[PATCH 3/4] [POWERPC] Move the iSeries exception vectors
Stephen Rothwell
sfr at canb.auug.org.au
Tue Aug 21 14:45:38 EST 2007
out of head_64.S and into platforms/iseries/head.S
Signed-off-by: Stephen Rothwell <sfr at canb.auug.org.au>
---
arch/powerpc/kernel/head_64.S | 136 ---------------------------------
arch/powerpc/platforms/iseries/head.S | 136 +++++++++++++++++++++++++++++++++
2 files changed, 136 insertions(+), 136 deletions(-)
Built for iseries_defconfig, pseries_defconfig, ppc64_defconfig,
allmodconfig and booted on iSeries 270 for iseries_defconfig and
ppc64_defconfig.
--
Cheers,
Stephen Rothwell sfr at canb.auug.org.au
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index fe6122b..33c4e8c 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -358,142 +358,6 @@ 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 */
-
/*** Common interrupt handlers ***/
STD_EXCEPTION_COMMON(0x100, system_reset, .system_reset_exception)
diff --git a/arch/powerpc/platforms/iseries/head.S b/arch/powerpc/platforms/iseries/head.S
index b6e2f8c..b5f6006 100644
--- a/arch/powerpc/platforms/iseries/head.S
+++ b/arch/powerpc/platforms/iseries/head.S
@@ -30,6 +30,8 @@
#include <asm/asm-offsets.h>
#include <asm/thread_info.h>
#include <asm/ptrace.h>
+#include <asm/exception.h>
+#include <asm/cputable.h>
.text
@@ -83,6 +85,140 @@ iSeries_secondary_smp_loop:
b 1b /* If SMP not configured, secondaries
* loop forever */
+/*** 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 */
+
_INIT_STATIC(__start_initialization_iSeries)
/* Clear out the BSS */
LOAD_REG_IMMEDIATE(r11,__bss_stop)
--
1.5.2.4
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