From f347fde22f1297e4f022600d201780d5ead78114 Mon Sep 17 00:00:00 2001 From: Joshua Bakita Date: Wed, 25 Sep 2024 16:09:09 -0400 Subject: Delete no-longer-needed nvgpu headers The dependency on these was removed in commit 8340d234. --- include/nvgpu/kmem.h | 285 --------------------------------------------------- 1 file changed, 285 deletions(-) delete mode 100644 include/nvgpu/kmem.h (limited to 'include/nvgpu/kmem.h') diff --git a/include/nvgpu/kmem.h b/include/nvgpu/kmem.h deleted file mode 100644 index 61f90bf..0000000 --- a/include/nvgpu/kmem.h +++ /dev/null @@ -1,285 +0,0 @@ -/* - * Copyright (c) 2017-2018, NVIDIA CORPORATION. All rights reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - */ - -#ifndef NVGPU_KMEM_H -#define NVGPU_KMEM_H - -#include -#include - -struct gk20a; - -/* - * When there's other implementations make sure they are included instead of - * Linux when not compiling on Linux! - */ -#ifdef __KERNEL__ -#include -#elif defined(__NVGPU_POSIX__) -#include -#else -#include -#endif - -/** - * DOC: Kmem cache support - * - * In Linux there is support for the notion of a kmem_cache. It gives better - * memory usage characteristics for lots of allocations of the same size. Think - * structs that get allocated over and over. Normal kmalloc() type routines - * typically round to the next power-of-2 since that's easy. - * - * But if we know the size ahead of time the packing for the allocations can be - * much better. This is the benefit of a slab allocator. This type hides the - * underlying kmem_cache (or absense thereof). - */ -struct nvgpu_kmem_cache; - -#ifdef CONFIG_NVGPU_TRACK_MEM_USAGE -/* - * Uncomment this if you want to enable stack traces in the memory profiling. - * Since this is a fairly high overhead operation and is only necessary for - * debugging actual bugs it's left here for developers to enable. - */ -/* #define __NVGPU_SAVE_KALLOC_STACK_TRACES */ - -/* - * Defined per-OS. - */ -struct nvgpu_mem_alloc_tracker; -#endif - - -/** - * nvgpu_kmem_cache_create - create an nvgpu kernel memory cache. - * - * @g The GPU driver struct using this cache. - * @size Size of the object allocated by the cache. - * - * This cache can be used to allocate objects of size @size. Common usage would - * be for a struct that gets allocated a lot. In that case @size should be - * sizeof(struct my_struct). - * - * A given implementation of this need not do anything special. The allocation - * routines can simply be passed on to nvgpu_kzalloc() if desired so packing - * and alignment of the structs cannot be assumed. - */ -struct nvgpu_kmem_cache *nvgpu_kmem_cache_create(struct gk20a *g, size_t size); - -/** - * nvgpu_kmem_cache_destroy - destroy a cache created by - * nvgpu_kmem_cache_create(). - * - * @cache The cache to destroy. - */ -void nvgpu_kmem_cache_destroy(struct nvgpu_kmem_cache *cache); - -/** - * nvgpu_kmem_cache_alloc - Allocate an object from the cache - * - * @cache The cache to alloc from. - */ -void *nvgpu_kmem_cache_alloc(struct nvgpu_kmem_cache *cache); - -/** - * nvgpu_kmem_cache_free - Free an object back to a cache - * - * @cache The cache to return the object to. - * @ptr Pointer to the object to free. - */ -void nvgpu_kmem_cache_free(struct nvgpu_kmem_cache *cache, void *ptr); - -/** - * nvgpu_kmalloc - Allocate from the kernel's allocator. - * - * @g: Current GPU. - * @size: Size of the allocation. - * - * Allocate a chunk of system memory from the kernel. Allocations larger than 1 - * page may fail even when there may appear to be enough memory. - * - * This function may sleep so cannot be used in IRQs. - */ -#define nvgpu_kmalloc(g, size) __nvgpu_kmalloc(g, size, _NVGPU_GET_IP_) - -/** - * nvgpu_kzalloc - Allocate from the kernel's allocator. - * - * @g: Current GPU. - * @size: Size of the allocation. - * - * Identical to nvgpu_kalloc() except the memory will be zeroed before being - * returned. - */ -#define nvgpu_kzalloc(g, size) __nvgpu_kzalloc(g, size, _NVGPU_GET_IP_) - -/** - * nvgpu_kcalloc - Allocate from the kernel's allocator. - * - * @g: Current GPU. - * @n: Number of objects. - * @size: Size of each object. - * - * Identical to nvgpu_kalloc() except the size of the memory chunk returned is - * @n * @size. - */ -#define nvgpu_kcalloc(g, n, size) \ - __nvgpu_kcalloc(g, n, size, _NVGPU_GET_IP_) - -/** - * nvgpu_vmalloc - Allocate memory and return a map to it. - * - * @g: Current GPU. - * @size: Size of the allocation. - * - * Allocate some memory and return a pointer to a virtual memory mapping of - * that memory in the kernel's virtual address space. The underlying physical - * memory is not guaranteed to be contiguous (and indeed likely isn't). This - * allows for much larger allocations to be done without worrying about as much - * about physical memory fragmentation. - * - * This function may sleep. - */ -#define nvgpu_vmalloc(g, size) __nvgpu_vmalloc(g, size, _NVGPU_GET_IP_) - -/** - * nvgpu_vzalloc - Allocate memory and return a map to it. - * - * @g: Current GPU. - * @size: Size of the allocation. - * - * Identical to nvgpu_vmalloc() except this will return zero'ed memory. - */ -#define nvgpu_vzalloc(g, size) __nvgpu_vzalloc(g, size, _NVGPU_GET_IP_) - -/** - * nvgpu_kfree - Frees an alloc from nvgpu_kmalloc, nvgpu_kzalloc, - * nvgpu_kcalloc. - * - * @g: Current GPU. - * @addr: Address of object to free. - */ -#define nvgpu_kfree(g, addr) __nvgpu_kfree(g, addr) - -/** - * nvgpu_vfree - Frees an alloc from nvgpu_vmalloc, nvgpu_vzalloc. - * - * @g: Current GPU. - * @addr: Address of object to free. - */ -#define nvgpu_vfree(g, addr) __nvgpu_vfree(g, addr) - -#define kmem_dbg(g, fmt, args...) \ - nvgpu_log(g, gpu_dbg_kmem, fmt, ##args) - -/** - * nvgpu_kmem_init - Initialize the kmem tracking stuff. - * - *@g: The driver to init. - * - * Returns non-zero on failure. - */ -int nvgpu_kmem_init(struct gk20a *g); - -/** - * nvgpu_kmem_fini - Finalize the kmem tracking code - * - * @g - The GPU. - * @flags - Flags that control operation of this finalization. - * - * Cleanup resources used by nvgpu_kmem. Available flags for cleanup are: - * - * %NVGPU_KMEM_FINI_DO_NOTHING - * %NVGPU_KMEM_FINI_FORCE_CLEANUP - * %NVGPU_KMEM_FINI_DUMP_ALLOCS - * %NVGPU_KMEM_FINI_WARN - * %NVGPU_KMEM_FINI_BUG - * - * %NVGPU_KMEM_FINI_DO_NOTHING will be overridden by anything else specified. - * Put another way don't just add %NVGPU_KMEM_FINI_DO_NOTHING and expect that - * to suppress other flags from doing anything. - */ -void nvgpu_kmem_fini(struct gk20a *g, int flags); - -/* - * These will simply be ignored if CONFIG_NVGPU_TRACK_MEM_USAGE is not defined. - */ -#define NVGPU_KMEM_FINI_DO_NOTHING 0 -#define NVGPU_KMEM_FINI_FORCE_CLEANUP (1 << 0) -#define NVGPU_KMEM_FINI_DUMP_ALLOCS (1 << 1) -#define NVGPU_KMEM_FINI_WARN (1 << 2) -#define NVGPU_KMEM_FINI_BUG (1 << 3) - -/* - * Implemented by the OS interface. - */ -void *__nvgpu_big_alloc(struct gk20a *g, size_t size, bool clear); - -/** - * nvgpu_big_malloc - Pick virtual or physical alloc based on @size - * - * @g - The GPU. - * @size - Size of the allocation. - * - * On some platforms (i.e Linux) it is possible to allocate memory directly - * mapped into the kernel's address space (kmalloc) or allocate discontiguous - * pages which are then mapped into a special kernel address range. Each type - * of allocation has pros and cons. kmalloc() for instance lets you allocate - * small buffers more space efficiently but vmalloc() allows you to successfully - * allocate much larger buffers without worrying about fragmentation as much - * (but will allocate in multiples of page size). - * - * This function aims to provide the right allocation for when buffers are of - * variable size. In some cases the code doesn't know ahead of time if the - * buffer is going to be big or small so this does the check for you and - * provides the right type of memory allocation. - * - * Returns a pointer to a virtual address range that the kernel can access or - * %NULL on failure. - */ -static inline void *nvgpu_big_malloc(struct gk20a *g, size_t size) -{ - return __nvgpu_big_alloc(g, size, false); -} - -/** - * nvgpu_big_malloc - Pick virtual or physical alloc based on @size - * - * @g - The GPU. - * @size - Size of the allocation. - * - * Zeroed memory version of nvgpu_big_malloc(). - */ -static inline void *nvgpu_big_zalloc(struct gk20a *g, size_t size) -{ - return __nvgpu_big_alloc(g, size, true); -} - -/** - * nvgpu_big_free - Free and alloc from nvgpu_big_zalloc() or - * nvgpu_big_malloc(). - * @g - The GPU. - * @p - A pointer allocated by nvgpu_big_zalloc() or nvgpu_big_malloc(). - */ -void nvgpu_big_free(struct gk20a *g, void *p); - -#endif /* NVGPU_KMEM_H */ -- cgit v1.2.2