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Commit f64a8b79 authored by Hridya Valsaraju's avatar Hridya Valsaraju
Browse files

ANDROID: staging: android: ion: enable modularizing the ion driver 



This patch enable setting CONFIG_ION=m.

Bug: 147914088
Test: Build, boot, video playback is successful.
Change-Id: I014046fec793a10a61669faa18aa655048d5aaa4
Signed-off-by: default avatarHridya Valsaraju <hridya@google.com>
parent 025a1ee6

drivers/staging/android/ion/Kconfig

+1 −1
Original line number Diff line number Diff line 
menuconfig ION

	bool "Ion Memory Manager"

	tristate "Ion Memory Manager"

	depends on HAVE_MEMBLOCK && HAS_DMA && MMU

	select GENERIC_ALLOCATOR

	select DMA_SHARED_BUFFER

drivers/staging/android/ion/Makefile

+6 −5
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0

obj-$(CONFIG_ION) +=	ion.o ion-ioctl.o ion_heap.o

obj-$(CONFIG_ION_SYSTEM_HEAP) += ion_system_heap.o ion_page_pool.o

obj-$(CONFIG_ION_CARVEOUT_HEAP) += ion_carveout_heap.o

obj-$(CONFIG_ION_CHUNK_HEAP) += ion_chunk_heap.o

obj-$(CONFIG_ION_CMA_HEAP) += ion_cma_heap.o
 
obj-$(CONFIG_ION) +=	ion-alloc.o

ion-alloc-objs += ion.o ion-ioctl.o ion_heap.o

ion-alloc-$(CONFIG_ION_SYSTEM_HEAP) += ion_system_heap.o ion_page_pool.o

ion-alloc-$(CONFIG_ION_CARVEOUT_HEAP) += ion_carveout_heap.o

ion-alloc-$(CONFIG_ION_CHUNK_HEAP) += ion_chunk_heap.o

ion-alloc-$(CONFIG_ION_CMA_HEAP) += ion_cma_heap.o

drivers/staging/android/ion/ion.c

+33 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ 
#include <linux/miscdevice.h>

#include <linux/mm.h>

#include <linux/mm_types.h>

#include <linux/module.h>

#include <linux/rbtree.h>

#include <linux/sched/task.h>

#include <linux/seq_file.h>
@@ -660,4 +661,36 @@ static int ion_device_create(void) 
	kfree(idev);

	return ret;

}



#ifdef CONFIG_ION_MODULE

int ion_module_init(void)

{

	int ret;



	ret = ion_device_create();

#ifdef CONFIG_ION_SYSTEM_HEAP

	if (ret)

		return ret;



	ret = ion_system_heap_create();

	if (ret)

		return ret;



	ret = ion_system_contig_heap_create();

#endif

#ifdef CONFIG_ION_CMA_HEAP

	if (ret)

		return ret;



	ret = ion_add_cma_heaps();

#endif

	return ret;

}



module_init(ion_module_init);

#else

subsys_initcall(ion_device_create);

#endif



MODULE_LICENSE("GPL v2");

MODULE_DESCRIPTION("Ion memory allocator");

drivers/staging/android/ion/ion.h

+5 −0
Original line number Diff line number Diff line
@@ -336,4 +336,9 @@ long ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); 


int ion_query_heaps(struct ion_heap_query *query);



#ifdef CONFIG_ION_MODULE

int ion_add_cma_heaps(void);

int ion_system_heap_create(void);

int ion_system_contig_heap_create(void);

#endif

#endif /* _ION_H */

drivers/staging/android/ion/ion_cma_heap.c

+4 −1
Original line number Diff line number Diff line
@@ -134,9 +134,12 @@ static int __ion_add_cma_heaps(struct cma *cma, void *data) 
	return 0;

}



static int ion_add_cma_heaps(void)

int ion_add_cma_heaps(void)

{

	cma_for_each_area(__ion_add_cma_heaps, NULL);

	return 0;

}



#ifndef CONFIG_ION_MODULE

device_initcall(ion_add_cma_heaps);

#endif