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 12feea39a8SSam Ravnborg #include <drm/drm_prime.h> 13feea39a8SSam Ravnborg 14c8afe684SRob Clark #include "msm_drv.h" 15fde5de6cSRob Clark #include "msm_fence.h" 16c8afe684SRob Clark #include "msm_gem.h" 177198e6b0SRob Clark #include "msm_gpu.h" 18871d812aSRob Clark #include "msm_mmu.h" 19c8afe684SRob Clark 200e08270aSSushmita Susheelendra static void msm_gem_vunmap_locked(struct drm_gem_object *obj); 210e08270aSSushmita Susheelendra 220e08270aSSushmita Susheelendra 23871d812aSRob Clark static dma_addr_t physaddr(struct drm_gem_object *obj) 24871d812aSRob Clark { 25871d812aSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 26871d812aSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 27871d812aSRob Clark return (((dma_addr_t)msm_obj->vram_node->start) << PAGE_SHIFT) + 28871d812aSRob Clark priv->vram.paddr; 29871d812aSRob Clark } 30871d812aSRob Clark 31072f1f91SRob Clark static bool use_pages(struct drm_gem_object *obj) 32072f1f91SRob Clark { 33072f1f91SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 34072f1f91SRob Clark return !msm_obj->vram_node; 35072f1f91SRob Clark } 36072f1f91SRob Clark 373de433c5SRob Clark /* 383de433c5SRob Clark * Cache sync.. this is a bit over-complicated, to fit dma-mapping 393de433c5SRob Clark * API. Really GPU cache is out of scope here (handled on cmdstream) 403de433c5SRob Clark * and all we need to do is invalidate newly allocated pages before 413de433c5SRob Clark * mapping to CPU as uncached/writecombine. 423de433c5SRob Clark * 433de433c5SRob Clark * On top of this, we have the added headache, that depending on 443de433c5SRob Clark * display generation, the display's iommu may be wired up to either 453de433c5SRob Clark * the toplevel drm device (mdss), or to the mdp sub-node, meaning 463de433c5SRob Clark * that here we either have dma-direct or iommu ops. 473de433c5SRob Clark * 483de433c5SRob Clark * Let this be a cautionary tail of abstraction gone wrong. 493de433c5SRob Clark */ 503de433c5SRob Clark 513de433c5SRob Clark static void sync_for_device(struct msm_gem_object *msm_obj) 523de433c5SRob Clark { 533de433c5SRob Clark struct device *dev = msm_obj->base.dev->dev; 543de433c5SRob Clark 553de433c5SRob Clark dma_map_sg(dev, msm_obj->sgt->sgl, 563de433c5SRob Clark msm_obj->sgt->nents, DMA_BIDIRECTIONAL); 573de433c5SRob Clark } 583de433c5SRob Clark 593de433c5SRob Clark static void sync_for_cpu(struct msm_gem_object *msm_obj) 603de433c5SRob Clark { 613de433c5SRob Clark struct device *dev = msm_obj->base.dev->dev; 623de433c5SRob Clark 633de433c5SRob Clark dma_unmap_sg(dev, msm_obj->sgt->sgl, 643de433c5SRob Clark msm_obj->sgt->nents, DMA_BIDIRECTIONAL); 653de433c5SRob Clark } 663de433c5SRob Clark 67871d812aSRob Clark /* allocate pages from VRAM carveout, used when no IOMMU: */ 680e08270aSSushmita Susheelendra static struct page **get_pages_vram(struct drm_gem_object *obj, int npages) 69871d812aSRob Clark { 70871d812aSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 71871d812aSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 72871d812aSRob Clark dma_addr_t paddr; 73871d812aSRob Clark struct page **p; 74871d812aSRob Clark int ret, i; 75871d812aSRob Clark 762098105eSMichal Hocko p = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 77871d812aSRob Clark if (!p) 78871d812aSRob Clark return ERR_PTR(-ENOMEM); 79871d812aSRob Clark 800e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 814e64e553SChris Wilson ret = drm_mm_insert_node(&priv->vram.mm, msm_obj->vram_node, npages); 820e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 83871d812aSRob Clark if (ret) { 842098105eSMichal Hocko kvfree(p); 85871d812aSRob Clark return ERR_PTR(ret); 86871d812aSRob Clark } 87871d812aSRob Clark 88871d812aSRob Clark paddr = physaddr(obj); 89871d812aSRob Clark for (i = 0; i < npages; i++) { 90871d812aSRob Clark p[i] = phys_to_page(paddr); 91871d812aSRob Clark paddr += PAGE_SIZE; 92871d812aSRob Clark } 93871d812aSRob Clark 94871d812aSRob Clark return p; 95871d812aSRob Clark } 96c8afe684SRob Clark 97c8afe684SRob Clark static struct page **get_pages(struct drm_gem_object *obj) 98c8afe684SRob Clark { 99c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 100c8afe684SRob Clark 101c8afe684SRob Clark if (!msm_obj->pages) { 102c8afe684SRob Clark struct drm_device *dev = obj->dev; 103871d812aSRob Clark struct page **p; 104c8afe684SRob Clark int npages = obj->size >> PAGE_SHIFT; 105c8afe684SRob Clark 106072f1f91SRob Clark if (use_pages(obj)) 1070cdbe8acSDavid Herrmann p = drm_gem_get_pages(obj); 108871d812aSRob Clark else 109871d812aSRob Clark p = get_pages_vram(obj, npages); 110871d812aSRob Clark 111c8afe684SRob Clark if (IS_ERR(p)) { 1126a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not get pages: %ld\n", 113c8afe684SRob Clark PTR_ERR(p)); 114c8afe684SRob Clark return p; 115c8afe684SRob Clark } 116c8afe684SRob Clark 11762e3a3e3SPrakash Kamliya msm_obj->pages = p; 11862e3a3e3SPrakash Kamliya 119c8afe684SRob Clark msm_obj->sgt = drm_prime_pages_to_sg(p, npages); 1201f70e079SWei Yongjun if (IS_ERR(msm_obj->sgt)) { 12162e3a3e3SPrakash Kamliya void *ptr = ERR_CAST(msm_obj->sgt); 122c8afe684SRob Clark 1236a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "failed to allocate sgt\n"); 12462e3a3e3SPrakash Kamliya msm_obj->sgt = NULL; 12562e3a3e3SPrakash Kamliya return ptr; 12662e3a3e3SPrakash Kamliya } 127c8afe684SRob Clark 128c8afe684SRob Clark /* For non-cached buffers, ensure the new pages are clean 129c8afe684SRob Clark * because display controller, GPU, etc. are not coherent: 130c8afe684SRob Clark */ 131c8afe684SRob Clark if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) 1323de433c5SRob Clark sync_for_device(msm_obj); 133c8afe684SRob Clark } 134c8afe684SRob Clark 135c8afe684SRob Clark return msm_obj->pages; 136c8afe684SRob Clark } 137c8afe684SRob Clark 1380e08270aSSushmita Susheelendra static void put_pages_vram(struct drm_gem_object *obj) 1390e08270aSSushmita Susheelendra { 1400e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 1410e08270aSSushmita Susheelendra struct msm_drm_private *priv = obj->dev->dev_private; 1420e08270aSSushmita Susheelendra 1430e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 1440e08270aSSushmita Susheelendra drm_mm_remove_node(msm_obj->vram_node); 1450e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 1460e08270aSSushmita Susheelendra 1470e08270aSSushmita Susheelendra kvfree(msm_obj->pages); 1480e08270aSSushmita Susheelendra } 1490e08270aSSushmita Susheelendra 150c8afe684SRob Clark static void put_pages(struct drm_gem_object *obj) 151c8afe684SRob Clark { 152c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 153c8afe684SRob Clark 154c8afe684SRob Clark if (msm_obj->pages) { 1553976626eSBen Hutchings if (msm_obj->sgt) { 1563976626eSBen Hutchings /* For non-cached buffers, ensure the new 1573976626eSBen Hutchings * pages are clean because display controller, 1583976626eSBen Hutchings * GPU, etc. are not coherent: 159c8afe684SRob Clark */ 160c8afe684SRob Clark if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) 1613de433c5SRob Clark sync_for_cpu(msm_obj); 16262e3a3e3SPrakash Kamliya 163c8afe684SRob Clark sg_free_table(msm_obj->sgt); 164c8afe684SRob Clark kfree(msm_obj->sgt); 1653976626eSBen Hutchings } 166c8afe684SRob Clark 167072f1f91SRob Clark if (use_pages(obj)) 168c8afe684SRob Clark drm_gem_put_pages(obj, msm_obj->pages, true, false); 1690e08270aSSushmita Susheelendra else 1700e08270aSSushmita Susheelendra put_pages_vram(obj); 171871d812aSRob Clark 172c8afe684SRob Clark msm_obj->pages = NULL; 173c8afe684SRob Clark } 174c8afe684SRob Clark } 175c8afe684SRob Clark 17605b84911SRob Clark struct page **msm_gem_get_pages(struct drm_gem_object *obj) 17705b84911SRob Clark { 1780e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 17905b84911SRob Clark struct page **p; 1800e08270aSSushmita Susheelendra 1810e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 1820e08270aSSushmita Susheelendra 1830e08270aSSushmita Susheelendra if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 1840e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 1850e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 1860e08270aSSushmita Susheelendra } 1870e08270aSSushmita Susheelendra 18805b84911SRob Clark p = get_pages(obj); 1890e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 19005b84911SRob Clark return p; 19105b84911SRob Clark } 19205b84911SRob Clark 19305b84911SRob Clark void msm_gem_put_pages(struct drm_gem_object *obj) 19405b84911SRob Clark { 19505b84911SRob Clark /* when we start tracking the pin count, then do something here */ 19605b84911SRob Clark } 19705b84911SRob Clark 198c8afe684SRob Clark int msm_gem_mmap_obj(struct drm_gem_object *obj, 199c8afe684SRob Clark struct vm_area_struct *vma) 200c8afe684SRob Clark { 201c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 202c8afe684SRob Clark 203c8afe684SRob Clark vma->vm_flags &= ~VM_PFNMAP; 204c8afe684SRob Clark vma->vm_flags |= VM_MIXEDMAP; 205c8afe684SRob Clark 206c8afe684SRob Clark if (msm_obj->flags & MSM_BO_WC) { 207c8afe684SRob Clark vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); 208c8afe684SRob Clark } else if (msm_obj->flags & MSM_BO_UNCACHED) { 209c8afe684SRob Clark vma->vm_page_prot = pgprot_noncached(vm_get_page_prot(vma->vm_flags)); 210c8afe684SRob Clark } else { 211c8afe684SRob Clark /* 212c8afe684SRob Clark * Shunt off cached objs to shmem file so they have their own 213c8afe684SRob Clark * address_space (so unmap_mapping_range does what we want, 214c8afe684SRob Clark * in particular in the case of mmap'd dmabufs) 215c8afe684SRob Clark */ 216c8afe684SRob Clark fput(vma->vm_file); 217c8afe684SRob Clark get_file(obj->filp); 218c8afe684SRob Clark vma->vm_pgoff = 0; 219c8afe684SRob Clark vma->vm_file = obj->filp; 220c8afe684SRob Clark 221c8afe684SRob Clark vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); 222c8afe684SRob Clark } 223c8afe684SRob Clark 224c8afe684SRob Clark return 0; 225c8afe684SRob Clark } 226c8afe684SRob Clark 227c8afe684SRob Clark int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma) 228c8afe684SRob Clark { 229c8afe684SRob Clark int ret; 230c8afe684SRob Clark 231c8afe684SRob Clark ret = drm_gem_mmap(filp, vma); 232c8afe684SRob Clark if (ret) { 233c8afe684SRob Clark DBG("mmap failed: %d", ret); 234c8afe684SRob Clark return ret; 235c8afe684SRob Clark } 236c8afe684SRob Clark 237c8afe684SRob Clark return msm_gem_mmap_obj(vma->vm_private_data, vma); 238c8afe684SRob Clark } 239c8afe684SRob Clark 240a5f74ec7SSouptick Joarder vm_fault_t msm_gem_fault(struct vm_fault *vmf) 241c8afe684SRob Clark { 24211bac800SDave Jiang struct vm_area_struct *vma = vmf->vma; 243c8afe684SRob Clark struct drm_gem_object *obj = vma->vm_private_data; 2440e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 245c8afe684SRob Clark struct page **pages; 246c8afe684SRob Clark unsigned long pfn; 247c8afe684SRob Clark pgoff_t pgoff; 248a5f74ec7SSouptick Joarder int err; 249a5f74ec7SSouptick Joarder vm_fault_t ret; 250c8afe684SRob Clark 2510e08270aSSushmita Susheelendra /* 2520e08270aSSushmita Susheelendra * vm_ops.open/drm_gem_mmap_obj and close get and put 2530e08270aSSushmita Susheelendra * a reference on obj. So, we dont need to hold one here. 254d78d383aSRob Clark */ 255a5f74ec7SSouptick Joarder err = mutex_lock_interruptible(&msm_obj->lock); 256a5f74ec7SSouptick Joarder if (err) { 257a5f74ec7SSouptick Joarder ret = VM_FAULT_NOPAGE; 258c8afe684SRob Clark goto out; 259a5f74ec7SSouptick Joarder } 260c8afe684SRob Clark 2610e08270aSSushmita Susheelendra if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 2620e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 2630e08270aSSushmita Susheelendra return VM_FAULT_SIGBUS; 2640e08270aSSushmita Susheelendra } 2650e08270aSSushmita Susheelendra 266c8afe684SRob Clark /* make sure we have pages attached now */ 267c8afe684SRob Clark pages = get_pages(obj); 268c8afe684SRob Clark if (IS_ERR(pages)) { 269a5f74ec7SSouptick Joarder ret = vmf_error(PTR_ERR(pages)); 270c8afe684SRob Clark goto out_unlock; 271c8afe684SRob Clark } 272c8afe684SRob Clark 273c8afe684SRob Clark /* We don't use vmf->pgoff since that has the fake offset: */ 2741a29d85eSJan Kara pgoff = (vmf->address - vma->vm_start) >> PAGE_SHIFT; 275c8afe684SRob Clark 276871d812aSRob Clark pfn = page_to_pfn(pages[pgoff]); 277c8afe684SRob Clark 2781a29d85eSJan Kara VERB("Inserting %p pfn %lx, pa %lx", (void *)vmf->address, 279c8afe684SRob Clark pfn, pfn << PAGE_SHIFT); 280c8afe684SRob Clark 281a5f74ec7SSouptick Joarder ret = vmf_insert_mixed(vma, vmf->address, __pfn_to_pfn_t(pfn, PFN_DEV)); 282c8afe684SRob Clark out_unlock: 2830e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 284c8afe684SRob Clark out: 285a5f74ec7SSouptick Joarder return ret; 286c8afe684SRob Clark } 287c8afe684SRob Clark 288c8afe684SRob Clark /** get mmap offset */ 289c8afe684SRob Clark static uint64_t mmap_offset(struct drm_gem_object *obj) 290c8afe684SRob Clark { 291c8afe684SRob Clark struct drm_device *dev = obj->dev; 2920e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 293c8afe684SRob Clark int ret; 294c8afe684SRob Clark 2950e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 296c8afe684SRob Clark 297c8afe684SRob Clark /* Make it mmapable */ 298c8afe684SRob Clark ret = drm_gem_create_mmap_offset(obj); 299c8afe684SRob Clark 300c8afe684SRob Clark if (ret) { 3016a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not allocate mmap offset\n"); 302c8afe684SRob Clark return 0; 303c8afe684SRob Clark } 304c8afe684SRob Clark 305c8afe684SRob Clark return drm_vma_node_offset_addr(&obj->vma_node); 306c8afe684SRob Clark } 307c8afe684SRob Clark 308c8afe684SRob Clark uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj) 309c8afe684SRob Clark { 310c8afe684SRob Clark uint64_t offset; 3110e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 3120e08270aSSushmita Susheelendra 3130e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 314c8afe684SRob Clark offset = mmap_offset(obj); 3150e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 316c8afe684SRob Clark return offset; 317c8afe684SRob Clark } 318c8afe684SRob Clark 3194b85f7f5SRob Clark static struct msm_gem_vma *add_vma(struct drm_gem_object *obj, 3204b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3214b85f7f5SRob Clark { 3224b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3234b85f7f5SRob Clark struct msm_gem_vma *vma; 3244b85f7f5SRob Clark 3250e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 3260e08270aSSushmita Susheelendra 3274b85f7f5SRob Clark vma = kzalloc(sizeof(*vma), GFP_KERNEL); 3284b85f7f5SRob Clark if (!vma) 3294b85f7f5SRob Clark return ERR_PTR(-ENOMEM); 3304b85f7f5SRob Clark 3314b85f7f5SRob Clark vma->aspace = aspace; 3324b85f7f5SRob Clark 3334b85f7f5SRob Clark list_add_tail(&vma->list, &msm_obj->vmas); 3344b85f7f5SRob Clark 3354b85f7f5SRob Clark return vma; 3364b85f7f5SRob Clark } 3374b85f7f5SRob Clark 3384b85f7f5SRob Clark static struct msm_gem_vma *lookup_vma(struct drm_gem_object *obj, 3394b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3404b85f7f5SRob Clark { 3414b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3424b85f7f5SRob Clark struct msm_gem_vma *vma; 3434b85f7f5SRob Clark 3440e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 3454b85f7f5SRob Clark 3464b85f7f5SRob Clark list_for_each_entry(vma, &msm_obj->vmas, list) { 3474b85f7f5SRob Clark if (vma->aspace == aspace) 3484b85f7f5SRob Clark return vma; 3494b85f7f5SRob Clark } 3504b85f7f5SRob Clark 3514b85f7f5SRob Clark return NULL; 3524b85f7f5SRob Clark } 3534b85f7f5SRob Clark 3544b85f7f5SRob Clark static void del_vma(struct msm_gem_vma *vma) 3554b85f7f5SRob Clark { 3564b85f7f5SRob Clark if (!vma) 3574b85f7f5SRob Clark return; 3584b85f7f5SRob Clark 3594b85f7f5SRob Clark list_del(&vma->list); 3604b85f7f5SRob Clark kfree(vma); 3614b85f7f5SRob Clark } 3624b85f7f5SRob Clark 3630e08270aSSushmita Susheelendra /* Called with msm_obj->lock locked */ 3644fe5f65eSRob Clark static void 3654fe5f65eSRob Clark put_iova(struct drm_gem_object *obj) 3664fe5f65eSRob Clark { 3674fe5f65eSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3684b85f7f5SRob Clark struct msm_gem_vma *vma, *tmp; 3694fe5f65eSRob Clark 3700e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 3714fe5f65eSRob Clark 3724b85f7f5SRob Clark list_for_each_entry_safe(vma, tmp, &msm_obj->vmas, list) { 373d67f1b6dSBrian Masney if (vma->aspace) { 3747ad0e8cfSJordan Crouse msm_gem_purge_vma(vma->aspace, vma); 3757ad0e8cfSJordan Crouse msm_gem_close_vma(vma->aspace, vma); 376d67f1b6dSBrian Masney } 3774b85f7f5SRob Clark del_vma(vma); 3784fe5f65eSRob Clark } 3794fe5f65eSRob Clark } 3804fe5f65eSRob Clark 381c0ee9794SJordan Crouse static int msm_gem_get_iova_locked(struct drm_gem_object *obj, 382d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova, 383d3b8877eSJonathan Marek u64 range_start, u64 range_end) 384c8afe684SRob Clark { 385c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3864b85f7f5SRob Clark struct msm_gem_vma *vma; 387c8afe684SRob Clark int ret = 0; 388c8afe684SRob Clark 389c0ee9794SJordan Crouse WARN_ON(!mutex_is_locked(&msm_obj->lock)); 390cb1e3818SRob Clark 3914b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 392871d812aSRob Clark 3934b85f7f5SRob Clark if (!vma) { 3944b85f7f5SRob Clark vma = add_vma(obj, aspace); 395c0ee9794SJordan Crouse if (IS_ERR(vma)) 396c0ee9794SJordan Crouse return PTR_ERR(vma); 3974b85f7f5SRob Clark 398d3b8877eSJonathan Marek ret = msm_gem_init_vma(aspace, vma, obj->size >> PAGE_SHIFT, 399d3b8877eSJonathan Marek range_start, range_end); 400c0ee9794SJordan Crouse if (ret) { 401c0ee9794SJordan Crouse del_vma(vma); 402c0ee9794SJordan Crouse return ret; 403c8afe684SRob Clark } 4044b85f7f5SRob Clark } 4054b85f7f5SRob Clark 4064b85f7f5SRob Clark *iova = vma->iova; 4074b85f7f5SRob Clark return 0; 408c0ee9794SJordan Crouse } 4094b85f7f5SRob Clark 410c0ee9794SJordan Crouse static int msm_gem_pin_iova(struct drm_gem_object *obj, 411c0ee9794SJordan Crouse struct msm_gem_address_space *aspace) 412c0ee9794SJordan Crouse { 413c0ee9794SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 414c0ee9794SJordan Crouse struct msm_gem_vma *vma; 415c0ee9794SJordan Crouse struct page **pages; 416bbc2cd07SRob Clark int prot = IOMMU_READ; 417bbc2cd07SRob Clark 418bbc2cd07SRob Clark if (!(msm_obj->flags & MSM_BO_GPU_READONLY)) 419bbc2cd07SRob Clark prot |= IOMMU_WRITE; 420c0ee9794SJordan Crouse 4210b462d7aSJonathan Marek if (msm_obj->flags & MSM_BO_MAP_PRIV) 4220b462d7aSJonathan Marek prot |= IOMMU_PRIV; 4230b462d7aSJonathan Marek 424c0ee9794SJordan Crouse WARN_ON(!mutex_is_locked(&msm_obj->lock)); 425c0ee9794SJordan Crouse 426c0ee9794SJordan Crouse if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) 427c0ee9794SJordan Crouse return -EBUSY; 428c0ee9794SJordan Crouse 429c0ee9794SJordan Crouse vma = lookup_vma(obj, aspace); 430c0ee9794SJordan Crouse if (WARN_ON(!vma)) 431c0ee9794SJordan Crouse return -EINVAL; 432c0ee9794SJordan Crouse 433c0ee9794SJordan Crouse pages = get_pages(obj); 434c0ee9794SJordan Crouse if (IS_ERR(pages)) 435c0ee9794SJordan Crouse return PTR_ERR(pages); 436c0ee9794SJordan Crouse 437bbc2cd07SRob Clark return msm_gem_map_vma(aspace, vma, prot, 438bbc2cd07SRob Clark msm_obj->sgt, obj->size >> PAGE_SHIFT); 439c0ee9794SJordan Crouse } 440c0ee9794SJordan Crouse 441d3b8877eSJonathan Marek /* 442d3b8877eSJonathan Marek * get iova and pin it. Should have a matching put 443d3b8877eSJonathan Marek * limits iova to specified range (in pages) 444d3b8877eSJonathan Marek */ 445d3b8877eSJonathan Marek int msm_gem_get_and_pin_iova_range(struct drm_gem_object *obj, 446d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova, 447d3b8877eSJonathan Marek u64 range_start, u64 range_end) 448c0ee9794SJordan Crouse { 449c0ee9794SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 450c0ee9794SJordan Crouse u64 local; 451c0ee9794SJordan Crouse int ret; 452c0ee9794SJordan Crouse 453c0ee9794SJordan Crouse mutex_lock(&msm_obj->lock); 454c0ee9794SJordan Crouse 455d3b8877eSJonathan Marek ret = msm_gem_get_iova_locked(obj, aspace, &local, 456d3b8877eSJonathan Marek range_start, range_end); 457c0ee9794SJordan Crouse 458c0ee9794SJordan Crouse if (!ret) 459c0ee9794SJordan Crouse ret = msm_gem_pin_iova(obj, aspace); 460c0ee9794SJordan Crouse 461c0ee9794SJordan Crouse if (!ret) 462c0ee9794SJordan Crouse *iova = local; 463c0ee9794SJordan Crouse 4640e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 465c8afe684SRob Clark return ret; 466c8afe684SRob Clark } 467c8afe684SRob Clark 468d3b8877eSJonathan Marek /* get iova and pin it. Should have a matching put */ 469d3b8877eSJonathan Marek int msm_gem_get_and_pin_iova(struct drm_gem_object *obj, 470d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova) 471d3b8877eSJonathan Marek { 472d3b8877eSJonathan Marek return msm_gem_get_and_pin_iova_range(obj, aspace, iova, 0, U64_MAX); 473d3b8877eSJonathan Marek } 474d3b8877eSJonathan Marek 4757ad0e8cfSJordan Crouse /* 4767ad0e8cfSJordan Crouse * Get an iova but don't pin it. Doesn't need a put because iovas are currently 4777ad0e8cfSJordan Crouse * valid for the life of the object 4787ad0e8cfSJordan Crouse */ 4799fe041f6SJordan Crouse int msm_gem_get_iova(struct drm_gem_object *obj, 4809fe041f6SJordan Crouse struct msm_gem_address_space *aspace, uint64_t *iova) 4819fe041f6SJordan Crouse { 4829fe041f6SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 4839fe041f6SJordan Crouse int ret; 4849fe041f6SJordan Crouse 4859fe041f6SJordan Crouse mutex_lock(&msm_obj->lock); 486d3b8877eSJonathan Marek ret = msm_gem_get_iova_locked(obj, aspace, iova, 0, U64_MAX); 4879fe041f6SJordan Crouse mutex_unlock(&msm_obj->lock); 4889fe041f6SJordan Crouse 4899fe041f6SJordan Crouse return ret; 4909fe041f6SJordan Crouse } 4919fe041f6SJordan Crouse 4922638d90aSRob Clark /* get iova without taking a reference, used in places where you have 4939fe041f6SJordan Crouse * already done a 'msm_gem_get_and_pin_iova' or 'msm_gem_get_iova' 4942638d90aSRob Clark */ 4958bdcd949SRob Clark uint64_t msm_gem_iova(struct drm_gem_object *obj, 4968bdcd949SRob Clark struct msm_gem_address_space *aspace) 4972638d90aSRob Clark { 4980e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 4994b85f7f5SRob Clark struct msm_gem_vma *vma; 5004b85f7f5SRob Clark 5010e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 5024b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 5030e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5044b85f7f5SRob Clark WARN_ON(!vma); 5054b85f7f5SRob Clark 5064b85f7f5SRob Clark return vma ? vma->iova : 0; 5072638d90aSRob Clark } 5082638d90aSRob Clark 5097ad0e8cfSJordan Crouse /* 5107ad0e8cfSJordan Crouse * Unpin a iova by updating the reference counts. The memory isn't actually 5117ad0e8cfSJordan Crouse * purged until something else (shrinker, mm_notifier, destroy, etc) decides 5127ad0e8cfSJordan Crouse * to get rid of it 5137ad0e8cfSJordan Crouse */ 5147ad0e8cfSJordan Crouse void msm_gem_unpin_iova(struct drm_gem_object *obj, 5158bdcd949SRob Clark struct msm_gem_address_space *aspace) 516c8afe684SRob Clark { 5177ad0e8cfSJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 5187ad0e8cfSJordan Crouse struct msm_gem_vma *vma; 5197ad0e8cfSJordan Crouse 5207ad0e8cfSJordan Crouse mutex_lock(&msm_obj->lock); 5217ad0e8cfSJordan Crouse vma = lookup_vma(obj, aspace); 5227ad0e8cfSJordan Crouse 5237ad0e8cfSJordan Crouse if (!WARN_ON(!vma)) 5247ad0e8cfSJordan Crouse msm_gem_unmap_vma(aspace, vma); 5257ad0e8cfSJordan Crouse 5267ad0e8cfSJordan Crouse mutex_unlock(&msm_obj->lock); 527c8afe684SRob Clark } 528c8afe684SRob Clark 529c8afe684SRob Clark int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 530c8afe684SRob Clark struct drm_mode_create_dumb *args) 531c8afe684SRob Clark { 532c8afe684SRob Clark args->pitch = align_pitch(args->width, args->bpp); 533c8afe684SRob Clark args->size = PAGE_ALIGN(args->pitch * args->height); 534c8afe684SRob Clark return msm_gem_new_handle(dev, file, args->size, 5350815d774SJordan Crouse MSM_BO_SCANOUT | MSM_BO_WC, &args->handle, "dumb"); 536c8afe684SRob Clark } 537c8afe684SRob Clark 538c8afe684SRob Clark int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 539c8afe684SRob Clark uint32_t handle, uint64_t *offset) 540c8afe684SRob Clark { 541c8afe684SRob Clark struct drm_gem_object *obj; 542c8afe684SRob Clark int ret = 0; 543c8afe684SRob Clark 544c8afe684SRob Clark /* GEM does all our handle to object mapping */ 545a8ad0bd8SChris Wilson obj = drm_gem_object_lookup(file, handle); 546c8afe684SRob Clark if (obj == NULL) { 547c8afe684SRob Clark ret = -ENOENT; 548c8afe684SRob Clark goto fail; 549c8afe684SRob Clark } 550c8afe684SRob Clark 551c8afe684SRob Clark *offset = msm_gem_mmap_offset(obj); 552c8afe684SRob Clark 553f7d33950SEmil Velikov drm_gem_object_put(obj); 554c8afe684SRob Clark 555c8afe684SRob Clark fail: 556c8afe684SRob Clark return ret; 557c8afe684SRob Clark } 558c8afe684SRob Clark 559fad33f4bSRob Clark static void *get_vaddr(struct drm_gem_object *obj, unsigned madv) 560c8afe684SRob Clark { 5610e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 5620e08270aSSushmita Susheelendra int ret = 0; 5630e08270aSSushmita Susheelendra 5648b6b7d84SDaniel Vetter if (obj->import_attach) 5658b6b7d84SDaniel Vetter return ERR_PTR(-ENODEV); 5668b6b7d84SDaniel Vetter 5670e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 5680e08270aSSushmita Susheelendra 569fad33f4bSRob Clark if (WARN_ON(msm_obj->madv > madv)) { 5706a41da17SMamta Shukla DRM_DEV_ERROR(obj->dev->dev, "Invalid madv state: %u vs %u\n", 571fad33f4bSRob Clark msm_obj->madv, madv); 5720e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5730e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 574c8afe684SRob Clark } 575c8afe684SRob Clark 5760e08270aSSushmita Susheelendra /* increment vmap_count *before* vmap() call, so shrinker can 5770e08270aSSushmita Susheelendra * check vmap_count (is_vunmapable()) outside of msm_obj->lock. 5780e08270aSSushmita Susheelendra * This guarantees that we won't try to msm_gem_vunmap() this 5790e08270aSSushmita Susheelendra * same object from within the vmap() call (while we already 5800e08270aSSushmita Susheelendra * hold msm_obj->lock) 5810e08270aSSushmita Susheelendra */ 5820e08270aSSushmita Susheelendra msm_obj->vmap_count++; 5830e08270aSSushmita Susheelendra 5840e08270aSSushmita Susheelendra if (!msm_obj->vaddr) { 5850e08270aSSushmita Susheelendra struct page **pages = get_pages(obj); 5860e08270aSSushmita Susheelendra if (IS_ERR(pages)) { 5870e08270aSSushmita Susheelendra ret = PTR_ERR(pages); 5880e08270aSSushmita Susheelendra goto fail; 5890e08270aSSushmita Susheelendra } 5900e08270aSSushmita Susheelendra msm_obj->vaddr = vmap(pages, obj->size >> PAGE_SHIFT, 5910e08270aSSushmita Susheelendra VM_MAP, pgprot_writecombine(PAGE_KERNEL)); 5920e08270aSSushmita Susheelendra if (msm_obj->vaddr == NULL) { 5930e08270aSSushmita Susheelendra ret = -ENOMEM; 5940e08270aSSushmita Susheelendra goto fail; 5950e08270aSSushmita Susheelendra } 5960e08270aSSushmita Susheelendra } 5970e08270aSSushmita Susheelendra 5980e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5990e08270aSSushmita Susheelendra return msm_obj->vaddr; 6000e08270aSSushmita Susheelendra 6010e08270aSSushmita Susheelendra fail: 602e1e9db2cSRob Clark msm_obj->vmap_count--; 6030e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 6040e08270aSSushmita Susheelendra return ERR_PTR(ret); 60518f23049SRob Clark } 60618f23049SRob Clark 607fad33f4bSRob Clark void *msm_gem_get_vaddr(struct drm_gem_object *obj) 608fad33f4bSRob Clark { 609fad33f4bSRob Clark return get_vaddr(obj, MSM_MADV_WILLNEED); 610fad33f4bSRob Clark } 611fad33f4bSRob Clark 612fad33f4bSRob Clark /* 613fad33f4bSRob Clark * Don't use this! It is for the very special case of dumping 614fad33f4bSRob Clark * submits from GPU hangs or faults, were the bo may already 615fad33f4bSRob Clark * be MSM_MADV_DONTNEED, but we know the buffer is still on the 616fad33f4bSRob Clark * active list. 617fad33f4bSRob Clark */ 618fad33f4bSRob Clark void *msm_gem_get_vaddr_active(struct drm_gem_object *obj) 619fad33f4bSRob Clark { 620fad33f4bSRob Clark return get_vaddr(obj, __MSM_MADV_PURGED); 621fad33f4bSRob Clark } 622fad33f4bSRob Clark 62318f23049SRob Clark void msm_gem_put_vaddr(struct drm_gem_object *obj) 62418f23049SRob Clark { 6250e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 6260e08270aSSushmita Susheelendra 6270e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 6280e08270aSSushmita Susheelendra WARN_ON(msm_obj->vmap_count < 1); 6290e08270aSSushmita Susheelendra msm_obj->vmap_count--; 6300e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 63118f23049SRob Clark } 63218f23049SRob Clark 6334cd33c48SRob Clark /* Update madvise status, returns true if not purged, else 6344cd33c48SRob Clark * false or -errno. 6354cd33c48SRob Clark */ 6364cd33c48SRob Clark int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv) 6374cd33c48SRob Clark { 6384cd33c48SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 6394cd33c48SRob Clark 6400e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 6410e08270aSSushmita Susheelendra 6424cd33c48SRob Clark WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex)); 6434cd33c48SRob Clark 6444cd33c48SRob Clark if (msm_obj->madv != __MSM_MADV_PURGED) 6454cd33c48SRob Clark msm_obj->madv = madv; 6464cd33c48SRob Clark 6470e08270aSSushmita Susheelendra madv = msm_obj->madv; 6480e08270aSSushmita Susheelendra 6490e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 6500e08270aSSushmita Susheelendra 6510e08270aSSushmita Susheelendra return (madv != __MSM_MADV_PURGED); 6524cd33c48SRob Clark } 6534cd33c48SRob Clark 6540e08270aSSushmita Susheelendra void msm_gem_purge(struct drm_gem_object *obj, enum msm_gem_lock subclass) 65568209390SRob Clark { 65668209390SRob Clark struct drm_device *dev = obj->dev; 65768209390SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 65868209390SRob Clark 65968209390SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 66068209390SRob Clark WARN_ON(!is_purgeable(msm_obj)); 66168209390SRob Clark WARN_ON(obj->import_attach); 66268209390SRob Clark 6630e08270aSSushmita Susheelendra mutex_lock_nested(&msm_obj->lock, subclass); 6640e08270aSSushmita Susheelendra 66568209390SRob Clark put_iova(obj); 66668209390SRob Clark 6670e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 66868209390SRob Clark 66968209390SRob Clark put_pages(obj); 67068209390SRob Clark 67168209390SRob Clark msm_obj->madv = __MSM_MADV_PURGED; 67268209390SRob Clark 67368209390SRob Clark drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); 67468209390SRob Clark drm_gem_free_mmap_offset(obj); 67568209390SRob Clark 67668209390SRob Clark /* Our goal here is to return as much of the memory as 67768209390SRob Clark * is possible back to the system as we are called from OOM. 67868209390SRob Clark * To do this we must instruct the shmfs to drop all of its 67968209390SRob Clark * backing pages, *now*. 68068209390SRob Clark */ 68168209390SRob Clark shmem_truncate_range(file_inode(obj->filp), 0, (loff_t)-1); 68268209390SRob Clark 68368209390SRob Clark invalidate_mapping_pages(file_inode(obj->filp)->i_mapping, 68468209390SRob Clark 0, (loff_t)-1); 6850e08270aSSushmita Susheelendra 6860e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 68768209390SRob Clark } 68868209390SRob Clark 6890e08270aSSushmita Susheelendra static void msm_gem_vunmap_locked(struct drm_gem_object *obj) 690e1e9db2cSRob Clark { 691e1e9db2cSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 692e1e9db2cSRob Clark 6930e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 6940e08270aSSushmita Susheelendra 695e1e9db2cSRob Clark if (!msm_obj->vaddr || WARN_ON(!is_vunmapable(msm_obj))) 696e1e9db2cSRob Clark return; 697e1e9db2cSRob Clark 698e1e9db2cSRob Clark vunmap(msm_obj->vaddr); 699e1e9db2cSRob Clark msm_obj->vaddr = NULL; 700e1e9db2cSRob Clark } 701e1e9db2cSRob Clark 7020e08270aSSushmita Susheelendra void msm_gem_vunmap(struct drm_gem_object *obj, enum msm_gem_lock subclass) 7030e08270aSSushmita Susheelendra { 7040e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 7050e08270aSSushmita Susheelendra 7060e08270aSSushmita Susheelendra mutex_lock_nested(&msm_obj->lock, subclass); 7070e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 7080e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 7090e08270aSSushmita Susheelendra } 7100e08270aSSushmita Susheelendra 711b6295f9aSRob Clark /* must be called before _move_to_active().. */ 712b6295f9aSRob Clark int msm_gem_sync_object(struct drm_gem_object *obj, 713b6295f9aSRob Clark struct msm_fence_context *fctx, bool exclusive) 714b6295f9aSRob Clark { 71552791eeeSChristian König struct dma_resv_list *fobj; 716f54d1867SChris Wilson struct dma_fence *fence; 717b6295f9aSRob Clark int i, ret; 718b6295f9aSRob Clark 71952791eeeSChristian König fobj = dma_resv_get_list(obj->resv); 720b6295f9aSRob Clark if (!fobj || (fobj->shared_count == 0)) { 72152791eeeSChristian König fence = dma_resv_get_excl(obj->resv); 722b6295f9aSRob Clark /* don't need to wait on our own fences, since ring is fifo */ 723b6295f9aSRob Clark if (fence && (fence->context != fctx->context)) { 724f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 725b6295f9aSRob Clark if (ret) 726b6295f9aSRob Clark return ret; 727b6295f9aSRob Clark } 728b6295f9aSRob Clark } 729b6295f9aSRob Clark 730b6295f9aSRob Clark if (!exclusive || !fobj) 731b6295f9aSRob Clark return 0; 732b6295f9aSRob Clark 733b6295f9aSRob Clark for (i = 0; i < fobj->shared_count; i++) { 734b6295f9aSRob Clark fence = rcu_dereference_protected(fobj->shared[i], 73552791eeeSChristian König dma_resv_held(obj->resv)); 736b6295f9aSRob Clark if (fence->context != fctx->context) { 737f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 738b6295f9aSRob Clark if (ret) 739b6295f9aSRob Clark return ret; 740b6295f9aSRob Clark } 741b6295f9aSRob Clark } 742b6295f9aSRob Clark 743b6295f9aSRob Clark return 0; 744b6295f9aSRob Clark } 745b6295f9aSRob Clark 7467198e6b0SRob Clark void msm_gem_move_to_active(struct drm_gem_object *obj, 747f54d1867SChris Wilson struct msm_gpu *gpu, bool exclusive, struct dma_fence *fence) 7487198e6b0SRob Clark { 7497198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 7504cd33c48SRob Clark WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED); 7517198e6b0SRob Clark msm_obj->gpu = gpu; 752b6295f9aSRob Clark if (exclusive) 75352791eeeSChristian König dma_resv_add_excl_fence(obj->resv, fence); 754bf6811f3SRob Clark else 75552791eeeSChristian König dma_resv_add_shared_fence(obj->resv, fence); 7567198e6b0SRob Clark list_del_init(&msm_obj->mm_list); 7577198e6b0SRob Clark list_add_tail(&msm_obj->mm_list, &gpu->active_list); 7587198e6b0SRob Clark } 7597198e6b0SRob Clark 7607198e6b0SRob Clark void msm_gem_move_to_inactive(struct drm_gem_object *obj) 7617198e6b0SRob Clark { 7627198e6b0SRob Clark struct drm_device *dev = obj->dev; 7637198e6b0SRob Clark struct msm_drm_private *priv = dev->dev_private; 7647198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 7657198e6b0SRob Clark 7667198e6b0SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 7677198e6b0SRob Clark 7687198e6b0SRob Clark msm_obj->gpu = NULL; 7697198e6b0SRob Clark list_del_init(&msm_obj->mm_list); 7707198e6b0SRob Clark list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 7717198e6b0SRob Clark } 7727198e6b0SRob Clark 773ba00c3f2SRob Clark int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout) 774ba00c3f2SRob Clark { 775b6295f9aSRob Clark bool write = !!(op & MSM_PREP_WRITE); 776f755e227SChris Wilson unsigned long remain = 777f755e227SChris Wilson op & MSM_PREP_NOSYNC ? 0 : timeout_to_jiffies(timeout); 778f755e227SChris Wilson long ret; 779b6295f9aSRob Clark 78052791eeeSChristian König ret = dma_resv_wait_timeout_rcu(obj->resv, write, 781f755e227SChris Wilson true, remain); 782f755e227SChris Wilson if (ret == 0) 783f755e227SChris Wilson return remain == 0 ? -EBUSY : -ETIMEDOUT; 784f755e227SChris Wilson else if (ret < 0) 785f755e227SChris Wilson return ret; 786ba00c3f2SRob Clark 7877198e6b0SRob Clark /* TODO cache maintenance */ 7887198e6b0SRob Clark 789b6295f9aSRob Clark return 0; 7907198e6b0SRob Clark } 7917198e6b0SRob Clark 7927198e6b0SRob Clark int msm_gem_cpu_fini(struct drm_gem_object *obj) 7937198e6b0SRob Clark { 7947198e6b0SRob Clark /* TODO cache maintenance */ 795c8afe684SRob Clark return 0; 796c8afe684SRob Clark } 797c8afe684SRob Clark 798c8afe684SRob Clark #ifdef CONFIG_DEBUG_FS 799f54d1867SChris Wilson static void describe_fence(struct dma_fence *fence, const char *type, 800b6295f9aSRob Clark struct seq_file *m) 801b6295f9aSRob Clark { 802f54d1867SChris Wilson if (!dma_fence_is_signaled(fence)) 803a3115621SDave Airlie seq_printf(m, "\t%9s: %s %s seq %llu\n", type, 804b6295f9aSRob Clark fence->ops->get_driver_name(fence), 805b6295f9aSRob Clark fence->ops->get_timeline_name(fence), 806b6295f9aSRob Clark fence->seqno); 807b6295f9aSRob Clark } 808b6295f9aSRob Clark 809c8afe684SRob Clark void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m) 810c8afe684SRob Clark { 811c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 81252791eeeSChristian König struct dma_resv *robj = obj->resv; 81352791eeeSChristian König struct dma_resv_list *fobj; 814f54d1867SChris Wilson struct dma_fence *fence; 8154b85f7f5SRob Clark struct msm_gem_vma *vma; 816c8afe684SRob Clark uint64_t off = drm_vma_node_start(&obj->vma_node); 8174cd33c48SRob Clark const char *madv; 818c8afe684SRob Clark 8190e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 820b6295f9aSRob Clark 8214cd33c48SRob Clark switch (msm_obj->madv) { 8224cd33c48SRob Clark case __MSM_MADV_PURGED: 8234cd33c48SRob Clark madv = " purged"; 8244cd33c48SRob Clark break; 8254cd33c48SRob Clark case MSM_MADV_DONTNEED: 8264cd33c48SRob Clark madv = " purgeable"; 8274cd33c48SRob Clark break; 8284cd33c48SRob Clark case MSM_MADV_WILLNEED: 8294cd33c48SRob Clark default: 8304cd33c48SRob Clark madv = ""; 8314cd33c48SRob Clark break; 8324cd33c48SRob Clark } 8334cd33c48SRob Clark 834575f0485SJordan Crouse seq_printf(m, "%08x: %c %2d (%2d) %08llx %p", 8357198e6b0SRob Clark msm_obj->flags, is_active(msm_obj) ? 'A' : 'I', 8362c935bc5SPeter Zijlstra obj->name, kref_read(&obj->refcount), 837667ce33eSRob Clark off, msm_obj->vaddr); 838667ce33eSRob Clark 8390815d774SJordan Crouse seq_printf(m, " %08zu %9s %-32s\n", obj->size, madv, msm_obj->name); 840667ce33eSRob Clark 841575f0485SJordan Crouse if (!list_empty(&msm_obj->vmas)) { 842575f0485SJordan Crouse 843575f0485SJordan Crouse seq_puts(m, " vmas:"); 844575f0485SJordan Crouse 84525faf2f2SRob Clark list_for_each_entry(vma, &msm_obj->vmas, list) { 84625faf2f2SRob Clark const char *name, *comm; 84725faf2f2SRob Clark if (vma->aspace) { 84825faf2f2SRob Clark struct msm_gem_address_space *aspace = vma->aspace; 84925faf2f2SRob Clark struct task_struct *task = 85025faf2f2SRob Clark get_pid_task(aspace->pid, PIDTYPE_PID); 85125faf2f2SRob Clark if (task) { 85225faf2f2SRob Clark comm = kstrdup(task->comm, GFP_KERNEL); 85325faf2f2SRob Clark } else { 85425faf2f2SRob Clark comm = NULL; 85525faf2f2SRob Clark } 85625faf2f2SRob Clark name = aspace->name; 85725faf2f2SRob Clark } else { 85825faf2f2SRob Clark name = comm = NULL; 85925faf2f2SRob Clark } 86025faf2f2SRob Clark seq_printf(m, " [%s%s%s: aspace=%p, %08llx,%s,inuse=%d]", 86125faf2f2SRob Clark name, comm ? ":" : "", comm ? comm : "", 86225faf2f2SRob Clark vma->aspace, vma->iova, 86325faf2f2SRob Clark vma->mapped ? "mapped" : "unmapped", 8647ad0e8cfSJordan Crouse vma->inuse); 86525faf2f2SRob Clark kfree(comm); 86625faf2f2SRob Clark } 867575f0485SJordan Crouse 868575f0485SJordan Crouse seq_puts(m, "\n"); 869575f0485SJordan Crouse } 870b6295f9aSRob Clark 871b6295f9aSRob Clark rcu_read_lock(); 872b6295f9aSRob Clark fobj = rcu_dereference(robj->fence); 873b6295f9aSRob Clark if (fobj) { 874b6295f9aSRob Clark unsigned int i, shared_count = fobj->shared_count; 875b6295f9aSRob Clark 876b6295f9aSRob Clark for (i = 0; i < shared_count; i++) { 877b6295f9aSRob Clark fence = rcu_dereference(fobj->shared[i]); 878b6295f9aSRob Clark describe_fence(fence, "Shared", m); 879b6295f9aSRob Clark } 880b6295f9aSRob Clark } 881b6295f9aSRob Clark 882b6295f9aSRob Clark fence = rcu_dereference(robj->fence_excl); 883b6295f9aSRob Clark if (fence) 884b6295f9aSRob Clark describe_fence(fence, "Exclusive", m); 885b6295f9aSRob Clark rcu_read_unlock(); 8860e08270aSSushmita Susheelendra 8870e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 888c8afe684SRob Clark } 889c8afe684SRob Clark 890c8afe684SRob Clark void msm_gem_describe_objects(struct list_head *list, struct seq_file *m) 891c8afe684SRob Clark { 892c8afe684SRob Clark struct msm_gem_object *msm_obj; 893c8afe684SRob Clark int count = 0; 894c8afe684SRob Clark size_t size = 0; 895c8afe684SRob Clark 8960815d774SJordan Crouse seq_puts(m, " flags id ref offset kaddr size madv name\n"); 897c8afe684SRob Clark list_for_each_entry(msm_obj, list, mm_list) { 898c8afe684SRob Clark struct drm_gem_object *obj = &msm_obj->base; 899575f0485SJordan Crouse seq_puts(m, " "); 900c8afe684SRob Clark msm_gem_describe(obj, m); 901c8afe684SRob Clark count++; 902c8afe684SRob Clark size += obj->size; 903c8afe684SRob Clark } 904c8afe684SRob Clark 905c8afe684SRob Clark seq_printf(m, "Total %d objects, %zu bytes\n", count, size); 906c8afe684SRob Clark } 907c8afe684SRob Clark #endif 908c8afe684SRob Clark 909eecd7fd8SEmil Velikov /* don't call directly! Use drm_gem_object_put_locked() and friends */ 910c8afe684SRob Clark void msm_gem_free_object(struct drm_gem_object *obj) 911c8afe684SRob Clark { 912c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 91348e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 91448e7f183SKristian H. Kristensen struct msm_drm_private *priv = dev->dev_private; 91548e7f183SKristian H. Kristensen 91648e7f183SKristian H. Kristensen if (llist_add(&msm_obj->freed, &priv->free_list)) 91748e7f183SKristian H. Kristensen queue_work(priv->wq, &priv->free_work); 91848e7f183SKristian H. Kristensen } 91948e7f183SKristian H. Kristensen 92048e7f183SKristian H. Kristensen static void free_object(struct msm_gem_object *msm_obj) 92148e7f183SKristian H. Kristensen { 92248e7f183SKristian H. Kristensen struct drm_gem_object *obj = &msm_obj->base; 92348e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 924c8afe684SRob Clark 925c8afe684SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 926c8afe684SRob Clark 9277198e6b0SRob Clark /* object should not be on active list: */ 9287198e6b0SRob Clark WARN_ON(is_active(msm_obj)); 9297198e6b0SRob Clark 930c8afe684SRob Clark list_del(&msm_obj->mm_list); 931c8afe684SRob Clark 9320e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 9330e08270aSSushmita Susheelendra 9344fe5f65eSRob Clark put_iova(obj); 935c8afe684SRob Clark 93605b84911SRob Clark if (obj->import_attach) { 9378b6b7d84SDaniel Vetter WARN_ON(msm_obj->vaddr); 93805b84911SRob Clark 93905b84911SRob Clark /* Don't drop the pages for imported dmabuf, as they are not 94005b84911SRob Clark * ours, just free the array we allocated: 94105b84911SRob Clark */ 94205b84911SRob Clark if (msm_obj->pages) 9432098105eSMichal Hocko kvfree(msm_obj->pages); 94405b84911SRob Clark 945f28730c8Sjilai wang drm_prime_gem_destroy(obj, msm_obj->sgt); 94605b84911SRob Clark } else { 9470e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 948c8afe684SRob Clark put_pages(obj); 94905b84911SRob Clark } 950c8afe684SRob Clark 951c8afe684SRob Clark drm_gem_object_release(obj); 952c8afe684SRob Clark 9530e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 954c8afe684SRob Clark kfree(msm_obj); 955c8afe684SRob Clark } 956c8afe684SRob Clark 95748e7f183SKristian H. Kristensen void msm_gem_free_work(struct work_struct *work) 95848e7f183SKristian H. Kristensen { 95948e7f183SKristian H. Kristensen struct msm_drm_private *priv = 96048e7f183SKristian H. Kristensen container_of(work, struct msm_drm_private, free_work); 96148e7f183SKristian H. Kristensen struct drm_device *dev = priv->dev; 96248e7f183SKristian H. Kristensen struct llist_node *freed; 96348e7f183SKristian H. Kristensen struct msm_gem_object *msm_obj, *next; 96448e7f183SKristian H. Kristensen 96548e7f183SKristian H. Kristensen while ((freed = llist_del_all(&priv->free_list))) { 96648e7f183SKristian H. Kristensen 96748e7f183SKristian H. Kristensen mutex_lock(&dev->struct_mutex); 96848e7f183SKristian H. Kristensen 96948e7f183SKristian H. Kristensen llist_for_each_entry_safe(msm_obj, next, 97048e7f183SKristian H. Kristensen freed, freed) 97148e7f183SKristian H. Kristensen free_object(msm_obj); 97248e7f183SKristian H. Kristensen 97348e7f183SKristian H. Kristensen mutex_unlock(&dev->struct_mutex); 97448e7f183SKristian H. Kristensen 97548e7f183SKristian H. Kristensen if (need_resched()) 97648e7f183SKristian H. Kristensen break; 97748e7f183SKristian H. Kristensen } 97848e7f183SKristian H. Kristensen } 97948e7f183SKristian H. Kristensen 980c8afe684SRob Clark /* convenience method to construct a GEM buffer object, and userspace handle */ 981c8afe684SRob Clark int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file, 9820815d774SJordan Crouse uint32_t size, uint32_t flags, uint32_t *handle, 9830815d774SJordan Crouse char *name) 984c8afe684SRob Clark { 985c8afe684SRob Clark struct drm_gem_object *obj; 986c8afe684SRob Clark int ret; 987c8afe684SRob Clark 988c8afe684SRob Clark obj = msm_gem_new(dev, size, flags); 989c8afe684SRob Clark 990c8afe684SRob Clark if (IS_ERR(obj)) 991c8afe684SRob Clark return PTR_ERR(obj); 992c8afe684SRob Clark 9930815d774SJordan Crouse if (name) 9940815d774SJordan Crouse msm_gem_object_set_name(obj, "%s", name); 9950815d774SJordan Crouse 996c8afe684SRob Clark ret = drm_gem_handle_create(file, obj, handle); 997c8afe684SRob Clark 998c8afe684SRob Clark /* drop reference from allocate - handle holds it now */ 999f7d33950SEmil Velikov drm_gem_object_put(obj); 1000c8afe684SRob Clark 1001c8afe684SRob Clark return ret; 1002c8afe684SRob Clark } 1003c8afe684SRob Clark 100405b84911SRob Clark static int msm_gem_new_impl(struct drm_device *dev, 100505b84911SRob Clark uint32_t size, uint32_t flags, 10063cbdc8d8SAkhil P Oommen struct drm_gem_object **obj) 1007c8afe684SRob Clark { 1008c8afe684SRob Clark struct msm_gem_object *msm_obj; 1009c8afe684SRob Clark 1010c8afe684SRob Clark switch (flags & MSM_BO_CACHE_MASK) { 1011c8afe684SRob Clark case MSM_BO_UNCACHED: 1012c8afe684SRob Clark case MSM_BO_CACHED: 1013c8afe684SRob Clark case MSM_BO_WC: 1014c8afe684SRob Clark break; 1015c8afe684SRob Clark default: 10166a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "invalid cache flag: %x\n", 1017c8afe684SRob Clark (flags & MSM_BO_CACHE_MASK)); 101805b84911SRob Clark return -EINVAL; 1019c8afe684SRob Clark } 1020c8afe684SRob Clark 1021667ce33eSRob Clark msm_obj = kzalloc(sizeof(*msm_obj), GFP_KERNEL); 102205b84911SRob Clark if (!msm_obj) 102305b84911SRob Clark return -ENOMEM; 1024c8afe684SRob Clark 10250e08270aSSushmita Susheelendra mutex_init(&msm_obj->lock); 10260e08270aSSushmita Susheelendra 1027c8afe684SRob Clark msm_obj->flags = flags; 10284cd33c48SRob Clark msm_obj->madv = MSM_MADV_WILLNEED; 1029c8afe684SRob Clark 10307198e6b0SRob Clark INIT_LIST_HEAD(&msm_obj->submit_entry); 10314b85f7f5SRob Clark INIT_LIST_HEAD(&msm_obj->vmas); 10324b85f7f5SRob Clark 103305b84911SRob Clark *obj = &msm_obj->base; 103405b84911SRob Clark 103505b84911SRob Clark return 0; 103605b84911SRob Clark } 103705b84911SRob Clark 10380e08270aSSushmita Susheelendra static struct drm_gem_object *_msm_gem_new(struct drm_device *dev, 10390e08270aSSushmita Susheelendra uint32_t size, uint32_t flags, bool struct_mutex_locked) 104005b84911SRob Clark { 1041f4839bd5SRob Clark struct msm_drm_private *priv = dev->dev_private; 10423cbdc8d8SAkhil P Oommen struct msm_gem_object *msm_obj; 1043871d812aSRob Clark struct drm_gem_object *obj = NULL; 1044f4839bd5SRob Clark bool use_vram = false; 104505b84911SRob Clark int ret; 104605b84911SRob Clark 104705b84911SRob Clark size = PAGE_ALIGN(size); 104805b84911SRob Clark 1049c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) 1050f4839bd5SRob Clark use_vram = true; 105186f46f25SJonathan Marek else if ((flags & (MSM_BO_STOLEN | MSM_BO_SCANOUT)) && priv->vram.size) 1052f4839bd5SRob Clark use_vram = true; 1053f4839bd5SRob Clark 1054f4839bd5SRob Clark if (WARN_ON(use_vram && !priv->vram.size)) 1055f4839bd5SRob Clark return ERR_PTR(-EINVAL); 1056f4839bd5SRob Clark 10571a5dff5dSJordan Crouse /* Disallow zero sized objects as they make the underlying 10581a5dff5dSJordan Crouse * infrastructure grumpy 10591a5dff5dSJordan Crouse */ 10601a5dff5dSJordan Crouse if (size == 0) 10611a5dff5dSJordan Crouse return ERR_PTR(-EINVAL); 10621a5dff5dSJordan Crouse 10633cbdc8d8SAkhil P Oommen ret = msm_gem_new_impl(dev, size, flags, &obj); 106405b84911SRob Clark if (ret) 106505b84911SRob Clark goto fail; 106605b84911SRob Clark 10673cbdc8d8SAkhil P Oommen msm_obj = to_msm_bo(obj); 10683cbdc8d8SAkhil P Oommen 1069f4839bd5SRob Clark if (use_vram) { 10704b85f7f5SRob Clark struct msm_gem_vma *vma; 1071f4839bd5SRob Clark struct page **pages; 1072b3949a9aSHans Verkuil 1073b3949a9aSHans Verkuil mutex_lock(&msm_obj->lock); 1074f4839bd5SRob Clark 10754b85f7f5SRob Clark vma = add_vma(obj, NULL); 1076b3949a9aSHans Verkuil mutex_unlock(&msm_obj->lock); 10774b85f7f5SRob Clark if (IS_ERR(vma)) { 10784b85f7f5SRob Clark ret = PTR_ERR(vma); 10794b85f7f5SRob Clark goto fail; 10804b85f7f5SRob Clark } 10814b85f7f5SRob Clark 10824b85f7f5SRob Clark to_msm_bo(obj)->vram_node = &vma->node; 10834b85f7f5SRob Clark 1084f4839bd5SRob Clark drm_gem_private_object_init(dev, obj, size); 1085f4839bd5SRob Clark 1086f4839bd5SRob Clark pages = get_pages(obj); 1087f4839bd5SRob Clark if (IS_ERR(pages)) { 1088f4839bd5SRob Clark ret = PTR_ERR(pages); 1089f4839bd5SRob Clark goto fail; 1090f4839bd5SRob Clark } 10914b85f7f5SRob Clark 10924b85f7f5SRob Clark vma->iova = physaddr(obj); 1093f4839bd5SRob Clark } else { 109405b84911SRob Clark ret = drm_gem_object_init(dev, obj, size); 109505b84911SRob Clark if (ret) 109605b84911SRob Clark goto fail; 10970abdba47SLucas Stach /* 10980abdba47SLucas Stach * Our buffers are kept pinned, so allocating them from the 10990abdba47SLucas Stach * MOVABLE zone is a really bad idea, and conflicts with CMA. 11000abdba47SLucas Stach * See comments above new_inode() why this is required _and_ 11010abdba47SLucas Stach * expected if you're going to pin these pages. 11020abdba47SLucas Stach */ 11030abdba47SLucas Stach mapping_set_gfp_mask(obj->filp->f_mapping, GFP_HIGHUSER); 1104871d812aSRob Clark } 110505b84911SRob Clark 11063cbdc8d8SAkhil P Oommen if (struct_mutex_locked) { 11073cbdc8d8SAkhil P Oommen WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 11083cbdc8d8SAkhil P Oommen list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 11093cbdc8d8SAkhil P Oommen } else { 11103cbdc8d8SAkhil P Oommen mutex_lock(&dev->struct_mutex); 11113cbdc8d8SAkhil P Oommen list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 11123cbdc8d8SAkhil P Oommen mutex_unlock(&dev->struct_mutex); 11133cbdc8d8SAkhil P Oommen } 11143cbdc8d8SAkhil P Oommen 111505b84911SRob Clark return obj; 111605b84911SRob Clark 111705b84911SRob Clark fail: 1118f7d33950SEmil Velikov drm_gem_object_put(obj); 111905b84911SRob Clark return ERR_PTR(ret); 112005b84911SRob Clark } 112105b84911SRob Clark 11220e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev, 11230e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 11240e08270aSSushmita Susheelendra { 11250e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, true); 11260e08270aSSushmita Susheelendra } 11270e08270aSSushmita Susheelendra 11280e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new(struct drm_device *dev, 11290e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 11300e08270aSSushmita Susheelendra { 11310e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, false); 11320e08270aSSushmita Susheelendra } 11330e08270aSSushmita Susheelendra 113405b84911SRob Clark struct drm_gem_object *msm_gem_import(struct drm_device *dev, 113579f0e202SRob Clark struct dma_buf *dmabuf, struct sg_table *sgt) 113605b84911SRob Clark { 11373cbdc8d8SAkhil P Oommen struct msm_drm_private *priv = dev->dev_private; 113805b84911SRob Clark struct msm_gem_object *msm_obj; 113905b84911SRob Clark struct drm_gem_object *obj; 114079f0e202SRob Clark uint32_t size; 114105b84911SRob Clark int ret, npages; 114205b84911SRob Clark 1143871d812aSRob Clark /* if we don't have IOMMU, don't bother pretending we can import: */ 1144c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) { 11456a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "cannot import without IOMMU\n"); 1146871d812aSRob Clark return ERR_PTR(-EINVAL); 1147871d812aSRob Clark } 1148871d812aSRob Clark 114979f0e202SRob Clark size = PAGE_ALIGN(dmabuf->size); 115005b84911SRob Clark 11513cbdc8d8SAkhil P Oommen ret = msm_gem_new_impl(dev, size, MSM_BO_WC, &obj); 115205b84911SRob Clark if (ret) 115305b84911SRob Clark goto fail; 115405b84911SRob Clark 115505b84911SRob Clark drm_gem_private_object_init(dev, obj, size); 115605b84911SRob Clark 115705b84911SRob Clark npages = size / PAGE_SIZE; 115805b84911SRob Clark 115905b84911SRob Clark msm_obj = to_msm_bo(obj); 11600e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 116105b84911SRob Clark msm_obj->sgt = sgt; 11622098105eSMichal Hocko msm_obj->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 116305b84911SRob Clark if (!msm_obj->pages) { 11640e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 116505b84911SRob Clark ret = -ENOMEM; 116605b84911SRob Clark goto fail; 116705b84911SRob Clark } 116805b84911SRob Clark 116905b84911SRob Clark ret = drm_prime_sg_to_page_addr_arrays(sgt, msm_obj->pages, NULL, npages); 11700e08270aSSushmita Susheelendra if (ret) { 11710e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 117205b84911SRob Clark goto fail; 11730e08270aSSushmita Susheelendra } 117405b84911SRob Clark 11750e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 11763cbdc8d8SAkhil P Oommen 11773cbdc8d8SAkhil P Oommen mutex_lock(&dev->struct_mutex); 11783cbdc8d8SAkhil P Oommen list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 11793cbdc8d8SAkhil P Oommen mutex_unlock(&dev->struct_mutex); 11803cbdc8d8SAkhil P Oommen 1181c8afe684SRob Clark return obj; 1182c8afe684SRob Clark 1183c8afe684SRob Clark fail: 1184f7d33950SEmil Velikov drm_gem_object_put(obj); 1185c8afe684SRob Clark return ERR_PTR(ret); 1186c8afe684SRob Clark } 11878223286dSJordan Crouse 11888223286dSJordan Crouse static void *_msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 11898223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 11908223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova, bool locked) 11918223286dSJordan Crouse { 11928223286dSJordan Crouse void *vaddr; 11938223286dSJordan Crouse struct drm_gem_object *obj = _msm_gem_new(dev, size, flags, locked); 11948223286dSJordan Crouse int ret; 11958223286dSJordan Crouse 11968223286dSJordan Crouse if (IS_ERR(obj)) 11978223286dSJordan Crouse return ERR_CAST(obj); 11988223286dSJordan Crouse 11998223286dSJordan Crouse if (iova) { 12009fe041f6SJordan Crouse ret = msm_gem_get_and_pin_iova(obj, aspace, iova); 120193f7abf1SJordan Crouse if (ret) 120293f7abf1SJordan Crouse goto err; 12038223286dSJordan Crouse } 12048223286dSJordan Crouse 12058223286dSJordan Crouse vaddr = msm_gem_get_vaddr(obj); 1206c9811d0fSWei Yongjun if (IS_ERR(vaddr)) { 12077ad0e8cfSJordan Crouse msm_gem_unpin_iova(obj, aspace); 120893f7abf1SJordan Crouse ret = PTR_ERR(vaddr); 120993f7abf1SJordan Crouse goto err; 12108223286dSJordan Crouse } 12118223286dSJordan Crouse 12128223286dSJordan Crouse if (bo) 12138223286dSJordan Crouse *bo = obj; 12148223286dSJordan Crouse 12158223286dSJordan Crouse return vaddr; 121693f7abf1SJordan Crouse err: 121793f7abf1SJordan Crouse if (locked) 1218eecd7fd8SEmil Velikov drm_gem_object_put_locked(obj); 121993f7abf1SJordan Crouse else 1220f7d33950SEmil Velikov drm_gem_object_put(obj); 122193f7abf1SJordan Crouse 122293f7abf1SJordan Crouse return ERR_PTR(ret); 122393f7abf1SJordan Crouse 12248223286dSJordan Crouse } 12258223286dSJordan Crouse 12268223286dSJordan Crouse void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 12278223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 12288223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 12298223286dSJordan Crouse { 12308223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, false); 12318223286dSJordan Crouse } 12328223286dSJordan Crouse 12338223286dSJordan Crouse void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size, 12348223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 12358223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 12368223286dSJordan Crouse { 12378223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, true); 12388223286dSJordan Crouse } 12391e29dff0SJordan Crouse 12401e29dff0SJordan Crouse void msm_gem_kernel_put(struct drm_gem_object *bo, 12411e29dff0SJordan Crouse struct msm_gem_address_space *aspace, bool locked) 12421e29dff0SJordan Crouse { 12431e29dff0SJordan Crouse if (IS_ERR_OR_NULL(bo)) 12441e29dff0SJordan Crouse return; 12451e29dff0SJordan Crouse 12461e29dff0SJordan Crouse msm_gem_put_vaddr(bo); 12477ad0e8cfSJordan Crouse msm_gem_unpin_iova(bo, aspace); 12481e29dff0SJordan Crouse 12491e29dff0SJordan Crouse if (locked) 1250eecd7fd8SEmil Velikov drm_gem_object_put_locked(bo); 12511e29dff0SJordan Crouse else 1252f7d33950SEmil Velikov drm_gem_object_put(bo); 12531e29dff0SJordan Crouse } 12540815d774SJordan Crouse 12550815d774SJordan Crouse void msm_gem_object_set_name(struct drm_gem_object *bo, const char *fmt, ...) 12560815d774SJordan Crouse { 12570815d774SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(bo); 12580815d774SJordan Crouse va_list ap; 12590815d774SJordan Crouse 12600815d774SJordan Crouse if (!fmt) 12610815d774SJordan Crouse return; 12620815d774SJordan Crouse 12630815d774SJordan Crouse va_start(ap, fmt); 12640815d774SJordan Crouse vsnprintf(msm_obj->name, sizeof(msm_obj->name), fmt, ap); 12650815d774SJordan Crouse va_end(ap); 12660815d774SJordan Crouse } 1267