diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/Kconfig')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/Kconfig | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/Kconfig b/drivers/gpu/drm/amd/amdkfd/Kconfig index 8cc0a76ddf9f..16e12c9913f9 100644 --- a/drivers/gpu/drm/amd/amdkfd/Kconfig +++ b/drivers/gpu/drm/amd/amdkfd/Kconfig @@ -5,8 +5,7 @@ config HSA_AMD bool "HSA kernel driver for AMD GPU devices" - depends on DRM_AMDGPU && (X86_64 || ARM64 || PPC64) - imply AMD_IOMMU_V2 if X86_64 + depends on DRM_AMDGPU && (X86_64 || ARM64 || PPC64 || (RISCV && 64BIT) || (LOONGARCH && 64BIT)) select HMM_MIRROR select MMU_NOTIFIER select DRM_AMDGPU_USERPTR @@ -25,3 +24,17 @@ config HSA_AMD_SVM 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. + |