NULL, &ring->ring_obj); - if (r) { - dev_err(rdev->dev, "(%d) ring create failed\n", r); - return r; - } - r = radeon_bo_reserve(ring->ring_obj, false); - if (unlikely(r != 0)) { - radeon_bo_unref(&ring->ring_obj); - return r; - } - r = radeon_bo_pin(ring->ring_obj, RADEON_GEM_DOMAIN_GTT, - &ring->gpu_addr); - if (r) { - radeon_bo_unreserve(ring->ring_obj); - radeon_bo_unref(&ring->ring_obj); - dev_err(rdev->dev, "(%d) ring pin failed\n", r); - return r; - } - ring_ptr = &ring->ring; - r = radeon_bo_kmap(ring->ring_obj, - ring_ptr); - radeon_bo_unreserve(ring->ring_obj); - if (r) { - dev_err(rdev->dev, "(%d) ring map failed\n", r); - radeon_bo_unref(&ring->ring_obj); - return r; - } - } - ring->ptr_mask = (ring->ring_size / 4) - 1; - ring->ring_free_dw = ring->ring_size / 4; - if (rdev->wb.enabled) { - u32 index = RADEON_WB_RING0_NEXT_RPTR + (ring->idx * 4); - ring->next_rptr_gpu_addr = rdev->wb.gpu_addr + index; - ring->next_rptr_cpu_addr = &rdev->wb.wb[index/4]; - } -#ifdef FREEBSD_WIP - if (radeon_debugfs_ring_init(rdev, ring)) { - DRM_ERROR("Failed to register debugfs file for rings !\n"); - } -#endif /* FREEBSD_WIP */ - radeon_ring_lockup_update(ring); - return 0; -} - -/** - * radeon_ring_fini - tear down the driver ring struct. - * - * @rdev: radeon_device pointer - * @ring: radeon_ring structure holding ring information - * - * Tear down the driver information for the selected ring (all asics). - */ -void radeon_ring_fini(struct radeon_device *rdev, struct radeon_ring *ring) -{ - int r; - struct radeon_bo *ring_obj; - - sx_xlock(&rdev->ring_lock); - ring_obj = ring->ring_obj; - ring->ready = false; - ring->ring = NULL; - ring->ring_obj = NULL; - sx_xunlock(&rdev->ring_lock); - - if (ring_obj) { - r = radeon_bo_reserve(ring_obj, false); - if (likely(r == 0)) { - radeon_bo_kunmap(ring_obj); - radeon_bo_unpin(ring_obj); - radeon_bo_unreserve(ring_obj); - } - radeon_bo_unref(&ring_obj); - } -} - -/* - * Debugfs info - */ -#if defined(CONFIG_DEBUG_FS) - -static int radeon_debugfs_ring_info(struct seq_file *m, void *data) -{ - struct drm_info_node *node = (struct drm_info_node *) m->private; - struct drm_device *dev = node->minor->dev; - struct radeon_device *rdev = dev->dev_private; - int ridx = *(int*)node->info_ent->data; - struct radeon_ring *ring = &rdev->ring[ridx]; - unsigned count, i, j; - u32 tmp; - - radeon_ring_free_size(rdev, ring); - count = (ring->ring_size / 4) - ring->ring_free_dw; - tmp = RREG32(ring->wptr_reg) >> ring->ptr_reg_shift; - seq_printf(m, "wptr(0x%04x): 0x%08x [%5d]\n", ring->wptr_reg, tmp, tmp); - tmp = RREG32(ring->rptr_reg) >> ring->ptr_reg_shift; - seq_printf(m, "rptr(0x%04x): 0x%08x [%5d]\n", ring->rptr_reg, tmp, tmp); - if (ring->rptr_save_reg) { - seq_printf(m, "rptr next(0x%04x): 0x%08x\n", ring->rptr_save_reg, - RREG32(ring->rptr_save_reg)); - } - seq_printf(m, "driver's copy of the wptr: 0x%08x [%5d]\n", ring->wptr, ring->wptr); - seq_printf(m, "driver's copy of the rptr: 0x%08x [%5d]\n", ring->rptr, ring->rptr); - seq_printf(m, "last semaphore signal addr : 0x%016llx\n", ring->last_semaphore_signal_addr); - seq_printf(m, "last semaphore wait addr : 0x%016llx\n", ring->last_semaphore_wait_addr); - seq_printf(m, "%u free dwords in ring\n", ring->ring_free_dw); - seq_printf(m, "%u dwords in ring\n", count); - /* print 8 dw before current rptr as often it's the last executed - * packet that is the root issue - */ - i = (ring->rptr + ring->ptr_mask + 1 - 32) & ring->ptr_mask; - for (j = 0; j <= (count + 32); j++) { - seq_printf(m, "r[%5d]=0x%08x\n", i, ring->ring[i]); - i = (i + 1) & ring->ptr_mask; - } - return 0; -} - -static int radeon_ring_type_gfx_index = RADEON_RING_TYPE_GFX_INDEX; -static int cayman_ring_type_cp1_index = CAYMAN_RING_TYPE_CP1_INDEX; -static int cayman_ring_type_cp2_index = CAYMAN_RING_TYPE_CP2_INDEX; -static int radeon_ring_type_dma1_index = R600_RING_TYPE_DMA_INDEX; -static int radeon_ring_type_dma2_index = CAYMAN_RING_TYPE_DMA1_INDEX; - -static struct drm_info_list radeon_debugfs_ring_info_list[] = { - {"radeon_ring_gfx", radeon_debugfs_ring_info, 0, &radeon_ring_type_gfx_index}, - {"radeon_ring_cp1", radeon_debugfs_ring_info, 0, &cayman_ring_type_cp1_index}, - {"radeon_ring_cp2", radeon_debugfs_ring_info, 0, &cayman_ring_type_cp2_index}, - {"radeon_ring_dma1", radeon_debugfs_ring_info, 0, &radeon_ring_type_dma1_index}, - {"radeon_ring_dma2", radeon_debugfs_ring_info, 0, &radeon_ring_type_dma2_index}, -}; - -static int radeon_debugfs_sa_info(struct seq_file *m, void *data) -{ - struct drm_info_node *node = (struct drm_info_node *) m->private; - struct drm_device *dev = node->minor->dev; - struct radeon_device *rdev = dev->dev_private; - - radeon_sa_bo_dump_debug_info(&rdev->ring_tmp_bo, m); - - return 0; - -} - -static struct drm_info_list radeon_debugfs_sa_list[] = { - {"radeon_sa_info", &radeon_debugfs_sa_info, 0, NULL}, -}; - -#endif - -#ifdef FREEBSD_WIP -static int radeon_debugfs_ring_init(struct radeon_device *rdev, struct radeon_ring *ring) -{ -#if defined(CONFIG_DEBUG_FS) - unsigned i; - for (i = 0; i < ARRAY_SIZE(radeon_debugfs_ring_info_list); ++i) { - struct drm_info_list *info = &radeon_debugfs_ring_info_list[i]; - int ridx = *(int*)radeon_debugfs_ring_info_list[i].data; - unsigned r; - - if (&rdev->ring[ridx] != ring) - continue; - - r = radeon_debugfs_add_files(rdev, info, 1); - if (r) - return r; - } -#endif - return 0; -} - -static int radeon_debugfs_sa_init(struct radeon_device *rdev) -{ -#if defined(CONFIG_DEBUG_FS) - return radeon_debugfs_add_files(rdev, radeon_debugfs_sa_list, 1); -#else - return 0; -#endif -} -#endif /* FREEBSD_WIP */ |