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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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79f8511c83
Add SWIOTLB config option and related files to Netlogic platform. Some XLP SoC components like the SD/MMC interface cannot do DMA beyond 32-bit physical address. The SD/MMC driver can use memory outside this range for IO, to support this we have to add bounce buffers implemented by SWIOTLB. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Cc: Ganesan Ramalingam <ganesanr@broadcom.com> Patchwork: https://patchwork.linux-mips.org/patch/5410/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
66 lines
1.4 KiB
Plaintext
66 lines
1.4 KiB
Plaintext
if NLM_XLP_BOARD || NLM_XLR_BOARD
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if NLM_XLP_BOARD
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config DT_XLP_EVP
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bool "Built-in device tree for XLP EVP boards"
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default y
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help
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Add an FDT blob for XLP EVP boards into the kernel.
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This DTB will be used if the firmware does not pass in a DTB
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pointer to the kernel. The corresponding DTS file is at
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arch/mips/netlogic/dts/xlp_evp.dts
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config DT_XLP_SVP
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bool "Built-in device tree for XLP SVP boards"
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default y
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help
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Add an FDT blob for XLP VP boards into the kernel.
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This DTB will be used if the firmware does not pass in a DTB
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pointer to the kernel. The corresponding DTS file is at
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arch/mips/netlogic/dts/xlp_svp.dts
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config NLM_MULTINODE
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bool "Support for multi-chip boards"
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depends on NLM_XLP_BOARD
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default n
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help
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Add support for boards with 2 or 4 XLPs connected over ICI.
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if NLM_MULTINODE
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choice
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prompt "Number of XLPs on the board"
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default NLM_MULTINODE_2
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help
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In the multi-node case, specify the number of SoCs on the board.
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config NLM_MULTINODE_2
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bool "Dual-XLP board"
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help
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Support boards with upto two XLPs connected over ICI.
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config NLM_MULTINODE_4
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bool "Quad-XLP board"
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help
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Support boards with upto four XLPs connected over ICI.
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endchoice
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endif
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endif
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config NLM_COMMON
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bool
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config IOMMU_HELPER
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bool
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config NEED_SG_DMA_LENGTH
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bool
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config SWIOTLB
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def_bool y
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select NEED_SG_DMA_LENGTH
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select IOMMU_HELPER
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endif
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