Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 0893d3fb authored by Markos Chandras's avatar Markos Chandras Committed by Ralf Baechle
Browse files

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: default avatarMarkos Chandras <markos.chandras@imgtec.com>
parent 91119686

arch/mips/include/asm/bootinfo.h

+2 −0
Original line number Diff line number Diff line
@@ -112,6 +112,8 @@ extern void prom_free_prom_memory(void); 
extern void free_init_pages(const char *what,

			    unsigned long begin, unsigned long end);



extern void (*free_init_pages_eva)(void *begin, void *end);



/*

 * Initial kernel command line, usually setup by prom_init()

 */

arch/mips/mm/init.c

+11 −1
Original line number Diff line number Diff line
@@ -422,9 +422,19 @@ 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();

	/*

	 * 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);

}