39 files changed, 162 insertions, 162 deletions

diff --git a/arch/alpha/kernel/core_apecs.c b/arch/alpha/kernel/core_apecs.c
index a27ba12ba35e..ca46b2c24457 100644
--- a/arch/alpha/kernel/core_apecs.c
+++ b/arch/alpha/kernel/core_apecs.c
@@ -387,8 +387,7 @@ apecs_pci_clr_err(void)
 }
 
 void
-apecs_machine_check(unsigned long vector, unsigned long la_ptr,
-                    struct pt_regs * regs)
+apecs_machine_check(unsigned long vector, unsigned long la_ptr)
 {
         struct el_common *mchk_header;
         struct el_apecs_procdata *mchk_procdata;
@@ -412,7 +411,7 @@ apecs_machine_check(unsigned long vector, unsigned long la_ptr,
         wrmces(0x7);            /* reset machine check pending flag */
         mb();
 
-        process_mcheck_info(vector, la_ptr, regs, "APECS",
+        process_mcheck_info(vector, la_ptr, "APECS",
                             (mcheck_expected(0)
                              && (mchk_sysdata->epic_dcsr & 0x0c00UL)));
 }
diff --git a/arch/alpha/kernel/core_cia.c b/arch/alpha/kernel/core_cia.c
index fd563064363c..1d6ee6c985f9 100644
--- a/arch/alpha/kernel/core_cia.c
+++ b/arch/alpha/kernel/core_cia.c
@@ -1192,8 +1192,7 @@ cia_decode_mchk(unsigned long la_ptr)
 }
 
 void
-cia_machine_check(unsigned long vector, unsigned long la_ptr,
-                  struct pt_regs * regs)
+cia_machine_check(unsigned long vector, unsigned long la_ptr)
 {
         int expected;
 
@@ -1208,5 +1207,5 @@ cia_machine_check(unsigned long vector, unsigned long la_ptr,
         expected = mcheck_expected(0);
         if (!expected && vector == 0x660)
                 expected = cia_decode_mchk(la_ptr);
-        process_mcheck_info(vector, la_ptr, regs, "CIA", expected);
+        process_mcheck_info(vector, la_ptr, "CIA", expected);
 }
diff --git a/arch/alpha/kernel/core_lca.c b/arch/alpha/kernel/core_lca.c
index 6a5a9145c676..4843f6ec9f3a 100644
--- a/arch/alpha/kernel/core_lca.c
+++ b/arch/alpha/kernel/core_lca.c
@@ -19,6 +19,7 @@
 #include <linux/tty.h>
 
 #include <asm/ptrace.h>
+#include <asm/irq_regs.h>
 #include <asm/smp.h>
 
 #include "proto.h"
@@ -386,8 +387,7 @@ ioc_error(__u32 stat0, __u32 stat1)
 }
 
 void
-lca_machine_check(unsigned long vector, unsigned long la_ptr,
-                  struct pt_regs *regs)
+lca_machine_check(unsigned long vector, unsigned long la_ptr)
 {
         const char * reason;
         union el_lca el;
@@ -397,7 +397,7 @@ lca_machine_check(unsigned long vector, unsigned long la_ptr,
         wrmces(rdmces());       /* reset machine check pending flag */
 
         printk(KERN_CRIT "LCA machine check: vector=%#lx pc=%#lx code=%#x\n",
-               vector, regs->pc, (unsigned int) el.c->code);
+               vector, get_irq_regs()->pc, (unsigned int) el.c->code);
 
         /*
          * The first quadword after the common header always seems to
diff --git a/arch/alpha/kernel/core_mcpcia.c b/arch/alpha/kernel/core_mcpcia.c
index 28849c894153..8d019071190a 100644
--- a/arch/alpha/kernel/core_mcpcia.c
+++ b/arch/alpha/kernel/core_mcpcia.c
@@ -572,8 +572,7 @@ mcpcia_print_system_area(unsigned long la_ptr)
 }
 
 void
-mcpcia_machine_check(unsigned long vector, unsigned long la_ptr,
-                     struct pt_regs * regs)
+mcpcia_machine_check(unsigned long vector, unsigned long la_ptr)
 {
         struct el_common *mchk_header;
         struct el_MCPCIA_uncorrected_frame_mcheck *mchk_logout;
@@ -610,7 +609,7 @@ mcpcia_machine_check(unsigned long vector, unsigned long la_ptr,
         wrmces(0x7);
         mb();
 
-        process_mcheck_info(vector, la_ptr, regs, "MCPCIA", expected != 0);
+        process_mcheck_info(vector, la_ptr, "MCPCIA", expected != 0);
         if (!expected && vector != 0x620 && vector != 0x630) {
                 mcpcia_print_uncorrectable(mchk_logout);
                 mcpcia_print_system_area(la_ptr);
diff --git a/arch/alpha/kernel/core_polaris.c b/arch/alpha/kernel/core_polaris.c
index 277674a500ff..c5a271d37abd 100644
--- a/arch/alpha/kernel/core_polaris.c
+++ b/arch/alpha/kernel/core_polaris.c
@@ -187,8 +187,7 @@ polaris_pci_clr_err(void)
 }
 
 void
-polaris_machine_check(unsigned long vector, unsigned long la_ptr,
-                      struct pt_regs * regs)
+polaris_machine_check(unsigned long vector, unsigned long la_ptr)
 {
         /* Clear the error before any reporting.  */
         mb();
@@ -198,6 +197,6 @@ polaris_machine_check(unsigned long vector, unsigned long la_ptr,
         wrmces(0x7);
         mb();
 
-        process_mcheck_info(vector, la_ptr, regs, "POLARIS",
+        process_mcheck_info(vector, la_ptr, "POLARIS",
                             mcheck_expected(0));
 }
diff --git a/arch/alpha/kernel/core_t2.c b/arch/alpha/kernel/core_t2.c
index ecce09e3626a..f5ca5255eb06 100644
--- a/arch/alpha/kernel/core_t2.c
+++ b/arch/alpha/kernel/core_t2.c
@@ -551,8 +551,7 @@ t2_clear_errors(int cpu)
  * Hence all the taken/expected/any_expected/last_taken stuff...
  */
 void
-t2_machine_check(unsigned long vector, unsigned long la_ptr,
-                 struct pt_regs * regs)
+t2_machine_check(unsigned long vector, unsigned long la_ptr)
 {
         int cpu = smp_processor_id();
 #ifdef CONFIG_VERBOSE_MCHECK
@@ -618,5 +617,5 @@ t2_machine_check(unsigned long vector, unsigned long la_ptr,
         }
 #endif
 
-        process_mcheck_info(vector, la_ptr, regs, "T2", mcheck_expected(cpu));
+        process_mcheck_info(vector, la_ptr, "T2", mcheck_expected(cpu));
 }
diff --git a/arch/alpha/kernel/core_tsunami.c b/arch/alpha/kernel/core_tsunami.c
index 8aa305bd6a2c..ce623c6e55e1 100644
--- a/arch/alpha/kernel/core_tsunami.c
+++ b/arch/alpha/kernel/core_tsunami.c
@@ -443,8 +443,7 @@ tsunami_pci_clr_err(void)
 }
 
 void
-tsunami_machine_check(unsigned long vector, unsigned long la_ptr,
-                      struct pt_regs * regs)
+tsunami_machine_check(unsigned long vector, unsigned long la_ptr)
 {
         /* Clear error before any reporting.  */
         mb();
@@ -454,6 +453,6 @@ tsunami_machine_check(unsigned long vector, unsigned long la_ptr,
         wrmces(0x7);
         mb();
 
-        process_mcheck_info(vector, la_ptr, regs, "TSUNAMI",
+        process_mcheck_info(vector, la_ptr, "TSUNAMI",
                             mcheck_expected(smp_processor_id()));
 }
diff --git a/arch/alpha/kernel/core_wildfire.c b/arch/alpha/kernel/core_wildfire.c
index 2b767a1bad96..7e072443d7fd 100644
--- a/arch/alpha/kernel/core_wildfire.c
+++ b/arch/alpha/kernel/core_wildfire.c
@@ -322,8 +322,7 @@ wildfire_init_arch(void)
 }
 
 void
-wildfire_machine_check(unsigned long vector, unsigned long la_ptr,
-                       struct pt_regs * regs)
+wildfire_machine_check(unsigned long vector, unsigned long la_ptr)
 {
         mb();
         mb();  /* magic */
@@ -332,7 +331,7 @@ wildfire_machine_check(unsigned long vector, unsigned long la_ptr,
         wrmces(0x7);
         mb();
 
-        process_mcheck_info(vector, la_ptr, regs, "WILDFIRE",
+        process_mcheck_info(vector, la_ptr, "WILDFIRE",
                             mcheck_expected(smp_processor_id()));
 }
 
diff --git a/arch/alpha/kernel/err_ev6.c b/arch/alpha/kernel/err_ev6.c
index 64f59f2fcf5c..69b5f4ea7355 100644
--- a/arch/alpha/kernel/err_ev6.c
+++ b/arch/alpha/kernel/err_ev6.c
@@ -11,6 +11,7 @@
 #include <linux/sched.h>
 
 #include <asm/io.h>
+#include <asm/irq_regs.h>
 #include <asm/hwrpb.h>
 #include <asm/smp.h>
 #include <asm/err_common.h>
@@ -229,7 +230,7 @@ ev6_process_logout_frame(struct el_common *mchk_header, int print)
 }
 
 void
-ev6_machine_check(u64 vector, u64 la_ptr, struct pt_regs *regs)
+ev6_machine_check(u64 vector, u64 la_ptr)
 {
         struct el_common *mchk_header = (struct el_common *)la_ptr;
 
@@ -260,7 +261,7 @@ ev6_machine_check(u64 vector, u64 la_ptr, struct pt_regs *regs)
                        (unsigned int)vector, (int)smp_processor_id());
                 
                 ev6_process_logout_frame(mchk_header, 1);
-                dik_show_regs(regs, NULL);
+                dik_show_regs(get_irq_regs(), NULL);
 
                 err_print_prefix = saved_err_prefix;
         }
diff --git a/arch/alpha/kernel/err_ev7.c b/arch/alpha/kernel/err_ev7.c
index fed6b3d1b803..95463ab1cf35 100644
--- a/arch/alpha/kernel/err_ev7.c
+++ b/arch/alpha/kernel/err_ev7.c
@@ -118,7 +118,7 @@ ev7_collect_logout_frame_subpackets(struct el_subpacket *el_ptr,
 }
 
 void
-ev7_machine_check(u64 vector, u64 la_ptr, struct pt_regs *regs)
+ev7_machine_check(u64 vector, u64 la_ptr)
 {
         struct el_subpacket *el_ptr = (struct el_subpacket *)la_ptr;
         char *saved_err_prefix = err_print_prefix;
diff --git a/arch/alpha/kernel/err_impl.h b/arch/alpha/kernel/err_impl.h
index 64e9b73809fa..3c12258158e6 100644
--- a/arch/alpha/kernel/err_impl.h
+++ b/arch/alpha/kernel/err_impl.h
@@ -60,26 +60,26 @@ extern struct ev7_lf_subpackets *
 ev7_collect_logout_frame_subpackets(struct el_subpacket *,
                                     struct ev7_lf_subpackets *);
 extern void ev7_register_error_handlers(void);
-extern void ev7_machine_check(u64, u64, struct pt_regs *);
+extern void ev7_machine_check(u64, u64);
 
 /*
  * err_ev6.c
  */
 extern void ev6_register_error_handlers(void);
 extern int ev6_process_logout_frame(struct el_common *, int);
-extern void ev6_machine_check(u64, u64, struct pt_regs *);
+extern void ev6_machine_check(u64, u64);
 
 /*
  * err_marvel.c
  */
-extern void marvel_machine_check(u64, u64, struct pt_regs *);
+extern void marvel_machine_check(u64, u64);
 extern void marvel_register_error_handlers(void);
 
 /*
  * err_titan.c
  */
 extern int titan_process_logout_frame(struct el_common *, int);
-extern void titan_machine_check(u64, u64, struct pt_regs *);
+extern void titan_machine_check(u64, u64);
 extern void titan_register_error_handlers(void);
 extern int privateer_process_logout_frame(struct el_common *, int);
-extern void privateer_machine_check(u64, u64, struct pt_regs *);
+extern void privateer_machine_check(u64, u64);
diff --git a/arch/alpha/kernel/err_marvel.c b/arch/alpha/kernel/err_marvel.c
index 70b38b1d2af3..f2956ac8dccc 100644
--- a/arch/alpha/kernel/err_marvel.c
+++ b/arch/alpha/kernel/err_marvel.c
@@ -1042,7 +1042,7 @@ marvel_process_logout_frame(struct ev7_lf_subpackets *lf_subpackets, int print)
 }
 
 void
-marvel_machine_check(u64 vector, u64 la_ptr, struct pt_regs *regs)
+marvel_machine_check(u64 vector, u64 la_ptr)
 {
         struct el_subpacket *el_ptr = (struct el_subpacket *)la_ptr;
         int (*process_frame)(struct ev7_lf_subpackets *, int) = NULL;
@@ -1077,7 +1077,7 @@ marvel_machine_check(u64 vector, u64 la_ptr, struct pt_regs *regs)
 
         default:
                 /* Don't know it - pass it up.  */
-                ev7_machine_check(vector, la_ptr, regs);
+                ev7_machine_check(vector, la_ptr);
                 return;
         }       
 
diff --git a/arch/alpha/kernel/err_titan.c b/arch/alpha/kernel/err_titan.c
index 7e6720d45f02..febe71c6869f 100644
--- a/arch/alpha/kernel/err_titan.c
+++ b/arch/alpha/kernel/err_titan.c
@@ -379,7 +379,7 @@ titan_process_logout_frame(struct el_common *mchk_header, int print)
 }
 
 void
-titan_machine_check(u64 vector, u64 la_ptr, struct pt_regs *regs)
+titan_machine_check(u64 vector, u64 la_ptr)
 {
         struct el_common *mchk_header = (struct el_common *)la_ptr;
         struct el_TITAN_sysdata_mcheck *tmchk =
@@ -408,7 +408,7 @@ titan_machine_check(u64 vector, u64 la_ptr, struct pt_regs *regs)
          * Only handle system errors here 
          */
         if ((vector != SCB_Q_SYSMCHK) && (vector != SCB_Q_SYSERR)) {
-                ev6_machine_check(vector, la_ptr, regs);
+                ev6_machine_check(vector, la_ptr);
                 return;
         }
 
@@ -442,7 +442,7 @@ titan_machine_check(u64 vector, u64 la_ptr, struct pt_regs *regs)
 #ifdef CONFIG_VERBOSE_MCHECK
                 titan_process_logout_frame(mchk_header, alpha_verbose_mcheck);
                 if (alpha_verbose_mcheck)
-                        dik_show_regs(regs, NULL);
+                        dik_show_regs(get_irq_regs(), NULL);
 #endif /* CONFIG_VERBOSE_MCHECK */
 
                 err_print_prefix = saved_err_prefix;
@@ -452,7 +452,7 @@ titan_machine_check(u64 vector, u64 la_ptr, struct pt_regs *regs)
                  * machine checks to interrupts
                  */
                 irqmask = tmchk->c_dirx & TITAN_MCHECK_INTERRUPT_MASK;
-                titan_dispatch_irqs(irqmask, regs);
+                titan_dispatch_irqs(irqmask);
         }       
 
 
@@ -701,7 +701,7 @@ privateer_process_logout_frame(struct el_common *mchk_header, int print)
 }
 
 void
-privateer_machine_check(u64 vector, u64 la_ptr, struct pt_regs *regs)
+privateer_machine_check(u64 vector, u64 la_ptr)
 {
         struct el_common *mchk_header = (struct el_common *)la_ptr;
         struct el_TITAN_sysdata_mcheck *tmchk =
@@ -723,7 +723,7 @@ privateer_machine_check(u64 vector, u64 la_ptr, struct pt_regs *regs)
          * Only handle system events here.
          */
         if (vector != SCB_Q_SYSEVENT) 
-                return titan_machine_check(vector, la_ptr, regs);
+                return titan_machine_check(vector, la_ptr);
 
         /*
          * Report the event - System Events should be reported even if no
@@ -746,7 +746,7 @@ privateer_machine_check(u64 vector, u64 la_ptr, struct pt_regs *regs)
         /*
          * Dispatch the interrupt(s).
          */
-        titan_dispatch_irqs(irqmask, regs);
+        titan_dispatch_irqs(irqmask);
 
         /* 
          * Release the logout frame.
diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
index 729c475d2269..facf82a5499a 100644
--- a/arch/alpha/kernel/irq.c
+++ b/arch/alpha/kernel/irq.c
@@ -127,7 +127,7 @@ unlock:
 #define MAX_ILLEGAL_IRQS 16
 
 void
-handle_irq(int irq, struct pt_regs * regs)
+handle_irq(int irq)
 {       
         /* 
          * We ack quickly, we don't want the irq controller
@@ -157,6 +157,6 @@ handle_irq(int irq, struct pt_regs * regs)
          * at IPL 0.
          */
         local_irq_disable();
-        __do_IRQ(irq, regs);
+        __do_IRQ(irq);
         irq_exit();
 }
diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c
index ddf5cf8dcb0b..6dd126b8be85 100644
--- a/arch/alpha/kernel/irq_alpha.c
+++ b/arch/alpha/kernel/irq_alpha.c
@@ -39,6 +39,7 @@ asmlinkage void
 do_entInt(unsigned long type, unsigned long vector,
           unsigned long la_ptr, struct pt_regs *regs)
 {
+        struct pt_regs *old_regs;
         switch (type) {
         case 0:
 #ifdef CONFIG_SMP
@@ -51,6 +52,7 @@ do_entInt(unsigned long type, unsigned long vector,
 #endif
                 break;
         case 1:
+                old_regs = set_irq_regs(regs);
 #ifdef CONFIG_SMP
           {
                 long cpu;
@@ -61,18 +63,23 @@ do_entInt(unsigned long type, unsigned long vector,
                 if (cpu != boot_cpuid) {
                         kstat_cpu(cpu).irqs[RTC_IRQ]++;
                 } else {
-                        handle_irq(RTC_IRQ, regs);
+                        handle_irq(RTC_IRQ);
                 }
           }
 #else
-                handle_irq(RTC_IRQ, regs);
+                handle_irq(RTC_IRQ);
 #endif
+                set_irq_regs(old_regs);
                 return;
         case 2:
-                alpha_mv.machine_check(vector, la_ptr, regs);
+                old_regs = set_irq_regs(regs);
+                alpha_mv.machine_check(vector, la_ptr);
+                set_irq_regs(old_regs);
                 return;
         case 3:
-                alpha_mv.device_interrupt(vector, regs);
+                old_regs = set_irq_regs(regs);
+                alpha_mv.device_interrupt(vector);
+                set_irq_regs(old_regs);
                 return;
         case 4:
                 perf_irq(la_ptr, regs);
@@ -120,8 +127,7 @@ struct mcheck_info __mcheck_info;
 
 void
 process_mcheck_info(unsigned long vector, unsigned long la_ptr,
-                    struct pt_regs *regs, const char *machine,
-                    int expected)
+                    const char *machine, int expected)
 {
         struct el_common *mchk_header;
         const char *reason;
@@ -148,7 +154,7 @@ process_mcheck_info(unsigned long vector, unsigned long la_ptr,
         mchk_header = (struct el_common *)la_ptr;
 
         printk(KERN_CRIT "%s machine check: vector=0x%lx pc=0x%lx code=0x%x\n",
-               machine, vector, regs->pc, mchk_header->code);
+               machine, vector, get_irq_regs()->pc, mchk_header->code);
 
         switch (mchk_header->code) {
         /* Machine check reasons.  Defined according to PALcode sources.  */
@@ -189,7 +195,7 @@ process_mcheck_info(unsigned long vector, unsigned long la_ptr,
         printk(KERN_CRIT "machine check type: %s%s\n",
                reason, mchk_header->retry ? " (retryable)" : "");
 
-        dik_show_regs(regs, NULL);
+        dik_show_regs(get_irq_regs(), NULL);
 
 #ifdef CONFIG_VERBOSE_MCHECK
         if (alpha_verbose_mcheck > 1) {
diff --git a/arch/alpha/kernel/irq_i8259.c b/arch/alpha/kernel/irq_i8259.c
index ebbadbc0c36a..9405bee9894e 100644
--- a/arch/alpha/kernel/irq_i8259.c
+++ b/arch/alpha/kernel/irq_i8259.c
@@ -137,7 +137,7 @@ init_i8259a_irqs(void)
 
 #if defined(IACK_SC)
 void
-isa_device_interrupt(unsigned long vector, struct pt_regs *regs)
+isa_device_interrupt(unsigned long vector)
 {
         /*
          * Generate a PCI interrupt acknowledge cycle.  The PIC will
@@ -147,13 +147,13 @@ isa_device_interrupt(unsigned long vector, struct pt_regs *regs)
          */
         int j = *(vuip) IACK_SC;
         j &= 0xff;
-        handle_irq(j, regs);
+        handle_irq(j);
 }
 #endif
 
 #if defined(CONFIG_ALPHA_GENERIC) || !defined(IACK_SC)
 void
-isa_no_iack_sc_device_interrupt(unsigned long vector, struct pt_regs *regs)
+isa_no_iack_sc_device_interrupt(unsigned long vector)
 {
         unsigned long pic;
 
@@ -176,7 +176,7 @@ isa_no_iack_sc_device_interrupt(unsigned long vector, struct pt_regs *regs)
         while (pic) {
                 int j = ffz(~pic);
                 pic &= pic - 1;
-                handle_irq(j, regs);
+                handle_irq(j);
         }
 }
 #endif
diff --git a/arch/alpha/kernel/irq_impl.h b/arch/alpha/kernel/irq_impl.h
index f201d8ffc0d9..cc9a8a7aa279 100644
--- a/arch/alpha/kernel/irq_impl.h
+++ b/arch/alpha/kernel/irq_impl.h
@@ -15,10 +15,10 @@
 
 #define RTC_IRQ    8
 
-extern void isa_device_interrupt(unsigned long, struct pt_regs *);
-extern void isa_no_iack_sc_device_interrupt(unsigned long, struct pt_regs *);
-extern void srm_device_interrupt(unsigned long, struct pt_regs *);
-extern void pyxis_device_interrupt(unsigned long, struct pt_regs *);
+extern void isa_device_interrupt(unsigned long);
+extern void isa_no_iack_sc_device_interrupt(unsigned long);
+extern void srm_device_interrupt(unsigned long);
+extern void pyxis_device_interrupt(unsigned long);
 
 extern struct irqaction timer_irqaction;
 extern struct irqaction isa_cascade_irqaction;
@@ -39,4 +39,4 @@ extern void i8259a_end_irq(unsigned int);
 extern struct hw_interrupt_type i8259a_irq_type;
 extern void init_i8259a_irqs(void);
 
-extern void handle_irq(int irq, struct pt_regs * regs);
+extern void handle_irq(int irq);
diff --git a/arch/alpha/kernel/irq_pyxis.c b/arch/alpha/kernel/irq_pyxis.c
index 3b581415bab0..d53edbccbfe5 100644
--- a/arch/alpha/kernel/irq_pyxis.c
+++ b/arch/alpha/kernel/irq_pyxis.c
@@ -81,7 +81,7 @@ static struct hw_interrupt_type pyxis_irq_type = {
 };
 
 void 
-pyxis_device_interrupt(unsigned long vector, struct pt_regs *regs)
+pyxis_device_interrupt(unsigned long vector)
 {
         unsigned long pld;
         unsigned int i;
@@ -98,9 +98,9 @@ pyxis_device_interrupt(unsigned long vector, struct pt_regs *regs)
                 i = ffz(~pld);
                 pld &= pld - 1; /* clear least bit set */
                 if (i == 7)
-                        isa_device_interrupt(vector, regs);
+                        isa_device_interrupt(vector);
                 else
-                        handle_irq(16+i, regs);
+                        handle_irq(16+i);
         }
 }
 
diff --git a/arch/alpha/kernel/irq_srm.c b/arch/alpha/kernel/irq_srm.c
index 8e4d121f84cc..32212014fbe9 100644
--- a/arch/alpha/kernel/irq_srm.c
+++ b/arch/alpha/kernel/irq_srm.c
@@ -72,8 +72,8 @@ init_srm_irqs(long max, unsigned long ignore_mask)
 }
 
 void 
-srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
+srm_device_interrupt(unsigned long vector)
 {
         int irq = (vector - 0x800) >> 4;
-        handle_irq(irq, regs);
+        handle_irq(irq);
 }
diff --git a/arch/alpha/kernel/proto.h b/arch/alpha/kernel/proto.h
index 21f71287b6f5..95912ecc65e1 100644
--- a/arch/alpha/kernel/proto.h
+++ b/arch/alpha/kernel/proto.h
@@ -20,7 +20,7 @@ struct pci_controller;
 extern struct pci_ops apecs_pci_ops;
 extern void apecs_init_arch(void);
 extern void apecs_pci_clr_err(void);
-extern void apecs_machine_check(u64, u64, struct pt_regs *);
+extern void apecs_machine_check(u64, u64);
 extern void apecs_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
 
 /* core_cia.c */
@@ -29,27 +29,27 @@ extern void cia_init_pci(void);
 extern void cia_init_arch(void);
 extern void pyxis_init_arch(void);
 extern void cia_kill_arch(int);
-extern void cia_machine_check(u64, u64, struct pt_regs *);
+extern void cia_machine_check(u64, u64);
 extern void cia_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
 
 /* core_irongate.c */
 extern struct pci_ops irongate_pci_ops;
 extern int irongate_pci_clr_err(void);
 extern void irongate_init_arch(void);
-extern void irongate_machine_check(u64, u64, struct pt_regs *);
+extern void irongate_machine_check(u64, u64);
 #define irongate_pci_tbi ((void *)0)
 
 /* core_lca.c */
 extern struct pci_ops lca_pci_ops;
 extern void lca_init_arch(void);
-extern void lca_machine_check(u64, u64, struct pt_regs *);
+extern void lca_machine_check(u64, u64);
 extern void lca_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
 
 /* core_marvel.c */
 extern struct pci_ops marvel_pci_ops;
 extern void marvel_init_arch(void);
 extern void marvel_kill_arch(int);
-extern void marvel_machine_check(u64, u64, struct pt_regs *);
+extern void marvel_machine_check(u64, u64);
 extern void marvel_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
 extern int marvel_pa_to_nid(unsigned long);
 extern int marvel_cpuid_to_nid(int);
@@ -64,7 +64,7 @@ void io7_clear_errors(struct io7 *io7);
 extern struct pci_ops mcpcia_pci_ops;
 extern void mcpcia_init_arch(void);
 extern void mcpcia_init_hoses(void);
-extern void mcpcia_machine_check(u64, u64, struct pt_regs *);
+extern void mcpcia_machine_check(u64, u64);
 extern void mcpcia_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
 
 /* core_polaris.c */
@@ -72,21 +72,21 @@ extern struct pci_ops polaris_pci_ops;
 extern int polaris_read_config_dword(struct pci_dev *, int, u32 *);
 extern int polaris_write_config_dword(struct pci_dev *, int, u32);
 extern void polaris_init_arch(void);
-extern void polaris_machine_check(u64, u64, struct pt_regs *);
+extern void polaris_machine_check(u64, u64);
 #define polaris_pci_tbi ((void *)0)
 
 /* core_t2.c */
 extern struct pci_ops t2_pci_ops;
 extern void t2_init_arch(void);
 extern void t2_kill_arch(int);
-extern void t2_machine_check(u64, u64, struct pt_regs *);
+extern void t2_machine_check(u64, u64);
 extern void t2_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
 
 /* core_titan.c */
 extern struct pci_ops titan_pci_ops;
 extern void titan_init_arch(void);
 extern void titan_kill_arch(int);
-extern void titan_machine_check(u64, u64, struct pt_regs *);
+extern void titan_machine_check(u64, u64);
 extern void titan_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
 extern struct _alpha_agp_info *titan_agp_info(void);
 
@@ -94,14 +94,14 @@ extern struct _alpha_agp_info *titan_agp_info(void);
 extern struct pci_ops tsunami_pci_ops;
 extern void tsunami_init_arch(void);
 extern void tsunami_kill_arch(int);
-extern void tsunami_machine_check(u64, u64, struct pt_regs *);
+extern void tsunami_machine_check(u64, u64);
 extern void tsunami_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
 
 /* core_wildfire.c */
 extern struct pci_ops wildfire_pci_ops;
 extern void wildfire_init_arch(void);
 extern void wildfire_kill_arch(int);
-extern void wildfire_machine_check(u64, u64, struct pt_regs *);
+extern void wildfire_machine_check(u64, u64);
 extern void wildfire_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
 extern int wildfire_pa_to_nid(unsigned long);
 extern int wildfire_cpuid_to_nid(int);
@@ -133,7 +133,7 @@ extern void smp_percpu_timer_interrupt(struct pt_regs *);
 /* extern void reset_for_srm(void); */
 
 /* time.c */
-extern irqreturn_t timer_interrupt(int irq, void *dev, struct pt_regs * regs);
+extern irqreturn_t timer_interrupt(int irq, void *dev);
 extern void common_init_rtc(void);
 extern unsigned long est_cycle_freq;
 
@@ -177,7 +177,7 @@ extern void dik_show_regs(struct pt_regs *regs, unsigned long *r9_15);
 extern void die_if_kernel(char *, struct pt_regs *, long, unsigned long *);
 
 /* sys_titan.c */
-extern void titan_dispatch_irqs(u64, struct pt_regs *);
+extern void titan_dispatch_irqs(u64);
 
 /* ../mm/init.c */
 extern void switch_to_system_map(void);
@@ -214,5 +214,4 @@ extern struct mcheck_info
 #endif
 
 extern void process_mcheck_info(unsigned long vector, unsigned long la_ptr,
-                                struct pt_regs *regs, const char *machine,
-                                int expected);
+                                const char *machine, int expected);
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 4dc273e537fd..596780e2c7da 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -515,12 +515,15 @@ smp_cpus_done(unsigned int max_cpus)
 void
 smp_percpu_timer_interrupt(struct pt_regs *regs)
 {
+        struct pt_regs *old_regs;
         int cpu = smp_processor_id();
         unsigned long user = user_mode(regs);
         struct cpuinfo_alpha *data = &cpu_data[cpu];
 
+        old_regs = set_irq_regs(regs);
+
         /* Record kernel PC.  */
-        profile_tick(CPU_PROFILING, regs);
+        profile_tick(CPU_PROFILING);
 
         if (!--data->prof_counter) {
                 /* We need to make like a normal interrupt -- otherwise
@@ -534,6 +537,7 @@ smp_percpu_timer_interrupt(struct pt_regs *regs)
 
                 irq_exit();
         }
+        set_irq_regs(old_regs);
 }
 
 int __init
diff --git a/arch/alpha/kernel/sys_alcor.c b/arch/alpha/kernel/sys_alcor.c
index d6926b7b1e99..49bedfbbd31b 100644
--- a/arch/alpha/kernel/sys_alcor.c
+++ b/arch/alpha/kernel/sys_alcor.c
@@ -100,7 +100,7 @@ static struct hw_interrupt_type alcor_irq_type = {
 };
 
 static void
-alcor_device_interrupt(unsigned long vector, struct pt_regs *regs)
+alcor_device_interrupt(unsigned long vector)
 {
         unsigned long pld;
         unsigned int i;
@@ -116,9 +116,9 @@ alcor_device_interrupt(unsigned long vector, struct pt_regs *regs)
                 i = ffz(~pld);
                 pld &= pld - 1; /* clear least bit set */
                 if (i == 31) {
-                        isa_device_interrupt(vector, regs);
+                        isa_device_interrupt(vector);
                 } else {
-                        handle_irq(16 + i, regs);
+                        handle_irq(16 + i);
                 }
         }
 }
diff --git a/arch/alpha/kernel/sys_cabriolet.c b/arch/alpha/kernel/sys_cabriolet.c
index 25a215067da8..ace475c124f6 100644
--- a/arch/alpha/kernel/sys_cabriolet.c
+++ b/arch/alpha/kernel/sys_cabriolet.c
@@ -82,7 +82,7 @@ static struct hw_interrupt_type cabriolet_irq_type = {
 };
 
 static void 
-cabriolet_device_interrupt(unsigned long v, struct pt_regs *r)
+cabriolet_device_interrupt(unsigned long v)
 {
         unsigned long pld;
         unsigned int i;
@@ -98,15 +98,15 @@ cabriolet_device_interrupt(unsigned long v, struct pt_regs *r)
                 i = ffz(~pld);
                 pld &= pld - 1; /* clear least bit set */
                 if (i == 4) {
-                        isa_device_interrupt(v, r);
+                        isa_device_interrupt(v);
                 } else {
-                        handle_irq(16 + i, r);
+                        handle_irq(16 + i);
                 }
         }
 }
 
 static void __init
-common_init_irq(void (*srm_dev_int)(unsigned long v, struct pt_regs *r))
+common_init_irq(void (*srm_dev_int)(unsigned long v))
 {
         init_i8259a_irqs();
 
@@ -154,18 +154,18 @@ cabriolet_init_irq(void)
    too invasive though.  */
 
 static void
-pc164_srm_device_interrupt(unsigned long v, struct pt_regs *r)
+pc164_srm_device_interrupt(unsigned long v)
 {
         __min_ipl = getipl();
-        srm_device_interrupt(v, r);
+        srm_device_interrupt(v);
         __min_ipl = 0;
 }
 
 static void
-pc164_device_interrupt(unsigned long v, struct pt_regs *r)
+pc164_device_interrupt(unsigned long v)
 {
         __min_ipl = getipl();
-        cabriolet_device_interrupt(v, r);
+        cabriolet_device_interrupt(v);
         __min_ipl = 0;
 }
 
diff --git a/arch/alpha/kernel/sys_dp264.c b/arch/alpha/kernel/sys_dp264.c
index dd6103b867e7..85d2f933dd07 100644
--- a/arch/alpha/kernel/sys_dp264.c
+++ b/arch/alpha/kernel/sys_dp264.c
@@ -217,7 +217,7 @@ static struct hw_interrupt_type clipper_irq_type = {
 };
 
 static void
-dp264_device_interrupt(unsigned long vector, struct pt_regs * regs)
+dp264_device_interrupt(unsigned long vector)
 {
 #if 1
         printk("dp264_device_interrupt: NOT IMPLEMENTED YET!! \n");
@@ -236,9 +236,9 @@ dp264_device_interrupt(unsigned long vector, struct pt_regs * regs)
                 i = ffz(~pld);
                 pld &= pld - 1; /* clear least bit set */
                 if (i == 55)
-                        isa_device_interrupt(vector, regs);
+                        isa_device_interrupt(vector);
                 else
-                        handle_irq(16 + i, 16 + i, regs);
+                        handle_irq(16 + i);
 #if 0
                 TSUNAMI_cchip->dir0.csr = 1UL << i; mb();
                 tmp = TSUNAMI_cchip->dir0.csr;
@@ -248,7 +248,7 @@ dp264_device_interrupt(unsigned long vector, struct pt_regs * regs)
 }
 
 static void 
-dp264_srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
+dp264_srm_device_interrupt(unsigned long vector)
 {
         int irq;
 
@@ -268,11 +268,11 @@ dp264_srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
         if (irq >= 32)
                 irq -= 16;
 
-        handle_irq(irq, regs);
+        handle_irq(irq);
 }
 
 static void 
-clipper_srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
+clipper_srm_device_interrupt(unsigned long vector)
 {
         int irq;
 
@@ -290,7 +290,7 @@ clipper_srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
          *
          * Eg IRQ 24 is DRIR bit 8, etc, etc
          */
-        handle_irq(irq, regs);
+        handle_irq(irq);
 }
 
 static void __init
diff --git a/arch/alpha/kernel/sys_eb64p.c b/arch/alpha/kernel/sys_eb64p.c
index ed108b66ec09..9c5a306dc0ee 100644
--- a/arch/alpha/kernel/sys_eb64p.c
+++ b/arch/alpha/kernel/sys_eb64p.c
@@ -80,7 +80,7 @@ static struct hw_interrupt_type eb64p_irq_type = {
 };
 
 static void 
-eb64p_device_interrupt(unsigned long vector, struct pt_regs *regs)
+eb64p_device_interrupt(unsigned long vector)
 {
         unsigned long pld;
         unsigned int i;
@@ -97,9 +97,9 @@ eb64p_device_interrupt(unsigned long vector, struct pt_regs *regs)
                 pld &= pld - 1; /* clear least bit set */
 
                 if (i == 5) {
-                        isa_device_interrupt(vector, regs);
+                        isa_device_interrupt(vector);
                 } else {
-                        handle_irq(16 + i, regs);
+                        handle_irq(16 + i);
                 }
         }
 }
diff --git a/arch/alpha/kernel/sys_eiger.c b/arch/alpha/kernel/sys_eiger.c
index 64a785baf53a..7ef3b6fb3700 100644
--- a/arch/alpha/kernel/sys_eiger.c
+++ b/arch/alpha/kernel/sys_eiger.c
@@ -91,7 +91,7 @@ static struct hw_interrupt_type eiger_irq_type = {
 };
 
 static void
-eiger_device_interrupt(unsigned long vector, struct pt_regs * regs)
+eiger_device_interrupt(unsigned long vector)
 {
         unsigned intstatus;
 
@@ -118,20 +118,20 @@ eiger_device_interrupt(unsigned long vector, struct pt_regs * regs)
                  * despatch an interrupt if it's set.
                  */
 
-                if (intstatus & 8) handle_irq(16+3, regs);
-                if (intstatus & 4) handle_irq(16+2, regs);
-                if (intstatus & 2) handle_irq(16+1, regs);
-                if (intstatus & 1) handle_irq(16+0, regs);
+                if (intstatus & 8) handle_irq(16+3);
+                if (intstatus & 4) handle_irq(16+2);
+                if (intstatus & 2) handle_irq(16+1);
+                if (intstatus & 1) handle_irq(16+0);
         } else {
-                isa_device_interrupt(vector, regs);
+                isa_device_interrupt(vector);
         }
 }
 
 static void
-eiger_srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
+eiger_srm_device_interrupt(unsigned long vector)
 {
         int irq = (vector - 0x800) >> 4;
-        handle_irq(irq, regs);
+        handle_irq(irq);
 }
 
 static void __init
diff --git a/arch/alpha/kernel/sys_jensen.c b/arch/alpha/kernel/sys_jensen.c
index 4ac2b328b8de..2c3de97de46c 100644
--- a/arch/alpha/kernel/sys_jensen.c
+++ b/arch/alpha/kernel/sys_jensen.c
@@ -129,7 +129,7 @@ static struct hw_interrupt_type jensen_local_irq_type = {
 };
 
 static void 
-jensen_device_interrupt(unsigned long vector, struct pt_regs * regs)
+jensen_device_interrupt(unsigned long vector)
 {
         int irq;
 
@@ -189,7 +189,7 @@ jensen_device_interrupt(unsigned long vector, struct pt_regs * regs)
           if (cc - last_msg > ((JENSEN_CYCLES_PER_SEC) * 3) ||
               irq != last_irq) {
                 printk(KERN_CRIT " irq %d count %d cc %u @ %lx\n",
-                       irq, count, cc-last_cc, regs->pc);
+                       irq, count, cc-last_cc, get_irq_regs()->pc);
                 count = 0;
                 last_msg = cc;
                 last_irq = irq;
@@ -198,7 +198,7 @@ jensen_device_interrupt(unsigned long vector, struct pt_regs * regs)
         }
 #endif
 
-        handle_irq(irq, regs);
+        handle_irq(irq);
 }
 
 static void __init
@@ -244,7 +244,7 @@ jensen_init_arch(void)
 }
 
 static void
-jensen_machine_check (u64 vector, u64 la, struct pt_regs *regs)
+jensen_machine_check (u64 vector, u64 la)
 {
         printk(KERN_CRIT "Machine check\n");
 }
diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c
index 36d215954376..e349f03b830e 100644
--- a/arch/alpha/kernel/sys_marvel.c
+++ b/arch/alpha/kernel/sys_marvel.c
@@ -38,7 +38,7 @@
  * Interrupt handling.
  */
 static void 
-io7_device_interrupt(unsigned long vector, struct pt_regs * regs)
+io7_device_interrupt(unsigned long vector)
 {
         unsigned int pid;
         unsigned int irq;
@@ -64,7 +64,7 @@ io7_device_interrupt(unsigned long vector, struct pt_regs * regs)
         irq &= MARVEL_IRQ_VEC_IRQ_MASK;         /* not too many bits */
         irq |= pid << MARVEL_IRQ_VEC_PE_SHIFT;  /* merge the pid     */
 
-        handle_irq(irq, regs);
+        handle_irq(irq);
 }
 
 static volatile unsigned long *
diff --git a/arch/alpha/kernel/sys_miata.c b/arch/alpha/kernel/sys_miata.c
index 61ac56f8eeea..b8b817feb1ee 100644
--- a/arch/alpha/kernel/sys_miata.c
+++ b/arch/alpha/kernel/sys_miata.c
@@ -33,7 +33,7 @@
 
 
 static void 
-miata_srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
+miata_srm_device_interrupt(unsigned long vector)
 {
         int irq;
 
@@ -56,7 +56,7 @@ miata_srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
         if (irq >= 16)
                 irq = irq + 8;
 
-        handle_irq(irq, regs);
+        handle_irq(irq);
 }
 
 static void __init
diff --git a/arch/alpha/kernel/sys_mikasa.c b/arch/alpha/kernel/sys_mikasa.c
index cc4c58111366..8d3e9429c5ee 100644
--- a/arch/alpha/kernel/sys_mikasa.c
+++ b/arch/alpha/kernel/sys_mikasa.c
@@ -79,7 +79,7 @@ static struct hw_interrupt_type mikasa_irq_type = {
 };
 
 static void 
-mikasa_device_interrupt(unsigned long vector, struct pt_regs *regs)
+mikasa_device_interrupt(unsigned long vector)
 {
         unsigned long pld;
         unsigned int i;
@@ -97,9 +97,9 @@ mikasa_device_interrupt(unsigned long vector, struct pt_regs *regs)
                 i = ffz(~pld);
                 pld &= pld - 1; /* clear least bit set */
                 if (i < 16) {
-                        isa_device_interrupt(vector, regs);
+                        isa_device_interrupt(vector);
                 } else {
-                        handle_irq(i, regs);
+                        handle_irq(i);
                 }
         }
 }
@@ -182,8 +182,7 @@ mikasa_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
 
 #if defined(CONFIG_ALPHA_GENERIC) || !defined(CONFIG_ALPHA_PRIMO)
 static void
-mikasa_apecs_machine_check(unsigned long vector, unsigned long la_ptr,
-                           struct pt_regs * regs)
+mikasa_apecs_machine_check(unsigned long vector, unsigned long la_ptr)
 {
 #define MCHK_NO_DEVSEL 0x205U
 #define MCHK_NO_TABT 0x204U
@@ -202,7 +201,7 @@ mikasa_apecs_machine_check(unsigned long vector, unsigned long la_ptr,
         mb();
 
         code = mchk_header->code;
-        process_mcheck_info(vector, la_ptr, regs, "MIKASA APECS",
+        process_mcheck_info(vector, la_ptr, "MIKASA APECS",
                             (mcheck_expected(0)
                              && (code == MCHK_NO_DEVSEL
                                  || code == MCHK_NO_TABT)));
diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c
index c0d696efec5b..93744bab73fb 100644
--- a/arch/alpha/kernel/sys_nautilus.c
+++ b/arch/alpha/kernel/sys_nautilus.c
@@ -124,8 +124,7 @@ naut_sys_machine_check(unsigned long vector, unsigned long la_ptr,
    in the system.  They are analysed separately but all starts here.  */
 
 void
-nautilus_machine_check(unsigned long vector, unsigned long la_ptr,
-                       struct pt_regs *regs)
+nautilus_machine_check(unsigned long vector, unsigned long la_ptr)
 {
         char *mchk_class;
 
@@ -165,7 +164,7 @@ nautilus_machine_check(unsigned long vector, unsigned long la_ptr,
         else if (vector == SCB_Q_SYSMCHK)
                 mchk_class = "Fatal";
         else {
-                ev6_machine_check(vector, la_ptr, regs);
+                ev6_machine_check(vector, la_ptr);
                 return;
         }
 
@@ -173,7 +172,7 @@ nautilus_machine_check(unsigned long vector, unsigned long la_ptr,
                          "[%s System Machine Check (NMI)]\n",
                vector, mchk_class);
 
-        naut_sys_machine_check(vector, la_ptr, regs);
+        naut_sys_machine_check(vector, la_ptr, get_irq_regs());
 
         /* Tell the PALcode to clear the machine check */
         draina();
diff --git a/arch/alpha/kernel/sys_noritake.c b/arch/alpha/kernel/sys_noritake.c
index 2d3cff7e8c5f..de6ba3432e8a 100644
--- a/arch/alpha/kernel/sys_noritake.c
+++ b/arch/alpha/kernel/sys_noritake.c
@@ -77,7 +77,7 @@ static struct hw_interrupt_type noritake_irq_type = {
 };
 
 static void 
-noritake_device_interrupt(unsigned long vector, struct pt_regs *regs)
+noritake_device_interrupt(unsigned long vector)
 {
         unsigned long pld;
         unsigned int i;
@@ -96,15 +96,15 @@ noritake_device_interrupt(unsigned long vector, struct pt_regs *regs)
                 i = ffz(~pld);
                 pld &= pld - 1; /* clear least bit set */
                 if (i < 16) {
-                        isa_device_interrupt(vector, regs);
+                        isa_device_interrupt(vector);
                 } else {
-                        handle_irq(i, regs);
+                        handle_irq(i);
                 }
         }
 }
 
 static void 
-noritake_srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
+noritake_srm_device_interrupt(unsigned long vector)
 {
         int irq;
 
@@ -122,7 +122,7 @@ noritake_srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
         if (irq >= 16)
                 irq = irq + 1;
 
-        handle_irq(irq, regs);
+        handle_irq(irq);
 }
 
 static void __init
@@ -264,8 +264,7 @@ noritake_swizzle(struct pci_dev *dev, u8 *pinp)
 
 #if defined(CONFIG_ALPHA_GENERIC) || !defined(CONFIG_ALPHA_PRIMO)
 static void
-noritake_apecs_machine_check(unsigned long vector, unsigned long la_ptr,
-                             struct pt_regs * regs)
+noritake_apecs_machine_check(unsigned long vector, unsigned long la_ptr)
 {
 #define MCHK_NO_DEVSEL 0x205U
 #define MCHK_NO_TABT 0x204U
@@ -284,7 +283,7 @@ noritake_apecs_machine_check(unsigned long vector, unsigned long la_ptr,
         mb();
 
         code = mchk_header->code;
-        process_mcheck_info(vector, la_ptr, regs, "NORITAKE APECS",
+        process_mcheck_info(vector, la_ptr, "NORITAKE APECS",
                             (mcheck_expected(0)
                              && (code == MCHK_NO_DEVSEL
                                  || code == MCHK_NO_TABT)));
diff --git a/arch/alpha/kernel/sys_rawhide.c b/arch/alpha/kernel/sys_rawhide.c
index 949607e3d6fb..581d08c70b92 100644
--- a/arch/alpha/kernel/sys_rawhide.c
+++ b/arch/alpha/kernel/sys_rawhide.c
@@ -134,7 +134,7 @@ static struct hw_interrupt_type rawhide_irq_type = {
 };
 
 static void 
-rawhide_srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
+rawhide_srm_device_interrupt(unsigned long vector)
 {
         int irq;
 
@@ -158,7 +158,7 @@ rawhide_srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
         /* Adjust by which hose it is from.  */
         irq -= ((irq + 16) >> 2) & 0x38;
 
-        handle_irq(irq, regs);
+        handle_irq(irq);
 }
 
 static void __init
diff --git a/arch/alpha/kernel/sys_rx164.c b/arch/alpha/kernel/sys_rx164.c
index 6ae506052635..ce1faa6f1df1 100644
--- a/arch/alpha/kernel/sys_rx164.c
+++ b/arch/alpha/kernel/sys_rx164.c
@@ -83,7 +83,7 @@ static struct hw_interrupt_type rx164_irq_type = {
 };
 
 static void 
-rx164_device_interrupt(unsigned long vector, struct pt_regs *regs)
+rx164_device_interrupt(unsigned long vector)
 {
         unsigned long pld;
         volatile unsigned int *dirr;
@@ -102,9 +102,9 @@ rx164_device_interrupt(unsigned long vector, struct pt_regs *regs)
                 i = ffz(~pld);
                 pld &= pld - 1; /* clear least bit set */
                 if (i == 20) {
-                        isa_no_iack_sc_device_interrupt(vector, regs);
+                        isa_no_iack_sc_device_interrupt(vector);
                 } else {
-                        handle_irq(16+i, regs);
+                        handle_irq(16+i);
                 }
         }
 }
diff --git a/arch/alpha/kernel/sys_sable.c b/arch/alpha/kernel/sys_sable.c
index a7a14647b50e..906019cfa681 100644
--- a/arch/alpha/kernel/sys_sable.c
+++ b/arch/alpha/kernel/sys_sable.c
@@ -512,7 +512,7 @@ static struct hw_interrupt_type sable_lynx_irq_type = {
 };
 
 static void 
-sable_lynx_srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
+sable_lynx_srm_device_interrupt(unsigned long vector)
 {
         /* Note that the vector reported by the SRM PALcode corresponds
            to the interrupt mask bits, but we have to manage via the
@@ -526,7 +526,7 @@ sable_lynx_srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
         printk("%s: vector 0x%lx bit 0x%x irq 0x%x\n",
                __FUNCTION__, vector, bit, irq);
 #endif
-        handle_irq(irq, regs);
+        handle_irq(irq);
 }
 
 static void __init
diff --git a/arch/alpha/kernel/sys_takara.c b/arch/alpha/kernel/sys_takara.c
index 2c75cd1fd81a..9bd9a31450c6 100644
--- a/arch/alpha/kernel/sys_takara.c
+++ b/arch/alpha/kernel/sys_takara.c
@@ -85,7 +85,7 @@ static struct hw_interrupt_type takara_irq_type = {
 };
 
 static void
-takara_device_interrupt(unsigned long vector, struct pt_regs *regs)
+takara_device_interrupt(unsigned long vector)
 {
         unsigned intstatus;
 
@@ -112,20 +112,20 @@ takara_device_interrupt(unsigned long vector, struct pt_regs *regs)
                  * despatch an interrupt if it's set.
                  */
 
-                if (intstatus & 8) handle_irq(16+3, regs);
-                if (intstatus & 4) handle_irq(16+2, regs);
-                if (intstatus & 2) handle_irq(16+1, regs);
-                if (intstatus & 1) handle_irq(16+0, regs);
+                if (intstatus & 8) handle_irq(16+3);
+                if (intstatus & 4) handle_irq(16+2);
+                if (intstatus & 2) handle_irq(16+1);
+                if (intstatus & 1) handle_irq(16+0);
         } else {
-                isa_device_interrupt (vector, regs);
+                isa_device_interrupt (vector);
         }
 }
 
 static void 
-takara_srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
+takara_srm_device_interrupt(unsigned long vector)
 {
         int irq = (vector - 0x800) >> 4;
-        handle_irq(irq, regs);
+        handle_irq(irq);
 }
 
 static void __init
diff --git a/arch/alpha/kernel/sys_titan.c b/arch/alpha/kernel/sys_titan.c
index 302aab38d95f..29ab7db81c30 100644
--- a/arch/alpha/kernel/sys_titan.c
+++ b/arch/alpha/kernel/sys_titan.c
@@ -167,18 +167,18 @@ titan_set_irq_affinity(unsigned int irq, cpumask_t affinity)
 }
 
 static void
-titan_device_interrupt(unsigned long vector, struct pt_regs * regs)
+titan_device_interrupt(unsigned long vector)
 {
         printk("titan_device_interrupt: NOT IMPLEMENTED YET!! \n");
 }
 
 static void 
-titan_srm_device_interrupt(unsigned long vector, struct pt_regs * regs)
+titan_srm_device_interrupt(unsigned long vector)
 {
         int irq;
 
         irq = (vector - 0x800) >> 4;
-        handle_irq(irq, regs);
+        handle_irq(irq);
 }
 
 
@@ -204,7 +204,7 @@ static struct hw_interrupt_type titan_irq_type = {
 };
 
 static irqreturn_t
-titan_intr_nop(int irq, void *dev_id, struct pt_regs *regs)                    
+titan_intr_nop(int irq, void *dev_id)
 {
       /*
        * This is a NOP interrupt handler for the purposes of
@@ -243,7 +243,7 @@ titan_legacy_init_irq(void)
 }
 
 void
-titan_dispatch_irqs(u64 mask, struct pt_regs *regs)
+titan_dispatch_irqs(u64 mask)
 {
         unsigned long vector;
 
@@ -263,7 +263,7 @@ titan_dispatch_irqs(u64 mask, struct pt_regs *regs)
                 vector = 0x900 + (vector << 4); /* convert to SRM vector */
                 
                 /* dispatch it */
-                alpha_mv.device_interrupt(vector, regs);
+                alpha_mv.device_interrupt(vector);
         }
 }
   
diff --git a/arch/alpha/kernel/sys_wildfire.c b/arch/alpha/kernel/sys_wildfire.c
index 22c5798fe083..42c3eede4d09 100644
--- a/arch/alpha/kernel/sys_wildfire.c
+++ b/arch/alpha/kernel/sys_wildfire.c
@@ -234,7 +234,7 @@ wildfire_init_irq(void)
 }
 
 static void 
-wildfire_device_interrupt(unsigned long vector, struct pt_regs * regs)
+wildfire_device_interrupt(unsigned long vector)
 {
         int irq;
 
@@ -246,7 +246,7 @@ wildfire_device_interrupt(unsigned long vector, struct pt_regs * regs)
          * bits 5-0:    irq in PCA
          */
 
-        handle_irq(irq, regs);
+        handle_irq(irq);
         return;
 }
 
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index 581ddcc22fc5..cf0666523989 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -104,7 +104,7 @@ unsigned long long sched_clock(void)
  * timer_interrupt() needs to keep up the real-time clock,
  * as well as call the "do_timer()" routine every clocktick
  */
-irqreturn_t timer_interrupt(int irq, void *dev, struct pt_regs * regs)
+irqreturn_t timer_interrupt(int irq, void *dev)
 {
         unsigned long delta;
         __u32 now;
@@ -112,7 +112,7 @@ irqreturn_t timer_interrupt(int irq, void *dev, struct pt_regs * regs)
 
 #ifndef CONFIG_SMP
         /* Not SMP, do kernel PC profiling here.  */
-        profile_tick(CPU_PROFILING, regs);
+        profile_tick(CPU_PROFILING);
 #endif
 
         write_seqlock(&xtime_lock);
@@ -132,7 +132,7 @@ irqreturn_t timer_interrupt(int irq, void *dev, struct pt_regs * regs)
         while (nticks > 0) {
                 do_timer(1);
 #ifndef CONFIG_SMP
-                update_process_times(user_mode(regs));
+                update_process_times(user_mode(get_irq_regs()));
 #endif
                 nticks--;
         }