#define EX_PPR 88 /* SMT thread status register (priority) */
#ifdef CONFIG_RELOCATABLE
-#define EXCEPTION_RELON_PROLOG_PSERIES_1(label, h) \
+#define __EXCEPTION_RELON_PROLOG_PSERIES_1(label, h) \
ld r12,PACAKBASE(r13); /* get high part of &label */ \
mfspr r11,SPRN_##h##SRR0; /* save SRR0 */ \
LOAD_HANDLER(r12,label); \
blr;
#else
/* If not relocatable, we can jump directly -- and save messing with LR */
-#define EXCEPTION_RELON_PROLOG_PSERIES_1(label, h) \
+#define __EXCEPTION_RELON_PROLOG_PSERIES_1(label, h) \
mfspr r11,SPRN_##h##SRR0; /* save SRR0 */ \
mfspr r12,SPRN_##h##SRR1; /* and SRR1 */ \
li r10,MSR_RI; \
mtmsrd r10,1; /* Set RI (EE=0) */ \
b label;
#endif
+#define EXCEPTION_RELON_PROLOG_PSERIES_1(label, h) \
+ __EXCEPTION_RELON_PROLOG_PSERIES_1(label, h) \
/*
* As EXCEPTION_PROLOG_PSERIES(), except we've already got relocation on
* case EXCEPTION_RELON_PROLOG_PSERIES_1 will be using lr.
*/
#define EXCEPTION_RELON_PROLOG_PSERIES(area, label, h, extra, vec) \
+ EXCEPTION_PROLOG_0(area); \
EXCEPTION_PROLOG_1(area, extra, vec); \
EXCEPTION_RELON_PROLOG_PSERIES_1(label, h)
END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,0,942) /*non P7*/
/*
- * Save PPR in paca whenever some register is available to use.
- * Then increase the priority.
+ * Get an SPR into a register if the CPU has the given feature
*/
-#define HMT_MEDIUM_PPR_SAVE(area, ra) \
+#define OPT_GET_SPR(ra, spr, ftr) \
BEGIN_FTR_SECTION_NESTED(943) \
- mfspr ra,SPRN_PPR; \
- std ra,area+EX_PPR(r13); \
- HMT_MEDIUM; \
-END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,943)
+ mfspr ra,spr; \
+END_FTR_SECTION_NESTED(ftr,ftr,943)
-#define __EXCEPTION_PROLOG_1(area, extra, vec) \
+/*
+ * Save a register to the PACA if the CPU has the given feature
+ */
+#define OPT_SAVE_REG_TO_PACA(offset, ra, ftr) \
+BEGIN_FTR_SECTION_NESTED(943) \
+ std ra,offset(r13); \
+END_FTR_SECTION_NESTED(ftr,ftr,943)
+
+#define EXCEPTION_PROLOG_0(area) \
GET_PACA(r13); \
std r9,area+EX_R9(r13); /* save r9 */ \
- HMT_MEDIUM_PPR_SAVE(area, r9); \
+ OPT_GET_SPR(r9, SPRN_PPR, CPU_FTR_HAS_PPR); \
+ HMT_MEDIUM; \
std r10,area+EX_R10(r13); /* save r10 - r12 */ \
- BEGIN_FTR_SECTION_NESTED(66); \
- mfspr r10,SPRN_CFAR; \
- std r10,area+EX_CFAR(r13); \
- END_FTR_SECTION_NESTED(CPU_FTR_CFAR, CPU_FTR_CFAR, 66); \
+ OPT_GET_SPR(r10, SPRN_CFAR, CPU_FTR_CFAR)
+
+#define __EXCEPTION_PROLOG_1(area, extra, vec) \
+ OPT_SAVE_REG_TO_PACA(area+EX_PPR, r9, CPU_FTR_HAS_PPR); \
+ OPT_SAVE_REG_TO_PACA(area+EX_CFAR, r10, CPU_FTR_CFAR); \
SAVE_LR(r10, area); \
mfcr r9; \
extra(vec); \
__EXCEPTION_PROLOG_PSERIES_1(label, h)
#define EXCEPTION_PROLOG_PSERIES(area, label, h, extra, vec) \
+ EXCEPTION_PROLOG_0(area); \
EXCEPTION_PROLOG_1(area, extra, vec); \
EXCEPTION_PROLOG_PSERIES_1(label, h);
EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common, \
EXC_STD, KVMTEST_PR, vec)
+/* Version of above for when we have to branch out-of-line */
+#define STD_EXCEPTION_PSERIES_OOL(vec, label) \
+ .globl label##_pSeries; \
+label##_pSeries: \
+ EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST_PR, vec); \
+ EXCEPTION_PROLOG_PSERIES_1(label##_common, EXC_STD)
+
#define STD_EXCEPTION_HV(loc, vec, label) \
. = loc; \
.globl label##_hv; \
EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common, \
EXC_HV, KVMTEST, vec)
+/* Version of above for when we have to branch out-of-line */
+#define STD_EXCEPTION_HV_OOL(vec, label) \
+ .globl label##_hv; \
+label##_hv: \
+ EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST, vec); \
+ EXCEPTION_PROLOG_PSERIES_1(label##_common, EXC_HV)
+
#define STD_RELON_EXCEPTION_PSERIES(loc, vec, label) \
. = loc; \
.globl label##_relon_pSeries; \
EXCEPTION_RELON_PROLOG_PSERIES(PACA_EXGEN, label##_common, \
EXC_STD, KVMTEST_PR, vec)
+#define STD_RELON_EXCEPTION_PSERIES_OOL(vec, label) \
+ .globl label##_relon_pSeries; \
+label##_relon_pSeries: \
+ EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST_PR, vec); \
+ EXCEPTION_RELON_PROLOG_PSERIES_1(label##_common, EXC_STD)
+
#define STD_RELON_EXCEPTION_HV(loc, vec, label) \
. = loc; \
.globl label##_relon_hv; \
EXCEPTION_RELON_PROLOG_PSERIES(PACA_EXGEN, label##_common, \
EXC_HV, KVMTEST, vec)
+#define STD_RELON_EXCEPTION_HV_OOL(vec, label) \
+ .globl label##_relon_hv; \
+label##_relon_hv: \
+ EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST, vec); \
+ EXCEPTION_RELON_PROLOG_PSERIES_1(label##_common, EXC_HV)
+
/* This associate vector numbers with bits in paca->irq_happened */
#define SOFTEN_VALUE_0x500 PACA_IRQ_EE
#define SOFTEN_VALUE_0x502 PACA_IRQ_EE
#define __MASKABLE_EXCEPTION_PSERIES(vec, label, h, extra) \
HMT_MEDIUM_PPR_DISCARD; \
SET_SCRATCH0(r13); /* save r13 */ \
- __EXCEPTION_PROLOG_1(PACA_EXGEN, extra, vec); \
+ EXCEPTION_PROLOG_0(PACA_EXGEN); \
+ __EXCEPTION_PROLOG_1(PACA_EXGEN, extra, vec); \
EXCEPTION_PROLOG_PSERIES_1(label##_common, h);
+
#define _MASKABLE_EXCEPTION_PSERIES(vec, label, h, extra) \
__MASKABLE_EXCEPTION_PSERIES(vec, label, h, extra)
_MASKABLE_EXCEPTION_PSERIES(vec, label, \
EXC_HV, SOFTEN_TEST_HV)
+#define MASKABLE_EXCEPTION_HV_OOL(vec, label) \
+ .globl label##_hv; \
+label##_hv: \
+ EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_TEST_HV, vec); \
+ EXCEPTION_PROLOG_PSERIES_1(label##_common, EXC_HV);
+
#define __MASKABLE_RELON_EXCEPTION_PSERIES(vec, label, h, extra) \
HMT_MEDIUM_PPR_DISCARD; \
SET_SCRATCH0(r13); /* save r13 */ \
+ EXCEPTION_PROLOG_0(PACA_EXGEN); \
__EXCEPTION_PROLOG_1(PACA_EXGEN, extra, vec); \
EXCEPTION_RELON_PROLOG_PSERIES_1(label##_common, h);
#define _MASKABLE_RELON_EXCEPTION_PSERIES(vec, label, h, extra) \
_MASKABLE_RELON_EXCEPTION_PSERIES(vec, label, \
EXC_HV, SOFTEN_NOTEST_HV)
+#define MASKABLE_RELON_EXCEPTION_HV_OOL(vec, label) \
+ .globl label##_relon_hv; \
+label##_relon_hv: \
+ EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_NOTEST_HV, vec); \
+ EXCEPTION_PROLOG_PSERIES_1(label##_common, EXC_HV);
+
/*
* Our exception common code can be passed various "additions"
* to specify the behaviour of interrupts, whether to kick the
* some code path might still want to branch into the original
* vector
*/
- b machine_check_pSeries
+ HMT_MEDIUM_PPR_DISCARD
+ SET_SCRATCH0(r13) /* save r13 */
+ EXCEPTION_PROLOG_0(PACA_EXMC)
+ b machine_check_pSeries_0
. = 0x300
.globl data_access_pSeries
data_access_slb_pSeries:
HMT_MEDIUM_PPR_DISCARD
SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXSLB)
EXCEPTION_PROLOG_1(PACA_EXSLB, KVMTEST, 0x380)
std r3,PACA_EXSLB+EX_R3(r13)
mfspr r3,SPRN_DAR
instruction_access_slb_pSeries:
HMT_MEDIUM_PPR_DISCARD
SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXSLB)
EXCEPTION_PROLOG_1(PACA_EXSLB, KVMTEST_PR, 0x480)
std r3,PACA_EXSLB+EX_R3(r13)
mfspr r3,SPRN_SRR0 /* SRR0 is faulting address */
*/
. = 0xe00
hv_exception_trampoline:
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b h_data_storage_hv
+
. = 0xe20
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b h_instr_storage_hv
+
. = 0xe40
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b emulation_assist_hv
- . = 0xe50
- b hmi_exception_hv
+
. = 0xe60
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b hmi_exception_hv
+
. = 0xe80
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b h_doorbell_hv
/* We need to deal with the Altivec unavailable exception
*/
performance_monitor_pSeries_1:
. = 0xf00
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b performance_monitor_pSeries
altivec_unavailable_pSeries_1:
. = 0xf20
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b altivec_unavailable_pSeries
vsx_unavailable_pSeries_1:
. = 0xf40
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b vsx_unavailable_pSeries
#ifdef CONFIG_CBE_RAS
denorm_exception_hv:
HMT_MEDIUM_PPR_DISCARD
mtspr SPRN_SPRG_HSCRATCH0,r13
- mfspr r13,SPRN_SPRG_HPACA
- std r9,PACA_EXGEN+EX_R9(r13)
- HMT_MEDIUM_PPR_SAVE(PACA_EXGEN, r9)
- std r10,PACA_EXGEN+EX_R10(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
std r11,PACA_EXGEN+EX_R11(r13)
std r12,PACA_EXGEN+EX_R12(r13)
mfspr r9,SPRN_SPRG_HSCRATCH0
machine_check_fwnmi:
HMT_MEDIUM_PPR_DISCARD
SET_SCRATCH0(r13) /* save r13 */
- EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common,
- EXC_STD, KVMTEST, 0x200)
+ EXCEPTION_PROLOG_0(PACA_EXMC)
+machine_check_pSeries_0:
+ EXCEPTION_PROLOG_1(PACA_EXMC, KVMTEST, 0x200)
+ EXCEPTION_PROLOG_PSERIES_1(machine_check_common, EXC_STD)
KVM_HANDLER_SKIP(PACA_EXMC, EXC_STD, 0x200)
/* moved from 0x300 */
.align 7
/* moved from 0xe00 */
- STD_EXCEPTION_HV(., 0xe02, h_data_storage)
+ STD_EXCEPTION_HV_OOL(0xe02, h_data_storage)
KVM_HANDLER_SKIP(PACA_EXGEN, EXC_HV, 0xe02)
- STD_EXCEPTION_HV(., 0xe22, h_instr_storage)
+ STD_EXCEPTION_HV_OOL(0xe22, h_instr_storage)
KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe22)
- STD_EXCEPTION_HV(., 0xe42, emulation_assist)
+ STD_EXCEPTION_HV_OOL(0xe42, emulation_assist)
KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe42)
- STD_EXCEPTION_HV(., 0xe62, hmi_exception) /* need to flush cache ? */
+ STD_EXCEPTION_HV_OOL(0xe62, hmi_exception) /* need to flush cache ? */
KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe62)
- MASKABLE_EXCEPTION_HV(., 0xe82, h_doorbell)
+ MASKABLE_EXCEPTION_HV_OOL(0xe82, h_doorbell)
KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe82)
/* moved from 0xf00 */
- STD_EXCEPTION_PSERIES(., 0xf00, performance_monitor)
+ STD_EXCEPTION_PSERIES_OOL(0xf00, performance_monitor)
KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xf00)
- STD_EXCEPTION_PSERIES(., 0xf20, altivec_unavailable)
+ STD_EXCEPTION_PSERIES_OOL(0xf20, altivec_unavailable)
KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xf20)
- STD_EXCEPTION_PSERIES(., 0xf40, vsx_unavailable)
+ STD_EXCEPTION_PSERIES_OOL(0xf40, vsx_unavailable)
KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xf40)
/*
. = 0x4380
.globl data_access_slb_relon_pSeries
data_access_slb_relon_pSeries:
- HMT_MEDIUM_PPR_DISCARD
SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXSLB)
EXCEPTION_PROLOG_1(PACA_EXSLB, NOTEST, 0x380)
std r3,PACA_EXSLB+EX_R3(r13)
mfspr r3,SPRN_DAR
. = 0x4480
.globl instruction_access_slb_relon_pSeries
instruction_access_slb_relon_pSeries:
- HMT_MEDIUM_PPR_DISCARD
SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXSLB)
EXCEPTION_PROLOG_1(PACA_EXSLB, NOTEST, 0x480)
std r3,PACA_EXSLB+EX_R3(r13)
mfspr r3,SPRN_SRR0 /* SRR0 is faulting address */
STD_RELON_EXCEPTION_PSERIES(0x4d00, 0xd00, single_step)
. = 0x4e00
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b h_data_storage_relon_hv
. = 0x4e20
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b h_instr_storage_relon_hv
. = 0x4e40
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b emulation_assist_relon_hv
- . = 0x4e50
- b hmi_exception_relon_hv
-
. = 0x4e60
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b hmi_exception_relon_hv
. = 0x4e80
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b h_doorbell_relon_hv
performance_monitor_relon_pSeries_1:
. = 0x4f00
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b performance_monitor_relon_pSeries
altivec_unavailable_relon_pSeries_1:
. = 0x4f20
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b altivec_unavailable_relon_pSeries
vsx_unavailable_relon_pSeries_1:
. = 0x4f40
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
b vsx_unavailable_relon_pSeries
STD_RELON_EXCEPTION_PSERIES(0x5300, 0x1300, instruction_breakpoint)
__end_handlers:
/* Equivalents to the above handlers for relocation-on interrupt vectors */
- STD_RELON_EXCEPTION_HV(., 0xe00, h_data_storage)
+ STD_RELON_EXCEPTION_HV_OOL(0xe00, h_data_storage)
KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe00)
- STD_RELON_EXCEPTION_HV(., 0xe20, h_instr_storage)
+ STD_RELON_EXCEPTION_HV_OOL(0xe20, h_instr_storage)
KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe20)
- STD_RELON_EXCEPTION_HV(., 0xe40, emulation_assist)
+ STD_RELON_EXCEPTION_HV_OOL(0xe40, emulation_assist)
KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe40)
- STD_RELON_EXCEPTION_HV(., 0xe60, hmi_exception)
+ STD_RELON_EXCEPTION_HV_OOL(0xe60, hmi_exception)
KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe60)
- MASKABLE_RELON_EXCEPTION_HV(., 0xe80, h_doorbell)
+ MASKABLE_RELON_EXCEPTION_HV_OOL(0xe80, h_doorbell)
KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe80)
- STD_RELON_EXCEPTION_PSERIES(., 0xf00, performance_monitor)
- STD_RELON_EXCEPTION_PSERIES(., 0xf20, altivec_unavailable)
- STD_RELON_EXCEPTION_PSERIES(., 0xf40, vsx_unavailable)
+ STD_RELON_EXCEPTION_PSERIES_OOL(0xf00, performance_monitor)
+ STD_RELON_EXCEPTION_PSERIES_OOL(0xf20, altivec_unavailable)
+ STD_RELON_EXCEPTION_PSERIES_OOL(0xf40, vsx_unavailable)
#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV)
/*