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authorChris Zankel <chris@zankel.net>2014-02-24 00:34:36 -0800
committerChris Zankel <chris@zankel.net>2014-02-24 00:34:36 -0800
commitb3fdfc1b4b641d372e35ced98814289bc60bc5d1 (patch)
tree5f11d5ba885031dde45690745646519fb887f447 /arch/xtensa/mm
parentc0e50d41126e4786d9cf1105bdf783e55c99f915 (diff)
parentf63b6d7555cd4064554b39da4d44c4cbbc9d6a4a (diff)
downloadop-kernel-dev-b3fdfc1b4b641d372e35ced98814289bc60bc5d1.zip
op-kernel-dev-b3fdfc1b4b641d372e35ced98814289bc60bc5d1.tar.gz
Merge tag 'xtensa-for-next-20140221-1' into for_next
Xtensa fixes for 3.14: - allow booting xtfpga on boards with new uBoot and >128MBytes memory; - drop nonexistent GPIO32 support from fsf variant; - don't select USE_GENERIC_SMP_HELPERS; - enable common clock framework support, set up ethoc clock on xtfpga; - wire up sched_setattr and sched_getattr syscalls. Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'arch/xtensa/mm')
-rw-r--r--arch/xtensa/mm/init.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c
index 479d753..aff108d 100644
--- a/arch/xtensa/mm/init.c
+++ b/arch/xtensa/mm/init.c
@@ -90,7 +90,7 @@ int __init mem_reserve(unsigned long start, unsigned long end, int must_exist)
/*
- * Initialize the bootmem system and give it all the memory we have available.
+ * Initialize the bootmem system and give it all low memory we have available.
*/
void __init bootmem_init(void)
@@ -142,9 +142,14 @@ void __init bootmem_init(void)
/* Add all remaining memory pieces into the bootmem map */
- for (i=0; i<sysmem.nr_banks; i++)
- free_bootmem(sysmem.bank[i].start,
- sysmem.bank[i].end - sysmem.bank[i].start);
+ for (i = 0; i < sysmem.nr_banks; i++) {
+ if (sysmem.bank[i].start >> PAGE_SHIFT < max_low_pfn) {
+ unsigned long end = min(max_low_pfn << PAGE_SHIFT,
+ sysmem.bank[i].end);
+ free_bootmem(sysmem.bank[i].start,
+ end - sysmem.bank[i].start);
+ }
+ }
}
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