| /* |
| * Copyright 2008 Advanced Micro Devices, Inc. |
| * Copyright 2008 Red Hat Inc. |
| * Copyright 2009 Jerome Glisse. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: Dave Airlie |
| * Alex Deucher |
| * Jerome Glisse |
| */ |
| #include <linux/ktime.h> |
| #include <linux/pagemap.h> |
| #include <drm/drmP.h> |
| #include <drm/amdgpu_drm.h> |
| #include "amdgpu.h" |
| |
| void amdgpu_gem_object_free(struct drm_gem_object *gobj) |
| { |
| struct amdgpu_bo *robj = gem_to_amdgpu_bo(gobj); |
| |
| if (robj) { |
| if (robj->gem_base.import_attach) |
| drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg); |
| amdgpu_mn_unregister(robj); |
| amdgpu_bo_unref(&robj); |
| } |
| } |
| |
| int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size, |
| int alignment, u32 initial_domain, |
| u64 flags, bool kernel, |
| struct drm_gem_object **obj) |
| { |
| struct amdgpu_bo *robj; |
| int r; |
| |
| *obj = NULL; |
| /* At least align on page size */ |
| if (alignment < PAGE_SIZE) { |
| alignment = PAGE_SIZE; |
| } |
| |
| retry: |
| r = amdgpu_bo_create(adev, size, alignment, kernel, initial_domain, |
| flags, NULL, NULL, 0, &robj); |
| if (r) { |
| if (r != -ERESTARTSYS) { |
| if (initial_domain == AMDGPU_GEM_DOMAIN_VRAM) { |
| initial_domain |= AMDGPU_GEM_DOMAIN_GTT; |
| goto retry; |
| } |
| DRM_ERROR("Failed to allocate GEM object (%ld, %d, %u, %d)\n", |
| size, initial_domain, alignment, r); |
| } |
| return r; |
| } |
| *obj = &robj->gem_base; |
| |
| return 0; |
| } |
| |
| void amdgpu_gem_force_release(struct amdgpu_device *adev) |
| { |
| struct drm_device *ddev = adev->ddev; |
| struct drm_file *file; |
| |
| mutex_lock(&ddev->filelist_mutex); |
| |
| list_for_each_entry(file, &ddev->filelist, lhead) { |
| struct drm_gem_object *gobj; |
| int handle; |
| |
| WARN_ONCE(1, "Still active user space clients!\n"); |
| spin_lock(&file->table_lock); |
| idr_for_each_entry(&file->object_idr, gobj, handle) { |
| WARN_ONCE(1, "And also active allocations!\n"); |
| drm_gem_object_put_unlocked(gobj); |
| } |
| idr_destroy(&file->object_idr); |
| spin_unlock(&file->table_lock); |
| } |
| |
| mutex_unlock(&ddev->filelist_mutex); |
| } |
| |
| /* |
| * Call from drm_gem_handle_create which appear in both new and open ioctl |
| * case. |
| */ |
| int amdgpu_gem_object_open(struct drm_gem_object *obj, |
| struct drm_file *file_priv) |
| { |
| struct amdgpu_bo *abo = gem_to_amdgpu_bo(obj); |
| struct amdgpu_device *adev = amdgpu_ttm_adev(abo->tbo.bdev); |
| struct amdgpu_fpriv *fpriv = file_priv->driver_priv; |
| struct amdgpu_vm *vm = &fpriv->vm; |
| struct amdgpu_bo_va *bo_va; |
| int r; |
| r = amdgpu_bo_reserve(abo, false); |
| if (r) |
| return r; |
| |
| bo_va = amdgpu_vm_bo_find(vm, abo); |
| if (!bo_va) { |
| bo_va = amdgpu_vm_bo_add(adev, vm, abo); |
| } else { |
| ++bo_va->ref_count; |
| } |
| amdgpu_bo_unreserve(abo); |
| return 0; |
| } |
| |
| static int amdgpu_gem_vm_check(void *param, struct amdgpu_bo *bo) |
| { |
| /* if anything is swapped out don't swap it in here, |
| just abort and wait for the next CS */ |
| if (!amdgpu_bo_gpu_accessible(bo)) |
| return -ERESTARTSYS; |
| |
| if (bo->shadow && !amdgpu_bo_gpu_accessible(bo->shadow)) |
| return -ERESTARTSYS; |
| |
| return 0; |
| } |
| |
| static bool amdgpu_gem_vm_ready(struct amdgpu_device *adev, |
| struct amdgpu_vm *vm, |
| struct list_head *list) |
| { |
| struct ttm_validate_buffer *entry; |
| |
| list_for_each_entry(entry, list, head) { |
| struct amdgpu_bo *bo = |
| container_of(entry->bo, struct amdgpu_bo, tbo); |
| if (amdgpu_gem_vm_check(NULL, bo)) |
| return false; |
| } |
| |
| return !amdgpu_vm_validate_pt_bos(adev, vm, amdgpu_gem_vm_check, NULL); |
| } |
| |
| void amdgpu_gem_object_close(struct drm_gem_object *obj, |
| struct drm_file *file_priv) |
| { |
| struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj); |
| struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); |
| struct amdgpu_fpriv *fpriv = file_priv->driver_priv; |
| struct amdgpu_vm *vm = &fpriv->vm; |
| |
| struct amdgpu_bo_list_entry vm_pd; |
| struct list_head list; |
| struct ttm_validate_buffer tv; |
| struct ww_acquire_ctx ticket; |
| struct amdgpu_bo_va *bo_va; |
| int r; |
| |
| INIT_LIST_HEAD(&list); |
| |
| tv.bo = &bo->tbo; |
| tv.shared = true; |
| list_add(&tv.head, &list); |
| |
| amdgpu_vm_get_pd_bo(vm, &list, &vm_pd); |
| |
| r = ttm_eu_reserve_buffers(&ticket, &list, false, NULL); |
| if (r) { |
| dev_err(adev->dev, "leaking bo va because " |
| "we fail to reserve bo (%d)\n", r); |
| return; |
| } |
| bo_va = amdgpu_vm_bo_find(vm, bo); |
| if (bo_va && --bo_va->ref_count == 0) { |
| amdgpu_vm_bo_rmv(adev, bo_va); |
| |
| if (amdgpu_gem_vm_ready(adev, vm, &list)) { |
| struct dma_fence *fence = NULL; |
| |
| r = amdgpu_vm_clear_freed(adev, vm, &fence); |
| if (unlikely(r)) { |
| dev_err(adev->dev, "failed to clear page " |
| "tables on GEM object close (%d)\n", r); |
| } |
| |
| if (fence) { |
| amdgpu_bo_fence(bo, fence, true); |
| dma_fence_put(fence); |
| } |
| } |
| } |
| ttm_eu_backoff_reservation(&ticket, &list); |
| } |
| |
| /* |
| * GEM ioctls. |
| */ |
| int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *filp) |
| { |
| struct amdgpu_device *adev = dev->dev_private; |
| union drm_amdgpu_gem_create *args = data; |
| uint64_t size = args->in.bo_size; |
| struct drm_gem_object *gobj; |
| uint32_t handle; |
| bool kernel = false; |
| int r; |
| |
| /* reject invalid gem flags */ |
| if (args->in.domain_flags & ~(AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | |
| AMDGPU_GEM_CREATE_NO_CPU_ACCESS | |
| AMDGPU_GEM_CREATE_CPU_GTT_USWC | |
| AMDGPU_GEM_CREATE_VRAM_CLEARED)) |
| return -EINVAL; |
| |
| /* reject invalid gem domains */ |
| if (args->in.domains & ~(AMDGPU_GEM_DOMAIN_CPU | |
| AMDGPU_GEM_DOMAIN_GTT | |
| AMDGPU_GEM_DOMAIN_VRAM | |
| AMDGPU_GEM_DOMAIN_GDS | |
| AMDGPU_GEM_DOMAIN_GWS | |
| AMDGPU_GEM_DOMAIN_OA)) |
| return -EINVAL; |
| |
| /* create a gem object to contain this object in */ |
| if (args->in.domains & (AMDGPU_GEM_DOMAIN_GDS | |
| AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) { |
| kernel = true; |
| if (args->in.domains == AMDGPU_GEM_DOMAIN_GDS) |
| size = size << AMDGPU_GDS_SHIFT; |
| else if (args->in.domains == AMDGPU_GEM_DOMAIN_GWS) |
| size = size << AMDGPU_GWS_SHIFT; |
| else if (args->in.domains == AMDGPU_GEM_DOMAIN_OA) |
| size = size << AMDGPU_OA_SHIFT; |
| else |
| return -EINVAL; |
| } |
| size = roundup(size, PAGE_SIZE); |
| |
| r = amdgpu_gem_object_create(adev, size, args->in.alignment, |
| (u32)(0xffffffff & args->in.domains), |
| args->in.domain_flags, |
| kernel, &gobj); |
| if (r) |
| return r; |
| |
| r = drm_gem_handle_create(filp, gobj, &handle); |
| /* drop reference from allocate - handle holds it now */ |
| drm_gem_object_put_unlocked(gobj); |
| if (r) |
| return r; |
| |
| memset(args, 0, sizeof(*args)); |
| args->out.handle = handle; |
| return 0; |
| } |
| |
| int amdgpu_gem_userptr_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *filp) |
| { |
| struct amdgpu_device *adev = dev->dev_private; |
| struct drm_amdgpu_gem_userptr *args = data; |
| struct drm_gem_object *gobj; |
| struct amdgpu_bo *bo; |
| uint32_t handle; |
| int r; |
| |
| if (offset_in_page(args->addr | args->size)) |
| return -EINVAL; |
| |
| /* reject unknown flag values */ |
| if (args->flags & ~(AMDGPU_GEM_USERPTR_READONLY | |
| AMDGPU_GEM_USERPTR_ANONONLY | AMDGPU_GEM_USERPTR_VALIDATE | |
| AMDGPU_GEM_USERPTR_REGISTER)) |
| return -EINVAL; |
| |
| if (!(args->flags & AMDGPU_GEM_USERPTR_READONLY) && |
| !(args->flags & AMDGPU_GEM_USERPTR_REGISTER)) { |
| |
| /* if we want to write to it we must install a MMU notifier */ |
| return -EACCES; |
| } |
| |
| /* create a gem object to contain this object in */ |
| r = amdgpu_gem_object_create(adev, args->size, 0, |
| AMDGPU_GEM_DOMAIN_CPU, 0, |
| 0, &gobj); |
| if (r) |
| return r; |
| |
| bo = gem_to_amdgpu_bo(gobj); |
| bo->preferred_domains = AMDGPU_GEM_DOMAIN_GTT; |
| bo->allowed_domains = AMDGPU_GEM_DOMAIN_GTT; |
| r = amdgpu_ttm_tt_set_userptr(bo->tbo.ttm, args->addr, args->flags); |
| if (r) |
| goto release_object; |
| |
| if (args->flags & AMDGPU_GEM_USERPTR_REGISTER) { |
| r = amdgpu_mn_register(bo, args->addr); |
| if (r) |
| goto release_object; |
| } |
| |
| if (args->flags & AMDGPU_GEM_USERPTR_VALIDATE) { |
| down_read(¤t->mm->mmap_sem); |
| |
| r = amdgpu_ttm_tt_get_user_pages(bo->tbo.ttm, |
| bo->tbo.ttm->pages); |
| if (r) |
| goto unlock_mmap_sem; |
| |
| r = amdgpu_bo_reserve(bo, true); |
| if (r) |
| goto free_pages; |
| |
| amdgpu_ttm_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_GTT); |
| r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false); |
| amdgpu_bo_unreserve(bo); |
| if (r) |
| goto free_pages; |
| |
| up_read(¤t->mm->mmap_sem); |
| } |
| |
| r = drm_gem_handle_create(filp, gobj, &handle); |
| /* drop reference from allocate - handle holds it now */ |
| drm_gem_object_put_unlocked(gobj); |
| if (r) |
| return r; |
| |
| args->handle = handle; |
| return 0; |
| |
| free_pages: |
| release_pages(bo->tbo.ttm->pages, bo->tbo.ttm->num_pages); |
| |
| unlock_mmap_sem: |
| up_read(¤t->mm->mmap_sem); |
| |
| release_object: |
| drm_gem_object_put_unlocked(gobj); |
| |
| return r; |
| } |
| |
| int amdgpu_mode_dumb_mmap(struct drm_file *filp, |
| struct drm_device *dev, |
| uint32_t handle, uint64_t *offset_p) |
| { |
| struct drm_gem_object *gobj; |
| struct amdgpu_bo *robj; |
| |
| gobj = drm_gem_object_lookup(filp, handle); |
| if (gobj == NULL) { |
| return -ENOENT; |
| } |
| robj = gem_to_amdgpu_bo(gobj); |
| if (amdgpu_ttm_tt_get_usermm(robj->tbo.ttm) || |
| (robj->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)) { |
| drm_gem_object_put_unlocked(gobj); |
| return -EPERM; |
| } |
| *offset_p = amdgpu_bo_mmap_offset(robj); |
| drm_gem_object_put_unlocked(gobj); |
| return 0; |
| } |
| |
| int amdgpu_gem_mmap_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *filp) |
| { |
| union drm_amdgpu_gem_mmap *args = data; |
| uint32_t handle = args->in.handle; |
| memset(args, 0, sizeof(*args)); |
| return amdgpu_mode_dumb_mmap(filp, dev, handle, &args->out.addr_ptr); |
| } |
| |
| /** |
| * amdgpu_gem_timeout - calculate jiffies timeout from absolute value |
| * |
| * @timeout_ns: timeout in ns |
| * |
| * Calculate the timeout in jiffies from an absolute timeout in ns. |
| */ |
| unsigned long amdgpu_gem_timeout(uint64_t timeout_ns) |
| { |
| unsigned long timeout_jiffies; |
| ktime_t timeout; |
| |
| /* clamp timeout if it's to large */ |
| if (((int64_t)timeout_ns) < 0) |
| return MAX_SCHEDULE_TIMEOUT; |
| |
| timeout = ktime_sub(ns_to_ktime(timeout_ns), ktime_get()); |
| if (ktime_to_ns(timeout) < 0) |
| return 0; |
| |
| timeout_jiffies = nsecs_to_jiffies(ktime_to_ns(timeout)); |
| /* clamp timeout to avoid unsigned-> signed overflow */ |
| if (timeout_jiffies > MAX_SCHEDULE_TIMEOUT ) |
| return MAX_SCHEDULE_TIMEOUT - 1; |
| |
| return timeout_jiffies; |
| } |
| |
| int amdgpu_gem_wait_idle_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *filp) |
| { |
| union drm_amdgpu_gem_wait_idle *args = data; |
| struct drm_gem_object *gobj; |
| struct amdgpu_bo *robj; |
| uint32_t handle = args->in.handle; |
| unsigned long timeout = amdgpu_gem_timeout(args->in.timeout); |
| int r = 0; |
| long ret; |
| |
| gobj = drm_gem_object_lookup(filp, handle); |
| if (gobj == NULL) { |
| return -ENOENT; |
| } |
| robj = gem_to_amdgpu_bo(gobj); |
| ret = reservation_object_wait_timeout_rcu(robj->tbo.resv, true, true, |
| timeout); |
| |
| /* ret == 0 means not signaled, |
| * ret > 0 means signaled |
| * ret < 0 means interrupted before timeout |
| */ |
| if (ret >= 0) { |
| memset(args, 0, sizeof(*args)); |
| args->out.status = (ret == 0); |
| } else |
| r = ret; |
| |
| drm_gem_object_put_unlocked(gobj); |
| return r; |
| } |
| |
| int amdgpu_gem_metadata_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *filp) |
| { |
| struct drm_amdgpu_gem_metadata *args = data; |
| struct drm_gem_object *gobj; |
| struct amdgpu_bo *robj; |
| int r = -1; |
| |
| DRM_DEBUG("%d \n", args->handle); |
| gobj = drm_gem_object_lookup(filp, args->handle); |
| if (gobj == NULL) |
| return -ENOENT; |
| robj = gem_to_amdgpu_bo(gobj); |
| |
| r = amdgpu_bo_reserve(robj, false); |
| if (unlikely(r != 0)) |
| goto out; |
| |
| if (args->op == AMDGPU_GEM_METADATA_OP_GET_METADATA) { |
| amdgpu_bo_get_tiling_flags(robj, &args->data.tiling_info); |
| r = amdgpu_bo_get_metadata(robj, args->data.data, |
| sizeof(args->data.data), |
| &args->data.data_size_bytes, |
| &args->data.flags); |
| } else if (args->op == AMDGPU_GEM_METADATA_OP_SET_METADATA) { |
| if (args->data.data_size_bytes > sizeof(args->data.data)) { |
| r = -EINVAL; |
| goto unreserve; |
| } |
| r = amdgpu_bo_set_tiling_flags(robj, args->data.tiling_info); |
| if (!r) |
| r = amdgpu_bo_set_metadata(robj, args->data.data, |
| args->data.data_size_bytes, |
| args->data.flags); |
| } |
| |
| unreserve: |
| amdgpu_bo_unreserve(robj); |
| out: |
| drm_gem_object_put_unlocked(gobj); |
| return r; |
| } |
| |
| /** |
| * amdgpu_gem_va_update_vm -update the bo_va in its VM |
| * |
| * @adev: amdgpu_device pointer |
| * @vm: vm to update |
| * @bo_va: bo_va to update |
| * @list: validation list |
| * @operation: map, unmap or clear |
| * |
| * Update the bo_va directly after setting its address. Errors are not |
| * vital here, so they are not reported back to userspace. |
| */ |
| static void amdgpu_gem_va_update_vm(struct amdgpu_device *adev, |
| struct amdgpu_vm *vm, |
| struct amdgpu_bo_va *bo_va, |
| struct list_head *list, |
| uint32_t operation) |
| { |
| int r = -ERESTARTSYS; |
| |
| if (!amdgpu_gem_vm_ready(adev, vm, list)) |
| goto error; |
| |
| r = amdgpu_vm_update_directories(adev, vm); |
| if (r) |
| goto error; |
| |
| r = amdgpu_vm_clear_freed(adev, vm, NULL); |
| if (r) |
| goto error; |
| |
| if (operation == AMDGPU_VA_OP_MAP || |
| operation == AMDGPU_VA_OP_REPLACE) |
| r = amdgpu_vm_bo_update(adev, bo_va, false); |
| |
| error: |
| if (r && r != -ERESTARTSYS) |
| DRM_ERROR("Couldn't update BO_VA (%d)\n", r); |
| } |
| |
| int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *filp) |
| { |
| const uint32_t valid_flags = AMDGPU_VM_DELAY_UPDATE | |
| AMDGPU_VM_PAGE_READABLE | AMDGPU_VM_PAGE_WRITEABLE | |
| AMDGPU_VM_PAGE_EXECUTABLE | AMDGPU_VM_MTYPE_MASK; |
| const uint32_t prt_flags = AMDGPU_VM_DELAY_UPDATE | |
| AMDGPU_VM_PAGE_PRT; |
| |
| struct drm_amdgpu_gem_va *args = data; |
| struct drm_gem_object *gobj; |
| struct amdgpu_device *adev = dev->dev_private; |
| struct amdgpu_fpriv *fpriv = filp->driver_priv; |
| struct amdgpu_bo *abo; |
| struct amdgpu_bo_va *bo_va; |
| struct amdgpu_bo_list_entry vm_pd; |
| struct ttm_validate_buffer tv; |
| struct ww_acquire_ctx ticket; |
| struct list_head list; |
| uint64_t va_flags; |
| int r = 0; |
| |
| if (args->va_address < AMDGPU_VA_RESERVED_SIZE) { |
| dev_err(&dev->pdev->dev, |
| "va_address 0x%lX is in reserved area 0x%X\n", |
| (unsigned long)args->va_address, |
| AMDGPU_VA_RESERVED_SIZE); |
| return -EINVAL; |
| } |
| |
| if ((args->flags & ~valid_flags) && (args->flags & ~prt_flags)) { |
| dev_err(&dev->pdev->dev, "invalid flags combination 0x%08X\n", |
| args->flags); |
| return -EINVAL; |
| } |
| |
| switch (args->operation) { |
| case AMDGPU_VA_OP_MAP: |
| case AMDGPU_VA_OP_UNMAP: |
| case AMDGPU_VA_OP_CLEAR: |
| case AMDGPU_VA_OP_REPLACE: |
| break; |
| default: |
| dev_err(&dev->pdev->dev, "unsupported operation %d\n", |
| args->operation); |
| return -EINVAL; |
| } |
| if ((args->operation == AMDGPU_VA_OP_MAP) || |
| (args->operation == AMDGPU_VA_OP_REPLACE)) { |
| if (amdgpu_kms_vram_lost(adev, fpriv)) |
| return -ENODEV; |
| } |
| |
| INIT_LIST_HEAD(&list); |
| if ((args->operation != AMDGPU_VA_OP_CLEAR) && |
| !(args->flags & AMDGPU_VM_PAGE_PRT)) { |
| gobj = drm_gem_object_lookup(filp, args->handle); |
| if (gobj == NULL) |
| return -ENOENT; |
| abo = gem_to_amdgpu_bo(gobj); |
| tv.bo = &abo->tbo; |
| tv.shared = false; |
| list_add(&tv.head, &list); |
| } else { |
| gobj = NULL; |
| abo = NULL; |
| } |
| |
| amdgpu_vm_get_pd_bo(&fpriv->vm, &list, &vm_pd); |
| |
| r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL); |
| if (r) |
| goto error_unref; |
| |
| if (abo) { |
| bo_va = amdgpu_vm_bo_find(&fpriv->vm, abo); |
| if (!bo_va) { |
| r = -ENOENT; |
| goto error_backoff; |
| } |
| } else if (args->operation != AMDGPU_VA_OP_CLEAR) { |
| bo_va = fpriv->prt_va; |
| } else { |
| bo_va = NULL; |
| } |
| |
| switch (args->operation) { |
| case AMDGPU_VA_OP_MAP: |
| r = amdgpu_vm_alloc_pts(adev, bo_va->base.vm, args->va_address, |
| args->map_size); |
| if (r) |
| goto error_backoff; |
| |
| va_flags = amdgpu_vm_get_pte_flags(adev, args->flags); |
| r = amdgpu_vm_bo_map(adev, bo_va, args->va_address, |
| args->offset_in_bo, args->map_size, |
| va_flags); |
| break; |
| case AMDGPU_VA_OP_UNMAP: |
| r = amdgpu_vm_bo_unmap(adev, bo_va, args->va_address); |
| break; |
| |
| case AMDGPU_VA_OP_CLEAR: |
| r = amdgpu_vm_bo_clear_mappings(adev, &fpriv->vm, |
| args->va_address, |
| args->map_size); |
| break; |
| case AMDGPU_VA_OP_REPLACE: |
| r = amdgpu_vm_alloc_pts(adev, bo_va->base.vm, args->va_address, |
| args->map_size); |
| if (r) |
| goto error_backoff; |
| |
| va_flags = amdgpu_vm_get_pte_flags(adev, args->flags); |
| r = amdgpu_vm_bo_replace_map(adev, bo_va, args->va_address, |
| args->offset_in_bo, args->map_size, |
| va_flags); |
| break; |
| default: |
| break; |
| } |
| if (!r && !(args->flags & AMDGPU_VM_DELAY_UPDATE) && !amdgpu_vm_debug) |
| amdgpu_gem_va_update_vm(adev, &fpriv->vm, bo_va, &list, |
| args->operation); |
| |
| error_backoff: |
| ttm_eu_backoff_reservation(&ticket, &list); |
| |
| error_unref: |
| drm_gem_object_put_unlocked(gobj); |
| return r; |
| } |
| |
| int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *filp) |
| { |
| struct drm_amdgpu_gem_op *args = data; |
| struct drm_gem_object *gobj; |
| struct amdgpu_bo *robj; |
| int r; |
| |
| gobj = drm_gem_object_lookup(filp, args->handle); |
| if (gobj == NULL) { |
| return -ENOENT; |
| } |
| robj = gem_to_amdgpu_bo(gobj); |
| |
| r = amdgpu_bo_reserve(robj, false); |
| if (unlikely(r)) |
| goto out; |
| |
| switch (args->op) { |
| case AMDGPU_GEM_OP_GET_GEM_CREATE_INFO: { |
| struct drm_amdgpu_gem_create_in info; |
| void __user *out = u64_to_user_ptr(args->value); |
| |
| info.bo_size = robj->gem_base.size; |
| info.alignment = robj->tbo.mem.page_alignment << PAGE_SHIFT; |
| info.domains = robj->preferred_domains; |
| info.domain_flags = robj->flags; |
| amdgpu_bo_unreserve(robj); |
| if (copy_to_user(out, &info, sizeof(info))) |
| r = -EFAULT; |
| break; |
| } |
| case AMDGPU_GEM_OP_SET_PLACEMENT: |
| if (robj->prime_shared_count && (args->value & AMDGPU_GEM_DOMAIN_VRAM)) { |
| r = -EINVAL; |
| amdgpu_bo_unreserve(robj); |
| break; |
| } |
| if (amdgpu_ttm_tt_get_usermm(robj->tbo.ttm)) { |
| r = -EPERM; |
| amdgpu_bo_unreserve(robj); |
| break; |
| } |
| robj->preferred_domains = args->value & (AMDGPU_GEM_DOMAIN_VRAM | |
| AMDGPU_GEM_DOMAIN_GTT | |
| AMDGPU_GEM_DOMAIN_CPU); |
| robj->allowed_domains = robj->preferred_domains; |
| if (robj->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM) |
| robj->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT; |
| |
| amdgpu_bo_unreserve(robj); |
| break; |
| default: |
| amdgpu_bo_unreserve(robj); |
| r = -EINVAL; |
| } |
| |
| out: |
| drm_gem_object_put_unlocked(gobj); |
| return r; |
| } |
| |
| int amdgpu_mode_dumb_create(struct drm_file *file_priv, |
| struct drm_device *dev, |
| struct drm_mode_create_dumb *args) |
| { |
| struct amdgpu_device *adev = dev->dev_private; |
| struct drm_gem_object *gobj; |
| uint32_t handle; |
| int r; |
| |
| args->pitch = amdgpu_align_pitch(adev, args->width, |
| DIV_ROUND_UP(args->bpp, 8), 0); |
| args->size = (u64)args->pitch * args->height; |
| args->size = ALIGN(args->size, PAGE_SIZE); |
| |
| r = amdgpu_gem_object_create(adev, args->size, 0, |
| AMDGPU_GEM_DOMAIN_VRAM, |
| AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED, |
| ttm_bo_type_device, |
| &gobj); |
| if (r) |
| return -ENOMEM; |
| |
| r = drm_gem_handle_create(file_priv, gobj, &handle); |
| /* drop reference from allocate - handle holds it now */ |
| drm_gem_object_put_unlocked(gobj); |
| if (r) { |
| return r; |
| } |
| args->handle = handle; |
| return 0; |
| } |
| |
| #if defined(CONFIG_DEBUG_FS) |
| static int amdgpu_debugfs_gem_bo_info(int id, void *ptr, void *data) |
| { |
| struct drm_gem_object *gobj = ptr; |
| struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj); |
| struct seq_file *m = data; |
| |
| unsigned domain; |
| const char *placement; |
| unsigned pin_count; |
| uint64_t offset; |
| |
| domain = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type); |
| switch (domain) { |
| case AMDGPU_GEM_DOMAIN_VRAM: |
| placement = "VRAM"; |
| break; |
| case AMDGPU_GEM_DOMAIN_GTT: |
| placement = " GTT"; |
| break; |
| case AMDGPU_GEM_DOMAIN_CPU: |
| default: |
| placement = " CPU"; |
| break; |
| } |
| seq_printf(m, "\t0x%08x: %12ld byte %s", |
| id, amdgpu_bo_size(bo), placement); |
| |
| offset = READ_ONCE(bo->tbo.mem.start); |
| if (offset != AMDGPU_BO_INVALID_OFFSET) |
| seq_printf(m, " @ 0x%010Lx", offset); |
| |
| pin_count = READ_ONCE(bo->pin_count); |
| if (pin_count) |
| seq_printf(m, " pin count %d", pin_count); |
| seq_printf(m, "\n"); |
| |
| return 0; |
| } |
| |
| static int amdgpu_debugfs_gem_info(struct seq_file *m, void *data) |
| { |
| struct drm_info_node *node = (struct drm_info_node *)m->private; |
| struct drm_device *dev = node->minor->dev; |
| struct drm_file *file; |
| int r; |
| |
| r = mutex_lock_interruptible(&dev->filelist_mutex); |
| if (r) |
| return r; |
| |
| list_for_each_entry(file, &dev->filelist, lhead) { |
| struct task_struct *task; |
| |
| /* |
| * Although we have a valid reference on file->pid, that does |
| * not guarantee that the task_struct who called get_pid() is |
| * still alive (e.g. get_pid(current) => fork() => exit()). |
| * Therefore, we need to protect this ->comm access using RCU. |
| */ |
| rcu_read_lock(); |
| task = pid_task(file->pid, PIDTYPE_PID); |
| seq_printf(m, "pid %8d command %s:\n", pid_nr(file->pid), |
| task ? task->comm : "<unknown>"); |
| rcu_read_unlock(); |
| |
| spin_lock(&file->table_lock); |
| idr_for_each(&file->object_idr, amdgpu_debugfs_gem_bo_info, m); |
| spin_unlock(&file->table_lock); |
| } |
| |
| mutex_unlock(&dev->filelist_mutex); |
| return 0; |
| } |
| |
| static const struct drm_info_list amdgpu_debugfs_gem_list[] = { |
| {"amdgpu_gem_info", &amdgpu_debugfs_gem_info, 0, NULL}, |
| }; |
| #endif |
| |
| int amdgpu_gem_debugfs_init(struct amdgpu_device *adev) |
| { |
| #if defined(CONFIG_DEBUG_FS) |
| return amdgpu_debugfs_add_files(adev, amdgpu_debugfs_gem_list, 1); |
| #endif |
| return 0; |
| } |