388 lines
10 KiB
C
388 lines
10 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR MIT
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/*
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* Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA,
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* Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA,
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sub license,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to 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 portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <linux/limits.h>
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#include <linux/swiotlb.h>
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#include "nouveau_drv.h"
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#include "nouveau_gem.h"
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#include "nouveau_mem.h"
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#include "nouveau_ttm.h"
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#include <drm/drm_legacy.h>
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#include <core/tegra.h>
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static void
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nouveau_manager_del(struct ttm_resource_manager *man, struct ttm_resource *reg)
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{
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nouveau_mem_del(reg);
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}
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static int
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nouveau_vram_manager_new(struct ttm_resource_manager *man,
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struct ttm_buffer_object *bo,
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const struct ttm_place *place,
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struct ttm_resource *reg)
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{
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struct nouveau_bo *nvbo = nouveau_bo(bo);
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struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
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int ret;
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if (drm->client.device.info.ram_size == 0)
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return -ENOMEM;
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ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg);
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if (ret)
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return ret;
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ret = nouveau_mem_vram(reg, nvbo->contig, nvbo->page);
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if (ret) {
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nouveau_mem_del(reg);
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return ret;
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}
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return 0;
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}
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const struct ttm_resource_manager_func nouveau_vram_manager = {
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.alloc = nouveau_vram_manager_new,
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.free = nouveau_manager_del,
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};
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static int
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nouveau_gart_manager_new(struct ttm_resource_manager *man,
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struct ttm_buffer_object *bo,
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const struct ttm_place *place,
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struct ttm_resource *reg)
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{
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struct nouveau_bo *nvbo = nouveau_bo(bo);
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struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
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int ret;
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ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg);
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if (ret)
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return ret;
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reg->start = 0;
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return 0;
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}
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const struct ttm_resource_manager_func nouveau_gart_manager = {
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.alloc = nouveau_gart_manager_new,
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.free = nouveau_manager_del,
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};
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static int
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nv04_gart_manager_new(struct ttm_resource_manager *man,
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struct ttm_buffer_object *bo,
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const struct ttm_place *place,
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struct ttm_resource *reg)
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{
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struct nouveau_bo *nvbo = nouveau_bo(bo);
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struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
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struct nouveau_mem *mem;
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int ret;
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ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg);
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mem = nouveau_mem(reg);
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if (ret)
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return ret;
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ret = nvif_vmm_get(&mem->cli->vmm.vmm, PTES, false, 12, 0,
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(long)reg->num_pages << PAGE_SHIFT, &mem->vma[0]);
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if (ret) {
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nouveau_mem_del(reg);
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return ret;
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}
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reg->start = mem->vma[0].addr >> PAGE_SHIFT;
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return 0;
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}
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const struct ttm_resource_manager_func nv04_gart_manager = {
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.alloc = nv04_gart_manager_new,
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.free = nouveau_manager_del,
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};
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static vm_fault_t nouveau_ttm_fault(struct vm_fault *vmf)
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{
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struct vm_area_struct *vma = vmf->vma;
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struct ttm_buffer_object *bo = vma->vm_private_data;
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pgprot_t prot;
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vm_fault_t ret;
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ret = ttm_bo_vm_reserve(bo, vmf);
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if (ret)
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return ret;
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ret = nouveau_ttm_fault_reserve_notify(bo);
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if (ret)
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goto error_unlock;
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nouveau_bo_del_io_reserve_lru(bo);
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prot = vm_get_page_prot(vma->vm_flags);
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ret = ttm_bo_vm_fault_reserved(vmf, prot, TTM_BO_VM_NUM_PREFAULT, 1);
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nouveau_bo_add_io_reserve_lru(bo);
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if (ret == VM_FAULT_RETRY && !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT))
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return ret;
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error_unlock:
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dma_resv_unlock(bo->base.resv);
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return ret;
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}
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static struct vm_operations_struct nouveau_ttm_vm_ops = {
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.fault = nouveau_ttm_fault,
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.open = ttm_bo_vm_open,
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.close = ttm_bo_vm_close,
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.access = ttm_bo_vm_access
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};
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int
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nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma)
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{
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struct drm_file *file_priv = filp->private_data;
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struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev);
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int ret;
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ret = ttm_bo_mmap(filp, vma, &drm->ttm.bdev);
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if (ret)
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return ret;
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vma->vm_ops = &nouveau_ttm_vm_ops;
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return 0;
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}
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static int
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nouveau_ttm_init_host(struct nouveau_drm *drm, u8 kind)
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{
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struct nvif_mmu *mmu = &drm->client.mmu;
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int typei;
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typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE |
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kind | NVIF_MEM_COHERENT);
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if (typei < 0)
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return -ENOSYS;
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drm->ttm.type_host[!!kind] = typei;
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typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE | kind);
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if (typei < 0)
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return -ENOSYS;
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drm->ttm.type_ncoh[!!kind] = typei;
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return 0;
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}
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static int
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nouveau_ttm_init_vram(struct nouveau_drm *drm)
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{
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if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
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struct ttm_resource_manager *man = kzalloc(sizeof(*man), GFP_KERNEL);
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if (!man)
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return -ENOMEM;
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man->func = &nouveau_vram_manager;
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ttm_resource_manager_init(man,
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drm->gem.vram_available >> PAGE_SHIFT);
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ttm_set_driver_manager(&drm->ttm.bdev, TTM_PL_VRAM, man);
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ttm_resource_manager_set_used(man, true);
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return 0;
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} else {
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return ttm_range_man_init(&drm->ttm.bdev, TTM_PL_VRAM, false,
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drm->gem.vram_available >> PAGE_SHIFT);
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}
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}
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static void
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nouveau_ttm_fini_vram(struct nouveau_drm *drm)
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{
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struct ttm_resource_manager *man = ttm_manager_type(&drm->ttm.bdev, TTM_PL_VRAM);
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if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
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ttm_resource_manager_set_used(man, false);
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ttm_resource_manager_evict_all(&drm->ttm.bdev, man);
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ttm_resource_manager_cleanup(man);
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ttm_set_driver_manager(&drm->ttm.bdev, TTM_PL_VRAM, NULL);
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kfree(man);
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} else
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ttm_range_man_fini(&drm->ttm.bdev, TTM_PL_VRAM);
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}
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static int
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nouveau_ttm_init_gtt(struct nouveau_drm *drm)
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{
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struct ttm_resource_manager *man;
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unsigned long size_pages = drm->gem.gart_available >> PAGE_SHIFT;
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const struct ttm_resource_manager_func *func = NULL;
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if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
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func = &nouveau_gart_manager;
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else if (!drm->agp.bridge)
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func = &nv04_gart_manager;
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else
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return ttm_range_man_init(&drm->ttm.bdev, TTM_PL_TT, true,
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size_pages);
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man = kzalloc(sizeof(*man), GFP_KERNEL);
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if (!man)
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return -ENOMEM;
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man->func = func;
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man->use_tt = true;
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ttm_resource_manager_init(man, size_pages);
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ttm_set_driver_manager(&drm->ttm.bdev, TTM_PL_TT, man);
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ttm_resource_manager_set_used(man, true);
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return 0;
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}
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static void
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nouveau_ttm_fini_gtt(struct nouveau_drm *drm)
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{
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struct ttm_resource_manager *man = ttm_manager_type(&drm->ttm.bdev, TTM_PL_TT);
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if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA &&
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drm->agp.bridge)
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ttm_range_man_fini(&drm->ttm.bdev, TTM_PL_TT);
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else {
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ttm_resource_manager_set_used(man, false);
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ttm_resource_manager_evict_all(&drm->ttm.bdev, man);
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ttm_resource_manager_cleanup(man);
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ttm_set_driver_manager(&drm->ttm.bdev, TTM_PL_TT, NULL);
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kfree(man);
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}
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}
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int
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nouveau_ttm_init(struct nouveau_drm *drm)
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{
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struct nvkm_device *device = nvxx_device(&drm->client.device);
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struct nvkm_pci *pci = device->pci;
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struct nvif_mmu *mmu = &drm->client.mmu;
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struct drm_device *dev = drm->dev;
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bool need_swiotlb = false;
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int typei, ret;
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ret = nouveau_ttm_init_host(drm, 0);
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if (ret)
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return ret;
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if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA &&
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drm->client.device.info.chipset != 0x50) {
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ret = nouveau_ttm_init_host(drm, NVIF_MEM_KIND);
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if (ret)
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return ret;
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}
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if (drm->client.device.info.platform != NV_DEVICE_INFO_V0_SOC &&
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drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
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typei = nvif_mmu_type(mmu, NVIF_MEM_VRAM | NVIF_MEM_MAPPABLE |
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NVIF_MEM_KIND |
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NVIF_MEM_COMP |
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NVIF_MEM_DISP);
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if (typei < 0)
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return -ENOSYS;
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drm->ttm.type_vram = typei;
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} else {
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drm->ttm.type_vram = -1;
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}
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if (pci && pci->agp.bridge) {
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drm->agp.bridge = pci->agp.bridge;
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drm->agp.base = pci->agp.base;
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drm->agp.size = pci->agp.size;
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drm->agp.cma = pci->agp.cma;
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}
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#if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
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need_swiotlb = !!swiotlb_nr_tbl();
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#endif
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ret = ttm_bo_device_init(&drm->ttm.bdev, &nouveau_bo_driver,
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drm->dev->dev, dev->anon_inode->i_mapping,
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dev->vma_offset_manager, need_swiotlb,
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drm->client.mmu.dmabits <= 32);
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if (ret) {
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NV_ERROR(drm, "error initialising bo driver, %d\n", ret);
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return ret;
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}
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/* VRAM init */
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drm->gem.vram_available = drm->client.device.info.ram_user;
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arch_io_reserve_memtype_wc(device->func->resource_addr(device, 1),
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device->func->resource_size(device, 1));
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ret = nouveau_ttm_init_vram(drm);
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if (ret) {
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NV_ERROR(drm, "VRAM mm init failed, %d\n", ret);
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return ret;
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}
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drm->ttm.mtrr = arch_phys_wc_add(device->func->resource_addr(device, 1),
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device->func->resource_size(device, 1));
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/* GART init */
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if (!drm->agp.bridge) {
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drm->gem.gart_available = drm->client.vmm.vmm.limit;
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} else {
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drm->gem.gart_available = drm->agp.size;
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}
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ret = nouveau_ttm_init_gtt(drm);
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if (ret) {
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NV_ERROR(drm, "GART mm init failed, %d\n", ret);
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return ret;
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}
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mutex_init(&drm->ttm.io_reserve_mutex);
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INIT_LIST_HEAD(&drm->ttm.io_reserve_lru);
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NV_INFO(drm, "VRAM: %d MiB\n", (u32)(drm->gem.vram_available >> 20));
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NV_INFO(drm, "GART: %d MiB\n", (u32)(drm->gem.gart_available >> 20));
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return 0;
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}
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void
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nouveau_ttm_fini(struct nouveau_drm *drm)
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{
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struct nvkm_device *device = nvxx_device(&drm->client.device);
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nouveau_ttm_fini_vram(drm);
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nouveau_ttm_fini_gtt(drm);
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ttm_bo_device_release(&drm->ttm.bdev);
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arch_phys_wc_del(drm->ttm.mtrr);
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drm->ttm.mtrr = 0;
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arch_io_free_memtype_wc(device->func->resource_addr(device, 1),
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device->func->resource_size(device, 1));
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}
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