config DRM_AMDGPU_USERPTR
bool "Always enable userptr write support"
depends on DRM_AMDGPU
- depends on HMM_MIRROR
+ depends on MMU
+ select HMM_MIRROR
+ select MMU_NOTIFIER
help
This option selects CONFIG_HMM and CONFIG_HMM_MIRROR if it
isn't already selected to enabled full userptr support.
bool "(EXPERIMENTAL) Enable SVM (Shared Virtual Memory) support"
depends on DEVICE_PRIVATE
depends on DRM_NOUVEAU
- depends on HMM_MIRROR
+ depends on MMU
depends on STAGING
+ select HMM_MIRROR
select MIGRATE_VMA_HELPER
+ select MMU_NOTIFIER
default n
help
Say Y here if you want to enable experimental support for
config DEV_PAGEMAP_OPS
bool
+#
+# Helpers to mirror range of the CPU page tables of a process into device page
+# tables.
+#
config HMM_MIRROR
- bool "HMM mirror CPU page table into a device page table"
+ bool
depends on MMU
- select MMU_NOTIFIER
- help
- Select HMM_MIRROR if you want to mirror range of the CPU page table of a
- process into a device page table. Here, mirror means "keep synchronized".
- Prerequisites: the device must provide the ability to write-protect its
- page tables (at PAGE_SIZE granularity), and must be able to recover from
- the resulting potential page faults.
+ depends on MMU_NOTIFIER
config DEVICE_PRIVATE
bool "Unaddressable device memory (GPU memory, ...)"