From: Jason Gunthorpe <jgg@xxxxxxxxxxxx> There is no reason for a user to select this or not directly - it should be selected by drivers that are going to use the feature, similar to how CONFIG_HMM_MIRROR works. Currently all drivers provide a feature kconfig that will disable use of DEVICE_PRIVATE in that driver, allowing users to avoid enabling this if they don't want the overhead. Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx> --- arch/powerpc/Kconfig | 2 +- drivers/gpu/drm/nouveau/Kconfig | 2 +- mm/Kconfig | 7 +------ 3 files changed, 3 insertions(+), 8 deletions(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 924c541a926008..8de52aefdc74cc 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -455,7 +455,7 @@ config PPC_TRANSACTIONAL_MEM config PPC_UV bool "Ultravisor support" depends on KVM_BOOK3S_HV_POSSIBLE - depends on DEVICE_PRIVATE + select DEVICE_PRIVATE default n help This option paravirtualizes the kernel to run in POWER platforms that diff --git a/drivers/gpu/drm/nouveau/Kconfig b/drivers/gpu/drm/nouveau/Kconfig index d6e4ae1ef7053a..af5793f3e7c2cf 100644 --- a/drivers/gpu/drm/nouveau/Kconfig +++ b/drivers/gpu/drm/nouveau/Kconfig @@ -86,10 +86,10 @@ config DRM_NOUVEAU_BACKLIGHT config DRM_NOUVEAU_SVM bool "(EXPERIMENTAL) Enable SVM (Shared Virtual Memory) support" - depends on DEVICE_PRIVATE depends on DRM_NOUVEAU depends on MMU depends on STAGING + select DEVICE_PRIVATE select HMM_MIRROR select MMU_NOTIFIER default n diff --git a/mm/Kconfig b/mm/Kconfig index c1acc34c1c358c..7ca36bf5f5058e 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -805,15 +805,10 @@ config HMM_MIRROR depends on MMU config DEVICE_PRIVATE - bool "Unaddressable device memory (GPU memory, ...)" + bool depends on ZONE_DEVICE select DEV_PAGEMAP_OPS - help - Allows creation of struct pages to represent unaddressable device - memory; i.e., memory that is only accessible from the device (or - group of devices). You likely also want to select HMM_MIRROR. - config FRAME_VECTOR bool -- 2.26.0
