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> 8f8546caaSYanteng Si #include <linux/vmalloc.h> 9c8afe684SRob Clark #include <linux/spinlock.h> 10c8afe684SRob Clark #include <linux/shmem_fs.h> 1105b84911SRob Clark #include <linux/dma-buf.h> 1201c8f1c4SDan Williams #include <linux/pfn_t.h> 13c8afe684SRob Clark 14feea39a8SSam Ravnborg #include <drm/drm_prime.h> 15feea39a8SSam Ravnborg 16c8afe684SRob Clark #include "msm_drv.h" 17fde5de6cSRob Clark #include "msm_fence.h" 18c8afe684SRob Clark #include "msm_gem.h" 197198e6b0SRob Clark #include "msm_gpu.h" 20871d812aSRob Clark #include "msm_mmu.h" 21c8afe684SRob Clark 22901df24dSRob Clark static void update_lru(struct drm_gem_object *obj); 230e08270aSSushmita Susheelendra 24871d812aSRob Clark static dma_addr_t physaddr(struct drm_gem_object *obj) 25871d812aSRob Clark { 26871d812aSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 27871d812aSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 28871d812aSRob Clark return (((dma_addr_t)msm_obj->vram_node->start) << PAGE_SHIFT) + 29871d812aSRob Clark priv->vram.paddr; 30871d812aSRob Clark } 31871d812aSRob Clark 32072f1f91SRob Clark static bool use_pages(struct drm_gem_object *obj) 33072f1f91SRob Clark { 34072f1f91SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 35072f1f91SRob Clark return !msm_obj->vram_node; 36072f1f91SRob Clark } 37072f1f91SRob Clark 383de433c5SRob Clark /* 393de433c5SRob Clark * Cache sync.. this is a bit over-complicated, to fit dma-mapping 403de433c5SRob Clark * API. Really GPU cache is out of scope here (handled on cmdstream) 413de433c5SRob Clark * and all we need to do is invalidate newly allocated pages before 423de433c5SRob Clark * mapping to CPU as uncached/writecombine. 433de433c5SRob Clark * 443de433c5SRob Clark * On top of this, we have the added headache, that depending on 453de433c5SRob Clark * display generation, the display's iommu may be wired up to either 463de433c5SRob Clark * the toplevel drm device (mdss), or to the mdp sub-node, meaning 473de433c5SRob Clark * that here we either have dma-direct or iommu ops. 483de433c5SRob Clark * 493de433c5SRob Clark * Let this be a cautionary tail of abstraction gone wrong. 503de433c5SRob Clark */ 513de433c5SRob Clark 523de433c5SRob Clark static void sync_for_device(struct msm_gem_object *msm_obj) 533de433c5SRob Clark { 543de433c5SRob Clark struct device *dev = msm_obj->base.dev->dev; 553de433c5SRob Clark 567690a33fSMarek Szyprowski dma_map_sgtable(dev, msm_obj->sgt, DMA_BIDIRECTIONAL, 0); 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 637690a33fSMarek Szyprowski dma_unmap_sgtable(dev, msm_obj->sgt, DMA_BIDIRECTIONAL, 0); 643de433c5SRob Clark } 653de433c5SRob Clark 66871d812aSRob Clark /* allocate pages from VRAM carveout, used when no IOMMU: */ 670e08270aSSushmita Susheelendra static struct page **get_pages_vram(struct drm_gem_object *obj, int npages) 68871d812aSRob Clark { 69871d812aSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 70871d812aSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 71871d812aSRob Clark dma_addr_t paddr; 72871d812aSRob Clark struct page **p; 73871d812aSRob Clark int ret, i; 74871d812aSRob Clark 752098105eSMichal Hocko p = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 76871d812aSRob Clark if (!p) 77871d812aSRob Clark return ERR_PTR(-ENOMEM); 78871d812aSRob Clark 790e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 804e64e553SChris Wilson ret = drm_mm_insert_node(&priv->vram.mm, msm_obj->vram_node, npages); 810e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 82871d812aSRob Clark if (ret) { 832098105eSMichal Hocko kvfree(p); 84871d812aSRob Clark return ERR_PTR(ret); 85871d812aSRob Clark } 86871d812aSRob Clark 87871d812aSRob Clark paddr = physaddr(obj); 88871d812aSRob Clark for (i = 0; i < npages; i++) { 89b3ed524fSChristian König p[i] = pfn_to_page(__phys_to_pfn(paddr)); 90871d812aSRob Clark paddr += PAGE_SIZE; 91871d812aSRob Clark } 92871d812aSRob Clark 93871d812aSRob Clark return p; 94871d812aSRob Clark } 95c8afe684SRob Clark 96c8afe684SRob Clark static struct page **get_pages(struct drm_gem_object *obj) 97c8afe684SRob Clark { 98c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 99c8afe684SRob Clark 100d4d7d363SRob Clark msm_gem_assert_locked(obj); 10107fcad0dSIskren Chernev 102c8afe684SRob Clark if (!msm_obj->pages) { 103c8afe684SRob Clark struct drm_device *dev = obj->dev; 104871d812aSRob Clark struct page **p; 105c8afe684SRob Clark int npages = obj->size >> PAGE_SHIFT; 106c8afe684SRob Clark 107072f1f91SRob Clark if (use_pages(obj)) 1080cdbe8acSDavid Herrmann p = drm_gem_get_pages(obj); 109871d812aSRob Clark else 110871d812aSRob Clark p = get_pages_vram(obj, npages); 111871d812aSRob Clark 112c8afe684SRob Clark if (IS_ERR(p)) { 1136a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not get pages: %ld\n", 114c8afe684SRob Clark PTR_ERR(p)); 115c8afe684SRob Clark return p; 116c8afe684SRob Clark } 117c8afe684SRob Clark 11862e3a3e3SPrakash Kamliya msm_obj->pages = p; 11962e3a3e3SPrakash Kamliya 120707d561fSGerd Hoffmann msm_obj->sgt = drm_prime_pages_to_sg(obj->dev, p, npages); 1211f70e079SWei Yongjun if (IS_ERR(msm_obj->sgt)) { 12262e3a3e3SPrakash Kamliya void *ptr = ERR_CAST(msm_obj->sgt); 123c8afe684SRob Clark 1246a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "failed to allocate sgt\n"); 12562e3a3e3SPrakash Kamliya msm_obj->sgt = NULL; 12662e3a3e3SPrakash Kamliya return ptr; 12762e3a3e3SPrakash Kamliya } 128c8afe684SRob Clark 129c8afe684SRob Clark /* For non-cached buffers, ensure the new pages are clean 130c8afe684SRob Clark * because display controller, GPU, etc. are not coherent: 131c8afe684SRob Clark */ 1328b5de735SRob Clark if (msm_obj->flags & MSM_BO_WC) 1333de433c5SRob Clark sync_for_device(msm_obj); 13464fcbde7SRob Clark 135901df24dSRob Clark update_lru(obj); 136c8afe684SRob Clark } 137c8afe684SRob Clark 138c8afe684SRob Clark return msm_obj->pages; 139c8afe684SRob Clark } 140c8afe684SRob Clark 1410e08270aSSushmita Susheelendra static void put_pages_vram(struct drm_gem_object *obj) 1420e08270aSSushmita Susheelendra { 1430e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 1440e08270aSSushmita Susheelendra struct msm_drm_private *priv = obj->dev->dev_private; 1450e08270aSSushmita Susheelendra 1460e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 1470e08270aSSushmita Susheelendra drm_mm_remove_node(msm_obj->vram_node); 1480e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 1490e08270aSSushmita Susheelendra 1500e08270aSSushmita Susheelendra kvfree(msm_obj->pages); 1510e08270aSSushmita Susheelendra } 1520e08270aSSushmita Susheelendra 153c8afe684SRob Clark static void put_pages(struct drm_gem_object *obj) 154c8afe684SRob Clark { 155c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 156c8afe684SRob Clark 157c8afe684SRob Clark if (msm_obj->pages) { 1583976626eSBen Hutchings if (msm_obj->sgt) { 1593976626eSBen Hutchings /* For non-cached buffers, ensure the new 1603976626eSBen Hutchings * pages are clean because display controller, 1613976626eSBen Hutchings * GPU, etc. are not coherent: 162c8afe684SRob Clark */ 1638b5de735SRob Clark if (msm_obj->flags & MSM_BO_WC) 1643de433c5SRob Clark sync_for_cpu(msm_obj); 16562e3a3e3SPrakash Kamliya 166c8afe684SRob Clark sg_free_table(msm_obj->sgt); 167c8afe684SRob Clark kfree(msm_obj->sgt); 168b9a31d0dSRob Clark msm_obj->sgt = NULL; 1693976626eSBen Hutchings } 170c8afe684SRob Clark 171072f1f91SRob Clark if (use_pages(obj)) 172c8afe684SRob Clark drm_gem_put_pages(obj, msm_obj->pages, true, false); 1730e08270aSSushmita Susheelendra else 1740e08270aSSushmita Susheelendra put_pages_vram(obj); 175871d812aSRob Clark 176c8afe684SRob Clark msm_obj->pages = NULL; 177b352ba54SRob Clark update_lru(obj); 178c8afe684SRob Clark } 179c8afe684SRob Clark } 180c8afe684SRob Clark 181e7cd5ee9SRob Clark static struct page **msm_gem_pin_pages_locked(struct drm_gem_object *obj) 18205b84911SRob Clark { 1830e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 18405b84911SRob Clark struct page **p; 1850e08270aSSushmita Susheelendra 186d4d7d363SRob Clark msm_gem_assert_locked(obj); 1870e08270aSSushmita Susheelendra 18890643a24SRob Clark if (GEM_WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 1890e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 1900e08270aSSushmita Susheelendra } 1910e08270aSSushmita Susheelendra 19205b84911SRob Clark p = get_pages(obj); 19310f76165SRob Clark if (!IS_ERR(p)) { 1949fd5ff7fSRob Clark to_msm_bo(obj)->pin_count++; 195901df24dSRob Clark update_lru(obj); 19610f76165SRob Clark } 19710f76165SRob Clark 19805b84911SRob Clark return p; 19905b84911SRob Clark } 20005b84911SRob Clark 201e7cd5ee9SRob Clark struct page **msm_gem_pin_pages(struct drm_gem_object *obj) 202e7cd5ee9SRob Clark { 203e7cd5ee9SRob Clark struct page **p; 204e7cd5ee9SRob Clark 205e7cd5ee9SRob Clark msm_gem_lock(obj); 206e7cd5ee9SRob Clark p = msm_gem_pin_pages_locked(obj); 207e7cd5ee9SRob Clark msm_gem_unlock(obj); 208e7cd5ee9SRob Clark 209e7cd5ee9SRob Clark return p; 210e7cd5ee9SRob Clark } 211e7cd5ee9SRob Clark 212e7cd5ee9SRob Clark void msm_gem_unpin_pages(struct drm_gem_object *obj) 21305b84911SRob Clark { 21410f76165SRob Clark msm_gem_lock(obj); 2159fd5ff7fSRob Clark msm_gem_unpin_locked(obj); 21610f76165SRob Clark msm_gem_unlock(obj); 21705b84911SRob Clark } 21805b84911SRob Clark 219af9b3547SJonathan Marek static pgprot_t msm_gem_pgprot(struct msm_gem_object *msm_obj, pgprot_t prot) 220af9b3547SJonathan Marek { 2218b5de735SRob Clark if (msm_obj->flags & MSM_BO_WC) 222af9b3547SJonathan Marek return pgprot_writecombine(prot); 223af9b3547SJonathan Marek return prot; 224af9b3547SJonathan Marek } 225af9b3547SJonathan Marek 2263c9edd9cSThomas Zimmermann static vm_fault_t msm_gem_fault(struct vm_fault *vmf) 227c8afe684SRob Clark { 22811bac800SDave Jiang struct vm_area_struct *vma = vmf->vma; 229c8afe684SRob Clark struct drm_gem_object *obj = vma->vm_private_data; 2300e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 231c8afe684SRob Clark struct page **pages; 232c8afe684SRob Clark unsigned long pfn; 233c8afe684SRob Clark pgoff_t pgoff; 234a5f74ec7SSouptick Joarder int err; 235a5f74ec7SSouptick Joarder vm_fault_t ret; 236c8afe684SRob Clark 2370e08270aSSushmita Susheelendra /* 2380e08270aSSushmita Susheelendra * vm_ops.open/drm_gem_mmap_obj and close get and put 2390e08270aSSushmita Susheelendra * a reference on obj. So, we dont need to hold one here. 240d78d383aSRob Clark */ 241a6ae74c9SRob Clark err = msm_gem_lock_interruptible(obj); 242a5f74ec7SSouptick Joarder if (err) { 243a5f74ec7SSouptick Joarder ret = VM_FAULT_NOPAGE; 244c8afe684SRob Clark goto out; 245a5f74ec7SSouptick Joarder } 246c8afe684SRob Clark 24790643a24SRob Clark if (GEM_WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 248a6ae74c9SRob Clark msm_gem_unlock(obj); 2490e08270aSSushmita Susheelendra return VM_FAULT_SIGBUS; 2500e08270aSSushmita Susheelendra } 2510e08270aSSushmita Susheelendra 252c8afe684SRob Clark /* make sure we have pages attached now */ 253c8afe684SRob Clark pages = get_pages(obj); 254c8afe684SRob Clark if (IS_ERR(pages)) { 255a5f74ec7SSouptick Joarder ret = vmf_error(PTR_ERR(pages)); 256c8afe684SRob Clark goto out_unlock; 257c8afe684SRob Clark } 258c8afe684SRob Clark 259c8afe684SRob Clark /* We don't use vmf->pgoff since that has the fake offset: */ 2601a29d85eSJan Kara pgoff = (vmf->address - vma->vm_start) >> PAGE_SHIFT; 261c8afe684SRob Clark 262871d812aSRob Clark pfn = page_to_pfn(pages[pgoff]); 263c8afe684SRob Clark 2641a29d85eSJan Kara VERB("Inserting %p pfn %lx, pa %lx", (void *)vmf->address, 265c8afe684SRob Clark pfn, pfn << PAGE_SHIFT); 266c8afe684SRob Clark 2678246913aSRob Clark ret = vmf_insert_pfn(vma, vmf->address, pfn); 2688246913aSRob Clark 269c8afe684SRob Clark out_unlock: 270a6ae74c9SRob Clark msm_gem_unlock(obj); 271c8afe684SRob Clark out: 272a5f74ec7SSouptick Joarder return ret; 273c8afe684SRob Clark } 274c8afe684SRob Clark 275c8afe684SRob Clark /** get mmap offset */ 276c8afe684SRob Clark static uint64_t mmap_offset(struct drm_gem_object *obj) 277c8afe684SRob Clark { 278c8afe684SRob Clark struct drm_device *dev = obj->dev; 279c8afe684SRob Clark int ret; 280c8afe684SRob Clark 281d4d7d363SRob Clark msm_gem_assert_locked(obj); 282c8afe684SRob Clark 283c8afe684SRob Clark /* Make it mmapable */ 284c8afe684SRob Clark ret = drm_gem_create_mmap_offset(obj); 285c8afe684SRob Clark 286c8afe684SRob Clark if (ret) { 2876a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not allocate mmap offset\n"); 288c8afe684SRob Clark return 0; 289c8afe684SRob Clark } 290c8afe684SRob Clark 291c8afe684SRob Clark return drm_vma_node_offset_addr(&obj->vma_node); 292c8afe684SRob Clark } 293c8afe684SRob Clark 294c8afe684SRob Clark uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj) 295c8afe684SRob Clark { 296c8afe684SRob Clark uint64_t offset; 2970e08270aSSushmita Susheelendra 298a6ae74c9SRob Clark msm_gem_lock(obj); 299c8afe684SRob Clark offset = mmap_offset(obj); 300a6ae74c9SRob Clark msm_gem_unlock(obj); 301c8afe684SRob Clark return offset; 302c8afe684SRob Clark } 303c8afe684SRob Clark 3044b85f7f5SRob Clark static struct msm_gem_vma *add_vma(struct drm_gem_object *obj, 3054b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3064b85f7f5SRob Clark { 3074b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3084b85f7f5SRob Clark struct msm_gem_vma *vma; 3094b85f7f5SRob Clark 310d4d7d363SRob Clark msm_gem_assert_locked(obj); 3110e08270aSSushmita Susheelendra 312fc2f0756SRob Clark vma = msm_gem_vma_new(aspace); 3134b85f7f5SRob Clark if (!vma) 3144b85f7f5SRob Clark return ERR_PTR(-ENOMEM); 3154b85f7f5SRob Clark 3164b85f7f5SRob Clark list_add_tail(&vma->list, &msm_obj->vmas); 3174b85f7f5SRob Clark 3184b85f7f5SRob Clark return vma; 3194b85f7f5SRob Clark } 3204b85f7f5SRob Clark 3214b85f7f5SRob Clark static struct msm_gem_vma *lookup_vma(struct drm_gem_object *obj, 3224b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3234b85f7f5SRob Clark { 3244b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3254b85f7f5SRob Clark struct msm_gem_vma *vma; 3264b85f7f5SRob Clark 327d4d7d363SRob Clark msm_gem_assert_locked(obj); 3284b85f7f5SRob Clark 3294b85f7f5SRob Clark list_for_each_entry(vma, &msm_obj->vmas, list) { 3304b85f7f5SRob Clark if (vma->aspace == aspace) 3314b85f7f5SRob Clark return vma; 3324b85f7f5SRob Clark } 3334b85f7f5SRob Clark 3344b85f7f5SRob Clark return NULL; 3354b85f7f5SRob Clark } 3364b85f7f5SRob Clark 3374b85f7f5SRob Clark static void del_vma(struct msm_gem_vma *vma) 3384b85f7f5SRob Clark { 3394b85f7f5SRob Clark if (!vma) 3404b85f7f5SRob Clark return; 3414b85f7f5SRob Clark 3424b85f7f5SRob Clark list_del(&vma->list); 3434b85f7f5SRob Clark kfree(vma); 3444b85f7f5SRob Clark } 3454b85f7f5SRob Clark 34637c68900SLee Jones /* 34720d0ae2fSRob Clark * If close is true, this also closes the VMA (releasing the allocated 34820d0ae2fSRob Clark * iova range) in addition to removing the iommu mapping. In the eviction 34920d0ae2fSRob Clark * case (!close), we keep the iova allocated, but only remove the iommu 35020d0ae2fSRob Clark * mapping. 35120d0ae2fSRob Clark */ 3524fe5f65eSRob Clark static void 35320d0ae2fSRob Clark put_iova_spaces(struct drm_gem_object *obj, bool close) 3544fe5f65eSRob Clark { 3554fe5f65eSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3569b73bde3SIskren Chernev struct msm_gem_vma *vma; 3574fe5f65eSRob Clark 358d4d7d363SRob Clark msm_gem_assert_locked(obj); 3594fe5f65eSRob Clark 3609b73bde3SIskren Chernev list_for_each_entry(vma, &msm_obj->vmas, list) { 361d67f1b6dSBrian Masney if (vma->aspace) { 362fc2f0756SRob Clark msm_gem_vma_purge(vma); 36320d0ae2fSRob Clark if (close) 364fc2f0756SRob Clark msm_gem_vma_close(vma); 365d67f1b6dSBrian Masney } 3669b73bde3SIskren Chernev } 3679b73bde3SIskren Chernev } 3689b73bde3SIskren Chernev 3699b73bde3SIskren Chernev /* Called with msm_obj locked */ 3709b73bde3SIskren Chernev static void 3719b73bde3SIskren Chernev put_iova_vmas(struct drm_gem_object *obj) 3724fe5f65eSRob Clark { 3734fe5f65eSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3744fe5f65eSRob Clark struct msm_gem_vma *vma, *tmp; 3754fe5f65eSRob Clark 376d4d7d363SRob Clark msm_gem_assert_locked(obj); 3774fe5f65eSRob Clark 3784b85f7f5SRob Clark list_for_each_entry_safe(vma, tmp, &msm_obj->vmas, list) { 3794b85f7f5SRob Clark del_vma(vma); 3804fe5f65eSRob Clark } 3814fe5f65eSRob Clark } 3824fe5f65eSRob Clark 383522f1abfSRob Clark static struct msm_gem_vma *get_vma_locked(struct drm_gem_object *obj, 384522f1abfSRob Clark struct msm_gem_address_space *aspace, 385d3b8877eSJonathan Marek u64 range_start, u64 range_end) 386c8afe684SRob Clark { 3874b85f7f5SRob Clark struct msm_gem_vma *vma; 388c8afe684SRob Clark 389d4d7d363SRob Clark msm_gem_assert_locked(obj); 390cb1e3818SRob Clark 3914b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 392871d812aSRob Clark 3934b85f7f5SRob Clark if (!vma) { 394522f1abfSRob Clark int ret; 395522f1abfSRob Clark 3964b85f7f5SRob Clark vma = add_vma(obj, aspace); 397c0ee9794SJordan Crouse if (IS_ERR(vma)) 398522f1abfSRob Clark return vma; 3994b85f7f5SRob Clark 400fc2f0756SRob Clark ret = msm_gem_vma_init(vma, obj->size, 401d3b8877eSJonathan Marek range_start, range_end); 402c0ee9794SJordan Crouse if (ret) { 403c0ee9794SJordan Crouse del_vma(vma); 404522f1abfSRob Clark return ERR_PTR(ret); 405c8afe684SRob Clark } 406522f1abfSRob Clark } else { 407522f1abfSRob Clark GEM_WARN_ON(vma->iova < range_start); 408522f1abfSRob Clark GEM_WARN_ON((vma->iova + obj->size) > range_end); 4094b85f7f5SRob Clark } 4104b85f7f5SRob Clark 411522f1abfSRob Clark return vma; 412c0ee9794SJordan Crouse } 4134b85f7f5SRob Clark 41427674c66SRob Clark int msm_gem_pin_vma_locked(struct drm_gem_object *obj, struct msm_gem_vma *vma) 415c0ee9794SJordan Crouse { 416c0ee9794SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 417c0ee9794SJordan Crouse struct page **pages; 41864fcbde7SRob Clark int ret, prot = IOMMU_READ; 419bbc2cd07SRob Clark 420bbc2cd07SRob Clark if (!(msm_obj->flags & MSM_BO_GPU_READONLY)) 421bbc2cd07SRob Clark prot |= IOMMU_WRITE; 422c0ee9794SJordan Crouse 4230b462d7aSJonathan Marek if (msm_obj->flags & MSM_BO_MAP_PRIV) 4240b462d7aSJonathan Marek prot |= IOMMU_PRIV; 4250b462d7aSJonathan Marek 426d12e3390SJonathan Marek if (msm_obj->flags & MSM_BO_CACHED_COHERENT) 427d12e3390SJonathan Marek prot |= IOMMU_CACHE; 428d12e3390SJonathan Marek 429d4d7d363SRob Clark msm_gem_assert_locked(obj); 430c0ee9794SJordan Crouse 43190643a24SRob Clark if (GEM_WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) 432c0ee9794SJordan Crouse return -EBUSY; 433c0ee9794SJordan Crouse 4349fd5ff7fSRob Clark pages = msm_gem_pin_pages_locked(obj); 435c0ee9794SJordan Crouse if (IS_ERR(pages)) 436c0ee9794SJordan Crouse return PTR_ERR(pages); 437c0ee9794SJordan Crouse 438fc2f0756SRob Clark ret = msm_gem_vma_map(vma, prot, msm_obj->sgt, obj->size); 4399fd5ff7fSRob Clark if (ret) 4409fd5ff7fSRob Clark msm_gem_unpin_locked(obj); 44164fcbde7SRob Clark 44264fcbde7SRob Clark return ret; 443c0ee9794SJordan Crouse } 444c0ee9794SJordan Crouse 445311e03c2SRob Clark void msm_gem_unpin_locked(struct drm_gem_object *obj) 44627674c66SRob Clark { 44727674c66SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 44827674c66SRob Clark 449d4d7d363SRob Clark msm_gem_assert_locked(obj); 45027674c66SRob Clark 45127674c66SRob Clark msm_obj->pin_count--; 45227674c66SRob Clark GEM_WARN_ON(msm_obj->pin_count < 0); 45327674c66SRob Clark 454901df24dSRob Clark update_lru(obj); 45527674c66SRob Clark } 45627674c66SRob Clark 45727674c66SRob Clark struct msm_gem_vma *msm_gem_get_vma_locked(struct drm_gem_object *obj, 45827674c66SRob Clark struct msm_gem_address_space *aspace) 45927674c66SRob Clark { 46027674c66SRob Clark return get_vma_locked(obj, aspace, 0, U64_MAX); 46127674c66SRob Clark } 46227674c66SRob Clark 463e4b87d22SRob Clark static int get_and_pin_iova_range_locked(struct drm_gem_object *obj, 464d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova, 465d3b8877eSJonathan Marek u64 range_start, u64 range_end) 466c0ee9794SJordan Crouse { 467522f1abfSRob Clark struct msm_gem_vma *vma; 468c0ee9794SJordan Crouse int ret; 469c0ee9794SJordan Crouse 470d4d7d363SRob Clark msm_gem_assert_locked(obj); 471c0ee9794SJordan Crouse 472522f1abfSRob Clark vma = get_vma_locked(obj, aspace, range_start, range_end); 473522f1abfSRob Clark if (IS_ERR(vma)) 474522f1abfSRob Clark return PTR_ERR(vma); 475c0ee9794SJordan Crouse 47627674c66SRob Clark ret = msm_gem_pin_vma_locked(obj, vma); 477c0ee9794SJordan Crouse if (!ret) 478522f1abfSRob Clark *iova = vma->iova; 479c0ee9794SJordan Crouse 480c8afe684SRob Clark return ret; 481c8afe684SRob Clark } 482c8afe684SRob Clark 483e4b87d22SRob Clark /* 484e4b87d22SRob Clark * get iova and pin it. Should have a matching put 485e4b87d22SRob Clark * limits iova to specified range (in pages) 486e4b87d22SRob Clark */ 487e4b87d22SRob Clark int msm_gem_get_and_pin_iova_range(struct drm_gem_object *obj, 488e4b87d22SRob Clark struct msm_gem_address_space *aspace, uint64_t *iova, 489e4b87d22SRob Clark u64 range_start, u64 range_end) 490e4b87d22SRob Clark { 491e4b87d22SRob Clark int ret; 492e4b87d22SRob Clark 493e4b87d22SRob Clark msm_gem_lock(obj); 494e4b87d22SRob Clark ret = get_and_pin_iova_range_locked(obj, aspace, iova, range_start, range_end); 495e4b87d22SRob Clark msm_gem_unlock(obj); 496e4b87d22SRob Clark 497e4b87d22SRob Clark return ret; 498e4b87d22SRob Clark } 499e4b87d22SRob Clark 500d3b8877eSJonathan Marek /* get iova and pin it. Should have a matching put */ 501d3b8877eSJonathan Marek int msm_gem_get_and_pin_iova(struct drm_gem_object *obj, 502d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova) 503d3b8877eSJonathan Marek { 504d3b8877eSJonathan Marek return msm_gem_get_and_pin_iova_range(obj, aspace, iova, 0, U64_MAX); 505d3b8877eSJonathan Marek } 506d3b8877eSJonathan Marek 5077ad0e8cfSJordan Crouse /* 5087ad0e8cfSJordan Crouse * Get an iova but don't pin it. Doesn't need a put because iovas are currently 5097ad0e8cfSJordan Crouse * valid for the life of the object 5107ad0e8cfSJordan Crouse */ 5119fe041f6SJordan Crouse int msm_gem_get_iova(struct drm_gem_object *obj, 5129fe041f6SJordan Crouse struct msm_gem_address_space *aspace, uint64_t *iova) 5139fe041f6SJordan Crouse { 514522f1abfSRob Clark struct msm_gem_vma *vma; 515522f1abfSRob Clark int ret = 0; 5169fe041f6SJordan Crouse 517a6ae74c9SRob Clark msm_gem_lock(obj); 518522f1abfSRob Clark vma = get_vma_locked(obj, aspace, 0, U64_MAX); 519522f1abfSRob Clark if (IS_ERR(vma)) { 520522f1abfSRob Clark ret = PTR_ERR(vma); 521522f1abfSRob Clark } else { 522522f1abfSRob Clark *iova = vma->iova; 523522f1abfSRob Clark } 524a6ae74c9SRob Clark msm_gem_unlock(obj); 5259fe041f6SJordan Crouse 5269fe041f6SJordan Crouse return ret; 5279fe041f6SJordan Crouse } 5289fe041f6SJordan Crouse 529a636a0ffSRob Clark static int clear_iova(struct drm_gem_object *obj, 5308bdcd949SRob Clark struct msm_gem_address_space *aspace) 5312638d90aSRob Clark { 532a636a0ffSRob Clark struct msm_gem_vma *vma = lookup_vma(obj, aspace); 5334b85f7f5SRob Clark 534a636a0ffSRob Clark if (!vma) 535a636a0ffSRob Clark return 0; 5364b85f7f5SRob Clark 537a636a0ffSRob Clark if (msm_gem_vma_inuse(vma)) 538a636a0ffSRob Clark return -EBUSY; 539a636a0ffSRob Clark 540fc2f0756SRob Clark msm_gem_vma_purge(vma); 541fc2f0756SRob Clark msm_gem_vma_close(vma); 542a636a0ffSRob Clark del_vma(vma); 543a636a0ffSRob Clark 544a636a0ffSRob Clark return 0; 5452638d90aSRob Clark } 5462638d90aSRob Clark 5477ad0e8cfSJordan Crouse /* 548a636a0ffSRob Clark * Get the requested iova but don't pin it. Fails if the requested iova is 549a636a0ffSRob Clark * not available. Doesn't need a put because iovas are currently valid for 550a636a0ffSRob Clark * the life of the object. 551a636a0ffSRob Clark * 552a636a0ffSRob Clark * Setting an iova of zero will clear the vma. 553e4b87d22SRob Clark */ 554a636a0ffSRob Clark int msm_gem_set_iova(struct drm_gem_object *obj, 555a636a0ffSRob Clark struct msm_gem_address_space *aspace, uint64_t iova) 556e4b87d22SRob Clark { 557a636a0ffSRob Clark int ret = 0; 558a636a0ffSRob Clark 559a636a0ffSRob Clark msm_gem_lock(obj); 560a636a0ffSRob Clark if (!iova) { 561a636a0ffSRob Clark ret = clear_iova(obj, aspace); 562a636a0ffSRob Clark } else { 563e4b87d22SRob Clark struct msm_gem_vma *vma; 564a636a0ffSRob Clark vma = get_vma_locked(obj, aspace, iova, iova + obj->size); 565a636a0ffSRob Clark if (IS_ERR(vma)) { 566a636a0ffSRob Clark ret = PTR_ERR(vma); 567a636a0ffSRob Clark } else if (GEM_WARN_ON(vma->iova != iova)) { 568a636a0ffSRob Clark clear_iova(obj, aspace); 569a636a0ffSRob Clark ret = -EBUSY; 57064fcbde7SRob Clark } 571e4b87d22SRob Clark } 572a636a0ffSRob Clark msm_gem_unlock(obj); 573a636a0ffSRob Clark 574a636a0ffSRob Clark return ret; 575a636a0ffSRob Clark } 576e4b87d22SRob Clark 577e4b87d22SRob Clark /* 5787ad0e8cfSJordan Crouse * Unpin a iova by updating the reference counts. The memory isn't actually 5797ad0e8cfSJordan Crouse * purged until something else (shrinker, mm_notifier, destroy, etc) decides 5807ad0e8cfSJordan Crouse * to get rid of it 5817ad0e8cfSJordan Crouse */ 5827ad0e8cfSJordan Crouse void msm_gem_unpin_iova(struct drm_gem_object *obj, 5838bdcd949SRob Clark struct msm_gem_address_space *aspace) 584c8afe684SRob Clark { 58527674c66SRob Clark struct msm_gem_vma *vma; 58627674c66SRob Clark 587a6ae74c9SRob Clark msm_gem_lock(obj); 58827674c66SRob Clark vma = lookup_vma(obj, aspace); 58927674c66SRob Clark if (!GEM_WARN_ON(!vma)) { 590fc2f0756SRob Clark msm_gem_vma_unpin(vma); 591311e03c2SRob Clark msm_gem_unpin_locked(obj); 59227674c66SRob Clark } 593a6ae74c9SRob Clark msm_gem_unlock(obj); 594c8afe684SRob Clark } 595c8afe684SRob Clark 596c8afe684SRob Clark int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 597c8afe684SRob Clark struct drm_mode_create_dumb *args) 598c8afe684SRob Clark { 599c8afe684SRob Clark args->pitch = align_pitch(args->width, args->bpp); 600c8afe684SRob Clark args->size = PAGE_ALIGN(args->pitch * args->height); 601c8afe684SRob Clark return msm_gem_new_handle(dev, file, args->size, 6020815d774SJordan Crouse MSM_BO_SCANOUT | MSM_BO_WC, &args->handle, "dumb"); 603c8afe684SRob Clark } 604c8afe684SRob Clark 605c8afe684SRob Clark int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 606c8afe684SRob Clark uint32_t handle, uint64_t *offset) 607c8afe684SRob Clark { 608c8afe684SRob Clark struct drm_gem_object *obj; 609c8afe684SRob Clark int ret = 0; 610c8afe684SRob Clark 611c8afe684SRob Clark /* GEM does all our handle to object mapping */ 612a8ad0bd8SChris Wilson obj = drm_gem_object_lookup(file, handle); 613c8afe684SRob Clark if (obj == NULL) { 614c8afe684SRob Clark ret = -ENOENT; 615c8afe684SRob Clark goto fail; 616c8afe684SRob Clark } 617c8afe684SRob Clark 618c8afe684SRob Clark *offset = msm_gem_mmap_offset(obj); 619c8afe684SRob Clark 620f7d33950SEmil Velikov drm_gem_object_put(obj); 621c8afe684SRob Clark 622c8afe684SRob Clark fail: 623c8afe684SRob Clark return ret; 624c8afe684SRob Clark } 625c8afe684SRob Clark 626fad33f4bSRob Clark static void *get_vaddr(struct drm_gem_object *obj, unsigned madv) 627c8afe684SRob Clark { 6280e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 629*d6ae7d1cSRob Clark struct page **pages; 6300e08270aSSushmita Susheelendra int ret = 0; 6310e08270aSSushmita Susheelendra 632d4d7d363SRob Clark msm_gem_assert_locked(obj); 633e4b87d22SRob Clark 6348b6b7d84SDaniel Vetter if (obj->import_attach) 6358b6b7d84SDaniel Vetter return ERR_PTR(-ENODEV); 6368b6b7d84SDaniel Vetter 63790643a24SRob Clark if (GEM_WARN_ON(msm_obj->madv > madv)) { 6386a41da17SMamta Shukla DRM_DEV_ERROR(obj->dev->dev, "Invalid madv state: %u vs %u\n", 639fad33f4bSRob Clark msm_obj->madv, madv); 6400e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 641c8afe684SRob Clark } 642c8afe684SRob Clark 643*d6ae7d1cSRob Clark pages = msm_gem_pin_pages_locked(obj); 644*d6ae7d1cSRob Clark if (IS_ERR(pages)) 645*d6ae7d1cSRob Clark return ERR_CAST(pages); 646*d6ae7d1cSRob Clark 6470e08270aSSushmita Susheelendra /* increment vmap_count *before* vmap() call, so shrinker can 648a6ae74c9SRob Clark * check vmap_count (is_vunmapable()) outside of msm_obj lock. 6490e08270aSSushmita Susheelendra * This guarantees that we won't try to msm_gem_vunmap() this 6500e08270aSSushmita Susheelendra * same object from within the vmap() call (while we already 651a6ae74c9SRob Clark * hold msm_obj lock) 6520e08270aSSushmita Susheelendra */ 6530e08270aSSushmita Susheelendra msm_obj->vmap_count++; 6540e08270aSSushmita Susheelendra 6550e08270aSSushmita Susheelendra if (!msm_obj->vaddr) { 6560e08270aSSushmita Susheelendra msm_obj->vaddr = vmap(pages, obj->size >> PAGE_SHIFT, 657af9b3547SJonathan Marek VM_MAP, msm_gem_pgprot(msm_obj, PAGE_KERNEL)); 6580e08270aSSushmita Susheelendra if (msm_obj->vaddr == NULL) { 6590e08270aSSushmita Susheelendra ret = -ENOMEM; 6600e08270aSSushmita Susheelendra goto fail; 6610e08270aSSushmita Susheelendra } 6620e08270aSSushmita Susheelendra } 6630e08270aSSushmita Susheelendra 6640e08270aSSushmita Susheelendra return msm_obj->vaddr; 6650e08270aSSushmita Susheelendra 6660e08270aSSushmita Susheelendra fail: 667e1e9db2cSRob Clark msm_obj->vmap_count--; 668*d6ae7d1cSRob Clark msm_gem_unpin_locked(obj); 6690e08270aSSushmita Susheelendra return ERR_PTR(ret); 67018f23049SRob Clark } 67118f23049SRob Clark 672e4b87d22SRob Clark void *msm_gem_get_vaddr_locked(struct drm_gem_object *obj) 673e4b87d22SRob Clark { 674e4b87d22SRob Clark return get_vaddr(obj, MSM_MADV_WILLNEED); 675e4b87d22SRob Clark } 676e4b87d22SRob Clark 677fad33f4bSRob Clark void *msm_gem_get_vaddr(struct drm_gem_object *obj) 678fad33f4bSRob Clark { 679e4b87d22SRob Clark void *ret; 680e4b87d22SRob Clark 681e4b87d22SRob Clark msm_gem_lock(obj); 682e4b87d22SRob Clark ret = msm_gem_get_vaddr_locked(obj); 683e4b87d22SRob Clark msm_gem_unlock(obj); 684e4b87d22SRob Clark 685e4b87d22SRob Clark return ret; 686fad33f4bSRob Clark } 687fad33f4bSRob Clark 688fad33f4bSRob Clark /* 689fad33f4bSRob Clark * Don't use this! It is for the very special case of dumping 690fad33f4bSRob Clark * submits from GPU hangs or faults, were the bo may already 691fad33f4bSRob Clark * be MSM_MADV_DONTNEED, but we know the buffer is still on the 692fad33f4bSRob Clark * active list. 693fad33f4bSRob Clark */ 694fad33f4bSRob Clark void *msm_gem_get_vaddr_active(struct drm_gem_object *obj) 695fad33f4bSRob Clark { 696fad33f4bSRob Clark return get_vaddr(obj, __MSM_MADV_PURGED); 697fad33f4bSRob Clark } 698fad33f4bSRob Clark 699e4b87d22SRob Clark void msm_gem_put_vaddr_locked(struct drm_gem_object *obj) 70018f23049SRob Clark { 7010e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 7020e08270aSSushmita Susheelendra 703d4d7d363SRob Clark msm_gem_assert_locked(obj); 70490643a24SRob Clark GEM_WARN_ON(msm_obj->vmap_count < 1); 705e4b87d22SRob Clark 7060e08270aSSushmita Susheelendra msm_obj->vmap_count--; 707*d6ae7d1cSRob Clark msm_gem_unpin_locked(obj); 7084cd33c48SRob Clark } 7090e08270aSSushmita Susheelendra 7100e08270aSSushmita Susheelendra void msm_gem_put_vaddr(struct drm_gem_object *obj) 7114cd33c48SRob Clark { 712a6ae74c9SRob Clark msm_gem_lock(obj); 713e4b87d22SRob Clark msm_gem_put_vaddr_locked(obj); 714a6ae74c9SRob Clark msm_gem_unlock(obj); 7154cd33c48SRob Clark } 7164cd33c48SRob Clark 7174cd33c48SRob Clark /* Update madvise status, returns true if not purged, else 7184cd33c48SRob Clark * false or -errno. 7194cd33c48SRob Clark */ 7204cd33c48SRob Clark int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv) 7214cd33c48SRob Clark { 7224cd33c48SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 72368209390SRob Clark 724a6ae74c9SRob Clark msm_gem_lock(obj); 725c8afe684SRob Clark 726c8afe684SRob Clark if (msm_obj->madv != __MSM_MADV_PURGED) 727c8afe684SRob Clark msm_obj->madv = madv; 728c8afe684SRob Clark 7290e08270aSSushmita Susheelendra madv = msm_obj->madv; 7300e08270aSSushmita Susheelendra 7313edfa30fSRob Clark /* If the obj is inactive, we might need to move it 7323edfa30fSRob Clark * between inactive lists 7333edfa30fSRob Clark */ 734901df24dSRob Clark update_lru(obj); 7353edfa30fSRob Clark 736a6ae74c9SRob Clark msm_gem_unlock(obj); 7370e08270aSSushmita Susheelendra 7380e08270aSSushmita Susheelendra return (madv != __MSM_MADV_PURGED); 739c8afe684SRob Clark } 740c8afe684SRob Clark 741599089c6SRob Clark void msm_gem_purge(struct drm_gem_object *obj) 74268209390SRob Clark { 74368209390SRob Clark struct drm_device *dev = obj->dev; 74468209390SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 74568209390SRob Clark 746d4d7d363SRob Clark msm_gem_assert_locked(obj); 74790643a24SRob Clark GEM_WARN_ON(!is_purgeable(msm_obj)); 74868209390SRob Clark 74920d0ae2fSRob Clark /* Get rid of any iommu mapping(s): */ 75020d0ae2fSRob Clark put_iova_spaces(obj, true); 7510e08270aSSushmita Susheelendra 752599089c6SRob Clark msm_gem_vunmap(obj); 75368209390SRob Clark 75481d4d597SRob Clark drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); 75581d4d597SRob Clark 75668209390SRob Clark put_pages(obj); 75768209390SRob Clark 7589b73bde3SIskren Chernev put_iova_vmas(obj); 7599b73bde3SIskren Chernev 76068209390SRob Clark msm_obj->madv = __MSM_MADV_PURGED; 76168209390SRob Clark 76268209390SRob Clark drm_gem_free_mmap_offset(obj); 76368209390SRob Clark 76468209390SRob Clark /* Our goal here is to return as much of the memory as 76568209390SRob Clark * is possible back to the system as we are called from OOM. 76668209390SRob Clark * To do this we must instruct the shmfs to drop all of its 76768209390SRob Clark * backing pages, *now*. 76868209390SRob Clark */ 76968209390SRob Clark shmem_truncate_range(file_inode(obj->filp), 0, (loff_t)-1); 77068209390SRob Clark 77168209390SRob Clark invalidate_mapping_pages(file_inode(obj->filp)->i_mapping, 77268209390SRob Clark 0, (loff_t)-1); 77368209390SRob Clark } 77468209390SRob Clark 77537c68900SLee Jones /* 77663f17ef8SRob Clark * Unpin the backing pages and make them available to be swapped out. 77763f17ef8SRob Clark */ 77863f17ef8SRob Clark void msm_gem_evict(struct drm_gem_object *obj) 77963f17ef8SRob Clark { 78063f17ef8SRob Clark struct drm_device *dev = obj->dev; 78163f17ef8SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 78263f17ef8SRob Clark 783d4d7d363SRob Clark msm_gem_assert_locked(obj); 78463f17ef8SRob Clark GEM_WARN_ON(is_unevictable(msm_obj)); 78563f17ef8SRob Clark 78663f17ef8SRob Clark /* Get rid of any iommu mapping(s): */ 78763f17ef8SRob Clark put_iova_spaces(obj, false); 78863f17ef8SRob Clark 78963f17ef8SRob Clark drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); 79063f17ef8SRob Clark 79163f17ef8SRob Clark put_pages(obj); 79263f17ef8SRob Clark } 79363f17ef8SRob Clark 794599089c6SRob Clark void msm_gem_vunmap(struct drm_gem_object *obj) 795e1e9db2cSRob Clark { 796e1e9db2cSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 797e1e9db2cSRob Clark 798d4d7d363SRob Clark msm_gem_assert_locked(obj); 7990e08270aSSushmita Susheelendra 80090643a24SRob Clark if (!msm_obj->vaddr || GEM_WARN_ON(!is_vunmapable(msm_obj))) 801e1e9db2cSRob Clark return; 802e1e9db2cSRob Clark 803e1e9db2cSRob Clark vunmap(msm_obj->vaddr); 804e1e9db2cSRob Clark msm_obj->vaddr = NULL; 805e1e9db2cSRob Clark } 806e1e9db2cSRob Clark 807901df24dSRob Clark static void update_lru(struct drm_gem_object *obj) 8083edfa30fSRob Clark { 809901df24dSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 810901df24dSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 8113edfa30fSRob Clark 812d4d7d363SRob Clark msm_gem_assert_locked(&msm_obj->base); 81364fcbde7SRob Clark 814b352ba54SRob Clark if (!msm_obj->pages) { 815b352ba54SRob Clark GEM_WARN_ON(msm_obj->pin_count); 8163edfa30fSRob Clark 817b352ba54SRob Clark drm_gem_lru_move_tail(&priv->lru.unbacked, obj); 818*d6ae7d1cSRob Clark } else if (msm_obj->pin_count) { 819b352ba54SRob Clark drm_gem_lru_move_tail(&priv->lru.pinned, obj); 820b352ba54SRob Clark } else if (msm_obj->madv == MSM_MADV_WILLNEED) { 821b352ba54SRob Clark drm_gem_lru_move_tail(&priv->lru.willneed, obj); 822cc8a4d5aSRob Clark } else { 823b352ba54SRob Clark GEM_WARN_ON(msm_obj->madv != MSM_MADV_DONTNEED); 8243edfa30fSRob Clark 825b352ba54SRob Clark drm_gem_lru_move_tail(&priv->lru.dontneed, obj); 826b352ba54SRob Clark } 8273edfa30fSRob Clark } 8283edfa30fSRob Clark 82901780d02SRob Clark bool msm_gem_active(struct drm_gem_object *obj) 83001780d02SRob Clark { 831d4d7d363SRob Clark msm_gem_assert_locked(obj); 83201780d02SRob Clark 83301780d02SRob Clark if (to_msm_bo(obj)->pin_count) 83401780d02SRob Clark return true; 83501780d02SRob Clark 83601780d02SRob Clark return !dma_resv_test_signaled(obj->resv, dma_resv_usage_rw(true)); 83701780d02SRob Clark } 83801780d02SRob Clark 839ba00c3f2SRob Clark int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout) 840ba00c3f2SRob Clark { 841b6295f9aSRob Clark bool write = !!(op & MSM_PREP_WRITE); 842f755e227SChris Wilson unsigned long remain = 843f755e227SChris Wilson op & MSM_PREP_NOSYNC ? 0 : timeout_to_jiffies(timeout); 844f755e227SChris Wilson long ret; 845b6295f9aSRob Clark 8467bc80a54SChristian König ret = dma_resv_wait_timeout(obj->resv, dma_resv_usage_rw(write), 8477bc80a54SChristian König true, remain); 848f755e227SChris Wilson if (ret == 0) 849f755e227SChris Wilson return remain == 0 ? -EBUSY : -ETIMEDOUT; 850f755e227SChris Wilson else if (ret < 0) 851f755e227SChris Wilson return ret; 852ba00c3f2SRob Clark 8537198e6b0SRob Clark /* TODO cache maintenance */ 8547198e6b0SRob Clark 855b6295f9aSRob Clark return 0; 8567198e6b0SRob Clark } 8577198e6b0SRob Clark 8587198e6b0SRob Clark int msm_gem_cpu_fini(struct drm_gem_object *obj) 8597198e6b0SRob Clark { 8607198e6b0SRob Clark /* TODO cache maintenance */ 861c8afe684SRob Clark return 0; 862c8afe684SRob Clark } 863c8afe684SRob Clark 864c8afe684SRob Clark #ifdef CONFIG_DEBUG_FS 865528107c8SRob Clark void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m, 866528107c8SRob Clark struct msm_gem_stats *stats) 867c8afe684SRob Clark { 868c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 86952791eeeSChristian König struct dma_resv *robj = obj->resv; 8704b85f7f5SRob Clark struct msm_gem_vma *vma; 871c8afe684SRob Clark uint64_t off = drm_vma_node_start(&obj->vma_node); 8724cd33c48SRob Clark const char *madv; 873c8afe684SRob Clark 874a6ae74c9SRob Clark msm_gem_lock(obj); 875b6295f9aSRob Clark 876528107c8SRob Clark stats->all.count++; 877528107c8SRob Clark stats->all.size += obj->size; 878528107c8SRob Clark 879da53d8b5SRob Clark if (msm_gem_active(obj)) { 880528107c8SRob Clark stats->active.count++; 881528107c8SRob Clark stats->active.size += obj->size; 882528107c8SRob Clark } 883528107c8SRob Clark 884f48f3563SRob Clark if (msm_obj->pages) { 885f48f3563SRob Clark stats->resident.count++; 886f48f3563SRob Clark stats->resident.size += obj->size; 887f48f3563SRob Clark } 888f48f3563SRob Clark 8894cd33c48SRob Clark switch (msm_obj->madv) { 8904cd33c48SRob Clark case __MSM_MADV_PURGED: 891528107c8SRob Clark stats->purged.count++; 892528107c8SRob Clark stats->purged.size += obj->size; 8934cd33c48SRob Clark madv = " purged"; 8944cd33c48SRob Clark break; 8954cd33c48SRob Clark case MSM_MADV_DONTNEED: 8960054eeb7SRob Clark stats->purgeable.count++; 8970054eeb7SRob Clark stats->purgeable.size += obj->size; 8984cd33c48SRob Clark madv = " purgeable"; 8994cd33c48SRob Clark break; 9004cd33c48SRob Clark case MSM_MADV_WILLNEED: 9014cd33c48SRob Clark default: 9024cd33c48SRob Clark madv = ""; 9034cd33c48SRob Clark break; 9044cd33c48SRob Clark } 9054cd33c48SRob Clark 906575f0485SJordan Crouse seq_printf(m, "%08x: %c %2d (%2d) %08llx %p", 907da53d8b5SRob Clark msm_obj->flags, msm_gem_active(obj) ? 'A' : 'I', 9082c935bc5SPeter Zijlstra obj->name, kref_read(&obj->refcount), 909667ce33eSRob Clark off, msm_obj->vaddr); 910667ce33eSRob Clark 9110815d774SJordan Crouse seq_printf(m, " %08zu %9s %-32s\n", obj->size, madv, msm_obj->name); 912667ce33eSRob Clark 913575f0485SJordan Crouse if (!list_empty(&msm_obj->vmas)) { 914575f0485SJordan Crouse 915575f0485SJordan Crouse seq_puts(m, " vmas:"); 916575f0485SJordan Crouse 91725faf2f2SRob Clark list_for_each_entry(vma, &msm_obj->vmas, list) { 91825faf2f2SRob Clark const char *name, *comm; 91925faf2f2SRob Clark if (vma->aspace) { 92025faf2f2SRob Clark struct msm_gem_address_space *aspace = vma->aspace; 92125faf2f2SRob Clark struct task_struct *task = 92225faf2f2SRob Clark get_pid_task(aspace->pid, PIDTYPE_PID); 92325faf2f2SRob Clark if (task) { 92425faf2f2SRob Clark comm = kstrdup(task->comm, GFP_KERNEL); 925ac3e4f42SRob Clark put_task_struct(task); 92625faf2f2SRob Clark } else { 92725faf2f2SRob Clark comm = NULL; 92825faf2f2SRob Clark } 92925faf2f2SRob Clark name = aspace->name; 93025faf2f2SRob Clark } else { 93125faf2f2SRob Clark name = comm = NULL; 93225faf2f2SRob Clark } 93325faf2f2SRob Clark seq_printf(m, " [%s%s%s: aspace=%p, %08llx,%s,inuse=%d]", 93425faf2f2SRob Clark name, comm ? ":" : "", comm ? comm : "", 93525faf2f2SRob Clark vma->aspace, vma->iova, 93625faf2f2SRob Clark vma->mapped ? "mapped" : "unmapped", 937ca35ab2aSRob Clark msm_gem_vma_inuse(vma)); 93825faf2f2SRob Clark kfree(comm); 93925faf2f2SRob Clark } 940575f0485SJordan Crouse 941575f0485SJordan Crouse seq_puts(m, "\n"); 942575f0485SJordan Crouse } 943b6295f9aSRob Clark 944f19ee2f3SChristian König dma_resv_describe(robj, m); 945a6ae74c9SRob Clark msm_gem_unlock(obj); 946c8afe684SRob Clark } 947c8afe684SRob Clark 948c8afe684SRob Clark void msm_gem_describe_objects(struct list_head *list, struct seq_file *m) 949c8afe684SRob Clark { 950528107c8SRob Clark struct msm_gem_stats stats = {}; 951c8afe684SRob Clark struct msm_gem_object *msm_obj; 952c8afe684SRob Clark 9530815d774SJordan Crouse seq_puts(m, " flags id ref offset kaddr size madv name\n"); 9546ed0897cSRob Clark list_for_each_entry(msm_obj, list, node) { 955c8afe684SRob Clark struct drm_gem_object *obj = &msm_obj->base; 956575f0485SJordan Crouse seq_puts(m, " "); 957528107c8SRob Clark msm_gem_describe(obj, m, &stats); 958c8afe684SRob Clark } 959c8afe684SRob Clark 960528107c8SRob Clark seq_printf(m, "Total: %4d objects, %9zu bytes\n", 961528107c8SRob Clark stats.all.count, stats.all.size); 962528107c8SRob Clark seq_printf(m, "Active: %4d objects, %9zu bytes\n", 963528107c8SRob Clark stats.active.count, stats.active.size); 964f48f3563SRob Clark seq_printf(m, "Resident: %4d objects, %9zu bytes\n", 965f48f3563SRob Clark stats.resident.count, stats.resident.size); 966f1902c6bSColin Ian King seq_printf(m, "Purgeable: %4d objects, %9zu bytes\n", 9670054eeb7SRob Clark stats.purgeable.count, stats.purgeable.size); 968528107c8SRob Clark seq_printf(m, "Purged: %4d objects, %9zu bytes\n", 969528107c8SRob Clark stats.purged.count, stats.purged.size); 970c8afe684SRob Clark } 971c8afe684SRob Clark #endif 972c8afe684SRob Clark 973030af2b0SRob Clark /* don't call directly! Use drm_gem_object_put() */ 9746867c9afSRob Clark static void msm_gem_free_object(struct drm_gem_object *obj) 975c8afe684SRob Clark { 976c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 97748e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 97848e7f183SKristian H. Kristensen struct msm_drm_private *priv = dev->dev_private; 97948e7f183SKristian H. Kristensen 9806ed0897cSRob Clark mutex_lock(&priv->obj_lock); 9816ed0897cSRob Clark list_del(&msm_obj->node); 9826ed0897cSRob Clark mutex_unlock(&priv->obj_lock); 9836ed0897cSRob Clark 98420d0ae2fSRob Clark put_iova_spaces(obj, true); 985c8afe684SRob Clark 98605b84911SRob Clark if (obj->import_attach) { 98790643a24SRob Clark GEM_WARN_ON(msm_obj->vaddr); 98805b84911SRob Clark 98905b84911SRob Clark /* Don't drop the pages for imported dmabuf, as they are not 99005b84911SRob Clark * ours, just free the array we allocated: 99105b84911SRob Clark */ 9922098105eSMichal Hocko kvfree(msm_obj->pages); 99305b84911SRob Clark 99457f04815SRob Clark put_iova_vmas(obj); 99557f04815SRob Clark 996f28730c8Sjilai wang drm_prime_gem_destroy(obj, msm_obj->sgt); 99705b84911SRob Clark } else { 998599089c6SRob Clark msm_gem_vunmap(obj); 999c8afe684SRob Clark put_pages(obj); 100057f04815SRob Clark put_iova_vmas(obj); 100105b84911SRob Clark } 1002c8afe684SRob Clark 1003c8afe684SRob Clark drm_gem_object_release(obj); 1004c8afe684SRob Clark 1005c8afe684SRob Clark kfree(msm_obj); 1006c8afe684SRob Clark } 1007c8afe684SRob Clark 1008510410bfSThomas Zimmermann static int msm_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) 1009510410bfSThomas Zimmermann { 1010510410bfSThomas Zimmermann struct msm_gem_object *msm_obj = to_msm_bo(obj); 1011510410bfSThomas Zimmermann 10121c71222eSSuren Baghdasaryan vm_flags_set(vma, VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP); 1013510410bfSThomas Zimmermann vma->vm_page_prot = msm_gem_pgprot(msm_obj, vm_get_page_prot(vma->vm_flags)); 1014510410bfSThomas Zimmermann 1015510410bfSThomas Zimmermann return 0; 1016510410bfSThomas Zimmermann } 1017510410bfSThomas Zimmermann 1018c8afe684SRob Clark /* convenience method to construct a GEM buffer object, and userspace handle */ 1019c8afe684SRob Clark int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file, 10200815d774SJordan Crouse uint32_t size, uint32_t flags, uint32_t *handle, 10210815d774SJordan Crouse char *name) 1022c8afe684SRob Clark { 1023c8afe684SRob Clark struct drm_gem_object *obj; 1024c8afe684SRob Clark int ret; 1025c8afe684SRob Clark 1026c8afe684SRob Clark obj = msm_gem_new(dev, size, flags); 1027c8afe684SRob Clark 1028c8afe684SRob Clark if (IS_ERR(obj)) 1029c8afe684SRob Clark return PTR_ERR(obj); 1030c8afe684SRob Clark 10310815d774SJordan Crouse if (name) 10320815d774SJordan Crouse msm_gem_object_set_name(obj, "%s", name); 10330815d774SJordan Crouse 1034c8afe684SRob Clark ret = drm_gem_handle_create(file, obj, handle); 1035c8afe684SRob Clark 1036c8afe684SRob Clark /* drop reference from allocate - handle holds it now */ 1037f7d33950SEmil Velikov drm_gem_object_put(obj); 1038c8afe684SRob Clark 1039c8afe684SRob Clark return ret; 1040c8afe684SRob Clark } 1041c8afe684SRob Clark 10423c9edd9cSThomas Zimmermann static const struct vm_operations_struct vm_ops = { 10433c9edd9cSThomas Zimmermann .fault = msm_gem_fault, 10443c9edd9cSThomas Zimmermann .open = drm_gem_vm_open, 10453c9edd9cSThomas Zimmermann .close = drm_gem_vm_close, 10463c9edd9cSThomas Zimmermann }; 10473c9edd9cSThomas Zimmermann 10483c9edd9cSThomas Zimmermann static const struct drm_gem_object_funcs msm_gem_object_funcs = { 10493c9edd9cSThomas Zimmermann .free = msm_gem_free_object, 10503c9edd9cSThomas Zimmermann .pin = msm_gem_prime_pin, 10513c9edd9cSThomas Zimmermann .unpin = msm_gem_prime_unpin, 10523c9edd9cSThomas Zimmermann .get_sg_table = msm_gem_prime_get_sg_table, 10533c9edd9cSThomas Zimmermann .vmap = msm_gem_prime_vmap, 10543c9edd9cSThomas Zimmermann .vunmap = msm_gem_prime_vunmap, 1055510410bfSThomas Zimmermann .mmap = msm_gem_object_mmap, 10563c9edd9cSThomas Zimmermann .vm_ops = &vm_ops, 10573c9edd9cSThomas Zimmermann }; 10583c9edd9cSThomas Zimmermann 105905b84911SRob Clark static int msm_gem_new_impl(struct drm_device *dev, 106005b84911SRob Clark uint32_t size, uint32_t flags, 10613cbdc8d8SAkhil P Oommen struct drm_gem_object **obj) 1062c8afe684SRob Clark { 1063d12e3390SJonathan Marek struct msm_drm_private *priv = dev->dev_private; 1064c8afe684SRob Clark struct msm_gem_object *msm_obj; 1065c8afe684SRob Clark 1066c8afe684SRob Clark switch (flags & MSM_BO_CACHE_MASK) { 1067c8afe684SRob Clark case MSM_BO_CACHED: 1068c8afe684SRob Clark case MSM_BO_WC: 1069c8afe684SRob Clark break; 1070d12e3390SJonathan Marek case MSM_BO_CACHED_COHERENT: 1071d12e3390SJonathan Marek if (priv->has_cached_coherent) 1072d12e3390SJonathan Marek break; 1073e181ad43SGustavo A. R. Silva fallthrough; 1074c8afe684SRob Clark default: 10752d1d175aSRob Clark DRM_DEV_DEBUG(dev->dev, "invalid cache flag: %x\n", 1076c8afe684SRob Clark (flags & MSM_BO_CACHE_MASK)); 107705b84911SRob Clark return -EINVAL; 1078c8afe684SRob Clark } 1079c8afe684SRob Clark 1080667ce33eSRob Clark msm_obj = kzalloc(sizeof(*msm_obj), GFP_KERNEL); 108105b84911SRob Clark if (!msm_obj) 108205b84911SRob Clark return -ENOMEM; 1083c8afe684SRob Clark 1084c8afe684SRob Clark msm_obj->flags = flags; 10854cd33c48SRob Clark msm_obj->madv = MSM_MADV_WILLNEED; 1086c8afe684SRob Clark 1087027d052aSDan Carpenter INIT_LIST_HEAD(&msm_obj->node); 10884b85f7f5SRob Clark INIT_LIST_HEAD(&msm_obj->vmas); 10894b85f7f5SRob Clark 109005b84911SRob Clark *obj = &msm_obj->base; 10913c9edd9cSThomas Zimmermann (*obj)->funcs = &msm_gem_object_funcs; 109205b84911SRob Clark 109305b84911SRob Clark return 0; 109405b84911SRob Clark } 109505b84911SRob Clark 1096030af2b0SRob Clark struct drm_gem_object *msm_gem_new(struct drm_device *dev, uint32_t size, uint32_t flags) 109705b84911SRob Clark { 1098f4839bd5SRob Clark struct msm_drm_private *priv = dev->dev_private; 10993cbdc8d8SAkhil P Oommen struct msm_gem_object *msm_obj; 1100871d812aSRob Clark struct drm_gem_object *obj = NULL; 1101f4839bd5SRob Clark bool use_vram = false; 110205b84911SRob Clark int ret; 110305b84911SRob Clark 110405b84911SRob Clark size = PAGE_ALIGN(size); 110505b84911SRob Clark 1106c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) 1107f4839bd5SRob Clark use_vram = true; 110886f46f25SJonathan Marek else if ((flags & (MSM_BO_STOLEN | MSM_BO_SCANOUT)) && priv->vram.size) 1109f4839bd5SRob Clark use_vram = true; 1110f4839bd5SRob Clark 111190643a24SRob Clark if (GEM_WARN_ON(use_vram && !priv->vram.size)) 1112f4839bd5SRob Clark return ERR_PTR(-EINVAL); 1113f4839bd5SRob Clark 11141a5dff5dSJordan Crouse /* Disallow zero sized objects as they make the underlying 11151a5dff5dSJordan Crouse * infrastructure grumpy 11161a5dff5dSJordan Crouse */ 11171a5dff5dSJordan Crouse if (size == 0) 11181a5dff5dSJordan Crouse return ERR_PTR(-EINVAL); 11191a5dff5dSJordan Crouse 11203cbdc8d8SAkhil P Oommen ret = msm_gem_new_impl(dev, size, flags, &obj); 112105b84911SRob Clark if (ret) 11222203bd0eSDan Carpenter return ERR_PTR(ret); 112305b84911SRob Clark 11243cbdc8d8SAkhil P Oommen msm_obj = to_msm_bo(obj); 11253cbdc8d8SAkhil P Oommen 1126f4839bd5SRob Clark if (use_vram) { 11274b85f7f5SRob Clark struct msm_gem_vma *vma; 1128f4839bd5SRob Clark struct page **pages; 1129b3949a9aSHans Verkuil 1130a694ffedSIskren Chernev drm_gem_private_object_init(dev, obj, size); 1131a694ffedSIskren Chernev 1132a6ae74c9SRob Clark msm_gem_lock(obj); 1133f4839bd5SRob Clark 11344b85f7f5SRob Clark vma = add_vma(obj, NULL); 1135a6ae74c9SRob Clark msm_gem_unlock(obj); 11364b85f7f5SRob Clark if (IS_ERR(vma)) { 11374b85f7f5SRob Clark ret = PTR_ERR(vma); 11384b85f7f5SRob Clark goto fail; 11394b85f7f5SRob Clark } 11404b85f7f5SRob Clark 11414b85f7f5SRob Clark to_msm_bo(obj)->vram_node = &vma->node; 11424b85f7f5SRob Clark 114307fcad0dSIskren Chernev msm_gem_lock(obj); 1144f4839bd5SRob Clark pages = get_pages(obj); 114507fcad0dSIskren Chernev msm_gem_unlock(obj); 1146f4839bd5SRob Clark if (IS_ERR(pages)) { 1147f4839bd5SRob Clark ret = PTR_ERR(pages); 1148f4839bd5SRob Clark goto fail; 1149f4839bd5SRob Clark } 11504b85f7f5SRob Clark 11514b85f7f5SRob Clark vma->iova = physaddr(obj); 1152f4839bd5SRob Clark } else { 115305b84911SRob Clark ret = drm_gem_object_init(dev, obj, size); 115405b84911SRob Clark if (ret) 115505b84911SRob Clark goto fail; 11560abdba47SLucas Stach /* 11570abdba47SLucas Stach * Our buffers are kept pinned, so allocating them from the 11580abdba47SLucas Stach * MOVABLE zone is a really bad idea, and conflicts with CMA. 11590abdba47SLucas Stach * See comments above new_inode() why this is required _and_ 11600abdba47SLucas Stach * expected if you're going to pin these pages. 11610abdba47SLucas Stach */ 11620abdba47SLucas Stach mapping_set_gfp_mask(obj->filp->f_mapping, GFP_HIGHUSER); 1163871d812aSRob Clark } 116405b84911SRob Clark 1165b352ba54SRob Clark drm_gem_lru_move_tail(&priv->lru.unbacked, obj); 11663cbdc8d8SAkhil P Oommen 11676ed0897cSRob Clark mutex_lock(&priv->obj_lock); 11686ed0897cSRob Clark list_add_tail(&msm_obj->node, &priv->objects); 11696ed0897cSRob Clark mutex_unlock(&priv->obj_lock); 11706ed0897cSRob Clark 117105b84911SRob Clark return obj; 117205b84911SRob Clark 117305b84911SRob Clark fail: 1174f7d33950SEmil Velikov drm_gem_object_put(obj); 117505b84911SRob Clark return ERR_PTR(ret); 117605b84911SRob Clark } 117705b84911SRob Clark 117805b84911SRob Clark struct drm_gem_object *msm_gem_import(struct drm_device *dev, 117979f0e202SRob Clark struct dma_buf *dmabuf, struct sg_table *sgt) 118005b84911SRob Clark { 11813cbdc8d8SAkhil P Oommen struct msm_drm_private *priv = dev->dev_private; 118205b84911SRob Clark struct msm_gem_object *msm_obj; 118305b84911SRob Clark struct drm_gem_object *obj; 118479f0e202SRob Clark uint32_t size; 118505b84911SRob Clark int ret, npages; 118605b84911SRob Clark 1187871d812aSRob Clark /* if we don't have IOMMU, don't bother pretending we can import: */ 1188c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) { 11896a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "cannot import without IOMMU\n"); 1190871d812aSRob Clark return ERR_PTR(-EINVAL); 1191871d812aSRob Clark } 1192871d812aSRob Clark 119379f0e202SRob Clark size = PAGE_ALIGN(dmabuf->size); 119405b84911SRob Clark 11953cbdc8d8SAkhil P Oommen ret = msm_gem_new_impl(dev, size, MSM_BO_WC, &obj); 119605b84911SRob Clark if (ret) 11972203bd0eSDan Carpenter return ERR_PTR(ret); 119805b84911SRob Clark 119905b84911SRob Clark drm_gem_private_object_init(dev, obj, size); 120005b84911SRob Clark 120105b84911SRob Clark npages = size / PAGE_SIZE; 120205b84911SRob Clark 120305b84911SRob Clark msm_obj = to_msm_bo(obj); 1204a6ae74c9SRob Clark msm_gem_lock(obj); 120505b84911SRob Clark msm_obj->sgt = sgt; 12062098105eSMichal Hocko msm_obj->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 120705b84911SRob Clark if (!msm_obj->pages) { 1208a6ae74c9SRob Clark msm_gem_unlock(obj); 120905b84911SRob Clark ret = -ENOMEM; 121005b84911SRob Clark goto fail; 121105b84911SRob Clark } 121205b84911SRob Clark 1213c67e6279SChristian König ret = drm_prime_sg_to_page_array(sgt, msm_obj->pages, npages); 12140e08270aSSushmita Susheelendra if (ret) { 1215a6ae74c9SRob Clark msm_gem_unlock(obj); 121605b84911SRob Clark goto fail; 12170e08270aSSushmita Susheelendra } 121805b84911SRob Clark 1219a6ae74c9SRob Clark msm_gem_unlock(obj); 12203cbdc8d8SAkhil P Oommen 1221b352ba54SRob Clark drm_gem_lru_move_tail(&priv->lru.pinned, obj); 12223cbdc8d8SAkhil P Oommen 12236ed0897cSRob Clark mutex_lock(&priv->obj_lock); 12246ed0897cSRob Clark list_add_tail(&msm_obj->node, &priv->objects); 12256ed0897cSRob Clark mutex_unlock(&priv->obj_lock); 12266ed0897cSRob Clark 1227c8afe684SRob Clark return obj; 1228c8afe684SRob Clark 1229c8afe684SRob Clark fail: 1230f7d33950SEmil Velikov drm_gem_object_put(obj); 1231c8afe684SRob Clark return ERR_PTR(ret); 1232c8afe684SRob Clark } 12338223286dSJordan Crouse 1234030af2b0SRob Clark void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 12358223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 1236030af2b0SRob Clark struct drm_gem_object **bo, uint64_t *iova) 12378223286dSJordan Crouse { 12388223286dSJordan Crouse void *vaddr; 1239030af2b0SRob Clark struct drm_gem_object *obj = msm_gem_new(dev, size, flags); 12408223286dSJordan Crouse int ret; 12418223286dSJordan Crouse 12428223286dSJordan Crouse if (IS_ERR(obj)) 12438223286dSJordan Crouse return ERR_CAST(obj); 12448223286dSJordan Crouse 12458223286dSJordan Crouse if (iova) { 12469fe041f6SJordan Crouse ret = msm_gem_get_and_pin_iova(obj, aspace, iova); 124793f7abf1SJordan Crouse if (ret) 124893f7abf1SJordan Crouse goto err; 12498223286dSJordan Crouse } 12508223286dSJordan Crouse 12518223286dSJordan Crouse vaddr = msm_gem_get_vaddr(obj); 1252c9811d0fSWei Yongjun if (IS_ERR(vaddr)) { 12537ad0e8cfSJordan Crouse msm_gem_unpin_iova(obj, aspace); 125493f7abf1SJordan Crouse ret = PTR_ERR(vaddr); 125593f7abf1SJordan Crouse goto err; 12568223286dSJordan Crouse } 12578223286dSJordan Crouse 12588223286dSJordan Crouse if (bo) 12598223286dSJordan Crouse *bo = obj; 12608223286dSJordan Crouse 12618223286dSJordan Crouse return vaddr; 126293f7abf1SJordan Crouse err: 1263f7d33950SEmil Velikov drm_gem_object_put(obj); 126493f7abf1SJordan Crouse 126593f7abf1SJordan Crouse return ERR_PTR(ret); 126693f7abf1SJordan Crouse 12678223286dSJordan Crouse } 12688223286dSJordan Crouse 12691e29dff0SJordan Crouse void msm_gem_kernel_put(struct drm_gem_object *bo, 1270030af2b0SRob Clark struct msm_gem_address_space *aspace) 12711e29dff0SJordan Crouse { 12721e29dff0SJordan Crouse if (IS_ERR_OR_NULL(bo)) 12731e29dff0SJordan Crouse return; 12741e29dff0SJordan Crouse 12751e29dff0SJordan Crouse msm_gem_put_vaddr(bo); 12767ad0e8cfSJordan Crouse msm_gem_unpin_iova(bo, aspace); 1277f7d33950SEmil Velikov drm_gem_object_put(bo); 12781e29dff0SJordan Crouse } 12790815d774SJordan Crouse 12800815d774SJordan Crouse void msm_gem_object_set_name(struct drm_gem_object *bo, const char *fmt, ...) 12810815d774SJordan Crouse { 12820815d774SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(bo); 12830815d774SJordan Crouse va_list ap; 12840815d774SJordan Crouse 12850815d774SJordan Crouse if (!fmt) 12860815d774SJordan Crouse return; 12870815d774SJordan Crouse 12880815d774SJordan Crouse va_start(ap, fmt); 12890815d774SJordan Crouse vsnprintf(msm_obj->name, sizeof(msm_obj->name), fmt, ap); 12900815d774SJordan Crouse va_end(ap); 12910815d774SJordan Crouse } 1292