Jason Gunthorpe 8f23f5dba6 iommu: Change kconfig around IOMMU_SVA
Linus suggested that the kconfig here is confusing:

https://lore.kernel.org/all/CAHk-=wgUiAtiszwseM1p2fCJ+sC4XWQ+YN4TanFhUgvUqjr9Xw@mail.gmail.com/

Let's break it into three kconfigs controlling distinct things:

 - CONFIG_IOMMU_MM_DATA controls if the mm_struct has the additional
   fields for the IOMMU. Currently only PASID, but later patches store
   a struct iommu_mm_data *

 - CONFIG_ARCH_HAS_CPU_PASID controls if the arch needs the scheduling bit
   for keeping track of the ENQCMD instruction. x86 will select this if
   IOMMU_SVA is enabled

 - IOMMU_SVA controls if the IOMMU core compiles in the SVA support code
   for iommu driver use and the IOMMU exported API

This way ARM will not enable CONFIG_ARCH_HAS_CPU_PASID

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20231027000525.1278806-2-tina.zhang@intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2023-12-12 10:11:27 +01:00
..
2023-11-15 04:18:31 +01:00
2023-11-15 04:02:25 +01:00
2023-11-03 15:44:25 -10:00
2023-11-08 09:47:52 -08:00
2023-10-30 20:13:17 -10:00
2023-12-12 10:11:27 +01:00
2023-03-24 11:01:29 +01:00
2023-10-19 11:02:48 +02:00
2023-10-04 10:41:56 -07:00
2023-08-30 09:16:56 -07:00
2023-10-09 16:59:47 +10:00
2023-06-28 15:51:08 -07:00
2023-09-19 13:21:33 -07:00
2023-10-18 14:34:15 -07:00
2023-10-30 17:56:53 -10:00
2023-10-04 10:41:57 -07:00
2023-11-01 15:28:33 -10:00
2023-11-01 15:28:33 -10:00
2023-08-15 15:26:17 -07:00
2023-10-11 08:46:01 -07:00