Russ Anderson (on Mon, 18 Sep 2006 16:18:28 -0500 (CDT)) wrote: >[patch] ar.fpsr not set on MCA/INIT kernel entry >Index: test/arch/ia64/kernel/mca_asm.S >=================================================================== >--- test.orig/arch/ia64/kernel/mca_asm.S 2006-09-18 16:10:06.058062990 -0500 >+++ test/arch/ia64/kernel/mca_asm.S 2006-09-18 16:10:29.628971888 -0500 >@@ -1063,7 +1063,9 @@ ia64_set_kernel_registers: > ;; > mov IA64_KR(CURRENT_STACK)=r16 > or r21=r20,r21 // construct PA | page properties >+ movl r17=FPSR_DEFAULT > ;; >+ mov.m ar.fpsr=r17 // set ar.fpsr to kernel default value > mov cr.itir=r18 > mov cr.ifa=r13 > mov r20=IA64_TR_CURRENT_STACK Any particular reason to place those instructions in the middle of the code that wires IA64_TR_CURRENT_STACK? I tried to keep the tr code as standard as possible, to make it easier to change in future. This code is not performance sensitive, readability counts more than a couple of unused slots here. - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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