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8720fe2167
The NVMAP configs NVMAP_CONFIG_LOADABLE_MODULE and NVMAP_CONFIG_UPSTREAM_KERNEL are no longer needed or used because the NVMAP driver is now always compiled as an out-of-tree driver. Remove these legacy configs. Bug 4074863 Change-Id: I4998ab9b2f0ab660a07aab262074c15db913c298 Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3136417 GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com> Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: Ketan Patil <ketanp@nvidia.com>
186 lines
6.9 KiB
Makefile
186 lines
6.9 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0-only
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# Copyright (c) 2021-2024, NVIDIA CORPORATION. All rights reserved.
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# This file consists of 4 sections
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# Section 1: This section is for doing prerequisite check.
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# It checkes whether the prereq configs are enabled or not.
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# If not, return error.
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#
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# Section 2: This section declare all configs with the default values
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# just similar to Kconfig
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#
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# Section 3: This section consists of checks for kernel versions and
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# actual values of these configs for corresponding kernel
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# version. This is the place where we can enable/disable or
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# set values to configs as per kernel version.
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#
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# Section 4: This section creates ccflags based upon the values specified
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# in the section 2. These ccflags would be actually used in the
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# source files. This section also takes care of the dependencies
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# between the configs.
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#
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################################################################################
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ifeq ($(CONFIG_ARCH_TEGRA), y)
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# Section 1
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# For dma_buf support CONFIG_DMA_SHARED_BUFFER needs be enabled
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ifneq ($(CONFIG_DMA_SHARED_BUFFER),y)
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$(error CONFIG_DMA_SHARED_BUFFER is not set)
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endif
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# Check if CONFIG_ARCH_HAS_PMEM_API enabled for OOT/Kstable kernel
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# CONFIG_ARCH_HAS_PMEM_API is needed for arch_invalidate_pmem
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ifneq ($(CONFIG_ARCH_HAS_PMEM_API),y)
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$(error CONFIG_ARCH_HAS_PMEM_API is not set)
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endif
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################################################################################
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# Section 2
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# This config is used to include the memory management driver for the
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# Tegra GPU, multimedia and display subsystems
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NVMAP_CONFIG := y
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# Config to reduce the alloction overhead, which is significant
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# for uncached, writecombine and inner cacheable memories as it
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# involves changing page attributes during every allocation per page
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# and flushing cache. Alloc time is reduced by allcoating the pages
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# ahead and keeping them aside. The reserved pages would be released
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# when system is low on memory and acquired back during release of
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# memory.
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NVMAP_CONFIG_PAGE_POOLS := y
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# Config to include some debugging info in the page pools. This
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# adds a bit of unnecessary overhead so only enable this is you
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# suspect there is an issue with the nvmap page pools.
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NVMAP_CONFIG_PAGE_POOL_DEBUG := n
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# Config for page pool size in pages
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NVMAP_CONFIG_PAGE_POOL_SIZE := 0x0
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# Config for FD number to start allocation from
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# NvMap handles are represented with FD's in the user processes.
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# To avoid Linux FD usage limitations, NvMap allocates FD starting
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# from this number.
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NVMAP_CONFIG_FD_START := 0x400
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# Config for enabling deferred FD recycle
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# A released nvmap handle would release memory and FD. This FD
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# can be reused immediately for subsequent nvmap allocation req in
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# the same process. Any buggy code in client process that continues to
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# use FD of released allocation would continue to use new allocation
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# and can lead to undesired consequences, which can be hard to debug.
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# Enabling this option would defer recycling FD for longer time and
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# allows debugging incorrect FD references by clients by returning errors
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# for the accesses that occur after handle/FD release.
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NVMAP_CONFIG_DEFER_FD_RECYCLE := n
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# Config for FD number to start free FD recycle
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# Once last allocated FD reaches this number, allocation of subsequent
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# FD's start from NVMAP_START_FD.
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NVMAP_CONFIG_DEFER_FD_RECYCLE_MAX_FD := 0x8000
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# Config for enabling nvmap mapping with SciIpc secure buffer sharing
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# Enable nvmap mapping with SciIpc secure buffer sharing.
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# Supports nvmap ioctls to get Unique SciIpcId and attach
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# it with nvmap_handle.
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# Suppports getting nvmap_handle from SciIpcId passed via ioctl.
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NVMAP_CONFIG_SCIIPC := n
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# Config for enabling PROCRANK functionality
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NVMAP_CONFIG_PROCRANK := y
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# Config for enabling few debugfs which would impact the NvMap performance
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# There are few debugfs which would impact NvMap performance.
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# Disable this when perf regression is observed.
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NVMAP_CONFIG_DEBUG_MAPS := n
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# This is fallback option to support handle as FD
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# To support handle as ID, set this to n
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# This config is useful to debug issue if its due to handle as ID or FD
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NVMAP_CONFIG_HANDLE_AS_FD := n
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# Config for enabling the cache flush at buffer allocation time from carveout
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NVMAP_CONFIG_CACHE_FLUSH_AT_ALLOC := y
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# Config for enabling the dma-buf deferred unmapping
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NVMAP_CONFIG_DMABUF_DEFERRED_UNMAPPING := n
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#Config for enabling nvmap_register_vidmem_carveout
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NVMAP_CONFIG_VIDMEM_CARVEOUT := n
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################################################################################
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# Section 3
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# Enable/Disable configs based upon the kernel version
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# Specify the values which are different from the default values
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NVMAP_CONFIG_PROCRANK := n
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ifneq ($(NVMAP_CONFIG_HANDLE_AS_FD),y)
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NVMAP_CONFIG_HANDLE_AS_ID := y
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NVMAP_CONFIG_FD_START := 0x0
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endif
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NVMAP_CONFIG_SCIIPC := y
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ifeq ($(CONFIG_DMABUF_DEFERRED_UNMAPPING),y)
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NVMAP_CONFIG_DMABUF_DEFERRED_UNMAPPING := y
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endif
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################################################################################
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# Section 4
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# This section creates ccflags based upon the values specified
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# in the section 2. These ccflags would be actually used in the
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# source files.
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ifeq ($(NVMAP_CONFIG),y)
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# All other flags make sense only when NVMAP_CONFIG is enabled
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ccflags-y += -DNVMAP_CONFIG
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ifeq ($(NVMAP_CONFIG_PAGE_POOLS),y)
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ccflags-y += -DNVMAP_CONFIG_PAGE_POOLS
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# NVMAP_CONFIG_PAGE_POOL_DEBUG depends upon NVMAP_CONFIG_PAGE_POOLS
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ifeq ($(NVMAP_CONFIG_PAGE_POOL_DEBUG),y)
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ccflags-y += -DNVMAP_CONFIG_PAGE_POOL_DEBUG
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endif #NVMAP_CONFIG_PAGE_POOL_DEBUG
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# NVMAP_CONFIG_PAGE_POOL_SIZE depends upon NVMAP_CONFIG_PAGE_POOLS
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ifdef NVMAP_CONFIG_PAGE_POOL_SIZE
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ccflags-y += -DNVMAP_CONFIG_PAGE_POOL_SIZE=${NVMAP_CONFIG_PAGE_POOL_SIZE}
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endif #NVMAP_CONFIG_PAGE_POOL_SIZE
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endif #NVMAP_CONFIG_PAGE_POOLS
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ifdef NVMAP_CONFIG_FD_START
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ccflags-y += -DNVMAP_CONFIG_FD_START=${NVMAP_CONFIG_FD_START}
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endif #NVMAP_CONFIG_FD_START
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ifeq ($(NVMAP_CONFIG_DEFER_FD_RECYCLE),y)
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ccflags-y += -DNVMAP_CONFIG_DEFER_FD_RECYCLE
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# NVMAP_CONFIG_DEFER_FD_RECYCLE_MAX_FD depends upon CONFIG_NVMAP_DEFER_FD_RECYCLE
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ifdef NVMAP_CONFIG_DEFER_FD_RECYCLE_MAX_FD
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ccflags-y += -DNVMAP_CONFIG_DEFER_FD_RECYCLE_MAX_FD=${NVMAP_CONFIG_DEFER_FD_RECYCLE_MAX_FD}
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endif #NVMAP_CONFIG_DEFER_FD_RECYCLE_MAX_FD
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endif #NVMAP_CONFIG_DEFER_FD_RECYCLE
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ifeq ($(NVMAP_CONFIG_SCIIPC),y)
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ccflags-y += -DNVMAP_CONFIG_SCIIPC
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endif #NVMAP_CONFIG_SCIIPC
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ifeq ($(NVMAP_CONFIG_DMABUF_DEFERRED_UNMAPPING),y)
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ccflags-y += -DNVMAP_DEFERRED_DMABUF_UNMAP
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endif
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ifeq ($(NVMAP_CONFIG_PROCRANK),y)
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ccflags-y += -DNVMAP_CONFIG_PROCRANK
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endif #NVMAP_CONFIG_PROCRANK
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ifeq ($(NVMAP_CONFIG_DEBUG_MAPS),y)
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ccflags-y += -DNVMAP_CONFIG_DEBUG_MAPS
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endif #NVMAP_CONFIG_DEBUG_MAPS
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ifeq ($(NVMAP_CONFIG_HANDLE_AS_ID),y)
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ccflags-y += -DNVMAP_CONFIG_HANDLE_AS_ID
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endif #NVMAP_CONFIG_HANDLE_AS_ID
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ifeq ($(NVMAP_CONFIG_CACHE_FLUSH_AT_ALLOC),y)
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ccflags-y += -DNVMAP_CONFIG_CACHE_FLUSH_AT_ALLOC
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endif #NVMAP_CONFIG_CACHE_FLUSH_AT_ALLOC
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endif #NVMAP_CONFIG
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endif #CONFIG_ARCH_TEGRA
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