From caf6ab908526b2f231e1cf708d284cef32149a97 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Fri, 19 Mar 2010 12:50:35 +0100 Subject: [PATCH] --- yaml --- r: 189284 b: refs/heads/master c: bd1637d63e82aaf732ffbe907ba887fa12e82df4 h: refs/heads/master v: v3 --- [refs] | 2 +- .../microblaze/kernel/hw_exception_handler.S | 18 +++--------------- 2 files changed, 4 insertions(+), 16 deletions(-) diff --git a/[refs] b/[refs] index be738e271104..98db095b84cb 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: b175bcfe31cba846d8bfa35a3a4820667f7af383 +refs/heads/master: bd1637d63e82aaf732ffbe907ba887fa12e82df4 diff --git a/trunk/arch/microblaze/kernel/hw_exception_handler.S b/trunk/arch/microblaze/kernel/hw_exception_handler.S index a652addb9321..5d8c3de58b0c 100644 --- a/trunk/arch/microblaze/kernel/hw_exception_handler.S +++ b/trunk/arch/microblaze/kernel/hw_exception_handler.S @@ -562,20 +562,16 @@ ex_handler_done: */ mfs r11, rpid nop - mfs r3, rear /* Get faulting address */ - nop /* If we are faulting a kernel address, we have to use the * kernel page tables. */ - ori r4, r0, CONFIG_KERNEL_START - cmpu r4, r3, r4 - bgti r4, ex3 + ori r5, r0, CONFIG_KERNEL_START + cmpu r5, r3, r5 + bgti r5, ex3 /* First, check if it was a zone fault (which means a user * tried to access a kernel or read-protected page - always * a SEGV). All other faults here must be stores, so no * need to check ESR_S as well. */ - mfs r4, resr - nop andi r4, r4, 0x800 /* ESR_Z - zone protection */ bnei r4, ex2 @@ -590,8 +586,6 @@ ex_handler_done: * tried to access a kernel or read-protected page - always * a SEGV). All other faults here must be stores, so no * need to check ESR_S as well. */ - mfs r4, resr - nop andi r4, r4, 0x800 /* ESR_Z */ bnei r4, ex2 /* get current task address */ @@ -666,8 +660,6 @@ ex_handler_done: * R3 = ESR */ - mfs r3, rear /* Get faulting address */ - nop RESTORE_STATE; bri page_fault_instr_trap @@ -682,8 +674,6 @@ ex_handler_done: */ mfs r11, rpid nop - mfs r3, rear /* Get faulting address */ - nop /* If we are faulting a kernel address, we have to use the * kernel page tables. */ @@ -754,8 +744,6 @@ ex_handler_done: */ mfs r11, rpid nop - mfs r3, rear /* Get faulting address */ - nop /* If we are faulting a kernel address, we have to use the * kernel page tables.