diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_cs.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_cs.c | 302 |
1 files changed, 251 insertions, 51 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 29afd71e0840..435a3d970ab8 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -58,7 +58,7 @@ int radeon_cs_parser_relocs(struct radeon_cs_parser *p) duplicate = false; r = (struct drm_radeon_cs_reloc *)&chunk->kdata[i*4]; - for (j = 0; j < p->nrelocs; j++) { + for (j = 0; j < i; j++) { if (r->handle == p->relocs[j].handle) { p->relocs_ptr[i] = &p->relocs[j]; duplicate = true; @@ -84,16 +84,75 @@ int radeon_cs_parser_relocs(struct radeon_cs_parser *p) p->relocs[i].flags = r->flags; radeon_bo_list_add_object(&p->relocs[i].lobj, &p->validated); - } + + if (p->relocs[i].robj->tbo.sync_obj && !(r->flags & RADEON_RELOC_DONT_SYNC)) { + struct radeon_fence *fence = p->relocs[i].robj->tbo.sync_obj; + if (!radeon_fence_signaled(fence)) { + p->sync_to_ring[fence->ring] = true; + } + } + } else + p->relocs[i].handle = 0; } return radeon_bo_list_validate(&p->validated); } +static int radeon_cs_get_ring(struct radeon_cs_parser *p, u32 ring, s32 priority) +{ + p->priority = priority; + + switch (ring) { + default: + DRM_ERROR("unknown ring id: %d\n", ring); + return -EINVAL; + case RADEON_CS_RING_GFX: + p->ring = RADEON_RING_TYPE_GFX_INDEX; + break; + case RADEON_CS_RING_COMPUTE: + /* for now */ + p->ring = RADEON_RING_TYPE_GFX_INDEX; + break; + } + return 0; +} + +static int radeon_cs_sync_rings(struct radeon_cs_parser *p) +{ + int i, r; + + for (i = 0; i < RADEON_NUM_RINGS; ++i) { + /* no need to sync to our own or unused rings */ + if (i == p->ring || !p->sync_to_ring[i] || !p->rdev->ring[i].ready) + continue; + + if (!p->ib->fence->semaphore) { + r = radeon_semaphore_create(p->rdev, &p->ib->fence->semaphore); + if (r) + return r; + } + + r = radeon_ring_lock(p->rdev, &p->rdev->ring[i], 3); + if (r) + return r; + radeon_semaphore_emit_signal(p->rdev, i, p->ib->fence->semaphore); + radeon_ring_unlock_commit(p->rdev, &p->rdev->ring[i]); + + r = radeon_ring_lock(p->rdev, &p->rdev->ring[p->ring], 3); + if (r) + return r; + radeon_semaphore_emit_wait(p->rdev, p->ring, p->ib->fence->semaphore); + radeon_ring_unlock_commit(p->rdev, &p->rdev->ring[p->ring]); + } + return 0; +} + int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) { struct drm_radeon_cs *cs = data; uint64_t *chunk_array_ptr; - unsigned size, i, flags = 0; + unsigned size, i; + u32 ring = RADEON_CS_RING_GFX; + s32 priority = 0; if (!cs->num_chunks) { return 0; @@ -103,6 +162,7 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) p->idx = 0; p->chunk_ib_idx = -1; p->chunk_relocs_idx = -1; + p->chunk_flags_idx = -1; p->chunks_array = kcalloc(cs->num_chunks, sizeof(uint64_t), GFP_KERNEL); if (p->chunks_array == NULL) { return -ENOMEM; @@ -112,6 +172,7 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) sizeof(uint64_t)*cs->num_chunks)) { return -EFAULT; } + p->cs_flags = 0; p->nchunks = cs->num_chunks; p->chunks = kcalloc(p->nchunks, sizeof(struct radeon_cs_chunk), GFP_KERNEL); if (p->chunks == NULL) { @@ -140,16 +201,19 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) if (p->chunks[i].length_dw == 0) return -EINVAL; } - if (p->chunks[i].chunk_id == RADEON_CHUNK_ID_FLAGS && - !p->chunks[i].length_dw) { - return -EINVAL; + if (p->chunks[i].chunk_id == RADEON_CHUNK_ID_FLAGS) { + p->chunk_flags_idx = i; + /* zero length flags aren't useful */ + if (p->chunks[i].length_dw == 0) + return -EINVAL; } p->chunks[i].length_dw = user_chunk.length_dw; p->chunks[i].user_ptr = (void __user *)(unsigned long)user_chunk.chunk_data; cdata = (uint32_t *)(unsigned long)user_chunk.chunk_data; - if (p->chunks[i].chunk_id != RADEON_CHUNK_ID_IB) { + if ((p->chunks[i].chunk_id == RADEON_CHUNK_ID_RELOCS) || + (p->chunks[i].chunk_id == RADEON_CHUNK_ID_FLAGS)) { size = p->chunks[i].length_dw * sizeof(uint32_t); p->chunks[i].kdata = kmalloc(size, GFP_KERNEL); if (p->chunks[i].kdata == NULL) { @@ -160,29 +224,58 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) return -EFAULT; } if (p->chunks[i].chunk_id == RADEON_CHUNK_ID_FLAGS) { - flags = p->chunks[i].kdata[0]; + p->cs_flags = p->chunks[i].kdata[0]; + if (p->chunks[i].length_dw > 1) + ring = p->chunks[i].kdata[1]; + if (p->chunks[i].length_dw > 2) + priority = (s32)p->chunks[i].kdata[2]; } - } else { - p->chunks[i].kpage[0] = kmalloc(PAGE_SIZE, GFP_KERNEL); - p->chunks[i].kpage[1] = kmalloc(PAGE_SIZE, GFP_KERNEL); - if (p->chunks[i].kpage[0] == NULL || p->chunks[i].kpage[1] == NULL) { - kfree(p->chunks[i].kpage[0]); - kfree(p->chunks[i].kpage[1]); - return -ENOMEM; - } - p->chunks[i].kpage_idx[0] = -1; - p->chunks[i].kpage_idx[1] = -1; - p->chunks[i].last_copied_page = -1; - p->chunks[i].last_page_index = ((p->chunks[i].length_dw * 4) - 1) / PAGE_SIZE; } } - if (p->chunks[p->chunk_ib_idx].length_dw > (16 * 1024)) { - DRM_ERROR("cs IB too big: %d\n", - p->chunks[p->chunk_ib_idx].length_dw); + + if ((p->cs_flags & RADEON_CS_USE_VM) && + !p->rdev->vm_manager.enabled) { + DRM_ERROR("VM not active on asic!\n"); + if (p->chunk_relocs_idx != -1) + kfree(p->chunks[p->chunk_relocs_idx].kdata); + if (p->chunk_flags_idx != -1) + kfree(p->chunks[p->chunk_flags_idx].kdata); return -EINVAL; } - p->keep_tiling_flags = (flags & RADEON_CS_KEEP_TILING_FLAGS) != 0; + if (radeon_cs_get_ring(p, ring, priority)) { + if (p->chunk_relocs_idx != -1) + kfree(p->chunks[p->chunk_relocs_idx].kdata); + if (p->chunk_flags_idx != -1) + kfree(p->chunks[p->chunk_flags_idx].kdata); + return -EINVAL; + } + + + /* deal with non-vm */ + if ((p->chunk_ib_idx != -1) && + ((p->cs_flags & RADEON_CS_USE_VM) == 0) && + (p->chunks[p->chunk_ib_idx].chunk_id == RADEON_CHUNK_ID_IB)) { + if (p->chunks[p->chunk_ib_idx].length_dw > (16 * 1024)) { + DRM_ERROR("cs IB too big: %d\n", + p->chunks[p->chunk_ib_idx].length_dw); + return -EINVAL; + } + p->chunks[p->chunk_ib_idx].kpage[0] = kmalloc(PAGE_SIZE, GFP_KERNEL); + p->chunks[p->chunk_ib_idx].kpage[1] = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (p->chunks[p->chunk_ib_idx].kpage[0] == NULL || + p->chunks[p->chunk_ib_idx].kpage[1] == NULL) { + kfree(p->chunks[p->chunk_ib_idx].kpage[0]); + kfree(p->chunks[p->chunk_ib_idx].kpage[1]); + return -ENOMEM; + } + p->chunks[p->chunk_ib_idx].kpage_idx[0] = -1; + p->chunks[p->chunk_ib_idx].kpage_idx[1] = -1; + p->chunks[p->chunk_ib_idx].last_copied_page = -1; + p->chunks[p->chunk_ib_idx].last_page_index = + ((p->chunks[p->chunk_ib_idx].length_dw * 4) - 1) / PAGE_SIZE; + } + return 0; } @@ -224,11 +317,139 @@ static void radeon_cs_parser_fini(struct radeon_cs_parser *parser, int error) radeon_ib_free(parser->rdev, &parser->ib); } +static int radeon_cs_ib_chunk(struct radeon_device *rdev, + struct radeon_cs_parser *parser) +{ + struct radeon_cs_chunk *ib_chunk; + int r; + + if (parser->chunk_ib_idx == -1) + return 0; + + if (parser->cs_flags & RADEON_CS_USE_VM) + return 0; + + ib_chunk = &parser->chunks[parser->chunk_ib_idx]; + /* Copy the packet into the IB, the parser will read from the + * input memory (cached) and write to the IB (which can be + * uncached). + */ + r = radeon_ib_get(rdev, parser->ring, &parser->ib, + ib_chunk->length_dw * 4); + if (r) { + DRM_ERROR("Failed to get ib !\n"); + return r; + } + parser->ib->length_dw = ib_chunk->length_dw; + r = radeon_cs_parse(parser); + if (r || parser->parser_error) { + DRM_ERROR("Invalid command stream !\n"); + return r; + } + r = radeon_cs_finish_pages(parser); + if (r) { + DRM_ERROR("Invalid command stream !\n"); + return r; + } + r = radeon_cs_sync_rings(parser); + if (r) { + DRM_ERROR("Failed to synchronize rings !\n"); + } + parser->ib->vm_id = 0; + r = radeon_ib_schedule(rdev, parser->ib); + if (r) { + DRM_ERROR("Failed to schedule IB !\n"); + } + return 0; +} + +static int radeon_bo_vm_update_pte(struct radeon_cs_parser *parser, + struct radeon_vm *vm) +{ + struct radeon_bo_list *lobj; + struct radeon_bo *bo; + int r; + + list_for_each_entry(lobj, &parser->validated, tv.head) { + bo = lobj->bo; + r = radeon_vm_bo_update_pte(parser->rdev, vm, bo, &bo->tbo.mem); + if (r) { + return r; + } + } + return 0; +} + +static int radeon_cs_ib_vm_chunk(struct radeon_device *rdev, + struct radeon_cs_parser *parser) +{ + struct radeon_cs_chunk *ib_chunk; + struct radeon_fpriv *fpriv = parser->filp->driver_priv; + struct radeon_vm *vm = &fpriv->vm; + int r; + + if (parser->chunk_ib_idx == -1) + return 0; + + if ((parser->cs_flags & RADEON_CS_USE_VM) == 0) + return 0; + + ib_chunk = &parser->chunks[parser->chunk_ib_idx]; + if (ib_chunk->length_dw > RADEON_IB_VM_MAX_SIZE) { + DRM_ERROR("cs IB too big: %d\n", ib_chunk->length_dw); + return -EINVAL; + } + r = radeon_ib_get(rdev, parser->ring, &parser->ib, + ib_chunk->length_dw * 4); + if (r) { + DRM_ERROR("Failed to get ib !\n"); + return r; + } + parser->ib->length_dw = ib_chunk->length_dw; + /* Copy the packet into the IB */ + if (DRM_COPY_FROM_USER(parser->ib->ptr, ib_chunk->user_ptr, + ib_chunk->length_dw * 4)) { + return -EFAULT; + } + r = radeon_ring_ib_parse(rdev, parser->ring, parser->ib); + if (r) { + return r; + } + + mutex_lock(&vm->mutex); + r = radeon_vm_bind(rdev, vm); + if (r) { + goto out; + } + r = radeon_bo_vm_update_pte(parser, vm); + if (r) { + goto out; + } + r = radeon_cs_sync_rings(parser); + if (r) { + DRM_ERROR("Failed to synchronize rings !\n"); + } + parser->ib->vm_id = vm->id; + /* ib pool is bind at 0 in virtual address space to gpu_addr is the + * offset inside the pool bo + */ + parser->ib->gpu_addr = parser->ib->sa_bo.offset; + r = radeon_ib_schedule(rdev, parser->ib); +out: + if (!r) { + if (vm->fence) { + radeon_fence_unref(&vm->fence); + } + vm->fence = radeon_fence_ref(parser->ib->fence); + } + mutex_unlock(&fpriv->vm.mutex); + return r; +} + int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) { struct radeon_device *rdev = dev->dev_private; struct radeon_cs_parser parser; - struct radeon_cs_chunk *ib_chunk; int r; radeon_mutex_lock(&rdev->cs_mutex); @@ -245,13 +466,6 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) radeon_mutex_unlock(&rdev->cs_mutex); return r; } - r = radeon_ib_get(rdev, &parser.ib); - if (r) { - DRM_ERROR("Failed to get ib !\n"); - radeon_cs_parser_fini(&parser, r); - radeon_mutex_unlock(&rdev->cs_mutex); - return r; - } r = radeon_cs_parser_relocs(&parser); if (r) { if (r != -ERESTARTSYS) @@ -260,29 +474,15 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) radeon_mutex_unlock(&rdev->cs_mutex); return r; } - /* Copy the packet into the IB, the parser will read from the - * input memory (cached) and write to the IB (which can be - * uncached). */ - ib_chunk = &parser.chunks[parser.chunk_ib_idx]; - parser.ib->length_dw = ib_chunk->length_dw; - r = radeon_cs_parse(&parser); - if (r || parser.parser_error) { - DRM_ERROR("Invalid command stream !\n"); - radeon_cs_parser_fini(&parser, r); - radeon_mutex_unlock(&rdev->cs_mutex); - return r; - } - r = radeon_cs_finish_pages(&parser); + r = radeon_cs_ib_chunk(rdev, &parser); if (r) { - DRM_ERROR("Invalid command stream !\n"); - radeon_cs_parser_fini(&parser, r); - radeon_mutex_unlock(&rdev->cs_mutex); - return r; + goto out; } - r = radeon_ib_schedule(rdev, parser.ib); + r = radeon_cs_ib_vm_chunk(rdev, &parser); if (r) { - DRM_ERROR("Failed to schedule IB !\n"); + goto out; } +out: radeon_cs_parser_fini(&parser, r); radeon_mutex_unlock(&rdev->cs_mutex); return r; |