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34e804220f
In some rare cases, the drm_mm node cannot be removed synchronously
due to runtime PM conditions. In this situation, the node removal will
be delegated to a workqueue that will be able to wake up the device
before removing the node.
However, in this situation, the lifetime of the xe_ggtt_node cannot
be restricted to the lifetime of the parent object. So, this patch
introduces the infrastructure so the xe_ggtt_node struct can be
allocated in advance and freed when needed.
By having the ggtt backpointer, it also ensure that the init function
is always called before any attempt to insert or reserve the node
in the GGTT.
v2: s/xe_ggtt_node_force_fini/xe_ggtt_node_fini and use it
internaly (Brost)
v3: - Use GF_NOFS for node allocation (CI)
- Avoid ggtt argument, now that we have it inside the node (Lucas)
- Fix some missed fini cases (CI)
v4: - Fix SRIOV critical case where config->ggtt_region was
lost (Michal)
- Avoid ggtt argument also on removal (missed case on v3) (Michal)
- Remove useless checks (Michal)
- Return 0 instead of negative errno on a u32 addr. (Michal)
- s/xe_ggtt_assign/xe_ggtt_node_assign for coherence, while we
are touching it (Michal)
v5: - Fix VFs' ggtt_balloon
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240821193842.352557-11-rodrigo.vivi@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
42 lines
1.4 KiB
C
42 lines
1.4 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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#ifndef _XE_GGTT_H_
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#define _XE_GGTT_H_
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#include "xe_ggtt_types.h"
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struct drm_printer;
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int xe_ggtt_init_early(struct xe_ggtt *ggtt);
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int xe_ggtt_init(struct xe_ggtt *ggtt);
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struct xe_ggtt_node *xe_ggtt_node_init(struct xe_ggtt *ggtt);
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void xe_ggtt_node_fini(struct xe_ggtt_node *node);
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int xe_ggtt_node_insert_balloon(struct xe_ggtt_node *node,
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u64 start, u64 size);
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void xe_ggtt_node_remove_balloon(struct xe_ggtt_node *node);
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int xe_ggtt_node_insert(struct xe_ggtt_node *node, u32 size, u32 align);
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int xe_ggtt_node_insert_locked(struct xe_ggtt_node *node,
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u32 size, u32 align, u32 mm_flags);
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void xe_ggtt_node_remove(struct xe_ggtt_node *node, bool invalidate);
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bool xe_ggtt_node_allocated(const struct xe_ggtt_node *node);
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void xe_ggtt_map_bo(struct xe_ggtt *ggtt, struct xe_bo *bo);
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int xe_ggtt_insert_bo(struct xe_ggtt *ggtt, struct xe_bo *bo);
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int xe_ggtt_insert_bo_at(struct xe_ggtt *ggtt, struct xe_bo *bo,
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u64 start, u64 end);
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void xe_ggtt_remove_bo(struct xe_ggtt *ggtt, struct xe_bo *bo);
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u64 xe_ggtt_largest_hole(struct xe_ggtt *ggtt, u64 alignment, u64 *spare);
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int xe_ggtt_dump(struct xe_ggtt *ggtt, struct drm_printer *p);
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u64 xe_ggtt_print_holes(struct xe_ggtt *ggtt, u64 alignment, struct drm_printer *p);
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#ifdef CONFIG_PCI_IOV
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void xe_ggtt_assign(const struct xe_ggtt_node *node, u16 vfid);
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#endif
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#endif
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