diff options
Diffstat (limited to 'arch/sparc64/kernel/hvtramp.S')
-rw-r--r-- | arch/sparc64/kernel/hvtramp.S | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/arch/sparc64/kernel/hvtramp.S b/arch/sparc64/kernel/hvtramp.S deleted file mode 100644 index 0236c43..0000000 --- a/arch/sparc64/kernel/hvtramp.S +++ /dev/null @@ -1,139 +0,0 @@ -/* hvtramp.S: Hypervisor start-cpu trampoline code. - * - * Copyright (C) 2007 David S. Miller <davem@davemloft.net> - */ - -#include <linux/init.h> - -#include <asm/thread_info.h> -#include <asm/hypervisor.h> -#include <asm/scratchpad.h> -#include <asm/spitfire.h> -#include <asm/hvtramp.h> -#include <asm/pstate.h> -#include <asm/ptrace.h> -#include <asm/head.h> -#include <asm/asi.h> - - __CPUINIT - .align 8 - .globl hv_cpu_startup, hv_cpu_startup_end - - /* This code executes directly out of the hypervisor - * with physical addressing (va==pa). %o0 contains - * our client argument which for Linux points to - * a descriptor data structure which defines the - * MMU entries we need to load up. - * - * After we set things up we enable the MMU and call - * into the kernel. - * - * First setup basic privileged cpu state. - */ -hv_cpu_startup: - SET_GL(0) - wrpr %g0, 15, %pil - wrpr %g0, 0, %canrestore - wrpr %g0, 0, %otherwin - wrpr %g0, 6, %cansave - wrpr %g0, 6, %cleanwin - wrpr %g0, 0, %cwp - wrpr %g0, 0, %wstate - wrpr %g0, 0, %tl - - sethi %hi(sparc64_ttable_tl0), %g1 - wrpr %g1, %tba - - mov %o0, %l0 - - lduw [%l0 + HVTRAMP_DESCR_CPU], %g1 - mov SCRATCHPAD_CPUID, %g2 - stxa %g1, [%g2] ASI_SCRATCHPAD - - ldx [%l0 + HVTRAMP_DESCR_FAULT_INFO_VA], %g2 - stxa %g2, [%g0] ASI_SCRATCHPAD - - mov 0, %l1 - lduw [%l0 + HVTRAMP_DESCR_NUM_MAPPINGS], %l2 - add %l0, HVTRAMP_DESCR_MAPS, %l3 - -1: ldx [%l3 + HVTRAMP_MAPPING_VADDR], %o0 - clr %o1 - ldx [%l3 + HVTRAMP_MAPPING_TTE], %o2 - mov HV_MMU_IMMU | HV_MMU_DMMU, %o3 - mov HV_FAST_MMU_MAP_PERM_ADDR, %o5 - ta HV_FAST_TRAP - - brnz,pn %o0, 80f - nop - - add %l1, 1, %l1 - cmp %l1, %l2 - blt,a,pt %xcc, 1b - add %l3, HVTRAMP_MAPPING_SIZE, %l3 - - ldx [%l0 + HVTRAMP_DESCR_FAULT_INFO_PA], %o0 - mov HV_FAST_MMU_FAULT_AREA_CONF, %o5 - ta HV_FAST_TRAP - - brnz,pn %o0, 80f - nop - - wrpr %g0, (PSTATE_PRIV | PSTATE_PEF), %pstate - - ldx [%l0 + HVTRAMP_DESCR_THREAD_REG], %l6 - - mov 1, %o0 - set 1f, %o1 - mov HV_FAST_MMU_ENABLE, %o5 - ta HV_FAST_TRAP - - ba,pt %xcc, 80f - nop - -1: - wr %g0, 0, %fprs - wr %g0, ASI_P, %asi - - mov PRIMARY_CONTEXT, %g7 - stxa %g0, [%g7] ASI_MMU - membar #Sync - - mov SECONDARY_CONTEXT, %g7 - stxa %g0, [%g7] ASI_MMU - membar #Sync - - mov %l6, %g6 - ldx [%g6 + TI_TASK], %g4 - - mov 1, %g5 - sllx %g5, THREAD_SHIFT, %g5 - sub %g5, (STACKFRAME_SZ + STACK_BIAS), %g5 - add %g6, %g5, %sp - mov 0, %fp - - call init_irqwork_curcpu - nop - call hard_smp_processor_id - nop - - call sun4v_register_mondo_queues - nop - - call init_cur_cpu_trap - mov %g6, %o0 - - wrpr %g0, (PSTATE_PRIV | PSTATE_PEF | PSTATE_IE), %pstate - - call smp_callin - nop - call cpu_idle - mov 0, %o0 - call cpu_panic - nop - -80: ba,pt %xcc, 80b - nop - - .align 8 -hv_cpu_startup_end: |