/*
 * SPDX-FileCopyrightText: Copyright (c) 2023-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: MIT
 *
 * 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.
 */

#include "core/core.h"
#include "gpu/gpu.h"
#include "gpu/mem_mgr/mem_mgr.h"
#include "gpu/mem_sys/kern_mem_sys.h"
#include "nvRmReg.h"

#include "published/blackwell/gb202/kind_macros.h"
#include "published/blackwell/gb202/dev_mmu.h"

/*!
 * @brief Determine the kind of uncompressed PTE for a given allocation.
 * GB20X only supported GMK or GMK compression kinds. If bOverrideToGMK is true, only return GMK otherwise
 * call the _TU102 function.
 *
 * @param[in] pFbAllocPageFormat FB_ALLOC_PAGE_FORMAT pointer
 *
 * @returns   PTE kind.
 */
NvU32
memmgrChooseKindZ_GB202
(
    OBJGPU                 *pGpu,
    MemoryManager          *pMemoryManager,
    FB_ALLOC_PAGE_FORMAT   *pFbAllocPageFormat
)
{
    return NV_MMU_PTE_KIND_GENERIC_MEMORY;
}

/*!
 * @brief Determine the kind of compressed PTE with PLC disabled for a given allocation.
 *
 * @param[in] pFbAllocPageFormat FB_ALLOC_PAGE_FORMAT pointer
 *
 * @returns   PTE kind.
 */
NvU32
memmgrChooseKindCompressZ_GB202
(
    OBJGPU               *pGpu,
    MemoryManager        *pMemoryManager,
    FB_ALLOC_PAGE_FORMAT *pFbAllocPageFormat
)
{
    return NV_MMU_PTE_KIND_GENERIC_MEMORY_COMPRESSIBLE;
}

/*
 * @brief Return an uncompressible kind for the given kind.  
 * GB20X only supports GMK or compressible-GMK. Return GMK if bOverrideToGMK
 * is set or if mods want to bypass uncompression, otherwise call the _TU102 function.
 * @param[in] NvU32   - PTE kind
 * @param[in] NvBool  - ReleaseReacquire / full-fledge mode
 *
 * @returns NvU32 - Uncompressed kind for the compressed PTE kind type, or it will Assert
 */
NvU32
memmgrGetUncompressedKind_GB202
(
    OBJGPU        *pGpu,
    MemoryManager *pMemoryManager,
    NvU32          kind,
    NvBool         bReleaseReacquire
)
{
    if (kind == NV_MMU_PTE_KIND_PITCH)
        return NV_MMU_PTE_KIND_PITCH;

    return NV_MMU_PTE_KIND_GENERIC_MEMORY;
}

NvU32
memmgrGetCompressedKind_GB202
(
    MemoryManager *pMemoryManager,
    NvU32          kind,
    NvBool         bDisablePlc
)
{
    return bDisablePlc ? NV_MMU_PTE_KIND_GENERIC_MEMORY_COMPRESSIBLE_DISABLE_PLC
                       : NV_MMU_PTE_KIND_GENERIC_MEMORY_COMPRESSIBLE;
}

/*!
 *  Returns the max context size
 *
 *  @returns NvU64
 */
NvU64
memmgrGetMaxContextSize_GB202
(
    OBJGPU        *pGpu,
    MemoryManager *pMemoryManager
)
{
    NvU64  size = memmgrGetMaxContextSize_GA100(pGpu, pMemoryManager);

    if (RMCFG_FEATURE_PLATFORM_WINDOWS)
    {
        size += 10 * 1024 * 1024;
    }

    if (IS_GSP_CLIENT(pGpu) && gpuIsClientRmAllocatedCtxBufferEnabled(pGpu))
    {
        // We need extra 50MBs to meet max GR buffer allocation requirement
        // as global ctx buffers are allocated from RM heap for non-MIG.
        size += 50 * 1024 * 1024;
    }

    if ((pMemoryManager->overrideMaxContextSizeRsvdMemory > 0) && (pMemoryManager->overrideMaxContextSizeRsvdMemory <= size))   
    {
        NV_PRINTF(LEVEL_ERROR, "Max context size set from %llu MB to %llu MB\n", size/1024/1024, pMemoryManager->overrideMaxContextSizeRsvdMemory/1024/1024);
        size = pMemoryManager->overrideMaxContextSizeRsvdMemory;
    }

    return size;
}
