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powerpc: More work to support HV exceptions

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Rework exception macros a bit to split offset from vector and add
some basic support for HDEC, HDSI, HISI and a few more.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Benjamin Herrenschmidt
2011-04-05 14:27:11 +10:00
parent a5d4f3ad3a
commit b3e6b5dfcf
3 changed files with 89 additions and 42 deletions
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37
arch/powerpc/include/asm/exception-64s.h
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@ -150,28 +150,27 @@
/*
* Exception vectors.
*/
#define STD_EXCEPTION_PSERIES(n, label) \
. = n; \
#define STD_EXCEPTION_PSERIES(loc, vec, label) \
. = loc; \
.globl label##_pSeries; \
label##_pSeries: \
HMT_MEDIUM; \
DO_KVM n; \
DO_KVM vec; \
mtspr SPRN_SPRG_SCRATCH0,r13; /* save r13 */ \
EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common, EXC_STD)
#define HSTD_EXCEPTION_PSERIES(n, label) \
. = n; \
.globl label##_pSeries; \
label##_pSeries: \
#define STD_EXCEPTION_HV(loc, vec, label) \
. = loc; \
.globl label##_hv; \
label##_hv: \
HMT_MEDIUM; \
DO_KVM n; \
DO_KVM vec; \
mtspr SPRN_SPRG_HSCRATCH0,r13;/* save r13 */ \
EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common, EXC_HV)
#define __MASKABLE_EXCEPTION_PSERIES(n, label, h) \
#define __MASKABLE_EXCEPTION_PSERIES(vec, label, h) \
HMT_MEDIUM; \
DO_KVM n; \
DO_KVM vec; \
mtspr SPRN_SPRG_##h##SCRATCH0,r13; /* save r13 */ \
GET_PACA(r13); \
std r9,PACA_EXGEN+EX_R9(r13); /* save r9, r10 */ \
@ -193,8 +192,20 @@ label##_pSeries: \
mtspr SPRN_##h##SRR1,r10; \
h##rfid; \
b . /* prevent speculative execution */
#define MASKABLE_EXCEPTION_PSERIES(n, label, h) \
__MASKABLE_EXCEPTION_PSERIES(n, label, h)
#define _MASKABLE_EXCEPTION_PSERIES(vec, label, h) \
__MASKABLE_EXCEPTION_PSERIES(vec, label, h)
#define MASKABLE_EXCEPTION_PSERIES(loc, vec, label) \
. = loc; \
.globl label##_pSeries; \
label##_pSeries: \
_MASKABLE_EXCEPTION_PSERIES(vec, label, EXC_STD)
#define MASKABLE_EXCEPTION_HV(loc, vec, label) \
. = loc; \
.globl label##_hv; \
label##_hv: \
_MASKABLE_EXCEPTION_PSERIES(vec, label, EXC_HV)
#ifdef CONFIG_PPC_ISERIES
#define DISABLE_INTS \