diff options
Diffstat (limited to 'kernel/drivers/gpu/drm/nouveau/nouveau_bo.c')
| -rw-r--r-- | kernel/drivers/gpu/drm/nouveau/nouveau_bo.c | 1661 |
1 files changed, 1661 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/nouveau/nouveau_bo.c b/kernel/drivers/gpu/drm/nouveau/nouveau_bo.c new file mode 100644 index 000000000..6edcce165 --- /dev/null +++ b/kernel/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -0,0 +1,1661 @@ +/* + * Copyright 2007 Dave Airlied + * All Rights Reserved. + * + * 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 (including the next + * paragraph) 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 + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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 Airlied <airlied@linux.ie> + * Ben Skeggs <darktama@iinet.net.au> + * Jeremy Kolb <jkolb@brandeis.edu> + */ + +#include <linux/dma-mapping.h> +#include <linux/swiotlb.h> + +#include "nouveau_drm.h" +#include "nouveau_dma.h" +#include "nouveau_fence.h" + +#include "nouveau_bo.h" +#include "nouveau_ttm.h" +#include "nouveau_gem.h" + +/* + * NV10-NV40 tiling helpers + */ + +static void +nv10_bo_update_tile_region(struct drm_device *dev, struct nouveau_drm_tile *reg, + u32 addr, u32 size, u32 pitch, u32 flags) +{ + struct nouveau_drm *drm = nouveau_drm(dev); + int i = reg - drm->tile.reg; + struct nvkm_fb *pfb = nvxx_fb(&drm->device); + struct nvkm_fb_tile *tile = &pfb->tile.region[i]; + struct nvkm_engine *engine; + + nouveau_fence_unref(®->fence); + + if (tile->pitch) + pfb->tile.fini(pfb, i, tile); + + if (pitch) + pfb->tile.init(pfb, i, addr, size, pitch, flags, tile); + + pfb->tile.prog(pfb, i, tile); + + if ((engine = nvkm_engine(pfb, NVDEV_ENGINE_GR))) + engine->tile_prog(engine, i); + if ((engine = nvkm_engine(pfb, NVDEV_ENGINE_MPEG))) + engine->tile_prog(engine, i); +} + +static struct nouveau_drm_tile * +nv10_bo_get_tile_region(struct drm_device *dev, int i) +{ + struct nouveau_drm *drm = nouveau_drm(dev); + struct nouveau_drm_tile *tile = &drm->tile.reg[i]; + + spin_lock(&drm->tile.lock); + + if (!tile->used && + (!tile->fence || nouveau_fence_done(tile->fence))) + tile->used = true; + else + tile = NULL; + + spin_unlock(&drm->tile.lock); + return tile; +} + +static void +nv10_bo_put_tile_region(struct drm_device *dev, struct nouveau_drm_tile *tile, + struct fence *fence) +{ + struct nouveau_drm *drm = nouveau_drm(dev); + + if (tile) { + spin_lock(&drm->tile.lock); + tile->fence = (struct nouveau_fence *)fence_get(fence); + tile->used = false; + spin_unlock(&drm->tile.lock); + } +} + +static struct nouveau_drm_tile * +nv10_bo_set_tiling(struct drm_device *dev, u32 addr, + u32 size, u32 pitch, u32 flags) +{ + struct nouveau_drm *drm = nouveau_drm(dev); + struct nvkm_fb *pfb = nvxx_fb(&drm->device); + struct nouveau_drm_tile *tile, *found = NULL; + int i; + + for (i = 0; i < pfb->tile.regions; i++) { + tile = nv10_bo_get_tile_region(dev, i); + + if (pitch && !found) { + found = tile; + continue; + + } else if (tile && pfb->tile.region[i].pitch) { + /* Kill an unused tile region. */ + nv10_bo_update_tile_region(dev, tile, 0, 0, 0, 0); + } + + nv10_bo_put_tile_region(dev, tile, NULL); + } + + if (found) + nv10_bo_update_tile_region(dev, found, addr, size, + pitch, flags); + return found; +} + +static void +nouveau_bo_del_ttm(struct ttm_buffer_object *bo) +{ + struct nouveau_drm *drm = nouveau_bdev(bo->bdev); + struct drm_device *dev = drm->dev; + struct nouveau_bo *nvbo = nouveau_bo(bo); + + if (unlikely(nvbo->gem.filp)) + DRM_ERROR("bo %p still attached to GEM object\n", bo); + WARN_ON(nvbo->pin_refcnt > 0); + nv10_bo_put_tile_region(dev, nvbo->tile, NULL); + kfree(nvbo); +} + +static void +nouveau_bo_fixup_align(struct nouveau_bo *nvbo, u32 flags, + int *align, int *size) +{ + struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); + struct nvif_device *device = &drm->device; + + if (device->info.family < NV_DEVICE_INFO_V0_TESLA) { + if (nvbo->tile_mode) { + if (device->info.chipset >= 0x40) { + *align = 65536; + *size = roundup(*size, 64 * nvbo->tile_mode); + + } else if (device->info.chipset >= 0x30) { + *align = 32768; + *size = roundup(*size, 64 * nvbo->tile_mode); + + } else if (device->info.chipset >= 0x20) { + *align = 16384; + *size = roundup(*size, 64 * nvbo->tile_mode); + + } else if (device->info.chipset >= 0x10) { + *align = 16384; + *size = roundup(*size, 32 * nvbo->tile_mode); + } + } + } else { + *size = roundup(*size, (1 << nvbo->page_shift)); + *align = max((1 << nvbo->page_shift), *align); + } + + *size = roundup(*size, PAGE_SIZE); +} + +int +nouveau_bo_new(struct drm_device *dev, int size, int align, + uint32_t flags, uint32_t tile_mode, uint32_t tile_flags, + struct sg_table *sg, struct reservation_object *robj, + struct nouveau_bo **pnvbo) +{ + struct nouveau_drm *drm = nouveau_drm(dev); + struct nouveau_bo *nvbo; + size_t acc_size; + int ret; + int type = ttm_bo_type_device; + int lpg_shift = 12; + int max_size; + + if (drm->client.vm) + lpg_shift = drm->client.vm->mmu->lpg_shift; + max_size = INT_MAX & ~((1 << lpg_shift) - 1); + + if (size <= 0 || size > max_size) { + NV_WARN(drm, "skipped size %x\n", (u32)size); + return -EINVAL; + } + + if (sg) + type = ttm_bo_type_sg; + + nvbo = kzalloc(sizeof(struct nouveau_bo), GFP_KERNEL); + if (!nvbo) + return -ENOMEM; + INIT_LIST_HEAD(&nvbo->head); + INIT_LIST_HEAD(&nvbo->entry); + INIT_LIST_HEAD(&nvbo->vma_list); + nvbo->tile_mode = tile_mode; + nvbo->tile_flags = tile_flags; + nvbo->bo.bdev = &drm->ttm.bdev; + + if (!nv_device_is_cpu_coherent(nvxx_device(&drm->device))) + nvbo->force_coherent = flags & TTM_PL_FLAG_UNCACHED; + + nvbo->page_shift = 12; + if (drm->client.vm) { + if (!(flags & TTM_PL_FLAG_TT) && size > 256 * 1024) + nvbo->page_shift = drm->client.vm->mmu->lpg_shift; + } + + nouveau_bo_fixup_align(nvbo, flags, &align, &size); + nvbo->bo.mem.num_pages = size >> PAGE_SHIFT; + nouveau_bo_placement_set(nvbo, flags, 0); + + acc_size = ttm_bo_dma_acc_size(&drm->ttm.bdev, size, + sizeof(struct nouveau_bo)); + + ret = ttm_bo_init(&drm->ttm.bdev, &nvbo->bo, size, + type, &nvbo->placement, + align >> PAGE_SHIFT, false, NULL, acc_size, sg, + robj, nouveau_bo_del_ttm); + if (ret) { + /* ttm will call nouveau_bo_del_ttm if it fails.. */ + return ret; + } + + *pnvbo = nvbo; + return 0; +} + +static void +set_placement_list(struct ttm_place *pl, unsigned *n, uint32_t type, uint32_t flags) +{ + *n = 0; + + if (type & TTM_PL_FLAG_VRAM) + pl[(*n)++].flags = TTM_PL_FLAG_VRAM | flags; + if (type & TTM_PL_FLAG_TT) + pl[(*n)++].flags = TTM_PL_FLAG_TT | flags; + if (type & TTM_PL_FLAG_SYSTEM) + pl[(*n)++].flags = TTM_PL_FLAG_SYSTEM | flags; +} + +static void +set_placement_range(struct nouveau_bo *nvbo, uint32_t type) +{ + struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); + u32 vram_pages = drm->device.info.ram_size >> PAGE_SHIFT; + unsigned i, fpfn, lpfn; + + if (drm->device.info.family == NV_DEVICE_INFO_V0_CELSIUS && + nvbo->tile_mode && (type & TTM_PL_FLAG_VRAM) && + nvbo->bo.mem.num_pages < vram_pages / 4) { + /* + * Make sure that the color and depth buffers are handled + * by independent memory controller units. Up to a 9x + * speed up when alpha-blending and depth-test are enabled + * at the same time. + */ + if (nvbo->tile_flags & NOUVEAU_GEM_TILE_ZETA) { + fpfn = vram_pages / 2; + lpfn = ~0; + } else { + fpfn = 0; + lpfn = vram_pages / 2; + } + for (i = 0; i < nvbo->placement.num_placement; ++i) { + nvbo->placements[i].fpfn = fpfn; + nvbo->placements[i].lpfn = lpfn; + } + for (i = 0; i < nvbo->placement.num_busy_placement; ++i) { + nvbo->busy_placements[i].fpfn = fpfn; + nvbo->busy_placements[i].lpfn = lpfn; + } + } +} + +void +nouveau_bo_placement_set(struct nouveau_bo *nvbo, uint32_t type, uint32_t busy) +{ + struct ttm_placement *pl = &nvbo->placement; + uint32_t flags = (nvbo->force_coherent ? TTM_PL_FLAG_UNCACHED : + TTM_PL_MASK_CACHING) | + (nvbo->pin_refcnt ? TTM_PL_FLAG_NO_EVICT : 0); + + pl->placement = nvbo->placements; + set_placement_list(nvbo->placements, &pl->num_placement, + type, flags); + + pl->busy_placement = nvbo->busy_placements; + set_placement_list(nvbo->busy_placements, &pl->num_busy_placement, + type | busy, flags); + + set_placement_range(nvbo, type); +} + +int +nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t memtype, bool contig) +{ + struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); + struct ttm_buffer_object *bo = &nvbo->bo; + bool force = false, evict = false; + int ret; + + ret = ttm_bo_reserve(bo, false, false, false, NULL); + if (ret) + return ret; + + if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA && + memtype == TTM_PL_FLAG_VRAM && contig) { + if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG) { + if (bo->mem.mem_type == TTM_PL_VRAM) { + struct nvkm_mem *mem = bo->mem.mm_node; + if (!list_is_singular(&mem->regions)) + evict = true; + } + nvbo->tile_flags &= ~NOUVEAU_GEM_TILE_NONCONTIG; + force = true; + } + } + + if (nvbo->pin_refcnt) { + if (!(memtype & (1 << bo->mem.mem_type)) || evict) { + NV_ERROR(drm, "bo %p pinned elsewhere: " + "0x%08x vs 0x%08x\n", bo, + 1 << bo->mem.mem_type, memtype); + ret = -EBUSY; + } + nvbo->pin_refcnt++; + goto out; + } + + if (evict) { + nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_TT, 0); + ret = nouveau_bo_validate(nvbo, false, false); + if (ret) + goto out; + } + + nvbo->pin_refcnt++; + nouveau_bo_placement_set(nvbo, memtype, 0); + + /* drop pin_refcnt temporarily, so we don't trip the assertion + * in nouveau_bo_move() that makes sure we're not trying to + * move a pinned buffer + */ + nvbo->pin_refcnt--; + ret = nouveau_bo_validate(nvbo, false, false); + if (ret) + goto out; + nvbo->pin_refcnt++; + + switch (bo->mem.mem_type) { + case TTM_PL_VRAM: + drm->gem.vram_available -= bo->mem.size; + break; + case TTM_PL_TT: + drm->gem.gart_available -= bo->mem.size; + break; + default: + break; + } + +out: + if (force && ret) + nvbo->tile_flags |= NOUVEAU_GEM_TILE_NONCONTIG; + ttm_bo_unreserve(bo); + return ret; +} + +int +nouveau_bo_unpin(struct nouveau_bo *nvbo) +{ + struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); + struct ttm_buffer_object *bo = &nvbo->bo; + int ret, ref; + + ret = ttm_bo_reserve(bo, false, false, false, NULL); + if (ret) + return ret; + + ref = --nvbo->pin_refcnt; + WARN_ON_ONCE(ref < 0); + if (ref) + goto out; + + nouveau_bo_placement_set(nvbo, bo->mem.placement, 0); + + ret = nouveau_bo_validate(nvbo, false, false); + if (ret == 0) { + switch (bo->mem.mem_type) { + case TTM_PL_VRAM: + drm->gem.vram_available += bo->mem.size; + break; + case TTM_PL_TT: + drm->gem.gart_available += bo->mem.size; + break; + default: + break; + } + } + +out: + ttm_bo_unreserve(bo); + return ret; +} + +int +nouveau_bo_map(struct nouveau_bo *nvbo) +{ + int ret; + + ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL); + if (ret) + return ret; + + /* + * TTM buffers allocated using the DMA API already have a mapping, let's + * use it instead. + */ + if (!nvbo->force_coherent) + ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, + &nvbo->kmap); + + ttm_bo_unreserve(&nvbo->bo); + return ret; +} + +void +nouveau_bo_unmap(struct nouveau_bo *nvbo) +{ + if (!nvbo) + return; + + /* + * TTM buffers allocated using the DMA API already had a coherent + * mapping which we used, no need to unmap. + */ + if (!nvbo->force_coherent) + ttm_bo_kunmap(&nvbo->kmap); +} + +void +nouveau_bo_sync_for_device(struct nouveau_bo *nvbo) +{ + struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); + struct nvkm_device *device = nvxx_device(&drm->device); + struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm; + int i; + + if (!ttm_dma) + return; + + /* Don't waste time looping if the object is coherent */ + if (nvbo->force_coherent) + return; + + for (i = 0; i < ttm_dma->ttm.num_pages; i++) + dma_sync_single_for_device(nv_device_base(device), + ttm_dma->dma_address[i], PAGE_SIZE, DMA_TO_DEVICE); +} + +void +nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo) +{ + struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); + struct nvkm_device *device = nvxx_device(&drm->device); + struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm; + int i; + + if (!ttm_dma) + return; + + /* Don't waste time looping if the object is coherent */ + if (nvbo->force_coherent) + return; + + for (i = 0; i < ttm_dma->ttm.num_pages; i++) + dma_sync_single_for_cpu(nv_device_base(device), + ttm_dma->dma_address[i], PAGE_SIZE, DMA_FROM_DEVICE); +} + +int +nouveau_bo_validate(struct nouveau_bo *nvbo, bool interruptible, + bool no_wait_gpu) +{ + int ret; + + ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement, + interruptible, no_wait_gpu); + if (ret) + return ret; + + nouveau_bo_sync_for_device(nvbo); + + return 0; +} + +static inline void * +_nouveau_bo_mem_index(struct nouveau_bo *nvbo, unsigned index, void *mem, u8 sz) +{ + struct ttm_dma_tt *dma_tt; + u8 *m = mem; + + index *= sz; + + if (m) { + /* kmap'd address, return the corresponding offset */ + m += index; + } else { + /* DMA-API mapping, lookup the right address */ + dma_tt = (struct ttm_dma_tt *)nvbo->bo.ttm; + m = dma_tt->cpu_address[index / PAGE_SIZE]; + m += index % PAGE_SIZE; + } + + return m; +} +#define nouveau_bo_mem_index(o, i, m) _nouveau_bo_mem_index(o, i, m, sizeof(*m)) + +void +nouveau_bo_wr16(struct nouveau_bo *nvbo, unsigned index, u16 val) +{ + bool is_iomem; + u16 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem); + + mem = nouveau_bo_mem_index(nvbo, index, mem); + + if (is_iomem) + iowrite16_native(val, (void __force __iomem *)mem); + else + *mem = val; +} + +u32 +nouveau_bo_rd32(struct nouveau_bo *nvbo, unsigned index) +{ + bool is_iomem; + u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem); + + mem = nouveau_bo_mem_index(nvbo, index, mem); + + if (is_iomem) + return ioread32_native((void __force __iomem *)mem); + else + return *mem; +} + +void +nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val) +{ + bool is_iomem; + u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem); + + mem = nouveau_bo_mem_index(nvbo, index, mem); + + if (is_iomem) + iowrite32_native(val, (void __force __iomem *)mem); + else + *mem = val; +} + +static struct ttm_tt * +nouveau_ttm_tt_create(struct ttm_bo_device *bdev, unsigned long size, + uint32_t page_flags, struct page *dummy_read) +{ +#if __OS_HAS_AGP + struct nouveau_drm *drm = nouveau_bdev(bdev); + struct drm_device *dev = drm->dev; + + if (drm->agp.stat == ENABLED) { + return ttm_agp_tt_create(bdev, dev->agp->bridge, size, + page_flags, dummy_read); + } +#endif + + return nouveau_sgdma_create_ttm(bdev, size, page_flags, dummy_read); +} + +static int +nouveau_bo_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags) +{ + /* We'll do this from user space. */ + return 0; +} + +static int +nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type, + struct ttm_mem_type_manager *man) +{ + struct nouveau_drm *drm = nouveau_bdev(bdev); + + switch (type) { + case TTM_PL_SYSTEM: + man->flags = TTM_MEMTYPE_FLAG_MAPPABLE; + man->available_caching = TTM_PL_MASK_CACHING; + man->default_caching = TTM_PL_FLAG_CACHED; + break; + case TTM_PL_VRAM: + man->flags = TTM_MEMTYPE_FLAG_FIXED | + TTM_MEMTYPE_FLAG_MAPPABLE; + man->available_caching = TTM_PL_FLAG_UNCACHED | + TTM_PL_FLAG_WC; + man->default_caching = TTM_PL_FLAG_WC; + + if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { + /* Some BARs do not support being ioremapped WC */ + if (nvxx_bar(&drm->device)->iomap_uncached) { + man->available_caching = TTM_PL_FLAG_UNCACHED; + man->default_caching = TTM_PL_FLAG_UNCACHED; + } + + man->func = &nouveau_vram_manager; + man->io_reserve_fastpath = false; + man->use_io_reserve_lru = true; + } else { + man->func = &ttm_bo_manager_func; + } + break; + case TTM_PL_TT: + if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) + man->func = &nouveau_gart_manager; + else + if (drm->agp.stat != ENABLED) + man->func = &nv04_gart_manager; + else + man->func = &ttm_bo_manager_func; + + if (drm->agp.stat == ENABLED) { + man->flags = TTM_MEMTYPE_FLAG_MAPPABLE; + man->available_caching = TTM_PL_FLAG_UNCACHED | + TTM_PL_FLAG_WC; + man->default_caching = TTM_PL_FLAG_WC; + } else { + man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | + TTM_MEMTYPE_FLAG_CMA; + man->available_caching = TTM_PL_MASK_CACHING; + man->default_caching = TTM_PL_FLAG_CACHED; + } + + break; + default: + return -EINVAL; + } + return 0; +} + +static void +nouveau_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl) +{ + struct nouveau_bo *nvbo = nouveau_bo(bo); + + switch (bo->mem.mem_type) { + case TTM_PL_VRAM: + nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_TT, + TTM_PL_FLAG_SYSTEM); + break; + default: + nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_SYSTEM, 0); + break; + } + + *pl = nvbo->placement; +} + + +static int +nve0_bo_move_init(struct nouveau_channel *chan, u32 handle) +{ + int ret = RING_SPACE(chan, 2); + if (ret == 0) { + BEGIN_NVC0(chan, NvSubCopy, 0x0000, 1); + OUT_RING (chan, handle & 0x0000ffff); + FIRE_RING (chan); + } + return ret; +} + +static int +nve0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo, + struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) +{ + struct nvkm_mem *node = old_mem->mm_node; + int ret = RING_SPACE(chan, 10); + if (ret == 0) { + BEGIN_NVC0(chan, NvSubCopy, 0x0400, 8); + OUT_RING (chan, upper_32_bits(node->vma[0].offset)); + OUT_RING (chan, lower_32_bits(node->vma[0].offset)); + OUT_RING (chan, upper_32_bits(node->vma[1].offset)); + OUT_RING (chan, lower_32_bits(node->vma[1].offset)); + OUT_RING (chan, PAGE_SIZE); + OUT_RING (chan, PAGE_SIZE); + OUT_RING (chan, PAGE_SIZE); + OUT_RING (chan, new_mem->num_pages); + BEGIN_IMC0(chan, NvSubCopy, 0x0300, 0x0386); + } + return ret; +} + +static int +nvc0_bo_move_init(struct nouveau_channel *chan, u32 handle) +{ + int ret = RING_SPACE(chan, 2); + if (ret == 0) { + BEGIN_NVC0(chan, NvSubCopy, 0x0000, 1); + OUT_RING (chan, handle); + } + return ret; +} + +static int +nvc0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo, + struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) +{ + struct nvkm_mem *node = old_mem->mm_node; + u64 src_offset = node->vma[0].offset; + u64 dst_offset = node->vma[1].offset; + u32 page_count = new_mem->num_pages; + int ret; + + page_count = new_mem->num_pages; + while (page_count) { + int line_count = (page_count > 8191) ? 8191 : page_count; + + ret = RING_SPACE(chan, 11); + if (ret) + return ret; + + BEGIN_NVC0(chan, NvSubCopy, 0x030c, 8); + OUT_RING (chan, upper_32_bits(src_offset)); + OUT_RING (chan, lower_32_bits(src_offset)); + OUT_RING (chan, upper_32_bits(dst_offset)); + OUT_RING (chan, lower_32_bits(dst_offset)); + OUT_RING (chan, PAGE_SIZE); + OUT_RING (chan, PAGE_SIZE); + OUT_RING (chan, PAGE_SIZE); + OUT_RING (chan, line_count); + BEGIN_NVC0(chan, NvSubCopy, 0x0300, 1); + OUT_RING (chan, 0x00000110); + + page_count -= line_count; + src_offset += (PAGE_SIZE * line_count); + dst_offset += (PAGE_SIZE * line_count); + } + + return 0; +} + +static int +nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo, + struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) +{ + struct nvkm_mem *node = old_mem->mm_node; + u64 src_offset = node->vma[0].offset; + u64 dst_offset = node->vma[1].offset; + u32 page_count = new_mem->num_pages; + int ret; + + page_count = new_mem->num_pages; + while (page_count) { + int line_count = (page_count > 2047) ? 2047 : page_count; + + ret = RING_SPACE(chan, 12); + if (ret) + return ret; + + BEGIN_NVC0(chan, NvSubCopy, 0x0238, 2); + OUT_RING (chan, upper_32_bits(dst_offset)); + OUT_RING (chan, lower_32_bits(dst_offset)); + BEGIN_NVC0(chan, NvSubCopy, 0x030c, 6); + OUT_RING (chan, upper_32_bits(src_offset)); + OUT_RING (chan, lower_32_bits(src_offset)); + OUT_RING (chan, PAGE_SIZE); /* src_pitch */ + OUT_RING (chan, PAGE_SIZE); /* dst_pitch */ + OUT_RING (chan, PAGE_SIZE); /* line_length */ + OUT_RING (chan, line_count); + BEGIN_NVC0(chan, NvSubCopy, 0x0300, 1); + OUT_RING (chan, 0x00100110); + + page_count -= line_count; + src_offset += (PAGE_SIZE * line_count); + dst_offset += (PAGE_SIZE * line_count); + } + + return 0; +} + +static int +nva3_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo, + struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) +{ + struct nvkm_mem *node = old_mem->mm_node; + u64 src_offset = node->vma[0].offset; + u64 dst_offset = node->vma[1].offset; + u32 page_count = new_mem->num_pages; + int ret; + + page_count = new_mem->num_pages; + while (page_count) { + int line_count = (page_count > 8191) ? 8191 : page_count; + + ret = RING_SPACE(chan, 11); + if (ret) + return ret; + + BEGIN_NV04(chan, NvSubCopy, 0x030c, 8); + OUT_RING (chan, upper_32_bits(src_offset)); + OUT_RING (chan, lower_32_bits(src_offset)); + OUT_RING (chan, upper_32_bits(dst_offset)); + OUT_RING (chan, lower_32_bits(dst_offset)); + OUT_RING (chan, PAGE_SIZE); + OUT_RING (chan, PAGE_SIZE); + OUT_RING (chan, PAGE_SIZE); + OUT_RING (chan, line_count); + BEGIN_NV04(chan, NvSubCopy, 0x0300, 1); + OUT_RING (chan, 0x00000110); + + page_count -= line_count; + src_offset += (PAGE_SIZE * line_count); + dst_offset += (PAGE_SIZE * line_count); + } + + return 0; +} + +static int +nv98_bo_move_exec(struct nouveau_channel *chan, struct ttm_buffer_object *bo, + struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) +{ + struct nvkm_mem *node = old_mem->mm_node; + int ret = RING_SPACE(chan, 7); + if (ret == 0) { + BEGIN_NV04(chan, NvSubCopy, 0x0320, 6); + OUT_RING (chan, upper_32_bits(node->vma[0].offset)); + OUT_RING (chan, lower_32_bits(node->vma[0].offset)); + OUT_RING (chan, upper_32_bits(node->vma[1].offset)); + OUT_RING (chan, lower_32_bits(node->vma[1].offset)); + OUT_RING (chan, 0x00000000 /* COPY */); + OUT_RING (chan, new_mem->num_pages << PAGE_SHIFT); + } + return ret; +} + +static int +nv84_bo_move_exec(struct nouveau_channel *chan, struct ttm_buffer_object *bo, + struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) +{ + struct nvkm_mem *node = old_mem->mm_node; + int ret = RING_SPACE(chan, 7); + if (ret == 0) { + BEGIN_NV04(chan, NvSubCopy, 0x0304, 6); + OUT_RING (chan, new_mem->num_pages << PAGE_SHIFT); + OUT_RING (chan, upper_32_bits(node->vma[0].offset)); + OUT_RING (chan, lower_32_bits(node->vma[0].offset)); + OUT_RING (chan, upper_32_bits(node->vma[1].offset)); + OUT_RING (chan, lower_32_bits(node->vma[1].offset)); + OUT_RING (chan, 0x00000000 /* MODE_COPY, QUERY_NONE */); + } + return ret; +} + +static int +nv50_bo_move_init(struct nouveau_channel *chan, u32 handle) +{ + int ret = RING_SPACE(chan, 6); + if (ret == 0) { + BEGIN_NV04(chan, NvSubCopy, 0x0000, 1); + OUT_RING (chan, handle); + BEGIN_NV04(chan, NvSubCopy, 0x0180, 3); + OUT_RING (chan, chan->drm->ntfy.handle); + OUT_RING (chan, chan->vram.handle); + OUT_RING (chan, chan->vram.handle); + } + + return ret; +} + +static int +nv50_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo, + struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) +{ + struct nvkm_mem *node = old_mem->mm_node; + u64 length = (new_mem->num_pages << PAGE_SHIFT); + u64 src_offset = node->vma[0].offset; + u64 dst_offset = node->vma[1].offset; + int src_tiled = !!node->memtype; + int dst_tiled = !!((struct nvkm_mem *)new_mem->mm_node)->memtype; + int ret; + + while (length) { + u32 amount, stride, height; + + ret = RING_SPACE(chan, 18 + 6 * (src_tiled + dst_tiled)); + if (ret) + return ret; + + amount = min(length, (u64)(4 * 1024 * 1024)); + stride = 16 * 4; + height = amount / stride; + + if (src_tiled) { + BEGIN_NV04(chan, NvSubCopy, 0x0200, 7); + OUT_RING (chan, 0); + OUT_RING (chan, 0); + OUT_RING (chan, stride); + OUT_RING (chan, height); + OUT_RING (chan, 1); + OUT_RING (chan, 0); + OUT_RING (chan, 0); + } else { + BEGIN_NV04(chan, NvSubCopy, 0x0200, 1); + OUT_RING (chan, 1); + } + if (dst_tiled) { + BEGIN_NV04(chan, NvSubCopy, 0x021c, 7); + OUT_RING (chan, 0); + OUT_RING (chan, 0); + OUT_RING (chan, stride); + OUT_RING (chan, height); + OUT_RING (chan, 1); + OUT_RING (chan, 0); + OUT_RING (chan, 0); + } else { + BEGIN_NV04(chan, NvSubCopy, 0x021c, 1); + OUT_RING (chan, 1); + } + + BEGIN_NV04(chan, NvSubCopy, 0x0238, 2); + OUT_RING (chan, upper_32_bits(src_offset)); + OUT_RING (chan, upper_32_bits(dst_offset)); + BEGIN_NV04(chan, NvSubCopy, 0x030c, 8); + OUT_RING (chan, lower_32_bits(src_offset)); + OUT_RING (chan, lower_32_bits(dst_offset)); + OUT_RING (chan, stride); + OUT_RING (chan, stride); + OUT_RING (chan, stride); + OUT_RING (chan, height); + OUT_RING (chan, 0x00000101); + OUT_RING (chan, 0x00000000); + BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1); + OUT_RING (chan, 0); + + length -= amount; + src_offset += amount; + dst_offset += amount; + } + + return 0; +} + +static int +nv04_bo_move_init(struct nouveau_channel *chan, u32 handle) +{ + int ret = RING_SPACE(chan, 4); + if (ret == 0) { + BEGIN_NV04(chan, NvSubCopy, 0x0000, 1); + OUT_RING (chan, handle); + BEGIN_NV04(chan, NvSubCopy, 0x0180, 1); + OUT_RING (chan, chan->drm->ntfy.handle); + } + + return ret; +} + +static inline uint32_t +nouveau_bo_mem_ctxdma(struct ttm_buffer_object *bo, + struct nouveau_channel *chan, struct ttm_mem_reg *mem) +{ + if (mem->mem_type == TTM_PL_TT) + return NvDmaTT; + return chan->vram.handle; +} + +static int +nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo, + struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) +{ + u32 src_offset = old_mem->start << PAGE_SHIFT; + u32 dst_offset = new_mem->start << PAGE_SHIFT; + u32 page_count = new_mem->num_pages; + int ret; + + ret = RING_SPACE(chan, 3); + if (ret) + return ret; + + BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_DMA_SOURCE, 2); + OUT_RING (chan, nouveau_bo_mem_ctxdma(bo, chan, old_mem)); + OUT_RING (chan, nouveau_bo_mem_ctxdma(bo, chan, new_mem)); + + page_count = new_mem->num_pages; + while (page_count) { + int line_count = (page_count > 2047) ? 2047 : page_count; + + ret = RING_SPACE(chan, 11); + if (ret) + return ret; + + BEGIN_NV04(chan, NvSubCopy, + NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8); + OUT_RING (chan, src_offset); + OUT_RING (chan, dst_offset); + OUT_RING (chan, PAGE_SIZE); /* src_pitch */ + OUT_RING (chan, PAGE_SIZE); /* dst_pitch */ + OUT_RING (chan, PAGE_SIZE); /* line_length */ + OUT_RING (chan, line_count); + OUT_RING (chan, 0x00000101); + OUT_RING (chan, 0x00000000); + BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1); + OUT_RING (chan, 0); + + page_count -= line_count; + src_offset += (PAGE_SIZE * line_count); + dst_offset += (PAGE_SIZE * line_count); + } + + return 0; +} + +static int +nouveau_bo_move_prep(struct nouveau_drm *drm, struct ttm_buffer_object *bo, + struct ttm_mem_reg *mem) +{ + struct nvkm_mem *old_node = bo->mem.mm_node; + struct nvkm_mem *new_node = mem->mm_node; + u64 size = (u64)mem->num_pages << PAGE_SHIFT; + int ret; + + ret = nvkm_vm_get(drm->client.vm, size, old_node->page_shift, + NV_MEM_ACCESS_RW, &old_node->vma[0]); + if (ret) + return ret; + + ret = nvkm_vm_get(drm->client.vm, size, new_node->page_shift, + NV_MEM_ACCESS_RW, &old_node->vma[1]); + if (ret) { + nvkm_vm_put(&old_node->vma[0]); + return ret; + } + + nvkm_vm_map(&old_node->vma[0], old_node); + nvkm_vm_map(&old_node->vma[1], new_node); + return 0; +} + +static int +nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict, bool intr, + bool no_wait_gpu, struct ttm_mem_reg *new_mem) +{ + struct nouveau_drm *drm = nouveau_bdev(bo->bdev); + struct nouveau_channel *chan = drm->ttm.chan; + struct nouveau_cli *cli = (void *)nvif_client(&chan->device->base); + struct nouveau_fence *fence; + int ret; + + /* create temporary vmas for the transfer and attach them to the + * old nvkm_mem node, these will get cleaned up after ttm has + * destroyed the ttm_mem_reg + */ + if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { + ret = nouveau_bo_move_prep(drm, bo, new_mem); + if (ret) + return ret; + } + + mutex_lock_nested(&cli->mutex, SINGLE_DEPTH_NESTING); + ret = nouveau_fence_sync(nouveau_bo(bo), chan, true, intr); + if (ret == 0) { + ret = drm->ttm.move(chan, bo, &bo->mem, new_mem); + if (ret == 0) { + ret = nouveau_fence_new(chan, false, &fence); + if (ret == 0) { + ret = ttm_bo_move_accel_cleanup(bo, + &fence->base, + evict, + no_wait_gpu, + new_mem); + nouveau_fence_unref(&fence); + } + } + } + mutex_unlock(&cli->mutex); + return ret; +} + +void +nouveau_bo_move_init(struct nouveau_drm *drm) +{ + static const struct { + const char *name; + int engine; + u32 oclass; + int (*exec)(struct nouveau_channel *, + struct ttm_buffer_object *, + struct ttm_mem_reg *, struct ttm_mem_reg *); + int (*init)(struct nouveau_channel *, u32 handle); + } _methods[] = { + { "COPY", 4, 0xb0b5, nve0_bo_move_copy, nve0_bo_move_init }, + { "GRCE", 0, 0xb0b5, nve0_bo_move_copy, nvc0_bo_move_init }, + { "COPY", 4, 0xa0b5, nve0_bo_move_copy, nve0_bo_move_init }, + { "GRCE", 0, 0xa0b5, nve0_bo_move_copy, nvc0_bo_move_init }, + { "COPY1", 5, 0x90b8, nvc0_bo_move_copy, nvc0_bo_move_init }, + { "COPY0", 4, 0x90b5, nvc0_bo_move_copy, nvc0_bo_move_init }, + { "COPY", 0, 0x85b5, nva3_bo_move_copy, nv50_bo_move_init }, + { "CRYPT", 0, 0x74c1, nv84_bo_move_exec, nv50_bo_move_init }, + { "M2MF", 0, 0x9039, nvc0_bo_move_m2mf, nvc0_bo_move_init }, + { "M2MF", 0, 0x5039, nv50_bo_move_m2mf, nv50_bo_move_init }, + { "M2MF", 0, 0x0039, nv04_bo_move_m2mf, nv04_bo_move_init }, + {}, + { "CRYPT", 0, 0x88b4, nv98_bo_move_exec, nv50_bo_move_init }, + }, *mthd = _methods; + const char *name = "CPU"; + int ret; + + do { + struct nouveau_channel *chan; + + if (mthd->engine) + chan = drm->cechan; + else + chan = drm->channel; + if (chan == NULL) + continue; + + ret = nvif_object_init(chan->object, NULL, + mthd->oclass | (mthd->engine << 16), + mthd->oclass, NULL, 0, + &drm->ttm.copy); + if (ret == 0) { + ret = mthd->init(chan, drm->ttm.copy.handle); + if (ret) { + nvif_object_fini(&drm->ttm.copy); + continue; + } + + drm->ttm.move = mthd->exec; + drm->ttm.chan = chan; + name = mthd->name; + break; + } + } while ((++mthd)->exec); + + NV_INFO(drm, "MM: using %s for buffer copies\n", name); +} + +static int +nouveau_bo_move_flipd(struct ttm_buffer_object *bo, bool evict, bool intr, + bool no_wait_gpu, struct ttm_mem_reg *new_mem) +{ + struct ttm_place placement_memtype = { + .fpfn = 0, + .lpfn = 0, + .flags = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING + }; + struct ttm_placement placement; + struct ttm_mem_reg tmp_mem; + int ret; + + placement.num_placement = placement.num_busy_placement = 1; + placement.placement = placement.busy_placement = &placement_memtype; + + tmp_mem = *new_mem; + tmp_mem.mm_node = NULL; + ret = ttm_bo_mem_space(bo, &placement, &tmp_mem, intr, no_wait_gpu); + if (ret) + return ret; + + ret = ttm_tt_bind(bo->ttm, &tmp_mem); + if (ret) + goto out; + + ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_gpu, &tmp_mem); + if (ret) + goto out; + + ret = ttm_bo_move_ttm(bo, true, no_wait_gpu, new_mem); +out: + ttm_bo_mem_put(bo, &tmp_mem); + return ret; +} + +static int +nouveau_bo_move_flips(struct ttm_buffer_object *bo, bool evict, bool intr, + bool no_wait_gpu, struct ttm_mem_reg *new_mem) +{ + struct ttm_place placement_memtype = { + .fpfn = 0, + .lpfn = 0, + .flags = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING + }; + struct ttm_placement placement; + struct ttm_mem_reg tmp_mem; + int ret; + + placement.num_placement = placement.num_busy_placement = 1; + placement.placement = placement.busy_placement = &placement_memtype; + + tmp_mem = *new_mem; + tmp_mem.mm_node = NULL; + ret = ttm_bo_mem_space(bo, &placement, &tmp_mem, intr, no_wait_gpu); + if (ret) + return ret; + + ret = ttm_bo_move_ttm(bo, true, no_wait_gpu, &tmp_mem); + if (ret) + goto out; + + ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_gpu, new_mem); + if (ret) + goto out; + +out: + ttm_bo_mem_put(bo, &tmp_mem); + return ret; +} + +static void +nouveau_bo_move_ntfy(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_mem) +{ + struct nouveau_bo *nvbo = nouveau_bo(bo); + struct nvkm_vma *vma; + + /* ttm can now (stupidly) pass the driver bos it didn't create... */ + if (bo->destroy != nouveau_bo_del_ttm) + return; + + list_for_each_entry(vma, &nvbo->vma_list, head) { + if (new_mem && new_mem->mem_type != TTM_PL_SYSTEM && + (new_mem->mem_type == TTM_PL_VRAM || + nvbo->page_shift != vma->vm->mmu->lpg_shift)) { + nvkm_vm_map(vma, new_mem->mm_node); + } else { + nvkm_vm_unmap(vma); + } + } +} + +static int +nouveau_bo_vm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_mem, + struct nouveau_drm_tile **new_tile) +{ + struct nouveau_drm *drm = nouveau_bdev(bo->bdev); + struct drm_device *dev = drm->dev; + struct nouveau_bo *nvbo = nouveau_bo(bo); + u64 offset = new_mem->start << PAGE_SHIFT; + + *new_tile = NULL; + if (new_mem->mem_type != TTM_PL_VRAM) + return 0; + + if (drm->device.info.family >= NV_DEVICE_INFO_V0_CELSIUS) { + *new_tile = nv10_bo_set_tiling(dev, offset, new_mem->size, + nvbo->tile_mode, + nvbo->tile_flags); + } + + return 0; +} + +static void +nouveau_bo_vm_cleanup(struct ttm_buffer_object *bo, + struct nouveau_drm_tile *new_tile, + struct nouveau_drm_tile **old_tile) +{ + struct nouveau_drm *drm = nouveau_bdev(bo->bdev); + struct drm_device *dev = drm->dev; + struct fence *fence = reservation_object_get_excl(bo->resv); + + nv10_bo_put_tile_region(dev, *old_tile, fence); + *old_tile = new_tile; +} + +static int +nouveau_bo_move(struct ttm_buffer_object *bo, bool evict, bool intr, + bool no_wait_gpu, struct ttm_mem_reg *new_mem) +{ + struct nouveau_drm *drm = nouveau_bdev(bo->bdev); + struct nouveau_bo *nvbo = nouveau_bo(bo); + struct ttm_mem_reg *old_mem = &bo->mem; + struct nouveau_drm_tile *new_tile = NULL; + int ret = 0; + + if (nvbo->pin_refcnt) + NV_WARN(drm, "Moving pinned object %p!\n", nvbo); + + if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) { + ret = nouveau_bo_vm_bind(bo, new_mem, &new_tile); + if (ret) + return ret; + } + + /* Fake bo copy. */ + if (old_mem->mem_type == TTM_PL_SYSTEM && !bo->ttm) { + BUG_ON(bo->mem.mm_node != NULL); + bo->mem = *new_mem; + new_mem->mm_node = NULL; + goto out; + } + + /* Hardware assisted copy. */ + if (drm->ttm.move) { + if (new_mem->mem_type == TTM_PL_SYSTEM) + ret = nouveau_bo_move_flipd(bo, evict, intr, + no_wait_gpu, new_mem); + else if (old_mem->mem_type == TTM_PL_SYSTEM) + ret = nouveau_bo_move_flips(bo, evict, intr, + no_wait_gpu, new_mem); + else + ret = nouveau_bo_move_m2mf(bo, evict, intr, + no_wait_gpu, new_mem); + if (!ret) + goto out; + } + + /* Fallback to software copy. */ + ret = ttm_bo_wait(bo, true, intr, no_wait_gpu); + if (ret == 0) + ret = ttm_bo_move_memcpy(bo, evict, no_wait_gpu, new_mem); + +out: + if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) { + if (ret) + nouveau_bo_vm_cleanup(bo, NULL, &new_tile); + else + nouveau_bo_vm_cleanup(bo, new_tile, &nvbo->tile); + } + + return ret; +} + +static int +nouveau_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp) +{ + struct nouveau_bo *nvbo = nouveau_bo(bo); + + return drm_vma_node_verify_access(&nvbo->gem.vma_node, filp); +} + +static int +nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem) +{ + struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type]; + struct nouveau_drm *drm = nouveau_bdev(bdev); + struct nvkm_mem *node = mem->mm_node; + int ret; + + mem->bus.addr = NULL; + mem->bus.offset = 0; + mem->bus.size = mem->num_pages << PAGE_SHIFT; + mem->bus.base = 0; + mem->bus.is_iomem = false; + if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE)) + return -EINVAL; + switch (mem->mem_type) { + case TTM_PL_SYSTEM: + /* System memory */ + return 0; + case TTM_PL_TT: +#if __OS_HAS_AGP + if (drm->agp.stat == ENABLED) { + mem->bus.offset = mem->start << PAGE_SHIFT; + mem->bus.base = drm->agp.base; + mem->bus.is_iomem = !drm->dev->agp->cant_use_aperture; + } +#endif + if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA || !node->memtype) + /* untiled */ + break; + /* fallthrough, tiled memory */ + case TTM_PL_VRAM: + mem->bus.offset = mem->start << PAGE_SHIFT; + mem->bus.base = nv_device_resource_start(nvxx_device(&drm->device), 1); + mem->bus.is_iomem = true; + if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { + struct nvkm_bar *bar = nvxx_bar(&drm->device); + + ret = bar->umap(bar, node, NV_MEM_ACCESS_RW, + &node->bar_vma); + if (ret) + return ret; + + mem->bus.offset = node->bar_vma.offset; + } + break; + default: + return -EINVAL; + } + return 0; +} + +static void +nouveau_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem) +{ + struct nouveau_drm *drm = nouveau_bdev(bdev); + struct nvkm_bar *bar = nvxx_bar(&drm->device); + struct nvkm_mem *node = mem->mm_node; + + if (!node->bar_vma.node) + return; + + bar->unmap(bar, &node->bar_vma); +} + +static int +nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo) +{ + struct nouveau_drm *drm = nouveau_bdev(bo->bdev); + struct nouveau_bo *nvbo = nouveau_bo(bo); + struct nvif_device *device = &drm->device; + u32 mappable = nv_device_resource_len(nvxx_device(device), 1) >> PAGE_SHIFT; + int i, ret; + + /* as long as the bo isn't in vram, and isn't tiled, we've got + * nothing to do here. + */ + if (bo->mem.mem_type != TTM_PL_VRAM) { + if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA || + !nouveau_bo_tile_layout(nvbo)) + return 0; + + if (bo->mem.mem_type == TTM_PL_SYSTEM) { + nouveau_bo_placement_set(nvbo, TTM_PL_TT, 0); + + ret = nouveau_bo_validate(nvbo, false, false); + if (ret) + return ret; + } + return 0; + } + + /* make sure bo is in mappable vram */ + if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA || + bo->mem.start + bo->mem.num_pages < mappable) + return 0; + + for (i = 0; i < nvbo->placement.num_placement; ++i) { + nvbo->placements[i].fpfn = 0; + nvbo->placements[i].lpfn = mappable; + } + + for (i = 0; i < nvbo->placement.num_busy_placement; ++i) { + nvbo->busy_placements[i].fpfn = 0; + nvbo->busy_placements[i].lpfn = mappable; + } + + nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_VRAM, 0); + return nouveau_bo_validate(nvbo, false, false); +} + +static int +nouveau_ttm_tt_populate(struct ttm_tt *ttm) +{ + struct ttm_dma_tt *ttm_dma = (void *)ttm; + struct nouveau_drm *drm; + struct nvkm_device *device; + struct drm_device *dev; + struct device *pdev; + unsigned i; + int r; + bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG); + + if (ttm->state != tt_unpopulated) + return 0; + + if (slave && ttm->sg) { + /* make userspace faulting work */ + drm_prime_sg_to_page_addr_arrays(ttm->sg, ttm->pages, + ttm_dma->dma_address, ttm->num_pages); + ttm->state = tt_unbound; + return 0; + } + + drm = nouveau_bdev(ttm->bdev); + device = nvxx_device(&drm->device); + dev = drm->dev; + pdev = nv_device_base(device); + + /* + * Objects matching this condition have been marked as force_coherent, + * so use the DMA API for them. + */ + if (!nv_device_is_cpu_coherent(device) && + ttm->caching_state == tt_uncached) + return ttm_dma_populate(ttm_dma, dev->dev); + +#if __OS_HAS_AGP + if (drm->agp.stat == ENABLED) { + return ttm_agp_tt_populate(ttm); + } +#endif + +#ifdef CONFIG_SWIOTLB + if (swiotlb_nr_tbl()) { + return ttm_dma_populate((void *)ttm, dev->dev); + } +#endif + + r = ttm_pool_populate(ttm); + if (r) { + return r; + } + + for (i = 0; i < ttm->num_pages; i++) { + dma_addr_t addr; + + addr = dma_map_page(pdev, ttm->pages[i], 0, PAGE_SIZE, + DMA_BIDIRECTIONAL); + + if (dma_mapping_error(pdev, addr)) { + while (--i) { + dma_unmap_page(pdev, ttm_dma->dma_address[i], + PAGE_SIZE, DMA_BIDIRECTIONAL); + ttm_dma->dma_address[i] = 0; + } + ttm_pool_unpopulate(ttm); + return -EFAULT; + } + + ttm_dma->dma_address[i] = addr; + } + return 0; +} + +static void +nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm) +{ + struct ttm_dma_tt *ttm_dma = (void *)ttm; + struct nouveau_drm *drm; + struct nvkm_device *device; + struct drm_device *dev; + struct device *pdev; + unsigned i; + bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG); + + if (slave) + return; + + drm = nouveau_bdev(ttm->bdev); + device = nvxx_device(&drm->device); + dev = drm->dev; + pdev = nv_device_base(device); + + /* + * Objects matching this condition have been marked as force_coherent, + * so use the DMA API for them. + */ + if (!nv_device_is_cpu_coherent(device) && + ttm->caching_state == tt_uncached) { + ttm_dma_unpopulate(ttm_dma, dev->dev); + return; + } + +#if __OS_HAS_AGP + if (drm->agp.stat == ENABLED) { + ttm_agp_tt_unpopulate(ttm); + return; + } +#endif + +#ifdef CONFIG_SWIOTLB + if (swiotlb_nr_tbl()) { + ttm_dma_unpopulate((void *)ttm, dev->dev); + return; + } +#endif + + for (i = 0; i < ttm->num_pages; i++) { + if (ttm_dma->dma_address[i]) { + dma_unmap_page(pdev, ttm_dma->dma_address[i], PAGE_SIZE, + DMA_BIDIRECTIONAL); + } + } + + ttm_pool_unpopulate(ttm); +} + +void +nouveau_bo_fence(struct nouveau_bo *nvbo, struct nouveau_fence *fence, bool exclusive) +{ + struct reservation_object *resv = nvbo->bo.resv; + + if (exclusive) + reservation_object_add_excl_fence(resv, &fence->base); + else if (fence) + reservation_object_add_shared_fence(resv, &fence->base); +} + +struct ttm_bo_driver nouveau_bo_driver = { + .ttm_tt_create = &nouveau_ttm_tt_create, + .ttm_tt_populate = &nouveau_ttm_tt_populate, + .ttm_tt_unpopulate = &nouveau_ttm_tt_unpopulate, + .invalidate_caches = nouveau_bo_invalidate_caches, + .init_mem_type = nouveau_bo_init_mem_type, + .evict_flags = nouveau_bo_evict_flags, + .move_notify = nouveau_bo_move_ntfy, + .move = nouveau_bo_move, + .verify_access = nouveau_bo_verify_access, + .fault_reserve_notify = &nouveau_ttm_fault_reserve_notify, + .io_mem_reserve = &nouveau_ttm_io_mem_reserve, + .io_mem_free = &nouveau_ttm_io_mem_free, +}; + +struct nvkm_vma * +nouveau_bo_vma_find(struct nouveau_bo *nvbo, struct nvkm_vm *vm) +{ + struct nvkm_vma *vma; + list_for_each_entry(vma, &nvbo->vma_list, head) { + if (vma->vm == vm) + return vma; + } + + return NULL; +} + +int +nouveau_bo_vma_add(struct nouveau_bo *nvbo, struct nvkm_vm *vm, + struct nvkm_vma *vma) +{ + const u32 size = nvbo->bo.mem.num_pages << PAGE_SHIFT; + int ret; + + ret = nvkm_vm_get(vm, size, nvbo->page_shift, + NV_MEM_ACCESS_RW, vma); + if (ret) + return ret; + + if ( nvbo->bo.mem.mem_type != TTM_PL_SYSTEM && + (nvbo->bo.mem.mem_type == TTM_PL_VRAM || + nvbo->page_shift != vma->vm->mmu->lpg_shift)) + nvkm_vm_map(vma, nvbo->bo.mem.mm_node); + + list_add_tail(&vma->head, &nvbo->vma_list); + vma->refcount = 1; + return 0; +} + +void +nouveau_bo_vma_del(struct nouveau_bo *nvbo, struct nvkm_vma *vma) +{ + if (vma->node) { + if (nvbo->bo.mem.mem_type != TTM_PL_SYSTEM) + nvkm_vm_unmap(vma); + nvkm_vm_put(vma); + list_del(&vma->head); + } +} |