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authorMarkos Chandras <markos.chandras@imgtec.com>2014-01-15 14:06:03 +0000
committerRalf Baechle <ralf@linux-mips.org>2014-03-26 23:09:18 +0100
commit0893d3fb8d27320d4301f14a0b331df291a08044 (patch)
tree71126690cfaf4a5f1de4daa6fddfa25ce2184020 /arch/mips/mm
parent91119686f33928e2ced93eaedf4191cedbd0e827 (diff)
MIPS: mm: init: Add free_init_pages() callback for EVA
A core in EVA mode can have any possible segment mapping, so the default free_initmem_default() function may not always work as expected. Therefore, add a callback that platforms can use to free up the init section. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Diffstat (limited to 'arch/mips/mm')
-rw-r--r--arch/mips/mm/init.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 6b59617760c1..4fc74c78265a 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -422,10 +422,20 @@ void free_initrd_mem(unsigned long start, unsigned long end)
}
#endif
+void (*free_init_pages_eva)(void *begin, void *end) = NULL;
+
void __init_refok free_initmem(void)
{
prom_free_prom_memory();
- free_initmem_default(POISON_FREE_INITMEM);
+ /*
+ * Let the platform define a specific function to free the
+ * init section since EVA may have used any possible mapping
+ * between virtual and physical addresses.
+ */
+ if (free_init_pages_eva)
+ free_init_pages_eva((void *)&__init_begin, (void *)&__init_end);
+ else
+ free_initmem_default(POISON_FREE_INITMEM);
}
#ifndef CONFIG_MIPS_PGD_C0_CONTEXT