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powerpc: Put exception configuration in a common place

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The various calls to establish exception endianness and AIL are
now done from a single point using already established CPU and FW
feature bits to decide what to do.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Benjamin Herrenschmidt
2016-07-05 15:03:49 +10:00
committed by Michael Ellerman
parent 3808a88985
commit d3cbff1b5a
8 changed files with 108 additions and 103 deletions
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11
arch/powerpc/include/asm/hvcall.h
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@@ -431,17 +431,6 @@ static inline unsigned long cmo_get_page_size(void)
{
return CMO_PageSize;
}
extern long pSeries_enable_reloc_on_exc(void);
extern long pSeries_disable_reloc_on_exc(void);
extern long pseries_big_endian_exceptions(void);
#else
#define pSeries_enable_reloc_on_exc() do {} while (0)
#define pSeries_disable_reloc_on_exc() do {} while (0)
#endif /* CONFIG_PPC_PSERIES */
#endif /* __ASSEMBLY__ */

1
arch/powerpc/include/asm/opal.h
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@@ -234,6 +234,7 @@ extern int early_init_dt_scan_opal(unsigned long node, const char *uname,
int depth, void *data);
extern int early_init_dt_scan_recoverable_ranges(unsigned long node,
const char *uname, int depth, void *data);
extern void opal_configure_cores(void);
extern int opal_get_chars(uint32_t vtermno, char *buf, int count);
extern int opal_put_chars(uint32_t vtermno, const char *buf, int total_len);

12
arch/powerpc/include/asm/setup.h
View File

@@ -26,6 +26,18 @@ void initmem_init(void);
void setup_panic(void);
#define ARCH_PANIC_TIMEOUT 180
#ifdef CONFIG_PPC_PSERIES
extern void pseries_enable_reloc_on_exc(void);
extern void pseries_disable_reloc_on_exc(void);
extern void pseries_big_endian_exceptions(void);
extern void pseries_little_endian_exceptions(void);
#else
static inline void pseries_enable_reloc_on_exc(void) {}
static inline void pseries_disable_reloc_on_exc(void) {}
static inline void pseries_big_endian_exceptions(void) {}
static inline void pseries_little_endian_exceptions(void) {}
#endif /* CONFIG_PPC_PSERIES */
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_POWERPC_SETUP_H */