blob: d3c3d3ab72255060ae2cbad0d9187e990e92c59c [file] [log] [blame]
# SPDX-License-Identifier: MIT
#
# Heterogeneous system architecture configuration
#
config HSA_AMD
bool "HSA kernel driver for AMD GPU devices"
depends on DRM_AMDGPU && (X86_64 || ARM64 || PPC64)
select HMM_MIRROR
select MMU_NOTIFIER
select DRM_AMDGPU_USERPTR
help
Enable this if you want to use HSA features on AMD GPU devices.
config HSA_AMD_SVM
bool "Enable HMM-based shared virtual memory manager"
depends on HSA_AMD && DEVICE_PRIVATE
default y
select HMM_MIRROR
select MMU_NOTIFIER
help
Enable this to use unified memory and managed memory in HIP. This
memory manager supports two modes of operation. One based on
preemptions and one based on page faults. To enable page fault
based memory management on most GFXv9 GPUs, set the module
parameter amdgpu.noretry=0.
config HSA_AMD_P2P
bool "HSA kernel driver support for peer-to-peer for AMD GPU devices"
depends on HSA_AMD && PCI_P2PDMA && DMABUF_MOVE_NOTIFY
help
Enable peer-to-peer (P2P) communication between AMD GPUs over
the PCIe bus. This can improve performance of multi-GPU compute
applications and libraries by enabling GPUs to access data directly
in peer GPUs' memory without intermediate copies in system memory.
This P2P feature is only enabled on compatible chipsets, and between
GPUs with large memory BARs that expose the entire VRAM in PCIe bus
address space within the physical address limits of the GPUs.