[POWERPC] Implement {read,update}_persistent_clock
[safe/jmp/linux-2.6] / arch / powerpc / kernel / head_64.S
index fe6122b..22ac245 100644 (file)
@@ -341,6 +341,7 @@ slb_miss_user_pseries:
        b       .                               /* prevent spec. execution */
 #endif /* __DISABLED__ */
 
+#ifdef CONFIG_PPC_PSERIES
 /*
  * Vectors for the FWNMI option.  Share common code.
  */
@@ -358,141 +359,7 @@ machine_check_fwnmi:
        mtspr   SPRN_SPRG1,r13          /* save r13 */
        EXCEPTION_PROLOG_PSERIES_FORCE_64BIT(PACA_EXMC, machine_check_common)
 
-#ifdef CONFIG_PPC_ISERIES
-/***  ISeries-LPAR interrupt handlers ***/
-
-       STD_EXCEPTION_ISERIES(0x200, machine_check, PACA_EXMC)
-
-       .globl data_access_iSeries
-data_access_iSeries:
-       mtspr   SPRN_SPRG1,r13
-BEGIN_FTR_SECTION
-       mtspr   SPRN_SPRG2,r12
-       mfspr   r13,SPRN_DAR
-       mfspr   r12,SPRN_DSISR
-       srdi    r13,r13,60
-       rlwimi  r13,r12,16,0x20
-       mfcr    r12
-       cmpwi   r13,0x2c
-       beq     .do_stab_bolted_iSeries
-       mtcrf   0x80,r12
-       mfspr   r12,SPRN_SPRG2
-END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
-       EXCEPTION_PROLOG_ISERIES_1(PACA_EXGEN)
-       EXCEPTION_PROLOG_ISERIES_2
-       b       data_access_common
-
-.do_stab_bolted_iSeries:
-       mtcrf   0x80,r12
-       mfspr   r12,SPRN_SPRG2
-       EXCEPTION_PROLOG_ISERIES_1(PACA_EXSLB)
-       EXCEPTION_PROLOG_ISERIES_2
-       b       .do_stab_bolted
-
-       .globl  data_access_slb_iSeries
-data_access_slb_iSeries:
-       mtspr   SPRN_SPRG1,r13          /* save r13 */
-       mfspr   r13,SPRN_SPRG3          /* get paca address into r13 */
-       std     r3,PACA_EXSLB+EX_R3(r13)
-       mfspr   r3,SPRN_DAR
-       std     r9,PACA_EXSLB+EX_R9(r13)
-       mfcr    r9
-#ifdef __DISABLED__
-       cmpdi   r3,0
-       bge     slb_miss_user_iseries
-#endif
-       std     r10,PACA_EXSLB+EX_R10(r13)
-       std     r11,PACA_EXSLB+EX_R11(r13)
-       std     r12,PACA_EXSLB+EX_R12(r13)
-       mfspr   r10,SPRN_SPRG1
-       std     r10,PACA_EXSLB+EX_R13(r13)
-       ld      r12,PACALPPACAPTR(r13)
-       ld      r12,LPPACASRR1(r12)
-       b       .slb_miss_realmode
-
-       STD_EXCEPTION_ISERIES(0x400, instruction_access, PACA_EXGEN)
-
-       .globl  instruction_access_slb_iSeries
-instruction_access_slb_iSeries:
-       mtspr   SPRN_SPRG1,r13          /* save r13 */
-       mfspr   r13,SPRN_SPRG3          /* get paca address into r13 */
-       std     r3,PACA_EXSLB+EX_R3(r13)
-       ld      r3,PACALPPACAPTR(r13)
-       ld      r3,LPPACASRR0(r3)       /* get SRR0 value */
-       std     r9,PACA_EXSLB+EX_R9(r13)
-       mfcr    r9
-#ifdef __DISABLED__
-       cmpdi   r3,0
-       bge     .slb_miss_user_iseries
-#endif
-       std     r10,PACA_EXSLB+EX_R10(r13)
-       std     r11,PACA_EXSLB+EX_R11(r13)
-       std     r12,PACA_EXSLB+EX_R12(r13)
-       mfspr   r10,SPRN_SPRG1
-       std     r10,PACA_EXSLB+EX_R13(r13)
-       ld      r12,PACALPPACAPTR(r13)
-       ld      r12,LPPACASRR1(r12)
-       b       .slb_miss_realmode
-
-#ifdef __DISABLED__
-slb_miss_user_iseries:
-       std     r10,PACA_EXGEN+EX_R10(r13)
-       std     r11,PACA_EXGEN+EX_R11(r13)
-       std     r12,PACA_EXGEN+EX_R12(r13)
-       mfspr   r10,SPRG1
-       ld      r11,PACA_EXSLB+EX_R9(r13)
-       ld      r12,PACA_EXSLB+EX_R3(r13)
-       std     r10,PACA_EXGEN+EX_R13(r13)
-       std     r11,PACA_EXGEN+EX_R9(r13)
-       std     r12,PACA_EXGEN+EX_R3(r13)
-       EXCEPTION_PROLOG_ISERIES_2
-       b       slb_miss_user_common
-#endif
-
-       MASKABLE_EXCEPTION_ISERIES(0x500, hardware_interrupt)
-       STD_EXCEPTION_ISERIES(0x600, alignment, PACA_EXGEN)
-       STD_EXCEPTION_ISERIES(0x700, program_check, PACA_EXGEN)
-       STD_EXCEPTION_ISERIES(0x800, fp_unavailable, PACA_EXGEN)
-       MASKABLE_EXCEPTION_ISERIES(0x900, decrementer)
-       STD_EXCEPTION_ISERIES(0xa00, trap_0a, PACA_EXGEN)
-       STD_EXCEPTION_ISERIES(0xb00, trap_0b, PACA_EXGEN)
-
-       .globl  system_call_iSeries
-system_call_iSeries:
-       mr      r9,r13
-       mfspr   r13,SPRN_SPRG3
-       EXCEPTION_PROLOG_ISERIES_2
-       b       system_call_common
-
-       STD_EXCEPTION_ISERIES( 0xd00, single_step, PACA_EXGEN)
-       STD_EXCEPTION_ISERIES( 0xe00, trap_0e, PACA_EXGEN)
-       STD_EXCEPTION_ISERIES( 0xf00, performance_monitor, PACA_EXGEN)
-
-decrementer_iSeries_masked:
-       /* We may not have a valid TOC pointer in here. */
-       li      r11,1
-       ld      r12,PACALPPACAPTR(r13)
-       stb     r11,LPPACADECRINT(r12)
-       LOAD_REG_IMMEDIATE(r12, tb_ticks_per_jiffy)
-       lwz     r12,0(r12)
-       mtspr   SPRN_DEC,r12
-       /* fall through */
-
-hardware_interrupt_iSeries_masked:
-       mtcrf   0x80,r9         /* Restore regs */
-       ld      r12,PACALPPACAPTR(r13)
-       ld      r11,LPPACASRR0(r12)
-       ld      r12,LPPACASRR1(r12)
-       mtspr   SPRN_SRR0,r11
-       mtspr   SPRN_SRR1,r12
-       ld      r9,PACA_EXGEN+EX_R9(r13)
-       ld      r10,PACA_EXGEN+EX_R10(r13)
-       ld      r11,PACA_EXGEN+EX_R11(r13)
-       ld      r12,PACA_EXGEN+EX_R12(r13)
-       ld      r13,PACA_EXGEN+EX_R13(r13)
-       rfid
-       b       .       /* prevent speculative execution */
-#endif /* CONFIG_PPC_ISERIES */
+#endif /* CONFIG_PPC_PSERIES */
 
 /*** Common interrupt handlers ***/
 
@@ -792,7 +659,9 @@ hardware_interrupt_common:
        FINISH_NAP
 hardware_interrupt_entry:
        DISABLE_INTS
+BEGIN_FTR_SECTION
        bl      .ppc64_runlatch_on
+END_FTR_SECTION_IFSET(CPU_FTR_CTRL)
        addi    r3,r1,STACK_FRAME_OVERHEAD
        bl      .do_IRQ
        b       .ret_from_except_lite
@@ -1146,6 +1015,7 @@ _GLOBAL(do_stab_bolted)
 initial_stab:
        .space  4096
 
+#ifdef CONFIG_PPC_PSERIES
 /*
  * Data area reserved for FWNMI option.
  * This address (0x7000) is fixed by the RPA.
@@ -1153,6 +1023,7 @@ initial_stab:
        .= 0x7000
        .globl fwnmi_data_area
 fwnmi_data_area:
+#endif /* CONFIG_PPC_PSERIES */
 
        /* iSeries does not use the FWNMI stuff, so it is safe to put
         * this here, even if we later allow kernels that will boot on
@@ -1177,7 +1048,9 @@ xLparMap:
 
 #endif /* CONFIG_PPC_ISERIES */
 
+#ifdef CONFIG_PPC_PSERIES
         . = 0x8000
+#endif /* CONFIG_PPC_PSERIES */
 
 /*
  * On pSeries and most other platforms, secondary processors spin
@@ -1673,12 +1546,4 @@ empty_zero_page:
 
        .globl  swapper_pg_dir
 swapper_pg_dir:
-       .space  PAGE_SIZE
-
-/*
- * This space gets a copy of optional info passed to us by the bootstrap
- * Used to pass parameters into the kernel like root=/dev/sda1, etc.
- */
-       .globl  cmd_line
-cmd_line:
-       .space  COMMAND_LINE_SIZE
+       .space  PGD_TABLE_SIZE