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| author | Max Filippov <jcmvbkbc@gmail.com> | 2014-03-23 00:17:43 +0100 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2014-04-01 23:35:51 +0200 |
| commit | 9ba067f93f1eec0d241f002812806b873dd4f802 (patch) | |
| tree | 423c136a38f9290bf8fba0ede928f9bc8e9bc3a8 /arch/xtensa/mm | |
| parent | xtensa: enable sorting extable at build time (diff) | |
| download | linux-9ba067f93f1eec0d241f002812806b873dd4f802.tar.xz linux-9ba067f93f1eec0d241f002812806b873dd4f802.zip | |
xtensa: split bootparam and kernel meminfo
Bootparam meminfo is a bootloader ABI, kernel meminfo is for the kernel
bookkeeping, keep them separate. Kernel doesn't care of memory region
types, so drop the type field and don't pass it to add_sysmem_bank.
Move kernel sysmem structures and prototypes to asm/sysmem.h and sysmem
variable and add_sysmem_bank to mm/init.c
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa/mm')
| -rw-r--r-- | arch/xtensa/mm/init.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c index aff108df92d3..4f78264e8bd8 100644 --- a/arch/xtensa/mm/init.c +++ b/arch/xtensa/mm/init.c @@ -27,6 +27,23 @@ #include <asm/bootparam.h> #include <asm/page.h> #include <asm/sections.h> +#include <asm/sysmem.h> + +struct sysmem_info sysmem __initdata; + +int __init add_sysmem_bank(unsigned long start, unsigned long end) +{ + if (sysmem.nr_banks >= SYSMEM_BANKS_MAX) { + pr_warn("Ignoring memory bank 0x%08lx size %ldKB\n", + start, end - start); + return -EINVAL; + } + sysmem.bank[sysmem.nr_banks].start = PAGE_ALIGN(start); + sysmem.bank[sysmem.nr_banks].end = end & PAGE_MASK; + sysmem.nr_banks++; + + return 0; +} /* * mem_reserve(start, end, must_exist) |