mirror of https://gitee.com/openkylin/linux.git
927 lines
23 KiB
C
927 lines
23 KiB
C
/*
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* Copyright (C) 2008 Ben Skeggs.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include <subdev/fb.h>
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#include "nouveau_drm.h"
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#include "nouveau_dma.h"
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#include "nouveau_fence.h"
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#include "nouveau_abi16.h"
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#include "nouveau_ttm.h"
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#include "nouveau_gem.h"
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void
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nouveau_gem_object_del(struct drm_gem_object *gem)
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{
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struct nouveau_bo *nvbo = nouveau_gem_object(gem);
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struct ttm_buffer_object *bo = &nvbo->bo;
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if (gem->import_attach)
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drm_prime_gem_destroy(gem, nvbo->bo.sg);
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drm_gem_object_release(gem);
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/* reset filp so nouveau_bo_del_ttm() can test for it */
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gem->filp = NULL;
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ttm_bo_unref(&bo);
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}
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int
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nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
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{
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struct nouveau_cli *cli = nouveau_cli(file_priv);
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struct nouveau_bo *nvbo = nouveau_gem_object(gem);
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struct nouveau_vma *vma;
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int ret;
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if (!cli->base.vm)
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return 0;
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ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
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if (ret)
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return ret;
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vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
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if (!vma) {
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vma = kzalloc(sizeof(*vma), GFP_KERNEL);
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if (!vma) {
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ret = -ENOMEM;
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goto out;
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}
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ret = nouveau_bo_vma_add(nvbo, cli->base.vm, vma);
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if (ret) {
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kfree(vma);
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goto out;
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}
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} else {
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vma->refcount++;
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}
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out:
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ttm_bo_unreserve(&nvbo->bo);
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return ret;
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}
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static void
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nouveau_gem_object_delete(void *data)
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{
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struct nouveau_vma *vma = data;
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nouveau_vm_unmap(vma);
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nouveau_vm_put(vma);
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kfree(vma);
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}
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static void
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nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nouveau_vma *vma)
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{
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const bool mapped = nvbo->bo.mem.mem_type != TTM_PL_SYSTEM;
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struct nouveau_fence *fence = NULL;
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list_del(&vma->head);
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if (mapped) {
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spin_lock(&nvbo->bo.bdev->fence_lock);
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fence = nouveau_fence_ref(nvbo->bo.sync_obj);
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spin_unlock(&nvbo->bo.bdev->fence_lock);
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}
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if (fence) {
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nouveau_fence_work(fence, nouveau_gem_object_delete, vma);
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} else {
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if (mapped)
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nouveau_vm_unmap(vma);
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nouveau_vm_put(vma);
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kfree(vma);
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}
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nouveau_fence_unref(&fence);
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}
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void
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nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
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{
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struct nouveau_cli *cli = nouveau_cli(file_priv);
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struct nouveau_bo *nvbo = nouveau_gem_object(gem);
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struct nouveau_vma *vma;
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int ret;
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if (!cli->base.vm)
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return;
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ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
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if (ret)
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return;
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vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
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if (vma) {
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if (--vma->refcount == 0)
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nouveau_gem_object_unmap(nvbo, vma);
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}
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ttm_bo_unreserve(&nvbo->bo);
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}
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int
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nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain,
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uint32_t tile_mode, uint32_t tile_flags,
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struct nouveau_bo **pnvbo)
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{
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struct nouveau_drm *drm = nouveau_drm(dev);
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struct nouveau_bo *nvbo;
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u32 flags = 0;
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int ret;
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if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
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flags |= TTM_PL_FLAG_VRAM;
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if (domain & NOUVEAU_GEM_DOMAIN_GART)
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flags |= TTM_PL_FLAG_TT;
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if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU)
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flags |= TTM_PL_FLAG_SYSTEM;
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ret = nouveau_bo_new(dev, size, align, flags, tile_mode,
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tile_flags, NULL, pnvbo);
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if (ret)
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return ret;
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nvbo = *pnvbo;
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/* we restrict allowed domains on nv50+ to only the types
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* that were requested at creation time. not possibly on
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* earlier chips without busting the ABI.
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*/
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nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
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NOUVEAU_GEM_DOMAIN_GART;
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if (nv_device(drm->device)->card_type >= NV_50)
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nvbo->valid_domains &= domain;
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/* Initialize the embedded gem-object. We return a single gem-reference
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* to the caller, instead of a normal nouveau_bo ttm reference. */
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ret = drm_gem_object_init(dev, &nvbo->gem, nvbo->bo.mem.size);
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if (ret) {
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nouveau_bo_ref(NULL, pnvbo);
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return -ENOMEM;
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}
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nvbo->bo.persistent_swap_storage = nvbo->gem.filp;
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return 0;
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}
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static int
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nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
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struct drm_nouveau_gem_info *rep)
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{
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struct nouveau_cli *cli = nouveau_cli(file_priv);
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struct nouveau_bo *nvbo = nouveau_gem_object(gem);
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struct nouveau_vma *vma;
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if (nvbo->bo.mem.mem_type == TTM_PL_TT)
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rep->domain = NOUVEAU_GEM_DOMAIN_GART;
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else
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rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
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rep->offset = nvbo->bo.offset;
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if (cli->base.vm) {
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vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
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if (!vma)
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return -EINVAL;
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rep->offset = vma->offset;
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}
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rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
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rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node);
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rep->tile_mode = nvbo->tile_mode;
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rep->tile_flags = nvbo->tile_flags;
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return 0;
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}
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int
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nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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struct nouveau_drm *drm = nouveau_drm(dev);
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struct nouveau_cli *cli = nouveau_cli(file_priv);
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struct nouveau_fb *pfb = nouveau_fb(drm->device);
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struct drm_nouveau_gem_new *req = data;
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struct nouveau_bo *nvbo = NULL;
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int ret = 0;
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if (!pfb->memtype_valid(pfb, req->info.tile_flags)) {
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NV_ERROR(cli, "bad page flags: 0x%08x\n", req->info.tile_flags);
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return -EINVAL;
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}
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ret = nouveau_gem_new(dev, req->info.size, req->align,
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req->info.domain, req->info.tile_mode,
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req->info.tile_flags, &nvbo);
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if (ret)
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return ret;
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ret = drm_gem_handle_create(file_priv, &nvbo->gem, &req->info.handle);
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if (ret == 0) {
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ret = nouveau_gem_info(file_priv, &nvbo->gem, &req->info);
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if (ret)
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drm_gem_handle_delete(file_priv, req->info.handle);
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}
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/* drop reference from allocate - handle holds it now */
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drm_gem_object_unreference_unlocked(&nvbo->gem);
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return ret;
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}
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static int
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nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
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uint32_t write_domains, uint32_t valid_domains)
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{
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struct nouveau_bo *nvbo = nouveau_gem_object(gem);
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struct ttm_buffer_object *bo = &nvbo->bo;
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uint32_t domains = valid_domains & nvbo->valid_domains &
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(write_domains ? write_domains : read_domains);
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uint32_t pref_flags = 0, valid_flags = 0;
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if (!domains)
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return -EINVAL;
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if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
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valid_flags |= TTM_PL_FLAG_VRAM;
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if (valid_domains & NOUVEAU_GEM_DOMAIN_GART)
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valid_flags |= TTM_PL_FLAG_TT;
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if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
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bo->mem.mem_type == TTM_PL_VRAM)
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pref_flags |= TTM_PL_FLAG_VRAM;
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else if ((domains & NOUVEAU_GEM_DOMAIN_GART) &&
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bo->mem.mem_type == TTM_PL_TT)
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pref_flags |= TTM_PL_FLAG_TT;
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else if (domains & NOUVEAU_GEM_DOMAIN_VRAM)
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pref_flags |= TTM_PL_FLAG_VRAM;
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else
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pref_flags |= TTM_PL_FLAG_TT;
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nouveau_bo_placement_set(nvbo, pref_flags, valid_flags);
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return 0;
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}
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struct validate_op {
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struct list_head vram_list;
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struct list_head gart_list;
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struct list_head both_list;
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struct ww_acquire_ctx ticket;
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};
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static void
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validate_fini_list(struct list_head *list, struct nouveau_fence *fence,
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struct ww_acquire_ctx *ticket)
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{
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struct list_head *entry, *tmp;
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struct nouveau_bo *nvbo;
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list_for_each_safe(entry, tmp, list) {
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nvbo = list_entry(entry, struct nouveau_bo, entry);
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if (likely(fence))
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nouveau_bo_fence(nvbo, fence);
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if (unlikely(nvbo->validate_mapped)) {
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ttm_bo_kunmap(&nvbo->kmap);
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nvbo->validate_mapped = false;
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}
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list_del(&nvbo->entry);
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nvbo->reserved_by = NULL;
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ttm_bo_unreserve_ticket(&nvbo->bo, ticket);
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drm_gem_object_unreference_unlocked(&nvbo->gem);
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}
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}
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static void
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validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence)
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{
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validate_fini_list(&op->vram_list, fence, &op->ticket);
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validate_fini_list(&op->gart_list, fence, &op->ticket);
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validate_fini_list(&op->both_list, fence, &op->ticket);
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}
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static void
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validate_fini(struct validate_op *op, struct nouveau_fence *fence)
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{
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validate_fini_no_ticket(op, fence);
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ww_acquire_fini(&op->ticket);
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}
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static int
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validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
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struct drm_nouveau_gem_pushbuf_bo *pbbo,
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int nr_buffers, struct validate_op *op)
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{
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struct nouveau_cli *cli = nouveau_cli(file_priv);
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struct drm_device *dev = chan->drm->dev;
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int trycnt = 0;
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int ret, i;
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struct nouveau_bo *res_bo = NULL;
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ww_acquire_init(&op->ticket, &reservation_ww_class);
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retry:
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if (++trycnt > 100000) {
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NV_ERROR(cli, "%s failed and gave up.\n", __func__);
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return -EINVAL;
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}
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for (i = 0; i < nr_buffers; i++) {
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struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i];
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struct drm_gem_object *gem;
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struct nouveau_bo *nvbo;
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gem = drm_gem_object_lookup(dev, file_priv, b->handle);
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if (!gem) {
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NV_ERROR(cli, "Unknown handle 0x%08x\n", b->handle);
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ww_acquire_done(&op->ticket);
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validate_fini(op, NULL);
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return -ENOENT;
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}
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nvbo = nouveau_gem_object(gem);
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if (nvbo == res_bo) {
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res_bo = NULL;
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drm_gem_object_unreference_unlocked(gem);
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continue;
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}
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if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
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NV_ERROR(cli, "multiple instances of buffer %d on "
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"validation list\n", b->handle);
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drm_gem_object_unreference_unlocked(gem);
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ww_acquire_done(&op->ticket);
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validate_fini(op, NULL);
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return -EINVAL;
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}
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ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket);
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if (ret) {
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validate_fini_no_ticket(op, NULL);
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if (unlikely(ret == -EDEADLK)) {
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ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
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&op->ticket);
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if (!ret)
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res_bo = nvbo;
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}
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if (unlikely(ret)) {
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ww_acquire_done(&op->ticket);
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ww_acquire_fini(&op->ticket);
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drm_gem_object_unreference_unlocked(gem);
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if (ret != -ERESTARTSYS)
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NV_ERROR(cli, "fail reserve\n");
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return ret;
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}
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}
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|
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b->user_priv = (uint64_t)(unsigned long)nvbo;
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nvbo->reserved_by = file_priv;
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nvbo->pbbo_index = i;
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if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
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(b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
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list_add_tail(&nvbo->entry, &op->both_list);
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else
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if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
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list_add_tail(&nvbo->entry, &op->vram_list);
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else
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if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
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list_add_tail(&nvbo->entry, &op->gart_list);
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else {
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NV_ERROR(cli, "invalid valid domains: 0x%08x\n",
|
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b->valid_domains);
|
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list_add_tail(&nvbo->entry, &op->both_list);
|
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ww_acquire_done(&op->ticket);
|
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validate_fini(op, NULL);
|
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return -EINVAL;
|
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}
|
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if (nvbo == res_bo)
|
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goto retry;
|
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}
|
|
|
|
ww_acquire_done(&op->ticket);
|
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return 0;
|
|
}
|
|
|
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static int
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validate_sync(struct nouveau_channel *chan, struct nouveau_bo *nvbo)
|
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{
|
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struct nouveau_fence *fence = NULL;
|
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int ret = 0;
|
|
|
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spin_lock(&nvbo->bo.bdev->fence_lock);
|
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fence = nouveau_fence_ref(nvbo->bo.sync_obj);
|
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spin_unlock(&nvbo->bo.bdev->fence_lock);
|
|
|
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if (fence) {
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ret = nouveau_fence_sync(fence, chan);
|
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nouveau_fence_unref(&fence);
|
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}
|
|
|
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return ret;
|
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}
|
|
|
|
static int
|
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validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
|
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struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo,
|
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uint64_t user_pbbo_ptr)
|
|
{
|
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struct nouveau_drm *drm = chan->drm;
|
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struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
|
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(void __force __user *)(uintptr_t)user_pbbo_ptr;
|
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struct nouveau_bo *nvbo;
|
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int ret, relocs = 0;
|
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|
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list_for_each_entry(nvbo, list, entry) {
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struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
|
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|
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ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains,
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b->write_domains,
|
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b->valid_domains);
|
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if (unlikely(ret)) {
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NV_ERROR(cli, "fail set_domain\n");
|
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return ret;
|
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}
|
|
|
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ret = nouveau_bo_validate(nvbo, true, false);
|
|
if (unlikely(ret)) {
|
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if (ret != -ERESTARTSYS)
|
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NV_ERROR(cli, "fail ttm_validate\n");
|
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return ret;
|
|
}
|
|
|
|
ret = validate_sync(chan, nvbo);
|
|
if (unlikely(ret)) {
|
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NV_ERROR(cli, "fail post-validate sync\n");
|
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return ret;
|
|
}
|
|
|
|
if (nv_device(drm->device)->card_type < NV_50) {
|
|
if (nvbo->bo.offset == b->presumed.offset &&
|
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((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
|
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b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
|
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(nvbo->bo.mem.mem_type == TTM_PL_TT &&
|
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b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART)))
|
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continue;
|
|
|
|
if (nvbo->bo.mem.mem_type == TTM_PL_TT)
|
|
b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART;
|
|
else
|
|
b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM;
|
|
b->presumed.offset = nvbo->bo.offset;
|
|
b->presumed.valid = 0;
|
|
relocs++;
|
|
|
|
if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed,
|
|
&b->presumed, sizeof(b->presumed)))
|
|
return -EFAULT;
|
|
}
|
|
}
|
|
|
|
return relocs;
|
|
}
|
|
|
|
static int
|
|
nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
|
|
struct drm_file *file_priv,
|
|
struct drm_nouveau_gem_pushbuf_bo *pbbo,
|
|
uint64_t user_buffers, int nr_buffers,
|
|
struct validate_op *op, int *apply_relocs)
|
|
{
|
|
struct nouveau_cli *cli = nouveau_cli(file_priv);
|
|
int ret, relocs = 0;
|
|
|
|
INIT_LIST_HEAD(&op->vram_list);
|
|
INIT_LIST_HEAD(&op->gart_list);
|
|
INIT_LIST_HEAD(&op->both_list);
|
|
|
|
if (nr_buffers == 0)
|
|
return 0;
|
|
|
|
ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
|
|
if (unlikely(ret)) {
|
|
if (ret != -ERESTARTSYS)
|
|
NV_ERROR(cli, "validate_init\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = validate_list(chan, cli, &op->vram_list, pbbo, user_buffers);
|
|
if (unlikely(ret < 0)) {
|
|
if (ret != -ERESTARTSYS)
|
|
NV_ERROR(cli, "validate vram_list\n");
|
|
validate_fini(op, NULL);
|
|
return ret;
|
|
}
|
|
relocs += ret;
|
|
|
|
ret = validate_list(chan, cli, &op->gart_list, pbbo, user_buffers);
|
|
if (unlikely(ret < 0)) {
|
|
if (ret != -ERESTARTSYS)
|
|
NV_ERROR(cli, "validate gart_list\n");
|
|
validate_fini(op, NULL);
|
|
return ret;
|
|
}
|
|
relocs += ret;
|
|
|
|
ret = validate_list(chan, cli, &op->both_list, pbbo, user_buffers);
|
|
if (unlikely(ret < 0)) {
|
|
if (ret != -ERESTARTSYS)
|
|
NV_ERROR(cli, "validate both_list\n");
|
|
validate_fini(op, NULL);
|
|
return ret;
|
|
}
|
|
relocs += ret;
|
|
|
|
*apply_relocs = relocs;
|
|
return 0;
|
|
}
|
|
|
|
static inline void
|
|
u_free(void *addr)
|
|
{
|
|
if (!is_vmalloc_addr(addr))
|
|
kfree(addr);
|
|
else
|
|
vfree(addr);
|
|
}
|
|
|
|
static inline void *
|
|
u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
|
|
{
|
|
void *mem;
|
|
void __user *userptr = (void __force __user *)(uintptr_t)user;
|
|
|
|
size *= nmemb;
|
|
|
|
mem = kmalloc(size, GFP_KERNEL | __GFP_NOWARN);
|
|
if (!mem)
|
|
mem = vmalloc(size);
|
|
if (!mem)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
if (copy_from_user(mem, userptr, size)) {
|
|
u_free(mem);
|
|
return ERR_PTR(-EFAULT);
|
|
}
|
|
|
|
return mem;
|
|
}
|
|
|
|
static int
|
|
nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
|
|
struct drm_nouveau_gem_pushbuf *req,
|
|
struct drm_nouveau_gem_pushbuf_bo *bo)
|
|
{
|
|
struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL;
|
|
int ret = 0;
|
|
unsigned i;
|
|
|
|
reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc));
|
|
if (IS_ERR(reloc))
|
|
return PTR_ERR(reloc);
|
|
|
|
for (i = 0; i < req->nr_relocs; i++) {
|
|
struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i];
|
|
struct drm_nouveau_gem_pushbuf_bo *b;
|
|
struct nouveau_bo *nvbo;
|
|
uint32_t data;
|
|
|
|
if (unlikely(r->bo_index > req->nr_buffers)) {
|
|
NV_ERROR(cli, "reloc bo index invalid\n");
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
b = &bo[r->bo_index];
|
|
if (b->presumed.valid)
|
|
continue;
|
|
|
|
if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
|
|
NV_ERROR(cli, "reloc container bo index invalid\n");
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv;
|
|
|
|
if (unlikely(r->reloc_bo_offset + 4 >
|
|
nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
|
|
NV_ERROR(cli, "reloc outside of bo\n");
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
if (!nvbo->kmap.virtual) {
|
|
ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
|
|
&nvbo->kmap);
|
|
if (ret) {
|
|
NV_ERROR(cli, "failed kmap for reloc\n");
|
|
break;
|
|
}
|
|
nvbo->validate_mapped = true;
|
|
}
|
|
|
|
if (r->flags & NOUVEAU_GEM_RELOC_LOW)
|
|
data = b->presumed.offset + r->data;
|
|
else
|
|
if (r->flags & NOUVEAU_GEM_RELOC_HIGH)
|
|
data = (b->presumed.offset + r->data) >> 32;
|
|
else
|
|
data = r->data;
|
|
|
|
if (r->flags & NOUVEAU_GEM_RELOC_OR) {
|
|
if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART)
|
|
data |= r->tor;
|
|
else
|
|
data |= r->vor;
|
|
}
|
|
|
|
spin_lock(&nvbo->bo.bdev->fence_lock);
|
|
ret = ttm_bo_wait(&nvbo->bo, false, false, false);
|
|
spin_unlock(&nvbo->bo.bdev->fence_lock);
|
|
if (ret) {
|
|
NV_ERROR(cli, "reloc wait_idle failed: %d\n", ret);
|
|
break;
|
|
}
|
|
|
|
nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
|
|
}
|
|
|
|
u_free(reloc);
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
|
|
struct nouveau_cli *cli = nouveau_cli(file_priv);
|
|
struct nouveau_abi16_chan *temp;
|
|
struct nouveau_drm *drm = nouveau_drm(dev);
|
|
struct drm_nouveau_gem_pushbuf *req = data;
|
|
struct drm_nouveau_gem_pushbuf_push *push;
|
|
struct drm_nouveau_gem_pushbuf_bo *bo;
|
|
struct nouveau_channel *chan = NULL;
|
|
struct validate_op op;
|
|
struct nouveau_fence *fence = NULL;
|
|
int i, j, ret = 0, do_reloc = 0;
|
|
|
|
if (unlikely(!abi16))
|
|
return -ENOMEM;
|
|
|
|
list_for_each_entry(temp, &abi16->channels, head) {
|
|
if (temp->chan->handle == (NVDRM_CHAN | req->channel)) {
|
|
chan = temp->chan;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!chan)
|
|
return nouveau_abi16_put(abi16, -ENOENT);
|
|
|
|
req->vram_available = drm->gem.vram_available;
|
|
req->gart_available = drm->gem.gart_available;
|
|
if (unlikely(req->nr_push == 0))
|
|
goto out_next;
|
|
|
|
if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
|
|
NV_ERROR(cli, "pushbuf push count exceeds limit: %d max %d\n",
|
|
req->nr_push, NOUVEAU_GEM_MAX_PUSH);
|
|
return nouveau_abi16_put(abi16, -EINVAL);
|
|
}
|
|
|
|
if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
|
|
NV_ERROR(cli, "pushbuf bo count exceeds limit: %d max %d\n",
|
|
req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
|
|
return nouveau_abi16_put(abi16, -EINVAL);
|
|
}
|
|
|
|
if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
|
|
NV_ERROR(cli, "pushbuf reloc count exceeds limit: %d max %d\n",
|
|
req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
|
|
return nouveau_abi16_put(abi16, -EINVAL);
|
|
}
|
|
|
|
push = u_memcpya(req->push, req->nr_push, sizeof(*push));
|
|
if (IS_ERR(push))
|
|
return nouveau_abi16_put(abi16, PTR_ERR(push));
|
|
|
|
bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
|
|
if (IS_ERR(bo)) {
|
|
u_free(push);
|
|
return nouveau_abi16_put(abi16, PTR_ERR(bo));
|
|
}
|
|
|
|
/* Ensure all push buffers are on validate list */
|
|
for (i = 0; i < req->nr_push; i++) {
|
|
if (push[i].bo_index >= req->nr_buffers) {
|
|
NV_ERROR(cli, "push %d buffer not in list\n", i);
|
|
ret = -EINVAL;
|
|
goto out_prevalid;
|
|
}
|
|
}
|
|
|
|
/* Validate buffer list */
|
|
ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
|
|
req->nr_buffers, &op, &do_reloc);
|
|
if (ret) {
|
|
if (ret != -ERESTARTSYS)
|
|
NV_ERROR(cli, "validate: %d\n", ret);
|
|
goto out_prevalid;
|
|
}
|
|
|
|
/* Apply any relocations that are required */
|
|
if (do_reloc) {
|
|
ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo);
|
|
if (ret) {
|
|
NV_ERROR(cli, "reloc apply: %d\n", ret);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (chan->dma.ib_max) {
|
|
ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
|
|
if (ret) {
|
|
NV_ERROR(cli, "nv50cal_space: %d\n", ret);
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; i < req->nr_push; i++) {
|
|
struct nouveau_bo *nvbo = (void *)(unsigned long)
|
|
bo[push[i].bo_index].user_priv;
|
|
|
|
nv50_dma_push(chan, nvbo, push[i].offset,
|
|
push[i].length);
|
|
}
|
|
} else
|
|
if (nv_device(drm->device)->chipset >= 0x25) {
|
|
ret = RING_SPACE(chan, req->nr_push * 2);
|
|
if (ret) {
|
|
NV_ERROR(cli, "cal_space: %d\n", ret);
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; i < req->nr_push; i++) {
|
|
struct nouveau_bo *nvbo = (void *)(unsigned long)
|
|
bo[push[i].bo_index].user_priv;
|
|
|
|
OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2);
|
|
OUT_RING(chan, 0);
|
|
}
|
|
} else {
|
|
ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
|
|
if (ret) {
|
|
NV_ERROR(cli, "jmp_space: %d\n", ret);
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; i < req->nr_push; i++) {
|
|
struct nouveau_bo *nvbo = (void *)(unsigned long)
|
|
bo[push[i].bo_index].user_priv;
|
|
uint32_t cmd;
|
|
|
|
cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2);
|
|
cmd |= 0x20000000;
|
|
if (unlikely(cmd != req->suffix0)) {
|
|
if (!nvbo->kmap.virtual) {
|
|
ret = ttm_bo_kmap(&nvbo->bo, 0,
|
|
nvbo->bo.mem.
|
|
num_pages,
|
|
&nvbo->kmap);
|
|
if (ret) {
|
|
WIND_RING(chan);
|
|
goto out;
|
|
}
|
|
nvbo->validate_mapped = true;
|
|
}
|
|
|
|
nouveau_bo_wr32(nvbo, (push[i].offset +
|
|
push[i].length - 8) / 4, cmd);
|
|
}
|
|
|
|
OUT_RING(chan, 0x20000000 |
|
|
(nvbo->bo.offset + push[i].offset));
|
|
OUT_RING(chan, 0);
|
|
for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
|
|
OUT_RING(chan, 0);
|
|
}
|
|
}
|
|
|
|
ret = nouveau_fence_new(chan, false, &fence);
|
|
if (ret) {
|
|
NV_ERROR(cli, "error fencing pushbuf: %d\n", ret);
|
|
WIND_RING(chan);
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
validate_fini(&op, fence);
|
|
nouveau_fence_unref(&fence);
|
|
|
|
out_prevalid:
|
|
u_free(bo);
|
|
u_free(push);
|
|
|
|
out_next:
|
|
if (chan->dma.ib_max) {
|
|
req->suffix0 = 0x00000000;
|
|
req->suffix1 = 0x00000000;
|
|
} else
|
|
if (nv_device(drm->device)->chipset >= 0x25) {
|
|
req->suffix0 = 0x00020000;
|
|
req->suffix1 = 0x00000000;
|
|
} else {
|
|
req->suffix0 = 0x20000000 |
|
|
(chan->push.vma.offset + ((chan->dma.cur + 2) << 2));
|
|
req->suffix1 = 0x00000000;
|
|
}
|
|
|
|
return nouveau_abi16_put(abi16, ret);
|
|
}
|
|
|
|
static inline uint32_t
|
|
domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain)
|
|
{
|
|
uint32_t flags = 0;
|
|
|
|
if (domain & NOUVEAU_GEM_DOMAIN_VRAM)
|
|
flags |= TTM_PL_FLAG_VRAM;
|
|
if (domain & NOUVEAU_GEM_DOMAIN_GART)
|
|
flags |= TTM_PL_FLAG_TT;
|
|
|
|
return flags;
|
|
}
|
|
|
|
int
|
|
nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct drm_nouveau_gem_cpu_prep *req = data;
|
|
struct drm_gem_object *gem;
|
|
struct nouveau_bo *nvbo;
|
|
bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
|
|
int ret = -EINVAL;
|
|
|
|
gem = drm_gem_object_lookup(dev, file_priv, req->handle);
|
|
if (!gem)
|
|
return -ENOENT;
|
|
nvbo = nouveau_gem_object(gem);
|
|
|
|
spin_lock(&nvbo->bo.bdev->fence_lock);
|
|
ret = ttm_bo_wait(&nvbo->bo, true, true, no_wait);
|
|
spin_unlock(&nvbo->bo.bdev->fence_lock);
|
|
drm_gem_object_unreference_unlocked(gem);
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct drm_nouveau_gem_info *req = data;
|
|
struct drm_gem_object *gem;
|
|
int ret;
|
|
|
|
gem = drm_gem_object_lookup(dev, file_priv, req->handle);
|
|
if (!gem)
|
|
return -ENOENT;
|
|
|
|
ret = nouveau_gem_info(file_priv, gem, req);
|
|
drm_gem_object_unreference_unlocked(gem);
|
|
return ret;
|
|
}
|
|
|