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Commit a283738d authored by Zhenhua Huang's avatar Zhenhua Huang
Browse files

ion: implement interface to export total_pools_kb 



The ABI interface "/sys/kernel/ion/total_pools_kb"
was declared but not implemented before in Qcom system heap.
Implement it now.

Change-Id: I3140863c10600166d89ed055ba3be8f368d7e92a
Signed-off-by: default avatarZhenhua Huang <zhenhuah@codeaurora.org>
parent a61e7f34

drivers/staging/android/ion/heaps/ion_msm_system_heap.c

+40 −0
Original line number Diff line number Diff line
@@ -578,10 +578,50 @@ static int ion_msm_system_heap_shrink(struct ion_heap *heap, gfp_t gfp_mask, 
	return nr_total;

}



static long ion_msm_system_heap_get_pool_size(struct ion_heap *heap)

{

	struct ion_msm_system_heap *sys_heap;

	unsigned long total_size = 0;

	int i, j;

	struct ion_msm_page_pool *pool;



	sys_heap = to_msm_system_heap(heap);

	for (i = 0; i < NUM_ORDERS; i++) {

		pool = sys_heap->uncached_pools[i];

		total_size += (1 << pool->order) *

				pool->high_count;

		total_size += (1 << pool->order) *

				pool->low_count;

	}



	for (i = 0; i < NUM_ORDERS; i++) {

		pool = sys_heap->cached_pools[i];

		total_size += (1 << pool->order) *

				pool->high_count;

		total_size += (1 << pool->order) *

				pool->low_count;

	}



	for (i = 0; i < NUM_ORDERS; i++) {

		for (j = 0; j < VMID_LAST; j++) {

			if (!is_secure_vmid_valid(j))

				continue;

			pool = sys_heap->secure_pools[j][i];

		total_size += (1 << pool->order) *

				pool->high_count;

		total_size += (1 << pool->order) *

				pool->low_count;

		}

	}



	return total_size;

}



static struct ion_heap_ops system_heap_ops = {

	.allocate = ion_msm_system_heap_allocate,

	.free = ion_msm_system_heap_free,

	.shrink = ion_msm_system_heap_shrink,

	.get_pool_size = ion_msm_system_heap_get_pool_size,

};



static int ion_msm_system_heap_debug_show(struct ion_heap *heap,