svn commit: r347501 - head/sys/amd64/amd64

[Mateusz Guzik]

Author: mjg
Date: Sun May 12 06:34:58 2019
New Revision: 347501
URL: https://svnweb.freebsd.org/changeset/base/347501

Log:
  amd64: stop re-reading curpc in suword
  
  Plugs re-reads missed in r341719
  
  Sponsored by:	The FreeBSD Foundation

Modified:
  head/sys/amd64/amd64/support.S

Modified: head/sys/amd64/amd64/support.S
==============================================================================
--- head/sys/amd64/amd64/support.S	Sun May 12 06:32:46 2019	(r347500)
+++ head/sys/amd64/amd64/support.S	Sun May 12 06:34:58 2019	(r347501)
@@ -1083,7 +1083,6 @@ ENTRY(suword_nosmap)
 
 	movq	%rsi,(%rdi)
 	xorl	%eax,%eax
-	movq	PCPU(CURPCB),%rcx
 	movq	%rax,PCB_ONFAULT(%rcx)
 	POP_FRAME_POINTER
 	ret
@@ -1102,7 +1101,6 @@ ENTRY(suword_smap)
 	movq	%rsi,(%rdi)
 	clac
 	xorl	%eax,%eax
-	movq	PCPU(CURPCB),%rcx
 	movq	%rax,PCB_ONFAULT(%rcx)
 	POP_FRAME_POINTER
 	ret
@@ -1119,7 +1117,6 @@ ENTRY(suword32_nosmap)
 
 	movl	%esi,(%rdi)
 	xorl	%eax,%eax
-	movq	PCPU(CURPCB),%rcx
 	movq	%rax,PCB_ONFAULT(%rcx)
 	POP_FRAME_POINTER
 	ret
@@ -1138,7 +1135,6 @@ ENTRY(suword32_smap)
 	movl	%esi,(%rdi)
 	clac
 	xorl	%eax,%eax
-	movq	PCPU(CURPCB),%rcx
 	movq	%rax,PCB_ONFAULT(%rcx)
 	POP_FRAME_POINTER
 	ret