diff options
Diffstat (limited to 'drivers/gpu/drm/i915/selftests/mock_gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/selftests/mock_gtt.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/selftests/mock_gtt.c b/drivers/gpu/drm/i915/selftests/mock_gtt.c new file mode 100644 index 000000000000..a61309c7cb3e --- /dev/null +++ b/drivers/gpu/drm/i915/selftests/mock_gtt.c @@ -0,0 +1,138 @@ +/* + * Copyright © 2016 Intel Corporation + * + * 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 (including the next + * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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. + * + */ + +#include "mock_gtt.h" + +static void mock_insert_page(struct i915_address_space *vm, + dma_addr_t addr, + u64 offset, + enum i915_cache_level level, + u32 flags) +{ +} + +static void mock_insert_entries(struct i915_address_space *vm, + struct sg_table *st, + u64 start, + enum i915_cache_level level, u32 flags) +{ +} + +static int mock_bind_ppgtt(struct i915_vma *vma, + enum i915_cache_level cache_level, + u32 flags) +{ + GEM_BUG_ON(flags & I915_VMA_GLOBAL_BIND); + vma->pages = vma->obj->mm.pages; + vma->flags |= I915_VMA_LOCAL_BIND; + return 0; +} + +static void mock_unbind_ppgtt(struct i915_vma *vma) +{ +} + +static void mock_cleanup(struct i915_address_space *vm) +{ +} + +struct i915_hw_ppgtt * +mock_ppgtt(struct drm_i915_private *i915, + const char *name) +{ + struct i915_hw_ppgtt *ppgtt; + + ppgtt = kzalloc(sizeof(*ppgtt), GFP_KERNEL); + if (!ppgtt) + return NULL; + + kref_init(&ppgtt->ref); + ppgtt->base.i915 = i915; + ppgtt->base.total = round_down(U64_MAX, PAGE_SIZE); + ppgtt->base.file = ERR_PTR(-ENODEV); + + INIT_LIST_HEAD(&ppgtt->base.active_list); + INIT_LIST_HEAD(&ppgtt->base.inactive_list); + INIT_LIST_HEAD(&ppgtt->base.unbound_list); + + INIT_LIST_HEAD(&ppgtt->base.global_link); + drm_mm_init(&ppgtt->base.mm, 0, ppgtt->base.total); + i915_gem_timeline_init(i915, &ppgtt->base.timeline, name); + + ppgtt->base.clear_range = nop_clear_range; + ppgtt->base.insert_page = mock_insert_page; + ppgtt->base.insert_entries = mock_insert_entries; + ppgtt->base.bind_vma = mock_bind_ppgtt; + ppgtt->base.unbind_vma = mock_unbind_ppgtt; + ppgtt->base.cleanup = mock_cleanup; + + return ppgtt; +} + +static int mock_bind_ggtt(struct i915_vma *vma, + enum i915_cache_level cache_level, + u32 flags) +{ + int err; + + err = i915_get_ggtt_vma_pages(vma); + if (err) + return err; + + vma->flags |= I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND; + return 0; +} + +static void mock_unbind_ggtt(struct i915_vma *vma) +{ +} + +void mock_init_ggtt(struct drm_i915_private *i915) +{ + struct i915_ggtt *ggtt = &i915->ggtt; + + INIT_LIST_HEAD(&i915->vm_list); + + ggtt->base.i915 = i915; + + ggtt->mappable_base = 0; + ggtt->mappable_end = 2048 * PAGE_SIZE; + ggtt->base.total = 4096 * PAGE_SIZE; + + ggtt->base.clear_range = nop_clear_range; + ggtt->base.insert_page = mock_insert_page; + ggtt->base.insert_entries = mock_insert_entries; + ggtt->base.bind_vma = mock_bind_ggtt; + ggtt->base.unbind_vma = mock_unbind_ggtt; + ggtt->base.cleanup = mock_cleanup; + + i915_address_space_init(&ggtt->base, i915, "global"); +} + +void mock_fini_ggtt(struct drm_i915_private *i915) +{ + struct i915_ggtt *ggtt = &i915->ggtt; + + i915_address_space_fini(&ggtt->base); +} |