From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/panfrost/panfrost_gem.h | 87 +++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 drivers/gpu/drm/panfrost/panfrost_gem.h (limited to 'drivers/gpu/drm/panfrost/panfrost_gem.h') diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.h b/drivers/gpu/drm/panfrost/panfrost_gem.h new file mode 100644 index 000000000..ad2877eee --- /dev/null +++ b/drivers/gpu/drm/panfrost/panfrost_gem.h @@ -0,0 +1,87 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright 2019 Linaro, Ltd, Rob Herring */ + +#ifndef __PANFROST_GEM_H__ +#define __PANFROST_GEM_H__ + +#include +#include + +struct panfrost_mmu; + +struct panfrost_gem_object { + struct drm_gem_shmem_object base; + struct sg_table *sgts; + + /* + * Use a list for now. If searching a mapping ever becomes the + * bottleneck, we should consider using an RB-tree, or even better, + * let the core store drm_gem_object_mapping entries (where we + * could place driver specific data) instead of drm_gem_object ones + * in its drm_file->object_idr table. + * + * struct drm_gem_object_mapping { + * struct drm_gem_object *obj; + * void *driver_priv; + * }; + */ + struct { + struct list_head list; + struct mutex lock; + } mappings; + + /* + * Count the number of jobs referencing this BO so we don't let the + * shrinker reclaim this object prematurely. + */ + atomic_t gpu_usecount; + + bool noexec :1; + bool is_heap :1; +}; + +struct panfrost_gem_mapping { + struct list_head node; + struct kref refcount; + struct panfrost_gem_object *obj; + struct drm_mm_node mmnode; + struct panfrost_mmu *mmu; + bool active :1; +}; + +static inline +struct panfrost_gem_object *to_panfrost_bo(struct drm_gem_object *obj) +{ + return container_of(to_drm_gem_shmem_obj(obj), struct panfrost_gem_object, base); +} + +static inline struct panfrost_gem_mapping * +drm_mm_node_to_panfrost_mapping(struct drm_mm_node *node) +{ + return container_of(node, struct panfrost_gem_mapping, mmnode); +} + +struct drm_gem_object *panfrost_gem_create_object(struct drm_device *dev, size_t size); + +struct drm_gem_object * +panfrost_gem_prime_import_sg_table(struct drm_device *dev, + struct dma_buf_attachment *attach, + struct sg_table *sgt); + +struct panfrost_gem_object * +panfrost_gem_create(struct drm_device *dev, size_t size, u32 flags); + +int panfrost_gem_open(struct drm_gem_object *obj, struct drm_file *file_priv); +void panfrost_gem_close(struct drm_gem_object *obj, + struct drm_file *file_priv); + +struct panfrost_gem_mapping * +panfrost_gem_mapping_get(struct panfrost_gem_object *bo, + struct panfrost_file_priv *priv); +void panfrost_gem_mapping_put(struct panfrost_gem_mapping *mapping); +void panfrost_gem_teardown_mappings_locked(struct panfrost_gem_object *bo); + +void panfrost_gem_shrinker_init(struct drm_device *dev); +void panfrost_gem_shrinker_cleanup(struct drm_device *dev); + +#endif /* __PANFROST_GEM_H__ */ -- cgit v1.2.3