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44e694958b
As for display, the intent is to share the display code with the i915 driver so that there is maximum reuse there. We do this by recompiling i915/display code twice. Now that i915 has been adapted to support the Xe build, we can add the xe/display support. This initial work is a collaboration of many people and unfortunately this squashed patch won't fully honor the proper credits. But let's try to add a few from the squashed patches: Co-developed-by: Matthew Brost <matthew.brost@intel.com> Co-developed-by: Jani Nikula <jani.nikula@intel.com> Co-developed-by: Lucas De Marchi <lucas.demarchi@intel.com> Co-developed-by: Matt Roper <matthew.d.roper@intel.com> Co-developed-by: Mauro Carvalho Chehab <mchehab@kernel.org> Co-developed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Co-developed-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
66 lines
1.2 KiB
C
66 lines
1.2 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2022 Intel Corporation
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*/
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#ifndef _I915_GEM_OBJECT_H_
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#define _I915_GEM_OBJECT_H_
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#include <linux/types.h>
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#include "xe_bo.h"
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#define i915_gem_object_is_shmem(obj) ((obj)->flags & XE_BO_CREATE_SYSTEM_BIT)
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static inline dma_addr_t i915_gem_object_get_dma_address(const struct xe_bo *bo, pgoff_t n)
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{
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/* Should never be called */
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WARN_ON(1);
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return n;
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}
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static inline bool i915_gem_object_is_tiled(const struct xe_bo *bo)
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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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static inline bool i915_gem_object_is_userptr(const struct xe_bo *bo)
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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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static inline int i915_gem_object_read_from_page(struct xe_bo *bo,
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u32 ofs, u64 *ptr, u32 size)
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{
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struct ttm_bo_kmap_obj map;
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void *virtual;
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bool is_iomem;
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int ret;
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XE_WARN_ON(size != 8);
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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, ofs >> PAGE_SHIFT, 1, &map);
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if (ret)
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goto out_unlock;
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ofs &= ~PAGE_MASK;
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virtual = ttm_kmap_obj_virtual(&map, &is_iomem);
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if (is_iomem)
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*ptr = readq((void __iomem *)(virtual + ofs));
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else
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*ptr = *(u64 *)(virtual + ofs);
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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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#endif
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