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 35871d812aSRob Clark /* allocate pages from VRAM carveout, used when no IOMMU: */ 360e08270aSSushmita Susheelendra static struct page **get_pages_vram(struct drm_gem_object *obj, int npages) 37871d812aSRob Clark { 38871d812aSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 39871d812aSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 40871d812aSRob Clark dma_addr_t paddr; 41871d812aSRob Clark struct page **p; 42871d812aSRob Clark int ret, i; 43871d812aSRob Clark 442098105eSMichal Hocko p = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 45871d812aSRob Clark if (!p) 46871d812aSRob Clark return ERR_PTR(-ENOMEM); 47871d812aSRob Clark 480e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 494e64e553SChris Wilson ret = drm_mm_insert_node(&priv->vram.mm, msm_obj->vram_node, npages); 500e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 51871d812aSRob Clark if (ret) { 522098105eSMichal Hocko kvfree(p); 53871d812aSRob Clark return ERR_PTR(ret); 54871d812aSRob Clark } 55871d812aSRob Clark 56871d812aSRob Clark paddr = physaddr(obj); 57871d812aSRob Clark for (i = 0; i < npages; i++) { 58871d812aSRob Clark p[i] = phys_to_page(paddr); 59871d812aSRob Clark paddr += PAGE_SIZE; 60871d812aSRob Clark } 61871d812aSRob Clark 62871d812aSRob Clark return p; 63871d812aSRob Clark } 64c8afe684SRob Clark 65c8afe684SRob Clark static struct page **get_pages(struct drm_gem_object *obj) 66c8afe684SRob Clark { 67c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 68c8afe684SRob Clark 69c8afe684SRob Clark if (!msm_obj->pages) { 70c8afe684SRob Clark struct drm_device *dev = obj->dev; 71871d812aSRob Clark struct page **p; 72c8afe684SRob Clark int npages = obj->size >> PAGE_SHIFT; 73c8afe684SRob Clark 74072f1f91SRob Clark if (use_pages(obj)) 750cdbe8acSDavid Herrmann p = drm_gem_get_pages(obj); 76871d812aSRob Clark else 77871d812aSRob Clark p = get_pages_vram(obj, npages); 78871d812aSRob Clark 79c8afe684SRob Clark if (IS_ERR(p)) { 806a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not get pages: %ld\n", 81c8afe684SRob Clark PTR_ERR(p)); 82c8afe684SRob Clark return p; 83c8afe684SRob Clark } 84c8afe684SRob Clark 8562e3a3e3SPrakash Kamliya msm_obj->pages = p; 8662e3a3e3SPrakash Kamliya 87c8afe684SRob Clark msm_obj->sgt = drm_prime_pages_to_sg(p, npages); 881f70e079SWei Yongjun if (IS_ERR(msm_obj->sgt)) { 8962e3a3e3SPrakash Kamliya void *ptr = ERR_CAST(msm_obj->sgt); 90c8afe684SRob Clark 916a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "failed to allocate sgt\n"); 9262e3a3e3SPrakash Kamliya msm_obj->sgt = NULL; 9362e3a3e3SPrakash Kamliya return ptr; 9462e3a3e3SPrakash Kamliya } 95c8afe684SRob Clark 96c8afe684SRob Clark /* For non-cached buffers, ensure the new pages are clean 97c8afe684SRob Clark * because display controller, GPU, etc. are not coherent: 98c8afe684SRob Clark */ 99c8afe684SRob Clark if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) 100c8afe684SRob Clark dma_map_sg(dev->dev, msm_obj->sgt->sgl, 101c8afe684SRob Clark msm_obj->sgt->nents, DMA_BIDIRECTIONAL); 102c8afe684SRob Clark } 103c8afe684SRob Clark 104c8afe684SRob Clark return msm_obj->pages; 105c8afe684SRob Clark } 106c8afe684SRob Clark 1070e08270aSSushmita Susheelendra static void put_pages_vram(struct drm_gem_object *obj) 1080e08270aSSushmita Susheelendra { 1090e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 1100e08270aSSushmita Susheelendra struct msm_drm_private *priv = obj->dev->dev_private; 1110e08270aSSushmita Susheelendra 1120e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 1130e08270aSSushmita Susheelendra drm_mm_remove_node(msm_obj->vram_node); 1140e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 1150e08270aSSushmita Susheelendra 1160e08270aSSushmita Susheelendra kvfree(msm_obj->pages); 1170e08270aSSushmita Susheelendra } 1180e08270aSSushmita Susheelendra 119c8afe684SRob Clark static void put_pages(struct drm_gem_object *obj) 120c8afe684SRob Clark { 121c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 122c8afe684SRob Clark 123c8afe684SRob Clark if (msm_obj->pages) { 1243976626eSBen Hutchings if (msm_obj->sgt) { 1253976626eSBen Hutchings /* For non-cached buffers, ensure the new 1263976626eSBen Hutchings * pages are clean because display controller, 1273976626eSBen Hutchings * GPU, etc. are not coherent: 128c8afe684SRob Clark */ 129c8afe684SRob Clark if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) 130c8afe684SRob Clark dma_unmap_sg(obj->dev->dev, msm_obj->sgt->sgl, 1313976626eSBen Hutchings msm_obj->sgt->nents, 1323976626eSBen Hutchings DMA_BIDIRECTIONAL); 13362e3a3e3SPrakash Kamliya 134c8afe684SRob Clark sg_free_table(msm_obj->sgt); 135c8afe684SRob Clark kfree(msm_obj->sgt); 1363976626eSBen Hutchings } 137c8afe684SRob Clark 138072f1f91SRob Clark if (use_pages(obj)) 139c8afe684SRob Clark drm_gem_put_pages(obj, msm_obj->pages, true, false); 1400e08270aSSushmita Susheelendra else 1410e08270aSSushmita Susheelendra put_pages_vram(obj); 142871d812aSRob Clark 143c8afe684SRob Clark msm_obj->pages = NULL; 144c8afe684SRob Clark } 145c8afe684SRob Clark } 146c8afe684SRob Clark 14705b84911SRob Clark struct page **msm_gem_get_pages(struct drm_gem_object *obj) 14805b84911SRob Clark { 1490e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 15005b84911SRob Clark struct page **p; 1510e08270aSSushmita Susheelendra 1520e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 1530e08270aSSushmita Susheelendra 1540e08270aSSushmita Susheelendra if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 1550e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 1560e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 1570e08270aSSushmita Susheelendra } 1580e08270aSSushmita Susheelendra 15905b84911SRob Clark p = get_pages(obj); 1600e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 16105b84911SRob Clark return p; 16205b84911SRob Clark } 16305b84911SRob Clark 16405b84911SRob Clark void msm_gem_put_pages(struct drm_gem_object *obj) 16505b84911SRob Clark { 16605b84911SRob Clark /* when we start tracking the pin count, then do something here */ 16705b84911SRob Clark } 16805b84911SRob Clark 169c8afe684SRob Clark int msm_gem_mmap_obj(struct drm_gem_object *obj, 170c8afe684SRob Clark struct vm_area_struct *vma) 171c8afe684SRob Clark { 172c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 173c8afe684SRob Clark 174c8afe684SRob Clark vma->vm_flags &= ~VM_PFNMAP; 175c8afe684SRob Clark vma->vm_flags |= VM_MIXEDMAP; 176c8afe684SRob Clark 177c8afe684SRob Clark if (msm_obj->flags & MSM_BO_WC) { 178c8afe684SRob Clark vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); 179c8afe684SRob Clark } else if (msm_obj->flags & MSM_BO_UNCACHED) { 180c8afe684SRob Clark vma->vm_page_prot = pgprot_noncached(vm_get_page_prot(vma->vm_flags)); 181c8afe684SRob Clark } else { 182c8afe684SRob Clark /* 183c8afe684SRob Clark * Shunt off cached objs to shmem file so they have their own 184c8afe684SRob Clark * address_space (so unmap_mapping_range does what we want, 185c8afe684SRob Clark * in particular in the case of mmap'd dmabufs) 186c8afe684SRob Clark */ 187c8afe684SRob Clark fput(vma->vm_file); 188c8afe684SRob Clark get_file(obj->filp); 189c8afe684SRob Clark vma->vm_pgoff = 0; 190c8afe684SRob Clark vma->vm_file = obj->filp; 191c8afe684SRob Clark 192c8afe684SRob Clark vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); 193c8afe684SRob Clark } 194c8afe684SRob Clark 195c8afe684SRob Clark return 0; 196c8afe684SRob Clark } 197c8afe684SRob Clark 198c8afe684SRob Clark int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma) 199c8afe684SRob Clark { 200c8afe684SRob Clark int ret; 201c8afe684SRob Clark 202c8afe684SRob Clark ret = drm_gem_mmap(filp, vma); 203c8afe684SRob Clark if (ret) { 204c8afe684SRob Clark DBG("mmap failed: %d", ret); 205c8afe684SRob Clark return ret; 206c8afe684SRob Clark } 207c8afe684SRob Clark 208c8afe684SRob Clark return msm_gem_mmap_obj(vma->vm_private_data, vma); 209c8afe684SRob Clark } 210c8afe684SRob Clark 211a5f74ec7SSouptick Joarder vm_fault_t msm_gem_fault(struct vm_fault *vmf) 212c8afe684SRob Clark { 21311bac800SDave Jiang struct vm_area_struct *vma = vmf->vma; 214c8afe684SRob Clark struct drm_gem_object *obj = vma->vm_private_data; 2150e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 216c8afe684SRob Clark struct page **pages; 217c8afe684SRob Clark unsigned long pfn; 218c8afe684SRob Clark pgoff_t pgoff; 219a5f74ec7SSouptick Joarder int err; 220a5f74ec7SSouptick Joarder vm_fault_t ret; 221c8afe684SRob Clark 2220e08270aSSushmita Susheelendra /* 2230e08270aSSushmita Susheelendra * vm_ops.open/drm_gem_mmap_obj and close get and put 2240e08270aSSushmita Susheelendra * a reference on obj. So, we dont need to hold one here. 225d78d383aSRob Clark */ 226a5f74ec7SSouptick Joarder err = mutex_lock_interruptible(&msm_obj->lock); 227a5f74ec7SSouptick Joarder if (err) { 228a5f74ec7SSouptick Joarder ret = VM_FAULT_NOPAGE; 229c8afe684SRob Clark goto out; 230a5f74ec7SSouptick Joarder } 231c8afe684SRob Clark 2320e08270aSSushmita Susheelendra if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 2330e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 2340e08270aSSushmita Susheelendra return VM_FAULT_SIGBUS; 2350e08270aSSushmita Susheelendra } 2360e08270aSSushmita Susheelendra 237c8afe684SRob Clark /* make sure we have pages attached now */ 238c8afe684SRob Clark pages = get_pages(obj); 239c8afe684SRob Clark if (IS_ERR(pages)) { 240a5f74ec7SSouptick Joarder ret = vmf_error(PTR_ERR(pages)); 241c8afe684SRob Clark goto out_unlock; 242c8afe684SRob Clark } 243c8afe684SRob Clark 244c8afe684SRob Clark /* We don't use vmf->pgoff since that has the fake offset: */ 2451a29d85eSJan Kara pgoff = (vmf->address - vma->vm_start) >> PAGE_SHIFT; 246c8afe684SRob Clark 247871d812aSRob Clark pfn = page_to_pfn(pages[pgoff]); 248c8afe684SRob Clark 2491a29d85eSJan Kara VERB("Inserting %p pfn %lx, pa %lx", (void *)vmf->address, 250c8afe684SRob Clark pfn, pfn << PAGE_SHIFT); 251c8afe684SRob Clark 252a5f74ec7SSouptick Joarder ret = vmf_insert_mixed(vma, vmf->address, __pfn_to_pfn_t(pfn, PFN_DEV)); 253c8afe684SRob Clark out_unlock: 2540e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 255c8afe684SRob Clark out: 256a5f74ec7SSouptick Joarder return ret; 257c8afe684SRob Clark } 258c8afe684SRob Clark 259c8afe684SRob Clark /** get mmap offset */ 260c8afe684SRob Clark static uint64_t mmap_offset(struct drm_gem_object *obj) 261c8afe684SRob Clark { 262c8afe684SRob Clark struct drm_device *dev = obj->dev; 2630e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 264c8afe684SRob Clark int ret; 265c8afe684SRob Clark 2660e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 267c8afe684SRob Clark 268c8afe684SRob Clark /* Make it mmapable */ 269c8afe684SRob Clark ret = drm_gem_create_mmap_offset(obj); 270c8afe684SRob Clark 271c8afe684SRob Clark if (ret) { 2726a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not allocate mmap offset\n"); 273c8afe684SRob Clark return 0; 274c8afe684SRob Clark } 275c8afe684SRob Clark 276c8afe684SRob Clark return drm_vma_node_offset_addr(&obj->vma_node); 277c8afe684SRob Clark } 278c8afe684SRob Clark 279c8afe684SRob Clark uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj) 280c8afe684SRob Clark { 281c8afe684SRob Clark uint64_t offset; 2820e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 2830e08270aSSushmita Susheelendra 2840e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 285c8afe684SRob Clark offset = mmap_offset(obj); 2860e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 287c8afe684SRob Clark return offset; 288c8afe684SRob Clark } 289c8afe684SRob Clark 2904b85f7f5SRob Clark static struct msm_gem_vma *add_vma(struct drm_gem_object *obj, 2914b85f7f5SRob Clark struct msm_gem_address_space *aspace) 2924b85f7f5SRob Clark { 2934b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 2944b85f7f5SRob Clark struct msm_gem_vma *vma; 2954b85f7f5SRob Clark 2960e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 2970e08270aSSushmita Susheelendra 2984b85f7f5SRob Clark vma = kzalloc(sizeof(*vma), GFP_KERNEL); 2994b85f7f5SRob Clark if (!vma) 3004b85f7f5SRob Clark return ERR_PTR(-ENOMEM); 3014b85f7f5SRob Clark 3024b85f7f5SRob Clark vma->aspace = aspace; 3034b85f7f5SRob Clark 3044b85f7f5SRob Clark list_add_tail(&vma->list, &msm_obj->vmas); 3054b85f7f5SRob Clark 3064b85f7f5SRob Clark return vma; 3074b85f7f5SRob Clark } 3084b85f7f5SRob Clark 3094b85f7f5SRob Clark static struct msm_gem_vma *lookup_vma(struct drm_gem_object *obj, 3104b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3114b85f7f5SRob Clark { 3124b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3134b85f7f5SRob Clark struct msm_gem_vma *vma; 3144b85f7f5SRob Clark 3150e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 3164b85f7f5SRob Clark 3174b85f7f5SRob Clark list_for_each_entry(vma, &msm_obj->vmas, list) { 3184b85f7f5SRob Clark if (vma->aspace == aspace) 3194b85f7f5SRob Clark return vma; 3204b85f7f5SRob Clark } 3214b85f7f5SRob Clark 3224b85f7f5SRob Clark return NULL; 3234b85f7f5SRob Clark } 3244b85f7f5SRob Clark 3254b85f7f5SRob Clark static void del_vma(struct msm_gem_vma *vma) 3264b85f7f5SRob Clark { 3274b85f7f5SRob Clark if (!vma) 3284b85f7f5SRob Clark return; 3294b85f7f5SRob Clark 3304b85f7f5SRob Clark list_del(&vma->list); 3314b85f7f5SRob Clark kfree(vma); 3324b85f7f5SRob Clark } 3334b85f7f5SRob Clark 3340e08270aSSushmita Susheelendra /* Called with msm_obj->lock locked */ 3354fe5f65eSRob Clark static void 3364fe5f65eSRob Clark put_iova(struct drm_gem_object *obj) 3374fe5f65eSRob Clark { 3384fe5f65eSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3394b85f7f5SRob Clark struct msm_gem_vma *vma, *tmp; 3404fe5f65eSRob Clark 3410e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 3424fe5f65eSRob Clark 3434b85f7f5SRob Clark list_for_each_entry_safe(vma, tmp, &msm_obj->vmas, list) { 3447ad0e8cfSJordan Crouse msm_gem_purge_vma(vma->aspace, vma); 3457ad0e8cfSJordan Crouse msm_gem_close_vma(vma->aspace, vma); 3464b85f7f5SRob Clark del_vma(vma); 3474fe5f65eSRob Clark } 3484fe5f65eSRob Clark } 3494fe5f65eSRob Clark 350c0ee9794SJordan Crouse static int msm_gem_get_iova_locked(struct drm_gem_object *obj, 3518bdcd949SRob Clark struct msm_gem_address_space *aspace, uint64_t *iova) 352c8afe684SRob Clark { 353c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3544b85f7f5SRob Clark struct msm_gem_vma *vma; 355c8afe684SRob Clark int ret = 0; 356c8afe684SRob Clark 357c0ee9794SJordan Crouse WARN_ON(!mutex_is_locked(&msm_obj->lock)); 358cb1e3818SRob Clark 3594b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 360871d812aSRob Clark 3614b85f7f5SRob Clark if (!vma) { 3624b85f7f5SRob Clark vma = add_vma(obj, aspace); 363c0ee9794SJordan Crouse if (IS_ERR(vma)) 364c0ee9794SJordan Crouse return PTR_ERR(vma); 3654b85f7f5SRob Clark 366c0ee9794SJordan Crouse ret = msm_gem_init_vma(aspace, vma, obj->size >> PAGE_SHIFT); 367c0ee9794SJordan Crouse if (ret) { 368c0ee9794SJordan Crouse del_vma(vma); 369c0ee9794SJordan Crouse return ret; 370c8afe684SRob Clark } 3714b85f7f5SRob Clark } 3724b85f7f5SRob Clark 3734b85f7f5SRob Clark *iova = vma->iova; 3744b85f7f5SRob Clark return 0; 375c0ee9794SJordan Crouse } 3764b85f7f5SRob Clark 377c0ee9794SJordan Crouse static int msm_gem_pin_iova(struct drm_gem_object *obj, 378c0ee9794SJordan Crouse struct msm_gem_address_space *aspace) 379c0ee9794SJordan Crouse { 380c0ee9794SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 381c0ee9794SJordan Crouse struct msm_gem_vma *vma; 382c0ee9794SJordan Crouse struct page **pages; 383bbc2cd07SRob Clark int prot = IOMMU_READ; 384bbc2cd07SRob Clark 385bbc2cd07SRob Clark if (!(msm_obj->flags & MSM_BO_GPU_READONLY)) 386bbc2cd07SRob Clark prot |= IOMMU_WRITE; 387c0ee9794SJordan Crouse 388c0ee9794SJordan Crouse WARN_ON(!mutex_is_locked(&msm_obj->lock)); 389c0ee9794SJordan Crouse 390c0ee9794SJordan Crouse if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) 391c0ee9794SJordan Crouse return -EBUSY; 392c0ee9794SJordan Crouse 393c0ee9794SJordan Crouse vma = lookup_vma(obj, aspace); 394c0ee9794SJordan Crouse if (WARN_ON(!vma)) 395c0ee9794SJordan Crouse return -EINVAL; 396c0ee9794SJordan Crouse 397c0ee9794SJordan Crouse pages = get_pages(obj); 398c0ee9794SJordan Crouse if (IS_ERR(pages)) 399c0ee9794SJordan Crouse return PTR_ERR(pages); 400c0ee9794SJordan Crouse 401bbc2cd07SRob Clark return msm_gem_map_vma(aspace, vma, prot, 402bbc2cd07SRob Clark msm_obj->sgt, obj->size >> PAGE_SHIFT); 403c0ee9794SJordan Crouse } 404c0ee9794SJordan Crouse 4059fe041f6SJordan Crouse /* get iova and pin it. Should have a matching put */ 4069fe041f6SJordan Crouse int msm_gem_get_and_pin_iova(struct drm_gem_object *obj, 407c0ee9794SJordan Crouse struct msm_gem_address_space *aspace, uint64_t *iova) 408c0ee9794SJordan Crouse { 409c0ee9794SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 410c0ee9794SJordan Crouse u64 local; 411c0ee9794SJordan Crouse int ret; 412c0ee9794SJordan Crouse 413c0ee9794SJordan Crouse mutex_lock(&msm_obj->lock); 414c0ee9794SJordan Crouse 415c0ee9794SJordan Crouse ret = msm_gem_get_iova_locked(obj, aspace, &local); 416c0ee9794SJordan Crouse 417c0ee9794SJordan Crouse if (!ret) 418c0ee9794SJordan Crouse ret = msm_gem_pin_iova(obj, aspace); 419c0ee9794SJordan Crouse 420c0ee9794SJordan Crouse if (!ret) 421c0ee9794SJordan Crouse *iova = local; 422c0ee9794SJordan Crouse 4230e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 424c8afe684SRob Clark return ret; 425c8afe684SRob Clark } 426c8afe684SRob Clark 4277ad0e8cfSJordan Crouse /* 4287ad0e8cfSJordan Crouse * Get an iova but don't pin it. Doesn't need a put because iovas are currently 4297ad0e8cfSJordan Crouse * valid for the life of the object 4307ad0e8cfSJordan Crouse */ 4319fe041f6SJordan Crouse int msm_gem_get_iova(struct drm_gem_object *obj, 4329fe041f6SJordan Crouse struct msm_gem_address_space *aspace, uint64_t *iova) 4339fe041f6SJordan Crouse { 4349fe041f6SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 4359fe041f6SJordan Crouse int ret; 4369fe041f6SJordan Crouse 4379fe041f6SJordan Crouse mutex_lock(&msm_obj->lock); 4389fe041f6SJordan Crouse ret = msm_gem_get_iova_locked(obj, aspace, iova); 4399fe041f6SJordan Crouse mutex_unlock(&msm_obj->lock); 4409fe041f6SJordan Crouse 4419fe041f6SJordan Crouse return ret; 4429fe041f6SJordan Crouse } 4439fe041f6SJordan Crouse 4442638d90aSRob Clark /* get iova without taking a reference, used in places where you have 4459fe041f6SJordan Crouse * already done a 'msm_gem_get_and_pin_iova' or 'msm_gem_get_iova' 4462638d90aSRob Clark */ 4478bdcd949SRob Clark uint64_t msm_gem_iova(struct drm_gem_object *obj, 4488bdcd949SRob Clark struct msm_gem_address_space *aspace) 4492638d90aSRob Clark { 4500e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 4514b85f7f5SRob Clark struct msm_gem_vma *vma; 4524b85f7f5SRob Clark 4530e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 4544b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 4550e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 4564b85f7f5SRob Clark WARN_ON(!vma); 4574b85f7f5SRob Clark 4584b85f7f5SRob Clark return vma ? vma->iova : 0; 4592638d90aSRob Clark } 4602638d90aSRob Clark 4617ad0e8cfSJordan Crouse /* 4627ad0e8cfSJordan Crouse * Unpin a iova by updating the reference counts. The memory isn't actually 4637ad0e8cfSJordan Crouse * purged until something else (shrinker, mm_notifier, destroy, etc) decides 4647ad0e8cfSJordan Crouse * to get rid of it 4657ad0e8cfSJordan Crouse */ 4667ad0e8cfSJordan Crouse void msm_gem_unpin_iova(struct drm_gem_object *obj, 4678bdcd949SRob Clark struct msm_gem_address_space *aspace) 468c8afe684SRob Clark { 4697ad0e8cfSJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 4707ad0e8cfSJordan Crouse struct msm_gem_vma *vma; 4717ad0e8cfSJordan Crouse 4727ad0e8cfSJordan Crouse mutex_lock(&msm_obj->lock); 4737ad0e8cfSJordan Crouse vma = lookup_vma(obj, aspace); 4747ad0e8cfSJordan Crouse 4757ad0e8cfSJordan Crouse if (!WARN_ON(!vma)) 4767ad0e8cfSJordan Crouse msm_gem_unmap_vma(aspace, vma); 4777ad0e8cfSJordan Crouse 4787ad0e8cfSJordan Crouse mutex_unlock(&msm_obj->lock); 479c8afe684SRob Clark } 480c8afe684SRob Clark 481c8afe684SRob Clark int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 482c8afe684SRob Clark struct drm_mode_create_dumb *args) 483c8afe684SRob Clark { 484c8afe684SRob Clark args->pitch = align_pitch(args->width, args->bpp); 485c8afe684SRob Clark args->size = PAGE_ALIGN(args->pitch * args->height); 486c8afe684SRob Clark return msm_gem_new_handle(dev, file, args->size, 4870815d774SJordan Crouse MSM_BO_SCANOUT | MSM_BO_WC, &args->handle, "dumb"); 488c8afe684SRob Clark } 489c8afe684SRob Clark 490c8afe684SRob Clark int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 491c8afe684SRob Clark uint32_t handle, uint64_t *offset) 492c8afe684SRob Clark { 493c8afe684SRob Clark struct drm_gem_object *obj; 494c8afe684SRob Clark int ret = 0; 495c8afe684SRob Clark 496c8afe684SRob Clark /* GEM does all our handle to object mapping */ 497a8ad0bd8SChris Wilson obj = drm_gem_object_lookup(file, handle); 498c8afe684SRob Clark if (obj == NULL) { 499c8afe684SRob Clark ret = -ENOENT; 500c8afe684SRob Clark goto fail; 501c8afe684SRob Clark } 502c8afe684SRob Clark 503c8afe684SRob Clark *offset = msm_gem_mmap_offset(obj); 504c8afe684SRob Clark 505dc9a9b32SSteve Kowalik drm_gem_object_put_unlocked(obj); 506c8afe684SRob Clark 507c8afe684SRob Clark fail: 508c8afe684SRob Clark return ret; 509c8afe684SRob Clark } 510c8afe684SRob Clark 511fad33f4bSRob Clark static void *get_vaddr(struct drm_gem_object *obj, unsigned madv) 512c8afe684SRob Clark { 5130e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 5140e08270aSSushmita Susheelendra int ret = 0; 5150e08270aSSushmita Susheelendra 5160e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 5170e08270aSSushmita Susheelendra 518fad33f4bSRob Clark if (WARN_ON(msm_obj->madv > madv)) { 5196a41da17SMamta Shukla DRM_DEV_ERROR(obj->dev->dev, "Invalid madv state: %u vs %u\n", 520fad33f4bSRob Clark msm_obj->madv, madv); 5210e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5220e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 523c8afe684SRob Clark } 524c8afe684SRob Clark 5250e08270aSSushmita Susheelendra /* increment vmap_count *before* vmap() call, so shrinker can 5260e08270aSSushmita Susheelendra * check vmap_count (is_vunmapable()) outside of msm_obj->lock. 5270e08270aSSushmita Susheelendra * This guarantees that we won't try to msm_gem_vunmap() this 5280e08270aSSushmita Susheelendra * same object from within the vmap() call (while we already 5290e08270aSSushmita Susheelendra * hold msm_obj->lock) 5300e08270aSSushmita Susheelendra */ 5310e08270aSSushmita Susheelendra msm_obj->vmap_count++; 5320e08270aSSushmita Susheelendra 5330e08270aSSushmita Susheelendra if (!msm_obj->vaddr) { 5340e08270aSSushmita Susheelendra struct page **pages = get_pages(obj); 5350e08270aSSushmita Susheelendra if (IS_ERR(pages)) { 5360e08270aSSushmita Susheelendra ret = PTR_ERR(pages); 5370e08270aSSushmita Susheelendra goto fail; 5380e08270aSSushmita Susheelendra } 5390e08270aSSushmita Susheelendra msm_obj->vaddr = vmap(pages, obj->size >> PAGE_SHIFT, 5400e08270aSSushmita Susheelendra VM_MAP, pgprot_writecombine(PAGE_KERNEL)); 5410e08270aSSushmita Susheelendra if (msm_obj->vaddr == NULL) { 5420e08270aSSushmita Susheelendra ret = -ENOMEM; 5430e08270aSSushmita Susheelendra goto fail; 5440e08270aSSushmita Susheelendra } 5450e08270aSSushmita Susheelendra } 5460e08270aSSushmita Susheelendra 5470e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5480e08270aSSushmita Susheelendra return msm_obj->vaddr; 5490e08270aSSushmita Susheelendra 5500e08270aSSushmita Susheelendra fail: 551e1e9db2cSRob Clark msm_obj->vmap_count--; 5520e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5530e08270aSSushmita Susheelendra return ERR_PTR(ret); 55418f23049SRob Clark } 55518f23049SRob Clark 556fad33f4bSRob Clark void *msm_gem_get_vaddr(struct drm_gem_object *obj) 557fad33f4bSRob Clark { 558fad33f4bSRob Clark return get_vaddr(obj, MSM_MADV_WILLNEED); 559fad33f4bSRob Clark } 560fad33f4bSRob Clark 561fad33f4bSRob Clark /* 562fad33f4bSRob Clark * Don't use this! It is for the very special case of dumping 563fad33f4bSRob Clark * submits from GPU hangs or faults, were the bo may already 564fad33f4bSRob Clark * be MSM_MADV_DONTNEED, but we know the buffer is still on the 565fad33f4bSRob Clark * active list. 566fad33f4bSRob Clark */ 567fad33f4bSRob Clark void *msm_gem_get_vaddr_active(struct drm_gem_object *obj) 568fad33f4bSRob Clark { 569fad33f4bSRob Clark return get_vaddr(obj, __MSM_MADV_PURGED); 570fad33f4bSRob Clark } 571fad33f4bSRob Clark 57218f23049SRob Clark void msm_gem_put_vaddr(struct drm_gem_object *obj) 57318f23049SRob Clark { 5740e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 5750e08270aSSushmita Susheelendra 5760e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 5770e08270aSSushmita Susheelendra WARN_ON(msm_obj->vmap_count < 1); 5780e08270aSSushmita Susheelendra msm_obj->vmap_count--; 5790e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 58018f23049SRob Clark } 58118f23049SRob Clark 5824cd33c48SRob Clark /* Update madvise status, returns true if not purged, else 5834cd33c48SRob Clark * false or -errno. 5844cd33c48SRob Clark */ 5854cd33c48SRob Clark int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv) 5864cd33c48SRob Clark { 5874cd33c48SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 5884cd33c48SRob Clark 5890e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 5900e08270aSSushmita Susheelendra 5914cd33c48SRob Clark WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex)); 5924cd33c48SRob Clark 5934cd33c48SRob Clark if (msm_obj->madv != __MSM_MADV_PURGED) 5944cd33c48SRob Clark msm_obj->madv = madv; 5954cd33c48SRob Clark 5960e08270aSSushmita Susheelendra madv = msm_obj->madv; 5970e08270aSSushmita Susheelendra 5980e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5990e08270aSSushmita Susheelendra 6000e08270aSSushmita Susheelendra return (madv != __MSM_MADV_PURGED); 6014cd33c48SRob Clark } 6024cd33c48SRob Clark 6030e08270aSSushmita Susheelendra void msm_gem_purge(struct drm_gem_object *obj, enum msm_gem_lock subclass) 60468209390SRob Clark { 60568209390SRob Clark struct drm_device *dev = obj->dev; 60668209390SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 60768209390SRob Clark 60868209390SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 60968209390SRob Clark WARN_ON(!is_purgeable(msm_obj)); 61068209390SRob Clark WARN_ON(obj->import_attach); 61168209390SRob Clark 6120e08270aSSushmita Susheelendra mutex_lock_nested(&msm_obj->lock, subclass); 6130e08270aSSushmita Susheelendra 61468209390SRob Clark put_iova(obj); 61568209390SRob Clark 6160e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 61768209390SRob Clark 61868209390SRob Clark put_pages(obj); 61968209390SRob Clark 62068209390SRob Clark msm_obj->madv = __MSM_MADV_PURGED; 62168209390SRob Clark 62268209390SRob Clark drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); 62368209390SRob Clark drm_gem_free_mmap_offset(obj); 62468209390SRob Clark 62568209390SRob Clark /* Our goal here is to return as much of the memory as 62668209390SRob Clark * is possible back to the system as we are called from OOM. 62768209390SRob Clark * To do this we must instruct the shmfs to drop all of its 62868209390SRob Clark * backing pages, *now*. 62968209390SRob Clark */ 63068209390SRob Clark shmem_truncate_range(file_inode(obj->filp), 0, (loff_t)-1); 63168209390SRob Clark 63268209390SRob Clark invalidate_mapping_pages(file_inode(obj->filp)->i_mapping, 63368209390SRob Clark 0, (loff_t)-1); 6340e08270aSSushmita Susheelendra 6350e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 63668209390SRob Clark } 63768209390SRob Clark 6380e08270aSSushmita Susheelendra static void msm_gem_vunmap_locked(struct drm_gem_object *obj) 639e1e9db2cSRob Clark { 640e1e9db2cSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 641e1e9db2cSRob Clark 6420e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 6430e08270aSSushmita Susheelendra 644e1e9db2cSRob Clark if (!msm_obj->vaddr || WARN_ON(!is_vunmapable(msm_obj))) 645e1e9db2cSRob Clark return; 646e1e9db2cSRob Clark 647e1e9db2cSRob Clark vunmap(msm_obj->vaddr); 648e1e9db2cSRob Clark msm_obj->vaddr = NULL; 649e1e9db2cSRob Clark } 650e1e9db2cSRob Clark 6510e08270aSSushmita Susheelendra void msm_gem_vunmap(struct drm_gem_object *obj, enum msm_gem_lock subclass) 6520e08270aSSushmita Susheelendra { 6530e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 6540e08270aSSushmita Susheelendra 6550e08270aSSushmita Susheelendra mutex_lock_nested(&msm_obj->lock, subclass); 6560e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 6570e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 6580e08270aSSushmita Susheelendra } 6590e08270aSSushmita Susheelendra 660b6295f9aSRob Clark /* must be called before _move_to_active().. */ 661b6295f9aSRob Clark int msm_gem_sync_object(struct drm_gem_object *obj, 662b6295f9aSRob Clark struct msm_fence_context *fctx, bool exclusive) 663b6295f9aSRob Clark { 664b6295f9aSRob Clark struct reservation_object_list *fobj; 665f54d1867SChris Wilson struct dma_fence *fence; 666b6295f9aSRob Clark int i, ret; 667b6295f9aSRob Clark 668dd55cf69SRob Herring fobj = reservation_object_get_list(obj->resv); 669b6295f9aSRob Clark if (!fobj || (fobj->shared_count == 0)) { 670dd55cf69SRob Herring fence = reservation_object_get_excl(obj->resv); 671b6295f9aSRob Clark /* don't need to wait on our own fences, since ring is fifo */ 672b6295f9aSRob Clark if (fence && (fence->context != fctx->context)) { 673f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 674b6295f9aSRob Clark if (ret) 675b6295f9aSRob Clark return ret; 676b6295f9aSRob Clark } 677b6295f9aSRob Clark } 678b6295f9aSRob Clark 679b6295f9aSRob Clark if (!exclusive || !fobj) 680b6295f9aSRob Clark return 0; 681b6295f9aSRob Clark 682b6295f9aSRob Clark for (i = 0; i < fobj->shared_count; i++) { 683b6295f9aSRob Clark fence = rcu_dereference_protected(fobj->shared[i], 684dd55cf69SRob Herring reservation_object_held(obj->resv)); 685b6295f9aSRob Clark if (fence->context != fctx->context) { 686f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 687b6295f9aSRob Clark if (ret) 688b6295f9aSRob Clark return ret; 689b6295f9aSRob Clark } 690b6295f9aSRob Clark } 691b6295f9aSRob Clark 692b6295f9aSRob Clark return 0; 693b6295f9aSRob Clark } 694b6295f9aSRob Clark 6957198e6b0SRob Clark void msm_gem_move_to_active(struct drm_gem_object *obj, 696f54d1867SChris Wilson struct msm_gpu *gpu, bool exclusive, struct dma_fence *fence) 6977198e6b0SRob Clark { 6987198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 6994cd33c48SRob Clark WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED); 7007198e6b0SRob Clark msm_obj->gpu = gpu; 701b6295f9aSRob Clark if (exclusive) 702dd55cf69SRob Herring reservation_object_add_excl_fence(obj->resv, fence); 703bf6811f3SRob Clark else 704dd55cf69SRob Herring reservation_object_add_shared_fence(obj->resv, fence); 7057198e6b0SRob Clark list_del_init(&msm_obj->mm_list); 7067198e6b0SRob Clark list_add_tail(&msm_obj->mm_list, &gpu->active_list); 7077198e6b0SRob Clark } 7087198e6b0SRob Clark 7097198e6b0SRob Clark void msm_gem_move_to_inactive(struct drm_gem_object *obj) 7107198e6b0SRob Clark { 7117198e6b0SRob Clark struct drm_device *dev = obj->dev; 7127198e6b0SRob Clark struct msm_drm_private *priv = dev->dev_private; 7137198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 7147198e6b0SRob Clark 7157198e6b0SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 7167198e6b0SRob Clark 7177198e6b0SRob Clark msm_obj->gpu = NULL; 7187198e6b0SRob Clark list_del_init(&msm_obj->mm_list); 7197198e6b0SRob Clark list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 7207198e6b0SRob Clark } 7217198e6b0SRob Clark 722ba00c3f2SRob Clark int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout) 723ba00c3f2SRob Clark { 724b6295f9aSRob Clark bool write = !!(op & MSM_PREP_WRITE); 725f755e227SChris Wilson unsigned long remain = 726f755e227SChris Wilson op & MSM_PREP_NOSYNC ? 0 : timeout_to_jiffies(timeout); 727f755e227SChris Wilson long ret; 728b6295f9aSRob Clark 729dd55cf69SRob Herring ret = reservation_object_wait_timeout_rcu(obj->resv, write, 730f755e227SChris Wilson true, remain); 731f755e227SChris Wilson if (ret == 0) 732f755e227SChris Wilson return remain == 0 ? -EBUSY : -ETIMEDOUT; 733f755e227SChris Wilson else if (ret < 0) 734f755e227SChris Wilson return ret; 735ba00c3f2SRob Clark 7367198e6b0SRob Clark /* TODO cache maintenance */ 7377198e6b0SRob Clark 738b6295f9aSRob Clark return 0; 7397198e6b0SRob Clark } 7407198e6b0SRob Clark 7417198e6b0SRob Clark int msm_gem_cpu_fini(struct drm_gem_object *obj) 7427198e6b0SRob Clark { 7437198e6b0SRob Clark /* TODO cache maintenance */ 744c8afe684SRob Clark return 0; 745c8afe684SRob Clark } 746c8afe684SRob Clark 747c8afe684SRob Clark #ifdef CONFIG_DEBUG_FS 748f54d1867SChris Wilson static void describe_fence(struct dma_fence *fence, const char *type, 749b6295f9aSRob Clark struct seq_file *m) 750b6295f9aSRob Clark { 751f54d1867SChris Wilson if (!dma_fence_is_signaled(fence)) 752a3115621SDave Airlie seq_printf(m, "\t%9s: %s %s seq %llu\n", type, 753b6295f9aSRob Clark fence->ops->get_driver_name(fence), 754b6295f9aSRob Clark fence->ops->get_timeline_name(fence), 755b6295f9aSRob Clark fence->seqno); 756b6295f9aSRob Clark } 757b6295f9aSRob Clark 758c8afe684SRob Clark void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m) 759c8afe684SRob Clark { 760c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 761dd55cf69SRob Herring struct reservation_object *robj = obj->resv; 762b6295f9aSRob Clark struct reservation_object_list *fobj; 763f54d1867SChris Wilson struct dma_fence *fence; 7644b85f7f5SRob Clark struct msm_gem_vma *vma; 765c8afe684SRob Clark uint64_t off = drm_vma_node_start(&obj->vma_node); 7664cd33c48SRob Clark const char *madv; 767c8afe684SRob Clark 7680e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 769b6295f9aSRob Clark 7704cd33c48SRob Clark switch (msm_obj->madv) { 7714cd33c48SRob Clark case __MSM_MADV_PURGED: 7724cd33c48SRob Clark madv = " purged"; 7734cd33c48SRob Clark break; 7744cd33c48SRob Clark case MSM_MADV_DONTNEED: 7754cd33c48SRob Clark madv = " purgeable"; 7764cd33c48SRob Clark break; 7774cd33c48SRob Clark case MSM_MADV_WILLNEED: 7784cd33c48SRob Clark default: 7794cd33c48SRob Clark madv = ""; 7804cd33c48SRob Clark break; 7814cd33c48SRob Clark } 7824cd33c48SRob Clark 783575f0485SJordan Crouse seq_printf(m, "%08x: %c %2d (%2d) %08llx %p", 7847198e6b0SRob Clark msm_obj->flags, is_active(msm_obj) ? 'A' : 'I', 7852c935bc5SPeter Zijlstra obj->name, kref_read(&obj->refcount), 786667ce33eSRob Clark off, msm_obj->vaddr); 787667ce33eSRob Clark 7880815d774SJordan Crouse seq_printf(m, " %08zu %9s %-32s\n", obj->size, madv, msm_obj->name); 789667ce33eSRob Clark 790575f0485SJordan Crouse if (!list_empty(&msm_obj->vmas)) { 791575f0485SJordan Crouse 792575f0485SJordan Crouse seq_puts(m, " vmas:"); 793575f0485SJordan Crouse 794575f0485SJordan Crouse list_for_each_entry(vma, &msm_obj->vmas, list) 79590f94660SBrian Masney seq_printf(m, " [%s: %08llx,%s,inuse=%d]", 79690f94660SBrian Masney vma->aspace != NULL ? vma->aspace->name : NULL, 7977ad0e8cfSJordan Crouse vma->iova, vma->mapped ? "mapped" : "unmapped", 7987ad0e8cfSJordan Crouse vma->inuse); 799575f0485SJordan Crouse 800575f0485SJordan Crouse seq_puts(m, "\n"); 801575f0485SJordan Crouse } 802b6295f9aSRob Clark 803b6295f9aSRob Clark rcu_read_lock(); 804b6295f9aSRob Clark fobj = rcu_dereference(robj->fence); 805b6295f9aSRob Clark if (fobj) { 806b6295f9aSRob Clark unsigned int i, shared_count = fobj->shared_count; 807b6295f9aSRob Clark 808b6295f9aSRob Clark for (i = 0; i < shared_count; i++) { 809b6295f9aSRob Clark fence = rcu_dereference(fobj->shared[i]); 810b6295f9aSRob Clark describe_fence(fence, "Shared", m); 811b6295f9aSRob Clark } 812b6295f9aSRob Clark } 813b6295f9aSRob Clark 814b6295f9aSRob Clark fence = rcu_dereference(robj->fence_excl); 815b6295f9aSRob Clark if (fence) 816b6295f9aSRob Clark describe_fence(fence, "Exclusive", m); 817b6295f9aSRob Clark rcu_read_unlock(); 8180e08270aSSushmita Susheelendra 8190e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 820c8afe684SRob Clark } 821c8afe684SRob Clark 822c8afe684SRob Clark void msm_gem_describe_objects(struct list_head *list, struct seq_file *m) 823c8afe684SRob Clark { 824c8afe684SRob Clark struct msm_gem_object *msm_obj; 825c8afe684SRob Clark int count = 0; 826c8afe684SRob Clark size_t size = 0; 827c8afe684SRob Clark 8280815d774SJordan Crouse seq_puts(m, " flags id ref offset kaddr size madv name\n"); 829c8afe684SRob Clark list_for_each_entry(msm_obj, list, mm_list) { 830c8afe684SRob Clark struct drm_gem_object *obj = &msm_obj->base; 831575f0485SJordan Crouse seq_puts(m, " "); 832c8afe684SRob Clark msm_gem_describe(obj, m); 833c8afe684SRob Clark count++; 834c8afe684SRob Clark size += obj->size; 835c8afe684SRob Clark } 836c8afe684SRob Clark 837c8afe684SRob Clark seq_printf(m, "Total %d objects, %zu bytes\n", count, size); 838c8afe684SRob Clark } 839c8afe684SRob Clark #endif 840c8afe684SRob Clark 841d71b6bd8SRob Clark /* don't call directly! Use drm_gem_object_put() and friends */ 842c8afe684SRob Clark void msm_gem_free_object(struct drm_gem_object *obj) 843c8afe684SRob Clark { 844c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 84548e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 84648e7f183SKristian H. Kristensen struct msm_drm_private *priv = dev->dev_private; 84748e7f183SKristian H. Kristensen 84848e7f183SKristian H. Kristensen if (llist_add(&msm_obj->freed, &priv->free_list)) 84948e7f183SKristian H. Kristensen queue_work(priv->wq, &priv->free_work); 85048e7f183SKristian H. Kristensen } 85148e7f183SKristian H. Kristensen 85248e7f183SKristian H. Kristensen static void free_object(struct msm_gem_object *msm_obj) 85348e7f183SKristian H. Kristensen { 85448e7f183SKristian H. Kristensen struct drm_gem_object *obj = &msm_obj->base; 85548e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 856c8afe684SRob Clark 857c8afe684SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 858c8afe684SRob Clark 8597198e6b0SRob Clark /* object should not be on active list: */ 8607198e6b0SRob Clark WARN_ON(is_active(msm_obj)); 8617198e6b0SRob Clark 862c8afe684SRob Clark list_del(&msm_obj->mm_list); 863c8afe684SRob Clark 8640e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 8650e08270aSSushmita Susheelendra 8664fe5f65eSRob Clark put_iova(obj); 867c8afe684SRob Clark 86805b84911SRob Clark if (obj->import_attach) { 86905b84911SRob Clark if (msm_obj->vaddr) 87005b84911SRob Clark dma_buf_vunmap(obj->import_attach->dmabuf, msm_obj->vaddr); 87105b84911SRob Clark 87205b84911SRob Clark /* Don't drop the pages for imported dmabuf, as they are not 87305b84911SRob Clark * ours, just free the array we allocated: 87405b84911SRob Clark */ 87505b84911SRob Clark if (msm_obj->pages) 8762098105eSMichal Hocko kvfree(msm_obj->pages); 87705b84911SRob Clark 878f28730c8Sjilai wang drm_prime_gem_destroy(obj, msm_obj->sgt); 87905b84911SRob Clark } else { 8800e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 881c8afe684SRob Clark put_pages(obj); 88205b84911SRob Clark } 883c8afe684SRob Clark 884c8afe684SRob Clark drm_gem_object_release(obj); 885c8afe684SRob Clark 8860e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 887c8afe684SRob Clark kfree(msm_obj); 888c8afe684SRob Clark } 889c8afe684SRob Clark 89048e7f183SKristian H. Kristensen void msm_gem_free_work(struct work_struct *work) 89148e7f183SKristian H. Kristensen { 89248e7f183SKristian H. Kristensen struct msm_drm_private *priv = 89348e7f183SKristian H. Kristensen container_of(work, struct msm_drm_private, free_work); 89448e7f183SKristian H. Kristensen struct drm_device *dev = priv->dev; 89548e7f183SKristian H. Kristensen struct llist_node *freed; 89648e7f183SKristian H. Kristensen struct msm_gem_object *msm_obj, *next; 89748e7f183SKristian H. Kristensen 89848e7f183SKristian H. Kristensen while ((freed = llist_del_all(&priv->free_list))) { 89948e7f183SKristian H. Kristensen 90048e7f183SKristian H. Kristensen mutex_lock(&dev->struct_mutex); 90148e7f183SKristian H. Kristensen 90248e7f183SKristian H. Kristensen llist_for_each_entry_safe(msm_obj, next, 90348e7f183SKristian H. Kristensen freed, freed) 90448e7f183SKristian H. Kristensen free_object(msm_obj); 90548e7f183SKristian H. Kristensen 90648e7f183SKristian H. Kristensen mutex_unlock(&dev->struct_mutex); 90748e7f183SKristian H. Kristensen 90848e7f183SKristian H. Kristensen if (need_resched()) 90948e7f183SKristian H. Kristensen break; 91048e7f183SKristian H. Kristensen } 91148e7f183SKristian H. Kristensen } 91248e7f183SKristian H. Kristensen 913c8afe684SRob Clark /* convenience method to construct a GEM buffer object, and userspace handle */ 914c8afe684SRob Clark int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file, 9150815d774SJordan Crouse uint32_t size, uint32_t flags, uint32_t *handle, 9160815d774SJordan Crouse char *name) 917c8afe684SRob Clark { 918c8afe684SRob Clark struct drm_gem_object *obj; 919c8afe684SRob Clark int ret; 920c8afe684SRob Clark 921c8afe684SRob Clark obj = msm_gem_new(dev, size, flags); 922c8afe684SRob Clark 923c8afe684SRob Clark if (IS_ERR(obj)) 924c8afe684SRob Clark return PTR_ERR(obj); 925c8afe684SRob Clark 9260815d774SJordan Crouse if (name) 9270815d774SJordan Crouse msm_gem_object_set_name(obj, "%s", name); 9280815d774SJordan Crouse 929c8afe684SRob Clark ret = drm_gem_handle_create(file, obj, handle); 930c8afe684SRob Clark 931c8afe684SRob Clark /* drop reference from allocate - handle holds it now */ 932dc9a9b32SSteve Kowalik drm_gem_object_put_unlocked(obj); 933c8afe684SRob Clark 934c8afe684SRob Clark return ret; 935c8afe684SRob Clark } 936c8afe684SRob Clark 93705b84911SRob Clark static int msm_gem_new_impl(struct drm_device *dev, 93805b84911SRob Clark uint32_t size, uint32_t flags, 93979f0e202SRob Clark struct reservation_object *resv, 9400e08270aSSushmita Susheelendra struct drm_gem_object **obj, 9410e08270aSSushmita Susheelendra bool struct_mutex_locked) 942c8afe684SRob Clark { 943c8afe684SRob Clark struct msm_drm_private *priv = dev->dev_private; 944c8afe684SRob Clark struct msm_gem_object *msm_obj; 945c8afe684SRob Clark 946c8afe684SRob Clark switch (flags & MSM_BO_CACHE_MASK) { 947c8afe684SRob Clark case MSM_BO_UNCACHED: 948c8afe684SRob Clark case MSM_BO_CACHED: 949c8afe684SRob Clark case MSM_BO_WC: 950c8afe684SRob Clark break; 951c8afe684SRob Clark default: 9526a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "invalid cache flag: %x\n", 953c8afe684SRob Clark (flags & MSM_BO_CACHE_MASK)); 95405b84911SRob Clark return -EINVAL; 955c8afe684SRob Clark } 956c8afe684SRob Clark 957667ce33eSRob Clark msm_obj = kzalloc(sizeof(*msm_obj), GFP_KERNEL); 95805b84911SRob Clark if (!msm_obj) 95905b84911SRob Clark return -ENOMEM; 960c8afe684SRob Clark 9610e08270aSSushmita Susheelendra mutex_init(&msm_obj->lock); 9620e08270aSSushmita Susheelendra 963c8afe684SRob Clark msm_obj->flags = flags; 9644cd33c48SRob Clark msm_obj->madv = MSM_MADV_WILLNEED; 965c8afe684SRob Clark 966dd55cf69SRob Herring if (resv) 967dd55cf69SRob Herring msm_obj->base.resv = resv; 968c8afe684SRob Clark 9697198e6b0SRob Clark INIT_LIST_HEAD(&msm_obj->submit_entry); 9704b85f7f5SRob Clark INIT_LIST_HEAD(&msm_obj->vmas); 9714b85f7f5SRob Clark 9720e08270aSSushmita Susheelendra if (struct_mutex_locked) { 9730e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 974c8afe684SRob Clark list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 9750e08270aSSushmita Susheelendra } else { 9760e08270aSSushmita Susheelendra mutex_lock(&dev->struct_mutex); 9770e08270aSSushmita Susheelendra list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 9780e08270aSSushmita Susheelendra mutex_unlock(&dev->struct_mutex); 9790e08270aSSushmita Susheelendra } 980c8afe684SRob Clark 98105b84911SRob Clark *obj = &msm_obj->base; 98205b84911SRob Clark 98305b84911SRob Clark return 0; 98405b84911SRob Clark } 98505b84911SRob Clark 9860e08270aSSushmita Susheelendra static struct drm_gem_object *_msm_gem_new(struct drm_device *dev, 9870e08270aSSushmita Susheelendra uint32_t size, uint32_t flags, bool struct_mutex_locked) 98805b84911SRob Clark { 989f4839bd5SRob Clark struct msm_drm_private *priv = dev->dev_private; 990871d812aSRob Clark struct drm_gem_object *obj = NULL; 991f4839bd5SRob Clark bool use_vram = false; 99205b84911SRob Clark int ret; 99305b84911SRob Clark 99405b84911SRob Clark size = PAGE_ALIGN(size); 99505b84911SRob Clark 996c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) 997f4839bd5SRob Clark use_vram = true; 99886f46f25SJonathan Marek else if ((flags & (MSM_BO_STOLEN | MSM_BO_SCANOUT)) && priv->vram.size) 999f4839bd5SRob Clark use_vram = true; 1000f4839bd5SRob Clark 1001f4839bd5SRob Clark if (WARN_ON(use_vram && !priv->vram.size)) 1002f4839bd5SRob Clark return ERR_PTR(-EINVAL); 1003f4839bd5SRob Clark 10041a5dff5dSJordan Crouse /* Disallow zero sized objects as they make the underlying 10051a5dff5dSJordan Crouse * infrastructure grumpy 10061a5dff5dSJordan Crouse */ 10071a5dff5dSJordan Crouse if (size == 0) 10081a5dff5dSJordan Crouse return ERR_PTR(-EINVAL); 10091a5dff5dSJordan Crouse 10100e08270aSSushmita Susheelendra ret = msm_gem_new_impl(dev, size, flags, NULL, &obj, struct_mutex_locked); 101105b84911SRob Clark if (ret) 101205b84911SRob Clark goto fail; 101305b84911SRob Clark 1014f4839bd5SRob Clark if (use_vram) { 10154b85f7f5SRob Clark struct msm_gem_vma *vma; 1016f4839bd5SRob Clark struct page **pages; 1017b3949a9aSHans Verkuil struct msm_gem_object *msm_obj = to_msm_bo(obj); 1018b3949a9aSHans Verkuil 1019b3949a9aSHans Verkuil mutex_lock(&msm_obj->lock); 1020f4839bd5SRob Clark 10214b85f7f5SRob Clark vma = add_vma(obj, NULL); 1022b3949a9aSHans Verkuil mutex_unlock(&msm_obj->lock); 10234b85f7f5SRob Clark if (IS_ERR(vma)) { 10244b85f7f5SRob Clark ret = PTR_ERR(vma); 10254b85f7f5SRob Clark goto fail; 10264b85f7f5SRob Clark } 10274b85f7f5SRob Clark 10284b85f7f5SRob Clark to_msm_bo(obj)->vram_node = &vma->node; 10294b85f7f5SRob Clark 1030f4839bd5SRob Clark drm_gem_private_object_init(dev, obj, size); 1031f4839bd5SRob Clark 1032f4839bd5SRob Clark pages = get_pages(obj); 1033f4839bd5SRob Clark if (IS_ERR(pages)) { 1034f4839bd5SRob Clark ret = PTR_ERR(pages); 1035f4839bd5SRob Clark goto fail; 1036f4839bd5SRob Clark } 10374b85f7f5SRob Clark 10384b85f7f5SRob Clark vma->iova = physaddr(obj); 1039f4839bd5SRob Clark } else { 104005b84911SRob Clark ret = drm_gem_object_init(dev, obj, size); 104105b84911SRob Clark if (ret) 104205b84911SRob Clark goto fail; 10430abdba47SLucas Stach /* 10440abdba47SLucas Stach * Our buffers are kept pinned, so allocating them from the 10450abdba47SLucas Stach * MOVABLE zone is a really bad idea, and conflicts with CMA. 10460abdba47SLucas Stach * See comments above new_inode() why this is required _and_ 10470abdba47SLucas Stach * expected if you're going to pin these pages. 10480abdba47SLucas Stach */ 10490abdba47SLucas Stach mapping_set_gfp_mask(obj->filp->f_mapping, GFP_HIGHUSER); 1050871d812aSRob Clark } 105105b84911SRob Clark 105205b84911SRob Clark return obj; 105305b84911SRob Clark 105405b84911SRob Clark fail: 1055dc9a9b32SSteve Kowalik drm_gem_object_put_unlocked(obj); 105605b84911SRob Clark return ERR_PTR(ret); 105705b84911SRob Clark } 105805b84911SRob Clark 10590e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev, 10600e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 10610e08270aSSushmita Susheelendra { 10620e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, true); 10630e08270aSSushmita Susheelendra } 10640e08270aSSushmita Susheelendra 10650e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new(struct drm_device *dev, 10660e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 10670e08270aSSushmita Susheelendra { 10680e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, false); 10690e08270aSSushmita Susheelendra } 10700e08270aSSushmita Susheelendra 107105b84911SRob Clark struct drm_gem_object *msm_gem_import(struct drm_device *dev, 107279f0e202SRob Clark struct dma_buf *dmabuf, struct sg_table *sgt) 107305b84911SRob Clark { 107405b84911SRob Clark struct msm_gem_object *msm_obj; 107505b84911SRob Clark struct drm_gem_object *obj; 107679f0e202SRob Clark uint32_t size; 107705b84911SRob Clark int ret, npages; 107805b84911SRob Clark 1079871d812aSRob Clark /* if we don't have IOMMU, don't bother pretending we can import: */ 1080c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) { 10816a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "cannot import without IOMMU\n"); 1082871d812aSRob Clark return ERR_PTR(-EINVAL); 1083871d812aSRob Clark } 1084871d812aSRob Clark 108579f0e202SRob Clark size = PAGE_ALIGN(dmabuf->size); 108605b84911SRob Clark 10870e08270aSSushmita Susheelendra ret = msm_gem_new_impl(dev, size, MSM_BO_WC, dmabuf->resv, &obj, false); 108805b84911SRob Clark if (ret) 108905b84911SRob Clark goto fail; 109005b84911SRob Clark 109105b84911SRob Clark drm_gem_private_object_init(dev, obj, size); 109205b84911SRob Clark 109305b84911SRob Clark npages = size / PAGE_SIZE; 109405b84911SRob Clark 109505b84911SRob Clark msm_obj = to_msm_bo(obj); 10960e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 109705b84911SRob Clark msm_obj->sgt = sgt; 10982098105eSMichal Hocko msm_obj->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 109905b84911SRob Clark if (!msm_obj->pages) { 11000e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 110105b84911SRob Clark ret = -ENOMEM; 110205b84911SRob Clark goto fail; 110305b84911SRob Clark } 110405b84911SRob Clark 110505b84911SRob Clark ret = drm_prime_sg_to_page_addr_arrays(sgt, msm_obj->pages, NULL, npages); 11060e08270aSSushmita Susheelendra if (ret) { 11070e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 110805b84911SRob Clark goto fail; 11090e08270aSSushmita Susheelendra } 111005b84911SRob Clark 11110e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 1112c8afe684SRob Clark return obj; 1113c8afe684SRob Clark 1114c8afe684SRob Clark fail: 1115dc9a9b32SSteve Kowalik drm_gem_object_put_unlocked(obj); 1116c8afe684SRob Clark return ERR_PTR(ret); 1117c8afe684SRob Clark } 11188223286dSJordan Crouse 11198223286dSJordan Crouse static void *_msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 11208223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 11218223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova, bool locked) 11228223286dSJordan Crouse { 11238223286dSJordan Crouse void *vaddr; 11248223286dSJordan Crouse struct drm_gem_object *obj = _msm_gem_new(dev, size, flags, locked); 11258223286dSJordan Crouse int ret; 11268223286dSJordan Crouse 11278223286dSJordan Crouse if (IS_ERR(obj)) 11288223286dSJordan Crouse return ERR_CAST(obj); 11298223286dSJordan Crouse 11308223286dSJordan Crouse if (iova) { 11319fe041f6SJordan Crouse ret = msm_gem_get_and_pin_iova(obj, aspace, iova); 113293f7abf1SJordan Crouse if (ret) 113393f7abf1SJordan Crouse goto err; 11348223286dSJordan Crouse } 11358223286dSJordan Crouse 11368223286dSJordan Crouse vaddr = msm_gem_get_vaddr(obj); 1137c9811d0fSWei Yongjun if (IS_ERR(vaddr)) { 11387ad0e8cfSJordan Crouse msm_gem_unpin_iova(obj, aspace); 113993f7abf1SJordan Crouse ret = PTR_ERR(vaddr); 114093f7abf1SJordan Crouse goto err; 11418223286dSJordan Crouse } 11428223286dSJordan Crouse 11438223286dSJordan Crouse if (bo) 11448223286dSJordan Crouse *bo = obj; 11458223286dSJordan Crouse 11468223286dSJordan Crouse return vaddr; 114793f7abf1SJordan Crouse err: 114893f7abf1SJordan Crouse if (locked) 114993f7abf1SJordan Crouse drm_gem_object_put(obj); 115093f7abf1SJordan Crouse else 115193f7abf1SJordan Crouse drm_gem_object_put_unlocked(obj); 115293f7abf1SJordan Crouse 115393f7abf1SJordan Crouse return ERR_PTR(ret); 115493f7abf1SJordan Crouse 11558223286dSJordan Crouse } 11568223286dSJordan Crouse 11578223286dSJordan Crouse void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 11588223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 11598223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 11608223286dSJordan Crouse { 11618223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, false); 11628223286dSJordan Crouse } 11638223286dSJordan Crouse 11648223286dSJordan Crouse void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size, 11658223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 11668223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 11678223286dSJordan Crouse { 11688223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, true); 11698223286dSJordan Crouse } 11701e29dff0SJordan Crouse 11711e29dff0SJordan Crouse void msm_gem_kernel_put(struct drm_gem_object *bo, 11721e29dff0SJordan Crouse struct msm_gem_address_space *aspace, bool locked) 11731e29dff0SJordan Crouse { 11741e29dff0SJordan Crouse if (IS_ERR_OR_NULL(bo)) 11751e29dff0SJordan Crouse return; 11761e29dff0SJordan Crouse 11771e29dff0SJordan Crouse msm_gem_put_vaddr(bo); 11787ad0e8cfSJordan Crouse msm_gem_unpin_iova(bo, aspace); 11791e29dff0SJordan Crouse 11801e29dff0SJordan Crouse if (locked) 11811e29dff0SJordan Crouse drm_gem_object_put(bo); 11821e29dff0SJordan Crouse else 11831e29dff0SJordan Crouse drm_gem_object_put_unlocked(bo); 11841e29dff0SJordan Crouse } 11850815d774SJordan Crouse 11860815d774SJordan Crouse void msm_gem_object_set_name(struct drm_gem_object *bo, const char *fmt, ...) 11870815d774SJordan Crouse { 11880815d774SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(bo); 11890815d774SJordan Crouse va_list ap; 11900815d774SJordan Crouse 11910815d774SJordan Crouse if (!fmt) 11920815d774SJordan Crouse return; 11930815d774SJordan Crouse 11940815d774SJordan Crouse va_start(ap, fmt); 11950815d774SJordan Crouse vsnprintf(msm_obj->name, sizeof(msm_obj->name), fmt, ap); 11960815d774SJordan Crouse va_end(ap); 11970815d774SJordan Crouse } 1198