diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-12 10:40:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-12 10:40:34 -0700 |
| commit | ac74075e5d525f3e782f88ed8d8b1df35c1497e5 (patch) | |
| tree | 074234df55f014e431d86270f5f7c2e6a8644c29 /drivers/misc | |
| parent | 8b6591fd0ac8b7e8b2873703bc24b71a6f3d2d3e (diff) | |
| parent | 7f5933f81bd85a0bf6a87d65c7327ea048a75e54 (diff) | |
Merge tag 'x86_pasid_for_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 PASID updates from Borislav Petkov:
"Initial support for sharing virtual addresses between the CPU and
devices which doesn't need pinning of pages for DMA anymore.
Add support for the command submission to devices using new x86
instructions like ENQCMD{,S} and MOVDIR64B. In addition, add support
for process address space identifiers (PASIDs) which are referenced by
those command submission instructions along with the handling of the
PASID state on context switch as another extended state.
Work by Fenghua Yu, Ashok Raj, Yu-cheng Yu and Dave Jiang"
* tag 'x86_pasid_for_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/asm: Add an enqcmds() wrapper for the ENQCMDS instruction
x86/asm: Carve out a generic movdir64b() helper for general usage
x86/mmu: Allocate/free a PASID
x86/cpufeatures: Mark ENQCMD as disabled when configured out
mm: Add a pasid member to struct mm_struct
x86/msr-index: Define an IA32_PASID MSR
x86/fpu/xstate: Add supervisor PASID state for ENQCMD
x86/cpufeatures: Enumerate ENQCMD and ENQCMDS instructions
Documentation/x86: Add documentation for SVA (Shared Virtual Addressing)
iommu/vt-d: Change flags type to unsigned int in binding mm
drm, iommu: Change type of pasid to u32
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/uacce/uacce.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/misc/uacce/uacce.c b/drivers/misc/uacce/uacce.c index a5b8dab80c76..4cb7a5b19467 100644 --- a/drivers/misc/uacce/uacce.c +++ b/drivers/misc/uacce/uacce.c @@ -93,7 +93,7 @@ static long uacce_fops_compat_ioctl(struct file *filep, static int uacce_bind_queue(struct uacce_device *uacce, struct uacce_queue *q) { - int pasid; + u32 pasid; struct iommu_sva *handle; if (!(uacce->flags & UACCE_DEV_SVA)) |