79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2021 Intel Corporation
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*/
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#include <drm/drm_modeset_helper.h>
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#include "i915_drv.h"
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#include "intel_display_types.h"
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#include "intel_fb_bo.h"
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void intel_fb_bo_framebuffer_fini(struct xe_bo *bo)
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{
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if (bo->flags & XE_BO_CREATE_PINNED_BIT) {
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/* Unpin our kernel fb first */
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xe_bo_lock(bo, false);
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xe_bo_unpin(bo);
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xe_bo_unlock(bo);
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}
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xe_bo_put(bo);
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}
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int intel_fb_bo_framebuffer_init(struct intel_framebuffer *intel_fb,
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struct xe_bo *bo,
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struct drm_mode_fb_cmd2 *mode_cmd)
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{
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struct drm_i915_private *i915 = to_i915(bo->ttm.base.dev);
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int ret;
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xe_bo_get(bo);
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ret = ttm_bo_reserve(&bo->ttm, true, false, NULL);
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if (ret)
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goto err;
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if (!(bo->flags & XE_BO_SCANOUT_BIT)) {
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/*
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* XE_BO_SCANOUT_BIT should ideally be set at creation, or is
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* automatically set when creating FB. We cannot change caching
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* mode when the boect is VM_BINDed, so we can only set
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* coherency with display when unbound.
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*/
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if (XE_IOCTL_DBG(i915, !list_empty(&bo->ttm.base.gpuva.list))) {
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ttm_bo_unreserve(&bo->ttm);
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ret = -EINVAL;
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goto err;
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}
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bo->flags |= XE_BO_SCANOUT_BIT;
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}
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ttm_bo_unreserve(&bo->ttm);
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return 0;
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err:
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xe_bo_put(bo);
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return ret;
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}
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struct xe_bo *intel_fb_bo_lookup_valid_bo(struct drm_i915_private *i915,
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struct drm_file *filp,
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const struct drm_mode_fb_cmd2 *mode_cmd)
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{
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struct drm_i915_gem_object *bo;
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struct drm_gem_object *gem = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
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if (!gem)
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return ERR_PTR(-ENOENT);
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bo = gem_to_xe_bo(gem);
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/* Require vram placement or dma-buf import */
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if (IS_DGFX(i915) &&
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!xe_bo_can_migrate(gem_to_xe_bo(gem), XE_PL_VRAM0) &&
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bo->ttm.type != ttm_bo_type_sg) {
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drm_gem_object_put(gem);
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return ERR_PTR(-EREMOTE);
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}
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return bo;
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}
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