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-rw-r--r--arch/sparc64/kernel/entry.S331
1 files changed, 232 insertions, 99 deletions
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index a73553ae7e5..6d0b3ed77a0 100644
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -50,7 +50,8 @@ do_fpdis:
add %g0, %g0, %g0
ba,a,pt %xcc, rtrap_clr_l6
-1: ldub [%g6 + TI_FPSAVED], %g5
+1: TRAP_LOAD_THREAD_REG(%g6, %g1)
+ ldub [%g6 + TI_FPSAVED], %g5
wr %g0, FPRS_FEF, %fprs
andcc %g5, FPRS_FEF, %g0
be,a,pt %icc, 1f
@@ -96,10 +97,22 @@ do_fpdis:
add %g6, TI_FPREGS + 0x80, %g1
faddd %f0, %f2, %f4
fmuld %f0, %f2, %f6
- ldxa [%g3] ASI_DMMU, %g5
+
+661: ldxa [%g3] ASI_DMMU, %g5
+ .section .sun4v_1insn_patch, "ax"
+ .word 661b
+ ldxa [%g3] ASI_MMU, %g5
+ .previous
+
sethi %hi(sparc64_kern_sec_context), %g2
ldx [%g2 + %lo(sparc64_kern_sec_context)], %g2
- stxa %g2, [%g3] ASI_DMMU
+
+661: stxa %g2, [%g3] ASI_DMMU
+ .section .sun4v_1insn_patch, "ax"
+ .word 661b
+ stxa %g2, [%g3] ASI_MMU
+ .previous
+
membar #Sync
add %g6, TI_FPREGS + 0xc0, %g2
faddd %f0, %f2, %f8
@@ -125,11 +138,23 @@ do_fpdis:
fzero %f32
mov SECONDARY_CONTEXT, %g3
fzero %f34
- ldxa [%g3] ASI_DMMU, %g5
+
+661: ldxa [%g3] ASI_DMMU, %g5
+ .section .sun4v_1insn_patch, "ax"
+ .word 661b
+ ldxa [%g3] ASI_MMU, %g5
+ .previous
+
add %g6, TI_FPREGS, %g1
sethi %hi(sparc64_kern_sec_context), %g2
ldx [%g2 + %lo(sparc64_kern_sec_context)], %g2
- stxa %g2, [%g3] ASI_DMMU
+
+661: stxa %g2, [%g3] ASI_DMMU
+ .section .sun4v_1insn_patch, "ax"
+ .word 661b
+ stxa %g2, [%g3] ASI_MMU
+ .previous
+
membar #Sync
add %g6, TI_FPREGS + 0x40, %g2
faddd %f32, %f34, %f36
@@ -154,10 +179,22 @@ do_fpdis:
nop
3: mov SECONDARY_CONTEXT, %g3
add %g6, TI_FPREGS, %g1
- ldxa [%g3] ASI_DMMU, %g5
+
+661: ldxa [%g3] ASI_DMMU, %g5
+ .section .sun4v_1insn_patch, "ax"
+ .word 661b
+ ldxa [%g3] ASI_MMU, %g5
+ .previous
+
sethi %hi(sparc64_kern_sec_context), %g2
ldx [%g2 + %lo(sparc64_kern_sec_context)], %g2
- stxa %g2, [%g3] ASI_DMMU
+
+661: stxa %g2, [%g3] ASI_DMMU
+ .section .sun4v_1insn_patch, "ax"
+ .word 661b
+ stxa %g2, [%g3] ASI_MMU
+ .previous
+
membar #Sync
mov 0x40, %g2
membar #Sync
@@ -168,7 +205,13 @@ do_fpdis:
ldda [%g1 + %g2] ASI_BLK_S, %f48
membar #Sync
fpdis_exit:
- stxa %g5, [%g3] ASI_DMMU
+
+661: stxa %g5, [%g3] ASI_DMMU
+ .section .sun4v_1insn_patch, "ax"
+ .word 661b
+ stxa %g5, [%g3] ASI_MMU
+ .previous
+
membar #Sync
fpdis_exit2:
wr %g7, 0, %gsr
@@ -189,6 +232,7 @@ fp_other_bounce:
.globl do_fpother_check_fitos
.align 32
do_fpother_check_fitos:
+ TRAP_LOAD_THREAD_REG(%g6, %g1)
sethi %hi(fp_other_bounce - 4), %g7
or %g7, %lo(fp_other_bounce - 4), %g7
@@ -312,6 +356,7 @@ fitos_emul_fini:
.globl do_fptrap
.align 32
do_fptrap:
+ TRAP_LOAD_THREAD_REG(%g6, %g1)
stx %fsr, [%g6 + TI_XFSR]
do_fptrap_after_fsr:
ldub [%g6 + TI_FPSAVED], %g3
@@ -321,10 +366,22 @@ do_fptrap_after_fsr:
rd %gsr, %g3
stx %g3, [%g6 + TI_GSR]
mov SECONDARY_CONTEXT, %g3
- ldxa [%g3] ASI_DMMU, %g5
+
+661: ldxa [%g3] ASI_DMMU, %g5
+ .section .sun4v_1insn_patch, "ax"
+ .word 661b
+ ldxa [%g3] ASI_MMU, %g5
+ .previous
+
sethi %hi(sparc64_kern_sec_context), %g2
ldx [%g2 + %lo(sparc64_kern_sec_context)], %g2
- stxa %g2, [%g3] ASI_DMMU
+
+661: stxa %g2, [%g3] ASI_DMMU
+ .section .sun4v_1insn_patch, "ax"
+ .word 661b
+ stxa %g2, [%g3] ASI_MMU
+ .previous
+
membar #Sync
add %g6, TI_FPREGS, %g2
andcc %g1, FPRS_DL, %g0
@@ -339,7 +396,13 @@ do_fptrap_after_fsr:
stda %f48, [%g2 + %g3] ASI_BLK_S
5: mov SECONDARY_CONTEXT, %g1
membar #Sync
- stxa %g5, [%g1] ASI_DMMU
+
+661: stxa %g5, [%g1] ASI_DMMU
+ .section .sun4v_1insn_patch, "ax"
+ .word 661b
+ stxa %g5, [%g1] ASI_MMU
+ .previous
+
membar #Sync
ba,pt %xcc, etrap
wr %g0, 0, %fprs
@@ -353,8 +416,6 @@ do_fptrap_after_fsr:
*
* With this method we can do most of the cross-call tlb/cache
* flushing very quickly.
- *
- * Current CPU's IRQ worklist table is locked into %g6, don't touch.
*/
.text
.align 32
@@ -378,6 +439,8 @@ do_ivec:
sllx %g2, %g4, %g2
sllx %g4, 2, %g4
+ TRAP_LOAD_IRQ_WORK(%g6, %g1)
+
lduw [%g6 + %g4], %g5 /* g5 = irq_work(cpu, pil) */
stw %g5, [%g3 + 0x00] /* bucket->irq_chain = g5 */
stw %g3, [%g6 + %g4] /* irq_work(cpu, pil) = bucket */
@@ -399,76 +462,6 @@ do_ivec_xcall:
1: jmpl %g3, %g0
nop
- .globl save_alternate_globals
-save_alternate_globals: /* %o0 = save_area */
- rdpr %pstate, %o5
- andn %o5, PSTATE_IE, %o1
- wrpr %o1, PSTATE_AG, %pstate
- stx %g0, [%o0 + 0x00]
- stx %g1, [%o0 + 0x08]
- stx %g2, [%o0 + 0x10]
- stx %g3, [%o0 + 0x18]
- stx %g4, [%o0 + 0x20]
- stx %g5, [%o0 + 0x28]
- stx %g6, [%o0 + 0x30]
- stx %g7, [%o0 + 0x38]
- wrpr %o1, PSTATE_IG, %pstate
- stx %g0, [%o0 + 0x40]
- stx %g1, [%o0 + 0x48]
- stx %g2, [%o0 + 0x50]
- stx %g3, [%o0 + 0x58]
- stx %g4, [%o0 + 0x60]
- stx %g5, [%o0 + 0x68]
- stx %g6, [%o0 + 0x70]
- stx %g7, [%o0 + 0x78]
- wrpr %o1, PSTATE_MG, %pstate
- stx %g0, [%o0 + 0x80]
- stx %g1, [%o0 + 0x88]
- stx %g2, [%o0 + 0x90]
- stx %g3, [%o0 + 0x98]
- stx %g4, [%o0 + 0xa0]
- stx %g5, [%o0 + 0xa8]
- stx %g6, [%o0 + 0xb0]
- stx %g7, [%o0 + 0xb8]
- wrpr %o5, 0x0, %pstate
- retl
- nop
-
- .globl restore_alternate_globals
-restore_alternate_globals: /* %o0 = save_area */
- rdpr %pstate, %o5
- andn %o5, PSTATE_IE, %o1
- wrpr %o1, PSTATE_AG, %pstate
- ldx [%o0 + 0x00], %g0
- ldx [%o0 + 0x08], %g1
- ldx [%o0 + 0x10], %g2
- ldx [%o0 + 0x18], %g3
- ldx [%o0 + 0x20], %g4
- ldx [%o0 + 0x28], %g5
- ldx [%o0 + 0x30], %g6
- ldx [%o0 + 0x38], %g7
- wrpr %o1, PSTATE_IG, %pstate
- ldx [%o0 + 0x40], %g0
- ldx [%o0 + 0x48], %g1
- ldx [%o0 + 0x50], %g2
- ldx [%o0 + 0x58], %g3
- ldx [%o0 + 0x60], %g4
- ldx [%o0 + 0x68], %g5
- ldx [%o0 + 0x70], %g6
- ldx [%o0 + 0x78], %g7
- wrpr %o1, PSTATE_MG, %pstate
- ldx [%o0 + 0x80], %g0
- ldx [%o0 + 0x88], %g1
- ldx [%o0 + 0x90], %g2
- ldx [%o0 + 0x98], %g3
- ldx [%o0 + 0xa0], %g4
- ldx [%o0 + 0xa8], %g5
- ldx [%o0 + 0xb0], %g6
- ldx [%o0 + 0xb8], %g7
- wrpr %o5, 0x0, %pstate
- retl
- nop
-
.globl getcc, setcc
getcc:
ldx [%o0 + PT_V9_TSTATE], %o1
@@ -488,9 +481,24 @@ setcc:
retl
stx %o1, [%o0 + PT_V9_TSTATE]
- .globl utrap, utrap_ill
-utrap: brz,pn %g1, etrap
+ .globl utrap_trap
+utrap_trap: /* %g3=handler,%g4=level */
+ TRAP_LOAD_THREAD_REG(%g6, %g1)
+ ldx [%g6 + TI_UTRAPS], %g1
+ brnz,pt %g1, invoke_utrap
nop
+
+ ba,pt %xcc, etrap
+ rd %pc, %g7
+ mov %l4, %o1
+ call bad_trap
+ add %sp, PTREGS_OFF, %o0
+ ba,pt %xcc, rtrap
+ clr %l6
+
+invoke_utrap:
+ sllx %g3, 3, %g3
+ ldx [%g1 + %g3], %g1
save %sp, -128, %sp
rdpr %tstate, %l6
rdpr %cwp, %l7
@@ -500,17 +508,6 @@ utrap: brz,pn %g1, etrap
rdpr %tnpc, %l7
wrpr %g1, 0, %tnpc
done
-utrap_ill:
- call bad_trap
- add %sp, PTREGS_OFF, %o0
- ba,pt %xcc, rtrap
- clr %l6
-
- /* XXX Here is stuff we still need to write... -DaveM XXX */
- .globl netbsd_syscall
-netbsd_syscall:
- retl
- nop
/* We need to carefully read the error status, ACK
* the errors, prevent recursive traps, and pass the
@@ -1001,7 +998,7 @@ dcpe_icpe_tl1_common:
* %g3: scratch
* %g4: AFSR
* %g5: AFAR
- * %g6: current thread ptr
+ * %g6: unused, will have current thread ptr after etrap
* %g7: scratch
*/
__cheetah_log_error:
@@ -1539,13 +1536,14 @@ ret_from_syscall:
1: b,pt %xcc, ret_sys_call
ldx [%sp + PTREGS_OFF + PT_V9_I0], %o0
-sparc_exit: wrpr %g0, (PSTATE_RMO | PSTATE_PEF | PSTATE_PRIV), %pstate
+sparc_exit: rdpr %pstate, %g2
+ wrpr %g2, PSTATE_IE, %pstate
rdpr %otherwin, %g1
rdpr %cansave, %g3
add %g3, %g1, %g3
wrpr %g3, 0x0, %cansave
wrpr %g0, 0x0, %otherwin
- wrpr %g0, (PSTATE_RMO | PSTATE_PEF | PSTATE_PRIV | PSTATE_IE), %pstate
+ wrpr %g2, 0x0, %pstate
ba,pt %xcc, sys_exit
stb %g0, [%g6 + TI_WSAVED]
@@ -1690,3 +1688,138 @@ __flushw_user:
restore %g0, %g0, %g0
2: retl
nop
+
+#ifdef CONFIG_SMP
+ .globl hard_smp_processor_id
+hard_smp_processor_id:
+#endif
+ .globl real_hard_smp_processor_id
+real_hard_smp_processor_id:
+ __GET_CPUID(%o0)
+ retl
+ nop
+
+ /* %o0: devhandle
+ * %o1: devino
+ *
+ * returns %o0: sysino
+ */
+ .globl sun4v_devino_to_sysino
+sun4v_devino_to_sysino:
+ mov HV_FAST_INTR_DEVINO2SYSINO, %o5
+ ta HV_FAST_TRAP
+ retl
+ mov %o1, %o0
+
+ /* %o0: sysino
+ *
+ * returns %o0: intr_enabled (HV_INTR_{DISABLED,ENABLED})
+ */
+ .globl sun4v_intr_getenabled
+sun4v_intr_getenabled:
+ mov HV_FAST_INTR_GETENABLED, %o5
+ ta HV_FAST_TRAP
+ retl
+ mov %o1, %o0
+
+ /* %o0: sysino
+ * %o1: intr_enabled (HV_INTR_{DISABLED,ENABLED})
+ */
+ .globl sun4v_intr_setenabled
+sun4v_intr_setenabled:
+ mov HV_FAST_INTR_SETENABLED, %o5
+ ta HV_FAST_TRAP
+ retl
+ nop
+
+ /* %o0: sysino
+ *
+ * returns %o0: intr_state (HV_INTR_STATE_*)
+ */
+ .globl sun4v_intr_getstate
+sun4v_intr_getstate:
+ mov HV_FAST_INTR_GETSTATE, %o5
+ ta HV_FAST_TRAP
+ retl
+ mov %o1, %o0
+
+ /* %o0: sysino
+ * %o1: intr_state (HV_INTR_STATE_*)
+ */
+ .globl sun4v_intr_setstate
+sun4v_intr_setstate:
+ mov HV_FAST_INTR_SETSTATE, %o5
+ ta HV_FAST_TRAP
+ retl
+ nop
+
+ /* %o0: sysino
+ *
+ * returns %o0: cpuid
+ */
+ .globl sun4v_intr_gettarget
+sun4v_intr_gettarget:
+ mov HV_FAST_INTR_GETTARGET, %o5
+ ta HV_FAST_TRAP
+ retl
+ mov %o1, %o0
+
+ /* %o0: sysino
+ * %o1: cpuid
+ */
+ .globl sun4v_intr_settarget
+sun4v_intr_settarget:
+ mov HV_FAST_INTR_SETTARGET, %o5
+ ta HV_FAST_TRAP
+ retl
+ nop
+
+ /* %o0: type
+ * %o1: queue paddr
+ * %o2: num queue entries
+ *
+ * returns %o0: status
+ */
+ .globl sun4v_cpu_qconf
+sun4v_cpu_qconf:
+ mov HV_FAST_CPU_QCONF, %o5
+ ta HV_FAST_TRAP
+ retl
+ nop
+
+ /* returns %o0: status
+ */
+ .globl sun4v_cpu_yield
+sun4v_cpu_yield:
+ mov HV_FAST_CPU_YIELD, %o5
+ ta HV_FAST_TRAP
+ retl
+ nop
+
+ /* %o0: num cpus in cpu list
+ * %o1: cpu list paddr
+ * %o2: mondo block paddr
+ *
+ * returns %o0: status
+ */
+ .globl sun4v_cpu_mondo_send
+sun4v_cpu_mondo_send:
+ mov HV_FAST_CPU_MONDO_SEND, %o5
+ ta HV_FAST_TRAP
+ retl
+ nop
+
+ /* %o0: CPU ID
+ *
+ * returns %o0: -status if status non-zero, else
+ * %o0: cpu state as HV_CPU_STATE_*
+ */
+ .globl sun4v_cpu_state
+sun4v_cpu_state:
+ mov HV_FAST_CPU_STATE, %o5
+ ta HV_FAST_TRAP
+ brnz,pn %o0, 1f
+ sub %g0, %o0, %o0
+ mov %o1, %o0
+1: retl
+ nop
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