diff options
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/hash.h | 14 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/pgtable.h | 15 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/radix.h | 68 |
3 files changed, 87 insertions, 10 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/hash.h b/arch/powerpc/include/asm/book3s/64/hash.h index cd3e91583c81..f61cad3de4e6 100644 --- a/arch/powerpc/include/asm/book3s/64/hash.h +++ b/arch/powerpc/include/asm/book3s/64/hash.h @@ -45,17 +45,17 @@ /* * Define the address range of the kernel non-linear virtual area */ -#define KERN_VIRT_START ASM_CONST(0xD000000000000000) -#define KERN_VIRT_SIZE ASM_CONST(0x0000100000000000) +#define H_KERN_VIRT_START ASM_CONST(0xD000000000000000) +#define H_KERN_VIRT_SIZE ASM_CONST(0x0000100000000000) /* * The vmalloc space starts at the beginning of that region, and * occupies half of it on hash CPUs and a quarter of it on Book3E * (we keep a quarter for the virtual memmap) */ -#define VMALLOC_START KERN_VIRT_START -#define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1) -#define VMALLOC_END (VMALLOC_START + VMALLOC_SIZE) +#define H_VMALLOC_START H_KERN_VIRT_START +#define H_VMALLOC_SIZE (H_KERN_VIRT_SIZE >> 1) +#define H_VMALLOC_END (H_VMALLOC_START + H_VMALLOC_SIZE) /* * Region IDs @@ -64,7 +64,7 @@ #define REGION_MASK (0xfUL << REGION_SHIFT) #define REGION_ID(ea) (((unsigned long)(ea)) >> REGION_SHIFT) -#define VMALLOC_REGION_ID (REGION_ID(VMALLOC_START)) +#define VMALLOC_REGION_ID (REGION_ID(H_VMALLOC_START)) #define KERNEL_REGION_ID (REGION_ID(PAGE_OFFSET)) #define VMEMMAP_REGION_ID (0xfUL) /* Server only */ #define USER_REGION_ID (0UL) @@ -73,7 +73,7 @@ * Defines the address of the vmemap area, in its own region on * hash table CPUs. */ -#define VMEMMAP_BASE (VMEMMAP_REGION_ID << REGION_SHIFT) +#define H_VMEMMAP_BASE (VMEMMAP_REGION_ID << REGION_SHIFT) #ifdef CONFIG_PPC_MM_SLICES #define HAVE_ARCH_UNMAPPED_AREA diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index 32a975694e53..f5628f96134b 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -208,6 +208,18 @@ extern unsigned long __pgd_val_bits; #define PUD_MASKED_BITS 0xc0000000000000ffUL /* Bits to mask out from a PGD to get to the PUD page */ #define PGD_MASKED_BITS 0xc0000000000000ffUL + +extern unsigned long __vmalloc_start; +extern unsigned long __vmalloc_end; +#define VMALLOC_START __vmalloc_start +#define VMALLOC_END __vmalloc_end + +extern unsigned long __kernel_virt_start; +extern unsigned long __kernel_virt_size; +#define KERN_VIRT_START __kernel_virt_start +#define KERN_VIRT_SIZE __kernel_virt_size +extern struct page *vmemmap; +extern unsigned long ioremap_bot; #endif /* __ASSEMBLY__ */ #include <asm/book3s/64/hash.h> @@ -220,7 +232,6 @@ extern unsigned long __pgd_val_bits; #endif #include <asm/barrier.h> - /* * The second half of the kernel virtual space is used for IO mappings, * it's itself carved into the PIO region (ISA and PHB IO space) and @@ -239,8 +250,6 @@ extern unsigned long __pgd_val_bits; #define IOREMAP_BASE (PHB_IO_END) #define IOREMAP_END (KERN_VIRT_START + KERN_VIRT_SIZE) -#define vmemmap ((struct page *)VMEMMAP_BASE) - /* Advertise special mapping type for AGP */ #define HAVE_PAGE_AGP diff --git a/arch/powerpc/include/asm/book3s/64/radix.h b/arch/powerpc/include/asm/book3s/64/radix.h index 63eb629a8b64..f4709024b466 100644 --- a/arch/powerpc/include/asm/book3s/64/radix.h +++ b/arch/powerpc/include/asm/book3s/64/radix.h @@ -31,6 +31,74 @@ RADIX_PUD_INDEX_SIZE + RADIX_PGD_INDEX_SIZE + PAGE_SHIFT) #define RADIX_PGTABLE_RANGE (ASM_CONST(1) << RADIX_PGTABLE_EADDR_SIZE) +/* + * We support 52 bit address space, Use top bit for kernel + * virtual mapping. Also make sure kernel fit in the top + * quadrant. + * + * +------------------+ + * +------------------+ Kernel virtual map (0xc008000000000000) + * | | + * | | + * | | + * 0b11......+------------------+ Kernel linear map (0xc....) + * | | + * | 2 quadrant | + * | | + * 0b10......+------------------+ + * | | + * | 1 quadrant | + * | | + * 0b01......+------------------+ + * | | + * | 0 quadrant | + * | | + * 0b00......+------------------+ + * + * + * 3rd quadrant expanded: + * +------------------------------+ + * | | + * | | + * | | + * +------------------------------+ Kernel IO map end (0xc010000000000000) + * | | + * | | + * | 1/2 of virtual map | + * | | + * | | + * +------------------------------+ Kernel IO map start + * | | + * | 1/4 of virtual map | + * | | + * +------------------------------+ Kernel vmemap start + * | | + * | 1/4 of virtual map | + * | | + * +------------------------------+ Kernel virt start (0xc008000000000000) + * | | + * | | + * | | + * +------------------------------+ Kernel linear (0xc.....) + */ + +#define RADIX_KERN_VIRT_START ASM_CONST(0xc008000000000000) +#define RADIX_KERN_VIRT_SIZE ASM_CONST(0x0008000000000000) + +/* + * The vmalloc space starts at the beginning of that region, and + * occupies a quarter of it on radix config. + * (we keep a quarter for the virtual memmap) + */ +#define RADIX_VMALLOC_START RADIX_KERN_VIRT_START +#define RADIX_VMALLOC_SIZE (RADIX_KERN_VIRT_SIZE >> 2) +#define RADIX_VMALLOC_END (RADIX_VMALLOC_START + RADIX_VMALLOC_SIZE) +/* + * Defines the address of the vmemap area, in its own region on + * hash table CPUs. + */ +#define RADIX_VMEMMAP_BASE (RADIX_VMALLOC_END) + #ifndef __ASSEMBLY__ #define RADIX_PTE_TABLE_SIZE (sizeof(pte_t) << RADIX_PTE_INDEX_SIZE) #define RADIX_PMD_TABLE_SIZE (sizeof(pmd_t) << RADIX_PMD_INDEX_SIZE) |