x86/swiotlb: fix param usage in boot-options.rst

Fix the usage of swiotlb param in kernel doc. Signed-off-by: Dongli Zhang <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]>
fracktal · Jun 22, 2022 · 04c14e8 · 04c14e8
1 parent 466298c
commit 04c14e8
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/Documentation/x86/x86_64/boot-options.rst b/Documentation/x86/x86_64/boot-options.rst
@@ -287,11 +287,13 @@ iommu options only relevant to the AMD GART hardware IOMMU:
 iommu options only relevant to the software bounce buffering (SWIOTLB) IOMMU
 implementation:
 
-    swiotlb=<pages>[,force]
-      <pages>
-        Prereserve that many 128K pages for the software IO bounce buffering.
+    swiotlb=<slots>[,force,noforce]
+      <slots>
+        Prereserve that many 2K slots for the software IO bounce buffering.
       force
         Force all IO through the software TLB.
+      noforce
+        Do not initialize the software TLB.
 
 
 Miscellaneous