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 553de433c5SRob Clark if (get_dma_ops(dev)) { 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 683de433c5SRob Clark if (get_dma_ops(dev)) { 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 129c8afe684SRob Clark msm_obj->sgt = drm_prime_pages_to_sg(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 250a5f74ec7SSouptick Joarder 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, 3928bdcd949SRob Clark struct msm_gem_address_space *aspace, uint64_t *iova) 393c8afe684SRob Clark { 394c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 3954b85f7f5SRob Clark struct msm_gem_vma *vma; 396c8afe684SRob Clark int ret = 0; 397c8afe684SRob Clark 398c0ee9794SJordan Crouse WARN_ON(!mutex_is_locked(&msm_obj->lock)); 399cb1e3818SRob Clark 4004b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 401871d812aSRob Clark 4024b85f7f5SRob Clark if (!vma) { 4034b85f7f5SRob Clark vma = add_vma(obj, aspace); 404c0ee9794SJordan Crouse if (IS_ERR(vma)) 405c0ee9794SJordan Crouse return PTR_ERR(vma); 4064b85f7f5SRob Clark 407c0ee9794SJordan Crouse ret = msm_gem_init_vma(aspace, vma, obj->size >> PAGE_SHIFT); 408c0ee9794SJordan Crouse if (ret) { 409c0ee9794SJordan Crouse del_vma(vma); 410c0ee9794SJordan Crouse return ret; 411c8afe684SRob Clark } 4124b85f7f5SRob Clark } 4134b85f7f5SRob Clark 4144b85f7f5SRob Clark *iova = vma->iova; 4154b85f7f5SRob Clark return 0; 416c0ee9794SJordan Crouse } 4174b85f7f5SRob Clark 418c0ee9794SJordan Crouse static int msm_gem_pin_iova(struct drm_gem_object *obj, 419c0ee9794SJordan Crouse struct msm_gem_address_space *aspace) 420c0ee9794SJordan Crouse { 421c0ee9794SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 422c0ee9794SJordan Crouse struct msm_gem_vma *vma; 423c0ee9794SJordan Crouse struct page **pages; 424bbc2cd07SRob Clark int prot = IOMMU_READ; 425bbc2cd07SRob Clark 426bbc2cd07SRob Clark if (!(msm_obj->flags & MSM_BO_GPU_READONLY)) 427bbc2cd07SRob Clark prot |= IOMMU_WRITE; 428c0ee9794SJordan Crouse 429c0ee9794SJordan Crouse WARN_ON(!mutex_is_locked(&msm_obj->lock)); 430c0ee9794SJordan Crouse 431c0ee9794SJordan Crouse if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) 432c0ee9794SJordan Crouse return -EBUSY; 433c0ee9794SJordan Crouse 434c0ee9794SJordan Crouse vma = lookup_vma(obj, aspace); 435c0ee9794SJordan Crouse if (WARN_ON(!vma)) 436c0ee9794SJordan Crouse return -EINVAL; 437c0ee9794SJordan Crouse 438c0ee9794SJordan Crouse pages = get_pages(obj); 439c0ee9794SJordan Crouse if (IS_ERR(pages)) 440c0ee9794SJordan Crouse return PTR_ERR(pages); 441c0ee9794SJordan Crouse 442bbc2cd07SRob Clark return msm_gem_map_vma(aspace, vma, prot, 443bbc2cd07SRob Clark msm_obj->sgt, obj->size >> PAGE_SHIFT); 444c0ee9794SJordan Crouse } 445c0ee9794SJordan Crouse 4469fe041f6SJordan Crouse /* get iova and pin it. Should have a matching put */ 4479fe041f6SJordan Crouse int msm_gem_get_and_pin_iova(struct drm_gem_object *obj, 448c0ee9794SJordan Crouse struct msm_gem_address_space *aspace, uint64_t *iova) 449c0ee9794SJordan Crouse { 450c0ee9794SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 451c0ee9794SJordan Crouse u64 local; 452c0ee9794SJordan Crouse int ret; 453c0ee9794SJordan Crouse 454c0ee9794SJordan Crouse mutex_lock(&msm_obj->lock); 455c0ee9794SJordan Crouse 456c0ee9794SJordan Crouse ret = msm_gem_get_iova_locked(obj, aspace, &local); 457c0ee9794SJordan Crouse 458c0ee9794SJordan Crouse if (!ret) 459c0ee9794SJordan Crouse ret = msm_gem_pin_iova(obj, aspace); 460c0ee9794SJordan Crouse 461c0ee9794SJordan Crouse if (!ret) 462c0ee9794SJordan Crouse *iova = local; 463c0ee9794SJordan Crouse 4640e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 465c8afe684SRob Clark return ret; 466c8afe684SRob Clark } 467c8afe684SRob Clark 4687ad0e8cfSJordan Crouse /* 4697ad0e8cfSJordan Crouse * Get an iova but don't pin it. Doesn't need a put because iovas are currently 4707ad0e8cfSJordan Crouse * valid for the life of the object 4717ad0e8cfSJordan Crouse */ 4729fe041f6SJordan Crouse int msm_gem_get_iova(struct drm_gem_object *obj, 4739fe041f6SJordan Crouse struct msm_gem_address_space *aspace, uint64_t *iova) 4749fe041f6SJordan Crouse { 4759fe041f6SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 4769fe041f6SJordan Crouse int ret; 4779fe041f6SJordan Crouse 4789fe041f6SJordan Crouse mutex_lock(&msm_obj->lock); 4799fe041f6SJordan Crouse ret = msm_gem_get_iova_locked(obj, aspace, iova); 4809fe041f6SJordan Crouse mutex_unlock(&msm_obj->lock); 4819fe041f6SJordan Crouse 4829fe041f6SJordan Crouse return ret; 4839fe041f6SJordan Crouse } 4849fe041f6SJordan Crouse 4852638d90aSRob Clark /* get iova without taking a reference, used in places where you have 4869fe041f6SJordan Crouse * already done a 'msm_gem_get_and_pin_iova' or 'msm_gem_get_iova' 4872638d90aSRob Clark */ 4888bdcd949SRob Clark uint64_t msm_gem_iova(struct drm_gem_object *obj, 4898bdcd949SRob Clark struct msm_gem_address_space *aspace) 4902638d90aSRob Clark { 4910e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 4924b85f7f5SRob Clark struct msm_gem_vma *vma; 4934b85f7f5SRob Clark 4940e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 4954b85f7f5SRob Clark vma = lookup_vma(obj, aspace); 4960e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 4974b85f7f5SRob Clark WARN_ON(!vma); 4984b85f7f5SRob Clark 4994b85f7f5SRob Clark return vma ? vma->iova : 0; 5002638d90aSRob Clark } 5012638d90aSRob Clark 5027ad0e8cfSJordan Crouse /* 5037ad0e8cfSJordan Crouse * Unpin a iova by updating the reference counts. The memory isn't actually 5047ad0e8cfSJordan Crouse * purged until something else (shrinker, mm_notifier, destroy, etc) decides 5057ad0e8cfSJordan Crouse * to get rid of it 5067ad0e8cfSJordan Crouse */ 5077ad0e8cfSJordan Crouse void msm_gem_unpin_iova(struct drm_gem_object *obj, 5088bdcd949SRob Clark struct msm_gem_address_space *aspace) 509c8afe684SRob Clark { 5107ad0e8cfSJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(obj); 5117ad0e8cfSJordan Crouse struct msm_gem_vma *vma; 5127ad0e8cfSJordan Crouse 5137ad0e8cfSJordan Crouse mutex_lock(&msm_obj->lock); 5147ad0e8cfSJordan Crouse vma = lookup_vma(obj, aspace); 5157ad0e8cfSJordan Crouse 5167ad0e8cfSJordan Crouse if (!WARN_ON(!vma)) 5177ad0e8cfSJordan Crouse msm_gem_unmap_vma(aspace, vma); 5187ad0e8cfSJordan Crouse 5197ad0e8cfSJordan Crouse mutex_unlock(&msm_obj->lock); 520c8afe684SRob Clark } 521c8afe684SRob Clark 522c8afe684SRob Clark int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 523c8afe684SRob Clark struct drm_mode_create_dumb *args) 524c8afe684SRob Clark { 525c8afe684SRob Clark args->pitch = align_pitch(args->width, args->bpp); 526c8afe684SRob Clark args->size = PAGE_ALIGN(args->pitch * args->height); 527c8afe684SRob Clark return msm_gem_new_handle(dev, file, args->size, 5280815d774SJordan Crouse MSM_BO_SCANOUT | MSM_BO_WC, &args->handle, "dumb"); 529c8afe684SRob Clark } 530c8afe684SRob Clark 531c8afe684SRob Clark int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 532c8afe684SRob Clark uint32_t handle, uint64_t *offset) 533c8afe684SRob Clark { 534c8afe684SRob Clark struct drm_gem_object *obj; 535c8afe684SRob Clark int ret = 0; 536c8afe684SRob Clark 537c8afe684SRob Clark /* GEM does all our handle to object mapping */ 538a8ad0bd8SChris Wilson obj = drm_gem_object_lookup(file, handle); 539c8afe684SRob Clark if (obj == NULL) { 540c8afe684SRob Clark ret = -ENOENT; 541c8afe684SRob Clark goto fail; 542c8afe684SRob Clark } 543c8afe684SRob Clark 544c8afe684SRob Clark *offset = msm_gem_mmap_offset(obj); 545c8afe684SRob Clark 546dc9a9b32SSteve Kowalik drm_gem_object_put_unlocked(obj); 547c8afe684SRob Clark 548c8afe684SRob Clark fail: 549c8afe684SRob Clark return ret; 550c8afe684SRob Clark } 551c8afe684SRob Clark 552fad33f4bSRob Clark static void *get_vaddr(struct drm_gem_object *obj, unsigned madv) 553c8afe684SRob Clark { 5540e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 5550e08270aSSushmita Susheelendra int ret = 0; 5560e08270aSSushmita Susheelendra 5570e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 5580e08270aSSushmita Susheelendra 559fad33f4bSRob Clark if (WARN_ON(msm_obj->madv > madv)) { 5606a41da17SMamta Shukla DRM_DEV_ERROR(obj->dev->dev, "Invalid madv state: %u vs %u\n", 561fad33f4bSRob Clark msm_obj->madv, madv); 5620e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5630e08270aSSushmita Susheelendra return ERR_PTR(-EBUSY); 564c8afe684SRob Clark } 565c8afe684SRob Clark 5660e08270aSSushmita Susheelendra /* increment vmap_count *before* vmap() call, so shrinker can 5670e08270aSSushmita Susheelendra * check vmap_count (is_vunmapable()) outside of msm_obj->lock. 5680e08270aSSushmita Susheelendra * This guarantees that we won't try to msm_gem_vunmap() this 5690e08270aSSushmita Susheelendra * same object from within the vmap() call (while we already 5700e08270aSSushmita Susheelendra * hold msm_obj->lock) 5710e08270aSSushmita Susheelendra */ 5720e08270aSSushmita Susheelendra msm_obj->vmap_count++; 5730e08270aSSushmita Susheelendra 5740e08270aSSushmita Susheelendra if (!msm_obj->vaddr) { 5750e08270aSSushmita Susheelendra struct page **pages = get_pages(obj); 5760e08270aSSushmita Susheelendra if (IS_ERR(pages)) { 5770e08270aSSushmita Susheelendra ret = PTR_ERR(pages); 5780e08270aSSushmita Susheelendra goto fail; 5790e08270aSSushmita Susheelendra } 5800e08270aSSushmita Susheelendra msm_obj->vaddr = vmap(pages, obj->size >> PAGE_SHIFT, 5810e08270aSSushmita Susheelendra VM_MAP, pgprot_writecombine(PAGE_KERNEL)); 5820e08270aSSushmita Susheelendra if (msm_obj->vaddr == NULL) { 5830e08270aSSushmita Susheelendra ret = -ENOMEM; 5840e08270aSSushmita Susheelendra goto fail; 5850e08270aSSushmita Susheelendra } 5860e08270aSSushmita Susheelendra } 5870e08270aSSushmita Susheelendra 5880e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5890e08270aSSushmita Susheelendra return msm_obj->vaddr; 5900e08270aSSushmita Susheelendra 5910e08270aSSushmita Susheelendra fail: 592e1e9db2cSRob Clark msm_obj->vmap_count--; 5930e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 5940e08270aSSushmita Susheelendra return ERR_PTR(ret); 59518f23049SRob Clark } 59618f23049SRob Clark 597fad33f4bSRob Clark void *msm_gem_get_vaddr(struct drm_gem_object *obj) 598fad33f4bSRob Clark { 599fad33f4bSRob Clark return get_vaddr(obj, MSM_MADV_WILLNEED); 600fad33f4bSRob Clark } 601fad33f4bSRob Clark 602fad33f4bSRob Clark /* 603fad33f4bSRob Clark * Don't use this! It is for the very special case of dumping 604fad33f4bSRob Clark * submits from GPU hangs or faults, were the bo may already 605fad33f4bSRob Clark * be MSM_MADV_DONTNEED, but we know the buffer is still on the 606fad33f4bSRob Clark * active list. 607fad33f4bSRob Clark */ 608fad33f4bSRob Clark void *msm_gem_get_vaddr_active(struct drm_gem_object *obj) 609fad33f4bSRob Clark { 610fad33f4bSRob Clark return get_vaddr(obj, __MSM_MADV_PURGED); 611fad33f4bSRob Clark } 612fad33f4bSRob Clark 61318f23049SRob Clark void msm_gem_put_vaddr(struct drm_gem_object *obj) 61418f23049SRob Clark { 6150e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 6160e08270aSSushmita Susheelendra 6170e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 6180e08270aSSushmita Susheelendra WARN_ON(msm_obj->vmap_count < 1); 6190e08270aSSushmita Susheelendra msm_obj->vmap_count--; 6200e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 62118f23049SRob Clark } 62218f23049SRob Clark 6234cd33c48SRob Clark /* Update madvise status, returns true if not purged, else 6244cd33c48SRob Clark * false or -errno. 6254cd33c48SRob Clark */ 6264cd33c48SRob Clark int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv) 6274cd33c48SRob Clark { 6284cd33c48SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 6294cd33c48SRob Clark 6300e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 6310e08270aSSushmita Susheelendra 6324cd33c48SRob Clark WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex)); 6334cd33c48SRob Clark 6344cd33c48SRob Clark if (msm_obj->madv != __MSM_MADV_PURGED) 6354cd33c48SRob Clark msm_obj->madv = madv; 6364cd33c48SRob Clark 6370e08270aSSushmita Susheelendra madv = msm_obj->madv; 6380e08270aSSushmita Susheelendra 6390e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 6400e08270aSSushmita Susheelendra 6410e08270aSSushmita Susheelendra return (madv != __MSM_MADV_PURGED); 6424cd33c48SRob Clark } 6434cd33c48SRob Clark 6440e08270aSSushmita Susheelendra void msm_gem_purge(struct drm_gem_object *obj, enum msm_gem_lock subclass) 64568209390SRob Clark { 64668209390SRob Clark struct drm_device *dev = obj->dev; 64768209390SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 64868209390SRob Clark 64968209390SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 65068209390SRob Clark WARN_ON(!is_purgeable(msm_obj)); 65168209390SRob Clark WARN_ON(obj->import_attach); 65268209390SRob Clark 6530e08270aSSushmita Susheelendra mutex_lock_nested(&msm_obj->lock, subclass); 6540e08270aSSushmita Susheelendra 65568209390SRob Clark put_iova(obj); 65668209390SRob Clark 6570e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 65868209390SRob Clark 65968209390SRob Clark put_pages(obj); 66068209390SRob Clark 66168209390SRob Clark msm_obj->madv = __MSM_MADV_PURGED; 66268209390SRob Clark 66368209390SRob Clark drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); 66468209390SRob Clark drm_gem_free_mmap_offset(obj); 66568209390SRob Clark 66668209390SRob Clark /* Our goal here is to return as much of the memory as 66768209390SRob Clark * is possible back to the system as we are called from OOM. 66868209390SRob Clark * To do this we must instruct the shmfs to drop all of its 66968209390SRob Clark * backing pages, *now*. 67068209390SRob Clark */ 67168209390SRob Clark shmem_truncate_range(file_inode(obj->filp), 0, (loff_t)-1); 67268209390SRob Clark 67368209390SRob Clark invalidate_mapping_pages(file_inode(obj->filp)->i_mapping, 67468209390SRob Clark 0, (loff_t)-1); 6750e08270aSSushmita Susheelendra 6760e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 67768209390SRob Clark } 67868209390SRob Clark 6790e08270aSSushmita Susheelendra static void msm_gem_vunmap_locked(struct drm_gem_object *obj) 680e1e9db2cSRob Clark { 681e1e9db2cSRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 682e1e9db2cSRob Clark 6830e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&msm_obj->lock)); 6840e08270aSSushmita Susheelendra 685e1e9db2cSRob Clark if (!msm_obj->vaddr || WARN_ON(!is_vunmapable(msm_obj))) 686e1e9db2cSRob Clark return; 687e1e9db2cSRob Clark 688e1e9db2cSRob Clark vunmap(msm_obj->vaddr); 689e1e9db2cSRob Clark msm_obj->vaddr = NULL; 690e1e9db2cSRob Clark } 691e1e9db2cSRob Clark 6920e08270aSSushmita Susheelendra void msm_gem_vunmap(struct drm_gem_object *obj, enum msm_gem_lock subclass) 6930e08270aSSushmita Susheelendra { 6940e08270aSSushmita Susheelendra struct msm_gem_object *msm_obj = to_msm_bo(obj); 6950e08270aSSushmita Susheelendra 6960e08270aSSushmita Susheelendra mutex_lock_nested(&msm_obj->lock, subclass); 6970e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 6980e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 6990e08270aSSushmita Susheelendra } 7000e08270aSSushmita Susheelendra 701b6295f9aSRob Clark /* must be called before _move_to_active().. */ 702b6295f9aSRob Clark int msm_gem_sync_object(struct drm_gem_object *obj, 703b6295f9aSRob Clark struct msm_fence_context *fctx, bool exclusive) 704b6295f9aSRob Clark { 70552791eeeSChristian König struct dma_resv_list *fobj; 706f54d1867SChris Wilson struct dma_fence *fence; 707b6295f9aSRob Clark int i, ret; 708b6295f9aSRob Clark 70952791eeeSChristian König fobj = dma_resv_get_list(obj->resv); 710b6295f9aSRob Clark if (!fobj || (fobj->shared_count == 0)) { 71152791eeeSChristian König fence = dma_resv_get_excl(obj->resv); 712b6295f9aSRob Clark /* don't need to wait on our own fences, since ring is fifo */ 713b6295f9aSRob Clark if (fence && (fence->context != fctx->context)) { 714f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 715b6295f9aSRob Clark if (ret) 716b6295f9aSRob Clark return ret; 717b6295f9aSRob Clark } 718b6295f9aSRob Clark } 719b6295f9aSRob Clark 720b6295f9aSRob Clark if (!exclusive || !fobj) 721b6295f9aSRob Clark return 0; 722b6295f9aSRob Clark 723b6295f9aSRob Clark for (i = 0; i < fobj->shared_count; i++) { 724b6295f9aSRob Clark fence = rcu_dereference_protected(fobj->shared[i], 72552791eeeSChristian König dma_resv_held(obj->resv)); 726b6295f9aSRob Clark if (fence->context != fctx->context) { 727f54d1867SChris Wilson ret = dma_fence_wait(fence, true); 728b6295f9aSRob Clark if (ret) 729b6295f9aSRob Clark return ret; 730b6295f9aSRob Clark } 731b6295f9aSRob Clark } 732b6295f9aSRob Clark 733b6295f9aSRob Clark return 0; 734b6295f9aSRob Clark } 735b6295f9aSRob Clark 7367198e6b0SRob Clark void msm_gem_move_to_active(struct drm_gem_object *obj, 737f54d1867SChris Wilson struct msm_gpu *gpu, bool exclusive, struct dma_fence *fence) 7387198e6b0SRob Clark { 7397198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 7404cd33c48SRob Clark WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED); 7417198e6b0SRob Clark msm_obj->gpu = gpu; 742b6295f9aSRob Clark if (exclusive) 74352791eeeSChristian König dma_resv_add_excl_fence(obj->resv, fence); 744bf6811f3SRob Clark else 74552791eeeSChristian König dma_resv_add_shared_fence(obj->resv, fence); 7467198e6b0SRob Clark list_del_init(&msm_obj->mm_list); 7477198e6b0SRob Clark list_add_tail(&msm_obj->mm_list, &gpu->active_list); 7487198e6b0SRob Clark } 7497198e6b0SRob Clark 7507198e6b0SRob Clark void msm_gem_move_to_inactive(struct drm_gem_object *obj) 7517198e6b0SRob Clark { 7527198e6b0SRob Clark struct drm_device *dev = obj->dev; 7537198e6b0SRob Clark struct msm_drm_private *priv = dev->dev_private; 7547198e6b0SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 7557198e6b0SRob Clark 7567198e6b0SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 7577198e6b0SRob Clark 7587198e6b0SRob Clark msm_obj->gpu = NULL; 7597198e6b0SRob Clark list_del_init(&msm_obj->mm_list); 7607198e6b0SRob Clark list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 7617198e6b0SRob Clark } 7627198e6b0SRob Clark 763ba00c3f2SRob Clark int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout) 764ba00c3f2SRob Clark { 765b6295f9aSRob Clark bool write = !!(op & MSM_PREP_WRITE); 766f755e227SChris Wilson unsigned long remain = 767f755e227SChris Wilson op & MSM_PREP_NOSYNC ? 0 : timeout_to_jiffies(timeout); 768f755e227SChris Wilson long ret; 769b6295f9aSRob Clark 77052791eeeSChristian König ret = dma_resv_wait_timeout_rcu(obj->resv, write, 771f755e227SChris Wilson true, remain); 772f755e227SChris Wilson if (ret == 0) 773f755e227SChris Wilson return remain == 0 ? -EBUSY : -ETIMEDOUT; 774f755e227SChris Wilson else if (ret < 0) 775f755e227SChris Wilson return ret; 776ba00c3f2SRob Clark 7777198e6b0SRob Clark /* TODO cache maintenance */ 7787198e6b0SRob Clark 779b6295f9aSRob Clark return 0; 7807198e6b0SRob Clark } 7817198e6b0SRob Clark 7827198e6b0SRob Clark int msm_gem_cpu_fini(struct drm_gem_object *obj) 7837198e6b0SRob Clark { 7847198e6b0SRob Clark /* TODO cache maintenance */ 785c8afe684SRob Clark return 0; 786c8afe684SRob Clark } 787c8afe684SRob Clark 788c8afe684SRob Clark #ifdef CONFIG_DEBUG_FS 789f54d1867SChris Wilson static void describe_fence(struct dma_fence *fence, const char *type, 790b6295f9aSRob Clark struct seq_file *m) 791b6295f9aSRob Clark { 792f54d1867SChris Wilson if (!dma_fence_is_signaled(fence)) 793a3115621SDave Airlie seq_printf(m, "\t%9s: %s %s seq %llu\n", type, 794b6295f9aSRob Clark fence->ops->get_driver_name(fence), 795b6295f9aSRob Clark fence->ops->get_timeline_name(fence), 796b6295f9aSRob Clark fence->seqno); 797b6295f9aSRob Clark } 798b6295f9aSRob Clark 799c8afe684SRob Clark void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m) 800c8afe684SRob Clark { 801c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 80252791eeeSChristian König struct dma_resv *robj = obj->resv; 80352791eeeSChristian König struct dma_resv_list *fobj; 804f54d1867SChris Wilson struct dma_fence *fence; 8054b85f7f5SRob Clark struct msm_gem_vma *vma; 806c8afe684SRob Clark uint64_t off = drm_vma_node_start(&obj->vma_node); 8074cd33c48SRob Clark const char *madv; 808c8afe684SRob Clark 8090e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 810b6295f9aSRob Clark 8114cd33c48SRob Clark switch (msm_obj->madv) { 8124cd33c48SRob Clark case __MSM_MADV_PURGED: 8134cd33c48SRob Clark madv = " purged"; 8144cd33c48SRob Clark break; 8154cd33c48SRob Clark case MSM_MADV_DONTNEED: 8164cd33c48SRob Clark madv = " purgeable"; 8174cd33c48SRob Clark break; 8184cd33c48SRob Clark case MSM_MADV_WILLNEED: 8194cd33c48SRob Clark default: 8204cd33c48SRob Clark madv = ""; 8214cd33c48SRob Clark break; 8224cd33c48SRob Clark } 8234cd33c48SRob Clark 824575f0485SJordan Crouse seq_printf(m, "%08x: %c %2d (%2d) %08llx %p", 8257198e6b0SRob Clark msm_obj->flags, is_active(msm_obj) ? 'A' : 'I', 8262c935bc5SPeter Zijlstra obj->name, kref_read(&obj->refcount), 827667ce33eSRob Clark off, msm_obj->vaddr); 828667ce33eSRob Clark 8290815d774SJordan Crouse seq_printf(m, " %08zu %9s %-32s\n", obj->size, madv, msm_obj->name); 830667ce33eSRob Clark 831575f0485SJordan Crouse if (!list_empty(&msm_obj->vmas)) { 832575f0485SJordan Crouse 833575f0485SJordan Crouse seq_puts(m, " vmas:"); 834575f0485SJordan Crouse 835575f0485SJordan Crouse list_for_each_entry(vma, &msm_obj->vmas, list) 83690f94660SBrian Masney seq_printf(m, " [%s: %08llx,%s,inuse=%d]", 83790f94660SBrian Masney vma->aspace != NULL ? vma->aspace->name : NULL, 8387ad0e8cfSJordan Crouse vma->iova, vma->mapped ? "mapped" : "unmapped", 8397ad0e8cfSJordan Crouse vma->inuse); 840575f0485SJordan Crouse 841575f0485SJordan Crouse seq_puts(m, "\n"); 842575f0485SJordan Crouse } 843b6295f9aSRob Clark 844b6295f9aSRob Clark rcu_read_lock(); 845b6295f9aSRob Clark fobj = rcu_dereference(robj->fence); 846b6295f9aSRob Clark if (fobj) { 847b6295f9aSRob Clark unsigned int i, shared_count = fobj->shared_count; 848b6295f9aSRob Clark 849b6295f9aSRob Clark for (i = 0; i < shared_count; i++) { 850b6295f9aSRob Clark fence = rcu_dereference(fobj->shared[i]); 851b6295f9aSRob Clark describe_fence(fence, "Shared", m); 852b6295f9aSRob Clark } 853b6295f9aSRob Clark } 854b6295f9aSRob Clark 855b6295f9aSRob Clark fence = rcu_dereference(robj->fence_excl); 856b6295f9aSRob Clark if (fence) 857b6295f9aSRob Clark describe_fence(fence, "Exclusive", m); 858b6295f9aSRob Clark rcu_read_unlock(); 8590e08270aSSushmita Susheelendra 8600e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 861c8afe684SRob Clark } 862c8afe684SRob Clark 863c8afe684SRob Clark void msm_gem_describe_objects(struct list_head *list, struct seq_file *m) 864c8afe684SRob Clark { 865c8afe684SRob Clark struct msm_gem_object *msm_obj; 866c8afe684SRob Clark int count = 0; 867c8afe684SRob Clark size_t size = 0; 868c8afe684SRob Clark 8690815d774SJordan Crouse seq_puts(m, " flags id ref offset kaddr size madv name\n"); 870c8afe684SRob Clark list_for_each_entry(msm_obj, list, mm_list) { 871c8afe684SRob Clark struct drm_gem_object *obj = &msm_obj->base; 872575f0485SJordan Crouse seq_puts(m, " "); 873c8afe684SRob Clark msm_gem_describe(obj, m); 874c8afe684SRob Clark count++; 875c8afe684SRob Clark size += obj->size; 876c8afe684SRob Clark } 877c8afe684SRob Clark 878c8afe684SRob Clark seq_printf(m, "Total %d objects, %zu bytes\n", count, size); 879c8afe684SRob Clark } 880c8afe684SRob Clark #endif 881c8afe684SRob Clark 882d71b6bd8SRob Clark /* don't call directly! Use drm_gem_object_put() and friends */ 883c8afe684SRob Clark void msm_gem_free_object(struct drm_gem_object *obj) 884c8afe684SRob Clark { 885c8afe684SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj); 88648e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 88748e7f183SKristian H. Kristensen struct msm_drm_private *priv = dev->dev_private; 88848e7f183SKristian H. Kristensen 88948e7f183SKristian H. Kristensen if (llist_add(&msm_obj->freed, &priv->free_list)) 89048e7f183SKristian H. Kristensen queue_work(priv->wq, &priv->free_work); 89148e7f183SKristian H. Kristensen } 89248e7f183SKristian H. Kristensen 89348e7f183SKristian H. Kristensen static void free_object(struct msm_gem_object *msm_obj) 89448e7f183SKristian H. Kristensen { 89548e7f183SKristian H. Kristensen struct drm_gem_object *obj = &msm_obj->base; 89648e7f183SKristian H. Kristensen struct drm_device *dev = obj->dev; 897c8afe684SRob Clark 898c8afe684SRob Clark WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 899c8afe684SRob Clark 9007198e6b0SRob Clark /* object should not be on active list: */ 9017198e6b0SRob Clark WARN_ON(is_active(msm_obj)); 9027198e6b0SRob Clark 903c8afe684SRob Clark list_del(&msm_obj->mm_list); 904c8afe684SRob Clark 9050e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 9060e08270aSSushmita Susheelendra 9074fe5f65eSRob Clark put_iova(obj); 908c8afe684SRob Clark 90905b84911SRob Clark if (obj->import_attach) { 91005b84911SRob Clark if (msm_obj->vaddr) 91105b84911SRob Clark dma_buf_vunmap(obj->import_attach->dmabuf, msm_obj->vaddr); 91205b84911SRob Clark 91305b84911SRob Clark /* Don't drop the pages for imported dmabuf, as they are not 91405b84911SRob Clark * ours, just free the array we allocated: 91505b84911SRob Clark */ 91605b84911SRob Clark if (msm_obj->pages) 9172098105eSMichal Hocko kvfree(msm_obj->pages); 91805b84911SRob Clark 919f28730c8Sjilai wang drm_prime_gem_destroy(obj, msm_obj->sgt); 92005b84911SRob Clark } else { 9210e08270aSSushmita Susheelendra msm_gem_vunmap_locked(obj); 922c8afe684SRob Clark put_pages(obj); 92305b84911SRob Clark } 924c8afe684SRob Clark 925c8afe684SRob Clark drm_gem_object_release(obj); 926c8afe684SRob Clark 9270e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 928c8afe684SRob Clark kfree(msm_obj); 929c8afe684SRob Clark } 930c8afe684SRob Clark 93148e7f183SKristian H. Kristensen void msm_gem_free_work(struct work_struct *work) 93248e7f183SKristian H. Kristensen { 93348e7f183SKristian H. Kristensen struct msm_drm_private *priv = 93448e7f183SKristian H. Kristensen container_of(work, struct msm_drm_private, free_work); 93548e7f183SKristian H. Kristensen struct drm_device *dev = priv->dev; 93648e7f183SKristian H. Kristensen struct llist_node *freed; 93748e7f183SKristian H. Kristensen struct msm_gem_object *msm_obj, *next; 93848e7f183SKristian H. Kristensen 93948e7f183SKristian H. Kristensen while ((freed = llist_del_all(&priv->free_list))) { 94048e7f183SKristian H. Kristensen 94148e7f183SKristian H. Kristensen mutex_lock(&dev->struct_mutex); 94248e7f183SKristian H. Kristensen 94348e7f183SKristian H. Kristensen llist_for_each_entry_safe(msm_obj, next, 94448e7f183SKristian H. Kristensen freed, freed) 94548e7f183SKristian H. Kristensen free_object(msm_obj); 94648e7f183SKristian H. Kristensen 94748e7f183SKristian H. Kristensen mutex_unlock(&dev->struct_mutex); 94848e7f183SKristian H. Kristensen 94948e7f183SKristian H. Kristensen if (need_resched()) 95048e7f183SKristian H. Kristensen break; 95148e7f183SKristian H. Kristensen } 95248e7f183SKristian H. Kristensen } 95348e7f183SKristian H. Kristensen 954c8afe684SRob Clark /* convenience method to construct a GEM buffer object, and userspace handle */ 955c8afe684SRob Clark int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file, 9560815d774SJordan Crouse uint32_t size, uint32_t flags, uint32_t *handle, 9570815d774SJordan Crouse char *name) 958c8afe684SRob Clark { 959c8afe684SRob Clark struct drm_gem_object *obj; 960c8afe684SRob Clark int ret; 961c8afe684SRob Clark 962c8afe684SRob Clark obj = msm_gem_new(dev, size, flags); 963c8afe684SRob Clark 964c8afe684SRob Clark if (IS_ERR(obj)) 965c8afe684SRob Clark return PTR_ERR(obj); 966c8afe684SRob Clark 9670815d774SJordan Crouse if (name) 9680815d774SJordan Crouse msm_gem_object_set_name(obj, "%s", name); 9690815d774SJordan Crouse 970c8afe684SRob Clark ret = drm_gem_handle_create(file, obj, handle); 971c8afe684SRob Clark 972c8afe684SRob Clark /* drop reference from allocate - handle holds it now */ 973dc9a9b32SSteve Kowalik drm_gem_object_put_unlocked(obj); 974c8afe684SRob Clark 975c8afe684SRob Clark return ret; 976c8afe684SRob Clark } 977c8afe684SRob Clark 97805b84911SRob Clark static int msm_gem_new_impl(struct drm_device *dev, 97905b84911SRob Clark uint32_t size, uint32_t flags, 9800e08270aSSushmita Susheelendra struct drm_gem_object **obj, 9810e08270aSSushmita Susheelendra bool struct_mutex_locked) 982c8afe684SRob Clark { 983c8afe684SRob Clark struct msm_drm_private *priv = dev->dev_private; 984c8afe684SRob Clark struct msm_gem_object *msm_obj; 985c8afe684SRob Clark 986c8afe684SRob Clark switch (flags & MSM_BO_CACHE_MASK) { 987c8afe684SRob Clark case MSM_BO_UNCACHED: 988c8afe684SRob Clark case MSM_BO_CACHED: 989c8afe684SRob Clark case MSM_BO_WC: 990c8afe684SRob Clark break; 991c8afe684SRob Clark default: 9926a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "invalid cache flag: %x\n", 993c8afe684SRob Clark (flags & MSM_BO_CACHE_MASK)); 99405b84911SRob Clark return -EINVAL; 995c8afe684SRob Clark } 996c8afe684SRob Clark 997667ce33eSRob Clark msm_obj = kzalloc(sizeof(*msm_obj), GFP_KERNEL); 99805b84911SRob Clark if (!msm_obj) 99905b84911SRob Clark return -ENOMEM; 1000c8afe684SRob Clark 10010e08270aSSushmita Susheelendra mutex_init(&msm_obj->lock); 10020e08270aSSushmita Susheelendra 1003c8afe684SRob Clark msm_obj->flags = flags; 10044cd33c48SRob Clark msm_obj->madv = MSM_MADV_WILLNEED; 1005c8afe684SRob Clark 10067198e6b0SRob Clark INIT_LIST_HEAD(&msm_obj->submit_entry); 10074b85f7f5SRob Clark INIT_LIST_HEAD(&msm_obj->vmas); 10084b85f7f5SRob Clark 10090e08270aSSushmita Susheelendra if (struct_mutex_locked) { 10100e08270aSSushmita Susheelendra WARN_ON(!mutex_is_locked(&dev->struct_mutex)); 1011c8afe684SRob Clark list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 10120e08270aSSushmita Susheelendra } else { 10130e08270aSSushmita Susheelendra mutex_lock(&dev->struct_mutex); 10140e08270aSSushmita Susheelendra list_add_tail(&msm_obj->mm_list, &priv->inactive_list); 10150e08270aSSushmita Susheelendra mutex_unlock(&dev->struct_mutex); 10160e08270aSSushmita Susheelendra } 1017c8afe684SRob Clark 101805b84911SRob Clark *obj = &msm_obj->base; 101905b84911SRob Clark 102005b84911SRob Clark return 0; 102105b84911SRob Clark } 102205b84911SRob Clark 10230e08270aSSushmita Susheelendra static struct drm_gem_object *_msm_gem_new(struct drm_device *dev, 10240e08270aSSushmita Susheelendra uint32_t size, uint32_t flags, bool struct_mutex_locked) 102505b84911SRob Clark { 1026f4839bd5SRob Clark struct msm_drm_private *priv = dev->dev_private; 1027871d812aSRob Clark struct drm_gem_object *obj = NULL; 1028f4839bd5SRob Clark bool use_vram = false; 102905b84911SRob Clark int ret; 103005b84911SRob Clark 103105b84911SRob Clark size = PAGE_ALIGN(size); 103205b84911SRob Clark 1033c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) 1034f4839bd5SRob Clark use_vram = true; 103586f46f25SJonathan Marek else if ((flags & (MSM_BO_STOLEN | MSM_BO_SCANOUT)) && priv->vram.size) 1036f4839bd5SRob Clark use_vram = true; 1037f4839bd5SRob Clark 1038f4839bd5SRob Clark if (WARN_ON(use_vram && !priv->vram.size)) 1039f4839bd5SRob Clark return ERR_PTR(-EINVAL); 1040f4839bd5SRob Clark 10411a5dff5dSJordan Crouse /* Disallow zero sized objects as they make the underlying 10421a5dff5dSJordan Crouse * infrastructure grumpy 10431a5dff5dSJordan Crouse */ 10441a5dff5dSJordan Crouse if (size == 0) 10451a5dff5dSJordan Crouse return ERR_PTR(-EINVAL); 10461a5dff5dSJordan Crouse 10475ebeb02cSDaniel Vetter ret = msm_gem_new_impl(dev, size, flags, &obj, struct_mutex_locked); 104805b84911SRob Clark if (ret) 104905b84911SRob Clark goto fail; 105005b84911SRob Clark 1051f4839bd5SRob Clark if (use_vram) { 10524b85f7f5SRob Clark struct msm_gem_vma *vma; 1053f4839bd5SRob Clark struct page **pages; 1054b3949a9aSHans Verkuil struct msm_gem_object *msm_obj = to_msm_bo(obj); 1055b3949a9aSHans Verkuil 1056b3949a9aSHans Verkuil mutex_lock(&msm_obj->lock); 1057f4839bd5SRob Clark 10584b85f7f5SRob Clark vma = add_vma(obj, NULL); 1059b3949a9aSHans Verkuil mutex_unlock(&msm_obj->lock); 10604b85f7f5SRob Clark if (IS_ERR(vma)) { 10614b85f7f5SRob Clark ret = PTR_ERR(vma); 10624b85f7f5SRob Clark goto fail; 10634b85f7f5SRob Clark } 10644b85f7f5SRob Clark 10654b85f7f5SRob Clark to_msm_bo(obj)->vram_node = &vma->node; 10664b85f7f5SRob Clark 1067f4839bd5SRob Clark drm_gem_private_object_init(dev, obj, size); 1068f4839bd5SRob Clark 1069f4839bd5SRob Clark pages = get_pages(obj); 1070f4839bd5SRob Clark if (IS_ERR(pages)) { 1071f4839bd5SRob Clark ret = PTR_ERR(pages); 1072f4839bd5SRob Clark goto fail; 1073f4839bd5SRob Clark } 10744b85f7f5SRob Clark 10754b85f7f5SRob Clark vma->iova = physaddr(obj); 1076f4839bd5SRob Clark } else { 107705b84911SRob Clark ret = drm_gem_object_init(dev, obj, size); 107805b84911SRob Clark if (ret) 107905b84911SRob Clark goto fail; 10800abdba47SLucas Stach /* 10810abdba47SLucas Stach * Our buffers are kept pinned, so allocating them from the 10820abdba47SLucas Stach * MOVABLE zone is a really bad idea, and conflicts with CMA. 10830abdba47SLucas Stach * See comments above new_inode() why this is required _and_ 10840abdba47SLucas Stach * expected if you're going to pin these pages. 10850abdba47SLucas Stach */ 10860abdba47SLucas Stach mapping_set_gfp_mask(obj->filp->f_mapping, GFP_HIGHUSER); 1087871d812aSRob Clark } 108805b84911SRob Clark 108905b84911SRob Clark return obj; 109005b84911SRob Clark 109105b84911SRob Clark fail: 1092dc9a9b32SSteve Kowalik drm_gem_object_put_unlocked(obj); 109305b84911SRob Clark return ERR_PTR(ret); 109405b84911SRob Clark } 109505b84911SRob Clark 10960e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev, 10970e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 10980e08270aSSushmita Susheelendra { 10990e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, true); 11000e08270aSSushmita Susheelendra } 11010e08270aSSushmita Susheelendra 11020e08270aSSushmita Susheelendra struct drm_gem_object *msm_gem_new(struct drm_device *dev, 11030e08270aSSushmita Susheelendra uint32_t size, uint32_t flags) 11040e08270aSSushmita Susheelendra { 11050e08270aSSushmita Susheelendra return _msm_gem_new(dev, size, flags, false); 11060e08270aSSushmita Susheelendra } 11070e08270aSSushmita Susheelendra 110805b84911SRob Clark struct drm_gem_object *msm_gem_import(struct drm_device *dev, 110979f0e202SRob Clark struct dma_buf *dmabuf, struct sg_table *sgt) 111005b84911SRob Clark { 111105b84911SRob Clark struct msm_gem_object *msm_obj; 111205b84911SRob Clark struct drm_gem_object *obj; 111379f0e202SRob Clark uint32_t size; 111405b84911SRob Clark int ret, npages; 111505b84911SRob Clark 1116871d812aSRob Clark /* if we don't have IOMMU, don't bother pretending we can import: */ 1117c2052a4eSJonathan Marek if (!msm_use_mmu(dev)) { 11186a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "cannot import without IOMMU\n"); 1119871d812aSRob Clark return ERR_PTR(-EINVAL); 1120871d812aSRob Clark } 1121871d812aSRob Clark 112279f0e202SRob Clark size = PAGE_ALIGN(dmabuf->size); 112305b84911SRob Clark 11245ebeb02cSDaniel Vetter ret = msm_gem_new_impl(dev, size, MSM_BO_WC, &obj, false); 112505b84911SRob Clark if (ret) 112605b84911SRob Clark goto fail; 112705b84911SRob Clark 112805b84911SRob Clark drm_gem_private_object_init(dev, obj, size); 112905b84911SRob Clark 113005b84911SRob Clark npages = size / PAGE_SIZE; 113105b84911SRob Clark 113205b84911SRob Clark msm_obj = to_msm_bo(obj); 11330e08270aSSushmita Susheelendra mutex_lock(&msm_obj->lock); 113405b84911SRob Clark msm_obj->sgt = sgt; 11352098105eSMichal Hocko msm_obj->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); 113605b84911SRob Clark if (!msm_obj->pages) { 11370e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 113805b84911SRob Clark ret = -ENOMEM; 113905b84911SRob Clark goto fail; 114005b84911SRob Clark } 114105b84911SRob Clark 114205b84911SRob Clark ret = drm_prime_sg_to_page_addr_arrays(sgt, msm_obj->pages, NULL, npages); 11430e08270aSSushmita Susheelendra if (ret) { 11440e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 114505b84911SRob Clark goto fail; 11460e08270aSSushmita Susheelendra } 114705b84911SRob Clark 11480e08270aSSushmita Susheelendra mutex_unlock(&msm_obj->lock); 1149c8afe684SRob Clark return obj; 1150c8afe684SRob Clark 1151c8afe684SRob Clark fail: 1152dc9a9b32SSteve Kowalik drm_gem_object_put_unlocked(obj); 1153c8afe684SRob Clark return ERR_PTR(ret); 1154c8afe684SRob Clark } 11558223286dSJordan Crouse 11568223286dSJordan Crouse static void *_msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 11578223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 11588223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova, bool locked) 11598223286dSJordan Crouse { 11608223286dSJordan Crouse void *vaddr; 11618223286dSJordan Crouse struct drm_gem_object *obj = _msm_gem_new(dev, size, flags, locked); 11628223286dSJordan Crouse int ret; 11638223286dSJordan Crouse 11648223286dSJordan Crouse if (IS_ERR(obj)) 11658223286dSJordan Crouse return ERR_CAST(obj); 11668223286dSJordan Crouse 11678223286dSJordan Crouse if (iova) { 11689fe041f6SJordan Crouse ret = msm_gem_get_and_pin_iova(obj, aspace, iova); 116993f7abf1SJordan Crouse if (ret) 117093f7abf1SJordan Crouse goto err; 11718223286dSJordan Crouse } 11728223286dSJordan Crouse 11738223286dSJordan Crouse vaddr = msm_gem_get_vaddr(obj); 1174c9811d0fSWei Yongjun if (IS_ERR(vaddr)) { 11757ad0e8cfSJordan Crouse msm_gem_unpin_iova(obj, aspace); 117693f7abf1SJordan Crouse ret = PTR_ERR(vaddr); 117793f7abf1SJordan Crouse goto err; 11788223286dSJordan Crouse } 11798223286dSJordan Crouse 11808223286dSJordan Crouse if (bo) 11818223286dSJordan Crouse *bo = obj; 11828223286dSJordan Crouse 11838223286dSJordan Crouse return vaddr; 118493f7abf1SJordan Crouse err: 118593f7abf1SJordan Crouse if (locked) 118693f7abf1SJordan Crouse drm_gem_object_put(obj); 118793f7abf1SJordan Crouse else 118893f7abf1SJordan Crouse drm_gem_object_put_unlocked(obj); 118993f7abf1SJordan Crouse 119093f7abf1SJordan Crouse return ERR_PTR(ret); 119193f7abf1SJordan Crouse 11928223286dSJordan Crouse } 11938223286dSJordan Crouse 11948223286dSJordan Crouse void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 11958223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 11968223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 11978223286dSJordan Crouse { 11988223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, false); 11998223286dSJordan Crouse } 12008223286dSJordan Crouse 12018223286dSJordan Crouse void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size, 12028223286dSJordan Crouse uint32_t flags, struct msm_gem_address_space *aspace, 12038223286dSJordan Crouse struct drm_gem_object **bo, uint64_t *iova) 12048223286dSJordan Crouse { 12058223286dSJordan Crouse return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, true); 12068223286dSJordan Crouse } 12071e29dff0SJordan Crouse 12081e29dff0SJordan Crouse void msm_gem_kernel_put(struct drm_gem_object *bo, 12091e29dff0SJordan Crouse struct msm_gem_address_space *aspace, bool locked) 12101e29dff0SJordan Crouse { 12111e29dff0SJordan Crouse if (IS_ERR_OR_NULL(bo)) 12121e29dff0SJordan Crouse return; 12131e29dff0SJordan Crouse 12141e29dff0SJordan Crouse msm_gem_put_vaddr(bo); 12157ad0e8cfSJordan Crouse msm_gem_unpin_iova(bo, aspace); 12161e29dff0SJordan Crouse 12171e29dff0SJordan Crouse if (locked) 12181e29dff0SJordan Crouse drm_gem_object_put(bo); 12191e29dff0SJordan Crouse else 12201e29dff0SJordan Crouse drm_gem_object_put_unlocked(bo); 12211e29dff0SJordan Crouse } 12220815d774SJordan Crouse 12230815d774SJordan Crouse void msm_gem_object_set_name(struct drm_gem_object *bo, const char *fmt, ...) 12240815d774SJordan Crouse { 12250815d774SJordan Crouse struct msm_gem_object *msm_obj = to_msm_bo(bo); 12260815d774SJordan Crouse va_list ap; 12270815d774SJordan Crouse 12280815d774SJordan Crouse if (!fmt) 12290815d774SJordan Crouse return; 12300815d774SJordan Crouse 12310815d774SJordan Crouse va_start(ap, fmt); 12320815d774SJordan Crouse vsnprintf(msm_obj->name, sizeof(msm_obj->name), fmt, ap); 12330815d774SJordan Crouse va_end(ap); 12340815d774SJordan Crouse } 1235