1caab277bSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2c8afe684SRob Clark /* 3c8afe684SRob Clark * Copyright (C) 2013 Red Hat 4c8afe684SRob Clark * Author: Rob Clark <robdclark@gmail.com> 5c8afe684SRob Clark */ 6c8afe684SRob Clark 70a0f0d8bSChristoph Hellwig #include <linux/dma-map-ops.h> 8c8afe684SRob Clark #include <linux/spinlock.h> 9c8afe684SRob Clark #include <linux/shmem_fs.h> 1005b84911SRob Clark #include <linux/dma-buf.h> 1101c8f1c4SDan Williams #include <linux/pfn_t.h> 12c8afe684SRob Clark 13feea39a8SSam Ravnborg #include <drm/drm_prime.h> 14feea39a8SSam Ravnborg 15c8afe684SRob Clark #include "msm_drv.h" 16fde5de6cSRob Clark #include "msm_fence.h" 17c8afe684SRob Clark #include "msm_gem.h" 187198e6b0SRob Clark #include "msm_gpu.h" 19871d812aSRob Clark #include "msm_mmu.h" 20c8afe684SRob Clark 213edfa30fSRob Clark static void update_inactive(struct msm_gem_object *msm_obj); 220e08270aSSushmita Susheelendra 23871d812aSRob Clark static dma_addr_t physaddr(struct drm_gem_object *obj) 24871d812aSRob Clark { 25871d812aSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 26871d812aSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 27871d812aSRob Clark return (((dma_addr_t)msm_obj->vram_node->start) << PAGE_SHIFT) + 28871d812aSRob Clark priv->vram.paddr; 29871d812aSRob Clark } 30871d812aSRob Clark 31072f1f91SRob Clark static bool use_pages(struct drm_gem_object *obj) 32072f1f91SRob Clark { 33072f1f91SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 34072f1f91SRob Clark return !msm_obj->vram_node; 35072f1f91SRob Clark } 36072f1f91SRob Clark 373de433c5SRob Clark /* 383de433c5SRob Clark * Cache sync.. this is a bit over-complicated, to fit dma-mapping 393de433c5SRob Clark * API. Really GPU cache is out of scope here (handled on cmdstream) 403de433c5SRob Clark * and all we need to do is invalidate newly allocated pages before 413de433c5SRob Clark * mapping to CPU as uncached/writecombine. 423de433c5SRob Clark * 433de433c5SRob Clark * On top of this, we have the added headache, that depending on 443de433c5SRob Clark * display generation, the display's iommu may be wired up to either 453de433c5SRob Clark * the toplevel drm device (mdss), or to the mdp sub-node, meaning 463de433c5SRob Clark * that here we either have dma-direct or iommu ops. 473de433c5SRob Clark * 483de433c5SRob Clark * Let this be a cautionary tail of abstraction gone wrong. 493de433c5SRob Clark */ 503de433c5SRob Clark 513de433c5SRob Clark static void sync_for_device(struct msm_gem_object *msm_obj) 523de433c5SRob Clark { 533de433c5SRob Clark struct device *dev = msm_obj->base.dev->dev; 543de433c5SRob Clark 557690a33fSMarek Szyprowski dma_map_sgtable(dev, msm_obj->sgt, DMA_BIDIRECTIONAL, 0); 563de433c5SRob Clark } 573de433c5SRob Clark 583de433c5SRob Clark static void sync_for_cpu(struct msm_gem_object *msm_obj) 593de433c5SRob Clark { 603de433c5SRob Clark struct device *dev = msm_obj->base.dev->dev; 613de433c5SRob Clark 627690a33fSMarek Szyprowski dma_unmap_sgtable(dev, msm_obj->sgt, DMA_BIDIRECTIONAL, 0); 633de433c5SRob Clark } 643de433c5SRob Clark 65871d812aSRob Clark /* allocate pages from VRAM carveout, used when no IOMMU: */ 660e08270aSSushmita Susheelendra static struct page **get_pages_vram(struct drm_gem_object *obj, int npages) 67871d812aSRob Clark { 68871d812aSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 69871d812aSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 70871d812aSRob Clark dma_addr_t paddr; 71871d812aSRob Clark struct page **p; 72871d812aSRob Clark int ret, i; 73871d812aSRob Clark 742098105eSMichal Hocko p = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 75871d812aSRob Clark if (!p) 76871d812aSRob Clark return ERR_PTR(-ENOMEM); 77871d812aSRob Clark 780e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 794e64e553SChris Wilson ret = drm_mm_insert_node(&priv->vram.mm, msm_obj->vram_node, npages); 800e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 81871d812aSRob Clark if (ret) { 822098105eSMichal Hocko kvfree(p); 83871d812aSRob Clark return ERR_PTR(ret); 84871d812aSRob Clark } 85871d812aSRob Clark 86871d812aSRob Clark paddr = physaddr(obj); 87871d812aSRob Clark for (i = 0; i < npages; i++) { 88871d812aSRob Clark p[i] = phys_to_page(paddr); 89871d812aSRob Clark paddr += PAGE_SIZE; 90871d812aSRob Clark } 91871d812aSRob Clark 92871d812aSRob Clark return p; 93871d812aSRob Clark } 94c8afe684SRob Clark 95c8afe684SRob Clark static struct page **get_pages(struct drm_gem_object *obj) 96c8afe684SRob Clark { 97c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 98c8afe684SRob Clark 99*07fcad0dSIskren Chernev WARN_ON(!msm_gem_is_locked(obj)); 100*07fcad0dSIskren Chernev 101c8afe684SRob Clark if (!msm_obj->pages) { 102c8afe684SRob Clark struct drm_device *dev = obj->dev; 103871d812aSRob Clark struct page **p; 104c8afe684SRob Clark int npages = obj->size >> PAGE_SHIFT; 105c8afe684SRob Clark 106072f1f91SRob Clark if (use_pages(obj)) 1070cdbe8acSDavid Herrmann p = drm_gem_get_pages(obj); 108871d812aSRob Clark else 109871d812aSRob Clark p = get_pages_vram(obj, npages); 110871d812aSRob Clark 111c8afe684SRob Clark if (IS_ERR(p)) { 1126a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not get pages: %ld\n", 113c8afe684SRob Clark PTR_ERR(p)); 114c8afe684SRob Clark return p; 115c8afe684SRob Clark } 116c8afe684SRob Clark 11762e3a3e3SPrakash Kamliya msm_obj->pages = p; 11862e3a3e3SPrakash Kamliya 119707d561fSGerd Hoffmann msm_obj->sgt = drm_prime_pages_to_sg(obj->dev, p, npages); 1201f70e079SWei Yongjun if (IS_ERR(msm_obj->sgt)) { 12162e3a3e3SPrakash Kamliya void *ptr = ERR_CAST(msm_obj->sgt); 122c8afe684SRob Clark 1236a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "failed to allocate sgt\n"); 12462e3a3e3SPrakash Kamliya msm_obj->sgt = NULL; 12562e3a3e3SPrakash Kamliya return ptr; 12662e3a3e3SPrakash Kamliya } 127c8afe684SRob Clark 128c8afe684SRob Clark /* For non-cached buffers, ensure the new pages are clean 129c8afe684SRob Clark * because display controller, GPU, etc. are not coherent: 130c8afe684SRob Clark */ 131c8afe684SRob Clark if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) 1323de433c5SRob Clark sync_for_device(msm_obj); 133c8afe684SRob Clark } 134c8afe684SRob Clark 135c8afe684SRob Clark return msm_obj->pages; 136c8afe684SRob Clark } 137c8afe684SRob Clark 1380e08270aSSushmita Susheelendra static void put_pages_vram(struct drm_gem_object *obj) 1390e08270aSSushmita Susheelendra { 1400e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 1410e08270aSSushmita Susheelendra struct msm_drm_private *priv = obj->dev->dev_private; 1420e08270aSSushmita Susheelendra 1430e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 1440e08270aSSushmita Susheelendra drm_mm_remove_node(msm_obj->vram_node); 1450e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 1460e08270aSSushmita Susheelendra 1470e08270aSSushmita Susheelendra kvfree(msm_obj->pages); 1480e08270aSSushmita Susheelendra } 1490e08270aSSushmita Susheelendra 150c8afe684SRob Clark static void put_pages(struct drm_gem_object *obj) 151c8afe684SRob Clark { 152c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 153c8afe684SRob Clark 154c8afe684SRob Clark if (msm_obj->pages) { 1553976626eSBen Hutchings if (msm_obj->sgt) { 1563976626eSBen Hutchings /* For non-cached buffers, ensure the new 1573976626eSBen Hutchings * pages are clean because display controller, 1583976626eSBen Hutchings * GPU, etc. are not coherent: 159c8afe684SRob Clark */ 160c8afe684SRob Clark if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) 1613de433c5SRob Clark sync_for_cpu(msm_obj); 16262e3a3e3SPrakash Kamliya 163c8afe684SRob Clark sg_free_table(msm_obj->sgt); 164c8afe684SRob Clark kfree(msm_obj->sgt); 1653976626eSBen Hutchings } 166c8afe684SRob Clark 167072f1f91SRob Clark if (use_pages(obj)) 168c8afe684SRob Clark drm_gem_put_pages(obj, msm_obj->pages, true, false); 1690e08270aSSushmita Susheelendra else 1700e08270aSSushmita Susheelendra put_pages_vram(obj); 171871d812aSRob Clark 172c8afe684SRob Clark msm_obj->pages = NULL; 173c8afe684SRob Clark } 174c8afe684SRob Clark } 175c8afe684SRob Clark 17605b84911SRob Clark struct page **msm_gem_get_pages(struct drm_gem_object *obj) 17705b84911SRob Clark { 1780e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 17905b84911SRob Clark struct page **p; 1800e08270aSSushmita Susheelendra 181a6ae74c9SRob Clark msm_gem_lock(obj); 1820e08270aSSushmita Susheelendra 1830e08270aSSushmita Susheelendra if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 184a6ae74c9SRob Clark msm_gem_unlock(obj); 1850e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 1860e08270aSSushmita Susheelendra } 1870e08270aSSushmita Susheelendra 18805b84911SRob Clark p = get_pages(obj); 189a6ae74c9SRob Clark msm_gem_unlock(obj); 19005b84911SRob Clark return p; 19105b84911SRob Clark } 19205b84911SRob Clark 19305b84911SRob Clark void msm_gem_put_pages(struct drm_gem_object *obj) 19405b84911SRob Clark { 19505b84911SRob Clark /* when we start tracking the pin count, then do something here */ 19605b84911SRob Clark } 19705b84911SRob Clark 198c8afe684SRob Clark int msm_gem_mmap_obj(struct drm_gem_object *obj, 199c8afe684SRob Clark struct vm_area_struct *vma) 200c8afe684SRob Clark { 201c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 202c8afe684SRob Clark 203c8afe684SRob Clark vma->vm_flags &= ~VM_PFNMAP; 204c8afe684SRob Clark vma->vm_flags |= VM_MIXEDMAP; 205c8afe684SRob Clark 206c8afe684SRob Clark if (msm_obj->flags & MSM_BO_WC) { 207c8afe684SRob Clark vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); 208c8afe684SRob Clark } else if (msm_obj->flags & MSM_BO_UNCACHED) { 209c8afe684SRob Clark vma->vm_page_prot = pgprot_noncached(vm_get_page_prot(vma->vm_flags)); 210c8afe684SRob Clark } else { 211c8afe684SRob Clark /* 212c8afe684SRob Clark * Shunt off cached objs to shmem file so they have their own 213c8afe684SRob Clark * address_space (so unmap_mapping_range does what we want, 214c8afe684SRob Clark * in particular in the case of mmap'd dmabufs) 215c8afe684SRob Clark */ 216c8afe684SRob Clark fput(vma->vm_file); 217c8afe684SRob Clark get_file(obj->filp); 218c8afe684SRob Clark vma->vm_pgoff = 0; 219c8afe684SRob Clark vma->vm_file = obj->filp; 220c8afe684SRob Clark 221c8afe684SRob Clark vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); 222c8afe684SRob Clark } 223c8afe684SRob Clark 224c8afe684SRob Clark return 0; 225c8afe684SRob Clark } 226c8afe684SRob Clark 227c8afe684SRob Clark int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma) 228c8afe684SRob Clark { 229c8afe684SRob Clark int ret; 230c8afe684SRob Clark 231c8afe684SRob Clark ret = drm_gem_mmap(filp, vma); 232c8afe684SRob Clark if (ret) { 233c8afe684SRob Clark DBG("mmap failed: %d", ret); 234c8afe684SRob Clark return ret; 235c8afe684SRob Clark } 236c8afe684SRob Clark 237c8afe684SRob Clark return msm_gem_mmap_obj(vma->vm_private_data, vma); 238c8afe684SRob Clark } 239c8afe684SRob Clark 240a5f74ec7SSouptick Joarder vm_fault_t msm_gem_fault(struct vm_fault *vmf) 241c8afe684SRob Clark { 24211bac800SDave Jiang struct vm_area_struct *vma = vmf->vma; 243c8afe684SRob Clark struct drm_gem_object *obj = vma->vm_private_data; 2440e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 245c8afe684SRob Clark struct page **pages; 246c8afe684SRob Clark unsigned long pfn; 247c8afe684SRob Clark pgoff_t pgoff; 248a5f74ec7SSouptick Joarder int err; 249a5f74ec7SSouptick Joarder vm_fault_t ret; 250c8afe684SRob Clark 2510e08270aSSushmita Susheelendra /* 2520e08270aSSushmita Susheelendra * vm_ops.open/drm_gem_mmap_obj and close get and put 2530e08270aSSushmita Susheelendra * a reference on obj. So, we dont need to hold one here. 254d78d383aSRob Clark */ 255a6ae74c9SRob Clark err = msm_gem_lock_interruptible(obj); 256a5f74ec7SSouptick Joarder if (err) { 257a5f74ec7SSouptick Joarder ret = VM_FAULT_NOPAGE; 258c8afe684SRob Clark goto out; 259a5f74ec7SSouptick Joarder } 260c8afe684SRob Clark 2610e08270aSSushmita Susheelendra if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 262a6ae74c9SRob Clark msm_gem_unlock(obj); 2630e08270aSSushmita Susheelendra return VM_FAULT_SIGBUS; 2640e08270aSSushmita Susheelendra } 2650e08270aSSushmita Susheelendra 266c8afe684SRob Clark /* make sure we have pages attached now */ 267c8afe684SRob Clark pages = get_pages(obj); 268c8afe684SRob Clark if (IS_ERR(pages)) { 269a5f74ec7SSouptick Joarder ret = vmf_error(PTR_ERR(pages)); 270c8afe684SRob Clark goto out_unlock; 271c8afe684SRob Clark } 272c8afe684SRob Clark 273c8afe684SRob Clark /* We don't use vmf->pgoff since that has the fake offset: */ 2741a29d85eSJan Kara pgoff = (vmf->address - vma->vm_start) >> PAGE_SHIFT; 275c8afe684SRob Clark 276871d812aSRob Clark pfn = page_to_pfn(pages[pgoff]); 277c8afe684SRob Clark 2781a29d85eSJan Kara VERB("Inserting %p pfn %lx, pa %lx", (void *)vmf->address, 279c8afe684SRob Clark pfn, pfn << PAGE_SHIFT); 280c8afe684SRob Clark 281a5f74ec7SSouptick Joarder ret = vmf_insert_mixed(vma, vmf->address, __pfn_to_pfn_t(pfn, PFN_DEV)); 282c8afe684SRob Clark out_unlock: 283a6ae74c9SRob Clark msm_gem_unlock(obj); 284c8afe684SRob Clark out: 285a5f74ec7SSouptick Joarder return ret; 286c8afe684SRob Clark } 287c8afe684SRob Clark 288c8afe684SRob Clark /** get mmap offset */ 289c8afe684SRob Clark static uint64_t mmap_offset(struct drm_gem_object *obj) 290c8afe684SRob Clark { 291c8afe684SRob Clark struct drm_device *dev = obj->dev; 292c8afe684SRob Clark int ret; 293c8afe684SRob Clark 294a6ae74c9SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 295c8afe684SRob Clark 296c8afe684SRob Clark /* Make it mmapable */ 297c8afe684SRob Clark ret = drm_gem_create_mmap_offset(obj); 298c8afe684SRob Clark 299c8afe684SRob Clark if (ret) { 3006a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not allocate mmap offset\n"); 301c8afe684SRob Clark return 0; 302c8afe684SRob Clark } 303c8afe684SRob Clark 304c8afe684SRob Clark return drm_vma_node_offset_addr(&obj->vma_node); 305c8afe684SRob Clark } 306c8afe684SRob Clark 307c8afe684SRob Clark uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj) 308c8afe684SRob Clark { 309c8afe684SRob Clark uint64_t offset; 3100e08270aSSushmita Susheelendra 311a6ae74c9SRob Clark msm_gem_lock(obj); 312c8afe684SRob Clark offset = mmap_offset(obj); 313a6ae74c9SRob Clark msm_gem_unlock(obj); 314c8afe684SRob Clark return offset; 315c8afe684SRob Clark } 316c8afe684SRob Clark 3174b85f7f5SRob Clark static struct msm_gem_vma *add_vma(struct drm_gem_object *obj, 3184b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3194b85f7f5SRob Clark { 3204b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3214b85f7f5SRob Clark struct msm_gem_vma *vma; 3224b85f7f5SRob Clark 323a6ae74c9SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 3240e08270aSSushmita Susheelendra 3254b85f7f5SRob Clark vma = kzalloc(sizeof(*vma), GFP_KERNEL); 3264b85f7f5SRob Clark if (!vma) 3274b85f7f5SRob Clark return ERR_PTR(-ENOMEM); 3284b85f7f5SRob Clark 3294b85f7f5SRob Clark vma->aspace = aspace; 3304b85f7f5SRob Clark 3314b85f7f5SRob Clark list_add_tail(&vma->list, &msm_obj->vmas); 3324b85f7f5SRob Clark 3334b85f7f5SRob Clark return vma; 3344b85f7f5SRob Clark } 3354b85f7f5SRob Clark 3364b85f7f5SRob Clark static struct msm_gem_vma *lookup_vma(struct drm_gem_object *obj, 3374b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3384b85f7f5SRob Clark { 3394b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3404b85f7f5SRob Clark struct msm_gem_vma *vma; 3414b85f7f5SRob Clark 342a6ae74c9SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 3434b85f7f5SRob Clark 3444b85f7f5SRob Clark list_for_each_entry(vma, &msm_obj->vmas, list) { 3454b85f7f5SRob Clark if (vma->aspace == aspace) 3464b85f7f5SRob Clark return vma; 3474b85f7f5SRob Clark } 3484b85f7f5SRob Clark 3494b85f7f5SRob Clark return NULL; 3504b85f7f5SRob Clark } 3514b85f7f5SRob Clark 3524b85f7f5SRob Clark static void del_vma(struct msm_gem_vma *vma) 3534b85f7f5SRob Clark { 3544b85f7f5SRob Clark if (!vma) 3554b85f7f5SRob Clark return; 3564b85f7f5SRob Clark 3574b85f7f5SRob Clark list_del(&vma->list); 3584b85f7f5SRob Clark kfree(vma); 3594b85f7f5SRob Clark } 3604b85f7f5SRob Clark 361a6ae74c9SRob Clark /* Called with msm_obj locked */ 3624fe5f65eSRob Clark static void 3639b73bde3SIskren Chernev put_iova_spaces(struct drm_gem_object *obj) 3649b73bde3SIskren Chernev { 3659b73bde3SIskren Chernev struct msm_gem_object *msm_obj = to_msm_bo(obj); 3669b73bde3SIskren Chernev struct msm_gem_vma *vma; 3679b73bde3SIskren Chernev 3689b73bde3SIskren Chernev WARN_ON(!msm_gem_is_locked(obj)); 3699b73bde3SIskren Chernev 3709b73bde3SIskren Chernev list_for_each_entry(vma, &msm_obj->vmas, list) { 3719b73bde3SIskren Chernev if (vma->aspace) { 3729b73bde3SIskren Chernev msm_gem_purge_vma(vma->aspace, vma); 3739b73bde3SIskren Chernev msm_gem_close_vma(vma->aspace, vma); 3749b73bde3SIskren Chernev } 3759b73bde3SIskren Chernev } 3769b73bde3SIskren Chernev } 3779b73bde3SIskren Chernev 3789b73bde3SIskren Chernev /* Called with msm_obj locked */ 3799b73bde3SIskren Chernev static void 3809b73bde3SIskren Chernev put_iova_vmas(struct drm_gem_object *obj) 3814fe5f65eSRob Clark { 3824fe5f65eSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3834b85f7f5SRob Clark struct msm_gem_vma *vma, *tmp; 3844fe5f65eSRob Clark 385a6ae74c9SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 3864fe5f65eSRob Clark 3874b85f7f5SRob Clark list_for_each_entry_safe(vma, tmp, &msm_obj->vmas, list) { 3884b85f7f5SRob Clark del_vma(vma); 3894fe5f65eSRob Clark } 3904fe5f65eSRob Clark } 3914fe5f65eSRob Clark 3928117e5e5SRob Clark static int get_iova_locked(struct drm_gem_object *obj, 393d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova, 394d3b8877eSJonathan Marek u64 range_start, u64 range_end) 395c8afe684SRob Clark { 3964b85f7f5SRob Clark struct msm_gem_vma *vma; 397c8afe684SRob Clark int ret = 0; 398c8afe684SRob Clark 399a6ae74c9SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 400cb1e3818SRob Clark 4014b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 402871d812aSRob Clark 4034b85f7f5SRob Clark if (!vma) { 4044b85f7f5SRob Clark vma = add_vma(obj, aspace); 405c0ee9794SJordan Crouse if (IS_ERR(vma)) 406c0ee9794SJordan Crouse return PTR_ERR(vma); 4074b85f7f5SRob Clark 408d3b8877eSJonathan Marek ret = msm_gem_init_vma(aspace, vma, obj->size >> PAGE_SHIFT, 409d3b8877eSJonathan Marek range_start, range_end); 410c0ee9794SJordan Crouse if (ret) { 411c0ee9794SJordan Crouse del_vma(vma); 412c0ee9794SJordan Crouse return ret; 413c8afe684SRob Clark } 4144b85f7f5SRob Clark } 4154b85f7f5SRob Clark 4164b85f7f5SRob Clark *iova = vma->iova; 4174b85f7f5SRob Clark return 0; 418c0ee9794SJordan Crouse } 4194b85f7f5SRob Clark 420c0ee9794SJordan Crouse static int msm_gem_pin_iova(struct drm_gem_object *obj, 421c0ee9794SJordan Crouse struct msm_gem_address_space *aspace) 422c0ee9794SJordan Crouse { 423c0ee9794SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 424c0ee9794SJordan Crouse struct msm_gem_vma *vma; 425c0ee9794SJordan Crouse struct page **pages; 426bbc2cd07SRob Clark int prot = IOMMU_READ; 427bbc2cd07SRob Clark 428bbc2cd07SRob Clark if (!(msm_obj->flags & MSM_BO_GPU_READONLY)) 429bbc2cd07SRob Clark prot |= IOMMU_WRITE; 430c0ee9794SJordan Crouse 4310b462d7aSJonathan Marek if (msm_obj->flags & MSM_BO_MAP_PRIV) 4320b462d7aSJonathan Marek prot |= IOMMU_PRIV; 4330b462d7aSJonathan Marek 434a6ae74c9SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 435c0ee9794SJordan Crouse 436c0ee9794SJordan Crouse if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) 437c0ee9794SJordan Crouse return -EBUSY; 438c0ee9794SJordan Crouse 439c0ee9794SJordan Crouse vma = lookup_vma(obj, aspace); 440c0ee9794SJordan Crouse if (WARN_ON(!vma)) 441c0ee9794SJordan Crouse return -EINVAL; 442c0ee9794SJordan Crouse 443c0ee9794SJordan Crouse pages = get_pages(obj); 444c0ee9794SJordan Crouse if (IS_ERR(pages)) 445c0ee9794SJordan Crouse return PTR_ERR(pages); 446c0ee9794SJordan Crouse 447bbc2cd07SRob Clark return msm_gem_map_vma(aspace, vma, prot, 448bbc2cd07SRob Clark msm_obj->sgt, obj->size >> PAGE_SHIFT); 449c0ee9794SJordan Crouse } 450c0ee9794SJordan Crouse 451e4b87d22SRob Clark static int get_and_pin_iova_range_locked(struct drm_gem_object *obj, 452d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova, 453d3b8877eSJonathan Marek u64 range_start, u64 range_end) 454c0ee9794SJordan Crouse { 455c0ee9794SJordan Crouse u64 local; 456c0ee9794SJordan Crouse int ret; 457c0ee9794SJordan Crouse 458e4b87d22SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 459c0ee9794SJordan Crouse 4608117e5e5SRob Clark ret = get_iova_locked(obj, aspace, &local, 461d3b8877eSJonathan Marek range_start, range_end); 462c0ee9794SJordan Crouse 463c0ee9794SJordan Crouse if (!ret) 464c0ee9794SJordan Crouse ret = msm_gem_pin_iova(obj, aspace); 465c0ee9794SJordan Crouse 466c0ee9794SJordan Crouse if (!ret) 467c0ee9794SJordan Crouse *iova = local; 468c0ee9794SJordan Crouse 469c8afe684SRob Clark return ret; 470c8afe684SRob Clark } 471c8afe684SRob Clark 472e4b87d22SRob Clark /* 473e4b87d22SRob Clark * get iova and pin it. Should have a matching put 474e4b87d22SRob Clark * limits iova to specified range (in pages) 475e4b87d22SRob Clark */ 476e4b87d22SRob Clark int msm_gem_get_and_pin_iova_range(struct drm_gem_object *obj, 477e4b87d22SRob Clark struct msm_gem_address_space *aspace, uint64_t *iova, 478e4b87d22SRob Clark u64 range_start, u64 range_end) 479e4b87d22SRob Clark { 480e4b87d22SRob Clark int ret; 481e4b87d22SRob Clark 482e4b87d22SRob Clark msm_gem_lock(obj); 483e4b87d22SRob Clark ret = get_and_pin_iova_range_locked(obj, aspace, iova, range_start, range_end); 484e4b87d22SRob Clark msm_gem_unlock(obj); 485e4b87d22SRob Clark 486e4b87d22SRob Clark return ret; 487e4b87d22SRob Clark } 488e4b87d22SRob Clark 489e4b87d22SRob Clark int msm_gem_get_and_pin_iova_locked(struct drm_gem_object *obj, 490e4b87d22SRob Clark struct msm_gem_address_space *aspace, uint64_t *iova) 491e4b87d22SRob Clark { 492e4b87d22SRob Clark return get_and_pin_iova_range_locked(obj, aspace, iova, 0, U64_MAX); 493e4b87d22SRob Clark } 494e4b87d22SRob Clark 495d3b8877eSJonathan Marek /* get iova and pin it. Should have a matching put */ 496d3b8877eSJonathan Marek int msm_gem_get_and_pin_iova(struct drm_gem_object *obj, 497d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova) 498d3b8877eSJonathan Marek { 499d3b8877eSJonathan Marek return msm_gem_get_and_pin_iova_range(obj, aspace, iova, 0, U64_MAX); 500d3b8877eSJonathan Marek } 501d3b8877eSJonathan Marek 5027ad0e8cfSJordan Crouse /* 5037ad0e8cfSJordan Crouse * Get an iova but don't pin it. Doesn't need a put because iovas are currently 5047ad0e8cfSJordan Crouse * valid for the life of the object 5057ad0e8cfSJordan Crouse */ 5069fe041f6SJordan Crouse int msm_gem_get_iova(struct drm_gem_object *obj, 5079fe041f6SJordan Crouse struct msm_gem_address_space *aspace, uint64_t *iova) 5089fe041f6SJordan Crouse { 5099fe041f6SJordan Crouse int ret; 5109fe041f6SJordan Crouse 511a6ae74c9SRob Clark msm_gem_lock(obj); 5128117e5e5SRob Clark ret = get_iova_locked(obj, aspace, iova, 0, U64_MAX); 513a6ae74c9SRob Clark msm_gem_unlock(obj); 5149fe041f6SJordan Crouse 5159fe041f6SJordan Crouse return ret; 5169fe041f6SJordan Crouse } 5179fe041f6SJordan Crouse 5182638d90aSRob Clark /* get iova without taking a reference, used in places where you have 5199fe041f6SJordan Crouse * already done a 'msm_gem_get_and_pin_iova' or 'msm_gem_get_iova' 5202638d90aSRob Clark */ 5218bdcd949SRob Clark uint64_t msm_gem_iova(struct drm_gem_object *obj, 5228bdcd949SRob Clark struct msm_gem_address_space *aspace) 5232638d90aSRob Clark { 5244b85f7f5SRob Clark struct msm_gem_vma *vma; 5254b85f7f5SRob Clark 526a6ae74c9SRob Clark msm_gem_lock(obj); 5274b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 528a6ae74c9SRob Clark msm_gem_unlock(obj); 5294b85f7f5SRob Clark WARN_ON(!vma); 5304b85f7f5SRob Clark 5314b85f7f5SRob Clark return vma ? vma->iova : 0; 5322638d90aSRob Clark } 5332638d90aSRob Clark 5347ad0e8cfSJordan Crouse /* 535e4b87d22SRob Clark * Locked variant of msm_gem_unpin_iova() 536e4b87d22SRob Clark */ 537e4b87d22SRob Clark void msm_gem_unpin_iova_locked(struct drm_gem_object *obj, 538e4b87d22SRob Clark struct msm_gem_address_space *aspace) 539e4b87d22SRob Clark { 540e4b87d22SRob Clark struct msm_gem_vma *vma; 541e4b87d22SRob Clark 542e4b87d22SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 543e4b87d22SRob Clark 544e4b87d22SRob Clark vma = lookup_vma(obj, aspace); 545e4b87d22SRob Clark 546e4b87d22SRob Clark if (!WARN_ON(!vma)) 547e4b87d22SRob Clark msm_gem_unmap_vma(aspace, vma); 548e4b87d22SRob Clark } 549e4b87d22SRob Clark 550e4b87d22SRob Clark /* 5517ad0e8cfSJordan Crouse * Unpin a iova by updating the reference counts. The memory isn't actually 5527ad0e8cfSJordan Crouse * purged until something else (shrinker, mm_notifier, destroy, etc) decides 5537ad0e8cfSJordan Crouse * to get rid of it 5547ad0e8cfSJordan Crouse */ 5557ad0e8cfSJordan Crouse void msm_gem_unpin_iova(struct drm_gem_object *obj, 5568bdcd949SRob Clark struct msm_gem_address_space *aspace) 557c8afe684SRob Clark { 558a6ae74c9SRob Clark msm_gem_lock(obj); 559e4b87d22SRob Clark msm_gem_unpin_iova_locked(obj, aspace); 560a6ae74c9SRob Clark msm_gem_unlock(obj); 561c8afe684SRob Clark } 562c8afe684SRob Clark 563c8afe684SRob Clark int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 564c8afe684SRob Clark struct drm_mode_create_dumb *args) 565c8afe684SRob Clark { 566c8afe684SRob Clark args->pitch = align_pitch(args->width, args->bpp); 567c8afe684SRob Clark args->size = PAGE_ALIGN(args->pitch * args->height); 568c8afe684SRob Clark return msm_gem_new_handle(dev, file, args->size, 5690815d774SJordan Crouse MSM_BO_SCANOUT | MSM_BO_WC, &args->handle, "dumb"); 570c8afe684SRob Clark } 571c8afe684SRob Clark 572c8afe684SRob Clark int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 573c8afe684SRob Clark uint32_t handle, uint64_t *offset) 574c8afe684SRob Clark { 575c8afe684SRob Clark struct drm_gem_object *obj; 576c8afe684SRob Clark int ret = 0; 577c8afe684SRob Clark 578c8afe684SRob Clark /* GEM does all our handle to object mapping */ 579a8ad0bd8SChris Wilson obj = drm_gem_object_lookup(file, handle); 580c8afe684SRob Clark if (obj == NULL) { 581c8afe684SRob Clark ret = -ENOENT; 582c8afe684SRob Clark goto fail; 583c8afe684SRob Clark } 584c8afe684SRob Clark 585c8afe684SRob Clark *offset = msm_gem_mmap_offset(obj); 586c8afe684SRob Clark 587f7d33950SEmil Velikov drm_gem_object_put(obj); 588c8afe684SRob Clark 589c8afe684SRob Clark fail: 590c8afe684SRob Clark return ret; 591c8afe684SRob Clark } 592c8afe684SRob Clark 593fad33f4bSRob Clark static void *get_vaddr(struct drm_gem_object *obj, unsigned madv) 594c8afe684SRob Clark { 5950e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 5960e08270aSSushmita Susheelendra int ret = 0; 5970e08270aSSushmita Susheelendra 598e4b87d22SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 599e4b87d22SRob Clark 6008b6b7d84SDaniel Vetter if (obj->import_attach) 6018b6b7d84SDaniel Vetter return ERR_PTR(-ENODEV); 6028b6b7d84SDaniel Vetter 603fad33f4bSRob Clark if (WARN_ON(msm_obj->madv > madv)) { 6046a41da17SMamta Shukla DRM_DEV_ERROR(obj->dev->dev, "Invalid madv state: %u vs %u\n", 605fad33f4bSRob Clark msm_obj->madv, madv); 6060e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 607c8afe684SRob Clark } 608c8afe684SRob Clark 6090e08270aSSushmita Susheelendra /* increment vmap_count *before* vmap() call, so shrinker can 610a6ae74c9SRob Clark * check vmap_count (is_vunmapable()) outside of msm_obj lock. 6110e08270aSSushmita Susheelendra * This guarantees that we won't try to msm_gem_vunmap() this 6120e08270aSSushmita Susheelendra * same object from within the vmap() call (while we already 613a6ae74c9SRob Clark * hold msm_obj lock) 6140e08270aSSushmita Susheelendra */ 6150e08270aSSushmita Susheelendra msm_obj->vmap_count++; 6160e08270aSSushmita Susheelendra 6170e08270aSSushmita Susheelendra if (!msm_obj->vaddr) { 6180e08270aSSushmita Susheelendra struct page **pages = get_pages(obj); 6190e08270aSSushmita Susheelendra if (IS_ERR(pages)) { 6200e08270aSSushmita Susheelendra ret = PTR_ERR(pages); 6210e08270aSSushmita Susheelendra goto fail; 6220e08270aSSushmita Susheelendra } 6230e08270aSSushmita Susheelendra msm_obj->vaddr = vmap(pages, obj->size >> PAGE_SHIFT, 6240e08270aSSushmita Susheelendra VM_MAP, pgprot_writecombine(PAGE_KERNEL)); 6250e08270aSSushmita Susheelendra if (msm_obj->vaddr == NULL) { 6260e08270aSSushmita Susheelendra ret = -ENOMEM; 6270e08270aSSushmita Susheelendra goto fail; 6280e08270aSSushmita Susheelendra } 6290e08270aSSushmita Susheelendra } 6300e08270aSSushmita Susheelendra 6310e08270aSSushmita Susheelendra return msm_obj->vaddr; 6320e08270aSSushmita Susheelendra 6330e08270aSSushmita Susheelendra fail: 634e1e9db2cSRob Clark msm_obj->vmap_count--; 6350e08270aSSushmita Susheelendra return ERR_PTR(ret); 63618f23049SRob Clark } 63718f23049SRob Clark 638e4b87d22SRob Clark void *msm_gem_get_vaddr_locked(struct drm_gem_object *obj) 639e4b87d22SRob Clark { 640e4b87d22SRob Clark return get_vaddr(obj, MSM_MADV_WILLNEED); 641e4b87d22SRob Clark } 642e4b87d22SRob Clark 643fad33f4bSRob Clark void *msm_gem_get_vaddr(struct drm_gem_object *obj) 644fad33f4bSRob Clark { 645e4b87d22SRob Clark void *ret; 646e4b87d22SRob Clark 647e4b87d22SRob Clark msm_gem_lock(obj); 648e4b87d22SRob Clark ret = msm_gem_get_vaddr_locked(obj); 649e4b87d22SRob Clark msm_gem_unlock(obj); 650e4b87d22SRob Clark 651e4b87d22SRob Clark return ret; 652fad33f4bSRob Clark } 653fad33f4bSRob Clark 654fad33f4bSRob Clark /* 655fad33f4bSRob Clark * Don't use this! It is for the very special case of dumping 656fad33f4bSRob Clark * submits from GPU hangs or faults, were the bo may already 657fad33f4bSRob Clark * be MSM_MADV_DONTNEED, but we know the buffer is still on the 658fad33f4bSRob Clark * active list. 659fad33f4bSRob Clark */ 660fad33f4bSRob Clark void *msm_gem_get_vaddr_active(struct drm_gem_object *obj) 661fad33f4bSRob Clark { 6626c0e3ea2SRob Clark return get_vaddr(obj, __MSM_MADV_PURGED); 663e4b87d22SRob Clark } 664e4b87d22SRob Clark 665e4b87d22SRob Clark void msm_gem_put_vaddr_locked(struct drm_gem_object *obj) 666e4b87d22SRob Clark { 667e4b87d22SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 668e4b87d22SRob Clark 669e4b87d22SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 670e4b87d22SRob Clark WARN_ON(msm_obj->vmap_count < 1); 671e4b87d22SRob Clark 672e4b87d22SRob Clark msm_obj->vmap_count--; 673fad33f4bSRob Clark } 674fad33f4bSRob Clark 67518f23049SRob Clark void msm_gem_put_vaddr(struct drm_gem_object *obj) 67618f23049SRob Clark { 677a6ae74c9SRob Clark msm_gem_lock(obj); 678e4b87d22SRob Clark msm_gem_put_vaddr_locked(obj); 679a6ae74c9SRob Clark msm_gem_unlock(obj); 68018f23049SRob Clark } 68118f23049SRob Clark 6824cd33c48SRob Clark /* Update madvise status, returns true if not purged, else 6834cd33c48SRob Clark * false or -errno. 6844cd33c48SRob Clark */ 6854cd33c48SRob Clark int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv) 6864cd33c48SRob Clark { 6874cd33c48SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 6884cd33c48SRob Clark 689a6ae74c9SRob Clark msm_gem_lock(obj); 6900e08270aSSushmita Susheelendra 6914cd33c48SRob Clark if (msm_obj->madv != __MSM_MADV_PURGED) 6924cd33c48SRob Clark msm_obj->madv = madv; 6934cd33c48SRob Clark 6940e08270aSSushmita Susheelendra madv = msm_obj->madv; 6950e08270aSSushmita Susheelendra 6963edfa30fSRob Clark /* If the obj is inactive, we might need to move it 6973edfa30fSRob Clark * between inactive lists 6983edfa30fSRob Clark */ 6993edfa30fSRob Clark if (msm_obj->active_count == 0) 7003edfa30fSRob Clark update_inactive(msm_obj); 7013edfa30fSRob Clark 702a6ae74c9SRob Clark msm_gem_unlock(obj); 7030e08270aSSushmita Susheelendra 7040e08270aSSushmita Susheelendra return (madv != __MSM_MADV_PURGED); 7054cd33c48SRob Clark } 7064cd33c48SRob Clark 707599089c6SRob Clark void msm_gem_purge(struct drm_gem_object *obj) 70868209390SRob Clark { 70968209390SRob Clark struct drm_device *dev = obj->dev; 71068209390SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 71168209390SRob Clark 71268209390SRob Clark WARN_ON(!is_purgeable(msm_obj)); 71368209390SRob Clark WARN_ON(obj->import_attach); 71468209390SRob Clark 7159b73bde3SIskren Chernev put_iova_spaces(obj); 71668209390SRob Clark 717599089c6SRob Clark msm_gem_vunmap(obj); 71868209390SRob Clark 71968209390SRob Clark put_pages(obj); 72068209390SRob Clark 7219b73bde3SIskren Chernev put_iova_vmas(obj); 7229b73bde3SIskren Chernev 72368209390SRob Clark msm_obj->madv = __MSM_MADV_PURGED; 72468209390SRob Clark 72568209390SRob Clark drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); 72668209390SRob Clark drm_gem_free_mmap_offset(obj); 72768209390SRob Clark 72868209390SRob Clark /* Our goal here is to return as much of the memory as 72968209390SRob Clark * is possible back to the system as we are called from OOM. 73068209390SRob Clark * To do this we must instruct the shmfs to drop all of its 73168209390SRob Clark * backing pages, *now*. 73268209390SRob Clark */ 73368209390SRob Clark shmem_truncate_range(file_inode(obj->filp), 0, (loff_t)-1); 73468209390SRob Clark 73568209390SRob Clark invalidate_mapping_pages(file_inode(obj->filp)->i_mapping, 73668209390SRob Clark 0, (loff_t)-1); 73768209390SRob Clark } 73868209390SRob Clark 739599089c6SRob Clark void msm_gem_vunmap(struct drm_gem_object *obj) 740e1e9db2cSRob Clark { 741e1e9db2cSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 742e1e9db2cSRob Clark 743a6ae74c9SRob Clark WARN_ON(!msm_gem_is_locked(obj)); 7440e08270aSSushmita Susheelendra 745e1e9db2cSRob Clark if (!msm_obj->vaddr || WARN_ON(!is_vunmapable(msm_obj))) 746e1e9db2cSRob Clark return; 747e1e9db2cSRob Clark 748e1e9db2cSRob Clark vunmap(msm_obj->vaddr); 749e1e9db2cSRob Clark msm_obj->vaddr = NULL; 750e1e9db2cSRob Clark } 751e1e9db2cSRob Clark 752b6295f9aSRob Clark /* must be called before _move_to_active().. */ 753b6295f9aSRob Clark int msm_gem_sync_object(struct drm_gem_object *obj, 754b6295f9aSRob Clark struct msm_fence_context *fctx, bool exclusive) 755b6295f9aSRob Clark { 75652791eeeSChristian König struct dma_resv_list *fobj; 757f54d1867SChris Wilson struct dma_fence *fence; 758b6295f9aSRob Clark int i, ret; 759b6295f9aSRob Clark 76052791eeeSChristian König fobj = dma_resv_get_list(obj->resv); 761b6295f9aSRob Clark if (!fobj || (fobj->shared_count == 0)) { 76252791eeeSChristian König fence = dma_resv_get_excl(obj->resv); 763b6295f9aSRob Clark /* don't need to wait on our own fences, since ring is fifo */ 764b6295f9aSRob Clark if (fence && (fence->context != fctx->context)) { 765f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 766b6295f9aSRob Clark if (ret) 767b6295f9aSRob Clark return ret; 768b6295f9aSRob Clark } 769b6295f9aSRob Clark } 770b6295f9aSRob Clark 771b6295f9aSRob Clark if (!exclusive || !fobj) 772b6295f9aSRob Clark return 0; 773b6295f9aSRob Clark 774b6295f9aSRob Clark for (i = 0; i < fobj->shared_count; i++) { 775b6295f9aSRob Clark fence = rcu_dereference_protected(fobj->shared[i], 77652791eeeSChristian König dma_resv_held(obj->resv)); 777b6295f9aSRob Clark if (fence->context != fctx->context) { 778f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 779b6295f9aSRob Clark if (ret) 780b6295f9aSRob Clark return ret; 781b6295f9aSRob Clark } 782b6295f9aSRob Clark } 783b6295f9aSRob Clark 784b6295f9aSRob Clark return 0; 785b6295f9aSRob Clark } 786b6295f9aSRob Clark 7879d8baa2bSAkhil P Oommen void msm_gem_active_get(struct drm_gem_object *obj, struct msm_gpu *gpu) 7887198e6b0SRob Clark { 7897198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 790d984457bSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 791d984457bSRob Clark 792d984457bSRob Clark might_sleep(); 793f92f026aSRob Clark WARN_ON(!msm_gem_is_locked(obj)); 7944cd33c48SRob Clark WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED); 7959d8baa2bSAkhil P Oommen 796ab5c54cbSRob Clark if (msm_obj->active_count++ == 0) { 797d984457bSRob Clark mutex_lock(&priv->mm_lock); 7987198e6b0SRob Clark list_del_init(&msm_obj->mm_list); 7997198e6b0SRob Clark list_add_tail(&msm_obj->mm_list, &gpu->active_list); 800d984457bSRob Clark mutex_unlock(&priv->mm_lock); 8017198e6b0SRob Clark } 8029d8baa2bSAkhil P Oommen } 8037198e6b0SRob Clark 8049d8baa2bSAkhil P Oommen void msm_gem_active_put(struct drm_gem_object *obj) 8057198e6b0SRob Clark { 8067198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 8077198e6b0SRob Clark 808d984457bSRob Clark might_sleep(); 809ab5c54cbSRob Clark WARN_ON(!msm_gem_is_locked(obj)); 8107198e6b0SRob Clark 811ab5c54cbSRob Clark if (--msm_obj->active_count == 0) { 8123edfa30fSRob Clark update_inactive(msm_obj); 8137198e6b0SRob Clark } 8149d8baa2bSAkhil P Oommen } 8157198e6b0SRob Clark 8163edfa30fSRob Clark static void update_inactive(struct msm_gem_object *msm_obj) 8173edfa30fSRob Clark { 8183edfa30fSRob Clark struct msm_drm_private *priv = msm_obj->base.dev->dev_private; 8193edfa30fSRob Clark 8203edfa30fSRob Clark mutex_lock(&priv->mm_lock); 8213edfa30fSRob Clark WARN_ON(msm_obj->active_count != 0); 8223edfa30fSRob Clark 8233edfa30fSRob Clark list_del_init(&msm_obj->mm_list); 8243edfa30fSRob Clark if (msm_obj->madv == MSM_MADV_WILLNEED) 8253edfa30fSRob Clark list_add_tail(&msm_obj->mm_list, &priv->inactive_willneed); 8263edfa30fSRob Clark else 8273edfa30fSRob Clark list_add_tail(&msm_obj->mm_list, &priv->inactive_dontneed); 8283edfa30fSRob Clark 8293edfa30fSRob Clark mutex_unlock(&priv->mm_lock); 8303edfa30fSRob Clark } 8313edfa30fSRob Clark 832ba00c3f2SRob Clark int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout) 833ba00c3f2SRob Clark { 834b6295f9aSRob Clark bool write = !!(op & MSM_PREP_WRITE); 835f755e227SChris Wilson unsigned long remain = 836f755e227SChris Wilson op & MSM_PREP_NOSYNC ? 0 : timeout_to_jiffies(timeout); 837f755e227SChris Wilson long ret; 838b6295f9aSRob Clark 83952791eeeSChristian König ret = dma_resv_wait_timeout_rcu(obj->resv, write, 840f755e227SChris Wilson true, remain); 841f755e227SChris Wilson if (ret == 0) 842f755e227SChris Wilson return remain == 0 ? -EBUSY : -ETIMEDOUT; 843f755e227SChris Wilson else if (ret < 0) 844f755e227SChris Wilson return ret; 845ba00c3f2SRob Clark 8467198e6b0SRob Clark /* TODO cache maintenance */ 8477198e6b0SRob Clark 848b6295f9aSRob Clark return 0; 8497198e6b0SRob Clark } 8507198e6b0SRob Clark 8517198e6b0SRob Clark int msm_gem_cpu_fini(struct drm_gem_object *obj) 8527198e6b0SRob Clark { 8537198e6b0SRob Clark /* TODO cache maintenance */ 854c8afe684SRob Clark return 0; 855c8afe684SRob Clark } 856c8afe684SRob Clark 857c8afe684SRob Clark #ifdef CONFIG_DEBUG_FS 858f54d1867SChris Wilson static void describe_fence(struct dma_fence *fence, const char *type, 859b6295f9aSRob Clark struct seq_file *m) 860b6295f9aSRob Clark { 861f54d1867SChris Wilson if (!dma_fence_is_signaled(fence)) 862a3115621SDave Airlie seq_printf(m, "\t%9s: %s %s seq %llu\n", type, 863b6295f9aSRob Clark fence->ops->get_driver_name(fence), 864b6295f9aSRob Clark fence->ops->get_timeline_name(fence), 865b6295f9aSRob Clark fence->seqno); 866b6295f9aSRob Clark } 867b6295f9aSRob Clark 868c8afe684SRob Clark void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m) 869c8afe684SRob Clark { 870c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 87152791eeeSChristian König struct dma_resv *robj = obj->resv; 87252791eeeSChristian König struct dma_resv_list *fobj; 873f54d1867SChris Wilson struct dma_fence *fence; 8744b85f7f5SRob Clark struct msm_gem_vma *vma; 875c8afe684SRob Clark uint64_t off = drm_vma_node_start(&obj->vma_node); 8764cd33c48SRob Clark const char *madv; 877c8afe684SRob Clark 878a6ae74c9SRob Clark msm_gem_lock(obj); 879b6295f9aSRob Clark 8804cd33c48SRob Clark switch (msm_obj->madv) { 8814cd33c48SRob Clark case __MSM_MADV_PURGED: 8824cd33c48SRob Clark madv = " purged"; 8834cd33c48SRob Clark break; 8844cd33c48SRob Clark case MSM_MADV_DONTNEED: 8854cd33c48SRob Clark madv = " purgeable"; 8864cd33c48SRob Clark break; 8874cd33c48SRob Clark case MSM_MADV_WILLNEED: 8884cd33c48SRob Clark default: 8894cd33c48SRob Clark madv = ""; 8904cd33c48SRob Clark break; 8914cd33c48SRob Clark } 8924cd33c48SRob Clark 893575f0485SJordan Crouse seq_printf(m, "%08x: %c %2d (%2d) %08llx %p", 8947198e6b0SRob Clark msm_obj->flags, is_active(msm_obj) ? 'A' : 'I', 8952c935bc5SPeter Zijlstra obj->name, kref_read(&obj->refcount), 896667ce33eSRob Clark off, msm_obj->vaddr); 897667ce33eSRob Clark 8980815d774SJordan Crouse seq_printf(m, " %08zu %9s %-32s\n", obj->size, madv, msm_obj->name); 899667ce33eSRob Clark 900575f0485SJordan Crouse if (!list_empty(&msm_obj->vmas)) { 901575f0485SJordan Crouse 902575f0485SJordan Crouse seq_puts(m, " vmas:"); 903575f0485SJordan Crouse 90425faf2f2SRob Clark list_for_each_entry(vma, &msm_obj->vmas, list) { 90525faf2f2SRob Clark const char *name, *comm; 90625faf2f2SRob Clark if (vma->aspace) { 90725faf2f2SRob Clark struct msm_gem_address_space *aspace = vma->aspace; 90825faf2f2SRob Clark struct task_struct *task = 90925faf2f2SRob Clark get_pid_task(aspace->pid, PIDTYPE_PID); 91025faf2f2SRob Clark if (task) { 91125faf2f2SRob Clark comm = kstrdup(task->comm, GFP_KERNEL); 91225faf2f2SRob Clark } else { 91325faf2f2SRob Clark comm = NULL; 91425faf2f2SRob Clark } 91525faf2f2SRob Clark name = aspace->name; 91625faf2f2SRob Clark } else { 91725faf2f2SRob Clark name = comm = NULL; 91825faf2f2SRob Clark } 91925faf2f2SRob Clark seq_printf(m, " [%s%s%s: aspace=%p, %08llx,%s,inuse=%d]", 92025faf2f2SRob Clark name, comm ? ":" : "", comm ? comm : "", 92125faf2f2SRob Clark vma->aspace, vma->iova, 92225faf2f2SRob Clark vma->mapped ? "mapped" : "unmapped", 9237ad0e8cfSJordan Crouse vma->inuse); 92425faf2f2SRob Clark kfree(comm); 92525faf2f2SRob Clark } 926575f0485SJordan Crouse 927575f0485SJordan Crouse seq_puts(m, "\n"); 928575f0485SJordan Crouse } 929b6295f9aSRob Clark 930b6295f9aSRob Clark rcu_read_lock(); 931b6295f9aSRob Clark fobj = rcu_dereference(robj->fence); 932b6295f9aSRob Clark if (fobj) { 933b6295f9aSRob Clark unsigned int i, shared_count = fobj->shared_count; 934b6295f9aSRob Clark 935b6295f9aSRob Clark for (i = 0; i < shared_count; i++) { 936b6295f9aSRob Clark fence = rcu_dereference(fobj->shared[i]); 937b6295f9aSRob Clark describe_fence(fence, "Shared", m); 938b6295f9aSRob Clark } 939b6295f9aSRob Clark } 940b6295f9aSRob Clark 941b6295f9aSRob Clark fence = rcu_dereference(robj->fence_excl); 942b6295f9aSRob Clark if (fence) 943b6295f9aSRob Clark describe_fence(fence, "Exclusive", m); 944b6295f9aSRob Clark rcu_read_unlock(); 9450e08270aSSushmita Susheelendra 946a6ae74c9SRob Clark msm_gem_unlock(obj); 947c8afe684SRob Clark } 948c8afe684SRob Clark 949c8afe684SRob Clark void msm_gem_describe_objects(struct list_head *list, struct seq_file *m) 950c8afe684SRob Clark { 951c8afe684SRob Clark struct msm_gem_object *msm_obj; 952c8afe684SRob Clark int count = 0; 953c8afe684SRob Clark size_t size = 0; 954c8afe684SRob Clark 9550815d774SJordan Crouse seq_puts(m, " flags id ref offset kaddr size madv name\n"); 956c8afe684SRob Clark list_for_each_entry(msm_obj, list, mm_list) { 957c8afe684SRob Clark struct drm_gem_object *obj = &msm_obj->base; 958575f0485SJordan Crouse seq_puts(m, " "); 959c8afe684SRob Clark msm_gem_describe(obj, m); 960c8afe684SRob Clark count++; 961c8afe684SRob Clark size += obj->size; 962c8afe684SRob Clark } 963c8afe684SRob Clark 964c8afe684SRob Clark seq_printf(m, "Total %d objects, %zu bytes\n", count, size); 965c8afe684SRob Clark } 966c8afe684SRob Clark #endif 967c8afe684SRob Clark 968eecd7fd8SEmil Velikov /* don't call directly! Use drm_gem_object_put_locked() and friends */ 969c8afe684SRob Clark void msm_gem_free_object(struct drm_gem_object *obj) 970c8afe684SRob Clark { 971c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 97248e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 97348e7f183SKristian H. Kristensen struct msm_drm_private *priv = dev->dev_private; 97448e7f183SKristian H. Kristensen 975d984457bSRob Clark mutex_lock(&priv->mm_lock); 976c8afe684SRob Clark list_del(&msm_obj->mm_list); 977d984457bSRob Clark mutex_unlock(&priv->mm_lock); 978c8afe684SRob Clark 979a6ae74c9SRob Clark msm_gem_lock(obj); 9800e08270aSSushmita Susheelendra 981ab5c54cbSRob Clark /* object should not be on active list: */ 982ab5c54cbSRob Clark WARN_ON(is_active(msm_obj)); 983ab5c54cbSRob Clark 9849b73bde3SIskren Chernev put_iova_spaces(obj); 985c8afe684SRob Clark 98605b84911SRob Clark if (obj->import_attach) { 9878b6b7d84SDaniel Vetter 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 */ 99205b84911SRob Clark if (msm_obj->pages) 9932098105eSMichal Hocko kvfree(msm_obj->pages); 99405b84911SRob Clark 99557f04815SRob Clark put_iova_vmas(obj); 99657f04815SRob Clark 9976c0e3ea2SRob Clark /* dma_buf_detach() grabs resv lock, so we need to unlock 9986c0e3ea2SRob Clark * prior to drm_prime_gem_destroy 9996c0e3ea2SRob Clark */ 10006c0e3ea2SRob Clark msm_gem_unlock(obj); 10016c0e3ea2SRob Clark 1002f28730c8Sjilai wang drm_prime_gem_destroy(obj, msm_obj->sgt); 100305b84911SRob Clark } else { 1004599089c6SRob Clark msm_gem_vunmap(obj); 1005c8afe684SRob Clark put_pages(obj); 100657f04815SRob Clark put_iova_vmas(obj); 10076c0e3ea2SRob Clark msm_gem_unlock(obj); 100805b84911SRob Clark } 1009c8afe684SRob Clark 1010c8afe684SRob Clark drm_gem_object_release(obj); 1011c8afe684SRob Clark 1012c8afe684SRob Clark kfree(msm_obj); 1013c8afe684SRob Clark } 1014c8afe684SRob Clark 1015c8afe684SRob Clark /* convenience method to construct a GEM buffer object, and userspace handle */ 1016c8afe684SRob Clark int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file, 10170815d774SJordan Crouse uint32_t size, uint32_t flags, uint32_t *handle, 10180815d774SJordan Crouse char *name) 1019c8afe684SRob Clark { 1020c8afe684SRob Clark struct drm_gem_object *obj; 1021c8afe684SRob Clark int ret; 1022c8afe684SRob Clark 1023c8afe684SRob Clark obj = msm_gem_new(dev, size, flags); 1024c8afe684SRob Clark 1025c8afe684SRob Clark if (IS_ERR(obj)) 1026c8afe684SRob Clark return PTR_ERR(obj); 1027c8afe684SRob Clark 10280815d774SJordan Crouse if (name) 10290815d774SJordan Crouse msm_gem_object_set_name(obj, "%s", name); 10300815d774SJordan Crouse 1031c8afe684SRob Clark ret = drm_gem_handle_create(file, obj, handle); 1032c8afe684SRob Clark 1033c8afe684SRob Clark /* drop reference from allocate - handle holds it now */ 1034f7d33950SEmil Velikov drm_gem_object_put(obj); 1035c8afe684SRob Clark 1036c8afe684SRob Clark return ret; 1037c8afe684SRob Clark } 1038c8afe684SRob Clark 103905b84911SRob Clark static int msm_gem_new_impl(struct drm_device *dev, 104005b84911SRob Clark uint32_t size, uint32_t flags, 10413cbdc8d8SAkhil P Oommen struct drm_gem_object **obj) 1042c8afe684SRob Clark { 1043c8afe684SRob Clark struct msm_gem_object *msm_obj; 1044c8afe684SRob Clark 1045c8afe684SRob Clark switch (flags & MSM_BO_CACHE_MASK) { 1046c8afe684SRob Clark case MSM_BO_UNCACHED: 1047c8afe684SRob Clark case MSM_BO_CACHED: 1048c8afe684SRob Clark case MSM_BO_WC: 1049c8afe684SRob Clark break; 1050c8afe684SRob Clark default: 10516a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "invalid cache flag: %x\n", 1052c8afe684SRob Clark (flags & MSM_BO_CACHE_MASK)); 105305b84911SRob Clark return -EINVAL; 1054c8afe684SRob Clark } 1055c8afe684SRob Clark 1056667ce33eSRob Clark msm_obj = kzalloc(sizeof(*msm_obj), GFP_KERNEL); 105705b84911SRob Clark if (!msm_obj) 105805b84911SRob Clark return -ENOMEM; 1059c8afe684SRob Clark 1060c8afe684SRob Clark msm_obj->flags = flags; 10614cd33c48SRob Clark msm_obj->madv = MSM_MADV_WILLNEED; 1062c8afe684SRob Clark 10637198e6b0SRob Clark INIT_LIST_HEAD(&msm_obj->submit_entry); 10644b85f7f5SRob Clark INIT_LIST_HEAD(&msm_obj->vmas); 10654b85f7f5SRob Clark 106605b84911SRob Clark *obj = &msm_obj->base; 106705b84911SRob Clark 106805b84911SRob Clark return 0; 106905b84911SRob Clark } 107005b84911SRob Clark 10710e08270aSSushmita Susheelendra static struct drm_gem_object *_msm_gem_new(struct drm_device *dev, 10720e08270aSSushmita Susheelendra uint32_t size, uint32_t flags, bool struct_mutex_locked) 107305b84911SRob Clark { 1074f4839bd5SRob Clark struct msm_drm_private *priv = dev->dev_private; 10753cbdc8d8SAkhil P Oommen struct msm_gem_object *msm_obj; 1076871d812aSRob Clark struct drm_gem_object *obj = NULL; 1077f4839bd5SRob Clark bool use_vram = false; 107805b84911SRob Clark int ret; 107905b84911SRob Clark 108005b84911SRob Clark size = PAGE_ALIGN(size); 108105b84911SRob Clark 1082c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) 1083f4839bd5SRob Clark use_vram = true; 108486f46f25SJonathan Marek else if ((flags & (MSM_BO_STOLEN | MSM_BO_SCANOUT)) && priv->vram.size) 1085f4839bd5SRob Clark use_vram = true; 1086f4839bd5SRob Clark 1087f4839bd5SRob Clark if (WARN_ON(use_vram && !priv->vram.size)) 1088f4839bd5SRob Clark return ERR_PTR(-EINVAL); 1089f4839bd5SRob Clark 10901a5dff5dSJordan Crouse /* Disallow zero sized objects as they make the underlying 10911a5dff5dSJordan Crouse * infrastructure grumpy 10921a5dff5dSJordan Crouse */ 10931a5dff5dSJordan Crouse if (size == 0) 10941a5dff5dSJordan Crouse return ERR_PTR(-EINVAL); 10951a5dff5dSJordan Crouse 10963cbdc8d8SAkhil P Oommen ret = msm_gem_new_impl(dev, size, flags, &obj); 109705b84911SRob Clark if (ret) 109805b84911SRob Clark goto fail; 109905b84911SRob Clark 11003cbdc8d8SAkhil P Oommen msm_obj = to_msm_bo(obj); 11013cbdc8d8SAkhil P Oommen 1102f4839bd5SRob Clark if (use_vram) { 11034b85f7f5SRob Clark struct msm_gem_vma *vma; 1104f4839bd5SRob Clark struct page **pages; 1105b3949a9aSHans Verkuil 1106a694ffedSIskren Chernev drm_gem_private_object_init(dev, obj, size); 1107a694ffedSIskren Chernev 1108a6ae74c9SRob Clark msm_gem_lock(obj); 1109f4839bd5SRob Clark 11104b85f7f5SRob Clark vma = add_vma(obj, NULL); 1111a6ae74c9SRob Clark msm_gem_unlock(obj); 11124b85f7f5SRob Clark if (IS_ERR(vma)) { 11134b85f7f5SRob Clark ret = PTR_ERR(vma); 11144b85f7f5SRob Clark goto fail; 11154b85f7f5SRob Clark } 11164b85f7f5SRob Clark 11174b85f7f5SRob Clark to_msm_bo(obj)->vram_node = &vma->node; 11184b85f7f5SRob Clark 1119*07fcad0dSIskren Chernev msm_gem_lock(obj); 1120f4839bd5SRob Clark pages = get_pages(obj); 1121*07fcad0dSIskren Chernev msm_gem_unlock(obj); 1122f4839bd5SRob Clark if (IS_ERR(pages)) { 1123f4839bd5SRob Clark ret = PTR_ERR(pages); 1124f4839bd5SRob Clark goto fail; 1125f4839bd5SRob Clark } 11264b85f7f5SRob Clark 11274b85f7f5SRob Clark vma->iova = physaddr(obj); 1128f4839bd5SRob Clark } else { 112905b84911SRob Clark ret = drm_gem_object_init(dev, obj, size); 113005b84911SRob Clark if (ret) 113105b84911SRob Clark goto fail; 11320abdba47SLucas Stach /* 11330abdba47SLucas Stach * Our buffers are kept pinned, so allocating them from the 11340abdba47SLucas Stach * MOVABLE zone is a really bad idea, and conflicts with CMA. 11350abdba47SLucas Stach * See comments above new_inode() why this is required _and_ 11360abdba47SLucas Stach * expected if you're going to pin these pages. 11370abdba47SLucas Stach */ 11380abdba47SLucas Stach mapping_set_gfp_mask(obj->filp->f_mapping, GFP_HIGHUSER); 1139871d812aSRob Clark } 114005b84911SRob Clark 1141d984457bSRob Clark mutex_lock(&priv->mm_lock); 11423edfa30fSRob Clark /* Initially obj is idle, obj->madv == WILLNEED: */ 11433edfa30fSRob Clark list_add_tail(&msm_obj->mm_list, &priv->inactive_willneed); 1144d984457bSRob Clark mutex_unlock(&priv->mm_lock); 11453cbdc8d8SAkhil P Oommen 114605b84911SRob Clark return obj; 114705b84911SRob Clark 114805b84911SRob Clark fail: 1149ce0a9dc0SRob Clark if (struct_mutex_locked) { 1150ce0a9dc0SRob Clark drm_gem_object_put_locked(obj); 1151ce0a9dc0SRob Clark } else { 1152f7d33950SEmil Velikov drm_gem_object_put(obj); 1153ce0a9dc0SRob Clark } 115405b84911SRob Clark return ERR_PTR(ret); 115505b84911SRob Clark } 115605b84911SRob Clark 11570e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev, 11580e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 11590e08270aSSushmita Susheelendra { 11600e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, true); 11610e08270aSSushmita Susheelendra } 11620e08270aSSushmita Susheelendra 11630e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new(struct drm_device *dev, 11640e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 11650e08270aSSushmita Susheelendra { 11660e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, false); 11670e08270aSSushmita Susheelendra } 11680e08270aSSushmita Susheelendra 116905b84911SRob Clark struct drm_gem_object *msm_gem_import(struct drm_device *dev, 117079f0e202SRob Clark struct dma_buf *dmabuf, struct sg_table *sgt) 117105b84911SRob Clark { 11723cbdc8d8SAkhil P Oommen struct msm_drm_private *priv = dev->dev_private; 117305b84911SRob Clark struct msm_gem_object *msm_obj; 117405b84911SRob Clark struct drm_gem_object *obj; 117579f0e202SRob Clark uint32_t size; 117605b84911SRob Clark int ret, npages; 117705b84911SRob Clark 1178871d812aSRob Clark /* if we don't have IOMMU, don't bother pretending we can import: */ 1179c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) { 11806a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "cannot import without IOMMU\n"); 1181871d812aSRob Clark return ERR_PTR(-EINVAL); 1182871d812aSRob Clark } 1183871d812aSRob Clark 118479f0e202SRob Clark size = PAGE_ALIGN(dmabuf->size); 118505b84911SRob Clark 11863cbdc8d8SAkhil P Oommen ret = msm_gem_new_impl(dev, size, MSM_BO_WC, &obj); 118705b84911SRob Clark if (ret) 118805b84911SRob Clark goto fail; 118905b84911SRob Clark 119005b84911SRob Clark drm_gem_private_object_init(dev, obj, size); 119105b84911SRob Clark 119205b84911SRob Clark npages = size / PAGE_SIZE; 119305b84911SRob Clark 119405b84911SRob Clark msm_obj = to_msm_bo(obj); 1195a6ae74c9SRob Clark msm_gem_lock(obj); 119605b84911SRob Clark msm_obj->sgt = sgt; 11972098105eSMichal Hocko msm_obj->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 119805b84911SRob Clark if (!msm_obj->pages) { 1199a6ae74c9SRob Clark msm_gem_unlock(obj); 120005b84911SRob Clark ret = -ENOMEM; 120105b84911SRob Clark goto fail; 120205b84911SRob Clark } 120305b84911SRob Clark 120405b84911SRob Clark ret = drm_prime_sg_to_page_addr_arrays(sgt, msm_obj->pages, NULL, npages); 12050e08270aSSushmita Susheelendra if (ret) { 1206a6ae74c9SRob Clark msm_gem_unlock(obj); 120705b84911SRob Clark goto fail; 12080e08270aSSushmita Susheelendra } 120905b84911SRob Clark 1210a6ae74c9SRob Clark msm_gem_unlock(obj); 12113cbdc8d8SAkhil P Oommen 1212d984457bSRob Clark mutex_lock(&priv->mm_lock); 12133edfa30fSRob Clark list_add_tail(&msm_obj->mm_list, &priv->inactive_willneed); 1214d984457bSRob Clark mutex_unlock(&priv->mm_lock); 12153cbdc8d8SAkhil P Oommen 1216c8afe684SRob Clark return obj; 1217c8afe684SRob Clark 1218c8afe684SRob Clark fail: 1219f7d33950SEmil Velikov drm_gem_object_put(obj); 1220c8afe684SRob Clark return ERR_PTR(ret); 1221c8afe684SRob Clark } 12228223286dSJordan Crouse 12238223286dSJordan Crouse static void *_msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 12248223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 12258223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova, bool locked) 12268223286dSJordan Crouse { 12278223286dSJordan Crouse void *vaddr; 12288223286dSJordan Crouse struct drm_gem_object *obj = _msm_gem_new(dev, size, flags, locked); 12298223286dSJordan Crouse int ret; 12308223286dSJordan Crouse 12318223286dSJordan Crouse if (IS_ERR(obj)) 12328223286dSJordan Crouse return ERR_CAST(obj); 12338223286dSJordan Crouse 12348223286dSJordan Crouse if (iova) { 12359fe041f6SJordan Crouse ret = msm_gem_get_and_pin_iova(obj, aspace, iova); 123693f7abf1SJordan Crouse if (ret) 123793f7abf1SJordan Crouse goto err; 12388223286dSJordan Crouse } 12398223286dSJordan Crouse 12408223286dSJordan Crouse vaddr = msm_gem_get_vaddr(obj); 1241c9811d0fSWei Yongjun if (IS_ERR(vaddr)) { 12427ad0e8cfSJordan Crouse msm_gem_unpin_iova(obj, aspace); 124393f7abf1SJordan Crouse ret = PTR_ERR(vaddr); 124493f7abf1SJordan Crouse goto err; 12458223286dSJordan Crouse } 12468223286dSJordan Crouse 12478223286dSJordan Crouse if (bo) 12488223286dSJordan Crouse *bo = obj; 12498223286dSJordan Crouse 12508223286dSJordan Crouse return vaddr; 125193f7abf1SJordan Crouse err: 125293f7abf1SJordan Crouse if (locked) 1253eecd7fd8SEmil Velikov drm_gem_object_put_locked(obj); 125493f7abf1SJordan Crouse else 1255f7d33950SEmil Velikov drm_gem_object_put(obj); 125693f7abf1SJordan Crouse 125793f7abf1SJordan Crouse return ERR_PTR(ret); 125893f7abf1SJordan Crouse 12598223286dSJordan Crouse } 12608223286dSJordan Crouse 12618223286dSJordan Crouse void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 12628223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 12638223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 12648223286dSJordan Crouse { 12658223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, false); 12668223286dSJordan Crouse } 12678223286dSJordan Crouse 12688223286dSJordan Crouse void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size, 12698223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 12708223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 12718223286dSJordan Crouse { 12728223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, true); 12738223286dSJordan Crouse } 12741e29dff0SJordan Crouse 12751e29dff0SJordan Crouse void msm_gem_kernel_put(struct drm_gem_object *bo, 12761e29dff0SJordan Crouse struct msm_gem_address_space *aspace, bool locked) 12771e29dff0SJordan Crouse { 12781e29dff0SJordan Crouse if (IS_ERR_OR_NULL(bo)) 12791e29dff0SJordan Crouse return; 12801e29dff0SJordan Crouse 12811e29dff0SJordan Crouse msm_gem_put_vaddr(bo); 12827ad0e8cfSJordan Crouse msm_gem_unpin_iova(bo, aspace); 12831e29dff0SJordan Crouse 12841e29dff0SJordan Crouse if (locked) 1285eecd7fd8SEmil Velikov drm_gem_object_put_locked(bo); 12861e29dff0SJordan Crouse else 1287f7d33950SEmil Velikov drm_gem_object_put(bo); 12881e29dff0SJordan Crouse } 12890815d774SJordan Crouse 12900815d774SJordan Crouse void msm_gem_object_set_name(struct drm_gem_object *bo, const char *fmt, ...) 12910815d774SJordan Crouse { 12920815d774SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(bo); 12930815d774SJordan Crouse va_list ap; 12940815d774SJordan Crouse 12950815d774SJordan Crouse if (!fmt) 12960815d774SJordan Crouse return; 12970815d774SJordan Crouse 12980815d774SJordan Crouse va_start(ap, fmt); 12990815d774SJordan Crouse vsnprintf(msm_obj->name, sizeof(msm_obj->name), fmt, ap); 13000815d774SJordan Crouse va_end(ap); 13010815d774SJordan Crouse } 1302