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 3124b85f7f5SRob Clark vma = kzalloc(sizeof(*vma), GFP_KERNEL); 3134b85f7f5SRob Clark if (!vma) 3144b85f7f5SRob Clark return ERR_PTR(-ENOMEM); 3154b85f7f5SRob Clark 3164b85f7f5SRob Clark vma->aspace = aspace; 3174b85f7f5SRob Clark 3184b85f7f5SRob Clark list_add_tail(&vma->list, &msm_obj->vmas); 3194b85f7f5SRob Clark 3204b85f7f5SRob Clark return vma; 3214b85f7f5SRob Clark } 3224b85f7f5SRob Clark 3234b85f7f5SRob Clark static struct msm_gem_vma *lookup_vma(struct drm_gem_object *obj, 3244b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3254b85f7f5SRob Clark { 3264b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3274b85f7f5SRob Clark struct msm_gem_vma *vma; 3284b85f7f5SRob Clark 329d4d7d363SRob Clark msm_gem_assert_locked(obj); 3304b85f7f5SRob Clark 3314b85f7f5SRob Clark list_for_each_entry(vma, &msm_obj->vmas, list) { 3324b85f7f5SRob Clark if (vma->aspace == aspace) 3334b85f7f5SRob Clark return vma; 3344b85f7f5SRob Clark } 3354b85f7f5SRob Clark 3364b85f7f5SRob Clark return NULL; 3374b85f7f5SRob Clark } 3384b85f7f5SRob Clark 3394b85f7f5SRob Clark static void del_vma(struct msm_gem_vma *vma) 3404b85f7f5SRob Clark { 3414b85f7f5SRob Clark if (!vma) 3424b85f7f5SRob Clark return; 3434b85f7f5SRob Clark 3444b85f7f5SRob Clark list_del(&vma->list); 3454b85f7f5SRob Clark kfree(vma); 3464b85f7f5SRob Clark } 3474b85f7f5SRob Clark 34837c68900SLee Jones /* 34920d0ae2fSRob Clark * If close is true, this also closes the VMA (releasing the allocated 35020d0ae2fSRob Clark * iova range) in addition to removing the iommu mapping. In the eviction 35120d0ae2fSRob Clark * case (!close), we keep the iova allocated, but only remove the iommu 35220d0ae2fSRob Clark * mapping. 35320d0ae2fSRob Clark */ 3544fe5f65eSRob Clark static void 35520d0ae2fSRob Clark put_iova_spaces(struct drm_gem_object *obj, bool close) 3564fe5f65eSRob Clark { 3574fe5f65eSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3589b73bde3SIskren Chernev struct msm_gem_vma *vma; 3594fe5f65eSRob Clark 360d4d7d363SRob Clark msm_gem_assert_locked(obj); 3614fe5f65eSRob Clark 3629b73bde3SIskren Chernev list_for_each_entry(vma, &msm_obj->vmas, list) { 363d67f1b6dSBrian Masney if (vma->aspace) { 3647ad0e8cfSJordan Crouse msm_gem_purge_vma(vma->aspace, vma); 36520d0ae2fSRob Clark if (close) 3667ad0e8cfSJordan Crouse msm_gem_close_vma(vma->aspace, vma); 367d67f1b6dSBrian Masney } 3689b73bde3SIskren Chernev } 3699b73bde3SIskren Chernev } 3709b73bde3SIskren Chernev 3719b73bde3SIskren Chernev /* Called with msm_obj locked */ 3729b73bde3SIskren Chernev static void 3739b73bde3SIskren Chernev put_iova_vmas(struct drm_gem_object *obj) 3744fe5f65eSRob Clark { 3754fe5f65eSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3764fe5f65eSRob Clark struct msm_gem_vma *vma, *tmp; 3774fe5f65eSRob Clark 378d4d7d363SRob Clark msm_gem_assert_locked(obj); 3794fe5f65eSRob Clark 3804fe5f65eSRob Clark list_for_each_entry_safe(vma, tmp, &msm_obj->vmas, list) { 3814b85f7f5SRob Clark del_vma(vma); 3824fe5f65eSRob Clark } 3834fe5f65eSRob Clark } 3844fe5f65eSRob Clark 385522f1abfSRob Clark static struct msm_gem_vma *get_vma_locked(struct drm_gem_object *obj, 386522f1abfSRob Clark struct msm_gem_address_space *aspace, 387d3b8877eSJonathan Marek u64 range_start, u64 range_end) 388c8afe684SRob Clark { 3894b85f7f5SRob Clark struct msm_gem_vma *vma; 390c8afe684SRob Clark 391d4d7d363SRob Clark msm_gem_assert_locked(obj); 392cb1e3818SRob Clark 3934b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 394871d812aSRob Clark 3954b85f7f5SRob Clark if (!vma) { 396522f1abfSRob Clark int ret; 397522f1abfSRob Clark 3984b85f7f5SRob Clark vma = add_vma(obj, aspace); 399c0ee9794SJordan Crouse if (IS_ERR(vma)) 400522f1abfSRob Clark return vma; 4014b85f7f5SRob Clark 4022ee4b5d2SRob Clark ret = msm_gem_init_vma(aspace, vma, obj->size, 403d3b8877eSJonathan Marek range_start, range_end); 404c0ee9794SJordan Crouse if (ret) { 405c0ee9794SJordan Crouse del_vma(vma); 406522f1abfSRob Clark return ERR_PTR(ret); 407c8afe684SRob Clark } 408522f1abfSRob Clark } else { 409522f1abfSRob Clark GEM_WARN_ON(vma->iova < range_start); 410522f1abfSRob Clark GEM_WARN_ON((vma->iova + obj->size) > range_end); 4114b85f7f5SRob Clark } 4124b85f7f5SRob Clark 413522f1abfSRob Clark return vma; 414c0ee9794SJordan Crouse } 4154b85f7f5SRob Clark 41627674c66SRob Clark int msm_gem_pin_vma_locked(struct drm_gem_object *obj, struct msm_gem_vma *vma) 417c0ee9794SJordan Crouse { 418c0ee9794SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 419c0ee9794SJordan Crouse struct page **pages; 42064fcbde7SRob Clark int ret, prot = IOMMU_READ; 421bbc2cd07SRob Clark 422bbc2cd07SRob Clark if (!(msm_obj->flags & MSM_BO_GPU_READONLY)) 423bbc2cd07SRob Clark prot |= IOMMU_WRITE; 424c0ee9794SJordan Crouse 4250b462d7aSJonathan Marek if (msm_obj->flags & MSM_BO_MAP_PRIV) 4260b462d7aSJonathan Marek prot |= IOMMU_PRIV; 4270b462d7aSJonathan Marek 428d12e3390SJonathan Marek if (msm_obj->flags & MSM_BO_CACHED_COHERENT) 429d12e3390SJonathan Marek prot |= IOMMU_CACHE; 430d12e3390SJonathan Marek 431d4d7d363SRob Clark msm_gem_assert_locked(obj); 432c0ee9794SJordan Crouse 43390643a24SRob Clark if (GEM_WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) 434c0ee9794SJordan Crouse return -EBUSY; 435c0ee9794SJordan Crouse 4369fd5ff7fSRob Clark pages = msm_gem_pin_pages_locked(obj); 437c0ee9794SJordan Crouse if (IS_ERR(pages)) 438c0ee9794SJordan Crouse return PTR_ERR(pages); 439c0ee9794SJordan Crouse 440522f1abfSRob Clark ret = msm_gem_map_vma(vma->aspace, vma, prot, msm_obj->sgt, obj->size); 4419fd5ff7fSRob Clark if (ret) 4429fd5ff7fSRob Clark msm_gem_unpin_locked(obj); 44364fcbde7SRob Clark 44464fcbde7SRob Clark return ret; 445c0ee9794SJordan Crouse } 446c0ee9794SJordan Crouse 447311e03c2SRob Clark void msm_gem_unpin_locked(struct drm_gem_object *obj) 44827674c66SRob Clark { 44927674c66SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 45027674c66SRob Clark 451d4d7d363SRob Clark msm_gem_assert_locked(obj); 45227674c66SRob Clark 45327674c66SRob Clark msm_obj->pin_count--; 45427674c66SRob Clark GEM_WARN_ON(msm_obj->pin_count < 0); 45527674c66SRob Clark 456901df24dSRob Clark update_lru(obj); 45727674c66SRob Clark } 45827674c66SRob Clark 45927674c66SRob Clark struct msm_gem_vma *msm_gem_get_vma_locked(struct drm_gem_object *obj, 46027674c66SRob Clark struct msm_gem_address_space *aspace) 46127674c66SRob Clark { 46227674c66SRob Clark return get_vma_locked(obj, aspace, 0, U64_MAX); 46327674c66SRob Clark } 46427674c66SRob Clark 465e4b87d22SRob Clark static int get_and_pin_iova_range_locked(struct drm_gem_object *obj, 466d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova, 467d3b8877eSJonathan Marek u64 range_start, u64 range_end) 468c0ee9794SJordan Crouse { 469522f1abfSRob Clark struct msm_gem_vma *vma; 470c0ee9794SJordan Crouse int ret; 471c0ee9794SJordan Crouse 472d4d7d363SRob Clark msm_gem_assert_locked(obj); 473c0ee9794SJordan Crouse 474522f1abfSRob Clark vma = get_vma_locked(obj, aspace, range_start, range_end); 475522f1abfSRob Clark if (IS_ERR(vma)) 476522f1abfSRob Clark return PTR_ERR(vma); 477c0ee9794SJordan Crouse 47827674c66SRob Clark ret = msm_gem_pin_vma_locked(obj, vma); 479c0ee9794SJordan Crouse if (!ret) 480522f1abfSRob Clark *iova = vma->iova; 481c0ee9794SJordan Crouse 482c8afe684SRob Clark return ret; 483c8afe684SRob Clark } 484c8afe684SRob Clark 485e4b87d22SRob Clark /* 486e4b87d22SRob Clark * get iova and pin it. Should have a matching put 487e4b87d22SRob Clark * limits iova to specified range (in pages) 488e4b87d22SRob Clark */ 489e4b87d22SRob Clark int msm_gem_get_and_pin_iova_range(struct drm_gem_object *obj, 490e4b87d22SRob Clark struct msm_gem_address_space *aspace, uint64_t *iova, 491e4b87d22SRob Clark u64 range_start, u64 range_end) 492e4b87d22SRob Clark { 493e4b87d22SRob Clark int ret; 494e4b87d22SRob Clark 495e4b87d22SRob Clark msm_gem_lock(obj); 496e4b87d22SRob Clark ret = get_and_pin_iova_range_locked(obj, aspace, iova, range_start, range_end); 497e4b87d22SRob Clark msm_gem_unlock(obj); 498e4b87d22SRob Clark 499e4b87d22SRob Clark return ret; 500e4b87d22SRob Clark } 501e4b87d22SRob Clark 502d3b8877eSJonathan Marek /* get iova and pin it. Should have a matching put */ 503d3b8877eSJonathan Marek int msm_gem_get_and_pin_iova(struct drm_gem_object *obj, 504d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova) 505d3b8877eSJonathan Marek { 506d3b8877eSJonathan Marek return msm_gem_get_and_pin_iova_range(obj, aspace, iova, 0, U64_MAX); 507d3b8877eSJonathan Marek } 508d3b8877eSJonathan Marek 5097ad0e8cfSJordan Crouse /* 5107ad0e8cfSJordan Crouse * Get an iova but don't pin it. Doesn't need a put because iovas are currently 5117ad0e8cfSJordan Crouse * valid for the life of the object 5127ad0e8cfSJordan Crouse */ 5139fe041f6SJordan Crouse int msm_gem_get_iova(struct drm_gem_object *obj, 5149fe041f6SJordan Crouse struct msm_gem_address_space *aspace, uint64_t *iova) 5159fe041f6SJordan Crouse { 516522f1abfSRob Clark struct msm_gem_vma *vma; 517522f1abfSRob Clark int ret = 0; 5189fe041f6SJordan Crouse 519a6ae74c9SRob Clark msm_gem_lock(obj); 520522f1abfSRob Clark vma = get_vma_locked(obj, aspace, 0, U64_MAX); 521522f1abfSRob Clark if (IS_ERR(vma)) { 522522f1abfSRob Clark ret = PTR_ERR(vma); 523522f1abfSRob Clark } else { 524522f1abfSRob Clark *iova = vma->iova; 525522f1abfSRob Clark } 526a6ae74c9SRob Clark msm_gem_unlock(obj); 5279fe041f6SJordan Crouse 5289fe041f6SJordan Crouse return ret; 5299fe041f6SJordan Crouse } 5309fe041f6SJordan Crouse 531a636a0ffSRob Clark static int clear_iova(struct drm_gem_object *obj, 5328bdcd949SRob Clark struct msm_gem_address_space *aspace) 5332638d90aSRob Clark { 534a636a0ffSRob Clark struct msm_gem_vma *vma = lookup_vma(obj, aspace); 5354b85f7f5SRob Clark 536a636a0ffSRob Clark if (!vma) 537a636a0ffSRob Clark return 0; 5384b85f7f5SRob Clark 539a636a0ffSRob Clark if (msm_gem_vma_inuse(vma)) 540a636a0ffSRob Clark return -EBUSY; 541a636a0ffSRob Clark 542a636a0ffSRob Clark msm_gem_purge_vma(vma->aspace, vma); 543a636a0ffSRob Clark msm_gem_close_vma(vma->aspace, vma); 544a636a0ffSRob Clark del_vma(vma); 545a636a0ffSRob Clark 546a636a0ffSRob Clark return 0; 5472638d90aSRob Clark } 5482638d90aSRob Clark 5497ad0e8cfSJordan Crouse /* 550a636a0ffSRob Clark * Get the requested iova but don't pin it. Fails if the requested iova is 551a636a0ffSRob Clark * not available. Doesn't need a put because iovas are currently valid for 552a636a0ffSRob Clark * the life of the object. 553a636a0ffSRob Clark * 554a636a0ffSRob Clark * Setting an iova of zero will clear the vma. 555e4b87d22SRob Clark */ 556a636a0ffSRob Clark int msm_gem_set_iova(struct drm_gem_object *obj, 557a636a0ffSRob Clark struct msm_gem_address_space *aspace, uint64_t iova) 558e4b87d22SRob Clark { 559a636a0ffSRob Clark int ret = 0; 560a636a0ffSRob Clark 561a636a0ffSRob Clark msm_gem_lock(obj); 562a636a0ffSRob Clark if (!iova) { 563a636a0ffSRob Clark ret = clear_iova(obj, aspace); 564a636a0ffSRob Clark } else { 565e4b87d22SRob Clark struct msm_gem_vma *vma; 566a636a0ffSRob Clark vma = get_vma_locked(obj, aspace, iova, iova + obj->size); 567a636a0ffSRob Clark if (IS_ERR(vma)) { 568a636a0ffSRob Clark ret = PTR_ERR(vma); 569a636a0ffSRob Clark } else if (GEM_WARN_ON(vma->iova != iova)) { 570a636a0ffSRob Clark clear_iova(obj, aspace); 571a636a0ffSRob Clark ret = -EBUSY; 57264fcbde7SRob Clark } 573e4b87d22SRob Clark } 574a636a0ffSRob Clark msm_gem_unlock(obj); 575a636a0ffSRob Clark 576a636a0ffSRob Clark return ret; 577a636a0ffSRob Clark } 578e4b87d22SRob Clark 579e4b87d22SRob Clark /* 5807ad0e8cfSJordan Crouse * Unpin a iova by updating the reference counts. The memory isn't actually 5817ad0e8cfSJordan Crouse * purged until something else (shrinker, mm_notifier, destroy, etc) decides 5827ad0e8cfSJordan Crouse * to get rid of it 5837ad0e8cfSJordan Crouse */ 5847ad0e8cfSJordan Crouse void msm_gem_unpin_iova(struct drm_gem_object *obj, 5858bdcd949SRob Clark struct msm_gem_address_space *aspace) 586c8afe684SRob Clark { 58727674c66SRob Clark struct msm_gem_vma *vma; 58827674c66SRob Clark 589a6ae74c9SRob Clark msm_gem_lock(obj); 59027674c66SRob Clark vma = lookup_vma(obj, aspace); 59127674c66SRob Clark if (!GEM_WARN_ON(!vma)) { 592311e03c2SRob Clark msm_gem_unpin_vma(vma); 593311e03c2SRob Clark msm_gem_unpin_locked(obj); 59427674c66SRob Clark } 595a6ae74c9SRob Clark msm_gem_unlock(obj); 596c8afe684SRob Clark } 597c8afe684SRob Clark 598c8afe684SRob Clark int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 599c8afe684SRob Clark struct drm_mode_create_dumb *args) 600c8afe684SRob Clark { 601c8afe684SRob Clark args->pitch = align_pitch(args->width, args->bpp); 602c8afe684SRob Clark args->size = PAGE_ALIGN(args->pitch * args->height); 603c8afe684SRob Clark return msm_gem_new_handle(dev, file, args->size, 6040815d774SJordan Crouse MSM_BO_SCANOUT | MSM_BO_WC, &args->handle, "dumb"); 605c8afe684SRob Clark } 606c8afe684SRob Clark 607c8afe684SRob Clark int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 608c8afe684SRob Clark uint32_t handle, uint64_t *offset) 609c8afe684SRob Clark { 610c8afe684SRob Clark struct drm_gem_object *obj; 611c8afe684SRob Clark int ret = 0; 612c8afe684SRob Clark 613c8afe684SRob Clark /* GEM does all our handle to object mapping */ 614a8ad0bd8SChris Wilson obj = drm_gem_object_lookup(file, handle); 615c8afe684SRob Clark if (obj == NULL) { 616c8afe684SRob Clark ret = -ENOENT; 617c8afe684SRob Clark goto fail; 618c8afe684SRob Clark } 619c8afe684SRob Clark 620c8afe684SRob Clark *offset = msm_gem_mmap_offset(obj); 621c8afe684SRob Clark 622f7d33950SEmil Velikov drm_gem_object_put(obj); 623c8afe684SRob Clark 624c8afe684SRob Clark fail: 625c8afe684SRob Clark return ret; 626c8afe684SRob Clark } 627c8afe684SRob Clark 628fad33f4bSRob Clark static void *get_vaddr(struct drm_gem_object *obj, unsigned madv) 629c8afe684SRob Clark { 6300e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 6310e08270aSSushmita Susheelendra int ret = 0; 6320e08270aSSushmita Susheelendra 633d4d7d363SRob Clark msm_gem_assert_locked(obj); 634e4b87d22SRob Clark 6358b6b7d84SDaniel Vetter if (obj->import_attach) 6368b6b7d84SDaniel Vetter return ERR_PTR(-ENODEV); 6378b6b7d84SDaniel Vetter 63890643a24SRob Clark if (GEM_WARN_ON(msm_obj->madv > madv)) { 6396a41da17SMamta Shukla DRM_DEV_ERROR(obj->dev->dev, "Invalid madv state: %u vs %u\n", 640fad33f4bSRob Clark msm_obj->madv, madv); 6410e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 642c8afe684SRob Clark } 643c8afe684SRob Clark 6440e08270aSSushmita Susheelendra /* increment vmap_count *before* vmap() call, so shrinker can 645a6ae74c9SRob Clark * check vmap_count (is_vunmapable()) outside of msm_obj lock. 6460e08270aSSushmita Susheelendra * This guarantees that we won't try to msm_gem_vunmap() this 6470e08270aSSushmita Susheelendra * same object from within the vmap() call (while we already 648a6ae74c9SRob Clark * hold msm_obj lock) 6490e08270aSSushmita Susheelendra */ 6500e08270aSSushmita Susheelendra msm_obj->vmap_count++; 6510e08270aSSushmita Susheelendra 6520e08270aSSushmita Susheelendra if (!msm_obj->vaddr) { 6530e08270aSSushmita Susheelendra struct page **pages = get_pages(obj); 6540e08270aSSushmita Susheelendra if (IS_ERR(pages)) { 6550e08270aSSushmita Susheelendra ret = PTR_ERR(pages); 6560e08270aSSushmita Susheelendra goto fail; 6570e08270aSSushmita Susheelendra } 6580e08270aSSushmita Susheelendra msm_obj->vaddr = vmap(pages, obj->size >> PAGE_SHIFT, 659af9b3547SJonathan Marek VM_MAP, msm_gem_pgprot(msm_obj, PAGE_KERNEL)); 6600e08270aSSushmita Susheelendra if (msm_obj->vaddr == NULL) { 6610e08270aSSushmita Susheelendra ret = -ENOMEM; 6620e08270aSSushmita Susheelendra goto fail; 6630e08270aSSushmita Susheelendra } 66410f76165SRob Clark 665901df24dSRob Clark update_lru(obj); 6660e08270aSSushmita Susheelendra } 6670e08270aSSushmita Susheelendra 6680e08270aSSushmita Susheelendra return msm_obj->vaddr; 6690e08270aSSushmita Susheelendra 6700e08270aSSushmita Susheelendra fail: 671e1e9db2cSRob Clark msm_obj->vmap_count--; 6720e08270aSSushmita Susheelendra return ERR_PTR(ret); 67318f23049SRob Clark } 67418f23049SRob Clark 675e4b87d22SRob Clark void *msm_gem_get_vaddr_locked(struct drm_gem_object *obj) 676e4b87d22SRob Clark { 677e4b87d22SRob Clark return get_vaddr(obj, MSM_MADV_WILLNEED); 678e4b87d22SRob Clark } 679e4b87d22SRob Clark 680fad33f4bSRob Clark void *msm_gem_get_vaddr(struct drm_gem_object *obj) 681fad33f4bSRob Clark { 682e4b87d22SRob Clark void *ret; 683e4b87d22SRob Clark 684e4b87d22SRob Clark msm_gem_lock(obj); 685e4b87d22SRob Clark ret = msm_gem_get_vaddr_locked(obj); 686e4b87d22SRob Clark msm_gem_unlock(obj); 687e4b87d22SRob Clark 688e4b87d22SRob Clark return ret; 689fad33f4bSRob Clark } 690fad33f4bSRob Clark 691fad33f4bSRob Clark /* 692fad33f4bSRob Clark * Don't use this! It is for the very special case of dumping 693fad33f4bSRob Clark * submits from GPU hangs or faults, were the bo may already 694fad33f4bSRob Clark * be MSM_MADV_DONTNEED, but we know the buffer is still on the 695fad33f4bSRob Clark * active list. 696fad33f4bSRob Clark */ 697fad33f4bSRob Clark void *msm_gem_get_vaddr_active(struct drm_gem_object *obj) 698fad33f4bSRob Clark { 699fad33f4bSRob Clark return get_vaddr(obj, __MSM_MADV_PURGED); 700fad33f4bSRob Clark } 701fad33f4bSRob Clark 702e4b87d22SRob Clark void msm_gem_put_vaddr_locked(struct drm_gem_object *obj) 70318f23049SRob Clark { 7040e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 7050e08270aSSushmita Susheelendra 706d4d7d363SRob Clark msm_gem_assert_locked(obj); 70790643a24SRob Clark GEM_WARN_ON(msm_obj->vmap_count < 1); 708e4b87d22SRob Clark 7090e08270aSSushmita Susheelendra msm_obj->vmap_count--; 7104cd33c48SRob Clark } 7110e08270aSSushmita Susheelendra 7120e08270aSSushmita Susheelendra void msm_gem_put_vaddr(struct drm_gem_object *obj) 7134cd33c48SRob Clark { 714a6ae74c9SRob Clark msm_gem_lock(obj); 715e4b87d22SRob Clark msm_gem_put_vaddr_locked(obj); 716a6ae74c9SRob Clark msm_gem_unlock(obj); 7174cd33c48SRob Clark } 7184cd33c48SRob Clark 7194cd33c48SRob Clark /* Update madvise status, returns true if not purged, else 7204cd33c48SRob Clark * false or -errno. 7214cd33c48SRob Clark */ 7224cd33c48SRob Clark int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv) 7234cd33c48SRob Clark { 7244cd33c48SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 72568209390SRob Clark 726a6ae74c9SRob Clark msm_gem_lock(obj); 727c8afe684SRob Clark 728c8afe684SRob Clark if (msm_obj->madv != __MSM_MADV_PURGED) 729c8afe684SRob Clark msm_obj->madv = madv; 730c8afe684SRob Clark 7310e08270aSSushmita Susheelendra madv = msm_obj->madv; 7320e08270aSSushmita Susheelendra 7333edfa30fSRob Clark /* If the obj is inactive, we might need to move it 7343edfa30fSRob Clark * between inactive lists 7353edfa30fSRob Clark */ 736901df24dSRob Clark update_lru(obj); 7373edfa30fSRob Clark 738a6ae74c9SRob Clark msm_gem_unlock(obj); 7390e08270aSSushmita Susheelendra 7400e08270aSSushmita Susheelendra return (madv != __MSM_MADV_PURGED); 741c8afe684SRob Clark } 742c8afe684SRob Clark 743599089c6SRob Clark void msm_gem_purge(struct drm_gem_object *obj) 74468209390SRob Clark { 74568209390SRob Clark struct drm_device *dev = obj->dev; 74668209390SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 74768209390SRob Clark 748d4d7d363SRob Clark msm_gem_assert_locked(obj); 74990643a24SRob Clark GEM_WARN_ON(!is_purgeable(msm_obj)); 75068209390SRob Clark 75120d0ae2fSRob Clark /* Get rid of any iommu mapping(s): */ 75220d0ae2fSRob Clark put_iova_spaces(obj, true); 7530e08270aSSushmita Susheelendra 754599089c6SRob Clark msm_gem_vunmap(obj); 75568209390SRob Clark 75681d4d597SRob Clark drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); 75781d4d597SRob Clark 75868209390SRob Clark put_pages(obj); 75968209390SRob Clark 7609b73bde3SIskren Chernev put_iova_vmas(obj); 7619b73bde3SIskren Chernev 76268209390SRob Clark msm_obj->madv = __MSM_MADV_PURGED; 76368209390SRob Clark 76468209390SRob Clark drm_gem_free_mmap_offset(obj); 76568209390SRob Clark 76668209390SRob Clark /* Our goal here is to return as much of the memory as 76768209390SRob Clark * is possible back to the system as we are called from OOM. 76868209390SRob Clark * To do this we must instruct the shmfs to drop all of its 76968209390SRob Clark * backing pages, *now*. 77068209390SRob Clark */ 77168209390SRob Clark shmem_truncate_range(file_inode(obj->filp), 0, (loff_t)-1); 77268209390SRob Clark 77368209390SRob Clark invalidate_mapping_pages(file_inode(obj->filp)->i_mapping, 77468209390SRob Clark 0, (loff_t)-1); 77568209390SRob Clark } 77668209390SRob Clark 77737c68900SLee Jones /* 77863f17ef8SRob Clark * Unpin the backing pages and make them available to be swapped out. 77963f17ef8SRob Clark */ 78063f17ef8SRob Clark void msm_gem_evict(struct drm_gem_object *obj) 78163f17ef8SRob Clark { 78263f17ef8SRob Clark struct drm_device *dev = obj->dev; 78363f17ef8SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 78463f17ef8SRob Clark 785d4d7d363SRob Clark msm_gem_assert_locked(obj); 78663f17ef8SRob Clark GEM_WARN_ON(is_unevictable(msm_obj)); 78763f17ef8SRob Clark 78863f17ef8SRob Clark /* Get rid of any iommu mapping(s): */ 78963f17ef8SRob Clark put_iova_spaces(obj, false); 79063f17ef8SRob Clark 79163f17ef8SRob Clark drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); 79263f17ef8SRob Clark 79363f17ef8SRob Clark put_pages(obj); 79463f17ef8SRob Clark } 79563f17ef8SRob Clark 796599089c6SRob Clark void msm_gem_vunmap(struct drm_gem_object *obj) 797e1e9db2cSRob Clark { 798e1e9db2cSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 799e1e9db2cSRob Clark 800d4d7d363SRob Clark msm_gem_assert_locked(obj); 8010e08270aSSushmita Susheelendra 80290643a24SRob Clark if (!msm_obj->vaddr || GEM_WARN_ON(!is_vunmapable(msm_obj))) 803e1e9db2cSRob Clark return; 804e1e9db2cSRob Clark 805e1e9db2cSRob Clark vunmap(msm_obj->vaddr); 806e1e9db2cSRob Clark msm_obj->vaddr = NULL; 807e1e9db2cSRob Clark } 808e1e9db2cSRob Clark 809901df24dSRob Clark static void update_lru(struct drm_gem_object *obj) 8103edfa30fSRob Clark { 811901df24dSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 812901df24dSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 8133edfa30fSRob Clark 814d4d7d363SRob Clark msm_gem_assert_locked(&msm_obj->base); 81564fcbde7SRob Clark 816b352ba54SRob Clark if (!msm_obj->pages) { 817b352ba54SRob Clark GEM_WARN_ON(msm_obj->pin_count); 818b352ba54SRob Clark GEM_WARN_ON(msm_obj->vmap_count); 8193edfa30fSRob Clark 820b352ba54SRob Clark drm_gem_lru_move_tail(&priv->lru.unbacked, obj); 821b352ba54SRob Clark } else if (msm_obj->pin_count || msm_obj->vmap_count) { 822b352ba54SRob Clark drm_gem_lru_move_tail(&priv->lru.pinned, obj); 823b352ba54SRob Clark } else if (msm_obj->madv == MSM_MADV_WILLNEED) { 824b352ba54SRob Clark drm_gem_lru_move_tail(&priv->lru.willneed, obj); 825cc8a4d5aSRob Clark } else { 826b352ba54SRob Clark GEM_WARN_ON(msm_obj->madv != MSM_MADV_DONTNEED); 8273edfa30fSRob Clark 828b352ba54SRob Clark drm_gem_lru_move_tail(&priv->lru.dontneed, obj); 829b352ba54SRob Clark } 8303edfa30fSRob Clark } 8313edfa30fSRob Clark 83201780d02SRob Clark bool msm_gem_active(struct drm_gem_object *obj) 83301780d02SRob Clark { 834d4d7d363SRob Clark msm_gem_assert_locked(obj); 83501780d02SRob Clark 83601780d02SRob Clark if (to_msm_bo(obj)->pin_count) 83701780d02SRob Clark return true; 83801780d02SRob Clark 83901780d02SRob Clark return !dma_resv_test_signaled(obj->resv, dma_resv_usage_rw(true)); 84001780d02SRob Clark } 84101780d02SRob Clark 842ba00c3f2SRob Clark int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout) 843ba00c3f2SRob Clark { 844b6295f9aSRob Clark bool write = !!(op & MSM_PREP_WRITE); 845f755e227SChris Wilson unsigned long remain = 846f755e227SChris Wilson op & MSM_PREP_NOSYNC ? 0 : timeout_to_jiffies(timeout); 847f755e227SChris Wilson long ret; 848b6295f9aSRob Clark 8497bc80a54SChristian König ret = dma_resv_wait_timeout(obj->resv, dma_resv_usage_rw(write), 8507bc80a54SChristian König true, remain); 851f755e227SChris Wilson if (ret == 0) 852f755e227SChris Wilson return remain == 0 ? -EBUSY : -ETIMEDOUT; 853f755e227SChris Wilson else if (ret < 0) 854f755e227SChris Wilson return ret; 855ba00c3f2SRob Clark 8567198e6b0SRob Clark /* TODO cache maintenance */ 8577198e6b0SRob Clark 858b6295f9aSRob Clark return 0; 8597198e6b0SRob Clark } 8607198e6b0SRob Clark 8617198e6b0SRob Clark int msm_gem_cpu_fini(struct drm_gem_object *obj) 8627198e6b0SRob Clark { 8637198e6b0SRob Clark /* TODO cache maintenance */ 864c8afe684SRob Clark return 0; 865c8afe684SRob Clark } 866c8afe684SRob Clark 867c8afe684SRob Clark #ifdef CONFIG_DEBUG_FS 868528107c8SRob Clark void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m, 869528107c8SRob Clark struct msm_gem_stats *stats) 870c8afe684SRob Clark { 871c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 87252791eeeSChristian König struct dma_resv *robj = obj->resv; 8734b85f7f5SRob Clark struct msm_gem_vma *vma; 874c8afe684SRob Clark uint64_t off = drm_vma_node_start(&obj->vma_node); 8754cd33c48SRob Clark const char *madv; 876c8afe684SRob Clark 877a6ae74c9SRob Clark msm_gem_lock(obj); 878b6295f9aSRob Clark 879528107c8SRob Clark stats->all.count++; 880528107c8SRob Clark stats->all.size += obj->size; 881528107c8SRob Clark 882da53d8b5SRob Clark if (msm_gem_active(obj)) { 883528107c8SRob Clark stats->active.count++; 884528107c8SRob Clark stats->active.size += obj->size; 885528107c8SRob Clark } 886528107c8SRob Clark 887f48f3563SRob Clark if (msm_obj->pages) { 888f48f3563SRob Clark stats->resident.count++; 889f48f3563SRob Clark stats->resident.size += obj->size; 890f48f3563SRob Clark } 891f48f3563SRob Clark 8924cd33c48SRob Clark switch (msm_obj->madv) { 8934cd33c48SRob Clark case __MSM_MADV_PURGED: 894528107c8SRob Clark stats->purged.count++; 895528107c8SRob Clark stats->purged.size += obj->size; 8964cd33c48SRob Clark madv = " purged"; 8974cd33c48SRob Clark break; 8984cd33c48SRob Clark case MSM_MADV_DONTNEED: 8990054eeb7SRob Clark stats->purgeable.count++; 9000054eeb7SRob Clark stats->purgeable.size += obj->size; 9014cd33c48SRob Clark madv = " purgeable"; 9024cd33c48SRob Clark break; 9034cd33c48SRob Clark case MSM_MADV_WILLNEED: 9044cd33c48SRob Clark default: 9054cd33c48SRob Clark madv = ""; 9064cd33c48SRob Clark break; 9074cd33c48SRob Clark } 9084cd33c48SRob Clark 909575f0485SJordan Crouse seq_printf(m, "%08x: %c %2d (%2d) %08llx %p", 910da53d8b5SRob Clark msm_obj->flags, msm_gem_active(obj) ? 'A' : 'I', 9112c935bc5SPeter Zijlstra obj->name, kref_read(&obj->refcount), 912667ce33eSRob Clark off, msm_obj->vaddr); 913667ce33eSRob Clark 9140815d774SJordan Crouse seq_printf(m, " %08zu %9s %-32s\n", obj->size, madv, msm_obj->name); 915667ce33eSRob Clark 916575f0485SJordan Crouse if (!list_empty(&msm_obj->vmas)) { 917575f0485SJordan Crouse 918575f0485SJordan Crouse seq_puts(m, " vmas:"); 919575f0485SJordan Crouse 92025faf2f2SRob Clark list_for_each_entry(vma, &msm_obj->vmas, list) { 92125faf2f2SRob Clark const char *name, *comm; 92225faf2f2SRob Clark if (vma->aspace) { 92325faf2f2SRob Clark struct msm_gem_address_space *aspace = vma->aspace; 92425faf2f2SRob Clark struct task_struct *task = 92525faf2f2SRob Clark get_pid_task(aspace->pid, PIDTYPE_PID); 92625faf2f2SRob Clark if (task) { 92725faf2f2SRob Clark comm = kstrdup(task->comm, GFP_KERNEL); 928ac3e4f42SRob Clark put_task_struct(task); 92925faf2f2SRob Clark } else { 93025faf2f2SRob Clark comm = NULL; 93125faf2f2SRob Clark } 93225faf2f2SRob Clark name = aspace->name; 93325faf2f2SRob Clark } else { 93425faf2f2SRob Clark name = comm = NULL; 93525faf2f2SRob Clark } 93625faf2f2SRob Clark seq_printf(m, " [%s%s%s: aspace=%p, %08llx,%s,inuse=%d]", 93725faf2f2SRob Clark name, comm ? ":" : "", comm ? comm : "", 93825faf2f2SRob Clark vma->aspace, vma->iova, 93925faf2f2SRob Clark vma->mapped ? "mapped" : "unmapped", 940ca35ab2aSRob Clark msm_gem_vma_inuse(vma)); 94125faf2f2SRob Clark kfree(comm); 94225faf2f2SRob Clark } 943575f0485SJordan Crouse 944575f0485SJordan Crouse seq_puts(m, "\n"); 945575f0485SJordan Crouse } 946b6295f9aSRob Clark 947f19ee2f3SChristian König dma_resv_describe(robj, m); 948a6ae74c9SRob Clark msm_gem_unlock(obj); 949c8afe684SRob Clark } 950c8afe684SRob Clark 951c8afe684SRob Clark void msm_gem_describe_objects(struct list_head *list, struct seq_file *m) 952c8afe684SRob Clark { 953528107c8SRob Clark struct msm_gem_stats stats = {}; 954c8afe684SRob Clark struct msm_gem_object *msm_obj; 955c8afe684SRob Clark 9560815d774SJordan Crouse seq_puts(m, " flags id ref offset kaddr size madv name\n"); 9576ed0897cSRob Clark list_for_each_entry(msm_obj, list, node) { 958c8afe684SRob Clark struct drm_gem_object *obj = &msm_obj->base; 959575f0485SJordan Crouse seq_puts(m, " "); 960528107c8SRob Clark msm_gem_describe(obj, m, &stats); 961c8afe684SRob Clark } 962c8afe684SRob Clark 963528107c8SRob Clark seq_printf(m, "Total: %4d objects, %9zu bytes\n", 964528107c8SRob Clark stats.all.count, stats.all.size); 965528107c8SRob Clark seq_printf(m, "Active: %4d objects, %9zu bytes\n", 966528107c8SRob Clark stats.active.count, stats.active.size); 967f48f3563SRob Clark seq_printf(m, "Resident: %4d objects, %9zu bytes\n", 968f48f3563SRob Clark stats.resident.count, stats.resident.size); 969f1902c6bSColin Ian King seq_printf(m, "Purgeable: %4d objects, %9zu bytes\n", 9700054eeb7SRob Clark stats.purgeable.count, stats.purgeable.size); 971528107c8SRob Clark seq_printf(m, "Purged: %4d objects, %9zu bytes\n", 972528107c8SRob Clark stats.purged.count, stats.purged.size); 973c8afe684SRob Clark } 974c8afe684SRob Clark #endif 975c8afe684SRob Clark 976030af2b0SRob Clark /* don't call directly! Use drm_gem_object_put() */ 9776867c9afSRob Clark static void msm_gem_free_object(struct drm_gem_object *obj) 978c8afe684SRob Clark { 979c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 98048e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 98148e7f183SKristian H. Kristensen struct msm_drm_private *priv = dev->dev_private; 98248e7f183SKristian H. Kristensen 9836ed0897cSRob Clark mutex_lock(&priv->obj_lock); 9846ed0897cSRob Clark list_del(&msm_obj->node); 9856ed0897cSRob Clark mutex_unlock(&priv->obj_lock); 9866ed0897cSRob Clark 98720d0ae2fSRob Clark put_iova_spaces(obj, true); 988c8afe684SRob Clark 98905b84911SRob Clark if (obj->import_attach) { 99090643a24SRob Clark GEM_WARN_ON(msm_obj->vaddr); 99105b84911SRob Clark 99205b84911SRob Clark /* Don't drop the pages for imported dmabuf, as they are not 99305b84911SRob Clark * ours, just free the array we allocated: 99405b84911SRob Clark */ 9952098105eSMichal Hocko kvfree(msm_obj->pages); 99605b84911SRob Clark 99757f04815SRob Clark put_iova_vmas(obj); 99857f04815SRob Clark 999f28730c8Sjilai wang drm_prime_gem_destroy(obj, msm_obj->sgt); 100005b84911SRob Clark } else { 1001599089c6SRob Clark msm_gem_vunmap(obj); 1002c8afe684SRob Clark put_pages(obj); 100357f04815SRob Clark put_iova_vmas(obj); 100405b84911SRob Clark } 1005c8afe684SRob Clark 1006c8afe684SRob Clark drm_gem_object_release(obj); 1007c8afe684SRob Clark 1008c8afe684SRob Clark kfree(msm_obj); 1009c8afe684SRob Clark } 1010c8afe684SRob Clark 1011510410bfSThomas Zimmermann static int msm_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) 1012510410bfSThomas Zimmermann { 1013510410bfSThomas Zimmermann struct msm_gem_object *msm_obj = to_msm_bo(obj); 1014510410bfSThomas Zimmermann 1015*1c71222eSSuren Baghdasaryan vm_flags_set(vma, VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP); 1016510410bfSThomas Zimmermann vma->vm_page_prot = msm_gem_pgprot(msm_obj, vm_get_page_prot(vma->vm_flags)); 1017510410bfSThomas Zimmermann 1018510410bfSThomas Zimmermann return 0; 1019510410bfSThomas Zimmermann } 1020510410bfSThomas Zimmermann 1021c8afe684SRob Clark /* convenience method to construct a GEM buffer object, and userspace handle */ 1022c8afe684SRob Clark int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file, 10230815d774SJordan Crouse uint32_t size, uint32_t flags, uint32_t *handle, 10240815d774SJordan Crouse char *name) 1025c8afe684SRob Clark { 1026c8afe684SRob Clark struct drm_gem_object *obj; 1027c8afe684SRob Clark int ret; 1028c8afe684SRob Clark 1029c8afe684SRob Clark obj = msm_gem_new(dev, size, flags); 1030c8afe684SRob Clark 1031c8afe684SRob Clark if (IS_ERR(obj)) 1032c8afe684SRob Clark return PTR_ERR(obj); 1033c8afe684SRob Clark 10340815d774SJordan Crouse if (name) 10350815d774SJordan Crouse msm_gem_object_set_name(obj, "%s", name); 10360815d774SJordan Crouse 1037c8afe684SRob Clark ret = drm_gem_handle_create(file, obj, handle); 1038c8afe684SRob Clark 1039c8afe684SRob Clark /* drop reference from allocate - handle holds it now */ 1040f7d33950SEmil Velikov drm_gem_object_put(obj); 1041c8afe684SRob Clark 1042c8afe684SRob Clark return ret; 1043c8afe684SRob Clark } 1044c8afe684SRob Clark 10453c9edd9cSThomas Zimmermann static const struct vm_operations_struct vm_ops = { 10463c9edd9cSThomas Zimmermann .fault = msm_gem_fault, 10473c9edd9cSThomas Zimmermann .open = drm_gem_vm_open, 10483c9edd9cSThomas Zimmermann .close = drm_gem_vm_close, 10493c9edd9cSThomas Zimmermann }; 10503c9edd9cSThomas Zimmermann 10513c9edd9cSThomas Zimmermann static const struct drm_gem_object_funcs msm_gem_object_funcs = { 10523c9edd9cSThomas Zimmermann .free = msm_gem_free_object, 10533c9edd9cSThomas Zimmermann .pin = msm_gem_prime_pin, 10543c9edd9cSThomas Zimmermann .unpin = msm_gem_prime_unpin, 10553c9edd9cSThomas Zimmermann .get_sg_table = msm_gem_prime_get_sg_table, 10563c9edd9cSThomas Zimmermann .vmap = msm_gem_prime_vmap, 10573c9edd9cSThomas Zimmermann .vunmap = msm_gem_prime_vunmap, 1058510410bfSThomas Zimmermann .mmap = msm_gem_object_mmap, 10593c9edd9cSThomas Zimmermann .vm_ops = &vm_ops, 10603c9edd9cSThomas Zimmermann }; 10613c9edd9cSThomas Zimmermann 106205b84911SRob Clark static int msm_gem_new_impl(struct drm_device *dev, 106305b84911SRob Clark uint32_t size, uint32_t flags, 10643cbdc8d8SAkhil P Oommen struct drm_gem_object **obj) 1065c8afe684SRob Clark { 1066d12e3390SJonathan Marek struct msm_drm_private *priv = dev->dev_private; 1067c8afe684SRob Clark struct msm_gem_object *msm_obj; 1068c8afe684SRob Clark 1069c8afe684SRob Clark switch (flags & MSM_BO_CACHE_MASK) { 1070c8afe684SRob Clark case MSM_BO_CACHED: 1071c8afe684SRob Clark case MSM_BO_WC: 1072c8afe684SRob Clark break; 1073d12e3390SJonathan Marek case MSM_BO_CACHED_COHERENT: 1074d12e3390SJonathan Marek if (priv->has_cached_coherent) 1075d12e3390SJonathan Marek break; 1076e181ad43SGustavo A. R. Silva fallthrough; 1077c8afe684SRob Clark default: 10782d1d175aSRob Clark DRM_DEV_DEBUG(dev->dev, "invalid cache flag: %x\n", 1079c8afe684SRob Clark (flags & MSM_BO_CACHE_MASK)); 108005b84911SRob Clark return -EINVAL; 1081c8afe684SRob Clark } 1082c8afe684SRob Clark 1083667ce33eSRob Clark msm_obj = kzalloc(sizeof(*msm_obj), GFP_KERNEL); 108405b84911SRob Clark if (!msm_obj) 108505b84911SRob Clark return -ENOMEM; 1086c8afe684SRob Clark 1087c8afe684SRob Clark msm_obj->flags = flags; 10884cd33c48SRob Clark msm_obj->madv = MSM_MADV_WILLNEED; 1089c8afe684SRob Clark 1090027d052aSDan Carpenter INIT_LIST_HEAD(&msm_obj->node); 10914b85f7f5SRob Clark INIT_LIST_HEAD(&msm_obj->vmas); 10924b85f7f5SRob Clark 109305b84911SRob Clark *obj = &msm_obj->base; 10943c9edd9cSThomas Zimmermann (*obj)->funcs = &msm_gem_object_funcs; 109505b84911SRob Clark 109605b84911SRob Clark return 0; 109705b84911SRob Clark } 109805b84911SRob Clark 1099030af2b0SRob Clark struct drm_gem_object *msm_gem_new(struct drm_device *dev, uint32_t size, uint32_t flags) 110005b84911SRob Clark { 1101f4839bd5SRob Clark struct msm_drm_private *priv = dev->dev_private; 11023cbdc8d8SAkhil P Oommen struct msm_gem_object *msm_obj; 1103871d812aSRob Clark struct drm_gem_object *obj = NULL; 1104f4839bd5SRob Clark bool use_vram = false; 110505b84911SRob Clark int ret; 110605b84911SRob Clark 110705b84911SRob Clark size = PAGE_ALIGN(size); 110805b84911SRob Clark 1109c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) 1110f4839bd5SRob Clark use_vram = true; 111186f46f25SJonathan Marek else if ((flags & (MSM_BO_STOLEN | MSM_BO_SCANOUT)) && priv->vram.size) 1112f4839bd5SRob Clark use_vram = true; 1113f4839bd5SRob Clark 111490643a24SRob Clark if (GEM_WARN_ON(use_vram && !priv->vram.size)) 1115f4839bd5SRob Clark return ERR_PTR(-EINVAL); 1116f4839bd5SRob Clark 11171a5dff5dSJordan Crouse /* Disallow zero sized objects as they make the underlying 11181a5dff5dSJordan Crouse * infrastructure grumpy 11191a5dff5dSJordan Crouse */ 11201a5dff5dSJordan Crouse if (size == 0) 11211a5dff5dSJordan Crouse return ERR_PTR(-EINVAL); 11221a5dff5dSJordan Crouse 11233cbdc8d8SAkhil P Oommen ret = msm_gem_new_impl(dev, size, flags, &obj); 112405b84911SRob Clark if (ret) 11252203bd0eSDan Carpenter return ERR_PTR(ret); 112605b84911SRob Clark 11273cbdc8d8SAkhil P Oommen msm_obj = to_msm_bo(obj); 11283cbdc8d8SAkhil P Oommen 1129f4839bd5SRob Clark if (use_vram) { 11304b85f7f5SRob Clark struct msm_gem_vma *vma; 1131f4839bd5SRob Clark struct page **pages; 1132b3949a9aSHans Verkuil 1133a694ffedSIskren Chernev drm_gem_private_object_init(dev, obj, size); 1134a694ffedSIskren Chernev 1135a6ae74c9SRob Clark msm_gem_lock(obj); 1136f4839bd5SRob Clark 11374b85f7f5SRob Clark vma = add_vma(obj, NULL); 1138a6ae74c9SRob Clark msm_gem_unlock(obj); 11394b85f7f5SRob Clark if (IS_ERR(vma)) { 11404b85f7f5SRob Clark ret = PTR_ERR(vma); 11414b85f7f5SRob Clark goto fail; 11424b85f7f5SRob Clark } 11434b85f7f5SRob Clark 11444b85f7f5SRob Clark to_msm_bo(obj)->vram_node = &vma->node; 11454b85f7f5SRob Clark 114607fcad0dSIskren Chernev msm_gem_lock(obj); 1147f4839bd5SRob Clark pages = get_pages(obj); 114807fcad0dSIskren Chernev msm_gem_unlock(obj); 1149f4839bd5SRob Clark if (IS_ERR(pages)) { 1150f4839bd5SRob Clark ret = PTR_ERR(pages); 1151f4839bd5SRob Clark goto fail; 1152f4839bd5SRob Clark } 11534b85f7f5SRob Clark 11544b85f7f5SRob Clark vma->iova = physaddr(obj); 1155f4839bd5SRob Clark } else { 115605b84911SRob Clark ret = drm_gem_object_init(dev, obj, size); 115705b84911SRob Clark if (ret) 115805b84911SRob Clark goto fail; 11590abdba47SLucas Stach /* 11600abdba47SLucas Stach * Our buffers are kept pinned, so allocating them from the 11610abdba47SLucas Stach * MOVABLE zone is a really bad idea, and conflicts with CMA. 11620abdba47SLucas Stach * See comments above new_inode() why this is required _and_ 11630abdba47SLucas Stach * expected if you're going to pin these pages. 11640abdba47SLucas Stach */ 11650abdba47SLucas Stach mapping_set_gfp_mask(obj->filp->f_mapping, GFP_HIGHUSER); 1166871d812aSRob Clark } 116705b84911SRob Clark 1168b352ba54SRob Clark drm_gem_lru_move_tail(&priv->lru.unbacked, obj); 11693cbdc8d8SAkhil P Oommen 11706ed0897cSRob Clark mutex_lock(&priv->obj_lock); 11716ed0897cSRob Clark list_add_tail(&msm_obj->node, &priv->objects); 11726ed0897cSRob Clark mutex_unlock(&priv->obj_lock); 11736ed0897cSRob Clark 117405b84911SRob Clark return obj; 117505b84911SRob Clark 117605b84911SRob Clark fail: 1177f7d33950SEmil Velikov drm_gem_object_put(obj); 117805b84911SRob Clark return ERR_PTR(ret); 117905b84911SRob Clark } 118005b84911SRob Clark 118105b84911SRob Clark struct drm_gem_object *msm_gem_import(struct drm_device *dev, 118279f0e202SRob Clark struct dma_buf *dmabuf, struct sg_table *sgt) 118305b84911SRob Clark { 11843cbdc8d8SAkhil P Oommen struct msm_drm_private *priv = dev->dev_private; 118505b84911SRob Clark struct msm_gem_object *msm_obj; 118605b84911SRob Clark struct drm_gem_object *obj; 118779f0e202SRob Clark uint32_t size; 118805b84911SRob Clark int ret, npages; 118905b84911SRob Clark 1190871d812aSRob Clark /* if we don't have IOMMU, don't bother pretending we can import: */ 1191c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) { 11926a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "cannot import without IOMMU\n"); 1193871d812aSRob Clark return ERR_PTR(-EINVAL); 1194871d812aSRob Clark } 1195871d812aSRob Clark 119679f0e202SRob Clark size = PAGE_ALIGN(dmabuf->size); 119705b84911SRob Clark 11983cbdc8d8SAkhil P Oommen ret = msm_gem_new_impl(dev, size, MSM_BO_WC, &obj); 119905b84911SRob Clark if (ret) 12002203bd0eSDan Carpenter return ERR_PTR(ret); 120105b84911SRob Clark 120205b84911SRob Clark drm_gem_private_object_init(dev, obj, size); 120305b84911SRob Clark 120405b84911SRob Clark npages = size / PAGE_SIZE; 120505b84911SRob Clark 120605b84911SRob Clark msm_obj = to_msm_bo(obj); 1207a6ae74c9SRob Clark msm_gem_lock(obj); 120805b84911SRob Clark msm_obj->sgt = sgt; 12092098105eSMichal Hocko msm_obj->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 121005b84911SRob Clark if (!msm_obj->pages) { 1211a6ae74c9SRob Clark msm_gem_unlock(obj); 121205b84911SRob Clark ret = -ENOMEM; 121305b84911SRob Clark goto fail; 121405b84911SRob Clark } 121505b84911SRob Clark 1216c67e6279SChristian König ret = drm_prime_sg_to_page_array(sgt, msm_obj->pages, npages); 12170e08270aSSushmita Susheelendra if (ret) { 1218a6ae74c9SRob Clark msm_gem_unlock(obj); 121905b84911SRob Clark goto fail; 12200e08270aSSushmita Susheelendra } 122105b84911SRob Clark 1222a6ae74c9SRob Clark msm_gem_unlock(obj); 12233cbdc8d8SAkhil P Oommen 1224b352ba54SRob Clark drm_gem_lru_move_tail(&priv->lru.pinned, obj); 12253cbdc8d8SAkhil P Oommen 12266ed0897cSRob Clark mutex_lock(&priv->obj_lock); 12276ed0897cSRob Clark list_add_tail(&msm_obj->node, &priv->objects); 12286ed0897cSRob Clark mutex_unlock(&priv->obj_lock); 12296ed0897cSRob Clark 1230c8afe684SRob Clark return obj; 1231c8afe684SRob Clark 1232c8afe684SRob Clark fail: 1233f7d33950SEmil Velikov drm_gem_object_put(obj); 1234c8afe684SRob Clark return ERR_PTR(ret); 1235c8afe684SRob Clark } 12368223286dSJordan Crouse 1237030af2b0SRob Clark void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 12388223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 1239030af2b0SRob Clark struct drm_gem_object **bo, uint64_t *iova) 12408223286dSJordan Crouse { 12418223286dSJordan Crouse void *vaddr; 1242030af2b0SRob Clark struct drm_gem_object *obj = msm_gem_new(dev, size, flags); 12438223286dSJordan Crouse int ret; 12448223286dSJordan Crouse 12458223286dSJordan Crouse if (IS_ERR(obj)) 12468223286dSJordan Crouse return ERR_CAST(obj); 12478223286dSJordan Crouse 12488223286dSJordan Crouse if (iova) { 12499fe041f6SJordan Crouse ret = msm_gem_get_and_pin_iova(obj, aspace, iova); 125093f7abf1SJordan Crouse if (ret) 125193f7abf1SJordan Crouse goto err; 12528223286dSJordan Crouse } 12538223286dSJordan Crouse 12548223286dSJordan Crouse vaddr = msm_gem_get_vaddr(obj); 1255c9811d0fSWei Yongjun if (IS_ERR(vaddr)) { 12567ad0e8cfSJordan Crouse msm_gem_unpin_iova(obj, aspace); 125793f7abf1SJordan Crouse ret = PTR_ERR(vaddr); 125893f7abf1SJordan Crouse goto err; 12598223286dSJordan Crouse } 12608223286dSJordan Crouse 12618223286dSJordan Crouse if (bo) 12628223286dSJordan Crouse *bo = obj; 12638223286dSJordan Crouse 12648223286dSJordan Crouse return vaddr; 126593f7abf1SJordan Crouse err: 1266f7d33950SEmil Velikov drm_gem_object_put(obj); 126793f7abf1SJordan Crouse 126893f7abf1SJordan Crouse return ERR_PTR(ret); 126993f7abf1SJordan Crouse 12708223286dSJordan Crouse } 12718223286dSJordan Crouse 12721e29dff0SJordan Crouse void msm_gem_kernel_put(struct drm_gem_object *bo, 1273030af2b0SRob Clark struct msm_gem_address_space *aspace) 12741e29dff0SJordan Crouse { 12751e29dff0SJordan Crouse if (IS_ERR_OR_NULL(bo)) 12761e29dff0SJordan Crouse return; 12771e29dff0SJordan Crouse 12781e29dff0SJordan Crouse msm_gem_put_vaddr(bo); 12797ad0e8cfSJordan Crouse msm_gem_unpin_iova(bo, aspace); 1280f7d33950SEmil Velikov drm_gem_object_put(bo); 12811e29dff0SJordan Crouse } 12820815d774SJordan Crouse 12830815d774SJordan Crouse void msm_gem_object_set_name(struct drm_gem_object *bo, const char *fmt, ...) 12840815d774SJordan Crouse { 12850815d774SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(bo); 12860815d774SJordan Crouse va_list ap; 12870815d774SJordan Crouse 12880815d774SJordan Crouse if (!fmt) 12890815d774SJordan Crouse return; 12900815d774SJordan Crouse 12910815d774SJordan Crouse va_start(ap, fmt); 12920815d774SJordan Crouse vsnprintf(msm_obj->name, sizeof(msm_obj->name), fmt, ap); 12930815d774SJordan Crouse va_end(ap); 12940815d774SJordan Crouse } 1295