1caab277bSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2c8afe684SRob Clark /* 3c8afe684SRob Clark * Copyright (C) 2013 Red Hat 4c8afe684SRob Clark * Author: Rob Clark <robdclark@gmail.com> 5c8afe684SRob Clark */ 6c8afe684SRob Clark 70a0f0d8bSChristoph Hellwig #include <linux/dma-map-ops.h> 8c8afe684SRob Clark #include <linux/spinlock.h> 9c8afe684SRob Clark #include <linux/shmem_fs.h> 1005b84911SRob Clark #include <linux/dma-buf.h> 1101c8f1c4SDan Williams #include <linux/pfn_t.h> 12c8afe684SRob Clark 13feea39a8SSam Ravnborg #include <drm/drm_prime.h> 14feea39a8SSam Ravnborg 15c8afe684SRob Clark #include "msm_drv.h" 16fde5de6cSRob Clark #include "msm_fence.h" 17c8afe684SRob Clark #include "msm_gem.h" 187198e6b0SRob Clark #include "msm_gpu.h" 19871d812aSRob Clark #include "msm_mmu.h" 20c8afe684SRob Clark 210e08270aSSushmita Susheelendra 22871d812aSRob Clark static dma_addr_t physaddr(struct drm_gem_object *obj) 23871d812aSRob Clark { 24871d812aSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 25871d812aSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 26871d812aSRob Clark return (((dma_addr_t)msm_obj->vram_node->start) << PAGE_SHIFT) + 27871d812aSRob Clark priv->vram.paddr; 28871d812aSRob Clark } 29871d812aSRob Clark 30072f1f91SRob Clark static bool use_pages(struct drm_gem_object *obj) 31072f1f91SRob Clark { 32072f1f91SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 33072f1f91SRob Clark return !msm_obj->vram_node; 34072f1f91SRob Clark } 35072f1f91SRob Clark 363de433c5SRob Clark /* 373de433c5SRob Clark * Cache sync.. this is a bit over-complicated, to fit dma-mapping 383de433c5SRob Clark * API. Really GPU cache is out of scope here (handled on cmdstream) 393de433c5SRob Clark * and all we need to do is invalidate newly allocated pages before 403de433c5SRob Clark * mapping to CPU as uncached/writecombine. 413de433c5SRob Clark * 423de433c5SRob Clark * On top of this, we have the added headache, that depending on 433de433c5SRob Clark * display generation, the display's iommu may be wired up to either 443de433c5SRob Clark * the toplevel drm device (mdss), or to the mdp sub-node, meaning 453de433c5SRob Clark * that here we either have dma-direct or iommu ops. 463de433c5SRob Clark * 473de433c5SRob Clark * Let this be a cautionary tail of abstraction gone wrong. 483de433c5SRob Clark */ 493de433c5SRob Clark 503de433c5SRob Clark static void sync_for_device(struct msm_gem_object *msm_obj) 513de433c5SRob Clark { 523de433c5SRob Clark struct device *dev = msm_obj->base.dev->dev; 533de433c5SRob Clark 547690a33fSMarek Szyprowski dma_map_sgtable(dev, msm_obj->sgt, DMA_BIDIRECTIONAL, 0); 553de433c5SRob Clark } 563de433c5SRob Clark 573de433c5SRob Clark static void sync_for_cpu(struct msm_gem_object *msm_obj) 583de433c5SRob Clark { 593de433c5SRob Clark struct device *dev = msm_obj->base.dev->dev; 603de433c5SRob Clark 617690a33fSMarek Szyprowski dma_unmap_sgtable(dev, msm_obj->sgt, DMA_BIDIRECTIONAL, 0); 623de433c5SRob Clark } 633de433c5SRob Clark 64871d812aSRob Clark /* allocate pages from VRAM carveout, used when no IOMMU: */ 650e08270aSSushmita Susheelendra static struct page **get_pages_vram(struct drm_gem_object *obj, int npages) 66871d812aSRob Clark { 67871d812aSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 68871d812aSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 69871d812aSRob Clark dma_addr_t paddr; 70871d812aSRob Clark struct page **p; 71871d812aSRob Clark int ret, i; 72871d812aSRob Clark 732098105eSMichal Hocko p = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 74871d812aSRob Clark if (!p) 75871d812aSRob Clark return ERR_PTR(-ENOMEM); 76871d812aSRob Clark 770e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 784e64e553SChris Wilson ret = drm_mm_insert_node(&priv->vram.mm, msm_obj->vram_node, npages); 790e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 80871d812aSRob Clark if (ret) { 812098105eSMichal Hocko kvfree(p); 82871d812aSRob Clark return ERR_PTR(ret); 83871d812aSRob Clark } 84871d812aSRob Clark 85871d812aSRob Clark paddr = physaddr(obj); 86871d812aSRob Clark for (i = 0; i < npages; i++) { 87871d812aSRob Clark p[i] = phys_to_page(paddr); 88871d812aSRob Clark paddr += PAGE_SIZE; 89871d812aSRob Clark } 90871d812aSRob Clark 91871d812aSRob Clark return p; 92871d812aSRob Clark } 93c8afe684SRob Clark 94c8afe684SRob Clark static struct page **get_pages(struct drm_gem_object *obj) 95c8afe684SRob Clark { 96c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 97c8afe684SRob Clark 98c8afe684SRob Clark if (!msm_obj->pages) { 99c8afe684SRob Clark struct drm_device *dev = obj->dev; 100871d812aSRob Clark struct page **p; 101c8afe684SRob Clark int npages = obj->size >> PAGE_SHIFT; 102c8afe684SRob Clark 103072f1f91SRob Clark if (use_pages(obj)) 1040cdbe8acSDavid Herrmann p = drm_gem_get_pages(obj); 105871d812aSRob Clark else 106871d812aSRob Clark p = get_pages_vram(obj, npages); 107871d812aSRob Clark 108c8afe684SRob Clark if (IS_ERR(p)) { 1096a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not get pages: %ld\n", 110c8afe684SRob Clark PTR_ERR(p)); 111c8afe684SRob Clark return p; 112c8afe684SRob Clark } 113c8afe684SRob Clark 11462e3a3e3SPrakash Kamliya msm_obj->pages = p; 11562e3a3e3SPrakash Kamliya 116707d561fSGerd Hoffmann msm_obj->sgt = drm_prime_pages_to_sg(obj->dev, p, npages); 1171f70e079SWei Yongjun if (IS_ERR(msm_obj->sgt)) { 11862e3a3e3SPrakash Kamliya void *ptr = ERR_CAST(msm_obj->sgt); 119c8afe684SRob Clark 1206a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "failed to allocate sgt\n"); 12162e3a3e3SPrakash Kamliya msm_obj->sgt = NULL; 12262e3a3e3SPrakash Kamliya return ptr; 12362e3a3e3SPrakash Kamliya } 124c8afe684SRob Clark 125c8afe684SRob Clark /* For non-cached buffers, ensure the new pages are clean 126c8afe684SRob Clark * because display controller, GPU, etc. are not coherent: 127c8afe684SRob Clark */ 128c8afe684SRob Clark if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) 1293de433c5SRob Clark sync_for_device(msm_obj); 130c8afe684SRob Clark } 131c8afe684SRob Clark 132c8afe684SRob Clark return msm_obj->pages; 133c8afe684SRob Clark } 134c8afe684SRob Clark 1350e08270aSSushmita Susheelendra static void put_pages_vram(struct drm_gem_object *obj) 1360e08270aSSushmita Susheelendra { 1370e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 1380e08270aSSushmita Susheelendra struct msm_drm_private *priv = obj->dev->dev_private; 1390e08270aSSushmita Susheelendra 1400e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 1410e08270aSSushmita Susheelendra drm_mm_remove_node(msm_obj->vram_node); 1420e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 1430e08270aSSushmita Susheelendra 1440e08270aSSushmita Susheelendra kvfree(msm_obj->pages); 1450e08270aSSushmita Susheelendra } 1460e08270aSSushmita Susheelendra 147c8afe684SRob Clark static void put_pages(struct drm_gem_object *obj) 148c8afe684SRob Clark { 149c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 150c8afe684SRob Clark 151c8afe684SRob Clark if (msm_obj->pages) { 1523976626eSBen Hutchings if (msm_obj->sgt) { 1533976626eSBen Hutchings /* For non-cached buffers, ensure the new 1543976626eSBen Hutchings * pages are clean because display controller, 1553976626eSBen Hutchings * GPU, etc. are not coherent: 156c8afe684SRob Clark */ 157c8afe684SRob Clark if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) 1583de433c5SRob Clark sync_for_cpu(msm_obj); 15962e3a3e3SPrakash Kamliya 160c8afe684SRob Clark sg_free_table(msm_obj->sgt); 161c8afe684SRob Clark kfree(msm_obj->sgt); 1623976626eSBen Hutchings } 163c8afe684SRob Clark 164072f1f91SRob Clark if (use_pages(obj)) 165c8afe684SRob Clark drm_gem_put_pages(obj, msm_obj->pages, true, false); 1660e08270aSSushmita Susheelendra else 1670e08270aSSushmita Susheelendra put_pages_vram(obj); 168871d812aSRob Clark 169c8afe684SRob Clark msm_obj->pages = NULL; 170c8afe684SRob Clark } 171c8afe684SRob Clark } 172c8afe684SRob Clark 17305b84911SRob Clark struct page **msm_gem_get_pages(struct drm_gem_object *obj) 17405b84911SRob Clark { 1750e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 17605b84911SRob Clark struct page **p; 1770e08270aSSushmita Susheelendra 178a6ae74c9SRob Clark msm_gem_lock(obj); 1790e08270aSSushmita Susheelendra 1800e08270aSSushmita Susheelendra if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 181a6ae74c9SRob Clark msm_gem_unlock(obj); 1820e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 1830e08270aSSushmita Susheelendra } 1840e08270aSSushmita Susheelendra 18505b84911SRob Clark p = get_pages(obj); 186a6ae74c9SRob Clark msm_gem_unlock(obj); 18705b84911SRob Clark return p; 18805b84911SRob Clark } 18905b84911SRob Clark 19005b84911SRob Clark void msm_gem_put_pages(struct drm_gem_object *obj) 19105b84911SRob Clark { 19205b84911SRob Clark /* when we start tracking the pin count, then do something here */ 19305b84911SRob Clark } 19405b84911SRob Clark 195c8afe684SRob Clark int msm_gem_mmap_obj(struct drm_gem_object *obj, 196c8afe684SRob Clark struct vm_area_struct *vma) 197c8afe684SRob Clark { 198c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 199c8afe684SRob Clark 200c8afe684SRob Clark vma->vm_flags &= ~VM_PFNMAP; 201c8afe684SRob Clark vma->vm_flags |= VM_MIXEDMAP; 202c8afe684SRob Clark 203c8afe684SRob Clark if (msm_obj->flags & MSM_BO_WC) { 204c8afe684SRob Clark vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); 205c8afe684SRob Clark } else if (msm_obj->flags & MSM_BO_UNCACHED) { 206c8afe684SRob Clark vma->vm_page_prot = pgprot_noncached(vm_get_page_prot(vma->vm_flags)); 207c8afe684SRob Clark } else { 208c8afe684SRob Clark /* 209c8afe684SRob Clark * Shunt off cached objs to shmem file so they have their own 210c8afe684SRob Clark * address_space (so unmap_mapping_range does what we want, 211c8afe684SRob Clark * in particular in the case of mmap'd dmabufs) 212c8afe684SRob Clark */ 213c8afe684SRob Clark fput(vma->vm_file); 214c8afe684SRob Clark get_file(obj->filp); 215c8afe684SRob Clark vma->vm_pgoff = 0; 216c8afe684SRob Clark vma->vm_file = obj->filp; 217c8afe684SRob Clark 218c8afe684SRob Clark vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); 219c8afe684SRob Clark } 220c8afe684SRob Clark 221c8afe684SRob Clark return 0; 222c8afe684SRob Clark } 223c8afe684SRob Clark 224c8afe684SRob Clark int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma) 225c8afe684SRob Clark { 226c8afe684SRob Clark int ret; 227c8afe684SRob Clark 228c8afe684SRob Clark ret = drm_gem_mmap(filp, vma); 229c8afe684SRob Clark if (ret) { 230c8afe684SRob Clark DBG("mmap failed: %d", ret); 231c8afe684SRob Clark return ret; 232c8afe684SRob Clark } 233c8afe684SRob Clark 234c8afe684SRob Clark return msm_gem_mmap_obj(vma->vm_private_data, vma); 235c8afe684SRob Clark } 236c8afe684SRob Clark 237a5f74ec7SSouptick Joarder vm_fault_t msm_gem_fault(struct vm_fault *vmf) 238c8afe684SRob Clark { 23911bac800SDave Jiang struct vm_area_struct *vma = vmf->vma; 240c8afe684SRob Clark struct drm_gem_object *obj = vma->vm_private_data; 2410e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 242c8afe684SRob Clark struct page **pages; 243c8afe684SRob Clark unsigned long pfn; 244c8afe684SRob Clark pgoff_t pgoff; 245a5f74ec7SSouptick Joarder int err; 246a5f74ec7SSouptick Joarder vm_fault_t ret; 247c8afe684SRob Clark 2480e08270aSSushmita Susheelendra /* 2490e08270aSSushmita Susheelendra * vm_ops.open/drm_gem_mmap_obj and close get and put 2500e08270aSSushmita Susheelendra * a reference on obj. So, we dont need to hold one here. 251d78d383aSRob Clark */ 252a6ae74c9SRob Clark err = msm_gem_lock_interruptible(obj); 253a5f74ec7SSouptick Joarder if (err) { 254a5f74ec7SSouptick Joarder ret = VM_FAULT_NOPAGE; 255c8afe684SRob Clark goto out; 256a5f74ec7SSouptick Joarder } 257c8afe684SRob Clark 2580e08270aSSushmita Susheelendra if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 259a6ae74c9SRob Clark msm_gem_unlock(obj); 2600e08270aSSushmita Susheelendra return VM_FAULT_SIGBUS; 2610e08270aSSushmita Susheelendra } 2620e08270aSSushmita Susheelendra 263c8afe684SRob Clark /* make sure we have pages attached now */ 264c8afe684SRob Clark pages = get_pages(obj); 265c8afe684SRob Clark if (IS_ERR(pages)) { 266a5f74ec7SSouptick Joarder ret = vmf_error(PTR_ERR(pages)); 267c8afe684SRob Clark goto out_unlock; 268c8afe684SRob Clark } 269c8afe684SRob Clark 270c8afe684SRob Clark /* We don't use vmf->pgoff since that has the fake offset: */ 2711a29d85eSJan Kara pgoff = (vmf->address - vma->vm_start) >> PAGE_SHIFT; 272c8afe684SRob Clark 273871d812aSRob Clark pfn = page_to_pfn(pages[pgoff]); 274c8afe684SRob Clark 2751a29d85eSJan Kara VERB("Inserting %p pfn %lx, pa %lx", (void *)vmf->address, 276c8afe684SRob Clark pfn, pfn << PAGE_SHIFT); 277c8afe684SRob Clark 278a5f74ec7SSouptick Joarder ret = vmf_insert_mixed(vma, vmf->address, __pfn_to_pfn_t(pfn, PFN_DEV)); 279c8afe684SRob Clark out_unlock: 280a6ae74c9SRob Clark msm_gem_unlock(obj); 281c8afe684SRob Clark out: 282a5f74ec7SSouptick Joarder return ret; 283c8afe684SRob Clark } 284c8afe684SRob Clark 285c8afe684SRob Clark /** get mmap offset */ 286c8afe684SRob Clark static uint64_t mmap_offset(struct drm_gem_object *obj) 287c8afe684SRob Clark { 288c8afe684SRob Clark struct drm_device *dev = obj->dev; 289c8afe684SRob Clark int ret; 290c8afe684SRob Clark 291a6ae74c9SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 292c8afe684SRob Clark 293c8afe684SRob Clark /* Make it mmapable */ 294c8afe684SRob Clark ret = drm_gem_create_mmap_offset(obj); 295c8afe684SRob Clark 296c8afe684SRob Clark if (ret) { 2976a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not allocate mmap offset\n"); 298c8afe684SRob Clark return 0; 299c8afe684SRob Clark } 300c8afe684SRob Clark 301c8afe684SRob Clark return drm_vma_node_offset_addr(&obj->vma_node); 302c8afe684SRob Clark } 303c8afe684SRob Clark 304c8afe684SRob Clark uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj) 305c8afe684SRob Clark { 306c8afe684SRob Clark uint64_t offset; 3070e08270aSSushmita Susheelendra 308a6ae74c9SRob Clark msm_gem_lock(obj); 309c8afe684SRob Clark offset = mmap_offset(obj); 310a6ae74c9SRob Clark msm_gem_unlock(obj); 311c8afe684SRob Clark return offset; 312c8afe684SRob Clark } 313c8afe684SRob Clark 3144b85f7f5SRob Clark static struct msm_gem_vma *add_vma(struct drm_gem_object *obj, 3154b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3164b85f7f5SRob Clark { 3174b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3184b85f7f5SRob Clark struct msm_gem_vma *vma; 3194b85f7f5SRob Clark 320a6ae74c9SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 3210e08270aSSushmita Susheelendra 3224b85f7f5SRob Clark vma = kzalloc(sizeof(*vma), GFP_KERNEL); 3234b85f7f5SRob Clark if (!vma) 3244b85f7f5SRob Clark return ERR_PTR(-ENOMEM); 3254b85f7f5SRob Clark 3264b85f7f5SRob Clark vma->aspace = aspace; 3274b85f7f5SRob Clark 3284b85f7f5SRob Clark list_add_tail(&vma->list, &msm_obj->vmas); 3294b85f7f5SRob Clark 3304b85f7f5SRob Clark return vma; 3314b85f7f5SRob Clark } 3324b85f7f5SRob Clark 3334b85f7f5SRob Clark static struct msm_gem_vma *lookup_vma(struct drm_gem_object *obj, 3344b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3354b85f7f5SRob Clark { 3364b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3374b85f7f5SRob Clark struct msm_gem_vma *vma; 3384b85f7f5SRob Clark 339a6ae74c9SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 3404b85f7f5SRob Clark 3414b85f7f5SRob Clark list_for_each_entry(vma, &msm_obj->vmas, list) { 3424b85f7f5SRob Clark if (vma->aspace == aspace) 3434b85f7f5SRob Clark return vma; 3444b85f7f5SRob Clark } 3454b85f7f5SRob Clark 3464b85f7f5SRob Clark return NULL; 3474b85f7f5SRob Clark } 3484b85f7f5SRob Clark 3494b85f7f5SRob Clark static void del_vma(struct msm_gem_vma *vma) 3504b85f7f5SRob Clark { 3514b85f7f5SRob Clark if (!vma) 3524b85f7f5SRob Clark return; 3534b85f7f5SRob Clark 3544b85f7f5SRob Clark list_del(&vma->list); 3554b85f7f5SRob Clark kfree(vma); 3564b85f7f5SRob Clark } 3574b85f7f5SRob Clark 358a6ae74c9SRob Clark /* Called with msm_obj locked */ 3594fe5f65eSRob Clark static void 3604fe5f65eSRob Clark put_iova(struct drm_gem_object *obj) 3614fe5f65eSRob Clark { 3624fe5f65eSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3634b85f7f5SRob Clark struct msm_gem_vma *vma, *tmp; 3644fe5f65eSRob Clark 365a6ae74c9SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 3664fe5f65eSRob Clark 3674b85f7f5SRob Clark list_for_each_entry_safe(vma, tmp, &msm_obj->vmas, list) { 368d67f1b6dSBrian Masney if (vma->aspace) { 3697ad0e8cfSJordan Crouse msm_gem_purge_vma(vma->aspace, vma); 3707ad0e8cfSJordan Crouse msm_gem_close_vma(vma->aspace, vma); 371d67f1b6dSBrian Masney } 3724b85f7f5SRob Clark del_vma(vma); 3734fe5f65eSRob Clark } 3744fe5f65eSRob Clark } 3754fe5f65eSRob Clark 3768117e5e5SRob Clark static int get_iova_locked(struct drm_gem_object *obj, 377d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova, 378d3b8877eSJonathan Marek u64 range_start, u64 range_end) 379c8afe684SRob Clark { 3804b85f7f5SRob Clark struct msm_gem_vma *vma; 381c8afe684SRob Clark int ret = 0; 382c8afe684SRob Clark 383a6ae74c9SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 384cb1e3818SRob Clark 3854b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 386871d812aSRob Clark 3874b85f7f5SRob Clark if (!vma) { 3884b85f7f5SRob Clark vma = add_vma(obj, aspace); 389c0ee9794SJordan Crouse if (IS_ERR(vma)) 390c0ee9794SJordan Crouse return PTR_ERR(vma); 3914b85f7f5SRob Clark 392d3b8877eSJonathan Marek ret = msm_gem_init_vma(aspace, vma, obj->size >> PAGE_SHIFT, 393d3b8877eSJonathan Marek range_start, range_end); 394c0ee9794SJordan Crouse if (ret) { 395c0ee9794SJordan Crouse del_vma(vma); 396c0ee9794SJordan Crouse return ret; 397c8afe684SRob Clark } 3984b85f7f5SRob Clark } 3994b85f7f5SRob Clark 4004b85f7f5SRob Clark *iova = vma->iova; 4014b85f7f5SRob Clark return 0; 402c0ee9794SJordan Crouse } 4034b85f7f5SRob Clark 404c0ee9794SJordan Crouse static int msm_gem_pin_iova(struct drm_gem_object *obj, 405c0ee9794SJordan Crouse struct msm_gem_address_space *aspace) 406c0ee9794SJordan Crouse { 407c0ee9794SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 408c0ee9794SJordan Crouse struct msm_gem_vma *vma; 409c0ee9794SJordan Crouse struct page **pages; 410bbc2cd07SRob Clark int prot = IOMMU_READ; 411bbc2cd07SRob Clark 412bbc2cd07SRob Clark if (!(msm_obj->flags & MSM_BO_GPU_READONLY)) 413bbc2cd07SRob Clark prot |= IOMMU_WRITE; 414c0ee9794SJordan Crouse 4150b462d7aSJonathan Marek if (msm_obj->flags & MSM_BO_MAP_PRIV) 4160b462d7aSJonathan Marek prot |= IOMMU_PRIV; 4170b462d7aSJonathan Marek 418a6ae74c9SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 419c0ee9794SJordan Crouse 420c0ee9794SJordan Crouse if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) 421c0ee9794SJordan Crouse return -EBUSY; 422c0ee9794SJordan Crouse 423c0ee9794SJordan Crouse vma = lookup_vma(obj, aspace); 424c0ee9794SJordan Crouse if (WARN_ON(!vma)) 425c0ee9794SJordan Crouse return -EINVAL; 426c0ee9794SJordan Crouse 427c0ee9794SJordan Crouse pages = get_pages(obj); 428c0ee9794SJordan Crouse if (IS_ERR(pages)) 429c0ee9794SJordan Crouse return PTR_ERR(pages); 430c0ee9794SJordan Crouse 431bbc2cd07SRob Clark return msm_gem_map_vma(aspace, vma, prot, 432bbc2cd07SRob Clark msm_obj->sgt, obj->size >> PAGE_SHIFT); 433c0ee9794SJordan Crouse } 434c0ee9794SJordan Crouse 435e4b87d22SRob Clark static int get_and_pin_iova_range_locked(struct drm_gem_object *obj, 436d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova, 437d3b8877eSJonathan Marek u64 range_start, u64 range_end) 438c0ee9794SJordan Crouse { 439c0ee9794SJordan Crouse u64 local; 440c0ee9794SJordan Crouse int ret; 441c0ee9794SJordan Crouse 442e4b87d22SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 443c0ee9794SJordan Crouse 4448117e5e5SRob Clark ret = get_iova_locked(obj, aspace, &local, 445d3b8877eSJonathan Marek range_start, range_end); 446c0ee9794SJordan Crouse 447c0ee9794SJordan Crouse if (!ret) 448c0ee9794SJordan Crouse ret = msm_gem_pin_iova(obj, aspace); 449c0ee9794SJordan Crouse 450c0ee9794SJordan Crouse if (!ret) 451c0ee9794SJordan Crouse *iova = local; 452c0ee9794SJordan Crouse 453c8afe684SRob Clark return ret; 454c8afe684SRob Clark } 455c8afe684SRob Clark 456e4b87d22SRob Clark /* 457e4b87d22SRob Clark * get iova and pin it. Should have a matching put 458e4b87d22SRob Clark * limits iova to specified range (in pages) 459e4b87d22SRob Clark */ 460e4b87d22SRob Clark int msm_gem_get_and_pin_iova_range(struct drm_gem_object *obj, 461e4b87d22SRob Clark struct msm_gem_address_space *aspace, uint64_t *iova, 462e4b87d22SRob Clark u64 range_start, u64 range_end) 463e4b87d22SRob Clark { 464e4b87d22SRob Clark int ret; 465e4b87d22SRob Clark 466e4b87d22SRob Clark msm_gem_lock(obj); 467e4b87d22SRob Clark ret = get_and_pin_iova_range_locked(obj, aspace, iova, range_start, range_end); 468e4b87d22SRob Clark msm_gem_unlock(obj); 469e4b87d22SRob Clark 470e4b87d22SRob Clark return ret; 471e4b87d22SRob Clark } 472e4b87d22SRob Clark 473e4b87d22SRob Clark int msm_gem_get_and_pin_iova_locked(struct drm_gem_object *obj, 474e4b87d22SRob Clark struct msm_gem_address_space *aspace, uint64_t *iova) 475e4b87d22SRob Clark { 476e4b87d22SRob Clark return get_and_pin_iova_range_locked(obj, aspace, iova, 0, U64_MAX); 477e4b87d22SRob Clark } 478e4b87d22SRob Clark 479d3b8877eSJonathan Marek /* get iova and pin it. Should have a matching put */ 480d3b8877eSJonathan Marek int msm_gem_get_and_pin_iova(struct drm_gem_object *obj, 481d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova) 482d3b8877eSJonathan Marek { 483d3b8877eSJonathan Marek return msm_gem_get_and_pin_iova_range(obj, aspace, iova, 0, U64_MAX); 484d3b8877eSJonathan Marek } 485d3b8877eSJonathan Marek 4867ad0e8cfSJordan Crouse /* 4877ad0e8cfSJordan Crouse * Get an iova but don't pin it. Doesn't need a put because iovas are currently 4887ad0e8cfSJordan Crouse * valid for the life of the object 4897ad0e8cfSJordan Crouse */ 4909fe041f6SJordan Crouse int msm_gem_get_iova(struct drm_gem_object *obj, 4919fe041f6SJordan Crouse struct msm_gem_address_space *aspace, uint64_t *iova) 4929fe041f6SJordan Crouse { 4939fe041f6SJordan Crouse int ret; 4949fe041f6SJordan Crouse 495a6ae74c9SRob Clark msm_gem_lock(obj); 4968117e5e5SRob Clark ret = get_iova_locked(obj, aspace, iova, 0, U64_MAX); 497a6ae74c9SRob Clark msm_gem_unlock(obj); 4989fe041f6SJordan Crouse 4999fe041f6SJordan Crouse return ret; 5009fe041f6SJordan Crouse } 5019fe041f6SJordan Crouse 5022638d90aSRob Clark /* get iova without taking a reference, used in places where you have 5039fe041f6SJordan Crouse * already done a 'msm_gem_get_and_pin_iova' or 'msm_gem_get_iova' 5042638d90aSRob Clark */ 5058bdcd949SRob Clark uint64_t msm_gem_iova(struct drm_gem_object *obj, 5068bdcd949SRob Clark struct msm_gem_address_space *aspace) 5072638d90aSRob Clark { 5084b85f7f5SRob Clark struct msm_gem_vma *vma; 5094b85f7f5SRob Clark 510a6ae74c9SRob Clark msm_gem_lock(obj); 5114b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 512a6ae74c9SRob Clark msm_gem_unlock(obj); 5134b85f7f5SRob Clark WARN_ON(!vma); 5144b85f7f5SRob Clark 5154b85f7f5SRob Clark return vma ? vma->iova : 0; 5162638d90aSRob Clark } 5172638d90aSRob Clark 5187ad0e8cfSJordan Crouse /* 519e4b87d22SRob Clark * Locked variant of msm_gem_unpin_iova() 520e4b87d22SRob Clark */ 521e4b87d22SRob Clark void msm_gem_unpin_iova_locked(struct drm_gem_object *obj, 522e4b87d22SRob Clark struct msm_gem_address_space *aspace) 523e4b87d22SRob Clark { 524e4b87d22SRob Clark struct msm_gem_vma *vma; 525e4b87d22SRob Clark 526e4b87d22SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 527e4b87d22SRob Clark 528e4b87d22SRob Clark vma = lookup_vma(obj, aspace); 529e4b87d22SRob Clark 530e4b87d22SRob Clark if (!WARN_ON(!vma)) 531e4b87d22SRob Clark msm_gem_unmap_vma(aspace, vma); 532e4b87d22SRob Clark } 533e4b87d22SRob Clark 534e4b87d22SRob Clark /* 5357ad0e8cfSJordan Crouse * Unpin a iova by updating the reference counts. The memory isn't actually 5367ad0e8cfSJordan Crouse * purged until something else (shrinker, mm_notifier, destroy, etc) decides 5377ad0e8cfSJordan Crouse * to get rid of it 5387ad0e8cfSJordan Crouse */ 5397ad0e8cfSJordan Crouse void msm_gem_unpin_iova(struct drm_gem_object *obj, 5408bdcd949SRob Clark struct msm_gem_address_space *aspace) 541c8afe684SRob Clark { 542a6ae74c9SRob Clark msm_gem_lock(obj); 543e4b87d22SRob Clark msm_gem_unpin_iova_locked(obj, aspace); 544a6ae74c9SRob Clark msm_gem_unlock(obj); 545c8afe684SRob Clark } 546c8afe684SRob Clark 547c8afe684SRob Clark int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 548c8afe684SRob Clark struct drm_mode_create_dumb *args) 549c8afe684SRob Clark { 550c8afe684SRob Clark args->pitch = align_pitch(args->width, args->bpp); 551c8afe684SRob Clark args->size = PAGE_ALIGN(args->pitch * args->height); 552c8afe684SRob Clark return msm_gem_new_handle(dev, file, args->size, 5530815d774SJordan Crouse MSM_BO_SCANOUT | MSM_BO_WC, &args->handle, "dumb"); 554c8afe684SRob Clark } 555c8afe684SRob Clark 556c8afe684SRob Clark int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 557c8afe684SRob Clark uint32_t handle, uint64_t *offset) 558c8afe684SRob Clark { 559c8afe684SRob Clark struct drm_gem_object *obj; 560c8afe684SRob Clark int ret = 0; 561c8afe684SRob Clark 562c8afe684SRob Clark /* GEM does all our handle to object mapping */ 563a8ad0bd8SChris Wilson obj = drm_gem_object_lookup(file, handle); 564c8afe684SRob Clark if (obj == NULL) { 565c8afe684SRob Clark ret = -ENOENT; 566c8afe684SRob Clark goto fail; 567c8afe684SRob Clark } 568c8afe684SRob Clark 569c8afe684SRob Clark *offset = msm_gem_mmap_offset(obj); 570c8afe684SRob Clark 571f7d33950SEmil Velikov drm_gem_object_put(obj); 572c8afe684SRob Clark 573c8afe684SRob Clark fail: 574c8afe684SRob Clark return ret; 575c8afe684SRob Clark } 576c8afe684SRob Clark 577fad33f4bSRob Clark static void *get_vaddr(struct drm_gem_object *obj, unsigned madv) 578c8afe684SRob Clark { 5790e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 5800e08270aSSushmita Susheelendra int ret = 0; 5810e08270aSSushmita Susheelendra 582e4b87d22SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 583e4b87d22SRob Clark 5848b6b7d84SDaniel Vetter if (obj->import_attach) 5858b6b7d84SDaniel Vetter return ERR_PTR(-ENODEV); 5868b6b7d84SDaniel Vetter 587fad33f4bSRob Clark if (WARN_ON(msm_obj->madv > madv)) { 5886a41da17SMamta Shukla DRM_DEV_ERROR(obj->dev->dev, "Invalid madv state: %u vs %u\n", 589fad33f4bSRob Clark msm_obj->madv, madv); 5900e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 591c8afe684SRob Clark } 592c8afe684SRob Clark 5930e08270aSSushmita Susheelendra /* increment vmap_count *before* vmap() call, so shrinker can 594a6ae74c9SRob Clark * check vmap_count (is_vunmapable()) outside of msm_obj lock. 5950e08270aSSushmita Susheelendra * This guarantees that we won't try to msm_gem_vunmap() this 5960e08270aSSushmita Susheelendra * same object from within the vmap() call (while we already 597a6ae74c9SRob Clark * hold msm_obj lock) 5980e08270aSSushmita Susheelendra */ 5990e08270aSSushmita Susheelendra msm_obj->vmap_count++; 6000e08270aSSushmita Susheelendra 6010e08270aSSushmita Susheelendra if (!msm_obj->vaddr) { 6020e08270aSSushmita Susheelendra struct page **pages = get_pages(obj); 6030e08270aSSushmita Susheelendra if (IS_ERR(pages)) { 6040e08270aSSushmita Susheelendra ret = PTR_ERR(pages); 6050e08270aSSushmita Susheelendra goto fail; 6060e08270aSSushmita Susheelendra } 6070e08270aSSushmita Susheelendra msm_obj->vaddr = vmap(pages, obj->size >> PAGE_SHIFT, 6080e08270aSSushmita Susheelendra VM_MAP, pgprot_writecombine(PAGE_KERNEL)); 6090e08270aSSushmita Susheelendra if (msm_obj->vaddr == NULL) { 6100e08270aSSushmita Susheelendra ret = -ENOMEM; 6110e08270aSSushmita Susheelendra goto fail; 6120e08270aSSushmita Susheelendra } 6130e08270aSSushmita Susheelendra } 6140e08270aSSushmita Susheelendra 6150e08270aSSushmita Susheelendra return msm_obj->vaddr; 6160e08270aSSushmita Susheelendra 6170e08270aSSushmita Susheelendra fail: 618e1e9db2cSRob Clark msm_obj->vmap_count--; 6190e08270aSSushmita Susheelendra return ERR_PTR(ret); 62018f23049SRob Clark } 62118f23049SRob Clark 622e4b87d22SRob Clark void *msm_gem_get_vaddr_locked(struct drm_gem_object *obj) 623e4b87d22SRob Clark { 624e4b87d22SRob Clark return get_vaddr(obj, MSM_MADV_WILLNEED); 625e4b87d22SRob Clark } 626e4b87d22SRob Clark 627fad33f4bSRob Clark void *msm_gem_get_vaddr(struct drm_gem_object *obj) 628fad33f4bSRob Clark { 629e4b87d22SRob Clark void *ret; 630e4b87d22SRob Clark 631e4b87d22SRob Clark msm_gem_lock(obj); 632e4b87d22SRob Clark ret = msm_gem_get_vaddr_locked(obj); 633e4b87d22SRob Clark msm_gem_unlock(obj); 634e4b87d22SRob Clark 635e4b87d22SRob Clark return ret; 636fad33f4bSRob Clark } 637fad33f4bSRob Clark 638fad33f4bSRob Clark /* 639fad33f4bSRob Clark * Don't use this! It is for the very special case of dumping 640fad33f4bSRob Clark * submits from GPU hangs or faults, were the bo may already 641fad33f4bSRob Clark * be MSM_MADV_DONTNEED, but we know the buffer is still on the 642fad33f4bSRob Clark * active list. 643fad33f4bSRob Clark */ 644fad33f4bSRob Clark void *msm_gem_get_vaddr_active(struct drm_gem_object *obj) 645fad33f4bSRob Clark { 646e4b87d22SRob Clark void *ret; 647e4b87d22SRob Clark 648e4b87d22SRob Clark msm_gem_lock(obj); 649e4b87d22SRob Clark ret = get_vaddr(obj, __MSM_MADV_PURGED); 650e4b87d22SRob Clark msm_gem_unlock(obj); 651e4b87d22SRob Clark 652e4b87d22SRob Clark return ret; 653e4b87d22SRob Clark } 654e4b87d22SRob Clark 655e4b87d22SRob Clark void msm_gem_put_vaddr_locked(struct drm_gem_object *obj) 656e4b87d22SRob Clark { 657e4b87d22SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 658e4b87d22SRob Clark 659e4b87d22SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 660e4b87d22SRob Clark WARN_ON(msm_obj->vmap_count < 1); 661e4b87d22SRob Clark 662e4b87d22SRob Clark msm_obj->vmap_count--; 663fad33f4bSRob Clark } 664fad33f4bSRob Clark 66518f23049SRob Clark void msm_gem_put_vaddr(struct drm_gem_object *obj) 66618f23049SRob Clark { 667a6ae74c9SRob Clark msm_gem_lock(obj); 668e4b87d22SRob Clark msm_gem_put_vaddr_locked(obj); 669a6ae74c9SRob Clark msm_gem_unlock(obj); 67018f23049SRob Clark } 67118f23049SRob Clark 6724cd33c48SRob Clark /* Update madvise status, returns true if not purged, else 6734cd33c48SRob Clark * false or -errno. 6744cd33c48SRob Clark */ 6754cd33c48SRob Clark int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv) 6764cd33c48SRob Clark { 6774cd33c48SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 6784cd33c48SRob Clark 679a6ae74c9SRob Clark msm_gem_lock(obj); 6800e08270aSSushmita Susheelendra 6814cd33c48SRob Clark WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex)); 6824cd33c48SRob Clark 6834cd33c48SRob Clark if (msm_obj->madv != __MSM_MADV_PURGED) 6844cd33c48SRob Clark msm_obj->madv = madv; 6854cd33c48SRob Clark 6860e08270aSSushmita Susheelendra madv = msm_obj->madv; 6870e08270aSSushmita Susheelendra 688a6ae74c9SRob Clark msm_gem_unlock(obj); 6890e08270aSSushmita Susheelendra 6900e08270aSSushmita Susheelendra return (madv != __MSM_MADV_PURGED); 6914cd33c48SRob Clark } 6924cd33c48SRob Clark 693*599089c6SRob Clark void msm_gem_purge(struct drm_gem_object *obj) 69468209390SRob Clark { 69568209390SRob Clark struct drm_device *dev = obj->dev; 69668209390SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 69768209390SRob Clark 69868209390SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 699*599089c6SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 70068209390SRob Clark WARN_ON(!is_purgeable(msm_obj)); 70168209390SRob Clark WARN_ON(obj->import_attach); 70268209390SRob Clark 70368209390SRob Clark put_iova(obj); 70468209390SRob Clark 705*599089c6SRob Clark msm_gem_vunmap(obj); 70668209390SRob Clark 70768209390SRob Clark put_pages(obj); 70868209390SRob Clark 70968209390SRob Clark msm_obj->madv = __MSM_MADV_PURGED; 71068209390SRob Clark 71168209390SRob Clark drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); 71268209390SRob Clark drm_gem_free_mmap_offset(obj); 71368209390SRob Clark 71468209390SRob Clark /* Our goal here is to return as much of the memory as 71568209390SRob Clark * is possible back to the system as we are called from OOM. 71668209390SRob Clark * To do this we must instruct the shmfs to drop all of its 71768209390SRob Clark * backing pages, *now*. 71868209390SRob Clark */ 71968209390SRob Clark shmem_truncate_range(file_inode(obj->filp), 0, (loff_t)-1); 72068209390SRob Clark 72168209390SRob Clark invalidate_mapping_pages(file_inode(obj->filp)->i_mapping, 72268209390SRob Clark 0, (loff_t)-1); 72368209390SRob Clark } 72468209390SRob Clark 725*599089c6SRob Clark void msm_gem_vunmap(struct drm_gem_object *obj) 726e1e9db2cSRob Clark { 727e1e9db2cSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 728e1e9db2cSRob Clark 729a6ae74c9SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 7300e08270aSSushmita Susheelendra 731e1e9db2cSRob Clark if (!msm_obj->vaddr || WARN_ON(!is_vunmapable(msm_obj))) 732e1e9db2cSRob Clark return; 733e1e9db2cSRob Clark 734e1e9db2cSRob Clark vunmap(msm_obj->vaddr); 735e1e9db2cSRob Clark msm_obj->vaddr = NULL; 736e1e9db2cSRob Clark } 737e1e9db2cSRob Clark 738b6295f9aSRob Clark /* must be called before _move_to_active().. */ 739b6295f9aSRob Clark int msm_gem_sync_object(struct drm_gem_object *obj, 740b6295f9aSRob Clark struct msm_fence_context *fctx, bool exclusive) 741b6295f9aSRob Clark { 74252791eeeSChristian König struct dma_resv_list *fobj; 743f54d1867SChris Wilson struct dma_fence *fence; 744b6295f9aSRob Clark int i, ret; 745b6295f9aSRob Clark 74652791eeeSChristian König fobj = dma_resv_get_list(obj->resv); 747b6295f9aSRob Clark if (!fobj || (fobj->shared_count == 0)) { 74852791eeeSChristian König fence = dma_resv_get_excl(obj->resv); 749b6295f9aSRob Clark /* don't need to wait on our own fences, since ring is fifo */ 750b6295f9aSRob Clark if (fence && (fence->context != fctx->context)) { 751f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 752b6295f9aSRob Clark if (ret) 753b6295f9aSRob Clark return ret; 754b6295f9aSRob Clark } 755b6295f9aSRob Clark } 756b6295f9aSRob Clark 757b6295f9aSRob Clark if (!exclusive || !fobj) 758b6295f9aSRob Clark return 0; 759b6295f9aSRob Clark 760b6295f9aSRob Clark for (i = 0; i < fobj->shared_count; i++) { 761b6295f9aSRob Clark fence = rcu_dereference_protected(fobj->shared[i], 76252791eeeSChristian König dma_resv_held(obj->resv)); 763b6295f9aSRob Clark if (fence->context != fctx->context) { 764f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 765b6295f9aSRob Clark if (ret) 766b6295f9aSRob Clark return ret; 767b6295f9aSRob Clark } 768b6295f9aSRob Clark } 769b6295f9aSRob Clark 770b6295f9aSRob Clark return 0; 771b6295f9aSRob Clark } 772b6295f9aSRob Clark 7739d8baa2bSAkhil P Oommen void msm_gem_active_get(struct drm_gem_object *obj, struct msm_gpu *gpu) 7747198e6b0SRob Clark { 7757198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 7769d8baa2bSAkhil P Oommen WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex)); 7774cd33c48SRob Clark WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED); 7789d8baa2bSAkhil P Oommen 7799d8baa2bSAkhil P Oommen if (!atomic_fetch_inc(&msm_obj->active_count)) { 7807198e6b0SRob Clark msm_obj->gpu = gpu; 7817198e6b0SRob Clark list_del_init(&msm_obj->mm_list); 7827198e6b0SRob Clark list_add_tail(&msm_obj->mm_list, &gpu->active_list); 7837198e6b0SRob Clark } 7849d8baa2bSAkhil P Oommen } 7857198e6b0SRob Clark 7869d8baa2bSAkhil P Oommen void msm_gem_active_put(struct drm_gem_object *obj) 7877198e6b0SRob Clark { 7887198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 7899d8baa2bSAkhil P Oommen struct msm_drm_private *priv = obj->dev->dev_private; 7907198e6b0SRob Clark 7919d8baa2bSAkhil P Oommen WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex)); 7927198e6b0SRob Clark 7939d8baa2bSAkhil P Oommen if (!atomic_dec_return(&msm_obj->active_count)) { 7947198e6b0SRob Clark msm_obj->gpu = NULL; 7957198e6b0SRob Clark list_del_init(&msm_obj->mm_list); 7967198e6b0SRob Clark list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 7977198e6b0SRob Clark } 7989d8baa2bSAkhil P Oommen } 7997198e6b0SRob Clark 800ba00c3f2SRob Clark int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout) 801ba00c3f2SRob Clark { 802b6295f9aSRob Clark bool write = !!(op & MSM_PREP_WRITE); 803f755e227SChris Wilson unsigned long remain = 804f755e227SChris Wilson op & MSM_PREP_NOSYNC ? 0 : timeout_to_jiffies(timeout); 805f755e227SChris Wilson long ret; 806b6295f9aSRob Clark 80752791eeeSChristian König ret = dma_resv_wait_timeout_rcu(obj->resv, write, 808f755e227SChris Wilson true, remain); 809f755e227SChris Wilson if (ret == 0) 810f755e227SChris Wilson return remain == 0 ? -EBUSY : -ETIMEDOUT; 811f755e227SChris Wilson else if (ret < 0) 812f755e227SChris Wilson return ret; 813ba00c3f2SRob Clark 8147198e6b0SRob Clark /* TODO cache maintenance */ 8157198e6b0SRob Clark 816b6295f9aSRob Clark return 0; 8177198e6b0SRob Clark } 8187198e6b0SRob Clark 8197198e6b0SRob Clark int msm_gem_cpu_fini(struct drm_gem_object *obj) 8207198e6b0SRob Clark { 8217198e6b0SRob Clark /* TODO cache maintenance */ 822c8afe684SRob Clark return 0; 823c8afe684SRob Clark } 824c8afe684SRob Clark 825c8afe684SRob Clark #ifdef CONFIG_DEBUG_FS 826f54d1867SChris Wilson static void describe_fence(struct dma_fence *fence, const char *type, 827b6295f9aSRob Clark struct seq_file *m) 828b6295f9aSRob Clark { 829f54d1867SChris Wilson if (!dma_fence_is_signaled(fence)) 830a3115621SDave Airlie seq_printf(m, "\t%9s: %s %s seq %llu\n", type, 831b6295f9aSRob Clark fence->ops->get_driver_name(fence), 832b6295f9aSRob Clark fence->ops->get_timeline_name(fence), 833b6295f9aSRob Clark fence->seqno); 834b6295f9aSRob Clark } 835b6295f9aSRob Clark 836c8afe684SRob Clark void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m) 837c8afe684SRob Clark { 838c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 83952791eeeSChristian König struct dma_resv *robj = obj->resv; 84052791eeeSChristian König struct dma_resv_list *fobj; 841f54d1867SChris Wilson struct dma_fence *fence; 8424b85f7f5SRob Clark struct msm_gem_vma *vma; 843c8afe684SRob Clark uint64_t off = drm_vma_node_start(&obj->vma_node); 8444cd33c48SRob Clark const char *madv; 845c8afe684SRob Clark 846a6ae74c9SRob Clark msm_gem_lock(obj); 847b6295f9aSRob Clark 8484cd33c48SRob Clark switch (msm_obj->madv) { 8494cd33c48SRob Clark case __MSM_MADV_PURGED: 8504cd33c48SRob Clark madv = " purged"; 8514cd33c48SRob Clark break; 8524cd33c48SRob Clark case MSM_MADV_DONTNEED: 8534cd33c48SRob Clark madv = " purgeable"; 8544cd33c48SRob Clark break; 8554cd33c48SRob Clark case MSM_MADV_WILLNEED: 8564cd33c48SRob Clark default: 8574cd33c48SRob Clark madv = ""; 8584cd33c48SRob Clark break; 8594cd33c48SRob Clark } 8604cd33c48SRob Clark 861575f0485SJordan Crouse seq_printf(m, "%08x: %c %2d (%2d) %08llx %p", 8627198e6b0SRob Clark msm_obj->flags, is_active(msm_obj) ? 'A' : 'I', 8632c935bc5SPeter Zijlstra obj->name, kref_read(&obj->refcount), 864667ce33eSRob Clark off, msm_obj->vaddr); 865667ce33eSRob Clark 8660815d774SJordan Crouse seq_printf(m, " %08zu %9s %-32s\n", obj->size, madv, msm_obj->name); 867667ce33eSRob Clark 868575f0485SJordan Crouse if (!list_empty(&msm_obj->vmas)) { 869575f0485SJordan Crouse 870575f0485SJordan Crouse seq_puts(m, " vmas:"); 871575f0485SJordan Crouse 87225faf2f2SRob Clark list_for_each_entry(vma, &msm_obj->vmas, list) { 87325faf2f2SRob Clark const char *name, *comm; 87425faf2f2SRob Clark if (vma->aspace) { 87525faf2f2SRob Clark struct msm_gem_address_space *aspace = vma->aspace; 87625faf2f2SRob Clark struct task_struct *task = 87725faf2f2SRob Clark get_pid_task(aspace->pid, PIDTYPE_PID); 87825faf2f2SRob Clark if (task) { 87925faf2f2SRob Clark comm = kstrdup(task->comm, GFP_KERNEL); 88025faf2f2SRob Clark } else { 88125faf2f2SRob Clark comm = NULL; 88225faf2f2SRob Clark } 88325faf2f2SRob Clark name = aspace->name; 88425faf2f2SRob Clark } else { 88525faf2f2SRob Clark name = comm = NULL; 88625faf2f2SRob Clark } 88725faf2f2SRob Clark seq_printf(m, " [%s%s%s: aspace=%p, %08llx,%s,inuse=%d]", 88825faf2f2SRob Clark name, comm ? ":" : "", comm ? comm : "", 88925faf2f2SRob Clark vma->aspace, vma->iova, 89025faf2f2SRob Clark vma->mapped ? "mapped" : "unmapped", 8917ad0e8cfSJordan Crouse vma->inuse); 89225faf2f2SRob Clark kfree(comm); 89325faf2f2SRob Clark } 894575f0485SJordan Crouse 895575f0485SJordan Crouse seq_puts(m, "\n"); 896575f0485SJordan Crouse } 897b6295f9aSRob Clark 898b6295f9aSRob Clark rcu_read_lock(); 899b6295f9aSRob Clark fobj = rcu_dereference(robj->fence); 900b6295f9aSRob Clark if (fobj) { 901b6295f9aSRob Clark unsigned int i, shared_count = fobj->shared_count; 902b6295f9aSRob Clark 903b6295f9aSRob Clark for (i = 0; i < shared_count; i++) { 904b6295f9aSRob Clark fence = rcu_dereference(fobj->shared[i]); 905b6295f9aSRob Clark describe_fence(fence, "Shared", m); 906b6295f9aSRob Clark } 907b6295f9aSRob Clark } 908b6295f9aSRob Clark 909b6295f9aSRob Clark fence = rcu_dereference(robj->fence_excl); 910b6295f9aSRob Clark if (fence) 911b6295f9aSRob Clark describe_fence(fence, "Exclusive", m); 912b6295f9aSRob Clark rcu_read_unlock(); 9130e08270aSSushmita Susheelendra 914a6ae74c9SRob Clark msm_gem_unlock(obj); 915c8afe684SRob Clark } 916c8afe684SRob Clark 917c8afe684SRob Clark void msm_gem_describe_objects(struct list_head *list, struct seq_file *m) 918c8afe684SRob Clark { 919c8afe684SRob Clark struct msm_gem_object *msm_obj; 920c8afe684SRob Clark int count = 0; 921c8afe684SRob Clark size_t size = 0; 922c8afe684SRob Clark 9230815d774SJordan Crouse seq_puts(m, " flags id ref offset kaddr size madv name\n"); 924c8afe684SRob Clark list_for_each_entry(msm_obj, list, mm_list) { 925c8afe684SRob Clark struct drm_gem_object *obj = &msm_obj->base; 926575f0485SJordan Crouse seq_puts(m, " "); 927c8afe684SRob Clark msm_gem_describe(obj, m); 928c8afe684SRob Clark count++; 929c8afe684SRob Clark size += obj->size; 930c8afe684SRob Clark } 931c8afe684SRob Clark 932c8afe684SRob Clark seq_printf(m, "Total %d objects, %zu bytes\n", count, size); 933c8afe684SRob Clark } 934c8afe684SRob Clark #endif 935c8afe684SRob Clark 936eecd7fd8SEmil Velikov /* don't call directly! Use drm_gem_object_put_locked() and friends */ 937c8afe684SRob Clark void msm_gem_free_object(struct drm_gem_object *obj) 938c8afe684SRob Clark { 939c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 94048e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 94148e7f183SKristian H. Kristensen struct msm_drm_private *priv = dev->dev_private; 94248e7f183SKristian H. Kristensen 94348e7f183SKristian H. Kristensen if (llist_add(&msm_obj->freed, &priv->free_list)) 94448e7f183SKristian H. Kristensen queue_work(priv->wq, &priv->free_work); 94548e7f183SKristian H. Kristensen } 94648e7f183SKristian H. Kristensen 94748e7f183SKristian H. Kristensen static void free_object(struct msm_gem_object *msm_obj) 94848e7f183SKristian H. Kristensen { 94948e7f183SKristian H. Kristensen struct drm_gem_object *obj = &msm_obj->base; 95048e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 951c8afe684SRob Clark 952c8afe684SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 953c8afe684SRob Clark 9547198e6b0SRob Clark /* object should not be on active list: */ 9557198e6b0SRob Clark WARN_ON(is_active(msm_obj)); 9567198e6b0SRob Clark 957c8afe684SRob Clark list_del(&msm_obj->mm_list); 958c8afe684SRob Clark 959a6ae74c9SRob Clark msm_gem_lock(obj); 9600e08270aSSushmita Susheelendra 9614fe5f65eSRob Clark put_iova(obj); 962c8afe684SRob Clark 96305b84911SRob Clark if (obj->import_attach) { 9648b6b7d84SDaniel Vetter WARN_ON(msm_obj->vaddr); 96505b84911SRob Clark 96605b84911SRob Clark /* Don't drop the pages for imported dmabuf, as they are not 96705b84911SRob Clark * ours, just free the array we allocated: 96805b84911SRob Clark */ 96905b84911SRob Clark if (msm_obj->pages) 9702098105eSMichal Hocko kvfree(msm_obj->pages); 97105b84911SRob Clark 972f28730c8Sjilai wang drm_prime_gem_destroy(obj, msm_obj->sgt); 97305b84911SRob Clark } else { 974*599089c6SRob Clark msm_gem_vunmap(obj); 975c8afe684SRob Clark put_pages(obj); 97605b84911SRob Clark } 977c8afe684SRob Clark 978c8afe684SRob Clark drm_gem_object_release(obj); 979c8afe684SRob Clark 980a6ae74c9SRob Clark msm_gem_unlock(obj); 981c8afe684SRob Clark kfree(msm_obj); 982c8afe684SRob Clark } 983c8afe684SRob Clark 98448e7f183SKristian H. Kristensen void msm_gem_free_work(struct work_struct *work) 98548e7f183SKristian H. Kristensen { 98648e7f183SKristian H. Kristensen struct msm_drm_private *priv = 98748e7f183SKristian H. Kristensen container_of(work, struct msm_drm_private, free_work); 98848e7f183SKristian H. Kristensen struct drm_device *dev = priv->dev; 98948e7f183SKristian H. Kristensen struct llist_node *freed; 99048e7f183SKristian H. Kristensen struct msm_gem_object *msm_obj, *next; 99148e7f183SKristian H. Kristensen 99248e7f183SKristian H. Kristensen while ((freed = llist_del_all(&priv->free_list))) { 99348e7f183SKristian H. Kristensen 99448e7f183SKristian H. Kristensen mutex_lock(&dev->struct_mutex); 99548e7f183SKristian H. Kristensen 99648e7f183SKristian H. Kristensen llist_for_each_entry_safe(msm_obj, next, 99748e7f183SKristian H. Kristensen freed, freed) 99848e7f183SKristian H. Kristensen free_object(msm_obj); 99948e7f183SKristian H. Kristensen 100048e7f183SKristian H. Kristensen mutex_unlock(&dev->struct_mutex); 100148e7f183SKristian H. Kristensen 100248e7f183SKristian H. Kristensen if (need_resched()) 100348e7f183SKristian H. Kristensen break; 100448e7f183SKristian H. Kristensen } 100548e7f183SKristian H. Kristensen } 100648e7f183SKristian H. Kristensen 1007c8afe684SRob Clark /* convenience method to construct a GEM buffer object, and userspace handle */ 1008c8afe684SRob Clark int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file, 10090815d774SJordan Crouse uint32_t size, uint32_t flags, uint32_t *handle, 10100815d774SJordan Crouse char *name) 1011c8afe684SRob Clark { 1012c8afe684SRob Clark struct drm_gem_object *obj; 1013c8afe684SRob Clark int ret; 1014c8afe684SRob Clark 1015c8afe684SRob Clark obj = msm_gem_new(dev, size, flags); 1016c8afe684SRob Clark 1017c8afe684SRob Clark if (IS_ERR(obj)) 1018c8afe684SRob Clark return PTR_ERR(obj); 1019c8afe684SRob Clark 10200815d774SJordan Crouse if (name) 10210815d774SJordan Crouse msm_gem_object_set_name(obj, "%s", name); 10220815d774SJordan Crouse 1023c8afe684SRob Clark ret = drm_gem_handle_create(file, obj, handle); 1024c8afe684SRob Clark 1025c8afe684SRob Clark /* drop reference from allocate - handle holds it now */ 1026f7d33950SEmil Velikov drm_gem_object_put(obj); 1027c8afe684SRob Clark 1028c8afe684SRob Clark return ret; 1029c8afe684SRob Clark } 1030c8afe684SRob Clark 103105b84911SRob Clark static int msm_gem_new_impl(struct drm_device *dev, 103205b84911SRob Clark uint32_t size, uint32_t flags, 10333cbdc8d8SAkhil P Oommen struct drm_gem_object **obj) 1034c8afe684SRob Clark { 1035c8afe684SRob Clark struct msm_gem_object *msm_obj; 1036c8afe684SRob Clark 1037c8afe684SRob Clark switch (flags & MSM_BO_CACHE_MASK) { 1038c8afe684SRob Clark case MSM_BO_UNCACHED: 1039c8afe684SRob Clark case MSM_BO_CACHED: 1040c8afe684SRob Clark case MSM_BO_WC: 1041c8afe684SRob Clark break; 1042c8afe684SRob Clark default: 10436a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "invalid cache flag: %x\n", 1044c8afe684SRob Clark (flags & MSM_BO_CACHE_MASK)); 104505b84911SRob Clark return -EINVAL; 1046c8afe684SRob Clark } 1047c8afe684SRob Clark 1048667ce33eSRob Clark msm_obj = kzalloc(sizeof(*msm_obj), GFP_KERNEL); 104905b84911SRob Clark if (!msm_obj) 105005b84911SRob Clark return -ENOMEM; 1051c8afe684SRob Clark 10520e08270aSSushmita Susheelendra mutex_init(&msm_obj->lock); 10530e08270aSSushmita Susheelendra 1054c8afe684SRob Clark msm_obj->flags = flags; 10554cd33c48SRob Clark msm_obj->madv = MSM_MADV_WILLNEED; 1056c8afe684SRob Clark 10577198e6b0SRob Clark INIT_LIST_HEAD(&msm_obj->submit_entry); 10584b85f7f5SRob Clark INIT_LIST_HEAD(&msm_obj->vmas); 10594b85f7f5SRob Clark 106005b84911SRob Clark *obj = &msm_obj->base; 106105b84911SRob Clark 106205b84911SRob Clark return 0; 106305b84911SRob Clark } 106405b84911SRob Clark 10650e08270aSSushmita Susheelendra static struct drm_gem_object *_msm_gem_new(struct drm_device *dev, 10660e08270aSSushmita Susheelendra uint32_t size, uint32_t flags, bool struct_mutex_locked) 106705b84911SRob Clark { 1068f4839bd5SRob Clark struct msm_drm_private *priv = dev->dev_private; 10693cbdc8d8SAkhil P Oommen struct msm_gem_object *msm_obj; 1070871d812aSRob Clark struct drm_gem_object *obj = NULL; 1071f4839bd5SRob Clark bool use_vram = false; 107205b84911SRob Clark int ret; 107305b84911SRob Clark 107405b84911SRob Clark size = PAGE_ALIGN(size); 107505b84911SRob Clark 1076c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) 1077f4839bd5SRob Clark use_vram = true; 107886f46f25SJonathan Marek else if ((flags & (MSM_BO_STOLEN | MSM_BO_SCANOUT)) && priv->vram.size) 1079f4839bd5SRob Clark use_vram = true; 1080f4839bd5SRob Clark 1081f4839bd5SRob Clark if (WARN_ON(use_vram && !priv->vram.size)) 1082f4839bd5SRob Clark return ERR_PTR(-EINVAL); 1083f4839bd5SRob Clark 10841a5dff5dSJordan Crouse /* Disallow zero sized objects as they make the underlying 10851a5dff5dSJordan Crouse * infrastructure grumpy 10861a5dff5dSJordan Crouse */ 10871a5dff5dSJordan Crouse if (size == 0) 10881a5dff5dSJordan Crouse return ERR_PTR(-EINVAL); 10891a5dff5dSJordan Crouse 10903cbdc8d8SAkhil P Oommen ret = msm_gem_new_impl(dev, size, flags, &obj); 109105b84911SRob Clark if (ret) 109205b84911SRob Clark goto fail; 109305b84911SRob Clark 10943cbdc8d8SAkhil P Oommen msm_obj = to_msm_bo(obj); 10953cbdc8d8SAkhil P Oommen 1096f4839bd5SRob Clark if (use_vram) { 10974b85f7f5SRob Clark struct msm_gem_vma *vma; 1098f4839bd5SRob Clark struct page **pages; 1099b3949a9aSHans Verkuil 1100a6ae74c9SRob Clark msm_gem_lock(obj); 1101f4839bd5SRob Clark 11024b85f7f5SRob Clark vma = add_vma(obj, NULL); 1103a6ae74c9SRob Clark msm_gem_unlock(obj); 11044b85f7f5SRob Clark if (IS_ERR(vma)) { 11054b85f7f5SRob Clark ret = PTR_ERR(vma); 11064b85f7f5SRob Clark goto fail; 11074b85f7f5SRob Clark } 11084b85f7f5SRob Clark 11094b85f7f5SRob Clark to_msm_bo(obj)->vram_node = &vma->node; 11104b85f7f5SRob Clark 1111f4839bd5SRob Clark drm_gem_private_object_init(dev, obj, size); 1112f4839bd5SRob Clark 1113f4839bd5SRob Clark pages = get_pages(obj); 1114f4839bd5SRob Clark if (IS_ERR(pages)) { 1115f4839bd5SRob Clark ret = PTR_ERR(pages); 1116f4839bd5SRob Clark goto fail; 1117f4839bd5SRob Clark } 11184b85f7f5SRob Clark 11194b85f7f5SRob Clark vma->iova = physaddr(obj); 1120f4839bd5SRob Clark } else { 112105b84911SRob Clark ret = drm_gem_object_init(dev, obj, size); 112205b84911SRob Clark if (ret) 112305b84911SRob Clark goto fail; 11240abdba47SLucas Stach /* 11250abdba47SLucas Stach * Our buffers are kept pinned, so allocating them from the 11260abdba47SLucas Stach * MOVABLE zone is a really bad idea, and conflicts with CMA. 11270abdba47SLucas Stach * See comments above new_inode() why this is required _and_ 11280abdba47SLucas Stach * expected if you're going to pin these pages. 11290abdba47SLucas Stach */ 11300abdba47SLucas Stach mapping_set_gfp_mask(obj->filp->f_mapping, GFP_HIGHUSER); 1131871d812aSRob Clark } 113205b84911SRob Clark 11333cbdc8d8SAkhil P Oommen if (struct_mutex_locked) { 11343cbdc8d8SAkhil P Oommen WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 11353cbdc8d8SAkhil P Oommen list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 11363cbdc8d8SAkhil P Oommen } else { 11373cbdc8d8SAkhil P Oommen mutex_lock(&dev->struct_mutex); 11383cbdc8d8SAkhil P Oommen list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 11393cbdc8d8SAkhil P Oommen mutex_unlock(&dev->struct_mutex); 11403cbdc8d8SAkhil P Oommen } 11413cbdc8d8SAkhil P Oommen 114205b84911SRob Clark return obj; 114305b84911SRob Clark 114405b84911SRob Clark fail: 1145f7d33950SEmil Velikov drm_gem_object_put(obj); 114605b84911SRob Clark return ERR_PTR(ret); 114705b84911SRob Clark } 114805b84911SRob Clark 11490e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev, 11500e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 11510e08270aSSushmita Susheelendra { 11520e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, true); 11530e08270aSSushmita Susheelendra } 11540e08270aSSushmita Susheelendra 11550e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new(struct drm_device *dev, 11560e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 11570e08270aSSushmita Susheelendra { 11580e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, false); 11590e08270aSSushmita Susheelendra } 11600e08270aSSushmita Susheelendra 116105b84911SRob Clark struct drm_gem_object *msm_gem_import(struct drm_device *dev, 116279f0e202SRob Clark struct dma_buf *dmabuf, struct sg_table *sgt) 116305b84911SRob Clark { 11643cbdc8d8SAkhil P Oommen struct msm_drm_private *priv = dev->dev_private; 116505b84911SRob Clark struct msm_gem_object *msm_obj; 116605b84911SRob Clark struct drm_gem_object *obj; 116779f0e202SRob Clark uint32_t size; 116805b84911SRob Clark int ret, npages; 116905b84911SRob Clark 1170871d812aSRob Clark /* if we don't have IOMMU, don't bother pretending we can import: */ 1171c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) { 11726a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "cannot import without IOMMU\n"); 1173871d812aSRob Clark return ERR_PTR(-EINVAL); 1174871d812aSRob Clark } 1175871d812aSRob Clark 117679f0e202SRob Clark size = PAGE_ALIGN(dmabuf->size); 117705b84911SRob Clark 11783cbdc8d8SAkhil P Oommen ret = msm_gem_new_impl(dev, size, MSM_BO_WC, &obj); 117905b84911SRob Clark if (ret) 118005b84911SRob Clark goto fail; 118105b84911SRob Clark 118205b84911SRob Clark drm_gem_private_object_init(dev, obj, size); 118305b84911SRob Clark 118405b84911SRob Clark npages = size / PAGE_SIZE; 118505b84911SRob Clark 118605b84911SRob Clark msm_obj = to_msm_bo(obj); 1187a6ae74c9SRob Clark msm_gem_lock(obj); 118805b84911SRob Clark msm_obj->sgt = sgt; 11892098105eSMichal Hocko msm_obj->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 119005b84911SRob Clark if (!msm_obj->pages) { 1191a6ae74c9SRob Clark msm_gem_unlock(obj); 119205b84911SRob Clark ret = -ENOMEM; 119305b84911SRob Clark goto fail; 119405b84911SRob Clark } 119505b84911SRob Clark 119605b84911SRob Clark ret = drm_prime_sg_to_page_addr_arrays(sgt, msm_obj->pages, NULL, npages); 11970e08270aSSushmita Susheelendra if (ret) { 1198a6ae74c9SRob Clark msm_gem_unlock(obj); 119905b84911SRob Clark goto fail; 12000e08270aSSushmita Susheelendra } 120105b84911SRob Clark 1202a6ae74c9SRob Clark msm_gem_unlock(obj); 12033cbdc8d8SAkhil P Oommen 12043cbdc8d8SAkhil P Oommen mutex_lock(&dev->struct_mutex); 12053cbdc8d8SAkhil P Oommen list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 12063cbdc8d8SAkhil P Oommen mutex_unlock(&dev->struct_mutex); 12073cbdc8d8SAkhil P Oommen 1208c8afe684SRob Clark return obj; 1209c8afe684SRob Clark 1210c8afe684SRob Clark fail: 1211f7d33950SEmil Velikov drm_gem_object_put(obj); 1212c8afe684SRob Clark return ERR_PTR(ret); 1213c8afe684SRob Clark } 12148223286dSJordan Crouse 12158223286dSJordan Crouse static void *_msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 12168223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 12178223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova, bool locked) 12188223286dSJordan Crouse { 12198223286dSJordan Crouse void *vaddr; 12208223286dSJordan Crouse struct drm_gem_object *obj = _msm_gem_new(dev, size, flags, locked); 12218223286dSJordan Crouse int ret; 12228223286dSJordan Crouse 12238223286dSJordan Crouse if (IS_ERR(obj)) 12248223286dSJordan Crouse return ERR_CAST(obj); 12258223286dSJordan Crouse 12268223286dSJordan Crouse if (iova) { 12279fe041f6SJordan Crouse ret = msm_gem_get_and_pin_iova(obj, aspace, iova); 122893f7abf1SJordan Crouse if (ret) 122993f7abf1SJordan Crouse goto err; 12308223286dSJordan Crouse } 12318223286dSJordan Crouse 12328223286dSJordan Crouse vaddr = msm_gem_get_vaddr(obj); 1233c9811d0fSWei Yongjun if (IS_ERR(vaddr)) { 12347ad0e8cfSJordan Crouse msm_gem_unpin_iova(obj, aspace); 123593f7abf1SJordan Crouse ret = PTR_ERR(vaddr); 123693f7abf1SJordan Crouse goto err; 12378223286dSJordan Crouse } 12388223286dSJordan Crouse 12398223286dSJordan Crouse if (bo) 12408223286dSJordan Crouse *bo = obj; 12418223286dSJordan Crouse 12428223286dSJordan Crouse return vaddr; 124393f7abf1SJordan Crouse err: 124493f7abf1SJordan Crouse if (locked) 1245eecd7fd8SEmil Velikov drm_gem_object_put_locked(obj); 124693f7abf1SJordan Crouse else 1247f7d33950SEmil Velikov drm_gem_object_put(obj); 124893f7abf1SJordan Crouse 124993f7abf1SJordan Crouse return ERR_PTR(ret); 125093f7abf1SJordan Crouse 12518223286dSJordan Crouse } 12528223286dSJordan Crouse 12538223286dSJordan Crouse void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 12548223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 12558223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 12568223286dSJordan Crouse { 12578223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, false); 12588223286dSJordan Crouse } 12598223286dSJordan Crouse 12608223286dSJordan Crouse void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size, 12618223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 12628223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 12638223286dSJordan Crouse { 12648223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, true); 12658223286dSJordan Crouse } 12661e29dff0SJordan Crouse 12671e29dff0SJordan Crouse void msm_gem_kernel_put(struct drm_gem_object *bo, 12681e29dff0SJordan Crouse struct msm_gem_address_space *aspace, bool locked) 12691e29dff0SJordan Crouse { 12701e29dff0SJordan Crouse if (IS_ERR_OR_NULL(bo)) 12711e29dff0SJordan Crouse return; 12721e29dff0SJordan Crouse 12731e29dff0SJordan Crouse msm_gem_put_vaddr(bo); 12747ad0e8cfSJordan Crouse msm_gem_unpin_iova(bo, aspace); 12751e29dff0SJordan Crouse 12761e29dff0SJordan Crouse if (locked) 1277eecd7fd8SEmil Velikov drm_gem_object_put_locked(bo); 12781e29dff0SJordan Crouse else 1279f7d33950SEmil Velikov drm_gem_object_put(bo); 12801e29dff0SJordan Crouse } 12810815d774SJordan Crouse 12820815d774SJordan Crouse void msm_gem_object_set_name(struct drm_gem_object *bo, const char *fmt, ...) 12830815d774SJordan Crouse { 12840815d774SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(bo); 12850815d774SJordan Crouse va_list ap; 12860815d774SJordan Crouse 12870815d774SJordan Crouse if (!fmt) 12880815d774SJordan Crouse return; 12890815d774SJordan Crouse 12900815d774SJordan Crouse va_start(ap, fmt); 12910815d774SJordan Crouse vsnprintf(msm_obj->name, sizeof(msm_obj->name), fmt, ap); 12920815d774SJordan Crouse va_end(ap); 12930815d774SJordan Crouse } 1294