X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=Documentation%2Fx86_64%2Fboot-options.txt;h=dbdcaf68e3ea382304784bf66fce502216f1d1f1;hb=2685b267bce34c9b66626cb11664509c32a761a5;hp=6da24e7a56cba01c9b7af0a0e1c894667a614d75;hpb=5b84b6fa9b96d1598eb77196f9d8b3e62efac647;p=mv-sheeva.git

diff --git a/Documentation/x86_64/boot-options.txt b/Documentation/x86_64/boot-options.txt
index 6da24e7a56c..dbdcaf68e3e 100644
--- a/Documentation/x86_64/boot-options.txt
+++ b/Documentation/x86_64/boot-options.txt
@@ -52,10 +52,6 @@ APICs
 		 apicmaintimer. Useful when your PIT timer is totally
 		 broken.
 
-   disable_8254_timer / enable_8254_timer
-		 Enable interrupt 0 timer routing over the 8254 in addition to over
-	         the IO-APIC. The kernel tries to set a sensible default.
-
 Early Console
 
    syntax: earlyprintk=vga
@@ -109,7 +105,7 @@ Idle loop
 Rebooting
 
    reboot=b[ios] | t[riple] | k[bd] [, [w]arm | [c]old]
-   bios	  Use the CPU reboto vector for warm reset
+   bios	  Use the CPU reboot vector for warm reset
    warm   Don't set the cold reboot flag
    cold   Set the cold reboot flag
    triple Force a triple fault (init)
@@ -183,7 +179,7 @@ PCI
 IOMMU
 
  iommu=[size][,noagp][,off][,force][,noforce][,leak][,memaper[=order]][,merge]
-         [,forcesac][,fullflush][,nomerge][,noaperture]
+         [,forcesac][,fullflush][,nomerge][,noaperture][,calgary]
    size  set size of iommu (in bytes)
    noagp don't initialize the AGP driver and use full aperture.
    off   don't use the IOMMU
@@ -199,6 +195,12 @@ IOMMU
    allowed  overwrite iommu off workarounds for specific chipsets.
    soft	 Use software bounce buffering (default for Intel machines)
    noaperture Don't touch the aperture for AGP.
+   allowdac Allow DMA >4GB
+	    When off all DMA over >4GB is forced through an IOMMU or bounce
+	    buffering.
+   nodac    Forbid DMA >4GB
+   panic    Always panic when IOMMU overflows
+   calgary  Use the Calgary IOMMU if it is available
 
   swiotlb=pages[,force]
 
@@ -245,6 +247,13 @@ Debugging
 		newfallback: use new unwinder but fall back to old if it gets
 			stuck (default)
 
+  call_trace=[old|both|newfallback|new]
+		old: use old inexact backtracer
+		new: use new exact dwarf2 unwinder
+ 		both: print entries from both
+		newfallback: use new unwinder but fall back to old if it gets
+			stuck (default)
+
 Misc
 
   noreplacement  Don't replace instructions with more appropriate ones