69db25e447
xe_ttm_stolen_cpu_inaccessible() was originally meant to just cover the case where stolen is not directly CPU accessible on some older integrated platforms, and as such a GGTT mapping was also required for CPU access (as per the check in xe_bo_create_pin_map_at()). However with small-bar systems on dgfx we have one more case where stolen is also inaccessible, however here we don't have any fallback GGTT mode for CPU access. Fix the check in xe_bo_create_pin_map_at() to make this distinction clear. In such a case the later vmap() will fail anyway. v2: fix kernel-doc warning v3: Simplify further and remove cpu_inaccessible() Suggested-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
22 lines
539 B
C
22 lines
539 B
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 _XE_TTM_STOLEN_MGR_H_
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#define _XE_TTM_STOLEN_MGR_H_
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#include <linux/types.h>
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struct ttm_resource;
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struct xe_bo;
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struct xe_device;
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void xe_ttm_stolen_mgr_init(struct xe_device *xe);
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int xe_ttm_stolen_io_mem_reserve(struct xe_device *xe, struct ttm_resource *mem);
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bool xe_ttm_stolen_cpu_access_needs_ggtt(struct xe_device *xe);
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u64 xe_ttm_stolen_io_offset(struct xe_bo *bo, u32 offset);
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u64 xe_ttm_stolen_gpu_offset(struct xe_device *xe);
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#endif
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