X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fppc%2Fkernel%2Fhead_4xx.S;h=10c261c6702199384dd8aa52444c1d81136f9081;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=6f5d380e234503bb4e48aadc5549cfae9e25bb8e;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git diff --git a/arch/ppc/kernel/head_4xx.S b/arch/ppc/kernel/head_4xx.S index 6f5d380e2..10c261c67 100644 --- a/arch/ppc/kernel/head_4xx.S +++ b/arch/ppc/kernel/head_4xx.S @@ -40,7 +40,7 @@ #include #include #include -#include +#include /* As with the other PowerPC ports, it is expected that when code * execution begins here, the following registers contain valid, yet @@ -245,12 +245,12 @@ label: /* * 0x0100 - Critical Interrupt Exception */ - CRITICAL_EXCEPTION(0x0100, CriticalInterrupt, UnknownException) + CRITICAL_EXCEPTION(0x0100, CriticalInterrupt, unknown_exception) /* * 0x0200 - Machine Check Exception */ - CRITICAL_EXCEPTION(0x0200, MachineCheck, MachineCheckException) + CRITICAL_EXCEPTION(0x0200, MachineCheck, machine_check_exception) /* * 0x0300 - Data Storage Exception @@ -291,8 +291,9 @@ label: /* If we are faulting a kernel address, we have to use the * kernel page tables. */ - andis. r11, r10, 0x8000 - beq 3f + lis r11, TASK_SIZE@h + cmplw r10, r11 + blt+ 3f lis r11, swapper_pg_dir@h ori r11, r11, swapper_pg_dir@l li r9, 0 @@ -404,7 +405,7 @@ label: mfspr r4,SPRN_DEAR /* Grab the DEAR and save it */ stw r4,_DEAR(r11) addi r3,r1,STACK_FRAME_OVERHEAD - EXC_XFER_EE(0x600, AlignmentException) + EXC_XFER_EE(0x600, alignment_exception) /* 0x0700 - Program Exception */ START_EXCEPTION(0x0700, ProgramCheck) @@ -412,21 +413,21 @@ label: mfspr r4,SPRN_ESR /* Grab the ESR and save it */ stw r4,_ESR(r11) addi r3,r1,STACK_FRAME_OVERHEAD - EXC_XFER_STD(0x700, ProgramCheckException) + EXC_XFER_STD(0x700, program_check_exception) - EXCEPTION(0x0800, Trap_08, UnknownException, EXC_XFER_EE) - EXCEPTION(0x0900, Trap_09, UnknownException, EXC_XFER_EE) - EXCEPTION(0x0A00, Trap_0A, UnknownException, EXC_XFER_EE) - EXCEPTION(0x0B00, Trap_0B, UnknownException, EXC_XFER_EE) + EXCEPTION(0x0800, Trap_08, unknown_exception, EXC_XFER_EE) + EXCEPTION(0x0900, Trap_09, unknown_exception, EXC_XFER_EE) + EXCEPTION(0x0A00, Trap_0A, unknown_exception, EXC_XFER_EE) + EXCEPTION(0x0B00, Trap_0B, unknown_exception, EXC_XFER_EE) /* 0x0C00 - System Call Exception */ START_EXCEPTION(0x0C00, SystemCall) NORMAL_EXCEPTION_PROLOG EXC_XFER_EE_LITE(0xc00, DoSyscall) - EXCEPTION(0x0D00, Trap_0D, UnknownException, EXC_XFER_EE) - EXCEPTION(0x0E00, Trap_0E, UnknownException, EXC_XFER_EE) - EXCEPTION(0x0F00, Trap_0F, UnknownException, EXC_XFER_EE) + EXCEPTION(0x0D00, Trap_0D, unknown_exception, EXC_XFER_EE) + EXCEPTION(0x0E00, Trap_0E, unknown_exception, EXC_XFER_EE) + EXCEPTION(0x0F00, Trap_0F, unknown_exception, EXC_XFER_EE) /* 0x1000 - Programmable Interval Timer (PIT) Exception */ START_EXCEPTION(0x1000, Decrementer) @@ -443,12 +444,15 @@ label: /* 0x1010 - Fixed Interval Timer (FIT) Exception */ - STND_EXCEPTION(0x1010, FITException, UnknownException) + STND_EXCEPTION(0x1010, FITException, unknown_exception) /* 0x1020 - Watchdog Timer (WDT) Exception */ - - CRITICAL_EXCEPTION(0x1020, WDTException, UnknownException) +#ifdef CONFIG_BOOKE_WDT + CRITICAL_EXCEPTION(0x1020, WDTException, WatchdogException) +#else + CRITICAL_EXCEPTION(0x1020, WDTException, unknown_exception) +#endif #endif /* 0x1100 - Data TLB Miss Exception @@ -479,8 +483,9 @@ label: /* If we are faulting a kernel address, we have to use the * kernel page tables. */ - andis. r11, r10, 0x8000 - beq 3f + lis r11, TASK_SIZE@h + cmplw r10, r11 + blt+ 3f lis r11, swapper_pg_dir@h ori r11, r11, swapper_pg_dir@l li r9, 0 @@ -578,8 +583,9 @@ label: /* If we are faulting a kernel address, we have to use the * kernel page tables. */ - andis. r11, r10, 0x8000 - beq 3f + lis r11, TASK_SIZE@h + cmplw r10, r11 + blt+ 3f lis r11, swapper_pg_dir@h ori r11, r11, swapper_pg_dir@l li r9, 0 @@ -650,25 +656,25 @@ label: mfspr r10, SPRN_SPRG0 b InstructionAccess - EXCEPTION(0x1300, Trap_13, UnknownException, EXC_XFER_EE) - EXCEPTION(0x1400, Trap_14, UnknownException, EXC_XFER_EE) - EXCEPTION(0x1500, Trap_15, UnknownException, EXC_XFER_EE) - EXCEPTION(0x1600, Trap_16, UnknownException, EXC_XFER_EE) + EXCEPTION(0x1300, Trap_13, unknown_exception, EXC_XFER_EE) + EXCEPTION(0x1400, Trap_14, unknown_exception, EXC_XFER_EE) + EXCEPTION(0x1500, Trap_15, unknown_exception, EXC_XFER_EE) + EXCEPTION(0x1600, Trap_16, unknown_exception, EXC_XFER_EE) #ifdef CONFIG_IBM405_ERR51 /* 405GP errata 51 */ START_EXCEPTION(0x1700, Trap_17) b DTLBMiss #else - EXCEPTION(0x1700, Trap_17, UnknownException, EXC_XFER_EE) + EXCEPTION(0x1700, Trap_17, unknown_exception, EXC_XFER_EE) #endif - EXCEPTION(0x1800, Trap_18, UnknownException, EXC_XFER_EE) - EXCEPTION(0x1900, Trap_19, UnknownException, EXC_XFER_EE) - EXCEPTION(0x1A00, Trap_1A, UnknownException, EXC_XFER_EE) - EXCEPTION(0x1B00, Trap_1B, UnknownException, EXC_XFER_EE) - EXCEPTION(0x1C00, Trap_1C, UnknownException, EXC_XFER_EE) - EXCEPTION(0x1D00, Trap_1D, UnknownException, EXC_XFER_EE) - EXCEPTION(0x1E00, Trap_1E, UnknownException, EXC_XFER_EE) - EXCEPTION(0x1F00, Trap_1F, UnknownException, EXC_XFER_EE) + EXCEPTION(0x1800, Trap_18, unknown_exception, EXC_XFER_EE) + EXCEPTION(0x1900, Trap_19, unknown_exception, EXC_XFER_EE) + EXCEPTION(0x1A00, Trap_1A, unknown_exception, EXC_XFER_EE) + EXCEPTION(0x1B00, Trap_1B, unknown_exception, EXC_XFER_EE) + EXCEPTION(0x1C00, Trap_1C, unknown_exception, EXC_XFER_EE) + EXCEPTION(0x1D00, Trap_1D, unknown_exception, EXC_XFER_EE) + EXCEPTION(0x1E00, Trap_1E, unknown_exception, EXC_XFER_EE) + EXCEPTION(0x1F00, Trap_1F, unknown_exception, EXC_XFER_EE) /* Check for a single step debug exception while in an exception * handler before state has been saved. This is to catch the case @@ -982,10 +988,14 @@ _GLOBAL(set_context) * goes at the beginning of the data segment, which is page-aligned. */ .data -_GLOBAL(sdata) -_GLOBAL(empty_zero_page) + .align 12 + .globl sdata +sdata: + .globl empty_zero_page +empty_zero_page: .space 4096 -_GLOBAL(swapper_pg_dir) + .globl swapper_pg_dir +swapper_pg_dir: .space 4096 @@ -995,12 +1005,14 @@ _GLOBAL(swapper_pg_dir) exception_stack_bottom: .space 4096 critical_stack_top: -_GLOBAL(exception_stack_top) + .globl exception_stack_top +exception_stack_top: /* This space gets a copy of optional info passed to us by the bootstrap * which is used to pass parameters into the kernel like root=/dev/sda1, etc. */ -_GLOBAL(cmd_line) + .globl cmd_line +cmd_line: .space 512 /* Room for two PTE pointers, usually the kernel and current user pointers