Delete no-longer-needed nvgpu headersHEADmasterjbakita-wip

The dependency on these was removed in commit 8340d234.

1 files changed, 0 insertions, 359 deletions

diff --git a/include/nvgpu/nvgpu_mem.h b/include/nvgpu/nvgpu_mem.h
deleted file mode 100644
index 4e84f2a..0000000
--- a/include/nvgpu/nvgpu_mem.h
+++ /dev/null
@@ -1,359 +0,0 @@
-/*
- * Copyright (c) 2017-2020, 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_MEM_H
-#define NVGPU_MEM_H
-
-#include <nvgpu/types.h>
-#include <nvgpu/list.h>
-#include <nvgpu/enabled.h>
-
-#ifdef __KERNEL__
-#include <nvgpu/linux/nvgpu_mem.h>
-#elif defined(__NVGPU_POSIX__)
-#include <nvgpu/posix/nvgpu_mem.h>
-#else
-#include <nvgpu_rmos/include/nvgpu_mem.h>
-#endif
-
-struct page;
-struct sg_table;
-struct nvgpu_sgt;
-
-struct gk20a;
-struct nvgpu_allocator;
-struct nvgpu_gmmu_attrs;
-struct nvgpu_page_alloc;
-
-#define NVGPU_MEM_DMA_ERROR             (~0ULL)
-
-/*
- * Real location of a buffer - nvgpu_aperture_mask() will deduce what will be
- * told to the gpu about the aperture, but this flag designates where the
- * memory actually was allocated from.
- */
-enum nvgpu_aperture {
-        APERTURE_INVALID = 0, /* unallocated or N/A */
-        APERTURE_SYSMEM,
-
-         /* Don't use directly. Use APERTURE_SYSMEM, this is used internally. */
-        APERTURE_SYSMEM_COH,
-
-        APERTURE_VIDMEM
-};
-
-/*
- * Forward declared opaque placeholder type that does not really exist, but
- * helps the compiler help us about getting types right. In reality,
- * implementors of nvgpu_sgt_ops will have some concrete type in place of this.
- */
-struct nvgpu_sgl;
-
-struct nvgpu_sgt_ops {
-        struct nvgpu_sgl *(*sgl_next)(struct nvgpu_sgl *sgl);
-        u64   (*sgl_phys)(struct gk20a *g, struct nvgpu_sgl *sgl);
-        u64   (*sgl_dma)(struct nvgpu_sgl *sgl);
-        u64   (*sgl_length)(struct nvgpu_sgl *sgl);
-        u64   (*sgl_gpu_addr)(struct gk20a *g, struct nvgpu_sgl *sgl,
-                              struct nvgpu_gmmu_attrs *attrs);
-        /*
-         * If left NULL then iommuable is assumed to be false.
-         */
-        bool  (*sgt_iommuable)(struct gk20a *g, struct nvgpu_sgt *sgt);
-
-        /*
-         * Note: this operates on the whole SGT not a specific SGL entry.
-         */
-        void  (*sgt_free)(struct gk20a *g, struct nvgpu_sgt *sgt);
-};
-
-/*
- * Scatter gather table: this is a list of scatter list entries and the ops for
- * interacting with those entries.
- */
-struct nvgpu_sgt {
-        /*
-         * Ops for interacting with the underlying scatter gather list entries.
-         */
-        const struct nvgpu_sgt_ops *ops;
-
-        /*
-         * The first node in the scatter gather list.
-         */
-        struct nvgpu_sgl *sgl;
-};
-
-/*
- * This struct holds the necessary information for describing a struct
- * nvgpu_mem's scatter gather list.
- *
- * This is one underlying implementation for nvgpu_sgl. Not all nvgpu_sgt's use
- * this particular implementation. Nor is a given OS required to use this at
- * all.
- */
-struct nvgpu_mem_sgl {
-        /*
-         * Internally this is implemented as a singly linked list.
-         */
-        struct nvgpu_mem_sgl    *next;
-
-        /*
-         * There is both a phys address and a DMA address since some systems,
-         * for example ones with an IOMMU, may see these as different addresses.
-         */
-        u64                      phys;
-        u64                      dma;
-        u64                      length;
-};
-
-/*
- * Iterate over the SGL entries in an SGT.
- */
-#define nvgpu_sgt_for_each_sgl(__sgl__, __sgt__)                \
-        for ((__sgl__) = (__sgt__)->sgl;                        \
-             (__sgl__) != NULL;                                 \
-             (__sgl__) = nvgpu_sgt_get_next(__sgt__, __sgl__))
-
-struct nvgpu_mem {
-        /*
-         * Populated for all nvgpu_mem structs - vidmem or system.
-         */
-        enum nvgpu_aperture                      aperture;
-        size_t                                   size;
-        size_t                                   aligned_size;
-        u64                                      gpu_va;
-        bool                                     skip_wmb;
-        bool                                     free_gpu_va;
-
-        /*
-         * Set when a nvgpu_mem struct is not a "real" nvgpu_mem struct. Instead
-         * the struct is just a copy of another nvgpu_mem struct.
-         */
-#define NVGPU_MEM_FLAG_SHADOW_COPY               (1 << 0)
-
-        /*
-         * Specify that the GVA mapping is a fixed mapping - that is the caller
-         * chose the GPU VA, not the GMMU mapping function. Only relevant for
-         * VIDMEM.
-         */
-#define NVGPU_MEM_FLAG_FIXED                     (1 << 1)
-
-        /*
-         * Set for user generated VIDMEM allocations. This triggers a special
-         * cleanup path that clears the vidmem on free. Given that the VIDMEM is
-         * zeroed on boot this means that all user vidmem allocations are
-         * therefor zeroed (to prevent leaking information in VIDMEM buffers).
-         */
-#define NVGPU_MEM_FLAG_USER_MEM                  (1 << 2)
-
-        /*
-         * Internal flag that specifies this struct has not been made with DMA
-         * memory and as a result should not try to use the DMA routines for
-         * freeing the backing memory.
-         *
-         * However, this will not stop the DMA API from freeing other parts of
-         * nvgpu_mem in a system specific way.
-         */
-#define __NVGPU_MEM_FLAG_NO_DMA                  (1 << 3)
-        /*
-         * Some nvgpu_mem objects act as facades to memory buffers owned by
-         * someone else. This internal flag specifies that the sgt field is
-         * "borrowed", and it must not be freed by us.
-         *
-         * Of course the caller will have to make sure that the sgt owner
-         * outlives the nvgpu_mem.
-         */
-#define NVGPU_MEM_FLAG_FOREIGN_SGT               (1 << 4)
-        unsigned long                            mem_flags;
-
-        /*
-         * Only populated for a sysmem allocation.
-         */
-        void                                    *cpu_va;
-
-        /*
-         * Fields only populated for vidmem allocations.
-         */
-        struct nvgpu_page_alloc                 *vidmem_alloc;
-        struct nvgpu_allocator                  *allocator;
-        struct nvgpu_list_node                   clear_list_entry;
-
-        /*
-         * This is defined by the system specific header. It can be empty if
-         * there's no system specific stuff for a given system.
-         */
-        struct nvgpu_mem_priv                    priv;
-};
-
-static inline struct nvgpu_mem *
-nvgpu_mem_from_clear_list_entry(struct nvgpu_list_node *node)
-{
-        return (struct nvgpu_mem *)
-                ((uintptr_t)node - offsetof(struct nvgpu_mem,
-                                            clear_list_entry));
-};
-
-static inline const char *nvgpu_aperture_str(struct gk20a *g,
-                                             enum nvgpu_aperture aperture)
-{
-        switch (aperture) {
-        case APERTURE_INVALID:
-                return "INVAL";
-        case APERTURE_SYSMEM:
-                return "SYSMEM";
-        case APERTURE_SYSMEM_COH:
-                return "SYSCOH";
-        case APERTURE_VIDMEM:
-                return "VIDMEM";
-        };
-        return "UNKNOWN";
-}
-
-bool nvgpu_aperture_is_sysmem(enum nvgpu_aperture ap);
-bool nvgpu_mem_is_sysmem(struct nvgpu_mem *mem);
-
-/*
- * Returns true if the passed nvgpu_mem has been allocated (i.e it's valid for
- * subsequent use).
- */
-static inline bool nvgpu_mem_is_valid(struct nvgpu_mem *mem)
-{
-        /*
-         * Internally the DMA APIs must set/unset the aperture flag when
-         * allocating/freeing the buffer. So check that to see if the *mem
-         * has been allocated or not.
-         *
-         * This relies on mem_descs being zeroed before being initialized since
-         * APERTURE_INVALID is equal to 0.
-         */
-        return mem->aperture != APERTURE_INVALID;
-
-}
-
-/**
- * nvgpu_mem_sgt_create_from_mem - Create a scatter list from an nvgpu_mem.
- *
- * @g   - The GPU.
- * @mem - The source memory allocation to use.
- *
- * Create a scatter gather table from the passed @mem struct. This list lets the
- * calling code iterate across each chunk of a DMA allocation for when that DMA
- * allocation is not completely contiguous.
- */
-struct nvgpu_sgt *nvgpu_sgt_create_from_mem(struct gk20a *g,
-                                            struct nvgpu_mem *mem);
-
-struct nvgpu_sgl *nvgpu_sgt_get_next(struct nvgpu_sgt *sgt,
-                                          struct nvgpu_sgl *sgl);
-u64 nvgpu_sgt_get_phys(struct gk20a *g, struct nvgpu_sgt *sgt,
-                       struct nvgpu_sgl *sgl);
-u64 nvgpu_sgt_get_dma(struct nvgpu_sgt *sgt, struct nvgpu_sgl *sgl);
-u64 nvgpu_sgt_get_length(struct nvgpu_sgt *sgt, struct nvgpu_sgl *sgl);
-u64 nvgpu_sgt_get_gpu_addr(struct gk20a *g, struct nvgpu_sgt *sgt,
-                           struct nvgpu_sgl *sgl,
-                           struct nvgpu_gmmu_attrs *attrs);
-void nvgpu_sgt_free(struct gk20a *g, struct nvgpu_sgt *sgt);
-
-bool nvgpu_sgt_iommuable(struct gk20a *g, struct nvgpu_sgt *sgt);
-u64 nvgpu_sgt_alignment(struct gk20a *g, struct nvgpu_sgt *sgt);
-
-/**
- * nvgpu_mem_create_from_mem - Create a new nvgpu_mem struct from an old one.
- *
- * @g          - The GPU.
- * @dest       - Destination nvgpu_mem to hold resulting memory description.
- * @src        - Source memory. Must be valid.
- * @start_page - Starting page to use.
- * @nr_pages   - Number of pages to place in the new nvgpu_mem.
- *
- * Create a new nvgpu_mem struct describing a subsection of the @src nvgpu_mem.
- * This will create an nvpgu_mem object starting at @start_page and is @nr_pages
- * long. This currently only works on SYSMEM nvgpu_mems. If this is called on a
- * VIDMEM nvgpu_mem then this will return an error.
- *
- * There is a _major_ caveat to this API: if the source buffer is freed before
- * the copy is freed then the copy will become invalid. This is a result from
- * how typical DMA APIs work: we can't call free on the buffer multiple times.
- * Nor can we call free on parts of a buffer. Thus the only way to ensure that
- * the entire buffer is actually freed is to call free once on the source
- * buffer. Since these nvgpu_mem structs are not ref-counted in anyway it is up
- * to the caller of this API to _ensure_ that the resulting nvgpu_mem buffer
- * from this API is freed before the source buffer. Otherwise there can and will
- * be memory corruption.
- *
- * The resulting nvgpu_mem should be released with the nvgpu_dma_free() or the
- * nvgpu_dma_unmap_free() function depending on whether or not the resulting
- * nvgpu_mem has been mapped.
- *
- * This will return 0 on success. An error is returned if the resulting
- * nvgpu_mem would not make sense or if a new scatter gather table cannot be
- * created.
- */
-int nvgpu_mem_create_from_mem(struct gk20a *g,
-                              struct nvgpu_mem *dest, struct nvgpu_mem *src,
-                              u64 start_page, int nr_pages);
-
-/*
- * Really free a vidmem buffer. There's a fair amount of work involved in
- * freeing vidmem buffers in the DMA API. This handles none of that - it only
- * frees the underlying vidmem specific structures used in vidmem buffers.
- *
- * This is implemented in the OS specific code. If it's not necessary it can
- * be a noop. But the symbol must at least be present.
- */
-void __nvgpu_mem_free_vidmem_alloc(struct gk20a *g, struct nvgpu_mem *vidmem);
-
-/*
- * Buffer accessors. Sysmem buffers always have a CPU mapping and vidmem
- * buffers are accessed via PRAMIN.
- */
-
-/* word-indexed offset */
-u32 nvgpu_mem_rd32(struct gk20a *g, struct nvgpu_mem *mem, u32 w);
-/* byte offset (32b-aligned) */
-u32 nvgpu_mem_rd(struct gk20a *g, struct nvgpu_mem *mem, u32 offset);
-/* memcpy to cpu, offset and size in bytes (32b-aligned) */
-void nvgpu_mem_rd_n(struct gk20a *g, struct nvgpu_mem *mem, u32 offset,
-                void *dest, u32 size);
-
-/* word-indexed offset */
-void nvgpu_mem_wr32(struct gk20a *g, struct nvgpu_mem *mem, u32 w, u32 data);
-/* byte offset (32b-aligned) */
-void nvgpu_mem_wr(struct gk20a *g, struct nvgpu_mem *mem, u32 offset, u32 data);
-/* memcpy from cpu, offset and size in bytes (32b-aligned) */
-void nvgpu_mem_wr_n(struct gk20a *g, struct nvgpu_mem *mem, u32 offset,
-                void *src, u32 size);
-/* size and offset in bytes (32b-aligned), filled with the constant byte c */
-void nvgpu_memset(struct gk20a *g, struct nvgpu_mem *mem, u32 offset,
-                u32 c, u32 size);
-
-u64 nvgpu_mem_get_addr(struct gk20a *g, struct nvgpu_mem *mem);
-u64 nvgpu_mem_get_phys_addr(struct gk20a *g, struct nvgpu_mem *mem);
-
-u32 nvgpu_aperture_mask_raw(struct gk20a *g, enum nvgpu_aperture aperture,
-                u32 sysmem_mask, u32 sysmem_coh_mask, u32 vidmem_mask);
-u32 nvgpu_aperture_mask(struct gk20a *g, struct nvgpu_mem *mem,
-                u32 sysmem_mask, u32 sysmem_coh_mask, u32 vidmem_mask);
-
-u64 nvgpu_mem_iommu_translate(struct gk20a *g, u64 phys);
-
-#endif /* NVGPU_MEM_H */