85 lines
1.6 KiB
C
85 lines
1.6 KiB
C
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// SPDX-License-Identifier: MIT
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/* Copyright © 2024 Intel Corporation */
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#include <drm/drm_gem.h>
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#include "xe_bo.h"
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#include "intel_bo.h"
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bool intel_bo_is_tiled(struct drm_gem_object *obj)
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{
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/* legacy tiling is unused */
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return false;
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}
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bool intel_bo_is_userptr(struct drm_gem_object *obj)
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{
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/* xe does not have userptr bos */
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return false;
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}
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bool intel_bo_is_shmem(struct drm_gem_object *obj)
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{
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return false;
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}
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bool intel_bo_is_protected(struct drm_gem_object *obj)
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{
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return false;
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}
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void intel_bo_flush_if_display(struct drm_gem_object *obj)
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{
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}
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int intel_bo_fb_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
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{
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return drm_gem_prime_mmap(obj, vma);
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}
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int intel_bo_read_from_page(struct drm_gem_object *obj, u64 offset, void *dst, int size)
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{
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struct xe_bo *bo = gem_to_xe_bo(obj);
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struct ttm_bo_kmap_obj map;
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void *src;
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bool is_iomem;
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int ret;
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ret = xe_bo_lock(bo, true);
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if (ret)
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return ret;
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ret = ttm_bo_kmap(&bo->ttm, offset >> PAGE_SHIFT, 1, &map);
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if (ret)
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goto out_unlock;
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offset &= ~PAGE_MASK;
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src = ttm_kmap_obj_virtual(&map, &is_iomem);
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src += offset;
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if (is_iomem)
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memcpy_fromio(dst, (void __iomem *)src, size);
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else
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memcpy(dst, src, size);
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ttm_bo_kunmap(&map);
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out_unlock:
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xe_bo_unlock(bo);
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return ret;
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}
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struct intel_frontbuffer *intel_bo_get_frontbuffer(struct drm_gem_object *obj)
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{
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return NULL;
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}
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struct intel_frontbuffer *intel_bo_set_frontbuffer(struct drm_gem_object *obj,
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struct intel_frontbuffer *front)
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{
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return front;
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}
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void intel_bo_describe(struct seq_file *m, struct drm_gem_object *obj)
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{
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/* FIXME */
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}
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