[Crash-utility] [PATCH v2 3/3] [ppc] virtual address translation bits for PPC440

This patch adds the definition for PPC440 virtual address translation. On ppc44x, the virtual-address is split as below : Bits |0 10|11 19|20 31| ------------------------------------- | PGD | PMD | PAGE_OFFSET | ----------------------------------- Also the physical address is 64bit. Signed-off-by: Suzuki K. Poulose <suzuki(a)in.ibm.com&gt; --- defs.h | 5 +++++ ppc.c | 14 ++++++++++++++ 2 files changed, 19 insertions(+), 0 deletions(-) diff --git a/defs.h b/defs.h index aba13ea..7410412 100755 --- a/defs.h +++ b/defs.h @@ -2609,6 +2609,11 @@ struct load_module { #define DEFAULT_PTRS_PER_PGD (1024) #define DEFAULT_PTE_SIZE sizeof(ulong) +/* PPC440 translation bits */ +#define PPC440_PGDIR_SHIFT (21) +#define PPC440_PTRS_PER_PTE (512) +#define PPC440_PTRS_PER_PGD (2048) +#define PPC440_PTE_SIZE sizeof(unsigned long long) #define PGDIR_SHIFT (base_platform->pgdir_shift) #define PTRS_PER_PTE (base_platform->ptrs_per_pte) diff --git a/ppc.c b/ppc.c index 600df34..ea7247b 100755 --- a/ppc.c +++ b/ppc.c @@ -83,6 +83,20 @@ struct platform { .pte_size = DEFAULT_PTE_SIZE, }, { + .name = "ppc440", + .pgdir_shift = PPC440_PGDIR_SHIFT, + .ptrs_per_pgd = PPC440_PTRS_PER_PGD, + .ptrs_per_pte = PPC440_PTRS_PER_PTE, + .pte_size = PPC440_PTE_SIZE, + }, + { + .name = "ppc440gp", + .pgdir_shift = PPC440_PGDIR_SHIFT, + .ptrs_per_pgd = PPC440_PTRS_PER_PGD, + .ptrs_per_pte = PPC440_PTRS_PER_PTE, + .pte_size = PPC440_PTE_SIZE, + }, + { /* Keep this at the end */ .name = NULL, }