summaryrefslogtreecommitdiffstats
path: root/arch/sparc64/kernel/hvtramp.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sparc64/kernel/hvtramp.S')
-rw-r--r--arch/sparc64/kernel/hvtramp.S139
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 0236c43772fa..000000000000
--- 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:
OpenPOWER on IntegriCloud