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 7c8afe684SRob Clark #include <linux/spinlock.h> 8c8afe684SRob Clark #include <linux/shmem_fs.h> 905b84911SRob Clark #include <linux/dma-buf.h> 1001c8f1c4SDan Williams #include <linux/pfn_t.h> 11c8afe684SRob Clark 12c8afe684SRob Clark #include "msm_drv.h" 13fde5de6cSRob Clark #include "msm_fence.h" 14c8afe684SRob Clark #include "msm_gem.h" 157198e6b0SRob Clark #include "msm_gpu.h" 16871d812aSRob Clark #include "msm_mmu.h" 17c8afe684SRob Clark 180e08270aSSushmita Susheelendra static void msm_gem_vunmap_locked(struct drm_gem_object *obj); 190e08270aSSushmita Susheelendra 200e08270aSSushmita Susheelendra 21871d812aSRob Clark static dma_addr_t physaddr(struct drm_gem_object *obj) 22871d812aSRob Clark { 23871d812aSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 24871d812aSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 25871d812aSRob Clark return (((dma_addr_t)msm_obj->vram_node->start) << PAGE_SHIFT) + 26871d812aSRob Clark priv->vram.paddr; 27871d812aSRob Clark } 28871d812aSRob Clark 29072f1f91SRob Clark static bool use_pages(struct drm_gem_object *obj) 30072f1f91SRob Clark { 31072f1f91SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 32072f1f91SRob Clark return !msm_obj->vram_node; 33072f1f91SRob Clark } 34072f1f91SRob Clark 353de433c5SRob Clark /* 363de433c5SRob Clark * Cache sync.. this is a bit over-complicated, to fit dma-mapping 373de433c5SRob Clark * API. Really GPU cache is out of scope here (handled on cmdstream) 383de433c5SRob Clark * and all we need to do is invalidate newly allocated pages before 393de433c5SRob Clark * mapping to CPU as uncached/writecombine. 403de433c5SRob Clark * 413de433c5SRob Clark * On top of this, we have the added headache, that depending on 423de433c5SRob Clark * display generation, the display's iommu may be wired up to either 433de433c5SRob Clark * the toplevel drm device (mdss), or to the mdp sub-node, meaning 443de433c5SRob Clark * that here we either have dma-direct or iommu ops. 453de433c5SRob Clark * 463de433c5SRob Clark * Let this be a cautionary tail of abstraction gone wrong. 473de433c5SRob Clark */ 483de433c5SRob Clark 493de433c5SRob Clark static void sync_for_device(struct msm_gem_object *msm_obj) 503de433c5SRob Clark { 513de433c5SRob Clark struct device *dev = msm_obj->base.dev->dev; 523de433c5SRob Clark 533de433c5SRob Clark if (get_dma_ops(dev)) { 543de433c5SRob Clark dma_sync_sg_for_device(dev, msm_obj->sgt->sgl, 553de433c5SRob Clark msm_obj->sgt->nents, DMA_BIDIRECTIONAL); 563de433c5SRob Clark } else { 573de433c5SRob Clark dma_map_sg(dev, msm_obj->sgt->sgl, 583de433c5SRob Clark msm_obj->sgt->nents, DMA_BIDIRECTIONAL); 593de433c5SRob Clark } 603de433c5SRob Clark } 613de433c5SRob Clark 623de433c5SRob Clark static void sync_for_cpu(struct msm_gem_object *msm_obj) 633de433c5SRob Clark { 643de433c5SRob Clark struct device *dev = msm_obj->base.dev->dev; 653de433c5SRob Clark 663de433c5SRob Clark if (get_dma_ops(dev)) { 673de433c5SRob Clark dma_sync_sg_for_cpu(dev, msm_obj->sgt->sgl, 683de433c5SRob Clark msm_obj->sgt->nents, DMA_BIDIRECTIONAL); 693de433c5SRob Clark } else { 703de433c5SRob Clark dma_unmap_sg(dev, msm_obj->sgt->sgl, 713de433c5SRob Clark msm_obj->sgt->nents, DMA_BIDIRECTIONAL); 723de433c5SRob Clark } 733de433c5SRob Clark } 743de433c5SRob Clark 75871d812aSRob Clark /* allocate pages from VRAM carveout, used when no IOMMU: */ 760e08270aSSushmita Susheelendra static struct page **get_pages_vram(struct drm_gem_object *obj, int npages) 77871d812aSRob Clark { 78871d812aSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 79871d812aSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 80871d812aSRob Clark dma_addr_t paddr; 81871d812aSRob Clark struct page **p; 82871d812aSRob Clark int ret, i; 83871d812aSRob Clark 842098105eSMichal Hocko p = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 85871d812aSRob Clark if (!p) 86871d812aSRob Clark return ERR_PTR(-ENOMEM); 87871d812aSRob Clark 880e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 894e64e553SChris Wilson ret = drm_mm_insert_node(&priv->vram.mm, msm_obj->vram_node, npages); 900e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 91871d812aSRob Clark if (ret) { 922098105eSMichal Hocko kvfree(p); 93871d812aSRob Clark return ERR_PTR(ret); 94871d812aSRob Clark } 95871d812aSRob Clark 96871d812aSRob Clark paddr = physaddr(obj); 97871d812aSRob Clark for (i = 0; i < npages; i++) { 98871d812aSRob Clark p[i] = phys_to_page(paddr); 99871d812aSRob Clark paddr += PAGE_SIZE; 100871d812aSRob Clark } 101871d812aSRob Clark 102871d812aSRob Clark return p; 103871d812aSRob Clark } 104c8afe684SRob Clark 105c8afe684SRob Clark static struct page **get_pages(struct drm_gem_object *obj) 106c8afe684SRob Clark { 107c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 108c8afe684SRob Clark 109c8afe684SRob Clark if (!msm_obj->pages) { 110c8afe684SRob Clark struct drm_device *dev = obj->dev; 111871d812aSRob Clark struct page **p; 112c8afe684SRob Clark int npages = obj->size >> PAGE_SHIFT; 113c8afe684SRob Clark 114072f1f91SRob Clark if (use_pages(obj)) 1150cdbe8acSDavid Herrmann p = drm_gem_get_pages(obj); 116871d812aSRob Clark else 117871d812aSRob Clark p = get_pages_vram(obj, npages); 118871d812aSRob Clark 119c8afe684SRob Clark if (IS_ERR(p)) { 1206a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not get pages: %ld\n", 121c8afe684SRob Clark PTR_ERR(p)); 122c8afe684SRob Clark return p; 123c8afe684SRob Clark } 124c8afe684SRob Clark 12562e3a3e3SPrakash Kamliya msm_obj->pages = p; 12662e3a3e3SPrakash Kamliya 127c8afe684SRob Clark msm_obj->sgt = drm_prime_pages_to_sg(p, npages); 1281f70e079SWei Yongjun if (IS_ERR(msm_obj->sgt)) { 12962e3a3e3SPrakash Kamliya void *ptr = ERR_CAST(msm_obj->sgt); 130c8afe684SRob Clark 1316a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "failed to allocate sgt\n"); 13262e3a3e3SPrakash Kamliya msm_obj->sgt = NULL; 13362e3a3e3SPrakash Kamliya return ptr; 13462e3a3e3SPrakash Kamliya } 135c8afe684SRob Clark 136c8afe684SRob Clark /* For non-cached buffers, ensure the new pages are clean 137c8afe684SRob Clark * because display controller, GPU, etc. are not coherent: 138c8afe684SRob Clark */ 139c8afe684SRob Clark if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) 1403de433c5SRob Clark sync_for_device(msm_obj); 141c8afe684SRob Clark } 142c8afe684SRob Clark 143c8afe684SRob Clark return msm_obj->pages; 144c8afe684SRob Clark } 145c8afe684SRob Clark 1460e08270aSSushmita Susheelendra static void put_pages_vram(struct drm_gem_object *obj) 1470e08270aSSushmita Susheelendra { 1480e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 1490e08270aSSushmita Susheelendra struct msm_drm_private *priv = obj->dev->dev_private; 1500e08270aSSushmita Susheelendra 1510e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 1520e08270aSSushmita Susheelendra drm_mm_remove_node(msm_obj->vram_node); 1530e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 1540e08270aSSushmita Susheelendra 1550e08270aSSushmita Susheelendra kvfree(msm_obj->pages); 1560e08270aSSushmita Susheelendra } 1570e08270aSSushmita Susheelendra 158c8afe684SRob Clark static void put_pages(struct drm_gem_object *obj) 159c8afe684SRob Clark { 160c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 161c8afe684SRob Clark 162c8afe684SRob Clark if (msm_obj->pages) { 1633976626eSBen Hutchings if (msm_obj->sgt) { 1643976626eSBen Hutchings /* For non-cached buffers, ensure the new 1653976626eSBen Hutchings * pages are clean because display controller, 1663976626eSBen Hutchings * GPU, etc. are not coherent: 167c8afe684SRob Clark */ 168c8afe684SRob Clark if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) 1693de433c5SRob Clark sync_for_cpu(msm_obj); 17062e3a3e3SPrakash Kamliya 171c8afe684SRob Clark sg_free_table(msm_obj->sgt); 172c8afe684SRob Clark kfree(msm_obj->sgt); 1733976626eSBen Hutchings } 174c8afe684SRob Clark 175072f1f91SRob Clark if (use_pages(obj)) 176c8afe684SRob Clark drm_gem_put_pages(obj, msm_obj->pages, true, false); 1770e08270aSSushmita Susheelendra else 1780e08270aSSushmita Susheelendra put_pages_vram(obj); 179871d812aSRob Clark 180c8afe684SRob Clark msm_obj->pages = NULL; 181c8afe684SRob Clark } 182c8afe684SRob Clark } 183c8afe684SRob Clark 18405b84911SRob Clark struct page **msm_gem_get_pages(struct drm_gem_object *obj) 18505b84911SRob Clark { 1860e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 18705b84911SRob Clark struct page **p; 1880e08270aSSushmita Susheelendra 1890e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 1900e08270aSSushmita Susheelendra 1910e08270aSSushmita Susheelendra if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 1920e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 1930e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 1940e08270aSSushmita Susheelendra } 1950e08270aSSushmita Susheelendra 19605b84911SRob Clark p = get_pages(obj); 1970e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 19805b84911SRob Clark return p; 19905b84911SRob Clark } 20005b84911SRob Clark 20105b84911SRob Clark void msm_gem_put_pages(struct drm_gem_object *obj) 20205b84911SRob Clark { 20305b84911SRob Clark /* when we start tracking the pin count, then do something here */ 20405b84911SRob Clark } 20505b84911SRob Clark 206c8afe684SRob Clark int msm_gem_mmap_obj(struct drm_gem_object *obj, 207c8afe684SRob Clark struct vm_area_struct *vma) 208c8afe684SRob Clark { 209c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 210c8afe684SRob Clark 211c8afe684SRob Clark vma->vm_flags &= ~VM_PFNMAP; 212c8afe684SRob Clark vma->vm_flags |= VM_MIXEDMAP; 213c8afe684SRob Clark 214c8afe684SRob Clark if (msm_obj->flags & MSM_BO_WC) { 215c8afe684SRob Clark vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); 216c8afe684SRob Clark } else if (msm_obj->flags & MSM_BO_UNCACHED) { 217c8afe684SRob Clark vma->vm_page_prot = pgprot_noncached(vm_get_page_prot(vma->vm_flags)); 218c8afe684SRob Clark } else { 219c8afe684SRob Clark /* 220c8afe684SRob Clark * Shunt off cached objs to shmem file so they have their own 221c8afe684SRob Clark * address_space (so unmap_mapping_range does what we want, 222c8afe684SRob Clark * in particular in the case of mmap'd dmabufs) 223c8afe684SRob Clark */ 224c8afe684SRob Clark fput(vma->vm_file); 225c8afe684SRob Clark get_file(obj->filp); 226c8afe684SRob Clark vma->vm_pgoff = 0; 227c8afe684SRob Clark vma->vm_file = obj->filp; 228c8afe684SRob Clark 229c8afe684SRob Clark vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); 230c8afe684SRob Clark } 231c8afe684SRob Clark 232c8afe684SRob Clark return 0; 233c8afe684SRob Clark } 234c8afe684SRob Clark 235c8afe684SRob Clark int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma) 236c8afe684SRob Clark { 237c8afe684SRob Clark int ret; 238c8afe684SRob Clark 239c8afe684SRob Clark ret = drm_gem_mmap(filp, vma); 240c8afe684SRob Clark if (ret) { 241c8afe684SRob Clark DBG("mmap failed: %d", ret); 242c8afe684SRob Clark return ret; 243c8afe684SRob Clark } 244c8afe684SRob Clark 245c8afe684SRob Clark return msm_gem_mmap_obj(vma->vm_private_data, vma); 246c8afe684SRob Clark } 247c8afe684SRob Clark 248a5f74ec7SSouptick Joarder vm_fault_t msm_gem_fault(struct vm_fault *vmf) 249c8afe684SRob Clark { 25011bac800SDave Jiang struct vm_area_struct *vma = vmf->vma; 251c8afe684SRob Clark struct drm_gem_object *obj = vma->vm_private_data; 2520e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 253c8afe684SRob Clark struct page **pages; 254c8afe684SRob Clark unsigned long pfn; 255c8afe684SRob Clark pgoff_t pgoff; 256a5f74ec7SSouptick Joarder int err; 257a5f74ec7SSouptick Joarder vm_fault_t ret; 258c8afe684SRob Clark 2590e08270aSSushmita Susheelendra /* 2600e08270aSSushmita Susheelendra * vm_ops.open/drm_gem_mmap_obj and close get and put 2610e08270aSSushmita Susheelendra * a reference on obj. So, we dont need to hold one here. 262d78d383aSRob Clark */ 263a5f74ec7SSouptick Joarder err = mutex_lock_interruptible(&msm_obj->lock); 264a5f74ec7SSouptick Joarder if (err) { 265a5f74ec7SSouptick Joarder ret = VM_FAULT_NOPAGE; 266c8afe684SRob Clark goto out; 267a5f74ec7SSouptick Joarder } 268c8afe684SRob Clark 2690e08270aSSushmita Susheelendra if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 2700e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 2710e08270aSSushmita Susheelendra return VM_FAULT_SIGBUS; 2720e08270aSSushmita Susheelendra } 2730e08270aSSushmita Susheelendra 274c8afe684SRob Clark /* make sure we have pages attached now */ 275c8afe684SRob Clark pages = get_pages(obj); 276c8afe684SRob Clark if (IS_ERR(pages)) { 277a5f74ec7SSouptick Joarder ret = vmf_error(PTR_ERR(pages)); 278c8afe684SRob Clark goto out_unlock; 279c8afe684SRob Clark } 280c8afe684SRob Clark 281c8afe684SRob Clark /* We don't use vmf->pgoff since that has the fake offset: */ 2821a29d85eSJan Kara pgoff = (vmf->address - vma->vm_start) >> PAGE_SHIFT; 283c8afe684SRob Clark 284871d812aSRob Clark pfn = page_to_pfn(pages[pgoff]); 285c8afe684SRob Clark 2861a29d85eSJan Kara VERB("Inserting %p pfn %lx, pa %lx", (void *)vmf->address, 287c8afe684SRob Clark pfn, pfn << PAGE_SHIFT); 288c8afe684SRob Clark 289a5f74ec7SSouptick Joarder ret = vmf_insert_mixed(vma, vmf->address, __pfn_to_pfn_t(pfn, PFN_DEV)); 290c8afe684SRob Clark out_unlock: 2910e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 292c8afe684SRob Clark out: 293a5f74ec7SSouptick Joarder return ret; 294c8afe684SRob Clark } 295c8afe684SRob Clark 296c8afe684SRob Clark /** get mmap offset */ 297c8afe684SRob Clark static uint64_t mmap_offset(struct drm_gem_object *obj) 298c8afe684SRob Clark { 299c8afe684SRob Clark struct drm_device *dev = obj->dev; 3000e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 301c8afe684SRob Clark int ret; 302c8afe684SRob Clark 3030e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 304c8afe684SRob Clark 305c8afe684SRob Clark /* Make it mmapable */ 306c8afe684SRob Clark ret = drm_gem_create_mmap_offset(obj); 307c8afe684SRob Clark 308c8afe684SRob Clark if (ret) { 3096a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not allocate mmap offset\n"); 310c8afe684SRob Clark return 0; 311c8afe684SRob Clark } 312c8afe684SRob Clark 313c8afe684SRob Clark return drm_vma_node_offset_addr(&obj->vma_node); 314c8afe684SRob Clark } 315c8afe684SRob Clark 316c8afe684SRob Clark uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj) 317c8afe684SRob Clark { 318c8afe684SRob Clark uint64_t offset; 3190e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 3200e08270aSSushmita Susheelendra 3210e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 322c8afe684SRob Clark offset = mmap_offset(obj); 3230e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 324c8afe684SRob Clark return offset; 325c8afe684SRob Clark } 326c8afe684SRob Clark 3274b85f7f5SRob Clark static struct msm_gem_vma *add_vma(struct drm_gem_object *obj, 3284b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3294b85f7f5SRob Clark { 3304b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3314b85f7f5SRob Clark struct msm_gem_vma *vma; 3324b85f7f5SRob Clark 3330e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 3340e08270aSSushmita Susheelendra 3354b85f7f5SRob Clark vma = kzalloc(sizeof(*vma), GFP_KERNEL); 3364b85f7f5SRob Clark if (!vma) 3374b85f7f5SRob Clark return ERR_PTR(-ENOMEM); 3384b85f7f5SRob Clark 3394b85f7f5SRob Clark vma->aspace = aspace; 3404b85f7f5SRob Clark 3414b85f7f5SRob Clark list_add_tail(&vma->list, &msm_obj->vmas); 3424b85f7f5SRob Clark 3434b85f7f5SRob Clark return vma; 3444b85f7f5SRob Clark } 3454b85f7f5SRob Clark 3464b85f7f5SRob Clark static struct msm_gem_vma *lookup_vma(struct drm_gem_object *obj, 3474b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3484b85f7f5SRob Clark { 3494b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3504b85f7f5SRob Clark struct msm_gem_vma *vma; 3514b85f7f5SRob Clark 3520e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 3534b85f7f5SRob Clark 3544b85f7f5SRob Clark list_for_each_entry(vma, &msm_obj->vmas, list) { 3554b85f7f5SRob Clark if (vma->aspace == aspace) 3564b85f7f5SRob Clark return vma; 3574b85f7f5SRob Clark } 3584b85f7f5SRob Clark 3594b85f7f5SRob Clark return NULL; 3604b85f7f5SRob Clark } 3614b85f7f5SRob Clark 3624b85f7f5SRob Clark static void del_vma(struct msm_gem_vma *vma) 3634b85f7f5SRob Clark { 3644b85f7f5SRob Clark if (!vma) 3654b85f7f5SRob Clark return; 3664b85f7f5SRob Clark 3674b85f7f5SRob Clark list_del(&vma->list); 3684b85f7f5SRob Clark kfree(vma); 3694b85f7f5SRob Clark } 3704b85f7f5SRob Clark 3710e08270aSSushmita Susheelendra /* Called with msm_obj->lock locked */ 3724fe5f65eSRob Clark static void 3734fe5f65eSRob Clark put_iova(struct drm_gem_object *obj) 3744fe5f65eSRob Clark { 3754fe5f65eSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3764b85f7f5SRob Clark struct msm_gem_vma *vma, *tmp; 3774fe5f65eSRob Clark 3780e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 3794fe5f65eSRob Clark 3804b85f7f5SRob Clark list_for_each_entry_safe(vma, tmp, &msm_obj->vmas, list) { 381d67f1b6dSBrian Masney if (vma->aspace) { 3827ad0e8cfSJordan Crouse msm_gem_purge_vma(vma->aspace, vma); 3837ad0e8cfSJordan Crouse msm_gem_close_vma(vma->aspace, vma); 384d67f1b6dSBrian Masney } 3854b85f7f5SRob Clark del_vma(vma); 3864fe5f65eSRob Clark } 3874fe5f65eSRob Clark } 3884fe5f65eSRob Clark 389c0ee9794SJordan Crouse static int msm_gem_get_iova_locked(struct drm_gem_object *obj, 3908bdcd949SRob Clark struct msm_gem_address_space *aspace, uint64_t *iova) 391c8afe684SRob Clark { 392c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3934b85f7f5SRob Clark struct msm_gem_vma *vma; 394c8afe684SRob Clark int ret = 0; 395c8afe684SRob Clark 396c0ee9794SJordan Crouse WARN_ON(!mutex_is_locked(&msm_obj->lock)); 397cb1e3818SRob Clark 3984b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 399871d812aSRob Clark 4004b85f7f5SRob Clark if (!vma) { 4014b85f7f5SRob Clark vma = add_vma(obj, aspace); 402c0ee9794SJordan Crouse if (IS_ERR(vma)) 403c0ee9794SJordan Crouse return PTR_ERR(vma); 4044b85f7f5SRob Clark 405c0ee9794SJordan Crouse ret = msm_gem_init_vma(aspace, vma, obj->size >> PAGE_SHIFT); 406c0ee9794SJordan Crouse if (ret) { 407c0ee9794SJordan Crouse del_vma(vma); 408c0ee9794SJordan Crouse return ret; 409c8afe684SRob Clark } 4104b85f7f5SRob Clark } 4114b85f7f5SRob Clark 4124b85f7f5SRob Clark *iova = vma->iova; 4134b85f7f5SRob Clark return 0; 414c0ee9794SJordan Crouse } 4154b85f7f5SRob Clark 416c0ee9794SJordan Crouse static int msm_gem_pin_iova(struct drm_gem_object *obj, 417c0ee9794SJordan Crouse struct msm_gem_address_space *aspace) 418c0ee9794SJordan Crouse { 419c0ee9794SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 420c0ee9794SJordan Crouse struct msm_gem_vma *vma; 421c0ee9794SJordan Crouse struct page **pages; 422bbc2cd07SRob Clark int prot = IOMMU_READ; 423bbc2cd07SRob Clark 424bbc2cd07SRob Clark if (!(msm_obj->flags & MSM_BO_GPU_READONLY)) 425bbc2cd07SRob Clark prot |= IOMMU_WRITE; 426c0ee9794SJordan Crouse 427c0ee9794SJordan Crouse WARN_ON(!mutex_is_locked(&msm_obj->lock)); 428c0ee9794SJordan Crouse 429c0ee9794SJordan Crouse if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) 430c0ee9794SJordan Crouse return -EBUSY; 431c0ee9794SJordan Crouse 432c0ee9794SJordan Crouse vma = lookup_vma(obj, aspace); 433c0ee9794SJordan Crouse if (WARN_ON(!vma)) 434c0ee9794SJordan Crouse return -EINVAL; 435c0ee9794SJordan Crouse 436c0ee9794SJordan Crouse pages = get_pages(obj); 437c0ee9794SJordan Crouse if (IS_ERR(pages)) 438c0ee9794SJordan Crouse return PTR_ERR(pages); 439c0ee9794SJordan Crouse 440bbc2cd07SRob Clark return msm_gem_map_vma(aspace, vma, prot, 441bbc2cd07SRob Clark msm_obj->sgt, obj->size >> PAGE_SHIFT); 442c0ee9794SJordan Crouse } 443c0ee9794SJordan Crouse 4449fe041f6SJordan Crouse /* get iova and pin it. Should have a matching put */ 4459fe041f6SJordan Crouse int msm_gem_get_and_pin_iova(struct drm_gem_object *obj, 446c0ee9794SJordan Crouse struct msm_gem_address_space *aspace, uint64_t *iova) 447c0ee9794SJordan Crouse { 448c0ee9794SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 449c0ee9794SJordan Crouse u64 local; 450c0ee9794SJordan Crouse int ret; 451c0ee9794SJordan Crouse 452c0ee9794SJordan Crouse mutex_lock(&msm_obj->lock); 453c0ee9794SJordan Crouse 454c0ee9794SJordan Crouse ret = msm_gem_get_iova_locked(obj, aspace, &local); 455c0ee9794SJordan Crouse 456c0ee9794SJordan Crouse if (!ret) 457c0ee9794SJordan Crouse ret = msm_gem_pin_iova(obj, aspace); 458c0ee9794SJordan Crouse 459c0ee9794SJordan Crouse if (!ret) 460c0ee9794SJordan Crouse *iova = local; 461c0ee9794SJordan Crouse 4620e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 463c8afe684SRob Clark return ret; 464c8afe684SRob Clark } 465c8afe684SRob Clark 4667ad0e8cfSJordan Crouse /* 4677ad0e8cfSJordan Crouse * Get an iova but don't pin it. Doesn't need a put because iovas are currently 4687ad0e8cfSJordan Crouse * valid for the life of the object 4697ad0e8cfSJordan Crouse */ 4709fe041f6SJordan Crouse int msm_gem_get_iova(struct drm_gem_object *obj, 4719fe041f6SJordan Crouse struct msm_gem_address_space *aspace, uint64_t *iova) 4729fe041f6SJordan Crouse { 4739fe041f6SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 4749fe041f6SJordan Crouse int ret; 4759fe041f6SJordan Crouse 4769fe041f6SJordan Crouse mutex_lock(&msm_obj->lock); 4779fe041f6SJordan Crouse ret = msm_gem_get_iova_locked(obj, aspace, iova); 4789fe041f6SJordan Crouse mutex_unlock(&msm_obj->lock); 4799fe041f6SJordan Crouse 4809fe041f6SJordan Crouse return ret; 4819fe041f6SJordan Crouse } 4829fe041f6SJordan Crouse 4832638d90aSRob Clark /* get iova without taking a reference, used in places where you have 4849fe041f6SJordan Crouse * already done a 'msm_gem_get_and_pin_iova' or 'msm_gem_get_iova' 4852638d90aSRob Clark */ 4868bdcd949SRob Clark uint64_t msm_gem_iova(struct drm_gem_object *obj, 4878bdcd949SRob Clark struct msm_gem_address_space *aspace) 4882638d90aSRob Clark { 4890e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 4904b85f7f5SRob Clark struct msm_gem_vma *vma; 4914b85f7f5SRob Clark 4920e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 4934b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 4940e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 4954b85f7f5SRob Clark WARN_ON(!vma); 4964b85f7f5SRob Clark 4974b85f7f5SRob Clark return vma ? vma->iova : 0; 4982638d90aSRob Clark } 4992638d90aSRob Clark 5007ad0e8cfSJordan Crouse /* 5017ad0e8cfSJordan Crouse * Unpin a iova by updating the reference counts. The memory isn't actually 5027ad0e8cfSJordan Crouse * purged until something else (shrinker, mm_notifier, destroy, etc) decides 5037ad0e8cfSJordan Crouse * to get rid of it 5047ad0e8cfSJordan Crouse */ 5057ad0e8cfSJordan Crouse void msm_gem_unpin_iova(struct drm_gem_object *obj, 5068bdcd949SRob Clark struct msm_gem_address_space *aspace) 507c8afe684SRob Clark { 5087ad0e8cfSJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 5097ad0e8cfSJordan Crouse struct msm_gem_vma *vma; 5107ad0e8cfSJordan Crouse 5117ad0e8cfSJordan Crouse mutex_lock(&msm_obj->lock); 5127ad0e8cfSJordan Crouse vma = lookup_vma(obj, aspace); 5137ad0e8cfSJordan Crouse 5147ad0e8cfSJordan Crouse if (!WARN_ON(!vma)) 5157ad0e8cfSJordan Crouse msm_gem_unmap_vma(aspace, vma); 5167ad0e8cfSJordan Crouse 5177ad0e8cfSJordan Crouse mutex_unlock(&msm_obj->lock); 518c8afe684SRob Clark } 519c8afe684SRob Clark 520c8afe684SRob Clark int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 521c8afe684SRob Clark struct drm_mode_create_dumb *args) 522c8afe684SRob Clark { 523c8afe684SRob Clark args->pitch = align_pitch(args->width, args->bpp); 524c8afe684SRob Clark args->size = PAGE_ALIGN(args->pitch * args->height); 525c8afe684SRob Clark return msm_gem_new_handle(dev, file, args->size, 5260815d774SJordan Crouse MSM_BO_SCANOUT | MSM_BO_WC, &args->handle, "dumb"); 527c8afe684SRob Clark } 528c8afe684SRob Clark 529c8afe684SRob Clark int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 530c8afe684SRob Clark uint32_t handle, uint64_t *offset) 531c8afe684SRob Clark { 532c8afe684SRob Clark struct drm_gem_object *obj; 533c8afe684SRob Clark int ret = 0; 534c8afe684SRob Clark 535c8afe684SRob Clark /* GEM does all our handle to object mapping */ 536a8ad0bd8SChris Wilson obj = drm_gem_object_lookup(file, handle); 537c8afe684SRob Clark if (obj == NULL) { 538c8afe684SRob Clark ret = -ENOENT; 539c8afe684SRob Clark goto fail; 540c8afe684SRob Clark } 541c8afe684SRob Clark 542c8afe684SRob Clark *offset = msm_gem_mmap_offset(obj); 543c8afe684SRob Clark 544dc9a9b32SSteve Kowalik drm_gem_object_put_unlocked(obj); 545c8afe684SRob Clark 546c8afe684SRob Clark fail: 547c8afe684SRob Clark return ret; 548c8afe684SRob Clark } 549c8afe684SRob Clark 550fad33f4bSRob Clark static void *get_vaddr(struct drm_gem_object *obj, unsigned madv) 551c8afe684SRob Clark { 5520e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 5530e08270aSSushmita Susheelendra int ret = 0; 5540e08270aSSushmita Susheelendra 5550e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 5560e08270aSSushmita Susheelendra 557fad33f4bSRob Clark if (WARN_ON(msm_obj->madv > madv)) { 5586a41da17SMamta Shukla DRM_DEV_ERROR(obj->dev->dev, "Invalid madv state: %u vs %u\n", 559fad33f4bSRob Clark msm_obj->madv, madv); 5600e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5610e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 562c8afe684SRob Clark } 563c8afe684SRob Clark 5640e08270aSSushmita Susheelendra /* increment vmap_count *before* vmap() call, so shrinker can 5650e08270aSSushmita Susheelendra * check vmap_count (is_vunmapable()) outside of msm_obj->lock. 5660e08270aSSushmita Susheelendra * This guarantees that we won't try to msm_gem_vunmap() this 5670e08270aSSushmita Susheelendra * same object from within the vmap() call (while we already 5680e08270aSSushmita Susheelendra * hold msm_obj->lock) 5690e08270aSSushmita Susheelendra */ 5700e08270aSSushmita Susheelendra msm_obj->vmap_count++; 5710e08270aSSushmita Susheelendra 5720e08270aSSushmita Susheelendra if (!msm_obj->vaddr) { 5730e08270aSSushmita Susheelendra struct page **pages = get_pages(obj); 5740e08270aSSushmita Susheelendra if (IS_ERR(pages)) { 5750e08270aSSushmita Susheelendra ret = PTR_ERR(pages); 5760e08270aSSushmita Susheelendra goto fail; 5770e08270aSSushmita Susheelendra } 5780e08270aSSushmita Susheelendra msm_obj->vaddr = vmap(pages, obj->size >> PAGE_SHIFT, 5790e08270aSSushmita Susheelendra VM_MAP, pgprot_writecombine(PAGE_KERNEL)); 5800e08270aSSushmita Susheelendra if (msm_obj->vaddr == NULL) { 5810e08270aSSushmita Susheelendra ret = -ENOMEM; 5820e08270aSSushmita Susheelendra goto fail; 5830e08270aSSushmita Susheelendra } 5840e08270aSSushmita Susheelendra } 5850e08270aSSushmita Susheelendra 5860e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5870e08270aSSushmita Susheelendra return msm_obj->vaddr; 5880e08270aSSushmita Susheelendra 5890e08270aSSushmita Susheelendra fail: 590e1e9db2cSRob Clark msm_obj->vmap_count--; 5910e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5920e08270aSSushmita Susheelendra return ERR_PTR(ret); 59318f23049SRob Clark } 59418f23049SRob Clark 595fad33f4bSRob Clark void *msm_gem_get_vaddr(struct drm_gem_object *obj) 596fad33f4bSRob Clark { 597fad33f4bSRob Clark return get_vaddr(obj, MSM_MADV_WILLNEED); 598fad33f4bSRob Clark } 599fad33f4bSRob Clark 600fad33f4bSRob Clark /* 601fad33f4bSRob Clark * Don't use this! It is for the very special case of dumping 602fad33f4bSRob Clark * submits from GPU hangs or faults, were the bo may already 603fad33f4bSRob Clark * be MSM_MADV_DONTNEED, but we know the buffer is still on the 604fad33f4bSRob Clark * active list. 605fad33f4bSRob Clark */ 606fad33f4bSRob Clark void *msm_gem_get_vaddr_active(struct drm_gem_object *obj) 607fad33f4bSRob Clark { 608fad33f4bSRob Clark return get_vaddr(obj, __MSM_MADV_PURGED); 609fad33f4bSRob Clark } 610fad33f4bSRob Clark 61118f23049SRob Clark void msm_gem_put_vaddr(struct drm_gem_object *obj) 61218f23049SRob Clark { 6130e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 6140e08270aSSushmita Susheelendra 6150e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 6160e08270aSSushmita Susheelendra WARN_ON(msm_obj->vmap_count < 1); 6170e08270aSSushmita Susheelendra msm_obj->vmap_count--; 6180e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 61918f23049SRob Clark } 62018f23049SRob Clark 6214cd33c48SRob Clark /* Update madvise status, returns true if not purged, else 6224cd33c48SRob Clark * false or -errno. 6234cd33c48SRob Clark */ 6244cd33c48SRob Clark int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv) 6254cd33c48SRob Clark { 6264cd33c48SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 6274cd33c48SRob Clark 6280e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 6290e08270aSSushmita Susheelendra 6304cd33c48SRob Clark WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex)); 6314cd33c48SRob Clark 6324cd33c48SRob Clark if (msm_obj->madv != __MSM_MADV_PURGED) 6334cd33c48SRob Clark msm_obj->madv = madv; 6344cd33c48SRob Clark 6350e08270aSSushmita Susheelendra madv = msm_obj->madv; 6360e08270aSSushmita Susheelendra 6370e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 6380e08270aSSushmita Susheelendra 6390e08270aSSushmita Susheelendra return (madv != __MSM_MADV_PURGED); 6404cd33c48SRob Clark } 6414cd33c48SRob Clark 6420e08270aSSushmita Susheelendra void msm_gem_purge(struct drm_gem_object *obj, enum msm_gem_lock subclass) 64368209390SRob Clark { 64468209390SRob Clark struct drm_device *dev = obj->dev; 64568209390SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 64668209390SRob Clark 64768209390SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 64868209390SRob Clark WARN_ON(!is_purgeable(msm_obj)); 64968209390SRob Clark WARN_ON(obj->import_attach); 65068209390SRob Clark 6510e08270aSSushmita Susheelendra mutex_lock_nested(&msm_obj->lock, subclass); 6520e08270aSSushmita Susheelendra 65368209390SRob Clark put_iova(obj); 65468209390SRob Clark 6550e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 65668209390SRob Clark 65768209390SRob Clark put_pages(obj); 65868209390SRob Clark 65968209390SRob Clark msm_obj->madv = __MSM_MADV_PURGED; 66068209390SRob Clark 66168209390SRob Clark drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); 66268209390SRob Clark drm_gem_free_mmap_offset(obj); 66368209390SRob Clark 66468209390SRob Clark /* Our goal here is to return as much of the memory as 66568209390SRob Clark * is possible back to the system as we are called from OOM. 66668209390SRob Clark * To do this we must instruct the shmfs to drop all of its 66768209390SRob Clark * backing pages, *now*. 66868209390SRob Clark */ 66968209390SRob Clark shmem_truncate_range(file_inode(obj->filp), 0, (loff_t)-1); 67068209390SRob Clark 67168209390SRob Clark invalidate_mapping_pages(file_inode(obj->filp)->i_mapping, 67268209390SRob Clark 0, (loff_t)-1); 6730e08270aSSushmita Susheelendra 6740e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 67568209390SRob Clark } 67668209390SRob Clark 6770e08270aSSushmita Susheelendra static void msm_gem_vunmap_locked(struct drm_gem_object *obj) 678e1e9db2cSRob Clark { 679e1e9db2cSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 680e1e9db2cSRob Clark 6810e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 6820e08270aSSushmita Susheelendra 683e1e9db2cSRob Clark if (!msm_obj->vaddr || WARN_ON(!is_vunmapable(msm_obj))) 684e1e9db2cSRob Clark return; 685e1e9db2cSRob Clark 686e1e9db2cSRob Clark vunmap(msm_obj->vaddr); 687e1e9db2cSRob Clark msm_obj->vaddr = NULL; 688e1e9db2cSRob Clark } 689e1e9db2cSRob Clark 6900e08270aSSushmita Susheelendra void msm_gem_vunmap(struct drm_gem_object *obj, enum msm_gem_lock subclass) 6910e08270aSSushmita Susheelendra { 6920e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 6930e08270aSSushmita Susheelendra 6940e08270aSSushmita Susheelendra mutex_lock_nested(&msm_obj->lock, subclass); 6950e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 6960e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 6970e08270aSSushmita Susheelendra } 6980e08270aSSushmita Susheelendra 699b6295f9aSRob Clark /* must be called before _move_to_active().. */ 700b6295f9aSRob Clark int msm_gem_sync_object(struct drm_gem_object *obj, 701b6295f9aSRob Clark struct msm_fence_context *fctx, bool exclusive) 702b6295f9aSRob Clark { 703b6295f9aSRob Clark struct reservation_object_list *fobj; 704f54d1867SChris Wilson struct dma_fence *fence; 705b6295f9aSRob Clark int i, ret; 706b6295f9aSRob Clark 707dd55cf69SRob Herring fobj = reservation_object_get_list(obj->resv); 708b6295f9aSRob Clark if (!fobj || (fobj->shared_count == 0)) { 709dd55cf69SRob Herring fence = reservation_object_get_excl(obj->resv); 710b6295f9aSRob Clark /* don't need to wait on our own fences, since ring is fifo */ 711b6295f9aSRob Clark if (fence && (fence->context != fctx->context)) { 712f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 713b6295f9aSRob Clark if (ret) 714b6295f9aSRob Clark return ret; 715b6295f9aSRob Clark } 716b6295f9aSRob Clark } 717b6295f9aSRob Clark 718b6295f9aSRob Clark if (!exclusive || !fobj) 719b6295f9aSRob Clark return 0; 720b6295f9aSRob Clark 721b6295f9aSRob Clark for (i = 0; i < fobj->shared_count; i++) { 722b6295f9aSRob Clark fence = rcu_dereference_protected(fobj->shared[i], 723dd55cf69SRob Herring reservation_object_held(obj->resv)); 724b6295f9aSRob Clark if (fence->context != fctx->context) { 725f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 726b6295f9aSRob Clark if (ret) 727b6295f9aSRob Clark return ret; 728b6295f9aSRob Clark } 729b6295f9aSRob Clark } 730b6295f9aSRob Clark 731b6295f9aSRob Clark return 0; 732b6295f9aSRob Clark } 733b6295f9aSRob Clark 7347198e6b0SRob Clark void msm_gem_move_to_active(struct drm_gem_object *obj, 735f54d1867SChris Wilson struct msm_gpu *gpu, bool exclusive, struct dma_fence *fence) 7367198e6b0SRob Clark { 7377198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 7384cd33c48SRob Clark WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED); 7397198e6b0SRob Clark msm_obj->gpu = gpu; 740b6295f9aSRob Clark if (exclusive) 741dd55cf69SRob Herring reservation_object_add_excl_fence(obj->resv, fence); 742bf6811f3SRob Clark else 743dd55cf69SRob Herring reservation_object_add_shared_fence(obj->resv, fence); 7447198e6b0SRob Clark list_del_init(&msm_obj->mm_list); 7457198e6b0SRob Clark list_add_tail(&msm_obj->mm_list, &gpu->active_list); 7467198e6b0SRob Clark } 7477198e6b0SRob Clark 7487198e6b0SRob Clark void msm_gem_move_to_inactive(struct drm_gem_object *obj) 7497198e6b0SRob Clark { 7507198e6b0SRob Clark struct drm_device *dev = obj->dev; 7517198e6b0SRob Clark struct msm_drm_private *priv = dev->dev_private; 7527198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 7537198e6b0SRob Clark 7547198e6b0SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 7557198e6b0SRob Clark 7567198e6b0SRob Clark msm_obj->gpu = NULL; 7577198e6b0SRob Clark list_del_init(&msm_obj->mm_list); 7587198e6b0SRob Clark list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 7597198e6b0SRob Clark } 7607198e6b0SRob Clark 761ba00c3f2SRob Clark int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout) 762ba00c3f2SRob Clark { 763b6295f9aSRob Clark bool write = !!(op & MSM_PREP_WRITE); 764f755e227SChris Wilson unsigned long remain = 765f755e227SChris Wilson op & MSM_PREP_NOSYNC ? 0 : timeout_to_jiffies(timeout); 766f755e227SChris Wilson long ret; 767b6295f9aSRob Clark 768dd55cf69SRob Herring ret = reservation_object_wait_timeout_rcu(obj->resv, write, 769f755e227SChris Wilson true, remain); 770f755e227SChris Wilson if (ret == 0) 771f755e227SChris Wilson return remain == 0 ? -EBUSY : -ETIMEDOUT; 772f755e227SChris Wilson else if (ret < 0) 773f755e227SChris Wilson return ret; 774ba00c3f2SRob Clark 7757198e6b0SRob Clark /* TODO cache maintenance */ 7767198e6b0SRob Clark 777b6295f9aSRob Clark return 0; 7787198e6b0SRob Clark } 7797198e6b0SRob Clark 7807198e6b0SRob Clark int msm_gem_cpu_fini(struct drm_gem_object *obj) 7817198e6b0SRob Clark { 7827198e6b0SRob Clark /* TODO cache maintenance */ 783c8afe684SRob Clark return 0; 784c8afe684SRob Clark } 785c8afe684SRob Clark 786c8afe684SRob Clark #ifdef CONFIG_DEBUG_FS 787f54d1867SChris Wilson static void describe_fence(struct dma_fence *fence, const char *type, 788b6295f9aSRob Clark struct seq_file *m) 789b6295f9aSRob Clark { 790f54d1867SChris Wilson if (!dma_fence_is_signaled(fence)) 791a3115621SDave Airlie seq_printf(m, "\t%9s: %s %s seq %llu\n", type, 792b6295f9aSRob Clark fence->ops->get_driver_name(fence), 793b6295f9aSRob Clark fence->ops->get_timeline_name(fence), 794b6295f9aSRob Clark fence->seqno); 795b6295f9aSRob Clark } 796b6295f9aSRob Clark 797c8afe684SRob Clark void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m) 798c8afe684SRob Clark { 799c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 800dd55cf69SRob Herring struct reservation_object *robj = obj->resv; 801b6295f9aSRob Clark struct reservation_object_list *fobj; 802f54d1867SChris Wilson struct dma_fence *fence; 8034b85f7f5SRob Clark struct msm_gem_vma *vma; 804c8afe684SRob Clark uint64_t off = drm_vma_node_start(&obj->vma_node); 8054cd33c48SRob Clark const char *madv; 806c8afe684SRob Clark 8070e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 808b6295f9aSRob Clark 8094cd33c48SRob Clark switch (msm_obj->madv) { 8104cd33c48SRob Clark case __MSM_MADV_PURGED: 8114cd33c48SRob Clark madv = " purged"; 8124cd33c48SRob Clark break; 8134cd33c48SRob Clark case MSM_MADV_DONTNEED: 8144cd33c48SRob Clark madv = " purgeable"; 8154cd33c48SRob Clark break; 8164cd33c48SRob Clark case MSM_MADV_WILLNEED: 8174cd33c48SRob Clark default: 8184cd33c48SRob Clark madv = ""; 8194cd33c48SRob Clark break; 8204cd33c48SRob Clark } 8214cd33c48SRob Clark 822575f0485SJordan Crouse seq_printf(m, "%08x: %c %2d (%2d) %08llx %p", 8237198e6b0SRob Clark msm_obj->flags, is_active(msm_obj) ? 'A' : 'I', 8242c935bc5SPeter Zijlstra obj->name, kref_read(&obj->refcount), 825667ce33eSRob Clark off, msm_obj->vaddr); 826667ce33eSRob Clark 8270815d774SJordan Crouse seq_printf(m, " %08zu %9s %-32s\n", obj->size, madv, msm_obj->name); 828667ce33eSRob Clark 829575f0485SJordan Crouse if (!list_empty(&msm_obj->vmas)) { 830575f0485SJordan Crouse 831575f0485SJordan Crouse seq_puts(m, " vmas:"); 832575f0485SJordan Crouse 833575f0485SJordan Crouse list_for_each_entry(vma, &msm_obj->vmas, list) 83490f94660SBrian Masney seq_printf(m, " [%s: %08llx,%s,inuse=%d]", 83590f94660SBrian Masney vma->aspace != NULL ? vma->aspace->name : NULL, 8367ad0e8cfSJordan Crouse vma->iova, vma->mapped ? "mapped" : "unmapped", 8377ad0e8cfSJordan Crouse vma->inuse); 838575f0485SJordan Crouse 839575f0485SJordan Crouse seq_puts(m, "\n"); 840575f0485SJordan Crouse } 841b6295f9aSRob Clark 842b6295f9aSRob Clark rcu_read_lock(); 843b6295f9aSRob Clark fobj = rcu_dereference(robj->fence); 844b6295f9aSRob Clark if (fobj) { 845b6295f9aSRob Clark unsigned int i, shared_count = fobj->shared_count; 846b6295f9aSRob Clark 847b6295f9aSRob Clark for (i = 0; i < shared_count; i++) { 848b6295f9aSRob Clark fence = rcu_dereference(fobj->shared[i]); 849b6295f9aSRob Clark describe_fence(fence, "Shared", m); 850b6295f9aSRob Clark } 851b6295f9aSRob Clark } 852b6295f9aSRob Clark 853b6295f9aSRob Clark fence = rcu_dereference(robj->fence_excl); 854b6295f9aSRob Clark if (fence) 855b6295f9aSRob Clark describe_fence(fence, "Exclusive", m); 856b6295f9aSRob Clark rcu_read_unlock(); 8570e08270aSSushmita Susheelendra 8580e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 859c8afe684SRob Clark } 860c8afe684SRob Clark 861c8afe684SRob Clark void msm_gem_describe_objects(struct list_head *list, struct seq_file *m) 862c8afe684SRob Clark { 863c8afe684SRob Clark struct msm_gem_object *msm_obj; 864c8afe684SRob Clark int count = 0; 865c8afe684SRob Clark size_t size = 0; 866c8afe684SRob Clark 8670815d774SJordan Crouse seq_puts(m, " flags id ref offset kaddr size madv name\n"); 868c8afe684SRob Clark list_for_each_entry(msm_obj, list, mm_list) { 869c8afe684SRob Clark struct drm_gem_object *obj = &msm_obj->base; 870575f0485SJordan Crouse seq_puts(m, " "); 871c8afe684SRob Clark msm_gem_describe(obj, m); 872c8afe684SRob Clark count++; 873c8afe684SRob Clark size += obj->size; 874c8afe684SRob Clark } 875c8afe684SRob Clark 876c8afe684SRob Clark seq_printf(m, "Total %d objects, %zu bytes\n", count, size); 877c8afe684SRob Clark } 878c8afe684SRob Clark #endif 879c8afe684SRob Clark 880d71b6bd8SRob Clark /* don't call directly! Use drm_gem_object_put() and friends */ 881c8afe684SRob Clark void msm_gem_free_object(struct drm_gem_object *obj) 882c8afe684SRob Clark { 883c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 88448e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 88548e7f183SKristian H. Kristensen struct msm_drm_private *priv = dev->dev_private; 88648e7f183SKristian H. Kristensen 88748e7f183SKristian H. Kristensen if (llist_add(&msm_obj->freed, &priv->free_list)) 88848e7f183SKristian H. Kristensen queue_work(priv->wq, &priv->free_work); 88948e7f183SKristian H. Kristensen } 89048e7f183SKristian H. Kristensen 89148e7f183SKristian H. Kristensen static void free_object(struct msm_gem_object *msm_obj) 89248e7f183SKristian H. Kristensen { 89348e7f183SKristian H. Kristensen struct drm_gem_object *obj = &msm_obj->base; 89448e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 895c8afe684SRob Clark 896c8afe684SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 897c8afe684SRob Clark 8987198e6b0SRob Clark /* object should not be on active list: */ 8997198e6b0SRob Clark WARN_ON(is_active(msm_obj)); 9007198e6b0SRob Clark 901c8afe684SRob Clark list_del(&msm_obj->mm_list); 902c8afe684SRob Clark 9030e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 9040e08270aSSushmita Susheelendra 9054fe5f65eSRob Clark put_iova(obj); 906c8afe684SRob Clark 90705b84911SRob Clark if (obj->import_attach) { 90805b84911SRob Clark if (msm_obj->vaddr) 90905b84911SRob Clark dma_buf_vunmap(obj->import_attach->dmabuf, msm_obj->vaddr); 91005b84911SRob Clark 91105b84911SRob Clark /* Don't drop the pages for imported dmabuf, as they are not 91205b84911SRob Clark * ours, just free the array we allocated: 91305b84911SRob Clark */ 91405b84911SRob Clark if (msm_obj->pages) 9152098105eSMichal Hocko kvfree(msm_obj->pages); 91605b84911SRob Clark 917f28730c8Sjilai wang drm_prime_gem_destroy(obj, msm_obj->sgt); 91805b84911SRob Clark } else { 9190e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 920c8afe684SRob Clark put_pages(obj); 92105b84911SRob Clark } 922c8afe684SRob Clark 923c8afe684SRob Clark drm_gem_object_release(obj); 924c8afe684SRob Clark 9250e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 926c8afe684SRob Clark kfree(msm_obj); 927c8afe684SRob Clark } 928c8afe684SRob Clark 92948e7f183SKristian H. Kristensen void msm_gem_free_work(struct work_struct *work) 93048e7f183SKristian H. Kristensen { 93148e7f183SKristian H. Kristensen struct msm_drm_private *priv = 93248e7f183SKristian H. Kristensen container_of(work, struct msm_drm_private, free_work); 93348e7f183SKristian H. Kristensen struct drm_device *dev = priv->dev; 93448e7f183SKristian H. Kristensen struct llist_node *freed; 93548e7f183SKristian H. Kristensen struct msm_gem_object *msm_obj, *next; 93648e7f183SKristian H. Kristensen 93748e7f183SKristian H. Kristensen while ((freed = llist_del_all(&priv->free_list))) { 93848e7f183SKristian H. Kristensen 93948e7f183SKristian H. Kristensen mutex_lock(&dev->struct_mutex); 94048e7f183SKristian H. Kristensen 94148e7f183SKristian H. Kristensen llist_for_each_entry_safe(msm_obj, next, 94248e7f183SKristian H. Kristensen freed, freed) 94348e7f183SKristian H. Kristensen free_object(msm_obj); 94448e7f183SKristian H. Kristensen 94548e7f183SKristian H. Kristensen mutex_unlock(&dev->struct_mutex); 94648e7f183SKristian H. Kristensen 94748e7f183SKristian H. Kristensen if (need_resched()) 94848e7f183SKristian H. Kristensen break; 94948e7f183SKristian H. Kristensen } 95048e7f183SKristian H. Kristensen } 95148e7f183SKristian H. Kristensen 952c8afe684SRob Clark /* convenience method to construct a GEM buffer object, and userspace handle */ 953c8afe684SRob Clark int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file, 9540815d774SJordan Crouse uint32_t size, uint32_t flags, uint32_t *handle, 9550815d774SJordan Crouse char *name) 956c8afe684SRob Clark { 957c8afe684SRob Clark struct drm_gem_object *obj; 958c8afe684SRob Clark int ret; 959c8afe684SRob Clark 960c8afe684SRob Clark obj = msm_gem_new(dev, size, flags); 961c8afe684SRob Clark 962c8afe684SRob Clark if (IS_ERR(obj)) 963c8afe684SRob Clark return PTR_ERR(obj); 964c8afe684SRob Clark 9650815d774SJordan Crouse if (name) 9660815d774SJordan Crouse msm_gem_object_set_name(obj, "%s", name); 9670815d774SJordan Crouse 968c8afe684SRob Clark ret = drm_gem_handle_create(file, obj, handle); 969c8afe684SRob Clark 970c8afe684SRob Clark /* drop reference from allocate - handle holds it now */ 971dc9a9b32SSteve Kowalik drm_gem_object_put_unlocked(obj); 972c8afe684SRob Clark 973c8afe684SRob Clark return ret; 974c8afe684SRob Clark } 975c8afe684SRob Clark 97605b84911SRob Clark static int msm_gem_new_impl(struct drm_device *dev, 97705b84911SRob Clark uint32_t size, uint32_t flags, 97879f0e202SRob Clark struct reservation_object *resv, 9790e08270aSSushmita Susheelendra struct drm_gem_object **obj, 9800e08270aSSushmita Susheelendra bool struct_mutex_locked) 981c8afe684SRob Clark { 982c8afe684SRob Clark struct msm_drm_private *priv = dev->dev_private; 983c8afe684SRob Clark struct msm_gem_object *msm_obj; 984c8afe684SRob Clark 985c8afe684SRob Clark switch (flags & MSM_BO_CACHE_MASK) { 986c8afe684SRob Clark case MSM_BO_UNCACHED: 987c8afe684SRob Clark case MSM_BO_CACHED: 988c8afe684SRob Clark case MSM_BO_WC: 989c8afe684SRob Clark break; 990c8afe684SRob Clark default: 9916a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "invalid cache flag: %x\n", 992c8afe684SRob Clark (flags & MSM_BO_CACHE_MASK)); 99305b84911SRob Clark return -EINVAL; 994c8afe684SRob Clark } 995c8afe684SRob Clark 996667ce33eSRob Clark msm_obj = kzalloc(sizeof(*msm_obj), GFP_KERNEL); 99705b84911SRob Clark if (!msm_obj) 99805b84911SRob Clark return -ENOMEM; 999c8afe684SRob Clark 10000e08270aSSushmita Susheelendra mutex_init(&msm_obj->lock); 10010e08270aSSushmita Susheelendra 1002c8afe684SRob Clark msm_obj->flags = flags; 10034cd33c48SRob Clark msm_obj->madv = MSM_MADV_WILLNEED; 1004c8afe684SRob Clark 1005dd55cf69SRob Herring if (resv) 1006dd55cf69SRob Herring msm_obj->base.resv = resv; 1007c8afe684SRob Clark 10087198e6b0SRob Clark INIT_LIST_HEAD(&msm_obj->submit_entry); 10094b85f7f5SRob Clark INIT_LIST_HEAD(&msm_obj->vmas); 10104b85f7f5SRob Clark 10110e08270aSSushmita Susheelendra if (struct_mutex_locked) { 10120e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 1013c8afe684SRob Clark list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 10140e08270aSSushmita Susheelendra } else { 10150e08270aSSushmita Susheelendra mutex_lock(&dev->struct_mutex); 10160e08270aSSushmita Susheelendra list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 10170e08270aSSushmita Susheelendra mutex_unlock(&dev->struct_mutex); 10180e08270aSSushmita Susheelendra } 1019c8afe684SRob Clark 102005b84911SRob Clark *obj = &msm_obj->base; 102105b84911SRob Clark 102205b84911SRob Clark return 0; 102305b84911SRob Clark } 102405b84911SRob Clark 10250e08270aSSushmita Susheelendra static struct drm_gem_object *_msm_gem_new(struct drm_device *dev, 10260e08270aSSushmita Susheelendra uint32_t size, uint32_t flags, bool struct_mutex_locked) 102705b84911SRob Clark { 1028f4839bd5SRob Clark struct msm_drm_private *priv = dev->dev_private; 1029871d812aSRob Clark struct drm_gem_object *obj = NULL; 1030f4839bd5SRob Clark bool use_vram = false; 103105b84911SRob Clark int ret; 103205b84911SRob Clark 103305b84911SRob Clark size = PAGE_ALIGN(size); 103405b84911SRob Clark 1035c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) 1036f4839bd5SRob Clark use_vram = true; 103786f46f25SJonathan Marek else if ((flags & (MSM_BO_STOLEN | MSM_BO_SCANOUT)) && priv->vram.size) 1038f4839bd5SRob Clark use_vram = true; 1039f4839bd5SRob Clark 1040f4839bd5SRob Clark if (WARN_ON(use_vram && !priv->vram.size)) 1041f4839bd5SRob Clark return ERR_PTR(-EINVAL); 1042f4839bd5SRob Clark 10431a5dff5dSJordan Crouse /* Disallow zero sized objects as they make the underlying 10441a5dff5dSJordan Crouse * infrastructure grumpy 10451a5dff5dSJordan Crouse */ 10461a5dff5dSJordan Crouse if (size == 0) 10471a5dff5dSJordan Crouse return ERR_PTR(-EINVAL); 10481a5dff5dSJordan Crouse 10490e08270aSSushmita Susheelendra ret = msm_gem_new_impl(dev, size, flags, NULL, &obj, struct_mutex_locked); 105005b84911SRob Clark if (ret) 105105b84911SRob Clark goto fail; 105205b84911SRob Clark 1053f4839bd5SRob Clark if (use_vram) { 10544b85f7f5SRob Clark struct msm_gem_vma *vma; 1055f4839bd5SRob Clark struct page **pages; 1056b3949a9aSHans Verkuil struct msm_gem_object *msm_obj = to_msm_bo(obj); 1057b3949a9aSHans Verkuil 1058b3949a9aSHans Verkuil mutex_lock(&msm_obj->lock); 1059f4839bd5SRob Clark 10604b85f7f5SRob Clark vma = add_vma(obj, NULL); 1061b3949a9aSHans Verkuil mutex_unlock(&msm_obj->lock); 10624b85f7f5SRob Clark if (IS_ERR(vma)) { 10634b85f7f5SRob Clark ret = PTR_ERR(vma); 10644b85f7f5SRob Clark goto fail; 10654b85f7f5SRob Clark } 10664b85f7f5SRob Clark 10674b85f7f5SRob Clark to_msm_bo(obj)->vram_node = &vma->node; 10684b85f7f5SRob Clark 1069f4839bd5SRob Clark drm_gem_private_object_init(dev, obj, size); 1070f4839bd5SRob Clark 1071f4839bd5SRob Clark pages = get_pages(obj); 1072f4839bd5SRob Clark if (IS_ERR(pages)) { 1073f4839bd5SRob Clark ret = PTR_ERR(pages); 1074f4839bd5SRob Clark goto fail; 1075f4839bd5SRob Clark } 10764b85f7f5SRob Clark 10774b85f7f5SRob Clark vma->iova = physaddr(obj); 1078f4839bd5SRob Clark } else { 107905b84911SRob Clark ret = drm_gem_object_init(dev, obj, size); 108005b84911SRob Clark if (ret) 108105b84911SRob Clark goto fail; 10820abdba47SLucas Stach /* 10830abdba47SLucas Stach * Our buffers are kept pinned, so allocating them from the 10840abdba47SLucas Stach * MOVABLE zone is a really bad idea, and conflicts with CMA. 10850abdba47SLucas Stach * See comments above new_inode() why this is required _and_ 10860abdba47SLucas Stach * expected if you're going to pin these pages. 10870abdba47SLucas Stach */ 10880abdba47SLucas Stach mapping_set_gfp_mask(obj->filp->f_mapping, GFP_HIGHUSER); 1089871d812aSRob Clark } 109005b84911SRob Clark 109105b84911SRob Clark return obj; 109205b84911SRob Clark 109305b84911SRob Clark fail: 1094dc9a9b32SSteve Kowalik drm_gem_object_put_unlocked(obj); 109505b84911SRob Clark return ERR_PTR(ret); 109605b84911SRob Clark } 109705b84911SRob Clark 10980e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev, 10990e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 11000e08270aSSushmita Susheelendra { 11010e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, true); 11020e08270aSSushmita Susheelendra } 11030e08270aSSushmita Susheelendra 11040e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new(struct drm_device *dev, 11050e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 11060e08270aSSushmita Susheelendra { 11070e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, false); 11080e08270aSSushmita Susheelendra } 11090e08270aSSushmita Susheelendra 111005b84911SRob Clark struct drm_gem_object *msm_gem_import(struct drm_device *dev, 111179f0e202SRob Clark struct dma_buf *dmabuf, struct sg_table *sgt) 111205b84911SRob Clark { 111305b84911SRob Clark struct msm_gem_object *msm_obj; 111405b84911SRob Clark struct drm_gem_object *obj; 111579f0e202SRob Clark uint32_t size; 111605b84911SRob Clark int ret, npages; 111705b84911SRob Clark 1118871d812aSRob Clark /* if we don't have IOMMU, don't bother pretending we can import: */ 1119c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) { 11206a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "cannot import without IOMMU\n"); 1121871d812aSRob Clark return ERR_PTR(-EINVAL); 1122871d812aSRob Clark } 1123871d812aSRob Clark 112479f0e202SRob Clark size = PAGE_ALIGN(dmabuf->size); 112505b84911SRob Clark 11260e08270aSSushmita Susheelendra ret = msm_gem_new_impl(dev, size, MSM_BO_WC, dmabuf->resv, &obj, false); 112705b84911SRob Clark if (ret) 112805b84911SRob Clark goto fail; 112905b84911SRob Clark 113005b84911SRob Clark drm_gem_private_object_init(dev, obj, size); 113105b84911SRob Clark 113205b84911SRob Clark npages = size / PAGE_SIZE; 113305b84911SRob Clark 113405b84911SRob Clark msm_obj = to_msm_bo(obj); 11350e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 113605b84911SRob Clark msm_obj->sgt = sgt; 11372098105eSMichal Hocko msm_obj->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 113805b84911SRob Clark if (!msm_obj->pages) { 11390e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 114005b84911SRob Clark ret = -ENOMEM; 114105b84911SRob Clark goto fail; 114205b84911SRob Clark } 114305b84911SRob Clark 114405b84911SRob Clark ret = drm_prime_sg_to_page_addr_arrays(sgt, msm_obj->pages, NULL, npages); 11450e08270aSSushmita Susheelendra if (ret) { 11460e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 114705b84911SRob Clark goto fail; 11480e08270aSSushmita Susheelendra } 114905b84911SRob Clark 11500e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 1151c8afe684SRob Clark return obj; 1152c8afe684SRob Clark 1153c8afe684SRob Clark fail: 1154dc9a9b32SSteve Kowalik drm_gem_object_put_unlocked(obj); 1155c8afe684SRob Clark return ERR_PTR(ret); 1156c8afe684SRob Clark } 11578223286dSJordan Crouse 11588223286dSJordan Crouse static void *_msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 11598223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 11608223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova, bool locked) 11618223286dSJordan Crouse { 11628223286dSJordan Crouse void *vaddr; 11638223286dSJordan Crouse struct drm_gem_object *obj = _msm_gem_new(dev, size, flags, locked); 11648223286dSJordan Crouse int ret; 11658223286dSJordan Crouse 11668223286dSJordan Crouse if (IS_ERR(obj)) 11678223286dSJordan Crouse return ERR_CAST(obj); 11688223286dSJordan Crouse 11698223286dSJordan Crouse if (iova) { 11709fe041f6SJordan Crouse ret = msm_gem_get_and_pin_iova(obj, aspace, iova); 117193f7abf1SJordan Crouse if (ret) 117293f7abf1SJordan Crouse goto err; 11738223286dSJordan Crouse } 11748223286dSJordan Crouse 11758223286dSJordan Crouse vaddr = msm_gem_get_vaddr(obj); 1176c9811d0fSWei Yongjun if (IS_ERR(vaddr)) { 11777ad0e8cfSJordan Crouse msm_gem_unpin_iova(obj, aspace); 117893f7abf1SJordan Crouse ret = PTR_ERR(vaddr); 117993f7abf1SJordan Crouse goto err; 11808223286dSJordan Crouse } 11818223286dSJordan Crouse 11828223286dSJordan Crouse if (bo) 11838223286dSJordan Crouse *bo = obj; 11848223286dSJordan Crouse 11858223286dSJordan Crouse return vaddr; 118693f7abf1SJordan Crouse err: 118793f7abf1SJordan Crouse if (locked) 118893f7abf1SJordan Crouse drm_gem_object_put(obj); 118993f7abf1SJordan Crouse else 119093f7abf1SJordan Crouse drm_gem_object_put_unlocked(obj); 119193f7abf1SJordan Crouse 119293f7abf1SJordan Crouse return ERR_PTR(ret); 119393f7abf1SJordan Crouse 11948223286dSJordan Crouse } 11958223286dSJordan Crouse 11968223286dSJordan Crouse void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 11978223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 11988223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 11998223286dSJordan Crouse { 12008223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, false); 12018223286dSJordan Crouse } 12028223286dSJordan Crouse 12038223286dSJordan Crouse void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size, 12048223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 12058223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 12068223286dSJordan Crouse { 12078223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, true); 12088223286dSJordan Crouse } 12091e29dff0SJordan Crouse 12101e29dff0SJordan Crouse void msm_gem_kernel_put(struct drm_gem_object *bo, 12111e29dff0SJordan Crouse struct msm_gem_address_space *aspace, bool locked) 12121e29dff0SJordan Crouse { 12131e29dff0SJordan Crouse if (IS_ERR_OR_NULL(bo)) 12141e29dff0SJordan Crouse return; 12151e29dff0SJordan Crouse 12161e29dff0SJordan Crouse msm_gem_put_vaddr(bo); 12177ad0e8cfSJordan Crouse msm_gem_unpin_iova(bo, aspace); 12181e29dff0SJordan Crouse 12191e29dff0SJordan Crouse if (locked) 12201e29dff0SJordan Crouse drm_gem_object_put(bo); 12211e29dff0SJordan Crouse else 12221e29dff0SJordan Crouse drm_gem_object_put_unlocked(bo); 12231e29dff0SJordan Crouse } 12240815d774SJordan Crouse 12250815d774SJordan Crouse void msm_gem_object_set_name(struct drm_gem_object *bo, const char *fmt, ...) 12260815d774SJordan Crouse { 12270815d774SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(bo); 12280815d774SJordan Crouse va_list ap; 12290815d774SJordan Crouse 12300815d774SJordan Crouse if (!fmt) 12310815d774SJordan Crouse return; 12320815d774SJordan Crouse 12330815d774SJordan Crouse va_start(ap, fmt); 12340815d774SJordan Crouse vsnprintf(msm_obj->name, sizeof(msm_obj->name), fmt, ap); 12350815d774SJordan Crouse va_end(ap); 12360815d774SJordan Crouse } 1237