1caab277bSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2c8afe684SRob Clark /* 3c8afe684SRob Clark * Copyright (C) 2013 Red Hat 4c8afe684SRob Clark * Author: Rob Clark <robdclark@gmail.com> 5c8afe684SRob Clark */ 6c8afe684SRob Clark 7c8afe684SRob Clark #include <linux/spinlock.h> 8c8afe684SRob Clark #include <linux/shmem_fs.h> 905b84911SRob Clark #include <linux/dma-buf.h> 1001c8f1c4SDan Williams #include <linux/pfn_t.h> 11c8afe684SRob Clark 12feea39a8SSam Ravnborg #include <drm/drm_prime.h> 13feea39a8SSam Ravnborg 14c8afe684SRob Clark #include "msm_drv.h" 15fde5de6cSRob Clark #include "msm_fence.h" 16c8afe684SRob Clark #include "msm_gem.h" 177198e6b0SRob Clark #include "msm_gpu.h" 18871d812aSRob Clark #include "msm_mmu.h" 19c8afe684SRob Clark 200e08270aSSushmita Susheelendra static void msm_gem_vunmap_locked(struct drm_gem_object *obj); 210e08270aSSushmita Susheelendra 220e08270aSSushmita Susheelendra 23871d812aSRob Clark static dma_addr_t physaddr(struct drm_gem_object *obj) 24871d812aSRob Clark { 25871d812aSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 26871d812aSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 27871d812aSRob Clark return (((dma_addr_t)msm_obj->vram_node->start) << PAGE_SHIFT) + 28871d812aSRob Clark priv->vram.paddr; 29871d812aSRob Clark } 30871d812aSRob Clark 31072f1f91SRob Clark static bool use_pages(struct drm_gem_object *obj) 32072f1f91SRob Clark { 33072f1f91SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 34072f1f91SRob Clark return !msm_obj->vram_node; 35072f1f91SRob Clark } 36072f1f91SRob Clark 373de433c5SRob Clark /* 383de433c5SRob Clark * Cache sync.. this is a bit over-complicated, to fit dma-mapping 393de433c5SRob Clark * API. Really GPU cache is out of scope here (handled on cmdstream) 403de433c5SRob Clark * and all we need to do is invalidate newly allocated pages before 413de433c5SRob Clark * mapping to CPU as uncached/writecombine. 423de433c5SRob Clark * 433de433c5SRob Clark * On top of this, we have the added headache, that depending on 443de433c5SRob Clark * display generation, the display's iommu may be wired up to either 453de433c5SRob Clark * the toplevel drm device (mdss), or to the mdp sub-node, meaning 463de433c5SRob Clark * that here we either have dma-direct or iommu ops. 473de433c5SRob Clark * 483de433c5SRob Clark * Let this be a cautionary tail of abstraction gone wrong. 493de433c5SRob Clark */ 503de433c5SRob Clark 513de433c5SRob Clark static void sync_for_device(struct msm_gem_object *msm_obj) 523de433c5SRob Clark { 533de433c5SRob Clark struct device *dev = msm_obj->base.dev->dev; 543de433c5SRob Clark 559f614197SRob Clark if (get_dma_ops(dev) && IS_ENABLED(CONFIG_ARM64)) { 563de433c5SRob Clark dma_sync_sg_for_device(dev, msm_obj->sgt->sgl, 573de433c5SRob Clark msm_obj->sgt->nents, DMA_BIDIRECTIONAL); 583de433c5SRob Clark } else { 593de433c5SRob Clark dma_map_sg(dev, msm_obj->sgt->sgl, 603de433c5SRob Clark msm_obj->sgt->nents, DMA_BIDIRECTIONAL); 613de433c5SRob Clark } 623de433c5SRob Clark } 633de433c5SRob Clark 643de433c5SRob Clark static void sync_for_cpu(struct msm_gem_object *msm_obj) 653de433c5SRob Clark { 663de433c5SRob Clark struct device *dev = msm_obj->base.dev->dev; 673de433c5SRob Clark 689f614197SRob Clark if (get_dma_ops(dev) && IS_ENABLED(CONFIG_ARM64)) { 693de433c5SRob Clark dma_sync_sg_for_cpu(dev, msm_obj->sgt->sgl, 703de433c5SRob Clark msm_obj->sgt->nents, DMA_BIDIRECTIONAL); 713de433c5SRob Clark } else { 723de433c5SRob Clark dma_unmap_sg(dev, msm_obj->sgt->sgl, 733de433c5SRob Clark msm_obj->sgt->nents, DMA_BIDIRECTIONAL); 743de433c5SRob Clark } 753de433c5SRob Clark } 763de433c5SRob Clark 77871d812aSRob Clark /* allocate pages from VRAM carveout, used when no IOMMU: */ 780e08270aSSushmita Susheelendra static struct page **get_pages_vram(struct drm_gem_object *obj, int npages) 79871d812aSRob Clark { 80871d812aSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 81871d812aSRob Clark struct msm_drm_private *priv = obj->dev->dev_private; 82871d812aSRob Clark dma_addr_t paddr; 83871d812aSRob Clark struct page **p; 84871d812aSRob Clark int ret, i; 85871d812aSRob Clark 862098105eSMichal Hocko p = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 87871d812aSRob Clark if (!p) 88871d812aSRob Clark return ERR_PTR(-ENOMEM); 89871d812aSRob Clark 900e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 914e64e553SChris Wilson ret = drm_mm_insert_node(&priv->vram.mm, msm_obj->vram_node, npages); 920e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 93871d812aSRob Clark if (ret) { 942098105eSMichal Hocko kvfree(p); 95871d812aSRob Clark return ERR_PTR(ret); 96871d812aSRob Clark } 97871d812aSRob Clark 98871d812aSRob Clark paddr = physaddr(obj); 99871d812aSRob Clark for (i = 0; i < npages; i++) { 100871d812aSRob Clark p[i] = phys_to_page(paddr); 101871d812aSRob Clark paddr += PAGE_SIZE; 102871d812aSRob Clark } 103871d812aSRob Clark 104871d812aSRob Clark return p; 105871d812aSRob Clark } 106c8afe684SRob Clark 107c8afe684SRob Clark static struct page **get_pages(struct drm_gem_object *obj) 108c8afe684SRob Clark { 109c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 110c8afe684SRob Clark 111c8afe684SRob Clark if (!msm_obj->pages) { 112c8afe684SRob Clark struct drm_device *dev = obj->dev; 113871d812aSRob Clark struct page **p; 114c8afe684SRob Clark int npages = obj->size >> PAGE_SHIFT; 115c8afe684SRob Clark 116072f1f91SRob Clark if (use_pages(obj)) 1170cdbe8acSDavid Herrmann p = drm_gem_get_pages(obj); 118871d812aSRob Clark else 119871d812aSRob Clark p = get_pages_vram(obj, npages); 120871d812aSRob Clark 121c8afe684SRob Clark if (IS_ERR(p)) { 1226a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not get pages: %ld\n", 123c8afe684SRob Clark PTR_ERR(p)); 124c8afe684SRob Clark return p; 125c8afe684SRob Clark } 126c8afe684SRob Clark 12762e3a3e3SPrakash Kamliya msm_obj->pages = p; 12862e3a3e3SPrakash Kamliya 129707d561fSGerd Hoffmann msm_obj->sgt = drm_prime_pages_to_sg(obj->dev, p, npages); 1301f70e079SWei Yongjun if (IS_ERR(msm_obj->sgt)) { 13162e3a3e3SPrakash Kamliya void *ptr = ERR_CAST(msm_obj->sgt); 132c8afe684SRob Clark 1336a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "failed to allocate sgt\n"); 13462e3a3e3SPrakash Kamliya msm_obj->sgt = NULL; 13562e3a3e3SPrakash Kamliya return ptr; 13662e3a3e3SPrakash Kamliya } 137c8afe684SRob Clark 138c8afe684SRob Clark /* For non-cached buffers, ensure the new pages are clean 139c8afe684SRob Clark * because display controller, GPU, etc. are not coherent: 140c8afe684SRob Clark */ 141c8afe684SRob Clark if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) 1423de433c5SRob Clark sync_for_device(msm_obj); 143c8afe684SRob Clark } 144c8afe684SRob Clark 145c8afe684SRob Clark return msm_obj->pages; 146c8afe684SRob Clark } 147c8afe684SRob Clark 1480e08270aSSushmita Susheelendra static void put_pages_vram(struct drm_gem_object *obj) 1490e08270aSSushmita Susheelendra { 1500e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 1510e08270aSSushmita Susheelendra struct msm_drm_private *priv = obj->dev->dev_private; 1520e08270aSSushmita Susheelendra 1530e08270aSSushmita Susheelendra spin_lock(&priv->vram.lock); 1540e08270aSSushmita Susheelendra drm_mm_remove_node(msm_obj->vram_node); 1550e08270aSSushmita Susheelendra spin_unlock(&priv->vram.lock); 1560e08270aSSushmita Susheelendra 1570e08270aSSushmita Susheelendra kvfree(msm_obj->pages); 1580e08270aSSushmita Susheelendra } 1590e08270aSSushmita Susheelendra 160c8afe684SRob Clark static void put_pages(struct drm_gem_object *obj) 161c8afe684SRob Clark { 162c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 163c8afe684SRob Clark 164c8afe684SRob Clark if (msm_obj->pages) { 1653976626eSBen Hutchings if (msm_obj->sgt) { 1663976626eSBen Hutchings /* For non-cached buffers, ensure the new 1673976626eSBen Hutchings * pages are clean because display controller, 1683976626eSBen Hutchings * GPU, etc. are not coherent: 169c8afe684SRob Clark */ 170c8afe684SRob Clark if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) 1713de433c5SRob Clark sync_for_cpu(msm_obj); 17262e3a3e3SPrakash Kamliya 173c8afe684SRob Clark sg_free_table(msm_obj->sgt); 174c8afe684SRob Clark kfree(msm_obj->sgt); 1753976626eSBen Hutchings } 176c8afe684SRob Clark 177072f1f91SRob Clark if (use_pages(obj)) 178c8afe684SRob Clark drm_gem_put_pages(obj, msm_obj->pages, true, false); 1790e08270aSSushmita Susheelendra else 1800e08270aSSushmita Susheelendra put_pages_vram(obj); 181871d812aSRob Clark 182c8afe684SRob Clark msm_obj->pages = NULL; 183c8afe684SRob Clark } 184c8afe684SRob Clark } 185c8afe684SRob Clark 18605b84911SRob Clark struct page **msm_gem_get_pages(struct drm_gem_object *obj) 18705b84911SRob Clark { 1880e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 18905b84911SRob Clark struct page **p; 1900e08270aSSushmita Susheelendra 1910e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 1920e08270aSSushmita Susheelendra 1930e08270aSSushmita Susheelendra if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 1940e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 1950e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 1960e08270aSSushmita Susheelendra } 1970e08270aSSushmita Susheelendra 19805b84911SRob Clark p = get_pages(obj); 1990e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 20005b84911SRob Clark return p; 20105b84911SRob Clark } 20205b84911SRob Clark 20305b84911SRob Clark void msm_gem_put_pages(struct drm_gem_object *obj) 20405b84911SRob Clark { 20505b84911SRob Clark /* when we start tracking the pin count, then do something here */ 20605b84911SRob Clark } 20705b84911SRob Clark 208c8afe684SRob Clark int msm_gem_mmap_obj(struct drm_gem_object *obj, 209c8afe684SRob Clark struct vm_area_struct *vma) 210c8afe684SRob Clark { 211c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 212c8afe684SRob Clark 213c8afe684SRob Clark vma->vm_flags &= ~VM_PFNMAP; 214c8afe684SRob Clark vma->vm_flags |= VM_MIXEDMAP; 215c8afe684SRob Clark 216c8afe684SRob Clark if (msm_obj->flags & MSM_BO_WC) { 217c8afe684SRob Clark vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); 218c8afe684SRob Clark } else if (msm_obj->flags & MSM_BO_UNCACHED) { 219c8afe684SRob Clark vma->vm_page_prot = pgprot_noncached(vm_get_page_prot(vma->vm_flags)); 220c8afe684SRob Clark } else { 221c8afe684SRob Clark /* 222c8afe684SRob Clark * Shunt off cached objs to shmem file so they have their own 223c8afe684SRob Clark * address_space (so unmap_mapping_range does what we want, 224c8afe684SRob Clark * in particular in the case of mmap'd dmabufs) 225c8afe684SRob Clark */ 226c8afe684SRob Clark fput(vma->vm_file); 227c8afe684SRob Clark get_file(obj->filp); 228c8afe684SRob Clark vma->vm_pgoff = 0; 229c8afe684SRob Clark vma->vm_file = obj->filp; 230c8afe684SRob Clark 231c8afe684SRob Clark vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); 232c8afe684SRob Clark } 233c8afe684SRob Clark 234c8afe684SRob Clark return 0; 235c8afe684SRob Clark } 236c8afe684SRob Clark 237c8afe684SRob Clark int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma) 238c8afe684SRob Clark { 239c8afe684SRob Clark int ret; 240c8afe684SRob Clark 241c8afe684SRob Clark ret = drm_gem_mmap(filp, vma); 242c8afe684SRob Clark if (ret) { 243c8afe684SRob Clark DBG("mmap failed: %d", ret); 244c8afe684SRob Clark return ret; 245c8afe684SRob Clark } 246c8afe684SRob Clark 247c8afe684SRob Clark return msm_gem_mmap_obj(vma->vm_private_data, vma); 248c8afe684SRob Clark } 249c8afe684SRob Clark 250*3c9edd9cSThomas Zimmermann static vm_fault_t msm_gem_fault(struct vm_fault *vmf) 251c8afe684SRob Clark { 25211bac800SDave Jiang struct vm_area_struct *vma = vmf->vma; 253c8afe684SRob Clark struct drm_gem_object *obj = vma->vm_private_data; 2540e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 255c8afe684SRob Clark struct page **pages; 256c8afe684SRob Clark unsigned long pfn; 257c8afe684SRob Clark pgoff_t pgoff; 258a5f74ec7SSouptick Joarder int err; 259a5f74ec7SSouptick Joarder vm_fault_t ret; 260c8afe684SRob Clark 2610e08270aSSushmita Susheelendra /* 2620e08270aSSushmita Susheelendra * vm_ops.open/drm_gem_mmap_obj and close get and put 2630e08270aSSushmita Susheelendra * a reference on obj. So, we dont need to hold one here. 264d78d383aSRob Clark */ 265a5f74ec7SSouptick Joarder err = mutex_lock_interruptible(&msm_obj->lock); 266a5f74ec7SSouptick Joarder if (err) { 267a5f74ec7SSouptick Joarder ret = VM_FAULT_NOPAGE; 268c8afe684SRob Clark goto out; 269a5f74ec7SSouptick Joarder } 270c8afe684SRob Clark 2710e08270aSSushmita Susheelendra if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { 2720e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 2730e08270aSSushmita Susheelendra return VM_FAULT_SIGBUS; 2740e08270aSSushmita Susheelendra } 2750e08270aSSushmita Susheelendra 276c8afe684SRob Clark /* make sure we have pages attached now */ 277c8afe684SRob Clark pages = get_pages(obj); 278c8afe684SRob Clark if (IS_ERR(pages)) { 279a5f74ec7SSouptick Joarder ret = vmf_error(PTR_ERR(pages)); 280c8afe684SRob Clark goto out_unlock; 281c8afe684SRob Clark } 282c8afe684SRob Clark 283c8afe684SRob Clark /* We don't use vmf->pgoff since that has the fake offset: */ 2841a29d85eSJan Kara pgoff = (vmf->address - vma->vm_start) >> PAGE_SHIFT; 285c8afe684SRob Clark 286871d812aSRob Clark pfn = page_to_pfn(pages[pgoff]); 287c8afe684SRob Clark 2881a29d85eSJan Kara VERB("Inserting %p pfn %lx, pa %lx", (void *)vmf->address, 289c8afe684SRob Clark pfn, pfn << PAGE_SHIFT); 290c8afe684SRob Clark 291a5f74ec7SSouptick Joarder ret = vmf_insert_mixed(vma, vmf->address, __pfn_to_pfn_t(pfn, PFN_DEV)); 292c8afe684SRob Clark out_unlock: 2930e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 294c8afe684SRob Clark out: 295a5f74ec7SSouptick Joarder return ret; 296c8afe684SRob Clark } 297c8afe684SRob Clark 298c8afe684SRob Clark /** get mmap offset */ 299c8afe684SRob Clark static uint64_t mmap_offset(struct drm_gem_object *obj) 300c8afe684SRob Clark { 301c8afe684SRob Clark struct drm_device *dev = obj->dev; 3020e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 303c8afe684SRob Clark int ret; 304c8afe684SRob Clark 3050e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 306c8afe684SRob Clark 307c8afe684SRob Clark /* Make it mmapable */ 308c8afe684SRob Clark ret = drm_gem_create_mmap_offset(obj); 309c8afe684SRob Clark 310c8afe684SRob Clark if (ret) { 3116a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "could not allocate mmap offset\n"); 312c8afe684SRob Clark return 0; 313c8afe684SRob Clark } 314c8afe684SRob Clark 315c8afe684SRob Clark return drm_vma_node_offset_addr(&obj->vma_node); 316c8afe684SRob Clark } 317c8afe684SRob Clark 318c8afe684SRob Clark uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj) 319c8afe684SRob Clark { 320c8afe684SRob Clark uint64_t offset; 3210e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 3220e08270aSSushmita Susheelendra 3230e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 324c8afe684SRob Clark offset = mmap_offset(obj); 3250e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 326c8afe684SRob Clark return offset; 327c8afe684SRob Clark } 328c8afe684SRob Clark 3294b85f7f5SRob Clark static struct msm_gem_vma *add_vma(struct drm_gem_object *obj, 3304b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3314b85f7f5SRob Clark { 3324b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3334b85f7f5SRob Clark struct msm_gem_vma *vma; 3344b85f7f5SRob Clark 3350e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 3360e08270aSSushmita Susheelendra 3374b85f7f5SRob Clark vma = kzalloc(sizeof(*vma), GFP_KERNEL); 3384b85f7f5SRob Clark if (!vma) 3394b85f7f5SRob Clark return ERR_PTR(-ENOMEM); 3404b85f7f5SRob Clark 3414b85f7f5SRob Clark vma->aspace = aspace; 3424b85f7f5SRob Clark 3434b85f7f5SRob Clark list_add_tail(&vma->list, &msm_obj->vmas); 3444b85f7f5SRob Clark 3454b85f7f5SRob Clark return vma; 3464b85f7f5SRob Clark } 3474b85f7f5SRob Clark 3484b85f7f5SRob Clark static struct msm_gem_vma *lookup_vma(struct drm_gem_object *obj, 3494b85f7f5SRob Clark struct msm_gem_address_space *aspace) 3504b85f7f5SRob Clark { 3514b85f7f5SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3524b85f7f5SRob Clark struct msm_gem_vma *vma; 3534b85f7f5SRob Clark 3540e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 3554b85f7f5SRob Clark 3564b85f7f5SRob Clark list_for_each_entry(vma, &msm_obj->vmas, list) { 3574b85f7f5SRob Clark if (vma->aspace == aspace) 3584b85f7f5SRob Clark return vma; 3594b85f7f5SRob Clark } 3604b85f7f5SRob Clark 3614b85f7f5SRob Clark return NULL; 3624b85f7f5SRob Clark } 3634b85f7f5SRob Clark 3644b85f7f5SRob Clark static void del_vma(struct msm_gem_vma *vma) 3654b85f7f5SRob Clark { 3664b85f7f5SRob Clark if (!vma) 3674b85f7f5SRob Clark return; 3684b85f7f5SRob Clark 3694b85f7f5SRob Clark list_del(&vma->list); 3704b85f7f5SRob Clark kfree(vma); 3714b85f7f5SRob Clark } 3724b85f7f5SRob Clark 3730e08270aSSushmita Susheelendra /* Called with msm_obj->lock locked */ 3744fe5f65eSRob Clark static void 3754fe5f65eSRob Clark put_iova(struct drm_gem_object *obj) 3764fe5f65eSRob Clark { 3774fe5f65eSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3784b85f7f5SRob Clark struct msm_gem_vma *vma, *tmp; 3794fe5f65eSRob Clark 3800e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 3814fe5f65eSRob Clark 3824b85f7f5SRob Clark list_for_each_entry_safe(vma, tmp, &msm_obj->vmas, list) { 383d67f1b6dSBrian Masney if (vma->aspace) { 3847ad0e8cfSJordan Crouse msm_gem_purge_vma(vma->aspace, vma); 3857ad0e8cfSJordan Crouse msm_gem_close_vma(vma->aspace, vma); 386d67f1b6dSBrian Masney } 3874b85f7f5SRob Clark del_vma(vma); 3884fe5f65eSRob Clark } 3894fe5f65eSRob Clark } 3904fe5f65eSRob Clark 391c0ee9794SJordan Crouse static int msm_gem_get_iova_locked(struct drm_gem_object *obj, 392d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova, 393d3b8877eSJonathan Marek u64 range_start, u64 range_end) 394c8afe684SRob Clark { 395c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3964b85f7f5SRob Clark struct msm_gem_vma *vma; 397c8afe684SRob Clark int ret = 0; 398c8afe684SRob Clark 399c0ee9794SJordan Crouse WARN_ON(!mutex_is_locked(&msm_obj->lock)); 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 434c0ee9794SJordan Crouse WARN_ON(!mutex_is_locked(&msm_obj->lock)); 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 451d3b8877eSJonathan Marek /* 452d3b8877eSJonathan Marek * get iova and pin it. Should have a matching put 453d3b8877eSJonathan Marek * limits iova to specified range (in pages) 454d3b8877eSJonathan Marek */ 455d3b8877eSJonathan Marek int msm_gem_get_and_pin_iova_range(struct drm_gem_object *obj, 456d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova, 457d3b8877eSJonathan Marek u64 range_start, u64 range_end) 458c0ee9794SJordan Crouse { 459c0ee9794SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 460c0ee9794SJordan Crouse u64 local; 461c0ee9794SJordan Crouse int ret; 462c0ee9794SJordan Crouse 463c0ee9794SJordan Crouse mutex_lock(&msm_obj->lock); 464c0ee9794SJordan Crouse 465d3b8877eSJonathan Marek ret = msm_gem_get_iova_locked(obj, aspace, &local, 466d3b8877eSJonathan Marek range_start, range_end); 467c0ee9794SJordan Crouse 468c0ee9794SJordan Crouse if (!ret) 469c0ee9794SJordan Crouse ret = msm_gem_pin_iova(obj, aspace); 470c0ee9794SJordan Crouse 471c0ee9794SJordan Crouse if (!ret) 472c0ee9794SJordan Crouse *iova = local; 473c0ee9794SJordan Crouse 4740e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 475c8afe684SRob Clark return ret; 476c8afe684SRob Clark } 477c8afe684SRob Clark 478d3b8877eSJonathan Marek /* get iova and pin it. Should have a matching put */ 479d3b8877eSJonathan Marek int msm_gem_get_and_pin_iova(struct drm_gem_object *obj, 480d3b8877eSJonathan Marek struct msm_gem_address_space *aspace, uint64_t *iova) 481d3b8877eSJonathan Marek { 482d3b8877eSJonathan Marek return msm_gem_get_and_pin_iova_range(obj, aspace, iova, 0, U64_MAX); 483d3b8877eSJonathan Marek } 484d3b8877eSJonathan Marek 4857ad0e8cfSJordan Crouse /* 4867ad0e8cfSJordan Crouse * Get an iova but don't pin it. Doesn't need a put because iovas are currently 4877ad0e8cfSJordan Crouse * valid for the life of the object 4887ad0e8cfSJordan Crouse */ 4899fe041f6SJordan Crouse int msm_gem_get_iova(struct drm_gem_object *obj, 4909fe041f6SJordan Crouse struct msm_gem_address_space *aspace, uint64_t *iova) 4919fe041f6SJordan Crouse { 4929fe041f6SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 4939fe041f6SJordan Crouse int ret; 4949fe041f6SJordan Crouse 4959fe041f6SJordan Crouse mutex_lock(&msm_obj->lock); 496d3b8877eSJonathan Marek ret = msm_gem_get_iova_locked(obj, aspace, iova, 0, U64_MAX); 4979fe041f6SJordan Crouse mutex_unlock(&msm_obj->lock); 4989fe041f6SJordan Crouse 4999fe041f6SJordan Crouse return ret; 5009fe041f6SJordan Crouse } 5019fe041f6SJordan Crouse 5022638d90aSRob Clark /* get iova without taking a reference, used in places where you have 5039fe041f6SJordan Crouse * already done a 'msm_gem_get_and_pin_iova' or 'msm_gem_get_iova' 5042638d90aSRob Clark */ 5058bdcd949SRob Clark uint64_t msm_gem_iova(struct drm_gem_object *obj, 5068bdcd949SRob Clark struct msm_gem_address_space *aspace) 5072638d90aSRob Clark { 5080e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 5094b85f7f5SRob Clark struct msm_gem_vma *vma; 5104b85f7f5SRob Clark 5110e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 5124b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 5130e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5144b85f7f5SRob Clark WARN_ON(!vma); 5154b85f7f5SRob Clark 5164b85f7f5SRob Clark return vma ? vma->iova : 0; 5172638d90aSRob Clark } 5182638d90aSRob Clark 5197ad0e8cfSJordan Crouse /* 5207ad0e8cfSJordan Crouse * Unpin a iova by updating the reference counts. The memory isn't actually 5217ad0e8cfSJordan Crouse * purged until something else (shrinker, mm_notifier, destroy, etc) decides 5227ad0e8cfSJordan Crouse * to get rid of it 5237ad0e8cfSJordan Crouse */ 5247ad0e8cfSJordan Crouse void msm_gem_unpin_iova(struct drm_gem_object *obj, 5258bdcd949SRob Clark struct msm_gem_address_space *aspace) 526c8afe684SRob Clark { 5277ad0e8cfSJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 5287ad0e8cfSJordan Crouse struct msm_gem_vma *vma; 5297ad0e8cfSJordan Crouse 5307ad0e8cfSJordan Crouse mutex_lock(&msm_obj->lock); 5317ad0e8cfSJordan Crouse vma = lookup_vma(obj, aspace); 5327ad0e8cfSJordan Crouse 5337ad0e8cfSJordan Crouse if (!WARN_ON(!vma)) 5347ad0e8cfSJordan Crouse msm_gem_unmap_vma(aspace, vma); 5357ad0e8cfSJordan Crouse 5367ad0e8cfSJordan Crouse mutex_unlock(&msm_obj->lock); 537c8afe684SRob Clark } 538c8afe684SRob Clark 539c8afe684SRob Clark int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 540c8afe684SRob Clark struct drm_mode_create_dumb *args) 541c8afe684SRob Clark { 542c8afe684SRob Clark args->pitch = align_pitch(args->width, args->bpp); 543c8afe684SRob Clark args->size = PAGE_ALIGN(args->pitch * args->height); 544c8afe684SRob Clark return msm_gem_new_handle(dev, file, args->size, 5450815d774SJordan Crouse MSM_BO_SCANOUT | MSM_BO_WC, &args->handle, "dumb"); 546c8afe684SRob Clark } 547c8afe684SRob Clark 548c8afe684SRob Clark int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 549c8afe684SRob Clark uint32_t handle, uint64_t *offset) 550c8afe684SRob Clark { 551c8afe684SRob Clark struct drm_gem_object *obj; 552c8afe684SRob Clark int ret = 0; 553c8afe684SRob Clark 554c8afe684SRob Clark /* GEM does all our handle to object mapping */ 555a8ad0bd8SChris Wilson obj = drm_gem_object_lookup(file, handle); 556c8afe684SRob Clark if (obj == NULL) { 557c8afe684SRob Clark ret = -ENOENT; 558c8afe684SRob Clark goto fail; 559c8afe684SRob Clark } 560c8afe684SRob Clark 561c8afe684SRob Clark *offset = msm_gem_mmap_offset(obj); 562c8afe684SRob Clark 563f7d33950SEmil Velikov drm_gem_object_put(obj); 564c8afe684SRob Clark 565c8afe684SRob Clark fail: 566c8afe684SRob Clark return ret; 567c8afe684SRob Clark } 568c8afe684SRob Clark 569fad33f4bSRob Clark static void *get_vaddr(struct drm_gem_object *obj, unsigned madv) 570c8afe684SRob Clark { 5710e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 5720e08270aSSushmita Susheelendra int ret = 0; 5730e08270aSSushmita Susheelendra 5748b6b7d84SDaniel Vetter if (obj->import_attach) 5758b6b7d84SDaniel Vetter return ERR_PTR(-ENODEV); 5768b6b7d84SDaniel Vetter 5770e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 5780e08270aSSushmita Susheelendra 579fad33f4bSRob Clark if (WARN_ON(msm_obj->madv > madv)) { 5806a41da17SMamta Shukla DRM_DEV_ERROR(obj->dev->dev, "Invalid madv state: %u vs %u\n", 581fad33f4bSRob Clark msm_obj->madv, madv); 5820e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5830e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 584c8afe684SRob Clark } 585c8afe684SRob Clark 5860e08270aSSushmita Susheelendra /* increment vmap_count *before* vmap() call, so shrinker can 5870e08270aSSushmita Susheelendra * check vmap_count (is_vunmapable()) outside of msm_obj->lock. 5880e08270aSSushmita Susheelendra * This guarantees that we won't try to msm_gem_vunmap() this 5890e08270aSSushmita Susheelendra * same object from within the vmap() call (while we already 5900e08270aSSushmita Susheelendra * hold msm_obj->lock) 5910e08270aSSushmita Susheelendra */ 5920e08270aSSushmita Susheelendra msm_obj->vmap_count++; 5930e08270aSSushmita Susheelendra 5940e08270aSSushmita Susheelendra if (!msm_obj->vaddr) { 5950e08270aSSushmita Susheelendra struct page **pages = get_pages(obj); 5960e08270aSSushmita Susheelendra if (IS_ERR(pages)) { 5970e08270aSSushmita Susheelendra ret = PTR_ERR(pages); 5980e08270aSSushmita Susheelendra goto fail; 5990e08270aSSushmita Susheelendra } 6000e08270aSSushmita Susheelendra msm_obj->vaddr = vmap(pages, obj->size >> PAGE_SHIFT, 6010e08270aSSushmita Susheelendra VM_MAP, pgprot_writecombine(PAGE_KERNEL)); 6020e08270aSSushmita Susheelendra if (msm_obj->vaddr == NULL) { 6030e08270aSSushmita Susheelendra ret = -ENOMEM; 6040e08270aSSushmita Susheelendra goto fail; 6050e08270aSSushmita Susheelendra } 6060e08270aSSushmita Susheelendra } 6070e08270aSSushmita Susheelendra 6080e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 6090e08270aSSushmita Susheelendra return msm_obj->vaddr; 6100e08270aSSushmita Susheelendra 6110e08270aSSushmita Susheelendra fail: 612e1e9db2cSRob Clark msm_obj->vmap_count--; 6130e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 6140e08270aSSushmita Susheelendra return ERR_PTR(ret); 61518f23049SRob Clark } 61618f23049SRob Clark 617fad33f4bSRob Clark void *msm_gem_get_vaddr(struct drm_gem_object *obj) 618fad33f4bSRob Clark { 619fad33f4bSRob Clark return get_vaddr(obj, MSM_MADV_WILLNEED); 620fad33f4bSRob Clark } 621fad33f4bSRob Clark 622fad33f4bSRob Clark /* 623fad33f4bSRob Clark * Don't use this! It is for the very special case of dumping 624fad33f4bSRob Clark * submits from GPU hangs or faults, were the bo may already 625fad33f4bSRob Clark * be MSM_MADV_DONTNEED, but we know the buffer is still on the 626fad33f4bSRob Clark * active list. 627fad33f4bSRob Clark */ 628fad33f4bSRob Clark void *msm_gem_get_vaddr_active(struct drm_gem_object *obj) 629fad33f4bSRob Clark { 630fad33f4bSRob Clark return get_vaddr(obj, __MSM_MADV_PURGED); 631fad33f4bSRob Clark } 632fad33f4bSRob Clark 63318f23049SRob Clark void msm_gem_put_vaddr(struct drm_gem_object *obj) 63418f23049SRob Clark { 6350e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 6360e08270aSSushmita Susheelendra 6370e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 6380e08270aSSushmita Susheelendra WARN_ON(msm_obj->vmap_count < 1); 6390e08270aSSushmita Susheelendra msm_obj->vmap_count--; 6400e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 64118f23049SRob Clark } 64218f23049SRob Clark 6434cd33c48SRob Clark /* Update madvise status, returns true if not purged, else 6444cd33c48SRob Clark * false or -errno. 6454cd33c48SRob Clark */ 6464cd33c48SRob Clark int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv) 6474cd33c48SRob Clark { 6484cd33c48SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 6494cd33c48SRob Clark 6500e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 6510e08270aSSushmita Susheelendra 6524cd33c48SRob Clark WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex)); 6534cd33c48SRob Clark 6544cd33c48SRob Clark if (msm_obj->madv != __MSM_MADV_PURGED) 6554cd33c48SRob Clark msm_obj->madv = madv; 6564cd33c48SRob Clark 6570e08270aSSushmita Susheelendra madv = msm_obj->madv; 6580e08270aSSushmita Susheelendra 6590e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 6600e08270aSSushmita Susheelendra 6610e08270aSSushmita Susheelendra return (madv != __MSM_MADV_PURGED); 6624cd33c48SRob Clark } 6634cd33c48SRob Clark 6640e08270aSSushmita Susheelendra void msm_gem_purge(struct drm_gem_object *obj, enum msm_gem_lock subclass) 66568209390SRob Clark { 66668209390SRob Clark struct drm_device *dev = obj->dev; 66768209390SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 66868209390SRob Clark 66968209390SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 67068209390SRob Clark WARN_ON(!is_purgeable(msm_obj)); 67168209390SRob Clark WARN_ON(obj->import_attach); 67268209390SRob Clark 6730e08270aSSushmita Susheelendra mutex_lock_nested(&msm_obj->lock, subclass); 6740e08270aSSushmita Susheelendra 67568209390SRob Clark put_iova(obj); 67668209390SRob Clark 6770e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 67868209390SRob Clark 67968209390SRob Clark put_pages(obj); 68068209390SRob Clark 68168209390SRob Clark msm_obj->madv = __MSM_MADV_PURGED; 68268209390SRob Clark 68368209390SRob Clark drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); 68468209390SRob Clark drm_gem_free_mmap_offset(obj); 68568209390SRob Clark 68668209390SRob Clark /* Our goal here is to return as much of the memory as 68768209390SRob Clark * is possible back to the system as we are called from OOM. 68868209390SRob Clark * To do this we must instruct the shmfs to drop all of its 68968209390SRob Clark * backing pages, *now*. 69068209390SRob Clark */ 69168209390SRob Clark shmem_truncate_range(file_inode(obj->filp), 0, (loff_t)-1); 69268209390SRob Clark 69368209390SRob Clark invalidate_mapping_pages(file_inode(obj->filp)->i_mapping, 69468209390SRob Clark 0, (loff_t)-1); 6950e08270aSSushmita Susheelendra 6960e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 69768209390SRob Clark } 69868209390SRob Clark 6990e08270aSSushmita Susheelendra static void msm_gem_vunmap_locked(struct drm_gem_object *obj) 700e1e9db2cSRob Clark { 701e1e9db2cSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 702e1e9db2cSRob Clark 7030e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 7040e08270aSSushmita Susheelendra 705e1e9db2cSRob Clark if (!msm_obj->vaddr || WARN_ON(!is_vunmapable(msm_obj))) 706e1e9db2cSRob Clark return; 707e1e9db2cSRob Clark 708e1e9db2cSRob Clark vunmap(msm_obj->vaddr); 709e1e9db2cSRob Clark msm_obj->vaddr = NULL; 710e1e9db2cSRob Clark } 711e1e9db2cSRob Clark 7120e08270aSSushmita Susheelendra void msm_gem_vunmap(struct drm_gem_object *obj, enum msm_gem_lock subclass) 7130e08270aSSushmita Susheelendra { 7140e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 7150e08270aSSushmita Susheelendra 7160e08270aSSushmita Susheelendra mutex_lock_nested(&msm_obj->lock, subclass); 7170e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 7180e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 7190e08270aSSushmita Susheelendra } 7200e08270aSSushmita Susheelendra 721b6295f9aSRob Clark /* must be called before _move_to_active().. */ 722b6295f9aSRob Clark int msm_gem_sync_object(struct drm_gem_object *obj, 723b6295f9aSRob Clark struct msm_fence_context *fctx, bool exclusive) 724b6295f9aSRob Clark { 72552791eeeSChristian König struct dma_resv_list *fobj; 726f54d1867SChris Wilson struct dma_fence *fence; 727b6295f9aSRob Clark int i, ret; 728b6295f9aSRob Clark 72952791eeeSChristian König fobj = dma_resv_get_list(obj->resv); 730b6295f9aSRob Clark if (!fobj || (fobj->shared_count == 0)) { 73152791eeeSChristian König fence = dma_resv_get_excl(obj->resv); 732b6295f9aSRob Clark /* don't need to wait on our own fences, since ring is fifo */ 733b6295f9aSRob Clark if (fence && (fence->context != fctx->context)) { 734f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 735b6295f9aSRob Clark if (ret) 736b6295f9aSRob Clark return ret; 737b6295f9aSRob Clark } 738b6295f9aSRob Clark } 739b6295f9aSRob Clark 740b6295f9aSRob Clark if (!exclusive || !fobj) 741b6295f9aSRob Clark return 0; 742b6295f9aSRob Clark 743b6295f9aSRob Clark for (i = 0; i < fobj->shared_count; i++) { 744b6295f9aSRob Clark fence = rcu_dereference_protected(fobj->shared[i], 74552791eeeSChristian König dma_resv_held(obj->resv)); 746b6295f9aSRob Clark if (fence->context != fctx->context) { 747f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 748b6295f9aSRob Clark if (ret) 749b6295f9aSRob Clark return ret; 750b6295f9aSRob Clark } 751b6295f9aSRob Clark } 752b6295f9aSRob Clark 753b6295f9aSRob Clark return 0; 754b6295f9aSRob Clark } 755b6295f9aSRob Clark 7567198e6b0SRob Clark void msm_gem_move_to_active(struct drm_gem_object *obj, 757f54d1867SChris Wilson struct msm_gpu *gpu, bool exclusive, struct dma_fence *fence) 7587198e6b0SRob Clark { 7597198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 7604cd33c48SRob Clark WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED); 7617198e6b0SRob Clark msm_obj->gpu = gpu; 762b6295f9aSRob Clark if (exclusive) 76352791eeeSChristian König dma_resv_add_excl_fence(obj->resv, fence); 764bf6811f3SRob Clark else 76552791eeeSChristian König dma_resv_add_shared_fence(obj->resv, fence); 7667198e6b0SRob Clark list_del_init(&msm_obj->mm_list); 7677198e6b0SRob Clark list_add_tail(&msm_obj->mm_list, &gpu->active_list); 7687198e6b0SRob Clark } 7697198e6b0SRob Clark 7707198e6b0SRob Clark void msm_gem_move_to_inactive(struct drm_gem_object *obj) 7717198e6b0SRob Clark { 7727198e6b0SRob Clark struct drm_device *dev = obj->dev; 7737198e6b0SRob Clark struct msm_drm_private *priv = dev->dev_private; 7747198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 7757198e6b0SRob Clark 7767198e6b0SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 7777198e6b0SRob Clark 7787198e6b0SRob Clark msm_obj->gpu = NULL; 7797198e6b0SRob Clark list_del_init(&msm_obj->mm_list); 7807198e6b0SRob Clark list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 7817198e6b0SRob Clark } 7827198e6b0SRob Clark 783ba00c3f2SRob Clark int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout) 784ba00c3f2SRob Clark { 785b6295f9aSRob Clark bool write = !!(op & MSM_PREP_WRITE); 786f755e227SChris Wilson unsigned long remain = 787f755e227SChris Wilson op & MSM_PREP_NOSYNC ? 0 : timeout_to_jiffies(timeout); 788f755e227SChris Wilson long ret; 789b6295f9aSRob Clark 79052791eeeSChristian König ret = dma_resv_wait_timeout_rcu(obj->resv, write, 791f755e227SChris Wilson true, remain); 792f755e227SChris Wilson if (ret == 0) 793f755e227SChris Wilson return remain == 0 ? -EBUSY : -ETIMEDOUT; 794f755e227SChris Wilson else if (ret < 0) 795f755e227SChris Wilson return ret; 796ba00c3f2SRob Clark 7977198e6b0SRob Clark /* TODO cache maintenance */ 7987198e6b0SRob Clark 799b6295f9aSRob Clark return 0; 8007198e6b0SRob Clark } 8017198e6b0SRob Clark 8027198e6b0SRob Clark int msm_gem_cpu_fini(struct drm_gem_object *obj) 8037198e6b0SRob Clark { 8047198e6b0SRob Clark /* TODO cache maintenance */ 805c8afe684SRob Clark return 0; 806c8afe684SRob Clark } 807c8afe684SRob Clark 808c8afe684SRob Clark #ifdef CONFIG_DEBUG_FS 809f54d1867SChris Wilson static void describe_fence(struct dma_fence *fence, const char *type, 810b6295f9aSRob Clark struct seq_file *m) 811b6295f9aSRob Clark { 812f54d1867SChris Wilson if (!dma_fence_is_signaled(fence)) 813a3115621SDave Airlie seq_printf(m, "\t%9s: %s %s seq %llu\n", type, 814b6295f9aSRob Clark fence->ops->get_driver_name(fence), 815b6295f9aSRob Clark fence->ops->get_timeline_name(fence), 816b6295f9aSRob Clark fence->seqno); 817b6295f9aSRob Clark } 818b6295f9aSRob Clark 819c8afe684SRob Clark void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m) 820c8afe684SRob Clark { 821c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 82252791eeeSChristian König struct dma_resv *robj = obj->resv; 82352791eeeSChristian König struct dma_resv_list *fobj; 824f54d1867SChris Wilson struct dma_fence *fence; 8254b85f7f5SRob Clark struct msm_gem_vma *vma; 826c8afe684SRob Clark uint64_t off = drm_vma_node_start(&obj->vma_node); 8274cd33c48SRob Clark const char *madv; 828c8afe684SRob Clark 8290e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 830b6295f9aSRob Clark 8314cd33c48SRob Clark switch (msm_obj->madv) { 8324cd33c48SRob Clark case __MSM_MADV_PURGED: 8334cd33c48SRob Clark madv = " purged"; 8344cd33c48SRob Clark break; 8354cd33c48SRob Clark case MSM_MADV_DONTNEED: 8364cd33c48SRob Clark madv = " purgeable"; 8374cd33c48SRob Clark break; 8384cd33c48SRob Clark case MSM_MADV_WILLNEED: 8394cd33c48SRob Clark default: 8404cd33c48SRob Clark madv = ""; 8414cd33c48SRob Clark break; 8424cd33c48SRob Clark } 8434cd33c48SRob Clark 844575f0485SJordan Crouse seq_printf(m, "%08x: %c %2d (%2d) %08llx %p", 8457198e6b0SRob Clark msm_obj->flags, is_active(msm_obj) ? 'A' : 'I', 8462c935bc5SPeter Zijlstra obj->name, kref_read(&obj->refcount), 847667ce33eSRob Clark off, msm_obj->vaddr); 848667ce33eSRob Clark 8490815d774SJordan Crouse seq_printf(m, " %08zu %9s %-32s\n", obj->size, madv, msm_obj->name); 850667ce33eSRob Clark 851575f0485SJordan Crouse if (!list_empty(&msm_obj->vmas)) { 852575f0485SJordan Crouse 853575f0485SJordan Crouse seq_puts(m, " vmas:"); 854575f0485SJordan Crouse 855575f0485SJordan Crouse list_for_each_entry(vma, &msm_obj->vmas, list) 85690f94660SBrian Masney seq_printf(m, " [%s: %08llx,%s,inuse=%d]", 85790f94660SBrian Masney vma->aspace != NULL ? vma->aspace->name : NULL, 8587ad0e8cfSJordan Crouse vma->iova, vma->mapped ? "mapped" : "unmapped", 8597ad0e8cfSJordan Crouse vma->inuse); 860575f0485SJordan Crouse 861575f0485SJordan Crouse seq_puts(m, "\n"); 862575f0485SJordan Crouse } 863b6295f9aSRob Clark 864b6295f9aSRob Clark rcu_read_lock(); 865b6295f9aSRob Clark fobj = rcu_dereference(robj->fence); 866b6295f9aSRob Clark if (fobj) { 867b6295f9aSRob Clark unsigned int i, shared_count = fobj->shared_count; 868b6295f9aSRob Clark 869b6295f9aSRob Clark for (i = 0; i < shared_count; i++) { 870b6295f9aSRob Clark fence = rcu_dereference(fobj->shared[i]); 871b6295f9aSRob Clark describe_fence(fence, "Shared", m); 872b6295f9aSRob Clark } 873b6295f9aSRob Clark } 874b6295f9aSRob Clark 875b6295f9aSRob Clark fence = rcu_dereference(robj->fence_excl); 876b6295f9aSRob Clark if (fence) 877b6295f9aSRob Clark describe_fence(fence, "Exclusive", m); 878b6295f9aSRob Clark rcu_read_unlock(); 8790e08270aSSushmita Susheelendra 8800e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 881c8afe684SRob Clark } 882c8afe684SRob Clark 883c8afe684SRob Clark void msm_gem_describe_objects(struct list_head *list, struct seq_file *m) 884c8afe684SRob Clark { 885c8afe684SRob Clark struct msm_gem_object *msm_obj; 886c8afe684SRob Clark int count = 0; 887c8afe684SRob Clark size_t size = 0; 888c8afe684SRob Clark 8890815d774SJordan Crouse seq_puts(m, " flags id ref offset kaddr size madv name\n"); 890c8afe684SRob Clark list_for_each_entry(msm_obj, list, mm_list) { 891c8afe684SRob Clark struct drm_gem_object *obj = &msm_obj->base; 892575f0485SJordan Crouse seq_puts(m, " "); 893c8afe684SRob Clark msm_gem_describe(obj, m); 894c8afe684SRob Clark count++; 895c8afe684SRob Clark size += obj->size; 896c8afe684SRob Clark } 897c8afe684SRob Clark 898c8afe684SRob Clark seq_printf(m, "Total %d objects, %zu bytes\n", count, size); 899c8afe684SRob Clark } 900c8afe684SRob Clark #endif 901c8afe684SRob Clark 902eecd7fd8SEmil Velikov /* don't call directly! Use drm_gem_object_put_locked() and friends */ 903c8afe684SRob Clark void msm_gem_free_object(struct drm_gem_object *obj) 904c8afe684SRob Clark { 905c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 90648e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 90748e7f183SKristian H. Kristensen struct msm_drm_private *priv = dev->dev_private; 90848e7f183SKristian H. Kristensen 90948e7f183SKristian H. Kristensen if (llist_add(&msm_obj->freed, &priv->free_list)) 91048e7f183SKristian H. Kristensen queue_work(priv->wq, &priv->free_work); 91148e7f183SKristian H. Kristensen } 91248e7f183SKristian H. Kristensen 91348e7f183SKristian H. Kristensen static void free_object(struct msm_gem_object *msm_obj) 91448e7f183SKristian H. Kristensen { 91548e7f183SKristian H. Kristensen struct drm_gem_object *obj = &msm_obj->base; 91648e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 917c8afe684SRob Clark 918c8afe684SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 919c8afe684SRob Clark 9207198e6b0SRob Clark /* object should not be on active list: */ 9217198e6b0SRob Clark WARN_ON(is_active(msm_obj)); 9227198e6b0SRob Clark 923c8afe684SRob Clark list_del(&msm_obj->mm_list); 924c8afe684SRob Clark 9250e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 9260e08270aSSushmita Susheelendra 9274fe5f65eSRob Clark put_iova(obj); 928c8afe684SRob Clark 92905b84911SRob Clark if (obj->import_attach) { 9308b6b7d84SDaniel Vetter WARN_ON(msm_obj->vaddr); 93105b84911SRob Clark 93205b84911SRob Clark /* Don't drop the pages for imported dmabuf, as they are not 93305b84911SRob Clark * ours, just free the array we allocated: 93405b84911SRob Clark */ 93505b84911SRob Clark if (msm_obj->pages) 9362098105eSMichal Hocko kvfree(msm_obj->pages); 93705b84911SRob Clark 938f28730c8Sjilai wang drm_prime_gem_destroy(obj, msm_obj->sgt); 93905b84911SRob Clark } else { 9400e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 941c8afe684SRob Clark put_pages(obj); 94205b84911SRob Clark } 943c8afe684SRob Clark 944c8afe684SRob Clark drm_gem_object_release(obj); 945c8afe684SRob Clark 9460e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 947c8afe684SRob Clark kfree(msm_obj); 948c8afe684SRob Clark } 949c8afe684SRob Clark 95048e7f183SKristian H. Kristensen void msm_gem_free_work(struct work_struct *work) 95148e7f183SKristian H. Kristensen { 95248e7f183SKristian H. Kristensen struct msm_drm_private *priv = 95348e7f183SKristian H. Kristensen container_of(work, struct msm_drm_private, free_work); 95448e7f183SKristian H. Kristensen struct drm_device *dev = priv->dev; 95548e7f183SKristian H. Kristensen struct llist_node *freed; 95648e7f183SKristian H. Kristensen struct msm_gem_object *msm_obj, *next; 95748e7f183SKristian H. Kristensen 95848e7f183SKristian H. Kristensen while ((freed = llist_del_all(&priv->free_list))) { 95948e7f183SKristian H. Kristensen 96048e7f183SKristian H. Kristensen mutex_lock(&dev->struct_mutex); 96148e7f183SKristian H. Kristensen 96248e7f183SKristian H. Kristensen llist_for_each_entry_safe(msm_obj, next, 96348e7f183SKristian H. Kristensen freed, freed) 96448e7f183SKristian H. Kristensen free_object(msm_obj); 96548e7f183SKristian H. Kristensen 96648e7f183SKristian H. Kristensen mutex_unlock(&dev->struct_mutex); 96748e7f183SKristian H. Kristensen 96848e7f183SKristian H. Kristensen if (need_resched()) 96948e7f183SKristian H. Kristensen break; 97048e7f183SKristian H. Kristensen } 97148e7f183SKristian H. Kristensen } 97248e7f183SKristian H. Kristensen 973c8afe684SRob Clark /* convenience method to construct a GEM buffer object, and userspace handle */ 974c8afe684SRob Clark int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file, 9750815d774SJordan Crouse uint32_t size, uint32_t flags, uint32_t *handle, 9760815d774SJordan Crouse char *name) 977c8afe684SRob Clark { 978c8afe684SRob Clark struct drm_gem_object *obj; 979c8afe684SRob Clark int ret; 980c8afe684SRob Clark 981c8afe684SRob Clark obj = msm_gem_new(dev, size, flags); 982c8afe684SRob Clark 983c8afe684SRob Clark if (IS_ERR(obj)) 984c8afe684SRob Clark return PTR_ERR(obj); 985c8afe684SRob Clark 9860815d774SJordan Crouse if (name) 9870815d774SJordan Crouse msm_gem_object_set_name(obj, "%s", name); 9880815d774SJordan Crouse 989c8afe684SRob Clark ret = drm_gem_handle_create(file, obj, handle); 990c8afe684SRob Clark 991c8afe684SRob Clark /* drop reference from allocate - handle holds it now */ 992f7d33950SEmil Velikov drm_gem_object_put(obj); 993c8afe684SRob Clark 994c8afe684SRob Clark return ret; 995c8afe684SRob Clark } 996c8afe684SRob Clark 997*3c9edd9cSThomas Zimmermann static const struct vm_operations_struct vm_ops = { 998*3c9edd9cSThomas Zimmermann .fault = msm_gem_fault, 999*3c9edd9cSThomas Zimmermann .open = drm_gem_vm_open, 1000*3c9edd9cSThomas Zimmermann .close = drm_gem_vm_close, 1001*3c9edd9cSThomas Zimmermann }; 1002*3c9edd9cSThomas Zimmermann 1003*3c9edd9cSThomas Zimmermann static const struct drm_gem_object_funcs msm_gem_object_funcs = { 1004*3c9edd9cSThomas Zimmermann .free = msm_gem_free_object, 1005*3c9edd9cSThomas Zimmermann .pin = msm_gem_prime_pin, 1006*3c9edd9cSThomas Zimmermann .unpin = msm_gem_prime_unpin, 1007*3c9edd9cSThomas Zimmermann .get_sg_table = msm_gem_prime_get_sg_table, 1008*3c9edd9cSThomas Zimmermann .vmap = msm_gem_prime_vmap, 1009*3c9edd9cSThomas Zimmermann .vunmap = msm_gem_prime_vunmap, 1010*3c9edd9cSThomas Zimmermann .vm_ops = &vm_ops, 1011*3c9edd9cSThomas Zimmermann }; 1012*3c9edd9cSThomas Zimmermann 101305b84911SRob Clark static int msm_gem_new_impl(struct drm_device *dev, 101405b84911SRob Clark uint32_t size, uint32_t flags, 10153cbdc8d8SAkhil P Oommen struct drm_gem_object **obj) 1016c8afe684SRob Clark { 1017c8afe684SRob Clark struct msm_gem_object *msm_obj; 1018c8afe684SRob Clark 1019c8afe684SRob Clark switch (flags & MSM_BO_CACHE_MASK) { 1020c8afe684SRob Clark case MSM_BO_UNCACHED: 1021c8afe684SRob Clark case MSM_BO_CACHED: 1022c8afe684SRob Clark case MSM_BO_WC: 1023c8afe684SRob Clark break; 1024c8afe684SRob Clark default: 10256a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "invalid cache flag: %x\n", 1026c8afe684SRob Clark (flags & MSM_BO_CACHE_MASK)); 102705b84911SRob Clark return -EINVAL; 1028c8afe684SRob Clark } 1029c8afe684SRob Clark 1030667ce33eSRob Clark msm_obj = kzalloc(sizeof(*msm_obj), GFP_KERNEL); 103105b84911SRob Clark if (!msm_obj) 103205b84911SRob Clark return -ENOMEM; 1033c8afe684SRob Clark 10340e08270aSSushmita Susheelendra mutex_init(&msm_obj->lock); 10350e08270aSSushmita Susheelendra 1036c8afe684SRob Clark msm_obj->flags = flags; 10374cd33c48SRob Clark msm_obj->madv = MSM_MADV_WILLNEED; 1038c8afe684SRob Clark 10397198e6b0SRob Clark INIT_LIST_HEAD(&msm_obj->submit_entry); 10404b85f7f5SRob Clark INIT_LIST_HEAD(&msm_obj->vmas); 10414b85f7f5SRob Clark 104205b84911SRob Clark *obj = &msm_obj->base; 1043*3c9edd9cSThomas Zimmermann (*obj)->funcs = &msm_gem_object_funcs; 104405b84911SRob Clark 104505b84911SRob Clark return 0; 104605b84911SRob Clark } 104705b84911SRob Clark 10480e08270aSSushmita Susheelendra static struct drm_gem_object *_msm_gem_new(struct drm_device *dev, 10490e08270aSSushmita Susheelendra uint32_t size, uint32_t flags, bool struct_mutex_locked) 105005b84911SRob Clark { 1051f4839bd5SRob Clark struct msm_drm_private *priv = dev->dev_private; 10523cbdc8d8SAkhil P Oommen struct msm_gem_object *msm_obj; 1053871d812aSRob Clark struct drm_gem_object *obj = NULL; 1054f4839bd5SRob Clark bool use_vram = false; 105505b84911SRob Clark int ret; 105605b84911SRob Clark 105705b84911SRob Clark size = PAGE_ALIGN(size); 105805b84911SRob Clark 1059c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) 1060f4839bd5SRob Clark use_vram = true; 106186f46f25SJonathan Marek else if ((flags & (MSM_BO_STOLEN | MSM_BO_SCANOUT)) && priv->vram.size) 1062f4839bd5SRob Clark use_vram = true; 1063f4839bd5SRob Clark 1064f4839bd5SRob Clark if (WARN_ON(use_vram && !priv->vram.size)) 1065f4839bd5SRob Clark return ERR_PTR(-EINVAL); 1066f4839bd5SRob Clark 10671a5dff5dSJordan Crouse /* Disallow zero sized objects as they make the underlying 10681a5dff5dSJordan Crouse * infrastructure grumpy 10691a5dff5dSJordan Crouse */ 10701a5dff5dSJordan Crouse if (size == 0) 10711a5dff5dSJordan Crouse return ERR_PTR(-EINVAL); 10721a5dff5dSJordan Crouse 10733cbdc8d8SAkhil P Oommen ret = msm_gem_new_impl(dev, size, flags, &obj); 107405b84911SRob Clark if (ret) 107505b84911SRob Clark goto fail; 107605b84911SRob Clark 10773cbdc8d8SAkhil P Oommen msm_obj = to_msm_bo(obj); 10783cbdc8d8SAkhil P Oommen 1079f4839bd5SRob Clark if (use_vram) { 10804b85f7f5SRob Clark struct msm_gem_vma *vma; 1081f4839bd5SRob Clark struct page **pages; 1082b3949a9aSHans Verkuil 1083b3949a9aSHans Verkuil mutex_lock(&msm_obj->lock); 1084f4839bd5SRob Clark 10854b85f7f5SRob Clark vma = add_vma(obj, NULL); 1086b3949a9aSHans Verkuil mutex_unlock(&msm_obj->lock); 10874b85f7f5SRob Clark if (IS_ERR(vma)) { 10884b85f7f5SRob Clark ret = PTR_ERR(vma); 10894b85f7f5SRob Clark goto fail; 10904b85f7f5SRob Clark } 10914b85f7f5SRob Clark 10924b85f7f5SRob Clark to_msm_bo(obj)->vram_node = &vma->node; 10934b85f7f5SRob Clark 1094f4839bd5SRob Clark drm_gem_private_object_init(dev, obj, size); 1095f4839bd5SRob Clark 1096f4839bd5SRob Clark pages = get_pages(obj); 1097f4839bd5SRob Clark if (IS_ERR(pages)) { 1098f4839bd5SRob Clark ret = PTR_ERR(pages); 1099f4839bd5SRob Clark goto fail; 1100f4839bd5SRob Clark } 11014b85f7f5SRob Clark 11024b85f7f5SRob Clark vma->iova = physaddr(obj); 1103f4839bd5SRob Clark } else { 110405b84911SRob Clark ret = drm_gem_object_init(dev, obj, size); 110505b84911SRob Clark if (ret) 110605b84911SRob Clark goto fail; 11070abdba47SLucas Stach /* 11080abdba47SLucas Stach * Our buffers are kept pinned, so allocating them from the 11090abdba47SLucas Stach * MOVABLE zone is a really bad idea, and conflicts with CMA. 11100abdba47SLucas Stach * See comments above new_inode() why this is required _and_ 11110abdba47SLucas Stach * expected if you're going to pin these pages. 11120abdba47SLucas Stach */ 11130abdba47SLucas Stach mapping_set_gfp_mask(obj->filp->f_mapping, GFP_HIGHUSER); 1114871d812aSRob Clark } 111505b84911SRob Clark 11163cbdc8d8SAkhil P Oommen if (struct_mutex_locked) { 11173cbdc8d8SAkhil P Oommen WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 11183cbdc8d8SAkhil P Oommen list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 11193cbdc8d8SAkhil P Oommen } else { 11203cbdc8d8SAkhil P Oommen mutex_lock(&dev->struct_mutex); 11213cbdc8d8SAkhil P Oommen list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 11223cbdc8d8SAkhil P Oommen mutex_unlock(&dev->struct_mutex); 11233cbdc8d8SAkhil P Oommen } 11243cbdc8d8SAkhil P Oommen 112505b84911SRob Clark return obj; 112605b84911SRob Clark 112705b84911SRob Clark fail: 1128f7d33950SEmil Velikov drm_gem_object_put(obj); 112905b84911SRob Clark return ERR_PTR(ret); 113005b84911SRob Clark } 113105b84911SRob Clark 11320e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev, 11330e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 11340e08270aSSushmita Susheelendra { 11350e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, true); 11360e08270aSSushmita Susheelendra } 11370e08270aSSushmita Susheelendra 11380e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new(struct drm_device *dev, 11390e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 11400e08270aSSushmita Susheelendra { 11410e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, false); 11420e08270aSSushmita Susheelendra } 11430e08270aSSushmita Susheelendra 114405b84911SRob Clark struct drm_gem_object *msm_gem_import(struct drm_device *dev, 114579f0e202SRob Clark struct dma_buf *dmabuf, struct sg_table *sgt) 114605b84911SRob Clark { 11473cbdc8d8SAkhil P Oommen struct msm_drm_private *priv = dev->dev_private; 114805b84911SRob Clark struct msm_gem_object *msm_obj; 114905b84911SRob Clark struct drm_gem_object *obj; 115079f0e202SRob Clark uint32_t size; 115105b84911SRob Clark int ret, npages; 115205b84911SRob Clark 1153871d812aSRob Clark /* if we don't have IOMMU, don't bother pretending we can import: */ 1154c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) { 11556a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "cannot import without IOMMU\n"); 1156871d812aSRob Clark return ERR_PTR(-EINVAL); 1157871d812aSRob Clark } 1158871d812aSRob Clark 115979f0e202SRob Clark size = PAGE_ALIGN(dmabuf->size); 116005b84911SRob Clark 11613cbdc8d8SAkhil P Oommen ret = msm_gem_new_impl(dev, size, MSM_BO_WC, &obj); 116205b84911SRob Clark if (ret) 116305b84911SRob Clark goto fail; 116405b84911SRob Clark 116505b84911SRob Clark drm_gem_private_object_init(dev, obj, size); 116605b84911SRob Clark 116705b84911SRob Clark npages = size / PAGE_SIZE; 116805b84911SRob Clark 116905b84911SRob Clark msm_obj = to_msm_bo(obj); 11700e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 117105b84911SRob Clark msm_obj->sgt = sgt; 11722098105eSMichal Hocko msm_obj->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 117305b84911SRob Clark if (!msm_obj->pages) { 11740e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 117505b84911SRob Clark ret = -ENOMEM; 117605b84911SRob Clark goto fail; 117705b84911SRob Clark } 117805b84911SRob Clark 117905b84911SRob Clark ret = drm_prime_sg_to_page_addr_arrays(sgt, msm_obj->pages, NULL, npages); 11800e08270aSSushmita Susheelendra if (ret) { 11810e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 118205b84911SRob Clark goto fail; 11830e08270aSSushmita Susheelendra } 118405b84911SRob Clark 11850e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 11863cbdc8d8SAkhil P Oommen 11873cbdc8d8SAkhil P Oommen mutex_lock(&dev->struct_mutex); 11883cbdc8d8SAkhil P Oommen list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 11893cbdc8d8SAkhil P Oommen mutex_unlock(&dev->struct_mutex); 11903cbdc8d8SAkhil P Oommen 1191c8afe684SRob Clark return obj; 1192c8afe684SRob Clark 1193c8afe684SRob Clark fail: 1194f7d33950SEmil Velikov drm_gem_object_put(obj); 1195c8afe684SRob Clark return ERR_PTR(ret); 1196c8afe684SRob Clark } 11978223286dSJordan Crouse 11988223286dSJordan Crouse static void *_msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 11998223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 12008223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova, bool locked) 12018223286dSJordan Crouse { 12028223286dSJordan Crouse void *vaddr; 12038223286dSJordan Crouse struct drm_gem_object *obj = _msm_gem_new(dev, size, flags, locked); 12048223286dSJordan Crouse int ret; 12058223286dSJordan Crouse 12068223286dSJordan Crouse if (IS_ERR(obj)) 12078223286dSJordan Crouse return ERR_CAST(obj); 12088223286dSJordan Crouse 12098223286dSJordan Crouse if (iova) { 12109fe041f6SJordan Crouse ret = msm_gem_get_and_pin_iova(obj, aspace, iova); 121193f7abf1SJordan Crouse if (ret) 121293f7abf1SJordan Crouse goto err; 12138223286dSJordan Crouse } 12148223286dSJordan Crouse 12158223286dSJordan Crouse vaddr = msm_gem_get_vaddr(obj); 1216c9811d0fSWei Yongjun if (IS_ERR(vaddr)) { 12177ad0e8cfSJordan Crouse msm_gem_unpin_iova(obj, aspace); 121893f7abf1SJordan Crouse ret = PTR_ERR(vaddr); 121993f7abf1SJordan Crouse goto err; 12208223286dSJordan Crouse } 12218223286dSJordan Crouse 12228223286dSJordan Crouse if (bo) 12238223286dSJordan Crouse *bo = obj; 12248223286dSJordan Crouse 12258223286dSJordan Crouse return vaddr; 122693f7abf1SJordan Crouse err: 122793f7abf1SJordan Crouse if (locked) 1228eecd7fd8SEmil Velikov drm_gem_object_put_locked(obj); 122993f7abf1SJordan Crouse else 1230f7d33950SEmil Velikov drm_gem_object_put(obj); 123193f7abf1SJordan Crouse 123293f7abf1SJordan Crouse return ERR_PTR(ret); 123393f7abf1SJordan Crouse 12348223286dSJordan Crouse } 12358223286dSJordan Crouse 12368223286dSJordan Crouse void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 12378223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 12388223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 12398223286dSJordan Crouse { 12408223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, false); 12418223286dSJordan Crouse } 12428223286dSJordan Crouse 12438223286dSJordan Crouse void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size, 12448223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 12458223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 12468223286dSJordan Crouse { 12478223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, true); 12488223286dSJordan Crouse } 12491e29dff0SJordan Crouse 12501e29dff0SJordan Crouse void msm_gem_kernel_put(struct drm_gem_object *bo, 12511e29dff0SJordan Crouse struct msm_gem_address_space *aspace, bool locked) 12521e29dff0SJordan Crouse { 12531e29dff0SJordan Crouse if (IS_ERR_OR_NULL(bo)) 12541e29dff0SJordan Crouse return; 12551e29dff0SJordan Crouse 12561e29dff0SJordan Crouse msm_gem_put_vaddr(bo); 12577ad0e8cfSJordan Crouse msm_gem_unpin_iova(bo, aspace); 12581e29dff0SJordan Crouse 12591e29dff0SJordan Crouse if (locked) 1260eecd7fd8SEmil Velikov drm_gem_object_put_locked(bo); 12611e29dff0SJordan Crouse else 1262f7d33950SEmil Velikov drm_gem_object_put(bo); 12631e29dff0SJordan Crouse } 12640815d774SJordan Crouse 12650815d774SJordan Crouse void msm_gem_object_set_name(struct drm_gem_object *bo, const char *fmt, ...) 12660815d774SJordan Crouse { 12670815d774SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(bo); 12680815d774SJordan Crouse va_list ap; 12690815d774SJordan Crouse 12700815d774SJordan Crouse if (!fmt) 12710815d774SJordan Crouse return; 12720815d774SJordan Crouse 12730815d774SJordan Crouse va_start(ap, fmt); 12740815d774SJordan Crouse vsnprintf(msm_obj->name, sizeof(msm_obj->name), fmt, ap); 12750815d774SJordan Crouse va_end(ap); 12760815d774SJordan Crouse } 1277