1caab277bSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2c8afe684SRob Clark /* 3c8afe684SRob Clark * Copyright (C) 2013 Red Hat 4c8afe684SRob Clark * Author: Rob Clark <robdclark@gmail.com> 5c8afe684SRob Clark */ 6c8afe684SRob Clark 70a0f0d8bSChristoph Hellwig #include <linux/dma-map-ops.h> 8c8afe684SRob Clark #include <linux/spinlock.h> 9c8afe684SRob Clark #include <linux/shmem_fs.h> 1005b84911SRob Clark #include <linux/dma-buf.h> 1101c8f1c4SDan Williams #include <linux/pfn_t.h> 12c8afe684SRob Clark 13feea39a8SSam Ravnborg #include <drm/drm_prime.h> 14feea39a8SSam Ravnborg 15c8afe684SRob Clark #include "msm_drv.h" 16fde5de6cSRob Clark #include "msm_fence.h" 17c8afe684SRob Clark #include "msm_gem.h" 187198e6b0SRob Clark #include "msm_gpu.h" 19871d812aSRob Clark #include "msm_mmu.h" 20c8afe684SRob Clark 210e08270aSSushmita Susheelendra static void msm_gem_vunmap_locked(struct drm_gem_object *obj); 220e08270aSSushmita Susheelendra 230e08270aSSushmita Susheelendra 24871d812aSRob Clark static dma_addr_t physaddr(struct drm_gem_object *obj) 25871d812aSRob Clark { 26871d812aSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 27871d812aSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 28871d812aSRob Clark return (((dma_addr_t)msm_obj->vram_node->start) << PAGE_SHIFT) + 29871d812aSRob Clark priv->vram.paddr; 30871d812aSRob Clark } 31871d812aSRob Clark 32072f1f91SRob Clark static bool use_pages(struct drm_gem_object *obj) 33072f1f91SRob Clark { 34072f1f91SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 35072f1f91SRob Clark return !msm_obj->vram_node; 36072f1f91SRob Clark } 37072f1f91SRob Clark 383de433c5SRob Clark /* 393de433c5SRob Clark * Cache sync.. this is a bit over-complicated, to fit dma-mapping 403de433c5SRob Clark * API. Really GPU cache is out of scope here (handled on cmdstream) 413de433c5SRob Clark * and all we need to do is invalidate newly allocated pages before 423de433c5SRob Clark * mapping to CPU as uncached/writecombine. 433de433c5SRob Clark * 443de433c5SRob Clark * On top of this, we have the added headache, that depending on 453de433c5SRob Clark * display generation, the display's iommu may be wired up to either 463de433c5SRob Clark * the toplevel drm device (mdss), or to the mdp sub-node, meaning 473de433c5SRob Clark * that here we either have dma-direct or iommu ops. 483de433c5SRob Clark * 493de433c5SRob Clark * Let this be a cautionary tail of abstraction gone wrong. 503de433c5SRob Clark */ 513de433c5SRob Clark 523de433c5SRob Clark static void sync_for_device(struct msm_gem_object *msm_obj) 533de433c5SRob Clark { 543de433c5SRob Clark struct device *dev = msm_obj->base.dev->dev; 553de433c5SRob Clark 569f614197SRob Clark if (get_dma_ops(dev) && IS_ENABLED(CONFIG_ARM64)) { 573de433c5SRob Clark dma_sync_sg_for_device(dev, msm_obj->sgt->sgl, 583de433c5SRob Clark msm_obj->sgt->nents, DMA_BIDIRECTIONAL); 593de433c5SRob Clark } else { 603de433c5SRob Clark dma_map_sg(dev, msm_obj->sgt->sgl, 613de433c5SRob Clark msm_obj->sgt->nents, DMA_BIDIRECTIONAL); 623de433c5SRob Clark } 633de433c5SRob Clark } 643de433c5SRob Clark 653de433c5SRob Clark static void sync_for_cpu(struct msm_gem_object *msm_obj) 663de433c5SRob Clark { 673de433c5SRob Clark struct device *dev = msm_obj->base.dev->dev; 683de433c5SRob Clark 699f614197SRob Clark if (get_dma_ops(dev) && IS_ENABLED(CONFIG_ARM64)) { 703de433c5SRob Clark dma_sync_sg_for_cpu(dev, msm_obj->sgt->sgl, 713de433c5SRob Clark msm_obj->sgt->nents, DMA_BIDIRECTIONAL); 723de433c5SRob Clark } else { 733de433c5SRob Clark dma_unmap_sg(dev, msm_obj->sgt->sgl, 743de433c5SRob Clark msm_obj->sgt->nents, DMA_BIDIRECTIONAL); 753de433c5SRob Clark } 763de433c5SRob Clark } 773de433c5SRob Clark 78871d812aSRob Clark /* allocate pages from VRAM carveout, used when no IOMMU: */ 790e08270aSSushmita Susheelendra static struct page **get_pages_vram(struct drm_gem_object *obj, int npages) 80871d812aSRob Clark { 81871d812aSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 82871d812aSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 83871d812aSRob Clark dma_addr_t paddr; 84871d812aSRob Clark struct page **p; 85871d812aSRob Clark int ret, i; 86871d812aSRob Clark 872098105eSMichal Hocko p = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 88871d812aSRob Clark if (!p) 89871d812aSRob Clark return ERR_PTR(-ENOMEM); 90871d812aSRob Clark 910e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 924e64e553SChris Wilson ret = drm_mm_insert_node(&priv->vram.mm, msm_obj->vram_node, npages); 930e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 94871d812aSRob Clark if (ret) { 952098105eSMichal Hocko kvfree(p); 96871d812aSRob Clark return ERR_PTR(ret); 97871d812aSRob Clark } 98871d812aSRob Clark 99871d812aSRob Clark paddr = physaddr(obj); 100871d812aSRob Clark for (i = 0; i < npages; i++) { 101871d812aSRob Clark p[i] = phys_to_page(paddr); 102871d812aSRob Clark paddr += PAGE_SIZE; 103871d812aSRob Clark } 104871d812aSRob Clark 105871d812aSRob Clark return p; 106871d812aSRob Clark } 107c8afe684SRob Clark 108c8afe684SRob Clark static struct page **get_pages(struct drm_gem_object *obj) 109c8afe684SRob Clark { 110c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 111c8afe684SRob Clark 112c8afe684SRob Clark if (!msm_obj->pages) { 113c8afe684SRob Clark struct drm_device *dev = obj->dev; 114871d812aSRob Clark struct page **p; 115c8afe684SRob Clark int npages = obj->size >> PAGE_SHIFT; 116c8afe684SRob Clark 117072f1f91SRob Clark if (use_pages(obj)) 1180cdbe8acSDavid Herrmann p = drm_gem_get_pages(obj); 119871d812aSRob Clark else 120871d812aSRob Clark p = get_pages_vram(obj, npages); 121871d812aSRob Clark 122c8afe684SRob Clark if (IS_ERR(p)) { 1236a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not get pages: %ld\n", 124c8afe684SRob Clark PTR_ERR(p)); 125c8afe684SRob Clark return p; 126c8afe684SRob Clark } 127c8afe684SRob Clark 12862e3a3e3SPrakash Kamliya msm_obj->pages = p; 12962e3a3e3SPrakash Kamliya 130c8afe684SRob Clark msm_obj->sgt = drm_prime_pages_to_sg(p, npages); 1311f70e079SWei Yongjun if (IS_ERR(msm_obj->sgt)) { 13262e3a3e3SPrakash Kamliya void *ptr = ERR_CAST(msm_obj->sgt); 133c8afe684SRob Clark 1346a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "failed to allocate sgt\n"); 13562e3a3e3SPrakash Kamliya msm_obj->sgt = NULL; 13662e3a3e3SPrakash Kamliya return ptr; 13762e3a3e3SPrakash Kamliya } 138c8afe684SRob Clark 139c8afe684SRob Clark /* For non-cached buffers, ensure the new pages are clean 140c8afe684SRob Clark * because display controller, GPU, etc. are not coherent: 141c8afe684SRob Clark */ 142c8afe684SRob Clark if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) 1433de433c5SRob Clark sync_for_device(msm_obj); 144c8afe684SRob Clark } 145c8afe684SRob Clark 146c8afe684SRob Clark return msm_obj->pages; 147c8afe684SRob Clark } 148c8afe684SRob Clark 1490e08270aSSushmita Susheelendra static void put_pages_vram(struct drm_gem_object *obj) 1500e08270aSSushmita Susheelendra { 1510e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 1520e08270aSSushmita Susheelendra struct msm_drm_private *priv = obj->dev->dev_private; 1530e08270aSSushmita Susheelendra 1540e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 1550e08270aSSushmita Susheelendra drm_mm_remove_node(msm_obj->vram_node); 1560e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 1570e08270aSSushmita Susheelendra 1580e08270aSSushmita Susheelendra kvfree(msm_obj->pages); 1590e08270aSSushmita Susheelendra } 1600e08270aSSushmita Susheelendra 161c8afe684SRob Clark static void put_pages(struct drm_gem_object *obj) 162c8afe684SRob Clark { 163c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 164c8afe684SRob Clark 165c8afe684SRob Clark if (msm_obj->pages) { 1663976626eSBen Hutchings if (msm_obj->sgt) { 1673976626eSBen Hutchings /* For non-cached buffers, ensure the new 1683976626eSBen Hutchings * pages are clean because display controller, 1693976626eSBen Hutchings * GPU, etc. are not coherent: 170c8afe684SRob Clark */ 171c8afe684SRob Clark if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) 1723de433c5SRob Clark sync_for_cpu(msm_obj); 17362e3a3e3SPrakash Kamliya 174c8afe684SRob Clark sg_free_table(msm_obj->sgt); 175c8afe684SRob Clark kfree(msm_obj->sgt); 1763976626eSBen Hutchings } 177c8afe684SRob Clark 178072f1f91SRob Clark if (use_pages(obj)) 179c8afe684SRob Clark drm_gem_put_pages(obj, msm_obj->pages, true, false); 1800e08270aSSushmita Susheelendra else 1810e08270aSSushmita Susheelendra put_pages_vram(obj); 182871d812aSRob Clark 183c8afe684SRob Clark msm_obj->pages = NULL; 184c8afe684SRob Clark } 185c8afe684SRob Clark } 186c8afe684SRob Clark 18705b84911SRob Clark struct page **msm_gem_get_pages(struct drm_gem_object *obj) 18805b84911SRob Clark { 1890e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 19005b84911SRob Clark struct page **p; 1910e08270aSSushmita Susheelendra 1920e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 1930e08270aSSushmita Susheelendra 1940e08270aSSushmita Susheelendra if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 1950e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 1960e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 1970e08270aSSushmita Susheelendra } 1980e08270aSSushmita Susheelendra 19905b84911SRob Clark p = get_pages(obj); 2000e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 20105b84911SRob Clark return p; 20205b84911SRob Clark } 20305b84911SRob Clark 20405b84911SRob Clark void msm_gem_put_pages(struct drm_gem_object *obj) 20505b84911SRob Clark { 20605b84911SRob Clark /* when we start tracking the pin count, then do something here */ 20705b84911SRob Clark } 20805b84911SRob Clark 209c8afe684SRob Clark int msm_gem_mmap_obj(struct drm_gem_object *obj, 210c8afe684SRob Clark struct vm_area_struct *vma) 211c8afe684SRob Clark { 212c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 213c8afe684SRob Clark 214c8afe684SRob Clark vma->vm_flags &= ~VM_PFNMAP; 215c8afe684SRob Clark vma->vm_flags |= VM_MIXEDMAP; 216c8afe684SRob Clark 217c8afe684SRob Clark if (msm_obj->flags & MSM_BO_WC) { 218c8afe684SRob Clark vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); 219c8afe684SRob Clark } else if (msm_obj->flags & MSM_BO_UNCACHED) { 220c8afe684SRob Clark vma->vm_page_prot = pgprot_noncached(vm_get_page_prot(vma->vm_flags)); 221c8afe684SRob Clark } else { 222c8afe684SRob Clark /* 223c8afe684SRob Clark * Shunt off cached objs to shmem file so they have their own 224c8afe684SRob Clark * address_space (so unmap_mapping_range does what we want, 225c8afe684SRob Clark * in particular in the case of mmap'd dmabufs) 226c8afe684SRob Clark */ 227c8afe684SRob Clark fput(vma->vm_file); 228c8afe684SRob Clark get_file(obj->filp); 229c8afe684SRob Clark vma->vm_pgoff = 0; 230c8afe684SRob Clark vma->vm_file = obj->filp; 231c8afe684SRob Clark 232c8afe684SRob Clark vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); 233c8afe684SRob Clark } 234c8afe684SRob Clark 235c8afe684SRob Clark return 0; 236c8afe684SRob Clark } 237c8afe684SRob Clark 238c8afe684SRob Clark int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma) 239c8afe684SRob Clark { 240c8afe684SRob Clark int ret; 241c8afe684SRob Clark 242c8afe684SRob Clark ret = drm_gem_mmap(filp, vma); 243c8afe684SRob Clark if (ret) { 244c8afe684SRob Clark DBG("mmap failed: %d", ret); 245c8afe684SRob Clark return ret; 246c8afe684SRob Clark } 247c8afe684SRob Clark 248c8afe684SRob Clark return msm_gem_mmap_obj(vma->vm_private_data, vma); 249c8afe684SRob Clark } 250c8afe684SRob Clark 251a5f74ec7SSouptick Joarder vm_fault_t msm_gem_fault(struct vm_fault *vmf) 252c8afe684SRob Clark { 25311bac800SDave Jiang struct vm_area_struct *vma = vmf->vma; 254c8afe684SRob Clark struct drm_gem_object *obj = vma->vm_private_data; 2550e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 256c8afe684SRob Clark struct page **pages; 257c8afe684SRob Clark unsigned long pfn; 258c8afe684SRob Clark pgoff_t pgoff; 259a5f74ec7SSouptick Joarder int err; 260a5f74ec7SSouptick Joarder vm_fault_t ret; 261c8afe684SRob Clark 2620e08270aSSushmita Susheelendra /* 2630e08270aSSushmita Susheelendra * vm_ops.open/drm_gem_mmap_obj and close get and put 2640e08270aSSushmita Susheelendra * a reference on obj. So, we dont need to hold one here. 265d78d383aSRob Clark */ 266a5f74ec7SSouptick Joarder err = mutex_lock_interruptible(&msm_obj->lock); 267a5f74ec7SSouptick Joarder if (err) { 268a5f74ec7SSouptick Joarder ret = VM_FAULT_NOPAGE; 269c8afe684SRob Clark goto out; 270a5f74ec7SSouptick Joarder } 271c8afe684SRob Clark 2720e08270aSSushmita Susheelendra if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 2730e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 2740e08270aSSushmita Susheelendra return VM_FAULT_SIGBUS; 2750e08270aSSushmita Susheelendra } 2760e08270aSSushmita Susheelendra 277c8afe684SRob Clark /* make sure we have pages attached now */ 278c8afe684SRob Clark pages = get_pages(obj); 279c8afe684SRob Clark if (IS_ERR(pages)) { 280a5f74ec7SSouptick Joarder ret = vmf_error(PTR_ERR(pages)); 281c8afe684SRob Clark goto out_unlock; 282c8afe684SRob Clark } 283c8afe684SRob Clark 284c8afe684SRob Clark /* We don't use vmf->pgoff since that has the fake offset: */ 2851a29d85eSJan Kara pgoff = (vmf->address - vma->vm_start) >> PAGE_SHIFT; 286c8afe684SRob Clark 287871d812aSRob Clark pfn = page_to_pfn(pages[pgoff]); 288c8afe684SRob Clark 2891a29d85eSJan Kara VERB("Inserting %p pfn %lx, pa %lx", (void *)vmf->address, 290c8afe684SRob Clark pfn, pfn << PAGE_SHIFT); 291c8afe684SRob Clark 292a5f74ec7SSouptick Joarder ret = vmf_insert_mixed(vma, vmf->address, __pfn_to_pfn_t(pfn, PFN_DEV)); 293c8afe684SRob Clark out_unlock: 2940e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 295c8afe684SRob Clark out: 296a5f74ec7SSouptick Joarder return ret; 297c8afe684SRob Clark } 298c8afe684SRob Clark 299c8afe684SRob Clark /** get mmap offset */ 300c8afe684SRob Clark static uint64_t mmap_offset(struct drm_gem_object *obj) 301c8afe684SRob Clark { 302c8afe684SRob Clark struct drm_device *dev = obj->dev; 3030e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 304c8afe684SRob Clark int ret; 305c8afe684SRob Clark 3060e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 307c8afe684SRob Clark 308c8afe684SRob Clark /* Make it mmapable */ 309c8afe684SRob Clark ret = drm_gem_create_mmap_offset(obj); 310c8afe684SRob Clark 311c8afe684SRob Clark if (ret) { 3126a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not allocate mmap offset\n"); 313c8afe684SRob Clark return 0; 314c8afe684SRob Clark } 315c8afe684SRob Clark 316c8afe684SRob Clark return drm_vma_node_offset_addr(&obj->vma_node); 317c8afe684SRob Clark } 318c8afe684SRob Clark 319c8afe684SRob Clark uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj) 320c8afe684SRob Clark { 321c8afe684SRob Clark uint64_t offset; 3220e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 3230e08270aSSushmita Susheelendra 3240e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 325c8afe684SRob Clark offset = mmap_offset(obj); 3260e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 327c8afe684SRob Clark return offset; 328c8afe684SRob Clark } 329c8afe684SRob Clark 3304b85f7f5SRob Clark static struct msm_gem_vma *add_vma(struct drm_gem_object *obj, 3314b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3324b85f7f5SRob Clark { 3334b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3344b85f7f5SRob Clark struct msm_gem_vma *vma; 3354b85f7f5SRob Clark 3360e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 3370e08270aSSushmita Susheelendra 3384b85f7f5SRob Clark vma = kzalloc(sizeof(*vma), GFP_KERNEL); 3394b85f7f5SRob Clark if (!vma) 3404b85f7f5SRob Clark return ERR_PTR(-ENOMEM); 3414b85f7f5SRob Clark 3424b85f7f5SRob Clark vma->aspace = aspace; 3434b85f7f5SRob Clark 3444b85f7f5SRob Clark list_add_tail(&vma->list, &msm_obj->vmas); 3454b85f7f5SRob Clark 3464b85f7f5SRob Clark return vma; 3474b85f7f5SRob Clark } 3484b85f7f5SRob Clark 3494b85f7f5SRob Clark static struct msm_gem_vma *lookup_vma(struct drm_gem_object *obj, 3504b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3514b85f7f5SRob Clark { 3524b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3534b85f7f5SRob Clark struct msm_gem_vma *vma; 3544b85f7f5SRob Clark 3550e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 3564b85f7f5SRob Clark 3574b85f7f5SRob Clark list_for_each_entry(vma, &msm_obj->vmas, list) { 3584b85f7f5SRob Clark if (vma->aspace == aspace) 3594b85f7f5SRob Clark return vma; 3604b85f7f5SRob Clark } 3614b85f7f5SRob Clark 3624b85f7f5SRob Clark return NULL; 3634b85f7f5SRob Clark } 3644b85f7f5SRob Clark 3654b85f7f5SRob Clark static void del_vma(struct msm_gem_vma *vma) 3664b85f7f5SRob Clark { 3674b85f7f5SRob Clark if (!vma) 3684b85f7f5SRob Clark return; 3694b85f7f5SRob Clark 3704b85f7f5SRob Clark list_del(&vma->list); 3714b85f7f5SRob Clark kfree(vma); 3724b85f7f5SRob Clark } 3734b85f7f5SRob Clark 3740e08270aSSushmita Susheelendra /* Called with msm_obj->lock locked */ 3754fe5f65eSRob Clark static void 3764fe5f65eSRob Clark put_iova(struct drm_gem_object *obj) 3774fe5f65eSRob Clark { 3784fe5f65eSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3794b85f7f5SRob Clark struct msm_gem_vma *vma, *tmp; 3804fe5f65eSRob Clark 3810e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 3824fe5f65eSRob Clark 3834b85f7f5SRob Clark list_for_each_entry_safe(vma, tmp, &msm_obj->vmas, list) { 384d67f1b6dSBrian Masney if (vma->aspace) { 3857ad0e8cfSJordan Crouse msm_gem_purge_vma(vma->aspace, vma); 3867ad0e8cfSJordan Crouse msm_gem_close_vma(vma->aspace, vma); 387d67f1b6dSBrian Masney } 3884b85f7f5SRob Clark del_vma(vma); 3894fe5f65eSRob Clark } 3904fe5f65eSRob Clark } 3914fe5f65eSRob Clark 392c0ee9794SJordan Crouse static int msm_gem_get_iova_locked(struct drm_gem_object *obj, 393d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova, 394d3b8877eSJonathan Marek u64 range_start, u64 range_end) 395c8afe684SRob Clark { 396c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3974b85f7f5SRob Clark struct msm_gem_vma *vma; 398c8afe684SRob Clark int ret = 0; 399c8afe684SRob Clark 400c0ee9794SJordan Crouse WARN_ON(!mutex_is_locked(&msm_obj->lock)); 401cb1e3818SRob Clark 4024b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 403871d812aSRob Clark 4044b85f7f5SRob Clark if (!vma) { 4054b85f7f5SRob Clark vma = add_vma(obj, aspace); 406c0ee9794SJordan Crouse if (IS_ERR(vma)) 407c0ee9794SJordan Crouse return PTR_ERR(vma); 4084b85f7f5SRob Clark 409d3b8877eSJonathan Marek ret = msm_gem_init_vma(aspace, vma, obj->size >> PAGE_SHIFT, 410d3b8877eSJonathan Marek range_start, range_end); 411c0ee9794SJordan Crouse if (ret) { 412c0ee9794SJordan Crouse del_vma(vma); 413c0ee9794SJordan Crouse return ret; 414c8afe684SRob Clark } 4154b85f7f5SRob Clark } 4164b85f7f5SRob Clark 4174b85f7f5SRob Clark *iova = vma->iova; 4184b85f7f5SRob Clark return 0; 419c0ee9794SJordan Crouse } 4204b85f7f5SRob Clark 421c0ee9794SJordan Crouse static int msm_gem_pin_iova(struct drm_gem_object *obj, 422c0ee9794SJordan Crouse struct msm_gem_address_space *aspace) 423c0ee9794SJordan Crouse { 424c0ee9794SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 425c0ee9794SJordan Crouse struct msm_gem_vma *vma; 426c0ee9794SJordan Crouse struct page **pages; 427bbc2cd07SRob Clark int prot = IOMMU_READ; 428bbc2cd07SRob Clark 429bbc2cd07SRob Clark if (!(msm_obj->flags & MSM_BO_GPU_READONLY)) 430bbc2cd07SRob Clark prot |= IOMMU_WRITE; 431c0ee9794SJordan Crouse 4320b462d7aSJonathan Marek if (msm_obj->flags & MSM_BO_MAP_PRIV) 4330b462d7aSJonathan Marek prot |= IOMMU_PRIV; 4340b462d7aSJonathan Marek 435c0ee9794SJordan Crouse WARN_ON(!mutex_is_locked(&msm_obj->lock)); 436c0ee9794SJordan Crouse 437c0ee9794SJordan Crouse if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) 438c0ee9794SJordan Crouse return -EBUSY; 439c0ee9794SJordan Crouse 440c0ee9794SJordan Crouse vma = lookup_vma(obj, aspace); 441c0ee9794SJordan Crouse if (WARN_ON(!vma)) 442c0ee9794SJordan Crouse return -EINVAL; 443c0ee9794SJordan Crouse 444c0ee9794SJordan Crouse pages = get_pages(obj); 445c0ee9794SJordan Crouse if (IS_ERR(pages)) 446c0ee9794SJordan Crouse return PTR_ERR(pages); 447c0ee9794SJordan Crouse 448bbc2cd07SRob Clark return msm_gem_map_vma(aspace, vma, prot, 449bbc2cd07SRob Clark msm_obj->sgt, obj->size >> PAGE_SHIFT); 450c0ee9794SJordan Crouse } 451c0ee9794SJordan Crouse 452d3b8877eSJonathan Marek /* 453d3b8877eSJonathan Marek * get iova and pin it. Should have a matching put 454d3b8877eSJonathan Marek * limits iova to specified range (in pages) 455d3b8877eSJonathan Marek */ 456d3b8877eSJonathan Marek int msm_gem_get_and_pin_iova_range(struct drm_gem_object *obj, 457d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova, 458d3b8877eSJonathan Marek u64 range_start, u64 range_end) 459c0ee9794SJordan Crouse { 460c0ee9794SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 461c0ee9794SJordan Crouse u64 local; 462c0ee9794SJordan Crouse int ret; 463c0ee9794SJordan Crouse 464c0ee9794SJordan Crouse mutex_lock(&msm_obj->lock); 465c0ee9794SJordan Crouse 466d3b8877eSJonathan Marek ret = msm_gem_get_iova_locked(obj, aspace, &local, 467d3b8877eSJonathan Marek range_start, range_end); 468c0ee9794SJordan Crouse 469c0ee9794SJordan Crouse if (!ret) 470c0ee9794SJordan Crouse ret = msm_gem_pin_iova(obj, aspace); 471c0ee9794SJordan Crouse 472c0ee9794SJordan Crouse if (!ret) 473c0ee9794SJordan Crouse *iova = local; 474c0ee9794SJordan Crouse 4750e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 476c8afe684SRob Clark return ret; 477c8afe684SRob Clark } 478c8afe684SRob Clark 479d3b8877eSJonathan Marek /* get iova and pin it. Should have a matching put */ 480d3b8877eSJonathan Marek int msm_gem_get_and_pin_iova(struct drm_gem_object *obj, 481d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova) 482d3b8877eSJonathan Marek { 483d3b8877eSJonathan Marek return msm_gem_get_and_pin_iova_range(obj, aspace, iova, 0, U64_MAX); 484d3b8877eSJonathan Marek } 485d3b8877eSJonathan Marek 4867ad0e8cfSJordan Crouse /* 4877ad0e8cfSJordan Crouse * Get an iova but don't pin it. Doesn't need a put because iovas are currently 4887ad0e8cfSJordan Crouse * valid for the life of the object 4897ad0e8cfSJordan Crouse */ 4909fe041f6SJordan Crouse int msm_gem_get_iova(struct drm_gem_object *obj, 4919fe041f6SJordan Crouse struct msm_gem_address_space *aspace, uint64_t *iova) 4929fe041f6SJordan Crouse { 4939fe041f6SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 4949fe041f6SJordan Crouse int ret; 4959fe041f6SJordan Crouse 4969fe041f6SJordan Crouse mutex_lock(&msm_obj->lock); 497d3b8877eSJonathan Marek ret = msm_gem_get_iova_locked(obj, aspace, iova, 0, U64_MAX); 4989fe041f6SJordan Crouse mutex_unlock(&msm_obj->lock); 4999fe041f6SJordan Crouse 5009fe041f6SJordan Crouse return ret; 5019fe041f6SJordan Crouse } 5029fe041f6SJordan Crouse 5032638d90aSRob Clark /* get iova without taking a reference, used in places where you have 5049fe041f6SJordan Crouse * already done a 'msm_gem_get_and_pin_iova' or 'msm_gem_get_iova' 5052638d90aSRob Clark */ 5068bdcd949SRob Clark uint64_t msm_gem_iova(struct drm_gem_object *obj, 5078bdcd949SRob Clark struct msm_gem_address_space *aspace) 5082638d90aSRob Clark { 5090e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 5104b85f7f5SRob Clark struct msm_gem_vma *vma; 5114b85f7f5SRob Clark 5120e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 5134b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 5140e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5154b85f7f5SRob Clark WARN_ON(!vma); 5164b85f7f5SRob Clark 5174b85f7f5SRob Clark return vma ? vma->iova : 0; 5182638d90aSRob Clark } 5192638d90aSRob Clark 5207ad0e8cfSJordan Crouse /* 5217ad0e8cfSJordan Crouse * Unpin a iova by updating the reference counts. The memory isn't actually 5227ad0e8cfSJordan Crouse * purged until something else (shrinker, mm_notifier, destroy, etc) decides 5237ad0e8cfSJordan Crouse * to get rid of it 5247ad0e8cfSJordan Crouse */ 5257ad0e8cfSJordan Crouse void msm_gem_unpin_iova(struct drm_gem_object *obj, 5268bdcd949SRob Clark struct msm_gem_address_space *aspace) 527c8afe684SRob Clark { 5287ad0e8cfSJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 5297ad0e8cfSJordan Crouse struct msm_gem_vma *vma; 5307ad0e8cfSJordan Crouse 5317ad0e8cfSJordan Crouse mutex_lock(&msm_obj->lock); 5327ad0e8cfSJordan Crouse vma = lookup_vma(obj, aspace); 5337ad0e8cfSJordan Crouse 5347ad0e8cfSJordan Crouse if (!WARN_ON(!vma)) 5357ad0e8cfSJordan Crouse msm_gem_unmap_vma(aspace, vma); 5367ad0e8cfSJordan Crouse 5377ad0e8cfSJordan Crouse mutex_unlock(&msm_obj->lock); 538c8afe684SRob Clark } 539c8afe684SRob Clark 540c8afe684SRob Clark int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 541c8afe684SRob Clark struct drm_mode_create_dumb *args) 542c8afe684SRob Clark { 543c8afe684SRob Clark args->pitch = align_pitch(args->width, args->bpp); 544c8afe684SRob Clark args->size = PAGE_ALIGN(args->pitch * args->height); 545c8afe684SRob Clark return msm_gem_new_handle(dev, file, args->size, 5460815d774SJordan Crouse MSM_BO_SCANOUT | MSM_BO_WC, &args->handle, "dumb"); 547c8afe684SRob Clark } 548c8afe684SRob Clark 549c8afe684SRob Clark int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 550c8afe684SRob Clark uint32_t handle, uint64_t *offset) 551c8afe684SRob Clark { 552c8afe684SRob Clark struct drm_gem_object *obj; 553c8afe684SRob Clark int ret = 0; 554c8afe684SRob Clark 555c8afe684SRob Clark /* GEM does all our handle to object mapping */ 556a8ad0bd8SChris Wilson obj = drm_gem_object_lookup(file, handle); 557c8afe684SRob Clark if (obj == NULL) { 558c8afe684SRob Clark ret = -ENOENT; 559c8afe684SRob Clark goto fail; 560c8afe684SRob Clark } 561c8afe684SRob Clark 562c8afe684SRob Clark *offset = msm_gem_mmap_offset(obj); 563c8afe684SRob Clark 564f7d33950SEmil Velikov drm_gem_object_put(obj); 565c8afe684SRob Clark 566c8afe684SRob Clark fail: 567c8afe684SRob Clark return ret; 568c8afe684SRob Clark } 569c8afe684SRob Clark 570fad33f4bSRob Clark static void *get_vaddr(struct drm_gem_object *obj, unsigned madv) 571c8afe684SRob Clark { 5720e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 5730e08270aSSushmita Susheelendra int ret = 0; 5740e08270aSSushmita Susheelendra 5758b6b7d84SDaniel Vetter if (obj->import_attach) 5768b6b7d84SDaniel Vetter return ERR_PTR(-ENODEV); 5778b6b7d84SDaniel Vetter 5780e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 5790e08270aSSushmita Susheelendra 580fad33f4bSRob Clark if (WARN_ON(msm_obj->madv > madv)) { 5816a41da17SMamta Shukla DRM_DEV_ERROR(obj->dev->dev, "Invalid madv state: %u vs %u\n", 582fad33f4bSRob Clark msm_obj->madv, madv); 5830e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5840e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 585c8afe684SRob Clark } 586c8afe684SRob Clark 5870e08270aSSushmita Susheelendra /* increment vmap_count *before* vmap() call, so shrinker can 5880e08270aSSushmita Susheelendra * check vmap_count (is_vunmapable()) outside of msm_obj->lock. 5890e08270aSSushmita Susheelendra * This guarantees that we won't try to msm_gem_vunmap() this 5900e08270aSSushmita Susheelendra * same object from within the vmap() call (while we already 5910e08270aSSushmita Susheelendra * hold msm_obj->lock) 5920e08270aSSushmita Susheelendra */ 5930e08270aSSushmita Susheelendra msm_obj->vmap_count++; 5940e08270aSSushmita Susheelendra 5950e08270aSSushmita Susheelendra if (!msm_obj->vaddr) { 5960e08270aSSushmita Susheelendra struct page **pages = get_pages(obj); 5970e08270aSSushmita Susheelendra if (IS_ERR(pages)) { 5980e08270aSSushmita Susheelendra ret = PTR_ERR(pages); 5990e08270aSSushmita Susheelendra goto fail; 6000e08270aSSushmita Susheelendra } 6010e08270aSSushmita Susheelendra msm_obj->vaddr = vmap(pages, obj->size >> PAGE_SHIFT, 6020e08270aSSushmita Susheelendra VM_MAP, pgprot_writecombine(PAGE_KERNEL)); 6030e08270aSSushmita Susheelendra if (msm_obj->vaddr == NULL) { 6040e08270aSSushmita Susheelendra ret = -ENOMEM; 6050e08270aSSushmita Susheelendra goto fail; 6060e08270aSSushmita Susheelendra } 6070e08270aSSushmita Susheelendra } 6080e08270aSSushmita Susheelendra 6090e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 6100e08270aSSushmita Susheelendra return msm_obj->vaddr; 6110e08270aSSushmita Susheelendra 6120e08270aSSushmita Susheelendra fail: 613e1e9db2cSRob Clark msm_obj->vmap_count--; 6140e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 6150e08270aSSushmita Susheelendra return ERR_PTR(ret); 61618f23049SRob Clark } 61718f23049SRob Clark 618fad33f4bSRob Clark void *msm_gem_get_vaddr(struct drm_gem_object *obj) 619fad33f4bSRob Clark { 620fad33f4bSRob Clark return get_vaddr(obj, MSM_MADV_WILLNEED); 621fad33f4bSRob Clark } 622fad33f4bSRob Clark 623fad33f4bSRob Clark /* 624fad33f4bSRob Clark * Don't use this! It is for the very special case of dumping 625fad33f4bSRob Clark * submits from GPU hangs or faults, were the bo may already 626fad33f4bSRob Clark * be MSM_MADV_DONTNEED, but we know the buffer is still on the 627fad33f4bSRob Clark * active list. 628fad33f4bSRob Clark */ 629fad33f4bSRob Clark void *msm_gem_get_vaddr_active(struct drm_gem_object *obj) 630fad33f4bSRob Clark { 631fad33f4bSRob Clark return get_vaddr(obj, __MSM_MADV_PURGED); 632fad33f4bSRob Clark } 633fad33f4bSRob Clark 63418f23049SRob Clark void msm_gem_put_vaddr(struct drm_gem_object *obj) 63518f23049SRob Clark { 6360e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 6370e08270aSSushmita Susheelendra 6380e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 6390e08270aSSushmita Susheelendra WARN_ON(msm_obj->vmap_count < 1); 6400e08270aSSushmita Susheelendra msm_obj->vmap_count--; 6410e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 64218f23049SRob Clark } 64318f23049SRob Clark 6444cd33c48SRob Clark /* Update madvise status, returns true if not purged, else 6454cd33c48SRob Clark * false or -errno. 6464cd33c48SRob Clark */ 6474cd33c48SRob Clark int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv) 6484cd33c48SRob Clark { 6494cd33c48SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 6504cd33c48SRob Clark 6510e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 6520e08270aSSushmita Susheelendra 6534cd33c48SRob Clark WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex)); 6544cd33c48SRob Clark 6554cd33c48SRob Clark if (msm_obj->madv != __MSM_MADV_PURGED) 6564cd33c48SRob Clark msm_obj->madv = madv; 6574cd33c48SRob Clark 6580e08270aSSushmita Susheelendra madv = msm_obj->madv; 6590e08270aSSushmita Susheelendra 6600e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 6610e08270aSSushmita Susheelendra 6620e08270aSSushmita Susheelendra return (madv != __MSM_MADV_PURGED); 6634cd33c48SRob Clark } 6644cd33c48SRob Clark 6650e08270aSSushmita Susheelendra void msm_gem_purge(struct drm_gem_object *obj, enum msm_gem_lock subclass) 66668209390SRob Clark { 66768209390SRob Clark struct drm_device *dev = obj->dev; 66868209390SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 66968209390SRob Clark 67068209390SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 67168209390SRob Clark WARN_ON(!is_purgeable(msm_obj)); 67268209390SRob Clark WARN_ON(obj->import_attach); 67368209390SRob Clark 6740e08270aSSushmita Susheelendra mutex_lock_nested(&msm_obj->lock, subclass); 6750e08270aSSushmita Susheelendra 67668209390SRob Clark put_iova(obj); 67768209390SRob Clark 6780e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 67968209390SRob Clark 68068209390SRob Clark put_pages(obj); 68168209390SRob Clark 68268209390SRob Clark msm_obj->madv = __MSM_MADV_PURGED; 68368209390SRob Clark 68468209390SRob Clark drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); 68568209390SRob Clark drm_gem_free_mmap_offset(obj); 68668209390SRob Clark 68768209390SRob Clark /* Our goal here is to return as much of the memory as 68868209390SRob Clark * is possible back to the system as we are called from OOM. 68968209390SRob Clark * To do this we must instruct the shmfs to drop all of its 69068209390SRob Clark * backing pages, *now*. 69168209390SRob Clark */ 69268209390SRob Clark shmem_truncate_range(file_inode(obj->filp), 0, (loff_t)-1); 69368209390SRob Clark 69468209390SRob Clark invalidate_mapping_pages(file_inode(obj->filp)->i_mapping, 69568209390SRob Clark 0, (loff_t)-1); 6960e08270aSSushmita Susheelendra 6970e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 69868209390SRob Clark } 69968209390SRob Clark 7000e08270aSSushmita Susheelendra static void msm_gem_vunmap_locked(struct drm_gem_object *obj) 701e1e9db2cSRob Clark { 702e1e9db2cSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 703e1e9db2cSRob Clark 7040e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 7050e08270aSSushmita Susheelendra 706e1e9db2cSRob Clark if (!msm_obj->vaddr || WARN_ON(!is_vunmapable(msm_obj))) 707e1e9db2cSRob Clark return; 708e1e9db2cSRob Clark 709e1e9db2cSRob Clark vunmap(msm_obj->vaddr); 710e1e9db2cSRob Clark msm_obj->vaddr = NULL; 711e1e9db2cSRob Clark } 712e1e9db2cSRob Clark 7130e08270aSSushmita Susheelendra void msm_gem_vunmap(struct drm_gem_object *obj, enum msm_gem_lock subclass) 7140e08270aSSushmita Susheelendra { 7150e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 7160e08270aSSushmita Susheelendra 7170e08270aSSushmita Susheelendra mutex_lock_nested(&msm_obj->lock, subclass); 7180e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 7190e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 7200e08270aSSushmita Susheelendra } 7210e08270aSSushmita Susheelendra 722b6295f9aSRob Clark /* must be called before _move_to_active().. */ 723b6295f9aSRob Clark int msm_gem_sync_object(struct drm_gem_object *obj, 724b6295f9aSRob Clark struct msm_fence_context *fctx, bool exclusive) 725b6295f9aSRob Clark { 72652791eeeSChristian König struct dma_resv_list *fobj; 727f54d1867SChris Wilson struct dma_fence *fence; 728b6295f9aSRob Clark int i, ret; 729b6295f9aSRob Clark 73052791eeeSChristian König fobj = dma_resv_get_list(obj->resv); 731b6295f9aSRob Clark if (!fobj || (fobj->shared_count == 0)) { 73252791eeeSChristian König fence = dma_resv_get_excl(obj->resv); 733b6295f9aSRob Clark /* don't need to wait on our own fences, since ring is fifo */ 734b6295f9aSRob Clark if (fence && (fence->context != fctx->context)) { 735f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 736b6295f9aSRob Clark if (ret) 737b6295f9aSRob Clark return ret; 738b6295f9aSRob Clark } 739b6295f9aSRob Clark } 740b6295f9aSRob Clark 741b6295f9aSRob Clark if (!exclusive || !fobj) 742b6295f9aSRob Clark return 0; 743b6295f9aSRob Clark 744b6295f9aSRob Clark for (i = 0; i < fobj->shared_count; i++) { 745b6295f9aSRob Clark fence = rcu_dereference_protected(fobj->shared[i], 74652791eeeSChristian König dma_resv_held(obj->resv)); 747b6295f9aSRob Clark if (fence->context != fctx->context) { 748f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 749b6295f9aSRob Clark if (ret) 750b6295f9aSRob Clark return ret; 751b6295f9aSRob Clark } 752b6295f9aSRob Clark } 753b6295f9aSRob Clark 754b6295f9aSRob Clark return 0; 755b6295f9aSRob Clark } 756b6295f9aSRob Clark 7577198e6b0SRob Clark void msm_gem_move_to_active(struct drm_gem_object *obj, 758f54d1867SChris Wilson struct msm_gpu *gpu, bool exclusive, struct dma_fence *fence) 7597198e6b0SRob Clark { 7607198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 7614cd33c48SRob Clark WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED); 7627198e6b0SRob Clark msm_obj->gpu = gpu; 763b6295f9aSRob Clark if (exclusive) 76452791eeeSChristian König dma_resv_add_excl_fence(obj->resv, fence); 765bf6811f3SRob Clark else 76652791eeeSChristian König dma_resv_add_shared_fence(obj->resv, fence); 7677198e6b0SRob Clark list_del_init(&msm_obj->mm_list); 7687198e6b0SRob Clark list_add_tail(&msm_obj->mm_list, &gpu->active_list); 7697198e6b0SRob Clark } 7707198e6b0SRob Clark 7717198e6b0SRob Clark void msm_gem_move_to_inactive(struct drm_gem_object *obj) 7727198e6b0SRob Clark { 7737198e6b0SRob Clark struct drm_device *dev = obj->dev; 7747198e6b0SRob Clark struct msm_drm_private *priv = dev->dev_private; 7757198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 7767198e6b0SRob Clark 7777198e6b0SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 7787198e6b0SRob Clark 7797198e6b0SRob Clark msm_obj->gpu = NULL; 7807198e6b0SRob Clark list_del_init(&msm_obj->mm_list); 7817198e6b0SRob Clark list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 7827198e6b0SRob Clark } 7837198e6b0SRob Clark 784ba00c3f2SRob Clark int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout) 785ba00c3f2SRob Clark { 786b6295f9aSRob Clark bool write = !!(op & MSM_PREP_WRITE); 787f755e227SChris Wilson unsigned long remain = 788f755e227SChris Wilson op & MSM_PREP_NOSYNC ? 0 : timeout_to_jiffies(timeout); 789f755e227SChris Wilson long ret; 790b6295f9aSRob Clark 79152791eeeSChristian König ret = dma_resv_wait_timeout_rcu(obj->resv, write, 792f755e227SChris Wilson true, remain); 793f755e227SChris Wilson if (ret == 0) 794f755e227SChris Wilson return remain == 0 ? -EBUSY : -ETIMEDOUT; 795f755e227SChris Wilson else if (ret < 0) 796f755e227SChris Wilson return ret; 797ba00c3f2SRob Clark 7987198e6b0SRob Clark /* TODO cache maintenance */ 7997198e6b0SRob Clark 800b6295f9aSRob Clark return 0; 8017198e6b0SRob Clark } 8027198e6b0SRob Clark 8037198e6b0SRob Clark int msm_gem_cpu_fini(struct drm_gem_object *obj) 8047198e6b0SRob Clark { 8057198e6b0SRob Clark /* TODO cache maintenance */ 806c8afe684SRob Clark return 0; 807c8afe684SRob Clark } 808c8afe684SRob Clark 809c8afe684SRob Clark #ifdef CONFIG_DEBUG_FS 810f54d1867SChris Wilson static void describe_fence(struct dma_fence *fence, const char *type, 811b6295f9aSRob Clark struct seq_file *m) 812b6295f9aSRob Clark { 813f54d1867SChris Wilson if (!dma_fence_is_signaled(fence)) 814a3115621SDave Airlie seq_printf(m, "\t%9s: %s %s seq %llu\n", type, 815b6295f9aSRob Clark fence->ops->get_driver_name(fence), 816b6295f9aSRob Clark fence->ops->get_timeline_name(fence), 817b6295f9aSRob Clark fence->seqno); 818b6295f9aSRob Clark } 819b6295f9aSRob Clark 820c8afe684SRob Clark void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m) 821c8afe684SRob Clark { 822c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 82352791eeeSChristian König struct dma_resv *robj = obj->resv; 82452791eeeSChristian König struct dma_resv_list *fobj; 825f54d1867SChris Wilson struct dma_fence *fence; 8264b85f7f5SRob Clark struct msm_gem_vma *vma; 827c8afe684SRob Clark uint64_t off = drm_vma_node_start(&obj->vma_node); 8284cd33c48SRob Clark const char *madv; 829c8afe684SRob Clark 8300e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 831b6295f9aSRob Clark 8324cd33c48SRob Clark switch (msm_obj->madv) { 8334cd33c48SRob Clark case __MSM_MADV_PURGED: 8344cd33c48SRob Clark madv = " purged"; 8354cd33c48SRob Clark break; 8364cd33c48SRob Clark case MSM_MADV_DONTNEED: 8374cd33c48SRob Clark madv = " purgeable"; 8384cd33c48SRob Clark break; 8394cd33c48SRob Clark case MSM_MADV_WILLNEED: 8404cd33c48SRob Clark default: 8414cd33c48SRob Clark madv = ""; 8424cd33c48SRob Clark break; 8434cd33c48SRob Clark } 8444cd33c48SRob Clark 845575f0485SJordan Crouse seq_printf(m, "%08x: %c %2d (%2d) %08llx %p", 8467198e6b0SRob Clark msm_obj->flags, is_active(msm_obj) ? 'A' : 'I', 8472c935bc5SPeter Zijlstra obj->name, kref_read(&obj->refcount), 848667ce33eSRob Clark off, msm_obj->vaddr); 849667ce33eSRob Clark 8500815d774SJordan Crouse seq_printf(m, " %08zu %9s %-32s\n", obj->size, madv, msm_obj->name); 851667ce33eSRob Clark 852575f0485SJordan Crouse if (!list_empty(&msm_obj->vmas)) { 853575f0485SJordan Crouse 854575f0485SJordan Crouse seq_puts(m, " vmas:"); 855575f0485SJordan Crouse 856575f0485SJordan Crouse list_for_each_entry(vma, &msm_obj->vmas, list) 85790f94660SBrian Masney seq_printf(m, " [%s: %08llx,%s,inuse=%d]", 85890f94660SBrian Masney vma->aspace != NULL ? vma->aspace->name : NULL, 8597ad0e8cfSJordan Crouse vma->iova, vma->mapped ? "mapped" : "unmapped", 8607ad0e8cfSJordan Crouse vma->inuse); 861575f0485SJordan Crouse 862575f0485SJordan Crouse seq_puts(m, "\n"); 863575f0485SJordan Crouse } 864b6295f9aSRob Clark 865b6295f9aSRob Clark rcu_read_lock(); 866b6295f9aSRob Clark fobj = rcu_dereference(robj->fence); 867b6295f9aSRob Clark if (fobj) { 868b6295f9aSRob Clark unsigned int i, shared_count = fobj->shared_count; 869b6295f9aSRob Clark 870b6295f9aSRob Clark for (i = 0; i < shared_count; i++) { 871b6295f9aSRob Clark fence = rcu_dereference(fobj->shared[i]); 872b6295f9aSRob Clark describe_fence(fence, "Shared", m); 873b6295f9aSRob Clark } 874b6295f9aSRob Clark } 875b6295f9aSRob Clark 876b6295f9aSRob Clark fence = rcu_dereference(robj->fence_excl); 877b6295f9aSRob Clark if (fence) 878b6295f9aSRob Clark describe_fence(fence, "Exclusive", m); 879b6295f9aSRob Clark rcu_read_unlock(); 8800e08270aSSushmita Susheelendra 8810e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 882c8afe684SRob Clark } 883c8afe684SRob Clark 884c8afe684SRob Clark void msm_gem_describe_objects(struct list_head *list, struct seq_file *m) 885c8afe684SRob Clark { 886c8afe684SRob Clark struct msm_gem_object *msm_obj; 887c8afe684SRob Clark int count = 0; 888c8afe684SRob Clark size_t size = 0; 889c8afe684SRob Clark 8900815d774SJordan Crouse seq_puts(m, " flags id ref offset kaddr size madv name\n"); 891c8afe684SRob Clark list_for_each_entry(msm_obj, list, mm_list) { 892c8afe684SRob Clark struct drm_gem_object *obj = &msm_obj->base; 893575f0485SJordan Crouse seq_puts(m, " "); 894c8afe684SRob Clark msm_gem_describe(obj, m); 895c8afe684SRob Clark count++; 896c8afe684SRob Clark size += obj->size; 897c8afe684SRob Clark } 898c8afe684SRob Clark 899c8afe684SRob Clark seq_printf(m, "Total %d objects, %zu bytes\n", count, size); 900c8afe684SRob Clark } 901c8afe684SRob Clark #endif 902c8afe684SRob Clark 903eecd7fd8SEmil Velikov /* don't call directly! Use drm_gem_object_put_locked() and friends */ 904c8afe684SRob Clark void msm_gem_free_object(struct drm_gem_object *obj) 905c8afe684SRob Clark { 906c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 90748e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 90848e7f183SKristian H. Kristensen struct msm_drm_private *priv = dev->dev_private; 90948e7f183SKristian H. Kristensen 91048e7f183SKristian H. Kristensen if (llist_add(&msm_obj->freed, &priv->free_list)) 91148e7f183SKristian H. Kristensen queue_work(priv->wq, &priv->free_work); 91248e7f183SKristian H. Kristensen } 91348e7f183SKristian H. Kristensen 91448e7f183SKristian H. Kristensen static void free_object(struct msm_gem_object *msm_obj) 91548e7f183SKristian H. Kristensen { 91648e7f183SKristian H. Kristensen struct drm_gem_object *obj = &msm_obj->base; 91748e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 918c8afe684SRob Clark 919c8afe684SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 920c8afe684SRob Clark 9217198e6b0SRob Clark /* object should not be on active list: */ 9227198e6b0SRob Clark WARN_ON(is_active(msm_obj)); 9237198e6b0SRob Clark 924c8afe684SRob Clark list_del(&msm_obj->mm_list); 925c8afe684SRob Clark 9260e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 9270e08270aSSushmita Susheelendra 9284fe5f65eSRob Clark put_iova(obj); 929c8afe684SRob Clark 93005b84911SRob Clark if (obj->import_attach) { 9318b6b7d84SDaniel Vetter WARN_ON(msm_obj->vaddr); 93205b84911SRob Clark 93305b84911SRob Clark /* Don't drop the pages for imported dmabuf, as they are not 93405b84911SRob Clark * ours, just free the array we allocated: 93505b84911SRob Clark */ 93605b84911SRob Clark if (msm_obj->pages) 9372098105eSMichal Hocko kvfree(msm_obj->pages); 93805b84911SRob Clark 939f28730c8Sjilai wang drm_prime_gem_destroy(obj, msm_obj->sgt); 94005b84911SRob Clark } else { 9410e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 942c8afe684SRob Clark put_pages(obj); 94305b84911SRob Clark } 944c8afe684SRob Clark 945c8afe684SRob Clark drm_gem_object_release(obj); 946c8afe684SRob Clark 9470e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 948c8afe684SRob Clark kfree(msm_obj); 949c8afe684SRob Clark } 950c8afe684SRob Clark 95148e7f183SKristian H. Kristensen void msm_gem_free_work(struct work_struct *work) 95248e7f183SKristian H. Kristensen { 95348e7f183SKristian H. Kristensen struct msm_drm_private *priv = 95448e7f183SKristian H. Kristensen container_of(work, struct msm_drm_private, free_work); 95548e7f183SKristian H. Kristensen struct drm_device *dev = priv->dev; 95648e7f183SKristian H. Kristensen struct llist_node *freed; 95748e7f183SKristian H. Kristensen struct msm_gem_object *msm_obj, *next; 95848e7f183SKristian H. Kristensen 95948e7f183SKristian H. Kristensen while ((freed = llist_del_all(&priv->free_list))) { 96048e7f183SKristian H. Kristensen 96148e7f183SKristian H. Kristensen mutex_lock(&dev->struct_mutex); 96248e7f183SKristian H. Kristensen 96348e7f183SKristian H. Kristensen llist_for_each_entry_safe(msm_obj, next, 96448e7f183SKristian H. Kristensen freed, freed) 96548e7f183SKristian H. Kristensen free_object(msm_obj); 96648e7f183SKristian H. Kristensen 96748e7f183SKristian H. Kristensen mutex_unlock(&dev->struct_mutex); 96848e7f183SKristian H. Kristensen 96948e7f183SKristian H. Kristensen if (need_resched()) 97048e7f183SKristian H. Kristensen break; 97148e7f183SKristian H. Kristensen } 97248e7f183SKristian H. Kristensen } 97348e7f183SKristian H. Kristensen 974c8afe684SRob Clark /* convenience method to construct a GEM buffer object, and userspace handle */ 975c8afe684SRob Clark int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file, 9760815d774SJordan Crouse uint32_t size, uint32_t flags, uint32_t *handle, 9770815d774SJordan Crouse char *name) 978c8afe684SRob Clark { 979c8afe684SRob Clark struct drm_gem_object *obj; 980c8afe684SRob Clark int ret; 981c8afe684SRob Clark 982c8afe684SRob Clark obj = msm_gem_new(dev, size, flags); 983c8afe684SRob Clark 984c8afe684SRob Clark if (IS_ERR(obj)) 985c8afe684SRob Clark return PTR_ERR(obj); 986c8afe684SRob Clark 9870815d774SJordan Crouse if (name) 9880815d774SJordan Crouse msm_gem_object_set_name(obj, "%s", name); 9890815d774SJordan Crouse 990c8afe684SRob Clark ret = drm_gem_handle_create(file, obj, handle); 991c8afe684SRob Clark 992c8afe684SRob Clark /* drop reference from allocate - handle holds it now */ 993f7d33950SEmil Velikov drm_gem_object_put(obj); 994c8afe684SRob Clark 995c8afe684SRob Clark return ret; 996c8afe684SRob Clark } 997c8afe684SRob Clark 99805b84911SRob Clark static int msm_gem_new_impl(struct drm_device *dev, 99905b84911SRob Clark uint32_t size, uint32_t flags, 10003cbdc8d8SAkhil P Oommen struct drm_gem_object **obj) 1001c8afe684SRob Clark { 1002c8afe684SRob Clark struct msm_gem_object *msm_obj; 1003c8afe684SRob Clark 1004c8afe684SRob Clark switch (flags & MSM_BO_CACHE_MASK) { 1005c8afe684SRob Clark case MSM_BO_UNCACHED: 1006c8afe684SRob Clark case MSM_BO_CACHED: 1007c8afe684SRob Clark case MSM_BO_WC: 1008c8afe684SRob Clark break; 1009c8afe684SRob Clark default: 10106a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "invalid cache flag: %x\n", 1011c8afe684SRob Clark (flags & MSM_BO_CACHE_MASK)); 101205b84911SRob Clark return -EINVAL; 1013c8afe684SRob Clark } 1014c8afe684SRob Clark 1015667ce33eSRob Clark msm_obj = kzalloc(sizeof(*msm_obj), GFP_KERNEL); 101605b84911SRob Clark if (!msm_obj) 101705b84911SRob Clark return -ENOMEM; 1018c8afe684SRob Clark 10190e08270aSSushmita Susheelendra mutex_init(&msm_obj->lock); 10200e08270aSSushmita Susheelendra 1021c8afe684SRob Clark msm_obj->flags = flags; 10224cd33c48SRob Clark msm_obj->madv = MSM_MADV_WILLNEED; 1023c8afe684SRob Clark 10247198e6b0SRob Clark INIT_LIST_HEAD(&msm_obj->submit_entry); 10254b85f7f5SRob Clark INIT_LIST_HEAD(&msm_obj->vmas); 10264b85f7f5SRob Clark 102705b84911SRob Clark *obj = &msm_obj->base; 102805b84911SRob Clark 102905b84911SRob Clark return 0; 103005b84911SRob Clark } 103105b84911SRob Clark 10320e08270aSSushmita Susheelendra static struct drm_gem_object *_msm_gem_new(struct drm_device *dev, 10330e08270aSSushmita Susheelendra uint32_t size, uint32_t flags, bool struct_mutex_locked) 103405b84911SRob Clark { 1035f4839bd5SRob Clark struct msm_drm_private *priv = dev->dev_private; 10363cbdc8d8SAkhil P Oommen struct msm_gem_object *msm_obj; 1037871d812aSRob Clark struct drm_gem_object *obj = NULL; 1038f4839bd5SRob Clark bool use_vram = false; 103905b84911SRob Clark int ret; 104005b84911SRob Clark 104105b84911SRob Clark size = PAGE_ALIGN(size); 104205b84911SRob Clark 1043c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) 1044f4839bd5SRob Clark use_vram = true; 104586f46f25SJonathan Marek else if ((flags & (MSM_BO_STOLEN | MSM_BO_SCANOUT)) && priv->vram.size) 1046f4839bd5SRob Clark use_vram = true; 1047f4839bd5SRob Clark 1048f4839bd5SRob Clark if (WARN_ON(use_vram && !priv->vram.size)) 1049f4839bd5SRob Clark return ERR_PTR(-EINVAL); 1050f4839bd5SRob Clark 10511a5dff5dSJordan Crouse /* Disallow zero sized objects as they make the underlying 10521a5dff5dSJordan Crouse * infrastructure grumpy 10531a5dff5dSJordan Crouse */ 10541a5dff5dSJordan Crouse if (size == 0) 10551a5dff5dSJordan Crouse return ERR_PTR(-EINVAL); 10561a5dff5dSJordan Crouse 10573cbdc8d8SAkhil P Oommen ret = msm_gem_new_impl(dev, size, flags, &obj); 105805b84911SRob Clark if (ret) 105905b84911SRob Clark goto fail; 106005b84911SRob Clark 10613cbdc8d8SAkhil P Oommen msm_obj = to_msm_bo(obj); 10623cbdc8d8SAkhil P Oommen 1063f4839bd5SRob Clark if (use_vram) { 10644b85f7f5SRob Clark struct msm_gem_vma *vma; 1065f4839bd5SRob Clark struct page **pages; 1066b3949a9aSHans Verkuil 1067b3949a9aSHans Verkuil mutex_lock(&msm_obj->lock); 1068f4839bd5SRob Clark 10694b85f7f5SRob Clark vma = add_vma(obj, NULL); 1070b3949a9aSHans Verkuil mutex_unlock(&msm_obj->lock); 10714b85f7f5SRob Clark if (IS_ERR(vma)) { 10724b85f7f5SRob Clark ret = PTR_ERR(vma); 10734b85f7f5SRob Clark goto fail; 10744b85f7f5SRob Clark } 10754b85f7f5SRob Clark 10764b85f7f5SRob Clark to_msm_bo(obj)->vram_node = &vma->node; 10774b85f7f5SRob Clark 1078f4839bd5SRob Clark drm_gem_private_object_init(dev, obj, size); 1079f4839bd5SRob Clark 1080f4839bd5SRob Clark pages = get_pages(obj); 1081f4839bd5SRob Clark if (IS_ERR(pages)) { 1082f4839bd5SRob Clark ret = PTR_ERR(pages); 1083f4839bd5SRob Clark goto fail; 1084f4839bd5SRob Clark } 10854b85f7f5SRob Clark 10864b85f7f5SRob Clark vma->iova = physaddr(obj); 1087f4839bd5SRob Clark } else { 108805b84911SRob Clark ret = drm_gem_object_init(dev, obj, size); 108905b84911SRob Clark if (ret) 109005b84911SRob Clark goto fail; 10910abdba47SLucas Stach /* 10920abdba47SLucas Stach * Our buffers are kept pinned, so allocating them from the 10930abdba47SLucas Stach * MOVABLE zone is a really bad idea, and conflicts with CMA. 10940abdba47SLucas Stach * See comments above new_inode() why this is required _and_ 10950abdba47SLucas Stach * expected if you're going to pin these pages. 10960abdba47SLucas Stach */ 10970abdba47SLucas Stach mapping_set_gfp_mask(obj->filp->f_mapping, GFP_HIGHUSER); 1098871d812aSRob Clark } 109905b84911SRob Clark 11003cbdc8d8SAkhil P Oommen if (struct_mutex_locked) { 11013cbdc8d8SAkhil P Oommen WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 11023cbdc8d8SAkhil P Oommen list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 11033cbdc8d8SAkhil P Oommen } else { 11043cbdc8d8SAkhil P Oommen mutex_lock(&dev->struct_mutex); 11053cbdc8d8SAkhil P Oommen list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 11063cbdc8d8SAkhil P Oommen mutex_unlock(&dev->struct_mutex); 11073cbdc8d8SAkhil P Oommen } 11083cbdc8d8SAkhil P Oommen 110905b84911SRob Clark return obj; 111005b84911SRob Clark 111105b84911SRob Clark fail: 1112f7d33950SEmil Velikov drm_gem_object_put(obj); 111305b84911SRob Clark return ERR_PTR(ret); 111405b84911SRob Clark } 111505b84911SRob Clark 11160e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev, 11170e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 11180e08270aSSushmita Susheelendra { 11190e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, true); 11200e08270aSSushmita Susheelendra } 11210e08270aSSushmita Susheelendra 11220e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new(struct drm_device *dev, 11230e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 11240e08270aSSushmita Susheelendra { 11250e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, false); 11260e08270aSSushmita Susheelendra } 11270e08270aSSushmita Susheelendra 112805b84911SRob Clark struct drm_gem_object *msm_gem_import(struct drm_device *dev, 112979f0e202SRob Clark struct dma_buf *dmabuf, struct sg_table *sgt) 113005b84911SRob Clark { 11313cbdc8d8SAkhil P Oommen struct msm_drm_private *priv = dev->dev_private; 113205b84911SRob Clark struct msm_gem_object *msm_obj; 113305b84911SRob Clark struct drm_gem_object *obj; 113479f0e202SRob Clark uint32_t size; 113505b84911SRob Clark int ret, npages; 113605b84911SRob Clark 1137871d812aSRob Clark /* if we don't have IOMMU, don't bother pretending we can import: */ 1138c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) { 11396a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "cannot import without IOMMU\n"); 1140871d812aSRob Clark return ERR_PTR(-EINVAL); 1141871d812aSRob Clark } 1142871d812aSRob Clark 114379f0e202SRob Clark size = PAGE_ALIGN(dmabuf->size); 114405b84911SRob Clark 11453cbdc8d8SAkhil P Oommen ret = msm_gem_new_impl(dev, size, MSM_BO_WC, &obj); 114605b84911SRob Clark if (ret) 114705b84911SRob Clark goto fail; 114805b84911SRob Clark 114905b84911SRob Clark drm_gem_private_object_init(dev, obj, size); 115005b84911SRob Clark 115105b84911SRob Clark npages = size / PAGE_SIZE; 115205b84911SRob Clark 115305b84911SRob Clark msm_obj = to_msm_bo(obj); 11540e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 115505b84911SRob Clark msm_obj->sgt = sgt; 11562098105eSMichal Hocko msm_obj->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 115705b84911SRob Clark if (!msm_obj->pages) { 11580e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 115905b84911SRob Clark ret = -ENOMEM; 116005b84911SRob Clark goto fail; 116105b84911SRob Clark } 116205b84911SRob Clark 116305b84911SRob Clark ret = drm_prime_sg_to_page_addr_arrays(sgt, msm_obj->pages, NULL, npages); 11640e08270aSSushmita Susheelendra if (ret) { 11650e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 116605b84911SRob Clark goto fail; 11670e08270aSSushmita Susheelendra } 116805b84911SRob Clark 11690e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 11703cbdc8d8SAkhil P Oommen 11713cbdc8d8SAkhil P Oommen mutex_lock(&dev->struct_mutex); 11723cbdc8d8SAkhil P Oommen list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 11733cbdc8d8SAkhil P Oommen mutex_unlock(&dev->struct_mutex); 11743cbdc8d8SAkhil P Oommen 1175c8afe684SRob Clark return obj; 1176c8afe684SRob Clark 1177c8afe684SRob Clark fail: 1178f7d33950SEmil Velikov drm_gem_object_put(obj); 1179c8afe684SRob Clark return ERR_PTR(ret); 1180c8afe684SRob Clark } 11818223286dSJordan Crouse 11828223286dSJordan Crouse static void *_msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 11838223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 11848223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova, bool locked) 11858223286dSJordan Crouse { 11868223286dSJordan Crouse void *vaddr; 11878223286dSJordan Crouse struct drm_gem_object *obj = _msm_gem_new(dev, size, flags, locked); 11888223286dSJordan Crouse int ret; 11898223286dSJordan Crouse 11908223286dSJordan Crouse if (IS_ERR(obj)) 11918223286dSJordan Crouse return ERR_CAST(obj); 11928223286dSJordan Crouse 11938223286dSJordan Crouse if (iova) { 11949fe041f6SJordan Crouse ret = msm_gem_get_and_pin_iova(obj, aspace, iova); 119593f7abf1SJordan Crouse if (ret) 119693f7abf1SJordan Crouse goto err; 11978223286dSJordan Crouse } 11988223286dSJordan Crouse 11998223286dSJordan Crouse vaddr = msm_gem_get_vaddr(obj); 1200c9811d0fSWei Yongjun if (IS_ERR(vaddr)) { 12017ad0e8cfSJordan Crouse msm_gem_unpin_iova(obj, aspace); 120293f7abf1SJordan Crouse ret = PTR_ERR(vaddr); 120393f7abf1SJordan Crouse goto err; 12048223286dSJordan Crouse } 12058223286dSJordan Crouse 12068223286dSJordan Crouse if (bo) 12078223286dSJordan Crouse *bo = obj; 12088223286dSJordan Crouse 12098223286dSJordan Crouse return vaddr; 121093f7abf1SJordan Crouse err: 121193f7abf1SJordan Crouse if (locked) 1212eecd7fd8SEmil Velikov drm_gem_object_put_locked(obj); 121393f7abf1SJordan Crouse else 1214f7d33950SEmil Velikov drm_gem_object_put(obj); 121593f7abf1SJordan Crouse 121693f7abf1SJordan Crouse return ERR_PTR(ret); 121793f7abf1SJordan Crouse 12188223286dSJordan Crouse } 12198223286dSJordan Crouse 12208223286dSJordan Crouse void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 12218223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 12228223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 12238223286dSJordan Crouse { 12248223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, false); 12258223286dSJordan Crouse } 12268223286dSJordan Crouse 12278223286dSJordan Crouse void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size, 12288223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 12298223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 12308223286dSJordan Crouse { 12318223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, true); 12328223286dSJordan Crouse } 12331e29dff0SJordan Crouse 12341e29dff0SJordan Crouse void msm_gem_kernel_put(struct drm_gem_object *bo, 12351e29dff0SJordan Crouse struct msm_gem_address_space *aspace, bool locked) 12361e29dff0SJordan Crouse { 12371e29dff0SJordan Crouse if (IS_ERR_OR_NULL(bo)) 12381e29dff0SJordan Crouse return; 12391e29dff0SJordan Crouse 12401e29dff0SJordan Crouse msm_gem_put_vaddr(bo); 12417ad0e8cfSJordan Crouse msm_gem_unpin_iova(bo, aspace); 12421e29dff0SJordan Crouse 12431e29dff0SJordan Crouse if (locked) 1244eecd7fd8SEmil Velikov drm_gem_object_put_locked(bo); 12451e29dff0SJordan Crouse else 1246f7d33950SEmil Velikov drm_gem_object_put(bo); 12471e29dff0SJordan Crouse } 12480815d774SJordan Crouse 12490815d774SJordan Crouse void msm_gem_object_set_name(struct drm_gem_object *bo, const char *fmt, ...) 12500815d774SJordan Crouse { 12510815d774SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(bo); 12520815d774SJordan Crouse va_list ap; 12530815d774SJordan Crouse 12540815d774SJordan Crouse if (!fmt) 12550815d774SJordan Crouse return; 12560815d774SJordan Crouse 12570815d774SJordan Crouse va_start(ap, fmt); 12580815d774SJordan Crouse vsnprintf(msm_obj->name, sizeof(msm_obj->name), fmt, ap); 12590815d774SJordan Crouse va_end(ap); 12600815d774SJordan Crouse } 1261