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Diffstat (limited to 'arch/powerpc/include/asm/paca.h')
-rw-r--r--arch/powerpc/include/asm/paca.h29
1 files changed, 28 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index 70bd4381f..546540b91 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -16,6 +16,7 @@
#ifdef CONFIG_PPC64
+#include <linux/string.h>
#include <asm/types.h>
#include <asm/lppaca.h>
#include <asm/mmu.h>
@@ -131,7 +132,16 @@ struct paca_struct {
struct tlb_core_data tcd;
#endif /* CONFIG_PPC_BOOK3E */
- mm_context_t context;
+#ifdef CONFIG_PPC_BOOK3S
+ mm_context_id_t mm_ctx_id;
+#ifdef CONFIG_PPC_MM_SLICES
+ u64 mm_ctx_low_slices_psize;
+ unsigned char mm_ctx_high_slices_psize[SLICE_ARRAY_SIZE];
+#else
+ u16 mm_ctx_user_psize;
+ u16 mm_ctx_sllp;
+#endif
+#endif
/*
* then miscellaneous read-write fields
@@ -194,6 +204,23 @@ struct paca_struct {
#endif
};
+#ifdef CONFIG_PPC_BOOK3S
+static inline void copy_mm_to_paca(mm_context_t *context)
+{
+ get_paca()->mm_ctx_id = context->id;
+#ifdef CONFIG_PPC_MM_SLICES
+ get_paca()->mm_ctx_low_slices_psize = context->low_slices_psize;
+ memcpy(&get_paca()->mm_ctx_high_slices_psize,
+ &context->high_slices_psize, SLICE_ARRAY_SIZE);
+#else
+ get_paca()->mm_ctx_user_psize = context->user_psize;
+ get_paca()->mm_ctx_sllp = context->sllp;
+#endif
+}
+#else
+static inline void copy_mm_to_paca(mm_context_t *context){}
+#endif
+
extern struct paca_struct *paca;
extern void initialise_paca(struct paca_struct *new_paca, int cpu);
extern void setup_paca(struct paca_struct *new_paca);