From 4ab159d2547c26b34a4ff4770598b72660da1461 Mon Sep 17 00:00:00 2001 From: Felix Kuehling Date: Mon, 29 Mar 2021 18:49:12 -0400 Subject: drm/amdkfd: Add CONFIG_HSA_AMD_SVM Control whether to build SVM support into amdgpu with a Kconfig option. This makes it easier to disable it in production kernels if this new feature causes problems in production environments. Use "depends on" instead of "select" for DEVICE_PRIVATE, as is recommended for visible options. Reviewed-by: Philip Yang Signed-off-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdkfd/Kconfig | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm/amd/amdkfd/Kconfig') diff --git a/drivers/gpu/drm/amd/amdkfd/Kconfig b/drivers/gpu/drm/amd/amdkfd/Kconfig index fb8d85716599..8cc0a76ddf9f 100644 --- a/drivers/gpu/drm/amd/amdkfd/Kconfig +++ b/drivers/gpu/drm/amd/amdkfd/Kconfig @@ -8,9 +8,20 @@ config HSA_AMD depends on DRM_AMDGPU && (X86_64 || ARM64 || PPC64) imply AMD_IOMMU_V2 if X86_64 select HMM_MIRROR - select ZONE_DEVICE - select DEVICE_PRIVATE 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. -- cgit