X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=arch%2Fparisc%2Fkernel%2Fsyscall.S;h=9670a89c77fe480255ce79cf5a8705434e06d43e;hp=b29b76b42bb70cd4f4df3892016665afc744874d;hb=55b4d6a52195a8f277ffddf755ddaff359878f41;hpb=dad2ad82c5f058367df79de022bd12d36afcd065

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index b29b76b42bb7..9670a89c77fe 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -29,18 +29,6 @@
 	.level		1.1
 #endif
 
-#ifndef CONFIG_64BIT
-	.macro fixup_branch,lbl
-	b	    \lbl
-	.endm
-#else
-	.macro fixup_branch,lbl
-	ldil	    L%\lbl, %r1
-	ldo	    R%\lbl(%r1), %r1
-	bv,n        %r0(%r1)
-	.endm
-#endif
-
 	.text
 
 	.import syscall_exit,code
@@ -55,7 +43,7 @@
 	 * pointers.
 	 */
 
-	.align 4096
+	.align ASM_PAGE_SIZE
 linux_gateway_page:
 
         /* ADDRESS 0x00 to 0xb0 = 176 bytes / 4 bytes per insn = 44 insns */
@@ -164,7 +152,7 @@ linux_gateway_entry:
 #endif
 	STREG	%r2,  TASK_PT_GR30(%r1)		/* ... and save it */
 	
-	STREG	%r20, TASK_PT_GR20(%r1)
+	STREG	%r20, TASK_PT_GR20(%r1)		/* Syscall number */
 	STREG	%r21, TASK_PT_GR21(%r1)
 	STREG	%r22, TASK_PT_GR22(%r1)
 	STREG	%r23, TASK_PT_GR23(%r1)		/* 4th argument */
@@ -527,6 +515,7 @@ lws_compare_and_swap:
 		We *must* giveup this call and fail.
 	*/
 	ldw	4(%sr2,%r20), %r28			/* Load thread register */
+	/* WARNING: If cr27 cycles to the same value we have problems */
 	mfctl	%cr27, %r21				/* Get current thread register */
 	cmpb,<>,n	%r21, %r28, cas_lock		/* Called recursive? */
 	b	lws_exit				/* Return error! */
@@ -540,7 +529,7 @@ cas_nocontend:
 # endif
 /* ENABLE_LWS_DEBUG */
 
-	ldcw	0(%sr2,%r20), %r28			/* Try to acquire the lock */
+	LDCW	0(%sr2,%r20), %r28			/* Try to acquire the lock */
 	cmpb,<>,n	%r0, %r28, cas_action		/* Did we get it? */
 cas_wouldblock:
 	ldo	2(%r0), %r28				/* 2nd case */
@@ -631,7 +620,7 @@ cas_action:
 end_compare_and_swap:
 
 	/* Make sure nothing else is placed on this page */
-	.align 4096
+	.align ASM_PAGE_SIZE
 	.export end_linux_gateway_page
 end_linux_gateway_page:
 
@@ -649,7 +638,9 @@ end_linux_gateway_page:
 #define LWS_ENTRY(_name_) .word  (lws_##_name_ - linux_gateway_page)
 #endif
 
-	.align 4096
+	.section .rodata,"a"
+
+	.align ASM_PAGE_SIZE
 	/* Light-weight-syscall table */
 	/* Start of lws table. */
 	.export lws_table
@@ -659,14 +650,14 @@ lws_table:
 	LWS_ENTRY(compare_and_swap64)	/* 1 - ELF64 Atomic compare and swap */
 	/* End of lws table */
 
-	.align 4096
+	.align ASM_PAGE_SIZE
 	.export sys_call_table
 .Lsys_call_table:
 sys_call_table:
 #include "syscall_table.S"
 
 #ifdef CONFIG_64BIT
-	.align 4096
+	.align ASM_PAGE_SIZE
 	.export sys_call_table64
 .Lsys_call_table64:
 sys_call_table64: