#include <asm/page.h>
+#ifdef CONFIG_HUGETLB_PAGE
+#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
+#endif
+#define HAVE_ARCH_UNMAPPED_AREA
+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
+
#ifndef __ASSEMBLY__
/*
* Page size definition
#define PRTS_MASK 0x1f /* process table size field */
#define PRTB_MASK 0x0ffffffffffff000UL
+/* Number of supported LPID bits */
+extern unsigned int mmu_lpid_bits;
+
/* Number of supported PID bits */
extern unsigned int mmu_pid_bits;
#define PRTB_SIZE_SHIFT (mmu_pid_bits + 4)
#define PRTB_ENTRIES (1ul << mmu_pid_bits)
-/*
- * Power9 currently only support 64K partition table size.
- */
-#define PATB_SIZE_SHIFT 16
+#define PATB_SIZE_SHIFT (mmu_lpid_bits + 4)
+#define PATB_ENTRIES (1ul << mmu_lpid_bits)
typedef unsigned long mm_context_id_t;
struct spinlock;
* from EA and new context ids to build the new VAs.
*/
mm_context_id_t id;
+#ifdef CONFIG_PPC_64S_HASH_MMU
mm_context_id_t extended_id[TASK_SIZE_USER64/TASK_CONTEXT_SIZE];
+#endif
};
/* Number of bits in the mm_cpumask */
/* Number of user space windows opened in process mm_context */
atomic_t vas_windows;
+#ifdef CONFIG_PPC_64S_HASH_MMU
struct hash_mm_context *hash_context;
+#endif
void __user *vdso;
/*
#endif
} mm_context_t;
+#ifdef CONFIG_PPC_64S_HASH_MMU
static inline u16 mm_ctx_user_psize(mm_context_t *ctx)
{
return ctx->hash_context->user_psize;
extern int mmu_linear_psize;
extern int mmu_virtual_psize;
extern int mmu_vmalloc_psize;
-extern int mmu_vmemmap_psize;
extern int mmu_io_psize;
+#else /* CONFIG_PPC_64S_HASH_MMU */
+#ifdef CONFIG_PPC_64K_PAGES
+#define mmu_virtual_psize MMU_PAGE_64K
+#else
+#define mmu_virtual_psize MMU_PAGE_4K
+#endif
+#endif
+extern int mmu_vmemmap_psize;
/* MMU initialization */
void mmu_early_init_devtree(void);
* know which translations we will pick. Hence go with hash
* restrictions.
*/
- return hash__setup_initial_memory_limit(first_memblock_base,
- first_memblock_size);
+ if (!early_radix_enabled())
+ hash__setup_initial_memory_limit(first_memblock_base,
+ first_memblock_size);
}
#ifdef CONFIG_PPC_PSERIES
void cleanup_cpu_mmu_context(void);
#endif
+#ifdef CONFIG_PPC_64S_HASH_MMU
static inline int get_user_context(mm_context_t *ctx, unsigned long ea)
{
int index = ea >> MAX_EA_BITS_PER_CONTEXT;
return get_vsid(context, ea, ssize);
}
+#endif
#endif /* __ASSEMBLY__ */
#endif /* _ASM_POWERPC_BOOK3S_64_MMU_H_ */