[v5,6/6] mm: Deprecate pasid field

Message ID 20230925023813.575016-7-tina.zhang@intel.com
State New
Headers
Series Share sva domains with all devices bound to a mm |

Commit Message

Zhang, Tina Sept. 25, 2023, 2:38 a.m. UTC
  Drop the pasid field, as all the information needed for sva domain
management has been moved to the newly added iommu_mm field.

Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
---
 include/linux/mm_types.h | 1 -
 mm/init-mm.c             | 3 ---
 2 files changed, 4 deletions(-)
  

Comments

Jason Gunthorpe Oct. 5, 2023, 6:50 p.m. UTC | #1
On Mon, Sep 25, 2023 at 10:38:13AM +0800, Tina Zhang wrote:
> Drop the pasid field, as all the information needed for sva domain
> management has been moved to the newly added iommu_mm field.
> 
> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
> Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
> Signed-off-by: Tina Zhang <tina.zhang@intel.com>
> ---
>  include/linux/mm_types.h | 1 -
>  mm/init-mm.c             | 3 ---
>  2 files changed, 4 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>

Jason
  

Patch

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 9f4efed85f74..37f049c4b059 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -883,7 +883,6 @@  struct mm_struct {
 		struct work_struct async_put_work;
 
 #ifdef CONFIG_IOMMU_SVA
-		u32 pasid;
 		struct iommu_mm_data *iommu_mm;
 #endif
 #ifdef CONFIG_KSM
diff --git a/mm/init-mm.c b/mm/init-mm.c
index cfd367822cdd..24c809379274 100644
--- a/mm/init-mm.c
+++ b/mm/init-mm.c
@@ -44,9 +44,6 @@  struct mm_struct init_mm = {
 #endif
 	.user_ns	= &init_user_ns,
 	.cpu_bitmap	= CPU_BITS_NONE,
-#ifdef CONFIG_IOMMU_SVA
-	.pasid		= IOMMU_PASID_INVALID,
-#endif
 	INIT_MM_CONTEXT(init_mm)
 };