mirror of
git://nv-tegra.nvidia.com/linux-nvgpu.git
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2a2c16af5f
Move all Linux source code files to drivers/gpu/nvgpu/os/linux from drivers/gpu/nvgpu/common/linux. This changes the meaning of common to be OS independent. JIRA NVGPU-598 JIRA NVGPU-601 Change-Id: Ib7f2a43d3688bb0d0b7dcc48469a6783fd988ce9 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1747714 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
106 lines
2.6 KiB
C
106 lines
2.6 KiB
C
/*
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* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __KMEM_PRIV_H__
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#define __KMEM_PRIV_H__
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#include <nvgpu/rbtree.h>
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#include <nvgpu/lock.h>
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struct seq_file;
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#define __pstat(s, fmt, msg...) \
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do { \
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if (s) \
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seq_printf(s, fmt, ##msg); \
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else \
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pr_info(fmt, ##msg); \
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} while (0)
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#define MAX_STACK_TRACE 20
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/*
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* Linux specific version of the nvgpu_kmem_cache struct. This type is
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* completely opaque to the rest of the driver.
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*/
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struct nvgpu_kmem_cache {
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struct gk20a *g;
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struct kmem_cache *cache;
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/*
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* Memory to hold the kmem_cache unique name. Only necessary on our
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* k3.10 kernel when not using the SLUB allocator but it's easier to
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* just carry this on to newer kernels.
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*/
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char name[128];
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};
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#ifdef CONFIG_NVGPU_TRACK_MEM_USAGE
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struct nvgpu_mem_alloc {
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struct nvgpu_mem_alloc_tracker *owner;
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void *ip;
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#ifdef __NVGPU_SAVE_KALLOC_STACK_TRACES
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unsigned long stack[MAX_STACK_TRACE];
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int stack_length;
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#endif
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u64 addr;
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unsigned long size;
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unsigned long real_size;
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struct nvgpu_rbtree_node allocs_entry;
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};
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static inline struct nvgpu_mem_alloc *
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nvgpu_mem_alloc_from_rbtree_node(struct nvgpu_rbtree_node *node)
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{
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return (struct nvgpu_mem_alloc *)
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((uintptr_t)node - offsetof(struct nvgpu_mem_alloc, allocs_entry));
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};
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/*
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* Linux specific tracking of vmalloc, kmalloc, etc.
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*/
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struct nvgpu_mem_alloc_tracker {
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const char *name;
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struct nvgpu_kmem_cache *allocs_cache;
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struct nvgpu_rbtree_node *allocs;
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struct nvgpu_mutex lock;
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u64 bytes_alloced;
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u64 bytes_freed;
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u64 bytes_alloced_real;
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u64 bytes_freed_real;
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u64 nr_allocs;
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u64 nr_frees;
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unsigned long min_alloc;
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unsigned long max_alloc;
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};
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void nvgpu_lock_tracker(struct nvgpu_mem_alloc_tracker *tracker);
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void nvgpu_unlock_tracker(struct nvgpu_mem_alloc_tracker *tracker);
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void kmem_print_mem_alloc(struct gk20a *g,
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struct nvgpu_mem_alloc *alloc,
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struct seq_file *s);
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#endif /* CONFIG_NVGPU_TRACK_MEM_USAGE */
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#endif /* __KMEM_PRIV_H__ */
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