[SPARC64]: Use machine description and OBP properly for cpu probing.

[deliverable/linux.git] / arch / sparc64 / kernel / entry.S

diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index be85ce2a4ad9ebadaf2102bdf961f3a6ba9357f1..f8cc3c0731c735f484686898ec5a146266e93235 100644 (file)
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -7,7 +7,6 @@
  * Copyright (C) 1996,98,99 Jakub Jelinek  (jj@sunsite.mff.cuni.cz)
  */
 
-#include <linux/config.h>
 #include <linux/errno.h>
 
 #include <asm/head.h>
@@ -23,11 +22,10 @@
 #include <asm/auxio.h>
 #include <asm/sfafsr.h>
 #include <asm/pil.h>
+#include <asm/unistd.h>
 
 #define curptr      g6
 
-#define NR_SYSCALLS 300      /* Each OS is different... */
-
        .text
        .align          32
 
@@ -599,7 +597,12 @@ __spitfire_cee_trap_continue:
 1:     ba,pt           %xcc, etrap_irq
         rd             %pc, %g7
 
-2:     mov             %l4, %o1
+2:
+#ifdef CONFIG_TRACE_IRQFLAGS
+       call    trace_hardirqs_off
+        nop
+#endif
+       mov             %l4, %o1
        mov             %l5, %o2
        call            spitfire_access_error
         add            %sp, PTREGS_OFF, %o0
@@ -826,6 +829,10 @@ do_cheetah_plus_data_parity:
        wrpr            %g0, 15, %pil
        ba,pt           %xcc, etrap_irq
         rd             %pc, %g7
+#ifdef CONFIG_TRACE_IRQFLAGS
+       call            trace_hardirqs_off
+        nop
+#endif
        mov             0x0, %o0
        call            cheetah_plus_parity_error
         add            %sp, PTREGS_OFF, %o1
@@ -857,6 +864,10 @@ do_cheetah_plus_insn_parity:
        wrpr            %g0, 15, %pil
        ba,pt           %xcc, etrap_irq
         rd             %pc, %g7
+#ifdef CONFIG_TRACE_IRQFLAGS
+       call            trace_hardirqs_off
+        nop
+#endif
        mov             0x1, %o0
        call            cheetah_plus_parity_error
         add            %sp, PTREGS_OFF, %o1
@@ -1185,6 +1196,10 @@ c_fast_ecc:
        wrpr            %g0, 15, %pil
        ba,pt           %xcc, etrap_irq
         rd             %pc, %g7
+#ifdef CONFIG_TRACE_IRQFLAGS
+       call            trace_hardirqs_off
+        nop
+#endif
        mov             %l4, %o1
        mov             %l5, %o2
        call            cheetah_fecc_handler
@@ -1213,6 +1228,10 @@ c_cee:
        wrpr            %g0, 15, %pil
        ba,pt           %xcc, etrap_irq
         rd             %pc, %g7
+#ifdef CONFIG_TRACE_IRQFLAGS
+       call            trace_hardirqs_off
+        nop
+#endif
        mov             %l4, %o1
        mov             %l5, %o2
        call            cheetah_cee_handler
@@ -1241,6 +1260,10 @@ c_deferred:
        wrpr            %g0, 15, %pil
        ba,pt           %xcc, etrap_irq
         rd             %pc, %g7
+#ifdef CONFIG_TRACE_IRQFLAGS
+       call            trace_hardirqs_off
+        nop
+#endif
        mov             %l4, %o1
        mov             %l5, %o2
        call            cheetah_deferred_handler
@@ -1820,3 +1843,118 @@ sun4v_cpu_state:
        mov     %o1, %o0
 1:     retl
         nop
+
+       /* %o0: API group number
+        * %o1: pointer to unsigned long major number storage
+        * %o2: pointer to unsigned long minor number storage
+        *
+        * returns %o0: status
+        */
+       .globl  sun4v_get_version
+sun4v_get_version:
+       mov     HV_CORE_GET_VER, %o5
+       mov     %o1, %o3
+       mov     %o2, %o4
+       ta      HV_CORE_TRAP
+       stx     %o1, [%o3]
+       retl
+        stx    %o2, [%o4]
+
+       /* %o0: API group number
+        * %o1: desired major number
+        * %o2: desired minor number
+        * %o3: pointer to unsigned long actual minor number storage
+        *
+        * returns %o0: status
+        */
+       .globl  sun4v_set_version
+sun4v_set_version:
+       mov     HV_CORE_SET_VER, %o5
+       mov     %o3, %o4
+       ta      HV_CORE_TRAP
+       retl
+        stx    %o1, [%o4]
+
+       /* %o0: pointer to unsigned long status
+        *
+        * returns %o0: signed character
+        */
+       .globl  sun4v_con_getchar
+sun4v_con_getchar:
+       mov     %o0, %o4
+       mov     HV_FAST_CONS_GETCHAR, %o5
+       clr     %o0
+       clr     %o1
+       ta      HV_FAST_TRAP
+       stx     %o0, [%o4]
+       retl
+        sra    %o1, 0, %o0
+
+       /* %o0: signed long character
+        *
+        * returns %o0: status
+        */
+       .globl  sun4v_con_putchar
+sun4v_con_putchar:
+       mov     HV_FAST_CONS_PUTCHAR, %o5
+       ta      HV_FAST_TRAP
+       retl
+        sra    %o0, 0, %o0
+
+       /* %o0: buffer real address
+        * %o1: buffer size
+        * %o2: pointer to unsigned long bytes_read
+        *
+        * returns %o0: status
+        */
+       .globl  sun4v_con_read
+sun4v_con_read:
+       mov     %o2, %o4
+       mov     HV_FAST_CONS_READ, %o5
+       ta      HV_FAST_TRAP
+       brnz    %o0, 1f
+        cmp    %o1, -1         /* break */
+       be,a,pn %icc, 1f
+        mov    %o1, %o0
+       cmp     %o1, -2         /* hup */
+       be,a,pn %icc, 1f
+        mov    %o1, %o0
+       stx     %o1, [%o4]
+1:     retl
+        nop
+
+       /* %o0: buffer real address
+        * %o1: buffer size
+        * %o2: pointer to unsigned long bytes_written
+        *
+        * returns %o0: status
+        */
+       .globl  sun4v_con_write
+sun4v_con_write:
+       mov     %o2, %o4
+       mov     HV_FAST_CONS_WRITE, %o5
+       ta      HV_FAST_TRAP
+       stx     %o1, [%o4]
+       retl
+        nop
+
+       /* %o0: soft state
+        * %o1: address of description string
+        *
+        * returns %o0: status
+        */
+       .globl  sun4v_mach_set_soft_state
+sun4v_mach_set_soft_state:
+       mov     HV_FAST_MACH_SET_SOFT_STATE, %o5
+       ta      HV_FAST_TRAP
+       retl
+        nop
+
+       .globl  sun4v_mach_desc
+sun4v_mach_desc:
+       mov     %o2, %o4
+       mov     HV_FAST_MACH_DESC, %o5
+       ta      HV_FAST_TRAP
+       stx     %o1, [%o4]
+       retl
+        nop