mirror of
git://nv-tegra.nvidia.com/linux-nv-oot.git
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faa6040875
In compression carveout, granule size should be configurable via device tree. Earlier code was written by considering granule size of 2MB, update the code to use configurable granule size read from DT. Bug 3956637 Change-Id: Ib1e966117b2bd9511cbcde37a6011c17f38f22e2 Signed-off-by: Ketan Patil <ketanp@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2899865 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com> Reviewed-by: Krishna Reddy <vdumpa@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2010-2023, NVIDIA Corporation. All rights reserved.
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*
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* GPU heap allocator.
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*/
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#ifndef __NVMAP_HEAP_H
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#define __NVMAP_HEAP_H
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struct device;
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struct nvmap_heap;
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struct nvmap_client;
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struct nvmap_heap_block {
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phys_addr_t base;
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unsigned int type;
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struct nvmap_handle *handle;
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};
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struct nvmap_heap {
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struct list_head all_list;
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struct mutex lock;
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const char *name;
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void *arg;
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/* heap base */
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phys_addr_t base;
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/* heap size */
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size_t len;
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size_t free_size;
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struct device *cma_dev;
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struct device *dma_dev;
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bool is_ivm;
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bool is_compression_co;
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u32 granule_size;
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bool can_alloc; /* Used only if is_ivm == true */
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unsigned int peer; /* Used only if is_ivm == true */
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unsigned int vm_id; /* Used only if is_ivm == true */
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struct nvmap_pm_ops pm_ops;
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#ifdef NVMAP_CONFIG_DEBUG_MAPS
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struct rb_root device_names;
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#endif /* NVMAP_CONFIG_DEBUG_MAPS */
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};
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struct list_block {
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struct nvmap_heap_block block;
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struct list_head all_list;
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unsigned int mem_prot;
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phys_addr_t orig_addr;
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size_t size;
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size_t align;
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struct nvmap_heap *heap;
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struct list_head free_list;
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};
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struct nvmap_heap *nvmap_heap_create(struct device *parent,
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const struct nvmap_platform_carveout *co,
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phys_addr_t base, size_t len, void *arg);
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void nvmap_heap_destroy(struct nvmap_heap *heap);
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struct nvmap_heap_block *nvmap_heap_alloc(struct nvmap_heap *heap,
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struct nvmap_handle *handle,
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phys_addr_t *start);
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struct nvmap_heap *nvmap_block_to_heap(struct nvmap_heap_block *b);
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void nvmap_heap_free(struct nvmap_heap_block *block);
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int __init nvmap_heap_init(void);
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void nvmap_heap_deinit(void);
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int nvmap_flush_heap_block(struct nvmap_client *client,
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struct nvmap_heap_block *block, size_t len, unsigned int prot);
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void nvmap_heap_debugfs_init(struct dentry *heap_root, struct nvmap_heap *heap);
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int nvmap_query_heap_peer(struct nvmap_heap *heap, unsigned int *peer);
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size_t nvmap_query_heap_size(struct nvmap_heap *heap);
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#endif
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