diff options
| author | Helge Deller <deller@gmx.de> | 2017-05-11 22:24:15 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2017-05-12 09:14:15 +0200 |
| commit | c9c2877d08d9aa0ca0a5c227ac795fbb76269300 (patch) | |
| tree | bb8c33d2619840e10d29c4e5caed49e8267bf4ba /arch/parisc/include/asm/pgtable.h | |
| parent | c8c3735997a3aa184fa81742bb6c4062a26af2f3 (diff) | |
| download | linux-c9c2877d08d9aa0ca0a5c227ac795fbb76269300.tar.bz2 | |
parisc: Add Page Deallocation Table (PDT) support
The firmare in most parisc machines maintains a Page Deallocation Table (PDT)
which holds a list of physical memory addresses where hardware detected memory
errors (single bit and double bit errors).
This patch adds the missing PDC firmware calls and the logic to read the PDT
from firmware, report all current PDT entries and exclude the reported bad
memory from being used by Linux.
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/include/asm/pgtable.h')
| -rw-r--r-- | arch/parisc/include/asm/pgtable.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h index 3a4ed9f91d57..71ca86cb0f16 100644 --- a/arch/parisc/include/asm/pgtable.h +++ b/arch/parisc/include/asm/pgtable.h @@ -511,6 +511,9 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, #define pte_same(A,B) (pte_val(A) == pte_val(B)) +struct seq_file; +extern void arch_report_meminfo(struct seq_file *m); + #endif /* !__ASSEMBLY__ */ |