Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / arch / cris / arch-v10 / kernel / entry.S

diff --git a/arch/cris/arch-v10/kernel/entry.S b/arch/cris/arch-v10/kernel/entry.S
index 1bc44f4..c808005 100644 (file)
--- a/arch/cris/arch-v10/kernel/entry.S
+++ b/arch/cris/arch-v10/kernel/entry.S
@@ -1,4 +1,4 @@
-/* $Id: entry.S,v 1.23 2004/10/19 13:07:37 starvik Exp $
+/* $Id: entry.S,v 1.28 2005/06/20 05:06:30 starvik Exp $
  *
  *  linux/arch/cris/entry.S
  *
@@ -7,6 +7,22 @@
  *  Authors:   Bjorn Wesen (bjornw@axis.com)
  *
  *  $Log: entry.S,v $
+ *  Revision 1.28  2005/06/20 05:06:30  starvik
+ *  Remove unnecessary diff to kernel.org tree
+ *
+ *  Revision 1.27  2005/03/04 08:16:16  starvik
+ *  Merge of Linux 2.6.11.
+ *
+ *  Revision 1.26  2005/01/11 13:49:47  starvik
+ *  Added NMI handler.
+ *
+ *  Revision 1.25  2004/12/27 11:18:32  starvik
+ *  Merge of Linux 2.6.10 (not functional yet).
+ *
+ *  Revision 1.24  2004/12/22 10:41:23  starvik
+ *  Updates to make v10 compile with the latest SMP aware generic code (even
+ *  though v10 will never have SMP).
+ *
  *  Revision 1.23  2004/10/19 13:07:37  starvik
  *  Merge of Linux 2.6.9
  *
@@ -254,7 +270,7 @@
 #include <asm/arch/sv_addr_ag.h>
 #include <asm/errno.h>
 #include <asm/thread_info.h>
-#include <asm/arch/offset.h>
+#include <asm/asm-offsets.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
 
@@ -279,6 +295,7 @@
 #ifdef CONFIG_PREEMPT  
        ; Check if preemptive kernel scheduling should be done
 _resume_kernel:
+       di
        ; Load current task struct
        movs.w  -8192, $r0      ;  THREAD_SIZE = 8192
        and.d   $sp, $r0
@@ -291,12 +308,7 @@ _need_resched:
        bpl     _Rexit
        nop
        ; Ok, lets's do some preemptive kernel scheduling
-       move.d  PREEMPT_ACTIVE, $r10
-       move.d  $r10, [$r0+TI_preempt_count] ; Mark as active
-       ei
-       jsr     schedule
-       clear.d [$r0+TI_preempt_count] ;  Mark as inactive
-       di
+       jsr     preempt_schedule_irq
        ; Load new task struct
        movs.w  -8192, $r0      ;  THREAD_SIZE = 8192
        and.d   $sp, $r0
@@ -590,15 +602,15 @@ mmu_bus_fault:
        move.d  $r0, [$sp+16]
 1:     btstq   12, $r1            ; Refill?
        bpl     2f
-       lsrq    PMD_SHIFT, $r1     ; Get PMD index into PGD (bit 24-31)
-       move.d  [current_pgd], $r0 ; PGD for the current process
+       lsrq    24, $r1     ; Get PGD index (bit 24-31)
+       move.d  [per_cpu__current_pgd], $r0 ; PGD for the current process
        move.d  [$r0+$r1.d], $r0   ; Get PMD
        beq     2f
        nop
        and.w   PAGE_MASK, $r0     ; Remove PMD flags
        move.d  [R_MMU_CAUSE], $r1
        lsrq    PAGE_SHIFT, $r1
-       and.d   0x7ff, $r1         ; Get PTE index into PMD (bit 13-24)
+       and.d   0x7ff, $r1         ; Get PTE index into PGD (bit 13-23)
        move.d  [$r0+$r1.d], $r1   ; Get PTE
        beq     2f
        nop
@@ -656,11 +668,6 @@ hwbreakpoint:
        nop
        
 IRQ1_interrupt:
-
-#if defined(CONFIG_ETRAX_WATCHDOG) && !defined(CONFIG_SVINTO_SIM)
-;; If we receive a watchdog interrupt while it is not expected, then set
-;; up a canonical frame and dump register contents before dying.
-
        ;; this prologue MUST match the one in irq.h and the struct in ptregs.h!!!
        move    $brp,[$sp=$sp-16]; instruction pointer and room for a fake SBFS frame
        push    $srp
@@ -672,9 +679,16 @@ IRQ1_interrupt:
        push    $r10            ; push orig_r10
        clear.d [$sp=$sp-4]     ; frametype == 0, normal frame
 
-;; We don't check that we actually were bit by the watchdog as opposed to
-;; an external NMI, since there is currently no handler for external NMI.
-
+       move.d  [R_IRQ_MASK0_RD], $r1 ; External NMI or watchdog?
+       and.d   0x80000000, $r1
+       beq     wdog
+       move.d  $sp, $r10
+       jsr     handle_nmi
+       setf m                  ; Enable NMI again
+       retb                    ; Return from NMI
+       nop
+wdog:
+#if defined(CONFIG_ETRAX_WATCHDOG) && !defined(CONFIG_SVINTO_SIM)
 ;; Check if we're waiting for reset to happen, as signalled by
 ;; hard_reset_now setting cause_of_death to a magic value.  If so, just
 ;; get stuck until reset happens.
@@ -1118,6 +1132,10 @@ sys_call_table:
        .long sys_mq_getsetattr
        .long sys_ni_syscall            /* reserved for kexec */
        .long sys_waitid
+       .long sys_ni_syscall            /* 285 */ /* available */
+       .long sys_add_key
+       .long sys_request_key
+       .long sys_keyctl
 
         /*
          * NOTE!! This doesn't have to be exact - we just have